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Targeted VEGFA therapy in regulating early acute kidney injury and late fibrosis

   
@article{APS10888,
	author = {Meng-jie Huang and Yu-wei Ji and Jian-wen Chen and Duo Li and Tian Zhou and Peng Qi and Xu Wang and Xiao-fan Li and Yi-fan Zhang and Xiang Yu and Ling-ling Wu and Xue-feng Sun and Guang-yan Cai and Xiang-mei Chen and Quan Hong and Zhe Feng},
	title = {Targeted VEGFA therapy in regulating early acute kidney injury and late fibrosis},
	journal = {Acta Pharmacologica Sinica},
	volume = {44},
	number = {9},
	year = {2023},
	keywords = {},
	abstract = {Damage to peritubular capillaries is a key process that contributes to acute kidney injury (AKI) progression. Vascular endothelial growth factor A (VEGFA) plays a critical role in maintaining the renal microvasculature. However, the physiological role of VEGFA in various AKI durations remains unclear. A severe unilateral ischemia‒reperfusion injury model was established to provide an overview of VEGFA expression and the peritubular microvascular density from acute to chronic injury in mouse kidneys. Therapeutic strategies involving early VEGFA supplementation protecting against acute injury and late anti-VEGFA treatment for fibrosis alleviation were analyzed. A proteomic analysis was conducted to determine the potential mechanism of renal fibrosis alleviation by anti-VEGFA. The results showed that two peaks of extraglomerular VEGFA expression were observed during AKI progression: one occurred at the early phase of AKI, and the other occurred during the transition to chronic kidney disease (CKD). Capillary rarefaction progressed despite the high expression of VEGFA at the CKD stage, and VEGFA was associated with interstitial fibrosis. Early VEGFA supplementation protected against renal injury by preserving microvessel structures and counteracting secondary tubular hypoxic insults, whereas late anti-VEGFA treatment attenuated renal fibrosis progression. The proteomic analysis highlighted an array of biological processes related to fibrosis alleviation by anti-VEGFA, which included regulation of supramolecular fiber organization, cell-matrix adhesion, fibroblast migration, and vasculogenesis. These findings establish the landscape of VEGFA expression and its dual roles during AKI progression, which provides the possibility for the orderly regulation of VEGFA to alleviate early acute injury and late fibrosis.},
	issn = {1745-7254},	url = {http://www.chinaphar.com/article/view/10888}
}