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Xiang X, Xie L, Lin J, Pare R, Huang G, Huang J, Wang Y, Song S, Ruan Y. Estrogen receptor alpha mediates 17β-estradiol, up-regulates autophagy and alleviates hydrogen peroxide-induced vascular senescence. Biogerontology 2023; 24:783-799. [PMID: 36683095 DOI: 10.1007/s10522-023-10015-4] [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: 12/06/2022] [Accepted: 01/10/2023] [Indexed: 01/24/2023]
Abstract
Atherosclerosis threatens human health by developing cardiovascular diseases, the deadliest disease world widely. The major mechanism contributing to the formation of atherosclerosis is mainly due to vascular endothelial cell (VECs) senescence. We have shown that 17β-estradiol (17β-E2) may protect VECs from senescence by upregulating autophagy. However, little is known about how 17β-E2 activates the autophagy pathway to alleviate cellular senescence. Therefore, the aim of this study is to determine the role of estrogen receptor (ER) α and β in the effects of 17β-E2 on vascular autophagy and aging through in vitro and in vivo models. Hydrogen peroxide (H2O2) was used to establish Human Umbilical Vein Endothelial Cells (HUVECs) senescence. Autophagy activity was measured through immunofluorescence and immunohistochemistry staining of light chain 3 (LC3) expression. Inhibition of ER activity was established using shRNA gene silencing and ER antagonist. Compared with ER-β knockdown, we found that knockdown of ER-α resulted in a significant increase in the extent of HUVEC senescence and senescence-associated secretory phenotype (SASP) secretion. ER-α-specific shRNA was found to reduce 17β-E2-induced autophagy, promote HUVEC senescence, disrupt the morphology of HUVECs, and increase the expression of Rb dephosphorylation and SASP. These in vitro findings were found consistent with the in vivo results. In conclusion, our data suggest that 17β-E2 activates the activity of ER-α and then increases the formation of autophagosomes (LC3 high expression) and decreases the fusion of lysosomes with autophagic vesicles (P62 low expression), which in turn serves to decrease the secretion of SASP caused by H2O2 and consequently inhibit H2O2-induced senescence in HUVEC cells.
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Affiliation(s)
- Xiuting Xiang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - LiangZhen Xie
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Jieqi Lin
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Rahmawati Pare
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Guanshen Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Jianming Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yuyan Wang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Shicong Song
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yunjun Ruan
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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Ma B, Hu Y, Zhu J, Zheng Z, Ye J. Research on the role of cellular autophagy in the sensitivity of human tongue cancer cells to radiotherapy and chemotherapy. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101430. [PMID: 36878357 DOI: 10.1016/j.jormas.2023.101430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
OBJECTIVE This paper aims to investigate the role of cisplatin-induced autophagy in human tongue squamous carcinoma Tca8113 cells. METHODS After inhibiting the expression of autophagic proteins with different autophagy inhibitors (3-methyladenine, chloroquine), the sensitivity of human tongue squamous cell carcinoma (Tca8113) cells to killing by gradient concentrations of cisplatin and gradient doses of radiation was detected using a colony formation assay. Further, the changes of autophagy expression in Tca8113 cells that had been treated with cisplatin and radiation were detected using western immunoblot, GFP-LC3 fluorescence and transmission electron microscopy. RESULTS The sensitivity of Tca8113 cells to cisplatin and radiation was significantly increased (P < 0.05) after reducing autophagy expression using different autophagy inhibitors. Meanwhile, the expression of autophagy in the cells was significantly increased by cisplatin and radiation treatment. CONCLUSION Tca8113 cells upregulated autophagy under the effect of either radiation or cisplatin, and the sensitivity of Tca8113 cells to cisplatin and radiation could be improved by inhibiting autophagy using multiple pathways.
