@article{oai:nagasaki-u.repo.nii.ac.jp:00002615, author = {Miyata, Yasuyoshi and Nakamura, Yuichiro and Yasuda, Takuji and Matsuo, Tomohiro and Ohba, Kojiro and Furusato, Bungo and Fukuoka, Junya and Sakai, Hideki}, issue = {14}, journal = {The Prostate}, month = {Oct}, note = {Background: The effects of neoadjuvant hormonal therapy (NHT) on pathological features and lymphangiogenesis in patients with prostate cancer (PCa) for each pre-operative risk classification are unclear. Methods: To clarify the anti-cancer effects of NHT, we investigated 153 patients (non-NHT group?=?80 and NHT group?=?73) who underwent radical prostatectomy (RP) in Nagasaki University Hospital. Lymph vessel density and area (evaluated by D2-40-positive vessels), vascular endothelial growth factor (VEGF)-C and VEGF-D expressions, and biochemical recurrence (BCR)-free survival were compared between these two groups for each D'Amico risk classification (low?=?33, intermediate?=?58, high?=?62 patients). Results: In low-risk PCa patients, the risks of lymph vessel invasion and BCR were significantly higher in the NHT group than in the non-NHT group (P?=?0.040 and 0.022, respectively). Such significant difference was not seen in the intermediate- or high-risk PCa groups. Lymph vessel density of the peri-tumoral and intra-tumoral areas and the lymph vessel area were significantly higher (P?