Raras
Buscar doenças, sintomas, genes...
Síndrome Griscelli
ORPHA:381CID-10 · E70.3DOENÇA RARA

A Síndrome de Griscelli (SG) é caracterizada por um brilho prateado acinzentado no cabelo e pouca pigmentação na pele, que pode estar associada a problemas neurológicos (tipo 1), problemas de imunidade (tipo 2) ou ser isolada (tipo 3).

Mantido por Agente Raras·Colaborar como especialista →

Introdução

O que você precisa saber de cara

📋

A Síndrome de Griscelli (SG) é caracterizada por um brilho prateado acinzentado no cabelo e pouca pigmentação na pele, que pode estar associada a problemas neurológicos (tipo 1), problemas de imunidade (tipo 2) ou ser isolada (tipo 3).

Pesquisas ativas
1 ensaio
5 total registrados no ClinicalTrials.gov
Publicações científicas
297 artigos
Último publicado: 2026 Jan 30

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
<1 / 1 000 000
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.0
Worldwide
Casos conhecidos
150
pacientes catalogados
Início
Childhood
+ infancy
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: E70.3
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (6)
0202010279
Dosagem de aminoácidos (erros inatos)metabolic_test
0202010295
Dosagem de ácidos orgânicos na urinagenetic_test
0202010490
Teste de triagem para erros inatos do metabolismonewborn_screening
0202010694
Sequenciamento completo do exoma (WES)rehabilitation
0202080013
Teste do pezinho (triagem neonatal)
0301070040
Atendimento em reabilitação — doenças raras
Você se identifica com essa condição?
O Raras está aqui pra te apoiar — com ou sem diagnóstico

Encontrou um erro ou informação desatualizada? Sugira uma correção →

Entender a doença

Do básico ao detalhe, leia no seu ritmo

Preparando trilha educativa...

Sinais e sintomas

O que aparece no corpo e com que frequência cada sintoma acontece

Partes do corpo afetadas

🧠
Neurológico
12 sintomas
👁️
Olhos
7 sintomas
🧬
Pele e cabelo
7 sintomas
🩸
Sangue
6 sintomas
🫃
Digestivo
5 sintomas
🦴
Ossos e articulações
3 sintomas

+ 17 sintomas em outras categorias

Características mais comuns

90%prev.
Cabelo branco
Muito frequente (99-80%)
90%prev.
Cabelo prateado-acinzentado
Muito frequente (99-80%)
90%prev.
Manchas cutâneas hipopigmentadas
Muito frequente (99-80%)
90%prev.
Envelhecimento prematuro dos cabelos
Muito frequente (99-80%)
55%prev.
Reflexos tendíneos reduzidos
Frequente (79-30%)
55%prev.
Anormalidade dos neutrófilos
Frequente (79-30%)
62sintomas
Muito frequente (4)
Frequente (8)
Ocasional (24)
Sem dados (26)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 62 características clínicas mais associadas, ordenadas por frequência.

Cabelo brancoWhite hair
Muito frequente (99-80%)90%
Cabelo prateado-acinzentadoSilver-gray hair
Muito frequente (99-80%)90%
Manchas cutâneas hipopigmentadasHypopigmented skin patches
Muito frequente (99-80%)90%
Envelhecimento prematuro dos cabelosPremature graying of hair
Muito frequente (99-80%)90%
Reflexos tendíneos reduzidosReduced tendon reflexes
Frequente (79-30%)55%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico297PubMed
Últimos 10 anos136publicações
Pico202118 papers
Linha do tempo
2026Hoje · 2026🧪 2000Primeiro ensaio clínico📈 2021Ano de pico
Publicações por ano (últimos 10 anos)

Encontrou um erro ou informação desatualizada? Sugira uma correção →

Genética e causas

O que está alterado no DNA e como passa nas famílias

Genes associados

3 genes identificados com associação a esta condição. Padrão de herança: Autosomal recessive.

MYO5AUnconventional myosin-VaDisease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Processive actin-based motor that can move in large steps approximating the 36-nm pseudo-repeat of the actin filament. Can hydrolyze ATP in the presence of actin, which is essential for its function as a motor protein (PubMed:10448864). Involved in melanosome transport. Also mediates the transport of vesicles to the plasma membrane (By similarity). May also be required for some polarization process involved in dendrite formation (By similarity)

LOCALIZAÇÃO

VIAS BIOLÓGICAS (5)
Regulation of actin dynamics for phagocytic cup formationFCGR3A-mediated phagocytosisTranslocation of SLC2A4 (GLUT4) to the plasma membraneRegulation of MITF-M-dependent genes involved in pigmentationInsulin processing
MECANISMO DE DOENÇA

Griscelli syndrome 1

Rare autosomal recessive disorder that results in pigmentary dilution of the skin and hair, the presence of large clumps of pigment in hair shafts, silvery-gray hair and accumulation of melanosomes in melanocytes. GS1 patients show developmental delay, hypotonia and intellectual disability, without apparent immune abnormalities.

