Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line

Alan E. Levine, L. J. McRae, David A. Hamilton, Diane E. Brattain, Lynn C. Yeoman, Michael G. Brattain

Research output: Contribution to journalArticle

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Abstract

A line of human colon carcinoma cells, designated MOSER, was established which synthesized tumor-inhibitory factor (TIF) and transforming growth factor (TGF) activity. Both activities were found in serum-free conditioned medium and in cell extracts. The activities coelute on Bio-Gel P-10 in acetic acid, but can be completely separated by reverse-phase high-pressure liquid chromatography. The TIF and TGF activities were acid and heat stable and were sensitive to trypsin and dithiothreitol. MOSER cell TIF prevented the anchorage-independent growth of the more differentiated colon carcinoma cell lines tested but did not affect the less differentiated lines. Using anchorage-dependent growth conditions, the effect of TIF appeared to be noncytotoxic and partially reversible. Purified TGF stimulated the growth of normal rat kidney fibroblasts and the slow-growing CBS colon carcinoma cell line but did not stimulate MOSER cell growth. MOSER cells contain both positive (TGF) and negative (TIF) factors with relative concentrations that may be important parameters in the regulation of cell growth.

Original languageEnglish (US)
Pages (from-to)2248-2254
Number of pages7
JournalCancer Research
Volume45
Issue number5
StatePublished - May 1 1985

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Transforming Growth Factors
Colon
Carcinoma
Cell Line
Growth
Neoplasms
Dithiothreitol
Serum-Free Culture Media
Reverse-Phase Chromatography
Conditioned Culture Medium
Cell Extracts
Acetic Acid
Trypsin
Fibroblasts
Hot Temperature
Gels
High Pressure Liquid Chromatography
growth inhibitory factor
Kidney
Acids

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Levine, A. E., McRae, L. J., Hamilton, D. A., Brattain, D. E., Yeoman, L. C., & Brattain, M. G. (1985). Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line. Cancer Research, 45(5), 2248-2254.

Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line. / Levine, Alan E.; McRae, L. J.; Hamilton, David A.; Brattain, Diane E.; Yeoman, Lynn C.; Brattain, Michael G.

In: Cancer Research, Vol. 45, No. 5, 01.05.1985, p. 2248-2254.

Research output: Contribution to journalArticle

Levine, AE, McRae, LJ, Hamilton, DA, Brattain, DE, Yeoman, LC & Brattain, MG 1985, 'Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line', Cancer Research, vol. 45, no. 5, pp. 2248-2254.
Levine AE, McRae LJ, Hamilton DA, Brattain DE, Yeoman LC, Brattain MG. Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line. Cancer Research. 1985 May 1;45(5):2248-2254.
Levine, Alan E. ; McRae, L. J. ; Hamilton, David A. ; Brattain, Diane E. ; Yeoman, Lynn C. ; Brattain, Michael G. / Identification of Endogenous Inhibitory Growth Factors from a Human Colon Carcinoma Cell Line. In: Cancer Research. 1985 ; Vol. 45, No. 5. pp. 2248-2254.
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