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Research Article Free access | 10.1172/JCI109153

Promotion of human adipocyte precursor replication by 17beta-estradiol in culture.

D A Roncari and R L Van

Find articles by Roncari, D. in: PubMed | Google Scholar

Find articles by Van, R. in: PubMed | Google Scholar

Published September 1, 1978 - More info

Published in Volume 62, Issue 3 on September 1, 1978
J Clin Invest. 1978;62(3):503–508. https://doi.org/10.1172/JCI109153.
© 1978 The American Society for Clinical Investigation
Published September 1, 1978 - Version history
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Abstract

The influence of 17beta-estradiol and 17alpha-estradiol on adult human omental adipocyte precursors grown in a propagating culture system was studied. Cells were grown in subculture in the presence or absence of hormone. 17beta-estradiol resulted in significant promotion of adipocyte precursor replication, as determined by cell counting and incorporation of radioactive thymidine into DNA. The hormone stimulated cell multiplication in the concentration range 0.5--500 ng/ml growth medium. The highest level tested was 500 ng/ml. The maximal effects were obtained at 50 ng/ml (P less than 0.001 by paired t test, 48 h after hormone addition). All 10 cell strains (five were derived from men and five from women) that were tested responded similarly to the hormone. 17beta-estradiol did not affect cell size. 17alpha-estradiol did not promote the replication of adipocyte precursors, nor did it influence cell size. Thus, 17beta-estradiol, which is the active isomer in known target tissues, stimulates the multiplication of human adipocyte precursors in culture.

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