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Ma J, Bi J, Sun B, Li H, Li Y, Wang S. Zinc Improves Semen Parameters in High-Fat Diet-Induced Male Rats by Regulating the Expression of LncRNA in Testis Tissue. Biol Trace Elem Res 2023; 201:4793-4805. [PMID: 36600170 DOI: 10.1007/s12011-022-03550-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023]
Abstract
This study aimed to identify differentially expressed LncRNAs in testis tissue of male rats induced by high-fat diet and their changes after zinc supplementation, by constructing a high-fat feeding rat model, and then supplemented with zinc, and observed the expression of LncRNA in three groups of normal, high-fat fed, and zinc-intervened rats. Experimental studies show that the semen parameters of male rats with high-fat diet were decreased but recovered after zinc supplementation, and the related LncRNA also changed. Zinc may improve the high-fat diet-induced reduction of semen parameters by changing the expression of related LncRNA.
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Affiliation(s)
- Jing Ma
- Hebei Key Laboratory of Reproductive Medicine, Hebei Institute of Reproductive Health Science and Technology, No. 480 Heping Street, Shijiazhuang, 050071, Xinhua District, China
| | - Jiajie Bi
- Graduate School of Chengde Medical University, Chengde, 067000, China
| | - Bo Sun
- Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Huanhuan Li
- Hebei Key Laboratory of Reproductive Medicine, Hebei Institute of Reproductive Health Science and Technology, No. 480 Heping Street, Shijiazhuang, 050071, Xinhua District, China
| | - Yuejia Li
- Graduate School of Hebei Medical University, Shijiazhuang, 050017, China
| | - Shusong Wang
- Hebei Key Laboratory of Reproductive Medicine, Hebei Institute of Reproductive Health Science and Technology, No. 480 Heping Street, Shijiazhuang, 050071, Xinhua District, China.
- Graduate School of Chengde Medical University, Chengde, 067000, China.
- Graduate School of Hebei Medical University, Shijiazhuang, 050017, China.
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2
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Butera A, Agostini M, Cassandri M, De Nicola F, Fanciulli M, D’Ambrosio L, Falasca L, Nardacci R, Wang L, Piacentini M, Knight RA, Jia W, Sun Q, Shi Y, Wang Y, Candi E, Melino G. ZFP750 affects the cutaneous barrier through regulating lipid metabolism. SCIENCE ADVANCES 2023; 9:eadg5423. [PMID: 37115925 PMCID: PMC10146900 DOI: 10.1126/sciadv.adg5423] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
An essential function of the epidermis is to provide a physical barrier that prevents the loss of water. Essential mediators of this barrier function include ceramides, cholesterol, and very long chain fatty acids, and their alteration causes human pathologies, including psoriasis and atopic dermatitis. A frameshift mutation in the human ZNF750 gene, which encodes a zinc finger transcription factor, has been shown to cause a seborrhea-like dermatitis. Here, we show that genetic deletion of the mouse homolog ZFP750 results in loss of epidermal barrier function, which is associated with a substantial reduction of ceramides, nonpolar lipids. The alteration of epidermal lipid homeostasis is directly linked to the transcriptional activity of ZFP750. ZFP750 directly and/or indirectly regulates the expression of crucial enzymes primarily involved in the biosynthesis of ceramides. Overall, our study identifies the transcription factor ZFP750 as a master regulator epidermal homeostasis through lipid biosynthesis and thus contributing to our understanding of the pathogenesis of several human skin diseases.
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Affiliation(s)
- Alessio Butera
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Massimiliano Agostini
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Matteo Cassandri
- Department of Oncohematology, Bambino Gesù Children’s Hospital, 00146 Rome, Italy
| | - Francesca De Nicola
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Maurizio Fanciulli
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Lorenzo D’Ambrosio
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
- Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences (UniCamillus), Rome, Italy
| | - Lu Wang
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Mauro Piacentini
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
| | - Richard A. Knight
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Wei Jia
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Qiang Sun
- Laboratory of Cell Engineering, Institute of Biotechnology, Research Unit of Cell Death Mechanism, 2021RU008, Chinese Academy of Medical Science, 20 Dongda Street, Beijing, 100071, China
| | - Yufang Shi
- The Third Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, China
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Eleonora Candi
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
- IDI-IRCCS, via Monti di Creta, 106, 00166 Rome, Italy
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
- Corresponding author.
