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. 2009 Apr 8;276(1):68-73.
doi: 10.1016/j.canlet.2008.10.050. Epub 2008 Dec 19.

The inhibitory effect of diarylpropionitrile, a selective agonist of estrogen receptor beta, on the growth of MC38 colon cancer line

Ewelina Motylewska  1 , Olga Stasikowska, Gabriela Mełeń-Mucha
Affiliations

The inhibitory effect of diarylpropionitrile, a selective agonist of estrogen receptor beta, on the growth of MC38 colon cancer line

Ewelina Motylewska et al. Cancer Lett. .

Abstract

The protective role of estrogens in the colon carcinogenesis has been suggested for many years and attributed mainly to estrogen receptor beta (ERbeta). However, the direct effect of estrogens and their action through ERbeta on the growth of colon cancer have been rarely studied. The aim of this study was to examine the effect of various concentrations (10(-4)-10(-12)M) of diarylpropionitrile (DPN)--a selective agonist of ERbeta--on the growth of murine MC38 colon cancer line. Moreover, the aim of this paper was the immunohistochemical assessment of estrogen and progesterone receptor expression in human colon tissues and in MC38 cells (only ERbeta). We found that DPN induced a growth inhibition of MC38 cancer (50-94% of control group) at the highest (10(-4)M) and two lowest concentrations (10(-11) and 10(-12)M). Furthermore, we detected a nuclear-cytoplasmic expression of ERbeta in human normal and neoplastic colon tissues and in the studied MC38 cancer cells. The inhibitory effect of DPN on the growth of MC38 colon cancer line suggests a possibility of using a selective estrogen receptor agonist in the treatment of colon cancer.

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