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Du M, Sun L, Guo J, Lv H. Macrophages and tumor-associated macrophages in the senescent microenvironment: From immunosuppressive TME to targeted tumor therapy. Pharmacol Res 2024; 204:107198. [PMID: 38692466 DOI: 10.1016/j.phrs.2024.107198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/02/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
In-depth studies of the tumor microenvironment (TME) have helped to elucidate its cancer-promoting mechanisms and inherent characteristics. Cellular senescence, which acts as a response to injury and can the release of senescence-associated secretory phenotypes (SASPs). These SASPs release various cytokines, chemokines, and growth factors, remodeling the TME. This continual development of a senescent environment could be associated with chronic inflammation and immunosuppressive TME. Additionally, SASPs could influence the phenotype and function of macrophages, leading to the recruitment of tumor-associated macrophages (TAMs). This contributes to tumor proliferation and metastasis in the senescent microenvironment, working in tandem with immune regulation, angiogenesis, and therapeutic resistance. This comprehensive review covers the evolving nature of the senescent microenvironment, macrophages, and TAMs in tumor development. We also explored the links between chronic inflammation, immunosuppressive TME, cellular senescence, and macrophages. Moreover, we compiled various tumor-specific treatment strategies centered on cellular senescence and the current challenges in cellular senescence research. This study aimed to clarify the mechanism of macrophages and the senescent microenvironment in tumor progression and advance the development of targeted tumor therapies.
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Affiliation(s)
- Ming Du
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Lu Sun
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Jinshuai Guo
- Department of General Surgery, Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110004, China.
| | - Huina Lv
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China.
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Gong J, Ding G, Hao Z, Li Y, Deng A, Zhang C. Elucidating the mechanism of corneal epithelial cell repair: unraveling the impact of growth factors. Front Med (Lausanne) 2024; 11:1384500. [PMID: 38638937 PMCID: PMC11024251 DOI: 10.3389/fmed.2024.1384500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024] Open
Abstract
The repair mechanism for corneal epithelial cell injuries encompasses migration, proliferation, and differentiation of corneal epithelial cells, and extracellular matrix remodeling of the stromal structural integrity. Furthermore, it involves the consequential impact of corneal limbal stem cells (LSCs). In recent years, as our comprehension of the mediating mechanisms underlying corneal epithelial injury repair has advanced, it has become increasingly apparent that growth factors play a pivotal role in this intricate process. These growth factors actively contribute to the restoration of corneal epithelial injuries by orchestrating responses and facilitating specific interactions at targeted sites. This article systematically summarizes the role of growth factors in corneal epithelial cell injury repair by searching relevant literature in recent years, and explores the limitations of current literature search, providing a certain scientific basis for subsequent basic research and clinical applications.
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Affiliation(s)
- Jinjin Gong
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
- Department of Ophthalmology, Jinan Second People’s Hospital, Jinan, China
| | - Gang Ding
- Department of Ophthalmology, Jinan Second People’s Hospital, Jinan, China
| | - Zhongkai Hao
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
- Department of Ophthalmology, Jinan Second People’s Hospital, Jinan, China
| | - Yuchun Li
- Wuxi No. 2 Chinese Medicine Hospital, Wuxi, China
| | - Aijun Deng
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
| | - Chenming Zhang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
- Department of Ophthalmology, Jinan Second People’s Hospital, Jinan, China
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Tomioka Y, Kitazawa K, Numa K, Hughes JWB, Yokoi N, Sotozono C. The existence of senescent cells in conjunctival epithelium from elderly individuals. Jpn J Ophthalmol 2024; 68:157-165. [PMID: 38311689 DOI: 10.1007/s10384-023-01047-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 11/29/2023] [Indexed: 02/06/2024]
Abstract
PURPOSE The ocular surface microenvironment changes with aging. However, it remains unclear if cellular senescence influences the ocular surface. We investigated the presence of p16INK4a-expressing senescent cells in healthy human conjunctiva. STUDY DESIGN Clinical and experimental. METHODS Healthy conjunctival tissue samples were obtained from middle-aged and elderly subjects. RT-qPCR was performed to assess the expression of senescence markers CDKN2A (p16INK4a) and CDKN1A (p21CIP1/WAF1) and immunostaining was performed to examine the expression of the senescence marker p16INK4a, stem cell markers Ki67 and p63, tight-junction marker ZO-1. RESULTS Our study involved 19 conjunctival tissue samples (10 elderly and 9 middle-aged), mean age [elderly: 75.8 ± 3.7 years (72-81), middle-aged: 52.7 ± 7 years (38-59)], sex (elderly: 3 men, 7 women; middle-aged: 3 men, 6 women). The expression of p16INK4a was significantly increased at the RNA level in the elderly compared to middle-aged (p < 0.05). Positivity rate of p16INK4a was significantly elevated in the elderly (15.0 ± 7.8%) compared to middle-aged (0.2 ± 0.6%) (p < 0.05). Positivity rate of Ki67and p63 was significantly reduced in the elderly (1.7 ± 1.7% and 16.5 ± 9.5%) compared to middle-aged (3.9 ± 1.8% and 24.7 ± 5.7%) (p < 0.05). ZO-1 expression was reduced in tissue samples showing p16INK4a-positivity but retained in tissue samples in which p16INK4a was undetectable. CONCLUSIONS Senescent cells accumulate with age in the conjunctival epithelium, accompanied by a decrease in Ki67, p63 and ZO-1 expressing cells.
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Affiliation(s)
- Yasufumi Tomioka
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan
| | - Koji Kitazawa
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan.
- Buck Institute for Research on Aging, Novato, CA, 94945, USA.
| | - Kohsaku Numa
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | | | - Norihiko Yokoi
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan
| | - Chie Sotozono
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan
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Ma C, Lv Q, Ma L, Xing B, Li Y, Li Z. CoCl 2-mimicked Hypoxia Induces the Assembly of Stress Granules in Trophoblast Cells Via eIF2α Phosphorylation-dependent and - Independent Pathways. Curr Mol Med 2024; 24:1291-1300. [PMID: 37711098 DOI: 10.2174/1566524023666230913111300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 09/16/2023]
Abstract
INTRODUCTION Hypoxia has been implicated in preeclampsia (PE) pathophysiology. Stress granules (SGs) are present in the placenta of patients with PE. However, the pathways that contribute to SG aggregation in PE remain poorly understood. OBJECTIVE The objective of the current study is to investigate this issue. METHODS We first established an in vitro hypoxia model using human trophoblast cell line HTR-8/SVneo treated with cobalt chloride (CoCl2). CCK8 assay and wound healing assay were conducted to assess the viability and migration of HTR-8/SVneo cells after exposure to CoCl2-mimicked hypoxia. SG component expression in HTR-8/SVneo cells treated with CoCl2 alone, or in combination with indicated siRNAs was evaluated by reverse transcription quantitative PCR (RT-qPCR), western blot and immunofluorescence staining. RESULTS Our results found CoCl2-mimicked hypoxia inhibits the proliferation and migration of HTR-8/SVneo cells. The treatment of CoCl2 can induce SG assembly in HTR-8/Svneo cells. Mechanistically, both heme-regulated inhibitors (HRI) mediated eukaryotic translation initiation factor (eIF)2α phosphorylation pathway and 4E binding protein 1 (4EBP1) pathway are involved in SG formation under the stress of CoCl2- mimicked hypoxia. CONCLUSION Hypoxia-induced SGs in trophoblast cells might contribute to the etiology of PE.
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Affiliation(s)
- Chunling Ma
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Qiulan Lv
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Liang Ma
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Baoxiang Xing
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yan Li
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Zhiyuan Li
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
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Soleimani M, Cheraqpour K, Koganti R, Djalilian AR. Cellular senescence and ophthalmic diseases: narrative review. Graefes Arch Clin Exp Ophthalmol 2023; 261:3067-3082. [PMID: 37079093 DOI: 10.1007/s00417-023-06070-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/21/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023] Open
Abstract
PURPOSE Cellular senescence is a state of permanent growth arrest whereby a cell reaches its replicative limit. However, senescence can also be triggered prematurely in certain stressors including radiation, oxidative stress, and chemotherapy. This stress-induced senescence has been studied in the context of promoting inflammation, tumor development, and several chronic degenerative diseases of aging. Emerging research has elucidated the role of senescence in various ocular diseases. METHODS The literature search was performed using PubMed with using the query (senescence OR aging) AND (eye disease OR ocular disease OR ophthalmic disease OR cornea OR glaucoma OR cataract OR retina) on October 20th, 2022. No time restriction was proposed. Articles were excluded if they were not referenced in English. RESULTS Overall, 51 articles regarding senescence and ocular diseases were found and summarized in this study. Several signaling pathways have been implicated in the development of senescence. Currently, senescence has been linked to various corneal and retinal pathologies, as well as cataract and glaucoma. Given the number of pathologies, senolytics, which are small molecules with the ability to selective targeting of senescent cells, can be used as therapeutic or prophylactic agents. CONCLUSIONS Senescence has been shown to underlie the pathogenesis of numerous ocular diseases. The overall literature on senescence and ocular disease is growing rapidly. There is an ongoing debate whether or not cellular senescence detected in experiments contributes in a significant way to diseases. Research on understanding the mechanism of senescence from ocular cells and tissues is just beginning. Multiple animal models are required to test potential senolytics. Currently, no studies exist to date which have demonstrated the benefits of senolytic therapies in human studies.
