Abstract
We postulated that prostaglandin E2 (PGE2), which exhibits regulatory functions to control immune- mediated inflammation, fibrosis, oxidative stress, and tissue/ cellular regeneration, has the potential to improve the course of nephritis. Therefore, the therapeutic potential of prostanoid on established nephritis in mice was evaluated focusing on its role on renal cellular recovery, with emphasis on its cytoprotecting and growthpromoting effects. Acute nephritis was induced in mice by single injection of nephrotoxic serum (NTS), followed by PGE2 administration with severity of nephritis evaluated over time. Mice injected with PGE2 recovered promptly with normalization of blood urea nitrogen and urine protein levels and histology. Recovery was observed with dosing of prostanoid at day 1, as well as day 4. With the use of selective EP1-4 receptor agonists, EP3 receptor has been identified as important in mediating beneficial effects of PGE2 in our system. PGE2 normalized glomerular cell losses during nephrotoxic serum-induced nephritis, restored synaptopodin distribution and F-actin filaments arrangement in glomeruli. In cell culture, PGE2 reduced nephrotoxim serum (NTS)-induced apoptosis of glomerular cells and promoted cell reproliferation after NTS-mediated injury. In conclusion, PGE2 treatment promotes resolution of glomerular inflammation. Consistent with this observation, the regenerative and cytoprotective effects of prostanoid on glomerular cells in culture were observed, suggesting that PGE2 may be beneficial in the treatment of glomerulonephritis.
| Original language | English (US) |
|---|---|
| Journal | American Journal of Physiology - Renal Physiology |
| Volume | 304 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 11 2013 |
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Keywords
- Apoptosis
- NTS
- Nephritis
- PGE
- Recovery
- Synaptopodin
ASJC Scopus subject areas
- Physiology
- Urology
- Medicine(all)
Cite this
Prostaglandin E2 promotes cellular recovery from established nephrotoxic serum nephritis in mice, prosurvival, and regenerative effects on glomerular cells. / Kvirkvelia, Nino; McMenamin, Malgorzata; Chaudhary, Kapil; Bartoli, Manuela; Madaio, Michael P.
In: American Journal of Physiology - Renal Physiology, Vol. 304, No. 5, 11.03.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Prostaglandin E2 promotes cellular recovery from established nephrotoxic serum nephritis in mice, prosurvival, and regenerative effects on glomerular cells
AU - Kvirkvelia, Nino
AU - McMenamin, Malgorzata
AU - Chaudhary, Kapil
AU - Bartoli, Manuela
AU - Madaio, Michael P.
PY - 2013/3/11
Y1 - 2013/3/11
N2 - We postulated that prostaglandin E2 (PGE2), which exhibits regulatory functions to control immune- mediated inflammation, fibrosis, oxidative stress, and tissue/ cellular regeneration, has the potential to improve the course of nephritis. Therefore, the therapeutic potential of prostanoid on established nephritis in mice was evaluated focusing on its role on renal cellular recovery, with emphasis on its cytoprotecting and growthpromoting effects. Acute nephritis was induced in mice by single injection of nephrotoxic serum (NTS), followed by PGE2 administration with severity of nephritis evaluated over time. Mice injected with PGE2 recovered promptly with normalization of blood urea nitrogen and urine protein levels and histology. Recovery was observed with dosing of prostanoid at day 1, as well as day 4. With the use of selective EP1-4 receptor agonists, EP3 receptor has been identified as important in mediating beneficial effects of PGE2 in our system. PGE2 normalized glomerular cell losses during nephrotoxic serum-induced nephritis, restored synaptopodin distribution and F-actin filaments arrangement in glomeruli. In cell culture, PGE2 reduced nephrotoxim serum (NTS)-induced apoptosis of glomerular cells and promoted cell reproliferation after NTS-mediated injury. In conclusion, PGE2 treatment promotes resolution of glomerular inflammation. Consistent with this observation, the regenerative and cytoprotective effects of prostanoid on glomerular cells in culture were observed, suggesting that PGE2 may be beneficial in the treatment of glomerulonephritis.
AB - We postulated that prostaglandin E2 (PGE2), which exhibits regulatory functions to control immune- mediated inflammation, fibrosis, oxidative stress, and tissue/ cellular regeneration, has the potential to improve the course of nephritis. Therefore, the therapeutic potential of prostanoid on established nephritis in mice was evaluated focusing on its role on renal cellular recovery, with emphasis on its cytoprotecting and growthpromoting effects. Acute nephritis was induced in mice by single injection of nephrotoxic serum (NTS), followed by PGE2 administration with severity of nephritis evaluated over time. Mice injected with PGE2 recovered promptly with normalization of blood urea nitrogen and urine protein levels and histology. Recovery was observed with dosing of prostanoid at day 1, as well as day 4. With the use of selective EP1-4 receptor agonists, EP3 receptor has been identified as important in mediating beneficial effects of PGE2 in our system. PGE2 normalized glomerular cell losses during nephrotoxic serum-induced nephritis, restored synaptopodin distribution and F-actin filaments arrangement in glomeruli. In cell culture, PGE2 reduced nephrotoxim serum (NTS)-induced apoptosis of glomerular cells and promoted cell reproliferation after NTS-mediated injury. In conclusion, PGE2 treatment promotes resolution of glomerular inflammation. Consistent with this observation, the regenerative and cytoprotective effects of prostanoid on glomerular cells in culture were observed, suggesting that PGE2 may be beneficial in the treatment of glomerulonephritis.
KW - Apoptosis
KW - NTS
KW - Nephritis
KW - PGE
KW - Recovery
KW - Synaptopodin
UR - http://www.scopus.com/inward/record.url?scp=84874631711&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874631711&partnerID=8YFLogxK
U2 - 10.1152/ajprenal.00575.2012
DO - 10.1152/ajprenal.00575.2012
M3 - Article
VL - 304
JO - American Journal of Physiology
JF - American Journal of Physiology
SN - 1931-857X
IS - 5
ER -