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Kirimlioglu E, Oflamaz AO, Hidisoglu E, Ozen S, Yargicoglu P, Demir N. Short and long-term 2100 MHz radiofrequency radiation causes endoplasmic reticulum stress in rat testis. Histochem Cell Biol 2024; 162:311-321. [PMID: 38997526 PMCID: PMC11364557 DOI: 10.1007/s00418-024-02308-7] [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] [Accepted: 06/28/2024] [Indexed: 07/14/2024]
Abstract
Long-term radiofrequency radiation (RFR) exposure, which adversely affects organisms, deteriorates testicular functions. Misfolding or unfolding protein accumulation in the endoplasmic reticulum (ER) initiates an intracellular reaction known as ER stress (ERS), which activates the unfolded protein response (UPR) for proteostasis. Since both RFR exposure and ERS can cause male infertility, we hypothesized that RFR exposure causes ERS to adversely affect testicular functions in rats. To investigate role of ERS in mediating RFR effects on rat testis, we established five experimental groups in male rats: control, short-term 2100-megahertz (MHz) RFR (1-week), short-term sham (sham/1-week), long-term 2100-MHz RFR (10-week), and long-term sham (sham/10-week). ERS markers Grp78 and phosphorylated PERK (p-Perk) levels and ERS-related apoptosis markers Chop and caspase 12 were investigated by immunohistochemistry, immunoblotting, and quantitative real-time polymerase chain reaction (qPCR). Long-term RFR exposure increased Grp78, p-Perk, and Chop levels, while short-term RFR exposure elevated Chop and caspase 12 levels. Chop expression was not observed in spermatogonia and primary spermatocytes, which may protect spermatogonia and primary spermatocytes against RFR-induced ERS-mediated apoptosis, thereby allowing transmission of genetic material to next generations. While short and long-term RFR exposures trigger ERS and ERS-related apoptotic pathways, further functional analyses are needed to elucidate whether this RFR-induced apoptosis has long-term male infertility effects.
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Affiliation(s)
- Esma Kirimlioglu
- Departments of Histology and Embryology, Faculty of Engineering, Akdeniz University, Antalya, Turkey.
| | - Asli Okan Oflamaz
- Departments of Histology and Embryology, Faculty of Engineering, Akdeniz University, Antalya, Turkey
- Faculty of Medicine, Department of Histology and Embryology, Bozok University, Yozgat, Turkey
| | - Enis Hidisoglu
- Departments of Biophysics, Faculty of Medicine, Faculty of Engineering, Akdeniz University, Antalya, Turkey
- Department of Drug Science, NIS Centre, University of Turin, Turin, Italy
| | - Sukru Ozen
- Department of Electrical and Electronics Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Piraye Yargicoglu
- Departments of Biophysics, Faculty of Medicine, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Necdet Demir
- Departments of Histology and Embryology, Faculty of Engineering, Akdeniz University, Antalya, Turkey
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Moghadam RK, Daraei A, Haddadi M, Mardi A, Karamali N, Rezaiemanesh A. Casting Light on the Janus-Faced HMG-CoA Reductase Degradation Protein 1: A Comprehensive Review of Its Dualistic Impact on Apoptosis in Various Diseases. Mol Neurobiol 2024; 61:6842-6863. [PMID: 38356096 DOI: 10.1007/s12035-024-03994-z] [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: 12/05/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
Nowadays, it is well recognized that apoptosis, as a highly regulated cellular process, plays a crucial role in various biological processes, such as cell differentiation. Dysregulation of apoptosis is strongly implicated in the pathophysiology of numerous disorders, making it essential to comprehend its underlying mechanisms. One key factor that has garnered significant attention in the regulation of apoptotic pathways is HMG-CoA reductase degradation protein 1, also known as HRD1. HRD1 is an E3 ubiquitin ligase located in the endoplasmic reticulum (ER) membrane. Its primary role involves maintaining the quality control of ER proteins by facilitating the ER-associated degradation (ERAD) pathway. During ER stress, HRD1 aids in the elimination of misfolded proteins that accumulate within the ER. Therefore, HRD1 plays a pivotal role in the regulation of apoptotic pathways and maintenance of ER protein quality control. By targeting specific protein substrates and affecting apoptosis-related pathways, HRD1 could be an exclusive therapeutic target in different disorders. Dysregulation of HRD1-mediated processes contributes significantly to the pathophysiology of various diseases. The purpose of this review is to assess the effect of HRD1 on the pathways related to apoptosis in various diseases from a therapeutic perspective.
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Affiliation(s)
- Reihaneh Khaleghi Moghadam
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Daneshgah Street, Shahid Shiroudi Boulevard, PO-Box: 6714869914, Kermanshah, Iran
| | - Arshia Daraei
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Daneshgah Street, Shahid Shiroudi Boulevard, PO-Box: 6714869914, Kermanshah, Iran
| | - Maryam Haddadi
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Daneshgah Street, Shahid Shiroudi Boulevard, PO-Box: 6714869914, Kermanshah, Iran
| | - Amirhossein Mardi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Karamali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Daneshgah Street, Shahid Shiroudi Boulevard, PO-Box: 6714869914, Kermanshah, Iran.
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Murata N, Nishimura K, Harada N, Kitakaze T, Yoshihara E, Inui H, Yamaji R. Insulin reduces endoplasmic reticulum stress-induced apoptosis by decreasing mitochondrial hyperpolarization and caspase-12 in INS-1 pancreatic β-cells. Physiol Rep 2024; 12:e16106. [PMID: 38884322 PMCID: PMC11181300 DOI: 10.14814/phy2.16106] [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: 05/15/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024] Open
Abstract
Pancreatic β-cell mass is a critical determinant of insulin secretion. Severe endoplasmic reticulum (ER) stress causes β-cell apoptosis; however, the mechanisms of progression and suppression are not yet fully understood. Here, we report that the autocrine/paracrine function of insulin reduces ER stress-induced β-cell apoptosis. Insulin reduced the ER-stress inducer tunicamycin- and thapsigargin-induced cell viability loss due to apoptosis in INS-1 β-cells. Moreover, the effect of insulin was greater than that of insulin-like growth factor-1 at physiologically relevant concentrations. Insulin did not attenuate the ER stress-induced increase in unfolded protein response genes. ER stress did not induce cytochrome c release from mitochondria. Mitochondrial hyperpolarization was induced by ER stress and prevented by insulin. The protonophore/mitochondrial oxidative phosphorylation uncoupler, but not the antioxidants N-acetylcysteine and α-tocopherol, exhibited potential cytoprotection during ER stress. Both procaspase-12 and cleaved caspase-12 levels increased under ER stress. The caspase-12 inhibitor Z-ATAD-FMK decreased ER stress-induced apoptosis. Caspase-12 overexpression reduced cell viability, which was diminished in the presence of insulin. Insulin decreased caspase-12 levels at the post-translational stages. These results demonstrate that insulin protects against ER stress-induced β-cell apoptosis in this cell line. Furthermore, mitochondrial hyperpolarization and increased caspase-12 levels are involved in ER stress-induced and insulin-suppressed β-cell apoptosis.