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Affiliation(s)
- Mohammad Soleimani
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
- Cornea Service, Stem Cell Therapy and Corneal Tissue Engineering Laboratory, Illinois Eye and Ear Infirmary, 1855 W. Taylor Street, M/C 648, Chicago, IL, 60612, USA
| | - Kasra Cheraqpour
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Raghuram Koganti
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
- Cornea Service, Stem Cell Therapy and Corneal Tissue Engineering Laboratory, Illinois Eye and Ear Infirmary, 1855 W. Taylor Street, M/C 648, Chicago, IL, 60612, USA.
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Kitazawa K, Matsumoto A, Numa K, Tomioka Y, Zhang ZA, Yamashita Y, Sotozono C, Desprez PY, Campisi J. Gene expression signatures of human senescent corneal and conjunctival epithelial cells. Aging (Albany NY) 2023; 15:9238-9249. [PMID: 37770232 PMCID: PMC10564427 DOI: 10.18632/aging.205113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
PURPOSE This study aimed to investigate the senescent phenotypes of human corneal and conjunctival epithelial cells. METHODS We examined cell morphology, senescence-associated β-galactosidase (SA-β-gal) activity, cell proliferation, and expression of senescence markers (p16 and p21). RNA sequencing analysis was conducted to compare gene expression profiles between senescent and non-senescent cells. Finally, the potential involvement of senescent cells in the pathogenesis of ocular surface diseases was investigated. RESULTS X-irradiated corneal and conjunctival epithelial cells exhibited typical senescence phenotypes, i.e., flattened morphologies, increased SA-β-gal activity, decreased cell proliferation, and increased expression of senescence markers, p16 and p21. RNA-seq analysis revealed substantial differences in gene expression profiles between senescent corneal (SCo) and conjunctival epithelial cells (SCj). Moreover, SCj were detected in pathological conjunctival tissues associated with limbal stem cell deficiency (LSCD) due to Stevens-Johnson syndrome or chemical burns, potentially being involved in abnormal differentiation. CONCLUSION This study highlights the cellular and molecular characteristics of senescent ocular surface cells, particularly in SCj that show abnormal keratin expression, and their potential roles in severe ocular surface diseases and pathology.
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Affiliation(s)
- Koji Kitazawa
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | - Akifumi Matsumoto
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | - Kohsaku Numa
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | - Yasufumi Tomioka
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | | | - Yohei Yamashita
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | - Chie Sotozono
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto 6020841, Japan
| | | | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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Kitazawa K, Numa K, Patel SK, King CD, Matsumoto A, Sotozono C, Desprez PY, Schilling B, Campisi J. Cellular senescence exacerbates features of aging in the eyes. AGING BIOLOGY 2023; 1:20230014. [PMID: 39239324 PMCID: PMC11375756 DOI: 10.59368/agingbio.20230014] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Aging is a process often associated with various age-related diseases. Senescence is one of the hallmarks of aging, and senescent cells acquire a complex, often pro-inflammatory, secretory phenotype termed the senescence-associated secretory phenotype (SASP). Here we show that ocular surface cells from human cornea become senescent upon X-irradiation, characterized by increased SA-β-gal activity, decreased cell proliferation, increased expression of p16, and disruption of epithelial barrier. Comprehensive transcriptomic and proteomic analysis revealed that human senescent ocular cells acquire a SASP that disrupts epithelial barrier function. During aging in mice, senescent ocular cells accumulate, resulting in decreased epithelial barrier and chronic inflammation. Lacrimal gland excision, which leads to symptoms of dry eye (DE), resulted in corneal opacity associated with severe angiogenesis only in aged mice but not in young mice, and early senolytic treatment protected old DE mice from corneal opacity. In conclusion, senescent cells alter the ocular microenvironment through their SASP and eliminating these cells could represent a potential approach to alleviate symptoms associated with aged ocular surface.
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Affiliation(s)
- Koji Kitazawa
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, 6020841, Japan
| | - Kohsaku Numa
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, 6020841, Japan
| | - Sandip Kumar Patel
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Christina D King
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Akifumi Matsumoto
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, 6020841, Japan
| | - Chie Sotozono
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, 6020841, Japan
| | - Pierre-Yves Desprez
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Birgit Schilling
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
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Imaizumi T, Hayashi R, Kudo Y, Li X, Yamaguchi K, Shibata S, Okubo T, Ishii T, Honma Y, Nishida K. Ocular instillation of conditioned medium from mesenchymal stem cells is effective for dry eye syndrome by improving corneal barrier function. Sci Rep 2023; 13:13100. [PMID: 37567940 PMCID: PMC10421917 DOI: 10.1038/s41598-023-40136-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023] Open
Abstract
Dry eye syndrome (DES) is a chronic ocular disease that induces epithelial damage to the cornea by decreasing tear production and quality. Adequate treatment options have not been established for severe DES such as Sjogren's syndrome due to complicated pathological conditions. To solve this problem, we focused on the conditioned medium of human adipose-derived mesenchymal stem cells (hAdMSC-CM), which have multiple therapeutic properties. Here, we showed that hAdMSC-CM suppressed Benzalkonium Chloride (BAC)-induced cytotoxicity and inflammation in human corneal epithelial cells (hCECs). In addition, hAdMSC-CM increased the expression level and regulated the localisation of barrier function-related components, and improved the BAC-induced barrier dysfunction in hCECs. RNA-seq analysis and pharmacological inhibition experiments revealed that the effects of hAdMSC-CM were associated with the TGFβ and JAK-STAT signalling pathways. Moreover, in DES model rats with exorbital and intraorbital lacrimal gland excision, ocular instillation of hAdMSC-CM suppressed corneal epithelial damage by improving barrier dysfunction of the cornea. Thus, we demonstrated that hAdMSC-CM has multiple therapeutic properties associated with TGFβ and JAK-STAT signalling pathways, and ocular instillation of hAdMSC-CM may serve as an innovative therapeutic agent for DES by improving corneal barrier function.
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Affiliation(s)
- Tsutomu Imaizumi
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Ryuhei Hayashi
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Osaka, 565-0871, Japan.
| | - Yuji Kudo
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Xiaoqin Li
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Kaito Yamaguchi
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Shun Shibata
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8575, Japan
| | - Toru Okubo
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Tsuyoshi Ishii
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Yoichi Honma
- Basic Research Development Division, ROHTO Pharmaceutical, Ikuno-ku, Osaka, 544-8666, Japan
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Osaka, 565-0871, Japan.
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Ma Y, Farny NG. Connecting the dots: Neuronal senescence, stress granules, and neurodegeneration. Gene 2023; 871:147437. [PMID: 37084987 PMCID: PMC10205695 DOI: 10.1016/j.gene.2023.147437] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/09/2023] [Accepted: 04/14/2023] [Indexed: 04/23/2023]
Abstract
Cellular senescence increases with aging. While senescence is associated with an exit of the cell cycle, there is ample evidence that post-mitotic cells including neurons can undergo senescence as the brain ages, and that senescence likely contributes significantly to the progression of neurodegenerative diseases (ND) such as Alzheimer's Disease (AD) and Amyotrophic Lateral Sclerosis (ALS). Stress granules (SGs) are stress-induced cytoplasmic biomolecular condensates of RNA and proteins, which have been linked to the development of AD and ALS. The SG seeding hypothesis of NDs proposes that chronic stress in aging neurons results in static SGs that progress into pathological aggregates Alterations in SG dynamics have also been linked to senescence, though studies that link SGs and senescence in the context of NDs and the aging brain have not yet been performed. In this Review, we summarize the literature on senescence, and explore the contribution of senescence to the aging brain. We describe senescence phenotypes in aging neurons and glia, and their links to neuroinflammation and the development of AD and ALS. We further examine the relationships of SGs to senescence and to ND. We propose a new hypothesis that neuronal senescence may contribute to the mechanism of SG seeding in ND by altering SG dynamics in aged cells, thereby providing additional aggregation opportunities within aged neurons.
