Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy

Juha M. Holopainen, Horacio M. Serra, María C. Sánchez, Timo Sorsa, Waldir N. Zalentein, Pablo F. Barcelona, Jukka A O Moilanen, Taina Tervahartiala, Timo M T Tervo, Thamara A. Cafaro, Ismo Virtanen, Enrique A. Urrets-Zavalia, Sanjoy K Bhattacharya, Julio A. Urrets-Zavalia

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Purpose: Climatic droplet keratopathy (CDK) is an acquired corneal disease characterized by progressive scarring of the cornea. In several corneal diseases, matrix metalloproteinases (MMPs) are upregulated during the degradation of epithelial and stromal tissues. We investigated the levels, degree of activation and molecular forms of MMP-2, MMP-9, MMP-8 and MMP-13 and their tissue inhibitors TIMP-1 and TIMP-2 in tear fluid of patients with CDK. Methods: Seventeen CDK patients and 10 controls living in Argentine Patagonia received a complete eye examination, and MMPs and TIMP-1/2 were determined by immunofluorometric assay (IFMA), gelatin zymography and quantitative Western immunoblot analysis in tear samples. Results: The MMPs were detected mostly in their latent forms. The levels of MMP-9 and MMP-2 were found to be significantly elevated in CDK patients, whereas latent and active MMP-8 levels were significantly enhanced in controls. There was no significant difference in the level of MMP-13. TIMPs were found as part of complexes, and the TIMP-1 levels were significantly lower in patients than controls. Conclusion: Elevated MMP-2 and MMP-9 levels have been implicated in the failure of corneal re-epithelialization, and enhanced MMP-2 and MMP-9 levels in CDK patients suggest that these MMPs may play a role in corneal scarring in CDK. Elevated levels of MMP-8 suggest a defensive role for this MMP in inflammatory reactions associated with recurring corneal traumas. Decreased expression of TIMP-1 in CDK patients suggest deficient antiproteolytic shield likely to render the corneas of CDK patients vulnerable to enhanced MMPs. Overall, these data suggest a mechanistic link between MMPs and TIMP-1 level in cornea and tears with corneal scarring in CDK.

Original languageEnglish
Pages (from-to)569-574
Number of pages6
JournalActa Ophthalmologica
Volume89
Issue number6
DOIs
StatePublished - Sep 1 2011

Fingerprint

Matrix Metalloproteinases
Tissue Inhibitor of Metalloproteinase-1
Matrix Metalloproteinase 2
Matrix Metalloproteinase 9
Matrix Metalloproteinase 8
Tears
Cornea
Corneal Diseases
Matrix Metalloproteinase 13
Cicatrix
Tissue Inhibitor of Metalloproteinase-2
Matrix Metalloproteinase 1
Fluoroimmunoassay
Re-Epithelialization
Gelatin
Epithelium
Western Blotting

Keywords

  • climatic droplet keratopathy
  • cornea
  • matrix metalloproteinases
  • tissue inhibitors

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy. / Holopainen, Juha M.; Serra, Horacio M.; Sánchez, María C.; Sorsa, Timo; Zalentein, Waldir N.; Barcelona, Pablo F.; Moilanen, Jukka A O; Tervahartiala, Taina; Tervo, Timo M T; Cafaro, Thamara A.; Virtanen, Ismo; Urrets-Zavalia, Enrique A.; Bhattacharya, Sanjoy K; Urrets-Zavalia, Julio A.

In: Acta Ophthalmologica, Vol. 89, No. 6, 01.09.2011, p. 569-574.

