Cited by 15TGF-β signaling in diseasesChronic Kidney Disease and DiabetesRenal Diseases and Glomerulopathies

TBX3, a downstream target of TGF-β1, inhibits mesangial cell apoptosis

Wensing, Lislaine A., Campos, Alexandre H.·2014·Experimental Cell Research

Abstract

Chronic kidney disease (CKD) is an increasingly common condition characterized by progressive loss of functional nephrons leading to renal failure. TGF-β1-induced mesangial cell (MC) phenotype alterations have been linked to the genesis of CKD. Here we show that TGF-β1 regulates TBX3 gene expression in MC. This gene encodes for two main isoforms, TBX3.1 and TBX3+2α. TBX3.1 has been implicated in cell immortalization, proliferation and apoptosis by inhibiting p14(ARF)-Mdm2-p53 pathway, while TBX3+2α role has not been defined. We demonstrated that TBX3 overexpression abrogated MC apoptosis induced by serum deprivation. Moreover, we observed an enhancement in TBX3 protein expression both in glomerular and tubular regions in the model of 5/6 nephrectomy, temporally related to increased expression of TGF-β1, type IV collagen and fibronectin. Our results indicate that TBX3 acts as an anti-apoptotic factor in MC in vitro and may be involved in the mechanism by which TGF-β1 induces glomerulosclerosis and tubular fibrosis during the progression of nephropathies.

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Crossref · 10.1016/j.yexcr.2014.08.022

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  • TBX3 functions primarily as a transcriptional repressor and initial reports suggested that it can promote proliferation by repressing the cell cycle regulators p14/p19ARF and p21.

    “TBX3 functions primarily as a transcriptional repressor and initial reports suggested that it can promote proliferation by repressing the cell cycle regulators p14/p19ARF and p21 [60–62].”

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Authors
Wensing, L. A., & Campos, A. H.
Affiliations
  • Universidade de São Paulo (BR)
  • Hospital Israelita Albert Einstein (BR)
Venue
Experimental Cell Research
Publisher
Elsevier BV
Published
2014-11
Volume
328
Issue
2
Pages
340-350
ISSN
0014-4827 (ISSN-L)
OpenAlex
W2021304773
Cited by
15
References
60
Citations by year
2025: 1 · 2023: 3 · 2020: 1 · 2019: 5 · 2018: 2 · 2017: 2 · 2015: 1
FWCI
0.41
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Cell Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundação de Amparo a Pesquisa do Estado de São Paulo (#07/02864-1)
  • SBIB Albert Einstein
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Nephrology › Chronic Kidney Disease and Diabetes
  • Health Sciences › Medicine › Nephrology › Renal Diseases and Glomerulopathies
Keywords
TBX3, TGF-β1, mesangial cells, apoptosis, chronic kidney disease, glomerulosclerosis, tubular fibrosis, 5/6 nephrectomy, serum deprivation, type IV collagen, fibronectin, anti-apoptotic factors
MeSH terms
Cells, Cultured, Fibronectins, Fibrosis, Humans, Gene Expression, Apoptosis, Protein Isoforms, T-Box Domain Proteins, Collagen Type IV, Cell Proliferation, Mesangial Cells, Transforming Growth Factor beta1

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