Effect of epidermal growth factor on clonogenic growth of primary human tumor cells

M. A. Pathak, L. M. Matrisian, B. E. Magun, S. E. Salmon

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The effect of EGF on the soft agar colony-forming ability of fresh human tumor cells was assessed in 40 specimens obtained from various types of carcinoma including those of the breast, endometrium, ovary, and other sites. Cells from 4 established human tumor cell lines (3 breast and 1 endometrial) were also included in this study. The results showed that addition of EGF at a concentration of 50 ng/ml resulted in a 50% higher cloning efficiency in soft agar in 40% of the samples of fresh human tumors. When cells from tumor cell lines were plated in semi-solid medium containing EGF, the number of colonies formed was at least twice as high as controls. Cells from fresh tumor biopsies were assayed for EGF receptors to determine whether the correlation between the proliferative response in EGF-supplemented semi-solid medium as compared to control could be related to the number of EGF receptors present on the cells. Specific receptors for EGF were detected by using radioiodinated EGF in early-passage cell cultures from some of the tumors tested for clonogenicity. The number of receptors ranged from 0.3 to 3.27 x 105 per cell. Cells from 2 melanoma specimens possessed less than 0.3 x 103 EGF receptors per cell. We found no correlation between the number of EGF receptors on a cell surface and the mitogenic effect of EGF on the same tumor cells grown in semi-solid medium.

Original languageEnglish (US)
Pages (from-to)745-750
Number of pages6
JournalInternational Journal of Cancer
Volume30
Issue number6
StatePublished - 1982
Externally publishedYes

Fingerprint

Epidermal Growth Factor
Growth
Neoplasms
Tumor Cell Line
Agar
Breast
Endometrium
Organism Cloning
Ovary
Melanoma
Cell Culture Techniques
ErbB Receptors
Carcinoma
Biopsy

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Pathak, M. A., Matrisian, L. M., Magun, B. E., & Salmon, S. E. (1982). Effect of epidermal growth factor on clonogenic growth of primary human tumor cells. International Journal of Cancer, 30(6), 745-750.

Effect of epidermal growth factor on clonogenic growth of primary human tumor cells. / Pathak, M. A.; Matrisian, L. M.; Magun, B. E.; Salmon, S. E.

In: International Journal of Cancer, Vol. 30, No. 6, 1982, p. 745-750.

Research output: Contribution to journalArticle

Pathak, MA, Matrisian, LM, Magun, BE & Salmon, SE 1982, 'Effect of epidermal growth factor on clonogenic growth of primary human tumor cells', International Journal of Cancer, vol. 30, no. 6, pp. 745-750.
Pathak, M. A. ; Matrisian, L. M. ; Magun, B. E. ; Salmon, S. E. / Effect of epidermal growth factor on clonogenic growth of primary human tumor cells. In: International Journal of Cancer. 1982 ; Vol. 30, No. 6. pp. 745-750.
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