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Updated: Oct 19, 2025

Visualizing Mitophagy with Fluorescent Dyes for Mitochondria and Lysosome
Published on: November 30, 2022
The Nucleus/Mitochondria-Shuttling LncRNAs Function as New Epigenetic Regulators of Mitophagy in Cancer
Yan Li1,2, Wei Li1, Andrew R Hoffman2
1Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, First Hospital of Jilin University, Changchun, China.
Abstract:
Mitophagy is a specialized autophagic pathway responsible for the selective removal of damaged or dysfunctional mitochondria by targeting them to the autophagosome in order to maintain mitochondria quality. The role of mitophagy in tumorigenesis has been conflicting, with the process both supporting tumor cell survival and promoting cell death. Cancer cells may utilize the mitophagy pathway to augment their metabolic requirements and resistance to cell death, thereby leading to increased cell proliferation and invasiveness. This review highlights major regulatory pathways of mitophagy involved in cancer. In particular, we summarize recent progress regarding how nuclear-encoded long non-coding RNAs (lncRNAs) function as novel epigenetic players in the mitochondria of cancer cells, affecting the malignant behavior of tumors by regulating mitophagy. Finally, we discuss the potential application of regulating mitophagy as a new target for cancer therapy.
Insights
Mitophagy, the removal of damaged mitochondria, plays a dual role in cancer. This review explores how long non-coding RNAs (lncRNAs) regulate mitophagy, impacting tumor growth and offering new therapeutic targets.
Area of Science:
- Cell Biology
- Molecular Oncology
- Autophagy Research
Background:
- Mitophagy maintains mitochondrial quality control.
- Its role in cancer is complex, potentially promoting survival or death.
- Cancer cells may exploit mitophagy for metabolic advantage and resistance.
Purpose of the Study:
- To review mitophagy regulation in cancer.
- To highlight the role of long non-coding RNAs (lncRNAs) in cancer mitophagy.
- To discuss mitophagy as a potential cancer therapeutic target.
Main Methods:
- Literature review of mitophagy pathways in cancer.
- Focus on nuclear-encoded long non-coding RNAs (lncRNAs) as epigenetic regulators.
- Analysis of lncRNA impact on mitochondrial function and tumor behavior.
Main Results:
- Mitophagy pathways are significantly involved in cancer progression.
- lncRNAs emerge as key epigenetic regulators of mitophagy in cancer cells.
- Dysregulation of mitophagy by lncRNAs influences tumor proliferation and invasiveness.
Conclusions:
- Mitophagy's complex role in cancer warrants further investigation.
- lncRNAs represent novel epigenetic mediators of mitophagy in tumorigenesis.
- Targeting mitophagy offers a promising new avenue for cancer therapy.
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