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Shiomi A, Kaneko T, Nishikawa K, Tsuchida A, Isoshima T, Sato M, Toyooka K, Doi K, Nishikii H, Shintaku H. High-throughput mechanical phenotyping and transcriptomics of single cells. Nat Commun 2024; 15:3812. [PMID: 38760380 PMCID: PMC11101642 DOI: 10.1038/s41467-024-48088-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 04/22/2024] [Indexed: 05/19/2024] Open
Abstract
The molecular system regulating cellular mechanical properties remains unexplored at single-cell resolution mainly due to a limited ability to combine mechanophenotyping with unbiased transcriptional screening. Here, we describe an electroporation-based lipid-bilayer assay for cell surface tension and transcriptomics (ELASTomics), a method in which oligonucleotide-labelled macromolecules are imported into cells via nanopore electroporation to assess the mechanical state of the cell surface and are enumerated by sequencing. ELASTomics can be readily integrated with existing single-cell sequencing approaches and enables the joint study of cell surface mechanics and underlying transcriptional regulation at an unprecedented resolution. We validate ELASTomics via analysis of cancer cell lines from various malignancies and show that the method can accurately identify cell types and assess cell surface tension. ELASTomics enables exploration of the relationships between cell surface tension, surface proteins, and transcripts along cell lineages differentiating from the haematopoietic progenitor cells of mice. We study the surface mechanics of cellular senescence and demonstrate that RRAD regulates cell surface tension in senescent TIG-1 cells. ELASTomics provides a unique opportunity to profile the mechanical and molecular phenotypes of single cells and can dissect the interplay among these in a range of biological contexts.
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Affiliation(s)
- Akifumi Shiomi
- Cluster for Pioneering Research, RIKEN, Saitama, Japan
- Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | | | | | | | | | - Mayuko Sato
- Center for Sustainable Resource Science, RIKEN, Yokohama, Japan
| | | | - Kentaro Doi
- Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, Japan
| | | | - Hirofumi Shintaku
- Cluster for Pioneering Research, RIKEN, Saitama, Japan.
- Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
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2
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Park SC, Lee YS, Cho KA, Kim SY, Lee YI, Lee SR, Lim IK. What matters in aging is signaling for responsiveness. Pharmacol Ther 2023; 252:108560. [PMID: 37952903 DOI: 10.1016/j.pharmthera.2023.108560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/03/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Biological responsiveness refers to the capacity of living organisms to adapt to changes in both their internal and external environments through physiological and behavioral mechanisms. One of the prominent aspects of aging is the decline in this responsiveness, which can lead to a deterioration in the processes required for maintenance, survival, and growth. The vital link between physiological responsiveness and the essential life processes lies within the signaling systems. To devise effective strategies for controlling the aging process, a comprehensive reevaluation of this connecting loop is imperative. This review aims to explore the impact of aging on signaling systems responsible for responsiveness and introduce a novel perspective on intervening in the aging process by restoring the compromised responsiveness. These innovative mechanistic approaches for modulating altered responsiveness hold the potential to illuminate the development of action plans aimed at controlling the aging process and treating age-related disorders.
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Affiliation(s)
- Sang Chul Park
- The Future Life & Society Research Center, Advanced Institute of Aging Science, Chonnam National University, Gwangju 61469, Republic of Korea.
| | - Young-Sam Lee
- Department of New Biology, DGIST, Daegu 42988, Republic of Korea; Well Aging Research Center, Division of Biotechnology, DGIST, Daegu 42988, Republic of Korea.
| | - Kyung A Cho
- Department of Biochemistry, Chonnam National University Medical School, Jeollanam-do 58128, Republic of Korea
| | - Sung Young Kim
- Department of Biochemistry, Konkuk University School of Medicine, Seoul 05029, Republic of Korea
| | - Yun-Il Lee
- Well Aging Research Center, Division of Biotechnology, DGIST, Daegu 42988, Republic of Korea; Interdisciplinary Engineering Major, Department of Interdisciplinary Studies, DGIST, Daegu 42988, Republic of Korea
| | - Seung-Rock Lee
- Department of Biochemistry, Chonnam National University Medical School, Jeollanam-do 58128, Republic of Korea; Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - In Kyoung Lim
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
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3
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D’Alessio A. Unraveling the Cave: A Seventy-Year Journey into the Caveolar Network, Cellular Signaling, and Human Disease. Cells 2023; 12:2680. [PMID: 38067108 PMCID: PMC10705299 DOI: 10.3390/cells12232680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In the mid-1950s, a groundbreaking discovery revealed the fascinating presence of caveolae, referred to as flask-shaped invaginations of the plasma membrane, sparking renewed excitement in the field of cell biology. Caveolae are small, flask-shaped invaginations in the cell membrane that play crucial roles in diverse cellular processes, including endocytosis, lipid homeostasis, and signal transduction. The structural stability and functionality of these specialized membrane microdomains are attributed to the coordinated activity of scaffolding proteins, including caveolins and cavins. While caveolae and caveolins have been long appreciated for their integral roles in cellular physiology, the accumulating scientific evidence throughout the years reaffirms their association with a broad spectrum of human disorders. This review article aims to offer a thorough account of the historical advancements in caveolae research, spanning from their initial discovery to the recognition of caveolin family proteins and their intricate contributions to cellular functions. Furthermore, it will examine the consequences of a dysfunctional caveolar network in the development of human diseases.
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Affiliation(s)
- Alessio D’Alessio
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “Agostino Gemelli”, IRCCS, 00168 Rome, Italy
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4
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Oh S, Rhee DY, Batsukh S, Son KH, Byun K. High-Intensity Focused Ultrasound Increases Collagen and Elastin Fiber Synthesis by Modulating Caveolin-1 in Aging Skin. Cells 2023; 12:2275. [PMID: 37759497 PMCID: PMC10527789 DOI: 10.3390/cells12182275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Caveolin-1 (Cav-1) induces cellular senescence by reducing extracellular signal-regulated kinase (ERK)1/2 phosphorylation and activating p53 via inhibition of mouse double minute 2 homolog (MDM2) and sirtuin 1 (Sirt1), promoting cell cycle arrest and decreasing fibroblast proliferation and collagen synthesis. High-intensity focused ultrasound (HIFU) treatment increases collagen synthesis, rejuvenating skin. Using H2O2-induced senescent fibroblasts and the skin of 12-month-old mice, we tested the hypothesis that HIFU increases collagen production through Cav-1 modulation. HIFU was administered at 0.3, 0.5, or 0.7 J in the LINEAR and DOT modes. In both models, HIFU administration decreased Cav-1 levels, increased ERK1/2 phosphorylation, and decreased the binding of Cav-1 with both MDM2 and Sirt1. HIFU administration decreased p53 activation (acetylated p53) and p21 levels and increased cyclin D1, cyclin-dependent kinase 2, and proliferating cell nuclear antigen levels in both models. HIFU treatment increased collagen and elastin expression, collagen fiber accumulation, and elastin fiber density in aging skin, with 0.5 J in LINEAR mode resulting in the most prominent effects. HIFU treatment increased collagen synthesis to levels similar to those in Cav-1-silenced senescent fibroblasts. Our results suggest that HIFU administration increases dermal collagen and elastin fibers in aging skin via Cav-1 modulation and reduced p53 activity.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University of Medicine, Incheon 21999, Republic of Korea
| | | | - Sosorburam Batsukh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University of Medicine, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University of Medicine, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health & Sciences and Technology (GAIHST), Gachon University, Incheon 21999, Republic of Korea
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Özdemir A, Şimay Demir YD, Yeşilyurt ZE, Ark M. Senescent cells and SASP in cancer microenvironment: New approaches in cancer therapy. Adv Protein Chem Struct Biol 2023; 133:115-58. [PMID: 36707199 DOI: 10.1016/bs.apcsb.2022.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Cellular senescence was first described as a state characterized by telomere shortening, resulting in limiting cell proliferation in aging. Apart from this type of senescence, which is called replicative senescence, other senescence types occur after exposure to different stress factors. One of these types of senescence induced after adjuvant therapy (chemotherapy and radiotherapy) is called therapy-induced senescence. The treatment with chemotherapeutics induces cellular senescence in normal and cancer cells in the tumor microenvironment. Thus therapy-induced senescence in the cancer microenvironment is accepted one of the drivers of tumor progression. Recent studies have revealed that senescence-associated secretory phenotype induction has roles in pathological processes such as inducing epithelial-mesenchymal transition and promoting tumor vascularization. Thus senolytic drugs that specifically kill senescent cells and senomorphic drugs that inhibit the secretory activity of senescent cells are seen as a new approach in cancer treatment. Developing and discovering new senotherapeutic agents targeting senescent cells is also gaining importance. In this review, we attempt to summarize the signaling pathways regarding the metabolism, cell morphology, and organelles of the senescent cell. Furthermore, we also reviewed the effects of SASP in the cancer microenvironment and the senotherapeutics that have the potential to be used as adjuvant therapy in cancer treatment.
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Park H, Shin JA, Lim J, Lee S, Ahn JH, Kang JL, Choi YH. Increased Caveolin-2 Expression in Brain Endothelial Cells Promotes Age-Related Neuroinflammation. Mol Cells 2022; 45:950-962. [PMID: 36572563 PMCID: PMC9794556 DOI: 10.14348/molcells.2022.0045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/30/2022] [Accepted: 10/12/2022] [Indexed: 12/28/2022] Open
Abstract
Aging is a major risk factor for common neurodegenerative diseases. Although multiple molecular, cellular, structural, and functional changes occur in the brain during aging, the involvement of caveolin-2 (Cav-2) in brain ageing remains unknown. We investigated Cav-2 expression in brains of aged mice and its effects on endothelial cells. The human umbilical vein endothelial cells (HUVECs) showed decreased THP-1 adhesion and infiltration when treated with Cav-2 siRNA compared to control siRNA. In contrast, Cav-2 overexpression increased THP-1 adhesion and infiltration in HUVECs. Increased expression of Cav-2 and iba-1 was observed in brains of old mice. Moreover, there were fewer iba-1-positive cells in the brains of aged Cav-2 knockout (KO) mice than of wild-type aged mice. The levels of several chemokines were higher in brains of aged wild-type mice than in young wild-type mice; moreover, chemokine levels were significantly lower in brains of young mice as well as aged Cav-2 KO mice than in their wild-type counterparts. Expression of PECAM1 and VE-cadherin proteins increased in brains of old wild-type mice but was barely detected in brains of young wild-type and Cav-2 KO mice. Collectively, our results suggest that Cav-2 expression increases in the endothelial cells of aged brain, and promotes leukocyte infiltration and age-associated neuroinflammation.
