Active matrix metalloproteinase-8 (aMMP-8) point-of-care test (POCT) in the COVID-19 pandemic

Timo Sorsa1,2, Vaibhav Sahni3, Nurcan Buduneli4

  • 1Section of Periodontology and Dental Prevention, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Sweden.

Expert Review of Proteomics
|September 1, 2021
PubMed
Abstract

Insights

Active matrix metalloproteinase-8 (aMMP-8) point-of-care tests offer a practical method for detecting periodontal and peri-implant diseases. These noninvasive assays in mouthrinse and other oral fluids can also indicate risks for diabetes and COVID-19.

Area of Science:

  • Biomarker Discovery
  • Oral Diagnostics
  • Point-of-Care Testing

Background:

  • Active matrix metalloproteinase-8 (aMMP-8) is a key biomarker for periodontal and peri-implant diseases.
  • Host and microbial factors influence aMMP-8 levels and activation.
  • Oral fluid types (saliva, mouthrinse, GCF/PISF) impact aMMP-8 analysis.

Purpose of the Study:

  • Review recent studies on chair-side POCT lateral flow immunoassays for aMMP-8.
  • Evaluate the utility of mouthrinse and GCF/PISF assays in detecting, predicting, and monitoring periodontal and peri-implantitis.
  • Address correlations between aMMP-8 POCT and other MMP-8 activity assays.

Main Methods:

  • Review of recent literature on practical, inexpensive, noninvasive, and quantitative mouthrinse and GCF/PISF chair-side POCT lateral flow aMMP-8 immunoassays.
  • Analysis of the role of these assays in detecting, predicting, monitoring treatment, and preventing periodontitis and peri-implantitis.
  • Examination of correlations between aMMP-8 POCT and independent/catalytic activity assays of MMP-8.

Main Results:

  • Mouthrinse aMMP-8 POCT can detect prediabetes/diabetes and radiotherapy-induced oral side-effects.
  • Chlorhexidine and doxycycline inhibit collagenolytic human neutrophil and GCF aMMP-8.
  • Mouthrinse aMMP-8 POCT shows potential for real-time detection of periodontitis as a risk factor for COVID-19.

Conclusions:

  • Chair-side POCT for aMMP-8 in oral fluids is a valuable tool for managing periodontal and peri-implant diseases.
  • aMMP-8 POCT has broader applications, including detecting systemic conditions like diabetes and assessing COVID-19 risk.
  • Further interdisciplinary studies are needed to fully integrate aMMP-8 POCT into clinical practice.