Research output: Contribution to journalArticle

Holopainen, JM, Serra, HM, Sánchez, MC, Sorsa, T, Zalentein, WN, Barcelona, PF, Moilanen, JAO, Tervahartiala, T, Tervo, TMT, Cafaro, TA, Virtanen, I, Urrets-Zavalia, EA, Bhattacharya, SK & Urrets-Zavalia, JA 2011, 'Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy', Acta Ophthalmologica, vol. 89, no. 6, pp. 569-574. https://doi.org/10.1111/j.1755-3768.2009.01764.x
Holopainen, Juha M. ; Serra, Horacio M. ; Sánchez, María C. ; Sorsa, Timo ; Zalentein, Waldir N. ; Barcelona, Pablo F. ; Moilanen, Jukka A O ; Tervahartiala, Taina ; Tervo, Timo M T ; Cafaro, Thamara A. ; Virtanen, Ismo ; Urrets-Zavalia, Enrique A. ; Bhattacharya, Sanjoy K ; Urrets-Zavalia, Julio A. / Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy. In: Acta Ophthalmologica. 2011 ; Vol. 89, No. 6. pp. 569-574.
@article{b574dcf47f0243e9b56e37f68bde25ba,
title = "Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy",
abstract = "Purpose: Climatic droplet keratopathy (CDK) is an acquired corneal disease characterized by progressive scarring of the cornea. In several corneal diseases, matrix metalloproteinases (MMPs) are upregulated during the degradation of epithelial and stromal tissues. We investigated the levels, degree of activation and molecular forms of MMP-2, MMP-9, MMP-8 and MMP-13 and their tissue inhibitors TIMP-1 and TIMP-2 in tear fluid of patients with CDK. Methods: Seventeen CDK patients and 10 controls living in Argentine Patagonia received a complete eye examination, and MMPs and TIMP-1/2 were determined by immunofluorometric assay (IFMA), gelatin zymography and quantitative Western immunoblot analysis in tear samples. Results: The MMPs were detected mostly in their latent forms. The levels of MMP-9 and MMP-2 were found to be significantly elevated in CDK patients, whereas latent and active MMP-8 levels were significantly enhanced in controls. There was no significant difference in the level of MMP-13. TIMPs were found as part of complexes, and the TIMP-1 levels were significantly lower in patients than controls. Conclusion: Elevated MMP-2 and MMP-9 levels have been implicated in the failure of corneal re-epithelialization, and enhanced MMP-2 and MMP-9 levels in CDK patients suggest that these MMPs may play a role in corneal scarring in CDK. Elevated levels of MMP-8 suggest a defensive role for this MMP in inflammatory reactions associated with recurring corneal traumas. Decreased expression of TIMP-1 in CDK patients suggest deficient antiproteolytic shield likely to render the corneas of CDK patients vulnerable to enhanced MMPs. Overall, these data suggest a mechanistic link between MMPs and TIMP-1 level in cornea and tears with corneal scarring in CDK.",
keywords = "climatic droplet keratopathy, cornea, matrix metalloproteinases, tissue inhibitors",
author = "Holopainen, {Juha M.} and Serra, {Horacio M.} and S{\'a}nchez, {Mar{\'i}a C.} and Timo Sorsa and Zalentein, {Waldir N.} and Barcelona, {Pablo F.} and Moilanen, {Jukka A O} and Taina Tervahartiala and Tervo, {Timo M T} and Cafaro, {Thamara A.} and Ismo Virtanen and Urrets-Zavalia, {Enrique A.} and Bhattacharya, {Sanjoy K} and Urrets-Zavalia, {Julio A.}",
year = "2011",
month = "9",
day = "1",
doi = "10.1111/j.1755-3768.2009.01764.x",
language = "English",
volume = "89",
pages = "569--574",
journal = "Acta Ophthalmologica",
issn = "1755-375X",
publisher = "Copenhagen Scriptor",
number = "6",

}

TY - JOUR

T1 - Altered expression of matrix metalloproteinases and their tissue inhibitors as possible contributors to corneal droplet formation in climatic droplet keratopathy

AU - Holopainen, Juha M.

AU - Serra, Horacio M.

AU - Sánchez, María C.

AU - Sorsa, Timo

AU - Zalentein, Waldir N.

AU - Barcelona, Pablo F.

AU - Moilanen, Jukka A O

AU - Tervahartiala, Taina

AU - Tervo, Timo M T

AU - Cafaro, Thamara A.

AU - Virtanen, Ismo

AU - Urrets-Zavalia, Enrique A.

