Response of Primed LD Typing Cells to Homozygous Typing Cells
1977
At least two different methods using cellular responses have been described for defining the determinants of the HLA-D region: typing with HLA-D homozygous cells and primed LD typing. Primed LD typing cells were generated in one-haplotype-different combinations and grouped on the basis of two or more cells appearing to define the same HLA-D-region-determined PL antigen. Such cells were restimulated with homozygous typing cells for several of the presently known HLA DW clusters. A very strong correlation was noted: PLT cells defining the antigen PL1 were restimulated with homozygous typing cells for DW3, those PLT cells defining the antigen PL2 were restimulated by homozygous typing cells for DW2, and those defining PL5 were restimulated by homozygous typing cells for DW1.
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