|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | |||||
Journal of Cell Science, Vol 101, Issue 3 625-633, Copyright © 1992 by Company of Biologists
JOURNAL ARTICLES |
H Asaga and K Yoshizato
Molecular Cell Science Laboratory, Faculty of Science, Hiroshima University, Japan.
The role of glycochains of cell surface glycoproteins in the cell to collagen interaction was examined by studying the effect of lectins on the fibroblast-mediated collagen gel contraction. Lectins of Phaseolus vulgaris agglutinin (PHA), concanavalin A (ConA), lentil seed agglutinin (LCA), pea agglutinin (PSA), Ricinus communis agglutinin-60 (RCA), and wheat germ agglutinin (WGA) dose-dependently inhibited gel contraction, while lectins of mushroom agglutinin (ABA), peanut agglutinin (PNA), pokeweed mitogen (PWM), and soybean agglutinin (SBA) did not. Of these lectins, PHA seemed to be worthy of further analysis, because PHA, but not other lectins, inhibited spreading of fibroblasts on collagen fibrils but not on plastic or gelatin, suggesting that cell-surface glycoproteins responsive to the lectin are involved in the specific binding of fibroblasts to native collagen fibrils. The inhibitory effect of PHA-E4, an isolectin of PHA, was more intense than that of PHA-L4, another isolectin of PHA. The collagen gel contraction was also inhibited by tunicamycin and monensin in a concentration-dependent and reversible manner. These results strongly suggest that PHA-E4-reactive glycoproteins of the fibroblast surface play an important role in cell to collagen binding during the gel contraction. Five membrane proteins including beta 1 subunits of the integrin family were obtained by affinity chromatography with PHA-E4.
This article has been cited by other articles:
![]() |
L. Taliana, M. D. M. Evans, S. D. Dimitrijevich, and J. G. Steele Vitronectin or Fibronectin Is Required for Corneal Fibroblast-Seeded Collagen Gel Contraction Invest. Ophthalmol. Vis. Sci., January 1, 2000; 41(1): 103 - 109. [Abstract] [Full Text] |
||||
![]() |
H. Wenkel, D. Kent, P. Hiscott, M. Batterbury, C. Groenewald, C. M. Sheridan, L.-G. Yu, and J. Milton Modulation of Retinal Pigment Epithelial Cell Behavior by Agaricus Bisporus Lectin Invest. Ophthalmol. Vis. Sci., November 1, 1999; 40(12): 3058 - 3062. [Abstract] [Full Text] [PDF] |
||||