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Lim JH, Jang YS, Kim DB, Jang SY, Park EC. Association between body mass index and atopic dermatitis among adolescents: Findings from a national cross-sectional study in Korea. PLoS One 2024; 19:e0307140. [PMID: 39028723 PMCID: PMC11259265 DOI: 10.1371/journal.pone.0307140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 07/02/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND The association between atopic dermatitis and childhood overweight and obesity has been studied extensively, but the results are inconclusive; most studies have focused on body mass index as a measure of obesity, with few investigating the relationship with underweight. Therefore, this study aimed to investigate the association between body mass index levels and atopic dermatitis in Korean adolescents. METHODS 3-year (2019-2021) of Korea Youth Risk Behavior Web-based Survey were used. Body mass index was used to measure obesity and a recent diagnosis within the past year was used as the criterion for atopic dermatitis. Multiple logistic regression analyses were performed to explore the associations. The odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. RESULTS A total of 144,183 adolescents aged 12-18 years were included in this study (74,704 males and 69,479 females). Over the past year, 5.4% of males and 7.3% of females were diagnosed with atopic dermatitis in the study population. Adolescents with normal weight (males [OR: 1.19, CI: 1.02-1.38]; females [OR: 1.26, CI: 1.10-1.43]) and overweight (males [OR: 1.37, CI: 1.16-1.61]; females [OR: 1.37, CI: 1.19-1.58]) were more likely to develop atopic dermatitis than underweight. CONCLUSION Increased degree of obesity may contribute to the development of atopic dermatitis. The normal-weight and obese adolescents had higher likelihood of developing atopic dermatitis compared with the underweight adolescents.
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Affiliation(s)
- Jae Hyeok Lim
- Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Yun Seo Jang
- Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Dan Bi Kim
- Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Suk-Yong Jang
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
- Department of Healthcare Management, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Eun-Cheol Park
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Lu Y, Tang X, Wang W, Yang J, Wang S. The role of deacetylase SIRT1 in allergic diseases. Front Immunol 2024; 15:1422541. [PMID: 39081309 PMCID: PMC11286408 DOI: 10.3389/fimmu.2024.1422541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024] Open
Abstract
The silent information regulator sirtuin 1 (SIRT1) protein is an NAD+-dependent class-III lysine deacetylase that serves as an important post-transcriptional modifier targeting lysine acetylation sites to mediate deacetylation modifications of histones and non-histone proteins. SIRT1 has been reported to be involved in several physiological or pathological processes such as aging, inflammation, immune responses, oxidative stress and allergic diseases. In this review, we summarized the regulatory roles of SIRT1 during allergic disorder progression. Furthermore, we highlight the therapeutic effects of targeting SIRT1 in allergic diseases.
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Affiliation(s)
- Yun Lu
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Tang
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
| | - Wenxin Wang
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jun Yang
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
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Chen PY, Shen M, Cai SQ, Tang ZW. Association Between Atopic Dermatitis and Aging: Clinical Observations and Underlying Mechanisms. J Inflamm Res 2024; 17:3433-3448. [PMID: 38828054 PMCID: PMC11144009 DOI: 10.2147/jir.s467099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
As one of the most prevalent chronic inflammatory skin diseases, atopic dermatitis (AD) increasingly affects the aging population. Amid the ongoing global aging trend, it's essential to recognize the intricate relationship between AD and aging. This paper reviews existing knowledge, summarizing clinical observations of associations between AD and aging-related diseases in various systems, including endocrine, cardiovascular, and neurological. Additionally, it discusses major theories explaining the correlation, encompassing skin-mucosal barriers, systemic inflammation and stress, genes, signal transduction, and environmental and behavioral factors. The association between AD and aging holds significant importance, both in population and basic perspectives. While further research is warranted, this paper aims to inspire deeper exploration of inflammation/allergy-aging dynamics and the timely management of elderly patients with AD.
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Affiliation(s)
- Peng-Yu Chen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Minxue Shen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, People’s Republic of China
- Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis (Xiangya Hospital), Changsha, 410008, People’s Republic of China
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, 410078, People’s Republic of China
| | - Sui-Qing Cai
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Zhen-Wei Tang
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
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Ding T, Zeng L, Xia Y, Zhang B, Cui D. miR-135a Mediates Mitochondrial Oxidative Respiratory Function through SIRT1 to Regulate Atrial Fibrosis. Cardiology 2024; 149:286-296. [PMID: 38228115 DOI: 10.1159/000536059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/28/2023] [Indexed: 01/18/2024]
Abstract
INTRODUCTION This study aimed to explore the function of miR-135a in the progress of atrial fibrosis and the mechanism of miR-135a/SIRT1 (sirtuin 1) in human cardiac fibroblasts and mouse cardiac fibroblasts (MCFs) mediating the regulation of atrial fibrosis by mitochondrial oxidative respiration function. METHODS Using Ang II (angiotensin II) to induce fibrosis in HCFs (human corneal fibroblasts) and MCF (Michigan Cancer Foundation, MCF) cells in vitro, the miRNA-seq results of previous studies were validated. Proliferative and invasive ability of HCFs and MCFs was detected by Cell Counting Kit-8 assay (CCK-8) and scratch experiment after overexpressing miR-135a in HCFs and MCF cells. Protein and mRNA expression was tested using Western blot and qPCR. The target of miR-135a was verified as SIRT1 by a luciferase reporter assay and the activities of the mitochondrial respiratory enzyme complexes I, II, III, and IV were determined colorimetrically. The activities of malondialdehyde, reactive oxygen species, and superoxide dismutase in cells were detected with enzyme-linked immunosorbent assay (ELISA). RESULTS miR-135a expression was elevated in HCFs and MCFs cells in the Ang II group than control group. Overexpression of miR-135a could promote the proliferation, migration, oxidative stress, as well as fibrosis of cardiac fibroblasts and suppresses mitochondrial activity. In addition, we found SIRT1 was a target gene of miR-135a. What is more, the findings showed miR-135a promoted fibrosis in HCFs and MCFs cells acting through regulation of SIRT1. CONCLUSIONS miR-135a mediates mitochondrial oxidative respiratory function through SIRT1 to regulate atrial fibrosis.
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Affiliation(s)
- Tianhang Ding
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Liyan Zeng
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Ying Xia
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Baojun Zhang
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Dongji Cui
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
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Szychowski KA, Skóra B. Involvement of the aryl hydrocarbon receptor (AhR) in the mechanism of action of elastin-derived peptide (VGVAPG) and its impact on neurosteroidogenesis. Neurochem Int 2023; 171:105615. [PMID: 37769996 DOI: 10.1016/j.neuint.2023.105615] [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: 06/27/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 10/03/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor from the family of basic helix-loop-helix transcription factors. Several studies have indicated an important role of AhR signaling pathways in senescence, aging, and neurodegenerative diseases. During aging, elastin is degraded and elastin-derived peptides (EDPs) are formed. EDPs have been detected in human blood, serum, and cerebrospinal fluid. Literature data suggest a role of EDPs in the development of neurodegenerative diseases. However, the impact of EDPs on the AhR signaling pathway has never been investigated. Therefore, the aim of our paper was to study the role of AhR in the mechanism of action of the VGVAPG peptide (one of the EDPs) in mouse primary astrocytes in vitro. Our experiments have shown that AhR plays an important role in the EDP mechanism of action in a model of mouse primary astrocytes. Moreover, due to the involvement of Sirt3, Pparγ, AhR, Glb1, Nf-κb1, Ece1, Ide, and Nepr genes and the production and release of neurosteroids, VGVAPG can accelerate the development of neurodegenerative diseases in which the proper metabolism of astrocytes is crucial. Furthermore, our studies have proved that AhR is likely involved in the co-control of the Sirt1, Glb1, Nf-κb1, Ece1, and Nepr expression in astrocytes.
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Affiliation(s)
- Konrad A Szychowski
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225, Rzeszow, Poland.
| | - Bartosz Skóra
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225, Rzeszow, Poland
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He T, Bai X, Li Y, Zhang D, Xu Z, Yang X, Hu D, Han J. Insufficient SIRT1 in macrophages promotes oxidative stress and inflammation during scarring. J Mol Med (Berl) 2023; 101:1397-1407. [PMID: 37707556 DOI: 10.1007/s00109-023-02364-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/18/2023] [Accepted: 08/18/2023] [Indexed: 09/15/2023]
Abstract
Macrophage is a critical regulator in wound healing and scar formation, and SIRT1 is related to macrophage activation and polarization, while the specific mechanism is still unclear. To explore the specific effects of SIRT1 in scarring, we established a skin incision mouse model and LPS-induced inflammation cell model. The expression of SIRT1 in tissue and macrophage was detected, and the level of SIRT1 was changed to observe the downstream effects. LPS-induced macrophages with or without SIRT1 deficiency were used for TMT-based quantitative proteomic analysis. SIRT1 was suppressed in scar while increased in macrophages of scar tissue. And macrophages were proven to be necessary for wound healing. In the early stage of wound healing, knockout of SIRT1 in macrophage could greatly strengthen inflammation and finally promote scarring. NADH-related activities and oxidoreductase activities were differentially expressed in TMT-based quantitative proteomic analysis. We confirmed that ROS production and NOX2 level were elevated after LPS stimulation while the Nrf2 pathway and the downstream proteins, such as Nqo-1 and HO-1, were suppressed. In contrast, the suppression of SIRT1 strengthened this trend. The NF-κB pathway was remarkably activated compared with the control group. Insufficient increase of SIRT1 in macrophage leads to over activated oxidative stress and activates NF-κB pathways, which then promotes inflammation in wound healing and scarring. Further increasing SIRT1 in macrophages could be a promising method to alleviate scarring. KEY MESSAGES: SIRT1 was suppressed in scar while increased in macrophages of scar tissue. Inhibition of SIRT1 in macrophage leads to further activated oxidative stress. SIRT1 is negatively related to oxidative stress in macrophage. The elevation of SIRT1 in macrophage is insufficient during scarring.
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Affiliation(s)
- Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Xiaozhi Bai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Yan Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Dongliang Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Zhigang Xu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Xuekang Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China.
| | - Juntao Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi, 710032, China.
