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Takaya K, Kishi K. Identification of a new human senescent skin cell marker ribonucleoside-diphosphate reductase subunit M2 B. Biogerontology 2024:10.1007/s10522-024-10135-5. [PMID: 39261410 DOI: 10.1007/s10522-024-10135-5] [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: 07/17/2024] [Accepted: 08/26/2024] [Indexed: 09/13/2024]
Abstract
In skin aging, it has been hypothesized that aging fibroblasts accumulate within the epidermal basal layer, dermis, and subcutaneous fat, causing abnormal tissue remodeling and extracellular matrix dysfunction, thereby inducing an aging-related secretory phenotype (SASP). A new treatment for skin aging involves the specific elimination of senescent skin cells, especially fibroblasts within the dermis and keratinocytes in the basal layer. This requires the identification of specific protein markers of senescent cells, such as ribonucleoside-diphosphate reductase subunit M2 B (RRM2B), which is upregulated in various malignancies in response to DNA stress damage. However, the behavior and role of RRM2B in skin aging remain unclear. Therefore, we examined whether RRM2B functions as a senescence marker using a human dermal fibroblast model of aging. In a model of cellular senescence induced by replicative aging and exposure to ionizing radiation or UVB, RRM2B was upregulated at the gene and protein levels. This was correlated with decreased uptake of the senescence-associated β-galactosidase activity and proliferation marker bromodeoxyuridine. RRM2B upregulation was concurrent with the increased expression of SASP factor genes. Furthermore, using fluorescence flow cytometry, RRM2B-positive cells were recovered more frequently in the aging cell population. In aging human skin, RRM2B was also found to be more abundant in the dermis and epidermal basal layer than other proteins. Therefore, RRM2B may serve as a clinical marker to identify senescent skin cells.
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Affiliation(s)
- Kento Takaya
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Kazuo Kishi
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Boismal F, Peltier S, Ly Ka So S, Chevreux G, Blondel L, Serror K, Setterblab N, Zuelgaray E, Boccara D, Mimoun M, Guere C, Benssussan A, Dorr M, Beauchef G, Vie K, Michel L. Proteomic and secretomic comparison of young and aged dermal fibroblasts highlights cytoskeleton as a key component during aging. Aging (Albany NY) 2024; 16:11776-11795. [PMID: 39197170 PMCID: PMC11386920 DOI: 10.18632/aging.206055] [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: 07/26/2023] [Accepted: 05/29/2024] [Indexed: 08/30/2024]
Abstract
Crucial for skin homeostasis, synthesis and degradation of extracellular matrix components are orchestrated by dermal fibroblasts. During aging, alterations of component expression, such as collagens and enzymes, lead to reduction of the mechanical cutaneous tension and defects of skin wound healing. The aim of this study was to better understand the molecular alterations underwent by fibroblasts during aging by comparing secretomic and proteomic signatures of fibroblasts from young (<35years) and aged (>55years) skin donors, in quiescence or TGF-stimulated conditions, using HLPC/MS. The comparison of the secretome from young and aged fibroblasts revealed that 16 proteins in resting condition, and 11 proteins after a 24h-lasting TGF-β1-treatment, were expressed in significant different ways between the two cell groups (fold change>2, p-value <0.05), with a 77% decrease in the number of secreted proteins in aged cells. Proteome comparison between young and aged fibroblasts identified a significant change of 63 proteins in resting condition, and 73 proteins in TGF-β1-stimulated condition, with a 67% increase in the number of proteins in aged fibroblasts. The majority of the differentially-expressed molecules belongs to the cytoskeleton-associated proteins and aging was characterized by an increase in Coronin 1C (CORO1C), and Filamin B (FLNB) expression in fibroblasts together with a decrease in Cofilin (CFL1), and Actin alpha cardiac muscle 1 (ACTC1) detection in aged cells, these proteins being involved in actin-filament polymerization and sharing co-activity in cell motility. Our present data reinforce knowledge about an age-related alteration in the synthesis of major proteins linked to the migratory and contractile functions of dermal human fibroblasts.
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Affiliation(s)
- Françoise Boismal
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
| | - Sandy Peltier
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | - Sophie Ly Ka So
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | | | - Loïse Blondel
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | - Kévin Serror
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | | | | | - David Boccara
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | - Maurice Mimoun
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | | | - Armand Benssussan
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
| | | | | | | | - Laurence Michel
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Dermatology Department, Saint-Louis Hospital, Paris, France
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Liu J, Qu L, Wang F, Mei Z, Wu X, Wang B, Liu H, He L. A study on the anti-senescent effects of flavones derived from Prinsepia utilis Royle seed residue. JOURNAL OF ETHNOPHARMACOLOGY 2024; 328:118021. [PMID: 38492793 DOI: 10.1016/j.jep.2024.118021] [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: 01/17/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Prinsepia utilis Royle, also known as the Anas fruit, is a unique perennial woody oil plant from Yunnan Province, China. In the ancient texts of Dongba sutras and Yunnan Southern Materia Medica, it has been documented that the local Naxi, Tibetan, and Mosuo communities extensively utilize the root and leaf fruits of green thorns for various purposes. These include treating mild-to-moderate specific dermatitis, moisturising the skin, providing protection against UV damage, aiding childbirth in pregnant women, safeguarding stomach health, reducing the risk of arteriosclerosis, and delaying aging. AIM OF THE STUDY In this study, leftover residues from oil extraction were efficiently reused, and flavonoids were identified during subsequent extraction and separation processes. The anti-senescent effects of flavonoids in P. utilis Royle have not been systematically studied. Therefore, the objective of this study was to explore the anti-senescent properties of the flavonoids obtained from P. utilis Royle. METHODS First, HPLC and other analytical techniques were used to identify the components of the P. utilis Royle flavonoid (PURF). Next, DPPH, hydroxyl radicals, superoxide anion O2-, collagenase, and elastase were initially detected using in vitro biochemical assays. To examine its antioxidant properties, a zebrafish model was used, and to confirm its anti-senescent effects, a d-galactose-induced mouse aging model was employed. The anti-senescent mechanism of PURF was examined using a natural senescence HFF model. Furthermore, the anti-senescent target was confirmed using a 3D full T-Skin™ model. RESULTS In vitro biochemical assays demonstrated that flavones exhibited potent antioxidant activity and anti-senescent potential by inhibiting DPPH, hydroxyl radicals, superoxide anion O2-, collagenase, and elastase. It significantly enhanced the antioxidant effect on zebrafish while suppressing ROS and inflammatory injury, up-regulating COL1A1, COL3A1, AMPK, and mTOR gene expression and down-regulating MMP-9, TGF-β, p21, and p16 gene expression suggesting its potential anti-senescent ability. Findings from the D-galactose-induced aging mouse model showed that PURF greatly increased SOD levels, while simultaneously decreasing HYP and MDA levels. In addition, when PURF was given to the HFF cell and 3D full T-Skin™ model, consistent trends were observed in gene and protein expression, with up-regulation of COL1A1, COL3A1, AMPK, and mTOR genes and down-regulation of TGF-β, MMP-1, MMP-9, p21, and p16 genes. Therefore, these preliminary findings indicate that flavones can modulate AMPK/mTOR/TGF-β signalling pathways to exert its influence. CONCLUSION The kernel residue of natural P. utilis Royle oil extracted from Yunnan province was previously considered agricultural waste, but we successfully extracted and isolated its flavonoid components. Our preliminary studies demonstrated its potential as an environmentally friendly anti-senescent raw material.
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Affiliation(s)
- Junxi Liu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Liping Qu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Feifei Wang
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Zaoju Mei
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Xinlang Wu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Bo Wang
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Haiyang Liu
- Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China
| | - Li He
- Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China.
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Takaya K, Kishi K. Regulation of ENPP5, a senescence-associated secretory phenotype factor, prevents skin aging. Biogerontology 2024; 25:529-542. [PMID: 38436793 DOI: 10.1007/s10522-024-10096-9] [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: 11/30/2023] [Accepted: 01/17/2024] [Indexed: 03/05/2024]
Abstract
Aging negatively affects the appearance and texture of the skin owing to the accumulation of senescent fibroblasts within the dermis. Senescent cells undergo abnormal remodeling of collagen and the extracellular matrix through an inflammatory histolytic senescence-associated secretory phenotype (SASP). Therefore, suppression of SASP in senescent cells is essential for the development of effective skin anti-aging therapies. Ectonucleotide pyrophosphatase/phosphodiesterase family member 5 (ENPP5), an extracellular signaling molecule, has been implicated in vascular aging and apoptosis; however, its role in SASP remains unclear. Therefore, this study aimed to investigate the role of ENPP5 in SASP and skin aging using molecular techniques. We investigated the effects of siRNA-mediated ENPP5 knockdown, human recombinant ENPP5 (rENPP5) treatment, and lentiviral overexpression of ENPP5 on SASP and aging in human skin fibroblasts. Additionally, we investigated the effect of siRNA-mediated ENPP5 knockdown on the skin of C57BL/6 mice. We found that ENPP5 was significantly expressed in replication-aged and otherwise DNA-damaged human skin fibroblasts and that treatment with human rENPP5 and lentiviral overexpression of ENPP5 promoted SASP and senescence. By contrast, siRNA-mediated knockdown of ENPP5 suppressed SASP and the expression of skin aging-related factors. Additionally, ENPP5 knockdown in mouse skin ameliorated the age-related reduction of subcutaneous adipose tissue, the panniculus carnosus muscle layer, and thinning of collagen fibers. Conclusively, these findings suggest that age-related changes may be prevented through the regulation of ENPP5 expression to suppress SASP in aging cells, contributing to the development of anti-aging treatments for the skin.
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Affiliation(s)
- Kento Takaya
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Kazuo Kishi
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Yan X, Bao X, Cheng S, Ba Q, Chang J, Zhou K, Yan X. Anti-aging and rejuvenating effects and mechanism of Dead Sea water in skin. Int J Cosmet Sci 2024; 46:307-317. [PMID: 38212954 DOI: 10.1111/ics.12931] [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: 09/29/2023] [Accepted: 11/04/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVE External environmental stressors and internal factors have a significant impact on the skin, causing inflammation, aging, reduced immunity and other adverse responses. Dead Sea Water (DSW) is well known for its dermatological benefits and has been widely used in dermatological therapy and skin care for conditions such as psoriasis, atopic dermatitis and photoaging. However, the anti-aging and rejuvenating effects of DSW and the related biological pathways involved, which have attracted increasing attention, are not fully understood. The aim of this study is to investigate the anti-aging and rejuvenating effects of DSW and to explore the related potential biological mechanisms of DSW under different environmental conditions. METHODS The effects of DSW were investigated using in vitro human dermal cells and reconstructed skin models. Extracellular matrix (ECM) components and the morphological changes at the dermal-epidermal junction (DEJ) in a 3D human skin model were evaluated after DSW treatment. RNA sequencing (RNA-seq) analysis of human dermal fibroblast models after DSW treatment was performed to explore the potential mechanisms of action of DSW under normal and UV stress conditions. RESULTS The novel findings in this work present the biological functions of DSW, including procollagen-1 and elastin secretion, hemidesmosome increase and the epidermal basal cell regeneration. In addition, GO, KEGG and Reactome analyses reveal the activation of pathways related to ion transmembrane transporter activity, ECM component biosynthesis, senescence-associated secretory phenotype (SASP), DNA repair and autophagy, which are associated with the anti-aging activities of DSW. CONCLUSION Our work provides new perspectives for understanding the anti-aging and rejuvenating effects and mechanisms of DSW. The new findings also provide a theoretical basis for the further development of age-related strategies.
