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  • Title: Characterization of immunoglobulin λ light chain variable region (IGLV) gene and its relationship with clinical features in patients with POEMS syndrome.
    Author: Li J, Huang Z, Duan MH, Zhang W, Chen M, Cao XX, Guan HZ, Tian Z, Zhou DB.
    Journal: Ann Hematol; 2012 Aug; 91(8):1251-5. PubMed ID: 22453306.
    Abstract:
    The M protein of POEMS syndrome is essentially λ light chain restricted. Several studies have demonstrated the restrict usage of immunoglobulin λ light chain variable region (IGLV) genes in patients with POEMS syndrome. However, these studies only included a limited number of cases, and it is not clear whether the clinical features are influenced by the IGLV gene in POEMS syndrome. Here we demonstrated that the clonal IGLV genes were strictly derived from IGLV 1-40 (11 patients, 36.7 %) and IGLV 1-44 (19, 63.3 %) gene in 30 patients with POEMS syndrome. We further evaluated the relationship between clinical features and IGLV genes. Our study showed that patients with IGLV 1-44 were older than those with IGLV 1-40, and patients with IGLV 1-40 had more severe neuropathy, hypertrichosis, and papilledema. It was suggested that the IGLV gene influenced clinical characteristics in POEMS syndrome.
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