Antioxidant role of autophagy in maintaining the integrity of glomerular capillaries

Jun Matsuda, Tomoko Namba, Yoshitsugu Takabatake, Tomonori Kimura, Atsushi Takahashi, Takeshi Yamamoto, Satoshi Minami, Shinsuke Sakai, Ryuta Fujimura, Jun-Ya Kaimori, Isao Matsui, Takayuki Hamano, Yoko Fukushima, Keiko Matsui, Tomoyoshi Soga & Yoshitaka Isaka
Autophagy is a lysosomal degradation system by which cytosolic materials and damaged organelles are broken down into basic components. To explore the physiological role of autophagy in glomerular endothelial cells (GEnCs), we compared the autophagic flux among cells in the kidney under starvation. Inhibition of autophagy by chloroquine administration significantly increased the number of autophagosomes or autolysosomes in GEnCs and proximal tubular cells, but not in podocytes, suggesting that the GEnCs exhibit substantial autophagic activity....
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