1
|
Han KS, Sander IB, Kumer J, Resnick E, Booth C, Cheng G, Im Y, Starich B, Kiemen AL, Phillip JM, Reddy S, Joshu CE, Sunshine JC, Walston JD, Wirtz D, Wu PH. qMAP enabled microanatomical mapping of human skin aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.03.588011. [PMID: 39005293 PMCID: PMC11244916 DOI: 10.1101/2024.04.03.588011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Aging is a major driver of diseases in humans. Identifying features associated with aging is essential for designing robust intervention strategies and discovering novel biomarkers of aging. Extensive studies at both the molecular and organ/whole-body physiological scales have helped determined features associated with aging. However, the lack of meso-scale studies, particularly at the tissue level, limits the ability to translate findings made at molecular scale to impaired tissue functions associated with aging. In this work, we established a tissue image analysis workflow - quantitative micro-anatomical phenotyping (qMAP) - that leverages deep learning and machine vision to fully label tissue and cellular compartments in tissue sections. The fully mapped tissue images address the challenges of finding an interpretable feature set to quantitatively profile age-related microanatomic changes. We optimized qMAP for skin tissues and applied it to a cohort of 99 donors aged 14 to 92. We extracted 914 microanatomic features and found that a broad spectrum of these features, represented by 10 cores processes, are strongly associated with aging. Our analysis shows that microanatomical features of the skin can predict aging with a mean absolute error (MAE) of 7.7 years, comparable to state-of-the-art epigenetic clocks. Our study demonstrates that tissue-level architectural changes are strongly associated with aging and represent a novel category of aging biomarkers that complement molecular markers. Our results highlight the complex and underexplored multi-scale relationship between molecular and tissue microanatomic scales.
Collapse
Affiliation(s)
- Kyu Sang Han
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Inbal B Sander
- Department of Dermatology, Johns Hopkins University, Baltimore, MD
| | - Jacqueline Kumer
- Department of Illustration Practice, Maryland Institute College of Art, Baltimore, MD
| | - Eric Resnick
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Clare Booth
- Center for Cancer Research, National Cancer Institute, Frederick, MD
| | - Guoqing Cheng
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Yebin Im
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Bartholomew Starich
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Ashley L Kiemen
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Jude M Phillip
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Sashank Reddy
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
- Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine, Baltimore, MD
| | - Corrine E Joshu
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD
| | - Joel C Sunshine
- Department of Dermatology, Johns Hopkins University, Baltimore, MD
| | - Jeremy D Walston
- Department of Medicine, Division of Geriatrics and Gerontology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Denis Wirtz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Pei-Hsun Wu
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| |
Collapse
|
2
|
Hamie H, Yassine R, Shoukfeh R, Turk D, Huq F, Moossavi M. A review of the efficacy of popular eye cream ingredients. Int J Womens Dermatol 2024; 10:e156. [PMID: 38873621 PMCID: PMC11175953 DOI: 10.1097/jw9.0000000000000156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 05/01/2024] [Indexed: 06/15/2024] Open
Abstract
Background Due to the periorbital region's high susceptibility to damage from external factors, along with its tendency to demonstrate early signs of aging, periorbital skin is a common target for antiaging therapy. Objective This review aims to evaluate the efficacy of active ingredients commonly found in eye creams, particularly focusing on their impact on periorbital skin concerns. Methods A comprehensive review of the literature on active ingredients in eye creams, including retinoids, vitamins C and E, peptides, ceramides, hyaluronic acid, caffeine, and niacinamide, was conducted. Clinical studies assessing the efficacy of these ingredients in addressing periorbital concerns were examined. Results Studies demonstrate the potential of these ingredients to improve various aspects of periorbital skin, including hydration, elasticity, collagen synthesis, and reduction of inflammatory mediators. Ingredients such as retinoids, vitamin C, and caffeine show promise in addressing wrinkles and hyperpigmentation, while peptides and hyaluronic acid aid in collagen production and hydration. Niacinamide and ceramides offer benefits in reducing wrinkles and enhancing the skin barrier function. Limitations The lack of clinical trials specifically targeting eye cream formulations and periorbital skin is a notable limitation. Furthermore, the variability in study designs, sample sizes, and concentrations of active ingredients across studies complicates direct comparisons. Conclusion The reviewed studies highlight the potential of active ingredients in eye creams to address various periorbital concerns. Further research, particularly large-scale clinical trials focusing on eye cream formulations and their efficacy on periorbital skin, is warranted to establish their significance and comparability with other dermatologic products.
Collapse
Affiliation(s)
- Hanin Hamie
- College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan
| | - Reem Yassine
- College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan
| | - Rajaa Shoukfeh
- School of Medicine, Wayne State University, Detroit, Michigan
| | - Dilara Turk
- Department of Dermatology, Wayne State University, Detroit, Michigan
| | - Farhan Huq
- Department of Dermatology, Wayne State University, Detroit, Michigan
| | - Meena Moossavi
- Department of Dermatology, Wayne State University, Detroit, Michigan
| |
Collapse
|
3
|
Kremer M, Burkemper N. Aging Skin and Wound Healing. Clin Geriatr Med 2024; 40:1-10. [PMID: 38000854 DOI: 10.1016/j.cger.2023.06.001] [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] [Indexed: 11/26/2023]
Abstract
Responsible for many essential functions of life, human skin is made up of many components, each of which undergoes significant functional changes with aging and photodamage. Wound healing was previously thought to be defective in the elderly given the higher presence of chronic wounds and the longer time required for re-epithelialization of acute wounds. However, these notions have been challenged in recent research, which has shown that wound healing in the elderly is delayed but not defective. Poor healing of chronic wounds in older populations is more often attributable to comorbid conditions rather than age alone.
Collapse
Affiliation(s)
- Michael Kremer
- Department of Dermatology, SSM Saint Louis University Hospital, 1225 South Grand Boulevard 3L, St. Louis, MO 63104, USA
| | - Nicole Burkemper
- Department of Dermatology, SSM Saint Louis University Hospital, 1225 South Grand Boulevard 3L, St. Louis, MO 63104, USA.
| |
Collapse
|
4
|
Zhao H, Fan S, Sun J. Delayed Wound Healing in the Elderly and a New Therapeutic Target: CD271. Curr Stem Cell Res Ther 2024; 19:316-323. [PMID: 37016526 DOI: 10.2174/1574888x18666230403083603] [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: 08/03/2022] [Revised: 11/21/2022] [Accepted: 12/29/2022] [Indexed: 04/06/2023]
Abstract
With the development of society, the global population is showing a trend of aging. It is well known that age is one of the factors affecting wound healing. Aging compromises the normal physiological process of wound healing, such as the change of skin structure, the decrease of growth factors, the deceleration of cell proliferation, and the weakening of migration ability, hence delaying wound healing. At present, research in adult stem cell-related technology and its derived regenerative medicine provides a novel idea for the treatment of senile wounds. Studies have confirmed that CD271 (P75 neurotropism receptor/P75NTR)-positive cells (CD271+ cells) are a kind of stem cells with a stronger ability of proliferation, differentiation, migration and secretion than CD271 negative (CD271- cells). Meanwhile, the total amount and distribution of CD271 positive cells in different ages of skin are also different, which may be related to the delayed wound healing of aging skin. Therefore, this article reviews the relationship between CD271+ cells and senile wounds and discusses a new scheme for the treatment of senile wounds.
Collapse
Affiliation(s)
- Hongqing Zhao
- Department of Plastic Surgery, Jinzhou Medical University, Jinzhou, 121001, Liaoning Province, China
- Department of Burns and Plastic Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, 100048, China
| | - Sirui Fan
- Department of Plastic Surgery, Jinzhou Medical University, Jinzhou, 121001, Liaoning Province, China
| | - Jiachen Sun
- Department of Burns and Plastic Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, 100048, China
| |
Collapse
|
5
|
Cerfoglio S, Lopomo NF, Capodaglio P, Scalona E, Monfrini R, Verme F, Galli M, Cimolin V. Assessment of an IMU-Based Experimental Set-Up for Upper Limb Motion in Obese Subjects. SENSORS (BASEL, SWITZERLAND) 2023; 23:9264. [PMID: 38005650 PMCID: PMC10674635 DOI: 10.3390/s23229264] [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: 09/19/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
In recent years, wearable systems based on inertial sensors opened new perspectives for functional motor assessment with respect to the gold standard motion capture systems. The aim of this study was to validate an experimental set-up based on 17 body-worn inertial sensors (Awinda, Xsens, The Netherlands), addressing specific body segments with respect to the state-of-the art system (VICON, Oxford Metrics Ltd., Oxford, UK) to assess upper limb kinematics in obese, with respect to healthy subjects. Twenty-three obese and thirty healthy weight individuals were simultaneously acquainted with the two systems across a set of three tasks for upper limbs (i.e., frontal arm rise, lateral arm rise, and reaching). Root Mean Square error (RMSE) was computed to quantify the differences between the measurements provided by the systems in terms of range of motion (ROM), whilst their agreement was assessed via Pearson's correlation coefficient (PCC) and Bland-Altman (BA) plots. In addition, the signal waveforms were compared via one-dimensional statistical parametrical mapping (SPM) based on a paired t-test and a two-way ANOVA was applied on ROMs. The overall results partially confirmed the correlation and the agreement between the two systems, reporting only a moderate correlation for shoulder principal rotation angle in each task (r~0.40) and for elbow/flexion extension in obese subjects (r = 0.66), whilst no correlation was found for most non-principal rotation angles (r < 0.40). Across the performed tasks, an average RMSE of 34° and 26° was reported in obese and healthy controls, respectively. At the current state, the presence of bias limits the applicability of the inertial-based system in clinics; further research is intended in this context.
Collapse
Affiliation(s)
- Serena Cerfoglio
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy; (S.C.); (M.G.); (V.C.)
