Combined therapy with disintegrin and melphalan as a new strategy in inhibition of endometrial cancer cell line (Ishikawa) growth.

Endometrial cancer is one of the most frequently diagnosed cancer in females with prevalence of 22 in 100,000 women. The etiology of the cancer remains unclear. Despite significant progress towards understanding the patho-mechanism of the disease, effective treatment is still lacking. The results of the study suggest that combined treatment of Ishikawa cells for 24 h with disintegrin and then for 24 h with melphalan severely inhibits important biological functions of the cells. We showed that such strategy have a potent cytotoxic effect. The mechanism of process undergoes probably through inhibition of integrin - dependent signaling. In this study we shown down regulation of Shc and FAK proteins in cells treated with echistatin and melphalan. It suggests that signaling pathways that involve Shc and FAK participation may represent target for antineoplastic strategy. The functional significance of the combined treatment of Ishikwa cells with echistatin and melphalan was found at the level of collagen biosynthesis. Decreased biosynthesis of collagen in extracellular matrix may suppress cell growth and induce apoptosis. The treatment with echistatin and melphalan also showed decreased expression of IGF receptor in comparison to the cells treated with both compounds separately. The data presented suggest that combined therapy with disintegrin - echistatin and alkyalting drug - mephalan may represent a new approach to more effective and safe cancer therapy.
AuthorsWojciech Miltyk, Arkadiusz Surazyński, Wołczyński Sławomir, Jerzy A Pałka
JournalFolia histochemica et cytobiologica / Polish Academy of Sciences, Polish Histochemical and Cytochemical Society (Folia Histochem Cytobiol) Vol. 47 Issue 5 Pg. S121-5 ( 2009) ISSN: 1897-5631 [Electronic] Poland
PMID20067882 (Publication Type: Journal Article)

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