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Affiliation(s)
- Xiaojuan Yan
- Department of Fundamental Research, Fosun Cosmetics (Shanghai) Bio-Technology Co., Ltd, Shanghai, China
| | - Xijun Bao
- Department of Fundamental Research, Fosun Cosmetics (Shanghai) Bio-Technology Co., Ltd, Shanghai, China
| | - Shujun Cheng
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Qian Ba
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Junzhuang Chang
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kanghui Zhou
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiufang Yan
- Department of Fundamental Research, Fosun Cosmetics (Shanghai) Bio-Technology Co., Ltd, Shanghai, China
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6
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Jibing C, Weiping L, Yuwei Y, Bingzheng F, Zhiran X. Exosomal microRNA-Based therapies for skin diseases. Regen Ther 2024; 25:101-112. [PMID: 38178928 PMCID: PMC10765304 DOI: 10.1016/j.reth.2023.12.005] [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: 08/09/2023] [Revised: 12/08/2023] [Accepted: 12/17/2023] [Indexed: 01/06/2024] Open
Abstract
Based on engineered cell/exosome technology and various skin-related animal models, exosomal microRNA (miRNA)-based therapies derived from natural exosomes have shown good therapeutic effects on nine skin diseases, including full-thickness skin defects, diabetic ulcers, skin burns, hypertrophic scars, psoriasis, systemic sclerosis, atopic dermatitis, skin aging, and hair loss. Comparative experimental research showed that the therapeutic effect of miRNA-overexpressing exosomes was better than that of their natural exosomes. Using a dual-luciferase reporter assay, the targets of all therapeutic miRNAs in skin cells have been screened and confirmed. For these nine types of skin diseases, a total of 11 animal models and 21 exosomal miRNA-based therapies have been developed. This review provides a detailed description of the animal models, miRNA therapies, disease evaluation indicators, and treatment results of exosomal miRNA therapies, with the aim of providing a reference and guidance for future clinical trials. There is currently no literature on the merits or drawbacks of miRNA therapies compared with standard treatments.
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Affiliation(s)
| | | | | | - Feng Bingzheng
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xu Zhiran
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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Kita A, Yamamoto S, Saito Y, Chikenji TS. Cellular senescence and wound healing in aged and diabetic skin. Front Physiol 2024; 15:1344116. [PMID: 38440347 PMCID: PMC10909996 DOI: 10.3389/fphys.2024.1344116] [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: 11/25/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Cellular senescence is a biological mechanism that prevents abnormal cell proliferation during tissue repair, and it is often accompanied by the secretion of various factors, such as cytokines and chemokines, known as the senescence-associated secretory phenotype (SASP). SASP-mediated cell-to-cell communication promotes tissue repair, regeneration, and development. However, senescent cells can accumulate abnormally at injury sites, leading to excessive inflammation, tissue dysfunction, and intractable wounds. The effects of cellular senescence on skin wound healing can be both beneficial and detrimental, depending on the condition. Here, we reviewed the functional differences in cellular senescence that emerge during wound healing, chronic inflammation, and skin aging. We also review the latest mechanisms of wound healing in the epidermis, dermis, and subcutaneous fat, with a focus on cellular senescence, chronic inflammation, and tissue regeneration. Finally, we discuss the potential clinical applications of promoting and inhibiting cellular senescence to maximize benefits and minimize detrimental effects.
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Affiliation(s)
- Arisa Kita
- Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Plastic and Reconstructive Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Sena Yamamoto
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Yuki Saito
- Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Japan
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Yu GT, Monie DD, Khosla S, Tchkonia T, Kirkland JL, Wyles SP. Mapping cellular senescence networks in human diabetic foot ulcers. GeroScience 2024; 46:1071-1082. [PMID: 37380899 PMCID: PMC10828272 DOI: 10.1007/s11357-023-00854-x] [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: 12/17/2022] [Accepted: 06/14/2023] [Indexed: 06/30/2023] Open
Abstract
Cellular senescence, a cell fate defined by irreversible cell cycle arrest, has been observed to contribute to chronic age-related conditions including non-healing wounds, such as diabetic foot ulcers. However, the role of cellular senescence in the pathogenesis of diabetic foot ulcers remains unclear. To examine the contribution of senescent phenotypes to these chronic wounds, differential gene and network analyses were performed on publicly available bulk RNA sequencing of whole skin biopsies of wound edge diabetic foot ulcers and uninvolved diabetic foot skin. Wald tests with Benjamini-Hochberg correction were used to evaluate differential gene expression. Results showed that cellular senescence markers, CDKN1A, CXCL8, IGFBP2, IL1A, MMP10, SERPINE1, and TGFA, were upregulated, while TP53 was downregulated in diabetic foot ulcers compared to uninvolved diabetic foot skin. NetDecoder was then used to identify and compare context-specific protein-protein interaction networks using known cellular senescence markers as pathway sources. The diabetic foot ulcer protein-protein interaction network demonstrated significant perturbations with decreased inhibitory interactions and increased senescence markers compared to uninvolved diabetic foot skin. Indeed, TP53 (p53) and CDKN1A (p21) appeared to be key regulators in diabetic foot ulcer formation. These findings suggest that cellular senescence is an important mediator of diabetic foot ulcer pathogenesis.
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Affiliation(s)
- Grace T Yu
- Mayo Clinic Medical Scientist Training Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic Alix School of Medicine, Rochester, MN, USA
| | - Dileep D Monie
- Mayo Clinic Medical Scientist Training Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic Alix School of Medicine, Rochester, MN, USA
| | - Sundeep Khosla
- Division of Endocrinology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA
| | - Tamar Tchkonia
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
- Division of General Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Saranya P Wyles
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA.
- Department of Dermatology, Mayo Clinic, Rochester, MN, USA.
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Song L, Zhang S. Anti-Aging Activity and Modes of Action of Compounds from Natural Food Sources. Biomolecules 2023; 13:1600. [PMID: 38002283 PMCID: PMC10669485 DOI: 10.3390/biom13111600] [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: 09/04/2023] [Revised: 10/21/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
Aging is a natural and inescapable phenomenon characterized by a progressive deterioration of physiological functions, leading to increased vulnerability to chronic diseases and death. With economic and medical development, the elderly population is gradually increasing, which poses a great burden to society, the economy and the medical field. Thus, healthy aging has now become a common aspiration among people over the world. Accumulating evidence indicates that substances that can mediate the deteriorated physiological processes are highly likely to have the potential to prolong lifespan and improve aging-associated diseases. Foods from natural sources are full of bioactive compounds, such as polysaccharides, polyphenols, carotenoids, sterols, terpenoids and vitamins. These bioactive compounds and their derivatives have been shown to be able to delay aging and/or improve aging-associated diseases, thereby prolonging lifespan, via regulation of various physiological processes. Here, we summarize the current understanding of the anti-aging activities of the compounds, polysaccharides, polyphenols, carotenoids, sterols, terpenoids and vitamins from natural food sources, and their modes of action in delaying aging and improving aging-associated diseases. This will certainly provide a reference for further research on the anti-aging effects of bioactive compounds from natural food sources.
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Affiliation(s)
- Lili Song
- Key Laboratory of Biomedical Materials of Zhangjiakou, College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China;
| | - Shicui Zhang
- College of Life and Geographic Sciences, Kashi University, Kashi 844000, China
- Xinjiang Key Laboratory of Biological Resources and Ecology of Pamirs Plateau, Kashi 844000, China
- Department of Marine Biology, Institute of Evolution & Marine Biodiversity, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
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Saewan N, Jimtaisong A, Panyachariwat N, Chaiwut P. In Vitro and In Vivo Anti-Aging Effect of Coffee Berry Nanoliposomes. Molecules 2023; 28:6830. [PMID: 37836673 PMCID: PMC10574267 DOI: 10.3390/molecules28196830] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Encapsulation of bioactive compounds in the liposome system provides several advantages, such as enhancing the stability and lowering the toxicity of active compounds. Coffee berry extract (CBE) has previously been established to have in vitro anti-aging properties and to retard the aging of human skin. The purposes of this study were to encapsulate CBE in nanoliposomes and to assess its stability and in vitro anti-aging potential in human dermal fibroblasts (HDF), as well as in healthy human skin. In the HDF model, anti-aging potential was determined by nitric oxide (NO) and collagenase inhibition assays and a superoxide dismutase (SOD) activity assay, whereas in healthy human skin (in vivo), the skin elasticity and brightness were examined. First, liposomal CBE (L-CBE) was created with a particle size of 117.33 ± 2.91 nm, a polydispersity index (PDI) of 0.36 ± 0.03, and a zeta potential of -56.13 ± 1.87 mV. The percentages of encapsulation efficacy (%EE) and loading efficacy (%LE) were 71.26 ± 3.12% and 2.18 ± 0.18%, respectively. After undergoing a 12-week stability test, the L-CBE retained more phenolic content than the free CBE when stored at 4 °C, room temperature, and 45 °C. Compared to free CBE, the L-CBE demonstrated a more consistent, elevated, and prolonged release of phenolics from the lipid system. In human dermal fibroblasts, L-CBE showed lower toxicity, and at its maximum nontoxic concentration (10 mg/mL), it exhibited slightly higher anti-aging effects than CBE, including NO inhibition, enhanced SOD activity, and anti-collagenase activities. In clinical trials (30 volunteer subjects), none of the participants' skin was irritated when the L-CBE, the CBE, or base creams were applied. After 2 weeks of application, the L-CBE and CBE creams both demonstrated an improvement in skin elasticity and a reduction in melanin levels, and after 4 weeks, L-CBE cream showed a significantly greater improvement in skin elasticity and lightening. The results demonstrate that the encapsulation of the CBE in liposomal systems could increase its stability and skin penetration, reduce its toxicity, and maintain its anti-aging effect, which is powerful enough to be exploited in anti-aging and whitening agents for application in cosmetics and cosmeceuticals.
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Affiliation(s)
- Nisakorn Saewan
- School of Cosmetic Science, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand; (A.J.); (N.P.); (P.C.)
- Cosmetic and Beauty Innovations for Sustainable Development (CBIS) Research Group, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand
| | - Ampa Jimtaisong
- School of Cosmetic Science, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand; (A.J.); (N.P.); (P.C.)
- Cosmetic and Beauty Innovations for Sustainable Development (CBIS) Research Group, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand
| | - Nattakan Panyachariwat
- School of Cosmetic Science, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand; (A.J.); (N.P.); (P.C.)
