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22 July 2021 Proteomic and functional analysis of proteins related to embryonic development of decidua in patients with recurrent pregnancy loss
Yi-Meng Xiong, Hai-Tao Pan, Hai-Gang Ding, Yao He, Juan Zhang, Feng Zhang, Bin Yu, Tao Zhang, He-Feng Huang
Author Affiliations +
Abstract

Recurrent pregnancy loss (RPL) is defined as the loss of two or more consecutive pregnancies before the 20 weeks of gestation. RPL affects about 1–2% of couples trying to conceive; however, the mechanisms leading to this complication are largely unknown. Our previous studies using comparative proteomics identified 314 differentially expressed proteins (DEPs) in the placental villous. In this study, we identified 5479 proteins from a total of 34 157 peptides in decidua of patients with early RPL (data are available via ProteomeXchange with identifier PXD023849). Further analysis identified 311 DEPs in the decidua tissue; and 159 proteins were highly expressed, whereas 152 proteins were lowly expressed. These 311 proteins were further analyzed by using Ingenuity Pathway Analysis. The results suggested that 50 DEPs played important roles in the embryonic development. Upstream analysis of these DEPs revealed that angiotensinogen was the most important upstream regulator. Furthermore, protein–protein interaction analysis of the embryonic development DEPs from the placental villous and decidua was performed in the STRING database. This study identified several proteins specifically associated with embryonic development in decidua of patients with early RPL. Therefore, these results provide new insights into potential biological mechanisms, which may ultimately inform RPL.

Summary sentence

Proteomic and functional analysis of decidua in patients with recurrent pregnancy loss.

Graphical Abstract

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© The Author(s) 2021. Published by Oxford University Press on behalf of Society for the Study of Reproduction. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com
Yi-Meng Xiong, Hai-Tao Pan, Hai-Gang Ding, Yao He, Juan Zhang, Feng Zhang, Bin Yu, Tao Zhang, and He-Feng Huang "Proteomic and functional analysis of proteins related to embryonic development of decidua in patients with recurrent pregnancy loss," Biology of Reproduction 105(5), 1246-1256, (22 July 2021). https://doi.org/10.1093/biolre/ioab140
Received: 23 February 2021; Accepted: 13 July 2021; Published: 22 July 2021
KEYWORDS
decidua
embryonic development
IPA
recurrent pregnancy loss
TMT
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