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy;
| | - Nicola Francesco Lopomo
- Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Brescia, 25123 Brescia, Italy; (N.F.L.); (R.M.)
| | - Paolo Capodaglio
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy;
- Department of Surgical Sciences, Physical Medicine and Rehabilitation, University of Turin, 10126 Turin, Italy
| | - Emilia Scalona
- Dipartimento di Specialità Medico-Chirurgiche, Scienze Radiologiche e Sanità Pubblica, Università degli Studi di Brescia, 25123 Brescia, Italy;
| | - Riccardo Monfrini
- Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Brescia, 25123 Brescia, Italy; (N.F.L.); (R.M.)
| | - Federica Verme
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy;
| | - Manuela Galli
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy; (S.C.); (M.G.); (V.C.)
| | - Veronica Cimolin
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy; (S.C.); (M.G.); (V.C.)
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy;
| |
Collapse
|
6
|
Ji N, Wu CG, Wang XD, Song ZX, Wu PY, Liu X, Feng X, Zhang XM, Wang XF, Lv ZJ. Anti-aging Effects of Alu Antisense RNA on Human Fibroblast Senescence Through the MEK-ERK Pathway Mediated by KIF15. Curr Med Sci 2023; 43:35-47. [PMID: 36808398 PMCID: PMC9939868 DOI: 10.1007/s11596-022-2688-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 10/18/2022] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To investigate whether human short interspersed nuclear element antisense RNA (Alu antisense RNA; Alu asRNA) could delay human fibroblast senescence and explore the underlying mechanisms. METHODS We transfected Alu asRNA into senescent human fibroblasts and used cell counting kit-8 (CCK-8), reactive oxygen species (ROS), and senescence-associated beta-galactosidase (SA-β-gal) staining methods to analyze the anti-aging effects of Alu asRNA on the fibroblasts. We also used an RNA-sequencing (RNA-seq) method to investigate the Alu asRNA-specific mechanisms of anti-aging. We examined the effects of KIF15 on the anti-aging role induced by Alu asRNA. We also investigated the mechanisms underlying a KIF15-induced proliferation of senescent human fibroblasts. RESULTS The CCK-8, ROS and SA-β-gal results showed that Alu asRNA could delay fibroblast aging. RNA-seq showed 183 differentially expressed genes (DEGs) in Alu asRNA transfected fibroblasts compared with fibroblasts transfected with the calcium phosphate transfection (CPT) reagent. The KEGG analysis showed that the cell cycle pathway was significantly enriched in the DEGs in fibroblasts transfected with Alu asRNA compared with fibroblasts transfected with the CPT reagent. Notably, Alu asRNA promoted the KIF15 expression and activated the MEK-ERK signaling pathway. CONCLUSION Our results suggest that Alu asRNA could promote senescent fibroblast proliferation via activation of the KIF15-mediated MEK-ERK signaling pathway.
Collapse
Affiliation(s)
- Ning Ji
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Chong-guang Wu
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Xiao-die Wang
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Zhi-xue Song
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Pei-yuan Wu
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Xin Liu
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Xu Feng
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Xiang-mei Zhang
- Research Center, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011 China
| | - Xiu-fang Wang
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| | - Zhan-jun Lv
- Department of Genetics, Hebei Medical University, Hebei Key Lab of Laboratory Animal, Shijiazhuang, 050017 China
| |
Collapse
|
7
|
Della Valle F, Reddy P, Yamamoto M, Liu P, Saera-Vila A, Bensaddek D, Zhang H, Prieto Martinez J, Abassi L, Celii M, Ocampo A, Nuñez Delicado E, Mangiavacchi A, Aiese Cigliano R, Rodriguez Esteban C, Horvath S, Izpisua Belmonte JC, Orlando V. LINE-1 RNA causes heterochromatin erosion and is a target for amelioration of senescent phenotypes in progeroid syndromes. Sci Transl Med 2022; 14:eabl6057. [PMID: 35947677 DOI: 10.1126/scitranslmed.abl6057] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Constitutive heterochromatin is responsible for genome repression of DNA enriched in repetitive sequences, telomeres, and centromeres. During physiological and pathological premature aging, heterochromatin homeostasis is profoundly compromised. Here, we showed that LINE-1 (Long Interspersed Nuclear Element-1; L1) RNA accumulation was an early event in both typical and atypical human progeroid syndromes. L1 RNA negatively regulated the enzymatic activity of the histone-lysine N-methyltransferase SUV39H1 (suppression of variegation 3-9 homolog 1), resulting in heterochromatin loss and onset of senescent phenotypes in vitro. Depletion of L1 RNA in dermal fibroblast cells from patients with different progeroid syndromes using specific antisense oligonucleotides (ASOs) restored heterochromatin histone 3 lysine 9 and histone 3 lysine 27 trimethylation marks, reversed DNA methylation age, and counteracted the expression of senescence-associated secretory phenotype genes such as p16, p21, activating transcription factor 3 (ATF3), matrix metallopeptidase 13 (MMP13), interleukin 1a (IL1a), BTG anti-proliferation factor 2 (BTG2), and growth arrest and DNA damage inducible beta (GADD45b). Moreover, systemic delivery of ASOs rescued the histophysiology of tissues and increased the life span of a Hutchinson-Gilford progeria syndrome mouse model. Transcriptional profiling of human and mouse samples after L1 RNA depletion demonstrated that pathways associated with nuclear chromatin organization, cell proliferation, and transcription regulation were enriched. Similarly, pathways associated with aging, inflammatory response, innate immune response, and DNA damage were down-regulated. Our results highlight the role of L1 RNA in heterochromatin homeostasis in progeroid syndromes and identify a possible therapeutic approach to treat premature aging and related syndromes.
Collapse
Affiliation(s)
- Francesco Della Valle
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| | - Pradeep Reddy
- Salk Institute for Biological Studies, La Jolla, CA, USA.,Altos Labs, San Diego, CA, USA
| | - Mako Yamamoto
- Salk Institute for Biological Studies, La Jolla, CA, USA.,Altos Labs, San Diego, CA, USA
| | - Peng Liu
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| | | | - Dalila Bensaddek
- King Abdullah University of Science and Technology (KAUST), Bioscience Core Lab
| | - Huoming Zhang
- King Abdullah University of Science and Technology (KAUST), Bioscience Core Lab
| | | | - Leila Abassi
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| | - Mirko Celii
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| | | | | | - Arianna Mangiavacchi
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| | | | | | | | | | - Valerio Orlando
- King Abdullah University of Science and Technology (KAUST), Biological Environmental Sciences and Engineering Division BESE, KAUST Environmental Epigenetics Program, Thuwal, Saudi Arabia
| |
Collapse
|
8
|
Vasculature atrophy causes a stiffened microenvironment that augments epidermal stem cell differentiation in aged skin. NATURE AGING 2022; 2:592-600. [PMID: 37117774 DOI: 10.1038/s43587-022-00244-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/03/2022] [Indexed: 11/08/2022]
Abstract
Stem cell loss causes tissue deterioration associated with aging. The accumulation of genomic and oxidative stress-induced DNA damage is an intrinsic cue for stem cell loss1,2; however, whether there is an external microenvironmental cue that triggers stem cell loss remains unclear. Here we report that the involution of skin vasculature causes dermal stiffening that augments the differentiation and hemidesmosome fragility of interfollicular epidermal stem cells (IFESCs) in aged mouse skin. Aging-related IFESC dysregulation occurs in plantar and tail skin, and is correlated with prolonged calcium influx, which is contributed by the mechanoresponsive ion channel Piezo1 (ref. 3). Epidermal deletion of Piezo1 ameliorated IFESC dysregulation in aged skin, whereas Piezo1 activation augmented IFESC differentiation and hemidesmosome fragility in young mice. The dermis stiffened with age, which was accompanied by dermal vasculature atrophy. Conversely, induction of the dermal vasculature softened the dermis and ameliorated IFESC dysregulation in aged skin. Single-cell RNA sequencing of dermal fibroblasts identified an aging-associated anti-angiogenetic secretory molecule, pentraxin 3 (ref. 4), which caused dermal sclerotization and IFESC dysregulation in aged skin. Our findings show that the vasculature softens the microenvironment for stem cell maintenance and provide a potential mechanobiology-based therapeutic strategy against skin disorders in aging.
Collapse
|
9
|
Ribeiro R, Macedo JC, Costa M, Ustiyan V, Shindyapina AV, Tyshkovskiy A, Gomes RN, Castro JP, Kalin TV, Vasques-Nóvoa F, Nascimento DS, Dmitriev SE, Gladyshev VN, Kalinichenko VV, Logarinho E. In vivo cyclic induction of the FOXM1 transcription factor delays natural and progeroid aging phenotypes and extends healthspan. NATURE AGING 2022; 2:397-411. [PMID: 37118067 DOI: 10.1038/s43587-022-00209-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/15/2022] [Indexed: 04/30/2023]
Abstract
The FOXM1 transcription factor exhibits pleiotropic C-terminal transcriptional and N-terminal non-transcriptional functions in various biological processes critical for cellular homeostasis. We previously found that FOXM1 repression during cellular aging underlies the senescence phenotypes, which were vastly restored by overexpressing transcriptionally active FOXM1. Yet, it remains unknown whether increased expression of FOXM1 can delay organismal aging. Here, we show that in vivo cyclic induction of an N-terminal truncated FOXM1 transgene on progeroid and naturally aged mice offsets aging-associated repression of full-length endogenous Foxm1, reinstating both transcriptional and non-transcriptional functions. This translated into mitigation of several cellular aging hallmarks, as well as molecular and histopathological progeroid features of the short-lived Hutchison-Gilford progeria mouse model, significantly extending its lifespan. FOXM1 transgene induction also reinstated endogenous Foxm1 levels in naturally aged mice, delaying aging phenotypes while extending their lifespan. Thus, we disclose that FOXM1 genetic rewiring can delay senescence-associated progeroid and natural aging pathologies.
