Abstract:
:In oocyte donation (OD) pregnancies, a fetus is a complete allograft to the maternal host and OD pregnancies are an independent risk factor for preeclampsia. Immunocompetent cells contribute to spiral artery remodeling and the failure of this process could contribute to the pathophysiology of preeclampsia. Recent data have shown that impaired autophagy of extravillous trophoblasts (EVT) may induce poor vascular remodeling in preeclampsia. We have studied the distribution of T cells, NK cells and macrophages in the decidua basalis of 14 normotensive OD pregnancies, 5 preeclamptic OD cases, 16 normotensive pregnancy cases, and 13 preeclamptic cases in natural pregnancy or autologous oocyte IVF-ET (NP/IVF). The populations of decidual CD3(+)T cells, CD8(+)T cells, CD4(+)T cells, Foxp3(+)Treg cells, CD56(+)NK cells, and CD68(+) macrophages in preeclampsia were significantly smaller than those in normal pregnancy in NP/IVF. Those frequencies in normotensive OD pregnancies or preeclamptic cases in OD pregnancies were similar to those in preeclamptic cases in NP/IVF. Impaired vascular remodeling was observed in OD pregnancies, regardless of the presence or absence of preeclampsia. The expression of p62, an impaired autophagy marker in EVT of normotensive or preeclamptic OD pregnancies, was significantly higher than that in normal pregnancies in NP/IVF. Immunological change in the decidua basalis and impairment of autophagy in EVT may induce impairment of spiral artery remodeling in OD pregnancies.
journal_name
J Reprod Immunoljournal_title
Journal of reproductive immunologyauthors
Nakabayashi Y,Nakashima A,Yoshino O,Shima T,Shiozaki A,Adachi T,Nakabayashi M,Okai T,Kushima M,Saito Sdoi
10.1016/j.jri.2015.07.005subject
Has Abstractpub_date
2016-04-01 00:00:00pages
65-74eissn
0165-0378issn
1872-7603pii
S0165-0378(15)30007-3journal_volume
114pub_type
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