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Titolo:
Graft survival in a rhesus renal transplant model after immunotoxin-mediated T-cell depletion is enhanced by mycophenolate and steroids
Autore:
Fechner, JH; Dong, YC; Hong, XN; Brunner, KG; Tsuchida, M; Neville, D; Scharff, J; Lee, F; Oberley, TD; Peters, D; Schultz, JM; Manthei, ER; Hamawy, MM; Knechtle, SJ;
Indirizzi:
Univ Wisconsin, Dept Surg, Madison, WI 53792 USA Univ Wisconsin Madison WI USA 53792 sin, Dept Surg, Madison, WI 53792 USA Univ Wisconsin, Dept Radiol, Madison, WI 53792 USA Univ Wisconsin MadisonWI USA 53792 n, Dept Radiol, Madison, WI 53792 USA Univ Wisconsin, Dept Pathol, Madison, WI 53792 USA Univ Wisconsin MadisonWI USA 53792 n, Dept Pathol, Madison, WI 53792 USA NIMH, Mol Biol Lab, Bethesda, MD 20892 USA NIMH Bethesda MD USA 20892NIMH, Mol Biol Lab, Bethesda, MD 20892 USA
Titolo Testata:
TRANSPLANTATION
fascicolo: 4, volume: 72, anno: 2001,
pagine: 581 - 587
SICI:
0041-1337(20010827)72:4<581:GSIARR>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONOCLONAL-ANTIBODIES; IMMUNOSUPPRESSIVE ACTIVITY; WORKING CLASSIFICATION; ALLOGRAFT REJECTION; NONHUMAN-PRIMATES; TOLERANCE; LYMPHOCYTES; ANTI-CD3-IMMUNOTOXIN; MONKEYS; PERITRANSPLANT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Knechtle, SJ Room H4-784 CSC,600 Highland Ave, Madison, WI 53792 USA RoomH4-784 CSC,600 Highland Ave Madison WI USA 53792 92 USA
Citazione:
J.H. Fechner et al., "Graft survival in a rhesus renal transplant model after immunotoxin-mediated T-cell depletion is enhanced by mycophenolate and steroids", TRANSPLANT, 72(4), 2001, pp. 581-587

Abstract

Background. Anti-CD3 immunotoxin (IT), a T-cell-depleting agent, prolongs survival of renal allografts in a rhesus monkey model without the need for longterm immunosuppression. In this study we sought to further prolong allograft survival by giving short-term conventional immunosuppression. simultaneous with IT administration. Methods. MHC class II mismatched, juvenile rhesus monkeys were paired as donor and recipient for renal transplantation. Recipients received two to three daily doses of IT starting on the day of transplantation. Additional immunosuppression was given for no more than 60 days. Graft function was monitored by serum creatinine and renal biopsies. Flow cytometry was used to monitor T-cell recovery. Results. Graft survival time (GST) in animals receiving IT was prolonged compared with controls with 50% of IT-treated monkeys surviving > 100 days. Animals treated with IT plus mycophenolate mofetil (MMF) and steroids had significantly enhanced GST (mean GST, 305 days) compared with those treated with IT alone (mean GST, 94 days). In contrast, addition of cyclosporine or40-O-[2-Hydroxyethyl]rapamycin did not significantly increase graft survival time. A comparison among animals from all treatment groups with short (<100 days) and long (> 100 days) GST demonstrated that those with the shorter GST had a higher blood T-cell count 2 weeks after transplantation. Full recovery of CD4(+) T cells required longer than 6 months. Conclusions. A combination with MMF and steroids given for 4 days after renal allograft transplantation significantly increases GST in IT-treated monkeys. We hypothesize that MMF and steroids suppress the initial T-cell activation mediated by IT.

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Documento generato il 28/01/20 alle ore 14:41:06