The SARS-CoV-2 receptor, angiotensin-converting enzyme 2, is required for human endometrial stromal cell decidualization†.

Biology of Reproduction
S. B. ChadchanRamakrishna Kommagani


The coronavirus disease 2019 (COVID-19) first appeared in December 2019 and rapidly spread throughout the world. The SARS-CoV-2 virus enters the host cells by binding to the angiotensin-converting enzyme 2 (ACE2). Although much of the focus is on respiratory symptoms, recent reports suggest that SARS-CoV-2 can cause pregnancy complications such as pre-term birth and miscarriages; and women with COVID-19 have had maternal vascular malperfusion and decidual arteriopathy in their placentas. Here, we report that the ACE2 protein is expressed in both endometrial epithelial and stromal cells in the proliferative phase of the menstrual cycle, and the expression increases in stromal cells in the secretory phase. It was observed that the ACE2 mRNA and protein abundance increased during primary human endometrial stromal cell (HESC) decidualization. Furthermore, HESCs transfected with ACE2-targeting siRNA impaired the full decidualization response, as evidenced by a lack of morphology change and lower expression of the decidualization markers PRL and IGFBP1. Additionally, in mice during pregnancy, the ACE2 protein was expressed in the uterine epithelial cells, and stromal cells increased through day 6 of pregnancy. Finally, progesterone i...Continue Reading


Jun 11, 1999·The New England Journal of Medicine·A J WilcoxC R Weinberg
Jul 7, 2000·Developmental Biology·D D CarsonK Yoshinaga
Jan 17, 2002·The New England Journal of Medicine·E R NorwitzS J Fisher
Nov 27, 2002·Endocrine·David C MerrillK Bridget Brosnihan
Nov 6, 2007·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Liomar A A NevesK Bridget Brosnihan
Dec 27, 2019·Endocrinology·Arin K OestreichRamakrishna Kommagani
Feb 10, 2020·Lancet·Guillaume FavreDavid Baud
May 1, 2020·JAMA : the Journal of the American Medical Association·David BaudLéo Pomar

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Jan 5, 2021·Human Genomics·Manci LiPeter A Larsen

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