Cited by 123TGF-β signaling in diseasesDevelopmental Biology and Gene RegulationHippo pathway signaling and YAP/TAZ

Smad9 is a new type of transcriptional regulator in bone morphogenetic protein signaling

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Tsukamoto, S., Mizuta, T., Fujimoto, M., Ohte, S., Osawa, K., Miyamoto, A., Yoneyama, K., Murata, E. +4 more·2014·Scientific Reports

Abstract

Smad1, Smad5 and Smad9 (also known as Smad8) are activated by phosphorylation by bone morphogenetic protein (BMP)-bound type I receptor kinases. We examined the role of Smad1, Smad5, and Smad9 by creating constitutively active forms (Smad(DVD)). Transcriptional activity of Smad9(DVD) was lower than that of Smad1(DVD) or Smad5(DVD), even though all three Smad(DVD)s associated with Smad4 and bound to the target DNA. The linker region of Smad9 was sufficient to reduce transcriptional activity. Smad9 expression was increased by the activation of BMP signaling, similar to that of inhibitory Smads (I-Smads), and Smad9 reduced BMP activity. In contrast to I-Smads, however, Smad9 did not inhibit the type I receptor kinase and suppressed the constitutively active Smad1(DVD). Smad9 formed complexes with Smad1 and bound to DNA but suppressed the transcription of the target gene. Taken together, our findings suggest that Smad9 is a new type of transcriptional regulator in BMP signaling.

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Authors
Tsukamoto, S., Mizuta, T., Fujimoto, M., Ohte, S., Osawa, K., Miyamoto, A., Yoneyama, K., Murata, E., Machiya, A., Jimi, E., Kokabu, S., & Katagiri, T.
Affiliations
  • Saitama Medical University (JP)
  • Kyushu Dental University (JP)
Corresponding author
Katagiri, T.
Venue
Scientific Reports
Published
2014-12-23
Volume
4
Issue
1
Pages
7596-7596
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2088089995
Cited by
122
References
51
Citations by year
2026: 12 · 2025: 6 · 2024: 10 · 2023: 10 · 2022: 11 · 2021: 18 · 2020: 9 · 2019: 8 · 2018: 14 · 2017: 13 · 2016: 9 · 2015: 2
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (23390424, 25293326)
  • Japan Society for the Promotion of Science (25893228, 25670658, 24592278, 25293326, 25861339)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
Keywords
SMAD9, Smad8, Smad1, Smad5, SMAD4, BMP signaling, transcriptional regulation, inhibitory Smads, BMP signaling inhibition
MeSH terms
Animals, Cell Line, Transcription, Genetic, Signal Transduction, Bone Morphogenetic Proteins, Mice, Smad1 Protein, Smad8 Protein

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