PMID- 23806212 OWN - NLM STAT- MEDLINE DCOM- 20131126 LR - 20211203 IS - 1096-0333 (Electronic) IS - 0041-008X (Linking) VI - 272 IP - 2 DP - 2013 Oct 15 TI - Trichodermin induces cell apoptosis through mitochondrial dysfunction and endoplasmic reticulum stress in human chondrosarcoma cells. PG - 335-44 LID - S0041-008X(13)00283-4 [pii] LID - 10.1016/j.taap.2013.06.010 [doi] AB - Chondrosarcoma is the second most common primary bone tumor, and it responds poorly to both chemotherapy and radiation treatment. Nalanthamala psidii was described originally as Myxosporium in 1926. This is the first study to investigate the anti-tumor activity of trichodermin (trichothec-9-en-4-ol, 12,13-epoxy-, acetate), an endophytic fungal metabolite from N. psidii against human chondrosarcoma cells. We demonstrated that trichodermin induced cell apoptosis in human chondrosarcoma cell lines (JJ012 and SW1353 cells) instead of primary chondrocytes. In addition, trichodermin triggered endoplasmic reticulum (ER) stress protein levels of IRE1, p-PERK, GRP78, and GRP94, which were characterized by changes in cytosolic calcium levels. Furthermore, trichodermin induced the upregulation of Bax and Bid, the downregulation of Bcl-2, and the dysfunction of mitochondria, which released cytochrome c and activated caspase-3 in human chondrosarcoma. In addition, animal experiments illustrated reduced tumor volume, which led to an increased number of terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL)-positive cells and an increased level of cleaved PARP protein following trichodermin treatment. Together, this study demonstrates that trichodermin is a novel anti-tumor agent against human chondrosarcoma cells both in vitro and in vivo via mitochondrial dysfunction and ER stress. CI - Copyright (c) 2013. Published by Elsevier Inc. FAU - Su, Chen-Ming AU - Su CM AD - Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. FAU - Wang, Shih-Wei AU - Wang SW FAU - Lee, Tzong-Huei AU - Lee TH FAU - Tzeng, Wen-Pei AU - Tzeng WP FAU - Hsiao, Che-Jen AU - Hsiao CJ FAU - Liu, Shih-Chia AU - Liu SC FAU - Tang, Chih-Hsin AU - Tang CH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130624 PL - United States TA - Toxicol Appl Pharmacol JT - Toxicology and applied pharmacology JID - 0416575 RN - 0 (Antineoplastic Agents) RN - 0 (Endoplasmic Reticulum Chaperone BiP) RN - 0 (HSPA5 protein, human) RN - 0 (Hspa5 protein, mouse) RN - 4682-50-2 (Trichodermin) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Antineoplastic Agents/administration & dosage/*pharmacology/therapeutic use MH - Apoptosis/*drug effects MH - Bone Neoplasms/*drug therapy/metabolism/pathology MH - Calcium/metabolism MH - Cell Culture Techniques MH - Cell Line, Tumor MH - Cell Survival/drug effects MH - Chondrosarcoma/*drug therapy/metabolism/pathology MH - Endoplasmic Reticulum Chaperone BiP MH - Endoplasmic Reticulum Stress/*drug effects MH - Humans MH - Male MH - Membrane Potential, Mitochondrial/drug effects MH - Mice MH - Mice, Nude MH - Mitochondria/*drug effects/metabolism/pathology MH - Trichodermin/administration & dosage/*pharmacology/therapeutic use MH - Xenograft Model Antitumor Assays OTO - NOTNLM OT - Apoptosis OT - Chondrosarcoma OT - Endoplasmic reticulum (ER) stress OT - Mitochondrial dysfunction OT - Trichodermin EDAT- 2013/06/29 06:00 MHDA- 2013/12/16 06:00 CRDT- 2013/06/29 06:00 PHST- 2013/03/21 00:00 [received] PHST- 2013/06/11 00:00 [revised] PHST- 2013/06/11 00:00 [accepted] PHST- 2013/06/29 06:00 [entrez] PHST- 2013/06/29 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] AID - S0041-008X(13)00283-4 [pii] AID - 10.1016/j.taap.2013.06.010 [doi] PST - ppublish SO - Toxicol Appl Pharmacol. 2013 Oct 15;272(2):335-44. doi: 10.1016/j.taap.2013.06.010. Epub 2013 Jun 24.