Embryonic β-Catenin Is Required for Priming of the Uterus to Implantation

Iwai, Maki; Fujiki, Yukiko; Yokomizo, Ryo; Kishigami, Harue; Miyado, Mami; Kawano, Naoki; Yamada, Mitsutoshi; Shindo, Miyuki; Suzuki, Michitaka; Sato, Ban; Katano, Daiki; Kamijo, Shintaro; Hamatani, Toshio; Tanaka, Mamoru; Umezawa, Akihiro; Kang, Woojin; Miyado, Kenji

doi:10.1016/j.labinv.2022.100026

Cited by 1 publication

(1 citation statement)

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“…CTNNB1 is a critical transcription factor involved in various cellular processes, particularly the Wnt signalling pathway ( Liu J. et al, 2022 ). Interestingly, embryonic CTNNB1 is required for priming the endometrium for implantation as well ( Takezawa et al, 2023 ). NOTCH1 is involved in Notch signalling pathway and activates genes responsible for cell proliferation, differentiation, and apoptosis.…”

Section: Discussionmentioning

confidence: 99%

Do extracellular vesicles have specific target cells?; Extracellular vesicle mediated embryo maternal communication

Dissanayake,

Godakumara,

Muhandiram

et al. 2024

Front. Mol. Biosci.

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Extracellular vesicles (EVs) serve as messengers for intercellular communication, yet the precise mechanisms by which recipient cells interpret EV messages remain incompletely understood. In this study, we explored how the origin of EVs, their protein cargo, and the recipient cell type influence the cellular response to EVs within an embryo implantation model. We treated two types of EVs to 6 different recipient cell types and expression of zinc finger protein 81 (ZNF81) gene expression in the recipient cells were quantified using quantitative polymerase chain reaction (qPCR). The proteomic contents of the EV cargos were also analyzed. The results showed that downregulation of the ZNF81 gene was a specific cellular response of receptive endometrial epithelial cells to trophoblast derived EVs. Protein cargo analysis revealed that the proteomic profile of EVs depends on their cell of origin and therefore may affect the recipient cell response to EVs. Furthermore, trophoblastic EVs were found to be specifically enriched with transcription factors such as CTNNB1 (catenin beta-1), HDAC2 (histone deacetylase 2), and NOTCH1 (neurogenic locus notch homolog protein 1), which are known regulators of ZNF81 gene expression. The current study provided compelling evidence supporting the existence of EV specificity, where the characteristics of both the EVs and the recipient cell type collectively contribute to regulating EV target specificity. Additionally, EV protein cargo analysis suggested a potential association between transcription factors and the specific functionality of trophoblastic EVs. This in vitro embryo implantation model and ZNF81 read-out provides a unique platform to study EV specific functionality in natural cell-cell communication.

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Section: Discussionmentioning

confidence: 99%