Cellular senescence is a state in which cells cease to divide and grow, often in response to DNA damage or other forms of cellular stress.
On one hand, senescence can prevent cancer by:
-Halting the proliferation of damaged cells, thereby preventing the accumulation of mutations that can lead to cancer
-Activating immune responses that can eliminate senescent cells.
-Producing anti-tumor factors that can inhibit the growth of nearby cancer cells.
On the other hand, senescence can also promote cancer by:
-Creating a pro-tumorigenic microenvironment that can support the growth of nearby cancer cells
-Producing pro-inflammatory factors that can promote cancer progression
-Contributing to the development of a senescence-associated secretory phenotype (SASP), which can promote cancer cell growth and metastasis.
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