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Jo JY, Chae SJ, Ryu HJ. Update on Melasma Treatments. Ann Dermatol 2024; 36:125-134. [PMID: 38816973 PMCID: PMC11148313 DOI: 10.5021/ad.23.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/12/2024] [Accepted: 03/04/2024] [Indexed: 06/01/2024] Open
Abstract
Melasma is a prevalent hyperpigmentation condition known for its challenging treatment due to its resemblance to photoaged skin disorders. Numerous studies have shed light on the intricate nature of melasma, which often bears similarity to photoaging disorders. Various therapeutic approaches, encompassing topical and systemic treatments, chemical peeling, and laser therapy, have exhibited efficacy in managing melasma in previous research. However, melasma often reoccurs despite successful treatment, primarily due to its inherent photoaged properties. Given that melasma shares features with photoaging disorders, including disruptions in the basement membrane, solar elastosis, angiogenesis, and mast cell infiltration in the dermal layer, a comprehensive treatment strategy is imperative. Such an approach might involve addressing epidermal hyperpigmentation while concurrently restoring dermal components. In this article, we provide a comprehensive review of conventional treatment methods frequently employed in clinical practice, as well as innovative treatments currently under development for melasma management. Additionally, we offer an extensive overview of the pathogenesis of melasma.
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Affiliation(s)
- Ju Young Jo
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Su Ji Chae
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Hwa Jung Ryu
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea.
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de Mello T, Argenta DF, Caon T. Revisiting the Effect of Aging on the Transport of Molecules through the Skin. Pharm Res 2024; 41:1031-1044. [PMID: 38740664 DOI: 10.1007/s11095-024-03710-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024]
Abstract
Both intrinsic and extrinsic aging lead to a series of morphological changes in the skin including the flattening of the dermal-epidermal junction, increased stratum corneum dryness, reduction in sebaceous gland activity and enzyme activity as well as atrophy of blood vessels. In this study, the impact of these changes on the transport of molecules through the skin was revised. The increase in the number of transdermal formulations on the market in recent decades and life expectancy represent the main reasons for an in-depth discussion of this topic. Furthermore, elderly subjects have often been excluded from clinical trials due to polypharmacy, raising concerns in terms of efficacy and safety. In this way, ex vivo and in vivo studies comparing the transport of molecules through the mature and young skin were analyzed in detail. The reduced water content in mature skin had a significant impact on the transport rate of hydrophilic molecules. The lower enzymatic activity in aged skin, in turn, would explain changes in the activation of prodrugs. Interestingly, greater deposition of nanoparticles was also found in mature skin. In vivo models should be prioritized in future experimental studies as they allow to evaluate both absorption and metabolism simultaneously, providing more realistic information.
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Affiliation(s)
- Tamires de Mello
- Laboratory of Cosmetic & Pharmaceutical Technology, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Débora Fretes Argenta
- Laboratory of Cosmetic & Pharmaceutical Technology, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Thiago Caon
- Laboratory of Cosmetic & Pharmaceutical Technology, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-900, Brazil.
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Zonari A, Brace LE, Harder NHO, Harker C, Oliveira CR, Boroni M, Carvalho JL. Double-blind, vehicle-controlled clinical investigation of peptide OS-01 for skin rejuvenation. J Cosmet Dermatol 2024; 23:2135-2144. [PMID: 38400612 DOI: 10.1111/jocd.16242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 01/05/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
INTRODUCTION Senescent cells contribute to age-related tissue deterioration, including the skin, which plays important roles in overall health and social interactions. This study aimed to assess the effects of the senotherapeutic peptide, OS-01 (a.k.a. Pep 14), on skin. METHODS A 12-week split-face, double-blinded, vehicle-controlled study involving 22 participants was conducted. The OS-01-containing formulation was applied to one side of the face, while the other side received an identical control formulation lacking the peptide. Skin characteristics were assessed using instrumental measurements, expert clinical grading, and subjective questionnaires. RESULTS Results showed that the OS-01 formulation significantly improved one aspect of skin barrier function, as evidenced by reduced trans-epidermal water loss compared to both baseline and vehicle control. Expert grading and Antera 3D image analysis revealed a reduction in wrinkle appearance and indentation in the periorbital area, and improved skin texture and radiance on both sides of the face, with the OS-01-containing formulation demonstrating superior results. Participants also perceived improvements in skin hydration, smoothness, radiance, and overall appearance. CONCLUSION The findings suggest that the OS-01 formulation promotes skin health by strengthening the skin barrier, protecting against dehydration, reducing the appearance of wrinkles, and improving skin texture and radiance. These effects are likely attributed to the senotherapeutic properties of OS-01 in reducing cellular senescence and its associated detrimental effects.
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Affiliation(s)
| | | | | | | | | | - Mariana Boroni
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Juliana L Carvalho
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, Brazil
- Laboratory of Interdisciplinary Biosciences, Faculty of Medicine, University of Brasília, Brasília, Brazil
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Wang Q, Qiu Z, Cheng L, Xu S, Li H, Guo J, Zhang X. Is diet related to skin condition? A Mendelian randomization study. Arch Dermatol Res 2024; 316:328. [PMID: 38824251 DOI: 10.1007/s00403-024-03103-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 04/07/2024] [Accepted: 04/26/2024] [Indexed: 06/03/2024]
Abstract
Observational studies have revealed associations between various dietary factors and skin conditions. However, the causal relationship between diet and skin condition is still unknown. Data on 17 dietary factors were obtained from the UK Biobank. Data on four skin conditions were derived from the UK Biobank and another large-scale GWAS study. Genetic predictions suggested that the intake of oily fish was associated with a lower risk of skin aging (OR: 0.962, P = 0.036) and skin pigmentation (OR: 0.973, P = 0.033); Tea intake was associated with a lower risk of skin pigmentation (OR: 0.972, P = 0.024); Salad/raw vegetables intake was associated with a lower risk of keratinocyte skin cancer (OR: 0.952, P = 0.007). Coffee intake was associated with increased risk of skin aging (OR: 1.040, P = 0.028); Pork intake was associated with increased risk of skin aging (OR: 1.134, P = 0.020); Beef intake was associated with increased risk of cutaneous melanoma (OR: 1.013, P = 0.016); Champagne plus white wine intake was associated with increased risk of cutaneous melanoma (OR: 1.033, P = 0.004); Bread intake was associated with increased risk of keratinocyte skin cancer (OR: 1.026, P = 0.013). Our study results indicate causal relationships between genetically predicted intake of oily fish, tea, salad/raw vegetables, coffee, pork, beef, champagne plus white wine, and bread and skin conditions.
