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Cheng Z, Gan W, Xiang Q, Zhao K, Gao H, Chen Y, Shi P, Zhang A, Li G, Song Y, Feng X, Yang C, Zhang Y. Impaired degradation of PLCG1 by chaperone-mediated autophagy promotes cellular senescence and intervertebral disc degeneration. Autophagy 2024. [PMID: 39212196 DOI: 10.1080/15548627.2024.2395797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 08/18/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Defects in chaperone-mediated autophagy (CMA) are associated with cellular senescence, but the mechanism remains poorly understood. Here, we found that CMA inhibition induced cellular senescence in a calcium-dependent manner and identified its role in TNF-induced senescence of nucleus pulposus cells (NPC) and intervertebral disc degeneration. Based on structural and functional proteomic screens, PLCG1 (phospholipase C gamma 1) was predicted as a potential substrate for CMA deficiency to affect calcium homeostasis. We further confirmed that PLCG1 was a key mediator of CMA in the regulation of intracellular calcium flux. Aberrant accumulation of PLCG1 caused by CMA blockage resulted in calcium overload, thereby inducing NPC senescence. Immunoassays on human specimens showed that reduced LAMP2A, the rate-limiting protein of CMA, or increased PLCG1 was associated with disc senescence, and the TNF-induced disc degeneration in rats was inhibited by overexpression of Lamp2a or knockdown of Plcg1. Because CMA dysregulation, calcium overload, and cellular senescence are common features of disc degeneration and other age-related degenerative diseases, the discovery of actionable molecular targets that can link these perturbations may have therapeutic value.
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Affiliation(s)
- Zhangrong Cheng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weikang Gan
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Xiang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Kangcheng Zhao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haiyang Gao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pengzhi Shi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anran Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gaocai Li
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Song
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobo Feng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cao Yang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukun Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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D’Alessio A. Unraveling the Cave: A Seventy-Year Journey into the Caveolar Network, Cellular Signaling, and Human Disease. Cells 2023; 12:2680. [PMID: 38067108 PMCID: PMC10705299 DOI: 10.3390/cells12232680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In the mid-1950s, a groundbreaking discovery revealed the fascinating presence of caveolae, referred to as flask-shaped invaginations of the plasma membrane, sparking renewed excitement in the field of cell biology. Caveolae are small, flask-shaped invaginations in the cell membrane that play crucial roles in diverse cellular processes, including endocytosis, lipid homeostasis, and signal transduction. The structural stability and functionality of these specialized membrane microdomains are attributed to the coordinated activity of scaffolding proteins, including caveolins and cavins. While caveolae and caveolins have been long appreciated for their integral roles in cellular physiology, the accumulating scientific evidence throughout the years reaffirms their association with a broad spectrum of human disorders. This review article aims to offer a thorough account of the historical advancements in caveolae research, spanning from their initial discovery to the recognition of caveolin family proteins and their intricate contributions to cellular functions. Furthermore, it will examine the consequences of a dysfunctional caveolar network in the development of human diseases.
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Affiliation(s)
- Alessio D’Alessio
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “Agostino Gemelli”, IRCCS, 00168 Rome, Italy
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3
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Zhang L, Guan Q, Wang Z, Feng J, Zou J, Gao B. Consequences of Aging on Bone. Aging Dis 2023:AD.2023.1115. [PMID: 38029404 DOI: 10.14336/ad.2023.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
With the aging of the global population, the incidence of musculoskeletal diseases has been increasing, seriously affecting people's health. As people age, the microenvironment within skeleton favors bone resorption and inhibits bone formation, accompanied by bone marrow fat accumulation and multiple cellular senescence. Specifically, skeletal stem/stromal cells (SSCs) during aging tend to undergo adipogenesis rather than osteogenesis. Meanwhile, osteoblasts, as well as osteocytes, showed increased apoptosis, decreased quantity, and multiple functional limitations including impaired mechanical sensing, intercellular modulation, and exosome secretion. Also, the bone resorption function of macrophage-lineage cells (including osteoclasts and preosteoclasts) was significantly enhanced, as well as impaired vascularization and innervation. In this study, we systematically reviewed the effect of aging on bone and the within microenvironment (including skeletal cells as well as their intracellular structure variations, vascular structures, innervation, marrow fat distribution, and lymphatic system) caused by aging, and mechanisms of osteoimmune regulation of the bone environment in the aging state, and the causal relationship with multiple musculoskeletal diseases in addition with their potential therapeutic strategy.
