Immunoadsorption with protein A in humoral rejection of kidney transplants

ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs
R PretagostiniR Cortesini

Abstract

The presence of alloantibodies may play a role in accelerated or acute humoral rejection. Different therapeutic strategies based on a removal of anti donor antibodies and prevention of their resynthesis have been used in the management of transplant rejection episodes. Immunoadsorption with staphylococcal protein A, a method to selectively remove immunoglobulin G, may represent a new treatment to reverse humoral rejection in kidney transplantation. From 1991 to January 1996, such a method was used in 23 patients in whom an acute humoral rejection developed over a mean period of 14.1 +/- 9.5 days after operation. Twenty-two patients had been transplanted from living donors and one from a cadaveric donor. The ages ranged from 23 to 58 years (mean, 34 +/- 10 years). All transplants were performed according to a negative direct crossmatch. Basic immunosuppression included cyclosporine, steroids, azathioprine, and antilymphocyte globulin or monoclonal antibodies (OKT3). Rejection was diagnosed on the basis of hematochemical tests, Doppler ultrasonography, and kidney biopsy. Only steroid and monoclonal and polyclonal antibody resistant rejections with > 165% positive direct crossmatches against the donor were treated with Protein A i...Continue Reading

Citations

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