4F2 monoclonal antibody recognizes a surface antigen on spread human fibroblasts of embryonic but not of adult origin

B. Azzarone, H. Suarez, M. C. Mingari, L. Moretta, A. S. Fauci

Research output: Contribution to journalArticle


The 4F2 monoclonal antibody (mAb) has been shown to recognize a 120-kilodalton glycoprotein expressed on the cell surface of human peripheral blood monocytes, activated (but not resting) T or B cells, and T and B lymphoblastoid cell lines. In this report we show that 4F2 mAb specifically binds to the surface of adherent human embryonic fibroblasts but fails to bind to normal adult fibroblasts. Moreover, 4F2 antigen was expressed on sarcoma-derived or SV40-transformed adult fibroblastic cells. Finally, addition of 4F2 mAb inhibited the growth of cultured HT-1080 fibrosarcoma cell line, but had no inhibitory effect on various embryonic and adult normal or transformed fibroblasts.

Original languageEnglish
Pages (from-to)1133-1137
Number of pages5
JournalJournal of Cell Biology
Issue number3
Publication statusPublished - 1984


ASJC Scopus subject areas

  • Cell Biology

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