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7
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Hao L, Nam KH, Lee GJ, Kim D, Shin JM, Lee Y, Kim CD, Kim SJ, Yun SK, Park BH, Park J. SIRT1 downregulation provokes immune-inflammatory responses in hair follicle outer root sheath cells and may contribute to development of alopecia areata. J Dermatol Sci 2023:S0923-1811(23)00126-3. [PMID: 37268558 DOI: 10.1016/j.jdermsci.2023.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND Silent information regulator 1 (SIRT1), a type III histone deacetylase, is involved in various cutaneous and systemic autoimmune diseases including systemic lupus erythematosus, rheumatoid arthritis, and psoriasis. However, little is known about the role of SIRT1 in the development of alopecia areata (AA). OBJECTIVES This study investigated whether SIRT1 regulates the hair follicle immune system and is involved in AA pathogenesis. METHODS SIRT1 expression in human scalp tissue was analyzed using immunohistochemical staining, qPCR, and western blotting. The regulatory effect of SIRT1 was evaluated after stimulation with the double-stranded RNA mimic polyinosinic:polycytidylic acid (poly I:C) in hair follicle outer root sheath (ORS) cells and C3H/HeJ mice. RESULTS SIRT1 expression was significantly reduced in the AA scalp compared to the normal scalp. SIRT1 inhibition upregulated MHC class I polypeptide-related sequence A and UL16 binding protein 3 in hair follicle ORS cells. SIRT1 inhibition also promoted the production of Th1 cytokines (IFN-γ and TNF-α), IFN-inducible chemokines (CXCL9 and CXCL10), and T cell migration in ORS cells. Conversely, SIRT1 activation suppressed the autoreactive inflammatory responses. The counteractive effect of the immune response by SIRT1 was mediated through the deacetylation of NF-κB and phosphorylation of STAT3. CONCLUSION SIRT1 downregulation induces immune-inflammatory responses in hair follicle ORS cells and may contribute to AA development.
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Affiliation(s)
- Lihua Hao
- Department of Dermatology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Kyung-Hwa Nam
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea
| | - Geon-Jong Lee
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Doyeon Kim
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Jung-Min Shin
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Young Lee
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Chang-Deok Kim
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Seong-Jin Kim
- Department of Dermatology, Chonnam National University Medical School, Kwangju, the Republic of Korea
| | - Seok-Kweon Yun
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea
| | - Byung-Hyun Park
- Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea; Department of Biochemistry, Jeonbuk National University Medical School, Jeonju, the Republic of Korea
| | - Jin Park
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea.
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8
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Gilbert MM, Mathes SC, Mahajan AS, Rohan CA, Travers JB, Thyagarajan A. The role of sirtuins in dermal fibroblast function. Front Med (Lausanne) 2023; 10:1021908. [PMID: 36993812 PMCID: PMC10040577 DOI: 10.3389/fmed.2023.1021908] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
The sirtuins are a family of seven proteins that perform a variety of dermatological functions and help maintain both the structure and function of the skin. More specifically, the sirtuins have been shown to be altered in multiple dermal cell types including dermal fibroblasts. The functions of dermal fibroblasts are extensive, and include playing a significant role in wound healing as well as helping to maintain the integrity of the skin. As dermal fibroblasts age, they can undergo a state of permanent cell cycle arrest, known as cellular senescence. This senescent process can occur as a result of various stressors, including oxidative stress, ultraviolet radiation -induced stress, and replicative stress. In recent years, there has been a growing interest in both enhancing the cutaneous fibroblast’s ability to facilitate wound healing and altering fibroblast cellular senescence. Thus, in this review, we examine the relationship between sirtuin signaling and dermal fibroblasts to understand how this family of proteins may modulate skin conditions ranging from the wound healing process to photocarcinogenesis associated with fibroblast senescence. Additionally, we offer supporting data from experiments examining the relationship between fibroblast senescence and sirtuin levels in an oxidative stress model indicating that senescent dermal fibroblasts exhibit diminished sirtuin levels. Furthermore, we survey the research on the role of sirtuins in specific dermatological disease states that where dermal fibroblast function has been implicated. Finally, we conclude with outlining potential clinical applications of sirtuins in dermatology. In sum, we find that the literature on the involvement of sirtuins in dermal fibroblasts is limited, with research still in its early stages. Nevertheless, intriguing preliminary findings merit additional investigation into the clinical implications of sirtuins in dermatology.
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Affiliation(s)
- Michael M. Gilbert
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Departments of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- *Correspondence: Michael M. Gilbert,
| | | | - Avinash S. Mahajan
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Craig A. Rohan
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Departments of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Dayton Veterans Administration Medical Center, Dayton, OH, United States
| | - Jeffrey B. Travers
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Departments of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Dayton Veterans Administration Medical Center, Dayton, OH, United States
| | - Anita Thyagarajan
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Anita Thyagarajan,
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Porcine placental extract increase the cellular NAD levels in human epidermal keratinocytes. Sci Rep 2022; 12:19040. [PMID: 36352014 PMCID: PMC9646745 DOI: 10.1038/s41598-022-23446-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/31/2022] [Indexed: 11/11/2022] Open
Abstract
Nicotinamide adenine dinucleotide (NAD) is an essential cofactor for numerous enzymes involved in energy metabolism. Because decreasing NAD levels is a common hallmark of the aging process in various tissues and organs, maintaining NAD levels has recently been of interest for the prevention of aging and age-related diseases. Although placental extract (PE) are known to possess several anti-aging effects, the NAD-boosting activity of PE remains unknown. In this study, we found that porcine PE (PPE) significantly increased intracellular NAD levels in normal human epidermal keratinocytes (NHEKs). PPE also attenuated the NAD depletion induced by FK866, an inhibitor of nicotinamide phosphoribosyltransferase (NAMPT). Interestingly, only the fraction containing nicotinamide mononucleotide (NMN), nicotinamide riboside (NR), and nicotinamide (NAM) restored NAD content in NHEKs in the absence of NAMPT activity. These results suggest that PPE increases intracellular NAD by providing NAD precursors such as NMN, NR, and NAM. Finally, we showed that the application of PPE to the stratum corneum of the reconstructed human epidermis significantly ameliorated FK866-induced NAD depletion, suggesting that topical PPE may be helpful for increasing skin NAD levels. This is the first study to report the novel biological activity of PE as an NAD booster in human epidermal cells.
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Ma X, Ru Y, Luo Y, Kuai L, Chen QL, Bai Y, Liu YQ, Chen J, Luo Y, Song JK, Zhou M, Li B. Post-Translational Modifications in Atopic Dermatitis: Current Research and Clinical Relevance. Front Cell Dev Biol 2022; 10:942838. [PMID: 35874824 PMCID: PMC9301047 DOI: 10.3389/fcell.2022.942838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/16/2022] [Indexed: 11/20/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic and relapsing cutaneous disorder characterized by compromised immune system, excessive inflammation, and skin barrier disruption. Post-translational modifications (PTMs) are covalent and enzymatic modifications of proteins after their translation, which have been reported to play roles in inflammatory and allergic diseases. However, less attention has been paid to the effect of PTMs on AD. This review summarized the knowledge of six major classes (including phosphorylation, acetylation, ubiquitination, SUMOylation, glycosylation, o-glycosylation, and glycation) of PTMs in AD pathogenesis and discussed the opportunities for disease management.
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Affiliation(s)
- Xin Ma
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Yi Ru
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Ying Luo
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Le Kuai
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Qi-Long Chen
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Yun Bai
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Ye-Qiang Liu
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Jia Chen
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Yue Luo
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Jian-Kun Song
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
| | - Mi Zhou
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Mi Zhou, ; Bin Li,
| | - Bin Li
- Shanghai Skin Disease Hospital of Tongji University, Shanghai, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Mi Zhou, ; Bin Li,
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11
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Szychowski KA, Skóra B, Wójtowicz AK. Involvement of sirtuins (Sirt1 and Sirt3) and aryl hydrocarbon receptor (AhR) in the effects of triclosan (TCS) on production of neurosteroids in primary mouse cortical neurons cultures. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 184:105131. [PMID: 35715069 DOI: 10.1016/j.pestbp.2022.105131] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Epidemiological studies have shown the presence of triclosan (TCS) in the brain due to its widespread use as an antibacterial ingredient. One of the confirmed mechanisms of its action is the interaction with the aryl hydrocarbon receptor (AhR). In nerve cells, sirtuins (Sirt1 and Sirt3) act as cellular sensors detecting energy availability and modulate metabolic processes. Moreover, it has been found that Sirt1 inhibits the activation of estrogen receptors, regulates the androgen receptor, and may interact with the AhR receptor. It is also known that Sirt3 stimulates the production of estradiol (E2) via the estradiol receptor β (Erβ). Therefore, the aim of the present study was to evaluate the effect of TCS alone or in combination with synthetic flavonoids on the production of neurosteroids such as progesterone (P4), testosterone (T), and E2 in primary neural cortical neurons in vitro. The contribution of Sirt1 and Sirt3 as well as AhR to these TCS-induced effects was investigated as well. The results of the experiments showed that both short and long exposure of neurons to TCS increased the expression of the Sirt1 and Sirt3 proteins in response to AhR stimulation. After an initial increase in the production of all tested neurosteroids, TCS acting for a longer time lowered their levels in the cells. This suggests that TCS activating AhR as well as Sirt1 and Sirt3 in short time intervals stimulates the levels of P4, T, and E2 in neurons, and then the amount of neurosteroids decreases despite the activation of AhR and the increase in the expression of the Sirt1 and Sirt3 proteins. The use of both the AhR agonist and antagonist prevented changes in the expression of Sirt1, Sirt3, and AhR and the production of P4, T, and E2, which confirmed that this receptor is a key in the mechanism of the TCS action.