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Affiliation(s)
- Qinyuan Wang
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Zeming Qiu
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Long Cheng
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Siping Xu
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Honggang Li
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Jingjing Guo
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Xuanfen Zhang
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China.
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China.
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Chen PY, Shen M, Cai SQ, Tang ZW. Association Between Atopic Dermatitis and Aging: Clinical Observations and Underlying Mechanisms. J Inflamm Res 2024; 17:3433-3448. [PMID: 38828054 PMCID: PMC11144009 DOI: 10.2147/jir.s467099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
As one of the most prevalent chronic inflammatory skin diseases, atopic dermatitis (AD) increasingly affects the aging population. Amid the ongoing global aging trend, it's essential to recognize the intricate relationship between AD and aging. This paper reviews existing knowledge, summarizing clinical observations of associations between AD and aging-related diseases in various systems, including endocrine, cardiovascular, and neurological. Additionally, it discusses major theories explaining the correlation, encompassing skin-mucosal barriers, systemic inflammation and stress, genes, signal transduction, and environmental and behavioral factors. The association between AD and aging holds significant importance, both in population and basic perspectives. While further research is warranted, this paper aims to inspire deeper exploration of inflammation/allergy-aging dynamics and the timely management of elderly patients with AD.
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Affiliation(s)
- Peng-Yu Chen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Minxue Shen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, People’s Republic of China
- Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis (Xiangya Hospital), Changsha, 410008, People’s Republic of China
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, 410078, People’s Republic of China
| | - Sui-Qing Cai
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Zhen-Wei Tang
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
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Kang HY. Phototherapy for pigmentary disorders. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12963. [PMID: 38616359 DOI: 10.1111/phpp.12963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/16/2024]
Affiliation(s)
- Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon-si, Gyeonggi-do, South Korea
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Li T, Xiong Y, Xian L, Xiong L, Li L. YAP prevents senescence of dermal fibroblast and inhibits melanogenesis via paracrine effect of DKK1. Exp Dermatol 2024; 33:e15093. [PMID: 38742821 DOI: 10.1111/exd.15093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/16/2024]
Abstract
Senile skin hyperpigmentation displays remarkable histopathological features of dermal aging. The crosstalk between melanocytes and dermal fibroblasts plays crucial roles in aging-related pigmentation. While senescent fibroblasts can upregulate pro-melanogenic factors, the role of anti-melanogenic factors, such as dickkopf1 (DKK1), and the upstream regulatory mechanism during aging remain obscure. This study investigated the roles of yes-associated protein (YAP) and DKK1 in the regulation of dermal fibroblast senescence and melanogenesis. Our findings demonstrated decreased YAP activity and DKK1 levels in intrinsic and extrinsic senescent fibroblasts. YAP depletion induced fibroblast senescence and downregulated the expression and secretion of DKK1, whereas YAP overexpression partially reversed the effect. The transcriptional regulation of DKK1 by YAP was supported by dual-luciferase reporter and chromatin immunoprecipitation assays. Moreover, YAP depletion in fibroblasts upregulated Wnt/β-catenin in melanocytes and stimulated melanogenesis, which was partially rescued by the re-supplementation of DKK1. Conversely, overexpression of YAP in senescent fibroblasts decreased Wnt/β-catenin levels in melanocytes and inhibited melanogenesis. Additionally, reduced levels of YAP and DKK1 were verified in the dermis of solar lentigines. These findings suggest that, during skin aging, epidermal pigmentation may be influenced by YAP in the dermal microenvironment via the paracrine effect of DKK1.
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Affiliation(s)
- Tong Li
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, P.R. China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Yimei Xiong
- Department of Biochemistry and Molecular Biology, School of Preclinical and Forensic Medicine, West China Medical Center, Sichuan University, Chengdu, P.R. China
| | - Longjun Xian
- Department of Biochemistry and Molecular Biology, School of Preclinical and Forensic Medicine, West China Medical Center, Sichuan University, Chengdu, P.R. China
| | - Lidan Xiong
- Cosmetic Safety and Efficacy Evaluation Center of West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Li Li
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, P.R. China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, P.R. China
- Cosmetic Safety and Efficacy Evaluation Center of West China Hospital, Sichuan University, Chengdu, P.R. China
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Cho H, Yang J, Kang JY, Kim KE. Inhibitory Effects of Fermented Sprouted Oat Extracts on Oxidative Stress and Melanin Overproduction. Antioxidants (Basel) 2024; 13:544. [PMID: 38790649 PMCID: PMC11117960 DOI: 10.3390/antiox13050544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/26/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
Hyperpigmentation occurs due to irregular secretion of melanin pigment in the skin. This can affect quality of life depending on its severity, so prevention and management are essential. Oats (Avena sativa L.), a grain consumed worldwide, are known to offer improved health benefits upon germination and fermentation. This study is aimed to investigate the protective effects of lactobacilli-fermented sprouted oat extracts on oxidative stress and melanin overproduction in vitro. The anti-melanogenic effect was investigated using melanin content and tyrosinase activity assays in B16F10 cells, as well as a mushroom tyrosinase-based enzyme inhibition assay. The results showed that L. casei-fermented oat extracts were the most effective for reducing melanin formation by reducing the mRNA expression of microphthalmia-associated transcription factor, tyrosinase, and tyrosinase-related protein 2. Furthermore, L. casei fermentation was effective in improving the total phenolic, flavonoid, and avenanthramide A contents of sprouted oat extracts. The results also demonstrated the antioxidant effects of L. casei-fermented sprouted oat extracts in promoting DPPH radical-scavenging activity, superoxide dismutase-like activity, and reduction in reactive oxygen species levels. Overall, the findings indicate that fermented sprouted oat extracts are promising candidates for antioxidant and anti-hyperpigmentation treatments.