Collapse
Affiliation(s)
- Rui Ribeiro
- Aging and Aneuploidy Laboratory, i3S - Instituto de Investigação e Inovação em Saúde, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Graduate Program in Areas of Basic and Applied Biology (GABBA), ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Joana C Macedo
- Aging and Aneuploidy Laboratory, i3S - Instituto de Investigação e Inovação em Saúde, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Madalena Costa
- Anatomy Department, Unit for Multidisciplinary Biomedical Research, ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Vladimir Ustiyan
- Center for Lung Regenerative Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Anastasia V Shindyapina
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Alexander Tyshkovskiy
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Rita N Gomes
- INEB - Instituto Nacional de Engenharia Biomédica, i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - José Pedro Castro
- Aging and Aneuploidy Laboratory, i3S - Instituto de Investigação e Inovação em Saúde, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Tanya V Kalin
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Francisco Vasques-Nóvoa
- INEB - Instituto Nacional de Engenharia Biomédica, i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Cardiovascular Research and Development Center, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Diana S Nascimento
- INEB - Instituto Nacional de Engenharia Biomédica, i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Sergey E Dmitriev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Vladimir V Kalinichenko
- Center for Lung Regenerative Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Elsa Logarinho
- Aging and Aneuploidy Laboratory, i3S - Instituto de Investigação e Inovação em Saúde, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.
| |
Collapse
|
10
|
Kim DS, Lee H, Kim MJ, Seong KY, Jeong JS, Kim SY, Jung EM, Yang SY, An BS. Dissolving biopolymer microneedle patches for the improvement of skin elasticity. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
11
|
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: 65] [Impact Index Per Article: 21.7] [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.
Collapse
Affiliation(s)
| | | | - Miri Kim
- Correspondence: ; Tel.: +82-3779-1056
| |
Collapse
|
12
|
Zhuang L, Visalakshan RM, Kaur P. Dermal Pericytes Exhibit Declined Ability to Promote Human Skin Regeneration with Ageing in 3D Organotypic Culture Models. Cells 2021; 10:3051. [PMID: 34831274 PMCID: PMC8616368 DOI: 10.3390/cells10113051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 11/16/2022] Open
Abstract
The well documented decline in the regenerative ability of ageing human skin has been attributed to many factors including genomic instability, telomere shortening, poor nutrient sensing, cellular senescence, and stem cell exhaustion. However, a role for the dermal cellular and molecular microenvironment in skin ageing is just emerging. We previously showed that dermal pericytes co-operate with fibroblasts to improve human skin regeneration in an organotypic skin culture model, and even do so in the absence of fibroblasts. Here, we report that the number of dermal cells, particularly pericytes, declines significantly in human skin of donors aged > 50 years. Notably, aged pericytes promoted epidermal regeneration of neonatal keratinocytes in organotypic cultures and the resulting epithelium exhibited a Ki67+/ΔNp63+ basal layer and terminal differentiation. However, the epithelium lacked several features of homeostasis displaying lower levels of ΔNp63 expression, decreased LAMA5 deposition at the dermo-epidermal junction, and the absence of basement membrane and hemi-desmosome assembly. We conclude that a decline in pericyte incidence and function contribute to an impaired epidermal microenvironment and poor skin regeneration with ageing in the human skin.
Collapse
Affiliation(s)
- Lizhe Zhuang
- Epithelial Stem Cell Biology Laboratory, Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC 3002, Australia;
- Medical Research Council Cancer Unit, Hutchison/MRC Centre, University of Cambridge, Cambridge CB2 0XZ, UK
| | - Rahul M. Visalakshan
- Epithelial Stem Cell Biology Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia;
| | - Pritinder Kaur
- Epithelial Stem Cell Biology Laboratory, Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC 3002, Australia;
- Epithelial Stem Cell Biology Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia;
| |
Collapse
|
13
|
Cytrellis: A Novel Microcoring Technology for Scarless Skin Removal: Summary of Three Prospective Clinical Trials. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2021; 9:e3905. [PMID: 34729291 PMCID: PMC8556055 DOI: 10.1097/gox.0000000000003905] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/08/2021] [Indexed: 11/27/2022]
Abstract
Background We introduce an innovative and novel technology that achieves scarless skin removal without the use of thermal energy. Microcoring technology (MCT) uses a modified, hollow hypodermic needle to remove skin safely and without a scar. This method is advantageous compared to other fractional devices, given that it has the same benefits as energy-based devices (removal of skin cores without a scar), with the added value of immediate closure along the relaxed skin tension lines, with significantly less thermal energy. Methods Three prospective clinical safety trials analyzing MCT treatment on abdominal and facial skin (short- and long-term) are described. Results MCT treatment of human skin resulted in scarless skin removal that was well tolerated by patients. Healing occurred rapidly, with limited side effects. Skin area reduction (skin tightening) and increase in skin thickness were observed long term. Conclusions MCT treatment of human skin is safe and well tolerated. Although further studies on efficacy are required to evaluate the full potential of MCT in skin rejuvenation, early findings such as skin tightening and increase in skin thickness are encouraging.
Collapse
|
14
|
Comparison of Therapeutic Effects of Topical Calcineurin Inhibitor and Moisturizing Cream on Pruritic External Auditory Canal. J Clin Med 2021; 10:jcm10194313. [PMID: 34640333 PMCID: PMC8509200 DOI: 10.3390/jcm10194313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/02/2022] Open
Abstract
Although pruritic external auditory canal (PEAC) is a relatively common symptom, particularly in the geriatric population, its pathophysiology and appropriate treatment remain to be elucidated. We compared the therapeutic efficacy of pimecrolimus, a topical calcineurin inhibitor (CI), and a moisturizing cream (MC) in patients with PEAC. Thirty-nine patients (73 ears) were prospectively enrolled and treated topically twice daily with the CI (n = 20, 39 ears) or the MC (n = 19, 34 ears) for two weeks. The change in itching sensation was evaluated subjectively using a self-questionnaire at immediately, one month, and two months after self-application, and objectively by changes in erythema grading. Although topical treatment with the CI resulted in a more rapid improvement than treatment with the MC in patients with PEAC, the final outcomes did not differ between the groups. Furthermore, similar improvements in erythema scores were noted. The results of this study suggest that the MC, which rejuvenates the normal physiological status of the ear canal skin, may greatly benefit those elderly patients more susceptible to PEAC, without any concerns about adverse events and underlying comorbidities. Expanding upon the understanding of the role of moisturizers in the treatment of pruritic ears merits attention, as this knowledge provides a good example of the clinical guidelines for the management of PEAC.
Collapse
|
15
|
Crowley JS, Liu A, Dobke M. Regenerative and stem cell-based techniques for facial rejuvenation. Exp Biol Med (Maywood) 2021; 246:1829-1837. [PMID: 34102897 PMCID: PMC8381699 DOI: 10.1177/15353702211020701] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This review discusses the most novel ideas and modalities being incorporated into facial rejuvenation. Recent innovative techniques include the use of regenerative stem cell techniques and regeneration supportive modalities such as nano-technology or gene therapies. This review aims to investigate approaches that are less well known and lacking established evidence in order to proactively study these techniques prior to them becoming popularized. These applications and relevant research were reviewed in the context of both surgical and non-surgical modalities in clinical practice. Future directions include the concept of "precision cosmetic medicine" utilizing gene editing and cellular therapies to tailor rejuvenation techniques based on each individual's genetic make-up and therefore needs.
Collapse
Affiliation(s)
- J Sarah Crowley
- Department of Surgery, Division of Plastic Surgery,
UC San Diego School of Medicine, San Diego, CA 92103-8890
| | - Amy Liu
- Department of Surgery, Division of Plastic Surgery,
UC San Diego School of Medicine, San Diego, CA 92103-8890
| | - Marek Dobke
- Department of Surgery, Division of Plastic Surgery,
UC San Diego School of Medicine, San Diego, CA 92103-8890
| |
Collapse
|
16
|
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]
|
17
|
Hutson KH, D'Souza AR. The Difficult Neck Patient-Practical Management: A Personal Approach. Facial Plast Surg 2021; 37:168-175. [PMID: 33676374 DOI: 10.1055/s-0041-1725109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
With increasing global trends in aesthetic surgery, the facial plastic surgeon will undoubtedly encounter a variety of patient types including those with more unfavorable underlying anatomy. The "difficult" neck represents a cohort of individuals that exhibit both anatomical and patient-related factors that may limit overall surgical improvement. Anatomical issues that contribute to the difficult neck include excessive fat ("heavy" neck), ptosis of deep structures, obtuse cervicomental angle, and abnormalities of the underlying skeletal framework, such as a low set hyoid and inadequate chin projection. It is important that these factors are recognized and highlighted preoperatively, and that surgery is tailored appropriately to the individual. Although satisfactory results can be achieved, these may be ultimately limited, and it is important that patients understand this. We will present a review of current thinking alongside our own practice in the identification and management of these "difficult neck" patients.
Collapse
Affiliation(s)
| | - Alwyn Ray D'Souza
- Department of Otolaryngology, Lewisham and Greenwich NHS Trust, London, United Kingdom
| |
Collapse
|
18
|
Shi GH, Connor RJ, Collins DS, Kang DW. Subcutaneous Injection Performance in Yucatan Miniature Pigs with and without Human Hyaluronidase and Auto-injector Tolerability in Humans. AAPS PharmSciTech 2021; 22:39. [PMID: 33409604 PMCID: PMC7788039 DOI: 10.1208/s12249-020-01880-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/13/2020] [Indexed: 12/11/2022] Open
Abstract
Recombinant human hyaluronidase PH20 (rHuPH20) facilitates subcutaneous (SC) delivery of co-administered therapeutic agents by locally and transiently degrading hyaluronan in the SC space, and can be administered with therapeutics using a variety of devices. Two SC delivery studies were carried out to assess auto-injector (AI) performance, each in 18 Yucatan miniature pigs. Abdominal injections were administered using three auto-injectors of 1 mL (AI1) and 2 mL (AI2 and sAI2) with different injection speeds and depths (5.5–7.5 mm) and two pre-filled syringe (PFS) devices of 1 and 2 mL. The injection included a placebo buffer with and without rHuPH20 to evaluate the effect of rHuPH20 on SC injection performance. The feasibility of using similar devices to deliver a placebo buffer in humans was investigated. rHuPH20 was not studied in humans. In miniature pigs, postinjection swelling was evident for most PFS/AI injections, particularly 2 mL. Swelling heights and back leakage were typically lower with rHuPH20 co-administration versus placebo for most device configurations (1 or 2 mL PFS or AI). Auto-injections with versus without rHuPH20 also resulted in reduced swelling firmness and faster swelling resolution over time. Slow injections with rHuPH20 had shorter and more consistent injection time versus placebo. In humans, minimal injection site swelling and negligible back leakage were observed for 2-mL injections of placebo, while more erythema was observed in humans versus miniature pigs. Even at high delivery rates with PFS or AI, the addition of rHuPH20 resulted in improved SC injection performance versus placebo in miniature pigs.
