PMID- 32325639 OWN - NLM STAT- MEDLINE DCOM- 20210202 LR - 20211204 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 8 DP - 2020 Apr 18 TI - Synergistic Effects of Combination Therapy with AKT and mTOR Inhibitors on Bladder Cancer Cells. LID - 10.3390/ijms21082825 [doi] LID - 2825 AB - Despite comprehensive genomic analyses, no targeted therapies are approved for bladder cancer. Here, we investigate whether a single and combination therapy with targeted agents exert antitumor effects on bladder cancer cells through genomic alterations using a three-dimensional (3D) high-throughput screening (HTS) platform. Seven human bladder cancer cell lines were used to screen 24 targeted agents. The effects of 24 targeted agents were dramatically different according to the genomic alterations of bladder cancer cells. BEZ235 (dual phosphatidylinositol-3-kinase (PI3K)/mammalian target of rapamycin (mTOR) inhibitor) showed antitumor effects against most cell lines, while AZD2014 (mTOR inhibitor) had an IC50 value lower than 2 muM in 5637, J82, and RT4 cell lines. AZD5363 (protein kinase B (AKT) inhibitor) exerted antitumor effects on 5637, J82, and 253J-BV cells. J82 cells (PI3KCA and mTOR mutations) were sensitive to AZD5363, AZD2014, and BEZ235 alone or in AZD5363/AZD2014 and AZD5363/BEZ235 combinations. Although all single drugs suppressed cell proliferation, the combination of drugs exhibited synergistic effects on cell viability and colony formation. The synergistic effects of the combination therapy on the PI3K/Akt/mTOR pathway, apoptosis, and EMT were evident in Western blotting. Thus, the 3D culture-based HTS platform could serve as a useful preclinical tool to evaluate various drug combinations. FAU - Kim, Hyera AU - Kim H AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. AD - Division of Hematology-Oncology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu 42601, Korea. FAU - Lee, Su Jin AU - Lee SJ AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. AD - Division of Hematology-Oncology, Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul 07804, Korea. FAU - Lee, In Kyoung AU - Lee IK AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Min, Suejean C AU - Min SC AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Sung, Hyun Hwan AU - Sung HH AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Jeong, Byong Chang AU - Jeong BC AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Lee, Jeeyun AU - Lee J AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Park, Se Hoon AU - Park SH AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. LA - eng GR - HI14C2750, HI14C3418/Korea Health Industry Development Institute/Republic of Korea PT - Journal Article DEP - 20200418 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Antineoplastic Agents) RN - 0 (Benzamides) RN - 0 (Imidazoles) RN - 0 (Morpholines) RN - 0 (Protein Kinase Inhibitors) RN - 0 (Pyrimidines) RN - 0 (Pyrroles) RN - 0 (Quinolines) RN - 0BSC3P4H5X (vistusertib) RN - EC 2.7.11.1 (AKT1 protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - RUJ6Z9Y0DT (dactolisib) RN - WFR23M21IE (capivasertib) SB - IM MH - Antineoplastic Agents/*pharmacology MH - Antineoplastic Combined Chemotherapy Protocols/*pharmacology MH - Apoptosis/drug effects MH - Benzamides/pharmacology MH - Cell Line, Tumor MH - Cell Proliferation/*drug effects MH - Cell Survival/drug effects MH - Drug Resistance, Neoplasm/drug effects MH - Drug Synergism MH - Epithelial-Mesenchymal Transition/drug effects MH - Humans MH - Imidazoles/pharmacology MH - Inhibitory Concentration 50 MH - Morpholines/pharmacology MH - Mutation MH - Protein Kinase Inhibitors/*pharmacology MH - Proto-Oncogene Proteins c-akt/*antagonists & inhibitors/metabolism MH - Pyrimidines/pharmacology MH - Pyrroles/pharmacology MH - Quinolines/pharmacology MH - Signal Transduction/drug effects MH - TOR Serine-Threonine Kinases/*antagonists & inhibitors/metabolism MH - Urinary Bladder Neoplasms/*drug therapy/enzymology/genetics/metabolism PMC - PMC7215775 OTO - NOTNLM OT - AKT OT - AZD2014 OT - AZD5363 OT - BEZ235 OT - bladder cancer OT - mTOR COIS- The authors declare no conflict of interest. EDAT- 2020/04/25 06:00 MHDA- 2021/02/03 06:00 PMCR- 2020/04/01 CRDT- 2020/04/25 06:00 PHST- 2020/03/16 00:00 [received] PHST- 2020/04/12 00:00 [revised] PHST- 2020/04/16 00:00 [accepted] PHST- 2020/04/25 06:00 [entrez] PHST- 2020/04/25 06:00 [pubmed] PHST- 2021/02/03 06:00 [medline] PHST- 2020/04/01 00:00 [pmc-release] AID - ijms21082825 [pii] AID - ijms-21-02825 [pii] AID - 10.3390/ijms21082825 [doi] PST - epublish SO - Int J Mol Sci. 2020 Apr 18;21(8):2825. doi: 10.3390/ijms21082825.