Fetal Liver Transplantation

and allogeneic cells, sequentially. Chimerism was defined by chromosomal analysis and HLA typing. in which ene haplotype seemed to be shared betwecn the donor and the host by chance. However, defective irnrnunoglobulin productien has not yet been cerrected, The assay on T-B lymphocyte intcraction in ndtre suggested that the/ failure might be attributed to an intrinsic dafect of B lymphocytes, which were cerls of donor origin after transplantation. Three years following transplantation, the patient is free of severe infectionrp, although he requires regular injections o £ gamma・globulin.