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β-Eudesmol induces the expression of apoptosis pathway proteins in cholangiocarcinoma cell lines
Chisato Narahara1, Teerachat Saeheng1, Wanna Chaijaroenkul2
1Department of Clinical Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
Background:
Cholangiocarcinoma (CCA) is a neglected disease prevalent in developing countries with high burden and mortality rate, and there is no effective treatment. We aimed to investigate β-eudesmol molecular target of action in human CCA cell lines using the selected key molecules of apoptotic pathways.
Materials And Methods:
Two CCA cell lines (HuH28 and HuCCT1) were assessed at different time points after β-eudesmol treatment for mRNA and protein expression profiles of caspase-3, -8, -9, p53, p21, Bcl-2, and Bax by real-time polymerase chain reaction and western blot, respectively.
Results:
β-eudesmol induced expressions of p21 and p53 in mRNA/protein level in HuH28 and HuCCT1 cells. These CCA cells also expressed caspase-3, -8, -9 and bax (mRNA and/or protein level) among others after β-eudesmol treatment indicating its role in both intrinsic and extrinsic caspase-dependent apoptotic pathways.
Conclusion:
The study demonstrated that β-eudesmol induced the expression of apoptosis pathway proteins, suggesting its potential role in promoting the caspase-dependent apoptotic pathway, and induction of the cell cycle arrest in CCA cell lines. β-eudesmol can be considered as a potential compound for further investigation as an anti-CCA agent.
Insights
Beta-eudesmol triggers apoptosis in cholangiocarcinoma (CCA) cells by activating caspase pathways and inducing cell cycle arrest. This natural compound shows potential as an anti-CCA therapeutic agent.
Area of Science:
- Molecular Biology
- Cancer Research
- Pharmacology
Background:
- Cholangiocarcinoma (CCA) is a deadly cancer with limited treatment options, particularly in developing nations.
- Investigating novel therapeutic compounds for CCA is crucial due to its high mortality rate.
Purpose of the Study:
- To elucidate the molecular mechanism of beta-eudesmol in human CCA cell lines.
- To examine beta-eudesmol's effect on key apoptotic pathway molecules.
Main Methods:
- Real-time PCR and Western blot were used to analyze gene and protein expression.
- Two CCA cell lines (HuH28, HuCCT1) were treated with beta-eudesmol.
- Expression of caspases (-3, -8, -9), p53, p21, Bcl-2, and Bax was assessed.
Main Results:
- Beta-eudesmol upregulated p53 and p21 at both mRNA and protein levels.
- CCA cells showed increased expression of caspase-3, -8, -9, and Bax after treatment.
- These findings indicate beta-eudesmol's role in both intrinsic and extrinsic apoptotic pathways.
Conclusions:
- Beta-eudesmol induces apoptosis and cell cycle arrest in CCA cell lines.
- The compound activates caspase-dependent apoptotic pathways.
- Beta-eudesmol demonstrates potential as a novel anti-CCA therapeutic agent for further research.
Related Concept Videos
01:31The Intrinsic Apoptotic Pathway
01:17The Extrinsic Apoptotic Pathway
01:24Caspases
01:30Apoptosis