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Affiliation(s)
- Yizhe Ma
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, USA
| | - Natalie G Farny
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, USA.
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Kim HJ, Hwang JS, Noh KB, Oh SH, Park JB, Shin YJ. A p-Tyr42 RhoA Inhibitor Promotes the Regeneration of Human Corneal Endothelial Cells by Ameliorating Cellular Senescence. Antioxidants (Basel) 2023; 12:1186. [PMID: 37371916 DOI: 10.3390/antiox12061186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/18/2023] [Accepted: 05/27/2023] [Indexed: 06/29/2023] Open
Abstract
The development of treatment strategies for human corneal endothelial cells (hCECs) disease is necessary because hCECs do not regenerate in vivo due to the properties that are similar to senescence. This study is performed to investigate the role of a p-Tyr42 RhoA inhibitor (MH4, ELMED Inc., Chuncheon) in transforming growth factor-beta (TGF-β)- or H2O2-induced cellular senescence of hCECs. Cultured hCECs were treated with MH4. The cell shape, proliferation rate, and cell cycle phases were analyzed. Moreover, cell adhesion assays and immunofluorescence staining for F-actin, Ki-67, and E-cadherin were performed. Additionally, the cells were treated with TGF-β or H2O2 to induce senescence, and mitochondrial oxidative reactive oxygen species (ROS) levels, mitochondrial membrane potential, and NF-κB translocation were evaluated. LC3II/LC3I levels were determined using Western blotting to analyze autophagy. MH4 promotes hCEC proliferation, shifts the cell cycle, attenuates actin distribution, and increases E-cadherin expression. TGF-β and H2O2 induce senescence by increasing mitochondrial ROS levels and NF-κB translocation into the nucleus; however, this effect is attenuated by MH4. Moreover, TGF-β and H2O2 decrease the mitochondrial membrane potential and induce autophagy, while MH4 reverses these effects. In conclusion, MH4, a p-Tyr42 RhoA inhibitor, promotes the regeneration of hCECs and protects hCECs against TGF-β- and H2O2-induced senescence via the ROS/NF-κB/mitochondrial pathway.
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Affiliation(s)
- Hyeon Jung Kim
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
| | - Jin Sun Hwang
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
| | - Kyung Bo Noh
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
| | - Sun-Hee Oh
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
| | - Jae-Bong Park
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon 24252, Republic of Korea
| | - Young Joo Shin
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul 07442, Republic of Korea
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11
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Maharjan BR, McLennan SV, Twigg SM, Williams PF. The Effect of TGFβ1 in Adipocyte on Inflammatory and Fibrotic Markers at Different Stages of Adipocyte Differentiation. PATHOPHYSIOLOGY 2022; 29:640-649. [PMID: 36548206 PMCID: PMC9788619 DOI: 10.3390/pathophysiology29040050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
Transforming growth factor beta (TGFβ) is a versatile cytokine. Although a profibrotic role of TGFβ is well established, its effect on tissue inhibitor of metalloproteinase (TIMPs) and inflammatory mediators are incompletely described. This study investigates the profibrotic and pro-inflammatory role of TGFβ1 during adipocyte differentiation. NIH3T3L1 cells were used for the in vitro study and were differentiated by adding a standard differentiation mix either with rosiglitazone (R-Diff) or without (S-Diff). Recombinant TGFβ1 (2 ng/mL) was added to the undifferentiated preadipocyte during the commitment stage and at the terminal differentiation stage. TGFβ1 treatment significantly decreased adiponectin mRNA at both early commitment (>300 fold) and terminal differentiated cells [S-Diff (~33%) or R-Diff (~20%)]. TGFβ1 upregulated collagen VI mRNA and its regulators connective tissue growth factor (CCN2/CTGF), TIMP1 and TIMP3 mRNA levels in undifferentiated preadipocytes and adipocytes at commitment stage. But in the terminal differentiated adipocytes, changes in mRNA and protein of collagen VI and TIMP3 mRNA were not observed despite an increase in CCN2/CTGF, TIMP1 mRNA. Although TGFβ1 upregulated interleukin-6 (IL6) and monocyte chemoattractant protein-1 (MCP1) mRNA at all stages of differentiation, decreased tumor necrosis factor-α (TNFα) mRNA was observed early in adipocyte differentiation. This study highlights the complex role of TGFβ1 on extracellular matrix (ECM) remodeling and inflammatory markers in stimulating both synthetic and inhibitory markers of fibrosis at different stages of adipocyte differentiation.
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Affiliation(s)
- Babu Raja Maharjan
- Greg Brown Diabetes & Endocrinology Laboratory, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
- School of Medicine, Department of Biochemistry, Patan Academy of Health Sciences, Lalitpur 44700, Nepal
- Correspondence: (B.R.M.); (P.F.W.); Tel.: +61-2-8627-1889 (B.R.M. & P.F.W.)
| | - Susan V. McLennan
- Greg Brown Diabetes & Endocrinology Laboratory, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
- New South Wales Health Pathology, Sydney, NSW 2050, Australia
| | - Stephen M. Twigg
- Greg Brown Diabetes & Endocrinology Laboratory, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
- Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW 2006, Australia
| | - Paul F. Williams
- Greg Brown Diabetes & Endocrinology Laboratory, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
- Correspondence: (B.R.M.); (P.F.W.); Tel.: +61-2-8627-1889 (B.R.M. & P.F.W.)
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12
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Kitazawa K, Inotmata T, Shih K, Hughes JWB, Bozza N, Tomioka Y, Numa K, Yokoi N, Campisi J, Dana R, Sotozono C. Impact of aging on the pathophysiology of dry eye disease: A systematic review and meta-analysis. Ocul Surf 2022; 25:108-118. [PMID: 35753664 DOI: 10.1016/j.jtos.2022.06.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 12/01/2022]
Abstract
PURPOSE Dry eye disease (DED) is a common age-related ocular surface disease. However, it is unknown how aging influences the ocular surface microenvironment. This systematic review aims to investigate how the aging process changes the ocular surface microenvironment and impacts the development of DED. METHODS An article search was performed in PubMed, EMBASE, and Web of Science. 44 studies reporting on age-related ocular changes and 14 large epidemiological studies involving the prevalence of DED were identified. 8 out of 14 epidemiological studies were further analyzed with meta-analysis. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting guidelines were followed. Study-specific estimates (impact of aging on the prevalence of DED) were combined using one-group meta-analysis in a random-effects model. RESULTS Meta-analysis revealed the prevalence of DED in the elderly aged 60 years old or older was 5519 of 60107 (9.2%) and the odds ratio of aging compared to younger age was 1.313 (95% confidence interval [CI]; 1.107, 1.557). With increasing age, the integrity of the ocular surface and tear film stability decreased. Various inflammatory cells, including senescent-associated T-cells, infiltrated the ocular surface epithelium, lacrimal gland, and meibomian gland, accompanied by senescence-related changes, including accumulation of 8-OHdG and lipofuscin-like inclusions, increased expression of p53 and apoptosis-related genes, and decreased Ki67 positive cells. CONCLUSIONS The aging process greatly impacts the ocular surface microenvironment, consequently leading to DED.
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Affiliation(s)
- Koji Kitazawa
- Buck Institute for Research on Aging, Novato, CA, 94945, USA; Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, Japan.
