Targeted Therapeutics Delivery by Exploiting Biophysical Properties of Senescent Cells

衰老 细胞衰老 电穿孔 细胞生物学 细胞 生物 表型 生物化学 基因
作者
Jessalyn Low,Brian Chan,Andy Tay
出处
期刊:Advanced Functional Materials [Wiley]
卷期号:32 (2) 被引量:6
标识
DOI:10.1002/adfm.202107990
摘要

Abstract Cellular senescence refers to a state of irreversible arrest of cell proliferation in response to various forms of cellular stress. It is known that the accumulation of senescent cells is a hallmark of aging, and mounting evidence has shown that the chronic accumulation of senescent cells is a significant contributor to various deleterious age‐related pathologies. To limit the detrimental impacts of cellular senescence, there has been growing interest in targeted delivery of therapeutics to senescent cells to treat age‐related pathologies and promote healthy aging. Two popular strategies include the elimination of senescent cells using senolytic drugs, and rejuvenation of senescent cells. To that end, it is integral that the delivery of senolytics, senomorphics or rejuvenating biomolecules to senescent cells are highly selective to enhance delivery efficacy and safety. However, there is little understanding of how senescence‐associated biophysical changes such as cellular size and stiffness can be exploited for targeted therapeutics delivery. In this review, the biomolecular and biophysical markers of senescence along with senescence models and emerging therapeutics are first described. This review then focuses on how biophysical properties can be exploited for targeted therapeutics delivery, using approaches like nanoparticles, electroporation, sonoporation, photoporation and high aspect‐ratio nanostructures to senescent cells.
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