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Chen SD, Chu CY, Wang CB, Yang Y, Xu ZY, Qu YL, Man Y. Integrated-omics profiling unveils the disparities of host defense to ECM scaffolds during wound healing in aged individuals. Biomaterials 2024; 311:122685. [PMID: 38944969 DOI: 10.1016/j.biomaterials.2024.122685] [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: 02/05/2024] [Revised: 06/11/2024] [Accepted: 06/23/2024] [Indexed: 07/02/2024]
Abstract
Extracellular matrix (ECM) scaffold membranes have exhibited promising potential to better the outcomes of wound healing by creating a regenerative microenvironment around. However, when compared to the application in younger individuals, the performance of the same scaffold membrane in promoting re-epithelialization and collagen deposition was observed dissatisfying in aged mice. To comprehensively explore the mechanisms underlying this age-related disparity, we conducted the integrated analysis, combing single-cell RNA sequencing (scRNA-Seq) with spatial transcriptomics, and elucidated six functionally and spatially distinctive macrophage groups and lymphocytes surrounding the ECM scaffolds. Through intergroup comparative analysis and cell-cell communication, we characterized the dysfunction of Spp1+ macrophages in aged mice impeded the activation of the type Ⅱ immune response, thus inhibiting the repair ability of epidermal cells and fibroblasts around the ECM scaffolds. These findings contribute to a deeper understanding of biomaterial applications in varied physiological contexts, thereby paving the way for the development of precision-based biomaterials tailored specifically for aged individuals in future therapeutic strategies.
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Affiliation(s)
- Shuai-Dong Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chen-Yu Chu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chen-Bing Wang
- College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Yang Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Zhao-Yu Xu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yi-Li Qu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yi Man
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China.
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Wang WT, Xue YJ, Zhou JK, Zhang Z, Guo SY, Zhao CF, Bai Y, Zhu YT, Zhang LZ, Guo S, Ren GX. Exploring the antimicrobial activity of rare ginsenosides and the progress of their related pharmacological effects. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 133:155904. [PMID: 39151265 DOI: 10.1016/j.phymed.2024.155904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/23/2024] [Accepted: 07/20/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND Panax ginseng C. A. Mey is a precious medicinal resource that could be used to treat a variety of diseases. Saponins are the most important bioactive components of, and rare ginsenosides (Rg3, Rh2, Rk1 and Rg5, etc.) refer to the chemical structure changes of primary ginsenosides through dehydration and desugarization reactions, to obtain triterpenoids that are easier to be absorbed by the human body and have higher activity. PURPOSE At present, the research of P. ginseng. is widely focused on anticancer related aspects, and there are few studies on the antibacterial and skin protection effects of rare ginsenosides. This review summarizes the rare ginsenosides related to bacterial inhibition and skin protection and provides a new direction for P. ginseng research. METHODS PubMed and Web of Science were searched for English-language studies on P. ginseng published between January 2002 and March 2024. Selected manuscripts were evaluated manually for additional relevant references. This review includes basic scientific articles and related studies such as prospective and retrospective cohort studies. CONCLUSION This paper summarizes the latest research progress of several rare ginsenosides, discusses the antibacterial effect of rare ginsenosides, and finds that ginsenosides can effectively protect the skin and promote wound healing during use, so as to play an efficient antibacterial effect, and further explore the other medicinal value of ginseng. It is expected that this review will provide a wider understanding and new ideas for further research and development of P. ginseng drugs.
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Affiliation(s)
- Wen-Ting Wang
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Ya-Jie Xue
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Jian-Kang Zhou
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Zhuo Zhang
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Sheng-Yuan Guo
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Chao-Fan Zhao
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Yu Bai
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Yu-Ting Zhu
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Li-Zhen Zhang
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China.
| | - Shang Guo
- Shanxi Institute for Functional Food, Shanxi Agricultural University, Shanxi University, Taiyuan 030006, China.
| | - Gui-Xing Ren
- School of Life Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China; College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China.