| | - Takenori Inotmata
- Juntendo University Graduate School of Medicine, Department of Ophthalmology, Tokyo, Japan; Juntendo University Graduate School of Medicine, Department of Hospital Administration, Tokyo, Japan; Juntendo University Graduate School of Medicine, Department of Digital Medicine, Tokyo, Japan
| | - Kendric Shih
- Li Ka Shing Faculty of Medicine, The University of Hong Kong (HKUMed), Department of Ophthalmology, Hong Kong, China
| | | | - Niha Bozza
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Yasufumi Tomioka
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, Japan
| | - Kohsaku Numa
- Buck Institute for Research on Aging, Novato, CA, 94945, USA; Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, Japan
| | - Norihiko Yokoi
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, Japan
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA, 94945, USA; Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Reza Dana
- Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Chie Sotozono
- Kyoto Prefectural University of Medicine, Department of Ophthalmology, Kyoto, Japan
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Sammad A, Luo H, Hu L, Zhao S, Gong J, Umer S, Khan A, Zhu H, Wang Y. Joint Transcriptome and Metabolome Analysis Prevails the Biological Mechanisms Underlying the Pro-Survival Fight in In Vitro Heat-Stressed Granulosa Cells. BIOLOGY 2022; 11:839. [PMID: 35741360 PMCID: PMC9220676 DOI: 10.3390/biology11060839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 12/12/2022]
Abstract
Previous studies reported the physical, transcriptome, and metabolome changes in in vitro acute heat-stressed (38 °C versus 43 °C for 2 h) bovine granulosa cells. Granulosa cells exhibited transient proliferation senescence, oxidative stress, an increased rate of apoptosis, and a decline in steroidogenic activity. In this study, we performed a joint integration and network analysis of metabolomic and transcriptomic data to further narrow down and elucidate the role of differentially expressed genes, important metabolites, and relevant cellular and metabolic pathways in acute heat-stressed granulosa cells. Among the significant (raw p-value < 0.05) metabolic pathways where metabolites and genes converged, this study found vitamin B6 metabolism, glycine, serine and threonine metabolism, phenylalanine metabolism, arginine biosynthesis, tryptophan metabolism, arginine and proline metabolism, histidine metabolism, and glyoxylate and dicarboxylate metabolism. Important significant convergent biological pathways included ABC transporters and protein digestion and absorption, while functional signaling pathways included cAMP, mTOR, and AMPK signaling pathways together with the ovarian steroidogenesis pathway. Among the cancer pathways, the most important pathway was the central carbon metabolism in cancer. Through multiple analysis queries, progesterone, serotonin, citric acid, pyridoxal, L-lysine, succinic acid, L-glutamine, L-leucine, L-threonine, L-tyrosine, vitamin B6, choline, and CYP1B1, MAOB, VEGFA, WNT11, AOX1, ADCY2, ICAM1, PYGM, SLC2A4, SLC16A3, HSD11B2, and NOS2 appeared to be important enriched metabolites and genes, respectively. These genes, metabolites, and metabolic, cellular, and cell signaling pathways comprehensively elucidate the mechanisms underlying the intricate fight between death and survival in acute heat-stressed bovine granulosa cells and essentially help further our understanding (and will help the future quest) of research in this direction.
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Affiliation(s)
- Abdul Sammad
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China; (A.S.); (H.L.); (L.H.); (A.K.)
| | - Hanpeng Luo
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China; (A.S.); (H.L.); (L.H.); (A.K.)
| | - Lirong Hu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China; (A.S.); (H.L.); (L.H.); (A.K.)
| | - Shanjiang Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.Z.); (J.G.)
| | - Jianfei Gong
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.Z.); (J.G.)
| | - Saqib Umer
- Department of Theriogenology, Faculty of Veterinary Sciences, University of Agriculture, Faisalabad 38040, Pakistan;
| | - Adnan Khan
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China; (A.S.); (H.L.); (L.H.); (A.K.)
| | - Huabin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.Z.); (J.G.)
| | - Yachun Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China; (A.S.); (H.L.); (L.H.); (A.K.)
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14
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Sammad A, Luo H, Hu L, Zhu H, Wang Y. Transcriptome Reveals Granulosa Cells Coping through Redox, Inflammatory and Metabolic Mechanisms under Acute Heat Stress. Cells 2022; 11:1443. [PMID: 35563749 PMCID: PMC9105522 DOI: 10.3390/cells11091443] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 02/07/2023] Open
Abstract
Heat stress affects granulosa cells (GCs) and the ovarian follicular microenvironment, causing poor oocyte developmental competence and fertility. This study aimed to investigate the physical responses and global transcriptomic changes in bovine GCs to acute heat stress (43 °C for 2 h) in vitro. Heat-stressed GCs exhibited transient proliferation senescence and resumed proliferation at 48 h post-stress, while post-stress immediate culture-media change had a relatively positive effect on proliferation resumption. Increased accumulation of reactive oxygen species and apoptosis was observed in the heat-stress group. In spite of the upregulation of inflammatory (CYCS, TLR2, TLR4, IL6, etc.), pro-apoptotic (BAD, BAX, TNFSF9, MAP3K7, TNFRSF6B, FADD, TRADD, RIPK3, etc.) and caspase executioner genes (CASP3, CASP8, CASP9), antioxidants and anti-apoptotic genes (HMOX1, NOS2, CAT, SOD, BCL2L1, GPX4, etc.) were also upregulated in heat-stressed GCs. Progesterone and estrogen hormones, along with steroidogenic gene expression, declined significantly, in spite of the upregulation of genes involved in cholesterol synthesis. Out of 12,385 differentially expressed genes (DEGs), 330 significant DEGs (75 upregulated, 225 downregulated) were subjected to KEGG functional pathway annotation, gene ontology enrichment, STRING network analyses and manual querying of DEGs for meaningful molecular mechanisms. High inflammatory response was found to be responsible for oxidative-stress-mediated apoptosis of GCs and nodes towards the involvement of the NF-κB pathway and repression of the Nrf2 pathway. Downregulation of MDM4, TP53, PIDD1, PARP3, MAPK14 and MYC, and upregulation of STK26, STK33, TGFB2, CDKN1A and CDKN2A, at the interface of the MAPK and p53 signaling pathway, can be attributed to transient cellular senescence and apoptosis in GCs. The background working of the AMPK pathway through upregulation of AKT1, AMPK, SIRT1, PYGM, SLC2A4 and SERBP1 genes, and downregulation of PPARGCIA, IGF2, PPARA, SLC27A3, SLC16A3, TSC1/2, KCNJ2, KCNJ16, etc., evidence the repression of cellular transcriptional activity and energetic homeostasis modifications in response to heat stress. This study presents detailed responses of acute-heat-stressed GCs at physical, transcriptional and pathway levels and presents interesting insights into future studies regarding GC adaptation and their interaction with oocytes and the reproductive system at the ovarian level.
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Affiliation(s)
- Abdul Sammad
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China
| | - Hanpeng Luo
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China
| | - Lirong Hu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China
| | - Huabin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yachun Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, College of Animal Sciences and Technology, China Agricultural University, Beijing 100193, China
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15
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Sun H, Li Z, Fan C, Liu S, Yan K, Huang G, Li S. Slit guidance ligand 2 promotes the inflammatory response of periodontitis through activation of the NF‐κB signaling pathway. J Periodontal Res 2022; 57:578-586. [PMID: 35426130 DOI: 10.1111/jre.12987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/07/2021] [Accepted: 01/26/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Hui Sun
- Department of Periodontology School and Hospital of Stomatology Cheeloo College of Medicine Shandong University Jinan Shandong China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration Jinan Shandong China
- Department of Periodontology The Affiliated Hospital of Qingdao University Qingdao Shandong China
| | - Zhiyuan Li
- Medical Research Center The Affiliated Hospital of Qingdao University Qingdao Shandong China
| | - Chun Fan
- Department of Periodontology The Affiliated Hospital of Qingdao University Qingdao Shandong China
| | - Shuang Liu
- Department of Periodontology School and Hospital of Stomatology Cheeloo College of Medicine Shandong University Jinan Shandong China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration Jinan Shandong China
| | - Kaixian Yan
- Department of Periodontology School and Hospital of Stomatology Cheeloo College of Medicine Shandong University Jinan Shandong China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration Jinan Shandong China
| | - Guoqian Huang
- Department of Oral and Maxillofacial Surgery Jinan Stomatology Hospital Jinan Shandong China
| | - Shu Li
- Department of Periodontology School and Hospital of Stomatology Cheeloo College of Medicine Shandong University Jinan Shandong China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration Jinan Shandong China
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16
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Martínez-Alberquilla I, Gasull X, Pérez-Luna P, Seco-Mera R, Ruiz-Alcocer J, Crooke A. Neutrophils and neutrophil extracellular trap components: Emerging biomarkers and therapeutic targets for age-related eye diseases. Ageing Res Rev 2022; 74:101553. [PMID: 34971794 DOI: 10.1016/j.arr.2021.101553] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/17/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
Age-related eye diseases, including dry eye, glaucoma, age-related macular degeneration, and diabetic retinopathy, represent a major global health issue based on their increasing prevalence and disabling action. Unraveling the molecular mechanisms underlying these diseases will provide novel opportunities to reduce the burden of age-related eye diseases and improve eye health, contributing to sustainable development goals achievement. The impairment of neutrophil extracellular traps formation/degradation processes seems to be one of these mechanisms. These traps formed by a meshwork of DNA and neutrophil cytosolic granule proteins may exacerbate the inflammatory response promoting chronic inflammation, a pivotal cause of age-related diseases. In this review, we describe current findings that suggest the role of neutrophils and their traps in the pathogenesis of the above-mentioned age-related eye diseases. Furthermore, we discuss why these cells and their constituents could be biomarkers and therapeutic targets for dry eye, glaucoma, age-related macular degeneration, and diabetic retinopathy. We also examine the therapeutic potential of some neutrophil function modulators and provide several recommendations for future research in age-related eye diseases.
