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The Pro-Differentiation Effect of Doxycycline on Human SZ95 Sebocytes.

Dermatology. 2020 Oct 22;:1-5

Authors: Zouboulis CC, Ní Raghallaigh S, Schmitz G, Powell FC

Abstract
BACKGROUND: Despite their widespread clinical use in both acne vulgaris and rosacea, the effects of tetracyclines on sebocytes have not been investigated until now. Sebaceous glands are central to the pathogenesis of acne and may be important in the development of rosacea.
OBJECTIVE: The aim of this study was to assess the effects of doxycycline on the immortalized SZ95 sebaceous gland cell line as a model for understanding possible effectiveness on the sebaceous glands in vivo.
METHODS: The effects of doxycycline on SZ95 sebocyte numbers, viability, and lipid content as well as its effects on the mRNA levels of peroxisome proliferator-activated receptors α and γ, in comparison to the peroxisome proliferator-activated receptor γ agonist troglitazone, were investigated.
RESULTS: Doxycycline reduced the cell number and increased the lipid content of SZ95 sebocytes in vitro after 2 days of treatment. These doxycycline effects may be explained by an upregulation of peroxisome proliferator-activated receptor γ mRNA levels at 12 and 24 h, whereas troglitazone already upregulated peroxisome proliferator-activated receptor γ levels after 6 h. Both compounds did not influence peroxisome proliferator-activated receptor α mRNA levels.
CONCLUSION: These new findings illustrate a previously unknown effect of doxycycline on sebocytes, which may be relevant to their modulation of disorders of the pilosebaceous unit, such as acne vulgaris and rosacea.

PMID: 33091909 [PubMed - as supplied by publisher]

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