Pigment epithelium-derived factor expression in colorectal cancer patients

Cancer Invest. 2010 Oct;28(8):872-7. doi: 10.3109/07357901003735675.

Abstract

Pigment epithelium-derived factor (PEDF) is a potent inhibitor of angiogenesis and has been proposed to be a tumor suppressor in a variety of tumors. Limited reports exist of PEDF in colorectal cancer (CRC). We noted a 55% lower plasma level (p < .001) of PEDF in the CRC patient group (1.6 μg/mL) than in of a healthy control group (3.6 μg/mL). A single nucleotide polymorphism (rs1136287, T>C) was screened. In the control group, the CC genotype showed 30% lower PEDF plasma levels compared with the TT genotype (p < .01), whereas the CRC patients failed to show any association regarding these genotypes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Substitution
  • Angiogenesis Inhibitors / genetics
  • Colorectal Neoplasms / blood
  • Colorectal Neoplasms / genetics*
  • Colorectal Neoplasms / metabolism
  • DNA, Neoplasm / genetics
  • DNA, Neoplasm / isolation & purification
  • Enzyme-Linked Immunosorbent Assay
  • Eye Proteins / blood
  • Eye Proteins / genetics*
  • Eye Proteins / metabolism
  • Genotype
  • Humans
  • Interleukin-6 / blood
  • Methionine / genetics
  • Nerve Growth Factors / blood
  • Nerve Growth Factors / genetics*
  • Nerve Growth Factors / metabolism
  • Polymorphism, Single Nucleotide*
  • Protease Inhibitors / blood
  • Reference Values
  • Serpins / blood
  • Serpins / genetics*
  • Serpins / metabolism
  • Threonine / genetics

Substances

  • Angiogenesis Inhibitors
  • DNA, Neoplasm
  • Eye Proteins
  • Interleukin-6
  • Nerve Growth Factors
  • Protease Inhibitors
  • Serpins
  • pigment epithelium-derived factor
  • Threonine
  • Methionine