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Affiliation(s)
- Konrad A Szychowski
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland.
| | - Bartosz Skóra
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
| | - Anna K Wójtowicz
- Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Sciences, University of Agriculture, Adama Mickiewicza 24/28, 30-059 Kraków, Poland
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12
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Moosbrugger-Martinz V, Leprince C, Méchin MC, Simon M, Blunder S, Gruber R, Dubrac S. Revisiting the Roles of Filaggrin in Atopic Dermatitis. Int J Mol Sci 2022; 23:5318. [PMID: 35628125 PMCID: PMC9140947 DOI: 10.3390/ijms23105318] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 12/31/2022] Open
Abstract
The discovery in 2006 that loss-of-function mutations in the filaggrin gene (FLG) cause ichthyosis vulgaris and can predispose to atopic dermatitis (AD) galvanized the dermatology research community and shed new light on a skin protein that was first identified in 1981. However, although outstanding work has uncovered several key functions of filaggrin in epidermal homeostasis, a comprehensive understanding of how filaggrin deficiency contributes to AD is still incomplete, including details of the upstream factors that lead to the reduced amounts of filaggrin, regardless of genotype. In this review, we re-evaluate data focusing on the roles of filaggrin in the epidermis, as well as in AD. Filaggrin is important for alignment of keratin intermediate filaments, control of keratinocyte shape, and maintenance of epidermal texture via production of water-retaining molecules. Moreover, filaggrin deficiency leads to cellular abnormalities in keratinocytes and induces subtle epidermal barrier impairment that is sufficient enough to facilitate the ingress of certain exogenous molecules into the epidermis. However, although FLG null mutations regulate skin moisture in non-lesional AD skin, filaggrin deficiency per se does not lead to the neutralization of skin surface pH or to excessive transepidermal water loss in atopic skin. Separating facts from chaff regarding the functions of filaggrin in the epidermis is necessary for the design efficacious therapies to treat dry and atopic skin.
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Affiliation(s)
- Verena Moosbrugger-Martinz
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (V.M.-M.); (S.B.); (R.G.)
| | - Corinne Leprince
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse University, CNRS UMR5051, Inserm UMR1291, UPS, 31059 Toulouse, France; (C.L.); (M.-C.M.); (M.S.)
| | - Marie-Claire Méchin
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse University, CNRS UMR5051, Inserm UMR1291, UPS, 31059 Toulouse, France; (C.L.); (M.-C.M.); (M.S.)
| | - Michel Simon
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse University, CNRS UMR5051, Inserm UMR1291, UPS, 31059 Toulouse, France; (C.L.); (M.-C.M.); (M.S.)
| | - Stefan Blunder
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (V.M.-M.); (S.B.); (R.G.)
| | - Robert Gruber
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (V.M.-M.); (S.B.); (R.G.)
| | - Sandrine Dubrac
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (V.M.-M.); (S.B.); (R.G.)
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13
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Lee CH, Yang H, Park JHY, Kim JE, Lee KW. Piceatannol, a metabolite of resveratrol, attenuates atopic dermatitis by targeting Janus kinase 1. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:153981. [PMID: 35235887 DOI: 10.1016/j.phymed.2022.153981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/13/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Piceatannol is a resveratrol metabolite commonly found in red wine, grapes. Several studies have investigated the immune-modulating effects of piceatannol on processes related to allergic reactions. However, the relationship between piceatannol and atopic dermatitis (AD) has not yet been reported. This study sought to investigate the effects of piceatannol in animal and cell line models. METHODS AD-like symptoms and skin lesions were triggered by repeated topical treatment of Dermatophagoides farinae extract (DFE) on the skin of NC/Nga mice. The molecular mechanism of piceatannol was studied in the TNFα/IFNγ-induced HaCaT cell line. RESULTS Piceatannol attenuated DFE-induced AD-like symptoms, as shown by skin thickness, dermatitis score, scratching time, and skin water loss. Histopathological analysis showed that piceatannol suppressed DFE-induced immune cell infiltration into the skin. These results occurred concomitantly with the downregulation of inflammatory markers, including serum and skin TARC and MDC. Piceatannol decreased phosphorylation of JAK-STAT protein in the TNFα/IFNγ-induced HaCaT cell line. A molecular docking study showed that piceatannol strongly interacts with JAK1, suggesting a possible mode of action. CONCLUSION The study results showed that piceatannol, a metabolite of resveratrol, attenuates atopic dermatitis and provide important implication of development of piceatannol as functional ingredients or therapeutic agents.
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Affiliation(s)
- Chang Hyung Lee
- Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea; Bio-MAX Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hee Yang
- Bio-MAX Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jung Han Yoon Park
- Bio-MAX Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jong-Eun Kim
- Department of Food Science and Technology, Korea National University of Transportation, Jeungpyeong 27909, Republic of Korea.
| | - Ki Won Lee
- Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea; Bio-MAX Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Seoul National University, Suwon 16229, Republic of Korea.
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14
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Dębińska A. New Treatments for Atopic Dermatitis Targeting Skin Barrier Repair via the Regulation of FLG Expression. J Clin Med 2021; 10:jcm10112506. [PMID: 34198894 PMCID: PMC8200961 DOI: 10.3390/jcm10112506] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/16/2022] Open
Abstract
Atopic dermatitis (AD) is one of the most common chronic, inflammatory skin disorders with a complex etiology and a broad spectrum of clinical phenotypes. Despite its high prevalence and effect on the quality of life, safe and effective systemic therapies approved for long-term management of AD are limited. A better understanding of the pathogenesis of atopic dermatitis in recent years has contributed to the development of new therapeutic approaches that target specific pathophysiological pathways. Skin barrier dysfunction and immunological abnormalities are critical in the pathogenesis of AD. Recently, the importance of the downregulation of epidermal differentiation complex (EDC) molecules caused by external and internal stimuli has been extensively emphasized. The purpose of this review is to discuss the innovations in the therapy of atopic dermatitis, including biologics, small molecule therapies, and other drugs by highlighting regulatory mechanisms of skin barrier-related molecules, such as filaggrin (FLG) as a crucial pathway implicated in AD pathogenesis.
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Affiliation(s)
- Anna Dębińska
- 1st Department and Clinic of Paediatrics, Allergology and Cardiology, Wroclaw Medical University, Chałubińskiego 2a, 50-368 Wrocław, Poland
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15
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Lau HX, El-Heis S, Yap QV, Chan YH, Tan CPT, Karnani N, Tan KML, Tham EH, Goh AEN, Teoh OH, Tan KH, Eriksson JG, Chong YS, Chong MFF, Van Bever H, Lee BW, Shek LP, Godfrey KM, Loo EXL. Role of maternal tryptophan metabolism in allergic diseases in the offspring. Clin Exp Allergy 2021; 51:1346-1360. [PMID: 34033173 DOI: 10.1111/cea.13953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Nicotinamide (vitamin B3) is a metabolite of tryptophan and dietary precursor of enzymes involved in many regulatory processes, which may influence fetal immune development. OBJECTIVE We examined whether maternal plasma concentrations of nicotinamide, tryptophan or nine related tryptophan metabolites during pregnancy were associated with the risk of development of infant eczema, wheeze, rhinitis or allergic sensitization. METHODS In the Growing Up in Singapore Towards Healthy Outcomes (GUSTO) study, we analysed the associations between maternal plasma levels of nicotinamide, tryptophan and tryptophan metabolites at 26-28 weeks of gestation and allergic outcomes collected through interviewer-administered questionnaires at multiple time-points and skin prick testing to egg, milk, peanut and mites at age 18 months. Multivariate analysis was undertaken adjusting for all metabolites measured and separately adjusting for relevant demographic and environmental exposures. Analyses were also adjusted for multiple comparisons using the false discovery method. RESULTS Tryptophan metabolites were evaluated in 976/1247 (78%) women enrolled in GUSTO. In multivariate analysis including all metabolites, maternal plasma 3-hydrokynurenine was associated with increased allergic sensitization at 18 months (AdjRR 2.6, 95% CI 1.3-5.2 for highest quartile) but the association with nicotinamide was not significant (AdjRR 1.8, 95% CI 0.9-3.6). In analysis adjusting for other exposures, both 3-hydrokynurenine and nicotinamide were associated with increased allergic sensitization (AdjRR 2.0, 95% CI 1.1-3.6 for both metabolites). High maternal plasma nicotinamide was associated with increased infant eczema diagnosis by 6 and 12 months, which was not significant when adjusting for all metabolites measured, but was significant when adjusting for relevant environmental and demographic exposures. Other metabolites measured were not associated with allergic sensitization or eczema, and maternal tryptophan metabolites were not associated with offspring rhinitis and wheeze. CONCLUSIONS AND CLINICAL RELEVANCE Maternal tryptophan metabolism during pregnancy may influence the development of allergic sensitization and eczema in infants.
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Affiliation(s)
- Hui Xing Lau
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Sarah El-Heis
- Medical Research Council Lifecourse Epidemiology Unit, Southampton, UK
| | - Qai Ven Yap
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | - Cheryl Pei Ting Tan
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Karen Mei Ling Tan
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore City, Singapore
| | - Anne Eng Neo Goh
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital (KKWCH), Singapore City, Singapore
| | - Oon Hoe Teoh
- Respiratory Service, Department of Paediatrics, KK Women's and Children's Hospital (KKWCH), Singapore City, Singapore
| | - Kok Hian Tan
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital (KKWCH), Singapore City, Singapore
| | - Johan Gunnar Eriksson
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Department of Obstetrics & Gynaecology and Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore City, Singapore.,Folkhälsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Department of Obstetrics & Gynaecology and Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore City, Singapore
| | - Mary Foong-Fong Chong
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore, Singapore City, Singapore
| | - Hugo Van Bever
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore City, Singapore
| | - Bee Wah Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | - Lynette P Shek
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | - Keith M Godfrey
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Evelyn Xiu Ling Loo
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
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16
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Wang X, Lu Y, Tuo Z, Zhou H, Zhang Y, Cao Z, Peng L, Yu D, Bi L. Role of SIRT1/AMPK signaling in the proliferation, migration and invasion of renal cell carcinoma cells. Oncol Rep 2021; 45:109. [PMID: 33907836 PMCID: PMC8082341 DOI: 10.3892/or.2021.8060] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 03/05/2021] [Indexed: 12/27/2022] Open
Abstract
Renal cell carcinoma (RCC) is a lethal urologic tumor commonly seen in men that best responds to partial nephrectomy. An enhanced understanding of the molecular pathogenesis of RCC can broaden treatment options and tumor prevention strategies. Sirtuin 1 (SIRT1) is a NAD+-dependent deacetylase that regulates several bioactive substances, and the present study aimed to identify the role of SIRT1/AMP-activated protein kinase (AMPK) signaling in RCC progression. SIRT1 expression was detected in 100 patients with RCC using tissue microarray immunohistochemistry. SIRT1-knockdown and overexpression were performed via RNA interference and plasmid transfection. Inhibition of AMPK was used for the phenotypic rescue assays to verify whether AMPK was a downstream target of SIRT1. Reverse transcription-quantitative PCR was performed to verify transfection efficiency. Transwell, MTT and flow cytometry apoptosis assays were performed to evaluate the migration, invasion, proliferation and early apoptosis level of RCC cells. SIRT1 and AMPK protein expression in human RCC tissues and cell lines (786-O and ACHN) was detected using western blotting and immunofluorescence staining. The current results, combined with data from The Cancer Genome Atlas database, revealed that SIRT1 expression in RCC tissues was downregulated compared with in adjacent normal tissues. Additionally, high SIRT1 expression was associated with an improved prognosis in patients with RCC. Overexpression of SIRT1 inhibited the proliferation, migration and invasion of RCC cell lines and induced apoptosis, while inhibition of SIRT1 expression had the opposite effects. Further experiments indicated that SIRT1 may serve an anticancer role by upregulating the expression levels of downstream AMPK, thus revealing a potential therapeutic target for RCC.