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Affiliation(s)
- Irene Martínez-Alberquilla
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain; Clinical and Experimental Eye Research Group, UCM 971009, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Xavier Gasull
- Neurophysiology Laboratory, Department of Biomedicine, Medical School, Institute of Neurosciences, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Patricia Pérez-Luna
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Rubén Seco-Mera
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Ruiz-Alcocer
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain; Clinical and Experimental Eye Research Group, UCM 971009, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Almudena Crooke
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain; Clinical and Experimental Eye Research Group, UCM 971009, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain.
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17
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Zhao X, Zhu S, Li J, Long D, Wan M, Tang W. Epigenetic changes in inflammatory genes and the protective effect of cooked rhubarb on pancreatic tissue of rats with chronic alcohol exposure. Biomed Pharmacother 2022; 146:112587. [PMID: 35062061 DOI: 10.1016/j.biopha.2021.112587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic alcohol consumption, which is observed worldwide, can damage pancreatic tissue and promote pancreatitis. Rhubarb is a widely used traditional Chinese herbal medicine for treating pancreatitis in China. However, few pharmacological studies have investigated its epigenetic regulation. In this study, we investigated whether chronic exposure to alcohol can alter inflammatory gene expression and the epigenetic regulation effect of cooked rhubarb in the pancreatic tissue of rats. First, changes in inflammatory cytokine DNA methylation (IL-10, IL-1α, TNF-α, NF-κB and TGF-β) were detected in pancreatic tissue of Sprague-Dawley rats with varying alcohol exposure times (4, 6, 8, or 12 weeks), and then with varying doses of cooked rhubarb treatment (3, 6, or 12 g/day). DNA methylation levels, related RNA concentrations and protein expression of specific inflammatory cytokines, and histopathological score were analysed in pancreatic tissue of Sprague-Dawley rats. The results showed that chronic alcohol exposure (8 weeks) reduced the level of IL-1α DNA methylation and increased its protein expression in acinar cells (P < 0.05). In the acinar cells, the level of IL-10 DNA methylation increased, resulting in a reduction of protein expression (P < 0.05). Simultaneously, chronic alcohol exposure increased the pathological damage to the pancreas (P < 0.05). Finally, cooked rhubarb treatment (3 g/kg/day) effectively alleviated these changes in pancreatic tissue from chronic alcohol exposure (P < 0.05). These results indicate that chronic exposure to alcohol leads to changes in DNA methylation and protein expression of inflammatory genes, and cooked rhubarb may have a protective effect on the pancreatic tissue of rats.
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Affiliation(s)
- Xianlin Zhao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Shifeng Zhu
- Zhejiang Provincial Tongde Hospital, Hangzhou, Zhejiang, China.
| | - Juan Li
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Dan Long
- Key Laboratory of Transplant Engineering and Immunology, Sichuan University, Chengdu, Sichuan, China.
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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18
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Roger I, Milara J, Belhadj N, Cortijo J. Senescence Alterations in Pulmonary Hypertension. Cells 2021; 10:3456. [PMID: 34943963 PMCID: PMC8700581 DOI: 10.3390/cells10123456] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 01/10/2023] Open
Abstract
Cellular senescence is the arrest of normal cell division and is commonly associated with aging. The interest in the role of cellular senescence in lung diseases derives from the observation of markers of senescence in chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (IPF), and pulmonary hypertension (PH). Accumulation of senescent cells and the senescence-associated secretory phenotype in the lung of aged patients may lead to mild persistent inflammation, which results in tissue damage. Oxidative stress due to environmental exposures such as cigarette smoke also promotes cellular senescence, together with additional forms of cellular stress such as mitochondrial dysfunction and endoplasmic reticulum stress. Growing recent evidence indicate that senescent cell phenotypes are observed in pulmonary artery smooth muscle cells and endothelial cells of patients with PH, contributing to pulmonary artery remodeling and PH development. In this review, we analyze the role of different senescence cell phenotypes contributing to the pulmonary artery remodeling process in different PH clinical entities. Different molecular pathway activation and cellular functions derived from senescence activation will be analyzed and discussed as promising targets to develop future senotherapies as promising treatments to attenuate pulmonary artery remodeling in PH.
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Affiliation(s)
- Inés Roger
- Centro de Investigación en Red Enfermedades Respiratorias CIBERES, Health Institute Carlos III, 28029 Valencia, Spain;
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Javier Milara
- Centro de Investigación en Red Enfermedades Respiratorias CIBERES, Health Institute Carlos III, 28029 Valencia, Spain;
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
- Pharmacy Unit, University General Hospital Consortium of Valencia, 46014 Valencia, Spain
| | - Nada Belhadj
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Julio Cortijo
- Centro de Investigación en Red Enfermedades Respiratorias CIBERES, Health Institute Carlos III, 28029 Valencia, Spain;
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
- Research and Teaching Unit, University General Hospital Consortium, 46014 Valencia, Spain
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19
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Assembly of Cytoplasmic Stress Granules in Placentas in Women with Preeclampsia. Reprod Sci 2021; 28:2869-2877. [PMID: 34101146 DOI: 10.1007/s43032-021-00592-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Inflammation is a well-recognized factor associated with preeclampsia (PE). Stress granules (SGs) have been shown to play an important role in regulating inflammation and immune responses. However, whether SGs are involved in the pathogenesis of PE has not been studied. Here, we evaluated the expression of SG components in placenta of pregnancies with PE. Placental samples or serum were collected from PE patients (n = 31) or healthy age-matched pregnancy (n = 17). mRNA expressions of SG-associated genes in placenta from PE or normal pregnancies were detected by real-time quantitative PCR, and protein expressions of HuR and G3BP were detected using western blot. Immunofluorescence staining was performed to evaluate SG components expression in placentas or 10% serum treated HTR-8/Svneo cells using antibodies against HuR and G3BP. Our study showed higher levels of elavl1, lsm2, lsm4, and ago1 mRNA expression and SG marker proteins expression in placental homogenates of PE patients. HuR/G3BP-positive SG structure was further observed in placental villi of PE by immunofluorescence assay. Besides, serum from PE patients could induce SG aggregation in human trophoblast cell line HTR-8/Svneo cells, suggesting the involvement of SGs in the development of PE.
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20
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Zhang Q, Zhang J, Gong M, Pan R, Liu Y, Tao L, He K. Transcriptome Analysis of the Gene Expression Profiles Associated with Fungal Keratitis in Mice Based on RNA-Seq. Invest Ophthalmol Vis Sci 2021; 61:32. [PMID: 32539135 PMCID: PMC7415296 DOI: 10.1167/iovs.61.6.32] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Purpose Fungal keratitis (FK) is an eye disease that can lead to blindness and has a high incidence worldwide. At present, there is no effective treatment for this disease. There are innate immune response mechanisms that protect against fungal infections. One example is C-type lectin receptors (CLRs), which can identify fungal invaders and trigger signal transduction pathways and cellular responses to eliminate pathogens. However, previous studies have focused mostly on single-receptor factors, and a systematic analysis of the genetic factors underlying the pathogenesis of FK has not been conducted. This study aimed to investigate the molecular mechanisms of FK in terms of genomics and to further elucidate its pathogenesis. Methods We performed a transcriptome analysis of a mouse model of FK using RNA sequencing to obtain the relevant gene expression profiles and to identify differentially expressed genes, signaling pathways, and regulatory networks of the key genetic factors in the pathogenesis of murine FK. Results Several genes that are significantly associated with FK and serve as markers of FK, such as the inflammatory cytokine genes IL1B, IL6, IL10, IL23, and TNF, were identified. The mRNA and protein expression patterns of IL-1β, IL-6, and TNF-α in the corneas of mice with FK were validated by quantitative RT-PCR and Luminex multiplex assay technology. The Wnt, cGMP–PKG, and Hippo signaling pathways were significantly enriched during fungal infection of mouse corneas. Conclusions Our study may help to elucidate the mechanisms of FK pathogenesis and to identify additional candidate drug targets for the treatment of FK.
