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Transforming Growth Factor Beta-Induced Factor 2-Linked X (TGIF2LX) Regulates Two Morphogenesis Genes, Nir1 and Nir2

Gholam Reza Mobini1, Mohammad Hossein Ghahremani2, Saeid Amanpour3

  • 1Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Acta Medica Iranica
|June 17, 2016
PubMed

Insights

This study investigated the TGIF2LX gene's function in colorectal cancer. TGIF2LX influences Nir1 and Nir2 gene expression, which are involved in cell morphogenesis, offering new insights into cancer development.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • The TGIF2LX protein, a homeodomain member, is recognized for its role as a tumor suppressor in human cancers and in spermatogenesis.
  • Dynamic functional evidence for TGIF2LX has been limited, necessitating further investigation into its molecular mechanisms.

Purpose of the Study:

  • To identify human TGIF2LX target genes using complementary DNA-amplification fragment length polymorphism (cDNA-AFLP).
  • To elucidate the functional role of TGIF2LX in colorectal cancer by examining its impact on gene expression.

Main Methods:

  • Stable transfection of SW48 cells with a pEGFP-TGIF2LX construct.
  • Confirmation of TGIF2LX expression using UV microscopy and quantitative real-time reverse transcription PCR (RT-PCR).
  • Differential gene expression analysis using cDNA-AFLP and validation with real-time PCR.

Main Results:

  • TGIF2LX significantly down-regulated Nir1 gene expression.
  • TGIF2LX significantly up-regulated Nir2 gene expression.
  • Both Nir1 and Nir2 genes are implicated in the cell morphogenesis process.

Conclusions:

  • TGIF2LX modulates the expression of Nir1 and Nir2, key genes in cell morphogenesis.
  • These findings contribute to understanding the molecular pathways involved in colorectal cancer progression.
  • The study provides novel functional insights into TGIF2LX as a regulator in human malignancy.
Keywords:
Colorectal cancerTGIF2LXTarget genesTranscription factorTumor suppressorcDNA-AFLP

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