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Affiliation(s)
- Hyeijin Cho
- Department of Health Industry, Sookmyung Women’s University, Seoul 04310, Republic of Korea; (H.C.); (J.Y.K.)
| | - Jisun Yang
- Department of Cosmetic Sciences, Sookmyung Women’s University, Seoul 04310, Republic of Korea;
| | - Ji Young Kang
- Department of Health Industry, Sookmyung Women’s University, Seoul 04310, Republic of Korea; (H.C.); (J.Y.K.)
| | - Kyung Eun Kim
- Department of Health Industry, Sookmyung Women’s University, Seoul 04310, Republic of Korea; (H.C.); (J.Y.K.)
- Department of Cosmetic Sciences, Sookmyung Women’s University, Seoul 04310, Republic of Korea;
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Vikram A, Patel SK, Singh A, Pathania D, Ray RS, Upadhyay AK, Dwivedi A. Natural autophagy activators: A promising strategy for combating photoaging. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155508. [PMID: 38901286 DOI: 10.1016/j.phymed.2024.155508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Photodamage to the skin stands out as one of the most widespread epidermal challenges globally. Prolonged exposure to sunlight containing ultraviolet radiation (UVR) instigates stress, thereby compromising the skin's functionality and culminating in photoaging. Recent investigations have shed light on the importance of autophagy in shielding the skin from photodamage. Despite the acknowledgment of numerous phytochemicals possessing photoprotective attributes, their potential to induce autophagy remains relatively unexplored. PURPOSE Diminished autophagy activity in photoaged skin underscores the potential benefits of restoring autophagy through natural compounds to enhance photoprotection. Consequently, this study aims to highlight the role of natural compounds in safeguarding against photodamage and to assess their potential to induce autophagy via an in-silico approach. METHODS A thorough search of the literature was done using several databases, including PUBMED, Science Direct, and Google Scholar, to gather relevant studies. Several keywords such as Phytochemical, Photoprotection, mTOR, Ultraviolet Radiation, Reactive oxygen species, Photoaging, and Autophagy were utilized to ensure thorough exploration. To assess the autophagy potential of phytochemicals through virtual screening, computational methodologies such as molecular docking were employed, utilizing tools like AutoDock Vina. Receptor preparation for docking was facilitated using MGLTools. RESULTS The initiation of structural and functional deterioration in the skin due to ultraviolet radiation (UVR) or sunlight-induced reactive oxygen species/reactive nitrogen species (ROS/RNS) involves the modulation of various pathways. Natural compounds like phenolics, flavonoids, flavones, and anthocyanins, among others, possess chromophores capable of absorbing light, thereby offering photoprotection by modulating these pathways. In our molecular docking study, these phytochemicals have shown binding affinity with mTOR, a negative regulator of autophagy, indicating their potential as autophagy modulators. CONCLUSION This integrated review underscores the photoprotective characteristics of natural compounds, while the in-silico analysis reveals their potential to modulate autophagy, which could significantly contribute to their anti-photoaging properties. The findings of this study hold promise for the advancement of cosmeceuticals and therapeutics containing natural compounds aimed at addressing photoaging and various skin-related diseases. By leveraging their dual benefits of photoprotection and autophagy modulation, these natural compounds offer a multifaceted approach to combatting skin aging and related conditions.
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Affiliation(s)
- Apeksha Vikram
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Sunil Kumar Patel
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Arshwinder Singh
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala-147004 Punjab, India
| | - Diksha Pathania
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Ratan Singh Ray
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Atul Kumar Upadhyay
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala-147004 Punjab, India.
| | - Ashish Dwivedi
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India.
