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Updated: Apr 20, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
DACT1 is involved in human placenta development by promoting Wnt signaling
Jian Hou1, Yu-Hua Wen, Kang-Ni Feng
1Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Institute of Public Health, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.
DACT1 expression increases during human placenta development and is positively associated with Wnt signaling pathway target genes, suggesting a role in placental growth.
Area of Science:
- Developmental biology
- Molecular biology
- Genetics
Background:
- The Wnt signaling pathway is crucial for embryonic development.
- DACT1 (Dishevelled associated antagonist of 1) is a key regulator in Wnt signaling.
- Understanding DACT1's role in human placenta development is important.
Purpose of the Study:
- To investigate DACT1 expression in human placenta.
- To determine the relationship between DACT1 and Wnt signaling pathway target genes.
Main Methods:
- Human placenta tissues from different gestational ages were analyzed.
- Real-time PCR and Western blotting were used to quantify gene and protein expression.
- Statistical analysis was performed to assess correlations.
Main Results:
- DACT1 expression significantly increased in later stages of placenta development.
- mRNA and protein levels of Wnt target genes (CCND1, CCND2, FOSL1, DAB2, JUN) were elevated.
- DACT1 showed significant positive associations with these Wnt target genes.
Conclusions:
- DACT1 expression is upregulated during human placenta development.
- DACT1 likely promotes human placenta development by activating the Wnt signaling pathway.
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