HLA-D typing with homozygous lymphoblastoid cell lines.

Lymphoblastoid cell lines (LCL) was established from peripheral blood lymphocytes (PBL) of 2 HLA-DW 3 homozygous siblings. HLA-D typing was performed with the homozygous LCL and PBL in a group of 51 unrelated individuals selected according to their HLA-A,B locus antigens. All the individuals who were typed positive for DW3 with PBL typing cells could also be typed positive with the LCL typing cells. Both homozygous LCL behave very similarly in the tested population. These experiments showed that the same HLA-D determinants were represented both on LCL and PBL cells and that LCL derived from MLC homozygous donors can be used for HLA-D typing.