PMID- 30845773 OWN - NLM STAT- MEDLINE DCOM- 20190822 LR - 20200225 IS - 2218-273X (Electronic) IS - 2218-273X (Linking) VI - 9 IP - 3 DP - 2019 Mar 6 TI - [Pt(O,O'-acac)(gamma-acac)(DMS)] Induces Autophagy in Caki-1 Renal Cancer Cells. LID - 10.3390/biom9030092 [doi] LID - 92 AB - We have demonstrated the cytotoxic effects of [Pt(O,O'-acac)(gamma-acac)(dimethyl sulfide (DMS))] on various immortalized cell lines, in primary cultures, and in murine xenograft models in vivo. Recently, we also showed that [Pt(O,O'-acac)(gamma-acac)(DMS)] is able to kill Caki-1 renal cells both in vivo and in vitro. In the present paper, apoptotic and autophagic effects of [Pt(O,O'-acac)(gamma-acac)(DMS)] and cisplatin were studied and compared using Caki-1 cancerous renal cells. The effects of cisplatin include activation of caspases, proteolysis of enzyme poly ADP ribose polymerase (PARP), control of apoptosis modulators B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), and BH3-interacting domain death agonist (Bid), and cell cycle arrest in G2/M phase. Conversely, [Pt(O,O'-acac)(gamma-acac)(DMS)] did not induce caspase activation, nor chromatin condensation or DNA fragmentation. The effects of [Pt(O,O'-acac)(gamma-acac)(DMS)] include microtubule-associated proteins 1A/1B light chain 3B (LC3)-I to LC3-II conversion, Beclin-1 and Atg-3, -4, and -5 increase, Bcl-2 decrease, and monodansylcadaverine accumulation in autophagic vacuoles. [Pt(O,O'-acac)(gamma-acac)(DMS)] also modulated various kinases involved in intracellular transduction regulating cell fate. [Pt(O,O'-acac)(gamma-acac)(DMS)] inhibited the phosphorylation of mammalian target of rapmycin (mTOR), p70S6K, and AKT, and increased the phosphorylation of c-Jun N-terminal kinase (JNK1/2), a kinase activity pattern consistent with autophagy induction. In conclusion, while in past reports the high cytotoxicity of [Pt(O,O'-acac)(gamma-acac)(DMS)] was always attributed to its ability to trigger an apoptotic process, in this paper we show that Caki-1 cells die as a result of the induction of a strong autophagic process. FAU - Antonaci, Giovanna AU - Antonaci G AD - Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. giovanna.antonaci@unisalento.it. FAU - Cossa, Luca Giulio AU - Cossa LG AD - Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. lucagiulio.cossa@gmail.com. FAU - Muscella, Antonella AU - Muscella A AD - Laboratory of Cell Pathology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. antonella.muscella@unisalento.it. FAU - Vetrugno, Carla AU - Vetrugno C AD - Laboratory of Cell Pathology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. santo.marsigliante@unisalento.it. FAU - De Pascali, Sandra Angelica AU - De Pascali SA AD - Laboratory of General Inorganic Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. sandra.depascali@unisalento.it. FAU - Fanizzi, Francesco Paolo AU - Fanizzi FP AD - Laboratory of General Inorganic Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. fp.fanizzi@unisalento.it. FAU - Marsigliante, Santo AU - Marsigliante S AD - Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy. sandra.depascali@unisalento.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190306 PL - Switzerland TA - Biomolecules JT - Biomolecules JID - 101596414 RN - 0 (Antineoplastic Agents) RN - 0 (Organoplatinum Compounds) RN - 0 (Pt(O,O'-acac)(gamma-acac)(DMS)) RN - Renal cell carcinoma 1 MH - Antineoplastic Agents/chemical synthesis/chemistry/*pharmacology MH - Autophagy/*drug effects MH - Carcinoma, Renal Cell/*drug therapy/pathology MH - Cell Cycle/drug effects MH - Cell Proliferation/drug effects MH - Dose-Response Relationship, Drug MH - Drug Screening Assays, Antitumor MH - Humans MH - Organoplatinum Compounds/chemical synthesis/chemistry/*pharmacology MH - Structure-Activity Relationship MH - Tumor Cells, Cultured PMC - PMC6468382 OTO - NOTNLM OT - apoptosis OT - autophagy OT - cancerous renal cells OT - cisplatin COIS- The authors declare no conflict of interest. EDAT- 2019/03/09 06:00 MHDA- 2019/08/23 06:00 PMCR- 2019/03/01 CRDT- 2019/03/09 06:00 PHST- 2019/01/24 00:00 [received] PHST- 2019/02/23 00:00 [revised] PHST- 2019/02/26 00:00 [accepted] PHST- 2019/03/09 06:00 [entrez] PHST- 2019/03/09 06:00 [pubmed] PHST- 2019/08/23 06:00 [medline] PHST- 2019/03/01 00:00 [pmc-release] AID - biom9030092 [pii] AID - biomolecules-09-00092 [pii] AID - 10.3390/biom9030092 [doi] PST - epublish SO - Biomolecules. 2019 Mar 6;9(3):92. doi: 10.3390/biom9030092.