Permanent rat cardiac allograft survival induced by ultraviolet B-irradiated donor lymphocytes and peritransplant cyclosporine

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Surgery; (United States)

OSTI ID:7071923

Oluwole, S F; Fawwaz, R A; Reemtsma, K; Hardy, M A

This study examines the effect of pretreatment with 10(8) ultraviolet B-irradiated donor leukocytes (UV-DL) with or without peritransplant cyclosporine (CyA) treatment (20 mg/kg on days 0, +1, and +2 relative to transplantation) on rat cardiac allograft survival across major histocompatibility loci. A single UV-DL pretreatment on day -3 or -7 (before transplantation) significantly prolonged survival of heart allografts from Wistar-Furth rats (W/F) in Lewis recipients from 6.8 +/- 0.8 days to 18.4 +/- 2.1 and 17.6 +/- 1.5 days (p less than 0.001), respectively. Multiple UV-DL infusions on days -14 and -7 increased the mean survival time to 20.0 +/- 0.9 days (p less than 0.001). Similarly, UV-DL infusion on day -3 or -7 significantly prolonged the mean survival time of heart allografts from ACI rats in Lewis rats. A single or multiple UV-DL infusions combined with peritransplant CyA led specifically to permanent W/F cardiac allograft survival (more than 200 days) in all recipients. Similarly, UV-DL infusion combined with peritransplant CyA led to indefinite survival of ACI cardiac allografts in two thirds of Lewis recipients. Adoptive transfer of splenocytes from long-term recipients of cardiac allografts, which specifically prolonged donor test grafts in syngeneic hosts, suggests that unresponsiveness to cardiac allografts is, in part, dependent on suppressor cells. This study emphasizes the importance of UV irradiation of DLs in the modulation of alloreactivity and the induction of donor-specific unresponsiveness in adult animals.

• Research Organization: Columbia Univ. College of Physicians and Surgeons, New York, NY (USA)
• OSTI ID: 7071923
• Journal Information: Surgery; (United States), Journal Name: Surgery; (United States) Vol. 104:2; ISSN SURGA
• Country of Publication: United States
• Language: English

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560120* -- Radiation Effects on Biochemicals
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL CELLS
ANIMALS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CARDIOVASCULAR SYSTEM
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LEUKOCYTES
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ORGANS
RADIATIONS
RADIOINDUCTION
RATS
RODENTS
SOMATIC CELLS
SPLEEN
SURVIVAL CURVES
TRANSPLANTS
ULTRAVIOLET RADIATION
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