期刊
YEAR IN HUMAN AND MEDICAL GENETICS: INBORN ERRORS OF IMMUNITY II
卷 1246, 期 -, 页码 50-63出版社
BLACKWELL SCIENCE PUBL
DOI: 10.1111/j.1749-6632.2011.06322.x
关键词
primary immunodeficiency; cancer; DNA repair; V(D)J recombination; class switch recombination; genomic instability
The adaptive component of the immune system depends greatly on the generation of genetic diversity provided by lymphocyte-specific genomic rearrangements. V(D)J recombination, class switch recombination (CSR), and somatic hypermutation (SHM) constitute complex and vulnerable processes that are orchestrated by a multitude of DNA repair pathways. When inherited defects in certain DNA repair proteins are present, lymphocyte development can be compromised and, consequently, patients can develop primary immunodeficiencies (PIDs). PID patients often have a strong predisposition for cancer development as a result of genomic instability generated from defective DNA repair mechanisms. Tumors of lymphoid origin are one of the most common PID-associated cancers, likely due to DNA lesions resulting from defective V(D)J, CSR, and SHM. In this review, we describe PID syndromes that confer an increased risk for cancer development. Furthermore, we discuss the role of the affected proteins in tumorigenesis/lymphomagenesis.
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