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Vernodalin Triggers ROS-Mediated Apoptosis in TPC-1 Human PapillaryThyroid Cancer Cells via Suppression of the MAPKs
Xijia Yang1, Meng Wei2, Yuan An3
1Department of General Surgery, Xi'an Gaoxin Hospital, Xi'an, 710000, China.
Background:
Thyroid Cancer (TC) is an endocrine organ malignancy that has become more common in recent decades. Vernodalin (VN), a cytotoxic sesquiterpene, has been reported to exhibit anticancer properties against human breast and liver cancer cells. However, no study has explored the efficacy of VN with respect to its antiproliferative and apoptotic action on human Papillary Thyroid Cancer cells (PTC).
Objective:
The study intended to examine the antitumor and antiproliferative effects of VN and the apoptosis mechanisms underlying its action on TPC-1 human PTC cells.
Methods:
In this study, we examined the VN cell viability by MTT assay; performed ROS measurement by DCFH staining method, MMP identification by Rh-123 staining method, and apoptotic morphological assay by employing AO/EB and DAPI stain method, and further, p38 MAPK/ERK/JNK cell proliferation markers were determined by western blotting technique.
Results:
The findings showed that VN could inhibit the growth of PTC cells by increasing intracellular ROS, damaging MMP, and stimulating apoptosis in a concentration-dependent manner. The study demonstrated how VN inhibited TPC-1 cell viability by causing ROS-induced cell death via the MAPK signaling pathway.
Conclusion:
VN may serve as an agonist to impact apoptosis in PTC cells. In human PTC, VN could play an effective role in chemotherapy. More studies pertaining to animal tumor models are needed to prove its anti-cancer effectiveness in vivo.
Insights
Vernodalin (VN) effectively inhibits human papillary thyroid cancer (PTC) cell growth by inducing cell death through increased reactive oxygen species (ROS) and apoptosis. This sesquiterpene shows promise as a potential chemotherapy agent for thyroid cancer.
Area of Science:
- Endocrinology
- Oncology
- Pharmacology
Background:
- Thyroid cancer (TC) incidence is rising globally.
- Vernodalin (VN), a sesquiterpene, shows anticancer activity in breast and liver cells.
- VN's effects on human papillary thyroid cancer (PTC) remain unexplored.
Purpose of the Study:
- To investigate the antitumor and antiproliferative effects of Vernodalin (VN) on human PTC cells.
- To elucidate the apoptosis mechanisms induced by VN in TPC-1 cells.
Main Methods:
- Cell viability assessed via MTT assay.
- Reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) measured using specific staining methods.
- Apoptosis visualized through AO/EB and DAPI staining; MAPK pathway markers analyzed by western blotting.
Main Results:
- VN inhibited PTC cell growth in a concentration-dependent manner.
- VN treatment increased intracellular ROS and damaged MMP, inducing apoptosis.
- VN-induced TPC-1 cell death occurred via ROS generation and the MAPK signaling pathway.
Conclusions:
- VN demonstrates potential as an apoptosis-inducing agent in PTC.
- VN may be a valuable therapeutic agent in human PTC chemotherapy.
- Further in vivo studies using animal models are warranted to confirm VN's anti-cancer efficacy.
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