Evidence map›Paper›PMID 30444057›Full record

ArticleCell proliferation2019

TGF-β1 promotes gap junctions formation in chondrocytes via Smad3/Smad4 signalling.

Qingxuan Wang, Chenchen Zhou, Xiaobing Li, Linyi Cai, Jing Zou, Demao Zhang, Jing Xie, Wenli Lai

Open access · hybridAbstract read
In one paragraph

Article in Cell proliferation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  13. SMAD4 contributes to chondrocyte and osteocyte development.Journal of cellular and molecular medicine · 2022
    Review
  14. Article
  15. Article
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  18. Review
  19. [Metformin inhibits collagen production in rat biliary fibroblasts: the molecular signaling mechanism].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2020
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Qingxuan WangState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Chenchen ZhouState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Xiaobing LiState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Linyi CaiState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Jing ZouState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Demao ZhangState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Jing XieState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.ORCID http://orcid.org/0000-0001-8156-0322
Wenli LaiState Key Laboratory of Oral Diseases, Orthodontics Department, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Sichuan University · CN

Funding

National Natural Science Foundation of China 81600840National Natural Science Foundation of China 81771047
6 · The paper itself

Abstract

objectivesConnexin-mediated functional gap junction intercellular communication (GJIC) has a vital role in development, homeostasis and pathology. Transforming growth factor-β1 (TGF-β1), as one of the most vital factors in chondrocytes, promotes cartilage precursor cell differentiation and chondrocyte proliferation, migration and metabolism. However, how TGF-β1 mediates GJIC in chondrocytes remains unclear. This study aims to determine the influence of TGF-β1 on GJIC in mouse chondrocytes and its underlying mechanism.

methodsqPCR and mRNA microarray were used to verify the expression of genes in the TGF-β and connexin families in cartilage and chondrocytes. A scrape loading/dye transfer assay was performed to explore GJIC. Western blot analysis was used to detect connexin43 (Cx43) and Smad signalling components. Immunofluorescence staining was performed to characterize protein distribution.

resultsThe TGF-β1 mRNA was the highest expressed member of the TGFβ super family in cartilage. TGF-β1 promoted functional GJIC through increased expression of Cx43. TGF-β1-mediated GJIC required the participation of TGF-β type I receptor. TGF-β1 activated Smad3 and Smad4 signalling to facilitate their nuclear translocation. The Smad3 and Smad4 signalling proteins bound to the promoter of Gja1 and thus initiated Cx43 gene expression.

conclusionsFor the first time, these results revealed a vital role of TGF-β1 in cell-cell communication in chondrocytes via gap junction formation. We describe the regulatory mechanism, the involvement of TGF-β type I receptor and the nuclear translocation of Smad3/4.

Indexed as

Signal TransductionAnimalsCells, CulturedChondrocytesGap JunctionsMice, Inbred C57BLSmad3 ProteinSmad4 ProteinTransforming Growth Factor beta1Smad3 ProteinSmad3 protein, mouseSmad4 ProteinSMAD4 protein, humanTransforming Growth Factor beta1chondrocyteconnexin43GJICSmad3Smad4TGF-β1

Identifiers

PMID30444057
PMCPMC6495951
OpenAlexW2900718719

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.