Impairment in cellular protein phosphorylation by mitogen activated lymphocytes from patients with Hodgkin's disease. 1992

R N Damle, and S G Gangal, and S H Advani
Immunology Division, Cancer Research Institute, Tata Memorial Centre, Bombay.

T cell activation process in patients of Hodgkin's disease was studied in terms of cellular protein phosphorylation following interaction of T lymphocytes with mitogen PHA. Peripheral blood lymphocytes from Hodgkin's disease patients and healthy donors, labelled with [32P] were activated with PHA. The cell lysates were subjected to SDS-PAGE, 2-dimensional gel analysis and were autoradiographed. It was observed that lymphocytes from both Hodgkin's disease patients and healthy donors followed similar time kinetics of phosphorylation. Nine of the eleven major protein bands, resolved on SDS-PAGE in the molecular weight range of 15.7-98 kD showed reduced phosphorylation (ratios of densitometric readings taken after and before stimulation) compared to that of healthy donors. Isoelectric focusing of these major protein bands in 2-dimensional gels further resolved them into about 27 proteins. Most of these showed increased phosphorylation in lysates of activated lymphocytes from healthy donors compared to that of Hodgkin's disease patients. The results showed a defect even at an early stage in terms of inadequate cellular protein phosphorylation.

UI MeSH Term Description Entries
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D010835 Phytohemagglutinins Mucoproteins isolated from the kidney bean (Phaseolus vulgaris); some of them are mitogenic to lymphocytes, others agglutinate all or certain types of erythrocytes or lymphocytes. They are used mainly in the study of immune mechanisms and in cell culture. Kidney Bean Lectin,Kidney Bean Lectins,Lectins, Kidney Bean,Phaseolus vulgaris Lectin,Phaseolus vulgaris Lectins,Phytohemagglutinin,Hemagglutinins, Plant,Lectin, Kidney Bean,Lectin, Phaseolus vulgaris,Lectins, Phaseolus vulgaris,Plant Hemagglutinins
D011506 Proteins Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein. Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D006689 Hodgkin Disease A malignant disease characterized by progressive enlargement of the lymph nodes, spleen, and general lymphoid tissue. In the classical variant, giant usually multinucleate Hodgkin's and REED-STERNBERG CELLS are present; in the nodular lymphocyte predominant variant, lymphocytic and histiocytic cells are seen. Granuloma, Hodgkin,Granuloma, Malignant,Hodgkin Lymphoma,Lymphogranuloma, Malignant,Granuloma, Hodgkin's,Granuloma, Hodgkins,Hodgkin Lymphoma, Adult,Hodgkin's Disease,Hodgkin's Lymphoma,Hodgkins Disease,Lymphocyte Depletion Hodgkin's Lymphoma,Lymphocyte-Rich Classical Hodgkin's Lymphoma,Mixed Cellularity Hodgkin's Lymphoma,Nodular Lymphocyte-Predominant Hodgkin's Lymphoma,Nodular Sclerosing Hodgkin's Lymphoma,Adult Hodgkin Lymphoma,Disease, Hodgkin,Disease, Hodgkin's,Disease, Hodgkins,Hodgkin Granuloma,Hodgkin's Granuloma,Hodgkins Granuloma,Hodgkins Lymphoma,Lymphocyte Rich Classical Hodgkin's Lymphoma,Lymphogranulomas, Malignant,Lymphoma, Hodgkin,Lymphoma, Hodgkin's,Malignant Granuloma,Malignant Granulomas,Malignant Lymphogranuloma,Malignant Lymphogranulomas,Nodular Lymphocyte Predominant Hodgkin's Lymphoma
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013601 T-Lymphocytes Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen. T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte

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