6533b85afe1ef96bd12b8a6b

RESEARCH PRODUCT

Expression von Tenascin, Laminin und Fibronectin nach traumatischer vorderer Kreuzbandruptur

M. Neurath

subject

Pathologymedicine.medical_specialtybiologyChemistrymedicine.drug_classAnterior cruciate ligamentTenascinmusculoskeletal systemMonoclonal antibodyPrimary and secondary antibodiesFibronectinExtracellular matrixmedicine.anatomical_structureLamininembryonic structuresmedicinebiology.proteinImmunohistochemistryOrthopedics and Sports MedicineSurgery

description

In the present study, the pattern of some extracellular matrix glycoproteins was determined in traumatic anterior cruciate ligament ruptures (n = 17) and in normal ligaments (n = 11). 6 microns cryo-sections were incubated with monoclonal antibodies recognizing tenascin, laminin, and fibronectin, and FITC-labeled secondary antibodies. Immunohistochemistry revealed that tenascin, fibronectin and laminin are sparsely distributed in normal anterior cruciate ligaments, but strongly expressed in ruptured ligaments with a time-restricted pattern. The de novo-expression of tenascin appeared before laminin but later than fibronectin. The data suggest that fibronectin and tenascin are important, partially antagonistic components during healing processes after anterior cruciate ligament ruptures.

https://doi.org/10.1055/s-2008-1040224