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Affiliation(s)
- Lingli Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Qiao Guan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Zhikun Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jie Feng
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jun Zou
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Bo Gao
- Department of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
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4
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Takamura N, Yamaguchi Y. Involvement of caveolin-1 in skin diseases. Front Immunol 2022; 13:1035451. [PMID: 36532050 PMCID: PMC9748611 DOI: 10.3389/fimmu.2022.1035451] [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: 09/02/2022] [Accepted: 10/17/2022] [Indexed: 12/02/2022] Open
Abstract
The skin is the outermost layer and largest organ in the human body. Since the skin interfaces with the environment, it has a variety of roles, including providing a protective barrier against external factors, regulating body temperature, and retaining water in the body. It is also involved in the immune system, interacting with immune cells residing in the dermis. Caveolin-1 (CAV-1) is essential for caveolae formation and has multiple functions including endocytosis, lipid homeostasis, and signal transduction. CAV-1 is known to interact with a variety of signaling molecules and receptors and may influence cell proliferation and migration. Several skin-related disorders, especially those of the inflammatory or hyperproliferative type such as skin cancers, psoriasis, fibrosis, and wound healing, are reported to be associated with aberrant CAV-1 expression. In this review, we have explored CAV-1 involvement in skin physiology and skin diseases.
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Lee S, Jung Park M, Joo Lee H, Kil Joo J, Soo Suh D, Un Choi K, Hyung Kim K, Chul Kim S. Decreased expression of caveolin-1 have relevance to promoted senescence in preeclamptic placenta. Pregnancy Hypertens 2022; 30:59-67. [PMID: 36007380 DOI: 10.1016/j.preghy.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 10/15/2022]
Abstract
OBJECTIVES To assess the association between altered expression of caveolin-1 and p53/p21, as indicatives of cellular senescence, in preeclamptic placenta. STUDY DESIGN Placental tissues and serum were collected from rats (Sham and reduced uterine perfusion pressure group) at 18.5 days post coitum and humans (normotensive pregnant and preeclampsia groups). The concentration and expression of caveolin-1 were measured in the collected tissues, and the correlation between p53 and p21 expression was evaluation. MAIN OUTCOME MEASURES Placental mRNA expression and serum concentration of caveolin-1 were measured using qRT-PCR and ELISA, respectively. Altered expressions of caveolin-1 and p53/p21 were revealed and quantified by immunohistochemistry. The association between these changes was investigated using correlation analysis. RESULTS Placental mRNA expressions and serum concentrations of caveolin-1 were significantly decreased in reduced uterine perfusion pressure and preeclampsia groups. The expressions of caveolin-1 and p53/ p21 were significantly altered in placenta complicated with preeclampsia. Correlation analysis revealed a significant inverse association between changes in caveolin-1 and p53/p21. Subsequently, these results were obtained by investigating the preeclampsia onset time. CONCLUSION These results revealed that the expression of caveolin-1 profoundly decreases in the placenta and serum of preeclampsia. These factors contribute to the mechanism of accelerated cellular senescence in placenta, which is one of the various etiologies of preeclampsia.
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Affiliation(s)
- Sul Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea
| | - Min Jung Park
- The Korea Institute for Public Sperm Bank, Republic of Korea
| | - Hyun Joo Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea
| | - Jong Kil Joo
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea
| | - Dong Soo Suh
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea
| | - Kyung Un Choi
- Biomedical Research Institute Pusan National University Hospital, Republic of Korea; Department of Pathology, Pusan National University School of Medicine, Republic of Korea
| | - Ki Hyung Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea
| | - Seung Chul Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Republic of Korea; Biomedical Research Institute Pusan National University Hospital, Republic of Korea.