EXPRESSÃO TECIDUAL(Ubíquo)
Cérebro - Hemisfério cerebelar
68.3 TPM
Cerebelo
59.0 TPM
Brain Frontal Cortex BA9
53.8 TPM
Córtex cerebral
36.2 TPM
Brain Anterior cingulate cortex BA24
33.8 TPM
OUTRAS DOENÇAS (3)
Griscelli syndrome type 1Griscelli syndrome type 3neuroectodermal melanolysosomal disease
HGNC:7602UniProt:Q9Y4I1
RAB27ARas-related protein Rab-27ADisease-causing germline mutation(s) inTolerante
FUNÇÃO

The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion (PubMed:30771381). RAB27A regulates homeostasis of late endocytic pathway, including endosomal positioning, maturation an

LOCALIZAÇÃO

MembraneMelanosomeLate endosomeLysosome

VIAS BIOLÓGICAS (2)
RAB geranylgeranylationInsulin processing
MECANISMO DE DOENÇA

Griscelli syndrome 2

Rare autosomal recessive disorder that results in pigmentary dilution of the skin and hair, the presence of large clumps of pigment in hair shafts, and an accumulation of melanosomes in melanocytes. GS2 patients also develop an uncontrolled T-lymphocyte and macrophage activation syndrome, known as hemophagocytic syndrome, leading to death in the absence of bone marrow transplantation. Neurological impairment is present in some patients, likely as a result of hemophagocytic syndrome.

EXPRESSÃO TECIDUAL(Ubíquo)
Sangue
45.3 TPM
Pituitária
44.8 TPM
Pulmão
38.4 TPM
Próstata
31.2 TPM
Aorta
29.4 TPM
OUTRAS DOENÇAS (1)
Griscelli syndrome type 2
HGNC:9766UniProt:P51159
MLPHMelanophilinDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Rab effector protein involved in melanosome transport. Serves as link between melanosome-bound RAB27A and the motor protein MYO5A

LOCALIZAÇÃO

Cytoplasm

VIAS BIOLÓGICAS (1)
Regulation of MITF-M-dependent genes involved in pigmentation
MECANISMO DE DOENÇA

Griscelli syndrome 3

Rare autosomal recessive disorder characterized by pigmentary dilution of the skin and hair, the presence of large clumps of pigment in hair shafts, and an accumulation of melanosomes in melanocytes, without other clinical manifestations.

EXPRESSÃO TECIDUAL(Ubíquo)
Próstata
139.8 TPM
Glândula salivar
132.9 TPM
Cervix Ectocervix
114.9 TPM
Cervix Endocervix
82.7 TPM
Estômago
72.1 TPM
OUTRAS DOENÇAS (1)
Griscelli syndrome type 3
HGNC:29643UniProt:Q9BV36

Variantes genéticas (ClinVar)

243 variantes patogênicas registradas no ClinVar.

🧬 MYO5A: NM_001382347.1(MYO5A):c.697C>T (p.Arg233Ter) ()
🧬 MYO5A: NM_001382347.1(MYO5A):c.4409-1G>C ()
🧬 MYO5A: GRCh37/hg19 15q21.1-21.2(chr15:47392800-52877953)x1 ()
🧬 MYO5A: NM_001382347.1(MYO5A):c.655C>T (p.Arg219Cys) ()
🧬 MYO5A: NM_001382347.1(MYO5A):c.4568G>A (p.Arg1523His) ()
Ver todas no ClinVar

Classificação de variantes (ClinVar)

Distribuição de 356 variantes classificadas pelo ClinVar.

71
107
178
Patogênica (19.9%)
VUS (30.1%)
Benigna (50.0%)
VARIANTES MAIS SIGNIFICATIVAS
RAB27A: NM_183235.3(RAB27A):c.442_443del (p.Ala148fs) [Pathogenic]
RAB27A: NM_183235.3(RAB27A):c.382dup (p.Ile128fs) [Pathogenic]
MYO5A: NM_001382347.1(MYO5A):c.655C>T (p.Arg219Cys) [Likely pathogenic]
MLPH: NM_024101.7(MLPH):c.963_966del (p.Ala321_His322insTer) [Likely pathogenic]
RAB27A: NM_183235.3(RAB27A):c.34T>G (p.Phe12Val) [Uncertain significance]

Diagnóstico

Os sinais que médicos procuram e os exames que confirmam

Carregando...

Tratamento e manejo

Remédios, cuidados de apoio e o que precisa acompanhar

Pipeline de tratamentos
Pipeline regulatório — de medicamentos já aprovados a drogas em pesquisa exploratória.
3Fase 31
2Fase 21
·Pré-clínico2
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 4 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)

🇧🇷 Atendimento SUS — Síndrome Griscelli

🗺️

Selecione um estado ou use sua localização para ver resultados.

Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.

Pesquisa ativa

Ensaios clínicos abertos e novidades científicas recentes

Pesquisa e ensaios clínicos

5 ensaios clínicos encontrados, 1 ativos.

Distribuição por fase
Ver todos no ClinicalTrials.gov
🧪 Está conduzindo uma pesquisa?
Divulgue para pacientes e familiares que acompanham esta doença.
Divulgar pesquisa →

Publicações mais relevantes

Timeline de publicações
129 papers (10 anos)
#1

Assessment of Potential Side Effects Related To RAB27A Gene Therapy in Stem Cells.