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Affiliation(s)
- Hyunju Park
- Department of Physiology, Inflammation-Cancer Microenvironment Research Center, Seoul 07804, Korea
| | - Jung A Shin
- Department of Anatomy, Ewha Womans University College of Medicine, Seoul 07804, Korea
| | - Jiwoo Lim
- Department of Physiology, Inflammation-Cancer Microenvironment Research Center, Seoul 07804, Korea
| | - Seulgi Lee
- Department of Physiology, Inflammation-Cancer Microenvironment Research Center, Seoul 07804, Korea
| | - Jung-Hyuck Ahn
- Department of Biochemistry, Ewha Womans University College of Medicine, Seoul 07804, Korea
| | - Jihee Lee Kang
- Department of Physiology, Inflammation-Cancer Microenvironment Research Center, Seoul 07804, Korea
| | - Youn-Hee Choi
- Department of Physiology, Inflammation-Cancer Microenvironment Research Center, Seoul 07804, Korea
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Abstract
The skin is the outermost layer and largest organ in the human body. Since the skin interfaces with the environment, it has a variety of roles, including providing a protective barrier against external factors, regulating body temperature, and retaining water in the body. It is also involved in the immune system, interacting with immune cells residing in the dermis. Caveolin-1 (CAV-1) is essential for caveolae formation and has multiple functions including endocytosis, lipid homeostasis, and signal transduction. CAV-1 is known to interact with a variety of signaling molecules and receptors and may influence cell proliferation and migration. Several skin-related disorders, especially those of the inflammatory or hyperproliferative type such as skin cancers, psoriasis, fibrosis, and wound healing, are reported to be associated with aberrant CAV-1 expression. In this review, we have explored CAV-1 involvement in skin physiology and skin diseases.
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O'Keeffe C, Greenwald I. EGFR signal transduction is downregulated in C. elegans vulval precursor cells during dauer diapause. Development 2022; 149:dev201094. [PMID: 36227589 PMCID: PMC9793418 DOI: 10.1242/dev.201094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
Abstract
Caenorhabditis elegans larvae display developmental plasticity in response to environmental conditions: in adverse conditions, second-stage larvae enter a reversible, long-lived dauer stage instead of proceeding to reproductive adulthood. Dauer entry interrupts vulval induction and is associated with a reprogramming-like event that preserves the multipotency of vulval precursor cells (VPCs), allowing vulval development to reinitiate if conditions improve. Vulval induction requires the LIN-3/EGF-like signal from the gonad, which activates EGFR-Ras-ERK signal transduction in the nearest VPC, P6.p. Here, using a biosensor and live imaging we show that EGFR-Ras-ERK activity is downregulated in P6.p in dauers. We investigated this process using gene mutations or transgenes to manipulate different steps of the pathway, and by analyzing LET-23/EGFR subcellular localization during dauer life history. We found that the response to EGF is attenuated at or upstream of Ras activation, and discuss potential membrane-associated mechanisms that could achieve this. We also describe other findings pertaining to the maintenance of VPC competence and quiescence in dauer larvae. Our analysis indicates that VPCs have L2-like and unique dauer stage features rather than features of L3 VPCs in continuous development.
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Affiliation(s)
- Catherine O'Keeffe
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Iva Greenwald
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
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9
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Martín MG, Dotti CG. Plasma membrane and brain dysfunction of the old: Do we age from our membranes? Front Cell Dev Biol 2022; 10:1031007. [PMID: 36274849 PMCID: PMC9582647 DOI: 10.3389/fcell.2022.1031007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/20/2022] [Indexed: 11/26/2022] Open
Abstract
One of the characteristics of aging is a gradual hypo-responsiveness of cells to extrinsic stimuli, mainly evident in the pathways that are under hormone control, both in the brain and in peripheral tissues. Age-related resistance, i.e., reduced response of receptors to their ligands, has been shown to Insulin and also to leptin, thyroid hormones and glucocorticoids. In addition, lower activity has been reported in aging for ß-adrenergic receptors, adenosine A2B receptor, and several other G-protein-coupled receptors. One of the mechanisms proposed to explain the loss of sensitivity to hormones and neurotransmitters with age is the loss of receptors, which has been observed in several tissues. Another mechanism that is finding more and more experimental support is related to the changes that occur with age in the lipid composition of the neuronal plasma membrane, which are responsible for changes in the receptors’ coupling efficiency to ligands, signal attenuation and pathway desensitization. In fact, recent works have shown that altered membrane composition—as occurs during neuronal aging—underlies reduced response to glutamate, to the neurotrophin BDNF, and to insulin, all these leading to cognition decay and epigenetic alterations in the old. In this review we present evidence that altered functions of membrane receptors due to altered plasma membrane properties may be a triggering factor in physiological decline, decreased brain function, and increased vulnerability to neuropathology in aging.
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Affiliation(s)
- Mauricio G. Martín
- Cellular and Molecular Neurobiology Department, Instituto Ferreyra (INIMEC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba (UNC), Córdoba, Argentina
- *Correspondence: Mauricio G. Martín, ; Carlos G. Dotti,
| | - Carlos G. Dotti
- Molecular Neuropathology Unit, Physiological and Pathological Processes Program, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid (UAM), Madrid, Spain
- *Correspondence: Mauricio G. Martín, ; Carlos G. Dotti,
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10
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Zhang S, Zhu N, Gu J, Li HF, Qiu Y, Liao DF, Qin L. Crosstalk between Lipid Rafts and Aging: New Frontiers for Delaying Aging. Aging Dis 2022; 13:1042-1055. [PMID: 35855333 PMCID: PMC9286918 DOI: 10.14336/ad.2022.0116] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/16/2022] [Indexed: 12/15/2022] Open
Abstract
With the rapid aging in the global population, delay of aging has become a hot research topic. Lipid rafts (LRs) are microdomains in the plasma membrane that contain sphingolipids and cholesterol. Emerging evidence indicates an interesting interplay between LRs and aging. LRs and their components are altered with aging. Further, the aging process is strongly influenced by LRs. In recent years, LRs and their component signaling molecules have been recognized to affect aging by interfering with its hallmarks. Therefore, targeting LRs is a promising strategy to delay aging.
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Affiliation(s)
- Shuo Zhang
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Neng Zhu
- 2Department of Urology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Jia Gu
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Hong-Fang Li
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yun Qiu
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Duan-Fang Liao
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Li Qin
- 1Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,3Hunan Province Engineering Research Center of Bioactive Substance Discovery of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
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Park HS, Lee J, Lee HS, Ahn SH, Ryu HY. Nuclear mRNA Export and Aging. Int J Mol Sci 2022; 23:5451. [PMID: 35628261 DOI: 10.3390/ijms23105451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 02/04/2023] Open
Abstract
The relationship between transcription and aging is one that has been studied intensively and experimentally with diverse attempts. However, the impact of the nuclear mRNA export on the aging process following its transcription is still poorly understood, although the nuclear events after transcription are coupled closely with the transcription pathway because the essential factors required for mRNA transport, namely TREX, TREX-2, and nuclear pore complex (NPC), physically and functionally interact with various transcription factors, including the activator/repressor and pre-mRNA processing factors. Dysregulation of the mediating factors for mRNA export from the nucleus generally leads to the aberrant accumulation of nuclear mRNA and further impairment in the vegetative growth and normal lifespan and the pathogenesis of neurodegenerative diseases. The optimal stoichiometry and density of NPC are destroyed during the process of cellular aging, and their damage triggers a defect of function in the nuclear permeability barrier. This review describes recent findings regarding the role of the nuclear mRNA export in cellular aging and age-related neurodegenerative disorders.
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Sepúlveda D, Cisternas-Olmedo M, Arcos J, Nassif M, Vidal RL. Contribution of Autophagy-Lysosomal Pathway in the Exosomal Secretion of Alpha-Synuclein and Its Impact in the Progression of Parkinson’s Disease. Front Mol Neurosci 2022; 15:805087. [PMID: 35250476 PMCID: PMC8891570 DOI: 10.3389/fnmol.2022.805087] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/07/2022] [Indexed: 01/07/2023] Open
Abstract
Parkinson’s disease (PD) is caused by the degeneration of dopaminergic neurons due to an accumulation of intraneuronal abnormal alpha-synuclein (α-syn) protein aggregates. It has been reported that the levels of exosomal α-syn of neuronal origin in plasma correlate significantly with motor dysfunction, highlighting the exosomes containing α-syn as a potential biomarker of PD. In addition, it has been found that the selective autophagy-lysosomal pathway (ALP) contributes to the secretion of misfolded proteins involved in neurodegenerative diseases. In this review, we describe the evidence that supports the relationship between the ALP and α-syn exosomal secretion on the PD progression and its implications in the diagnosis and progression of this pathology.
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Affiliation(s)
- Denisse Sepúlveda
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Biomedical Neuroscience Institute, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Marisol Cisternas-Olmedo
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Biomedical Neuroscience Institute, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Javiera Arcos
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Biomedical Neuroscience Institute, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Melissa Nassif
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - René L. Vidal
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Biomedical Neuroscience Institute, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
- *Correspondence: René L. Vidal,
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Goutas A, Outskouni Z, Papathanasiou I, Satra M, Koliakos G, Trachana V. Dysregulation of Caveolin-1 Phosphorylation and Nuclear Translocation Is Associated with Senescence Onset. Cells 2021; 10:cells10112939. [PMID: 34831162 PMCID: PMC8616550 DOI: 10.3390/cells10112939] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 11/30/2022] Open
Abstract
We recently reported that the inability of osteoarthritic (OA) chondrocytes to repair oxidative stress (OS) induced DNA damage is linked to Cav-1 overexpression/improper localization. We speculated that the senescent status of OA cells was responsible for this Cav-1 dysregulation. Here, to further investigate this hypothesis, we used Wharton Jelly derived mesenchymal stem cells (WJ-MSCs) and investigated Cav-1 function as cells reached replicative senescence or upon stress induced senescence (SIPS). We showed that Cav-1 is upregulated, phosphorylated and translocated to the nucleus in young WJ-MSCs upon acute exogenous OS, and that it returns back to basal/nonphosphorylated levels and exports the nucleus in the recovery phase. However, as cells reach senescence, this regulation is lost. OS did not induce any Cav-1-mediated response, which is concomitant with the inability of older cells to restore DNA damage. Furthermore, downregulation of Cav-1 resulted in persistent OS-induced DNA damage and subsequent onset of senescence. We also report that the establishment of senescence is mediated by autophagy stimulation, since downregulation of autophagy key molecule Atg5, simultaneously with Cav-1 downregulation, was found to inhibit SIPS. Basically, we propose that Cav-1 involvement in DNA damage response can lead to senescence, either because the damage is extensive or because Cav-1 is absent/unable to perform its homeostatic role.