Collapse
|
19
|
Shamloul G, Khachemoune A. An updated review of the sebaceous gland and its role in health and diseases Part 1: Embryology, evolution, structure, and function of sebaceous glands. Dermatol Ther 2021; 34:e14695. [PMID: 33354858 DOI: 10.1111/dth.14695] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022]
Abstract
Sebaceous glands are sebum-secreting components of pilosebaceous units. The embryological development of the sebaceous gland follows that of the hair follicle and epidermal tissue, beginning between weeks 13 and 16 of fetal development. New sebaceous glands do not normally develop following birth, but their size increases with age. Sebocytes express a multitude of hormone receptors and are heavily regulated to secrete sebum by androgens. There is a large increase of sebum excretion at birth and again at puberty, until approximately age 17. In adulthood, sebum production remains stable and declines to zero in postmenopausal women and in men aged 60-70. Besides the production and release of sebum, sebaceous glands function to lubricate the skin and hair, provide thermoregulation, and exhibit antimicrobial activity. Research has shown sebaceous glands to possess the cellular capability to transcribe genes necessary for androgen metabolism. Dysfunction of the sebaceous gland can be seen primarily in steatocystoma simplex and multiplex, sebaceous gland hyperplasia, sebaceoma, sebaceous adenoma, sebaceous carcinoma, nevus sebaceus, and folliculosebaceous cystic hamartoma. Sebaceous glands are secondarily involved in acne vulgaris, seborrheic dermatitis, and androgenic alopecia.
Collapse
Affiliation(s)
- Gelan Shamloul
- Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania, USA
| | - Amor Khachemoune
- Veterans Affairs Hospital and SUNY Downstate Dermatology Service, Brooklyn, New York, USA
| |
Collapse
|
20
|
Roig-Rosello E, Rousselle P. The Human Epidermal Basement Membrane: A Shaped and Cell Instructive Platform That Aging Slowly Alters. Biomolecules 2020; 10:E1607. [PMID: 33260936 PMCID: PMC7760980 DOI: 10.3390/biom10121607] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022] Open
Abstract
One of the most important functions of skin is to act as a protective barrier. To fulfill this role, the structural integrity of the skin depends on the dermal-epidermal junction-a complex network of extracellular matrix macromolecules that connect the outer epidermal layer to the underlying dermis. This junction provides both a structural support to keratinocytes and a specific niche that mediates signals influencing their behavior. It displays a distinctive microarchitecture characterized by an undulating pattern, strengthening dermal-epidermal connectivity and crosstalk. The optimal stiffness arising from the overall molecular organization, together with characteristic anchoring complexes, keeps the dermis and epidermis layers extremely well connected and capable of proper epidermal renewal and regeneration. Due to intrinsic and extrinsic factors, a large number of structural and biological changes accompany skin aging. These changes progressively weaken the dermal-epidermal junction substructure and affect its functions, contributing to the gradual decline in overall skin physiology. Most changes involve reduced turnover or altered enzymatic or non-enzymatic post-translational modifications, compromising the mechanical properties of matrix components and cells. This review combines recent and older data on organization of the dermal-epidermal junction, its mechanical properties and role in mechanotransduction, its involvement in regeneration, and its fate during the aging process.
Collapse
Affiliation(s)
- Eva Roig-Rosello
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305, CNRS-Université Lyon 1, SFR BioSciences Gerland-Lyon Sud, 7 Passage du Vercors, 69367 Lyon, France;
- Roger Gallet SAS, 4 rue Euler, 75008 Paris, France
| | - Patricia Rousselle
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305, CNRS-Université Lyon 1, SFR BioSciences Gerland-Lyon Sud, 7 Passage du Vercors, 69367 Lyon, France;
| |
Collapse
|
21
|
Khanna S, Phelps PO. The basics of baggy eyelids. Dis Mon 2020; 66:101037. [PMID: 32622676 DOI: 10.1016/j.disamonth.2020.101037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Saira Khanna
- Department of Ophthalmology and Visual Science, University of Chicago, Chicago, IL, United States
| | - Paul O Phelps
- Department of Ophthalmology and Visual Science, University of Chicago, Chicago, IL, United States; Department of Surgery, Northshore University HealthSystem, 2050 Pfingsten Rd., Ste. 280, Glenview, Evanston 60026, IL, United States.
| |
Collapse
|
22
|
Williams R, Pawlus AD, Thornton MJ. Getting under the skin of hair aging: the impact of the hair follicle environment. Exp Dermatol 2020; 29:588-597. [DOI: 10.1111/exd.14109] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/24/2020] [Accepted: 04/25/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Rachael Williams
- The Centre for Skin Sciences Faculty of Life Sciences The University of Bradford Bradford UK
| | - Alison D Pawlus
- Aveda, Hair Innovation and Technology Blaine Minneapolis USA
| | - M Julie Thornton
- The Centre for Skin Sciences Faculty of Life Sciences The University of Bradford Bradford UK
| |
Collapse
|
23
|
Heidari Beigvand H, Razzaghi M, Rostami-Nejad M, Rezaei-Tavirani M, Safari S, Rezaei-Tavirani M, Mansouri V, Heidari MH. Assessment of Laser Effects on Skin Rejuvenation. J Lasers Med Sci 2020; 11:212-219. [PMID: 32273965 DOI: 10.34172/jlms.2020.35] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Laser skin resurfacing has changed the approach of facial skin rejuvenation over the past decade. This article evaluates the laser effects on skin rejuvenation by the assessment of laser characteristics and histological and molecular changes, accompanied by the expression of proteins during and after laser-assisted rejuvenation of skin. It is important to note that different layers of skin with different cells are normally exposed to the sun's UV radiation which is the most likely factor in aging and damaging healthy skin. To identify the expression of proteins, using validated databases and reviewing existing data could reveal altered proteins which could be analyzed and mapped to investigate their expression and their different effects on cell biological responses. In this regard, proteomics data can be used for better investigation of the changes in the proteomic profile of the treated skin. Different assessments have revealed the survival and activation of fibroblasts and new keratinocytes with an increase of collagen and elastin fibers in the dermis and the reduction of matrix metalloproteinases (MMPs) and heat shock proteins (HSPs) as a result of different low-power laser therapies of skin. There are a wide range of biological effects associated with laser application in skin rejuvenation; therefore, more safety considerations should be regarded in the application of lasers in skin rejuvenation.
Collapse
Affiliation(s)
- Hazhir Heidari Beigvand
- Firoozabadi Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Rezaei-Tavirani
- Firoozabadi Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Safari
- Proteomics Research Center, Department of Emergency Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei-Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Heidari
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
24
|
Bonham CA, Kuehlmann B, Gurtner GC. Impaired Neovascularization in Aging. Adv Wound Care (New Rochelle) 2020; 9:111-126. [PMID: 31993253 DOI: 10.1089/wound.2018.0912] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
Significance: The skin undergoes an inevitable degeneration as an individual ages. As intrinsic and extrinsic factors degrade the structural integrity of the skin, it experiences a critical loss of function and homeostatic stability. Thus, aged skin becomes increasingly susceptible to injury and displays a prolonged healing process. Recent Advances: Several studies have found significant differences during wound healing between younger and older individuals. The hypoxia-inducible factor 1-alpha (HIF-1α) signaling pathway has recently been identified as a major player in wound healing. Hypoxia-inducible factors (HIFs) are pleiotropic key regulators of oxygen homeostasis. HIF-1α is essential to neovascularization through its regulation of cytokines, such as SDF-1α (stromal cell-derived factor 1-alpha) and has been shown to upregulate the expression of genes important for a hypoxic response. Prolyl hydroxylase domain proteins (PHDs) and factor inhibiting HIF effectively block HIF-1α signaling in normoxia through hydroxylation, preventing the signaling cascade from activating, leading to impaired tissue survival. Critical Issues: Aged wounds are a major clinical burden, resisting modern treatment and costing millions in health care each year. At the molecular level, aging has been shown to interfere with PHD regulation, which in turn prevents HIF-1α from activating gene expression, ultimately leading to impaired healing. Other studies have identified loss of function in cells during aging, impeding processes such as angiogenesis. Future Directions: An improved understanding of the regulation of molecular mediators, such as HIF-1α and PHD, will allow for manipulation of the various factors underlying delayed wound healing in the aged. The findings highlighted in this may facilitate the development of potential therapeutic approaches involved in the alteration of cellular dynamics and aging.
