Nanovesicle (Mis)Communication in Senescence-Related Pathologies | Abstract

Asian Journal of Pharmaceutical Technology and Innovation (ajpti)

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Nanovesicle (Mis)Communication in Senescence-Related Pathologies


Sherin Saheera

Extracellular vesicles are a heterogeneous group of cell-derived membranous structures comprising of exosomes, apoptotic bodies, and microvesicles. Of the extracellular vesicles, exosomes are the most widely sorted and extensively explored for their contents and function. The size of the nanovesicular structures (exosomes) range from 30 to 140 nm and are present in various biological fluids such as saliva, plasma, urine etc. These cargo-laden extracellular vesicles arise from endosome-derived multivesicular bodies and are known to carry proteins and nucleic acids. Exosomes are involved in multiple physiological and pathological processes, including cellular senescence. Exosomes mediate signaling crosstalk and play a critical role in cell–cell communications. Exosomes have evolved as potential biomarkers for aging-related diseases. Aging, a physiological process, involves a progressive decline of function of organs with a loss of homeostasis and increasing probability of illness and death. The age-associated changes in exosomes and their composition have detrimental effects leading to the development of various pathologies.  Owing to their ability to transport biological information among cells, the interplay of senescent cell-derived exosomes with other cells accelerate the  aging process, including the susceptibility of the aging population to COVID-19 infections. The varied nature of the molecules packaged and delivered by exosomes makes it a valuable biomarker for identifying and tracking disease progression and aging. Understanding the relation of aging process to age-related diseases is of great clinical importance for the development of novel therapeutic strategies.

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