@article { author = {}, title = {Experimental Study on Residual Tumor Angiogenesis after Cryoablation}, journal = {Asian Pacific Journal of Cancer Prevention}, volume = {15}, number = {6}, pages = {2491-2494}, year = {2014}, publisher = {West Asia Organization for Cancer Prevention (WAOCP), APOCP's West Asia Chapter.}, issn = {1513-7368}, eissn = {2476-762X}, doi = {}, abstract = {Objective: To explore the mechanism and significance of tumor angiogenesis by observing changes of microvesseldensity (MVD) and expression of vascular endothelial growth factor (VEGF) in residual tumor tissuesafter cryoablation. Materials and Methods: A total of 18 nude mice xenograft models with transplanted lungadenocarcinoma cell line A549 were established and randomly divided into 3 groups when the maximum diameterof tumor reached 1 cm: control, cisplatin (DDP) and cryoablation. The nude mice were sacrificed after 21-dcryoablation to obtain the tumor tissues. Then immunohistochemistry was applied to determine MVD and theexpression of VEGF in tumor tissues. Results: The tumor volumes of control group, DDP group and cryoablationgroup were 1.48±0.14 cm3, 1.03±0.12 cm3 and 0.99±0.06 cm3 respectively and the differences were significant(P<0.01), whereas MVD values were 21.1±0.86, 24.7±0.72 and 29.2±0.96 (P<0.01) and the positive expressionrates of VEGF were 36.2±1.72%, 39.0±1.79% and 50.8±2.14% (P<0.01), respectively, showing that MVD wasproportional to the positive expression of VEGF (r=0.928, P<0.01). Conclusions: Cryoablation can effectivelyinhibit tumor growth, but tumor angiogenesis significantly increases in residual tumors, with high expressionof VEGF playing an important role in the residual tumor angiogenesis.}, keywords = {cryoablation,transplanted tumor,A549 lung adenocarcinoma cells,VEGF,microvessel density}, url = {https://journal.waocp.org/article_28946.html}, eprint = {https://journal.waocp.org/article_28946_480bd0b276b4b32cd7afeec4d61733aa.pdf} }