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  • Title: Human granulocyte surface molecules identified by murine monoclonal antibodies.
    Author: Skubitz KM, Pessano S, Bottero L, Ferrero D, Rovera G, August JT.
    Journal: J Immunol; 1983 Oct; 131(4):1882-8. PubMed ID: 6619543.
    Abstract:
    We have investigated the nature of the antigens recognized by four classes of mouse anti-human monoclonal antibodies that characteristically reacted with neutrophilic granulocytes and their precursor cells, but not with monocytes or other normal hemopoietic cells. The antigenic targets of the majority (9/12) of the independently isolated monoclonal antibodies were present on two surface glycoproteins (Mr 145,000 and 105,000) and glycolipids. This antigen(s) was also detected on granulocyte precursor cells, including the bone marrow granulocyte/monocyte progenitor cells (CFU-GM). The same antigen(s) detected by these monoclonal antibodies was also present in non-hemopoietic cell lines (colon carcinoma and neuroblastoma). Three other antigens, defined by monoclonal antibodies AHN-8, L12.2, and L13.1 and present on granulocytes and their mid-late precursor cells, could not be identified as proteins but were detected in a protein-free glycolipid extract of these cells. The diversity of the antigens was confirmed by cross-competition experiments and by the identification of their different patterns of reactivity with cell lines and bone marrow cells.
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