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Affiliation(s)
- Nanako Murata
- Department of Applied Biological Chemistry, Graduate School of AgricultureOsaka Metropolitan UniversitySakaiOsakaJapan
| | - Kana Nishimura
- Division of Applied Life Sciences, Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Naoki Harada
- Department of Applied Biological Chemistry, Graduate School of AgricultureOsaka Metropolitan UniversitySakaiOsakaJapan
- Division of Applied Life Sciences, Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Tomoya Kitakaze
- Department of Applied Biological Chemistry, Graduate School of AgricultureOsaka Metropolitan UniversitySakaiOsakaJapan
- Division of Applied Life Sciences, Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Eiji Yoshihara
- The Lundquist Institute for Biomedical Innovation at Harbor‐UCLA Medical CenterTorranceCaliforniaUSA
- David Geffen School of Medicine at University of California Los AngelesLos AngelesCaliforniaUSA
| | - Hiroshi Inui
- Department of Applied Biological Chemistry, Graduate School of AgricultureOsaka Metropolitan UniversitySakaiOsakaJapan
- Division of Applied Life Sciences, Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
- Department of Health and NutritionOtemae UniversityOsakaJapan
| | - Ryoichi Yamaji
- Department of Applied Biological Chemistry, Graduate School of AgricultureOsaka Metropolitan UniversitySakaiOsakaJapan
- Division of Applied Life Sciences, Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
- Center for Research and Development of BioresourcesOsaka Metropolitan UniversitySakaiOsakaJapan
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Gao Z, Janakiraman H, Xiao Y, Kang SW, Dong J, Choi J, Ogretmen B, Lee HS, Camp ER. Sphingosine-1-Phosphate Inhibition Increases Endoplasmic Reticulum Stress to Enhance Oxaliplatin Sensitivity in Pancreatic Cancer. World J Oncol 2024; 15:169-180. [PMID: 38545484 PMCID: PMC10965266 DOI: 10.14740/wjon1768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/19/2024] [Indexed: 05/02/2024] Open
Abstract
Background Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer resistant to current therapies, including oxaliplatin (Oxa). Growing evidence supports the ability of cancers to harness sphingolipid metabolism for survival. Sphingosine-1-phosphate (S1P) is an anti-apoptotic, pro-survival mediator that can influence cellular functions such as endoplasmic reticulum (ER) stress. We hypothesize that PDAC drives dysregulated sphingolipid metabolism and that S1P inhibition can enhance ER stress to improve therapeutic response to Oxa in PDAC. Methods RNA sequencing data of sphingolipid mediators from The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression Project (GTEx) datasets were analyzed. Murine and human PDAC cell lines were treated with small interfering RNA (siRNA) against sphingosine kinase-2 (SPHK2) or ABC294640 (ABC) and incubated with combinations of vehicle control or Oxa. In an orthotopic syngeneic KPC PDAC model, tumors were treated with either vehicle control, Oxa, ABC, or combination therapy. Results RNA sequencing analysis revealed multiple significantly differentially expressed sphingolipid mediators (P < 0.05). In vitro, both siRNA knockdown of SPHK2 and ABC sensitized cells to Oxa therapy (P < 0.05), and induced eukaryotic initiation factor 2α (eIF2α) and protein kinase RNA-like endoplasmic reticulum kinase (PERK) phosphorylation, hallmarks of ER stress. In vitro therapy also increased extracellular high mobility group box 1 (HMGB1) release (P < 0.05), necessary for immunogenic cell death (ICD). In vivo combination therapy increased apoptotic markers as well as the intensity of HMGB1 staining compared to control (P < 0.05). Conclusions Our evidence suggests that sphingolipid metabolism is dysregulated in PDAC. Furthermore, S1P inhibition can sensitize PDAC to Oxa therapy through increasing ER stress and can potentiate ICD induction. This highlights a potential therapeutic target for chemosensitizing PDAC as well as an adjunct for future chemoimmunotherapy strategies.
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Affiliation(s)
- Zachary Gao
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Yang Xiao
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sung Wook Kang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Comprehensive Cancer Center, Houston, TX 77030, USA
- Systems Onco-Immunology Laboratory, David J. Sugarbaker Division of Thoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jiangling Dong
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jasmine Choi
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Besim Ogretmen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Hyun-Sung Lee
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Comprehensive Cancer Center, Houston, TX 77030, USA
- Systems Onco-Immunology Laboratory, David J. Sugarbaker Division of Thoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ernest Ramsay Camp
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Comprehensive Cancer Center, Houston, TX 77030, USA
- Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
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Singh R, Kaur N, Choubey V, Dhingra N, Kaur T. Endoplasmic reticulum stress and its role in various neurodegenerative diseases. Brain Res 2024; 1826:148742. [PMID: 38159591 DOI: 10.1016/j.brainres.2023.148742] [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: 08/18/2023] [Revised: 12/07/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
The Endoplasmic reticulum (ER), a critical cellular organelle, maintains cellular homeostasis by regulating calcium levels and orchestrating essential functions such as protein synthesis, folding, and lipid production. A pivotal aspect of ER function is its role in protein quality control. When misfolded proteins accumulate within the ER due to factors like protein folding chaperone dysfunction, toxicity, oxidative stress, or inflammation, it triggers the Unfolded protein response (UPR). The UPR involves the activation of chaperones like calnexin, calreticulin, glucose-regulating protein 78 (GRP78), and Glucose-regulating protein 94 (GRP94), along with oxidoreductases like protein disulphide isomerases (PDIs). Cells employ the Endoplasmic reticulum-associated degradation (ERAD) mechanism to counteract protein misfolding. ERAD disruption causes the detachment of GRP78 from transmembrane proteins, initiating a cascade involving Inositol-requiring kinase/endoribonuclease 1 (IRE1), Activating transcription factor 6 (ATF6), and Protein kinase RNA-like endoplasmic reticulum kinase (PERK) pathways. The accumulation and deposition of misfolded proteins within the cell are hallmarks of numerous neurodegenerative diseases. These aberrant proteins disrupt normal neuronal signalling and contribute to impaired cellular homeostasis, including oxidative stress and compromised protein degradation pathways. In essence, ER stress is defined as the cellular response to the accumulation of misfolded proteins in the endoplasmic reticulum, encompassing a series of signalling pathways and molecular events that aim to restore cellular homeostasis. This comprehensive review explores ER stress and its profound implications for the pathogenesis and progression of neurodegenerative diseases.
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Affiliation(s)
- Rimaljot Singh
- Department of Biophysics, Panjab University Chandigarh, India
| | - Navpreet Kaur
- Department of Biophysics, Panjab University Chandigarh, India
| | - Vinay Choubey
- Department of Pharmacology, University of Tartu, Ravila 19, 51014 Tartu, Estonia
| | - Neelima Dhingra
- University Institute of Pharmaceutical Sciences, Panjab University Chandigarh, India
| | - Tanzeer Kaur
- Department of Biophysics, Panjab University Chandigarh, India.
