PMID- 6339421 OWN - NLM STAT- MEDLINE DCOM- 19830505 LR - 20220408 IS - 0020-7136 (Print) IS - 0020-7136 (Linking) VI - 31 IP - 1 DP - 1983 Jan 15 TI - Production of a mouse monoclonal antibody reactive with a human nuclear antigen associated with cell proliferation. PG - 13-20 AB - The production of a mouse monoclonal antibody, Ki-67, is described. The Ki-67 antibody recognized a nuclear antigen present in proliferating cells, but absent in resting cells. Immunostainings with Ki-67 revealed nuclear reactivity in cells of germinal centres of cortical follicles, cortical thymocytes, neck cells of gastrointestinal mucosa, undifferentiated spermatogonia and cells of a number of human cell lines. The Ki-67 antibody did not react with cells known to be in a resting stage, such as lymphocytes, monocytes, parietal cells and Paneth's cells of gastrointestinal mucosa, hepatocytes, renal cells, mature sperm cells, brain cells, etc. Expression of the antigen recognized by Ki-67 could be induced in peripheral blood lymphocytes after stimulation with phytohaemagglutinin, whereas it disappeared from HL-60 cells stimulated with phorbol esters to differentiate into mature macrophages in a resting stage. These findings suggest that Ki-67 is directed against a nuclear antigen associated with cell proliferation. A first series of immunostainings of tumour biopsies indicated that Ki-67 may be a potent tool for easy and quick evaluation of the proportion of proliferating cells in a tumour. FAU - Gerdes, J AU - Gerdes J FAU - Schwab, U AU - Schwab U FAU - Lemke, H AU - Lemke H FAU - Stein, H AU - Stein H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Int J Cancer JT - International journal of cancer JID - 0042124 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antigens) RN - 0 (Antigens, Nuclear) RN - 0 (Nucleoproteins) RN - 0 (Phytohemagglutinins) SB - IM MH - Animals MH - Antibodies, Monoclonal/*immunology MH - Antibody Specificity MH - Antigens/*immunology MH - Antigens, Nuclear MH - *Cell Division MH - Female MH - Humans MH - Immunoenzyme Techniques MH - Lymphocyte Activation MH - Lymphocytes/immunology MH - Mice MH - Mice, Inbred BALB C MH - Monocytes/immunology MH - Nucleoproteins/*immunology MH - Palatine Tonsil/immunology MH - Phytohemagglutinins/pharmacology MH - Thymus Gland/immunology EDAT- 1983/01/15 00:00 MHDA- 1983/01/15 00:01 CRDT- 1983/01/15 00:00 PHST- 1983/01/15 00:00 [pubmed] PHST- 1983/01/15 00:01 [medline] PHST- 1983/01/15 00:00 [entrez] AID - 10.1002/ijc.2910310104 [doi] PST - ppublish SO - Int J Cancer. 1983 Jan 15;31(1):13-20. doi: 10.1002/ijc.2910310104.