- Cosmetic and Beauty Innovations for Sustainable Development (CBIS) Research Group, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand
| | - Phanuphong Chaiwut
- School of Cosmetic Science, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand; (A.J.); (N.P.); (P.C.)
- Green Cosmetic Technology Research Group, Mae Fah Luang University, 333, Moo.1, Thasud, Muang, Chiang Rai 57100, Thailand
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Scharffetter-Kochanek K, Wang Y, Makrantonaki E, Crisan D, Wlaschek M, Geiger H, Maity P. [Skin aging-cellular senescence : What is the future?]. DERMATOLOGIE (HEIDELBERG, GERMANY) 2023; 74:645-656. [PMID: 37638987 DOI: 10.1007/s00105-023-05201-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/04/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Cellular senescence is the main cause of skin and organ aging and is associated with a wide range of aging-related diseases. OBJECTIVES To understand which senolytics, senomorphics, and cell-based therapies have been developed to alleviate and even rejuvenate skin aging and reduce cellular senescence. METHODS Basic literature for the mode of action of senolytics and senomorphics and their clinical perspectives in daily routine are discussed. RESULTS Various causes lead to mitochondrial dysfunction and the activation of pro-aging signaling pathways, which eventually lead to cellular senescence with degradation of structural proteins of the dermal connective tissue and severe suppression of regenerative stem cell niches of the skin. CONCLUSIONS Depletion of senescent cells suppress skin aging and enforce rejuvenation of skin and other organs and their function. The removal of senescent cells by cells of the native immune system is severely disturbed during aging. Selected senolytics and senomorphics are approved and are already on the market.
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Affiliation(s)
- Karin Scharffetter-Kochanek
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland.
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland.
- Arc-Aging Research Center, Universität Ulm, Ulm, Deutschland.
| | - Yongfang Wang
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland
| | - Evgenia Makrantonaki
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland
- Derma Zentrum Wildeshausen, Wildeshausen, Deutschland
| | - Diana Crisan
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland
| | - Meinhard Wlaschek
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland
- Arc-Aging Research Center, Universität Ulm, Ulm, Deutschland
| | - Hartmut Geiger
- Arc-Aging Research Center, Universität Ulm, Ulm, Deutschland
- Institut für Molekulare Medizin, Universität Ulm, Ulm, Deutschland
| | - Pallab Maity
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
- Labor für experimentelle Dermatologie der Klinik für Dermatologie und Allergologie, Universität Ulm, Ulm, Deutschland
- Arc-Aging Research Center, Universität Ulm, Ulm, Deutschland
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12
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Hwang SB, Park HJ, Lee BH. Collagen Hydrolysate from the Scales of Mozambique Tilapia ( Oreochromis mossambicus) Improve Hair and Skin Health by Alleviating Oxidative Stress and Inflammation and Promoting Hair Growth and Extracellular Matrix Factors. Mar Drugs 2023; 21:475. [PMID: 37755088 PMCID: PMC10533131 DOI: 10.3390/md21090475] [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: 07/14/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Fish-derived collagen hydrolysate (CH) has shown promise in improving hair and skin health. Therefore, this study sought to comprehensively assess the effects of CH extracted from Mozambique tilapia (Oreochromis mossambicus) scales on hair and skin using in vitro and in vivo models. Human dermal papilla cells (hDPCs) were used for antioxidant and gene expression analyses, while C57BL/6 mice were orally administered CH for six weeks to assess hair growth patterns. The mice were divided into four groups: negative control (NC; distilled water), positive control (PC; 1 mg/kg finasteride), CH500 (500 mg/kg BW CH), and CH1000 (1000 mg/kg BW CH). CH mitigated catalase activity reduction in hDPCs, increased IGF-1 and VEGF levels, and decreased TGF-β1, TNF-α, and IL-1β expression. In vivo, CH treatment improved hair growth index, length, diameter, weight, and density. Scanning electron microscopy revealed reduced hair damage. Moreover, CH up-regulated IGF-1, VEGF, Elastin, and HAS2 mRNA expression while down-regulating TNF-α and IL-1β. CH enhanced hair shine, growth, and skin health while alleviating inflammation. These findings demonstrate the potential of CH in alleviating oxidative stress, promoting hair growth, and enhancing skin health, both in vitro and in vivo. Fish-derived CH offers a cost-effective and bioavailable option for improving hair and skin health.
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Affiliation(s)
| | | | - Bog-Hieu Lee
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Republic of Korea; (S.B.H.); (H.J.P.)
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13
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Augustyniak A, McMahon H. Effect of Marine-Derived Saccharides on Human Skin Fibroblasts and Dermal Papilla Cells. Mar Drugs 2023; 21:330. [PMID: 37367655 DOI: 10.3390/md21060330] [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: 04/27/2023] [Revised: 05/19/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
The skin is the largest organ of the human body, composed of a diverse range of cell types, non-cellular components, and an extracellular matrix. With aging, molecules that are part of the extracellular matrix undergo qualitative and quantitative changes and the effects, such as a loss of skin firmness or wrinkles, can be visible. The changes caused by the aging process do not only affect the surface of the skin, but also extend to skin appendages such as hair follicles. In the present study, the ability of marine-derived saccharides, L-fucose and chondroitin sulphate disaccharide, to support skin and hair health and minimize the effects of intrinsic and extrinsic aging was investigated. The potential of the tested samples to prevent adverse changes in the skin and hair through stimulation of natural processes, cellular proliferation, and production of extracellular matrix components collagen, elastin, or glycosaminoglycans was investigated. The tested compounds, L-fucose and chondroitin sulphate disaccharide, supported skin and hair health, especially in terms of anti-aging effects. The obtained results indicate that both ingredients support and promote the proliferation of dermal fibroblasts and dermal papilla cells, provide cells with a supply of sulphated disaccharide GAG building blocks, increase ECM molecule production (collagen and elastin) by HDFa, and support the growth phase of the hair cycle (anagen).
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Affiliation(s)
- Aleksandra Augustyniak
- Circular Bioeconomy Research Group, Shannon Applied Biotechnology Centre, Munster Technological University-Kerry, Clash, V92CX88 Tralee, Co. Kerry, Ireland
| | - Helena McMahon
- Circular Bioeconomy Research Group, Shannon Applied Biotechnology Centre, Munster Technological University-Kerry, Clash, V92CX88 Tralee, Co. Kerry, Ireland
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14
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Zonari A, Brace LE, Al-Katib K, Porto WF, Foyt D, Guiang M, Cruz EAO, Marshall B, Gentz M, Guimarães GR, Franco OL, Oliveira CR, Boroni M, Carvalho JL. Senotherapeutic peptide treatment reduces biological age and senescence burden in human skin models. NPJ AGING 2023; 9:10. [PMID: 37217561 PMCID: PMC10203313 DOI: 10.1038/s41514-023-00109-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 05/08/2023] [Indexed: 05/24/2023]
Abstract
Cellular senescence is known to play a role in age-related skin function deterioration which potentially influences longevity. Here, a two-step phenotypic screening was performed to identify senotherapeutic peptides, leading to the identification of Peptide (Pep) 14. Pep 14 effectively decreased human dermal fibroblast senescence burden induced by Hutchinson-Gilford Progeria Syndrome (HGPS), chronological aging, ultraviolet-B radiation (UVB), and etoposide treatment, without inducing significant toxicity. Pep 14 functions via modulation of PP2A, an understudied holoenzyme that promotes genomic stability and is involved in DNA repair and senescence pathways. At the single-cell level, Pep 14 modulates genes that prevent senescence progression by arresting the cell cycle and enhancing DNA repair, which consequently reduce the number of cells progressing to late senescence. When applied on aged ex vivo skin, Pep 14 promoted a healthy skin phenotype with structural and molecular resemblance to young ex vivo skin, decreased the expression of senescence markers, including SASP, and reduced the DNA methylation age. In summary, this work shows the safe reduction of the biological age of ex vivo human skins by a senomorphic peptide.
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Affiliation(s)
| | | | | | - William F Porto
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Porto Reports, Brasília, 72236-011, DF, Brazil
| | | | | | | | | | | | - Gabriela Rapozo Guimarães
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, 20231-050, RJ, Brazil
| | - Octavio L Franco
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Centre of Proteomic Analyses and Biochemistry, Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasilia, 70790-160, DF, Brazil
- S-Inova Biotech, Biotechnology Program, Catholic University Dom Bosco, Campo Grande, 79117-010, MS, Brazil
- Molecular Pathology Program, University of Brasilia, Brasilia, 70.910-900, DF, Brazil
| | | | - Mariana Boroni
- OneSkin, Inc., San Francisco, CA, USA
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, 20231-050, RJ, Brazil
| | - Juliana L Carvalho
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Interdisciplinary Biosciences Laboratory, Faculty of Medicine, University of Brasília, Brasília, 70.910-900, DF, Brazil
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15
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Zorina A, Zorin V, Isaev A, Kudlay D, Vasileva M, Kopnin P. Dermal Fibroblasts as the Main Target for Skin Anti-Age Correction Using a Combination of Regenerative Medicine Methods. Curr Issues Mol Biol 2023; 45:3829-3847. [PMID: 37232716 DOI: 10.3390/cimb45050247] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
This article includes the data from current studies regarding the pathophysiological mechanisms of skin aging and the regenerative processes occurring in the epidermis and dermis at the molecular and cellular level, mainly, the key role of dermal fibroblasts in skin regeneration. Analyzing these data, the authors proposed the concept of skin anti-age therapy that is based on the correction of age-related skin changes by stimulating regenerative processes at the molecular and cellular level. The main target of the skin anti-age therapy is dermal fibroblasts (DFs). A variant of the cosmetological anti-age program using the combination of laser and cellular methods of regenerative medicine is presented in the paper. The program includes three stages of implementation and defines the tasks and methods of each stage. Thus, laser technologies allow one to remodel the collagen matrix and create favorable conditions for DFs functions, whereas the cultivated autologous dermal fibroblasts replenish the pool of mature DFs decreasing with age and are responsible for the synthesis of components of the dermal extracellular matrix. Finally, the use of autological platelet-rich plasma (PRP) enables to maintenance of the achieved results by stimulating DF function. It has been shown that growth factors/cytokines contained in α-granules of platelets injected into the skin bind to the corresponding transmembrane receptors on the surface of DFs and stimulate their synthetic activity. Thus, the consecutive, step-by-step application of the described methods of regenerative medicine amplifies the effect on the molecular and cellular aging processes and thereby allows one to optimize and prolong the clinical results of skin rejuvenation.
