1
|
Kim SG, Sung JY, Kang YJ, Choi HC. Fisetin alleviates cellular senescence through PTEN mediated inhibition of PKCδ-NOX1 pathway in vascular smooth muscle cells. Arch Gerontol Geriatr 2023; 108:104927. [PMID: 36645971 DOI: 10.1016/j.archger.2023.104927] [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: 10/30/2022] [Revised: 11/29/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
Reactive oxygen species (ROS) are a key risk factor of cellular senescence and age-related diseases, and protein kinase C (PKC) has been shown to activate NADPH oxidases (NOXs), which generate ROS. Although PKC activation induces oxidative stress, leading to the cellular dysfunction in various cell types, the correlation between PKC and senescence has not been reported in vascular smooth muscle cell (VSMC). Several studies have indicated cellular senescence is accompanied by phosphatase and tensin homolog (PTEN) loss and that an interaction exists between PTEN and PKC. Therefore, we aimed to determine whether PTEN and PKC are associated with VSMC senescence and to investigate the mechanism involved. We found hydrogen peroxide (H2O2) decreased PTEN expression and increased PKCδ phosphorylation. Moreover, H2O2 upregulated the NOX1 subunits, p22phox and p47phox, and induced VSMC senescence via p53-p21 signaling pathway. We identified PKCδ activation contributed to VSMC senescence through activation of NOX1 and ROS production. However, fisetin inhibited cellular senescence induced by the PTEN-PKCδ-NOX1-ROS signaling pathway, and this anti-aging effect was attributed to reduced ROS production caused by suppressing NOX1 activation. These results suggest that the PTEN-PCKδ signaling pathway is directly related to senescence via NOX1 activation and that the downregulation of PKCδ by flavonoids provides a potential means of treating age-associated diseases.
Collapse
Affiliation(s)
- Seul Gi Kim
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea; Senotherapy-based Metabolic Disease Control Research Center, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea
| | - Jin Young Sung
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea; Senotherapy-based Metabolic Disease Control Research Center, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea
| | - Young Jin Kang
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea
| | - Hyoung Chul Choi
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea; Senotherapy-based Metabolic Disease Control Research Center, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Republic of Korea.
| |
Collapse
|
2
|
Piehler S, Wucherpfennig L, Tansi FL, Berndt A, Quaas R, Teichgraeber U, Hilger I. Hyperthermia affects collagen fiber architecture and induces apoptosis in pancreatic and fibroblast tumor hetero-spheroids in vitro. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2020; 28:102183. [PMID: 32222478 DOI: 10.1016/j.nano.2020.102183] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/04/2020] [Accepted: 03/14/2020] [Indexed: 12/16/2022]
Abstract
Desmoplasia, an aberrant production of extracellular matrix (ECM), is considered as one predictive marker of malignancy of pancreatic cancer. In this paper, we study the effect of mild hyperthermia on fibrillary collagen architecture in murine Achilles tendons and in a pancreatic cancer model, in vitro, i.e. 3D hetero-type tumor spheroids, consisting of pancreatic cancer (Panc-1) cells and fibroblasts (WI-38), producing collagen fibers. We clearly demonstrate that i) mild hyperthermia (40 °C, 42 °C) damages the collagen architecture in murine Achilles tendons. ii) Mild extrinsic (hot air) and iron oxide nanoparticle based magnetic hyperthermia reduce the level of collagen fiber architecture in the generated hetero-type tumor spheroids. iii) Mild magnetic hyperthermia reduces cell vitality mainly through apoptotic and necrotic processes in the generated tumor spheroids. In conclusion, hetero-type 3D tumor spheroids are suitable for studying the effect of hyperthermia on collagen fibers, in vitro.
Collapse
Affiliation(s)
- Susann Piehler
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Lena Wucherpfennig
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Felista L Tansi
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Alexander Berndt
- Section Pathology, Institute of Legal Medicine, Jena University Hospital, Jena, Germany
| | | | - Ulf Teichgraeber
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Ingrid Hilger
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany.
| |
Collapse
|
3
|
Sanokawa-Akakura R, Akakura S, Ostrakhovitch EA, Tabibzadeh S. Replicative senescence is distinguishable from DNA damage-induced senescence by increased methylation of promoter of rDNA and reduced expression of rRNA. Mech Ageing Dev 2019; 183:111149. [PMID: 31568766 DOI: 10.1016/j.mad.2019.111149] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/09/2019] [Accepted: 09/17/2019] [Indexed: 12/11/2022]
Abstract
Human fibroblasts become senescent after a limited number of replications or by diverse stresses, such as DNA damage. However, replicative and damage induced senescence are indistinguishable in respect to proliferation cessation and expression of senescence markers, senescence-associated β-galactosidase, p16 and p21. Here, we show that senescence types can be distinguished by reduced levels of 18S, 5.8S and 28S rRNA, in replicative but not induced senescence. We also demonstrate that promoter region of rRNA is hypermethylated in replicative senescence. The findings show that expression level of rRNA or methylation of its promoter can be used to distinguish between senescence types.