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Rezzani R, Favero G, Cominelli G, Pinto D, Rinaldi F. Skin Aging and the Upcoming Role of Ferroptosis in Geroscience. Int J Mol Sci 2024; 25:8238. [PMID: 39125810 PMCID: PMC11311626 DOI: 10.3390/ijms25158238] [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: 07/01/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
The skin is considered the most important organ system in mammals, and as the population ages, it is important to consider skin aging and anti-aging therapeutic strategies. Exposure of the skin to various insults induces significant changes throughout our lives, differentiating the skin of a young adult from that of an older adult. These changes are caused by a combination of intrinsic and extrinsic aging. We report the interactions between skin aging and its metabolism, showing that the network is due to several factors. For example, iron is an important nutrient for humans, but its level increases with aging, inducing deleterious effects on cellular functions. Recently, it was discovered that ferroptosis, or iron-dependent cell death, is linked to aging and skin diseases. The pursuit of new molecular targets for ferroptosis has recently attracted attention. Prevention of ferroptosis is an effective therapeutic strategy for the treatment of diseases, especially in old age. However, the pathological and biological mechanisms underlying ferroptosis are still not fully understood, especially in skin diseases such as melanoma and autoimmune diseases. Only a few basic studies on regulated cell death exist, and the challenge is to turn the studies into clinical applications.
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Affiliation(s)
- Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (G.C.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy; (D.P.); (F.R.)
- Italian Society for the Study of Orofacial Pain (Società Italiana Studio Dolore Orofacciale—SISDO), 25123 Brescia, Italy
| | - Gaia Favero
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (G.C.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy; (D.P.); (F.R.)
| | - Giorgia Cominelli
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (G.C.)
| | - Daniela Pinto
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy; (D.P.); (F.R.)
- Human Microbiome Advanced Project Institute, 20129 Milan, Italy
| | - Fabio Rinaldi
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy; (D.P.); (F.R.)
- Human Microbiome Advanced Project Institute, 20129 Milan, Italy
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Shakel Z, Costa Lima SA, Reis S. Strategies to make human skin models based on cellular senescence for ageing research. Ageing Res Rev 2024; 100:102430. [PMID: 39032611 DOI: 10.1016/j.arr.2024.102430] [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: 03/05/2024] [Revised: 06/25/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Human skin ageing is closely related to the ageing of the whole organism, and it's a continuous multisided process that is influenced not only by genetic and physiological factors but also by the cumulative impact of environmental factors. Currently, there is a scientific community need for developing skin models representing ageing processes to (i) enhance understanding on the mechanisms of ageing, (ii) discover new drugs for the treatment of age-related diseases, and (iii) develop effective dermo-cosmetics. Bioengineers worldwide are trying to reproduce skin ageing in the laboratory aiming to better comprehend and mitigate the senescence process. This review provides details on the main ageing molecular mechanisms and procedures to obtain in vitro aged skin models.
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Affiliation(s)
- Zinaida Shakel
- LAQV, REQUIMTE, Faculty of Pharmacy, University of Porto, Portugal
| | - Sofia A Costa Lima
- LAQV, REQUIMTE, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Portugal.
| | - Salette Reis
- LAQV, REQUIMTE, Faculty of Pharmacy, University of Porto, Portugal
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5
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Luo Y, Bollag WB. The Role of PGC-1α in Aging Skin Barrier Function. Cells 2024; 13:1135. [PMID: 38994987 PMCID: PMC11240425 DOI: 10.3390/cells13131135] [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: 05/20/2024] [Revised: 06/21/2024] [Accepted: 06/28/2024] [Indexed: 07/13/2024] Open
Abstract
Skin provides a physical and immune barrier to protect the body from foreign substances, microbial invasion, and desiccation. Aging reduces the barrier function of skin and its rate of repair. Aged skin exhibits decreased mitochondrial function and prolonged low-level inflammation that can be seen in other organs with aging. Peroxisome proliferator-activated receptor (PPAR)-γ coactivator-1α (PGC-1α), an important transcriptional coactivator, plays a central role in modulating mitochondrial function and antioxidant production. Mitochondrial function and inflammation have been linked to epidermal function, but the mechanisms are unclear. The aim of this review is to discuss the mechanisms by which PGC-1α might exert a positive effect on aged skin barrier function. Initially, we provide an overview of the function of skin under physiological and aging conditions, focusing on the epidermis. We then discuss mitochondrial function, oxidative stress, cellular senescence, and inflamm-aging, the chronic low-level inflammation observed in aging individuals. Finally, we discuss the effects of PGC-1α on mitochondrial function, as well as the regulation and role of PGC-1α in the aging epidermis.
