Transgenic overexpression of the secreted, extracellular EGF-CUB domain-containing protein SCUBE3 induces cardiac hypertrophy in mice

Hsin Yu Yang, Ching Feng Cheng, Bambang Djoko, Wei Shiung Lian, Cheng Fen Tu, Ming Tzu Tsai, Yen Hui Chen, Chien Chang Chen, Chien Jui Cheng, Ruey Bing Yang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Objective: The aim of this study was to investigate in a transgenic animal model the cardiac expression and function of a novel extracellular protein SCUBE3 [signal peptide-CUB (complement proteins C1r/C1s, Uegf, and Bmp1)-EGF (epidermal growth factor)-like domain-containing protein 3]. Methods and results: Real-time quantitative reverse transcriptase (RT)-PCR analysis showed that SCUBE3 is expressed in the ventricular myocardium. Male transgenic (TG) mice overexpressing SCUBE3 appeared normal during development, from birth to adulthood. However, echocardiography and histopathological examination revealed significant cardiac hypertrophy in TG animals as they aged, at 8 months. Interestingly, left-ventricle hypertrophy occurred more rapidly and more severely under pressure overload in TG mice, as compared to age-matched wild-type littermates. Induced SCUBE3 expression, together with elevated transforming growth factor (TGF)-β1 level under pressure overload, may account for the accelerated onset and progression of cardiac hypertrophy in TG mice. Furthermore, biochemical and molecular studies revealed that the carboxyl-terminal portion of SCUBE3 could physically interact with TGF-β1 and promote the TGF-β1-mediated transcriptional activation. Conclusion: This report is the first demonstration that SCUBE3 may play a role in the regulation of cardiac growth and remodeling responses, possibly through the stabilization of the TGF-β1 signaling pathway.

Original languageEnglish
Pages (from-to)139-147
Number of pages9
JournalCardiovascular Research
Volume75
Issue number1
DOIs
Publication statusPublished - Jul 1 2007

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Cardiomegaly
Transforming Growth Factors
Epidermal Growth Factor
Transgenic Mice
Genetically Modified Animals
Complement C1r
Pressure
Protein Sorting Signals
Reverse Transcriptase Polymerase Chain Reaction
Hypertrophy
Transcriptional Activation
Heart Ventricles
Echocardiography
Myocardium
Complement System Proteins
Animal Models
Parturition
Protein Domains
Growth
Proteins

Keywords

  • Echocardiography
  • Extracellular matrix
  • Hypertrophy
  • Myocytes
  • Transgenic animal models

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Transgenic overexpression of the secreted, extracellular EGF-CUB domain-containing protein SCUBE3 induces cardiac hypertrophy in mice. / Yang, Hsin Yu; Cheng, Ching Feng; Djoko, Bambang; Lian, Wei Shiung; Tu, Cheng Fen; Tsai, Ming Tzu; Chen, Yen Hui; Chen, Chien Chang; Cheng, Chien Jui; Yang, Ruey Bing.

In: Cardiovascular Research, Vol. 75, No. 1, 01.07.2007, p. 139-147.

Research output: Contribution to journalArticle

Yang, Hsin Yu ; Cheng, Ching Feng ; Djoko, Bambang ; Lian, Wei Shiung ; Tu, Cheng Fen ; Tsai, Ming Tzu ; Chen, Yen Hui ; Chen, Chien Chang ; Cheng, Chien Jui ; Yang, Ruey Bing. / Transgenic overexpression of the secreted, extracellular EGF-CUB domain-containing protein SCUBE3 induces cardiac hypertrophy in mice. In: Cardiovascular Research. 2007 ; Vol. 75, No. 1. pp. 139-147.
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AU - Tsai, Ming Tzu

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