Detection of mitochondrial biomarkers in eutopic endometria of endometriosis using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry

Fertil Steril. 2010 Dec;94(7):2528-30. doi: 10.1016/j.fertnstert.2010.04.054.

Abstract

Objectives: To detect specific mitochondrial proteins in eutopic endometrial samples from women with and without endometriosis and to build diagnostic models.

Design: Eutopic endometrial samples from women with endometriosis (excluding adenomyosis) and women with benign indications as control were studied by using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry protein-chip technology. After finding the biomarkers, the diagnostic model was evaluated and validated by leave-one cross-validation.

Setting: Collaborative investigation in an academic research environment.

Patient(s): Twenty-four patients with endometriosis (excluding adenomyosis) and 29 patients with benign indications as control.

Intervention(s): Surgical excision of eutopic endometrial biopsy of patients with endometriosis and controls.

Main outcome measure(s): Mitochondrial protein expression.

Result(s): Seventy-eight qualified mitochondrial protein peaks were detected, ten of them had a significant difference. Three combined potential biomarkers, with mass-to-charge ratios (m/z) of 15,334, 15,128, and 16,069, were found, and the diagnostic system distinguished endometriosis from control samples with a specificity of 86.2% and a sensitivity of 87.5%.

Conclusion(s): We discovered potential mitochondrial biomarkers of eutopic endometrium in endometriosis and set up a diagnostic model. Further identification of the proteins we found will help to explain pathology, new diagnoses, and therapeutic approaches for endometriosis.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Biomarkers / analysis*
  • Biomarkers / metabolism
  • Case-Control Studies
  • Diagnostic Techniques, Obstetrical and Gynecological
  • Endometriosis / diagnosis
  • Endometriosis / metabolism*
  • Endometriosis / pathology
  • Endometrium / chemistry*
  • Endometrium / metabolism
  • Endometrium / pathology
  • Female
  • Humans
  • Mitochondria / chemistry*
  • Mitochondria / metabolism
  • Mitochondrial Proteins / analysis
  • Mitochondrial Proteins / metabolism
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods*
  • Uterine Diseases / diagnosis
  • Uterine Diseases / metabolism*
  • Uterine Diseases / pathology

Substances

  • Biomarkers
  • Mitochondrial Proteins