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Shutova MS, Borowczyk J, Russo B, Sellami S, Drukala J, Wolnicki M, Brembilla NC, Kaya G, Ivanov AI, Boehncke WH. Inflammation modulates intercellular adhesion and mechanotransduction in human epidermis via ROCK2. iScience 2023; 26:106195. [PMID: 36890793 PMCID: PMC9986521 DOI: 10.1016/j.isci.2023.106195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/05/2022] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Aberrant mechanotransduction and compromised epithelial barrier function are associated with numerous human pathologies including inflammatory skin disorders. However, the cytoskeletal mechanisms regulating inflammatory responses in the epidermis are not well understood. Here we addressed this question by inducing a psoriatic phenotype in human keratinocytes and reconstructed human epidermis using a cytokine stimulation model. We show that the inflammation upregulates the Rho-myosin II pathway and destabilizes adherens junctions (AJs) promoting YAP nuclear entry. The integrity of cell-cell adhesion but not the myosin II contractility per se is the determinative factor for the YAP regulation in epidermal keratinocytes. The inflammation-induced disruption of AJs, increased paracellular permeability, and YAP nuclear translocation are regulated by ROCK2, independently from myosin II activation. Using a specific inhibitor KD025, we show that ROCK2 executes its effects via cytoskeletal and transcription-dependent mechanisms to shape the inflammatory response in the epidermis.
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Affiliation(s)
- Maria S. Shutova
- University of Geneva, Department of Pathology and Immunology, Geneva, Switzerland
- University Hospitals of Geneva, Division of Dermatology and Venereology, Geneva, Switzerland
- Geneva Centre for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Julia Borowczyk
- University of Geneva, Department of Pathology and Immunology, Geneva, Switzerland
| | - Barbara Russo
- University of Geneva, Department of Pathology and Immunology, Geneva, Switzerland
- University Hospitals of Geneva, Division of Dermatology and Venereology, Geneva, Switzerland
- Geneva Centre for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sihem Sellami
- University of Geneva, Department of Pathology and Immunology, Geneva, Switzerland
| | - Justyna Drukala
- Jagiellonian University, Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
| | - Michal Wolnicki
- Department of Pediatric Urology, Jagiellonian University Medical College, Cracow, Poland
| | - Nicolo C. Brembilla
- University Hospitals of Geneva, Division of Dermatology and Venereology, Geneva, Switzerland
- Geneva Centre for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Gurkan Kaya
- University Hospitals of Geneva, Division of Dermatology and Venereology, Geneva, Switzerland
| | - Andrei I. Ivanov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Wolf-Henning Boehncke
- University of Geneva, Department of Pathology and Immunology, Geneva, Switzerland
- University Hospitals of Geneva, Division of Dermatology and Venereology, Geneva, Switzerland
- Geneva Centre for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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Xu YC, Xu YH, Zhao T, Wu LX, Yang SB, Luo Z. Waterborne Cu exposure increased lipid deposition and lipogenesis by affecting Wnt/β-catenin pathway and the β-catenin acetylation levels of grass carp Ctenopharyngodon idella. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114420. [PMID: 32244122 DOI: 10.1016/j.envpol.2020.114420] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/12/2020] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
Lipid metabolism could be used as a biomarker for environmental monitoring of metal pollution, including Cu. Given the potential role of the Wnt/β-catenin signaling pathway and acetylation in lipid metabolism, the aim of this study was to investigate the mechanism of Wnt signaling and acetylation mediating Cu-induced lipogenesis. Grass carp Ctenopharyngodon idella, widely distributed freshwater teleost, were used as the model. We found that waterborne Cu exposure increased the accumulation of Cu and lipid, up-regulated lipogenesis, suppressed Wnt signaling, reduced β-catenin protein level and its nuclear location, reduced the sirt1 mRNA levels and up-regulated the β-catenin acetylation level. Further investigation found that Cu up-regulated lipogenesis through Wnt/β-catenin pathway; Cu regulated the β-catenin acetylation, and K311 was the key acetylated residue after Cu incubation. SIRT1 mediated Cu-induced changes of acetylated β-catenin and played an essential role in nuclear accumulation of β-catenin and Cu-induced lipogenesis. Cu facilitated lipid accumulation via the regulation of Wnt pathway by SIRT1. For the first time, our study uncovered the novel mechanism for Wnt/β-catenin pathway and β-catenin acetylation levels mediating Cu-induced lipid deposition, which provided insights into the association between Cu exposure and lipid metabolism in fish and had important environmental implications for monitoring metal pollution in the water by using new biomarkers involved in lipid metabolism.