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Affiliation(s)
- Yonghong Luo
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Wendy B Bollag
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Charlie Norwood VA Medical Center, Augusta, GA 30904, USA
- Department of Dermatology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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Snowball JM, Jarrold BB, DeAngelis Y, Li C, Rovito HA, Hare MC, Laughlin T, Evdokiou AL, Oblong JE. Integration of transcriptomics and spatial biology analyses reveals Galactomyces ferment filtrate promotes epidermal interconnectivity via induction of keratinocyte differentiation, proliferation and cellular bioenergetics. Int J Cosmet Sci 2024. [PMID: 38924095 DOI: 10.1111/ics.12991] [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: 04/05/2024] [Revised: 05/10/2024] [Accepted: 05/14/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVE Human skin is the first line of defence from environmental factors such as solar radiation and is susceptible to premature ageing, including a disruption in epidermal differentiation and homeostasis. We evaluated the impact of a Galactomyces Ferment Filtrate (GFF) on epidermal differentiation and response to oxidative stress. METHODS We used transcriptomics, both spatial and traditional, to assess the impact of GFF on epidermal biology and homeostasis in keratinocytes (primary or immortalized) and in ex vivo skin explant tissue. The effect of GFF on cell adhesion rates, cellular ATP levels and proliferation rates were quantitated. Oxidative phosphorylation and glycolytic rates were measured under normal and stress-induced conditions. RESULTS Transcriptomics from keratinocytes and ex vivo skin explants from multiple donors show GFF induces keratinocyte differentiation, skin barrier development and cell adhesion while simultaneously repressing cellular stress and inflammatory related processes. Spatial transcriptomics profiling of ex vivo skin indicated basal keratinocytes at the epidermal-dermal junction and cornifying keratinocytes in the top layer of the epidermis as the primary cell types influenced by GFF treatment. Additionally, GFF significantly increases crosstalk between suprabasal and basal keratinocytes. To support these findings, we show that GFF can significantly increase cell adhesion and proliferation in keratinocytes. GFF also protected overall cellular bioenergetics under metabolic or oxidative stress conditions. CONCLUSION Our findings provide novel insights into cellular differences and epidermal spatial localization in response to GFF, supporting previous findings that this filtrate has a significant impact on epidermal biology and homeostasis, particularly on spatially defined crosstalk. We propose that GFF can help maintain epidermal health by enhancing keratinocyte crosstalk and differentiation/proliferation balance as well as promoting an enhanced response to stress.
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Affiliation(s)
| | | | | | - Chuiying Li
- The Procter & Gamble Company, Cincinnati, Ohio, USA
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7
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Sánchez-Trasviña C, Coronel-Meneses D, Escobar-Fernández AM, Mayolo-Deloisa K. Transdermal microneedle patches as a promising drug delivery system for anti-obesogenic molecules. Front Bioeng Biotechnol 2024; 12:1380537. [PMID: 38919379 PMCID: PMC11196754 DOI: 10.3389/fbioe.2024.1380537] [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] [Received: 02/01/2024] [Accepted: 05/17/2024] [Indexed: 06/27/2024] Open
Abstract
Obesity, characterized by excessive storage of lipids, has become a global pandemic with high incidence levels, and its forecast is not encouraging. Currently, there are different strategies to treat obesity; however, these conventional methods have various limitations. Lifestyle changes may result in poor outcomes due to the complexity of obesity causes, pharmaceutic treatments produce severe side effects, and bariatric surgery is highly invasive. In the search for alternative treatments to fight obesity, transdermal drug delivery systems of anti-obesogenic molecules have gained particular attention. However, the diffusion of molecules through the skin is the main drawback due to the characteristics of different layers of the skin, principally the stratum corneum and its barrier-like behavior. In this sense, microneedles patches (MP) have emerged to overcome this limitation by piercing the skin and allowing drug delivery inside the body. Although MP have been studied for some years, it was not until about 2017 that their potential as anti-obesogenic treatment was reported. This article aims to summarize and analyze the strategies employed to produce MP and to embed the active molecules against obesity. Special attention is focused on the microneedle's material, geometry, array, and additional delivery strategies, like nanoencapsulation. MP are a promising tool to develop an easy-access treatment, avoiding the digestive tract and with the capacity to enhance the anti-obesogenic activity by delivering one or more active molecules.