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Affiliation(s)
- Ben Ma
- Department of Oral and Maxillofacial Surgery, Shenzhen Stomatology Hospital (Pingshan) of Southern Medical University, Shenzhen, 518118, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing 210029, China
| | - Yong Hu
- Department of Stomatology, The Affiliated Suzhou Science and Technology, Town Hospital of Nanjing Medical University, Suzhou, 215153, China
| | - Jiadong Zhu
- Department of Stomatology, The Affiliated Suzhou Science and Technology, Town Hospital of Nanjing Medical University, Suzhou, 215153, China
| | - Zeguang Zheng
- Department of Stomatology, The Affiliated Suzhou Science and Technology, Town Hospital of Nanjing Medical University, Suzhou, 215153, China
| | - Jinhai Ye
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China.
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Zheng J, Hu S, Wang J, Zhang X, Yuan D, Zhang C, Liu C, Wang T, Zhou Z. Icariin improves brain function decline in aging rats by enhancing neuronal autophagy through the AMPK/mTOR/ULK1 pathway. PHARMACEUTICAL BIOLOGY 2021; 59:183-191. [PMID: 33556283 PMCID: PMC8871627 DOI: 10.1080/13880209.2021.1878238] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
CONTEXT Icariin (ICA) is the main active ingredient of Epimedium brevicornu Maxim (Berberidaceae), which is used in the immune, reproductive, neuroendocrine systems, and anti-aging. OBJECTIVE To evaluate the effect of ICA on natural aging rat. MATERIALS AND METHODS 16-month-old Sprague-Dawley (SD) rats were randomly divided into aging, low and high-dose ICA groups (n = 8); 6-month-old rats were taken as the adult control (n = 8). Rats were fed regular feed (aging and adult control) or feed containing ICA (ICA 2 and 6 mg/kg group) for 4 months. HE and Nissl staining were used to assess pathological changes. Western blot was used to test the expression of autophagy (LC3B, p62, Atg5, Beclin1) and p-AMPK, p-mTOR and p-ULK1 (ser 757). Immunofluorescence was used to detect the co-localization of LC3 and neurons. RESULTS ICA improved neuronal degeneration associated with aging and increased the staining of Nissl bodies. Western blot showed that ICA up-regulated autophagy-related proteins LC3B (595%), Beclin1 (73.5%), p-AMPK (464%) protein (p < 0.05 vs. 20 M) in the cortex and hippocampus of aging rats, down-regulated the expression of p62 (56.9%), p-mTOR (53%) and p-ULK1 (ser 757) (65.4%) protein (p < 0.05 vs. 20 M). Immunofluorescence showed that the fluorescence intensity of LC3 decreased in the aging rat brain, but increased and mainly co-localized with neurons after ICA intervention. CONCLUSIONS Further research needs to verify the expression changes of AMPK/mTOR/ULK1 and the improvement effect of ICA in elderly. These results will further accelerate the applications of ICA and the treatment for senescence.
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Affiliation(s)
- Jie Zheng
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Shanshan Hu
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Jinxin Wang
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Xulan Zhang
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Ding Yuan
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Changcheng Zhang
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Chaoqi Liu
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
| | - Ting Wang
- Department of Pharmacy, College of Medicine, New Drug Innovation and Development Institute, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
- CONTACT Ting Wang Department of Pharmacy, College of Medicine, New Drug Innovation and Development Institute, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Zhiyong Zhou
- Medical College of China Three Gorges University, Yichang, P. R. Chinas
- Zhiyong Zhou Medical College of China, Three Gorges University, 8 University Road, Yichang 443002, Hubei, China
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Wang C, Haas M, Yeo SK, Sebti S, Fernández ÁF, Zou Z, Levine B, Guan JL. Enhanced autophagy in Becn1F121A/F121A knockin mice counteracts aging-related neural stem cell exhaustion and dysfunction. Autophagy 2021; 18:409-422. [PMID: 34101533 DOI: 10.1080/15548627.2021.1936358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Macroautophagy/autophagy is emerging as a major pathway that regulates both aging and stem cell function. Previous studies have demonstrated a positive correlation of autophagy with longevity; however, these studies did not directly address the consequence of altered autophagy in stem cells during aging. In this study, we used Becn1F121A/F121A knockin mice (designated as Becn1 KI mice) with the F121A allele in the autophagy gene Becn1 to investigate the consequences of enhanced autophagy in postnatal neural stem cells (NSCs) during aging. We found that increased autophagy protected NSCs from exhaustion and promoted neurogenesis in old (≥18-months-old) mice compared with age-matched wild-type (WT) mice, although it did not affect NSCs in young (3-months-old) mice. After pharmacologically-induced elimination of proliferative cells in the subventricular zone (SVZ), there was enhanced re-activation of quiescent NSCs in old Becn1 KI mice as compared to those in WT mice, with more efficient exit from quiescent status to generate proliferative cells and neuroblasts. Moreover, there was also improved maintenance and increased neuronal differentiation of NSCs isolated from the SVZ of old Becn1 KI mice in in vitro assays. Lastly, the increased neurogenesis in Becn1 KI mice was associated with better olfactory function in aged animals. Together, our results suggest a protective role of increased autophagy in aging NSCs, which may help the development of novel strategies to treat age-related neurodegeneration.
