Therapeutic targets in the selective killing of cancer cells by nanomaterials

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Cancer involves numerous protein defects and pathway dysregulation, leading to severe toxicity with conventional anticancer agents.
• Cancer cells exhibit increased reactive oxygen species (ROS) and antioxidant levels, presenting therapeutic targets.
• Nanomaterials (NMs) offer potential for targeted cancer therapy by exploiting cancer cell-specific biochemical features.

Purpose of the Study:

• To explore the potential of engineered nanomaterials for targeted cancer therapy.
• To investigate how nanomaterial physicochemical properties influence interaction with cancer cells.
• To assess the efficacy of nanomaterials in inducing cancer cell death.

Main Methods:

• Engineering nanomaterials with optimal size and surface charge for selective interaction with cancer cell membranes.
• Investigating the differential electrochemical interactions and internalization of NMs in cancer versus normal cells.
• Analyzing the pH-dependent dissolution of internalized NMs within cancer cells.
• Evaluating the induction of various cell death pathways (apoptosis, necroptosis, autophagy) by NMs.

Main Results:

• Optimally engineered NMs show preferential interaction and greater internalization in cancer cells due to altered membrane potentials.
• Internalized NMs exhibit differential dissolution in cancer cells, influenced by the acidic intracellular environment.
• NMs can induce cancer cell death through apoptosis, necroptosis, or autophagy, individually or synergistically.
• NMs possess inherent capabilities to generate ROS and deplete antioxidants, crucial for anticancer effects.

Conclusions:

• Engineered nanomaterials with specific physicochemical properties hold significant promise for targeted anticancer interventions.
• The selective targeting and multi-pathway cell death induction by NMs offer a promising strategy to overcome conventional therapy limitations.
• Further research into NM optimization is warranted to fully exploit their therapeutic potential in oncology.