Associations between mast cells and laminin in oral lichen planus

Zhao, ZZ, Savage, N and Walsh, LJ (1998) Associations between mast cells and laminin in oral lichen planus. Journal of Oral Pathology & Medicine, 27 4: 163-167.

Author Zhao, ZZ
Savage, N
Walsh, LJ
Title Associations between mast cells and laminin in oral lichen planus
Journal name Journal of Oral Pathology & Medicine   Check publisher's open access policy
ISSN 0904-2512
Publication date 1998-04-01
Year available 1998
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 27
Issue 4
Start page 163
End page 167
Total pages 5
Place of publication COPENHAGEN
Publisher MUNKSGAARD INT PUBL LTD
Language eng
Abstract Mast cell numbers are increased significantly in oral lichen planus (OLP). In other inflammatory conditions, mast cells frequently adhere to extracellular matrix proteins such as laminin. The aim of this study, therefore, was to determine whether the distribution of mast cells in OLP is related topographically to laminin in vascular and epithelial basement membranes. Monoclonal antibodies for tryptase, laminin and the alpha 6 beta 1 CD49f laminin-binding integrin were used to identify mast cells, basement membranes (blood vessels and basal epithelium) and the "classical" laminin adhesion receptor, respectively. A double-labelling immunoperoxidase technique was employed to examine and compare mast cell-laminin relationships in OLP (n=19) and normal buccal mucosa (NBM, n=13). In both OLP and NBM, the majority of mast cells were located close to vascular basement membranes. Quantitative studies revealed that the number of mast cells associated with the laminin of vascular basement membranes (distance <1 mu m) was twofold and three-fold higher, respectively, in the superficial and deep layers in OLP compared with NBM (P<0.001). The frequency distribution of mast cells associated with basal epithelium was not statistically different in both groups (P>0.05). The association of mast cells with laminin may be an important determinant of mast cell density in OLP. During OLP lesion formation and progression, the preferential distribution of mast cells in the immediate perivascular region provides an ideal situation for mast cell-derived mediators to influence the vascular endothelium.
Keyword laminin
mast cell
oral lichen planus
Extracellular-Matrix
Adhesion
Apoptosis
Expression
Integrins
Proteins
Il-3
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: ResearcherID Downloads - Archived
 
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