Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm
The skin is subject to both intrinsic aging caused by metabolic processes in the body and extrinsic aging caused by exposure to environmental factors. Intrinsic aging is an important obstacle to in vitro experimentation as its long-term progression is difficult to replicate. Here, we accelerated agi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/23/12788 |
| _version_ | 1797507773442818048 |
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| author | Subin Jeong Jisue Kim Hye Mi Jeon Kyunghee Kim Gun Yong Sung |
| author_facet | Subin Jeong Jisue Kim Hye Mi Jeon Kyunghee Kim Gun Yong Sung |
| author_sort | Subin Jeong |
| collection | DOAJ |
| description | The skin is subject to both intrinsic aging caused by metabolic processes in the body and extrinsic aging caused by exposure to environmental factors. Intrinsic aging is an important obstacle to in vitro experimentation as its long-term progression is difficult to replicate. Here, we accelerated aging of a full-thickness skin equivalent by applying periodic mechanical stimulation, replicating the circadian rhythm for 28 days. This aging skin model was developed by culturing a full-thickness, three-dimensional skin equivalent with human fibroblasts and keratinocytes to produce flexible skin-on-a-chip. Accelerated aging associated with periodic compressive stress was evidenced by reductions in the epidermal layer thickness, contraction rate, and secretion of Myb. Increases in β-galactosidase gene expression and secretion of reactive oxygen species and transforming growth factor-β1 were also observed. This in vitro aging skin model is expected to greatly accelerate drug development for skin diseases and cosmetics that cannot be tested on animals. |
| first_indexed | 2024-03-10T04:53:12Z |
| format | Article |
| id | doaj.art-51cb41ab0430438fa4b47f37d9bbef67 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T04:53:12Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-51cb41ab0430438fa4b47f37d9bbef672023-11-23T02:28:06ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-11-0122231278810.3390/ijms222312788Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian RhythmSubin Jeong0Jisue Kim1Hye Mi Jeon2Kyunghee Kim3Gun Yong Sung4Interdisciplinary Program of Nano-Medical Device Engineering, Graduate School, Hallym University, Chuncheon 24252, KoreaInterdisciplinary Program of Nano-Medical Device Engineering, Graduate School, Hallym University, Chuncheon 24252, KoreaInterdisciplinary Program of Nano-Medical Device Engineering, Graduate School, Hallym University, Chuncheon 24252, KoreaInterdisciplinary Program of Nano-Medical Device Engineering, Graduate School, Hallym University, Chuncheon 24252, KoreaInterdisciplinary Program of Nano-Medical Device Engineering, Graduate School, Hallym University, Chuncheon 24252, KoreaThe skin is subject to both intrinsic aging caused by metabolic processes in the body and extrinsic aging caused by exposure to environmental factors. Intrinsic aging is an important obstacle to in vitro experimentation as its long-term progression is difficult to replicate. Here, we accelerated aging of a full-thickness skin equivalent by applying periodic mechanical stimulation, replicating the circadian rhythm for 28 days. This aging skin model was developed by culturing a full-thickness, three-dimensional skin equivalent with human fibroblasts and keratinocytes to produce flexible skin-on-a-chip. Accelerated aging associated with periodic compressive stress was evidenced by reductions in the epidermal layer thickness, contraction rate, and secretion of Myb. Increases in β-galactosidase gene expression and secretion of reactive oxygen species and transforming growth factor-β1 were also observed. This in vitro aging skin model is expected to greatly accelerate drug development for skin diseases and cosmetics that cannot be tested on animals.https://www.mdpi.com/1422-0067/22/23/12788flexible skin-on-a-chipcircadian rhythmperiodic compressive stress |
| spellingShingle | Subin Jeong Jisue Kim Hye Mi Jeon Kyunghee Kim Gun Yong Sung Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm International Journal of Molecular Sciences flexible skin-on-a-chip circadian rhythm periodic compressive stress |
| title | Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm |
| title_full | Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm |
| title_fullStr | Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm |
| title_full_unstemmed | Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm |
| title_short | Development of an Aged Full-Thickness Skin Model Using Flexible Skin-on-a-Chip Subjected to Mechanical Stimulus Reflecting the Circadian Rhythm |
| title_sort | development of an aged full thickness skin model using flexible skin on a chip subjected to mechanical stimulus reflecting the circadian rhythm |
| topic | flexible skin-on-a-chip circadian rhythm periodic compressive stress |
| url | https://www.mdpi.com/1422-0067/22/23/12788 |
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