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Synthetic resveratrol analogue, 3,3',4,4',5,5'-hexahydroxy-trans-stilbene, accelerates senescence in peritoneal mesothelium and promotes senescence-dependent growth of gastrointestinal cancers.

Abstract
3,3',4,4',5,5'-Hexahydroxy-trans-stilbene (M8) is a synthetic resveratrol derivative, advertised as a candidate drug highly effective against numerous malignancies. Because multiple tumors prone to M8 frequently metastasize into the peritoneal cavity, this study was aimed at establishing the effect of M8 on the growth and senescence of human peritoneal mesothelial cells (HPMCs), the largest cell population within the peritoneum, actively involved in the intraperitoneal spread of cancer. The study showed that M8, used at the highest non-toxic dose of 10 μM, impairs proliferation and accelerates senescence in cultured HPMCs via an oxidative stress-dependent mechanism. At the same time, soluble factors released to the environment by HPMCs that senesced prematurely in response to M8 promoted growth of colorectal and pancreatic carcinomas in vitro. These findings indicate that M8 may indirectly-through the modification of normal (mesothelial) cells phenotype-facilitate an expansion of cancer cells, which challenges the postulated value of this stilbene in chemotherapy.
AuthorsJustyna Mikuła-Pietrasik, Patrycja Sosińska, Marcin Wierzchowski, Katarzyna Piwocka, Krzysztof Książek
JournalInternational journal of molecular sciences (Int J Mol Sci) Vol. 14 Issue 11 Pg. 22483-98 ( 2013) ISSN: 1422-0067 [Electronic] Switzerland
PMID24240809 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • 3,3',4,4',5,5'-hexahydroxystilbene
  • Stilbenes
  • Pyrogallol
  • resveratrol
Topics
  • Carcinogenesis (drug effects)
  • Cell Aging (drug effects)
  • Cell Line, Tumor
  • Epithelium (drug effects, growth & development)
  • Gastrointestinal Neoplasms (drug therapy, pathology)
  • Humans
  • Oxidative Stress
  • Peritoneal Neoplasms (drug therapy, pathology)
  • Peritoneum (metabolism, pathology)
  • Pyrogallol (adverse effects, analogs & derivatives, chemical synthesis, pharmacology)
  • Stilbenes (adverse effects, chemical synthesis, chemistry, pharmacology)

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