Stem cell reviews and reports2026 Jan

RAB27A plays an essential role in the regulation of exocytosis and intracellular vesicle trafficking. Loss-of-function mutations in the RAB27A gene cause dysfunctional immune cells and Griscelli Syndrome Type 2 (GS-2), whereas upregulation of RAB27A in cancer cells is associated with a worse prognosis and increased metastasis. Here, we wanted to assess the potential side effects of overexpression of RAB27A in different types of healthy stem cells as preparation for the development of gene therapy for GS-2. Bone marrow mesenchymal stem cells (BM-MSCs) were obtained from GS-2 patients and healthy donors. Healthy murine bone marrow-derived and human cord blood-derived hematopoietic stem/progenitor cells (HSPCs) were transduced with different lentiviral vectors carrying a codon-optimized RAB27A (RAB27Aco) transgene. Cells were used for in vitro functional assays and assessed using flow cytometry, Western Blot and RT-PCR. In vivo transplantation assays in mice were used to assess the effect of RAB27A on stem cell function. Engraftment was assessed using flow cytometry, sections of BM-MSC injection sites were analyzed using histological staining. Overexpression of RAB27A resulted in phenotypic changes in BM-MSCs and decreased colony-forming capacity of HSPCs. Transplantation of RAB27A + stem cells was not associated with any tumorigenesis. Despite high expression of RAB27A in HSPCs before transplantation, RAB27A levels in peripheral blood, bone marrow, and spleen cells remained low, indicating overexpression of RAB27A may have affected the long-term reconstitution potential. Development of gene therapy for GS-2 may require fine-tuning of RAB27A expression but is not likely to be complicated by RAB27A-induced tumorigenesis.

#2

Atypical Clinical Course of Griscelli Syndrome Type 2 With Primarily Neurologic Presentation and Adult-Onset in a 46-Year-Old Male.

American journal of medical genetics. Part A2026 Mar 18

Griscelli Syndrome Type 2 (GS2) is a rare autosomal recessive disorder caused by pathogenic mutations in the RAB27A gene. Typically, it is characterized by cutaneous hypopigmentation, immunodeficiency, with or without neurological abnormalities secondary to hemophagocytic lymphohistiocytosis (HLH). Without treatment, GS2 often results in fatal outcomes within the first decade of life. Adult-onset GS2 is extremely rare, with few documented cases. We describe a 48-year-old patient with a neurological presentation: cerebellar dysarthria, ataxia, nystagmus, and muscle hypotonia in the lower limbs. Diagnostic workup included next-generation sequencing (NGS panel), clinical investigations, and segregation analysis in the family to confirm the diagnosis of GS2. Genetic testing revealed two variants in RAB27A: The likely pathogenic c.550C>T [p.(Arg184*)] and c.213G>T [p.(Gln71His)], a variant of uncertain significance. Clinical evaluation confirmed irregular hair pigmentation due to melanosome transport defect, low natural killer cell activity, cytopenia, hypertriglyceridemia, elevated serum ferritin, and brain tissue biopsy compatible with hemophagocytosis, thus cementing the clinical diagnosis of GS2. Segregation analysis confirmed the trans configuration of the variants. Based on the clinical and genetic evidence, the p.Gln71His variant was reclassified as likely pathogenic per ACMG criteria. This rare late-onset GS2 case highlights the need to consider GS2 in adult patients with atypical presentations. Early diagnosis is vital for effective intervention. Greater clinical awareness and research are needed to understand its phenotypic spectrum in adults.

#3

Griscelli syndrome type 2: A rare case report of pediatric immunodeficiency and neurological implications.

Medicine2026 Jan 02

Griscelli syndrome (GS) is a rare autosomal recessive disorder marked by partial oculocutaneous albinism, immunodeficiency, and neurological issues. It has 3 types based on genetic mutations. This report focuses on a patient with GS type 2, characterized by immune abnormalities and neurological symptoms, with only 160 cases documented globally. A 1-year-old boy presented with hyperthermia, diarrhea, and vomiting, revealing hypopigmented skin and silvery-gray hair. He exhibited tachycardia, abdominal distension, hepatosplenomegaly, and signs of immunocompromise. Neurologically, he showed developmental delays and hyperreflexia. Lab tests indicated anemia, thrombocytopenia, and elevated triglycerides. Based on clinical history and laboratory tests diagnosed with GS type 2. The patient received symptomatic treatment, antibiotics, and frequent transfusions, with strict infection prevention due to limited resources for stem cell transplantation. GS, identified in 1978, is a rare autosomal recessive disorder marked by partial albinism and immunodeficiency, with around 160 cases primarily from the Mediterranean. It comprises 3 types: GS1, GS2, and GS3, each with unique genetic and clinical features. GS1 exhibits partial albinism and neurological issues without immune effects due to MYO5A mutations. GS2 presents severe immunodeficiency and risks such as hemophagocytic lymphohistiocytosis linked to RAB27A mutations. GS3, caused by melanophilin gene mutations, has a better prognosis. Diagnosis involves hair microscopy and genetic testing, and while supportive treatments exist, early diagnosis is vital for improved outcomes. GS is a rare genetic disorder with varied symptoms, categorized into 3 types, requiring genetic testing for diagnosis and treatment ranging from management to stem cell transplantation.

