Peripheral T-cell Lymphomas
نویسندگان
چکیده
منابع مشابه
Peripheral T-cell lymphomas.
The development of T cells from stem (progenitor) cells to effector cells results from a two-wave process of proliferation and differentiation. The cells of the first differentiation wave are the precursor T cells, and those of the second differentiation wave are peripheral T cells. In the first differentiation wave, resting/circulating naive antigen-reactive T lymphocytes are produced which di...
متن کاملImmunophenotyping of Nodal Peripheral T-cell Lymphomas and its Association with Epstein-Barr Virus
Background: Immunophenotyping in the rare group of nodal Peripheral T-cell Lymphomas (PTCL) exposes interesting features such as T-cell marker downregulation and paradoxically, the presence of reactive, clustered large-sized CD20 positive B-cells (B-cell proliferation). Epstein-Barr virus (EBV) has been suggested as a putative etiology in pathogenesis of B-cell lymphoma. We aimed to review the ...
متن کاملPathobiology of peripheral T-cell lymphomas.
Peripheral T-cell lymphomas (PTLs) are uncommon, accounting for fewer than 10% of all non-Hodgkin lymphomas. Success in therapy of the PTLs has lagged behind that of aggressive B-cell lymphomas, and most PTLs have a poor prognosis. The molecular pathogenesis of most PTLs is also poorly understood. In the WHO classification, clinical features, in conjunction with morphological and immunophenotyp...
متن کاملPeripheral t-cell lymphomas: progress and challenges
Peripheral T-cell lymphomas (PTCLs) represent a complex group of diseases that remain a management challenge today. Although CHOP (cyclophosphamide, doxorubicin, vincristine and prednisone) is considered the standard therapy, outcomes are disappointing and relapses are frequent. Therapeutic progress has lagged behind that for the more common and aggressive B-cell lymphomas. With disease rarity,...
متن کاملPeripheral T-cell lymphomas: an historical perspective.
Peripheral T-cell lymphomas (PTCL) remain largely unexplored due to disease rarity and biological heterogeneity as well as relatively recent recognition in modern classification systems. Before 1970, classifications of non-Hodgkin’s lymphomas (NHL) were based on morphology. The discovery of distinct T-, Band natural killer (NK)–cell lineages led to two immunologically based classification syste...
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ژورنال
عنوان ژورنال: Egyptian Journal of Hematology and Bone Marrow Transplantation
سال: 2016
ISSN: 2356-9735
DOI: 10.21608/ejhbmt.2016.19700