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Proteolytic enzymes in salivary extravasation mucoceles
Author(s) -
Azuma Masayuki,
Tamatani Tetsuya,
Fukui Kazuhiro,
Yuki Tokuyuki,
Hoque Mohammad Obaidul,
Yoshida Hideo,
Sato Mitsunobu
Publication year - 1995
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.1600-0714.1995.tb01188.x
Subject(s) - extravasation , collagenase , myoepithelial cell , saliva , proteolytic enzymes , pathology , zymography , salivary gland , staining , chemistry , casein , immunohistochemistry , medicine , matrix metalloproteinase , enzyme , biochemistry
We examined the content of type IV collagenases and plasminogen activators (PAs) in luminal fluid of four extravasation mucoceles by means of gelatin or casein zymography. Immunohistochemical staining for type IV collagenases and PAs was performed to identify the possible source of these enzymes. The luminal fluid examined by gelatin zymography showed a high level of type IV collagenases compared with saliva from Wharton's duct. PAs were detected in only one of the cases by casein zymography, and none was detected in the saliva. By immunohistochemical staining, type IV collagenases and PAs were detected in duct and myoepithelial cells of the adjacent salivary gland and in macrophages and fibro‐blasts of the cyst wall. The results suggest that proteolytic enzymes are involved in the pathogenesis of mucoceles.