We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Extrahepatic C6 is as effective as hepatic C6 in the generation of renal C5b-9 complexes.
- Authors
Timmerman, Janneke J.; van Dixhoorn, Mieneke G.A.; Schraa, Edo O.; Van Gijlswijk-Janssen, Dani ëlle J.; Muizert, Yvonne; Van Es, Leendert A.; Daha, Mohamed R.
- Abstract
In order to study the contribution of extrahepatic C6 to anti-Thy1.1 nephritis, C6 deficient PVG/c- livers were grafted in C6 sufficient PVG/c+ rats (Tx-L). Infusion of anti-Thy1.1 antibodies in Tx-L and PVG/c+ rats resulted in generation of C5b-y complexes and subsequent glomerular injury, while infusion of anti-Thy1.1 antibodies in PVG/c- rats revealed no detectable C6 deposition. Because C6 mRNA was expressed in both liver and kidney tissue of PVG/c+ rats, we assessed whether production of C6 in the kidney alone was sufficient for glomerular injury. One kidney of a PVG/c– rat was replaced with a PVG/c+ kidney (Tx+K) followed by administration of anti-Thy1.1 antibodies. C6 deposits were detectable neither in PVG/c+ kidneys nor in PVG/c- kidneys of Tx+K rats, indicating that C6 production in PVG/c+ kidneys alone is not sufficient to contribute to renal injury. That C6 production had occurred was suggested by the presence of equal amounts C6 mRNA in control PVG/c+ kidneys and in grafted PVG/c+ kidneys of Tx+K rats. C6 mRNA expression in kidney tissue of PVG/c+ rats is presumably derived from peritubular sites. In conclusion, we have demonstrated that extrahepatic, but not renal synthesis of, C6 is sufficient to contribute to glomerular injury during anti-Tbyl.l nephritis.
- Subjects
ABDOMEN; URINARY organs; IMMUNOGLOBULINS; KIDNEY diseases; LIVER; BLOOD proteins
- Publication
Kidney International, 1997, Vol 51, Issue 6, p1788
- ISSN
0085-2538
- Publication type
Article
- DOI
10.1038/ki.1997.246