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Affiliation(s)
- Chenran Wang
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Michael Haas
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Syn Kok Yeo
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Salwa Sebti
- Center for Autophagy Research, Department of Internal Medicine, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Álvaro F Fernández
- Center for Autophagy Research, Department of Internal Medicine, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhongju Zou
- Center for Autophagy Research, Department of Internal Medicine, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Beth Levine
- Center for Autophagy Research, Department of Internal Medicine, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jun-Lin Guan
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Abdelgawad IY, Sadak KT, Lone DW, Dabour MS, Niedernhofer LJ, Zordoky BN. Molecular mechanisms and cardiovascular implications of cancer therapy-induced senescence. Pharmacol Ther 2021; 221:107751. [PMID: 33275998 PMCID: PMC8084867 DOI: 10.1016/j.pharmthera.2020.107751] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022]
Abstract
Cancer treatment has been associated with accelerated aging that can lead to early-onset health complications typically experienced by older populations. In particular, cancer survivors have an increased risk of developing premature cardiovascular complications. In the last two decades, cellular senescence has been proposed as an important mechanism of premature cardiovascular diseases. Cancer treatments, specifically anthracyclines and radiation, have been shown to induce senescence in different types of cardiovascular cells. Additionally, clinical studies identified increased systemic markers of senescence in cancer survivors. Preclinical research has demonstrated the potential of several approaches to mitigate cancer therapy-induced senescence. However, strategies to prevent and/or treat therapy-induced cardiovascular senescence have not yet been translated to the clinic. In this review, we will discuss how therapy-induced senescence can contribute to cardiovascular complications. Thereafter, we will summarize the current in vitro, in vivo, and clinical evidence regarding cancer therapy-induced cardiovascular senescence. Then, we will discuss interventional strategies that have the potential to protect against therapy-induced cardiovascular senescence. To conclude, we will highlight challenges and future research directions to mitigate therapy-induced cardiovascular senescence in cancer survivors.
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Affiliation(s)
- Ibrahim Y Abdelgawad
- Department of Experimental and Clinical Pharmacology, University of Minnesota College of Pharmacy, Minneapolis, MN 55455, USA
| | - Karim T Sadak
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN 55455, USA; University of Minnesota Masonic Children's Hospital, Minneapolis, MN 55455, USA; University of Minnesota Masonic Cancer Center, Minneapolis, MN 55455, USA
| | - Diana W Lone
- University of Minnesota Masonic Children's Hospital, Minneapolis, MN 55455, USA
| | - Mohamed S Dabour
- Clinical Pharmacy Department, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt
| | - Laura J Niedernhofer
- Institute on the Biology of Aging and Metabolism and Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Beshay N Zordoky
- Department of Experimental and Clinical Pharmacology, University of Minnesota College of Pharmacy, Minneapolis, MN 55455, USA.
