Influence of HLA-A, HLA-B, and HLA-DR matching on rejection of random corneal grafts using corneal tissue for retrospective DNA HLA typing
Marjolijn C Bartelsa, Henderikus G Ottenb, B Elske van Gelderenc, Allegonda Van der Lelijd
a Department of
Ophthalmology, University Hospital Rotterdam, Netherlands, b Department of Medical Immunology,
University Medical Centre Utrecht, Netherlands, c Department of Ophthalmo-Immunology, The
Netherlands Ophthalmic Research Institute, Amsterdam, Netherlands, d Department
of Ophthalmology, Leiden University Medical Centre, Netherlands
Correspondence to: Dr M C Bartels, Department of Ophthalmology, University Hospital Rotterdam, PO Box 2040, 3000 CA Rotterdam, Netherlands bartels{at}oogk.azr.nl
Accepted for publication 23 May 2001
AIM
To establish if
coincidental HLA-A, HLA-B, and HLA-DR tissue matching is associated
with a reduced likelihood of corneal graft rejection.
METHODS
Organ culture
preserved random donor corneas were used for penetrating keratoplasty
(PKP). Corneal tissue from all graft recipients and donors or blood
samples from recipients after repeated transplantation were obtained in
order to perform retrospective molecular HLA typing. A group of 21 recipients with a rejection episode (cases) after corneal
transplantation was compared with a control group of non-rejectors (n = 43). 31 graft recipients were considered as high risk patients. The
influence of HLA-A, HLA-B, and HLA-DR matching on rejection free graft
survival time was analysed with Kaplan-Meyer statistics and Cox regression.
RESULTS
A prolonged
rejection free survival time was observed in graft recipients with one
or two HLA-A matches (log rank test, p = 0.034). This effect was also
observed in high risk graft recipients with one or two HLA-DR matches
(log rank test, p = 0.030).
CONCLUSIONS
Coincidental
HLA-A and HLA-DR matches were observed and associated with a prolonged
rejection free survival time in the total group and in the high risk
group, respectively. These results support the beneficial effect of
prospective HLA-A and HLA-DR typing upon corneal graft survival.
© 2001 by British Journal of Ophthalmology
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