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Ha TY, Choi YR, Noh HR, Cha SH, Kim JB, Park SM. Age-related increase in caveolin-1 expression facilitates cell-to-cell transmission of α-synuclein in neurons. Mol Brain 2021; 14:122. [PMID: 34321069 PMCID: PMC8320051 DOI: 10.1186/s13041-021-00834-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Parkinson's disease (PD) is the second most prevalent neurodegenerative disease, with aging being considered the greatest risk factor for developing PD. Caveolin-1 (Cav-1) is known to participate in the aging process. Recent evidence indicates that prion-like propagation of misfolded α-synuclein (α-syn) released from neurons to neighboring neurons plays an important role in PD progression. In the present study, we demonstrated that cav-1 expression in the brain increased with age, and considerably increased in the brain of A53T α-syn transgenic mice. Cav-1 overexpression facilitated the uptake of α-syn into neurons and formation of additional Lewy body-like inclusion bodies, phosphorylation of cav-1 at tyrosine 14 was found to be crucial for this process. This study demonstrates the relationship between age and α-syn spread and will facilitate our understanding of the molecular mechanism of the cell-to-cell transmission of α-syn.
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Affiliation(s)
- Tae-Young Ha
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
| | - Yu Ree Choi
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Hye Rin Noh
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Seon-Heui Cha
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Marine Biomedical Sciences, Hanseo University, Seosan, Chungcheongnam-do, Korea
| | - Jae-Bong Kim
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Sang Myun Park
- Department of Pharmacology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Korea.
- Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea.
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7
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Abstract
Cellular senescence is a feature of most somatic cells. It is characterized by an irreversible cell cycle arrest and by the ability to secrete a plethora of mediators of inflammation and growth factors, which can alter the senescent cell's microenvironment. Senescent cells accumulate in tissues over time and contribute to both aging and the development of age-associated diseases. Senescent cells have antagonistic pleiotropic roles in cancer. Given the inability of senescent cells to proliferate, cellular senescence is a powerful tumor suppressor mechanism in young individuals. However, accumulation of senescent stromal cells during aging can fuel cancer cell growth in virtue of their capacity to release factors that stimulate cell proliferation. Caveolin-1 is a structural protein component of caveolae, invaginations of the plasma membrane involved in a variety of cellular processes, including signal transduction. Mounting evidence over the last 10-15 years has demonstrated a central role of caveolin-1 in the development of a senescent phenotype and the regulation of both the anti-tumorigenic and pro-tumorigenic properties of cellular senescence. In this review, we discuss the cellular mechanisms and functions of caveolin-1 in the context of cellular senescence and their relevance to the biology of cancer.
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8
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Mechanisms of adipose tissue extracellular matrix alterations in an in vitro model of adipocytes hypoxia and aging. Mech Ageing Dev 2020; 192:111374. [DOI: 10.1016/j.mad.2020.111374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/12/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022]
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9
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Goutas A, Papathanasiou I, Mourmoura E, Tsesmelis K, Tsezou A, Trachana V. Oxidative Stress Response Is Mediated by Overexpression and Spatiotemporal Regulation of Caveolin-1. Antioxidants (Basel) 2020; 9:antiox9080766. [PMID: 32824727 PMCID: PMC7464519 DOI: 10.3390/antiox9080766] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/13/2020] [Accepted: 08/16/2020] [Indexed: 12/16/2022] Open
Abstract
Oxidative stress (OS) has been linked to the aetiology of many diseases including osteoarthritis (OA). Recent studies have shown that caveolin-1—a structural protein of plasma membrane’s caveolae—is upregulated in response to OS. Here, we explore the function of caveolin-1 in chondrocytes derived from healthy individuals (control) and OA patients that were subjected to exogenous OS. We showed that caveolin-1 was upregulated in response to acute OS in the control, but not in OA chondrocytes. Moreover, OS-induced DNA damage analysis revealed that control cells started repairing the DNA lesions 6 h post-oxidative treatment, while OA cells seemed unable to restore these damages. Importantly, in the control cells, we observed a translocation of caveolin-1 from the membrane/cytoplasm in and out of the nucleus, which coincided with the appearance and restoration of DNA lesions. When caveolin-1 was prevented from translocating to the nucleus, the control cells were unable to repair DNA damage. In OA cells, no such translocation of caveolin-1 was observed, which could account for their inability to repair DNA damage. Taken together, these results provide novel insights considering the role of caveolin-1 in response to OS-induced DNA damage while revealing its implication in the pathophysiology of OA.