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Affiliation(s)
- Alla Zorina
- The Human Stem Cells Institute, Moscow 119333, Russia
- SKINCELL LLC, Moscow 119333, Russia
| | - Vadim Zorin
- The Human Stem Cells Institute, Moscow 119333, Russia
- SKINCELL LLC, Moscow 119333, Russia
| | - Artur Isaev
- The Human Stem Cells Institute, Moscow 119333, Russia
| | - Dmitry Kudlay
- Department of Pharmacology, The I.M. Sechenov First Moscow State Medical University (The Sechenov University), Moscow 119991, Russia
| | - Maria Vasileva
- The N.N. Blokhin National Medical Research Oncology Center, The Ministry of Health of Russia, Moscow 115478, Russia
| | - Pavel Kopnin
- The N.N. Blokhin National Medical Research Oncology Center, The Ministry of Health of Russia, Moscow 115478, Russia
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16
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Takaya K, Asou T, Kishi K. Identification of Apolipoprotein D as a Dermal Fibroblast Marker of Human Aging for Development of Skin Rejuvenation Therapy. Rejuvenation Res 2023; 26:42-50. [PMID: 36571249 DOI: 10.1089/rej.2022.0056] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The current understanding of skin aging is that senescent fibroblasts accumulate within the dermis and subcutaneous fat to cause abnormal tissue remodeling and extracellular matrix dysfunction, triggering a senescence-associated secretory phenotype (SASP). A novel therapeutic approach to prevent skin aging is to specifically eliminate senescent dermal fibroblasts; this requires the identification of specific protein markers for senescent cells. Apolipoprotein D (ApoD) is involved in lipid metabolism and antioxidant responses and is abundantly expressed in tissues affected by age-related diseases such as Alzheimer's disease and atherosclerosis. However, its behavior and role in skin aging remain unclear. In this study, we examined whether ApoD functions as a marker of aging using human dermal fibroblast aging models. In cellular senescence models induced through replicative aging and ionizing radiation exposure, ApoD expression was upregulated at the gene and protein levels and correlated with senescence-associated β-galactosidase activity and the decreased uptake of the proliferation marker bromodeoxyuridine, which was concomitant with the upregulation of SASP genes. Furthermore, ApoD-positive cells were found to be more abundant in the aging human dermis using fluorescence flow cytometry. These results suggest that ApoD is a potential clinical marker for identifying aging dermal fibroblasts.
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Affiliation(s)
- Kento Takaya
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Toru Asou
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Kishi
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
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17
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Gauthier V, Kyriazi M, Nefla M, Pucino V, Raza K, Buckley CD, Alsaleh G. Fibroblast heterogeneity: Keystone of tissue homeostasis and pathology in inflammation and ageing. Front Immunol 2023; 14:1137659. [PMID: 36926329 PMCID: PMC10011104 DOI: 10.3389/fimmu.2023.1137659] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
Fibroblasts, derived from the embryonic mesenchyme, are a diverse array of cells with roles in development, homeostasis, repair, and disease across tissues. In doing so, fibroblasts maintain micro-environmental homeostasis and create tissue niches by producing a complex extracellular matrix (ECM) including various structural proteins. Although long considered phenotypically homogenous and functionally identical, the emergence of novel technologies such as single cell transcriptomics has allowed the identification of different phenotypic and cellular states to be attributed to fibroblasts, highlighting their role in tissue regulation and inflammation. Therefore, fibroblasts are now recognised as central actors in many diseases, increasing the need to discover new therapies targeting those cells. Herein, we review the phenotypic heterogeneity and functionality of these cells and their roles in health and disease.
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Affiliation(s)
- Vincent Gauthier
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,The Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Maria Kyriazi
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Meriam Nefla
- The Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Valentina Pucino
- The Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Karim Raza
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.,Department of Rheumatology, Sandwell and West, Birmingham Hospitals NHS Trust, Birmingham, United Kingdom
| | - Christopher D Buckley
- The Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Ghada Alsaleh
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom.,The Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, United Kingdom
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18
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Aging Fibroblasts Adversely Affect Extracellular Matrix Formation via the Senescent Humoral Factor Ependymin-Related Protein 1. Cells 2022; 11:cells11233749. [PMID: 36497009 PMCID: PMC9736265 DOI: 10.3390/cells11233749] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Skin senescence is characterized by a decrease in extracellular matrix and the accumulation of senescent fibroblasts in the dermis, and their secretion of humoral factors. Ependymin-related protein 1 (EPDR1) is involved in abnormal fibroblast metabolism and collagen deposition, however, its relation to skin aging is unclear. We investigated whether and how EPDR1 is involved in age-related dermal deterioration. When young dermal fibroblasts and senescent cells were co-cultured in a semipermeable membrane separation system, the young fibroblasts showed decreased gene expression of collagen type I α1 chain (COL1A1) and elastin, and increased expression of matrix metalloproteinase (MMP)1 and MMP3. Senescence marker expression and EPDR1 production were increased in the culture medium of senescent cells. Treatment of young fibroblasts with recombinant EPDR1, enhanced matrix-related gene expression and suppressed COL1A1 expression, whereas EPDR1 knockdown had the opposite effects. EPDR1 gene and protein expression were increased in aged skin, compared to young skin. These results suggest that senescent cells affect nearby fibroblasts, in part through EPDR1 secretion, and exert negative effects on matrix production in the dermis. These results may lead to the discovery of potential candidate targets in the development of skin anti-aging therapies.
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19
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Kaur P, Otgonbaatar A, Ramamoorthy A, Chua EHZ, Harmston N, Gruber J, Tolwinski NS. Combining stem cell rejuvenation and senescence targeting to synergistically extend lifespan. Aging (Albany NY) 2022; 14:8270-8291. [PMID: 36287172 PMCID: PMC9648810 DOI: 10.18632/aging.204347] [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: 08/08/2022] [Accepted: 09/26/2022] [Indexed: 11/25/2022]
Abstract
Why biological age is a major risk factor for many of the most important human diseases remains mysterious. We know that as organisms age, stem cell pools are exhausted while senescent cells progressively accumulate. Independently, induction of pluripotency via expression of Yamanaka factors (Oct4, Klf4, Sox2, c-Myc; OKSM) and clearance of senescent cells have each been shown to ameliorate cellular and physiological aspects of aging, suggesting that both processes are drivers of organismal aging. But stem cell exhaustion and cellular senescence likely interact in the etiology and progression of age-dependent diseases because both undermine tissue and organ homeostasis in different if not complementary ways. Here, we combine transient cellular reprogramming (stem cell rejuvenation) with targeted removal of senescent cells to test the hypothesis that simultaneously targeting both cell-fate based aging mechanisms will maximize life and health span benefits. We find that OKSM extends lifespan and show that both interventions protect the intestinal stem cell pool, lower inflammation, activate pro-stem cell signaling pathways, and synergistically improve health and lifespan. Our findings suggest that a combination therapy, simultaneously replacing lost stem cells and removing senescent cells, shows synergistic potential for anti-aging treatments. Our finding that transient expression of both is the most effective suggests that drug-based treatments in non-genetically tractable organisms will likely be the most translatable.
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Affiliation(s)
- Prameet Kaur
- Division of Science, Yale-NUS College, Singapore 138527, Singapore
| | | | | | | | - Nathan Harmston
- Division of Science, Yale-NUS College, Singapore 138527, Singapore
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jan Gruber
- Division of Science, Yale-NUS College, Singapore 138527, Singapore
- Department of Biochemistry, NUS, Singapore 117596, Singapore
| | - Nicholas S. Tolwinski
- Division of Science, Yale-NUS College, Singapore 138527, Singapore
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
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20
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Wang M, Wu P, Huang J, Liu W, Qian H, Sun Y, Shi H. Skin cell-derived extracellular vesicles: a promising therapeutic strategy for cutaneous injury. BURNS & TRAUMA 2022; 10:tkac037. [PMID: 36267497 PMCID: PMC9580071 DOI: 10.1093/burnst/tkac037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/12/2022] [Accepted: 07/15/2022] [Indexed: 06/16/2023]
Abstract
Wound healing refers to the healing process that occurs after the skin and other tissues are separated or damaged by internal or external forces. It is a complex combination of tissue regeneration, granulation tissue hyperplasia, and scar formation, and shows the synergistic effects of these processes. After skin damage, the environment around the wound and the cells at site of the damage respond immediately, and a range of cytokines and growth factors are released. In cutaneous injury, extracellular vesicle (EV) signaling plays a vital role in the healing process via paracrine and endocrine mechanisms. EVs are natural intercellular and inter-organ communication tools that carry various bioactive substances for message exchange. Stem cells and stem cell EVs facilitate tissue repair, showing promising potential in regenerative medicine. Nevertheless, EVs derived from specific skin tissue cells, such as epidermal cells, fibroblasts, vascular endothelial cells and inflammatory cells, also play important roles in cutaneous tissue repair. Here, we describe the characteristics of wound healing, concentrating on the production and functions of EVs derived from specific skin cells, and provide new ideas for wound therapy using EVs.
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Affiliation(s)
- Min Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Peipei Wu
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Jin Huang
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Wenhui Liu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Yaoxiang Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Hui Shi
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
- Aoyang Institute of Cancer, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu 215100, China
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21
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Healthspan Extension through Innovative Genetic Medicines. Plast Reconstr Surg 2022; 150:49S-57S. [PMID: 36170436 PMCID: PMC9512234 DOI: 10.1097/prs.0000000000009674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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22
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Jarrold BB, Tan CYR, Ho CY, Soon AL, Lam TT, Yang X, Nguyen C, Guo W, Chew YC, DeAngelis YM, Costello L, De Los Santos Gomez P, Przyborski S, Bellanger S, Dreesen O, Kimball AB, Oblong JE. Early onset of senescence and imbalanced epidermal homeostasis across the decades in photoexposed human skin: Fingerprints of inflammaging. Exp Dermatol 2022; 31:1748-1760. [DOI: 10.1111/exd.14654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/11/2022] [Accepted: 07/29/2022] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Chin Yee Ho
- A*STAR Skin Research Labs Singapore City Singapore
| | - Ai Ling Soon
- A*STAR Skin Research Labs Singapore City Singapore
| | - TuKiet T. Lam
- Keck MS & Proteomics Resource Yale School of Medicine New Haven Connecticut USA
| | | | | | - Wei Guo
- Zymo Research Corporation Irvine California USA
| | | | | | | | | | | | | | | | - Alexa B. Kimball
- Beth Israel Deaconess Medical Center and Harvard Medical School Boston Massachusetts USA
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23
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Abstract
The aging process encompasses gradual and continuous changes at the cellular level that slowly accumulate with age. The signs of aging include many physiological changes in both skin and hair such as fine lines, wrinkles, age spots, hair thinning and hair loss. The aim of the current study was to investigate the anti-aging potential of coffee berry extract (CBE) on human dermal fibroblast (HDF) and hair follicle dermal papilla (HFDP) cells. Coffee berry was extracted by 50% ethanol and determined for chemical constituents by HPLC technique. Cytotoxicity of the extract was examined on both cells by MTT assay. Then, HDF cells were used to evaluate antioxidant properties by using superoxide dismutase activity (SOD) and nitric oxide inhibition as well as anti-collagenase inhibition assays. The effectiveness of anti-hair loss properties was investigated in HFDP cells by considering cell proliferation, 5α-reductase inhibition (5AR), and growth factor expression. The results showed that caffeine and chlorogenic acid were identified as major constituents in CBE. CBE had lower toxicity and cell proliferation than caffeine and chlorogenic acid on both cells. CBE showed SOD and nitric oxide inhibition activities that were higher than those of caffeine but lower than those of chlorogenic acid. Interestingly, CBE had the highest significant anti-collagenase activity, and its 5AR inhibition activity was comparable to that of chlorogenic acid, which was higher than caffeine. CBE also stimulated hair-related gene expression, especially insulin-like growth factor 1 (IGF-1), keratinocyte growth factor (KGF) and vascular endothelial growth factor (VEGF). The results confirmed that CBE provided anti-aging activity on both skin and hair cells and could be beneficial for applications in cosmeceuticals.