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Affiliation(s)
- Xin Wang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Youlu Lu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Zhouting Tuo
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Huan Zhou
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Ying Zhang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Zhangjun Cao
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Longfei Peng
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Dexin Yu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Liangkuan Bi
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
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17
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Lee YS, Ryu HW, Yang WK, Park MH, Park YC, Kim DY, Kwon HJ, Kim SY, Oh SR, Kim SH. A combination of Olea europaea leaf extract and Spirodela polyrhiza extract alleviates atopic dermatitis by modulating immune balance and skin barrier function in a 1-chloro-2,4-dinitrobenzene-induced murine model. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 82:153407. [PMID: 33571899 DOI: 10.1016/j.phymed.2020.153407] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/19/2020] [Accepted: 11/03/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Atopic dermatitis is a chronic inflammatory skin disease in humans. Although Olea europaea leaf extract (OLE) and Spirodela polyrhiza extract (SPE) have been used to protect against skin damage, the effects of their combined administration on atopic dermatitis have yet to studied. PURPOSE In this study, we evaluated the potential therapeutic effects of an OLE and SPE combination on the progression of atopic dermatitis and the possible mechanisms underlying these effects in 1-chloro-2,4-dinitrobenzene (DNCB)-treated NC/Nga mice. METHODS Atopic dermatitis was induced by topical application of 0.2% w/v DNCB prepared in an olive oil:acetone solution (1:3), and thereafter OLE, SPE and OLE + SPE were administered orally for 5 weeks. We determined atopic dermatitis symptoms, serum IgE levels, and levels of cytokine- and gene expression in the dorsal skin and splenocytes, and performed histological and immune cell subtype analyses. The expression of skin barrier-related proteins (filaggrin, sirtuin 1, and claudin 1) was also evaluated. RESULTS The OLE + SPE combination significantly ameliorated atopic dermatitis symptoms, including dermatitis scores, and reduced epidermal thickness and infiltration of different inflammatory cells in mice with DNCB-induced atopic dermatitis. It also significantly reduced the number of CD4+, CD8+, and CD4+/CD69+ T cells; immunoglobulin E-producing B cells (CD23+/B220+) in the axillary lymph nodes; CD3+ T-cell eosinophils (chemokine-chemokine receptor 3+/CD11b+) in the skin; and CD3+ T cells, immunoglobulin E-producing B cells (CD23+/B220+), and eosinophils in peripheral blood mononuclear cells. Additionally, the experimental combination lowered levels of serum immunoglobulin E and histamine, as well as Th2-mediated cytokines, and interleukin-4, -5, and -13, whereas it increased the levels of Th1-mediated cytokine interferon-γ in splenocytes. Furthermore, the preparation significantly restored expression of the skin barrier-related proteins filaggrin, sirtuin 1, and claudin 1, and also reduced the expression of the inflammatory cytokine interleukin-6 and chemokine-chemokine receptor 3, as well as the pruritus-related cytokine interleukin-31 and interleukin-31 receptor, in atopic dermatitis skin lesions. CONCLUSION Taken together, our findings indicate that administration of a combination of OLE and SPE can alleviate atopic dermatitis symptoms by regulating immune balance and skin barrier function and may be an effective therapeutic option for the treatment of atopic dermatitis.
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Affiliation(s)
- Young-Sil Lee
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Won-Kyung Yang
- Division of Respiratory Systems, Department of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Mi Hyeon Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Yang-Chun Park
- Division of Respiratory Systems, Department of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Hyuk Joon Kwon
- National Institute of Biological Resources, Environmental Research Complex, Gyoungseo-dong, Seo-gu, Incheon 22689, Republic of Korea
| | - Soo-Young Kim
- National Institute of Biological Resources, Environmental Research Complex, Gyoungseo-dong, Seo-gu, Incheon 22689, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do 28116, Republic of Korea.
| | - Seung-Hyung Kim
- Institute of Traditional Medicine & Bioscience, Daejeon University, Daejeon 34520, Republic of Korea.
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18
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Abstract
Skin barrier dysfunction caused by endogenous or exogenous factors can lead to various disorders such as xerosis cutis, ichthyoses, and atopic dermatitis. Filaggrin is a pivotal structural protein of the stratum corneum (SC) and provides natural moisturizing factors that play a role in skin barrier functions. Filaggrin aggregates keratin filaments, resulting in the formation of a keratin network, which binds cornified envelopes and collapse keratinocytes to flattened corneocytes. This complex network contributes to the physical strength of the skin. Filaggrin is degraded by caspase-14, calpain 1, and bleomycin hydrolases into amino acids and amino acid metabolites such as trans-urocanic acid and pyrrolidone carboxylic acid, which are pivotal natural moisturizing factors in the SC. Accordingly, filaggrin is important for the pathophysiology of skin barrier disorders, and its deficiency or dysfunction leads to a variety of skin disorders. Here, the roles and biology of filaggrin, related skin diseases, and a therapeutic strategy targeting filaggrin are reviewed. In addition, several drug candidates of different mode of actions targeting filaggrin, along with their clinical efficacy, are discussed.
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19
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Sawada Y, Gallo RL. Role of Epigenetics in the Regulation of Immune Functions of the Skin. J Invest Dermatol 2020; 141:1157-1166. [PMID: 33256976 DOI: 10.1016/j.jid.2020.10.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/16/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
This review is intended to illuminate the emerging understanding of epigenetic modifications that regulate both adaptive and innate immunity in the skin. Host defense of the epidermis and dermis involves the interplay of many cell types to enable homeostasis; tolerance to the external environment; and appropriate response to transient microbial, chemical, and physical insults. To understand this process, the study of cutaneous immunology has focused on immune responses that reflect both adaptive learned and genetically programmed innate defense systems. However, recent advances have begun to reveal that epigenetic modifications of chromatin structure also have a major influence on the skin immune system. This deeper understanding of how enzymatic changes in chromatin structure can modify the skin immune system and may explain how environmental exposures during life, and the microbiome, lead to both short-term and long-term changes in cutaneous allergic and other inflammatory processes. Understanding the mechanisms responsible for alterations in gene and chromatin structure within skin immunocytes could provide key insights into the pathogenesis of inflammatory skin diseases that have thus far evaded understanding by dermatologists.
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Affiliation(s)
- Yu Sawada
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, San Diego, California, USA.
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20
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Siraitia grosvenorii Residual Extract Attenuates Atopic Dermatitis by Regulating Immune Dysfunction and Skin Barrier Abnormality. Nutrients 2020; 12:nu12123638. [PMID: 33256152 PMCID: PMC7759927 DOI: 10.3390/nu12123638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 01/21/2023] Open
Abstract
Atopic dermatitis is a persistent inflammatory skin disorder. Siraitia grosvenorii fruits (monk fruit or nahangwa in Korean, NHG) are used as a natural sweetener and as a traditional medicine for the treatment of asthma and bronchitis. We evaluated the activity of S. grosvenorii residual extract (NHGR) on allergic inflammation of atopic dermatitis in a Dermatophagoides farinae mite antigen extract (DfE)-treated NC/Nga murine model and in vitro. Oral administration of NHGR significantly reduced epidermal hyperplasia and inflammatory cell infiltration in the skin lesions of DfE-induced atopic dermatitis, as well as the dermatitis severity score. NHGR reduced serum immunoglobulin E levels. Splenic concentrations of IFN-γ, interleukin (IL)-4, IL-5, and IL-13 were reduced by NHGR administration. Immunohistofluorescence staining showed that NHGR administration increased the protein levels of claudin-1, SIRT1, and filaggrin in atopic dermatitis skin lesions. In addition, NHGR inhibited the phosphorylation of mitogen-activated protein kinases and decreased filaggrin and chemokine protein expression in TNF-α/IFN-γ-induced human keratinocytes. Moreover, NHGR also inhibited histamine in mast cells. The quantitative analysis of NHGR revealed the presence of grosvenorine, kaempferitrin, and mogrosides. These results demonstrate that NHGR may be an efficient therapeutic agent for the treatment of atopic dermatitis.
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Li Q, Bai D, Qin L, Shao M, Zhang S, Yan C, Yu G, Hao J. Protective effect of d-tetramannuronic acid tetrasodium salt on UVA-induced photo-aging in HaCaT cells. Biomed Pharmacother 2020; 126:110094. [PMID: 32200257 DOI: 10.1016/j.biopha.2020.110094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 01/01/2023] Open
Abstract
UVA radiation from the sun is the main external stimulus in the pathogenesis of skin photo-aging. This process is associated with cellular oxidative stress. Here we aim at showing the protective effect of d-Tetramannuronic Acid Tetrasodium Salt (M4), a natural product, against UVA (30J/cm2) irradiation-induced oxidative stress and photo-aging in HaCaT cells, and to reveal the molecular mechanism underlying the protective efficacy. M4 pretreatment significantly increased HaCaT cell viability and MMP, suppressing UVA-induced ROS generation. Moreover, M4 treatment prevented the UVA-induced photo-aging of HaCaT cells (the reduction of cell viability, mitochondria dysfunction, and SIRT1/pGC-1α deregulation). Notably, the anti-photo-aging potential of M4 was directly associated with the increased expression of MMP and SIRT1, which was followed by the up-regulation of pGC-1α, D-LOOP, and Mt-TFA, and the transcriptional activation of NRF1/NRF2. Therefore, M4 is useful for the protection of skin cells from UVA-induced photo-aging.