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Affiliation(s)
- Andreas Goutas
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
| | - Ioanna Papathanasiou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Evanthia Mourmoura
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Konstantinos Tsesmelis
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
| | - Aspasia Tsezou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (I.P.); (E.M.)
| | - Varvara Trachana
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (K.T.); (A.T.)
- Correspondence:
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10
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Abstract
Phospholipase C (PLC) family members constitute a family of diverse enzymes. Thirteen different family members have been cloned. These family members have unique structures that mediate various functions. Although PLC family members all appear to signal through the bi-products of cleaving phospholipids, it is clear that each family member, and at times each isoform, contributes to unique cellular functions. This chapter provides a review of the current literature on PLC. In addition, references have been provided for more in-depth information regarding areas that are not discussed including tyrosine kinase activation of PLC. Understanding the roles of the individual PLC enzymes, and their distinct cellular functions, will lead to a better understanding of the physiological roles of these enzymes in the development of diseases and the maintenance of homeostasis.
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11
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Ding L, Zeng Q, Wu J, Li D, Wang H, Lu W, Jiang Z, Xu G. Caveolin‑1 regulates oxidative stress‑induced senescence in nucleus pulposus cells primarily via the p53/p21 signaling pathway in vitro. Mol Med Rep 2017; 16:9521-9527. [PMID: 29039595 PMCID: PMC5780011 DOI: 10.3892/mmr.2017.7789] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 09/12/2017] [Indexed: 01/12/2023] Open
Abstract
Previous studies have indicated that cellular senescence is a critical underlying mechanism of intervertebral disc degeneration. However, the precise mechanism by which cellular senescence accelerates disc degeneration has not been fully elucidated. Caveolin-1 has recently emerged as an important regulator of cellular senescence. Therefore, the aim of the present study was to investigate whether caveolin-1 is involved in nucleus pulposus (NP) cellular senescence during oxidative stress. PCR was used to detect caveolin-1 mRNA expression and protein expression was detected by western blotting. Caveolin-1 expression at the mRNA and protein levels was markedly increased following treatment with tert-butyl hydroperoxide, and an increase in premature senescence was observed, as determined by senescence-associated β-galactosidase staining and the decline of cellular proliferative ability. In addition, caveolin-1 gene expression was successfully knocked down by lentivirus-mediated RNA interference, which exerted a protective effect against the cellular senescence induced by oxidative stress. Notably, p53 and p21 protein expression, though not p16 protein expression, decreased with caveolin-1 silencing. The results suggested that caveolin-1 may be involved in NP cellular senescence during oxidative stress in vitro, mainly via the p53/p21 signaling pathway. Thus, caveolin-1 may represent a novel therapeutic target for the prevention of intervertebral disc degeneration.