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Affiliation(s)
- Andreas Goutas
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (Z.O.); (I.P.); (M.S.)
| | - Zozo Outskouni
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (Z.O.); (I.P.); (M.S.)
| | - Ioanna Papathanasiou
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (Z.O.); (I.P.); (M.S.)
| | - Maria Satra
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (Z.O.); (I.P.); (M.S.)
| | - George Koliakos
- Biohellenika, Biotechnology Company, 57001 Thessaloniki, Greece;
- Department of Biological Chemistry, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Varvara Trachana
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (Z.O.); (I.P.); (M.S.)
- Correspondence: ; Tel.: +30-2410-685624
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Ha TY, Choi YR, Noh HR, Cha SH, Kim JB, Park SM. Age-related increase in caveolin-1 expression facilitates cell-to-cell transmission of α-synuclein in neurons. Mol Brain 2021; 14:122. [PMID: 34321069 PMCID: PMC8320051 DOI: 10.1186/s13041-021-00834-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Parkinson's disease (PD) is the second most prevalent neurodegenerative disease, with aging being considered the greatest risk factor for developing PD. Caveolin-1 (Cav-1) is known to participate in the aging process. Recent evidence indicates that prion-like propagation of misfolded α-synuclein (α-syn) released from neurons to neighboring neurons plays an important role in PD progression. In the present study, we demonstrated that cav-1 expression in the brain increased with age, and considerably increased in the brain of A53T α-syn transgenic mice. Cav-1 overexpression facilitated the uptake of α-syn into neurons and formation of additional Lewy body-like inclusion bodies, phosphorylation of cav-1 at tyrosine 14 was found to be crucial for this process. This study demonstrates the relationship between age and α-syn spread and will facilitate our understanding of the molecular mechanism of the cell-to-cell transmission of α-syn.
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Affiliation(s)
- Tae-Young Ha
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
| | - Yu Ree Choi
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Hye Rin Noh
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Seon-Heui Cha
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Marine Biomedical Sciences, Hanseo University, Seosan, Chungcheongnam-do, Korea
| | - Jae-Bong Kim
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Sang Myun Park
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea.
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea.
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15
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Tang W, Li Y, Li Y, Wang Q. Caveolin-1, a novel player in cognitive decline. Neurosci Biobehav Rev 2021; 129:95-106. [PMID: 34237390 DOI: 10.1016/j.neubiorev.2021.06.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 06/29/2021] [Indexed: 12/12/2022]
Abstract
Cognitive decline (CD), which related to vascular dementia, Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis and diabetes mellitus, is a growing health concern that has a great impact on the patients' quality of life. Although extensive efforts, the mechanisms of CD are still far from being clarified, not to mention the effective treatment and prevention strategies. Caveolin-1 (Cav-1), a trans-membrane protein, is a major component of the caveolae structure and scaffolding proteins. Recently, ample evidence depicts a strong correlation between Cav-1 and CD, however, the specific role of Cav-1 in CD has not been clearly examined and how they might be connected have yet to be identified. This review seeks to provide a comprehensive overview about how Cav-1 modulates pathogeneses of CD-associated diseases. In summary, Cav-1 can promote structural and functional plasticity of neurons, improve neurogenesis, relieve mitochondrial dysfunction, inhibit inflammation and suppress oxidative stress, which have shed light on the idea that Cav-1 may be an efficacious therapeutic target to treat CD.
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Abstract
Cellular senescence occurs in response to diverse stresses (e.g., telomere shortening, DNA damage, oxidative stress, oncogene activation). A growing body of evidence indicates that alterations in multiple components of endocytic pathways contribute to cellular senescence. Clathrin-mediated endocytosis (CME) and caveolae-mediated endocytosis (CavME) represent major types of endocytosis that are implicated in senescence. More recent research has also identified a chromatin modifier and tumor suppressor that contributes to the induction of senescence via altered endocytosis. Here, molecular regulators of aberrant endocytosis-induced senescence are reviewed and discussed in the context of their capacity to serve as senescence-inducing stressors or modifiers.
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Affiliation(s)
- Eun-Young Shin
- Department of Biochemistry, Chungbuk National University College of Medicine, Cheongju, 28644, South Korea
| | - Nak-Kyun Soung
- World Class Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang-eup, Cheongju, 28116, South Korea
| | - Martin Alexander Schwartz
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, And Department of Cell Biology, Yale University School of Medicine, New Haven, CT, 06511, USA; Wellcome Trust Centre for Cell-matrix Research, University of Manchester, Manchester, UK.
| | - Eung-Gook Kim
- Department of Biochemistry, Chungbuk National University College of Medicine, Cheongju, 28644, South Korea.
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17
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Abstract
Life expectancy, and longevity have been increasing in recent years. However, this is, in most cases, accompanied by age-related diseases. Thus, it became essential to better understand the mechanisms inherent to aging, and to establish biomarkers that characterize this physiological process. Among all biomolecules, lipids appear to be a good target for the study of these biomarkers. In fact, some lipids have already been associated with age-related diseases. With the development of analytical techniques such as Mass Spectrometry, and Nuclear Magnetic Resonance, Lipidomics has been increasingly used to study pathological, and physiological states of an organism. Thus, the study of serum, and plasma lipidome in centenarians, and elderly individuals without age-related diseases can be a useful tool for the identification of aging biomarkers, and to understand physiological aging, and longevity. This review focus on the importance of lipids as biomarkers of aging, and summarize the changes in the lipidome that have been associated with aging, and longevity.
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Abstract
Cellular senescence is a feature of most somatic cells. It is characterized by an irreversible cell cycle arrest and by the ability to secrete a plethora of mediators of inflammation and growth factors, which can alter the senescent cell's microenvironment. Senescent cells accumulate in tissues over time and contribute to both aging and the development of age-associated diseases. Senescent cells have antagonistic pleiotropic roles in cancer. Given the inability of senescent cells to proliferate, cellular senescence is a powerful tumor suppressor mechanism in young individuals. However, accumulation of senescent stromal cells during aging can fuel cancer cell growth in virtue of their capacity to release factors that stimulate cell proliferation. Caveolin-1 is a structural protein component of caveolae, invaginations of the plasma membrane involved in a variety of cellular processes, including signal transduction. Mounting evidence over the last 10-15 years has demonstrated a central role of caveolin-1 in the development of a senescent phenotype and the regulation of both the anti-tumorigenic and pro-tumorigenic properties of cellular senescence. In this review, we discuss the cellular mechanisms and functions of caveolin-1 in the context of cellular senescence and their relevance to the biology of cancer.
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19
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Mittermeier C, Konopa A, Muehlich S. Molecular Mechanisms to Target Cellular Senescence in Hepatocellular Carcinoma. Cells 2020; 9:E2540. [PMID: 33255630 DOI: 10.3390/cells9122540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) has emerged as a major cause of cancer-related death and is the most common type of liver cancer. Due to the current paucity of drugs for HCC therapy there is a pressing need to develop new therapeutic concepts. In recent years, the role of Serum Response Factor (SRF) and its coactivators, Myocardin-Related Transcription Factors A and B (MRTF-A and -B), in HCC formation and progression has received considerable attention. Targeting MRTFs results in HCC growth arrest provoked by oncogene-induced senescence. The induction of senescence acts as a tumor-suppressive mechanism and therefore gains consideration for pharmacological interventions in cancer therapy. In this article, we describe the key features and the functional role of senescence in light of the development of novel drug targets for HCC therapy with a focus on MRTFs.
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21
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Yin Z, Park R, Choi BM. Isoparvifuran isolated from Dalbergia odorifera attenuates H 2O 2-induced senescence of BJ cells through SIRT1 activation and AKT/mTOR pathway inhibition. Biochem Biophys Res Commun 2020; 533:925-931. [PMID: 33010892 DOI: 10.1016/j.bbrc.2020.09.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 01/08/2023]
Abstract
Isoparvifuran is a benzofuran compound isolated from the heartwood of Dalbergia odorifera. Related research reported that isoparvifuran has antioxidant property. However, it is unclear whether isoparvifuran has anti-aging effects. In this research, we established an aging model, hydrogen peroxide (H2O2)-induced BJ cell senescence, to explore the protective effect of isoparvifuran on cell senescence and its related mechanisms. Our results revealed that isoparvifuran obviously attenuated H2O2-induced cell senescence, increased the cell proliferation rate,and reversed senescence-associated molecular markers expression such as cyclin D1, pRb, caveolin-1, ace-p53, p21 and p16. Moreover, isoparvifuran dose and time dependently increased the expression level of Sirtuin 1 (SIRT1) in BJ cells. The inhibition of SIRT1 obviously reversed the reduction of SA-β-gal activity and the alteration of senescence-associated molecular markers induced by isoparvifuran. Additionally, isoparvifuran also inhibited H2O2-induced AKT and S6 phosphorylation and increase of SA-β-gal activity. In summary, isoparvifuran protects BJ cells from H2O2-induced premature senescence, the anti-senescence effect of isoparvifuran is associated with the activation of SIRT1 and the suppression of AKT/mTOR signaling pathway.
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Affiliation(s)
- Zengsheng Yin
- Department of Anesthesiology, Affiliated Hospital of Jiujiang University, Jiujiang, 332000, China; Department of Biochemistry, School of Medicine, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Byung-Min Choi
- Department of Biochemistry, School of Medicine, Wonkwang University, Iksan, 54538, Republic of Korea.
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22
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Yang W, Geng C, Yang Z, Xu B, Shi W, Yang Y, Tian Y. Deciphering the roles of caveolin in neurodegenerative diseases: The good, the bad and the importance of context. Ageing Res Rev 2020; 62:101116. [PMID: 32554058 DOI: 10.1016/j.arr.2020.101116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases (NDDs), which contribute to progressive and irreversible impairments of both the structure and function of the nervous system, pose a substantial socioeconomic burden on society. Mitochondrial dysfunction, oxidative stress, membrane damage, DNA damage, and abnormal protein degradation pathways play pivotal roles in the etiology of NDDs. Recently, growing evidence has demonstrated that caveolins are important in the pathology of NDDs due to their cellular functions in signal transduction, endocytosis, transcytosis, cholesterol transport, and lipid homeostasis. Given the significance of caveolins, here we review the literature to clarify their molecular mechanisms and roles in NDDs. We first briefly introduce the general background on caveolins. Next, we focus on the various important functions of caveolins in the brain. Finally, we emphasize recent progress regarding caveolins, especially Cav-1, which exert both benefit and unfavorable effects in NDDs such as AD and PD. Collectively, the data presented here should advance the investigation of caveolins for the future development of innovative strategies for the treatment of NDDs.
