PMID- 32341329 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20211204 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 26 DP - 2020 Apr 28 TI - Apoptosis Activation in Thyroid Cancer Cells by Jatrorrhizine-Platinum(II) Complex via Downregulation of PI3K/AKT/Mammalian Target of Rapamycin (mTOR) Pathway. PG - e922518 LID - 10.12659/MSM.922518 [doi] AB - BACKGROUND Thyroid cancer, which is the most common endocrine cancer, has shown a drastic increase in incidence globally over the past decade. The present study investigated the thyroid cancer-inhibitory potential of jatrorrhizine-platinum(II) complex (JR-P(II) in vitro and in vivo. MATERIAL AND METHODS The JR-P(II)-mediated cytotoxicity in thyroid carcinoma cells was determined by using MTT assay. Assessment of acetylated histones, tubulin, and DNA repair proteins was made by Western blot assays. Flow cytometry was used for apoptosis and ROS accumulation measurement. RESULTS The JR-P(II) suppressed proliferative capacity of SW1736, BHP7-13, and 8305C cells. JR-P(II) treatment markedly promoted expression of acetylated histone H3, H4, and tubulin in a dose-dependent manner. Treatment with JR-P(II) significantly elevated the proportion of cells in sub-G1 and promoted cleaved caspase-3 and -9. In JR-P(II)-treated cells, DCFH-DA fluorescence was much higher relative to control cells. The JR-P(II) treatment consistently suppressed expression of pS6, p-ERK1/2, p-4E-BP1, and p-AKT, and increased p-H2AX expression and suppressed KU70 and KU80 protein levels. The level of RAD51 was repressed in JR-P(II)-treated cells. JR-P(II) administration in mice caused no significant change in body weight, and it inhibited SW1736 tumor growth in mice. CONCLUSIONS The JR-P(II) induced cytotoxicity in thyroid cancer cells by inhibiting the mechanism responsible for repair of double-stranded DNA. The in vivo data also revealed that JR-P(II) effectively inhibits thyroid tumor growth by inducing DNA damage. Thus, our results suggest that further evaluation of JR-P(II) as a therapeutic candidate for thyroid cancer is warranted. FAU - Lu, KeBin AU - Lu K AD - Department of General Surgery, Yuyao People's Hospital of Zhejiang Province, Yuyao, Zhejiang, CA, China (mainland). FAU - Wei, Wenjun AU - Wei W AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). FAU - Hu, Jiaqian AU - Hu J AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). FAU - Wen, Duo AU - Wen D AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). FAU - Ma, Ben AU - Ma B AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). FAU - Liu, Wanlin AU - Liu W AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Medical College, Fudan University, Shanghai, China (mainland). FAU - Wang, Yu AU - Wang Y AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). FAU - Lu, Zhongwu AU - Lu Z AD - Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China (mainland). AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland). LA - eng PT - Journal Article DEP - 20200428 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 091S1F8V5Q (jatrorrhizine) RN - 0I8Y3P32UF (Berberine) RN - 49DFR088MY (Platinum) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - Apoptosis/*drug effects MH - Autophagy/drug effects MH - Berberine/*analogs & derivatives/pharmacology MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - China MH - Female MH - Humans MH - Mice MH - Mice, Nude MH - Phosphatidylinositol 3-Kinases/metabolism MH - Platinum/metabolism/pharmacology MH - Proto-Oncogene Proteins c-akt/metabolism MH - Signal Transduction/drug effects MH - TOR Serine-Threonine Kinases/metabolism MH - Thyroid Gland/pathology MH - Thyroid Neoplasms/drug therapy/*metabolism MH - Xenograft Model Antitumor Assays PMC - PMC7201896 EDAT- 2020/04/29 06:00 MHDA- 2021/01/05 06:00 PMCR- 2020/04/28 CRDT- 2020/04/29 06:00 PHST- 2020/04/29 06:00 [entrez] PHST- 2020/04/29 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/04/28 00:00 [pmc-release] AID - 922518 [pii] AID - 10.12659/MSM.922518 [doi] PST - epublish SO - Med Sci Monit. 2020 Apr 28;26:e922518. doi: 10.12659/MSM.922518.