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Affiliation(s)
- Lei Ding
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Qingmin Zeng
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Jingping Wu
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Defang Li
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Houlei Wang
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Wei Lu
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Zengxin Jiang
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Guoxiong Xu
- Central Laboratory, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
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12
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Yu DM, Jung SH, An HT, Lee S, Hong J, Park JS, Lee H, Lee H, Bahn MS, Lee HC, Han NK, Ko J, Lee JS, Ko YG. Caveolin-1 deficiency induces premature senescence with mitochondrial dysfunction. Aging Cell 2017; 16:773-784. [PMID: 28514055 PMCID: PMC5506423 DOI: 10.1111/acel.12606] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2017] [Indexed: 12/11/2022] Open
Abstract
Paradoxical observations have been made regarding the role of caveolin-1 (Cav-1) during cellular senescence. For example, caveolin-1 deficiency prevents reactive oxygen species-induced cellular senescence despite mitochondrial dysfunction, which leads to senescence. To resolve this paradox, we re-addressed the role of caveolin-1 in cellular senescence in human diploid fibroblasts, A549, HCT116, and Cav-1-/- mouse embryonic fibroblasts. Cav-1 deficiency (knockout or knockdown) induced cellular senescence via a p53-p21-dependent pathway, downregulating the expression level of the cardiolipin biosynthesis enzymes and then reducing the content of cardiolipin, a critical lipid for mitochondrial respiration. Our results showed that Cav-1 deficiency decreased mitochondrial respiration, reduced the activity of oxidative phosphorylation complex I (CI), inactivated SIRT1, and decreased the NAD+ /NADH ratio. From these results, we concluded that Cav-1 deficiency induces premature senescence via mitochondrial dysfunction and silent information regulator 2 homologue 1 (SIRT1) inactivation.
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Affiliation(s)
- Dong-Min Yu
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Seung Hee Jung
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Hyoung-Tae An
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Sungsoo Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jin Hong
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jun Sub Park
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hyun Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hwayeon Lee
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Myeong-Suk Bahn
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Hyung Chul Lee
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Na-Kyung Han
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Jesang Ko
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
| | - Jae-Seon Lee
- Department of Molecular Medicine; Inha University College of Medicine; Incheon 22212 Korea
- Hypoxia-related Disease Research Center; Inha University College of Medicine; Incheon 22212 Korea
| | - Young-Gyu Ko
- Tunneling Nanotube Research Center; Korea University; Seoul 02841 Korea
- Division of Life Sciences; Korea University; Seoul 02841 Korea
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13
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The Role of Caveolin 1 in HIV Infection and Pathogenesis. Viruses 2017; 9:v9060129. [PMID: 28587148 PMCID: PMC5490806 DOI: 10.3390/v9060129] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/02/2017] [Accepted: 05/22/2017] [Indexed: 12/29/2022] Open
Abstract
Caveolin 1 (Cav-1) is a major component of the caveolae structure and is expressed in a variety of cell types including macrophages, which are susceptible to human immunodeficiency virus (HIV) infection. Caveolae structures are present in abundance in mechanically stressed cells such as endothelial cells and adipocytes. HIV infection induces dysfunction of these cells and promotes pathogenesis. Cav-1 and the caveolae structure are believed to be involved in multiple cellular processes that include signal transduction, lipid regulation, endocytosis, transcytosis, and mechanoprotection. Such a broad biological role of Cav-1/caveolae is bound to have functional cross relationships with several molecular pathways including HIV replication and viral-induced pathogenesis. The current review covers the relationship of Cav-1 and HIV in respect to viral replication, persistence, and the potential role in pathogenesis.
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14
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Chen JR, Lazarenko OP, Blackburn ML, Badger TM, Ronis MJJ. Soy protein isolate inhibits high-fat diet-induced senescence pathways in osteoblasts to maintain bone acquisition in male rats. Endocrinology 2015; 156:475-87. [PMID: 25490147 PMCID: PMC4298323 DOI: 10.1210/en.2014-1427] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chronic consumption by experimental animals of a typical Western diet high in saturated fats and cholesterol during postnatal life has been demonstrated to impair skeletal development. However, the underlying mechanism by which high-fat, energy-dense diets affect bone-forming cell phenotypes is poorly understood. Here, we show that male weanling rats fed a diet containing 45% fat and 0.5% cholesterol made with casein (HF-Cas) for 6 weeks displayed lower bone mineral density and strength compared with those of AIN-93G-fed dietary controls. Substitution of casein with soy protein isolate (SPI) in the high-fat diet (HF-SPI) prevented these effects. The bone-sparing effects of SPI were associated with prevention of HF-Cas-induced osteoblast senescence pathways through suppression of the p53/p21 signaling pathways. HF-Cas-fed rats had increased caveolin-1 and down-regulated Sirt1, leading to activations of peroxisome proliferator-activated receptor γ (PPARγ) and p53/p21, whereas rats fed HF-SPI suppressed caveolin-1 and activated Sirt1 to deacetylate PPARγ and p53 in bone. Treatment of osteoblastic cells with nonesterified free fatty acid (NEFA) increased cell senescence signaling pathways. Isoflavones significantly blocked activations of senescence-associated β-galactosidase and PPARγ/p53/p21 by NEFA. Finally, replicative senescent osteoblastic cells and bone marrow mesenchymal ST2 cells exhibited behavior similar to that of cells treated with NEFA and in vivo bone cells in rats fed the HF-Cas diet. These results suggest that (1) high concentrations of NEFA occurring with HF intake are mediators of osteoblast cell senescence leading to impairment of bone development and acquisition and (2) the molecular mechanisms underlying the SPI-protective effects involve isoflavone-induced inhibition of osteoblastic cell senescence to prevent HF-induced bone impairments.