#4

P300 regulates Melanophilin expression by modulating TFAP2A binding through histone acetylation.

Journal of dermatological science2025 May

Melanophilin is an effector protein that interacts with Rab27a and Myosin Va and regulates melanosome transport in melanocytes. Type 3 Griscelli syndrome, a mutation in Mlph gene, is characterized by partial pigment dilution, without any associated systemic problems. P300 plays roles in histone acetylation and changes chromatin state. There has been considerable interest in epigenetic regulation of melanocytes. However, epigenetic control of Mlph expression is still poorly understood. We investigated the underlying mechanisms by which P300 controls Mlph expression by histone acetylation. siRNA transfection was performed to knock down gene expression. We used numerous methods, including western blotting, quantitative PCR (qPCR), co-immunoprecipitation (co-IP), and chromatin immunoprecipitation (ChIP), to identify the mechanisms of epigenetic regulation via P300. Perinuclear aggregation of melanosome is induced and Mlph expression is decreased by knockdown of P300. In this process, TFAP2A acts as a transcription factor and regulates Mlph transcription. Knockdown of P300 decreased TFAP2A binding to intron region of Mlph and H3K27ac level and then finally reduced Mlph expression. Our study revealed that P300 facilitates an open chromatin state through acetylation of H3K27 and TFAP2A could regulate Mlph expression by binding to the intron 1 region of Mlph. Mlph expression is regulated by epigenetic regulation via P300 in melanocytes. These findings provide new insights into the epigenetic mechanism of melanosome transport.

#5

Griscelli Syndrome in Two Siblings with Silvery Hair: A Case Report.

JNMA; journal of the Nepal Medical Association2025 Dec

Griscelli syndrome (GS) is an uncommon disorder characterized by partial albinism, which gives hair a silvery-grey sheen and variable immunodeficiency or neurological impairment, with pancytopenia, immune dysfunction, hepatosplenomegaly, neurological impairment, hypogammaglobulinemia, and variable cellular immunodeficiency. Three variants GS1, GS2 and GS3 have been described in different phenotypes of the disease with varying presentation. We present two neonates, born two years apart, to parents with third-degree consanguinity. Both had features of partial albinism and neutropenia at birth. Microscopy of hair showed characteristic large aggregates of pigment granules dispersed irregularly along the hair shaft. Given their family history and high clinical suspicion, a diagnosis of Griscelli syndrome was made. Early diagnosis of Griscelli syndrome can offer treatment options like Bone Marrow Transplant and prevent fatal complications like hemophagocytic lymphohistiocytosis. Supportive management during transplantation comprises of antimicrobial therapy, immunoglobulin replacement, and vigilant monitoring for complications like graft versus host disease.

Publicações recentes

Ver todas no PubMed

📚 EuropePMC168 artigos no totalmostrando 134

2026

Atypical Clinical Course of Griscelli Syndrome Type 2 With Primarily Neurologic Presentation and Adult-Onset in a 46-Year-Old Male.

American journal of medical genetics. Part A
2025

Griscelli Syndrome in Two Siblings with Silvery Hair: A Case Report.

JNMA; journal of the Nepal Medical Association
2026

Griscelli syndrome type 2: A rare case report of pediatric immunodeficiency and neurological implications.

Medicine
2025

Characteristics of Secondary Malignancy Among Children With Primary Immunodeficiency Disorders in Saudi Arabia.

Cureus
2025

Griscelli Syndrome Type 2 Revealed by Macrophage Activation Syndrome: Two Cases From the Same Family.

Cureus
2026

Assessment of Potential Side Effects Related To RAB27A Gene Therapy in Stem Cells.

Stem cell reviews and reports
2025

Case Report: Late-onset primary hemophagocytic lymphohistiocytosis leading to the diagnosis of Griscelli syndrome type 2 in a young woman with phenotypically inapparent partial albinism.

Frontiers in immunology
2025

Griscelli Syndrome: A Case Report from Pakistan, A Review of the Literature, and an Approach to Hematological Disorders Associated With Albinism.

Cureus
2025

Effect of genetic mutations on outcomes of stem cell transplantation in children with hemophagocytic lymphohistiocytosis.

Bone marrow transplantation
2025

Griscelli Syndrome Type 2 Secondary to a Novel RAB27A Variant Presenting With Dermatitis.

Journal of cutaneous pathology
2025

P300 regulates Melanophilin expression by modulating TFAP2A binding through histone acetylation.

Journal of dermatological science
2025

A novel, rapidly progressive ataxia due to a spontaneous Myo5a mutation in mice impairs transport proteins and alters mitochondria.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology
2024

Recurrent Hospitalisation in a Child With Hypopigmented Hair: Inborn Errors of Immunity Emerge.

Cureus
2024

Griscelli syndrome: Erdheim-Chester disease-like local presentation progressing to accelerated phase.