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Affiliation(s)
- Yi-Chuang Xu
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi-Huan Xu
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Tao Zhao
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Li-Xiang Wu
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shui-Bo Yang
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi Luo
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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Hao YH, Lafita-Navarro MC, Zacharias L, Borenstein-Auerbach N, Kim M, Barnes S, Kim J, Shay J, DeBerardinis RJ, Conacci-Sorrell M. Induction of LEF1 by MYC activates the WNT pathway and maintains cell proliferation. Cell Commun Signal 2019; 17:129. [PMID: 31623618 PMCID: PMC6798382 DOI: 10.1186/s12964-019-0444-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/20/2019] [Indexed: 02/07/2023] Open
Abstract
Background While regulated WNT activity is required for normal development and stem cell maintenance, mutations that lead to constitutive activation of the WNT pathway cause cellular transformation and drive colorectal cancer. Activation of the WNT pathway ultimately leads to the nuclear translocation of β-catenin which, in complex with TCF/LEF factors, promotes the transcription of genes necessary for growth. The proto-oncogene MYC is one of the most critical genes activated downstream the WNT pathway in colon cancer. Here, we investigate the converse regulation of the WNT pathway by MYC. Methods We performed RNA-seq analyses to identify genes regulated in cells expressing MYC. We validated the regulation of genes in the WNT pathway including LEF1 by MYC using RT-qPCR, Western blotting, and ChIP-seq. We investigated the importance of LEF1 for the viability of MYC-expressing cells in in fibroblasts, epithelial cells, and colon cells. Bioinformatic analyses were utilized to define the expression of MYC-regulated genes in human colon cancer and metabolomics analyses were used to identify pathways regulated by LEF1 in MYC expressing cells. Results MYC regulates the levels of numerous WNT-related genes, including the β-catenin co-transcription factor LEF1. MYC activates the transcription of LEF1 and is required for LEF1 expression in colon cancer cells and in primary colonic cells transformed by APC loss of function, a common mutation in colon cancer patients. LEF1 caused the retention of β-catenin in the nucleus, leading to the activation of the WNT pathway in MYC-expressing cells. Consequently, MYC-expressing cells were sensitive to LEF1 inhibition. Moreover, we describe two examples of genes induced in MYC-expressing cells that require LEF1 activity: the peroxisome proliferator activated receptor delta (PPARδ) and the Acyl CoA dehydrogenase 9 (ACAD9). Conclusions We demonstrated that MYC is a transcriptional regulator of LEF1 in colonic cells. Our work proposes a novel pathway by which MYC regulates proliferation through activating LEF1 expression which in turn activates the WNT pathway. Graphical Abstract ![]()
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Affiliation(s)
- Yi-Heng Hao
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | | | - Lauren Zacharias
- Howard Hughes Medical Institute and Children's Research Institute, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | | | - Min Kim
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Spencer Barnes
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jiwoong Kim
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jerry Shay
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, 75390, USA.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, 76092, Dallas, TX, USA
| | - Ralph J DeBerardinis
- Howard Hughes Medical Institute and Children's Research Institute, UT Southwestern Medical Center, Dallas, TX, 75390, USA.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, 76092, Dallas, TX, USA
| | - Maralice Conacci-Sorrell
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, 75390, USA. .,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, 76092, Dallas, TX, USA. .,Hamon Center for Regenerative Science and Medicine, UT Southwestern Medical Center, Dallas, 76092, TX, USA.
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6
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Butovich IA, Wilkerson A, Bhat N, McMahon A, Yuksel S. On the pivotal role of Elovl3/ELOVL3 in meibogenesis and ocular physiology of mice. FASEB J 2019; 33:10034-10048. [PMID: 31208226 DOI: 10.1096/fj.201900725r] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The purpose of this study was to examine the role of Elovl3 gene in meibogenesis and the impact of ELOVL3 protein ablation on the physiology of the mouse ocular surface and Meibomian glands (MGs). Elovl3 knockout, ELOVL3-ablated (E3hom) mice and their wild type littermates (E3wt) were studied side by side. E3hom mice had abnormal ocular phenotypes such as delayed eye opening, weeping eyes, crusty eyelids, eyelid edema, highly vascularized cornea and tarsal plates (TPs), slit eye, and increased tearing that resemble symptoms observed in human subjects with various forms of dry eye, MG dysfunction and blepharitis. Lipid profiling of E3hom TPs was conducted using chromatography and mass spectrometry. The analyses revealed that the lipid composition of E3hom TPs was strikingly different from that of their E3wt littermates. The mutation affected major classes of meibomian lipids - cholesteryl esters, wax esters, and cholesteryl esters of (O)-acylated w-hydroxy fatty acids. The studies illuminated the central role of ELOVL3 in producing C21:0-C29:0 fatty acids, including odd-chain and branched ones. Ablation of ELOVL3 leads to selective changes in the lipid composition of meibum, making E3hom mice instrumental in studying the mechanisms of the biosynthesis of meibum and modeling various pathologies of human ocular surface and adnexa.-Butovich, I. A., Wilkerson, A., Bhat, N., McMahon, A., Yuksel, S. On the pivotal role of Elovl3/ELOVL3 in meibogenesis and ocular physiology of mice.
