CHRONIC KIDNEY DISEASE: A VICARIOUS RELATION TO PREMATURE CELL SENESCENCE?
2020
Chronic kidney disease, commonly fostering non-renal complications, themselves more life-threatening than renal pathology, remain enigmatic. Despite more than a century of intense research, therapeutic options to halt or reverse renal disease are rather limited. Recently, similarity between manifestations of progressive chronic kidney disease and aging kidney has attracted investigative attention that revealed senescent cells, secreting proinflammatory and profibrotic mediators, in all renal compartments even at young age in patients with kidney maladies. The overlapping features of these categories have been noticed previously and are briefly summarized herein. I propose two hypothetical scenarios for interactive association of kidney diseases and cell senescence, both culminating in progressive deterioration of renal function. Persistence of senescent cells is considered as a critical contributor to this association and the mechanisms explaining persistence, such as activation of cell cycle regulators, anti-apoptotic stimuli, metabolic aberrations, and their interactions are discussed. The mutual encroachment of underlying kidney disease and cell senescence bring about the conclusion that both entities merge along the natural history of the disease. This putative interpretation of vicarious relation between cell senescence and chronic kidney disease may expand the arsenal of pharmacotherapy to include the judicious use of senotherapeutics in the management of renal disease.
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