Unknown

Dataset Information

0

Activation of liver X receptor inhibits osteopontin and ameliorates diabetic nephropathy.


ABSTRACT: Osteopontin is a proinflammatory cytokine and monocyte chemoattractant implicated in the pathogenesis of diabetic nephropathy. Synthetic agonists for liver X receptors (LXRs) suppress the expression of proinflammatory genes, including osteopontin, but whether LXR activation modulates diabetic nephropathy is unknown. We administered the LXR agonist T0901317 to mice with streptozotocin-induced diabetes and evaluated its effects on diabetic nephropathy. The LXR agonist decreased urinary albumin excretion without altering blood glucose levels and substantially attenuated macrophage infiltration, mesangial matrix accumulation, and interstitial fibrosis. LXR activation suppressed the gene expression of inflammatory mediators, including osteopontin, in the kidney cortex. In vitro, LXR activation suppressed osteopontin expression in proximal tubular epithelial cells by inhibiting AP-1-dependent transcriptional activation of the osteopontin promoter. Taken together, these results suggest that inhibition of renal osteopontin by LXR agonists may have therapeutic potential for diabetic nephropathy.

SUBMITTER: Tachibana H 

PROVIDER: S-EPMC3482729 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

altmetric image

Publications

Activation of liver X receptor inhibits osteopontin and ameliorates diabetic nephropathy.

Tachibana Hiromi H   Ogawa Daisuke D   Matsushita Yuichi Y   Bruemmer Dennis D   Wada Jun J   Teshigawara Sanae S   Eguchi Jun J   Sato-Horiguchi Chikage C   Uchida Haruhito Adam HA   Shikata Kenichi K   Makino Hirofumi H  

Journal of the American Society of Nephrology : JASN 20121018 11


Osteopontin is a proinflammatory cytokine and monocyte chemoattractant implicated in the pathogenesis of diabetic nephropathy. Synthetic agonists for liver X receptors (LXRs) suppress the expression of proinflammatory genes, including osteopontin, but whether LXR activation modulates diabetic nephropathy is unknown. We administered the LXR agonist T0901317 to mice with streptozotocin-induced diabetes and evaluated its effects on diabetic nephropathy. The LXR agonist decreased urinary albumin exc  ...[more]

Similar Datasets

| S-EPMC2844813 | biostudies-other
| S-EPMC8027848 | biostudies-literature
| S-EPMC4483240 | biostudies-literature
| S-EPMC3964498 | biostudies-literature
| S-EPMC5370123 | biostudies-literature
| S-EPMC2451047 | biostudies-other
| S-EPMC5875945 | biostudies-literature
| S-EPMC3294315 | biostudies-literature
| S-EPMC3965443 | biostudies-literature
| S-EPMC7445481 | biostudies-literature