Genes (Apr 2022)

Oncogenic Role of Connective Tissue Growth Factor Is Associated with Canonical TGF-β Cascade in Colorectal Cancer

  • Shaghayegh Hosseini,
  • Leili Rejali,
  • Zahra Pezeshkian,
  • Mahtash Malekian,
  • Nayeralsadat Fatemi,
  • Noshad Peyravian,
  • Mahrooyeh Hadizadeh,
  • Zhaleh Mohsenifar,
  • Binazir Khanabadi,
  • Maral Farzam,
  • Ghazal Sherkat,
  • Hamid Asadzadeh Aghdaei,
  • Ehsan Nazemalhosseini Mojarad,
  • Maziar Ashrafian Bonab

DOI
https://doi.org/10.3390/genes13040689
Journal volume & issue
Vol. 13, no. 4
p. 689

Abstract

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TGF-β signaling pathways promote tumour development and control several downstream genes such as CTGF and MMPs. This study aimed to investigate the association between CTGF and MMP-1 mRNA expressions with clinicopathological status and survival rate in colorectal cancer patients. We investigated expression levels of CTGF and MMP-1 genes in paraffin-embedded tumours and adjacent normal tissue blocks (ADJ) by Real Time-PCR. Then, the expression of Smad2 and Smad4 proteins in the TGF-β canonical pathway was evaluated by immunohistochemistry. Finally, the correlation between CTGF, MMP-1, and the canonical TGF-β-signalling pathway with the clinicopathological features was investigated. Expression levels of MMP-1and CTGF were higher in tumours compared with adjacent normal tissues. Overexpression levels of MMP-1 and CTGF were associated with lymph node metastasis, distant metastasis, tumour histopathological grading, advanced stage, and poor survival (p p < 0.0001). This study showed that canonical TGF-β signalling regulates both CTGF and MMP-1 expression and CRC progression. Moreover, TGF-β signalling and its downstream genes could be used as novel biomarkers and novel approaches for targeted therapy in CRC.

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