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Affiliation(s)
- Qiong Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Donghui Bai
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Ling Qin
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Meng Shao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Shuai Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Chengxiu Yan
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Jiejie Hao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China; Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
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Li Q, Bai D, Qin L, Shao M, Liu X, Zhang S, Yan C, Yu G, Hao J. Protective Effect of L-Hexaguluroic Acid Hexasodium Salt on UVA-Induced Photo-Aging in HaCaT Cells. Int J Mol Sci 2020; 21:E1201. [PMID: 32054061 PMCID: PMC7072793 DOI: 10.3390/ijms21041201] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 12/11/2022] Open
Abstract
This study aimed to show the α-L-Hexaguluroic acid hexasodium salt (G6) protective effect against UVA-induced photoaging of human keratinocyte cells. We found that G6 localized to the mitochondria and improved mitochondrial functions. G6 increased respiratory chain complex activities, which led to increased cellular ATP content and NAD+/NADH ratio. Thus, G6 alleviated the oxidative stress state in UVA-irradiated cells. Moreover, G6 can regulate the SIRT1/pGC-1α pathway, which enhanced the cells' viability and mitochondria energy metabolism. Notably, the anti-photoaging potential of G6 was directly associated with the increased level of MMP and SIRT1, which was followed by the upregulation of pGC-1α, D-LOOP, and Mt-TFA, and with the transcriptional activation of NRF1/NRF2. Taking all of the results together, we conclude that G6 could protect HaCaT cells from UVA-induced photo-aging via the regulation of mitochondria energy metabolism and its downstream signaling pathways.
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Affiliation(s)
- Qiong Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Donghui Bai
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Ling Qin
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
| | - Meng Shao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Xi Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Shuai Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Chengxiu Yan
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Jiejie Hao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Q.L.); (D.B.); (L.Q.); (M.S.); (X.L.); (S.Z.); (C.Y.)
- Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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Brinkmann V, Ale-Agha N, Haendeler J, Ventura N. The Aryl Hydrocarbon Receptor (AhR) in the Aging Process: Another Puzzling Role for This Highly Conserved Transcription Factor. Front Physiol 2020; 10:1561. [PMID: 32009975 PMCID: PMC6971224 DOI: 10.3389/fphys.2019.01561] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/11/2019] [Indexed: 12/26/2022] Open
Abstract
Aging is the most important risk factor for the development of major life-threatening diseases such as cardiovascular disorders, cancer, and neurodegenerative disorders. The aging process is characterized by the accumulation of damage to intracellular macromolecules and it is concurrently shaped by genetic, environmental and nutritional factors. These factors influence the functionality of mitochondria, which play a central role in the aging process. Mitochondrial dysfunction is one of the hallmarks of aging and is associated with increased fluxes of ROS leading to damage of mitochondrial components, impaired metabolism of fatty acids, dysregulated glucose metabolism, and damage of adjacent organelles. Interestingly, many of the environmental (e.g., pollutants and other toxicants) and nutritional (e.g., flavonoids, carotenoids) factors influencing aging and mitochondrial function also directly or indirectly affect the activity of a highly conserved transcription factor, the Aryl hydrocarbon Receptor (AhR). Therefore, it is not surprising that many studies have already indicated a role of this versatile transcription factor in the aging process. We also recently found that the AhR promotes aging phenotypes across species. In this manuscript, we systematically review the existing literature on the contradictory studies indicating either pro- or anti-aging effects of the AhR and try to reconcile the seemingly conflicting data considering a possible dependency on the animal model, tissue, as well as level of AhR expression and activation. Moreover, given the crucial role of mitochondria in the aging process, we summarize the growing body of evidence pointing toward the influence of AhR on mitochondria, which can be of potential relevance for aging.
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Affiliation(s)
- Vanessa Brinkmann
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Niloofar Ale-Agha
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Judith Haendeler
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Natascia Ventura
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
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Lee YS, Yang WK, Jo EH, Ho Shin S, Lee YC, Park MC, Kim SH. NCM 1921, a Mixture of Several Ingredients, Including Fatty Acids and Choline, Attenuates Atopic Dermatitis in 1-Chloro-2,4-Dinitrobenzene-Treated NC/Nga Mice. Nutrients 2020; 12:nu12010165. [PMID: 31936050 PMCID: PMC7019988 DOI: 10.3390/nu12010165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/28/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease in humans. In this study, we evaluated the effects of a mixture (NCM 1921) of omega-3 butter, omega-3 beef tallow oil, omega-3 lard oil, caprylic acid, lauric acid, choline, and Fe on AD in 1-chloro-2,4-dinitrobenzene (DNCB)-treated NC/Nga mice. NCM 1921 significantly ameliorated the macroscopic and microscopic signs and reduced skin thickness and mast cell incorporation in the skin lesions of mice with DNCB-induced AD. Furthermore, it reduced serum immunoglobulin E levels; reduced the number of IgE-producing B cells, peripheral blood mononuclear cells, white blood cells, and differential white blood cells; and increased the number of lymphocytes. NCM 1921 normalized the total cell number in dorsal skin tissue, the axillary lymph node, and spleen following DNCB exposure and reduced the number of CD23+/B220+ cells in the axillary lymph node and CD3+ cells in dorsal skin tissue. Moreover, it reduced the levels of interleukin (IL)-4 and IL-13 but increased the levels of interferon-γ in anti-CD3–stimulated splenocytes. Immunohistofluorescence staining showed that NCM 1921 treatment significantly increased claudin1, filaggrin, and Sirt1 protein expressions in AD skin lesions. These results suggest that NCM 1921 could be a valuable remedy for the treatment of AD.
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Affiliation(s)
- Young-Sil Lee
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea;
| | - Won-Kyung Yang
- Institute of Traditional Medicine & Bioscience, Daejeon University, Daejeon 34520, Korea;
| | - Eun-Hee Jo
- Department of Acupuncture and Moxibustion, Won-Kwang University Korean Medicine Hospital, Deokjin-gu, Jeonju-si, Jeollabuk-do 54538, Korea;
| | - Seung Ho Shin
- Sunseo Omega3, 53 Judeognong-gong-gil, Chungju-si, Chungcheongbuk-do 27462, Korea;
| | - Young-Cheol Lee
- Department of Herbology, College of Korean Medicine, Sangji University, Wonju 26339, Korea;
| | - Min-Cheol Park
- Department of Korean Medicine Ophthalmology and Otolaryngology and Dermatology, Won-Kwang University Korean Medicine Hospital 895 Muwang-ro, Iksan-si, Jeollabuk-do 54538, Korea
- Correspondence: (M.-C.P.); (S.-H.K.); Tel.: +82-63-859-1114 (M.-C.P.); +82-42-280-2642 (S.-H.K.); Fax: +82-63-841-0033 (M.-C.P.); +82-42-274-2600 (S.-H.K.)
| | - Seung-Hyung Kim
- Institute of Traditional Medicine & Bioscience, Daejeon University, Daejeon 34520, Korea;
- Correspondence: (M.-C.P.); (S.-H.K.); Tel.: +82-63-859-1114 (M.-C.P.); +82-42-280-2642 (S.-H.K.); Fax: +82-63-841-0033 (M.-C.P.); +82-42-274-2600 (S.-H.K.)
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25
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Role of Nicotinamide in Genomic Stability and Skin Cancer Chemoprevention. Int J Mol Sci 2019; 20:ijms20235946. [PMID: 31779194 PMCID: PMC6929077 DOI: 10.3390/ijms20235946] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/16/2019] [Accepted: 11/23/2019] [Indexed: 12/16/2022] Open
Abstract
Nicotinamide (NAM) is an amide form of vitamin B3 and the precursor of nicotinamide adenine dinucleotide (NAD+), an essential co-enzyme of redox reactions for adenosine triphosphate (ATP) production and for other metabolic processes. As NAD+ status is critical in maintaining cellular energy, vitamin B3 deficiency mainly affects tissues that need high cellular energy causing pellagra and skin sun sensitivity. In animal models, NAD+ deficiency leads to UV sensitivity of the skin, impairs DNA damage response, and increases genomic instability and cancer incidence. Furthermore, NAD+ depletion is associated with human skin aging and cancer. NAM prevents the UV-induced ATP depletion boosting cellular energy and enhances DNA repair activity in vitro and in vivo. Moreover, NAM reduces skin cancer incidence and prevents the immune-suppressive effects of UV in mice. Thus, NAM is involved in the maintenance of genomic stability and may have beneficial effects against skin aging changes and tumor development. Clinical studies showed that topical use of NAM reduces cutaneous aging. Furthermore, oral NAM administration reduces the level of UV-mediated immunosuppression and lowers the rate of non-melanoma skin cancers in high-risk patients. Therefore, NAM replenishment strategy may be a promising approach for skin cancer chemoprevention.