The Turkish journal of pediatrics
2025

Exploring the landscape of congenital and idiopathic neutropenia in Moroccan children: a comprehensive retrospective analysis.

Immunologic research
2024

Role of Morphology in the Diagnosis of an Unsuspected Case of Chediak-Higashi Syndrome: A Case Report.

Cureus
2025

Pulmonary Failure as Presentation of Griscelli Syndrome Type 2.

Pediatric pulmonology
2024

Griscelli Syndrome Type 2: Comprehensive Analysis of 149 New and Previously Described Patients with RAB27A Deficiency.

Journal of clinical immunology
2024

Early diagnosis of immunodeficient patients with partial albinism: The role of hair study and peripheral blood smear.

Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology
2025

Primary cutaneous T-cell lymphoma not otherwise specified reveals a novel RAB27A variant in Griscelli syndrome type 2.

The British journal of dermatology
2024

Facial cutaneous pigmentation pattern helps differentiate between Griscelli syndrome and Chediak-Higashi syndrome.

Pediatrics international : official journal of the Japan Pediatric Society
2024

Griscelli syndrome: a diagnostic challenge of a rare disease: a case report.

Annals of medicine and surgery (2012)
2024

Silver hair in a neonate: a tale of 2 fatal cases.

Oxford medical case reports
2024

Diagnostic guidelines for familial hemophagocytic lymphohistiocytosis revisited.

Blood
2024

Allogeneic stem cell transplant in primary hemophagocytic lymphohistiocytosis - a single-center experience.

Annals of hematology
2024

Albinism and Primary Immunodeficiency in Infants: A Case Study of Griscelli Syndrome.

Cureus
2024

First Co-Occurrence of Griscelli Syndrome Type 2 and Neurofibromatosis Type 1.

Molecular syndromology
2024

Silvery Gray Hair Syndrome With Hemophagocytic Lymphohistiocytosis: A Case Report.

Cureus
2023

Hemophagocytic lymphohistiocytosis in children with Griscelli syndrome type 2: genetics, laboratory findings and treatment.

American journal of clinical and experimental immunology
2023

Griscelli Syndrome Type 2 Presenting with Isolated Neurologic Disorder.

Neurology India
2024

Successful haploidentical bone marrow transplantation in Griscelli syndrome type 2 with non-busulfan-based regimen and post-transplantation cyclophosphamide: a case report and review of the literature.

Pediatric hematology and oncology
2023

Griscelli Syndrome With Hemophagocytic Lymphohistiocytosis: A Rare Case Report.

Cureus
2023

[Acute cerebellar ataxia in Griscelli syndrome type 2].

Revista de neurologia
2023

Immunodeficiency with susceptibility to lymphoma with complex genotype affecting energy metabolism (FBP1, ACAD9) and vesicle trafficking (RAB27A).

Frontiers in immunology
2023

Molecular findings and clinical manifestations of 18 Iranian children with Griscelli syndrome type 2: Two novel homozygote mutations in RAB27A gene in a patient.

Scandinavian journal of immunology
2023

Slivers of Hair - A Clue to Uncover Silver Hair Syndromes.

International journal of trichology
2023

Griscelli Syndrome in Skin of Color: A Trichoscopic Perspective.

Indian journal of dermatology
2024

The Role of Rab GTPases in the development of genetic and malignant diseases.

Molecular and cellular biochemistry
2023

Hematopoietic stem cell Transplantation in Children with very Early Onset Inflammatory Bowel Disease Secondary to Monogenic Disorders of immune-dysregulation.

Indian journal of hematology &amp; blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion
2023

Griscelli syndrome type 1: a novel pathogenic variant, and review of literature.

Molecular genetics and genomics : MGG
2022

Evaluation of hair structural abnormalities in children with different neurological diseases.

The Turkish journal of pediatrics
2022

End-stage Renal Disease in Griscelli Syndrome.

Indian journal of nephrology
2023

Griscelli Syndrome Type 1: Hair Microscopy Clinches the Diagnosis.

Indian journal of pediatrics
2022

Overlapping Machinery in Lysosome-Related Organelle Trafficking: A Lesson from Rare Multisystem Disorders.

Cells
2023

The first case of Wickerhamomyces anomalus fungemia in Iran in an immuneodeficient child, a review on the literature.

Journal de mycologie medicale
2022

Hemiparesis Revealing a Unique Neurological Hemophagocytic Lymphohistiocytosis in a Patient With Griscelli Syndrome Type 2.

Cureus
2022

Neonatal Onset of Hemophagocytic Lymphohistiocytosis Due to Prenatal Varicella-Zoster Infection in a Neonate with Griscelli Syndrome Type 2.

Iranian journal of allergy, asthma, and immunology
2023

MAP kinase activating death domain deficiency is a novel cause of impaired lymphocyte cytotoxicity.

Blood advances
2022

Case series on Silvery Hair Syndromes: Single Center Experience.

Indian journal of dermatology
2022

Novel RAB27A Variant Associated with Late-Onset Hemophagocytic Lymphohistiocytosis Alters Effector Protein Binding.

