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Expression of HLA class I and II molecules at feto-maternal interface.
| HLA-A, -B | HLA-C | HLA-G | HLA-E | HLA-DP | HLA-DQ | HLA-DR | |
|---|---|---|---|---|---|---|---|
| Fetal tissues 1 | + | + | − | + | + | + | + |
| ST 2 | − | − | − | − | − | − | − |
| VT | − | − | − | − | − | − | − |
| EVT | − | + | + | + | − | − | − |
1 no direct contact with maternal blood and tissues. 2 direct contact with maternal blood and tissues. ST: syncytiotrophoblast; VT: villous trophoblast; EVT: extravillous trophoblast.
