Pubblicazioni

Autori:

Pedica, Federica; Pecori, Sara; Vergine, Marco; Brunelli, Matteo; Montagna, LICIA MARIA RITA; Pedron, Serena; C., Parolini; I., Daniele; Capelli, Paola; Menestrina, Fabio; Chilosi, Marco

Titolo:

Cathepsin-k as a diagnostic marker in the identification of micro-granulomas in Crohn's disease

Anno:

2009

Tipologia prodotto:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Lingua:

Inglese

Referee:

No

Nome rivista:

Pathologica

ISSN Rivista:

0031-2983

N° Volume:

101

Numero o Fascicolo:

3

Intervallo pagine:

109-111

Parole chiave:

Cathepsin-k; Crohn's disease; Granuloma Immunohistochemistry

Breve descrizione dei contenuti:

Crohn's disease is a chronic inflammatory bowel disease, whose aetiology and pathogenesis are still unknown. The occurrence of epithelioid granulomas is one characteristic feature of the disease since these lesions are found in the bowel wall in 50-87% of colectomy specimens. Although granulomas are not pathognomonic, their identification is considered a relevant element for diagnosis. Cathepsin-k, a papain-like cysteine protease, is involved in bone remodelling, and has been widely used as a immunohistochemical marker for the in situ detection of osteoclasts. Interestingly, the expression of this potent protease is also significantly increased in stimulated tissue macrophages, epithelioid cells and granulomas, but is not expressed in resident tissue macrophages. In the present study, we evaluated Cathepsin-k expression as a diagnostic tool in the identification of small granulomas in Crohn's disease. Formalin-fixed and paraffin-embedded samples of 10 cases of Crohn's disease were collected from surgical ileo-colic resections followed by comparison of Cathepsin-k and CD68 immunoreactivity. Granulomas were identified in 4 of 10 cases examined in haematoxylin & eosin preparations. Cathepsin-k enabled the identification of small granulomas (with a diameter between 100 and 200 �m) in 6 of 10 cases, mainly localized within the submucosa and muscular layers. When compared to CD68, Cathepsin-k immunoreactivity was generally absent or only weakly expressed in resting tissue macrophages, thus allowing better identification of activated epithelioid cells. Based on these results, Cathepsin-k appears to be a reliable tool for the precise and rapid identification of small epithelioid granulomas in Crohn's disease.

Pagina Web:

http://www.scopus.com/inward/record.url?eid=2-s2.0-70350050808&partnerID=40

Id prodotto:

55945

Handle IRIS:

11562/338857

depositato il:

22 dicembre 2009

ultima modifica:

14 novembre 2022

Citazione bibliografica:

Pedica, Federica; Pecori, Sara; Vergine, Marco; Brunelli, Matteo; Montagna, LICIA MARIA RITA; Pedron, Serena; C., Parolini; I., Daniele; Capelli, Paola; Menestrina, Fabio; Chilosi, Marco, Cathepsin-k as a diagnostic marker in the identification of micro-granulomas in Crohn's disease «Pathologica» , vol. 101 , n. 3 , 2009 , pp. 109-111

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