Cervical mucus proteome in endometriosis

Area of Science:

• Gynecology
• Proteomics
• Biomarker Discovery

Background:

• Endometriosis is a chronic inflammatory gynecological disease affecting 7-10% of reproductive-age women.
• Current diagnosis relies on invasive laparoscopy, posing risks and high costs.
• No definitive noninvasive diagnostic biomarker for endometriosis is currently available.

Purpose of the Study:

• To characterize the cervical mucus (CM) proteome in endometriosis patients using high-resolution mass spectrometry.
• To identify potential noninvasive diagnostic biomarkers for endometriosis.
• To investigate the pathophysiological mechanisms of endometriosis through proteomic analysis.

Main Methods:

• Cervical mucus samples were collected from endometriosis patients and fertile controls.
• Proteomic analysis was performed using liquid chromatography-tandem mass spectrometry (LC-MS/MS).
• Bioinformatic tools were employed for quantitative analysis of identified proteins.

Main Results:

• A total proteome profiling of CM in endometriosis was achieved.
• Six proteins were found to be quantitatively increased in endometriosis, primarily related to inflammation.
• Nine proteins were quantitatively reduced, including those involved in innate immunity and oxidative stress protection.

Conclusions:

• This study presents the first high-resolution mass spectrometry-based proteomic analysis of CM for endometriosis.
• The identified differentially expressed proteins in CM suggest potential for noninvasive endometriosis diagnosis.
• Cervical mucus in endometriosis patients exhibits a distinct inflammatory protein pattern.