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  • Title: Quantitative analysis of tissue distribution of Ly10-like murine alloantigen(s) with antisera and monoclonal antibodies.
    Author: Kuśnierczyk P, Wysocka M, Szkudlarek J, Steuden I, Szymaniec S, Kisielow P.
    Journal: Arch Immunol Ther Exp (Warsz); 1986; 34(4):409-19. PubMed ID: 3800600.
    Abstract:
    Tissue distribution of non-Lyt1.1 ("Ly10-like") antigen or antigens encoded by short chromosomal segment differentiating B6-Ly-1a congenic strain from B6 strain of mice was studied by quantitative absorption of (BALB/c X B6)F1 anti B6-Ly-1a antiserum and by direct cytotoxicity of Ly-10-132-12-26 monoclonal antibody on lymphoid cell populations. Identical strain but not tissue distribution pattern does not allow to conclude whether antiserum and monoclonal antibody detect the same or closely linked antigens. Absorption experiments revealed the highest antigen content in the brain tissue, lower in testis and kidney, still lower in lymphoid organs and the lowest in liver and lung. Among lymphoid cells, bone marrow cells had highest absorbing capacity, followed by thymus, spleen and lymph nodes. Monoclonal antibody lysed almost 100% of thymocytes, 30% bone marrow cells and 10-20% of spleen and lymph node cells (both T-cell and B-cell enriched populations contained the same proportion of positive cells). Cortisone resistant thymocytes showed the same sensitivity as cortical thymocytes to Ly-10-132-12-26 antibody which is distinguishable characteristics of medullary thymocytes from peripheral T cells. Mitogen activated lymphocytes exhibited significantly higher expression of Ly10-like antigen than resting peripheral lymphocytes.
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