Targeting sub-cellular organelles for boosting precision photodynamic therapy
Gopal Singh Attar1, Manoj Kumar1, Vandana Bhalla1
1Department of chemistry UGC Sponsored-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar-143005, Punjab, India. Gopal24chemistry@gmail.com.
Summary
Targeted photodynamic therapy uses specific organelle-targeting photosensitizers for precise cancer treatment. This approach enhances efficiency, reduces toxicity, and minimizes recurrence by triggering organelle-mediated cell death.
Area of Science:
- Biomedical Engineering
- Oncology
- Photochemistry
Background:
- Photodynamic therapy (PDT) is a promising non-invasive cancer treatment.
- Organelle-specific PDT offers enhanced precision and reduced side effects.
- Targeting organelles triggers specific cell death pathways for improved outcomes.
Purpose of the Study:
- To review recent advancements in organelle-targeted photodynamic therapy.
- To highlight representative photosensitizers for specific organelle targeting.
- To discuss organelle structure and mediated cell death signaling in PDT.
Main Methods:
- Comprehensive literature review of organelle-targeted PDT.
- Analysis of photosensitizers targeting endoplasmic reticulum, Golgi apparatus, mitochondria, nucleus, and lysosomes.
- Focus on structure-activity relationships and cell death mechanisms.
Main Results:
- Organelle-specific PDT significantly enhances therapeutic efficacy.
- Targeting organelles allows for reduced drug dosage and minimized systemic toxicity.
- This approach effectively overcomes multidrug resistance and prevents tumor recurrence.
Conclusions:
- Organelle-targeted PDT represents a significant advancement in precision cancer therapy.
- Future research should focus on overcoming challenges in clinical translation.
- Optimizing photosensitizer design and understanding cell death pathways are crucial.


