Photodynamic Therapy: Targeting Tumors with Oxidative Stress #shorts

Añadido: 2026-05-16

[00:00:00]Tumor cells, due to their higher basal ROS levels compared to normal cells, normal tissues, are more vulnerable to oxidative stress-induced cell death. Traditional anti-tumor therapies, such as radiotherapy and chemotherapy, partly leverage this vulnerability by increasing ROS levels, although this is not their primary mechanism of action. Photodynamic therapy, a more targeted approach, induces ROS through photochemical reactions leading to cancer cell death via pathways like apoptosis, paraptosis, and necroptosis. We're going to talk about photodynamic therapy at length as part of this oxidative therapy series.

[00:00:34]Achieving selective tumor cell death while minimizing damage to normal tissues remains a key challenge. Here, we explore potential of existing non-cancer drugs to selectively target redox mechanisms to modulate ROS levels and exert anti-tumor effects despite these actions not being their primary pharmacologic purpose.