Journal of clinical immunology
2022

High Prevalence of Hemophagocytic Lymphohistiocytosis in Acute Liver Failure of Infancy.

The Journal of pediatrics
2022

Identification of a Novel MLPH Missense Mutation in a Chinese Griscelli Syndrome 3 Patient.

Frontiers in medicine
2022

Griscelli Syndrome Type 3 in Siblings.

International journal of trichology
2022

Treosulfan-Based Conditioning in Matched Family, Unrelated and Haploidentical Hematopoietic Stem Cell Transplantation for Genetic Hemophagocytic Lymphohistiocytosis: Experience and Outcomes over 10 Years from India.

Indian journal of hematology &amp; blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion
2021

Late Endocrine Effects after Stem Cell Transplant in a Young Girl with Griscelli Syndrome.

Case reports in pediatrics
2022

The First Korean Case of Griscelli Syndrome Type 2 With Hemophagocytic Lymphohistiocytosis and Partial Albinism.

Annals of laboratory medicine
2021

Hair microscopy: an easy adjunct to diagnosis of systemic diseases in children.

Applied microscopy
2021

MYO5A Frameshift Variant in a Miniature Dachshund with Coat Color Dilution and Neurological Defects Resembling Human Griscelli Syndrome Type 1.

Genes
2021

Granulomatous Lymphocytic Interstitial Lung Disease in a Spectrum of Pediatric Primary Immunodeficiencies.

Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society
2021

Successful rescue of a lethal Griscelli syndrome type 2 presenting with neurological involvement and hemophagocytic lymphohistiocytosis: a case report.

BMC pediatrics
2022

Rubella vaccine-induced granulomas are a novel phenotype with incomplete penetrance of genetic defects in cytotoxicity.

The Journal of allergy and clinical immunology
2021

Griscelli Syndrome in a seven years old girl.

Clinical case reports
2021

Development, characterization, and hematopoietic differentiation of Griscelli syndrome type 2 induced pluripotent stem cells.

Stem cell research &amp; therapy
2021

Refractory Seizure in a Patient With Griscelli Syndrome: A Unique Case With One Mutation and a Novel Deletion.

Cureus
2021

Hair Shaft Examination: A Practical Tool to Diagnose Griscelli Syndrome.

Dermatopathology (Basel, Switzerland)
2021

Delayed diagnosis of Griscelli syndrome type 2 with compound heterozygote RAB27A variants presenting with pulmonary failure.

Pediatric hematology and oncology
2021

Diagnostic and therapeutic caveats in Griscelli syndrome.

Scandinavian journal of immunology
2021

Primary immunodeficiency associated with hypopigmentation: A differential diagnosis approach.

Allergologia et immunopathologia
2021

Lupus manifestations in children with primary immunodeficiency diseases: Comprehensive phenotypic and genetic features and outcome.

Modern rheumatology
2020

Melanogenesis Connection with Innate Immunity and Toll-Like Receptors.

International journal of molecular sciences
2020

Griscelli Syndrome Type 2 Sine Albinism: Unraveling Differential RAB27A Effector Engagement.

Frontiers in immunology
2020

Griscelli Syndrome Type 3 with Coexistent Universal Dyschromia-An Uncommon Association of a Rare Entity.

Indian dermatology online journal
2021

Melanosome transport and regulation in development and disease.

Pharmacology &amp; therapeutics
2021

Rab GTPases: Key players in melanosome biogenesis, transport, and transfer.

Pigment cell &amp; melanoma research
2020

Neuroimaging Findings in Griscelli syndrome: A case report and review of the literature.

Radiology case reports
2021

Cutaneous granulomas as the presenting manifestation of Griscelli syndrome type 2.

Pediatric dermatology
2021

Partial albinism and immunodeficiency in patients with Hermansky-Pudlak Type II: Introducing 2 novel mutations.

Scandinavian journal of immunology
2020

Novel homozygous nonsense variant in MLPH causing Griscelli syndrome type 3 in a consanguineous Pakistani family.

The Journal of dermatology
2020

A founder RAB27A variant causes Griscelli syndrome type 2 with phenotypic heterogeneity in Qatari families.

American journal of medical genetics. Part A
2020

[Clinical study of haploidentical hematopoietic stem cell transplantation on 15 cases of adult-onset primary hemophagocytic lymphohistiocytosis].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi
2021

Hair pigment distribution changes after haematopoietic stem cell transplantation in Griscelli syndrome type 2.

Journal of the European Academy of Dermatology and Venereology : JEADV
2020

Considering immunologic and genetic evaluation for HLH in neuroinflammation: A case of Griscelli syndrome type 2 with neurological symptoms and a lack of albinism.

Pediatric blood &amp; cancer
2020

Case series of three adult patients with exceptional clinical presentations of haemophagocytic lymphohistiocytosis.

The Netherlands journal of medicine
2020

Hemophagocytic Lymphohistiocytosis in Patients With Primary Immunodeficiency.

Journal of pediatric hematology/oncology
2020

Hematopoietic stem cell transplantation in children with Griscelli syndrome type 2: a single-center report on 35 patients.