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Affiliation(s)
- Wenwen Yang
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Chenhui Geng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Zhi Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Baoping Xu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Wenzhen Shi
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China.
| | - Ye Tian
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China.
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23
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Goutas A, Papathanasiou I, Mourmoura E, Tsesmelis K, Tsezou A, Trachana V. Oxidative Stress Response Is Mediated by Overexpression and Spatiotemporal Regulation of Caveolin-1. Antioxidants (Basel) 2020; 9:antiox9080766. [PMID: 32824727 PMCID: PMC7464519 DOI: 10.3390/antiox9080766] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/13/2020] [Accepted: 08/16/2020] [Indexed: 12/16/2022] Open
Abstract
Oxidative stress (OS) has been linked to the aetiology of many diseases including osteoarthritis (OA). Recent studies have shown that caveolin-1—a structural protein of plasma membrane’s caveolae—is upregulated in response to OS. Here, we explore the function of caveolin-1 in chondrocytes derived from healthy individuals (control) and OA patients that were subjected to exogenous OS. We showed that caveolin-1 was upregulated in response to acute OS in the control, but not in OA chondrocytes. Moreover, OS-induced DNA damage analysis revealed that control cells started repairing the DNA lesions 6 h post-oxidative treatment, while OA cells seemed unable to restore these damages. Importantly, in the control cells, we observed a translocation of caveolin-1 from the membrane/cytoplasm in and out of the nucleus, which coincided with the appearance and restoration of DNA lesions. When caveolin-1 was prevented from translocating to the nucleus, the control cells were unable to repair DNA damage. In OA cells, no such translocation of caveolin-1 was observed, which could account for their inability to repair DNA damage. Taken together, these results provide novel insights considering the role of caveolin-1 in response to OS-induced DNA damage while revealing its implication in the pathophysiology of OA.
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Affiliation(s)
- Andreas Goutas
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
| | - Ioanna Papathanasiou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Evanthia Mourmoura
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Konstantinos Tsesmelis
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
| | - Aspasia Tsezou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Varvara Trachana
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
- Correspondence:
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24
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Egger AN, Rajabi‐Estarabadi A, Williams NM, Resnik SR, Fox JD, Wong LL, Jozic I. The importance of caveolins and caveolae to dermatology: Lessons from the caves and beyond. Exp Dermatol 2020; 29:136-148. [PMID: 31845391 PMCID: PMC7028117 DOI: 10.1111/exd.14068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 12/15/2022]
Abstract
Caveolae are flask-shaped invaginations of the cell membrane rich in cholesterol and sphingomyelin, with caveolin proteins acting as their primary structural components that allow compartmentalization and orchestration of various signalling molecules. In this review, we discuss how pleiotropic functions of caveolin-1 (Cav1) and its intricate roles in numerous cellular functions including lipid trafficking, signalling, cell migration and proliferation, as well as cellular senescence, infection and inflammation, are integral for normal development and functioning of skin and its appendages. We then examine how disruption of the homeostatic levels of Cav1 can lead to development of various cutaneous pathophysiologies including skin cancers, cutaneous fibroses, psoriasis, alopecia, age-related changes in skin and aberrant wound healing and propose how levels of Cav1 may have theragnostic value in skin physiology/pathophysiology.
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Affiliation(s)
- Andjela N. Egger
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Ali Rajabi‐Estarabadi
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Natalie M. Williams
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Sydney R. Resnik
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Joshua D. Fox
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Lulu L. Wong
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Ivan Jozic
- Wound Healing and Regenerative Medicine Research ProgramDr. Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFLUSA
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25
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Kruglikov IL, Zhang Z, Scherer PE. Caveolin-1 in skin aging - From innocent bystander to major contributor. Ageing Res Rev 2019; 55:100959. [PMID: 31493519 PMCID: PMC6783389 DOI: 10.1016/j.arr.2019.100959] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/01/2019] [Accepted: 09/03/2019] [Indexed: 01/10/2023]
Abstract
Caveolin-1 (Cav-1) appears to be both a pathophysiological contributor and a target in different inflammatory and hyperproliferative skin conditions as well as in skin aging. Skin fibroblasts demonstrate an up-regulation of Cav-1 expression both in chronological and UV-induced aging, and such an up-regulation was observed both in vitro and in vivo. Typical alterations in aging skin involve a reduction of the dermis thickness, a significant expansion of the dermal white adipose tissue as well as modifications of the content and distribution of hyaluronan, impairment of autophagic flux, a reduction of collagen expression and an increase in tissue inflammation. All of these phenomena can be connected with changes in Cav-1 expression in the aging skin. Modified expression of Cav-1 can also significantly influence the mechanical properties of individual skin layers, thus changing the total mechanical stability of the layered composite skin/WAT, leading to typical structural modifications of the skin surface in the aging skin. Selective reduction of Cav-1 expression has the potential to exert anti-aging effects on the skin.
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Affiliation(s)
| | - Zhuzhen Zhang
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8549, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8549, USA.
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26
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Sugiyama MG, Fairn GD, Antonescu CN. Akt-ing Up Just About Everywhere: Compartment-Specific Akt Activation and Function in Receptor Tyrosine Kinase Signaling. Front Cell Dev Biol 2019; 7:70. [PMID: 31131274 PMCID: PMC6509475 DOI: 10.3389/fcell.2019.00070] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 04/09/2019] [Indexed: 12/12/2022] Open
Abstract
The serine/threonine kinase Akt is a master regulator of many diverse cellular functions, including survival, growth, metabolism, migration, and differentiation. Receptor tyrosine kinases are critical regulators of Akt, as a result of activation of phosphatidylinositol-3-kinase (PI3K) signaling leading to Akt activation upon receptor stimulation. The signaling axis formed by receptor tyrosine kinases, PI3K and Akt, as well as the vast range of downstream substrates is thus central to control of cell physiology in many different contexts and tissues. This axis must be tightly regulated, as disruption of PI3K-Akt signaling underlies the pathology of many diseases such as cancer and diabetes. This sophisticated regulation of PI3K-Akt signaling is due in part to the spatial and temporal compartmentalization of Akt activation and function, including in specific nanoscale domains of the plasma membrane as well as in specific intracellular membrane compartments. Here, we review the evidence for localized activation of PI3K-Akt signaling by receptor tyrosine kinases in various specific cellular compartments, as well as that of compartment-specific functions of Akt leading to control of several fundamental cellular processes. This spatial and temporal control of Akt activation and function occurs by a large number of parallel molecular mechanisms that are central to regulation of cell physiology.
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Affiliation(s)
- Michael G Sugiyama
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada.,Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
| | - Gregory D Fairn
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Costin N Antonescu
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada.,Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
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27
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Abstract
Reduced expression of caveolin-1 (Cav-1) is an important pathogenic factor in hypertrophic scarring (HTS). Such a reduction can be found in connection with the main known risk factors for HTS, including dark skin, female gender, young age, burn site and severity of the injury. The degree of overexpression of Cav-1 associated with different therapeutic options for HTS correlates with clinical improvements in HTS. This makes endo- or exogenous induction of Cav-1 not only an important therapeutic target for HTS, but also highlights its use as a preventive target to reduce or avoid HTS formation.
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Affiliation(s)
| | - Philipp E. Scherer
- Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, TX 75390-8549 USA
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28
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Abstract
Endocytosis mediates nutrient uptake, receptor internalization and the regulation of cell signaling. It is also hijacked by many bacteria, viruses and toxins to mediate their cellular entry. Several endocytic routes exist in parallel, fulfilling different functions. Most studies on endocytosis have used transformed cells in culture. However, as the majority of cells in an adult body have exited the cell cycle, our understanding is biased towards proliferating cells. Here, we review the evidence for the different pathways of endocytosis not only in dividing, but also in quiescent, senescent and terminally differentiated cells. During mitosis, residual endocytosis is dedicated to the internalization of caveolae and specific receptors. In non-dividing cells, clathrin-mediated endocytosis (CME) functions, but the activity of alternative processes, such as caveolae, macropinocytosis and clathrin-independent routes, vary widely depending on cell types and functions. Endocytosis supports the quiescent state by either upregulating cell cycle arrest pathways or downregulating mitogen-induced signaling, thereby inhibiting cell proliferation. Endocytosis in terminally differentiated cells, such as skeletal muscles, adipocytes, kidney podocytes and neurons, supports tissue-specific functions. Finally, uptake is downregulated in senescent cells, making them insensitive to proliferative stimuli by growth factors. Future studies should reveal the molecular basis for the differences in activities between the different cell states.
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Affiliation(s)
- Claudia Hinze
- Institute of Structural and Molecular Biology, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Emmanuel Boucrot
- Institute of Structural and Molecular Biology, Division of Biosciences, University College London, London WC1E 6BT, UK .,Institute of Structural and Molecular Biology, Department of Biological Sciences, Birkbeck College, London WC1E 7HX, UK
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29
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Yang R, Wang J, Zhou Z, Qi S, Ruan S, Lin Z, Xin Q, Lin Y, Chen X, Xie J. Role of caveolin-1 in epidermal stem cells during burn wound healing in rats. Dev Biol 2018; 445:271-279. [PMID: 30476483 DOI: 10.1016/j.ydbio.2018.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 12/24/2022]
Abstract
Local transplantation of stem cells has therapeutic effects on skin damage but cannot provide satisfactory wound healing. Studies on the mechanisms underlying the therapeutic effects of stem cells on skin wound healing will be needed. Hence, in the present study, we explored the role of Caveolin-1 in epidermal stem cells (EpiSCs) in the modulation of wound healing. We first isolated EpiSCs from mouse skin tissues and established stable EpiSCs with overexpression of Caveolin-1 using a lentiviral construct. We then evaluated the epidermal growth factor (EGF)-induced cell proliferation ability using cell counting Kit-8 (CCK-8) assay and assessed EpiSC pluripotency by examining Nanog mRNA levels in EpiSCs. Furthermore, we treated mice with skin burn injury using EpiSCs with overexpression of Caveolin-1. Histological examinations were conducted to evaluate re-epithelialization, wound scores, cell proliferation and capillary density in wounds. We found that overexpression of Caveolin-1 in EpiSCs promoted EGF-induced cell proliferation ability and increased wound closure in a mouse model of skin burn injury. Histological evaluation demonstrated that overexpression of Caveolin-1 in EpiSCs promoted re-epithelialization in wounds, enhanced cellularity, and increased vasculature, as well as increased wound scores. Taken together, our results suggested that Caveolin-1 expression in the EpiSCs play a critical role in the regulation of EpiSC proliferation ability and alteration of EpiSC proliferation ability may be an effective approach in promoting EpiSC-based therapy in skin wound healing.
