KERATOCONUS CORNEAS - INCREASED GELATINOLYTIC ACTIVITY APPEARS AFTER MODIFICATION OF INHIBITORS

被引:64
作者
BROWN, D
CHWA, MM
OPBROEK, A
KENNEY, MC
机构
[1] Ophthalmology Research Laboratories, Department of Surgery, Cedars-Sinai Research Institute, Cedars-Sinai Medical Center, UCLA Medical School Affiliate, Los Angeles, CA 90048, 8700 Beverly Boulevard, Halper Building
关键词
D O I
10.3109/02713689309001835
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
We examined the metalloproteinase activity from normal and keratoconus corneal extracts. No differences were detected in the total amount of the metalloproteinase or its physical form of activation. However, there was a significant elevation in enzymatic activity in the keratoconus extracts after chemical modification of inhibitory elements. This suggests either a difference in the enzymatic capabilities of keratoconus corneas or, as suggested previously, a decrease in the amount of TIMP (tissue inhibitor of metalloproteinase) present in the tissue.
引用
收藏
页码:571 / 581
页数:11
相关论文
共 28 条
[11]  
IHALAINEN A, 1986, ACTA OPHTHALMOL S, V178, P5
[12]   INCREASED COLLAGENASE AND GELATINASE ACTIVITIES IN KERATOCONUS [J].
KAO, WWY ;
VERGNES, JP ;
EBERT, J ;
SUNDARRAJ, CV ;
BROWN, SI .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1982, 107 (03) :929-936
[13]   ALTERED GELATINOLYTIC ACTIVITY BY KERATOCONUS CORNEAL CELLS [J].
KENNEY, MC ;
CHWA, M ;
ESCOBAR, M ;
BROWN, D .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1989, 161 (01) :353-357
[14]   KERATOCONUS AND RELATED NONINFLAMMATORY CORNEAL THINNING DISORDERS [J].
KRACHMER, JH ;
FEDER, RS ;
BELIN, MW .
SURVEY OF OPHTHALMOLOGY, 1984, 28 (04) :293-322
[15]   CLEAVAGE OF STRUCTURAL PROTEINS DURING ASSEMBLY OF HEAD OF BACTERIOPHAGE-T4 [J].
LAEMMLI, UK .
NATURE, 1970, 227 (5259) :680-+
[16]  
LEDGER PW, 1983, J BIOL CHEM, V258, P547
[17]   IMMUNO-CYTOCHEMICAL LOCALIZATION OF PROCOLLAGEN AND FIBRONECTIN IN HUMAN-FIBROBLASTS - EFFECTS OF THE MONO-VALENT IONOPHORE, MONENSIN [J].
LEDGER, PW ;
UCHIDA, N ;
TANZER, ML .
JOURNAL OF CELL BIOLOGY, 1980, 87 (03) :663-671
[18]   THE MATRIX-DEGRADING METALLOPROTEINASES [J].
MATRISIAN, LM .
BIOESSAYS, 1992, 14 (07) :455-463
[19]  
MATSUBARA M, 1991, INVEST OPHTH VIS SCI, V32, P3221
[20]   DIFFERENTIAL ROLES FOR 2 GELATINOLYTIC ENZYMES OF THE MATRIX METALLOPROTEINASE FAMILY IN THE REMODELING CORNEA [J].
MATSUBARA, M ;
GIRARD, MT ;
KUBLIN, CL ;
CINTRON, C ;
FINI, ME .
DEVELOPMENTAL BIOLOGY, 1991, 147 (02) :425-439