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21
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Chen Y, Shen J. Mucosal immunity and tRNA, tRF, and tiRNA. J Mol Med (Berl) 2020; 99:47-56. [PMID: 33200232 DOI: 10.1007/s00109-020-02008-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/15/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022]
Abstract
Mucosal immunity has crucial roles in human diseases such as respiratory tract infection, inflammatory bowel diseases (IBD), and colorectal cancer (CRC). Recent studies suggest that the mononuclear phagocyte system, cancer cells, bacteria, and viruses induce the mucosal immune reaction by various pathways, and can be major factors in the pathogenesis of these diseases. Transfer RNA (tRNA) and its fragments, including tRNA-derived RNA fragments (tRFs) and tRNA-derived stress-induced RNAs (tiRNAs), have emerged as a hot topic in recent years. They not only are verified as essential for transcription and translation but also play roles in cellular homeostasis and functions, such as cell metastasis, proliferation, and apoptosis. However, the specific relationship between their biological regulation and mucosal immunity remains unclear to date. In the present review, we carry out a comprehensive discussion on the specific roles of tRNA, tRFs, and tiRNAs relevant to mucosal immunity and related diseases.
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Affiliation(s)
- Yueying Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, 160# Pu Jian Ave, Shanghai, 200127, China
- Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160# Pu Jian Ave, Shanghai, 200127, China
- Shanghai Institute of Digestive Disease, 160# Pu Jian Ave, Shanghai, 200127, China
| | - Jun Shen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, 160# Pu Jian Ave, Shanghai, 200127, China.
- Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160# Pu Jian Ave, Shanghai, 200127, China.
- Shanghai Institute of Digestive Disease, 160# Pu Jian Ave, Shanghai, 200127, China.
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22
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You W, Hong Y, He H, Huang X, Tao W, Liang X, Zhang Y, Li X. TGF-β mediates aortic smooth muscle cell senescence in Marfan syndrome. Aging (Albany NY) 2020; 11:3574-3584. [PMID: 31147528 PMCID: PMC6594817 DOI: 10.18632/aging.101998] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 05/24/2019] [Indexed: 12/20/2022]
Abstract
Formation of aortic aneurysms as a consequence of augmented transforming growth factor β (TGF-β) signaling and vascular smooth muscle cell (VSMC) dysfunction is a potentially lethal complication of Marfan syndrome (MFS). Here, we examined VSMC senescence in patients with MFS and explored the potential mechanisms that link VSMC senescence and TGF-β. Tissue was harvested from the ascending aorta of control donors and MFS patients, and VSMCs were isolated. Senescence-associated β-galactosidase (SA-β-gal) activity and expression of senescence-related proteins (p53, p21) were significantly higher in aneurysmal tissue from MFS patients than in healthy aortic tissue from control donors. Compared to control-VSMCs, MFS-VSMCs were larger with higher levels of both SA-β-gal activity and mitochondrial reactive oxygen species (ROS). In addition, TGF-β1 levels were much higher in MFS- than control-VSMCs. TGF-β1 induced VSMC senescence through excessive ROS generation. This effect was suppressed by Mito-tempo, a mitochondria-targeted antioxidant, or SC-514, a NF-κB inhibitor. This suggests TGF-β1 induces VSMC senescence through ROS-mediated activation of NF-κB signaling. It thus appears that a TGF-β1/ROS/NF-κB axis may mediate VSMC senescence and aneurysm formation in MFS patients. This finding could serve as the basis for a novel strategy for treating aortic aneurysm in MFS.
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Affiliation(s)
- Wei You
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.,Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Yimei Hong
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Haiwei He
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Xiaoran Huang
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Wuyuan Tao
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Xiaoting Liang
- Clinical Translational Medical Research Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Yuelin Zhang
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Xin Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.,Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
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23
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Yoshimatsu Y, Kimuro S, Pauty J, Takagaki K, Nomiyama S, Inagawa A, Maeda K, Podyma-Inoue KA, Kajiya K, Matsunaga YT, Watabe T. TGF-beta and TNF-alpha cooperatively induce mesenchymal transition of lymphatic endothelial cells via activation of Activin signals. PLoS One 2020; 15:e0232356. [PMID: 32357159 PMCID: PMC7194440 DOI: 10.1371/journal.pone.0232356] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 04/13/2020] [Indexed: 12/12/2022] Open
Abstract
Lymphatic systems play important roles in the maintenance of fluid homeostasis and undergo anatomical and physiological changes during inflammation and aging. While lymphatic endothelial cells (LECs) undergo mesenchymal transition in response to transforming growth factor-β (TGF-β), the molecular mechanisms underlying endothelial-to-mesenchymal transition (EndMT) of LECs remain largely unknown. In this study, we examined the effect of TGF-β2 and tumor necrosis factor-α (TNF-α), an inflammatory cytokine, on EndMT using human skin-derived lymphatic endothelial cells (HDLECs). TGF-β2-treated HDLECs showed increased expression of SM22α, a mesenchymal cell marker accompanied by increased cell motility and vascular permeability, suggesting HDLECs to undergo EndMT. Our data also revealed that TNF-α could enhance TGF-β2-induced EndMT of HDLECs. Furthermore, both cytokines induced the production of Activin A while decreasing the expression of its inhibitory molecule Follistatin, and thus enhancing EndMT. Finally, we demonstrated that human dermal lymphatic vessels underwent EndMT during aging, characterized by double immunostaining for LYVE1 and SM22α. These results suggest that both TGF-β and TNF-α signals play a central role in EndMT of LECs and could be potential targets for senile edema.
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Affiliation(s)
- Yasuhiro Yoshimatsu
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
- Division of Pharmacology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Shiori Kimuro
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Joris Pauty
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | | | | | - Akihiko Inagawa
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kentaro Maeda
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Katarzyna A. Podyma-Inoue
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | | | - Tetsuro Watabe
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
- * E-mail:
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24
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Li Z, Liu T, Ma J, Guo Q, Ma L, Lv Q, Jiang Y, Wei C, Zhang J. TGF-β induces corneal endothelial senescence via increase of mitochondrial reactive oxygen species in chronic corneal allograft failure. Aging (Albany NY) 2019; 10:3474-3485. [PMID: 30482886 PMCID: PMC6286827 DOI: 10.18632/aging.101659] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022]
Abstract
The corneal endothelium (CE) dysfunction impairs optical transparency and leads to corneal allograft failure. Morphologically, CE cells are characterized by premature senescence at the late stage of corneal graft. However, the detailed molecular mechanisms are largely unknown. Here we found that transforming growth factor-β (TGF-β) is elevated in the CE of late graft failure. In addition, senescence-associated gene p21 and p16 are increased as well, which is consistent with their elevation upon TGF-β treatment in human corneal endothelial cell B4G12. Furthermore, TGF-β treatment leads to high positive ratio of SA-β-gal, indicating B4G12 cells undergo cellular senescence. Mechanistically, we demonstrated that TGF-β could induce mitochondrial ROS (mtROS) production and mtROS scavenger could rescue CE cell senescence upon TGF-β treatment. Our study provides new evidence that elevated TGF-β plays a crucial role in the CE cell senescence and loss in chronic corneal graft failure, which could be potential targets for clinical treatment.
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Affiliation(s)
- Zhiyuan Li
- Key Laboratory, Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Ting Liu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Junwei Ma
- Key Laboratory, Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qie Guo
- Department of Clinical Pharmacy, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liang Ma
- Department of Child Health Care, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qiulan Lv
- Key Laboratory, Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Jiang
- Key Laboratory, Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chao Wei
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Jisheng Zhang
- Key Laboratory, Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
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25
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Maity S, Muhamed J, Sarikhani M, Kumar S, Ahamed F, Spurthi KM, Ravi V, Jain A, Khan D, Arathi BP, Desingu PA, Sundaresan NR. Sirtuin 6 deficiency transcriptionally up-regulates TGF-β signaling and induces fibrosis in mice. J Biol Chem 2019; 295:415-434. [PMID: 31744885 DOI: 10.1074/jbc.ra118.007212] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 11/07/2019] [Indexed: 12/16/2022] Open
Abstract
Caloric restriction has been associated with increased life span and reduced aging-related disorders and reduces fibrosis in several diseases. Fibrosis is characterized by deposition of excess fibrous material in tissues and organs and is caused by aging, chronic stress, injury, or disease. Myofibroblasts are fibroblast-like cells that secrete high levels of extracellular matrix proteins, resulting in fibrosis. Histological studies have identified many-fold increases of myofibroblasts in aged organs where myofibroblasts are constantly generated from resident tissue fibroblasts and other cell types. However, it remains unclear how aging increases the generation of myofibroblasts. Here, using mouse models and biochemical assays, we show that sirtuin 6 (SIRT6) deficiency plays a major role in aging-associated transformation of fibroblasts to myofibroblasts, resulting in tissue fibrosis. Our findings suggest that SIRT6-deficient fibroblasts transform spontaneously to myofibroblasts through hyperactivation of transforming growth factor β (TGF-β) signaling in a cell-autonomous manner. Importantly, we noted that SIRT6 haploinsufficiency is sufficient for enhancing myofibroblast generation, leading to multiorgan fibrosis and cardiac dysfunction in mice during aging. Mechanistically, SIRT6 bound to and repressed the expression of key TGF-β signaling genes by deacetylating SMAD family member 3 (SMAD3) and Lys-9 and Lys-56 in histone 3. SIRT6 binding to the promoters of genes in the TGF-β signaling pathway decreased significantly with age and was accompanied by increased binding of SMAD3 to these promoters. Our findings reveal that SIRT6 may be a potential candidate for modulating TGF-β signaling to reduce multiorgan fibrosis during aging and fibrosis-associated diseases.
