Detection of highly abundant small molecules in the stratum corneum of healthy young women using desorption electrospray ionization-mass spectrometry imaging

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  • Waliullah A.S.M.
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Sakamoto Takumi
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Uchiyama Tomoya
    KOSÉ Corporation Research Laboratories
  • Itai Eriko
    KOSÉ Corporation Research Laboratories
  • Naru Eiji
    KOSÉ Corporation Research Laboratories
  • Inomata Ken
    KOSÉ Corporation Research Laboratories
  • Mamun Md. Al
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Hasan Md. Mahmudul
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Fukui Reimu
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Sato Tomohito
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine International Mass Imaging Center, Hamamatsu University School of Medicine
  • Takahashi Yutaka
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine
  • Honda Tetsuya
    Department of Dermatology, Hamamatsu University School of Medicine
  • Kahyo Tomoaki
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine International Mass Imaging Center, Hamamatsu University School of Medicine
  • Setou Mitsutoshi
    Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine International Mass Imaging Center, Hamamatsu University School of Medicine Department of Systems Molecular Anatomy, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center

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<p>Aging reflects skin appearance drastically, which reduces skin juvenescence. However, the small molecules underlying skin juvenescence have not been well studied. We aimed to explore the molecules potentially responsible for young-looking skin. Eleven healthy women aged 24–59 years were recruited and divided into young and middle-aged groups. Multiple layers of the stratum corneum from the cheek area were taken by tape-stripping, followed by desorption electrospray ionization mass spectrometry imaging (DESI-MSI). Overall, five molecules (m/z 284.33, 340.39, 488.39, 628.37, and 863.65) were highly abundant in young subjects. Among them, m/z 284.33 and 340.39 were dominantly detected in each layer of all young subjects. Interestingly, m/z 488.39 and 628.37 were prominent in young subject 4. All of these molecules were gradually decreased in the successive layers of the stratum corneum in subjects 3 and 4 of the young group. These molecules could be endogenous, co-related with youthful skin, or retained from topical cosmetics. Extensive research is indispensable to characterize them and find the relationship between these molecule’s retention capacity in the stratum corneum with different skin parameters. Our findings provide a novel perspective on young skin that could be advantageous in future cosmetic formulations to improve skin juvenescence.</p>

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  • Medical Mass Spectrometry

    Medical Mass Spectrometry 7 (1), 26-34, 2023-06-25

    一般社団法人 日本医用マススペクトル学会

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