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Assiri A, Hamzi SA, Hamzi YA, Muyidi AY, Harthi FM, Qaysi MM, Jadah AA, Safhi AM, Hobani AH. Knowledge, Attitude, Reception, and Preventive Practices Towards Skin Photoaging Among the General Population in Jazan, Saudi Arabia. Cureus 2024; 16:e55710. [PMID: 38586780 PMCID: PMC10998664 DOI: 10.7759/cureus.55710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2024] [Indexed: 04/09/2024] Open
Abstract
Introduction Skin photoaging is caused by prolonged exposure to sunlight, particularly ultraviolet rays (UV). High cumulative levels of UV radiation may cause burning, photoallergic or phototoxic reactions, pigmentary changes, photoaging, and even immunosuppression and skin cancers. Therefore, this study aims to assess knowledge, attitude, reception, and preventive practices towards skin photoaging among the Jazan general population in Saudi Arabia and its determinants. Methods A descriptive cross-sectional study was conducted among the general population of Jazan, Saudi Arabia, who were aged 18 years and above and agreed to participate in the study. The calculated minimum sample size was 385. An online, semi-structured, self-administered questionnaire was distributed conveniently in Google Forms through social media platforms. It included four sections: The first section was about sociodemographic characteristics. The second section assessed the smoking, exercise, and healthy diet behavior of participants and the use of sunscreen. The third section assessed the knowledge regarding the photoaging process and its preventive measures utilization using three-point Likert scale questions. The fourth section assessed attitudes towards the photoaging process and its preventive measures through three-point Likert scales. Results The study included 452, of which 243 (53.76%) were aged 18-30 years, 258 (57.08%) were females, and 272 (60.18%) had white skin color. Approximately 417 (92.26%) were nonsmokers. Sixty-eight percent (372) spent 1-3 hours in the sun. Social media was the primary source of information on photoaging 81 (17.92%). Around 234 (51.77%) defined photoaging correctly. Regarding sunscreen usage, 58 (12.83%) always use sunscreen, and 177 (39.16%) never use it. However, 191 (42.26%) recognized the correct sunscreen application. Approximately 233 (51.5%) and 240 (53.1%) of respondents had fair knowledge and a positive attitude regarding photoaging and sunscreen use. Being female, pursuing university and postgraduate education, and taking information on photoaging from a physician were linked to a higher knowledge of photoaging (p<0.05). Participants who never use sunscreen had lower knowledge than those who always use it (p<0.001). None of the demographic factors was associated with the attitude towards sunscreen use (p>0.05). Conclusion There is a substantial gap in knowledge and preventive practices related to skin photoaging among the Jazan general population in Saudi Arabia. Gender, education level, and information sources influence knowledge levels. Targeted educational interventions are needed to enhance awareness and promote healthier practices, particularly sun exposure and photoaging prevention.
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Affiliation(s)
- Ahmad Assiri
- Department of Dermatology, Jazan University, Jazan, SAU
| | - Shorooq A Hamzi
- Department of Pediatrics, Jazan General Hospital, Jazan, SAU
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Hara Y, Shibata T. Characteristics of dermal vascularity in melasma and solar lentigo. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12953. [PMID: 38353352 DOI: 10.1111/phpp.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND /PURPOSE Melasma and solar lentigo (SL) are major benign hyperpigmented lesions, and both have been shown to involve the dermal vasculature. This review discusses current knowledge regarding the clinical characteristics of dermal vascularity in melasma and SL, as well as the results of relevant molecular biological investigations. METHODS PubMed and Google Scholar were searched in December 2023 to identify articles related to melasma, SL, and the dermal vasculature in these lesions. RESULTS Vascular morphologies in melasma and SL have been detected by histological and non-invasive methods, including modalities such as optical coherence tomography. Biological studies have indicated that factors secreted from vascular endothelial cells, such as stem cell factor and endothelin-1, can promote melanogenesis. With respect to phototherapy, blood vessel-targeting laser treatments are expected to provide long-term suppression of pigmentation, but this regimen is only effective when dilated capillaries are visible. CONCLUSION In both melasma and SL, clinical and experimental investigations are revealing the contributions of dermal vascularity to hyperpigmentation. More effective treatment may require identification of hyperpigmentation subtypes. In the future, knowledge of treatment (including phototherapy) is expected to accumulate through reliable and validated non-invasive measurements.
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Affiliation(s)
- Yusuke Hara
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
| | - Takako Shibata
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
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Seong SH, Lee YI, Lee J, Suk J, Kim IA, Baeg C, Kim J, Lee JH. Oral consumption of Bonito fish-derived elastin peptide (VGPG Elastin ® ) improves biophysical properties in aging skin: A randomized, double-blinded, placebo-controlled study. Skin Res Technol 2024; 30:e13634. [PMID: 38481080 PMCID: PMC10938029 DOI: 10.1111/srt.13634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/19/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND Recent in vitro and in vivo studies have suggested that the elastin peptide improves the skin's biophysical properties, enhancing the proliferation of fibroblasts and elastin synthesis, resulting in anti-aging properties. Therefore, we conducted a randomized, double-blinded, placebo-controlled study to clinically evaluate the effect of elastin peptide intake on human skin. MATERIALS AND METHODS Healthy adult participants (N = 100) were randomly assigned to receive a test product containing 100 mg of Bonito elastin peptide (VGPG Elastin® ) or placebo. In this study, all participants were Asian from Korea. The parameters of skin wrinkles, hydration, and brightening (melanin index) were measured at baseline and 4, 8, and 12 weeks after intervention. RESULTS The average skin roughness, maximum peak-to-valley values, maximum peak height of the wrinkle, maximum valley depth of the wrinkle, average maximum height of the wrinkle, and eye wrinkle volume improved considerably in the test group compared with the placebo after 12 weeks of intervention. Skin hydration was enhanced, and the melanin index was significantly lower in the test group than in the placebo group. No participant experienced adverse events related to the test product. CONCLUSION Oral consumption of Bonito elastin peptide (VGPG Elastin®) reduced fine wrinkles, enhanced skin moisture, and decreased melanin index without significant adverse effects and may be a promising anti-wrinkle, anti-dryness, and anti-pigmentation treatment.
