Targeting mitochondria in cancer therapy: Insight into photodynamic and photothermal therapies
Jamileh Kadkhoda1, Ali Tarighatnia2, Nader D Nader3
1Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract:
Mitochondria are critical multifunctional organelles in cells that generate power, produce reactive oxygen species, and regulate cell survival. Mitochondria that are dysfunctional are eliminated via mitophagy as a way to protect cells under moderate stress and physiological conditions. However, mitophagy is a double-edged sword and can trigger cell death under severe stresses. By targeting mitochondria, photodynamic (PD) and photothermal (PT) therapies may play a role in treating cancer. These therapeutic modalities alter mitochondrial membrane potential, thereby affecting respiratory chain function and generation of reactive oxygen species promotes signaling pathways for cell death. In this regard, PDT, PTT, various mitochondrion-targeting agents and therapeutic methods could have exploited the vital role of mitochondria as the doorway to regulated cell death. Targeted mitochondrial therapies would provide an excellent opportunity for effective mitochondrial injury and accurate tumor erosion. Herein, we summarize the recent progress on the roles of PD and PT treatments in regulating cancerous cell death in relation to mitochondrial targeting and the signaling pathways involved.
Insights
Photodynamic (PD) and photothermal (PT) therapies target mitochondria to induce cancer cell death. These therapies exploit mitochondrial dysfunction for tumor erosion, offering a promising approach for cancer treatment.
Area of Science:
- Cell Biology
- Biomedical Engineering
- Oncology
Background:
- Mitochondria are vital organelles regulating cellular energy, reactive oxygen species (ROS), and cell survival.
- Mitophagy, the removal of dysfunctional mitochondria, protects cells under moderate stress but can induce cell death under severe stress.
- Mitochondria play a crucial role in regulated cell death pathways.
Purpose of the Study:
- To review the role of photodynamic (PD) and photothermal (PT) therapies in cancer treatment by targeting mitochondria.
- To explore how these therapies modulate mitochondrial function and induce cancer cell death.
- To summarize recent advancements in mitochondrion-targeting agents and their signaling pathways in cancer therapy.
Main Methods:
- Review of recent scientific literature on PD and PT therapies targeting mitochondria in cancer.
- Analysis of mechanisms by which PD and PT therapies affect mitochondrial membrane potential, respiratory chain, and ROS generation.
- Examination of signaling pathways involved in mitochondrion-mediated cancer cell death.
Main Results:
- PD and PT therapies can effectively target mitochondria, altering their function to promote cancer cell death.
- These therapies leverage the dual role of mitochondria in cell survival and death pathways.
- Targeted mitochondrial therapies show potential for precise tumor erosion and effective cancer treatment.
Conclusions:
- Targeting mitochondria with PD and PT therapies is a promising strategy for cancer treatment.
- Understanding the signaling pathways involved is key to optimizing these mitochondrion-targeting therapies.
- Further research into these targeted therapies could lead to improved cancer treatment outcomes.
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