AU - Bhattacharya, Sanjoy K

AU - Urrets-Zavalia, Julio A.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - Purpose: Climatic droplet keratopathy (CDK) is an acquired corneal disease characterized by progressive scarring of the cornea. In several corneal diseases, matrix metalloproteinases (MMPs) are upregulated during the degradation of epithelial and stromal tissues. We investigated the levels, degree of activation and molecular forms of MMP-2, MMP-9, MMP-8 and MMP-13 and their tissue inhibitors TIMP-1 and TIMP-2 in tear fluid of patients with CDK. Methods: Seventeen CDK patients and 10 controls living in Argentine Patagonia received a complete eye examination, and MMPs and TIMP-1/2 were determined by immunofluorometric assay (IFMA), gelatin zymography and quantitative Western immunoblot analysis in tear samples. Results: The MMPs were detected mostly in their latent forms. The levels of MMP-9 and MMP-2 were found to be significantly elevated in CDK patients, whereas latent and active MMP-8 levels were significantly enhanced in controls. There was no significant difference in the level of MMP-13. TIMPs were found as part of complexes, and the TIMP-1 levels were significantly lower in patients than controls. Conclusion: Elevated MMP-2 and MMP-9 levels have been implicated in the failure of corneal re-epithelialization, and enhanced MMP-2 and MMP-9 levels in CDK patients suggest that these MMPs may play a role in corneal scarring in CDK. Elevated levels of MMP-8 suggest a defensive role for this MMP in inflammatory reactions associated with recurring corneal traumas. Decreased expression of TIMP-1 in CDK patients suggest deficient antiproteolytic shield likely to render the corneas of CDK patients vulnerable to enhanced MMPs. Overall, these data suggest a mechanistic link between MMPs and TIMP-1 level in cornea and tears with corneal scarring in CDK.

AB - Purpose: Climatic droplet keratopathy (CDK) is an acquired corneal disease characterized by progressive scarring of the cornea. In several corneal diseases, matrix metalloproteinases (MMPs) are upregulated during the degradation of epithelial and stromal tissues. We investigated the levels, degree of activation and molecular forms of MMP-2, MMP-9, MMP-8 and MMP-13 and their tissue inhibitors TIMP-1 and TIMP-2 in tear fluid of patients with CDK. Methods: Seventeen CDK patients and 10 controls living in Argentine Patagonia received a complete eye examination, and MMPs and TIMP-1/2 were determined by immunofluorometric assay (IFMA), gelatin zymography and quantitative Western immunoblot analysis in tear samples. Results: The MMPs were detected mostly in their latent forms. The levels of MMP-9 and MMP-2 were found to be significantly elevated in CDK patients, whereas latent and active MMP-8 levels were significantly enhanced in controls. There was no significant difference in the level of MMP-13. TIMPs were found as part of complexes, and the TIMP-1 levels were significantly lower in patients than controls. Conclusion: Elevated MMP-2 and MMP-9 levels have been implicated in the failure of corneal re-epithelialization, and enhanced MMP-2 and MMP-9 levels in CDK patients suggest that these MMPs may play a role in corneal scarring in CDK. Elevated levels of MMP-8 suggest a defensive role for this MMP in inflammatory reactions associated with recurring corneal traumas. Decreased expression of TIMP-1 in CDK patients suggest deficient antiproteolytic shield likely to render the corneas of CDK patients vulnerable to enhanced MMPs. Overall, these data suggest a mechanistic link between MMPs and TIMP-1 level in cornea and tears with corneal scarring in CDK.

KW - climatic droplet keratopathy

KW - cornea

KW - matrix metalloproteinases

KW - tissue inhibitors

UR - http://www.scopus.com/inward/record.url?scp=80052099884&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052099884&partnerID=8YFLogxK

U2 - 10.1111/j.1755-3768.2009.01764.x

DO - 10.1111/j.1755-3768.2009.01764.x

M3 - Article

C2 - 19900203

AN - SCOPUS:80052099884

VL - 89

SP - 569

EP - 574

JO - Acta Ophthalmologica

JF - Acta Ophthalmologica

SN - 1755-375X

IS - 6

ER -