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Affiliation(s)
- Igor A Butovich
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.,The Graduate School of Biomedical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Amber Wilkerson
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Nita Bhat
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Anne McMahon
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Seher Yuksel
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Transcription Factor CTIP1/ BCL11A Regulates Epidermal Differentiation and Lipid Metabolism During Skin Development. Sci Rep 2017; 7:13427. [PMID: 29044125 PMCID: PMC5647389 DOI: 10.1038/s41598-017-13347-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 09/21/2017] [Indexed: 12/13/2022] Open
Abstract
The epidermal permeability barrier (EPB) prevents organisms from dehydration and infection. The transcriptional regulation of EPB development is poorly understood. We demonstrate here that transcription factor COUP-TF-interacting protein 1 (CTIP1/BCL11A; hereafter CTIP1) is highly expressed in the developing murine epidermis. Germline deletion of Ctip1 (Ctip1−/−) results in EPB defects accompanied by compromised epidermal differentiation, drastic reduction in profilaggrin processing, reduced lamellar bodies in granular layers and significantly altered lipid composition. Transcriptional profiling of Ctip1−/− embryonic skin identified altered expression of genes encoding lipid-metabolism enzymes, skin barrier-associated transcription factors and junctional proteins. CTIP1 was observed to interact with genomic elements within the regulatory region of the gene encoding the differentiation-associated gene, Fos-related antigen2 (Fosl2) and lipid-metabolism-related gene, Fatty acid elongase 4 (Elvol4), and the expression of both was altered in Ctip1−/− mice. CTIP1 appears to play a role in EPB establishment of via direct or indirect regulation of a subset of genes encoding proteins involved in epidermal differentiation and lipid metabolism. These results identify potential, CTIP1-regulated avenues for treatment of skin disorders involving EBP defects.
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Hair Growth Cycle Is Arrested in SCD1 Deficiency by Impaired Wnt3a-Palmitoleoylation and Retrieved by the Artificial Lipid Barrier. J Invest Dermatol 2017; 137:1424-1433. [DOI: 10.1016/j.jid.2017.02.973] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/09/2017] [Accepted: 02/07/2017] [Indexed: 12/31/2022]
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The role of barrier genes in epidermal malignancy. Oncogene 2016; 35:5705-5712. [PMID: 27041586 DOI: 10.1038/onc.2016.84] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 02/17/2016] [Accepted: 02/18/2016] [Indexed: 12/24/2022]
Abstract
The outermost layer of the mammalian skin, the epidermis, forms a protective barrier against pathogenic microbes and tissue dehydration. This barrier is formed and maintained by complex genetic networks that connect cellular differentiation processes, enzymatic activities and cellular junctions. Disruption in these networks affects the balance between keratinocyte proliferation and differentiation resulting in barrier function impairment, epidermal hyperproliferation and in some cases, squamous cell carcinoma (SCC). Recent studies in wound-induced inflammation-mediated cancers in mice have identified dysregulation of core barrier components as tumor drivers. We therefore propose a hypothesis in which loss of key barrier genes, induce barrier dysfunction, and promote inflammation-driven epidermal hyperplasia and carcinogenesis over time. This emerging vision suggests that under specific genetic circumstances, localized barrier impairment could be considered as a hallmark of initiating lesions in epidermal SCC.
