ReferenceID 2679
Effect of pristimerin on apoptosis through activation of ROS/ endoplasmic reticulum (ER) stress-mediated noxa in colorectal cancer
Phytomedicine
BACKGROUND: Pristimerin, a natural quinonemethid triterpenoid found in different spp. of Celastraceae and Hippocrateaceae families, has been reported to exhibit potent antitumor activities against colorectal cancer (CRC)
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Record Fields
Scalar fields from the final reference record.
- Reference Id
- 2679
- Evidence Id
- 19269
- Core Evidence Id
- 19269
- Source Reference Id
- 5355
- Herb2 Reference Id
- HBREF006152
- Subject Paper Key
- HBIN040737_33202325
- Pubmed Id
- 33202325
- Doi
- 10.1016/j.phymed.2020.153399
- Paper Title
- Effect of pristimerin on apoptosis through activation of ROS/ endoplasmic reticulum (ER) stress-mediated noxa in colorectal cancer
- Paper Abstract
- BACKGROUND: Pristimerin, a natural quinonemethid triterpenoid found in different spp. of Celastraceae and Hippocrateaceae families, has been reported to exhibit potent antitumor activities against colorectal cancer (CRC). However, the mechanisms underlying pristimerin-induced apoptosis in CRC is not clear. PURPOSE: This study aimed to investigate the mechanisms of pristimerin-induced apoptosis against CRC in vitro and in vivo. METHODS: Cell viability and cell apoptosis analyses were conducted to assess the effects of pristimerin on CRC. Western blotting was performed to detect the expression of proteins affected by pristimerin in vitro and in vivo. HCT116 colon cancer xenografts and APCmin/+ mouse models were used to evaluate the anti-CRC effect of pristimerin in vivo. RESULTS: Our data showed that pristimerin induced apoptosis by regulating proapoptotic proteins of which Noxa showed higher expression. Pristimerin triggered reactive oxygen species (ROS)-mediated endoplasmic reticulum (ER) stress signaling activation. Pristimerin significantly elevated the expression of ER stress-related proteins, resulting in activation of the IRE1alpha and c-Jun N-terminal kinase (JNK) signal pathway through the formation of the IRE1alpha-TRAF2-ASK1 complex. Pristimerin exhibited apoptosis-inducing activities in HCT116 colon cancer xenografts and APCmin/+ mice. CONCLUSION: Both in vitro and in vivo data demonstrated that pristimerin induced Noxa expression and apoptosis through activation of the ROS/ER stress/JNK axis in CRC. Thus, pristimerin may be a promising antitumor agent for CRC.
- Journal
- Phytomedicine
- Publish Year
- 2021
- Experiment Subject
- mouse; apcmin; hct116 colon cancer xenografts
- Experiment Type
- Animal & Cell Experiment
- Phenotype Related
- Colon Cancer; Colorectal Cancer
- Paper Title Cn
- Paper Title En
- Effect of pristimerin on apoptosis through activation of ROS/ endoplasmic reticulum (ER) stress-mediated noxa in colorectal cancer
- Bilingual Status
- semi_complete