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  1. Article ; Online: A

    Abu Shtaya, Aasem / Kedar, Inbal / Bazak, Lily / Basel-Salmon, Lina / Barhom, Sarit Farage / Naftali, Michal / Eskin-Schwartz, Marina / Birk, Ohad S / Polager-Modan, Shirley / Keidar, Nitzan / Reznick Levi, Gili / Levi, Zohar / Yablonski-Peretz, Tamar / Mahamid, Ahmad / Segol, Ori / Matar, Reut / Bareli, Yifat / Azoulay, Noy / Goldberg, Yael

    Genes

    2024  Volume 15, Issue 3

    Abstract: POT1 (Protection of Telomeres 1) is a key component of the six-membered shelterin complex that plays a critical role in telomere protection and length regulation. Germline variants in ... ...

    Abstract POT1 (Protection of Telomeres 1) is a key component of the six-membered shelterin complex that plays a critical role in telomere protection and length regulation. Germline variants in the
    MeSH term(s) Male ; Humans ; Female ; Adult ; Middle Aged ; Aged ; Melanoma/genetics ; Leukemia, Lymphocytic, Chronic, B-Cell/genetics ; Telomere-Binding Proteins/genetics ; Skin Neoplasms/genetics ; Thyroid Neoplasms ; Shelterin Complex
    Chemical Substances Telomere-Binding Proteins ; POT1 protein, human ; Shelterin Complex
    Language English
    Publishing date 2024-03-13
    Publishing country Switzerland
    Document type Review ; Journal Article
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes15030355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A Novel Mutation in a Critical Region for the Methyl Donor Binding in DNMT3B Causes Immunodeficiency, Centromeric Instability, and Facial Anomalies Syndrome (ICF).

    Rechavi, Erez / Lev, Atar / Eyal, Eran / Barel, Ortal / Kol, Nitzan / Barhom, Sarit Farage / Pode-Shakked, Ben / Anikster, Yair / Somech, Raz / Simon, Amos J

    Journal of clinical immunology

    2016  Volume 36, Issue 8, Page(s) 801–809

    Abstract: Purpose: Immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome is an extremely rare autosomal recessive disease. The immune phenotype is characterized by hypogammaglobulinemia in the presence of B cells. T cell lymphopenia also ... ...

    Abstract Purpose: Immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome is an extremely rare autosomal recessive disease. The immune phenotype is characterized by hypogammaglobulinemia in the presence of B cells. T cell lymphopenia also develops in some patients. We sought to further investigate the immune defect in an ICF patient with a novel missense mutation in DNMT3B and a severe phenotype.
    Methods: Patient lymphocytes were examined for subset counts, immunoglobulin levels, T and B cell de novo production (via excision circles) and receptor repertoire diversity. Mutated DNMT3B protein structure was modeled to assess the effect of a mutation located outside of the catalytic region on protein function.
    Results: A novel homozygous missense mutation, Ala585Thr, was found in DNMT3B. The patient had decreased B cell counts with hypogammaglobulinemia, and normal T cell counts. CD4
    Conclusions: Our results highlight the existence of a T cell defect that develops over time in ICF patient, in addition to the known B cell dysfunction. With intravenous immunoglobulin (IVIG) treatment ameliorating the B cell defect, the extent of CD4
    MeSH term(s) B-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; Centromere/genetics ; Child, Preschool ; Chromosomal Instability/genetics ; Chromosomal Instability/immunology ; DNA (Cytosine-5-)-Methyltransferases/genetics ; Face/abnormalities ; Female ; Humans ; Immunologic Deficiency Syndromes/genetics ; Immunologic Deficiency Syndromes/immunology ; Infant ; Male ; Mutation, Missense/genetics ; Phenotype ; DNA Methyltransferase 3B
    Chemical Substances DNA (Cytosine-5-)-Methyltransferases (EC 2.1.1.37)
    Language English
    Publishing date 2016-10-12
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 779361-3
    ISSN 1573-2592 ; 0271-9142
    ISSN (online) 1573-2592
    ISSN 0271-9142
    DOI 10.1007/s10875-016-0340-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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