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Ewald DA, Malajian D, Krueger JG, Workman CT, Wang T, Tian S, Litman T, Guttman-Yassky E, Suárez-Fariñas M. Meta-analysis derived atopic dermatitis (MADAD) transcriptome defines a robust AD signature highlighting the involvement of atherosclerosis and lipid metabolism pathways. BMC Med Genomics 2015; 8:60. [PMID: 26459294 PMCID: PMC4603338 DOI: 10.1186/s12920-015-0133-x] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 09/11/2015] [Indexed: 12/24/2022] Open
Abstract
Background Atopic dermatitis (AD) is a common inflammatory skin disease with limited treatment options. Several microarray experiments have been conducted on lesional/LS and non-lesional/NL AD skin to develop a genomic disease phenotype. Although these experiments have shed light on disease pathology, inter-study comparisons reveal large differences in resulting sets of differentially expressed genes (DEGs), limiting the utility of direct comparisons across studies. Methods We carried out a meta-analysis combining 4 published AD datasets to define a robust disease profile, termed meta-analysis derived AD (MADAD) transcriptome. Results This transcriptome enriches key AD pathways more than the individual studies, and associates AD with novel pathways, such as atherosclerosis signaling (IL-37, selectin E/SELE). We identified wide lipid abnormalities and, for the first time in vivo, correlated Th2 immune activation with downregulation of key epidermal lipids (FA2H, FAR2, ELOVL3), emphasizing the role of cytokines on the barrier disruption in AD. Key AD “classifier genes” discriminate lesional from nonlesional skin, and may evaluate therapeutic responses. Conclusions Our meta-analysis provides novel and powerful insights into AD disease pathology, and reinforces the concept of AD as a systemic disease. Electronic supplementary material The online version of this article (doi:10.1186/s12920-015-0133-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- David A Ewald
- The Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA. .,Molecular Biomedicine, LEO Pharma AS, Ballerup, Denmark. .,Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kgs. Lyngby, Denmark.
| | - Dana Malajian
- The Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA. .,Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Columbia University, College of Physicians and Surgeons, New York, NY, USA.
| | - James G Krueger
- The Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA.
| | - Christopher T Workman
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kgs. Lyngby, Denmark.
| | - Tianjiao Wang
- School of Life Science, Jilin University, 2699 Qianjin Street, Changchun, Jilin, 130012, China.
| | - Suyan Tian
- School of Life Science, Jilin University, 2699 Qianjin Street, Changchun, Jilin, 130012, China.
| | - Thomas Litman
- Molecular Biomedicine, LEO Pharma AS, Ballerup, Denmark.
| | - Emma Guttman-Yassky
- The Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA. .,Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Mayte Suárez-Fariñas
- The Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA. .,Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Icahn Institute for Genomics and Multiscale Biology at Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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11
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Chen G, Fang X, Yu M. Regulation of gene expression in rats with spinal cord injury based on microarray data. Mol Med Rep 2015; 12:2465-72. [PMID: 25936407 PMCID: PMC4464272 DOI: 10.3892/mmr.2015.3670] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 03/09/2015] [Indexed: 02/06/2023] Open
Abstract
The present study aimed to investigate the molecular mechanisms of spinal cord injury (SCI) in rats. First, the differentially expressed genes (DGEs) were screened based on GSE45006 microarray data downloaded from Gene Expression Omnibus using the significant analysis of microarray (SAM) method. Screening was performed for DEGs which were negatively or possibly correlated with time and subsequently subjected to gene ontology (GO) functional annotation. Furthermore, pathway enrichment analysis using the Kyoto Encyclopedia of Genes and Genomes was also performed. In addition, a protein-protein interaction (PPI) network was constructed using the Search Tool for the Retrieval of Interacting Genes/Proteins database. Finally, GeneCodis was used to seek transcription factors and microRNAs that are involved in the regulation of DEGs. A total of 806 DEGs were upregulated and 549 DEGs were downregulated in the rats with SCI. Cholesterol metabolism-associated genes (e.g. HMGCS1, FDFT1 and IDI1) were negatively correlated with time, while injury genes (e.g. SERPING1, C1S and RAB27A) were positively correlated with time after SCI. PCNA, MCM2, JUN and SNAP25 were the hub proteins of the PPI network. The transcription factors LEF1 and SP1 were observed to be associated with the regulation of two DEGs that were involved in the cholesterol-associated metabolism as well as injury responses. A number of microRNAs (e.g. miR210, miR-487b and miR-16) were observed to target cholesterol metabolism-associated DGEs. The hub genes PCNA, MCM2, JUN and SNAP25 presumably have critical roles in rats with SCI, and the transcription factors LEF1 and SP1 may be important for the regulation of cholesterol metabolism and injury responses following SCI.
