CITED2 is a conserved regulator of the uterine-placental interface

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 120; no. 3; p. e2213622120
• Main Authors: Kuna, Marija, Dhakal, Pramod, Iqbal, Khursheed, Dominguez, Esteban M, Kent, Lindsey N, Muto, Masanaga, Moreno-Irusta, Ayelen, Kozai, Keisuke, Varberg, Kaela M, Okae, Hiroaki, Arima, Takahiro, Sucov, Henry M, Soares, Michael J
• Format: Journal Article
• Language: English
• Published: United States National Academy of Sciences 17.01.2023
• Subjects: Animals; Aspartic acid; Biological Sciences; Cell lineage; CITED2 gene; Female; Fetuses; Gene deletion; Glutamic acid; Humans; Placenta; Placentation - genetics; Pregnancy; Rats; Repressor Proteins - genetics; Trans-Activators - genetics; Trophoblasts; Uterus; stem cells; placenta; trophoblast; CITED2; pregnancy
• DOI: 10.1073/pnas.2213622120
• ISSN: 0027-8424

Establishment of the hemochorial uterine-placental interface requires exodus of trophoblast cells from the placenta and their transformative actions on the uterus, which represent processes critical for a successful pregnancy, but are poorly understood. We examined the involvement of CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxyl-terminal domain 2 (CITED2) in rat and human trophoblast cell development. The rat and human exhibit deep hemochorial placentation. CITED2 was distinctively expressed in the junctional zone (JZ) and invasive trophoblast cells of the rat. Homozygous gene deletion resulted in placental and fetal growth restriction. Small null placentas were characterized by disruptions in the JZ, delays in intrauterine trophoblast cell invasion, and compromised plasticity. In the human placentation site, CITED2 was uniquely expressed in the extravillous trophoblast (EVT) cell column and importantly contributed to the development of the EVT cell lineage. We conclude that CITED2 is a conserved regulator of deep hemochorial placentation.