Collapse
Affiliation(s)
- Clark A. Bonham
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, California
| | - Britta Kuehlmann
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, California
- Center for Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Regensburg and Caritas Hospital St. Josef, Regensburg, Germany
| | - Geoffrey C. Gurtner
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, California
| |
Collapse
|
25
|
|
26
|
Tracy LM, Singer Y, Schrale R, Gong J, Darton A, Wood F, Kurmis R, Edgar D, Cleland H, Gabbe BJ. Epidemiology of burn injury in older adults: An Australian and New Zealand perspective. Scars Burn Heal 2020; 6:2059513120952336. [PMID: 33062309 PMCID: PMC7534068 DOI: 10.1177/2059513120952336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION The ageing global population presents a novel set of challenges for trauma systems. Less research has focused on the older adult population with burns and how they differ compared to younger patients. This study aimed to describe, and compare with younger peers, the number, causes and surgical management of older adults with burn injuries in Australia and New Zealand. METHODS The Burns Registry of Australia and New Zealand was used to identify patients with burn injuries between 1 July 2009 and 31 December 2018. Temporal trends in incidence rates were evaluated and categorised by age at injury. Patient demographics, injury severity and event characteristics, surgical intervention and in-hospital outcomes were investigated. RESULTS There were 2394 burn-injured older adults admitted during the study period, accounting for 13.4% of adult admissions. Scalds were the most common cause of burn injury in older adults. The incidence of older adult burns increased by 2.96% each year (incidence rate ratio = 1.030, 95% confidence interval = 1.013-1.046, P < 0.001). Compared to their younger peers, a smaller proportion of older adult patients were taken to theatre for a surgical procedure, though a larger proportion of older adults received a skin graft. DISCUSSION Differences in patient and injury characteristics, surgical management and in-hospital outcomes were observed for older adults. These findings provide the Australian and New Zealand burn care community with a greater understanding of burn injury and their treatments in a unique group of patients who are at risk of poorer outcomes than younger people. LAY SUMMARY The number and proportion of older persons in every country of the world is growing. This may create challenges for healthcare systems. While burn injuries are a unique subset of trauma that affect individuals of all ages, less is known about burns in older adults and how they differ from younger patients.We wanted to look at the number, type, management, and outcomes of burns in older adults in Australia and New Zealand. To do this, we used data from the Burns Registry of Australia and New Zealand, or BRANZ. The BRANZ is a database that collects information on patients that present to Australian and New Zealand hospitals that have a specialist burns unit.Our research found that one in eight adult burns patients was over the age of 65, and that the rate of burn injuries in older adults has increased over the last decade. Older adult burns patients were most commonly affected by scalds after coming in contact with wet heat such as boiling liquids or steam. Fewer older adults went to theatre for an operation or surgical procedure compared to their younger counterparts. However, a larger proportion of older adults that went to theatre had a skin graft (where skin is removed from an uninjured part of the body and placed over the injured part).This research provides important information about a unique and growing group of patients to the local burn care community. It also highlights potential avenues for injury prevention initiatives.
Collapse
Affiliation(s)
- Lincoln M Tracy
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Yvonne Singer
- Victorian Adult Burns Service, Alfred Hospital, Melbourne, VIC, Australia
| | - Rebecca Schrale
- Tasmanian Burns Unit, Royal Hobart Hospital, Hobart, TAS, Australia
| | - Jennifer Gong
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Anne Darton
- Statewide Burn Injury Service, NSW Agency for Clinical Innovation, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Fiona Wood
- Burn Injury Research Unit, University of Western Australia, Perth, WA, Australia
- State Adult Burn Unit, Fiona Stanley Hospital, Murdoch, WA, Australia
| | - Rochelle Kurmis
- Adult Burns Service, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Dale Edgar
- Burn Injury Research Unit, University of Western Australia, Perth, WA, Australia
- State Adult Burn Unit, Fiona Stanley Hospital, Murdoch, WA, Australia
- Burn Injury Research Node, The University of Notre Dame, Fremantle, WA, Australia
| | - Heather Cleland
- Victorian Adult Burns Service, Alfred Hospital, Melbourne, VIC, Australia
- Department of Surgery, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Belinda J Gabbe
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
- Health Data Research UK, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales
| |
Collapse
|
27
|
Topical estrogen application to wounds promotes delayed cutaneous wound healing in 80-week-old female mice. PLoS One 2019; 14:e0225880. [PMID: 31774863 PMCID: PMC6881033 DOI: 10.1371/journal.pone.0225880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/14/2019] [Indexed: 01/09/2023] Open
Abstract
Topical estrogen application to wounds is effective in promoting cutaneous wound healing. However, whether it promotes cutaneous wound healing in delayed cutaneous wound healing associated with advanced age remains to be elucidated. This study aimed to evaluate the effect of topical estrogen application to wounds in cutaneous wound healing in 80-week-old female mice. C57BL/6J female mice aged 82–85 and 12 weeks old were submitted to two full-thickness wounds. Mice were divided into four groups: aged group, topical estrogen wound treatment aged group (aged-E), vehicle wound treatment aged group (aged-vehicle), and young group. Wound healing was observed until day 14. In the aged group, wound area ratio (wound area / initial wound area) was significantly higher on days 3–14, ratio of re-epithelialization was significantly lower on day 3 and tended to be lower on day 14, and neutrophil number was significantly higher on day 7 compared with the young group. In contrast, in the aged-E group, wound area ratio was significantly smaller on days 1–14, re-epithelialization ratio was significantly higher on days 3–14, and neutrophil and macrophage number was significantly lower on days 3 and 7 compared with the aged group. These results demonstrate that topical estrogen application to wounds in 80-week-old female mice promoted cutaneous wound healing by reducing wound area and inflammatory response and promoting re-epithelialization.
Collapse
|
28
|
Suzuki K, Yamamoto M, Hernandez-Benitez R, Li Z, Wei C, Soligalla RD, Aizawa E, Hatanaka F, Kurita M, Reddy P, Ocampo A, Hishida T, Sakurai M, Nemeth AN, Nuñez Delicado E, Campistol JM, Magistretti P, Guillen P, Rodriguez Esteban C, Gong J, Yuan Y, Gu Y, Liu GH, López-Otín C, Wu J, Zhang K, Izpisua Belmonte JC. Precise in vivo genome editing via single homology arm donor mediated intron-targeting gene integration for genetic disease correction. Cell Res 2019; 29:804-819. [PMID: 31444470 PMCID: PMC6796851 DOI: 10.1038/s41422-019-0213-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/16/2019] [Indexed: 01/01/2023] Open
Abstract
In vivo genome editing represents a powerful strategy for both understanding basic biology and treating inherited diseases. However, it remains a challenge to develop universal and efficient in vivo genome-editing tools for tissues that comprise diverse cell types in either a dividing or non-dividing state. Here, we describe a versatile in vivo gene knock-in methodology that enables the targeting of a broad range of mutations and cell types through the insertion of a minigene at an intron of the target gene locus using an intracellularly linearized single homology arm donor. As a proof-of-concept, we focused on a mouse model of premature-aging caused by a dominant point mutation, which is difficult to repair using existing in vivo genome-editing tools. Systemic treatment using our new method ameliorated aging-associated phenotypes and extended animal lifespan, thus highlighting the potential of this methodology for a broad range of in vivo genome-editing applications.
Collapse
Grants
- DP1 DK113616 NIDDK NIH HHS
- P30 CA014195 NCI NIH HHS
- R01 HL123755 NHLBI NIH HHS
- J.C.I.B. was supported by The Leona M. and Harry B. Helmsley Charitable Trust (2012-PG-MED002), the G. Harold and Leila Y. Mathers Charitable Foundation, NIH (R01HL123755 and 5 DP1 DK113616), The Progeria Research Foundation, The Glenn Foundation, KAUST, The Moxie Foundation, Fundación Dr. Pedro Guillen, AFE and Universidad Católica San Antonio de Murcia (UCAM).
- K.S. was supported by JSPS KAKENHI (15K21762 and 18H04036), Takeda Science Foundation, The Uehara Memorial Foundation, National Institutes of Natural Sciences (BS291007), The Sumitomo Foundation (170220), The Naito Foundation, The Kurata Grants (1350), Mochida Memorial Foundation and The Inamori Foundation.
Collapse
Affiliation(s)
- Keiichiro Suzuki
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA.
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, 560-8531, Japan.
- Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan.
| | - Mako Yamamoto
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | | | - Zhe Li
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
| | - Christopher Wei
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
| | - Rupa Devi Soligalla
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Emi Aizawa
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan
| | - Fumiyuki Hatanaka
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Masakazu Kurita
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Pradeep Reddy
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Alejandro Ocampo
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Tomoaki Hishida
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Masahiro Sakurai
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Amy N Nemeth
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Estrella Nuñez Delicado
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Josep M Campistol
- Hospital Clinic of Barcelona, Carrer Villarroel, 170, 08036, Barcelona, Spain
| | - Pierre Magistretti
- King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Pedro Guillen
- Fundacion Dr. Pedro Guillen, Clinica CEMTRO, Avenida Ventisquero de la Condesa, 4228035, Madrid, Spain
| | | | - Jianhui Gong
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
- Shenzhen Engineering Laboratory for Innovative Molecular Diagnostics, Shenzhen, 518120, China
| | - Yilin Yuan
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
| | - Ying Gu
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
| | - Guang-Hui Liu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Jun Wu
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Kun Zhang
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
| | | |
Collapse
|
29
|
Pratsinis H, Mavrogonatou E, Kletsas D. Scarless wound healing: From development to senescence. Adv Drug Deliv Rev 2019; 146:325-343. [PMID: 29654790 DOI: 10.1016/j.addr.2018.04.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 03/29/2018] [Accepted: 04/09/2018] [Indexed: 12/21/2022]
Abstract
An essential element of tissue homeostasis is the response to injuries, cutaneous wound healing being the most studied example. In the adults, wound healing aims at quickly restoring the barrier function of the skin, leading however to scar, a dysfunctional fibrotic tissue. On the other hand, in fetuses a scarless tissue regeneration takes place. During ageing, the wound healing capacity declines; however, in the absence of comorbidities a higher quality in tissue repair is observed. Senescent cells have been found to accumulate in chronic unhealed wounds, but more recent reports indicate that their transient presence may be beneficial for tissue repair. In this review data on skin wound healing and scarring are presented, covering the whole spectrum from early embryonic development to adulthood, and furthermore until ageing of the organism.