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Affiliation(s)
- Calef Sánchez-Trasviña
- Tecnologico de Monterrey, Institute for Obesity Research, Monterrey, NL, Mexico
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, NL, Mexico
| | - David Coronel-Meneses
- Tecnologico de Monterrey, Institute for Obesity Research, Monterrey, NL, Mexico
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, NL, Mexico
| | - Aleyda Margarita Escobar-Fernández
- Tecnologico de Monterrey, Institute for Obesity Research, Monterrey, NL, Mexico
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, NL, Mexico
| | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, Institute for Obesity Research, Monterrey, NL, Mexico
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, NL, Mexico
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Chu CQ, Quan T. Fibroblast Yap/Taz Signaling in Extracellular Matrix Homeostasis and Tissue Fibrosis. J Clin Med 2024; 13:3358. [PMID: 38929890 PMCID: PMC11204269 DOI: 10.3390/jcm13123358] [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: 04/17/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
Tissue fibrosis represents a complex pathological condition characterized by the excessive accumulation of collagenous extracellular matrix (ECM) components, resulting in impaired organ function. Fibroblasts are central to the fibrotic process and crucially involved in producing and depositing collagen-rich ECM. Apart from their primary function in ECM synthesis, fibroblasts engage in diverse activities such as inflammation and shaping the tissue microenvironment, which significantly influence cellular and tissue functions. This review explores the role of Yes-associated protein (Yap) and Transcriptional co-activator with PDZ-binding motif (Taz) in fibroblast signaling and their impact on tissue fibrosis. Gaining a comprehensive understanding of the intricate molecular mechanisms of Yap/Taz signaling in fibroblasts may reveal novel therapeutic targets for fibrotic diseases.
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Affiliation(s)
- Cong-Qiu Chu
- Division of Arthritis and Rheumatic Diseases, Oregon Health & Science University, Portland, OR 97239, USA;
- Rheumatology Section, VA Portland Health Care System, Portland, OR 97239, USA
| | - Taihao Quan
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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Kim JY, Quan T. Emerging Perspectives of YAP/TAZ in Human Skin Epidermal and Dermal Aging. Ann Dermatol 2024; 36:135-144. [PMID: 38816974 PMCID: PMC11148314 DOI: 10.5021/ad.23.156] [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: 12/11/2023] [Revised: 01/25/2024] [Accepted: 02/18/2024] [Indexed: 06/01/2024] Open
Abstract
Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are key downstream effectors of the Hippo signaling pathway, which plays a central role in tissue homeostasis, organ development, and regeneration. While the dysregulation of YAP/TAZ has been linked to various human diseases, their involvement in the aging of human skin has only recently begun to manifest. In the skin, the YAP/TAZ effectors emerge as central regulators in maintaining homeostasis of epidermal stem cells and dermal extracellular matrix, and thus intimately linked to skin aging processes. This review underscores recent molecular breakthroughs highlighting how age-related decline of YAP/TAZ activity impacts human epidermal and dermal aging. Gaining insight into the evolving roles of YAP/TAZ in human skin aging presents a promising avenue for the development of innovative therapeutic approaches aimed at enhancing skin health and addressing age-related skin conditions.
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Affiliation(s)
- Jun Young Kim
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Taihao Quan
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA.
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Zhang N, Wei Y, Qu X, Kang L, Liu X. A Case Report of an Elderly Patient With Cushing's Disease and Multiple Chronic Conditions. Cureus 2024; 16:e63277. [PMID: 38947141 PMCID: PMC11212851 DOI: 10.7759/cureus.63277] [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: 06/27/2024] [Indexed: 07/02/2024] Open
Abstract
Cushing's disease (CD) is a rare and serious condition characterized by a persistent increase in cortisol levels, resulting in various complications across multiple bodily systems. Elderly individuals often face a multitude of chronic illnesses and geriatric syndromes, which can complicate the diagnosis and treatment of CD in this demographic. This case study details the presentation of an elderly patient with adrenocorticotropic hormone (ACTH)-dependent CD, who initially presented with an acute exacerbation of chronic obstructive pulmonary disease. The article delves into the unique onset characteristics and treatment strategies for CD in the elderly, providing valuable insights for the comprehensive management of similar clinical cases.