Bone marrow transplantation
2020

Genetic analysis in three Egyptian patients with Griscelli syndrome Type 1 reveals new nonsense mutations in MYO5A.

Clinical and experimental dermatology
2020

Transfer of extracellular vesicle-microRNA controls germinal center reaction and antibody production.

EMBO reports
2020

Griscelli syndrome type 3 in Ethiopian sisters resulting from a homozygous missense mutation in MLPH.

International journal of dermatology
2019

Anakinra as an agent to control hemophagocytic lymphohistiocytosis in Griscelli type 2.

Pediatric blood &amp; cancer
2019

Griscelli Type 2 Syndrome and Hemophagocytic Lymphohistiocytosis: Sisters With the Same Mutation but Different Presentations.

Journal of pediatric hematology/oncology
2020

Griscelli syndrome type 2.

QJM : monthly journal of the Association of Physicians
2019

Hematopoietic stem cell transplantation in children with Griscelli Syndrome type 2: Experience and outcomes.

Indian journal of pathology &amp; microbiology
2019

Myosin Va and spermine synthase: partners in exosome transport.

Bioscience reports
2019

The road to lysosome-related organelles: Insights from Hermansky-Pudlak syndrome and other rare diseases.

Traffic (Copenhagen, Denmark)
2019

Congenital Hypopigmentary Disorders with Multiorgan Impairment: A Case Report and an Overview on Gray Hair Syndromes.

Medicina (Kaunas, Lithuania)
2019

Haploidentical Stem Cell Transplantation with Post-Transplant Cyclophosphamide for Primary Immune Deficiency Disorders in Children: Challenges and Outcome from a Tertiary Care Center in South India.

Journal of clinical immunology
2019

Selective rickets from localized advanced maturation-a case report.

Skeletal radiology
2018

[Griscelli syndrome type 3: A new case].

Annales de dermatologie et de venereologie
2018

Usefulness of the skin biopsy as a tool in the diagnosis of silvery hair syndrome.

Pediatric dermatology
2018

Oral features of Griscelli syndrome type II: A rare case report.

Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
2018

Silvery hair with dyschromatosis: Griscelli syndrome type 3 or familial gigantic melanocytosis.

Journal of cutaneous pathology
2018

Macrophage activation syndrome associated with griscelli syndrome type 2: case report and review of literature.

The Pan African medical journal
2018

A RAB27A 5' untranslated region structural variant associated with late-onset hemophagocytic lymphohistiocytosis and normal pigmentation.

The Journal of allergy and clinical immunology
2018

Griscelli Syndrome with Fibronodular Sclerodermatous Chronic Graft Versus Host Disease.

Indian journal of hematology &amp; blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion
2018

A lysosome targetable versatile fluorescent probe for imaging viscosity and peroxynitrite with different fluorescence signals in living cells.

Journal of materials chemistry. B
2017

Hermansky-Pudlak syndrome: Report of two patients with updated genetic classification and management recommendations.

Pediatric dermatology
2017

Hematopoietic stem cell transplantation in children with Griscelli syndrome: A single-center experience.

Pediatric transplantation
2017

Analogs of human genetic skin disease in domesticated animals.

International journal of women's dermatology
2017

Light Microscopy and Polarized Microscopy: A Dermatological Tool to Diagnose Gray Hair Syndromes.

International journal of trichology
2018

Polymorphic gastric lesions and hemorrhage after first dose of chemotherapy in a child with diffuse large B-cell lymphoma.

Clinics and research in hepatology and gastroenterology
2017

Griscelli syndrome: A rare disorder.

Neurology India
2017

A RAB27A duplication in several cases of Griscelli syndrome type 2: An explanation for cases lacking a genetic diagnosis.

Human mutation
2017

Mutation analysis and prenatal diagnosis of a family with Griscelli syndrome type 2: two novel mutations in the RAB27A gene.

World journal of pediatrics : WJP
2017

Griscelli syndrome subtype 2 with hemophagocytic lympho-histiocytosis: A case report and review of literature.

Intractable &amp; rare diseases research
2017

"Road-Dividing Line"-Like Pigmentation of Hair as a Diagnostic Clue for Griscelli Syndrome.

Skin appendage disorders
2016

Griscelli syndrome type-3.

Indian dermatology online journal
2017

Myosins: Domain Organisation, Motor Properties, Physiological Roles and Cellular Functions.

Handbook of experimental pharmacology
2016

Haemophagocytic lymphohistiocytosis and silvery hair in Griscelli syndrome.

British journal of haematology
2017

Further evidence for genotype-phenotype disparity in Griscelli syndrome.

The British journal of dermatology
2016

Spontaneous repigmentation of silvery hair in an infant with congenital hydrops fetalis and hypoproteinemia.

Cutis
2016

PARTIAL OCULOCUTANEOUS ALBINISM AND IMMUNODEFICIENCY SYNDROMES: TEN YEARS EXPERIENCE FROM A SINGLE CENTER IN TURKEY.

Genetic counseling (Geneva, Switzerland)
2016

Boy with silvery grey hair and immunodeficiency.

