The innate immune system in human kidney inflammaging.
J Nephrol
; 35(2): 381-395, 2022 Mar.
Article
in English
| MEDLINE | ID: covidwho-1536386
ABSTRACT
Elderly individuals with chronic disorders tend to develop inflammaging, a condition associated with elevated levels of blood inflammatory markers, and increased susceptibility to chronic disease progression. Native and adaptive immunity are both involved in immune system senescence, kidney fibrosis and aging. The innate immune system is characterized by a limited number of receptors, constantly challenged by self and non-self stimuli. Circulating and kidney resident myeloid and lymphoid cells are all equipped with pattern recognition receptors (PRRs). Recent reports on PRRs show kidney overexpression of toll-like receptors (TLRs) in inflammaging autoimmune renal diseases, vasculitis, acute kidney injury and kidney transplant rejection. TLR upregulation leads to proinflammatory cytokine induction, fibrosis, and chronic kidney disease progression. TLR2 blockade in a murine model of renal ischemia reperfusion injury prevented the escape of natural killer cells and neutrophils by inflammaging kidney injury. Tumor necrosis factor-α blockade in endothelial cells with senescence-associated secretory phenotype significantly reduced interleukin-6 release. These findings should encourage experimental and translational clinical trials aimed at modulating renal inflammaging by native immunity blockade.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Endothelial Cells
/
Acute Kidney Injury
Type of study:
Prognostic study
Limits:
Aged
/
Animals
/
Humans
Language:
English
Journal:
J Nephrol
Journal subject:
Nephrology
Year:
2022
Document Type:
Article
Affiliation country:
S40620-021-01153-4
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