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24
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Pan Y, Gu Z, Lyu Y, Yang Y, Chung M, Pan X, Cai S. Link between senescence and cell fate: Senescence-associated secretory phenotype (SASP) and its effects on stem cell fate transition. Rejuvenation Res 2022; 25:160-172. [PMID: 35658548 DOI: 10.1089/rej.2022.0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Senescence is a form of durable cell cycle arrest elicited in response to a wide range of stimuli. Senescent cells remain metabolically active and secrete a variety of factors collectively termed senescence-associated secretory phenotype (SASP). SASP is highly pleiotropic and can impact numerous biological processes in which it has both beneficial and deleterious roles. The underlying mechanisms by which SASP exerts its pleiotropic influence remain largely unknown. SASP serves as an environmental factor, which regulates stem cell differentiation and alters its routine. The latter can potentially be accomplished through dedifferentiation, transdifferentiation, or reprogramming. Behavioral changes that cells undergo when exposed to SASP are involved in several senescence-associated physiological and pathological phenomena. These findings provide clues for identifying possible interventions to reduce the deleterious effects without interfering in the beneficial outcomes. Here, we discuss the multifaced effects of SASP and the changes occurring in cellular states upon exposure to SASP factors.
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Affiliation(s)
- Yu Pan
- Shenzhen University, 47890, Shenzhen, Guangdong, China;
| | - Zhenzhen Gu
- Shenzhen University, 47890, Shenzhen, Guangdong, China;
| | - Yansi Lyu
- Shenzhen University, 47890, Shenzhen, Guangdong, China;
| | - Yi Yang
- Shenzhen University, 47890, Shenzhen, Guangdong, China;
| | - Manhon Chung
- Shanghai Jiao Tong University School of Medicine, 56694, Shanghai, China;
| | - Xiaohua Pan
- Shenzhen University, 47890, Shenzhen, Guangdong, China;
| | - Sa Cai
- Shenzhen University, 47890, 3688 Nanhai Avenue, Nanshan District, Shenzhen, Shenzhen, China, 518060;
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25
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Zorina A, Zorin V, Kudlay D, Kopnin P. Age-Related Changes in the Fibroblastic Differon of the Dermis: Role in Skin Aging. Int J Mol Sci 2022; 23:ijms23116135. [PMID: 35682813 PMCID: PMC9181700 DOI: 10.3390/ijms23116135] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 02/06/2023] Open
Abstract
Skin aging is a multi-factorial process that affects nearly every aspect of skin biology and function. The processes developing in the skin during aging are based on fundamental molecular mechanisms associated with fibroblasts, the main cellular population of the dermis. It has been revealed that the amount of fibroblasts decreases markedly with age and their functional activity is also reduced. This inevitably leads to a decrease in the regenerative abilities of the skin and the progression of its aging. In this review we consider the mechanisms underlying these processes, mainly the changes observed with age in the stem/progenitor cells that constitute the fibroblastic differon of the dermis and form their microenvironment (niches). These changes lead to the depletion of stem cells, which, in turn, leads to a decrease in the number of differentiated (mature) dermal fibroblasts responsible for the production of the dermal extracellular matrix and its remodeling. We also describe in detail DNA damages, their cellular and systemic consequences, molecular mechanisms of DNA damage response, and also the role of fibroblast senescence in skin aging.
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Affiliation(s)
- Alla Zorina
- Human Stem Cells Institute, 119333 Moscow, Russia; (A.Z.); (V.Z.)
| | - Vadim Zorin
- Human Stem Cells Institute, 119333 Moscow, Russia; (A.Z.); (V.Z.)
| | - Dmitry Kudlay
- Department of Pharmacology, Institute of Pharmacy, I. M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia;
| | - Pavel Kopnin
- N. N. Blokhin National Medical Research Oncology Center, Ministry of Health of Russia, 115478 Moscow, Russia
- Correspondence: ; Tel.: +7-49-9324-1739
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26
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Meqbel BRM, Gomes M, Omer A, Gallouzi IE, Horn HF. LINCing Senescence and Nuclear Envelope Changes. Cells 2022; 11:1787. [PMID: 35681483 PMCID: PMC9179861 DOI: 10.3390/cells11111787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 01/27/2023] Open
Abstract
The nuclear envelope (NE) has emerged as a nexus for cellular organization, signaling, and survival. Beyond its role as a barrier to separate the nucleoplasm from the cytoplasm, the NE's role in supporting and maintaining a myriad of other functions has made it a target of study in many cellular processes, including senescence. The nucleus undergoes dramatic changes in senescence, many of which are driven by changes in the NE. Indeed, Lamin B1, a key NE protein that is consistently downregulated in senescence, has become a marker for senescence. Other NE proteins have also been shown to play a role in senescence, including LINC (linker of nucleoskeleton and cytoskeleton) complex proteins. LINC complexes span the NE, forming physical connections between the cytoplasm to the nucleoplasm. In this way, they integrate nuclear and cytoplasmic mechanical signals and are essential not only for a variety of cellular functions but are needed for cell survival. However, LINC complex proteins have been shown to have a myriad of functions in addition to forming a LINC complex, often existing as nucleoplasmic or cytoplasmic soluble proteins in a variety of isoforms. Some of these proteins have now been shown to play important roles in DNA repair, cell signaling, and nuclear shape regulation, all of which are important in senescence. This review will focus on some of these roles and highlight the importance of LINC complex proteins in senescence.
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Affiliation(s)
- Bakhita R. M. Meqbel
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar;
| | - Matilde Gomes
- KAUST Smart-Health Initiative and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah 21589, Saudi Arabia; (M.G.); (I.E.G.)
| | - Amr Omer
- Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada;
| | - Imed E. Gallouzi
- KAUST Smart-Health Initiative and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah 21589, Saudi Arabia; (M.G.); (I.E.G.)
- Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada;
| | - Henning F. Horn
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar;
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27
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Zhelavskyi MM, Kernychnyi SP, Dmytriv OY, Betlinska TV. Cellular aging and immunity. UKRAINIAN JOURNAL OF VETERINARY AND AGRICULTURAL SCIENCES 2022. [DOI: 10.32718/ujvas5-1.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Science is constantly evolving and updated with current data on cell biology. The cellular aging phenomenon should be considered an evolutionary mechanism of the biological regulation of all living organisms. Factors initiating cellular aging are variable. Each cell type can respond differently to the activation factors of cellular aging. In recent decades, science has been supplemented with new data that provide a deeper understanding of cellular and molecular mechanisms of cellular aging and the formation of immune homeostasis. There is a real prospect of using effective means of its regulation. In recent years, scientists have come close to discovering the mechanisms of cellular aging. Factors and mechanisms of cell regeneration are more deeply revealed. Scientists are also better aware of the phylogeny and ontogenesis of immune processes and the role of immune factors in developing pathologies. Researchers are increasingly focusing on modern diagnostic methods and xenotherapy. However, the specific factors of immunoregulation and the interaction of microphages, macrophages, and lymphocytes with other body cells are not yet fully understood. Accordingly, this requires further in-depth study. This review reviews the current literature on cellular aging and its regulatory mechanisms. The authors also present the results of their research on the mechanisms of immune responses in reproductive pathology. They draw parallels with modern scientific theories and interpret research. We will also focus on the issues that need to be addressed in the near future for the progressive development of this field of science. Thus, the study of the mechanisms of cellular aging and the development of effective means of hay therapy today requires further painstaking work. Despite significant advances in preclinical studies, many questions remain about the practical use of the drugs. This is especially true in the medicine of oncology, neurology, and cardiology. Nevertheless, scientists will be able to use pharmacological agents to influence cell division, differentiation, and determination in the future. We also hope to have developed effective means of immunotherapy of diseases. The molecular mechanisms of cell aging and mediators involved in the mechanisms of cell aging and death are being studied in detail. The field of research contains countless fascinating studies that are sure to be discovered.
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28
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Elevated skin senescence in young mice causes delayed wound healing. GeroScience 2022; 44:1871-1878. [DOI: 10.1007/s11357-022-00551-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/18/2022] [Indexed: 12/17/2022] Open
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29
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Li T, Lu H, Zhou L, Jia M, Zhang L, Wu H, Shan L. Growth factors-based platelet lysate rejuvenates skin against ageing through NF-κB signalling pathway: In vitro and in vivo mechanistic and clinical studies. Cell Prolif 2022; 55:e13212. [PMID: 35274780 PMCID: PMC9055903 DOI: 10.1111/cpr.13212] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 12/22/2021] [Accepted: 02/15/2022] [Indexed: 01/02/2023] Open
Abstract
Introduction Platelets benefit tissue regeneration by secreting growth factors, and platelet products, for example, platelet lysate (PL), have been clinically applied for tissue rejuvenation. To determine the anti‐ageing efficacy and mechanism of human PL (hPL) on skin, this study conducted clinical retrospective analysis, nude mice‐based in vivo study and human dermal fibroblasts (HDFs)‐based in vitro study. Methods Flow cytometry was employed for quality control of hPL, and ELISA was used for quantification of growth factors (EGF, IGF‐1, PDGF and TGF‐β) in hPL. After d‐galactose modelling, skin texture grading, histopathological observation, immunofluorescence analysis and oxidative stress assays were conducted on nude mice, while SA‐β‐gal staining, CCK‐8 and wound healing assays were conducted on HDFs. qPCR and western blot were conducted to clarify hPL's mechanism. Results The clinical retrospective data showed that hPL obviously rejuvenated human skin appearances without adverse events. The animal data showed that hPL exerted rejuvenative effects on skin, and the cellular data showed that hPL significantly promoted the proliferation and migration of HDFs and suppressed senescence‐associated secretory protein secretion and senescence state of senescent HDFs by suppressing NF‐κB pathway. The NF‐κB‐dependent mechanism was verified positively by using P65 siRNA and negatively by using prostratin. Furthermore, EGF, IGF‐1, PDGF and TGF‐β were found as the main ingredients in hPL, which contributed to the efficacy and mechanism of hPL. Conclusion This study provided novel knowledge of hPL, making it ideal for skin rejuvenation.
