نتایج جستجو برای: cll
تعداد نتایج: 5726 فیلتر نتایج به سال:
B-cell chronic lymphocytic leukemia (CLL) is the most common leukemia in adults. Lymph nodes (LNs) are sites of malignant proliferation and LN enlargement is associated with poor prognosis in the clinics. The LN microenvironment is believed to favor disease progression by promoting CLL cell growth and drug resistance. A better understanding of the mechanisms regulating trafficking of CLL cells ...
Chronic lymphocytic leukemia (CLL) is characterized by an accumulation of monoclonal B lymphocytes in the hematopoietic organs. Rarely, CLL cells accumulate in a single atypical site. The mechanism underlying this unusual distribution of CLL cells has not been studied previously. We obtained peripheral blood from five patients having early stage CLL with heavy prostate infiltration. These patie...
Molecular pathogenesis of Chronic Lymphocytic Leukemia (CLL) is not fully elucidated. Genome wide association studies have linked Interferon Regulatory Factor 4 (IRF4) to the development of CLL. We recently established a causal relationship between low levels of IRF4 and development of CLL. However, the molecular mechanism through which IRF4 suppresses CLL development remains unclear. Deregulat...
INCE TURKS’ initial identification of chronic lymphoS cytic leukemia (CLL), Minot and Isaacs” description of its clinical features in 1924, and Dameshek‘? hypothesis in 1967, considerable progress in the understanding of CLL has been achieved, especially during the last two decades. The purpose of the present work is to review the major advances in the biology and clinical research of CLL and t...
Chronic lymphocytic leukemia (CLL) B cells are hyporesponsive or refractory to mitogens and growth factors in vitro. This study examined whether transforming growth factor beta (TGF-beta), a potent inhibitor of lymphocyte proliferation may play a role in the growth regulation of CLL B cells. CLL B cells from all donors treated expressed detectable TGF-beta 1 mRNA. In vitro release of TGF-beta b...
Chronic lymphocytic leukemia (CLL) is characterized by an accumulation of monoclonal B lymphocytes in the hematopoietic organs. Rarely, CLL cells accumulate in a single atypical site. The mechanism underlying this unusual distribution of CLL cells has not been studied previously. We obtained peripheral blood from five patients having early stage CLL with heavy prostate infiltration. These patie...
Prior genome-wide association (GWA) studies have identified 10 susceptibility loci for risk of chronic lymphocytic leukemia (CLL). To identify additional loci, we performed a GWA study in 407 CLL cases (of which 102 had a family history of CLL) and 296 controls. Moreover, given the strong familial risk of CLL, we further subset our GWA analysis to the CLL cases with a family history of CLL to i...
CD200 is a transmembrane molecule with an important immunoregulatory role that is overexpressed on most chronic lymphocytic leukemia (CLL) cells. In this study, we characterized a previously unknown soluble form of this molecule in human plasma termed sCD200. Levels of sCD200 were elevated in the plasma of patients with CLL as compared with healthy controls, and there was a significant correlat...
Chronic lymphocytic leukemia (CLL) is the most common leukemia in the western world. The mechanism the mechanism of the disease development still remains unrevealed. In recent years new unique molecular and clinical features of CLL have emerged leading to a unified hypothesis of CLL origin. Major progress in understanding CLL biology was made after identification of mutational status of immunog...
Chronic lymphocytic leukemia of B-cell origin (B-CLL) is generally thought to arise by neoplastic transformation of B lymphocytes, which express CD5 and have features of an early stage of B-cell differentiation. To study isotype-switched B-CLL as a potentially more differentiated variant, we performed genetic and functional immunoglobulin (Ig) gene analysis in two cases of CD5+ B-CLL in which t...
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