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Affiliation(s)
- Sangeeta Maity
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Jaseer Muhamed
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India; Indian Council of Medical Research (ICMR)-Regional Occupational Health Centre (Southern), Bengaluru, Karnataka 562110, India
| | - Mohsen Sarikhani
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Shweta Kumar
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Faiz Ahamed
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Kondapalli Mrudula Spurthi
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Venkatraman Ravi
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Aditi Jain
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Danish Khan
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Bangalore Prabhashankar Arathi
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Perumal Arumugam Desingu
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Nagalingam R Sundaresan
- Lab #SB-02, Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India.
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26
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Fan C, Ji Q, Zhang C, Xu S, Sun H, Li Z. TGF‑β induces periodontal ligament stem cell senescence through increase of ROS production. Mol Med Rep 2019; 20:3123-3130. [PMID: 31432132 PMCID: PMC6755147 DOI: 10.3892/mmr.2019.10580] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/25/2019] [Indexed: 12/21/2022] Open
Abstract
Periodontal ligament stem cells (PDLSCs) are vital for the regeneration of periodontal tissue. Transforming growth factor (TGF) β1, a potent stimulator of tissue regeneration, is extensive and abundant in the bone matrix. However, the effect of TGF‑β1 in periodontal differentiation remains to be elucidated. The present study aimed to evaluate the effect of TGF‑β1 on human PDLSCs. PDLSCs were isolated using CD146 microbeads, and characterized by flow cytometry. The present study demonstrated that treatment with TGF‑β1 induced PDLSC senescence, characterized by increases in senescence‑associated beta‑galactosidase activity and elevation of both p16 and p21 expression. Furthermore, TGF‑β1 treatment demonstrated the capacity to induce the production of reactive oxygen species (ROS). Of note, addition of a ROS scavenger successfully rescued the TGF‑β1‑induced PDLSC senescence. Thus, the present results indicated that TGF‑β1 may serve a vital role in PDLSC senescence, and thus represent a potential target involved in the fabrication and formation of hard tissue for clinical treatment.
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Affiliation(s)
- Chun Fan
- Department of Periodontology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
| | - Qiuxia Ji
- Department of Periodontology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
| | - Chunyang Zhang
- Department of Periodontology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
| | - Shuo Xu
- Department of Periodontology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
| | - Hui Sun
- Department of Periodontology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
| | - Zhiyuan Li
- Key Laboratory, Department of Otolaryngology‑Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266555, P.R. China
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27
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van der Feen DE, Berger RMF, Bartelds B. Converging Paths of Pulmonary Arterial Hypertension and Cellular Senescence. Am J Respir Cell Mol Biol 2019; 61:11-20. [DOI: 10.1165/rcmb.2018-0329tr] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Diederik E. van der Feen
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Rolf M. F. Berger
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Beatrijs Bartelds
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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28
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Wei X, Luo D, Yan Y, Yu H, Sun L, Wang C, Song F, Ge H, Qian H, Li X, Tang X, Liu P. Kojic acid inhibits senescence of human corneal endothelial cells via NF-κB and p21 signaling pathways. Exp Eye Res 2019; 180:174-183. [DOI: 10.1016/j.exer.2018.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/18/2018] [Accepted: 12/27/2018] [Indexed: 12/13/2022]
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29
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Wei C, Wang Y, Ma L, Wang X, Chi H, Zhang S, Liu T, Li Z, Xiang D, Dong Y, Wu X, Shi W, Gao H. Rapamycin Nano-Micelle Ophthalmic Solution Reduces Corneal Allograft Rejection by Potentiating Myeloid-Derived Suppressor Cells' Function. Front Immunol 2018; 9:2283. [PMID: 30349533 PMCID: PMC6186809 DOI: 10.3389/fimmu.2018.02283] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 09/14/2018] [Indexed: 12/12/2022] Open
Abstract
Allograft rejection is the major cause of corneal allograft failure. Rapamycin (RAPA) has been reported as an effective and novel immunosuppressive agent for patients undergoing corneal transplantation. However, its high water insolubility and low bioavailability have strongly constrained its clinical application. In this study, we successfully developed a RAPA nano-micelle ophthalmic solution and found that corneal allograft survival in recipients treated with RAPA nano-micelle ophthalmic solution was significantly prolonged for more than 2 months, with less inflammatory infiltration, decreased production of pro-inflammatory factors, and elevated recruitment of myeloid-derived suppressor cells (MDSCs). MDSCs from mice treated with RAPA nano-micelle ophthalmic solution could significantly inhibit the proliferation of CD4+T cells through increased expressions of inducible nitric oxidase (iNOS) and arginase-1 (Arg-1). The activity blockade of Arg-1 and iNOS pharmacologically reversed their immunosuppressive ability. Moreover, the effects of RAPA were antagonized by the administration of anti-Gr-1 antibody or by inhibiting the activity of iNOS pharmacologically. In addition, RAPA nano-micelle also effectively alleviated allograft rejection in high-risk rabbit penetrating keratoplasty (PKP) models with corneal vascularization. Collectively, our results demonstrate that RAPA nano-micelle ophthalmic solution could improve the immunosuppressive activity of MDSCs through elevated expression of Arg-1 and iNOS, which highlights the possible therapeutic applications of RAPA against corneal allograft rejection.
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Affiliation(s)
- Chao Wei
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Yuexin Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Li Ma
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Xin Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Hao Chi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China.,School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China
| | - Sai Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao University Medical College, Qingdao, China
| | - Ting Liu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Zhiyuan Li
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Demeng Xiang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Yanling Dong
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Xianggen Wu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China.,Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Weiyun Shi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Hua Gao
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
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30
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Gao P, Wu W, Ye J, Lu YW, Adam AP, Singer HA, Long X. Transforming growth factor β1 suppresses proinflammatory gene program independent of its regulation on vascular smooth muscle differentiation and autophagy. Cell Signal 2018; 50:160-170. [PMID: 30006123 DOI: 10.1016/j.cellsig.2018.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/19/2018] [Accepted: 07/09/2018] [Indexed: 01/01/2023]
Abstract
Transforming growth factor β (TGFβ) signaling plays crucial roles in maintaining vascular integrity and homeostasis, and is established as a strong activator of vascular smooth muscle cell (VSMC) differentiation. Chronic inflammation is a hallmark of various vascular diseases. Although TGFβ signaling has been suggested to be protective against inflammatory aortic aneurysm progression, its exact effects on VSMC inflammatory process and the underlying mechanisms are not fully unraveled. Here we revealed that TGFβ1 suppressed the expression of a broad array of proinflammatory genes while potently induced the expression of contractile genes in cultured primary human coronary artery SMCs (HCASMCs). The regulation of TGFβ1 on VSMC contractile and proinflammatory gene programs appeared to occur in parallel and both processes were through a SMAD4-dependent canonical pathway. We also showed evidence that the suppression of TGFβ1 on VSMC proinflammatory genes was mediated, at least partially through the blockade of signal transducer and activator of transcription 3 (STAT3) and NF-κB pathways. Interestingly, our RNA-seq data also revealed that TGFβ1 suppressed gene expression of a battery of autophagy mediators, which was validated by western blot for the conversion of microtubule-associated protein light chain 3 (LC3) and by immunofluo-rescence staining for LC3 puncta. However, impairment of VSMC autophagy by ATG5 deletion failed to rescue TGFβ1 influence on both VSMC contractile and proinflammatory gene programs, suggesting that TGFβ1-regulated VSMC differentiation and inflammation are not attributed to TGFβ1 suppression on autophagy. In summary, our results demonstrated an important role of TGFβ signaling in suppressing proinflammatory gene program in cultured primary human VSMCs via the blockade on STAT3 and NF-κB pathway, therefore providing novel insights into the mechanisms underlying the protective role of TGFβ signaling in vascular diseases.
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Affiliation(s)
- Ping Gao
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States
| | - Wen Wu
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States
| | - Jiemei Ye
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States
| | - Yao Wei Lu
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States
| | - Alejandro Pablo Adam
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States; Department of Ophthalmology, Albany Medical College, Albany, NY, United States
| | - Harold A Singer
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States
| | - Xiaochun Long
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, United States.