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Affiliation(s)
- Ting Li
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Plastic and Aesthetic Center, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Haishan Lu
- Department of Dermatology, PLA 903 Hospital, Hangzhou, China
| | - Li Zhou
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ming Jia
- Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lei Zhang
- Department of Plastic and Aesthetic Center, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Huiling Wu
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Plastic and Aesthetic Center, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Letian Shan
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China.,Cell Resource Bank and Integrated Cell Preparation Center of Xiaoshan District, Hangzhou Regional Cell Preparation Center (Shangyu Biotechnology Co., Ltd), Hangzhou, China
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30
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Costello L, Dicolandrea T, Tasseff R, Isfort R, Bascom C, von Zglinicki T, Przyborski S. Tissue engineering strategies to bioengineer the ageing skin phenotype in vitro. Aging Cell 2022; 21:e13550. [PMID: 35037366 PMCID: PMC8844123 DOI: 10.1111/acel.13550] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/14/2021] [Accepted: 12/29/2021] [Indexed: 11/29/2022] Open
Abstract
Human skin ageing is a complex and heterogeneous process, which is influenced by genetically determined intrinsic factors and accelerated by cumulative exposure to extrinsic stressors. In the current world ageing demographic, there is a requirement for a bioengineered ageing skin model, to further the understanding of the intricate molecular mechanisms of skin ageing, and provide a distinct and biologically relevant platform for testing actives and formulations. There have been many recent advances in the development of skin models that recapitulate aspects of the ageing phenotype in vitro. This review encompasses the features of skin ageing, the molecular mechanisms that drive the ageing phenotype, and tissue engineering strategies that have been utilised to bioengineer ageing skin in vitro.
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Affiliation(s)
| | | | - Ryan Tasseff
- Procter and Gamble Mason Business Center Cincinnati Ohio USA
| | - Robert Isfort
- Procter and Gamble Mason Business Center Cincinnati Ohio USA
| | - Charlie Bascom
- Procter and Gamble Mason Business Center Cincinnati Ohio USA
| | - Thomas von Zglinicki
- Institute for Cell and Molecular Sciences Newcastle University Newcastle Upon Tyne UK
| | - Stefan Przyborski
- Department of Biosciences Durham University Durham UK
- Reprocell Europe Glasgow, Durham UK
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31
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Raffaele M, Vinciguerra M. The costs and benefits of senotherapeutics for human health. THE LANCET. HEALTHY LONGEVITY 2022; 3:e67-e77. [PMID: 36098323 DOI: 10.1016/s2666-7568(21)00300-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/09/2021] [Accepted: 11/21/2021] [Indexed: 12/24/2022] Open
Abstract
Cellular senescence is a major contributor to age-related diseases in humans; however, it also has a beneficial role in physiological and pathological processes, including wound healing, host immunity, and tumour suppression. Reducing the burden of cell senescence in animal models of cardiometabolic disorders, inflammatory conditions, neurodegenerative diseases, and cancer using pharmaceutical approaches that selectively target senescent cells (ie, senolytics) or that suppress senescence-associated secretory phenotype (ie, senomorphics) holds great promise for the management of chronic age-associated conditions. Although studies have provided evidence that senolytics or senomorphics are effective at decreasing the number of senescent cells in humans, the short-term and long-term side-effects of these therapies are largely unknown. In this Review, we systematically discuss the senolytics and senomorphics that have been investigated in clinical trials or have been used off-label, presenting their various adverse effects. Despite the potential of senotherapeutics to transform anti-ageing medicine, a cautionary approach regarding unwanted dose-dependent side-effects should be adopted.
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Affiliation(s)
- Marco Raffaele
- International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic
| | - Manlio Vinciguerra
- International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic; Division of Medicine, University College London, London, UK; Research Institute of the Medical University of Varna, Varna, Bulgaria.
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32
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Boyajian JL, Ghebretatios M, Schaly S, Islam P, Prakash S. Microbiome and Human Aging: Probiotic and Prebiotic Potentials in Longevity, Skin Health and Cellular Senescence. Nutrients 2021; 13:nu13124550. [PMID: 34960102 PMCID: PMC8705837 DOI: 10.3390/nu13124550] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023] Open
Abstract
The role of the microbiome in human aging is important: the microbiome directly impacts aging through the gastrointestinal system. However, the microbial impact on skin has yet to be fully understood. For example, cellular senescence is an intrinsic aging process that has been recently associated with microbial imbalance. With age, cells become senescent in response to stress wherein they undergo irreversible growth arrest while maintaining high metabolic activity. An accumulation of senescent cells has been linked to various aging and chronic pathologies due to an overexpression of the senescence-associated secretory phenotype (SASP) comprised of proinflammatory cytokines, chemokines, growth factors, proteases, lipids and extracellular matrix components. In particular, dermatological disorders may be promoted by senescence as the skin is a common site of accumulation. The gut microbiota influences cellular senescence and skin disruption through the gut-skin axis and secretion of microbial metabolites. Metabolomics can be used to identify and quantify metabolites involved in senescence. Moreover, novel anti-senescent therapeutics are warranted given the poor safety profiles of current pharmaceutical drugs. Probiotics and prebiotics may be effective alternatives, considering the relationship between the microbiome and healthy aging. However, further research on gut composition under a senescent status is needed to develop immunomodulatory therapies.
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33
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Lee H, Hong Y, Kim M. Structural and Functional Changes and Possible Molecular Mechanisms in Aged Skin. Int J Mol Sci 2021; 22:ijms222212489. [PMID: 34830368 PMCID: PMC8624050 DOI: 10.3390/ijms222212489] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 01/18/2023] Open
Abstract
Skin aging is a complex process influenced by intrinsic and extrinsic factors. Together, these factors affect the structure and function of the epidermis and dermis. Histologically, aging skin typically shows epidermal atrophy due to decreased cell numbers. The dermis of aged skin shows decreased numbers of mast cells and fibroblasts. Fibroblast senescence contributes to skin aging by secreting a senescence-associated secretory phenotype, which decreases proliferation by impairing the release of essential growth factors and enhancing degradation of the extracellular matrix through activation of matrix metalloproteinases (MMPs). Several molecular mechanisms affect skin aging including telomere shortening, oxidative stress and MMP, cytokines, autophagic control, microRNAs, and the microbiome. Accumulating evidence on the molecular mechanisms of skin aging has provided clinicians with a wide range of therapeutic targets for treating aging skin.
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Affiliation(s)
| | | | - Miri Kim
- Correspondence: ; Tel.: +82-3779-1056
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34
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Ghadaouia S, Olivier MA, Martinez A, Kientega T, Qin J, Lambert-Lanteigne P, Cardin GB, Autexier C, Malaquin N, Rodier F. Homologous recombination-mediated irreversible genome damage underlies telomere-induced senescence. Nucleic Acids Res 2021; 49:11690-11707. [PMID: 34725692 PMCID: PMC8599762 DOI: 10.1093/nar/gkab965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/28/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Loss of telomeric DNA leads to telomere uncapping, which triggers a persistent, p53-centric DNA damage response that sustains a stable senescence-associated proliferation arrest. Here, we show that in normal cells telomere uncapping triggers a focal telomeric DNA damage response accompanied by a transient cell cycle arrest. Subsequent cell division with dysfunctional telomeres resulted in sporadic telomeric sister chromatid fusions that gave rise to next-mitosis genome instability, including non-telomeric DNA lesions responsible for a stable, p53-mediated, senescence-associated proliferation arrest. Unexpectedly, the blocking of Rad51/RPA-mediated homologous recombination, but not non-homologous end joining (NHEJ), prevented senescence despite multiple dysfunctional telomeres. When cells approached natural replicative senescence, interphase senescent cells displayed genome instability, whereas near-senescent cells that underwent mitosis despite the presence of uncapped telomeres did not. This suggests that these near-senescent cells had not yet acquired irreversible telomeric fusions. We propose a new model for telomere-initiated senescence where tolerance of telomere uncapping eventually results in irreversible non-telomeric DNA lesions leading to stable senescence. Paradoxically, our work reveals that senescence-associated tumor suppression from telomere shortening requires irreversible genome instability at the single-cell level, which suggests that interventions to repair telomeres in the pre-senescent state could prevent senescence and genome instability.
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Affiliation(s)
- Sabrina Ghadaouia
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Marc-Alexandre Olivier
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Aurélie Martinez
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Tibila Kientega
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Jian Qin
- Department of Anatomy and Cell Biology, McGill University, Montreal, QC, H3A 0C7, Canada.,Jewish General Hospital, Lady Davis Institute, Montreal, QC, H3T 1E2, Canada
| | | | - Guillaume B Cardin
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Chantal Autexier
- Department of Anatomy and Cell Biology, McGill University, Montreal, QC, H3A 0C7, Canada.,Jewish General Hospital, Lady Davis Institute, Montreal, QC, H3T 1E2, Canada
| | - Nicolas Malaquin
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada
| | - Francis Rodier
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada.,Institut du cancer de Montréal, Montreal, QC, H2X 0A9, Canada.,Department of Radiology, Radio-Oncology and Nuclear Medicine, Université de Montréal, Montreal, QC, H3T 1J4, Canada
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35
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Low E, Alimohammadiha G, Smith LA, Costello LF, Przyborski SA, von Zglinicki T, Miwa S. How good is the evidence that cellular senescence causes skin ageing? Ageing Res Rev 2021; 71:101456. [PMID: 34487917 PMCID: PMC8524668 DOI: 10.1016/j.arr.2021.101456] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/25/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022]
Abstract
Skin is the largest organ of the body with important protective functions, which become compromised with time due to both intrinsic and extrinsic ageing processes. Cellular senescence is the primary ageing process at cell level, associated with loss of proliferative capacity, mitochondrial dysfunction and significantly altered patterns of expression and secretion of bioactive molecules. Intervention experiments have proven cell senescence as a relevant cause of ageing in many organs. In case of skin, accumulation of senescence in all major compartments with ageing is well documented and might be responsible for most, if not all, the molecular changes observed during ageing. Incorporation of senescent cells into in-vitro skin models (specifically 3D full thickness models) recapitulates changes typically associated with skin ageing. However, crucial evidence is still missing. A beneficial effect of senescent cell ablation on skin ageing has so far only been shown following rather unspecific interventions or in transgenic mouse models. We conclude that evidence for cellular senescence as a relevant cause of intrinsic skin ageing is highly suggestive but not yet completely conclusive.