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Nilofar, Duran T, Uba AI, Cvetanović Kljakić A, Božunović J, Gašić U, Bouyahya A, Yıldiztugay E, Ferrante C, Zengin G. Extractions of aerial parts of Hippomarathrum scabrum with conventional and green methodologies: Chemical profiling, antioxidant, enzyme inhibition, and anti-cancer effects. J Sep Sci 2024; 47:e2300678. [PMID: 37994215 DOI: 10.1002/jssc.202300678] [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: 09/14/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023]
Abstract
Hippomarathrum scabrum L. is an endemic medicinal plant in Turkey; however, there have been few studies investigating the phytochemistry and biological properties of these plants has not been investigated. The aim of this work is to determine the chemical composition of different extracts (extracts obtained by using supercritical carbon dioxide extraction, accelerated solvent extraction, homogenizer-assisted extraction, microwave-assisted extraction, and ultrasound-assisted extraction from Hippomarathrum scabrum L., and evaluate their biological properties. The analysis revealed that 5-O-caffeoylquinic acid, rutin, and isorhamnetin 3-O-rutinoside were the main bioactive compounds. The extract obtained by accelerated extraction contains the highest concentration of 5-O-Caffeoylquinic acid (7616.74 ± 63.09 mg/kg dry extract) followed by the extract obtained by homogenizer-assisted extraction (6682.53 ± 13.04 mg/kg dry extract). In antioxidant tests, all extracts expressed significant antioxidant activity. Also, cytotoxic and anticancer effects of these plant extracts were detected in the human prostate cancer cell line. Intrinsic apoptotic genes were up-regulated and anti-apoptotic genes were down-regulated in human prostate cancer cells after inhibition concentration dose treatment. The findings are promising, and suggest the use of these plant extracts could be used as natural sources with different biological activities, as well as anticancer agents.
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Affiliation(s)
- Nilofar
- Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
- Department of Pharmacy, Botanic Garden "Giardino dei Semplici", Università degli Studi "Gabriele d'Annunzio", Chieti, Italy
| | - Tugce Duran
- Department of Medical Genetics, Faculty of Medicine, KTO Karatay University, Konya, Turkey
| | - Abdullahi Ibrahim Uba
- Department of Molecular Biology and Genetics, Istanbul AREL University, Istanbul, Turkey
| | | | - Jelena Božunović
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Uroš Gašić
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morroco
| | - Evren Yıldiztugay
- Department of Biotechnology, Science Faculty, Selcuk University, Konya, Turkey
| | - Claudio Ferrante
- Department of Pharmacy, Botanic Garden "Giardino dei Semplici", Università degli Studi "Gabriele d'Annunzio", Chieti, Italy
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
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Komlao P, Kraiwattanapirom N, Promyo K, Hein ZM, Chetsawang B. Melatonin enhances the restoration of neurological impairments and cognitive deficits during drug withdrawal in methamphetamine-induced toxicity and endoplasmic reticulum stress in rats. Neurotoxicology 2023; 99:305-312. [PMID: 37979660 DOI: 10.1016/j.neuro.2023.11.006] [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: 07/18/2023] [Revised: 11/04/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
Methamphetamine (METH) is a psychostimulant with a very high addiction rate. Prolonged use of METH has been observed as one of the root causes of neurotoxicity. Melatonin (Mel) has been found to have a significant role in METH-induced neurotoxicity. This study aimed to investigate the restorative effect of Mel on behavioral flexibility in METH-induced cognitive deficits. Male Sprague-Dawley rats were randomly assigned to be intraperitoneally injected with saline (control) or Meth at 5 mg/kg for 7 consecutive days. Then, METH injection was withdrawn and rats in each group were subcutaneously injected with saline or Mel at 10 mg/kg for 14 consecutive days. The stereotypic behavioral test and attentional set-shifting task (ASST) were used to evaluate neurological functions and cognitive flexibility, respectively. Rats developed abnormal features of stereotyped behaviors and deficits in cognitive flexibility after 7 days of METH administration. However, post-treatment with Mel for 14 days after METH withdrawal dramatically ameliorated the neurological and cognitive deficits in METH-treated rats. Blood biomarkers indicated METH-induced systemic low-grade inflammation. Moreover, METH-induced endoplasmic reticulum (ER) stress in the prefrontal cortex was diminished by melatonin supplementation. These findings might reveal the therapeutic potential of Mel in METH toxicity-induced neurological and cognitive deficits.
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Affiliation(s)
- Pongphat Komlao
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, PO Box 616, 6200 MD Maastricht, Netherlands
| | - Natcharee Kraiwattanapirom
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhonpathom 73170, Thailand
| | - Kitipong Promyo
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Zaw Myo Hein
- Basic Medical Sciences Department, College of Medicine and Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Banthit Chetsawang
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhonpathom 73170, Thailand.
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Zhang X, Liu B, Lal K, Liu H, Tran M, Zhou M, Ezugwu C, Gao X, Dang T, Au ML, Brown E, Wu H, Liao Y. Antioxidant System and Endoplasmic Reticulum Stress in Cataracts. Cell Mol Neurobiol 2023; 43:4041-4058. [PMID: 37874455 PMCID: PMC10842247 DOI: 10.1007/s10571-023-01427-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 10/14/2023] [Indexed: 10/25/2023]
Abstract
The primary underlying contributor for cataract, a leading cause of vision impairment and blindness worldwide, is oxidative stress. Oxidative stress triggers protein damage, cell apoptosis, and subsequent cataract formation. The nuclear factor-erythroid 2-related factor 2 (Nrf2) serves as a principal redox transcriptional factor in the lens, offering a line of defense against oxidative stress. In response to oxidative challenges, Nrf2 dissociates from its inhibitor, Kelch-like ECH-associated protein 1 (Keap1), moves to the nucleus, and binds to the antioxidant response element (ARE) to activate the Nrf2-dependent antioxidant system. In parallel, oxidative stress also induces endoplasmic reticulum stress (ERS). Reactive oxygen species (ROS), generated during oxidative stress, can directly damage proteins, causing them to misfold. Initially, the unfolded protein response (UPR) activates to mitigate excessive misfolded proteins. Yet, under persistent or severe stress, the failure to rectify protein misfolding leads to an accumulation of these aberrant proteins, pushing the UPR towards an apoptotic pathway, further contributing to cataractogenesis. Importantly, there is a dynamic interaction between the Nrf2 antioxidant system and the ERS/UPR mechanism in the lens. This interplay, where ERS/UPR can modulate Nrf2 expression and vice versa, holds potential therapeutic implications for cataract prevention and treatment. This review explores the intricate crosstalk between these systems, aiming to illuminate strategies for future advancements in cataract prevention and intervention. The Nrf2-dependent antioxidant system communicates and cross-talks with the ERS/UPR pathway. Both mechanisms are proposed to play pivotal roles in the onset of cataract formation.
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Affiliation(s)
- Xi Zhang
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Bingqing Liu
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Kevin Lal
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Haihua Liu
- Peking University First Hospital, Beijing, China
| | - Myhoa Tran
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Manyu Zhou
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Chimdindu Ezugwu
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Xin Gao
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Terry Dang
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - My-Lien Au
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Erica Brown
- School of Medicine, Texas Christian University and University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Hongli Wu
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX, USA.