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31
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Schottler J, Randoll N, Lucius R, Caliebe A, Roider J, Klettner A. Long-term treatment with anti-VEGF does not induce cell aging in primary retinal pigment epithelium. Exp Eye Res 2018. [DOI: 10.1016/j.exer.2018.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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32
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Silva VRR, Katashima CK, Lenhare L, Silva CGB, Morari J, Camargo RL, Velloso LA, Saad MA, da Silva ASR, Pauli JR, Ropelle ER. Chronic exercise reduces hypothalamic transforming growth factor-β1 in middle-aged obese mice. Aging (Albany NY) 2018; 9:1926-1940. [PMID: 28854149 PMCID: PMC5611986 DOI: 10.18632/aging.101281] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 08/25/2017] [Indexed: 12/23/2022]
Abstract
Obesity and aging are associated with hypothalamic inflammation, hyperphagia and abnormalities in the thermogenesis control. It has been demonstrated that the association between aging and obesity induces hypothalamic inflammation and metabolic disorders, at least in part, through the atypical hypothalamic transforming growth factor-β (TGF-β1). Physical exercise has been used to modulate several metabolic parameters. Thus, the aim of this study was to evaluate the impact of chronic exercise on TGF-β1 expression in the hypothalamus of Middle-Aged mice submitted to a one year of high-fat diet (HFD) treatment. We observed that long-term of HFD-feeding induced hypothalamic TGF-β1 accumulation, potentiated the hypothalamic inflammation, body weight gain and defective thermogenesis of Middle-Aged mice when compared to Middle-Aged animals fed on chow diet. As expected, chronic exercise induced negative energy balance, reduced food consumption and increasing the energy expenditure, which promotes body weight loss. Interestingly, exercise training reduced the TGF-β1 expression and IkB-α ser32 phosphorylation in the hypothalamus of Middle-Aged obese mice. Taken together our study demonstrated that chronic exercise suppressed the TGF-β1/IkB-α axis in the hypothalamus and improved the energy homeostasis in an animal model of obesity-associated to aging.
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Affiliation(s)
- Vagner R R Silva
- School of Applied Sciences, University of Campinas, Limeira, SP, Brazil.,Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Carlos K Katashima
- Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Luciene Lenhare
- School of Applied Sciences, University of Campinas, Limeira, SP, Brazil.,Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Carla G B Silva
- Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Joseane Morari
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas, 1308-970, Brazil
| | - Rafael L Camargo
- Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Licio A Velloso
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas, 1308-970, Brazil
| | - Mario A Saad
- Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil
| | - Adelino S R da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, USP, School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Jose Rodrigo Pauli
- School of Applied Sciences, University of Campinas, Limeira, SP, Brazil.,CEPECE - Research Center of Sport Sciences, School of Applied Sciences, University of Campinas, Limeira, SP, Brazil
| | - Eduardo Rochete Ropelle
- School of Applied Sciences, University of Campinas, Limeira, SP, Brazil.,Department of Internal Medicine, University of Campinas, Campinas, SP, Brazil.,CEPECE - Research Center of Sport Sciences, School of Applied Sciences, University of Campinas, Limeira, SP, Brazil
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Abbadie C, Pluquet O, Pourtier A. Epithelial cell senescence: an adaptive response to pre-carcinogenic stresses? Cell Mol Life Sci 2017; 74:4471-4509. [PMID: 28707011 PMCID: PMC11107641 DOI: 10.1007/s00018-017-2587-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/27/2017] [Accepted: 07/06/2017] [Indexed: 01/01/2023]
Abstract
Senescence is a cell state occurring in vitro and in vivo after successive replication cycles and/or upon exposition to various stressors. It is characterized by a strong cell cycle arrest associated with several molecular, metabolic and morphologic changes. The accumulation of senescent cells in tissues and organs with time plays a role in organismal aging and in several age-associated disorders and pathologies. Moreover, several therapeutic interventions are able to prematurely induce senescence. It is, therefore, tremendously important to characterize in-depth, the mechanisms by which senescence is induced, as well as the precise properties of senescent cells. For historical reasons, senescence is often studied with fibroblast models. Other cell types, however, much more relevant regarding the structure and function of vital organs and/or regarding pathologies, are regrettably often neglected. In this article, we will clarify what is known on senescence of epithelial cells and highlight what distinguishes it from, and what makes it like, replicative senescence of fibroblasts taken as a standard.
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Affiliation(s)
- Corinne Abbadie
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France.
| | - Olivier Pluquet
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France
| | - Albin Pourtier
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France
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Zang J, Sha M, Zhang C, Ye J, Zhang K, Gao J. Senescent hepatocyte secretion of matrix metalloproteinases is regulated by nuclear factor-κB signaling. Life Sci 2017; 191:205-210. [PMID: 29054454 DOI: 10.1016/j.lfs.2017.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/08/2017] [Accepted: 10/17/2017] [Indexed: 02/07/2023]
Abstract
AIMS Cellular senescence and matrix metalloproteinases (MMPs) play an important role in liver diseases. The source and regulating factors of MMPs in senescent hepatocytes are not known. We investigated whether senescent hepatocytes secreted MMPs and if this was regulated by nuclear factor (NF)-κB. MATERIALS AND METHODS The TGF-α transgenic mouse hepatocyte line AML12 was treated with H2O2 to induce senescence. NF-κB signaling was examined by Western blotting and luciferase reporter assays. Quantitative reverse transcription polymerase chain reaction was used to evaluated expression of MMP-2, -9 and -13. KEY FINDINGS AML12 cells treated with H2O2 showed the characteristic morphology of senescence. The activity of NF-κB and expression of MMP-2, -9 and -13 were increased in senescent AML12 cells. The NF-κB inhibitor BAY 11-7082 decreased the levels of MMPs. SIGNIFICANCE These results suggest that senescent hepatocytes are involved in the pathology of liver diseases through remodeling the extracellular matrix.
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Affiliation(s)
- Jinfeng Zang
- Department of Hepatobiliary Surgery, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China.
| | - Min Sha
- Central Laboratory, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China
| | - Chi Zhang
- Department of Hepatobiliary Surgery, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China
| | - Jun Ye
- Central Laboratory, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China
| | - Kezhi Zhang
- Department of Hepatobiliary Surgery, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China
| | - Junye Gao
- Department of Hepatobiliary Surgery, Taizhou People's Hospital, The Fifth Affiliated Hospital of Medical School of Nantong University, China
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Furuya S, Endo K, Takahashi A, Miyazawa K, Saitoh M. Snail suppresses cellular senescence and promotes fibroblast-led cancer cell invasion. FEBS Open Bio 2017; 7:1586-1597. [PMID: 28979845 PMCID: PMC5623692 DOI: 10.1002/2211-5463.12300] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/19/2017] [Accepted: 08/07/2017] [Indexed: 01/06/2023] Open
Abstract
Snail, a zinc finger transcription factor, induces an epithelial-mesenchymal transition (EMT) in various cancer and epithelial cells. We investigated the function of Snail (SNAI1) by downregulating its expression with short interfering RNA (siRNA). Suppression of Snail expression induced cellular senescence in several cancer cells and in normal fibroblast IMR90 cells. Cancer progression is facilitated by fibroblasts, so-called fibroblast-led cancer cell invasion. Snail-silenced cancer cells exhibited reduced motility, which was further decreased by cocultivation with Snail-silenced IMR90 cells. Our data suggest that cell motility and cellular senescence, which are regulated by Snail in cancer cells and fibroblasts, modulate fibroblast-led cancer cell invasion. Therefore, we propose that local suppression of Snail in cancer and the cancer microenvironment represents a potent therapeutic strategy.
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Affiliation(s)
- Satoshi Furuya
- Department of Biochemistry Interdisciplinary Graduate School of Medicine University of Yamanashi Japan.,Research Training Program for Undergraduates Interdisciplinary Graduate School of Medicine University of Yamanashi Japan
| | - Kaori Endo
- Department of Biochemistry Interdisciplinary Graduate School of Medicine University of Yamanashi Japan
| | - Akiko Takahashi
- Division of Cancer Biology The Cancer Institute Japanese Foundation for Cancer Research Tokyo Japan
| | - Keiji Miyazawa
- Department of Biochemistry Interdisciplinary Graduate School of Medicine University of Yamanashi Japan
| | - Masao Saitoh
- Department of Biochemistry Interdisciplinary Graduate School of Medicine University of Yamanashi Japan.,Center for Medical Education and Sciences Interdisciplinary Graduate School of Medicine University of Yamanashi Japan
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