Tissue culture conditions determine the effects of estrogen and growth factors on the anchorage independent growth of human breast cancer cell lines

Gerhard Zugmaier, Cornelius Knabbe, Christina Fritsch, Susan Simpson, Bruce Ennis, Marc E Lippman, Robert B. Dickson

Research output: Contribution to journalArticle

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Abstract

We determined the effect of epidermal growth factor, insulin-like-growth-factor-1 and estradiol on the anchorage independent growth of the estrogen receptor positive human breast cancer cell lines MCF7 and T-47D. In serum free conditions growth factors but not estrogen induced a dose dependent stimulation of growth in both cell lines. The ability of estrogen to induce colony formation of early passage MCF7 cells (<100) was strictly correlated to the concentration of sulfatase and charcoal treated calf serum (CCS) with a maximal effect at a concentration of 5% CSS and 10 nM estradiol. CCS alone had no stimulatory effect on the anchorage independent growth of early passage MCF7 cells, but increased colony formation in late passage (> 1000) MCF7 and T-47D cells. The growth of late passage MCF7 cells was inhibited by antiestrogen. Thus, the presence of serum components is necessary for the effect of estrogen but not for the effects of growth factors on the anchorage independent growth of estrogen receptor positive human breast cancer cell lines; after a prolonged period of tissue culture serum components switch their function from indirectly modulating estrogen effects to directly stimulating growth in the absence of estrogen.

Original languageEnglish
Pages (from-to)681-685
Number of pages5
JournalJournal of Steroid Biochemistry and Molecular Biology
Volume39
Issue number5 PART 1
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

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Tissue culture
Intercellular Signaling Peptides and Proteins
Estrogens
Cells
Breast Neoplasms
Cell Line
Growth
MCF-7 Cells
Estrogen Receptors
Serum
Estrogen Receptor Modulators
Somatomedins
Epidermal Growth Factor
Estradiol
Switches

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology

Cite this

Tissue culture conditions determine the effects of estrogen and growth factors on the anchorage independent growth of human breast cancer cell lines. / Zugmaier, Gerhard; Knabbe, Cornelius; Fritsch, Christina; Simpson, Susan; Ennis, Bruce; Lippman, Marc E; Dickson, Robert B.

In: Journal of Steroid Biochemistry and Molecular Biology, Vol. 39, No. 5 PART 1, 01.01.1991, p. 681-685.

Research output: Contribution to journalArticle

Zugmaier, Gerhard ; Knabbe, Cornelius ; Fritsch, Christina ; Simpson, Susan ; Ennis, Bruce ; Lippman, Marc E ; Dickson, Robert B. / Tissue culture conditions determine the effects of estrogen and growth factors on the anchorage independent growth of human breast cancer cell lines. In: Journal of Steroid Biochemistry and Molecular Biology. 1991 ; Vol. 39, No. 5 PART 1. pp. 681-685.
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