Neubauer, Katharina and Neubauer, Bjoern and Seidl, Maximilian and Zieger, Barbara (2019) Characterization of septin expression in normal and fibrotic kidneys. CYTOSKELETON, 76 (1). pp. 143-153. ISSN 1949-3584, 1949-3592
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Chronic kidney disease (CKD) is characterized by the loss of nephrons and worsening organ-fibrosis that leads to deterioration and ultimately the total breakdown of kidney function. Renal fibrosis has become a major public health problem worldwide and necessitates hemodialysis and kidney transplantation in affected patients. CKD is mainly characterized by the activation and proliferation of interstitial fibroblasts and by excessive synthesis and accumulation of extracellular matrix components, causing the disruption of the normal tissue architecture of the kidney. Septins are GTPase proteins associated with membranes, actin filaments, and microtubules and are undoubtedly crucial for cytoskeleton organization. Although some septins are involved in liver fibrosis, they have not been investigated in the context of renal fibrosis. Here, we show that numerous septins are expressed in the healthy kidney and demonstrate in fibrotic mouse kidneys that various septins are remarkably up-regulated in the tubulointerstitium compared to contralateral control kidneys. We observed the same findings in human fibrotic kidneys. In both healthy and fibrotic kidneys, septins are coexpressed with extracellular matrix components, reinforcing the structural function of septins as cytoskeletal components. Furthermore, we could show in septin 8-deficient mice that septin 8 is dispensable for the formation of renal fibrosis, and that no other septin was compensatory changed in kidneys compared to wild-type mice.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EPITHELIAL-MESENCHYMAL TRANSITIONS; MAMMALIAN SEPTIN; FILAMENT FORMATION; HEPATIC-FIBROSIS; ACTIN-FILAMENTS; PLATELET SEPTIN; ORGANIZATION; COMPONENT; INSIGHTS; PARTNER; immunohistochemistry; kidney; renal fibrosis; septin 8 (Sept8) knockout mouse; unilateral ureteral obstruction |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Physiologie Biology, Preclinical Medicine > Institut für Physiologie > Prof. Dr. Armin Kurtz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Apr 2020 07:27 |
| Last Modified: | 21 Apr 2020 07:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27799 |
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