A short course of high‐dose cyclophosphamide induces long‐term survival of intestinal allografts in mice

Several transplant programs have recently added cyclophosphamide (CyP) to their immune suppression protocols in an attempt to reduce intestinal graft rejection rates. The present study was undertaken to confirm the benefits of this drug in a murine small bowel transplant model. A short course of mon...

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Veröffentlicht in:Transplant international 2001-08, Vol.14 (4), p.261-265
Hauptverfasser: Kellersmann, R., Zhong, R., Kellersmann, A., Kiyochi, H., Garcia, B., Grant, D. R., Gao, Z. H.
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container_issue 4
container_start_page 261
container_title Transplant international
container_volume 14
creator Kellersmann, R.
Zhong, R.
Kellersmann, A.
Kiyochi, H.
Garcia, B.
Grant, D. R.
Gao, Z. H.
description Several transplant programs have recently added cyclophosphamide (CyP) to their immune suppression protocols in an attempt to reduce intestinal graft rejection rates. The present study was undertaken to confirm the benefits of this drug in a murine small bowel transplant model. A short course of monotherapy with CyP 20 mg/kg per dose resulted in a mean survival time (MST) of 17.5 ± 3.6 days, compared with a MST of 7.5 ± 0.7 days in the untreated controls (p < 0.01). Cyclosporin A (CsA) 30 mg/kg per day produced comparable survival rates when used as monotherapy (MST: 14.2 ± 1.3 days) or in combination with CyP 20 mg/kg per dose (MST: 21.3 ± 5.1 days). Treatment with high dose CyP (40 mg/kg per dose) completely prevented graft loss in 8 of 10 animals (MST: 72.5 ± 5.3 days, p < 0.01). However, adding CsA abrogated the induction of long‐term survival achieved by CyP alone (MST: 23 ± 0.4 days). These data have important implications for the use of CyP in clinical transplantation.
doi_str_mv 10.1111/j.1432-2277.2001.tb00055.x
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R.</creatorcontrib><creatorcontrib>Gao, Z. H.</creatorcontrib><title>A short course of high‐dose cyclophosphamide induces long‐term survival of intestinal allografts in mice</title><title>Transplant international</title><addtitle>Transpl Int</addtitle><description>Several transplant programs have recently added cyclophosphamide (CyP) to their immune suppression protocols in an attempt to reduce intestinal graft rejection rates. The present study was undertaken to confirm the benefits of this drug in a murine small bowel transplant model. A short course of monotherapy with CyP 20 mg/kg per dose resulted in a mean survival time (MST) of 17.5 ± 3.6 days, compared with a MST of 7.5 ± 0.7 days in the untreated controls (p &lt; 0.01). Cyclosporin A (CsA) 30 mg/kg per day produced comparable survival rates when used as monotherapy (MST: 14.2 ± 1.3 days) or in combination with CyP 20 mg/kg per dose (MST: 21.3 ± 5.1 days). Treatment with high dose CyP (40 mg/kg per dose) completely prevented graft loss in 8 of 10 animals (MST: 72.5 ± 5.3 days, p &lt; 0.01). However, adding CsA abrogated the induction of long‐term survival achieved by CyP alone (MST: 23 ± 0.4 days). These data have important implications for the use of CyP in clinical transplantation.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Cyclophosphamide</subject><subject>Cyclophosphamide - therapeutic use</subject><subject>Cyclosporine - therapeutic use</subject><subject>Graft Rejection</subject><subject>Graft Survival - drug effects</subject><subject>Graft vs Host Disease - prevention &amp; control</subject><subject>Immunomodulators</subject><subject>Immunosuppression</subject><subject>Immunosuppressive Agents - therapeutic use</subject><subject>Intestine, Small - transplantation</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Mice</subject><subject>Mice, Inbred BALB C</subject><subject>Mice, Inbred C57BL</subject><subject>Mice, Inbred CBA</subject><subject>Pharmacology. 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source MEDLINE; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Springer Nature - Complete Springer Journals
subjects Animals
Biological and medical sciences
Cyclophosphamide
Cyclophosphamide - therapeutic use
Cyclosporine - therapeutic use
Graft Rejection
Graft Survival - drug effects
Graft vs Host Disease - prevention & control
Immunomodulators
Immunosuppression
Immunosuppressive Agents - therapeutic use
Intestine, Small - transplantation
Male
Medical sciences
Mice
Mice, Inbred BALB C
Mice, Inbred C57BL
Mice, Inbred CBA
Pharmacology. Drug treatments
Rejection
Small bowel transplantation
Transplantation, Homologous
title A short course of high‐dose cyclophosphamide induces long‐term survival of intestinal allografts in mice
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