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Shin JW, Choi HR, Nam KM, Yang SH, Kim SA, Joe HJ, Hwang YJ, Na JI, Huh CH, Park KC. The Expression of Epidermal Stem Cell Marker and SIRT1 in Atopic Dermatitis: A Discussion of Regenerative Potential. Ann Dermatol 2019; 31:476-478. [PMID: 33911634 PMCID: PMC7992753 DOI: 10.5021/ad.2019.31.4.476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/15/2018] [Accepted: 12/12/2018] [Indexed: 11/08/2022] Open
Affiliation(s)
- Jung-Won Shin
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye-Ryung Choi
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Kyung-Mi Nam
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seung-Hye Yang
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung-Ae Kim
- Department of Dermatology, Keimyung University School of Medicine, Daegu, Korea
| | - Hyun-Jae Joe
- Department of Dermatology, Keimyung University School of Medicine, Daegu, Korea
| | | | - Jung-Im Na
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Chang-Hun Huh
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Kyoung-Chan Park
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea
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Zhao B, Li X, Zhou L, Wang Y, Shang P. SIRT1: a potential tumour biomarker and therapeutic target. J Drug Target 2019; 27:1046-1052. [PMID: 31056963 DOI: 10.1080/1061186x.2019.1605519] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SIRT1, which is highly homologous to yeast silent information regulator 2, has recently garnered tremendous attention because of its various regulatory effects in several pathological conditions. Numerous studies have found that SIRT1 is highly expressed in a broad range of tumours compared with the paracancerous tissue. However, the role of SIRT1 in malignancies has yet to be systematically elucidated, and its use as a promising biomarker or therapeutic target for tumours has not been well-reported. Herein, we focus on the roles of SIRT1 in cancers and summarise the potential use of SIRT1 as a promising tumour biomarker or therapeutic target.
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Affiliation(s)
- Bin Zhao
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen , Shenzhen , China.,School of Life Science, Northwestern Polytechnical University , Xi'an , China.,Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Institute of Special Environmental Biophysics, Northwestern Polytechnical University , Xi'an , China
| | - Xin Li
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen , Shenzhen , China.,School of Life Science, Northwestern Polytechnical University , Xi'an , China.,Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Institute of Special Environmental Biophysics, Northwestern Polytechnical University , Xi'an , China
| | - Liangfu Zhou
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen , Shenzhen , China.,School of Life Science, Northwestern Polytechnical University , Xi'an , China.,Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Institute of Special Environmental Biophysics, Northwestern Polytechnical University , Xi'an , China
| | - Ye Wang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen , Shenzhen , China.,School of Life Science, Northwestern Polytechnical University , Xi'an , China.,Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Institute of Special Environmental Biophysics, Northwestern Polytechnical University , Xi'an , China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen , Shenzhen , China.,Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Institute of Special Environmental Biophysics, Northwestern Polytechnical University , Xi'an , China
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Pang M, Zhu M, Lei X, Xu P, Cheng B. Microbiome Imbalances: An Overlooked Potential Mechanism in Chronic Nonhealing Wounds. INT J LOW EXTR WOUND 2019; 18:31-41. [PMID: 30836811 DOI: 10.1177/1534734619832754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic nonhealing wounds are a severe burden to health care systems worldwide, causing millions of patients to have lengthy hospital stays, high health care costs, periods of unemployment, and reduced quality of life. Moreover, treating chronic nonhealing wounds effectively and reasonably in countries with limited medical resources can be extremely challenging. With many outstanding questions surrounding chronic nonhealing wounds, in this review, we offer changes to the microbiome as a potentially ignored mechanism important in the formation and treatment of chronic wounds. Our analysis helps bring a whole new understanding to wound formation and healing and provides a potential breakthrough in the treatment of chronic nonhealing wounds in the future.
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Affiliation(s)
- Mengru Pang
- The Graduate School of Southern Medical University, Guangzhou, China
- General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Meishu Zhu
- The Graduate School of Southern Medical University, Guangzhou, China
- The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaoxuan Lei
- The Graduate School of Southern Medical University, Guangzhou, China
- General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Pengcheng Xu
- General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Biao Cheng
- The Graduate School of Southern Medical University, Guangzhou, China
- General Hospital of Southern Theater Command, PLA, Guangzhou, China
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, China
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29
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Loliolide Presents Antiapoptosis and Antiscratching Effects in Human Keratinocytes. Int J Mol Sci 2019; 20:ijms20030651. [PMID: 30717391 PMCID: PMC6387290 DOI: 10.3390/ijms20030651] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/23/2019] [Accepted: 01/31/2019] [Indexed: 01/13/2023] Open
Abstract
Loliolide is a monoterpenoid hydroxylactone present in freshwater algae that has anti-inflammatory and antiaging activity; however, its effects on ultraviolet-damaged skin have yet to be elucidated. This study investigated the antiapoptosis and wound-healing effects of loliolide using HaCaT cells (a human keratinocyte cell line). Loliolide inhibited the expression of reactive oxygen species (ROS) induced by ultraviolet radiation as well as wrinkle formation-related matrix metalloproteinase genes and increased the expression of the damage repair-related gene SIRT1. The apoptosis signaling pathway was confirmed by Western blot analysis, which showed that loliolide was able to reduce the expression of caspases 3, 8, and 9, which are related to ROS-induced apoptosis. In addition, Western blotting, reverse-transcription polymerase chain reaction (PCR), and real-time PCR analyses showed that loliolide enhanced the expression of the epidermal growth factor receptor signaling pathway (PI3K, AKT) and migration factors, such as K6, K16, and K17; keratinocyte growth factor; and inflammatory cytokines, such as interleukin (IL)-1, IL-17, and IL-22 expressed during the cellular scratching process, suggesting a putative wound-healing ability. Because of the antiapoptosis and antiscratching effects on skin of both loliolide and loliolide-rich Prasiola japonica ethanol extract, we consider the former to be an important compound used in the cosmeceutical industry.
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Sutter CH, Olesen KM, Bhuju J, Guo Z, Sutter TR. AHR Regulates Metabolic Reprogramming to Promote SIRT1-Dependent Keratinocyte Differentiation. J Invest Dermatol 2018; 139:818-826. [PMID: 30393078 DOI: 10.1016/j.jid.2018.10.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 09/17/2018] [Accepted: 10/01/2018] [Indexed: 11/16/2022]
Abstract
Activation of the transcription factor, AHR, in normal human epidermal keratinocytes increased AHR binding in the gene regions of the glucose transporter, SLC2A1, and the glycolytic enzyme, ENO1. This increased chromatin binding corresponded with AHR-dependent decreases in levels of SLC2A1 and ENO1 mRNA, protein, and activities. Studies of the ENO1 promoter showed activation of the AHR decreases the transcription of ENO1. Glycolysis was lowered by activation of the AHR as measured by decreases in glucose uptake and the production of pyruvate and lactate. Levels of ATP were also decreased. Downregulation of glucose metabolism, either by activation of the AHR, inhibition of glycolysis, inhibition of glucose transport, or inhibition of enolase, increased SIRT1 protein levels in normal human epidermal keratinocytes and the immortalized keratinocyte cell line, N/TERT-1. This increase in SIRT1 was abrogated by the addition of exogenous pyruvate. Moreover, keratinocyte differentiation in response to downregulation of glycolysis, either by activation of the AHR, inhibition of glucose transport, or inhibition of enolase, was dependent on SIRT1. These results indicate that regulation of glycolysis controls keratinocyte differentiation, and that activation of the AHR, by lowering the expression of SLC2A1 and ENO1, can determine this fate.
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Affiliation(s)
- Carrie Hayes Sutter
- Department of Biological Sciences, University of Memphis, Memphis, Tennessee, USA; W. Harry Feinstone Center for Genomic Research, University of Memphis, Memphis, Tennessee, USA
| | - Kristin M Olesen
- Department of Biological Sciences, University of Memphis, Memphis, Tennessee, USA
| | - Jyoti Bhuju
- Department of Biological Sciences, University of Memphis, Memphis, Tennessee, USA
| | - Zibiao Guo
- W. Harry Feinstone Center for Genomic Research, University of Memphis, Memphis, Tennessee, USA
| | - Thomas R Sutter
- Department of Biological Sciences, University of Memphis, Memphis, Tennessee, USA; W. Harry Feinstone Center for Genomic Research, University of Memphis, Memphis, Tennessee, USA.
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31
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Lu YY, Lu CC, Yu WW, Zhang L, Wang QR, Zhang CL, Wu CH. Keloid risk in patients with atopic dermatitis: a nationwide retrospective cohort study in Taiwan. BMJ Open 2018; 8:e022865. [PMID: 30021755 PMCID: PMC6059319 DOI: 10.1136/bmjopen-2018-022865] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE The pathogenesis of keloid is largely unknown. Because keloid and atopic dermatitis have overlapping pathophysiological mechanisms, we aimed to evaluate keloid risk in patients with atopic dermatitis. STUDY DESIGN Population-based retrospective cohort study. SETTING The Taiwan National Health Insurance Research Database was used to analyse data for people who had been diagnosed with atopic dermatitis. PARTICIPANTS We identified 8371 patients with newly diagnosed atopic dermatitis during 1996-2010. An additional 33 484 controls without atopic dermatitis were randomly identified and frequency matched at a one-to-four ratio. PRIMARY AND SECONDARY OUTCOME MEASURE The association between atopic dermatitis and keloid risk was estimated using Cox proportional hazard regression models. RESULTS After adjustment for covariates, the atopic dermatitis patients have a 3.19-fold greater risk of developing keloid compared with the non-atopic dermatitis group (3.19vs1.07 per 1000 person-years, respectively). During the study period, 163 patients with atopic dermatitis and 532 patients without atopic dermatitis developed keloid. Notably, keloid risk increased with severity of atopic dermatitis, particularly in patients with moderate to severe atopic dermatitis. CONCLUSIONS Our results indicate that patients with atopic dermatitis had a higher than normal risk of developing keloid and suggest that atopic dermatitis may be an independent risk factor for keloid.
