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Heterogenous response of B cell chronic lymphocytic leukaemia (B-CLL) cells to anti-human IgM antibody (anti-mu) and B cell stimulatory factor 1 (BSF-1). 1989

M Kawano, and K Iwato, and H Asaoku, and O Tanabe, and H Tanaka, and H Ishikawa, and N Imamura, and A Kuramoto
Department of Internal Medicine, Hiroshima University, Japan.

B cell chronic lymphocytic leukaemia (B-CLL) cells from seven patients were examined for 3H-TdR uptake with anti-human IgM antibody (anti-mu) and B cell stimulatory factor 1 (BSF-1)/IL-4. B-CLL cells from one patient could proliferate with anti-mu plus BSF-1, but not with BSF-1 alone. B-CLL cells from two patients responded to BSF-1 alone; one could proliferate more by adding anti-mu, but the proliferation of the other cells was inhibited by adding anti-mu. On the other hand, B-CLL cells from the other four patients responded neither to anti-mu nor to anti-mu plus BSF-1. Surface densities of membrane IgM of B-CLL cells were also analysed by fluorescence activated cell sorter (FACS), but there was no correlation between proliferative response (DNA synthesis) of B-CLL cells to anti-mu and densities of surface membrane IgM. These results show that there is a functional heterogeneity of B-CLL cells with regard to proliferative response to anti-mu and BSF-1.

UI MeSH Term Description Entries
D007075 Immunoglobulin M A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin. Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D007148 Immunoglobulin mu-Chains The class of heavy chains found in IMMUNOGLOBULIN M. They have a molecular weight of approximately 72 kDa and they contain about 57 amino acid residues arranged in five domains and have more oligosaccharide branches and a higher carbohydrate content than the heavy chains of IMMUNOGLOBULIN G. Ig mu Chains,Immunoglobulins, mu-Chain,Immunoglobulin mu-Chain,mu Immunoglobulin Heavy Chain,mu Immunoglobulin Heavy Chains,mu-Chain Immunoglobulins,Chains, Ig mu,Immunoglobulin mu Chain,Immunoglobulin mu Chains,Immunoglobulins, mu Chain,mu Chain Immunoglobulins,mu Chains, Ig,mu-Chain, Immunoglobulin,mu-Chains, Immunoglobulin
D007378 Interleukins Soluble factors which stimulate growth-related activities of leukocytes as well as other cell types. They enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli. Interleukin
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
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D001402 B-Lymphocytes Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation. B-Cells, Lymphocyte,B-Lymphocyte,Bursa-Dependent Lymphocytes,B Cells, Lymphocyte,B Lymphocyte,B Lymphocytes,B-Cell, Lymphocyte,Bursa Dependent Lymphocytes,Bursa-Dependent Lymphocyte,Lymphocyte B-Cell,Lymphocyte B-Cells,Lymphocyte, Bursa-Dependent,Lymphocytes, Bursa-Dependent

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