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Affiliation(s)
- Ning Zhang
- Department of Geriatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, CHN
| | - Yuchen Wei
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, CHN
| | - Xuan Qu
- Department of Geriatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, CHN
| | - Lin Kang
- Department of Geriatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, CHN
| | - Xiaohong Liu
- Department of Geriatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, CHN
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11
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Dong Y, Zhang Y, Yu H, Zhou L, Zhang Y, Wang H, Hu Z, Luo S. Poly-l-lactic acid microspheres delay aging of epidermal stem cells in rat skin. Front Immunol 2024; 15:1394530. [PMID: 38881903 PMCID: PMC11177849 DOI: 10.3389/fimmu.2024.1394530] [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: 03/01/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024] Open
Abstract
Objective Injectable skin fillers offer a wider range of options for cutaneous anti-aging and facial rejuvenation. PLLA microspheres are increasingly favored as degradable and long-lasting fillers. The present study focused solely on the effect of PLLA on dermal collagen, without investigating its impact on the epidermis. In this study, we investigated the effects of PLLA microspheres on epidermal stem cells (EpiSCs). Methods Different concentrations of PLLA microspheres on epidermal stem cells (EpiSCs) in vitro through culture, and identification of primary rat EpiSCs. CCK-8 detection, apoptosis staining, flow cytometry, Transwell assay, wound healing assay, q-PCR analysis, and immunofluorescence staining were used to detect the effects of PLLA on EpiSCs. Furthermore, we observed the effect on the epidermis by injecting PLLA into the dermis of the rat skin in vivo. Results PLLA microspheres promote cell proliferation and migration while delaying cell senescence and maintaining its stemness. In vitro, Intradermal injection of PLLA microspheres in the rat back skin resulted in delayed aging, as evidenced by histological and immunohistochemical staining of the skin at 2, 4, and 12 weeks of follow-up. Conclusion This study showed the positive effects of PLLA on rat epidermis and EpiSCs, while providing novel insights into the anti-aging mechanism of PLLA.
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Affiliation(s)
- Yunxian Dong
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Youliang Zhang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Hao Yu
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Lingcong Zhou
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yaan Zhang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Haibin Wang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Zhicheng Hu
- Department of Burns, Wound Repair and Reconstruction, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shengkang Luo
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
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Yamamoto H, Shimomura N, Hasegawa Y. Oral Administration of Nacre Extract from Pearl Oyster Shells Has Anti-Aging Effects on Skin and Muscle, and Extends the Lifespan in SAMP8 Mice. Pharmaceuticals (Basel) 2024; 17:713. [PMID: 38931380 PMCID: PMC11206907 DOI: 10.3390/ph17060713] [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: 05/16/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Pearl oysters have been extensively utilized in pearl production; however, most pearl oyster shells are discarded as industrial waste. In a previous study, we demonstrated that the intraperitoneal administration of pearl oyster shell-derived nacre extract (NE) prevented d-galactose-induced brain and skin aging. In this study, we examined the anti-aging effects of orally administered NE in senescence-accelerated mice (SAMP8). Feeding SAMP8 mice NE prevented the development of aging-related characteristics, such as coarse and dull hair, which are commonly observed in aged mice. Additionally, the NE mitigated muscle aging in SAMP8 mice, such as a decline in grip strength. Histological analysis of skeletal muscle revealed that the NE suppressed the expression of aging markers, cyclin-dependent kinase inhibitor 2A (p16) and cyclin-dependent kinase inhibitor 1 (p21), and increased the expression of sirtuin1 and peroxisome proliferator-activated receptor gamma coactivator 1 (PGC1)- α, which are involved in muscle synthesis. These findings suggest that the oral administration of NE suppresses skeletal muscle aging. Moreover, NE administration suppressed skin aging, including a decline in water content. Interestingly, oral administration of NE significantly extended the lifespan of SAMP8 mice, suggesting that its effectiveness as an anti-aging agent of various tissues including skeletal muscle, skin, and adipose tissue.