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Affiliation(s)
- Ying-Yi Lu
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Cosmetic Applications and Management Department, Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Ching Lu
- Department of Orthopedics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wei-Wen Yu
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Li Zhang
- Department of Neurosurgery, Zhangjiagang First People’s Hospital, Zhangjiagang, China
| | - Qing-Rui Wang
- Department of Neurosurgery, Qinghe County Central Hospital, Qinghe, China
| | - Cong-Liang Zhang
- Department of Cardiology, Hebei Quyang Renji Hospital, Quyang, China
| | - Chieh-Hsin Wu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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32
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Chu H, Jiang S, Liu Q, Ma Y, Zhu X, Liang M, Shi X, Ding W, Zhou X, Zou H, Qian F, Shaul PW, Jin L, Wang J. Sirtuin1 Protects against Systemic Sclerosis-related Pulmonary Fibrosis by Decreasing Proinflammatory and Profibrotic Processes. Am J Respir Cell Mol Biol 2018; 58:28-39. [PMID: 28800254 DOI: 10.1165/rcmb.2016-0192oc] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Pulmonary fibrosis is the leading cause of death in systemic sclerosis (SSc). Sirtuin1 (SIRT1) is a deacetylase with known antiinflammatory and antifibrotic activity in the liver, kidney, and skin. The role of SIRT1 in SSc-related pulmonary fibrosis is unknown. In the present work, we determined that the expression of SIRT1 in peripheral blood mononuclear cells of patients with SSc with pulmonary fibrosis is lower than that in patients with SSc without pulmonary fibrosis. In in vivo studies of bleomycin-induced lung fibrosis in mice, SIRT1 activation with resveratrol reduced collagen production when it was administered either prophylactically during the inflammatory stage or after the development of fibrosis. Furthermore, SIRT1 activation or overexpression inhibited tumor necrosis factor-α-induced inflammatory responses in vitro in human fetal lung fibroblasts, depletion of SIRT1 in fibroblasts enhanced inflammation, and these effects were related to changes in the acetylation of NF-κB. In addition, SIRT1 activation or exogenous overexpression inhibited collagen production in vitro, and these manipulations also inhibited fibrosis via inactivation of transforming growth factor-β/mothers against decapentaplegic homolog and mammalian target of rapamycin signaling. Taken together, our results show that a loss of SIRT1 may participate in the pathogenesis of SSc-related pulmonary fibrosis, and that SIRT1 activation is an effective treatment for both the early (inflammatory) and late (fibrotic) stages of pulmonary fibrosis. Thus, SIRT1 may be a promising therapeutic target in the management of SSc-related pulmonary fibrosis.
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Affiliation(s)
- Haiyan Chu
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences
| | - Shuai Jiang
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences
| | - Qingmei Liu
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences.,2 Division of Dermatology, Huashan Hospital
| | - Yanyun Ma
- 3 Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences
| | - Xiaoxia Zhu
- 4 Division of Rheumatology, Shanghai Medical College and Huashan Hospital, and.,5 Institute of Rheumatology, Immunology, and Allergy, Fudan University, Shanghai, China
| | - Minrui Liang
- 4 Division of Rheumatology, Shanghai Medical College and Huashan Hospital, and.,5 Institute of Rheumatology, Immunology, and Allergy, Fudan University, Shanghai, China
| | - Xiangguang Shi
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences
| | - Weifeng Ding
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences.,6 Medical Laboratory Center, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Xiaodong Zhou
- 7 University of Texas-McGovern Medical School, Houston, Texas; and
| | - Hejian Zou
- 4 Division of Rheumatology, Shanghai Medical College and Huashan Hospital, and.,5 Institute of Rheumatology, Immunology, and Allergy, Fudan University, Shanghai, China
| | - Feng Qian
- 3 Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences
| | - Philip W Shaul
- 8 Center for Pulmonary and Vascular Biology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Li Jin
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences
| | - Jiucun Wang
- 1 State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences.,5 Institute of Rheumatology, Immunology, and Allergy, Fudan University, Shanghai, China
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33
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Qiang L, Sample A, Liu H, Wu X, He YY. Epidermal SIRT1 regulates inflammation, cell migration, and wound healing. Sci Rep 2017; 7:14110. [PMID: 29074993 PMCID: PMC5658409 DOI: 10.1038/s41598-017-14371-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 10/09/2017] [Indexed: 01/12/2023] Open
Abstract
Sirtuins (SIRT1-7) are NAD-dependent proteins with the enzymatic activity of deacetylases and ADP ribosyltransferases. SIRT1 is the proto member of the proteins in the mammalian sirtuin family and plays multiple roles in aging and disease. Using mice with epidermis-specific SIRT1 deletion, we show that SIRT1 is required for efficient wound healing. SIRT1 deficiency in the epidermis inhibited the regeneration of both the epidermis and the dermal stroma. SIRT1 loss altered the production of many cytokines, inhibited the recruitment of macrophages, neutrophils, and mast cells, the recruitment and activation of fibroblasts, and angiogenesis in the granulation tissue. In keratinocytes, SIRT1 knockdown inhibited EMT, cell migration, and TGF-β signaling. For the first time, using skin-specific mouse model, we demonstrate that epidermal SIRT1 plays a crucial role in wound repair. These findings are novel in understanding how wound healing is regulated. Our findings provide in vivo and in vitro evidence that SIRT1 in the epidermis regulates cell migration, redox response, inflammation, epidermis re-epithelialization, granulation formation, and proper wound healing in mice.
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Affiliation(s)
- Lei Qiang
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL, 60637, USA. .,State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Ashley Sample
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL, 60637, USA.,Committee on Cancer Biology, University of Chicago, Chicago, IL, 60637, USA
| | - Han Liu
- Ben May Department of Cancer Research, University of Chicago, Chicago, IL, 60637, USA
| | - Xiaoyang Wu
- Committee on Cancer Biology, University of Chicago, Chicago, IL, 60637, USA.,Ben May Department of Cancer Research, University of Chicago, Chicago, IL, 60637, USA
| | - Yu-Ying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL, 60637, USA. .,Committee on Cancer Biology, University of Chicago, Chicago, IL, 60637, USA.
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34
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Sirt1 negatively regulates FcεRI-mediated mast cell activation through AMPK- and PTP1B-dependent processes. Sci Rep 2017; 7:6444. [PMID: 28744004 PMCID: PMC5527079 DOI: 10.1038/s41598-017-06835-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/19/2017] [Indexed: 12/21/2022] Open
Abstract
Sirt1, a key regulator of metabolism and longevity, has recently been implicated in the regulation of allergic reactions, although the underlying mechanism remains unclear. Here we show that Sirt1 negatively regulates FcεRI-stimulated mast cell activation and anaphylaxis through two mutually regulated pathways involving AMP-activated protein kinase (AMPK) and protein tyrosine phosphatase 1B (PTP1B). Mast cell-specific knockout of Sirt1 dampened AMPK-dependent suppression of FcεRI signaling, thereby augmenting mast cell activation both in vitro and in vivo. Sirt1 inhibition of FcεRI signaling also involved an alternative component, PTP1B, which attenuated the inhibitory AMPK pathway and conversely enhanced the stimulatory Syk pathway, uncovering a novel role of this phosphatase. Moreover, a Sirt1 activator resveratrol stimulated the inhibitory AMPK axis, with reciprocal suppression of the stimulatory PTP1B/Syk axis, thus potently inhibiting anaphylaxis. Overall, our results provide a molecular explanation for the beneficial role of Sirt1 in allergy and underscore a potential application of Sirt1 activators as a new class of anti-allergic agents.
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35
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Garcia-Peterson LM, Wilking-Busch MJ, Ndiaye MA, Philippe CGA, Setaluri V, Ahmad N. Sirtuins in Skin and Skin Cancers. Skin Pharmacol Physiol 2017; 30:216-224. [PMID: 28704830 PMCID: PMC5568696 DOI: 10.1159/000477417] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/09/2017] [Indexed: 12/21/2022]
Abstract
The sirtuins are a family of proteins that comprise class III of the histone deacetylases. These NAD+-dependent proteins have been found to be intricately involved in a variety of important and skin-relevant cellular functions and processes, including aging, UV damage response, oxidative stress, and wound repair. In addition, recent research is unraveling the role of sirtuins in a variety of skin diseases, including melanoma and nonmelanoma skin cancers. In this review, we provide a discussion on the potential roles and implications of different sirtuins in skin-specific cellular processes, which may have relevance to skin health and skin diseases. Based on the available literature, the sirtuins appear to be important targets in the management of a variety of skin diseases from cosmetic (e.g., skin aging) to fatal conditions (e.g., melanoma).
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Affiliation(s)
| | | | - Mary Ann Ndiaye
- Department of Dermatology, University of Wisconsin, Madison, Wisconsin, USA
| | | | - Vijayasaradhi Setaluri
- Department of Dermatology, University of Wisconsin, Madison, Wisconsin, USA
- William S. Middleton VA Medical Center, Madison, Wisconsin, USA
| | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, Wisconsin, USA
- William S. Middleton VA Medical Center, Madison, Wisconsin, USA
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36
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Nomura T, Kabashima K. Advances in atopic dermatitis in 2015. J Allergy Clin Immunol 2017; 138:1548-1555. [PMID: 27931536 DOI: 10.1016/j.jaci.2016.10.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/31/2016] [Accepted: 10/12/2016] [Indexed: 12/15/2022]
Abstract
This review aims to highlight recently published articles on atopic dermatitis (AD). Updated are the insights into epidemiology, pathology, diagnostics, and therapy. Epidemiologic studies have revealed a positive correlation between AD and systemic conditions, such as rheumatoid arthritis, inflammatory bowel disease, and neonatal adiposity. Pathologic findings highlight the involvement of novel barrier factors (desmoplakin and claudin), novel immune cell subsets (pathogenic effector TH2 cells and group 2 innate lymphoid cells), and differential skewing of helper T cells (eg, TH17 dominance in Asians with AD). As diagnostics, noninvasive examinations of the transepidermal water loss of neonates, the density of epidermal Staphylococcus species, and the gut flora might prognosticate the onset of AD. As for therapy, various methods are proposed, including conventional (petrolatum and UV) and molecule-oriented regimens targeting Janus kinase, signal transducer and activator of transcription 3, extracellular signal-regulated kinase, sirtuin 1, or aryl hydrocarbon receptor.
