Minuth, Will W. and Denk, Lucia and Glashauser, Anne (2010) Cell and drug delivery therapeutics for controlled renal parenchyma regeneration. ADVANCED DRUG DELIVERY REVIEWS, 62 (7-8). pp. 841-854. ISSN 0169-409X
Full text not available from this repository. (Request a copy)Abstract
In regenerative medicine much attention is given to stem/progenitor cells for a future therapy of acute and chronic renal failure. However, up to date sound cell biological knowledge about nephron renewal in kidney is lacking. For that reason molecular mechanisms are under intense investigation leading from stem/progenitor cells to regenerated tubules. In this coherence new biomaterials and drug delivery systems have to be elaborated showing an intense stimulation on the renewal of parenchyma. To analyze tubule regeneration a powerful culture system is of fundamental importance. An advanced technique stimulates renal stem/progenitor cells to develop numerous tubules between layers of a polyester fleece. Use of chemically defined Iscove's Modified Dulbecco's Medium (IMDM) containing aldosterone (1 x 10(-7) M) results in spatial development of renal tubules within 13 days of perfusion culture. Immunohistochemistry exhibits that numerous features of a polarized epithelium are expressed in generated tubules. Transmission electron microscopy (TEM) illuminates that generated tubules contain a polarized epithelium with a tight junctional complex and an intact basal lamina at the basal aspect. Development of tubules depends on applied aldosterone concentration and cannot be mimicked by precursors of its synthesis pathway or by other steroid hormones. Antagonists such as spironolactone or canrenoate prevent the development of tubules. This result illuminates that the tubulogenic development is mediated via the mineralocorticoid receptor (MR). Application of geldanamycin, radicicol, quercetin or KNK 437 in combination with aldosterone blocks development of tubules by disturbing the contact between MR and heat shock proteins 90 and 70. In conclusion, for the first time generation of renal tubules can be simulated under controlled in-vitro conditions. Using this model the effect of numerous innovative biomaterials and drug delivery system can be critically analyzed. (C) 2010 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ARTIFICIAL INTERSTITIUM; CULTURE; TUBULES; DIFFERENTIATION; RECEPTOR; TUBULOGENESIS; MORPHOGENESIS; INHIBITION; EXPRESSION; GENERATION; Kidney; Stem/progenitor cells; Tubules; Aldosterone; Perfusion culture; Artificial interstitium; Biomaterial; Drug delivery |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Anatomie > Lehrstuhl für Molekulare und zelluläre Anatomie > Prof. Dr. Will Minuth |
| Depositing User: | Petra Gürster |
| Date Deposited: | 16 Apr 2020 08:20 |
| Last Modified: | 16 Apr 2020 08:20 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24557 |
Actions (login required)
 |
View Item |