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Affiliation(s)
- Evon Low
- Ageing Biology Laboratories, Newcastle University Biosciences Institute, Newcastle University, Newcastle upon Tyne NE4 5PL, UK
| | - Ghazaleh Alimohammadiha
- Ageing Biology Laboratories, Newcastle University Biosciences Institute, Newcastle University, Newcastle upon Tyne NE4 5PL, UK
| | - Lucy A Smith
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - Lydia F Costello
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - Stefan A Przyborski
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - Thomas von Zglinicki
- Ageing Biology Laboratories, Newcastle University Biosciences Institute, Newcastle University, Newcastle upon Tyne NE4 5PL, UK.
| | - Satomi Miwa
- Ageing Biology Laboratories, Newcastle University Biosciences Institute, Newcastle University, Newcastle upon Tyne NE4 5PL, UK
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36
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Kowald A, Kirkwood TBL. Senolytics and the compression of late-life mortality. Exp Gerontol 2021; 155:111588. [PMID: 34637949 DOI: 10.1016/j.exger.2021.111588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 10/02/2021] [Accepted: 10/04/2021] [Indexed: 01/01/2023]
Abstract
Senescent cells play an important role in mammalian ageing and in the etiology of age-related diseases. Treatment of mice with senolytics - drugs that selectively remove senescent cells - causes an extension of median lifespan but has little effect on maximum lifespan. Postponement of some mortality to later ages, without a corresponding increase in maximum mortality, can be termed 'compression of mortality'. When we fit the standard Gompertz mortality model to the survival data following senolytic treatment, we find an increase in the slope parameter, commonly described as the 'actuarial ageing rate'. These observations raise important questions about the actions of senolytic treatments and their effects on health and survival, which are not yet sufficiently understood. To explore how the survival data from senolytics experiments might be explained, we combine a recent exploration of the evolutionary basis of cellular senescence with theoretical consideration of the molecular processes that might be involved. We perform numerical simulations of senescent cell accumulation and senolytic treatment in an ageing population. The simulations suggest that while senolytics diminish the burden of senescent cells, they may also impair the general repair capacity of the organism, leading to a faster accumulation post-treatment of new senescent cells. Our results suggest a framework to address the benefits and possible side effects of senolytic therapies, with the potential to aid in the design of optimal treatment regimens.
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Affiliation(s)
- Axel Kowald
- UK National Innovation Centre for Ageing, The Catalyst, 3 Science Square, Newcastle University, Newcastle upon Tyne NE4 5TG, UK; Rostock University Medical Center, Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA), Rostock, Germany.
| | - Thomas B L Kirkwood
- UK National Innovation Centre for Ageing, The Catalyst, 3 Science Square, Newcastle University, Newcastle upon Tyne NE4 5TG, UK; Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2200, Denmark.
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37
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Pulido T, Velarde MC, Alimirah F. The senescence-associated secretory phenotype: Fueling a wound that never heals. Mech Ageing Dev 2021; 199:111561. [PMID: 34411604 DOI: 10.1016/j.mad.2021.111561] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/29/2021] [Accepted: 08/12/2021] [Indexed: 12/15/2022]
Abstract
Wound healing is impaired with advanced age and certain chronic conditions, such as diabetes and obesity. Moreover, common cancer treatments, including chemotherapy and radiation, can cause unintended tissue damage and impair wound healing. Available wound care treatments are not always effective, as some wounds fail to heal or recur after treatment. Hence, a more thorough understanding of the pathophysiology of chronic, nonhealing wounds may offer new ideas for the development of effective wound care treatments. Cancers are sometimes referred to as wounds that never heal, sharing mechanisms similar to wound healing. We describe in this review how cellular senescence and the senescence-associated secretory phenotype (SASP) contribute to chronic wounds versus cancer.
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Affiliation(s)
- Tanya Pulido
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Michael C Velarde
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, 1101, Philippines.
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38
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Durant F, Whited JL. Finding Solutions for Fibrosis: Understanding the Innate Mechanisms Used by Super-Regenerator Vertebrates to Combat Scarring. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100407. [PMID: 34032013 PMCID: PMC8336523 DOI: 10.1002/advs.202100407] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/12/2021] [Indexed: 05/08/2023]
Abstract
Soft tissue fibrosis and cutaneous scarring represent massive clinical burdens to millions of patients per year and the therapeutic options available are currently quite limited. Despite what is known about the process of fibrosis in mammals, novel approaches for combating fibrosis and scarring are necessary. It is hypothesized that scarring has evolved as a solution to maximize healing speed to reduce fluid loss and infection. This hypothesis, however, is complicated by regenerative animals, which have arguably the most remarkable healing abilities and are capable of scar-free healing. This review explores the differences observed between adult mammalian healing that typically results in fibrosis versus healing in regenerative animals that heal scarlessly. Each stage of wound healing is surveyed in depth from the perspective of many regenerative and fibrotic healers so as to identify the most important molecular and physiological variances along the way to disparate injury repair outcomes. Understanding how these powerful model systems accomplish the feat of scar-free healing may provide critical therapeutic approaches to the treatment or prevention of fibrosis.
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Affiliation(s)
- Fallon Durant
- Department of Stem Cell and Regenerative BiologyHarvard UniversityCambridgeMA02138USA
| | - Jessica L. Whited
- Department of Stem Cell and Regenerative BiologyHarvard UniversityCambridgeMA02138USA
- The Harvard Stem Cell InstituteCambridgeMA02138USA
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Fernandez C, Burgos A, Morales D, Rosales-Rojas R, Canelo J, Vergara-Jaque A, Vieira GV, da Silva RAA, Sales KU, Conboy MJ, Bae EJ, Park KS, Torres VA, Garrido M, Cerda O, Conboy IM, Cáceres M. TMPRSS11a is a novel age-altered, tissue specific regulator of migration and wound healing. FASEB J 2021; 35:e21597. [PMID: 33908663 DOI: 10.1096/fj.202002253rrr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/23/2021] [Accepted: 03/31/2021] [Indexed: 01/11/2023]
Abstract
Aging is a gradual biological process characterized by a decrease in cellular and organism functions. Aging-related processes involve changes in the expression and activity of several proteins. Here, we identified the transmembrane protease serine 11a (TMPRSS11a) as a new age-specific protein that plays an important role in skin wound healing. TMPRSS11a levels increased with age in rodent and human skin and gingival samples. Strikingly, overexpression of TMPRSS11a decreased cell migration and spreading, and inducing cellular senescence. Mass spectrometry, bioinformatics, and functional analyses revealed that TMPRSS11a interacts with integrin β1 through an RGD sequence contained within the C-terminal domain and that this motif was relevant for cell migration. Moreover, TMPRSS11a was associated with cellular senescence, as shown by overexpression and downregulation experiments. In agreement with tissue-specific expression of TMPRSS11a, shRNA-mediated downregulation of this protein improved wound healing in the skin, but not in the skeletal muscle of old mice, where TMPRSS11a is undetectable. Collectively, these findings indicate that TMPRSS11a is a tissue-specific factor relevant for wound healing, which becomes elevated with aging, promoting cellular senescence and inhibiting cell migration and skin repair.
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Affiliation(s)
- Christian Fernandez
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Andres Burgos
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Diego Morales
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Roberto Rosales-Rojas
- Center for Bioinformatics, Simulation and Modeling (CBSM), Faculty of Engineering, Universidad de Talca, Talca, Chile
| | - Javiera Canelo
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Ariela Vergara-Jaque
- Center for Bioinformatics, Simulation and Modeling (CBSM), Faculty of Engineering, Universidad de Talca, Talca, Chile.,Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Gabriel Viliod Vieira
- Departament of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | | | - Katiuchia Uzzun Sales
- Departament of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Michael J Conboy
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, CA, USA
| | - Eun Ji Bae
- Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Kang-Sik Park
- Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Vicente A Torres
- Institute for Research in Dental Sciences, Faculty of Dentistry, Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
| | - Mauricio Garrido
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Oscar Cerda
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,The Wound Repair, Treatment and Health (WoRTH) Initiative, Santiago, Chile
| | - Irina M Conboy
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, CA, USA
| | - Mónica Cáceres
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.,The Wound Repair, Treatment and Health (WoRTH) Initiative, Santiago, Chile
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40
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Attenuation of age-elevated blood factors by repositioning plasmapheresis: A novel perspective and approach. Transfus Apher Sci 2021; 60:103162. [PMID: 34083162 DOI: 10.1016/j.transci.2021.103162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aging is associated with the impairment of stem cell activation, leading to the functional decline of tissues and increasing the risk for age-associated diseases. The old, damaged or unrepaired tissues disturb distant tissue homeostasis by secreting factors into the circulation, which may not only serve as biomarkers for specific age-associated pathologies but also induce a variety of degenerative phenotypes. In this review, we summarize and discuss systemic determinants that perpetuate age-related tissue dysfunction. We further elaborate on the effects of attenuating these circulating factors by highlighting recent advances which utilize plasmapheresis in a pre-clinical or clinical setting. Overall, we postulate that repositioning therapeutic plasma exchange (TPE) to dilute the systemic factors, which become deleterious at their age-elevated levels, could be a rapidly effective rejuvenation therapy that recalibrates crucial signaling pathways to a youthful state.
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41
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Wang G, Cheng X, Zhang J, Liao Y, Jia Y, Qing C. Possibility of inducing tumor cell senescence during therapy. Oncol Lett 2021; 22:496. [PMID: 33981358 PMCID: PMC8108274 DOI: 10.3892/ol.2021.12757] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/17/2021] [Indexed: 12/17/2022] Open
Abstract
The treatment options for cancer include surgery, radiotherapy and chemotherapy. However, the traditional approach of high-dose chemotherapy brings tremendous toxic side effects to patients, as well as potentially causing drug resistance. Drug resistance affects cell proliferation, cell senescence and apoptosis. Cellular senescence refers to the process in which cells change from an active proliferative status to a growth-arrested status. There are multiple factors that regulate this process and cellular senescence is activated by various pathways. Senescent cells present specific characteristics, such as an increased cell volume, flattened cell body morphology, ceased cell division and the expression of β-galactosidase. Tumor senescence can be categorized into replicative senescence and premature senescence. Cellular senescence may inhibit the occurrence and development of tumors, serving as an innovative strategy for the treatment of cancer. The present review mainly focuses on senescent biomarkers, methods for the induction of cellular senescence and its possible application in the treatment of cancer.
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Affiliation(s)
- Guohui Wang
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Xianliang Cheng
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Jingyi Zhang
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Yuan Liao
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Yinnong Jia
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Chen Qing
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
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42
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Zhang L, Zhang S, Song H, Li B. Ingestion of collagen hydrolysates alleviates skin chronological aging in an aged mouse model by increasing collagen synthesis. Food Funct 2021; 11:5573-5580. [PMID: 32520042 DOI: 10.1039/d0fo00153h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although the use of collagen hydrolysates (CHs) as nutraceutical agents to protect skin against photoaging has been widely investigated, little is known about their effects on skin chronological aging and the underlying mechanism. Nutritional supplementation, such as collagen and related hydrolysates, might have beneficial effects on chronologically aged skin just as on photoaged skin. Hence, 13-month-old female Kunming mice ingested CHs for eight weeks to evaluate the effects of CHs on ameliorating skin chronological aging. CHs were enzymatically prepared using alcalase or collagenase, named ACH and CCH, respectively. The results showed that CHs or proline intake had no obvious effects on skin moisture and hyaluronic acid contents. However, ACHs significantly decreased skin laxity, increased collagen I content, normalized the ratio of collagen I/III and repaired dermal collagen fibers in a dose-dependent manner. At an identical dose, ACH showed an advantage over CCH or proline in significantly increasing collagen I content. Further study indicated that CHs mainly improved skin condition by activating the transforming growth factor β (TGF-β)/Smad signaling pathway to promote the synthesis of collagen I rather than inhibiting collagen I degradation by deregulating activator protein-1 (AP-1). The results indicated that CHs could benefit skin in both extrinsic and intrinsic aging as active dietary supplements.