Journal of paediatrics and child health
2017

Griscelli Syndrome Presented with Status Epilepticus and Hemophagocytic Lymphohistiocytosis.

Turkish journal of haematology : official journal of Turkish Society of Haematology
2016

A novel Rab27a mutation binds melanophilin, but not Munc13-4, causing immunodeficiency without albinism.

The Journal of allergy and clinical immunology
2017

Hematopoietic Stem Cell Transplant for Primary Immunodeficiency Diseases: A Single-Center Experience.

Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation
2016

Griscelli syndrome type 2: A rare and fatal syndrome in a South Indian boy.

Indian journal of pathology &amp; microbiology
2016

Severe anemia due to parvovirus B19 in a silver haired boy.

Indian journal of pathology &amp; microbiology
2016

Optimization of cerebellar purkinje neuron cultures and development of a plasmid-based method for purkinje neuron-specific, miRNA-mediated protein knockdown.

Methods in cell biology
2015

Silvery Hair with Speckled Dyspigmentation: Chediak-Higashi Syndrome in Three Indian Siblings.

International journal of trichology
2015

Griscelli Syndrome Type 3: Two New Cases and Review of the Literature.

Pediatric dermatology
2015

Seizure as the presenting manifestation in Griscelli syndrome type 2.

Pediatric neurology
2014

Griscelli syndrome: a case report.

Iranian journal of child neurology
2015

Incidence and clinical presentation of primary hemophagocytic lymphohistiocytosis in Sweden.

Pediatric blood &amp; cancer
2015

Hemophagocytic lymphohistiocytosis caused by dominant-negative mutations in STXBP2 that inhibit SNARE-mediated membrane fusion.

Blood
Ver todos os 168 no EuropePMC

Associações

Organizações que acompanham esta doença — pra ter apoio e orientação

Ainda não temos associações cadastradas para Síndrome Griscelli.

É de uma associação que acompanha esta doença? Fale com a gente →

Comunidades

Grupos ativos de quem convive com esta doença aqui no Raras

Ainda não existe comunidade no Raras para Síndrome Griscelli

Pacientes, familiares e cuidadores se organizam em comunidades pra compartilhar experiências, fazer perguntas e se apoiar. Você pode ser o primeiro.

Tire suas dúvidas

Perguntas, dicas e experiências compartilhadas aqui na página

Participe da discussão

Faça login para postar dúvidas, compartilhar experiências e interagir com especialistas.

Fazer login

Doenças relacionadas

Doenças com sintomas parecidos — ajudam quem ainda está buscando diagnóstico

Referências e fontes

Bases de dados externas citadas neste artigo

Publicações científicas

Artigos indexados no PubMed ligados a esta doença no grafo RarasNet — título, periódico e PMID direto da fonte, sem intermediação de IA.

  1. Assessment of Potential Side Effects Related To RAB27A Gene Therapy in Stem Cells.
    Stem cell reviews and reports· 2026· PMID 41075149mais citado
  2. Atypical Clinical Course of Griscelli Syndrome Type 2 With Primarily Neurologic Presentation and Adult-Onset in a 46-Year-Old Male.
    American journal of medical genetics. Part A· 2026· PMID 41851022mais citado
  3. Griscelli syndrome type 2: A rare case report of pediatric immunodeficiency and neurological implications.
    Medicine· 2026· PMID 41496009mais citado
  4. P300 regulates Melanophilin expression by modulating TFAP2A binding through histone acetylation.
    Journal of dermatological science· 2025· PMID 40246651mais citado
  5. Griscelli Syndrome in Two Siblings with Silvery Hair: A Case Report.
    JNMA; journal of the Nepal Medical Association· 2025· PMID 41782981mais citado
  6. Silver Strands and Skin Spots: Unveiling Griscelli Syndrome Type 3 in a 7-year-old Girl.
    Dermatol Pract Concept· 2026· PMID 41912227recente
  7. Characteristics of Secondary Malignancy Among Children With Primary Immunodeficiency Disorders in Saudi Arabia.
    Cureus· 2025· PMID 41179098recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:381(Orphanet)
  2. MONDO:0018306(MONDO)
  3. GARD:10913(GARD (NIH))
  4. Variantes catalogadas(ClinVar)
  5. Busca completa no PubMed(PubMed)
  6. Q3281274(Wikidata)

Dados compilados pelo RarasNet a partir de fontes abertas (Orphanet, OMIM, MONDO, PubMed/EuropePMC, ClinicalTrials.gov, DATASUS, PCDT/MS). Este conteúdo é informativo e não substitui avaliação médica.

Conteúdo mantido por Agente Raras · Médicos e pesquisadores podem colaborar

Compêndio · Raras BR

Síndrome Griscelli

ORPHA:381 · MONDO:0018306
Prevalência
<1 / 1 000 000
Casos
150 casos conhecidos
Herança
Autosomal recessive
CID-10
E70.3 · Albinismo
Ensaios
1 ativos
Início
Childhood, Infancy
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C0398794
EuropePMC
Wikidata
Papers 10a
DiscussaoAtiva

Nenhuma novidade ainda. O agente esta monitorando.

0membros
0novidades