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HPLC-based Assay to Monitor Extracellular Nucleotide/Nucleoside Metabolism in Human Chronic Lymphocytic Leukemia Cells
Published on: July 20, 2016
Lymphopenia as a prognostic factor in patients with peripheral T-cell lymphoma, unspecified
Jorge J Castillo1, Domingo Morales, Pilar Quinones
1The Warren Alpert Medical School of Brown University, Division of Hematology and Oncology, The Miriam Hospital, Providence, RI, USA. jcastillo@lifespan.org
Abstract:
Peripheral T-cell lymphoma, unspecified (PTCLU) is the most common T-cell lymphoma variant. The molecular heterogeneity of PTCLU is reflected by a diverse clinical course. Several prognostic factors have been studied, but further refinement is needed. The aim of our study was to retrospectively evaluate the presence of lymphopenia, defined as a lymphocyte count of<1000 cells/mm³, as a prognostic factor for survival in patients with PTCLU. Sixty-nine cases with a pathological diagnosis of PTCLU were included in our analysis. Lymphopenia was seen in 38% of the patients and was statistically associated with a worse response to chemotherapy. In univariate analysis, lymphopenia, IPI score>2, and Prognostic Index for PTCLU (PIT) score>2 were associated with a worse overall survival. In multivariate analysis, lymphopenia and a PIT score>2 were the only independent poor prognostic factors, implying an important role of the patient's immune system in both response to therapy and survival.