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Affiliation(s)
| | | | - Yasushi Hasegawa
- College of Environmental Technology, Muroran Institute of Technology, 27-1 Mizumoto, Muroran 050-8585, Japan; (H.Y.); (N.S.)
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Yu Lin MO, Sampath D, Bosykh DA, Wang C, Wang X, Subramaniam T, Han W, Hong W, Chakraborty S. YAP/TAZ Drive Agrin-Matrix Metalloproteinase 12-Mediated Diabetic Skin Wound Healing. J Invest Dermatol 2024:S0022-202X(24)00391-9. [PMID: 38810954 DOI: 10.1016/j.jid.2024.05.005] [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: 09/05/2023] [Revised: 04/19/2024] [Accepted: 05/06/2024] [Indexed: 05/31/2024]
Abstract
Macroscopic loss of extracellular matrix can lead to chronic defects in skin wound healing, but supplementation of extracellular matrix holds promise for facilitating wound closure, particularly in diabetic wound healing. We recently showed that the extracellular matrix proteoglycan agrin accelerates cutaneous wound healing by improving mechanoperception of migrating keratinocytes and allowing them to respond to mechanical stresses through matrix metalloproteinase 12 (MMP12). RNA-sequencing analysis revealed that in addition to a disorganized extracellular matrix, agrin-depleted skin cells have impaired YAP/TAZ transcriptional outcomes, leading us to hypothesize that YAP/TAZ, as central mechanosensors, drive the functionality of agrin-MMP12 signaling during cutaneous wound repair. In this study, we demonstrate that agrin activates YAP/TAZ during migration of keratinocytes after wounding in vitro and in vivo. Mechanistically, YAP/TAZ sustain agrin and MMP12 protein expression during migration after wounding through positive feedback. YAP/TAZ silencing abolishes agrin-MMP12-mediated force recognition and geometrical constraints. Importantly, soluble agrin therapy accelerates wound closure in diabetic mouse models by engaging MMP12-YAP. Because patients with diabetic foot ulcers and impaired wound healing have reduced expression of agrin-MMP12 that correlates with YAP/TAZ inactivation, we propose that timely activation of YAP/TAZ by soluble agrin therapy can accentuate mechanobiological microenvironments for efficient wound healing, under normal and diabetic conditions.
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Affiliation(s)
| | | | - Dmitriy A Bosykh
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Chengchun Wang
- Institute of Molecular and Cell Biology, Singapore, Singapore
| | - Xiaomeng Wang
- Institute of Molecular and Cell Biology, Singapore, Singapore; Centre for Vision Research, Duke-NUS Medical School, Singapore, Singapore
| | - Tavintharan Subramaniam
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore; Division of Endocrinology, Department of Medicine, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Weiping Han
- Institute of Molecular and Cell Biology, Singapore, Singapore
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Singapore, Singapore.
| | - Sayan Chakraborty
- Institute of Molecular and Cell Biology, Singapore, Singapore; Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA; Program of Developmental Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA.
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14
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Doleckova I, Vidovic T, Jandova L, Gretzmeier C, Navarini AA, MacArthur MR, Goksel O, Nyström A, Ewald CY. Calpain Inhibition Protects against UVB-Induced Degradation of Dermal-Epidermal Junction-Associated Proteins. J Invest Dermatol 2024:S0022-202X(24)00183-0. [PMID: 38490440 DOI: 10.1016/j.jid.2024.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 03/17/2024]
Affiliation(s)
- Iva Doleckova
- Anti-ageing Actives R&D Group, Contipro, Dolní Dobrouč, Czech Republic
| | - Tinka Vidovic
- Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Lenka Jandova
- Anti-ageing Actives R&D Group, Contipro, Dolní Dobrouč, Czech Republic
| | - Christine Gretzmeier
- Department of Dermatology, Medical Faculty, Medical Center, University of Freiburg, Freiburg, Germany
| | - Alexander A Navarini
- Department of Dermatology, University Hospital of Basel, Basel, Switzerland; University Department of Geriatric Medicine, FELIX PLATTER, Basel, Switzerland
| | - Michael R MacArthur
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, USA
| | - Orcun Goksel
- Centre for Image Analysis, Department of Information Technology, Uppsala University, Uppsala, Sweden
| | - Alexander Nyström
- Department of Dermatology, Medical Faculty, Medical Center, University of Freiburg, Freiburg, Germany.
| | - Collin Y Ewald
- Department of Dermatology, University Hospital of Basel, Basel, Switzerland; University Department of Geriatric Medicine, FELIX PLATTER, Basel, Switzerland; Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland.