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Affiliation(s)
- Ronghua Yang
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Jingru Wang
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Ziheng Zhou
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China
| | - Shaohai Qi
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China
| | - Shubin Ruan
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Zepeng Lin
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Qi Xin
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Yan Lin
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Xiaodong Chen
- Department of Burn Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China.
| | - Julin Xie
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China.
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Borlak J, Länger F, Chatterji B. Serum proteome mapping of EGF transgenic mice reveal mechanistic biomarkers of lung cancer precursor lesions with clinical significance for human adenocarcinomas. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3122-3144. [PMID: 29960043 DOI: 10.1016/j.bbadis.2018.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/12/2018] [Accepted: 06/25/2018] [Indexed: 12/18/2022]
Abstract
Atypical adenomatous hyperplasia (AAH) of the lung is a pre-invasive lesion (PL) with high risk of progression to lung cancer (LC). However, the pathways involved are uncertain. We searched for novel mechanistic biomarkers of AAH in an EGF transgenic disease model of lung cancer. Disease regulated proteins were validated by Western immunoblotting and immunohistochemistry (IHC) of control and morphologically altered respiratory epithelium. Translational work involved clinical resection material. Collectively, 68 unique serum proteins were identified by 2DE-MALDI-TOF mass spectrometry and 13 reached statistical significance (p < 0.05). EGF, amphiregulin and the EGFR endosomal sorting protein VPS28 were induced up to 5-fold while IHC confirmed strong induction of these proteins. Furthermore, ApoA1, α-2-macroglobulin, and vitamin-D binding protein were nearly 6- and 2-fold upregulated in AAH; however, ApoA1 was oppositely regulated in LC to evidence disease stage dependent regulation of this tumour suppressor. Conversely, plasminogen and transthyretin were highly significantly repressed by 3- and 20-fold. IHC confirmed induced ApoA1, Fetuin-B and transthyretin expression to influence calcification, inflammation and tumour-infiltrating macrophages. Moreover, serum ApoA4, ApoH and ApoM were 2-, 2- and 6-fold repressed; however tissue ApoM and sphingosine-1-phosphate receptor expression was markedly induced to suggest a critical role of sphingosine-1-phosphate signalling in PL and malignant transformation. Finally, a comparison of three different LC models revealed common and unique serum biomarkers mechanistically linked to EGFR, cMyc and cRaf signalling. Their validation by IHC on clinical resection material established relevance for distinct human lung pathologies. In conclusion, we identified mechanistic biomarker candidates recommended for in-depth clinical evaluation.
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Affiliation(s)
- Jürgen Borlak
- Hannover Medical School, Centre for Pharmacology and Toxicology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Florian Länger
- Hannover Medical School, Institute of Pathology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Bijon Chatterji
- Hannover Medical School, Centre for Pharmacology and Toxicology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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Liang YN, Liu Y, Wang L, Yao G, Li X, Meng X, Wang F, Li M, Tong D, Geng J. Combined caveolin-1 and epidermal growth factor receptor expression as a prognostic marker for breast cancer. Oncol Lett 2018; 15:9271-9282. [PMID: 29805656 DOI: 10.3892/ol.2018.8533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 07/27/2017] [Indexed: 12/17/2022] Open
Abstract
Previous studies have indicated that caveolin-1 (Cav-1) is able to bind the signal transduction factor epidermal growth factor receptor (EGFR) to regulate its tyrosine kinase activity. The aim of the present study was to evaluate the clinical significance of Cav-1 gene expression in association with the expression of EGFR in patients with breast cancer. Primary breast cancer samples from 306 patients were analyzed for Cav-1 and EGFR expression using immunohistochemistry, and clinical significance was assessed using multivariate Cox regression analysis, Kaplan-Meier estimator curves and the log-rank test. Stromal Cav-1 was downregulated in 38.56% (118/306) of tumor tissues, whereas cytoplasmic EGFR and Cav-1 were overexpressed in 53.92% (165/306) and 44.12% (135/306) of breast cancer tissues, respectively. EGFR expression was positively associated with cytoplasmic Cav-1 and not associated with stromal Cav-1 expression in breast cancer samples; however, low expression of stromal Cav-1 was negatively associated with cytoplasmic Cav-1 expression in total tumor tissues, and analogous results were identified in the chemotherapy group. Multivariate Cox's proportional hazards model analysis revealed that, for patients in the estrogen receptor (ER)(+) group, the expression of stromal Cav-1 alone was a significant prognostic marker of breast cancer. However, in the chemotherapy, human epidermal growth factor receptor 2 (HER-2)(-), HER-2(+) and ER(-) groups, the use of combined markers was more effective prognostic marker. Stromal Cav-1 has a tumor suppressor function, and the combined marker stromal Cav-1/EGFR expression was identified as an improved prognostic marker in the diagnosis of breast cancer. Parenchymal expression of Cav-1 is able to promote EGFR signaling in breast cancer, potentially being required for EGFR-mediated initiation of mitosis.
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Affiliation(s)
- Ya-Nan Liang
- College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Department of Pathology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yu Liu
- Department of Pathology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Letian Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Guodong Yao
- Department of Pathology, The Third Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xiaobo Li
- Department of Pathology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xiangning Meng
- Department of Medical Genetics, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Fan Wang
- School of Public Health, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Ming Li
- School of Public Health, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Dandan Tong
- Department of Pathology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Jingshu Geng
- Department of Pathology, The Third Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Department of Medical Genetics, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
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Khanehzar A, Fraire JC, Xi M, Feizpour A, Xu F, Wu L, Coronado EA, Reinhard BM. Nanoparticle-cell interactions induced apoptosis: a case study with nanoconjugated epidermal growth factor. Nanoscale 2018; 10:6712-6723. [PMID: 29589623 PMCID: PMC6035871 DOI: 10.1039/c8nr01106k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
In addition to the intrinsic toxicity associated with the chemical composition of nanoparticles (NP) and their ligands, biofunctionalized NP can perturb specific cellular processes through NP-cell interactions and induce programmed cell death (apoptosis). In the case of the epidermal growth factor (EGF), nanoconjugation has been shown to enhance the apoptotic efficacy of the ligand, but the critical aspects of the underlying mechanism and its dependence on the NP morphology remain unclear. In this manuscript we characterize the apoptotic efficacy of nanoconjugated EGF as a function of NP size (with sphere diameters in the range 20-80 nm), aspect ratio (A.R., in the range of 4.5 to 8.6), and EGF surface loading in EGFR overexpressing MDA-MB-468 cells. We demonstrate a significant size and morphology dependence in this relatively narrow parameter space with spherical NP with a diameter of approx. 80 nm being much more efficient in inducing apoptosis than smaller spherical NP or rod-shaped NP with comparable EGF loading. The nanoconjugated EGF is found to trigger an EGFR-dependent increase in cytoplasmic reactive oxygen species (ROS) levels but no indications of increased mitochondrial ROS levels or mitochondrial membrane damage are detected at early time points of the apoptosis induction. The increase in cytoplasmic ROS is accompanied by a perturbation of the intracellular glutathione homeostasis, which represents an important check-point for NP-EGF mediated apoptosis. Abrogation of the oxidative stress through the inhibition of EGFR signaling by the EGFR inhibitor AG1478 or addition of antioxidants N-acetyl cysteine (NAC) or tempol, but not trolox, successfully suppressed the apoptotic effect of nanoconjugated EGF. A model to account for the observed morphology dependence of EGF nanoconjugation enhanced apoptosis and the underlying NP-cell interactions is discussed.
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Affiliation(s)
- Ali Khanehzar
- Department of Chemistry and the Photonics Center, Boston University, Boston, Massachusetts 02215, USA.
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Hosseinzadeh A, Javad-Moosavi SA, Reiter RJ, Hemati K, Ghaznavi H, Mehrzadi S. Idiopathic pulmonary fibrosis (IPF) signaling pathways and protective roles of melatonin. Life Sci 2018; 201:17-29. [PMID: 29567077 DOI: 10.1016/j.lfs.2018.03.032] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/13/2018] [Accepted: 03/15/2018] [Indexed: 12/19/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by the progressive loss of lung function due to tissue scarring. A variety of pro-inflammatory and pro-fibrogenic factors including interleukin‑17A, transforming growth factor β, Wnt/β‑catenin, vascular endothelial growth factor, platelet-derived growth factor, fibroblast growth factors, endotelin‑1, renin angiotensin system and impaired caveolin‑1 function are involved in the IPF pathogenesis. Current therapies for IPF have some limitations and this highlights the need for effective therapeutic agents to treat this fatal disease. Melatonin and its metabolites are broad-spectrum antioxidants that not only remove reactive oxygen and nitrogen species by radical scavenging but also up-regulate the expression and activity of endogenous antioxidants. Via these actions, melatonin and its metabolites modulate a variety of molecular pathways in different pathophysiological conditions. Herein, we review the signaling pathways involved in the pathophysiology of IPF and the potentially protective effects of melatonin on these pathways.
