Ozenoxacin Suppresses Sebum Production by Inhibiting mTORC1 Activation in Differentiated Hamster Sebocytes

    August 2024 in “ The Journal of Dermatology
    Takamichi Kitano, Toshikazu Koiwai, Koki Fujikawa, Sachi Mori, Tatsumi Matsumoto, Takashi Sato
    TLDR Ozenoxacin reduces sebum production, helping manage acne.
    This study investigates the effects of ozenoxacin, a topical quinolone, on sebum production in acne treatment. Using insulin- and 5α-DHT-differentiated hamster sebocytes, ozenoxacin was found to inhibit lipid droplet formation and triacylglycerol production in a dose-dependent manner. It also suppressed the expression of key mRNA involved in sebum synthesis and decreased phosphorylated 40S ribosomal protein S6 levels downstream of mTORC1, without affecting Akt phosphorylation. A 2% ozenoxacin lotion reduced skin surface triacylglycerol in hamsters without altering sebaceous gland size or epidermal thickness. These findings suggest ozenoxacin's potential in controlling sebum production and microbial growth in acne management.
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