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Isolation of Primary Mouse Trophoblast Cells and Trophoblast Invasion Assay
Published on: January 8, 2012
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Plac1 Expression Pattern at the Mouse Fetomaternal Interface and Involvement in Trophoblast Differentiation
Yanli Gu1, Junhui Wan2, Lv Yao1
1Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China.
Summary
Placenta-specific gene 1 (Plac1) is crucial for mouse trophoblast differentiation. Its knockdown significantly impairs differentiation, highlighting its essential role in placental development.
Area of Science:
- Developmental Biology
- Genetics
- Reproductive Biology
Background:
- Plac1 is a known placenta-specific gene.
- Its precise expression pattern and function at the mouse fetomaternal interface are not fully understood.
Purpose of the Study:
- To elucidate the spatiotemporal expression of Plac1 at the mouse fetomaternal interface.
- To investigate the role of Plac1 in trophoblast differentiation and placentation.
Main Methods:
- In situ hybridization (ISH) for Plac1 mRNA localization.
- Trophoblast stem cell (TS) differentiation model using Plac1 shRNA lentivirus.
- Real-time RT-PCR for gene expression analysis.
Main Results:
- Plac1 mRNA was detected in the ectoplacental cone and early embryos (8.5-9.5 dpc).
- Expression was prominent in spongiotrophoblast and labyrinth layers until 13.5 dpc, decreasing thereafter.
- Plac1 knockdown significantly inhibited TS differentiation, indicating its necessity for normal trophoblast development.
Conclusions:
- Plac1 is widely expressed in trophoblast subtypes, excluding primary trophoblast giant cells.
- Plac1 is essential for normal trophoblast differentiation into various subpopulations.
- This study clarifies Plac1's role in placental development.
