ObjectivesTo critically review the currently available evidence of studies comparing robotic partial nephrectomy (RPN) and open partial nephrectomy (OPN).Materials and MethodsA comprehensive review of the literature from Pubmed, Web of Science and Scopus was performed in October 2013. All relevant studies comparing RPN with OPN were included for further screening. A cumulative meta-analysis of all comparative studies was performed and publication bias was assessed by a funnel plot.ResultsEight studies were included for the analysis, including a total of 3418 patients (757 patients in the robotic group and 2661 patients in the open group). Although RPN procedures had a longer operative time (weighted mean difference [WMD]: 40.89; 95% confidence interval [CI], 14.39–67.40; p = 0.002), patients in this group benefited from a lower perioperative complication rate (19.3% for RPN and 29.5% for OPN; odds ratio [OR]: 0.53; 95%CI, 0.42–0.67; p<0.00001), shorter hospital stay (WMD: −2.78; 95%CI, −3.36 to −1.92; p<0.00001), less estimated blood loss(WMD: −106.83; 95%CI, −176.4 to −37.27; p = 0.003). Transfusions, conversion to radical nephrectomy, ischemia time and estimated GFR change, margin status, and overall cost were comparable between the two techniques. The main limitation of the present meta-analysis is the non-randomization of all included studies.ConclusionsRPN appears to be an efficient alternative to OPN with the advantages of a lower rate of perioperative complications, shorter length of hospital stay and less blood loss. Nevertheless, high quality prospective randomized studies with longer follow-up period are needed to confirm these findings.
HOXA1, a member of the HOX gene family, has been implicated in tumor progression. However, the role of HOXA1 in prostate cancer is not well-established. In the present study, we found that HOXA1 was highly expressed in prostate cancer cells. We then repressed the expression of HOXA1 by short hairpin RNA (shRNA) to investigate the function of HOXA1 in prostate cancer cells. Our in vitro data showed that knockdown of HOXA1 attenuated the growth, invasion and migration of prostate cancer DU-145 and PC-3 cells. Furthermore, knockdown of HOXA1 resulted in an increased E-cadherin level and decreased Snail and MMP-3 levels in the DU-145 cells. In addition, knockdown of HOXA1 inhibited activation of ERK1/2 and AKT in the DU-145 cells. Our in vivo data revealed that knockdown of HOXA1 suppressed the growth and metastasis of prostate cancer cells. Collectively, our findings suggest that HOXA1 is involved in the regulation of prostate cancer progression, including cell growth, migration, invasion and metastasis. Thus, downregulation of HOXA1 may be a novel approach for the treatment of prostate cancer.
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