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Related Experiment Video

Updated: Aug 3, 2025

Bead Based Multiplex Assay for Analysis of Tear Cytokine Profiles

Bead Based Multiplex Assay for Analysis of Tear Cytokine Profiles

Published on: October 13, 2017

Tear proteomics in dry eye disease.

Ramaraj Kannan¹, Samayitree Das¹, Rohit Shetty²

¹GROW Research Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya Eye Hospital, Bengaluru, Karnataka, India.

Indian Journal of Ophthalmology

|April 7, 2023

Summary

Dry eye disease (DED) involves inflammation and lubrication issues. Proteomics analysis of tears reveals key protein changes, aiding in understanding DED

Keywords:

Biomarkers dry eye disease inflammation molecular markers ocular surface proteomics

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Last Updated: Aug 3, 2025

Bead Based Multiplex Assay for Analysis of Tear Cytokine Profiles

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Published on: October 13, 2017

Author Spotlight: Isolating Biomolecules from Mouse Tears — A Methodology for Molecular Analysis and Biomarker Research

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Published on: July 19, 2024

Author Spotlight: Advancing Tear Fluid Analysis Using a Standardized Protocol for Proteomics Research

Author Spotlight: Advancing Tear Fluid Analysis Using a Standardized Protocol for Proteomics Research

Published on: December 1, 2023

Area of Science:

Ophthalmology
Proteomics
Biochemistry

Background:

Dry eye disease (DED) is a complex ocular surface condition characterized by inadequate lubrication and inflammation, causing discomfort and visual disturbances.
Current treatments focus on symptom management, but the diverse underlying causes of DED remain under investigation.
Tears, a rich source of biomolecules, offer a minimally invasive window into ocular health, making them valuable for biomarker discovery.

Purpose of the Study:

To review and summarize key molecular profiles identified through proteomics studies in Dry eye disease.
To highlight how proteomics advances understanding of DED pathogenesis and its diverse etiologies.
To explore the potential of proteomics in distinguishing DED profiles associated with other systemic conditions.

Main Methods:

Utilizing mass spectrometry-based proteomics for untargeted analysis of tear samples.
Analyzing protein expression profiles in tears to identify alterations associated with DED.
Correlating proteomic findings with clinical presentations and associated comorbidities of DED.

Main Results:

Proteomics studies have identified significant changes in protein expression within the tear film of individuals with DED.
These identified protein alterations contribute to understanding the biochemical mechanisms underlying DED.
Advanced proteomics techniques enable differentiation of DED subtypes linked to conditions like Sjögren's syndrome and diabetes.

Conclusions:

Proteomics is a powerful tool for elucidating the complex pathogenesis of Dry eye disease.
Tear proteomics offers insights into the molecular basis of DED, moving beyond symptom-based treatments.
Future research can leverage these proteomic findings for improved diagnostics and targeted therapies for DED.