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Affiliation(s)
- Takashi Nomura
- Department of Dermatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Experimental Therapeutics, Institute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
| | - Kenji Kabashima
- Department of Dermatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Singapore Immunology Network (SIgN) and Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; PRESTO, Japan Science and Technology Agency, Saitama, Japan
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37
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Jin T, Park KY, Seo SJ. Adiponectin Upregulates Filaggrin Expression via SIRT1-Mediated Signaling in Human Normal Keratinocytes. Ann Dermatol 2017; 29:407-413. [PMID: 28761287 PMCID: PMC5500704 DOI: 10.5021/ad.2017.29.4.407] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/17/2016] [Accepted: 08/31/2016] [Indexed: 01/08/2023] Open
Abstract
Background Filaggrin (FLG) is the major component of the epidermal granular layer and binds to and condenses the keratin cytoskeleton. FLG thus contributes to cell compaction and serves as a natural moisturizing factor by promoting unfolding and degradation into hygroscopic amino acids. Loss or downregulation of FLG has been shown to result in a weak stratum corneum, which causes water loss and increases the possibility of skin barrier-related seizure. Adiponectin (Acrp30) contributes to the functional recovery of somatic cells, including human normal epidermal keratinocytes (NHEKs). Objective To investigate the effect of Acrp30 in FLG expression and identifying its signal transduction mechanism. Methods Normal human keratinocytes were treated with Acrp30 and the levels of FLG were examined. Silent mating type information regulation 2 homolog (SIRT)-targeting siRNA and aryl hydrocarbon receptor nuclear translocator (ARNT)-targeting siRNA were used to identify the role of various signal transduction pathway components. Results Acrp30 upregulated SIRT1 and ARNT expression in NHEKs, resulting in increased FLG expression. Treatment with both SIRT1-targeting siRNA and ARNT-targeting siRNA blocked Acrp30 stimulation and silenced FLG expression. Conclusion Adiponectin upregulates FLG expression through a SIRT1-mediated pathway. Our results suggest that Acrp30 is a promising agent for skin barrier permeability improvement.
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Affiliation(s)
- Taewon Jin
- Department of Dermatology, Chung-Ang University Hospital, Seoul, Korea
| | - Kui Young Park
- Department of Dermatology, Chung-Ang University Hospital, Seoul, Korea
| | - Seong Jun Seo
- Department of Dermatology, Chung-Ang University Hospital, Seoul, Korea
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38
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Chhabra G, Ndiaye MA, Garcia-Peterson LM, Ahmad N. Melanoma Chemoprevention: Current Status and Future Prospects. Photochem Photobiol 2017; 93:975-989. [PMID: 28295364 DOI: 10.1111/php.12749] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 02/02/2017] [Indexed: 12/11/2022]
Abstract
The incidence of skin cancers, both nonmelanoma and melanoma, is increasing in the United States. The ultraviolet radiation, mainly from sun, is considered the major cause for these neoplasms. While nonmelanoma skin cancers are far more numerous, melanoma remains the most challenging. This is because melanoma can become extremely aggressive and its incidence is increasing worldwide due to lack of effective early detection, as well as disease recurrence, following both surgery and chemotherapy. Therefore, in addition to better treatment options, newer means are required to prevent melanomas from developing. Chemoprevention is a reasonable cost-effective approach to prevent carcinogenesis by inhibiting the processes of tumor initiation, promotion and progression. Melanoma is a progressive disease, which makes it very suitable for chemopreventive interventions, by targeting the processes and molecular pathways involved in the progression of melanoma. This review discusses the roles of various chemopreventive agents such as NSAIDs, statins, vitamins and dietary agents in melanoma and highlights current advancements and our perspective on future of melanoma chemoprevention. Although considerable preclinical data suggest that melanoma may be prevented or delayed by a numerous chemopreventive agents, we realize there are insufficient clinical studies evaluating their efficacy and long-term safety for human use.
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Affiliation(s)
- Gagan Chhabra
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Mary Ann Ndiaye
- Department of Dermatology, University of Wisconsin, Madison, WI
| | | | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, WI.,William S. Middleton VA Medical Center, Madison, WI
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Shah P, Trinh E, Qiang L, Xie L, Hu WY, Prins GS, Pi J, He YY. Arsenic Induces p62 Expression to Form a Positive Feedback Loop with Nrf2 in Human Epidermal Keratinocytes: Implications for Preventing Arsenic-Induced Skin Cancer. Molecules 2017; 22:molecules22020194. [PMID: 28125038 PMCID: PMC5361890 DOI: 10.3390/molecules22020194] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/17/2017] [Accepted: 01/20/2017] [Indexed: 01/29/2023] Open
Abstract
Exposure to inorganic arsenic in contaminated drinking water poses an environmental public health threat for hundreds of millions of people in the US and around the world. Arsenic is a known carcinogen for skin cancer. However, the mechanism by which arsenic induces skin cancer remains poorly understood. Here, we have shown that arsenic induces p62 expression in an autophagy-independent manner in human HaCaT keratinocytes. In mouse skin, chronic arsenic exposure through drinking water increases p62 protein levels in the epidermis. Nrf2 is required for basal and arsenic-induced p62 up-regulation. p62 knockdown reduces arsenic-induced Nrf2 activity, and induces sustained p21 up-regulation. p62 induction is associated with increased proliferation in mouse epidermis. p62 knockdown had little effect on arsenic-induced apoptosis, while it decreased cell proliferation following arsenic treatment. Our findings indicate that arsenic induces p62 expression to regulate the Nrf2 pathway in human keratinocytes and suggest that targeting p62 may help prevent arsenic-induced skin cancer.
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Affiliation(s)
- Palak Shah
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL 60637, USA.
- Committee on Molecular Pathogenesis and Molecular Medicine, University of Chicago, Chicago, IL 60637, USA.
| | - Elaine Trinh
- Department of Biological Sciences and Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Lei Qiang
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL 60637, USA.
| | - Lishi Xie
- Department of Urology, College of Medicine, and University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Wen-Yang Hu
- Department of Urology, College of Medicine, and University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Gail S Prins
- Department of Urology, College of Medicine, and University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Jingbo Pi
- Program of Environmental Toxicology, School of Public Health, China Medical University, Shenyang 110122, China.
| | - Yu-Ying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL 60637, USA.
- Committee on Molecular Pathogenesis and Molecular Medicine, University of Chicago, Chicago, IL 60637, USA.
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40
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Qiang L, Sample A, Shea CR, Soltani K, Macleod KF, He YY. Autophagy gene ATG7 regulates ultraviolet radiation-induced inflammation and skin tumorigenesis. Autophagy 2017; 13:2086-2103. [PMID: 28933598 PMCID: PMC5788558 DOI: 10.1080/15548627.2017.1380757] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 08/17/2017] [Accepted: 09/13/2017] [Indexed: 12/26/2022] Open
Abstract
Macroautophagy (hereafter autophagy) is a cellular "self-eating" process that is implicated in many human cancers, where it can act to either promote or suppress tumorigenesis. However, the role of autophagy in regulation of inflammation during tumorigenesis remains unclear. Here we show that autophagy is induced in the epidermis by ultraviolet (UV) irradiation and autophagy gene Atg7 promoted UV-induced inflammation and skin tumorigenesis. Atg7 regulated UV-induced cytokine expression and secretion, and promoted Ptgs2/Cox-2 expression through both a CREB1/CREB-dependent cell autonomous mechanism and an IL1B/IL1β-dependent non-cell autonomous mechanism. Adding PGE2 increased UV-induced skin inflammation and tumorigenesis, reversing the epidermal phenotype in mice with Atg7 deletion in keratinocytes. Similar to ATG7 knockdown in human keratinocytes, ATG5 knockdown inhibited UVB-induced expression of PTGS2 and cytokines. Furthermore, ATG7 loss increased the activation of the AMPK pathway and the phosphorylation of CRTC1, and led to endoplasmic reticulum (ER) accumulation and reduction of ER stress. Inducing ER stress and inhibiting calcium influx into the ER by thapsigargin reverses the inflammation and tumorigenesis phenotype in mice with epidermal Atg7 deletion. Taken together, these findings demonstrate that deleting autophagy gene Atg7 leads to a suppression of carcinogen-induced protumorigenic inflammatory microenvironment and tumorigenesis of the epithelium.
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Affiliation(s)
- Lei Qiang
- Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ashley Sample
- Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois, USA
| | - Christopher R. Shea
- Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Keyoumars Soltani
- Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Kay F. Macleod
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois, USA
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois, USA
| | - Yu-Ying He
- Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois, USA
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41
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Wawrzyniak P, Wawrzyniak M, Wanke K, Sokolowska M, Bendelja K, Rückert B, Globinska A, Jakiela B, Kast JI, Idzko M, Akdis M, Sanak M, Akdis CA. Regulation of bronchial epithelial barrier integrity by type 2 cytokines and histone deacetylases in asthmatic patients. J Allergy Clin Immunol 2017; 139:93-103. [DOI: 10.1016/j.jaci.2016.03.050] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 03/04/2016] [Accepted: 03/16/2016] [Indexed: 12/11/2022]
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42
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Moreno AS, McPhee R, Arruda LK, Howell MD. Targeting the T Helper 2 Inflammatory Axis in Atopic Dermatitis. Int Arch Allergy Immunol 2016; 171:71-80. [PMID: 27846627 DOI: 10.1159/000451083] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease that affects up to 25% of children and 10% of adults. The skin of patients with moderate to severe AD is characterized by significant barrier disruption and T helper 2 (Th2)-driven inflammation, which are thought to play a significant role in the pathogenesis of AD. Current management of AD is aimed at suppressing the inflammatory response and restoring the barrier function of the skin, reducing exacerbations, and preventing secondary skin infections. Combinations of treatment strategies are used to alleviate the symptoms of the disease; however, resolution is often temporary, and long-term usage of some of the medications for AD can be associated with significant side effects. Antibody therapies previously approved for other inflammatory diseases have been evaluated in patients with AD. Unfortunately, they have often failed to result in significant clinical improvement. Monoclonal antibodies and novel small molecules currently in development may provide more consistent benefit to patients with AD by specifically targeting the immune and molecular pathways important for the pathogenesis of AD. Here we review the state-of-the-art therapeutics targeting the Th2 axis in AD.
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Affiliation(s)
- Adriana S Moreno
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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43
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Cabanillas B, Novak N. Atopic dermatitis and filaggrin. Curr Opin Immunol 2016; 42:1-8. [PMID: 27206013 DOI: 10.1016/j.coi.2016.05.002] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 05/03/2016] [Accepted: 05/03/2016] [Indexed: 01/27/2023]
Affiliation(s)
- Beatriz Cabanillas
- Department of Dermatology and Allergy, University of Bonn, Sigmund-Freud-Str., 25, 53127 Bonn, Germany
| | - Natalija Novak
- Department of Dermatology and Allergy, University of Bonn, Sigmund-Freud-Str., 25, 53127 Bonn, Germany.
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