NIH R01 · 2024
Chemotherapy-induced vascular cognitive impairment: role of endothelial senescence
Project Summary Many long-term survivors of cancer experience progressive chemotherapy-induced cognitive impairment (CICI, commonly referred to as "chemobrain"). Importantly, no strategies exist to prevent/reverse CICI. Chemotherapeutics do not cross the blood brain barrier and mature neurons are resistant to chemotherapeutic agents. In contrast, endothelial cells are exposed to the highest concentrations of these drugs and are highly sensitive to their effects. We discovered that chemotherapeutic drugs, including paclitaxel (PTX) induce cerebromicrovascular endothelial cells to undergo cellular senescence, a common DNA damage response. Endothelial cells play critical roles in regulation of…
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