Collapse
|
30
|
Liu N, Matsumura H, Kato T, Ichinose S, Takada A, Namiki T, Asakawa K, Morinaga H, Mohri Y, De Arcangelis A, Geroges-Labouesse E, Nanba D, Nishimura EK. Stem cell competition orchestrates skin homeostasis and ageing. Nature 2019; 568:344-350. [PMID: 30944469 DOI: 10.1038/s41586-019-1085-7] [Citation(s) in RCA: 240] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 03/07/2019] [Indexed: 01/09/2023]
Abstract
Stem cells underlie tissue homeostasis, but their dynamics during ageing-and the relevance of these dynamics to organ ageing-remain unknown. Here we report that the expression of the hemidesmosome component collagen XVII (COL17A1) by epidermal stem cells fluctuates physiologically through genomic/oxidative stress-induced proteolysis, and that the resulting differential expression of COL17A1 in individual stem cells generates a driving force for cell competition. In vivo clonal analysis in mice and in vitro 3D modelling show that clones that express high levels of COL17A1, which divide symmetrically, outcompete and eliminate adjacent stressed clones that express low levels of COL17A1, which divide asymmetrically. Stem cells with higher potential or quality are thus selected for homeostasis, but their eventual loss of COL17A1 limits their competition, thereby causing ageing. The resultant hemidesmosome fragility and stem cell delamination deplete adjacent melanocytes and fibroblasts to promote skin ageing. Conversely, the forced maintenance of COL17A1 rescues skin organ ageing, thereby indicating potential angles for anti-ageing therapeutic intervention.
Collapse
Affiliation(s)
- Nan Liu
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroyuki Matsumura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Tomoki Kato
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shizuko Ichinose
- Research Center for Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Aki Takada
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeshi Namiki
- Department of Dermatology, Tokyo Medical and Dental University Graduate School and Faculty of Medicine, Tokyo, Japan
| | - Kyosuke Asakawa
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hironobu Morinaga
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuaki Mohri
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Adèle De Arcangelis
- CNRS UMR7104, Inserm U1258, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Development and Stem Cells Department, Université de Strasbourg, Strasbourg, France
| | - Elisabeth Geroges-Labouesse
- CNRS UMR7104, Inserm U1258, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Development and Stem Cells Department, Université de Strasbourg, Strasbourg, France
| | - Daisuke Nanba
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Emi K Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.
| |
Collapse
|
31
|
Abstract
It is well known that advancing age is a factor that affects the normal course of wound healing. The population over the age of 65 years is increasing globally, and this may be accompanied by an increase in the number of individuals experiencing delayed wound healing. There is a breadth of research to show that age-related changes in the epidermis and dermis change the skin's ability to resist damage and injury. In particular, the dermoepidermal junction becomes flattened, which predisposes the tissue to shear and friction forces. Within the dermis, alterations in the amount and structure of collagen also mean that the tissue is much more rigid. Prompt assessment of the skin to identify existing conditions as well as preventive measures is therefore essential. This article discusses the anatomy of the skin and the effects of ageing on the tissues. It also offers some guidance on skin assessment and the basics of skin care.
Collapse
Affiliation(s)
- Hilary Bonifant
- Senior Diabetes Podiatrist, Tū Ora Compass Health, Wellington, New Zealand, Year 2 Student, Masters in Wound Healing and Tissue Repair, Cardiff University School of Medicine, College of Biomedical and Life Sciences
| | - Samantha Holloway
- Reader, Centre for Medical Education Programme Director, MSc in Wound Healing and Tissue Repair, Cardiff University School of Medicine, College of Biomedical and Life Sciences
| |
Collapse
|
32
|
Monson KL, Roberts MA, Knorr KB, Ali S, Meagher SB, Biggs K, Blume P, Brandelli D, Marzioli A, Reneau R, Tarasi F. The permanence of friction ridge skin and persistence of friction ridge skin and impressions: A comprehensive review and new results. Forensic Sci Int 2019; 297:111-131. [PMID: 30784948 DOI: 10.1016/j.forsciint.2019.01.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 10/12/2018] [Accepted: 01/30/2019] [Indexed: 11/24/2022]
Abstract
This study addresses the permanence and persistence of friction ridges and the persistence of impressions made from these friction ridges over months and years. Permanence is the unchanging presence and appearance of friction ridge arrangements and their attributes between recurring observations of the skin. Permanence was evaluated from direct photographs of fingers collected over a period of 30-45 days (covering one or more skin regeneration cycles) as well as after 8 or more years had elapsed. Persistence embodies the operational concept of whether or not a pair of images displays sufficient similarity upon which to base an informed decision that they were made by the same finger, while acknowledging certain dissimilarities or distortions due to friction ridge physiology, image capture, matrix, substrate, and applied pressure. Persistence applies to both friction ridge skin and impressions made from these friction ridges. Permanence and persistence of skin were assessed from direct photographs of fingers taken two months apart and from finger photographs separated by an interval of at least 8 years. Permanence and persistence were also assessed from impressions taken over 4 months, as well as those separated by 8-53 years. Variability due to capture method was assessed by using four image capture methods over a four month period: direct photography of fingers, impressions captured by ink, holographic imaging, and live scan. Qualified latent fingerprint examiners assessed all changes observed over time, as well as any limitations imposed by capture method. The practice of comparison and identification of fingerprint impressions was upheld, as was the prevailing use of the word persistence to describe stability of friction ridges. All photographs and impressions of the same finger were identifiable as originating from the same source. Within all the periods of observation, level 1 detail was permanent and persistent. Persistence, but not permanence, was supported for level 2 detail. Notably, the small changes observed were only in appearance; there were no changes in the presence of new, or absence of existing, minutiae. Level 3 details of ridge edge shape and pore presence were neither permanent nor persistent. Ridge width was permanent and persistent. Incipient ridges were neither permanent nor persistent.
Collapse
Affiliation(s)
| | | | | | | | | | - Kevin Biggs
- Mesa Police Department Forensic Services Section, Mesa, AZ, United States
| | - Patti Blume
- Orange County Sheriff"s Department, CA, United States
| | | | - Albert Marzioli
- Contra Costa County Forensic Services Division, Martinez, CA, United States
| | - Robert Reneau
- Illinois State Police Forensic Science Laboratory, Chicago, IL, United States
| | - Frank Tarasi
- Formerly of Iowa Division of Criminal Investigation Criminalistics Laboratory, Ankeny, IA, United States
| |
Collapse
|
33
|
Zamanian A, Azizi M, Ghasemi M, Behrangi E, Naeji S. Comparing the effectiveness of fractional CO 2 laser and the combination therapy with micro-needling and topical 10% trichloroacetic acid to remove infra-orbital dark circles in Tehran women. J COSMET LASER THER 2019. [PMID: 28622082 DOI: 10.1080/14764172.2017.1341047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Infra orbital dark circles are now recognized as being a cosmetic problem that should be considered in treatment issue. The present study aimed to assess and compare the clinical efficiency of the combination of micro-needling and 10% trichloroacetic acid (TCA) cream as well as carbon dioxide laser in the management of infra-orbital dark circles. METHODS This randomized clinical trial was performed on women aged 28-62 years who complained of infra-orbital dark circles. The patients were randomly assigned to be treated with micro-needling combined with 10% TCA cream topically or CO2 laser. The treatment period in each group included three sessions with an interval of one month between sessions. The assessment was based on both subjective and objective methods. RESULTS the mean of ΔE (the difference in the intensity of darkening at infra-orbital points and other points of the face) was significantly higher in the laser group than in the other group in all sessions. The patients who were treated with laser were found to have a higher level of satisfaction in the fifth visit when compared to those who received the other treatment method. CONCLUSION Regarding clinical effectiveness and the patients' compliance, fractional CO2 laser was more preferred in the combination therapy with micro-needling and topical TCA for removing infra-orbital dark circles.
Collapse
Affiliation(s)
- Abbas Zamanian
- a Department of Dermatology , Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran , Iran
| | - Mahba Azizi
- a Department of Dermatology , Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran , Iran
| | - Mohammadreza Ghasemi
- a Department of Dermatology , Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran , Iran
| | - Elham Behrangi
- a Department of Dermatology , Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran , Iran
| | - Sedigheh Naeji
- a Department of Dermatology , Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran , Iran
| |
Collapse
|
34
|
Zahr AS, Kononov T, Sensing W, Biron JA, Gold MH. An open-label, single-site study to evaluate the tolerability, safety, and efficacy of using a novel facial moisturizer for preparation and accelerated healing pre and post a single full-face radiofrequency microneedling treatment. J Cosmet Dermatol 2018; 18:94-106. [PMID: 30456804 DOI: 10.1111/jocd.12817] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/23/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Skincare cosmeceutical products have been shown to address intrinsic and extrinsic skin aging. Radiofrequency (RF) with microneedling is effective and safe in improving skin laxity and texture. Pairing skincare cosmeceutical products pre- and post-procedure is beneficial as it enhances patient results, patient results, patient experience, and reduces patient downtime. OBJECTIVE To evaluate the tolerability, safety, and efficacy of a multi-ingredient anti-aging facial moisturizer when applied pre- and post-procedure consisting of a single RF microneedling treatment. METHOD Fifteen female patients, aged 37-60, Fitzpatrick skin types I-IV, with mild-to-moderate wrinkles were included in the study. Patients applied a multi-ingredient anti-aging facial moisturizer twice a day (morning and night) two weeks prior to RF microneedling and four weeks post-RF microneedling (twice a day). At each time point, investigator objective assessment, self-assessments, and clinical photography were taken. RESULT There were no adverse events as evaluated by the investigator. For this combined treatment and procedure patient scored comfort as the highest for satisfaction. Tolerability parameters erythema and edema were reported after RF microneedling treatment and were significant compared to the pre-procedure timepoint. Eighty percent of patients showed an improvement in Glogau Wrinkle Scale, but improvement was not statistically significant between baseline and end of study. Improvements in all skin attributes (radiance, tone, smoothness, texture, redness, dryness, and overall appearance) were statistically significant at the end of the study. Self-perceived skin attribute improvements included overall improvement, brightness, texture, pigmentation, redness, and tightness. The combination of the anti-aging facial moisturizer and RF microneedling was recommended by the patients in this study. CONCLUSION This clinical study positively supports the hypothesis that combining the multi-ingredient anti-aging facial moisturizer pre- and post-RF microneedling was safe and tolerable for the patients.
