Restoring Mitochondrial Function to Drive Tumor Differentiation
Author Information
Author(s): Ye Jiangbin, Jiang Haowen, Tiche Sarah, He Clifford, Liu Junyan, Bian Fuyun, Jedoui Mohamed, Forgo Balint, Islam Md Tauhidul, Zhao Meng, Emengo Pamela, He Bo, Li Yang, Li Albert, Truong Anh, Ho Jestine, Simmermaker Cathyrin, Yang Yanan, Zhou Meng-Ning, Hu Zhen, Svensson Katrin, Cuthbertson Daniel, Hazard Florette, Xing Lei, Shimada Hiroyuki, Chiu Bill
Primary Institution: Stanford University
Hypothesis
Can restoring mitochondrial quantity and quality drive tumor redifferentiation?
Conclusion
Restoring mitochondrial function using retinoic acid and a mitochondrial uncoupler promotes neuroblastoma differentiation and inhibits proliferation.
Supporting Evidence
- Retinoic acid treatment increased mitochondrial DNA copy number and promoted mitochondrial elongation.
- Combination treatment with retinoic acid and a mitochondrial uncoupler significantly enhanced differentiation in neuroblastoma cells.
- Single-cell RNA sequencing revealed that the combination treatment effectively eliminated the stem cell population.
- Histological analysis showed signs of tumor differentiation in vivo.
- Patient gene signature analysis indicated that the combination treatment could improve survival outcomes.
Takeaway
This study shows that fixing the power plants in cancer cells can help them become more like normal cells again.
Methodology
The study used neuroblastoma cell lines and an orthotopic xenograft model to test the effects of retinoic acid and a mitochondrial uncoupler on differentiation and proliferation.
Potential Biases
Potential off-target effects of treatments and the use of specific cell lines may introduce bias.
Limitations
The combination treatment achieved only partial differentiation in vivo, likely due to tumor microenvironment heterogeneity.
Participant Demographics
The study focused on neuroblastoma, a pediatric cancer.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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