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15
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Winders S, Lyon DE, Kelly DL, Weaver MT, Yi F, Rezende de Carvalho M, Stechmiller JK. Sleep, Fatigue, and Inflammatory Biomarkers in Older Adults with Chronic Venous Leg Ulcers Receiving Intensive Outpatient Wound Care. Adv Wound Care (New Rochelle) 2024. [PMID: 38062760 DOI: 10.1089/wound.2023.0124] [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] [Indexed: 01/14/2024] Open
Abstract
Objective: Chronic venous ulcers are a relatively common and distressing condition that disproportionately affects older individuals. Along with multiple concomitant issues such as wound drainage, pain, and mobility impairments, individuals with chronic venous leg ulcers (CVLUs) commonly report sleep disturbances and fatigue; however, limited research has examined these symptoms in relation to inflammatory biomarkers in this population over the intensive wound care treatment trajectory. This study aimed at describing the symptoms of sleep and fatigue in older adults with CVLUs receiving intensive wound treatment with weekly debridement and exploring the relationships between these symptoms and tumor necrosis factor-alpha (TNF-α), c-reactive protein (CRP), and interleukin (IL)-6. Approach: Demographics, clinical characteristics, Pittsburgh Sleep Quality Index (PSQI) scores, Brief Fatigue Inventory (BFI), TNF-α, CRP, and IL-6 levels were collected from 84 older adults with CVLUs at three time points (baseline, week 4, and week 8). Data analysis included descriptive statistics and Bayesian estimation of associations. Results: Findings showed a consistent pattern of poor sleep quality and mild fatigue among these individuals. Lower IL-6 levels at week 4 and higher CRP levels at week 8 were linked to poor sleep quality. Higher CRP levels were linked to greater fatigue at baseline and week 8. Sleep and fatigue were correlated at all time points. Innovation and Conclusion: This study highlights the importance of clinicians evaluating sleep and fatigue in those with CVLUs. Further research is needed to validate circulating inflammatory biomarkers to enhance our understanding of sleep and fatigue's role in wound healing.
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Affiliation(s)
- Samantha Winders
- Department of Biobehavioral Nursing and Health Informatics, University of Washington School of Nursing, Seattle, Washington, USA
| | - Debra E Lyon
- College of Nursing Dean's Office, University of Florida College of Nursing, Gainesville, Florida, USA
| | - Debra Lynch Kelly
- College of Nursing Dean's Office, University of Florida College of Nursing, Gainesville, Florida, USA
| | - Michael T Weaver
- University of Florida, Biobehavioral Nursing Science, Gainesville, Florida, USA
| | - Fan Yi
- Department of Mathematics and Statistical Science, University of Idaho, Moscow, Idaho, USA
| | | | - Joyce K Stechmiller
- University of Florida, Biobehavioral Nursing Science, Gainesville, Florida, USA
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16
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Quan T. Human Skin Aging and the Anti-Aging Properties of Retinol. Biomolecules 2023; 13:1614. [PMID: 38002296 PMCID: PMC10669284 DOI: 10.3390/biom13111614] [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: 09/22/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
The skin is the most-extensive and -abundant tissue in the human body. Like many organs, as we age, human skin experiences gradual atrophy in both the epidermis and dermis. This can be primarily attributed to the diminishing population of epidermal stem cells and the reduction in collagen, which is the primary structural protein in the human body. The alterations occurring in the epidermis and dermis due to the aging process result in disruptions to the structure and functionality of the skin. This creates a microenvironment conducive to age-related skin conditions such as a compromised skin barrier, slowed wound healing, and the onset of skin cancer. This review emphasizes the recent molecular discoveries related to skin aging and evaluates preventive approaches, such as the use of topical retinoids. Topical retinoids have demonstrated promise in enhancing skin texture, diminishing fine lines, and augmenting the thickness of both the epidermal and dermal layers.
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Affiliation(s)
- Taihao Quan
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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