The Role of AP-1 in Activin Signaling
Author Information
Author(s): Lee Sung-Young, Yoon Jaeho, Lee Hyun-Shik, Hwang Yoo-Seok, Cha Sang-Wook, Jeong Chul-Ho, Kim Jong-Il, Park Jae-Bong, Lee Jae-Yong, Kim SungChan, Park Mae Ja, Dong Zigang, Kim Jaebong
Primary Institution: Department of Biochemistry, College of Medicine, Hallym University, ChunCheon, Kangwon-Do, Republic of Korea
Hypothesis
What is the specific role of heterodimeric AP-1 in activin signaling during vertebrate development?
Conclusion
AP-1c-Jun/c-Fos is essential for the expression of organizer genes in response to activin signaling during early Xenopus embryogenesis.
Supporting Evidence
- Overexpression of AP-1c-Jun/c-Fos induces the expression of organizer genes.
- AP-1c-Jun/c-Fos enhances the promoter activities of activin-responsive genes.
- AP-1 is required for the expression of organizer genes mediated by activin signaling.
- AP-1c-Jun/c-Fos and Smad3 cooperatively regulate the transcription of goosecoid gene.
Takeaway
AP-1c-Jun/c-Fos helps control important genes during the early development of frogs, especially those that help form the body structure.
Methodology
The study involved embryo injections, animal cap assays, RT-PCR, and luciferase assays to analyze gene expression.
Digital Object Identifier (DOI)
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