Nanotherapeutics in autophagy: a paradigm shift in cancer treatment

Area of Science:

• Cell Biology
• Biochemistry
• Oncology

Background:

• Autophagy is a fundamental catabolic process crucial for cellular homeostasis, involving the degradation of cellular components via autophagosomes and lysosomes.
• Dysfunctional autophagy is implicated in tumorigenesis, highlighting its complex role in cancer development.
• Nanoparticles are increasingly recognized for their ability to modulate cellular processes, including autophagy.

Purpose of the Study:

• To review the mechanisms by which nanoparticles induce or inhibit autophagy.
• To elucidate the paradoxical roles of autophagy in various cancer stages.
• To summarize recent advancements in using nanoparticles as autophagy modulators for cancer therapy.

Main Methods:

• Literature review of studies investigating nanoparticle-autophagy interactions.
• Analysis of nanoparticle-mediated induction and blockage of autophagic flux.
• Examination of the differential impact of autophagy on cancer progression and treatment outcomes.

Main Results:

• Diverse nanoparticles can either induce or block autophagy, depending on their properties and stability.
• Nanoparticles demonstrate potential in modulating autophagy for therapeutic benefit in cancer.
• The role of autophagy in cancer is context-dependent, varying with cancer type and stage.

Conclusions:

• Nanoparticles offer a promising avenue for modulating autophagy in cancer treatment.
• Understanding the dual role of autophagy is critical for developing effective nanoparticle-based therapies.
• Metallic, polymeric, and liposomal nanoparticles show potential as potent autophagy modulators in oncology.