Collapse
Affiliation(s)
- Reiko Sanokawa-Akakura
- Frontiers in Bioscience Research Institute in Aging and Cancer, 16471 Scientific Way, Irvine, CA 92618, USA
| | - Shin Akakura
- Frontiers in Bioscience Research Institute in Aging and Cancer, 16471 Scientific Way, Irvine, CA 92618, USA
| | - Elena A Ostrakhovitch
- Frontiers in Bioscience Research Institute in Aging and Cancer, 16471 Scientific Way, Irvine, CA 92618, USA
| | - Siamak Tabibzadeh
- Frontiers in Bioscience Research Institute in Aging and Cancer, 16471 Scientific Way, Irvine, CA 92618, USA.
| |
Collapse
|
4
|
He H, Yu B, Liu Z, Ye G, You W, Hong Y, Lian Q, Zhang Y, Li X. Vascular progenitor cell senescence in patients with Marfan syndrome. J Cell Mol Med 2019; 23:4139-4152. [PMID: 30920150 PMCID: PMC6533473 DOI: 10.1111/jcmm.14301] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/29/2019] [Accepted: 02/19/2019] [Indexed: 12/12/2022] Open
Abstract
Vascular progenitor cells (VPCs) present in the adventitia of the vessel wall play a critical role in the regulation of vascular repair following injury. This study aimed to assess the function of VPCs isolated from patients with Marfan syndrome (MFS). VPCs were isolated from control and MFS donors and characterized. Compared with control‐VPCs, MFS‐VPCs exhibited cellular senescence as demonstrated by increased cell size, higher SA‐β‐gal activity and elevated levels of p53 and p21. RNA sequencing showed that several cellular process‐related pathways including cell cycle and cellular senescence were significantly enriched in MFP‐VPCs. Notably, the expression level of TGF‐β1 was much higher in MFS‐VPCs than control‐VPCs. Treatment of control‐VPCs with TGF‐β1 significantly enhanced mitochondrial reactive oxidative species (ROS) and induced cellular senescence whereas inhibition of ROS reversed these effects. MFS‐VPCs displayed increased mitochondrial fusion and decreased mitochondrial fission. Treatment of control‐VPCs with TGF‐β1 increased mitochondrial fusion and reduced mitochondrial fission. Nonetheless, treatment of mitofusin2 (Mfn2)‐siRNA inhibited TGF‐β1‐induced mitochondrial fusion and cellular senescence. Furthermore, TGF‐β1‐induced mitochondrial fusion was mediated by the AMPK signalling pathway. Our study shows that TGF‐β1 induces VPC senescence in patients with MFS by mediating mitochondrial dynamics via the AMPK signalling pathway.
Collapse
Affiliation(s)
- Haiwei He
- School of Medicine, South China University of Technology, Guangzhou, China.,Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Baoqi Yu
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Zipeng Liu
- Center for Genomic Sciences, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Gen Ye
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wei You
- Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yimei Hong
- School of Medicine, South China University of Technology, Guangzhou, China.,Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qizhou Lian
- Department of Medicine, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, 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, China
| | - Xin Li
- School of Medicine, South China University of Technology, Guangzhou, China.,Department of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| |
Collapse
|
5
|
Rudolf J, Raad H, Taieb A, Rezvani HR. NADPH Oxidases and Their Roles in Skin Homeostasis and Carcinogenesis. Antioxid Redox Signal 2018; 28:1238-1261. [PMID: 28990413 DOI: 10.1089/ars.2017.7282] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Skin protects the body from dehydration, pathogens, and external mutagens. NADPH oxidases are central components for regulating the cellular redox balance. There is increasing evidence indicating that reactive oxygen species (ROS) generated by members of this enzyme family play important roles in the physiology and pathophysiology of the skin. Recent Advances: NADPH oxidases are active producers of ROS such as superoxide and hydrogen peroxide. Different isoforms are found in virtually all tissues. They play pivotal roles in normal cell homeostasis and in the cellular responses to various stressors. In particular, these enzymes are integral parts of redox-sensitive prosurvival and proapoptotic signaling pathways, in which they act both as effectors and as modulators. However, continuous (re)activation of NADPH oxidases can disturb the redox balance of cells, in the worst-case scenario in a permanent manner. Abnormal NADPH oxidase activity has been associated with a wide spectrum of diseases, as well as with aging and carcinogenesis. CRITICAL ISSUES Sunlight with its beneficial and deleterious effects induces the activation of NADPH oxidases in the skin. Evidence for the important roles of this enzyme family in skin cancer and skin aging, as well as in many chronic skin diseases, is now emerging. FUTURE DIRECTIONS Understanding the precise roles of NADPH oxidases in normal skin homeostasis, in the cellular responses to solar radiation, and during carcinogenesis will pave the way for their validation as therapeutic targets not only for the prevention and treatment of skin cancers but also for many other skin-related disorders. Antioxid. Redox Signal. 28, 1238-1261.
Collapse
Affiliation(s)
- Jana Rudolf
- 1 Inserm U 1035, Bordeaux, France .,2 Université de Bordeaux , Bordeaux, France
| | - Houssam Raad
- 1 Inserm U 1035, Bordeaux, France .,2 Université de Bordeaux , Bordeaux, France
| | - Alain Taieb
- 1 Inserm U 1035, Bordeaux, France .,2 Université de Bordeaux , Bordeaux, France .,3 Service de Dermatologie Adulte et Pédiatrique , CHU de Bordeaux, Bordeaux, France .,4 Centre de Référence des Maladies Rares de la Peau , CHU de Bordeaux, Bordeaux, France
| | - Hamid Reza Rezvani
- 1 Inserm U 1035, Bordeaux, France .,2 Université de Bordeaux , Bordeaux, France .,4 Centre de Référence des Maladies Rares de la Peau , CHU de Bordeaux, Bordeaux, France
| |
Collapse
|