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Affiliation(s)
- Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health, San Antonio, TX, USA
| | - Karim Hemati
- Department of Anesthesiology, Iran University of Medical Sciences, Tehran, Iran; Department of Anesthesiology, Ilam University of Medical Sciences, Ilam, Iran
| | - Habib Ghaznavi
- Department of Pharmacology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Balek L, Gudernova I, Vesela I, Hampl M, Oralova V, Kunova Bosakova M, Varecha M, Nemec P, Hall T, Abbadessa G, Hatch N, Buchtova M, Krejci P. ARQ 087 inhibits FGFR signaling and rescues aberrant cell proliferation and differentiation in experimental models of craniosynostoses and chondrodysplasias caused by activating mutations in FGFR1, FGFR2 and FGFR3. Bone 2017; 105:57-66. [PMID: 28826843 DOI: 10.1016/j.bone.2017.08.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 01/16/2023]
Abstract
Tyrosine kinase inhibitors are being developed for therapy of malignancies caused by oncogenic FGFR signaling but little is known about their effect in congenital chondrodysplasias or craniosynostoses that associate with activating FGFR mutations. Here, we investigated the effects of novel FGFR inhibitor, ARQ 087, in experimental models of aberrant FGFR3 signaling in cartilage. In cultured chondrocytes, ARQ 087 efficiently rescued all major effects of pathological FGFR3 activation, i.e. inhibition of chondrocyte proliferation, loss of extracellular matrix and induction of premature senescence. In ex vivo tibia organ cultures, ARQ 087 restored normal growth plate architecture and eliminated the suppressing FGFR3 effect on chondrocyte hypertrophic differentiation, suggesting that it targets the FGFR3 pathway specifically, i.e. without interference with other pro-growth pathways. Moreover, ARQ 087 inhibited activity of FGFR1 and FGFR2 mutants associated with Pfeiffer, Apert and Beare-Stevenson craniosynostoses, and rescued FGFR-driven excessive osteogenic differentiation in mouse mesenchymal micromass cultures or in ex vivo calvarial organ cultures. Our data warrant further development of ARQ 087 for clinical use in skeletal disorders caused by activating FGFR mutations.
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Affiliation(s)
- Lukas Balek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Vesela
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Marek Hampl
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Veronika Oralova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | | | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Pavel Nemec
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | | | | | - Nan Hatch
- University of Michigan School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Marcela Buchtova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic.
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.
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Yu DM, Jung SH, An HT, Lee S, Hong J, Park JS, Lee H, Lee H, Bahn MS, Lee HC, Han NK, Ko J, Lee JS, Ko YG. Caveolin-1 deficiency induces premature senescence with mitochondrial dysfunction. Aging Cell 2017; 16:773-784. [PMID: 28514055 PMCID: PMC5506423 DOI: 10.1111/acel.12606] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2017] [Indexed: 12/11/2022] Open
Abstract
Paradoxical observations have been made regarding the role of caveolin-1 (Cav-1) during cellular senescence. For example, caveolin-1 deficiency prevents reactive oxygen species-induced cellular senescence despite mitochondrial dysfunction, which leads to senescence. To resolve this paradox, we re-addressed the role of caveolin-1 in cellular senescence in human diploid fibroblasts, A549, HCT116, and Cav-1-/- mouse embryonic fibroblasts. Cav-1 deficiency (knockout or knockdown) induced cellular senescence via a p53-p21-dependent pathway, downregulating the expression level of the cardiolipin biosynthesis enzymes and then reducing the content of cardiolipin, a critical lipid for mitochondrial respiration. Our results showed that Cav-1 deficiency decreased mitochondrial respiration, reduced the activity of oxidative phosphorylation complex I (CI), inactivated SIRT1, and decreased the NAD+ /NADH ratio. From these results, we concluded that Cav-1 deficiency induces premature senescence via mitochondrial dysfunction and silent information regulator 2 homologue 1 (SIRT1) inactivation.
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Affiliation(s)
- Dong-Min Yu
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Seung Hee Jung
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Hyoung-Tae An
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Sungsoo Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jin Hong
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jun Sub Park
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hyun Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hwayeon Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Myeong-Suk Bahn
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hyung Chul Lee
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Na-Kyung Han
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Jesang Ko
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jae-Seon Lee
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Young-Gyu Ko
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
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Lee CY, Lai TY, Tsai MK, Chang YC, Ho YH, Yu IS, Yeh TW, Chou CC, Lin YS, Lawrence T, Hsu LC. The ubiquitin ligase ZNRF1 promotes caveolin-1 ubiquitination and degradation to modulate inflammation. Nat Commun 2017; 8:15502. [PMID: 28593998 PMCID: PMC5472178 DOI: 10.1038/ncomms15502] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 04/05/2017] [Indexed: 02/07/2023] Open
Abstract
Caveolin-1 (CAV1), the major constituent of caveolae, plays a pivotal role in various cellular biological functions, including cancer and inflammation. The ubiquitin/proteasomal pathway is known to contribute to the regulation of CAV1 expression, but the ubiquitin ligase responsible for CAV1 protein stability remains unidentified. Here we reveal that E3 ubiquitin ligase ZNRF1 modulates CAV1 protein stability to regulate Toll-like receptor (TLR) 4-triggered immune responses. We demonstrate that ZNRF1 physically interacts with CAV1 in response to lipopolysaccharide and mediates ubiquitination and degradation of CAV1. The ZNRF1-CAV1 axis regulates Akt-GSK3β activity upon TLR4 activation, resulting in enhanced production of pro-inflammatory cytokines and inhibition of anti-inflammatory cytokine IL-10. Mice with deletion of ZNRF1 in their hematopoietic cells display increased resistance to endotoxic and polymicrobial septic shock due to attenuated inflammation. Our study defines ZNRF1 as a regulator of TLR4-induced inflammatory responses and reveals another mechanism for the regulation of TLR4 signalling through CAV1.
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Affiliation(s)
- Chih-Yuan Lee
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
- Department of Surgery, National Taiwan University Hospital, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Ting-Yu Lai
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Meng-Kun Tsai
- Department of Surgery, National Taiwan University Hospital, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Yung-Chi Chang
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Yu-Hsin Ho
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - I-Shing Yu
- Laboratory Animal Center, College of Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Tzu-Wen Yeh
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Chih-Chang Chou
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - You-Sheng Lin
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Toby Lawrence
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1104, 13288 Marseille, France
| | - Li-Chung Hsu
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
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37
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Park SC. Survive or thrive: tradeoff strategy for cellular senescence. Exp Mol Med 2017; 49:e342. [PMID: 28572574 DOI: 10.1038/emm.2017.94] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/06/2017] [Accepted: 02/16/2017] [Indexed: 12/12/2022] Open
Abstract
Aging-dependent cellular behaviors toward extrinsic stress are characterized by the confined localization of certain molecules to either nuclear or perinuclear regions. Although most growth factors can activate downstream signaling in aging cells, they do not in fact have any impact on the cells because the signals cannot reach their genetic targets in the nucleus. For the same reason, varying apoptotic stress factors cannot stimulate the apoptotic pathway in senescent cells. Thus, the operation of a functional nuclear barrier in an aging-dependent manner has been investigated. To elucidate the mechanism for this process, the housekeeping transcription factor Sp1 was identified as a general regulator of nucleocytoplasmic trafficking (NCT) genes, including various nucleoporins, importins, exportins and Ran GTPase cycle-related genes. Interestingly, the posttranslational modification of Sp1 is readily influenced by extrinsic stress, including oxidative and metabolic stress. The decrease in SP1 O-GlcNAcylation under oxidative stress or during replicative senescence makes it susceptible to proteosomal degradation, resulting in defective NCT functions and leading to nuclear barrier formation. The operation of the nuclear barrier in aging provides a fundamental mechanism for cellular protection against stress and promotes survival at the expense of growth via stress-sensitive transcriptional control.
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Abstract
Caveolin-1 (Cav-1) is a trans-membrane protein that is a major component of the caveolae structure on the plasma membrane. Cav-1 is involved in the regulation of various cellular processes, including cell growth, differentiation, endocytosis, and in particular it has been implied in cellular senescence. Here we review current knowledge about Cav-1 in cellular signaling and discuss the role of Cav-1 in aging-related diseases.
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Affiliation(s)
- Kim Cuc Thi Nguyen
- Deparment of Life Science, ThaiNguyen University of Science, TanThinh Ward, ThaiNguyen, VietNam
| | - Kyung A Cho
- Department of Biochemistry, Chonnam National University Medical School, Gwangju, Korea
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Abstract
The life-long story of the heart starts concomitantly with primary differentiation events occurring in multipotent progenitors located in the so-called heart tube. This initially tubular structure starts a looping process, which leads to formation of the final four-chambered heart with a primary contribution of geometric and position-associated cell sensing. While this establishes the correct patterning of the final cardiac structure, it also provides feedbacks to fundamental cellular machineries controlling proliferation and differentiation, thus ensuring a coordinated restriction of cell growth and a myocyte terminal differentiation. Novel evidences provided by embryological and cell engineering studies have clarified the relevance of mechanics-supported position sensing for the correct recognition of cell fate inside developing embryos and multicellular aggregates. One of the main components of this pathway, the Hippo-dependent signal transduction machinery, is responsible for cell mechanics intracellular transduction with important consequences for gene transcription and cell growth control. Being the Hippo pathway also directly connected to stress responses and altered metabolism, it is tempting to speculate that permanent alterations of mechanosensing may account for modifying self-renewal control in tissue homeostasis. In the present contribution, we translate these concepts to the aging process and the failing of the human heart, two pathophysiologic conditions that are strongly affected by stress responses and altered metabolism.
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Affiliation(s)
- Maurizio Pesce
- 1 Tissue Engineering Research Unit, Centro Cardiologico Monzino, IRCCS , Milan, Italy
| | - Elisa Messina
- 2 Department of Pediatric Cardiology, "Sapienza" University , Rome, Italy
| | - Isotta Chimenti
- 3 Department of Medical Surgical Science and Biotechnology, "Sapienza" University , Rome, Italy
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Chakrabarti S, Chang A, Liu NJ, Gintzler AR. Chronic opioid treatment augments caveolin-1 scaffolding: relevance to stimulatory μ-opioid receptor adenylyl cyclase signaling. J Neurochem 2016; 139:737-747. [PMID: 27726130 DOI: 10.1111/jnc.13852] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/21/2016] [Accepted: 09/15/2016] [Indexed: 01/25/2023]
Abstract
Caveolin-1 is the predominant structural protein of caveolae, a subset of (lipid) membrane rafts that compartmentalize cell signaling. Caveolin-1 binds most to G protein-coupled receptors and their signaling partners, thereby enhancing interactions among signaling cascade components and the relative activation of specific G protein-coupled pathways. This study reveals that chronic opioid exposure of μ-opioid receptor (MOR) expressing Chinese hamster ovary cells (MOR-CHO) and chronic in vivo morphine exposure of rat spinal cord augmented recruitment of multiple components of MOR-adenylyl cyclase (AC) stimulatory signaling by caveolin-1. Strikingly, in MOR-CHO and spinal cord, blocking the caveolin-1 scaffolding domain substantially attenuated the chronic morphine-induced increased interaction of caveolin-1 with MOR, Gsα, protein phosphatase 2A (PP2A), and AC. Chronic morphine treatment also increased interactions among the above signaling proteins, thus enabling sufentanil to stimulate (rather than inhibit) cAMP production within lipid membrane microdomains. The latter finding underscores the functionality of augmented interactions among MOR, Gs α, PP2A, and AC. In the aggregate, our data strongly suggest that augmented caveolin-1 scaffolding undergirds the ability of chronic opioids to recruit an ancillary signaling pathway by acting as an organizing template for MOR-Gs α-AC signaling and delimiting the membrane compartment(s) in which it occurs. Since caveolin-1 binds to a wide spectrum of signaling molecules, altered caveolin-1 scaffolding following chronic opioid treatment is likely to pertain to most, if not all, MOR signaling partners. The chronic morphine-induced trigger that augments caveolin-1 scaffolding could represent a seminal perturbation that initiates the wide spectrum of adaptations thought to contribute to opioid tolerance and dependence.
