Cell Surface Proteins and Glycoproteins From Biologically Different Human Colon Carcinoma Cell Lines

Michael E. Marks, Bernice H. Danbury, Michael G. Brattain, Charles A. Miller

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Six cultured human colon cancer cell lines possessing different biological characteristics were enzymatically radiolabeled in situ with 125I and 3H, and the labeled cell surface proteins and glycoproteins were compared. The electrophoretic patterns of labeled cell surface material suggest correlations between biological properties and cell surface proteins. Highly aggressive cell lines (as assessed by in vitro parameters) had predominant peaks of 125I-labeled proteins between molecular weights 66,000 and 92,500. The major peak of radioiodinated material from the more indolent cell lines occurred between molecular weights 31,000 and 45,000. The profile of one 125I-labeled intermediately aggressive cell line was similar to the profiles of the more aggressive lines, whereas another intermediate line exhibited a profile different from those of both indolent and aggressive lines. Electrophoresis of tritiated material indicated that essentially all of the recovered labeled glycoprotein was of relatively high molecular weight (92,000-180,000) in the indolent lines, whereas the intermediate and highly aggressive lines had patterns with significant peaks between molecular weights 45,000 and 92,500.

Original languageEnglish (US)
Pages (from-to)663-671
Number of pages9
JournalJournal of the National Cancer Institute
Volume71
Issue number4
DOIs
StatePublished - Oct 1983

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Membrane Glycoproteins
Membrane Proteins
Colon
Molecular Weight
Carcinoma
Cell Line
Colonic Neoplasms
Electrophoresis
Glycoproteins
Proteins

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Cell Surface Proteins and Glycoproteins From Biologically Different Human Colon Carcinoma Cell Lines. / Marks, Michael E.; Danbury, Bernice H.; Brattain, Michael G.; Miller, Charles A.

In: Journal of the National Cancer Institute, Vol. 71, No. 4, 10.1983, p. 663-671.

Research output: Contribution to journalArticle

Marks, Michael E. ; Danbury, Bernice H. ; Brattain, Michael G. ; Miller, Charles A. / Cell Surface Proteins and Glycoproteins From Biologically Different Human Colon Carcinoma Cell Lines. In: Journal of the National Cancer Institute. 1983 ; Vol. 71, No. 4. pp. 663-671.
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