Expression of CD164 on Malignant T Cells in Sézary Syndrome.

Expression of CD164 on Malignant T Cells in Sézary Syndrome. Acta Derm Venereol. 2015 Nov 2; Authors: Guenova E, Ignatova D, Chang YT, Contassot E, Mehra T, Saulite I, Navarini AA, Mitev V, Dummer R, Kazakov DV, French LE, Hötzenecker W, Cozzio A Abstract Sézary syndrome is a primary cutaneous T cell lymphoma characterized by pruritic erythroderma, peripheral lymphadenopathy and the presence of malignant T cells in the blood. Unequivocal detection of malignant cells in patients with Sézary syndrome is of important diagnostic, prognostic and therapeutic value. However, no single Sézary syndrome specific cell surface marker has been identified. In a cohort of patients with Sézary syndrome, CD164 expression on total CD4+ lymphocytes was significantly upregulated compared with healthy controls. CD164 expression was in most cases limited to CD4+CD26- malignant T lymphocytes, unequivocally identified using flow-cytometry by the expression of a specific Vβ clone for each patient. Increased expression of CD164 may be a promising diagnostic parameter and a potential target for a CD164-linked therapeutic approach in Sézary syndrome. PMID: 26524186 [PubMed - as supplied by publisher]
Source: Acta Dermato-Venereologica - Category: Dermatology Authors: Tags: Acta Derm Venereol Source Type: research

Related Links:

Condition:   CTCL Intervention:   Drug: ABT-199 (venetoclax) Sponsor:   Yale University Not yet recruiting
Source: - Category: Research Source Type: clinical trials
Contributors : Maria Wysocka ; Andrew V Kossenkov ; Bernice M Benoit ; Elisha Singer ; Andras Schaffer ; Tzvete Dentchev ; Satoshi Nagata ; Tomoko Ise ; Louise C Showe ; Alain H RookSeries Type : Expression profiling by arrayOrganism : Homo sapiensSezary syndrome (SS) represents a leukemic variant of cutaneous T cell lymphoma (CTCL) with circulating malignant CD4 T cells trafficking to the skin. The cell surface molecules present on malignant cells are also expressed on normal CD4 T cells. Therefore, we attempted to find a specific marker for malignant cells that would distinguish them from normal cells. Comprehensive micr...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Homo sapiens Source Type: research
This article provides practical guidelines for the design and implementation of a phototherapy protocol for early stage MF, including an overview of treatment phases, response criteria, and considerations in the selection of a light source. Several evolving topics in phototherapy research are also discussed, including the relative efficacy of PUVA versus NBUVB, the role of maintenance therapy, risk of photocarcinogenicity, and combination therapies.
Source: Dermatologic Clinics - Category: Dermatology Authors: Source Type: research
Phototherapeutic modalities induce apoptosis of keratinocytes and immune cells, impact cytokine production, downregulate the IL-23/Th17 axis, and induce regulatory T cells. As in anti-IL-17 or anti-IL-23 antibody treatment, the dual action of phototherapy on skin and the immune system is likely responsible for sustained resolution of lesions in diseases such as psoriasis. In cutaneous T cell lymphoma, phototherapy may function by causing tumor cell apoptosis and eliminating the neoplastic and inflammatory infiltrate. Further research on phototherapeutic mechanisms will help advance, optimize, and refine dermatologic treatm...
Source: Dermatologic Clinics - Category: Dermatology Authors: Source Type: research
Abstract Mycosis fungoides and Sézary syndrome belong to the group of primary cutaneous T-cell lymphomas. Because of the inflammatory appearance of the skin lesions, we hypothesized that antimicrobial peptides might be dysregulated in these conditions, similar to in inflammatory skin conditions. Samples from 20 patients with cutaneous T-cell lymphoma were analysed using immunohistochemistry and enzyme-linked immunoassay (ELISA) of skin washing fluids of hBD-2, hBD-3, RNase 7 and psoriasin. Immunohistochemistry results were compared with previous analyses of healthy and psoriatic skin. ELISA and immunohistoc...
Source: Acta Dermato-Venereologica - Category: Dermatology Authors: Tags: Acta Derm Venereol Source Type: research
Abstract IL-2R pathway is a key regulator in the development of immune cells and has emerged as a promising drug target in cancer treatment, but there is a scarcity of related inhibitors. TPD7 is a novel biphenyl urea taspine derivate, which has been shown anti-cancer effect. Here, we demonstrated the anti-cancer activity of TPD7 in cutaneous T cell lymphoma and investigated the underlying mechanism of TPD7 through IL-2R signalling. The inhibitory effect of TPD7 on cell viability exhibited a strong correlation with the expression level of IL-2R, and cutaneous T cell lymphoma H9 and HUT78 cells were most sensitive ...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
This article discusses the role of radiation in the treatment of cutaneous squamous cell carcinoma, basal cell carcinoma, Merkel cell carcinoma, cutaneous T-cell lymphoma, and B-cell lymphomas.
Source: Hematology/Oncology Clinics of North America - Category: Cancer & Oncology Authors: Source Type: research
Despite development of several new treatments in recent years, almost all CTCL patients fail to achieve complete remission or relapse. Majority of the patients with advanced disease do not have a prolonged survival [1]. Regardless of survival, an indolent chronic disease with visible cutaneous involvement for many years, adversely and significantly affects the patients ’ quality of life [2].
Source: Biology of Blood and Marrow Transplantation - Category: Hematology Authors: Source Type: research
Leukemia, Published online: 11 November 2019; doi:10.1038/s41375-019-0622-6Thrombospondin-1 promotes tumor progression in cutaneous T-cell lymphoma via CD47
Source: Leukemia - Category: Hematology Authors: Source Type: research
In conclusion, cdTSE has a limited role in SS. TTNT is reduced in heavily pre-treated MF patients, suggesting greater benefit when utilized earlier in treatment sequencing.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
More News: Cancer & Oncology | Cutaneous T cell lymphoma | Dermatology | Lymphoma | T-cell Lymphoma