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Affiliation(s)
- Jin-Ran Chen
- Arkansas Children's Nutrition Center (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), Little Rock, Arkansas 72202; and Department of Pediatrics (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202
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15
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Wang FW, Zhao F, Qian XY, Yu ZZ, Zhao J, Su L, Zhang Y, Zhang SL, Zhao BX, Miao JY. Identification of a small molecule preventing BMSC senescence in vitro by improving intracellular homeostasis via ANXA7 and Hmbox1. RSC Adv 2014. [DOI: 10.1039/c4ra10404h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABO was discovered to be a novel anti-aging chemical in cultured BMSCs by improving intracellular homeostasis.
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Affiliation(s)
- Fang-Wu Wang
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Fei Zhao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Xing-Yang Qian
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Zhe-Zhen Yu
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Jing Zhao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Le Su
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Shandong University Qilu Hospital
- Jinan, P.R. China
| | - Shang-Li Zhang
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Jun-Ying Miao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
- The Key Laboratory of Cardiovascular Remodeling and Function Research
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16
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Li L, Hu Y, Ylivinkka I, Li H, Chen P, Keski-Oja J, Hyytiäinen M. NETRIN-4 protects glioblastoma cells FROM temozolomide induced senescence. PLoS One 2013; 8:e80363. [PMID: 24265816 PMCID: PMC3827196 DOI: 10.1371/journal.pone.0080363] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 10/04/2013] [Indexed: 12/11/2022] Open
Abstract
Glioblastoma multiforme is the most common primary tumor of the central nervous system. The drug temozolomide (TMZ) prolongs lifespan in many glioblastoma patients. The sensitivity of glioblastoma cells to TMZ is interfered by many factors, such as the expression of O-6-methylguanine-DNA methyltransferase (MGMT) and activation of AKT signaling. We have recently identified the interaction between netrin-4 (NTN4) and integrin beta-4 (ITGB4), which promotes glioblastoma cell proliferation via activating AKT-mTOR signaling pathway. In the current work we have explored the effect of NTN4/ITGB4 interaction on TMZ induced glioblastoma cell senescence. We report here that the suppression of either ITGB4 or NTN4 in glioblastoma cell lines significantly enhances cellular senescence. The sensitivity of GBM cells to TMZ was primarily determined by the expression of MGMT. To omit the effect of MGMT, we concentrated on the cell lines devoid of expression of MGMT. NTN4 partially inhibited TMZ induced cell senescence and rescued AKT from dephosphorylation in U251MG cells, a cell line bearing decent levels of ITGB4. However, addition of exogenous NTN4 displayed no significant effect on TMZ induced senescence rescue or AKT activation in U87MG cells, which expressed ITGB4 at low levels. Furthermore, overexpression of ITGB4 combined with exogenous NTN4 significantly attenuated U87MG cell senescence induced by TMZ. These data suggest that NTN4 protects glioblastoma cells from TMZ induced senescence, probably via rescuing TMZ triggered ITGB4 dependent AKT dephosphorylation. This suggests that interfering the interaction between NTN4 and ITGB4 or concomitant use of the inhibitors of the AKT pathway may improve the therapeutic efficiency of TMZ.
