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Original Article
Volume 328:745-749 March 18, 1993 Number 11
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Chimerism after Liver Transplantation for Type IV Glycogen Storage Disease and Type 1 Gaucher's Disease
Thomas E. Starzl, Anthony J. Demetris, Massimo Trucco, Camillo Ricordi, Suzanne Ildstad, Paul I. Terasaki, Noriko Murase, Ross S. Kendall, Mirjana Kocova, William A. Rudert, Adriana Zeevi, and David Van Thiel

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ABSTRACT

Background Liver transplantation for type IV glycogen storage disease (branching-enzyme deficiency) results in the resorption of extrahepatic deposits of amylopectin, but the mechanism of resorption is not known.

Methods We studied two patients with type IV glycogen storage disease 37 and 91 months after liver transplantation and a third patient with lysosomal glucocerebrosidase deficiency (type 1 Gaucher's disease), in whom tissue glucocerebroside deposition had decreased 26 months after liver replacement, to determine whether the migration of cells from the allograft (microchimerism) could explain the improved metabolism of enzyme-deficient tissues in the recipient. Samples of blood and biopsy specimens of the skin, lymph nodes, heart, bone marrow, or intestine were examined immunocytochemically with the use of donor-specific monoclonal anti-HLA antibodies and the polymerase chain reaction, with preliminary amplification specific to donor alleles of the gene for the beta chain of HLA-DR molecules, followed by hybridization with allele-specific oligonucleotide probes.

Results Histopathological examination revealed that the cardiac deposits of amylopectin in the patients with glycogen storage disease and the lymph-node deposits of glucocerebroside in the patient with Gaucher's disease were dramatically reduced after transplantation. Immunocytochemical analysis showed cells containing the HLA phenotypes of the donor in the heart and skin of the patients with glycogen storage disease and in the lymph nodes, but not the skin, of the patient with Gaucher's disease. Polymerase-chain-reaction analysis demonstrated donor HLA-DR DNA in the heart of both patients with glycogen storage disease, in the skin of one of them, and in the skin, intestine, blood, and bone marrow of the patient with Gaucher's disease.

Conclusions Systemic microchimerism occurs after liver allotransplantation and can ameliorate pancellular enzyme deficiencies.


Source Information

From the Pittsburgh Transplant Institute and the Departments of Surgery (T.E.S., C.R., S.I., N.M., A.Z., D.V.T.), Pathology (A.J.D., M.T., A.Z.), Pediatrics (M.T., M.K., W.A.R.), and Medicine (D.V.T.), University of Pittsburgh Health Science Center, Pittsburgh; UCLA Tissue Typing Laboratory, Los Angeles (P.I.T.); and the Mary Bridge Children's Hospital, Tacoma, Wash. (R.S.K.).

Address reprint requests to Dr. Starzl at the Department of Surgery, 3601 Fifth Ave., 5C Falk Clinic, University of Pittsburgh, Pittsburgh, PA 15213.

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