RT Journal Article SR Electronic T1 IL-39 Reduces Proliferation and Promotes Apoptosis of Bladder Cancer by Altering the Activity of Cyclin E and Fas JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 2239 OP 2245 DO 10.21873/anticanres.15000 VO 41 IS 5 A1 HUAPING XIAO A1 HAMZA ALISIC A1 BRANDON T. REIMAN A1 ZULIANG DENG A1 ZIWEN ZHU A1 NATHAN T. GIVENS A1 QIAN BAI A1 ANDREW TAIT A1 MARK R. WAKEFIELD A1 YUJIANG FANG YR 2021 UL http://ar.iiarjournals.org/content/41/5/2239.abstract AB Background/Aim: This study was designed to investigate the effect of IL-39 on T24 bladder cancer (BC) cell line survival and growth. Materials and Methods: In order to assess the direct effect of IL-39 on survival, proliferation, and apoptosis of T24 BC cells, we utilized a clonogenic survival assay, a cell proliferation assay, and caspase-3 activity kits. Potential proliferative and apoptotic molecular mechanisms were evaluated by RT-PCR. Results: Treatment of T24 BC cells with IL-39 resulted in a significant reduction in the percentage of colonies. The anti-tumor effect of IL-39 on T24 bladder cancer cells correlated strongly with a decrease in cyclin E, in combination with an increase in the mRNA levels of Fas. Conclusion: IL-39 impedes the growth and survival of T24 BC cells by inhibiting growth and promoting apoptosis. This ability to modulate gene transcription in neoplastic cells shows promise and warrants further research in immunotherapy.