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Affiliation(s)
- Seol Hwa Seong
- Department of DermatologySeverance HospitalCutaneous Biology Research InstituteYonsei University College of MedicineSeoulSouth Korea
- Scar Laser and Plastic Surgery CenterYonsei Cancer HospitalYonsei University College of MedicineSeoulSouth Korea
| | - Young In Lee
- Department of DermatologySeverance HospitalCutaneous Biology Research InstituteYonsei University College of MedicineSeoulSouth Korea
- Scar Laser and Plastic Surgery CenterYonsei Cancer HospitalYonsei University College of MedicineSeoulSouth Korea
| | - Joohee Lee
- Department of DermatologySeverance HospitalCutaneous Biology Research InstituteYonsei University College of MedicineSeoulSouth Korea
| | - Jangmi Suk
- Global Medical Research CenterSeoulSouth Korea
| | - In Ah Kim
- Global Medical Research CenterSeoulSouth Korea
| | | | - Jinhak Kim
- R&D DivisionDaehan Chemtech Co., Ltd.SeoulSouth Korea
| | - Ju Hee Lee
- Department of DermatologySeverance HospitalCutaneous Biology Research InstituteYonsei University College of MedicineSeoulSouth Korea
- Scar Laser and Plastic Surgery CenterYonsei Cancer HospitalYonsei University College of MedicineSeoulSouth Korea
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13
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Sarandy MM, Gonçalves RV, Valacchi G. Cutaneous Redox Senescence. Biomedicines 2024; 12:348. [PMID: 38397950 PMCID: PMC10886899 DOI: 10.3390/biomedicines12020348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Our current understanding of skin cell senescence involves the role of environmental stressors (UV, O3, cigarette smoke, particulate matter, etc.), lifestyle (diet, exercise, etc.) as well as genetic factors (metabolic changes, hormonal, etc.). The common mechanism of action of these stressors is the disturbance of cellular redox balance characterized by increased free radicals and reactive oxygen species (ROS), and when these overload the intrinsic antioxidant defense system, it can lead to an oxidative stress cellular condition. The main redox mechanisms that activate cellular senescence in the skin involve (1) the oxidative damage of telomeres causing their shortening; (2) the oxidation of proteomes and DNA damage; (3) an a in lysosomal mass through the increased activity of resident enzymes such as senescence-associated β-galactosidase (SA-β-gal) as well as other proteins that are products of lysosomal activity; (4) and the increased expression of SASP, in particular pro-inflammatory cytokines transcriptionally regulated by NF-κB. However, the main targets of ROS on the skin are the proteome (oxi-proteome), followed by telomeres, nucleic acids (DNAs), lipids, proteins, and cytoplasmic organelles. As a result, cell cycle arrest pathways, lipid peroxidation, increased lysosomal content and dysfunctional mitochondria, and SASP synthesis occur. Furthermore, oxidative stress in skin cells increases the activity of p16INK4A and p53 as inhibitors of Rb and CDks, which are important for maintaining the cell cycle. p53 also promotes the inactivation of mTOR-mediated autophagic and apoptotic pathways, leading to senescence. However, these markers alone cannot establish the state of cellular senescence, and multiple analyses are encouraged for confirmation. An updated and more comprehensive approach to investigating skin senescence should include further assays of ox-inflammatory molecular pathways that can consolidate the understanding of cutaneous redox senescence.
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Affiliation(s)
- Mariáurea Matias Sarandy
- Department of Animal Science, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
- Department of General Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
| | - Reggiani Vilela Gonçalves
- Department of General Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
- Department of Animal Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
| | - Giuseppe Valacchi
- Department of Animal Science, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
- Department of Environment and Prevention, University of Ferrara, 44121 Ferrara, Italy
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
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14
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Lu L, Bai W, Wang M, Han C, Du H, Wang N, Gao M, Li D, Dong F, Ge X. Novel roles of bovine milk-derived exosomes in skin antiaging. J Cosmet Dermatol 2023. [PMID: 38105431 DOI: 10.1111/jocd.16112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/31/2023] [Accepted: 11/20/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Exosomes are small vesicles released from cells and are found in various mammalian biological fluids, such as bovine milk, which has been employed in skincare for many years, apart from its dairy applications. In addition, exosomes have been recognized as vehicles for intercellular communication. AIMS In this study, we aimed to investigate the novel effects of bovine milk-derived exosomes (MK-Exo) on antiaging in human skin. METHODS Initially, MK-Exo were co-cultured with keratinocytes and fibroblasts; subsequent analysis involved qPCR and western blotting to assess induced gene expression. Subsequently, MK-Exo were topically applied to the facial skin of 31 female volunteers twice daily for 28 days. The functions were evaluated after conducting safety assessments in vivo. RESULTS Purified MK-Exo demonstrated the ability to be taken up directly by keratinocytes and fibroblasts in vitro, resulting in the upregulation of natural factors associated with skin moisturization, including filaggrin (FLG), aquaporin 3 (AQP3), and CD44 in keratinocytes, as well as hyaluronidase (HAS2) in fibroblasts. Concurrently, MK-Exo promoted fibroblast cell migration and restored the expression of type I and III collagen (Col I and Col III) following exposure to ultraviolet radiation. Furthermore, phototoxicity, photoallergy, repeated skin irritation, skin allergy, and patch tests confirmed the safety of MK-Exo for skin application. Finally, we elucidated the roles of MK-Exo in preserving moisture and reducing wrinkles in humans. CONCLUSION Our findings unveil the novel contributions of MK-Exo to human skin aging, presenting a new avenue in the field of skincare.
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Affiliation(s)
- Lu Lu
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Wei Bai
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Miao Wang
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Chunle Han
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Huanqing Du
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Na Wang
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Mengya Gao
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Dan Li
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Fengwei Dong
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
| | - Xiaohu Ge
- Tingo Exosomes Technology Co., Ltd, Tianjin, China
- Institute of TINGO Regenerative Medicine (Tianjin), Tianjin, China
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15
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He X, Gao X, Xie W. Research Progress in Skin Aging, Metabolism, and Related Products. Int J Mol Sci 2023; 24:15930. [PMID: 37958920 PMCID: PMC10647560 DOI: 10.3390/ijms242115930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
In recent years, skin aging has received increasing attention. Many factors affect skin aging, and research has shown that metabolism plays a vital role in skin aging, but there needs to be a more systematic review. This article reviews the interaction between skin metabolism and aging from the perspectives of glucose, protein, and lipid metabolism and explores relevant strategies for skin metabolism regulation. We found that skin aging affects the metabolism of three major substances, which are glucose, protein, and lipids, and the metabolism of the three major substances in the skin also affects the process of skin aging. Some drugs or compounds can regulate the metabolic disorders mentioned above to exert anti-aging effects. Currently, there are a variety of products, but most of them focus on improving skin collagen levels. Skin aging is closely related to metabolism, and they interact with each other. Regulating specific metabolic disorders in the skin is an important anti-aging strategy. Research and development have focused on improving collagen levels, while the regulation of other skin glycosylation and lipid disorders including key membrane or cytoskeleton proteins is relatively rare. Further research and development are expected.