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA.
| | - Yan Liao
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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9
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Bonsignore G, Martinotti S, Ranzato E. Endoplasmic Reticulum Stress and Cancer: Could Unfolded Protein Response Be a Druggable Target for Cancer Therapy? Int J Mol Sci 2023; 24:ijms24021566. [PMID: 36675080 PMCID: PMC9865308 DOI: 10.3390/ijms24021566] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/04/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Unfolded protein response (UPR) is an adaptive response which is used for re-establishing protein homeostasis, and it is triggered by endoplasmic reticulum (ER) stress. Specific ER proteins mediate UPR activation, after dissociation from chaperone Glucose-Regulated Protein 78 (GRP78). UPR can decrease ER stress, producing an ER adaptive response, block UPR if ER homeostasis is restored, or regulate apoptosis. Some tumour types are linked to ER protein folding machinery disturbance, highlighting how UPR plays a pivotal role in cancer cells to keep malignancy and drug resistance. In this review, we focus on some molecules that have been revealed to target ER stress demonstrating as UPR could be a new target in cancer treatment.
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Carotenuto P, Romano A, Barbato A, Quadrano P, Brillante S, Volpe M, Ferrante L, Tammaro R, Morleo M, De Cegli R, Iuliano A, Testa M, Andreone F, Ciliberto G, Clery E, Troncone G, Palma G, Arra C, Barbieri A, Capone M, Madonna G, Ascierto PA, Lanfrancone L, Indrieri A, Franco B. Targeting the MITF/APAF-1 axis as salvage therapy for MAPK inhibitors in resistant melanoma. Cell Rep 2022; 41:111601. [DOI: 10.1016/j.celrep.2022.111601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 02/09/2022] [Accepted: 10/13/2022] [Indexed: 11/09/2022] Open
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Bhardwaj R, Bhardwaj A, Dhawan DK, Tandon C, Kaur T. 4-PBA rescues hyperoxaluria induced nephrolithiasis by modulating urinary glycoproteins: Cross talk between endoplasmic reticulum, calcium homeostasis and mitochondria. Life Sci 2022; 305:120786. [PMID: 35809664 DOI: 10.1016/j.lfs.2022.120786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 12/15/2022]
Abstract
AIM Urinary glycoproteins such as Tamm Horsfall Protein (THP) and Osteopontin (OPN) are well established key regulators of renal stone formation. Additionally, recent revelations have highlighted the influence of Endoplasmic Reticulum (ER) and mitochondria of crucial importance in nephrolithiasis. However, till date conclusive approach highlighting the influence of ER stress on urinary glycoproteins and chaperone in nephrolithiasis remains elusive. Therefore, the present study was focussed on deciphering the possible effect of 4-PBA mitigating ER stress on urinary glycoproteins and calnexin (chaperone) with emphasis on interlinking calcium homeostasis in hyperoxaluric rats. MATERIAL AND METHODS Post 9 days of treatment, animals were sacrificed, and renal tissues were investigated for urinary glycoproteins, calnexin, calcium homeostasis, ER environment, redox status, and mitochondrial linkage. KEY FINDINGS 4-PBA appreciably reversed the altered levels of THP, OPN, and calnexin observed along with curtailing the disrupted calcium homeostasis when assessed for SERCA activity and intra-cellular calcium levels. Additionally, significant improvement in the perturbed ER environment as verified by escalated ER stress markers, disturbed protein folding-aggregation-degradation (congo red assay) pathway, and redox status was found post 4-PBA intervention. Interestingly, linkage of ER stress and mitochondria was established under hyperoxaluric conditions when assessed for protein levels of VDAC1 and GRP75. SIGNIFICANCE 4-PBA treatment resulted in rectifying the repercussions of ER-mitochondrial caused distress when assessed for protein folding/aggregation/degradation events along with disturbed calcium homeostasis. The present study advocates the necessity to adopt a holistic vision towards hyperoxaluria with emphasis on glycoproteins and ER environment.
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Affiliation(s)
- Rishi Bhardwaj
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Ankita Bhardwaj
- Department of Biophysics, Panjab University, Chandigarh, India
| | | | | | - Tanzeer Kaur
- Department of Biophysics, Panjab University, Chandigarh, India.
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12
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Biological Effects and Mechanisms of Caspases in Early Brain Injury after Subarachnoid Hemorrhage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3345637. [PMID: 35847583 PMCID: PMC9277153 DOI: 10.1155/2022/3345637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/22/2022] [Indexed: 12/12/2022]
Abstract
Caspases are an evolutionarily conserved family of proteases responsible for mediating and initiating cell death signals. In the past, the dysregulated activation of caspases was reported to play diverse but equally essential roles in neurodegenerative diseases, such as brain injury and neuroinflammatory diseases. A subarachnoid hemorrhage (SAH) is a traumatic event that is either immediately lethal or induces a high risk of stroke and neurological deficits. Currently, the prognosis of SAH after treatment is not ideal. Early brain injury (EBI) is considered one of the main factors contributing to the poor prognosis of SAH. The mechanisms of EBI are complex and associated with oxidative stress, neuroinflammation, blood-brain barrier disruption, and cell death. Based on mounting evidence, caspases are involved in neuronal apoptosis or death, endothelial cell apoptosis, and increased inflammatory cytokine-induced by apoptosis, pyroptosis, and necroptosis in the initial stages after SAH. Caspases can simultaneously mediate multiple death modes and regulate each other. Caspase inhibitors (including XIAP, VX-765, and Z-VAD-FMK) play an essential role in ameliorating EBI after SAH. In this review, we explore the related pathways mediated by caspases and their reciprocal regulation patterns after SAH. Furthermore, we focus on the extensive crosstalk of caspases as a potential area of research on therapeutic strategies for treating EBI after SAH.
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13
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Caspase-mediated regulation of the distinct signaling pathways and mechanisms in neuronal survival. Int Immunopharmacol 2022; 110:108951. [PMID: 35717837 DOI: 10.1016/j.intimp.2022.108951] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 02/06/2023]
Abstract
Caspases are intimately associated with altering various signaling pathways, resulting in programmed cell death or apoptosis. Apoptosis is necessary for the normal homeostasis of cells and their development. The untoward activation of apoptotic pathways indirectly or directly results in pathologies of various diseases. Identifying different caspases in apoptotic pathways directed the research to develop caspase inhibitors as therapeutic agents. However, no drug is available in the market that targets caspase inhibition and produces a therapeutic effect. Here, we will shed light on the role of caspases in the number of neuronal disorders and neurodegenerative diseases. The article reviews the findings about the activation of various upstream mechanisms associated with caspases in neurodegenerative disorders along with the recent progress in the generation of caspase inhibitors and the challenge faced in their development as therapeutic agents for neurological indications.