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Affiliation(s)
- Li Li
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
- Department of Oncology, the Second Clinical College, Harbin Medical University, Harbin, People's Republic of China
| | - Yizhou Hu
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Irene Ylivinkka
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Huini Li
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Ping Chen
- Research Programs Unit, Genome-Scale Biology and Institute of Biomedicine, University of Helsinki, Helsinki, Finland
| | - Jorma Keski-Oja
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Marko Hyytiäinen
- Departments of Virology and Pathology, Faculty of Medicine, the Haartman Institute, Translational Cancer Biology Research Program and Helsinki University Hospital, University of Helsinki, Helsinki, Finland
- * E-mail:
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17
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Abstract
Phospholipase C (PLC) family members constitute a family of diverse enzymes. Thirteen different family members have been cloned. These family members have unique structures that mediate diverse functions. Although PLC family members all appear to signal through the bi-products of cleaving phospholipids, it is clear that each family member, and at times each isoform, contributes to unique cellular functions. This chapter provides a review of the current literature. In addition, references have been provided for more in depth information regarding areas that are discussed. Ultimately, understanding the roles of the individual PLC enzymes, and their distinct cellular functions, will lead to a better understanding of the development of diseases and the maintenance of homeostasis.
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18
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Zou H, Stoppani E, Volonte D, Galbiati F. Caveolin-1, cellular senescence and age-related diseases. Mech Ageing Dev 2011; 132:533-42. [PMID: 22100852 DOI: 10.1016/j.mad.2011.11.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 11/03/2011] [Accepted: 11/05/2011] [Indexed: 01/22/2023]
Abstract
According to the "free radical theory" of aging, normal aging occurs as the result of tissue damages inflicted by reactive oxygen species (ROS) when ROS production exceeds the antioxidant capacity of the cell. ROS induce cellular dysfunctions such as stress-induced premature senescence (SIPS), which is believed to contribute to normal organismal aging and play a role in age-related diseases. Consistent with this hypothesis, increased oxidative damage of DNA, proteins, and lipids have been reported in aged animals and senescent cells accumulate in vivo with advancing age. Caveolin-1 acts as a scaffolding protein that concentrates and functionally regulates signaling molecules. Recently, great progress has been made toward understanding of the role of caveolin-1 in stress-induced premature senescence. Data show that caveolin-mediated signaling may contribute to explain, at the molecular level, how oxidative stress promotes the deleterious effects of cellular senescence such as aging and age-related diseases. In this review, we discuss the cellular mechanisms and functions of caveolin-1 in the context of SIPS and their relevance to the biology of aging.
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Affiliation(s)
- Huafei Zou
- Department of Pharmacology & Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
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19
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Sun C, Liu X, Qi L, Xu J, Zhao J, Zhang Y, Zhang S, Miao J. Modulation of vascular endothelial cell senescence by integrin β4. J Cell Physiol 2010; 225:673-81. [PMID: 20509141 DOI: 10.1002/jcp.22262] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Increasing evidence has demonstrated that the senescence of vascular endothelial cells (VECs) has critical roles in the pathogenesis of vascular dysfunction. Finding important factors that regulate VEC senescence will help provide novel therapeutic strategies for vascular disorders. Previously, we found that integrin β4 was involved in VEC senescence. However, the mechanism underlying VEC senescence mediated by integrin β4 remains poorly understand. In this study, we used a mouse in vivo model and showed that the level of integrin β4 in the endothelium of mouse thoracic aorta was increased during natural aging and atherosclerosis. Furthermore, we found that H-ras, caveolin-1, and AP-1 were implicated in the senescent signal pathway mediated by integrin β4 in human umbilical vein ECs (HUVECs). Knockdown of integrin β4 could attenuate HUVEC senescent features, including increased interleukin-8 (IL-8) release and decreased endothelial nitric oxide synthase (eNOS) and NO levels and mitochondrial membrane potential in vitro. Our findings provide new clues illustrating the mechanism of VEC senescence. Integrin β4 might be a potential target for therapy in cardiovascular diseases.
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Affiliation(s)
- ChunHui Sun
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, China
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