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Affiliation(s)
- Xin He
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Open FIESTA Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
| | - Xinyu Gao
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
| | - Weidong Xie
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Open FIESTA Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
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Alves-Silva JM, Moreira P, Cavaleiro C, Pereira C, Cruz MT, Salgueiro L. Effect of Ferulago lutea (Poir.) Grande Essential Oil on Molecular Hallmarks of Skin Aging. PLANTS (BASEL, SWITZERLAND) 2023; 12:3741. [PMID: 37960097 PMCID: PMC10648677 DOI: 10.3390/plants12213741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023]
Abstract
With the increase in global life expectancy, maintaining health into old age becomes a challenge, and research has thus concentrated on various strategies which aimed to mitigate the effects of skin aging. Aromatic plants stand out as promising sources of anti-aging compounds due to their secondary metabolites, particularly essential oils (EOs). The aim of this study was to ascribe to Ferulago lutea EO several biological activities that could be useful in the context of skin aging. The EO was obtained using hydrodistillation and characterized by gas chromatography-mass spectrometry (GC/MS). The anti-inflammatory potential was assessed using lipopolysaccharide (LPS)-stimulated macrophages. The effect on cell migration was disclosed using scratch wound assay. Lipogenesis was induced using T0901317, hyperpigmentation with 3-isobutyl-1-methylxantine (IBMX) and senescence with etoposide. Our results show that the EO was characterized mainly by α-pinene and limonene. The EO was able to decrease nitric oxide (NO) release as well as iNOS and pro-IL-1β protein levels. The EO promoted wound healing while decreasing lipogenesis and having depigmenting effects. The EO also reduced senescence-associated β-galactosidase, p21/p53 protein levels and the nuclear accumulation of γH2AX. Overall, our study highlights the properties of F. lutea EO that make it a compelling candidate for dermocosmetics applications.
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Affiliation(s)
- Jorge M. Alves-Silva
- Univ Coimbra, Institute for Clinical and Biomedical Research, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal;
- Univ Coimbra, Faculty of Pharmacy, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal;
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal; (P.M.); (C.P.)
| | - Patrícia Moreira
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal; (P.M.); (C.P.)
- Univ Coimbra, Center for Neuroscience and Cell Biology, Faculty of Medicine, Rua Larga, 3004-504 Coimbra, Portugal;
| | - Carlos Cavaleiro
- Univ Coimbra, Faculty of Pharmacy, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal;
- Univ Coimbra, Chemical Process Engineering and Forest Products Research Centre, Department of Chemical Engineering, Faculty of Sciences and Technology, 3030-790 Coimbra, Portugal
| | - Cláudia Pereira
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal; (P.M.); (C.P.)
- Univ Coimbra, Center for Neuroscience and Cell Biology, Faculty of Medicine, Rua Larga, 3004-504 Coimbra, Portugal;
- Univ Coimbra, Faculty of Medicine, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal
| | - Maria Teresa Cruz
- Univ Coimbra, Center for Neuroscience and Cell Biology, Faculty of Medicine, Rua Larga, 3004-504 Coimbra, Portugal;
| | - Lígia Salgueiro
- Univ Coimbra, Faculty of Pharmacy, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal;
- Univ Coimbra, Chemical Process Engineering and Forest Products Research Centre, Department of Chemical Engineering, Faculty of Sciences and Technology, 3030-790 Coimbra, Portugal
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17
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Liu H, Ming S. Causal Relationship Between Blood Triglyceride Levels and Age Spots: A Mendelian Randomization Analysis. Clin Cosmet Investig Dermatol 2023; 16:3121-3128. [PMID: 37927386 PMCID: PMC10625373 DOI: 10.2147/ccid.s431276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/17/2023] [Indexed: 11/07/2023]
Abstract
Objective This study examined the association between blood triglyceride (TG) levels (TLIB) and age spots (AS). Methods We acquired data from the Mendelian randomization (MR) Base database and evaluated the causal association between TLIB and AS. Results From genome-wide association studies, we selected 33 single nucleotide polymorphisms (SNPs) that were significantly associated with TLIB and AS. The inverse variance-weighted (IVW) and weighted median estimation methods showed that TLIB had a protective effect on AS (IVW: β=-0.214, P=0.019, odds ratio [OR]=0.807, 95% confidence interval [CI]=0.674-0.966; weighted median: β=-0.277, P=0.032, OR=0.758, 95% CI=0.589-0.977). However, the MR-Egger analysis suggested no causal association (β=-0.234, P=0.085, OR=0.792, 95% CI=0.612-1.024). The greater precision of the weighted median estimation and IVW suggests that our results support a potential causal association between TLIB and AS. Conclusion The MR analysis proved that TLIB has a protective effect against AS and that triglycerides have potential preventive and therapeutic effects against AS. However, the specific dose-effect relationship requires further study.