Collapse
Affiliation(s)
| | | | | | - Julie A Biron
- Tennessee Clinical Research Center, Nashville, Tennessee
| | - Michael H Gold
- Tennessee Clinical Research Center, Nashville, Tennessee
| |
Collapse
|
35
|
Ohto-Fujita E, Shimizu M, Sano S, Kurimoto M, Yamazawa K, Atomi T, Sakurai T, Murakami Y, Takami T, Murakami T, Yoshimura K, Hasebe Y, Atomi Y. Solubilized eggshell membrane supplies a type III collagen-rich elastic dermal papilla. Cell Tissue Res 2018; 376:123-135. [PMID: 30448901 DOI: 10.1007/s00441-018-2954-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/27/2018] [Indexed: 12/19/2022]
Abstract
Signs of aging in facial skin correlate with lifespan and chronic disease; however, the health of aging skin has not been extensively studied. In healthy young skin, the dermis forms a type III collagen-rich dermal papilla, where capillary vessels supply oxygen and nutrients to basal epidermal cells. Chicken eggshell membranes (ESMs) have been used as traditional medicines to promote skin wound healing in Asian countries for many years. Previously, we designed an experimental system in which human dermal fibroblasts (HDFs) were cultured on a dish with a solubilized ESM (S-ESM) bound to an artificial phosphorylcholine polymer; we found that genes that promoted the health of the papillary dermis, such as those encoding type III collagen, were induced in the S-ESM environment. The present study found that a gel with a ratio of 20% type III/80% type I collagen, similar to that of the baby skin, resulted in a higher elasticity than 100% type I collagen (p < 0.05) and that HDFs in the gel showed high mitochondrial activity. Thus, we decided to perform further evaluations to identify the effects of S-ESM on gene expression in the skin of hairless mice and found a significant increase of type III collagen in S-ESM. Picrosirius Red staining showed that type III collagen significantly increased in the papillary dermis after S-ESM treatment. Moreover, S-ESM application significantly improved human arm elasticity and reduced facial wrinkles. ESMs may have applications in extending lifespan by reducing the loss of tissue elasticity through the increase of type III collagen.
Collapse
Affiliation(s)
- Eri Ohto-Fujita
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Miho Shimizu
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Shoei Sano
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Masashi Kurimoto
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Kai Yamazawa
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Tomoaki Atomi
- Faculty of Health Sciences, Department of Physical Therapy, Kyorin University, 5-4-1 Shimorenjaku, Mitaka-shi, Tokyo, 181-8612, Japan
| | - Takashi Sakurai
- Department of Life Sciences, The Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan.,Astellas Institute for Regenerative Medicine, 33 Locke Drive, Marlborough, MA, 01752, USA
| | - Yoshihiko Murakami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Taku Takami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Kotaro Yoshimura
- Department of Plastic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi-ken, 329-0498, Japan
| | - Yukio Hasebe
- Almado Inc., 3-6-18 Kyobashi, Chuo-ku, Tokyo, 104-0031, Japan
| | - Yoriko Atomi
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan.
| |
Collapse
|
36
|
Miura K, Yamashita K. Evaluation of aging, diabetes mellitus, and skin wounds by scanning acoustic microscopy with protease digestion. PATHOBIOLOGY OF AGING & AGE RELATED DISEASES 2018; 8:1516072. [PMID: 30220987 PMCID: PMC6136385 DOI: 10.1080/20010001.2018.1516072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/13/2018] [Accepted: 08/20/2018] [Indexed: 11/02/2022]
Abstract
Scanning acoustic microscopy (SAM) can assess tissue stiffness by calculating the speed of sound (SOS) through tissues. SOS increases as tissue stiffness increases. Sensitivity to protease digestion depends on protein type, concentration, and modification. We analyzed the SOS images of formalin-fixed paraffin-embedded skin sections from elderly, young, diabetic, and nondiabetic subjects, as well as chronic and acute wounds. SAM provided high-resolution histology similar to LM and revealed characteristic SOS alteration following pepsin treatment. SOS values of dermis samples from elderly subjects (especially females) were lower than those of younger adults, which was indicative of age-related dermal softening and loosening. SOS values of elderly females were lower than those of younger females and elderly males. Dermal SOS showed a positive correlation with epidermal thickness. SOS values of epidermis of elderly subjects were higher than those of younger adults and showed a rapid decline 0.5h after protease digestion. Reticular dermis of diabetic patients exhibited greater pepsin resistance than that of nondiabetic patients. Chronic wounds exhibited greater SOS values and pepsin resistance than acute wounds. SOS variation with aging, diabetes mellitus, and wound fibrosis reflected histological and mechanical changes associated with senescence and disease duration. Epidermal thickness reflects age-related changes in dermal stiffness.
Collapse
Affiliation(s)
- Katsutoshi Miura
- Department of Health Science, Pathology and Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kanna Yamashita
- Department of Health Science, Pathology and Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| |
Collapse
|
37
|
Age-Associated Differences in Infection of Human Skin in the SCID Mouse Model of Varicella-Zoster Virus Pathogenesis. J Virol 2018; 92:JVI.00002-18. [PMID: 29563288 DOI: 10.1128/jvi.00002-18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 03/14/2018] [Indexed: 01/05/2023] Open
Abstract
Varicella-zoster virus (VZV) is the skin-tropic human alphaherpesvirus responsible for both varicella-zoster and herpes zoster. Varicella-zoster and herpes zoster skin lesions have similar morphologies, but herpes zoster occurs disproportionally in older individuals and is often associated with a more extensive local rash and severe zoster-related neuralgia. We hypothesized that skin aging could also influence the outcome of the anterograde axonal transport of VZV to skin. We utilized human skin xenografts maintained in immunodeficient (SCID) mice to study VZV-induced skin pathology in vivo in fetal and adult skin xenografts. Here we found that VZV replication is enhanced in skin from older compared to younger adults, correlating with clinical observations. In addition to measures of VZV infection, we examined the expression of type I interferon (IFN) pathway components in adult skin and investigated elements of the cutaneous proliferative and inflammatory response to VZV infection in vivo Our results demonstrated that VZV infection of adult skin triggers intrinsic IFN-mediated responses such as we have described in VZV-infected fetal skin xenografts, including MxA as well as promyelocytic leukemia protein (PML), in skin cells surrounding lesions. Further, we observed that VZV elicited altered cell signaling and proliferative and inflammatory responses that are involved in wound healing, driven by follicular stem cells. These cellular changes are consistent with VZV-induced activation of STAT3 and suggest that VZV exploits the wound healing process to ensure efficient delivery of the virus to keratinocytes. Adult skin xenografts offer an approach to further investigate VZV-induced skin pathologies in vivoIMPORTANCE Varicella-zoster virus (VZV) is the agent responsible for both varicella-zoster and herpes zoster. Herpes zoster occurs disproportionally in older individuals and is often associated with a more extensive local rash and severe zoster-related neuralgia. To examine the effect of skin aging on VZV skin lesions, we utilized fetal and adult human skin xenografts maintained in immunodeficient (SCID) mice. We measured VZV-induced skin pathology, examined the expression of type I interferon (IFN) pathway components in adult skin, and investigated elements of the cutaneous proliferative and inflammatory response to VZV infection in vivo Our results demonstrate that characteristics of aging skin are preserved in xenografts; that VZV replication is enhanced in skin from older compared to younger adults, correlating with clinical observations; and that VZV infection elicits altered cell signaling and inflammatory responses. Adult skin xenografts offer an approach to further investigate VZV-induced skin pathologies in vivo.
Collapse
|
38
|
The Rejuvenating Effect and Tolerability of an Auto-Cross-Linked Hyaluronic Acid on Décolletage: A Pilot Prospective Study. Aesthetic Plast Surg 2018; 42:520-529. [PMID: 29218478 DOI: 10.1007/s00266-017-1022-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/29/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND A novel auto-cross-linked hyaluronic acid formulation (HA-ACP) has been proposed as a treatment for skin rejuvenation. This prospective pilot study aims to assess its tolerability and performance in the treatment of skin aging of the décolletage. METHODS Fifteen women (mean age 49.0 ± 8.0 (range 30-65)) who complained about the appearance of their décolletage were prospectively enrolled and treated with three sets of HA-ACP (IAL-SYSTEM ACP®) intradermal injections, administered three weeks apart. Control visits followed at 80 and 120 days from enrollment. The rejuvenating effect was assessed using the Beagley-Gibson and Fabi-Bolton scores. The investigators and the subjects also subjectively assessed skin appearance using a 1-10 scale. The rejuvenating effect and its persistence were assessed comparing the scores collected at the different experimental times by means of Wilcoxon rank tests. Adverse events and their duration were recorded and compared to those reported in the literature. RESULTS The HA-ACP formulation provided a significant improvement according to the Beagley-Gibson score (p < 0.005) at all time points. At the 120-day follow-up, the Fabi-Bolton score was significantly improved with respect to baseline (p < 0.05). The rejuvenating effect persisted unaltered between the 80-day and the 120-day visits. At the 120-day visit, the subjects' and investigators' subjective scores were between 8 and 10 in most cases. No unexpected adverse effects were observed. All adverse effects were well tolerated and disappeared over a short period. CONCLUSIONS The HA-ACP treatment under investigation is safe, well tolerated, and provides effective and long-lasting décolletage rejuvenation. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Collapse
|
39
|
|
40
|
Qin H, Zhang G, Zhang L. GSK126 (EZH2 inhibitor) interferes with ultraviolet A radiation-induced photoaging of human skin fibroblast cells. Exp Ther Med 2018; 15:3439-3448. [PMID: 29545866 DOI: 10.3892/etm.2018.5863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 03/24/2017] [Indexed: 12/31/2022] Open
Abstract
Polycomb group genes (PcG) encode chromatin modification proteins that are involved in the epigenetic regulation of cell differentiation, proliferation and the aging processes. The key subunit of the PcG complex, enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2), has a central role in a variety of mechanisms, such as the formation of chromatin structure, gene expression regulation and DNA damage. In the present study, ultraviolet A (UVA) was used to radiate human dermal fibroblasts in order to construct a photo-aged cell model. Subsequently, the cell viability assay, Hoechst staining, apoptosis detection using flow cytometry, senescence-associated β-galactosidase (SA-β-gal) staining and erythrocyte exclusion experiments were performed. GSK126, a histone methylation enzyme inhibitor of EZH2, was used as an experimental factor. Results suggested that GSK126 downregulated the mRNA expression levels of EZH2 and upregulated the mRNA expression levels of BMI-1. Notably, GSK126 affected the transcription of various photoaging-related genes and thus protected against photoaging induced by UVA radiation.