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Affiliation(s)
- Guoqiang Chen
- Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Xiutong Fang
- Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
| | - Meng Yu
- Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing 100038, P.R. China
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12
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Frances D, Sharma N, Pofahl R, Maneck M, Behrendt K, Reuter K, Krieg T, Klein CA, Haase I, Niemann C. A role for Rac1 activity in malignant progression of sebaceous skin tumors. Oncogene 2015; 34:5505-12. [DOI: 10.1038/onc.2014.471] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/28/2014] [Accepted: 12/19/2014] [Indexed: 11/09/2022]
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13
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Hinde E, Haslam IS, Schneider MR, Langan EA, Kloepper JE, Schramm C, Zouboulis CC, Paus R. A practical guide for the study of human and murine sebaceous glandsin situ. Exp Dermatol 2013; 22:631-7. [DOI: 10.1111/exd.12207] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Eleanor Hinde
- Institute of Inflammation and Repair; University of Manchester; Manchester; UK
| | - Iain S. Haslam
- Institute of Inflammation and Repair; University of Manchester; Manchester; UK
| | - Marlon R. Schneider
- Institute of Molecular Animal Breeding and Biotechnology; Gene Center; LMU Munich; Munich; Germany
| | | | | | | | - Christos C. Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology; Dessau Medical Center; Dessau; Germany
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14
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Ceramide synthesis in the epidermis. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1841:422-34. [PMID: 23988654 DOI: 10.1016/j.bbalip.2013.08.011] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 11/20/2022]
Abstract
The epidermis and in particular its outermost layer the stratum corneum provides terrestrial vertebrates with a pivotal defensive barrier against water loss, xenobiotics and harmful pathogens. A vital demand for this epidermal permeability barrier is the lipid-enriched lamellar matrix that embeds the enucleated corneocytes. Ceramides are the major components of these highly ordered intercellular lamellar structures, in which linoleic acid- and protein-esterified ceramides are crucial for structuring and maintaining skin barrier integrity. In this review, we describe the fascinating diversity of epidermal ceramides including 1-O-acylceramides. We focus on epidermal ceramide biosynthesis emphasizing its metabolic and topological requirements and discuss enzymes that may be involved in α- and ω-hydroxylation. Finally, we turn to epidermal ceramide regulation, highlighting transcription factors and liposensors recently described to play crucial roles in modulating skin lipid metabolism and epidermal barrier homeostasis. This article is part of a Special Issue entitled The Important Role of Lipids in the Epidermis and their Role in the Formation and Maintenance of the Cutaneous Barrier.
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15
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Breiden B, Sandhoff K. The role of sphingolipid metabolism in cutaneous permeability barrier formation. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1841:441-52. [PMID: 23954553 DOI: 10.1016/j.bbalip.2013.08.010] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 08/04/2013] [Accepted: 08/08/2013] [Indexed: 11/15/2022]
Abstract
The epidermal permeability barrier of mammalian skin is localized in the stratum corneum. Corneocytes are embedded in an extracellular, highly ordered lipid matrix of hydrophobic lipids consisting of about 50% ceramides, 25% cholesterol and 15% long and very long chain fatty acids. The most important lipids for the epidermal barrier are ceramides. The scaffold of the lipid matrix is built of acylceramides, containing ω-hydroxylated very long chain fatty acids, acylated at the ω-position with linoleic acid. After glucosylation of the acylceramides at Golgi membranes and secretion, the linoleic acid residues are replaced by glutamate residues originating from proteins exposed on the surface of corneocytes. Removal of their glucosyl residues generates a hydrophobic surface on the corneocytes used as a template for the formation of extracellular lipid layers of the water permeability barrier. Misregulation or defects in the formation of extracellular ceramide structures disturb barrier function. Important anabolic steps are the synthesis of ultra long chain fatty acids, their ω-hydroxylation, and formation of ultra long chain ceramides and glucosylceramides. The main probarrier precursor lipids, glucosylceramides and sphingomyelins, are packed in lamellar bodies together with hydrolytic enzymes such as glucosylceramide-β-glucosidase and acid sphingomyelinase and secreted into the intercelullar space between the stratum corneum and stratum granulosum. Inherited defects in the extracellular hydrolytic processing of the probarrier acylglucosylceramides impair epidermal barrier formation and cause fatal diseases: such as prosaposin deficiency resulting in lack of lysosomal lipid binding and transfer proteins, or the symptomatic clinical picture of the "collodion baby" in the absence of glucocerebrosidase. This article is part of a Special Issue entitled The Important Role of Lipids in the Epidermis and their Role in the Formation and Maintenance of the Cutaneous Barrier. Guest Editors: Kenneth R. Feingold and Peter Elias.
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Affiliation(s)
- Bernadette Breiden
- LIMES, Membrane Biology & Lipid Biochemistry Unit, c/o Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Konrad Sandhoff
- LIMES, Membrane Biology & Lipid Biochemistry Unit, c/o Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany.
