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Updated: Jun 21, 2026
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Bead Based Multiplex Assay for Analysis of Tear Cytokine Profiles
Published on: October 13, 2017
[The tear proteomics analysis of conjunctivochalasis]
Xing-ru Zhang1, Min-hong Xiang, Qing-qing Wu
1Department of Ophthalmology, the Affiliated Putuo Hospita of Shanghai Chinese Traditional Medicine University, Shanghai 200062, China. zhangxingru928@hotmail.com
Summary
Shotgun proteomics reveals distinct tear proteins in conjunctivochalasis, including inflammatory and apoptosis-related proteins. This finding offers new insights into the pathogenesis of this eye condition.
Area of Science:
- Proteomics
- Ophthalmology
- Biochemistry
Context:
- Conjunctivochalasis is a common ocular surface disease.
- Understanding its pathogenesis is crucial for effective treatment.
- Tear film analysis offers a non-invasive window into ocular surface health.
Purpose:
- To analyze tear proteins using a shotgun proteomics strategy.
- To investigate the pathogenesis of conjunctivochalasis by comparing tear protein profiles between patients and normal controls.
Summary:
- Tear samples from 8 conjunctivochalasis patients and 8 controls were analyzed using shotgun proteomics (trypsin digestion, RP-HPLC, ESI-MS/MS).
- 356 proteins were identified in patients and 352 in controls, with 119 common proteins.
- Conjunctivochalasis tears uniquely contained apoptosis-related proteins, inflammatory response proteins, and defensin, absent in controls.
Impact:
- Shotgun proteomics provides an effective method for analyzing tear protein components in conjunctivochalasis.
- The identified unique proteins suggest that conjunctivochalasis may be associated with cellular apoptosis and inflammation.
- This research opens new avenues for understanding and potentially treating conjunctivochalasis.
