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Effect of snuff and smoking on tenascin expression in oral mucosa
Author(s) -
Luomanen Marita,
Tiitta Outi,
Heikinheimo Kristiina,
LeimolaVirtanen Riitta,
Heinaro Ilkka,
Happonen RistoPekka
Publication year - 1997
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1111/j.1600-0714.1997.tb00225.x
Subject(s) - snuff , oral mucosa , connective tissue , tenascin , pathology , epithelium , extracellular matrix , wound healing , mesenchymal stem cell , immunohistochemistry , biology , medicine , immunology , fibronectin , microbiology and biotechnology
We have shown, by using two monoclonal antibodies (143DB7 and 100EB2), that the expression of the extracellular matrix protein tenascin (Tn) is increased in the connective tissue of biopsies taken from snuff users' and tobacco smokers' oral mucosa. In normal oral mucosa Tn was, seen to underlie the epithelium as a thin delicate band. The most intense increase in Tn reaction was observed in snuff users “mucosa while the immunoreaction in smokers' mucosa was less conspicuous. Often the most prominent Tn reaction took place in association with round ceil inflammatory infiltration, indicating epithelial irritation. Tn has been shown to take part in epithelial‐mesenchymal interactions during embryogenesis wound healing and tumorigenesis. Here, a superficial epithelial irritant has been shown to cause conspicuous alterations not only in the epithelial cell layers but also in the underlying connective tissue by increasing its Tn content. As a result of our findings we suggest a further link for Tn in a dynamic epithelial‐mesenchymal interplay by virtue of this marked connective tissue reaction in snuff users” and smokers' oral mucosa.