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16
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Kakanj P, Reuter K, Séquaris G, Wodtke C, Schettina P, Frances D, Zouboulis CC, Lanske B, Niemann C. Indian hedgehog controls proliferation and differentiation in skin tumorigenesis and protects against malignant progression. Cell Rep 2013; 4:340-51. [PMID: 23871669 DOI: 10.1016/j.celrep.2013.06.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 05/10/2013] [Accepted: 06/24/2013] [Indexed: 12/17/2022] Open
Abstract
Mutations in the hedgehog pathway drive the formation of tumors in many different organs, including the development of basal cell carcinoma in the skin. However, little is known about the role of epidermal Indian hedgehog (Ihh) in skin physiology. Using mouse genetics, we identified overlapping and distinct functions of Ihh in different models of epidermal tumorigenesis. Epidermal deletion of Ihh resulted in increased formation of benign squamous papilloma. Strikingly, Ihh-deficient mice showed an increase in malignant squamous cell carcinoma and developed lung and lymph node metastases. In a sebaceous gland tumor model, Ihh deficiency inhibited tumor cell differentiation. More mechanistically, IHH stimulated cell proliferation by activating the transcription factor GLI2 in human keratinocytes and human tumors. Thus, our results uncover important functions for Ihh signaling in controlling proliferation, differentiation, malignant progression, and metastasis of epithelial cancer, establishing Ihh as a gatekeeper for controlling the grade of tumor malignancy.
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Affiliation(s)
- Parisa Kakanj
- Center for Molecular Medicine Cologne CMMC, University of Cologne, 50931 Cologne, Germany
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17
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Abstract
β-Catenin provides stability to epithelia exposed to mechanical stress in part by strengthening adherens junctions in response to tension. Many tissues in our body experience mechanical stresses caused by both internal and external forces. The skin, for example, must tolerate diverse mechanical insults. In this paper, we report a role for β-catenin in providing stability to epithelia under stress. Loss of β-catenin during epidermal development caused perinatal lethality. Mutant embryos up-regulated stress responses at sites of active morphogenesis, which became more widespread after the stresses associated with birth. In addition, selective loss of tight junctions occurred in focal regions. This was recapitulated in cultured β-catenin–null cells exposed to externally applied forces. In addition, mutant cells were defective in tension-induced engagement of adherens junctions. We found that β-catenin was required to recruit vinculin to the cell cortex and to strengthen the junction’s association with the underlying cytoskeleton in response to tension. These data demonstrate that a complete understanding of the functions of cell adhesion proteins must take into account their roles in response to mechanical stresses.
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Affiliation(s)
- Samriddha Ray
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
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18
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Sriwiriyanont P, Lynch KA, McFarland KL, Supp DM, Boyce ST. Characterization of hair follicle development in engineered skin substitutes. PLoS One 2013; 8:e65664. [PMID: 23799033 PMCID: PMC3684595 DOI: 10.1371/journal.pone.0065664] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 05/02/2013] [Indexed: 11/18/2022] Open
Abstract
Generation of skin appendages in engineered skin substitutes has been limited by lack of trichogenic potency in cultured postnatal cells. To investigate the feasibility and the limitation of hair regeneration, engineered skin substitutes were prepared with chimeric populations of cultured human keratinocytes from neonatal foreskins and cultured murine dermal papilla cells from adult GFP transgenic mice and grafted orthotopically to full-thickness wounds on athymic mice. Non-cultured dissociated neonatal murine-only skin cells, or cultured human-only skin keratinocytes and fibroblasts without dermal papilla cells served as positive and negative controls respectively. In this study, neonatal murine-only skin substitutes formed external hairs and sebaceous glands, chimeric skin substitutes formed pigmented hairs without sebaceous glands, and human-only skin substitutes formed no follicles or glands. Although chimeric hair cannot erupt readily, removal of upper skin layer exposed keratinized hair shafts at the skin surface. Development of incomplete pilosebaceous units in chimeric hair corresponded with upregulation of hair-related genes, LEF1 and WNT10B, and downregulation of a marker of sebaceous glands, Steroyl-CoA desaturase. Transepidermal water loss was normal in all conditions. This study demonstrated that while sebaceous glands may be involved in hair eruption, they are not required for hair development in engineered skin substitutes.
