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Dove Press, Drug Design, Development and Therapy, p. 5949

DOI: 10.2147/dddt.s89810

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Tumor-induced VEGF-C overexpression in retroperitoneal lymph nodes in VX2 carcinoma-bearing rabbits

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Yong-Wen Huang,1,* Yun Zhou,1,* Chun-Yan Lan,1 Yin Wang,1 Yan-Ling Feng,1 Rong-Zhen Luo,2 Ji-Hong Liu1 1Department of Gynecology, 2Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People’s Republic of China *These authors contributed equally to this work Objective: To establish the retroperitoneal lymph node (RLN) metastasis model of cervical carcinoma in rabbits and evaluate the relationship of vascular endothelial growth factor-C (VEGF-C) expression and the lymph node status. Methods: Forty-eight rabbits were injected with VX2 cells or RPMI solution at muscular mucosae of the myometrium 0.5 cm away from the cervix. Animals were treated with or without cis-diamminedichloroplatinum(II) (cisplatin: DDP) and sacrificed on days 15, 21, and 27 post-VX2 or RPMI injections. Tumor mass and RLNs were examined histopathologically. Quantitative real-time PCR was used to examine the changes in VEGF-C mRNA expression. Levels of VEGF-C protein expression in tissues were determined using immunohistochemistry staining. Results: Development of VX2 cervical carcinoma and the RLNs metastasis was confirmed with pathological examination. Significantly increased tumor volume was observed on days 15, 21, and 27 postinjection (P