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Affiliation(s)
- Sumita Chakrabarti
- Department of Obstetrics and Gynecology, State University of New York, Downstate Medical Center, Brooklyn, New York, USA
| | - Andrew Chang
- Department of Obstetrics and Gynecology, State University of New York, Downstate Medical Center, Brooklyn, New York, USA
| | - Nai-Jiang Liu
- Department of Obstetrics and Gynecology, State University of New York, Downstate Medical Center, Brooklyn, New York, USA
| | - Alan R Gintzler
- Department of Obstetrics and Gynecology, State University of New York, Downstate Medical Center, Brooklyn, New York, USA
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Anwar SL, Wahyono A, Aryandono T, Haryono SJ. Caveolin-1 in Breast Cancer: Single Molecule Regulation of Multiple Key Signaling Pathways. Asian Pac J Cancer Prev 2016; 16:6803-12. [PMID: 26514450 DOI: 10.7314/apjcp.2015.16.16.6803] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Caveolin-1 is a 22-kD trans-membrane protein enriched in particular plasma membrane invaginations known as caveolae. Cav-1 expression is often dysregulated in human breast cancers, being commonly upregulated in cancer cells and downregulated in stromal cells. As an intracellular scaffolding protein, Cav-1, is involved in several vital biological regulations including endocytosis, transcytosis, vesicular transport, and signaling pathways. Several pathways are modulated by Cav-1 including estrogen receptor, EGFR, Her2/neu, TGFβ, and mTOR and represent as major drivers in mammary carcinogenesis. Expression and role of Cav-1 in breast carcinogenesis is highly variable depending on the stage of tumor development as well as context of the cell. However, recent data have shown that downregulation of Cav-1 expression in stromal breast tumors is associated with frequent relapse, resistance to therapy, and poor outcome. Modification of Cav-1 expression for translational cancer therapy is particularly challenging since numerous signaling pathways might be affected. This review focuses on present understanding of Cav-1 in breast carcinogenesis and its potential role as a new biomarker for predicting therapeutic response and prognosis as well as new target for therapeutic manipulation.
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Affiliation(s)
- Sumadi Lukman Anwar
- Department of Surgery, Faculty of Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia E-mail :
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Abstract
The accumulation of senescent disc cells in degenerative intervertebral disc (IVD) suggests the detrimental roles of cell senescence in the pathogenesis of intervertebral disc degeneration (IDD). Disc cell senescence decreased the number of functional cells in IVD. Moreover, the senescent disc cells were supposed to accelerate the process of IDD via their aberrant paracrine effects by which senescent cells cause the senescence of neighboring cells and enhance the matrix catabolism and inflammation in IVD. Thus, anti-senescence has been proposed as a novel therapeutic target for IDD. However, the development of anti-senescence therapy is based on our understanding of the molecular mechanism of disc cell senescence. In this review, we focused on the molecular mechanism of disc cell senescence, including the causes and various molecular pathways. We found that, during the process of IDD, age-related damages together with degenerative external stimuli activated both p53-p21-Rb and p16-Rb pathways to induce disc cell senescence. Meanwhile, disc cell senescence was regulated by multiple signaling pathways, suggesting the complex regulating network of disc cell senescence. To understand the mechanism of disc cell senescence better contributes to developing the anti-senescence-based therapies for IDD.
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Affiliation(s)
- Chencheng Feng
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
| | - Huan Liu
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
| | - Minghui Yang
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
| | - Yang Zhang
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
| | - Bo Huang
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
| | - Yue Zhou
- a Department of Orthopedics , Xinqiao Hospital, Third Military Medical University , Chongqing , People's Republic of China
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Yang KE, Jang H, Hwang I, Chung Y, Choi J, Lee T, Chung Y, Lee M, Lee MY, Yeo E, Jang I. Phenyl 2-pyridyl ketoxime induces cellular senescence-like alterations via nitric oxide production in human diploid fibroblasts. Aging Cell 2016; 15:245-55. [PMID: 26696133 PMCID: PMC4783342 DOI: 10.1111/acel.12429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2015] [Indexed: 12/15/2022] Open
Abstract
Phenyl-2-pyridyl ketoxime (PPKO) was found to be one of the small molecules enriched in the extracellular matrix of near-senescent human diploid fibroblasts (HDFs). Treatment of young HDFs with PPKO reduced the viability of young HDFs in a dose- and time-dependent manner and resulted in senescence-associated β-galactosidase (SA-β-gal) staining and G2/M cell cycle arrest. In addition, the levels of some senescence-associated proteins, such as phosphorylated ERK1/2, caveolin-1, p53, p16(ink4a), and p21(waf1), were elevated in PPKO-treated cells. To monitor the effect of PPKO on cell stress responses, reactive oxygen species (ROS) production was examined by flow cytometry. After PPKO treatment, ROS levels transiently increased at 30 min but then returned to baseline at 60 min. The levels of some antioxidant enzymes, such as catalase, peroxiredoxin II and glutathione peroxidase I, were transiently induced by PPKO treatment. SOD II levels increased gradually, whereas the SOD I and III levels were biphasic during the experimental periods after PPKO treatment. Cellular senescence induced by PPKO was suppressed by chemical antioxidants, such as N-acetylcysteine, 2,2,6,6-tetramethylpiperidinyloxy, and L-buthionine-(S,R)-sulfoximine. Furthermore, PPKO increased nitric oxide (NO) production via inducible NO synthase (iNOS) in HDFs. In the presence of NOS inhibitors, such as L-NG-nitroarginine methyl ester and L-NG-monomethylarginine, PPKO-induced transient NO production and SA-β-gal staining were abrogated. Taken together, these results suggest that PPKO induces cellular senescence in association with transient ROS and NO production and the subsequent induction of senescence-associated proteins.
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Affiliation(s)
- Kyeong Eun Yang
- Drug & Disease Target Group Division of Bioconvergence Analysis Korea Basic Science Institute Daejeon 305‐333 Korea
| | - Hyun‐Jin Jang
- Drug & Disease Target Group Division of Bioconvergence Analysis Korea Basic Science Institute Daejeon 305‐333 Korea
| | - In‐Hu Hwang
- Department of Physiology Korea University College of Medicine Seoul 02841 Korea
| | - Young‐Ho Chung
- Drug & Disease Target Group Division of Bioconvergence Analysis Korea Basic Science Institute Daejeon 305‐333 Korea
| | - Jong‐Soon Choi
- Drug & Disease Target Group Division of Bioconvergence Analysis Korea Basic Science Institute Daejeon 305‐333 Korea
| | - Tae‐Hoon Lee
- Department of Oral Biochemistry Dental Science Research Institute Chonnam National University Gwangju 500‐757 Korea
| | - Yun‐Jo Chung
- Center for University‐Wide Research Facilities Chonbuk National University Jeonju Korea
| | - Min‐Seung Lee
- Department of Biochemistry College of Medicine Gachon University Inchon 406‐799 Korea
| | - Mi Young Lee
- KM Convergence Research Division Korea Institute of Oriental Medicine Daejeon 305‐811 Korea
| | - Eui‐Ju Yeo
- Department of Biochemistry College of Medicine Gachon University Inchon 406‐799 Korea
| | - Ik‐Soon Jang
- Drug & Disease Target Group Division of Bioconvergence Analysis Korea Basic Science Institute Daejeon 305‐333 Korea
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Cha SH, Choi YR, Heo CH, Kang SJ, Joe EH, Jou I, Kim HM, Park SM. Loss of parkin promotes lipid rafts-dependent endocytosis through accumulating caveolin-1: implications for Parkinson's disease. Mol Neurodegener 2015; 10:63. [PMID: 26627850 PMCID: PMC4666086 DOI: 10.1186/s13024-015-0060-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 11/23/2015] [Indexed: 02/07/2023] Open
Abstract
Background Parkinson’s disease (PD) is characterized by progressive loss of midbrain dopaminergic neurons, resulting in motor dysfunctions. While most PD is sporadic in nature, a significant subset can be linked to either autosomal dominant or recessive mutations. PARK2, encoding the E3 ubiquitin ligase, parkin, is the most frequently mutated gene in autosomal recessive early onset PD. It has recently been reported that PD-associated gene products such as PINK1, α-synuclein, LRRK2, and DJ-1, as well as parkin associate with lipid rafts, suggesting that the dysfunction of these proteins in lipid rafts may be a causal factor of PD. Therefore here, we examined the relationship between lipid rafts-related proteins and parkin. Results We identified caveolin-1 (cav-1), which is one of the major constituents of lipid rafts at the plasma membrane, as a substrate of parkin. Loss of parkin function was found to disrupt the ubiquitination and degradation of cav-1, resulting in elevated cav-1 protein level in cells. Moreover, the total cholesterol level and membrane fluidity was altered by parkin deficiency, causing dysregulation of lipid rafts-dependent endocytosis. Further, cell-to-cell transmission of α-synuclein was facilitated by parkin deficiency. Conclusions Our results demonstrate that alterations in lipid rafts by the loss of parkin via cav-1 may be a causal factor of PD, and cav-1 may be a novel therapeutic target for PD.
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Affiliation(s)
- Seon-Heui Cha
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea
| | - Yu Ree Choi
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea.,Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, Korea
| | - Cheol-Ho Heo
- Department of Chemistry, Ajou University, Suwon, Korea
| | - Seo-Jun Kang
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea.,Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, Korea
| | - Eun-Hye Joe
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea.,Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, Korea
| | - Ilo Jou
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea.,Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, Korea
| | | | - Sang Myun Park
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea. .,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea. .,Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, Korea.