Collapse
Affiliation(s)
- Haiyan Qin
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Guang Zhang
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Lianbo Zhang
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| |
Collapse
|
41
|
Park B, Hwang E, Seo SA, Cho JG, Yang JE, Yi TH. Eucalyptus globulus extract protects against UVB-induced photoaging by enhancing collagen synthesis via regulation of TGF-β/Smad signals and attenuation of AP-1. Arch Biochem Biophys 2018; 637:31-39. [DOI: 10.1016/j.abb.2017.11.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/31/2017] [Accepted: 11/12/2017] [Indexed: 10/18/2022]
|
42
|
Gardner JK, Mamotte CD, Jackaman C, Nelson DJ. Modulation of dendritic cell and T cell cross-talk during aging: The potential role of checkpoint inhibitory molecules. Ageing Res Rev 2017; 38:40-51. [PMID: 28736117 DOI: 10.1016/j.arr.2017.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/17/2017] [Accepted: 07/17/2017] [Indexed: 12/24/2022]
Abstract
Dendritic cells (DCs) undergo continuous changes throughout life, and there is evidence that elderly DCs have a reduced capacity to stimulate T cells, which may contribute to impaired anti-tumour immune responses in elderly people with cancer. Changes in checkpoint inhibitory molecules/pathways during aging may be one mechanism that impairs the ability of elderly DCs to activate T cells. However, little is currently known regarding the combined effects of aging and cancer on DC and T cell inhibitory molecules/pathways. In this review, we discuss our current understanding of the influence of aging and cancer on key DC and T cell inhibitory molecules/pathways, the potential underlying cellular and molecular mechanisms contributing to their modulation, and the possibility of therapeutically targeting inhibitory molecules in elderly cancer patients.
Collapse
|
43
|
|
44
|
Ocampo A, Reddy P, Martinez-Redondo P, Platero-Luengo A, Hatanaka F, Hishida T, Li M, Lam D, Kurita M, Beyret E, Araoka T, Vazquez-Ferrer E, Donoso D, Roman JL, Xu J, Rodriguez Esteban C, Nuñez G, Nuñez Delicado E, Campistol JM, Guillen I, Guillen P, Izpisua Belmonte JC. In Vivo Amelioration of Age-Associated Hallmarks by Partial Reprogramming. Cell 2017; 167:1719-1733.e12. [PMID: 27984723 DOI: 10.1016/j.cell.2016.11.052] [Citation(s) in RCA: 496] [Impact Index Per Article: 70.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/14/2016] [Accepted: 11/28/2016] [Indexed: 12/12/2022]
Abstract
Aging is the major risk factor for many human diseases. In vitro studies have demonstrated that cellular reprogramming to pluripotency reverses cellular age, but alteration of the aging process through reprogramming has not been directly demonstrated in vivo. Here, we report that partial reprogramming by short-term cyclic expression of Oct4, Sox2, Klf4, and c-Myc (OSKM) ameliorates cellular and physiological hallmarks of aging and prolongs lifespan in a mouse model of premature aging. Similarly, expression of OSKM in vivo improves recovery from metabolic disease and muscle injury in older wild-type mice. The amelioration of age-associated phenotypes by epigenetic remodeling during cellular reprogramming highlights the role of epigenetic dysregulation as a driver of mammalian aging. Establishing in vivo platforms to modulate age-associated epigenetic marks may provide further insights into the biology of aging.
Collapse
Affiliation(s)
- Alejandro Ocampo
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Pradeep Reddy
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | | | - Aida Platero-Luengo
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Fumiyuki Hatanaka
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Tomoaki Hishida
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Mo Li
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - David Lam
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Masakazu Kurita
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Universidad Católica San Antonio de Murcia (UCAM) Campus de los Jerónimos, 30107 Guadalupe, Murcia, Spain
| | - Ergin Beyret
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Toshikazu Araoka
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Universidad Católica San Antonio de Murcia (UCAM) Campus de los Jerónimos, 30107 Guadalupe, Murcia, Spain
| | - Eric Vazquez-Ferrer
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - David Donoso
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Jose Luis Roman
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Jinna Xu
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | | | - Gabriel Nuñez
- Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Estrella Nuñez Delicado
- Universidad Católica San Antonio de Murcia (UCAM) Campus de los Jerónimos, 30107 Guadalupe, Murcia, Spain
| | - Josep M Campistol
- Hospital Clinic, University of Barcelona, IDIBAPS, 08036 Barcelona, Spain
| | - Isabel Guillen
- Fundación Dr. Pedro Guillén, Clínica Cemtro, 28035 Madrid, Spain
| | - Pedro Guillen
- Fundación Dr. Pedro Guillén, Clínica Cemtro, 28035 Madrid, Spain
| | | |
Collapse
|
45
|
Jiang ZY, Liu MZ, Sun W, Liao XC, Guo GH. Wound Management. J Burn Care Res 2017; 38:e782-e785. [PMID: 28030439 DOI: 10.1097/bcr.0000000000000480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Zheng-Ying Jiang
- From the Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | | | | | | | | |
Collapse
|
46
|
Abstract
Pressure ulcers are a serious health concern for elders in acute care, long-term care, and home care settings. The occurrence of a pressure ulcer is considered a sentinel event in terms of quality of care. Pressure ulcers may result in significant morbidity and mortality and are associated with high cost in terms of human suffering, cost of treatment, and possible litigation. Several risk factors have been identified for the development of pressure ulcers. Identification of elderly patients at risk of pressure and implementation of preventative measures are essential. Management of a pressure ulcer involves debridement, cleansing, selection of an appropriate dressing, and prevention of infection. This article reviews suggested guidelines for the prevention and management of pressure ulcers.
Collapse
Affiliation(s)
- Christine K. O’Neil
- Division of Social, Clinical, and Administrative Science, Mylan School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania,
| |
Collapse
|
47
|
Langton AK, Halai P, Griffiths CE, Sherratt MJ, Watson RE. The impact of intrinsic ageing on the protein composition of the dermal-epidermal junction. Mech Ageing Dev 2016; 156:14-6. [DOI: 10.1016/j.mad.2016.03.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/08/2016] [Accepted: 03/19/2016] [Indexed: 10/22/2022]
|
48
|
Production of a Self-Aligned Scaffold, Free of Exogenous Material, from Dermal Fibroblasts Using the Self-Assembly Technique. Dermatol Res Pract 2016; 2016:5397319. [PMID: 27051415 PMCID: PMC4804048 DOI: 10.1155/2016/5397319] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 02/17/2016] [Indexed: 01/09/2023] Open
Abstract
Many pathologies of skin, especially ageing and cancer, involve modifications in the matrix alignment. Such tissue reorganization could have impact on cell behaviour and/or more global biological processes. Tissue engineering provides accurate study model by mimicking the skin and it allows the construction of versatile tridimensional models using human cells. It also avoids the use of animals, which gave sometimes nontranslatable results. Among the various techniques existing, the self-assembly method allows production of a near native skin, free of exogenous material. After cultivating human dermal fibroblasts in the presence of ascorbate during two weeks, a reseeding of these cells takes place after elevation of the resulting stroma on a permeable ring and culture pursued for another two weeks. This protocol induces a clear realignment of matrix fibres and cells parallel to the horizon. The thickness of this stretched reconstructed tissue is reduced compared to the stroma produced by the standard technique. Cell count is also reduced. In conclusion, a new, easy, and inexpensive method to produce aligned tissue free of exogenous material could be used for fundamental research applications in dermatology.
Collapse
|
49
|
Objektivierbare Gesichtsfeldeinschränkung bei Patienten mit Dermatochalasis vor und nach Blepharoplastik-Operation. SPEKTRUM DER AUGENHEILKUNDE 2015. [DOI: 10.1007/s00717-015-0270-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
50
|
Diekmann J, Alili L, Scholz O, Giesen M, Holtkötter O, Brenneisen P. A three-dimensional skin equivalent reflecting some aspects of in vivo aged skin. Exp Dermatol 2015; 25:56-61. [PMID: 26440058 DOI: 10.1111/exd.12866] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2015] [Indexed: 12/20/2022]
Abstract
Human skin undergoes morphological, biochemical and functional modifications during the ageing process. This study was designed to produce a 3-dimensional (3D) skin equivalent in vitro reflecting some aspects of in vivo aged skin. Reconstructed skin was generated by co-culturing skin fibroblasts and keratinocytes on a collagen-glycosaminoglycan-chitosan scaffold, and ageing was induced by the exposition of fibroblasts to Mitomycin-C (MMC). Recently published data showed that MMC treatment resulted in a drug-induced accelerated senescence (DIAS) in human dermal fibroblast cultures. Next to established ageing markers, histological changes were analysed in comparison with in vivo aged skin. In aged epidermis, the filaggrin expression is reduced in vivo and in vitro. Furthermore, in dermal tissue, the amount of elastin and collagen is lowered in aged skin in vivo as well as after the treatment of 3D skin equivalents with MMC in vitro. Our results show histological signs and some aspects of ageing in a 3D skin equivalent in vitro, which mimics aged skin in vivo.
Collapse
Affiliation(s)
- Johanna Diekmann
- Institute of Biochemistry & Molecular Biology I, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.,Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - Lirija Alili
- Institute of Biochemistry & Molecular Biology I, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Okka Scholz
- Institute of Biochemistry & Molecular Biology I, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.,Henkel AG & Co. KGaA, Düsseldorf, Germany
| | | | | | - Peter Brenneisen
- Institute of Biochemistry & Molecular Biology I, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| |
Collapse
|