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. Author manuscript; available in PMC: 2006 Nov 16.
Published in final edited form as: Immunol Rev. 2006 Oct;213:36–47. doi: 10.1111/j.1600-065X.2006.00436.x

Fig. 4. HLA-G protein expression related to column formation and invasion of the decidua.

Fig. 4

HLA-G5, a soluble glycoprotein, is the only isoform that is expressed in all subpopulations of trophoblast cells, including those in the villous (left), those in the column, and those forming the trophoblastic shell that attaches to the decidua. All tested isoforms appear to be expressed in the trophoblastic shell and to be maintained as the cells progress through the interstitum of the decidua and invade the spiral arteries.