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14
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Banerjee DK, Seijo Lebrón A, Baksi K. Glycotherapy: A New Paradigm in Breast Cancer Research. Biomolecules 2022; 12:biom12040487. [PMID: 35454076 PMCID: PMC9026886 DOI: 10.3390/biom12040487] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is an ancient disease recognized first by the Egyptians as early as 1600 BC. The first cancer-causing gene in a chicken tumor virus was found in 1970. The United States signed the National Cancer Act in 1971, authorizing federal funding for cancer research. Irrespective of multi-disciplinary approaches, diverting a great deal of public and private resources, breast cancer remains at the forefront of human diseases, affecting as many as one in eight women during their lifetime. Because of overarching challenges and changes in the breast cancer landscape, five-year disease-free survival is no longer considered adequate. The absence of a cure, and the presence of drug resistance, severe side effects, and destruction of the patient’s quality of life, as well as the fact that therapy is often expensive, making it unaffordable to many, have created anxiety among patients, families, and friends. One of the reasons for the failure of cancer therapeutics is that the approaches do not consider cancer holistically. Characteristically, all breast cancer cells and their microenvironmental capillary endothelial cells express asparagine-linked (N-linked) glycoproteins with diverse structures. We tested a small biological molecule, Tunicamycin, that blocks a specific step of the protein N-glycosylation pathway in the endoplasmic reticulum (ER), i.e., the catalytic activity of N-acetylglusosaminyl 1-phosphate transferase (GPT). The outcome was overwhelmingly exciting. Tunicamycin quantitatively inhibits angiogenesis in vitro and in vivo, and inhibits the breast tumor progression of multiple subtypes in pre-clinical mouse models with “zero” toxicity. Mechanistic details support ER stress-induced unfolded protein response (upr) signaling as the cause for the apoptotic death of both cancer and the microvascular endothelial cells. Additionally, it interferes with Wnt signaling. We therefore conclude that Tunicamycin can be expected to supersede the current therapeutics to become a glycotherapy for treating breast cancer of all subtypes.
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Affiliation(s)
- Dipak K. Banerjee
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA;
- Correspondence:
| | - Arelis Seijo Lebrón
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA;
| | - Krishna Baksi
- Department of Anatomy and Cell Biology, School of Medicine, Universidad Central del Caribe, Bayamon, PR 00960-3001, USA;
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15
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Prasad V, Greber UF. The endoplasmic reticulum unfolded protein response - homeostasis, cell death and evolution in virus infections. FEMS Microbiol Rev 2021; 45:fuab016. [PMID: 33765123 PMCID: PMC8498563 DOI: 10.1093/femsre/fuab016] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Viruses elicit cell and organismic stress, and offset homeostasis. They trigger intrinsic, innate and adaptive immune responses, which limit infection. Viruses restore homeostasis by harnessing evolutionary conserved stress responses, such as the endoplasmic reticulum (ER) unfolded protein response (UPRER). The canonical UPRER restores homeostasis based on a cell-autonomous signalling network modulating transcriptional and translational output. The UPRER remedies cell damage, but upon severe and chronic stress leads to cell death. Signals from the UPRER flow along three branches with distinct stress sensors, the inositol requiring enzyme (Ire) 1, protein kinase R (PKR)-like ER kinase (PERK), and the activating transcription factor 6 (ATF6). This review shows how both enveloped and non-enveloped viruses use the UPRER to control cell stress and metabolic pathways, and thereby enhance infection and progeny formation, or undergo cell death. We highlight how the Ire1 axis bypasses apoptosis, boosts viral transcription and maintains dormant viral genomes during latency and persistence periods concurrent with long term survival of infected cells. These considerations open new options for oncolytic virus therapies against cancer cells where the UPRER is frequently upregulated. We conclude with a discussion of the evolutionary impact that viruses, in particular retroviruses, and anti-viral defense has on the UPRER.
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Affiliation(s)
- Vibhu Prasad
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Urs F Greber
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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16
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Rezghi Barez S, Movahedian Attar A, Aghaei M. MicroRNA-30c-2-3p regulates ER stress and induces apoptosis in ovarian cancer cells underlying ER stress. EXCLI JOURNAL 2021; 20:922-934. [PMID: 34121978 PMCID: PMC8192875 DOI: 10.17179/excli2020-2970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 05/19/2021] [Indexed: 12/11/2022]
Abstract
Ovarian cancer is a common gynecologic cancer with a high rate of recurrence, drug resistance, and mortality, thereby necessitating novel molecular target therapies. Ovarian cancer as a solid tumor has constantly been challenged by endoplasmic reticulum stress (ERS). Currently, XBP1 as a therapeutic target in solid tumors plays a key role in adaptation to ERS. Single-stranded RNAs usually modulate posttranscriptional of the gene activity. miR-30c-2-3p has been demonstrated to inhibit the expression of XBP1. Here, we evaluated the effect of miR-30c-2-3p on controlling XBP1-CHOP-BIM and its apoptotic effects on ovarian cancer cell lines during ERS. The ER stress was assessed using Thioflavin T staining in OVCAR3 and SKOV3 cells. The expression of ER stress genes was measured by QRT-PCR. The protein levels of XBP1(s), BIP/GRP78, CHOP, and BIM were evaluated using Western blotting. Cell viability and apoptosis in STF-083010 and Tunicamycin (Tm) co-treated cells were evaluated using BrdU, MTT, Annexin V-FITC/PI staining, and caspase-12 and -3 activities assays. We found that miR-30c-2-3p significantly decreased the folding capacity of ER, leading to ERS intensification (P<0.05). Additionally, the Western blot analysis showed the modest up-regulation of CHOP and BIM with pro-apoptotic activity and down-regulation of the BIP protein. Furthermore, mimic miR-30c-2-3p transfection not only decreased cell proliferation but also induced cell death in ovarian cancer cells in response to the Tm-treatment. Our results indicated that the apoptotic pathway was induced possibly through activation of caspases -12 and -3 and elevation of the Bax/Bcl-2 ratio. Overall, the present paper adds new evidence to the possible treatment of miR-30c-2-3p via impeding the XBP1 transcription in ovarian cancer cells provoking apoptotic pathways by XBP1/CHOP/BIM mediators.
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Affiliation(s)
- Shekufe Rezghi Barez
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Movahedian Attar
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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17
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Wen Y, Zong S, Liu T, Du P, Li H, Xiao H. Tauroursodeoxycholic acid attenuates cisplatin-induced ototoxicity by inhibiting the accumulation and aggregation of unfolded or misfolded proteins in the endoplasmic reticulum. Toxicology 2021; 453:152736. [PMID: 33631298 DOI: 10.1016/j.tox.2021.152736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/16/2021] [Accepted: 02/20/2021] [Indexed: 02/06/2023]
Abstract
Cisplatin-induced ototoxicity is one of the important reasons that limit the drug's clinical application, and its mechanism has not been fully elucidated so far. The aim of this study was to explore the attenuate effect of tauroursodeoxycholic acid (TUDCA), a proteostasis promoter, on cisplatin-induced ototoxicity in vivo and in vitro, and to explore its possible mechanism. Auditory brainstem response (ABR) was measured to identify the attenuate effects of TUDCA administered subcutaneously [500 mg/kg/d × 3d, cisplatin: 4.6 mg/kg/d × 3d, intraperitoneal injection (i.p.)] or trans-tympanically (0.5 mg/mL, cisplatin: 12 mg/kg, i.p. with a pump) in Sprague-Dawley (SD) rats subjected to cisplatin-induced hearing loss. The cochlear explants of neonatal rats and OC1 auditory hair cell-like cell lines cultured in vitro were used to observe the number of apoptotic cells and the endoplasmic reticulum (ER) stress in the control, cisplatin (5 μM for 48 h for cochlear explants, 10 μM for 24 h for OC1 cells), and cisplatin + TUDCA (1 mM for 24 h for cochlear explants, 1.6 mM for 24 h for OC1 cells) groups. Differences in the expression of key proteins in the ER protein quality control (ERQC) system were detected. The changes in the attenuate effect of TUDCA on cisplatin-induced ototoxicity after down-regulating calreticulin (CRT), UDP-glucose ceramide glucosyltransferase-like 1 (UGGT1), and OS9 ER lectin (OS9) were also measured. The effect of TUDCA (10 mM) on stabilizing unfolded or misfolded proteins (UFP/MFP) was analyzed in a cell-free 0.2 % bovine serum albumin (BSA) aggregation system in vitro. Both the subcutaneous and trans-tympanic TUDCA administration alleviated cisplatin-induced increase in ABR thresholds in rats. TUDCA was able to reduce cisplatin-induced apoptosis and alleviate ER stress in cochlear explants and OC1 cells. Under the cisplatin treatment, the expression levels of CRT, UGGT1, and OS9 in the auditory hair cell increased, and the expression of total ubiquitinated proteins decreased. TUDCA attenuated the effect of cisplatin on UGGT1 and OS9, and recovered the protein ubiquitination levels. After down-regulating CRT, UGGT1, or OS9, the protective effect of TUDCA decreased. In the cell-free experimental system, TUDCA inhibited the aggregation of denatured BSA molecules. In summary, TUDCA can attenuate cisplatin-induced ototoxicity, possibly by inhibiting the accumulation and aggregation of UFP/MFP and the associated ER stress.
