IMR Press / EJGO / Volume 25 / Issue 1 / pii/2004105

European Journal of Gynaecological Oncology (EJGO) is published by IMR Press from Volume 40 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Open Access Original Research

Effect of cis-diammine dichloroplatinum on vascular endothelial growth factor expression in uterine cervical carcinoma

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1 Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe (Japan)
Eur. J. Gynaecol. Oncol. 2004, 25(1), 33–39;
Published: 10 February 2004
Abstract

Purpose of investigation: In this study, we investigated the effects of cis-diammine dichloroplatinum (CDDP) on VEGF mRNA expression and VEGF production in uterine cervical carcinoma tissues obtained from patients with locally advanced disease and in CaSki cells cultured in vitro. Methods: VEGF in cultured CaSki cells and in the culture media was measured using a sensitive enzyme-linked immunosorbent assay (ELISA) before and 24 h, 48 h and 72 h after 3 h exposure to CDDP. VEGF mRNA expression in CaSki cells was assessed by the semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) before and 24 h and 48 h after 3 h exposure to CDDP. We also examined the effect of CDDP on microvessel counts in uterine cervical carcinoma tissues obtained before and after high-dose CDDP intraarterial chemotherapy. lmmunohistochemical staining using a monoclonal antibody against CD34 was carried out with cervical carcinoma tissue specimens, and microvessel counts were quantified by counting vessels. Results: CDDP treatment resulted in significant increases in not only VEGF concentrations in cultured CaSki cells and culture media but also in VEGF mRNA expression levels in cultured CaSki cells in a time-dependent and dose-dependent manner com­pared to untreated controls (p < 0.05, n = 5). On the other hand, VEGF concentrations and microvessel counts in cervical carcinoma tissues were significantly lower in cases with complete response (CR) and partial response (PR), compared to those before treat­ment (p < 0.05, n = 5). By contrast, in cases with no change (NC) to CDDP, both VEGF concentrations and microvessel counts did not decrease and rather showed a somewhat increase compared with levels prior to the treatment. Conclusions: These results suggest that CDDP-induced increases in VEGF production by cervical carcinoma cells may stimulate angiogenesis in the tumor lesion after CDDP treatment.

Keywords
VEGF
Uterine cervical carcinoma
CaSki cells
RT-PCR
CDDP
Percutaneous pelvic perfusion extracorporeal chemofiltration (PPPEC)
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