PMID- 9652825 OWN - NLM STAT- MEDLINE DCOM- 19980730 LR - 20190818 IS - 0300-9475 (Print) IS - 0300-9475 (Linking) VI - 47 IP - 6 DP - 1998 Jun TI - Immunoglobulin prolongs survival of pig kidneys perfused ex vivo with human blood. PG - 568-74 AB - Intravenous immunoglobulin (IVIG) (Octagam), was used to determine the effect on hyperacute rejection in an ex vivo xenograft model. Six pig kidneys were perfused with IVIG and fresh human AB blood, and six control pig kidneys were simultaneously perfused with albumin and blood from the same donation. The survival of the IVIG-perfused xenografts (median, 6.5 h) was significantly (P = 0.03) longer than the albumin-perfused xenografts (median, 3.5 h). Complement was activated in both groups. The administration of IVIG to the perfused blood resulted in immediate and significantly higher complement activation in the fluid phase as compared with the albumin group. At rejection the fluid phase complement activation was higher in the IVIG group than in the albumin group for C1rs/C1inh complexes, C4bc, Bb and TCC. At the time of rejection both the albumin and the IVIG group demonstrated interstitial tubular haemorrhage, vasculitis or necrosis of glomerular capillaries and glomerular microthrombi. IgM, C1q, C3c, C4 and fibrin were located in arteries and glomeruli and IgG in the interstitium in both groups at rejection. The fluid phase findings are consistent with a modulatory effect of IVIG on complement activation by deviating the classical pathway activation towards the fluid phase. The prolonged survival of the IVIG-perfused kidneys suggests that IVIG may be useful to dampen hyperacute rejection. FAU - Fiane, A E AU - Fiane AE AD - Department of Surgery A, University of Oslo, The National Hospital, Norway. FAU - Videm, V AU - Videm V FAU - Mellbye, O J AU - Mellbye OJ FAU - Foerster, A AU - Foerster A FAU - Geiran, O R AU - Geiran OR FAU - Gladhaug, I P AU - Gladhaug IP FAU - Svennevig, J L AU - Svennevig JL FAU - Mollnes, T E AU - Mollnes TE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Scand J Immunol JT - Scandinavian journal of immunology JID - 0323767 RN - 0 (Immunoglobulins, Intravenous) RN - 0 (Peptide Fragments) RN - 80295-43-8 (Complement C3b) RN - 80295-50-7 (Complement C4b) RN - EC 3.4.21.41 (Complement C1r) RN - EC 3.4.21.42 (Complement C1s) RN - EC 3.4.21.47 (Complement C3 Convertase, Alternative Pathway) SB - IM MH - Animals MH - *Blood MH - Complement Activation MH - Complement C1r/metabolism MH - Complement C1s/metabolism MH - Complement C3 Convertase, Alternative Pathway MH - Complement C3b/metabolism MH - Complement C4b/metabolism MH - Female MH - *Graft Survival MH - Humans MH - Immunoglobulins, Intravenous/*pharmacology MH - In Vitro Techniques MH - Kidney Transplantation/*immunology MH - Male MH - Models, Biological MH - Peptide Fragments/metabolism MH - Perfusion MH - Swine MH - Transplantation, Heterologous EDAT- 1998/07/04 00:00 MHDA- 1998/07/04 00:01 CRDT- 1998/07/04 00:00 PHST- 1998/07/04 00:00 [pubmed] PHST- 1998/07/04 00:01 [medline] PHST- 1998/07/04 00:00 [entrez] AID - 10.1046/j.1365-3083.1998.00341.x [doi] PST - ppublish SO - Scand J Immunol. 1998 Jun;47(6):568-74. doi: 10.1046/j.1365-3083.1998.00341.x.