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Affiliation(s)
- Yingying Wen
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shimin Zong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tianyi Liu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peiyu Du
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hao Li
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hongjun Xiao
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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18
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Promyo K, Iqbal F, Chaidee N, Chetsawang B. Aluminum chloride-induced amyloid β accumulation and endoplasmic reticulum stress in rat brain are averted by melatonin. Food Chem Toxicol 2020; 146:111829. [PMID: 33130240 DOI: 10.1016/j.fct.2020.111829] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/19/2020] [Accepted: 10/25/2020] [Indexed: 01/18/2023]
Abstract
Accumulation of aluminium (Al) in the brain is known to be a toxic insult that result in neurodegenerative diseases and melatonin is known to have neuroprotective role. The present study was designed to investigate the neuroprotective effects of melatonin for aluminium chloride (AlCl3)-induced neurotoxicity in rats. Twelve-week old male Wistar rats were orally received 175 mg/kg AlCl3 with or without 5 mg/kg melatonin intraperitoneal pretreatment. Group 3 intraperitoneally recieved 5 mg/kg melatonin and group 4 rats were orally treated with saline solution for 8 weeks. A series of behavioral tests, biochemical analysis and expression of AD-associated proteins in the brain were determined after 7 weeks of all treatments. Our results indicated that AlCl3 treatment tends to induce memory and cognitive impairment. However, melatonin treatment attenuated amyloid beta (Aβ) (1-42) level by decreasing β-secretase, augmented low-density lipoprotein receptor-related protein 1, and neprilysin protein expression. Moreover, AlCl3 -induced endoplasmic reticulum (ER) stress and oxidative stress was attenuated by melatonin supplementation. In conclusion, these findings demonstrate a protective role of melatonin against Aβ peptide accumulation, ER stress and oxidative stress in the AlCl3 -treated AD model. Hence, the melatonin supplement might be an alternative way to alleviate the development of AD.
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Affiliation(s)
- Kitipong Promyo
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand; School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Furhan Iqbal
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand; Institute of Pure and Applied Biology, Zoology division, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Nutthika Chaidee
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand
| | - Banthit Chetsawang
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand.
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19
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Iurova E, Beloborodov E, Tazintseva E, Fomin A, Shutov A, Slesarev S, Saenko Y, Saenko Y. Arthropod toxins inhibiting Ca 2+ and Na + channels prevent AC-1001 H3 peptide-induced apoptosis. J Pept Sci 2020; 27:e3288. [PMID: 33073468 DOI: 10.1002/psc.3288] [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: 02/28/2020] [Revised: 08/26/2020] [Accepted: 09/06/2020] [Indexed: 11/06/2022]
Abstract
Peptide toxins of arthropods are one of the potential sources of bioactive substances. Toxins are able to bind to calcium channels and block them. Ca2+ ions play an important role in many cell processes, in particular, in apoptosis. In this work, we study the effect of some arthropod toxins on intracellular processes associated with the induction of apoptosis. Synthetic analogs of U5 -scytotoxin-Sth1a, ω-hexatoxin-Hv1a, ω-theraphotoxin-Hhn2a, and μ-agatoxin-Aa1a toxins-inhibitors of calcium L, P, and Q channels and sodium channels were used in the study. Apoptosis was induced by AC-1001 H3 peptide. We study the effect of toxins on the level of apoptosis, ROS, mitochondrial potential, GSH, and ATP in CHO-K1 cells. We show that all the tested toxins are able to dose dependently block the induction of apoptosis triggered by AC-1001 H3 and reduce the level of natural apoptosis in CHO-K1 cells. Cell incubation with apoptosis inducer AC-1001 H3 in the presence and absence of toxins causes an increase in the intracellular concentrations of ROS, ATP, and mitochondrial potential and decreases the GSH concentration. The present study reveals the antiapoptotic effect of a number of arthropod peptide toxins. The toxins studied can represent a novel approach used in the treatment of pathologies associated with the activation of apoptotic mechanisms.
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Affiliation(s)
- Elena Iurova
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
| | - Evgenii Beloborodov
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
| | - Elizaveta Tazintseva
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
| | - Aleksandr Fomin
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
| | - Alexander Shutov
- Department of Internal Medicine, Medical Faculty, Ulyanovsk State University, Ulyanovsk, Russia
| | - Sergei Slesarev
- Department of Biology, Ecology and Natural Resources Management, Faculty of Ecology, Ulyanovsk State University, Ulyanovsk, Russia
| | - Yana Saenko
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
| | - Yury Saenko
- S. P. Kapitsa Technological Research Institute, Ulyanovsk State University, Ulyanovsk, Russia
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20
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Xu H, Liu G, Gu H, Wang J, Li Y. Glutamine protects intestine against ischemia-reperfusion injury by alleviating endoplasmic reticulum stress induced apoptosis in rats. Acta Cir Bras 2020; 35:e202000104. [PMID: 32159588 PMCID: PMC7065443 DOI: 10.1590/s0102-865020200010000004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/08/2019] [Indexed: 12/24/2022] Open
Abstract
Purpose Glutamine, as an essential part of enteral nutrition and parenteral nutrition agent, has been widely recognized to be a kind of important intestinal mucosa protectant in clinical practice and experimental research. However, the mechanisms of its protective effects are still not fully understand. Consequently, this study aimed to explore the potential mechanism of glutamine on ischemia-reperfusion (I/R) injury induced endoplasmic reticulum (ER) stress in intestine. Methods An experimental model of intestinal I/R in rats was established by 1 hour occlusion of the superior mesenteric artery followed by 3 hours of reperfusion. Morphologic changes of intestinal mucosa, apoptosis of epithelial cells, and expression of intestinal Grp78, Gadd153, Caspase-12, ATF4, PERK phosphorylation (P-PERK) and elF2αphosphorylation(P-elF2α) were determined. Results After I/R, the apoptotic index of intestinal mucosa epithelial cells observably increased with notable necrosis of intestinal mucosa, and the expressions of Grp78, Gadd153, Caspase-12, ATF4, P-PERK and P-elF2αall were increased. However, treatment with glutamine could significantly relieve intestinal I/R injury and apoptosis index. Moreover, glutamine could clearly up-regulate the expression of Grp78, restrain P-PERK and P-elF2α, and reduce ATF4, Gadd153 and Caspase-12 expressions. Conclusion Glutamine may be involved in alleviating ER stress induced intestinal mucosa cells apoptosis.