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Affiliation(s)
- Penkanok Sriwiriyanont
- School of Energy, Environmental, Biological and Medical Engineering, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Kaari A. Lynch
- Department of Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Kevin L. McFarland
- Research Department, Shriners Hospitals for Children, Cincinnati, Ohio, United States of America
| | - Dorothy M. Supp
- Department of Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, United States of America
- Research Department, Shriners Hospitals for Children, Cincinnati, Ohio, United States of America
| | - Steven T. Boyce
- School of Energy, Environmental, Biological and Medical Engineering, University of Cincinnati, Cincinnati, Ohio, United States of America
- Department of Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, United States of America
- Research Department, Shriners Hospitals for Children, Cincinnati, Ohio, United States of America
- * E-mail:
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19
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Lopez-Pajares V, Yan K, Zarnegar BJ, Jameson KL, Khavari PA. Genetic pathways in disorders of epidermal differentiation. Trends Genet 2013; 29:31-40. [PMID: 23141808 PMCID: PMC5477429 DOI: 10.1016/j.tig.2012.10.005] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 10/02/2012] [Accepted: 10/04/2012] [Indexed: 10/27/2022]
Abstract
More than 100 human genetic skin diseases, impacting over 20% of the population, are characterized by disrupted epidermal differentiation. A significant proportion of the 90 genes identified in these disorders to date are concentrated within several functional pathways, suggesting the emergence of organizing themes in epidermal differentiation. Among these are the Notch, transforming growth factor β (TGFβ), IκB kinase (IKK), Ras/mitogen-activated protein kinase (MAPK), phosphoinositide 3-kinase (PI3K), p63, and Wnt signaling pathways, as well as core biological processes mediating calcium homeostasis, tissue integrity, cornification, and lipid biogenesis. Here, we review recent results supporting the central role of these pathways in epidermal differentiation, highlighting the integration of genetic information with functional studies to illuminate the biological actions of these pathways in humans as well as to guide development of future therapeutics to correct their dysfunction.
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Affiliation(s)
| | - Karen Yan
- Program in Epithelial Biology, Stanford University, Stanford, CA 94305
| | - Brian J. Zarnegar
- Program in Epithelial Biology, Stanford University, Stanford, CA 94305
| | | | - Paul A. Khavari
- Program in Epithelial Biology, Stanford University, Stanford, CA 94305
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20
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Sinner DI, Kim GJ, Henderson GC, Igal RA. StearoylCoA desaturase-5: a novel regulator of neuronal cell proliferation and differentiation. PLoS One 2012; 7:e39787. [PMID: 22745828 PMCID: PMC3382174 DOI: 10.1371/journal.pone.0039787] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 05/30/2012] [Indexed: 12/15/2022] Open
Abstract
Recent studies have demonstrated that human stearoylCoA desaturase-1 (SCD1), a Δ9-desaturase that converts saturated fatty acids (SFA) into monounsaturated fatty acids, controls the rate of lipogenesis, cell proliferation and tumorigenic capacity in cancer cells. However, the biological function of stearoylCoA desaturase-5 (SCD5), a second isoform of human SCD that is highly expressed in brain, as well as its potential role in human disease, remains unknown. In this study we report that the constitutive overexpression of human SCD5 in mouse Neuro2a cells, a widely used cell model of neuronal growth and differentiation, displayed a greater n-7 MUFA-to-SFA ratio in cell lipids compared to empty-vector transfected cells (controls). De novo synthesis of phosphatidylcholine and cholesterolesters was increased whereas phosphatidylethanolamine and triacylglycerol formation was reduced in SCD5-expressing cells with respect to their controls, suggesting a differential use of SCD5 products for lipogenic reactions. We also observed that SCD5 expression markedly accelerated the rate of cell proliferation and suppressed the induction of neurite outgrowth, a typical marker of neuronal differentiation, by retinoic acid indicating that the desaturase plays a key role in the mechanisms of cell division and differentiation. Critical signal transduction pathways that are known to modulate these processes, such epidermal growth factor receptor (EGFR)Akt/ERK and Wnt, were affected by SCD5 expression. Epidermal growth factor-induced phosphorylation of EGFR, Akt and ERK was markedly blunted in SCD5-expressing cells. Furthermore, the activity of canonical Wnt was reduced whereas the non-canonical Wnt was increased by the presence of SCD5 activity. Finally, SCD5 expression increased the secretion of recombinant Wnt5a, a non-canonical Wnt, whereas it reduced the cellular and secreted levels of canonical Wnt7b. Our data suggest that, by a coordinated modulation of key lipogenic pathways and transduction signaling cascades, SCD5 participates in the regulation of neuronal cell growth and differentiation.
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Affiliation(s)
- Debora I. Sinner
- Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Medical Center, Cincinnati, Ohio, United States of America
| | - Gretchun J. Kim
- Department of Nutritional Sciences and Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, United States of America
| | - Gregory C. Henderson
- Department of Exercise Science, and Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, United States of America
| | - R. Ariel Igal
- Department of Nutritional Sciences and Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, United States of America
- * E-mail:
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