Expression of Stratum Corneum Chymotryptic Enzyme in Human Sebaceous Follicles

Ekholm, Elisabeth; Sondell, Björn; Strandén, Per; Brattsand, Maria; Egelrud, Torbjörn
September 1998
Acta Dermato-Venereologica;09/01/98, Vol. 78 Issue 5, p343
Academic Journal
Stratum corneum chymotryptic enzyme (SCCE) may be involved in desquamation, a process necessary for maintaining a normal anatomy at all sites where there is continuous turnover of cornified epithelia. Using immunohistochemistry and in situ hybridization, we have, in this work, analysed SCCE expression in the sebaceous follicle. We found expression of SCCE in luminal parts of the pilary canal, common sebaceous ducts and proximal sebaceous ducts. In addition, SCCE was seen in cells apparently situated within the distal parts of the glandular lobules. Co-expression of SCCE and keratin 10 was seen only in the pilary canal and the common sebaceous ducts. The results give further support for SCCE being involved in desquamation-like processes. The association with cornification seems to be more general for SCCE than for keratin 10. The possible role of SCCE in diseases involving disturbances in the turnover of cornified cells in the sebaceous follicle, such as acne vulgaris, is a question for future studies.


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