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Affiliation(s)
- Ling Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Siqi Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Hongdong Song
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Bo Li
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. and Beijing Higher Institution Engineering Research Centre of Animal Product, Beijing 100083, China
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43
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Pilkington SM, Bulfone-Paus S, Griffiths CE, Watson RE. Inflammaging and the Skin. J Invest Dermatol 2021; 141:1087-1095. [DOI: 10.1016/j.jid.2020.11.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/09/2020] [Accepted: 11/02/2020] [Indexed: 12/19/2022]
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44
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Ding X, Kakanj P, Leptin M, Eming SA. Regulation of the Wound Healing Response during Aging. J Invest Dermatol 2021; 141:1063-1070. [DOI: 10.1016/j.jid.2020.11.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/30/2020] [Accepted: 11/16/2020] [Indexed: 12/20/2022]
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45
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Hu Z, Yang Y, Fang L, Zhou J, Zhang H. Insight into the dichotomous regulation of STING activation in immunotherapy. Immunopharmacol Immunotoxicol 2021; 43:126-137. [PMID: 33618600 DOI: 10.1080/08923973.2021.1890118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) signaling pathway (cGAS-STING) is a hub linking innate immunity and adaptive immunity against pathogen infection by inducing the production of type I interferon (IFN-I). It also plays pivotal roles in modulating tumorigenesis by ensuring the antigen presentation, T cell priming, activation, and tumor regression. Given its antitumor immune properties, cGAS-STING has attracted intense focus and several STING agonists have entered into clinical trials. However, some problems still exist when activating STING for use in oncological indications. It is remarkable that multiple downstream cytokines such as TNF-α, IL-6 may lead to inflammatory disease and even tumor metastasis in practical trials. Besides, there is a synergistic effect when STING agonists are combined with other immunotherapies. In this review, we discussed the advanced understanding between STING and anti-tumor immunity, as well as a variety of promising clinical treatment strategies.
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Affiliation(s)
- Zhaoxue Hu
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
| | - Yifei Yang
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
| | - Lincheng Fang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
| | - Jinpei Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
| | - Huibin Zhang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
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46
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Connective Tissue and Fibroblast Senescence in Skin Aging. J Invest Dermatol 2021; 141:985-992. [PMID: 33563466 DOI: 10.1016/j.jid.2020.11.010] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/28/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
There is increasing evidence that skin aging is significantly enforced by the accumulation of senescent dermal fibroblasts. Various stressors damaging macromolecules inside and outside fibroblasts are responsible. In addition, NK cells fail to adequately remove senescent (SEN) fibroblasts from tissues. SEN fibroblasts by the release of the proinflammatory, tissue degrading senescent-associated secretory phenotype factors and vesicles with distinct cargo impact on their endogenous niche and spread senescence and skin aging. In this review, we will further discuss less noticed facets, including the plasticity of distinct dermal fibroblast phenotypes, the underestimated impact of the extracellular matrix itself, and the depletion of fibroblast subsets on skin homeostasis and aging.
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47
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Fitsiou E, Pulido T, Campisi J, Alimirah F, Demaria M. Cellular Senescence and the Senescence-Associated Secretory Phenotype as Drivers of Skin Photoaging. J Invest Dermatol 2020; 141:1119-1126. [PMID: 33349436 DOI: 10.1016/j.jid.2020.09.031] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 01/10/2023]
Abstract
Chronic exposure to UVR is known to disrupt tissue homeostasis, accelerate the onset of age-related phenotypes, and increase the risk for skin cancer-a phenomenon defined as photoaging. In this paper, we review the current knowledge on how UV exposure causes cells to prematurely enter cellular senescence. We describe the mechanisms contributing to the accumulation of senescent cells in the skin and how the persistence of cellular senescence can promote impaired regenerative capacity, chronic inflammation, and tumorigenesis associated with photoaging. We conclude by highlighting the potential of senolytic drugs in delaying the onset and progression of age-associated phenotypes in the skin.
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Affiliation(s)
- Eleni Fitsiou
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, The Netherlands
| | - Tanya Pulido
- Buck Institute for Research on Aging, Novato, California, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, California, USA; Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | | | - Marco Demaria
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, The Netherlands.
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48
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Narzt MS, Pils V, Kremslehner C, Nagelreiter IM, Schosserer M, Bessonova E, Bayer A, Reifschneider R, Terlecki-Zaniewicz L, Waidhofer-Söllner P, Mildner M, Tschachler E, Cavinato M, Wedel S, Jansen-Dürr P, Nanic L, Rubelj I, El-Ghalbzouri A, Zoratto S, Marchetti-Deschmann M, Grillari J, Gruber F, Lämmermann I. Epilipidomics of Senescent Dermal Fibroblasts Identify Lysophosphatidylcholines as Pleiotropic Senescence-Associated Secretory Phenotype (SASP) Factors. J Invest Dermatol 2020; 141:993-1006.e15. [PMID: 33333126 DOI: 10.1016/j.jid.2020.11.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023]
Abstract
During aging, skin accumulates senescent cells. The transient presence of senescent cells, followed by their clearance by the immune system, is important in tissue repair and homeostasis. The persistence of senescent cells that evade clearance contributes to the age-related deterioration of the skin. The senescence-associated secretory phenotype of these cells contains immunomodulatory molecules that facilitate clearance but also promote chronic damage. Here, we investigated the epilipidome-the oxidative modifications of phospholipids-of senescent dermal fibroblasts, because these molecules are among the bioactive lipids that were recently identified as senescence-associated secretory phenotype factors. Using replicative- and stress- induced senescence protocols, we identified lysophosphatidylcholines as universally elevated in senescent fibroblasts, whereas other oxidized lipids displayed a pattern that was characteristic for the used senescence protocol. When we tested the lysophosphatidylcholines for senescence-associated secretory phenotype activity, we found that they elicit chemokine release in nonsenescent fibroblasts but also interfere with toll-like receptor 2 and 6/CD36 signaling and phagocytic capacity in macrophages. Using matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry imaging, we localized two lysophosphatidylcholine species in aged skin. This suggests that lysophospholipids may facilitate immune evasion and low-grade chronic inflammation in skin aging.
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Affiliation(s)
- Marie-Sophie Narzt
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Linz and Vienna, Austria
| | - Vera Pils
- Department of Dermatology, Medical University of Vienna, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Christopher Kremslehner
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria
| | - Ionela-Mariana Nagelreiter
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Center for Brain Research, Department of Molecular Neurosciences, Medical University of Vienna, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Emilia Bessonova
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Alina Bayer
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Raffaela Reifschneider
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Lucia Terlecki-Zaniewicz
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Petra Waidhofer-Söllner
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Erwin Tschachler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Maria Cavinato
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Sophia Wedel
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Lucia Nanic
- Ruder Boskovic Institute, Division of Molecular Biology, Laboratory for Molecular and Cellular Biology, Zagreb, Croatia
| | - Ivica Rubelj
- Ruder Boskovic Institute, Division of Molecular Biology, Laboratory for Molecular and Cellular Biology, Zagreb, Croatia
| | | | - Samuele Zoratto
- Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Martina Marchetti-Deschmann
- Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Johannes Grillari
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Linz and Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Florian Gruber
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria.
| | - Ingo Lämmermann
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
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49
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Shin W, Rosin NL, Sparks H, Sinha S, Rahmani W, Sharma N, Workentine M, Abbasi S, Labit E, Stratton JA, Biernaskie J. Dysfunction of Hair Follicle Mesenchymal Progenitors Contributes to Age-Associated Hair Loss. Dev Cell 2020; 53:185-198.e7. [PMID: 32315612 DOI: 10.1016/j.devcel.2020.03.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 01/06/2020] [Accepted: 03/25/2020] [Indexed: 12/16/2022]
Abstract
Skin aging is accompanied by hair loss due to impairments in hair follicle (HF) epithelial progenitor cells and their mesenchymal niche. This inductive mesenchyme, called dermal papilla (DP), undergoes progressive cell loss and eventual miniaturization that contributes to HF pathogenesis. Using laser ablation and fate mapping, we show that HF dermal stem cells (hfDSCs) reconstitute the damaged DP and maintain hair growth, suggesting that hfDSC dysfunction may trigger degeneration of the inductive niche. Fate mapping over 24 months revealed progressive hfDSC depletion, and in vivo clonal analysis of aged hfDSCs showed impaired self-renewal and biased differentiation. Single-cell RNA-seq confirmed hfDSCs as a central precursor, giving rise to divergent mesenchymal trajectories. In aged skin, hfDSCs exhibited senescent-like characteristics, and senescence-associated secretory phenotypes were identified in the aging HF mesenchyme. These results clarify fibroblast dynamics within the HF and suggest that progressive dysfunction within the mesenchymal progenitor pool contributes to age-related hair loss.
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Affiliation(s)
- Wisoo Shin
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Nicole L Rosin
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Holly Sparks
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sarthak Sinha
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Waleed Rahmani
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Nilesh Sharma
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Matt Workentine
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sepideh Abbasi
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Elodie Labit
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Jo Anne Stratton
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Jeff Biernaskie
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada.
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50
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Kowald A, Passos JF, Kirkwood TBL. On the evolution of cellular senescence. Aging Cell 2020; 19:e13270. [PMID: 33166065 PMCID: PMC7744960 DOI: 10.1111/acel.13270] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/11/2020] [Accepted: 10/09/2020] [Indexed: 01/10/2023] Open
Abstract
The idea that senescent cells are causally involved in aging has gained strong support from findings that the removal of such cells alleviates many age‐related diseases and extends the life span of mice. While efforts proceed to make therapeutic use of such discoveries, it is important to ask what evolutionary forces might have been behind the emergence of cellular senescence, in order better to understand the biology that we might seek to alter. Cellular senescence is often regarded as an anti‐cancer mechanism, since it limits the division potential of cells. However, many studies have shown that senescent cells often also have carcinogenic properties. This is difficult to reconcile with the simple idea of an anti‐cancer mechanism. Furthermore, other studies have shown that cellular senescence is involved in wound healing and tissue repair. Here, we bring these findings and ideas together and discuss the possibility that these functions might be the main reason for the evolution of cellular senescence. Furthermore, we discuss the idea that senescent cells might accumulate with age because the immune system had to strike a balance between false negatives (overlooking some senescent cells) and false positives (destroying healthy body cells).
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Affiliation(s)
- Axel Kowald
- Campus for Ageing and Vitality Newcastle University Institute for Ageing Newcastle upon Tyne UK
- Rostock University Medical Center Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA) Rostock Germany
| | - João F. Passos
- Department of Physiology and Biomedical Engineering, Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester Minnesota USA
| | - Thomas B. L. Kirkwood
- Campus for Ageing and Vitality Newcastle University Institute for Ageing Newcastle upon Tyne UK
- Center for Healthy Aging Department of Cellular and Molecular Medicine University of Copenhagen Copenhagen Denmark
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