Expression of Kindlin-1 in human hepatocellular carcinoma and its prognostic significance

Tumour Biol. 2015 Jun;36(6):4235-41. doi: 10.1007/s13277-015-3060-8. Epub 2015 Jan 16.

Abstract

Kindlin-1 is a member of the Kindlin family of focal adhesion proteins and is implicated in cell adhesion, proliferation, polarity, and motility. Although expression of Kindlin-1 has recently been reported in a variety of human cancers, studies on its expression in human hepatocellular carcinoma (HCC) are currently lacking. This study aimed to determine the clinicopathological parameters and prognostic value of Kindlin-1 in HCC patients after surgical resection. The messenger RNA (mRNA) and protein levels of Kindlin-1 in 22 matched HCC specimens were assessed by quantitative real-time PCR (qRT-PCR) and Western blotting assays. The clinical and prognostic significance of Kindlin-1 in 68 cases of HCC was determined by immunohistochemistry. Kindlin-1 expression was higher in HCC tumor tissues relative to that in adjacent normal tissue at the both mRNA and protein levels (p < 0.05). Immunohistochemical results revealed that overexpression of Kindlin-1 was detected in 37 of 68 (54.4 %) tumor tissues and in seven of 68 (10.3 %) adjacent non-tumor tissues (p < 0.05). Positive Kindlin-1 expression was significantly correlated with tumor size, tumor capsula, status of metastasis, and tumor-node-metastasis (TNM) stage. Additionally, Kaplan-Meier survival analysis showed that positive Kindlin-1 expression was associated with unfavorable overall survival (OS) and disease-free survival (DFS). Multivariate analysis identified Kindlin-1 as an independent prognostic predictor for OS and DFS in HCC patients (p = 0.041 and 0.027, respectively). Taken together, our data suggest that Kindlin-1 could play an important role in HCC and might serve as a promising prognostic marker and potential target for HCC therapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Biomarkers, Tumor / biosynthesis*
  • Biomarkers, Tumor / genetics
  • Carcinoma, Hepatocellular / genetics*
  • Carcinoma, Hepatocellular / pathology
  • Carcinoma, Hepatocellular / surgery
  • Disease-Free Survival
  • Female
  • Gene Expression Regulation, Neoplastic
  • Hepatectomy
  • Humans
  • Kaplan-Meier Estimate
  • Liver Neoplasms / genetics*
  • Liver Neoplasms / pathology
  • Liver Neoplasms / surgery
  • Male
  • Membrane Proteins / biosynthesis*
  • Membrane Proteins / genetics
  • Middle Aged
  • Neoplasm Proteins / biosynthesis*
  • Neoplasm Proteins / genetics
  • Prognosis*

Substances

  • Biomarkers, Tumor
  • FERMT1 protein, human
  • Membrane Proteins
  • Neoplasm Proteins