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Affiliation(s)
- Hongtao Liu
- Clinical Medical School, Guangxi Health Science College, Nanning, 530011, People’s Republic of China
| | - Shaopeng Ming
- Anesthesiology Department, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, People’s Republic of China
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18
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Shin SH, Lee YH, Rho NK, Park KY. Skin aging from mechanisms to interventions: focusing on dermal aging. Front Physiol 2023; 14:1195272. [PMID: 37234413 PMCID: PMC10206231 DOI: 10.3389/fphys.2023.1195272] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Skin aging is a multifaceted process that involves intrinsic and extrinsic mechanisms that lead to various structural and physiological changes in the skin. Intrinsic aging is associated with programmed aging and cellular senescence, which are caused by endogenous oxidative stress and cellular damage. Extrinsic aging is the result of environmental factors, such as ultraviolet (UV) radiation and pollution, and leads to the production of reactive oxygen species, ultimately causing DNA damage and cellular dysfunction. In aged skin, senescent cells accumulate and contribute to the degradation of the extracellular matrix, which further contributes to the aging process. To combat the symptoms of aging, various topical agents and clinical procedures such as chemical peels, injectables, and energy-based devices have been developed. These procedures address different symptoms of aging, but to devise an effective anti-aging treatment protocol, it is essential to thoroughly understand the mechanisms of skin aging. This review provides an overview of the mechanisms of skin aging and their significance in the development of anti-aging treatments.
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Affiliation(s)
- Sun Hye Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Yoon Hwan Lee
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Nark-Kyoung Rho
- Leaders Aesthetic Laser & Cosmetic Surgery Center, Seoul, Republic of Korea
| | - Kui Young Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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19
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Park JY, Lee JY, Kim Y, Kang CH. Latilactobacillus sakei Wikim0066 Protects Skin through MMP Regulation on UVB-Irradiated In Vitro and In Vivo Model. Nutrients 2023; 15:nu15030726. [PMID: 36771432 PMCID: PMC9919521 DOI: 10.3390/nu15030726] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/17/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Ultraviolet (UV) B exposure induces wrinkle formation, collagen fiber breakdown, and transepidermal water loss (TEWL). UVB irradiation induces the expression of mitogen-activated protein kinase (MAPK), activator protein 1 (AP-1), and nuclear factor kappa B (NF-κB), which affect the expression of matrix metalloproteinases (MMP). We confirmed the effects of Latilactobacillus sakei wikim0066 (wikim0066) on UVB-irradiated Hs68 cells and HR-1 hairless mice cells. wikim0066 restored the production of type I procollagen by regulating the expression of MMP-1 and -3, MAPK, AP-1, and NF-κB in UVB-irradiated Hs68 cells and HR-1 mice. Oral administration of wikim0066 alleviates wrinkle formation, epidermal thickness, and TEWL in UVB-irradiated HR-1 hairless mice. These results indicated that wikim0066 has the potential to prevent UVB-induced wrinkle formation.
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20
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Li X, Qin S, Shi S, Feng Y, Li H, Feng Y, Li M, Wen J. Prospective study of efficacy and safety of non-ablative 1927 nm fractional thulium fiber laser in Asian skin photoaging. Front Surg 2023; 10:1076848. [PMID: 36950052 PMCID: PMC10025463 DOI: 10.3389/fsurg.2023.1076848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 02/10/2023] [Indexed: 03/08/2023] Open
Abstract
Background and Objective Photoaging manifests as deeper wrinkles and larger pores. It has been tried to rejuvenate photoaging skin using a variety of lasers, including fractionated lasers, which are a popular photorejuvenation treatment. A new breakthrough for skin rejuvenation is the 1927 nm fractional thulium fiber laser (FTL), a laser and light-based treatment option. Clinical data regarding the FTL for treating photoaging are limited despite its effectiveness and safety. This study is aim to evaluate FTL' clinical effectiveness and safety. Methods Fitzpatrick skin types II-IV subjects with mild to moderate photoaging signs were enrolled in this prospective study. At intervals of one month, patients received three full face treatments. Wrinkles, spots, texture, pores, melanin index, erythema index (MI and EI), skin elasticity and hydration were measured with non-invasive tool. The epidermal thickness and dermal density on ultrasonography were compared between baseline and one month after all treatment sessions. The Global Score for Photoaging scale (GSP) was rated by two independent evaluators at the baseline and final follow-up visit. Secondary outcomes included patient-rated pain on a 10-point visual analog scale (VAS), as well as overall satisfaction. Following each treatment, adverse events were noted. Results Totally 27 subjects (24 females and 3 males) with Fitzpatrick skin types II to IV and a mean age of 44.41 (range33-64) were enrolled. Results suggests that the epidermal thickness has significantly improved after treatment. Statistically significant improvements in melanin index, skin elasticity and wrinkles were noted. An analysis of 12 subjects' reports (44%) suggested their skin felt brighter. No post-inflammatory hyperpigmentation changes or adverse events were observed. 70% patients reporting "satisfied" or "extremely satisfied". Conclusions In this study, FTL was found to be a safe and effective treatment option for treating photoaging.
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Affiliation(s)
- Xianwen Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Si Qin
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Siman Shi
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yingjun Feng
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Huarun Li
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yuqin Feng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Mujin Li
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Ju Wen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Dermatology, Guangdong Second Provincial General Hospital, Guangzhou, China
- Correspondence: Ju Wen
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Liang Y, Su W, Wang F. Skin Ageing: A Progressive, Multi-Factorial Condition Demanding an Integrated, Multilayer-Targeted Remedy. Clin Cosmet Investig Dermatol 2023; 16:1215-1229. [PMID: 37192990 PMCID: PMC10182820 DOI: 10.2147/ccid.s408765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/01/2023] [Indexed: 05/18/2023]
Abstract
Of the human organs, skin is the most visible one that displays the manifestations of ageing. It has a very intricate microanatomical structure and performs several key physiological functions. The pathophysiology of cutaneous ageing is characterized by deterioration of structural stability and functional integrity, implying a continuous reduction in maximal function and reserve capacity, as a result of the accumulating damage due to both intrinsic and extrinsic factors. Elimination of unfavorable expressions associated with facial and cutaneous ageing is the key patient demand in aesthetic dermatology. Even though the progress has been made in nonsurgical therapies like fillers and lasers, non-invasive interventions by using skin care products designed for rejuvenation at an early stage are the most popular and accessible solution among people. In this review, we have scrutinized the ageing-associated cutaneous changes at molecular, cellular and tissue levels. To optimize the ageing process towards a healthy skin, we propose an integrated, multilayer-targeted intervention, which involves both topical application of anti-ageing formulations from outside and oral supplementation from inside. Additionally, several promising naturally derived ingredients are reviewed from an anti-aging perspective. Most of them possess various bioactivities and may contribute to the development of the mentioned anti-ageing remedy.