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Affiliation(s)
- Hao Xu
- People’s Hospital of Kaizhou District, China
| | | | | | | | - Yang Li
- Chongqing Medical University, China
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21
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Abstract
The mammalian Golgi apparatus is a highly dynamic organelle, which is normally localized in the juxtanuclear space and plays an essential role in the regulation of cellular homeostasis. While posttranslational modification of cargo is mediated by the resident enzymes (glycosyltransferases, glycosidases, and kinases), the ribbon structure of Golgi and its cisternal stacking mostly rely on the cooperation of coiled-coil matrix golgins. Among them, giantin, GM130, and GRASPs are unique, because they form a tripartite complex and serve as Golgi docking sites for cargo delivered from the endoplasmic reticulum (ER). Golgi undergoes significant disorganization in many pathologies associated with a block of the ER-to-Golgi or intra-Golgi transport, including cancer, different neurological diseases, alcoholic liver damage, ischemic stress, viral infections, etc. In addition, Golgi fragments during apoptosis and mitosis. Here, we summarize and analyze clinically relevant observations indicating that Golgi fragmentation is associated with the selective loss of Golgi residency for some enzymes and, conversely, with the relocation of some cytoplasmic proteins to the Golgi. The central concept is that ER and Golgi stresses impair giantin docking site but have no impact on the GM130-GRASP65 complex, thus inducing mislocalization of giantin-sensitive enzymes only. This cardinally changes the processing of proteins by eliminating the pathways controlled by the missing enzymes and by activating the processes now driven by the GM130-GRASP65-dependent proteins. This type of Golgi disorganization is different from the one induced by the cytoskeleton alteration, which despite Golgi de-centralization, neither impairs function of golgins nor alters trafficking.
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Affiliation(s)
- A Petrosyan
- College of Medicine, Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA. .,The Nebraska Center for Integrated Biomolecular Communication, Lincoln, NE 68588, USA.,The Fred and Pamela Buffett Cancer Center, Omaha, NE 68106, USA
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22
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Kim KY, Hwang SK, Park SY, Kim MJ, Jun DY, Kim YH. l-Serine protects mouse hippocampal neuronal HT22 cells against oxidative stress-mediated mitochondrial damage and apoptotic cell death. Free Radic Biol Med 2019; 141:447-460. [PMID: 31326607 DOI: 10.1016/j.freeradbiomed.2019.07.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 12/20/2022]
Abstract
The cytoprotective mechanism of l-serine against oxidative stress-mediated neuronal apoptosis was investigated in mouse hippocampal neuronal HT22 cells. Treatment with the reactive oxygen species (ROS) inducer 2,3-dimethoxy-1,4-naphthoquinone (DMNQ) increased cytosolic and mitochondrial ROS and apoptosis, without necrosis, in HT22 cells. ROS-mediated apoptosis was accompanied by the induction of the endoplasmic reticulum (ER) stress-mediated apoptotic pathway, involving CHOP/GADD153 upregulation, JNK and p38 MAPK activation, and caspase-12 and caspase-8 activation, and subsequent induction of the mitochondrial apoptotic pathway through BAK and BAX activation, mitochondrial membrane potential (Δψm) loss, caspase-9 and caspase-3 activation, PARP cleavage, and nucleosomal DNA fragmentation. However, the DMNQ-caused ROS elevation and ER stress- and mitochondrial damage-induced apoptotic events were dose-dependently suppressed by co-treatment with l-serine (7.5-20 mM). Although DMNQ reduced both the intracellular glutathione (GSH) level and the ratios of reduced GSH to oxidized GSH (GSSG), the reduction was restored by co-treatment with l-serine. Co-treatment with GSH or N-acetylcysteine also blocked DMNQ-caused ROS elevation and apoptosis; however, co-treatment with the GSH synthesis inhibitor buthionine sulfoximine significantly promoted ROS-mediated apoptosis and counteracted the protection by l-serine. In HT22 cells, DMNQ treatment appeared to tilt the mitochondrial fusion-fission balance toward fission by down-regulating the levels of profusion proteins (MFN1/2 and OPA1) and inhibitory phosphorylation of profission protein DRP1 at Ser-637, resulting in mitochondrial fragmentation. These DMNQ-caused alterations were prevented by l-serine. A comparison of mitochondrial energetic function between DMNQ- and DMNQ/l-serine-treated HT22 cells showed that the DMNQ-caused impairment of the mitochondrial energy generation capacity was restored by l-serine. These results demonstrate that l-serine can protect neuronal cells against oxidative stress-mediated apoptotic cell death by contributing to intracellular antioxidant GSH synthesis and maintaining the mitochondrial fusion-fission balance.
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Affiliation(s)
- Ki Yun Kim
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, South Korea
| | - Su-Kyeong Hwang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Shin Young Park
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, South Korea
| | - Min Ju Kim
- Astrogen Inc., Techno-Building 313, Kyungpook National University, Daegu, 41566, South Korea
| | - Do Youn Jun
- Astrogen Inc., Techno-Building 313, Kyungpook National University, Daegu, 41566, South Korea
| | - Young Ho Kim
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, South Korea.
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Ahmed K, Zaidi SF, Cui ZG, Zhou D, Saeed SA, Inadera H. Potential proapoptotic phytochemical agents for the treatment and prevention of colorectal cancer. Oncol Lett 2019; 18:487-498. [PMID: 31289520 PMCID: PMC6540497 DOI: 10.3892/ol.2019.10349] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/11/2019] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of mortality among men and women. Chemo-resistance, adverse effects and disease recurrence are major challenges in the development of effective cancer therapeutics. Substantial literature on this subject highlights that populations consuming diets rich in fibers, fruits and vegetables have a significantly reduced incidence rate of CRC. This chemo-preventive effect is primarily associated with the presence of phytochemicals in the dietary components. Plant-derived chemical agents act as a prominent source of novel compounds for drug discovery. Phytochemicals have been the focus of an increasing number of studies due to their ability to modulate carcinogenic processes through the alteration of multiple cancer cell survival pathways. Despite promising results from experimental studies, only a limited number of phytochemicals have entered into clinical trials. The purpose of the current review is to compile previously published pre-clinical and clinical evidence of phytochemicals in cases of CRC. A PubMed, Google Scholar and Science Direct search was performed for relevant articles published between 2008-2018 using the following key terms: 'Phytochemicals with colorectal cancers', 'apoptosis', 'cell cycle', 'reactive oxygen species' and 'clinical anticancer activities'. The present review may aid in identifying the most investigated phytochemicals in CRC cells, and due to the limited number of studies that make it from the laboratory bench to clinical trial stage, may provide a novel foundation for future research.
