Toxicological Research

  • 제34권2호
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  • Pages.103-110
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  • 2018
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  • 1976-8257(pISSN)
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  • 2234-2753(eISSN)
한국독성학회 (Korean Society of Toxicology & Korea Environmental Mutagen Society)
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Effects of 7-MEGATM 500 on Oxidative Stress, Inflammation, and Skin Regeneration in H2O2-Treated Skin Cells

  • Song, In-Bong (Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University) ;
  • Gu, Hyejung (Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University) ;
  • Han, Hye-Ju (Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University) ;
  • Lee, Na-Young (R&D Team, Food & Supplement Health Claims) ;
  • Cha, Ji-Yun (R&D Team, Food & Supplement Health Claims) ;
  • Son, Yeon-Kyong (R&D Team, Food & Supplement Health Claims) ;
  • Kwon, Jungkee (Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University)
  • 투고 : 2017.11.14
  • 심사 : 2018.02.21
  • 발행 : 2018.04.15
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초록

Environmental stimuli can lead to the excessive accumulation of reactive oxygen species (ROS), which is one of the risk factors for premature skin aging. Here, we investigated the protective effects of $7-MEGA^{TM}$ 500 (50% palmitoleic acid, 7-MEGA) against oxidative stress-induced cellular damage and its underlying therapeutic mechanisms in the HaCaT human skin keratinocyte cell line (HaCaT cells). Our results showed that treatment with 7-MEGA prior to hydrogen peroxide ($H_2O_2$)-induced damage significantly increased the viability of HaCaT cells. 7-MEGA effectively attenuated generation of $H_2O_2$-induced reactive oxygen species (ROS), and inhibited $H_2O_2$-induced inflammatory factors, such as prostaglandin $E_2$ ($PGE_2$), tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$), and $interleukin-1{\beta}$ ($IL-1{\beta}$). In addition, cells treated with 7-MEGA exhibited significantly decreased expression of matrix metalloproteinase-1 (MMP-1) and increased expression of procollagen type 1 (PCOL1) and Elastin against oxidative stress by $H_2O_2$. Interestingly, these protective activities of 7-MEGA were similar in scope and of a higher magnitude than those seen with 98.5% palmitoleic acid (PA) obtained from Sigma when given at the same concentration (100 nL/mL). According to our data, 7-MEGA is able to protect HaCaT cells from $H_2O_2$-induced damage through inhibiting cellular oxidative stress and inflammation. Moreover, 7-MEGA may affect skin elasticity maintenance and improve skin wrinkles. These findings indicate that 7-MEGA may be useful as a food supplement for skin health.

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