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Affiliation(s)
- Yihuai Liang
- Research and Development Center, Yunnan Botanee Bio-Technology Group Co. Ltd, Shanghai, People’s Republic of China
- Yunnan Yunke Characteristic Plant Extraction Laboratory Co. Ltd, Kunming, Yunnan, People’s Republic of China
| | - Wenrou Su
- Research and Development Center, Yunnan Botanee Bio-Technology Group Co. Ltd, Shanghai, People’s Republic of China
- Yunnan Yunke Characteristic Plant Extraction Laboratory Co. Ltd, Kunming, Yunnan, People’s Republic of China
| | - Feifei Wang
- Research and Development Center, Yunnan Botanee Bio-Technology Group Co. Ltd, Shanghai, People’s Republic of China
- Yunnan Yunke Characteristic Plant Extraction Laboratory Co. Ltd, Kunming, Yunnan, People’s Republic of China
- Medaesthee (Shanghai) Biotechnology Co., Ltd, Shanghai, People’s Republic of China
- Correspondence: Feifei Wang, Research and Development Center, Yunnan Botanee Bio-Technology Group Co. Ltd, No. 999 Huaxu Road, Shanghai, 201702, People’s Republic of China, Tel +86 21 39880807, Email
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Aging and Wound Healing of the Skin: A Review of Clinical and Pathophysiological Hallmarks. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122142. [PMID: 36556508 PMCID: PMC9784880 DOI: 10.3390/life12122142] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Aging is a universal process that can cause diminished function of organs and various diseases. The most striking consequences of aging can be seen visibly on the skin, which acts as a barrier against various external insults. Aging of the skin consists of intrinsic and extrinsic processes that work in concert and influence each other. Intrinsic aging involves biochemical degenerative processes that gradually takes place with age. Extrinsic aging are biochemical processes driven by external influences that lead to aging. There are significant morphological changes at all levels in aged skin that have a profound effect on the characteristics of the skin. Even though skin is subjected to damage by external insults, it is equipped with a healing capability in order to restore its normal structure and function. However, aging has a significant impact on the skin's healing function by prolonging the inflammatory phase and increasing the production of reactive oxygen species (ROS). This shifts the healing process towards having more protein degradation, which can lead to chronic wound healing with an abundance of complications.
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Current Understanding of the Role of Senescent Melanocytes in Skin Ageing. Biomedicines 2022; 10:biomedicines10123111. [PMID: 36551868 PMCID: PMC9775966 DOI: 10.3390/biomedicines10123111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
Melanocytes reside within the basal epidermis of human skin, and function to protect the skin from ultraviolet light through the production of melanin. Prolonged exposure of the skin to UV light can induce irreparable DNA damage and drive cells into senescence, a sustained cell cycle arrest that prevents the propagation of this damage. Senescent cells can also be detrimental and contribute to skin ageing phenotypes through their senescence-associated secretory phenotype. Senescent cells can act in both an autocrine and paracrine manner to produce widespread tissue inflammation and skin ageing. Recently, melanocytes have been identified as the main senescent cell population within the epidermis and have been linked to a variety of skin ageing phenotypes, such as epidermal thinning and the presence of wrinkles. However, the literature surrounding melanocyte senescence is limited and tends to focus on the role of senescence in the prevention of melanoma. Therefore, this review aims to explore the current understanding of the contribution of senescent melanocytes to human skin ageing.
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Paganelli A, Rossi E, Magnoni C. The dark side of adipose-derived mesenchymal stromal cells in cutaneous oncology: roles, expectations, and potential pitfalls. Stem Cells Dev 2022; 31:593-603. [PMID: 36066334 DOI: 10.1089/scd.2022.0189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Adipose-derived stromal cells (ADSCs) have well-established regenerative and immunomodulatory properties. For such reasons, ADSCs are currently under investigation for their use in the setting of both regenerative medicine and autoimmune diseases. As per dermatological disorders, MSC-based strategies represent potential therapeutic tools not only for chronic ulcers and wound healing, but also for immune-mediated dermatoses. However, a growing body of research has been focusing on the role of MSCs in human cancers, due to the potential oncological risk of using MSC-based strategies linked to their anti-apoptotic, pro-angiogenic and immunosuppressive properties. In the dermatological setting, ADSCs have shown not only to promote melanoma growth and invasiveness, but also to induce drug-resistance. On the other hand, genetically modified ADSCs have been demonstrated to efficiently target therapies at tumor sites, due to their migratory properties and their peculiar tropism for cancer microenvironment. The present review briefly summarizes the findings published so far on the use of ADSCs in the dermato-oncological setting, with the majority of data being available for melanoma.
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Affiliation(s)
- Alessia Paganelli
- Universita degli Studi di Modena e Reggio Emilia, Dermatology, Modena, Italy, 41124;
| | - Elena Rossi
- Universita degli Studi di Modena e Reggio Emilia, Dermatology, Modena, Italy;
| | - Cristina Magnoni
- Universita degli Studi di Modena e Reggio Emilia, Dermatology, Modena, Italy;
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