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Bjedov I, Rallis C. The Target of Rapamycin Signalling Pathway in Ageing and Lifespan Regulation. Genes (Basel) 2020; 11:E1043. [PMID: 32899412 PMCID: PMC7565554 DOI: 10.3390/genes11091043] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 12/11/2022] Open
Abstract
Ageing is a complex trait controlled by genes and the environment. The highly conserved mechanistic target of rapamycin signalling pathway (mTOR) is a major regulator of lifespan in all eukaryotes and is thought to be mediating some of the effects of dietary restriction. mTOR is a rheostat of energy sensing diverse inputs such as amino acids, oxygen, hormones, and stress and regulates lifespan by tuning cellular functions such as gene expression, ribosome biogenesis, proteostasis, and mitochondrial metabolism. Deregulation of the mTOR signalling pathway is implicated in multiple age-related diseases such as cancer, neurodegeneration, and auto-immunity. In this review, we briefly summarise some of the workings of mTOR in lifespan and ageing through the processes of transcription, translation, autophagy, and metabolism. A good understanding of the pathway's outputs and connectivity is paramount towards our ability for genetic and pharmacological interventions for healthy ageing and amelioration of age-related disease.
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Affiliation(s)
- Ivana Bjedov
- UCL Cancer Institute, Paul O’Gorman Building, 72 Huntley Street, London WC1E 6DD, UK
| | - Charalampos Rallis
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
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Bell K, Rosignol I, Sierra-Filardi E, Rodriguez-Muela N, Schmelter C, Cecconi F, Grus F, Boya P. Age related retinal Ganglion cell susceptibility in context of autophagy deficiency. Cell Death Discov 2020; 6:21. [PMID: 32337073 PMCID: PMC7165178 DOI: 10.1038/s41420-020-0257-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 03/25/2020] [Indexed: 12/26/2022] Open
Abstract
Glaucoma is a common age-related disease leading to progressive retinal ganglion cell (RGC) death, visual field defects and vision loss and is the second leading cause of blindness in the elderly worldwide. Mitochondrial dysfunction and impaired autophagy have been linked to glaucoma and induction of autophagy shows neuroprotective effects in glaucoma animal models. We have shown that autophagy decreases with aging in the retina and that autophagy can be neuroprotective for RGCs, but it is currently unknown how aging and autophagy deficiency impact RGCs susceptibility and survival. Using the optic nerve crush model in young and olWelcome@1234d Ambra1 +/gt (autophagy/beclin-1 regulator 1+/gt) mice we analysed the contribution of autophagy deficiency on retinal ganglion cell survival in an age dependent context. Interestingly, old Ambra1 +/gt mice showed decreased RGC survival after optic nerve crush in comparison to old Ambra1 +/+, an effect that was not observed in the young animals. Proteomics and mRNA expression data point towards altered oxidative stress response and mitochondrial alterations in old Ambra1 +/gt animals. This effect is intensified after RGC axonal damage, resulting in reduced oxidative stress response showing decreased levels of Nqo1, as well as failure of Nrf2 induction in the old Ambra1 +/gt. Old Ambra1 +/gt also failed to show increase in Bnip3l and Bnip3 expression after optic nerve crush, a response that is found in the Ambra1 +/+ controls. Primary RGCs derived from Ambra1 +/gt mice show decreased neurite projection and increased levels of apoptosis in comparison to Ambra1 +/+ animals. Our results lead to the conclusion that oxidative stress response pathways are altered in old Ambra1 +/gt mice leading to impaired damage responses upon additional external stress factors.
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Affiliation(s)
- Katharina Bell
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
- Experimental and Translational Ophthalmology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Ines Rosignol
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
| | - Elena Sierra-Filardi
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
| | - Natalia Rodriguez-Muela
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
- Deutsche Zentrum für Neurodegenerative Erkrankungen e.V, DZNE/German Center for Neurodegenerative Diseases, Dresden, Germany
| | - Carsten Schmelter
- Experimental and Translational Ophthalmology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Francesco Cecconi
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Franz Grus
- Experimental and Translational Ophthalmology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Patricia Boya
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
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Lysosomes as dynamic regulators of cell and organismal homeostasis. Nat Rev Mol Cell Biol 2019; 21:101-118. [DOI: 10.1038/s41580-019-0185-4] [Citation(s) in RCA: 408] [Impact Index Per Article: 81.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2019] [Indexed: 12/11/2022]
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