Nanotherapy Against Senescence
Our bodies contain cells that, due to stress, stop dividing but remain active and can accumulate over time. These “senescent cells” contribute to aging and various diseases, including the scarring of tissues, known as fibrosis, and cancer. In the context of cancer, these cells can create an environment that suppresses the immune system, making it harder for treatments to work.
Recent advancements show that tiny engineered particles, called nanoparticles, can be designed to specifically find and attach to certain types of these senescent cells. For instance, some nanoparticles can bind to a protein called P-selectin, which is found on the surface of particular senescent cells in diseased tissues and tumors. By selectively targeting these problematic cells, these nanoparticles can help reduce fibrosis and change the environment within tumors.
This targeted approach can restore the immune system’s ability to infiltrate tumors and make them more responsive to immunotherapies, which are treatments that harness the body’s own defenses to fight cancer. This represents a promising new strategy for treating conditions like fibrosis and cancer by precisely eliminating the harmful senescent cells.
Source: link to paper