HLA-G and autoimmune pancreatitis: Therefore, we here analyzed the localization of CCN3, p16, p21, and Cyclin D1 in STB and EVT cells of early preeclamptic and late AIP placentas, those pathological placentas which already revealed differences in the expression on mRNA and protein level (see above), with a focus on EVT cells characterized by HLA-G+ which were deeply invaded into the decidua.