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| Content Provider | PubMed Central |
|---|---|
| Author | Chen, Li Zhou, Xia Fan, Lucy X. Yao, Ying Swenson-fields, Katherine I. Gadjeva, Mihaela Wallace, Darren P. Peters, Dorien J. M. Yu, Alan Grantham, Jared J. Li, Xiaogang |
| Copyright Year | 2015 |
| Abstract | Autosomal dominant polycystic kidney disease (ADPKD) is characterized by renal cyst formation, inflammation, and fibrosis. Macrophages infiltrate cystic kidneys, but the role of these and other inflammatory factors in disease progression are poorly understood. Here, we identified macrophage migration inhibitory factor (MIF) as an important regulator of cyst growth in ADPKD. MIF was upregulated in cyst-lining epithelial cells in polycystin-1–deficient murine kidneys and accumulated in cyst fluid of human ADPKD kidneys. MIF promoted cystic epithelial cell proliferation by activating ERK, mTOR, and Rb/E2F pathways and by increasing glucose uptake and ATP production, which inhibited AMP-activated protein kinase signaling. MIF also regulated cystic renal epithelial cell apoptosis through p53-dependent signaling. In polycystin-1–deficient mice, MIF was required for recruitment and retention of renal macrophages, which promoted cyst expansion, and Mif deletion or pharmacologic inhibition delayed cyst growth in multiple murine ADPKD models. MIF-dependent macrophage recruitment was associated with upregulation of monocyte chemotactic protein 1 (MCP-1) and inflammatory cytokine TNF-α. TNF-α induced MIF expression, and MIF subsequently exacerbated TNF-α expression in renal epithelial cells, suggesting a positive feedback loop between TNF-α and MIF during cyst development. Our study indicates MIF is a central and upstream regulator of ADPKD pathogenesis and provides a rationale for further exploration of MIF as a therapeutic target for ADPKD. |
| Related Links | http://dx.doi.org/10.1172/jci80467 |
| Ending Page | 2412 |
| Page Count | 14 |
| Starting Page | 2399 |
| File Format | |
| ISSN | 00219738 |
| e-ISSN | 15588238 |
| Journal | The Journal of Clinical Investigation |
| Issue Number | 6 |
| Volume Number | 125 |
| Language | English |
| Publisher | American Society for Clinical Investigation |
| Publisher Date | 2015-06-01 |
| Access Restriction | Open |
| Rights Holder | American Society for Clinical Investigation |
| Subject Keyword | Medicine(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine |
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