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Darr J, Klochendler A, Isaac S, Geiger T, Geiger T, Eden A. Phosphoproteomic analysis reveals Smarcb1 dependent EGFR signaling in Malignant Rhabdoid tumor cells. Mol Cancer 2015; 14:167. [PMID: 26370283 PMCID: PMC4570560 DOI: 10.1186/s12943-015-0439-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/31/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The SWI/SNF ATP dependent chromatin remodeling complex is a multi-subunit complex, conserved in eukaryotic evolution that facilitates nucleosomal re-positioning relative to the DNA sequence. In recent years the SWI/SNF complex has emerged to play a role in cancer development as various sub-units of the complex are found to be mutated in a variety of tumors. One core-subunit of the complex, which has been well established as a tumor suppressor gene is SMARCB1 (SNF5/INI1/BAF47). Mutation and inactivation of SMARCB1 have been identified as the underlying mechanism leading to Malignant Rhabdoid Tumors (MRT) and Atypical Teratoid/Rhabdoid Tumors (AT/RT), two highly aggressive forms of pediatric neoplasms. METHODS We present a phosphoproteomic study of Smarcb1 dependent changes in signaling networks. The SILAC (Stable Isotopic Labeling of Amino Acids in Cell Culture) protocol was used to quantify in an unbiased manner any changes in the phosphoproteomic profile of Smarcb1 deficient murine rhabdoid tumor cell lines following Smarcb1 stable re-expression and under different serum conditions. RESULTS This study illustrates broad changes in the regulation of multiple biological networks including cell cycle progression, chromatin remodeling, cytoskeletal regulation and focal adhesion. Specifically, we identify Smarcb1 dependent changes in phosphorylation and expression of the EGF receptor, demonstrate downstream signaling and show that inhibition of EGFR signaling specifically hinders the proliferation of Smarcb1 deficient cells. CONCLUSIONS These results support recent findings regarding the effectivity of EGFR inhibitors in hindering the proliferation of human MRT cells and demonstrate that activation of EGFR signaling in Rhabdoid tumors is SMARCB1 dependent.
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Affiliation(s)
- Jonatan Darr
- Department of Cell and Developmental Biology, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Agnes Klochendler
- Department of Cell and Developmental Biology, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Sara Isaac
- Department of Cell and Developmental Biology, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Tamar Geiger
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Tami Geiger
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Amir Eden
- Department of Cell and Developmental Biology, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
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Delos Santos RC, Garay C, Antonescu CN. Charming neighborhoods on the cell surface: plasma membrane microdomains regulate receptor tyrosine kinase signaling. Cell Signal 2015; 27:1963-76. [PMID: 26163824 DOI: 10.1016/j.cellsig.2015.07.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 07/07/2015] [Indexed: 12/14/2022]
Abstract
Receptor tyrosine kinases (RTK) are an important family of growth factor and hormone receptors that regulate many aspects of cellular physiology. Ligand binding by RTKs at the plasma membrane elicits activation of many signaling intermediates. The spatial and temporal regulation of RTK signaling within cells is an important determinant of receptor signaling outcome. In particular, the compartmentalization of the plasma membrane into a number of microdomains allows context-specific control of RTK signaling. Indeed various RTKs are recruited to and enriched within specific plasma membrane microdomains under various conditions, including lipid-ordered domains such as caveolae and lipid rafts, clathrin-coated structures, tetraspanin-enriched microdomains, and actin-dependent protrusive membrane microdomains such as dorsal ruffles and invadosomes. We examine the evidence for control of RTK signaling by each of these plasma membrane microdomains, as well as molecular mechanisms for how this spatial organization controls receptor signaling.
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47
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Caravia L, Dudau M, Gherghiceanu M, Tanase C, Enciu AM. Could caveolae be acting as warnings of mitochondrial ageing? Mech Ageing Dev 2015; 146-148:81-7. [PMID: 25959712 DOI: 10.1016/j.mad.2015.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/09/2015] [Accepted: 04/28/2015] [Indexed: 11/20/2022]
Abstract
Ageing is a cellular process with many facets, some of which are currently undergoing a paradigm change. It is the case of "mitochondrial theory of ageing", which, interestingly, has been found lately to cross paths with another ageing dysfunctional process - intracellular signalling - in an unexpected point (or place) - caveolae. The latter represent membrane microdomains altered in senescent cells, scaffolded by proteins modified (posttranslational or as expression) with ageing. An important determinant of these alterations is oxidative stress, through increased production of reactive oxygen species that originate at mitochondrial site. Spanning from physical contact points, to shared structural proteins and similar function domains, caveolae and mitochondria might have more in common than originally thought. By reviewing recent data on oxidative stress impact on caveolae and caveolins, as well as possible interactions between caveolae and mitochondria, we propose a hypothesis for senescence-related involvement of caveolins.
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48
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Abstract
Transforming growth factor-beta-induced protein (TGFBIp) is ubiquitously expressed in the extracellular matrix (ECM) of various tissues and cell lines. Progressive accumulation of mutant TGFBIp is directly involved in the pathogenesis of TGFBI-linked corneal dystrophy. Recent studies reported that mutant TGFBIp accumulates in cells; however, the trafficking of TGFBIp is poorly understood. Therefore, we investigated TGFBIp trafficking to determine the route of its internalization and secretion and to elucidate its roles in the pathogenesis of granular corneal dystrophy type 2 (GCD2). Our data indicate that newly synthesized TGFBIp was secreted via the endoplasmic reticulum/Golgi-dependent secretory pathway, and this secretion was delayed in the corneal fibroblasts of patients with GCD2. We also found that TGFBIp was internalized by caveolae-mediated endocytosis, and the internalized TGFBIp accumulated after treatment with bafilomycin A1, an inhibitor of lysosomal degradation. In addition, the proteasome inhibitor MG132 inhibits the endocytosis of TGFBIp. Co-immunoprecipitation revealed that TGFBIp interacted with integrin αVβ3. Moreover, treatment with arginine-glycine-aspartic acid (RGD) tripeptide suppressed the internalization of TGFBIp. These insights on TGFBIp trafficking could lead to the identification of novel targets and the development of new therapies for TGFBI-linked corneal dystrophy.
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Affiliation(s)
- Seung-il Choi
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Yong-Sun Maeng
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-im Kim
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Yangsin Lee
- Department of Integrated Omics for Biomedical Science, Graduate School, Yonsei University, Seoul, South Korea
| | - Yong-Sun Kim
- Ilsong Institute of Life Science, Hallym University, Anyang, South Korea
- Department of Microbiology, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
- * E-mail:
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Li J, Jones B, Zhang Y, Vinardell T, Pei M. Low-density expansion protects human synovium-derived stem cells from replicative senescence: a preliminary study. Drug Deliv Transl Res 2012; 2:363-74. [PMID: 25787175 DOI: 10.1007/s13346-012-0094-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Our hypothesis in this study is that low seeding density expansion could retain human synovium-derived stem cell (hSDSC) "stemness", defined as higher proliferation and multi-differentiation capacity; retention of "stemness" probably occurs through the mitogen-activated protein kinase (MAPK) signaling pathway. hSDSCs were expanded in conventional plastic flasks for two consecutive passages at either low or high density (30 or 3,000 cells/cm(2)). Expanded cells were assessed for the effect of seeding density on their morphology, proliferation, apoptosis, stem cell surface markers, and multi-lineage differentiation capacity (chondrogenic, adipogenic, and osteogenic differentiation) using flow cytometry, biochemical analysis, histology, immunostaining, and real-time polymerase chain reaction. The MAPK signaling pathway (Erk1/2, p38, and JNK) and senescence-associated markers (p21 and caveolin) were also evaluated for their role in cell density-based monolayer expansion using western blot. Our data suggested that low seeding density expansion yielded hSDSCs with enhanced proliferation and multi-differentiation capacity compared to those grown at high seeding density, despite the fact that the cells expanded at both high and low density had lower osteogenic capacity. Low seeding density also down-regulated Erk1/2 and JNK expression and up-regulated p38 expression, which might be responsible for the retained "stemness" in the cells expanded at low density. Low seeding density expansion could retain hSDSC proliferation and multi-differentiation capacity and protect cells from replicative senescence.
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50
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Chen JR, Lazarenko OP, Blackburn ML, Badger TM, Ronis MJJ. Soy protein isolate inhibits high-fat diet-induced senescence pathways in osteoblasts to maintain bone acquisition in male rats. Endocrinology 2015; 156:475-87. [PMID: 25490147 PMCID: PMC4298323 DOI: 10.1210/en.2014-1427] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chronic consumption by experimental animals of a typical Western diet high in saturated fats and cholesterol during postnatal life has been demonstrated to impair skeletal development. However, the underlying mechanism by which high-fat, energy-dense diets affect bone-forming cell phenotypes is poorly understood. Here, we show that male weanling rats fed a diet containing 45% fat and 0.5% cholesterol made with casein (HF-Cas) for 6 weeks displayed lower bone mineral density and strength compared with those of AIN-93G-fed dietary controls. Substitution of casein with soy protein isolate (SPI) in the high-fat diet (HF-SPI) prevented these effects. The bone-sparing effects of SPI were associated with prevention of HF-Cas-induced osteoblast senescence pathways through suppression of the p53/p21 signaling pathways. HF-Cas-fed rats had increased caveolin-1 and down-regulated Sirt1, leading to activations of peroxisome proliferator-activated receptor γ (PPARγ) and p53/p21, whereas rats fed HF-SPI suppressed caveolin-1 and activated Sirt1 to deacetylate PPARγ and p53 in bone. Treatment of osteoblastic cells with nonesterified free fatty acid (NEFA) increased cell senescence signaling pathways. Isoflavones significantly blocked activations of senescence-associated β-galactosidase and PPARγ/p53/p21 by NEFA. Finally, replicative senescent osteoblastic cells and bone marrow mesenchymal ST2 cells exhibited behavior similar to that of cells treated with NEFA and in vivo bone cells in rats fed the HF-Cas diet. These results suggest that (1) high concentrations of NEFA occurring with HF intake are mediators of osteoblast cell senescence leading to impairment of bone development and acquisition and (2) the molecular mechanisms underlying the SPI-protective effects involve isoflavone-induced inhibition of osteoblastic cell senescence to prevent HF-induced bone impairments.
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Affiliation(s)
- Jin-Ran Chen
- Arkansas Children's Nutrition Center (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), Little Rock, Arkansas 72202; and Department of Pediatrics (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202
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