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Affiliation(s)
- Kanwal Ahmed
- Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah 21423, Saudi Arabia
- King Abdullah International Medical Research Center, Jeddah 21423, Saudi Arabia
| | - Syed Faisal Zaidi
- Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah 21423, Saudi Arabia
- King Abdullah International Medical Research Center, Jeddah 21423, Saudi Arabia
| | - Zheng-Guo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
- Graduate School of Medicine, Henan Polytechnic University, Jiaozuo, Henan 454000, P.R. China
| | - Dejun Zhou
- Graduate School of Medicine, Henan Polytechnic University, Jiaozuo, Henan 454000, P.R. China
| | - Sheikh Abdul Saeed
- Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah 21423, Saudi Arabia
- King Abdullah International Medical Research Center, Jeddah 21423, Saudi Arabia
| | - Hidekuni Inadera
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
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24
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Antunovic M, Matic I, Nagy B, Caput Mihalic K, Skelin J, Stambuk J, Josipovic P, Dzinic T, Paradzik M, Marijanovic I. FADD-deficient mouse embryonic fibroblasts undergo RIPK1-dependent apoptosis and autophagy after NB-UVB irradiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 194:32-45. [PMID: 30904584 DOI: 10.1016/j.jphotobiol.2019.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/28/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022]
Abstract
Sun or therapy-related ultraviolet B (UVB) irradiation induces different cell death modalities such as apoptosis, necrosis/necroptosis and autophagy. Understanding of mechanisms implicated in regulation and execution of cell death program is imperative for prevention and treatment of skin diseases. An essential component of death-inducing complex is Fas-associated protein with death domain (FADD), involved in conduction of death signals of different death modalities. The purpose of this study was to enlighten the role of FADD in the selection of cell death mode after narrow-band UVB (NB-UVB) irradiation using specific cell death inhibitors (carbobenzoxy-valyl-alanyl-aspartyl-[O-methyl]- fluoromethylketone (zVAD-fmk), Necrostatin-1 and 3-Methyladenine) and FADD-deficient (FADD-/-) mouse embryonic fibroblasts (MEFs) and their wild type (wt) counterparts. The results imply that lack of FADD sensitized MEFs to induction of receptor-interacting protein 1 (RIPK1)-dependent apoptosis by the generation of reactive oxygen species (ROS), but without activation of the proteins p53, Bax and Bcl-2 as well as without the enrolment of calpain-2. Autophagy was established as a contributing factor to NB-UVB-induced death execution. By contrast, wt cells triggered intrinsic apoptotic pathway that was resistant to the inhibition by zVAD-fmk and Necrostatin-1 pointing to the mechanism overcoming the cell survival. These findings support the role of FADD in prevention of autophagy-dependent apoptosis.
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Affiliation(s)
- Maja Antunovic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Igor Matic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Biserka Nagy
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Katarina Caput Mihalic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Josipa Skelin
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Jerko Stambuk
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Pavle Josipovic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Tamara Dzinic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Mladen Paradzik
- Department of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Inga Marijanovic
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia.
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Zhang S, Cao L, Wang ZR, Li Z, Ma J. Anti-cancer effect of toosendanin and its underlying mechanisms. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:270-283. [PMID: 29629572 DOI: 10.1080/10286020.2018.1451516] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 03/08/2018] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
Toosendanin (TSN) is a triterpenoid purified from the medicinal herb Melia toosendan Sieb. et Zucc and has been used as an insecticide for decades. Recent studies have attracted increasing interest of TSN due to its novel anti-cancer effect in diverse cancer models. The broad spectrum anti-cancer activity suggests that TSN inhibits multiple pathways/targets that are critical for cancer cell survival and proliferation. Our recent study indicated that TSN has anti-cancer effect in glioblastoma through induction of estrogen receptor β (ERβ) and p53. This review highlights the anti-cancer efficacy of TSN and provides proof-of-principle insight into the underlying mechanisms.
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Affiliation(s)
- Sha Zhang
- a Department of Basic Medicine , Shaanxi University of Chinese Medicine , Xianyang 712046 , China
| | - Liang Cao
- b Department of Traditional Chinese Medicine, Xijing Hospital , Fourth Military Medical University , Xi'an 710032 , China
| | - Zong-Ren Wang
- b Department of Traditional Chinese Medicine, Xijing Hospital , Fourth Military Medical University , Xi'an 710032 , China
| | - Zhe Li
- c Second Clinical Medical College , Shaanxi University of Chinese Medicine , Xianyang 712046 , China
| | - Jing Ma
- b Department of Traditional Chinese Medicine, Xijing Hospital , Fourth Military Medical University , Xi'an 710032 , China
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26
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Shati AA. Resveratrol improves sperm parameter and testicular apoptosis in cisplatin-treated rats: Effects on ERK1/2, JNK, and Akt pathways. Syst Biol Reprod Med 2018; 65:236-249. [DOI: 10.1080/19396368.2018.1541114] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ali A. Shati
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
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Varlamova EG, Goltyaev MV. The Effect of Sodium Selenite on the Expression of Genes of Endoplasmic Reticulum-Resident Selenoproteins in Human Fibrosarcoma Cells. Biophysics (Nagoya-shi) 2018. [DOI: 10.1134/s000635091805024x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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28
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Şengelen A, Önay-Uçar E. Rosmarinic acid and siRNA combined therapy represses Hsp27 (HSPB1) expression and induces apoptosis in human glioma cells. Cell Stress Chaperones 2018; 23:885-896. [PMID: 29627902 PMCID: PMC6111096 DOI: 10.1007/s12192-018-0896-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 02/10/2018] [Accepted: 03/24/2018] [Indexed: 12/11/2022] Open
Abstract
High expression of Hsp27 in glioma cells has been closely associated with tumor cell proliferation and apoptosis inhibition. The aim of the present study was to asses the effects of rosmarinic acid (RA) on Hsp27 expression and apoptosis in non-transfected and transfected human U-87 MG cells. The effect of rosmarinic acid was compared to quercetin, which is known to be a good Hsp27 inhibitor. In order to block the expression of Hsp27 gene (HSPB1), transfection with specific siRNAs was performed. Western blotting technique was used to assess the Hsp27 expression, and caspase-3 colorimetric activity assay was performed to determine apoptosis induction. According to the results, it was found that RA and quercetin effectively silenced Hsp27 and both agents induced apoptosis by activating the caspase-3 pathway. Eighty and 215 μM RA decreased the level of Hsp27 by 28.8 and 46.7% and induced apoptosis by 30 and 54%, respectively. For the first time, we reported that rosmarinic acid has the ability to trigger caspase-3 induced apoptosis in human glioma cells. As a result of siRNA transfection, the Hsp27 gene was silenced by ~ 50% but did not cause a statistically significant change in caspase-3 activation. It was also observed that apoptosis was induced at a higher level as a result of Hsp27 siRNA and subsequent quercetin or RA treatment. siRNA transfection and 215 μM RA treatment suppressed Hsp27 expression level by 90.5% and increased caspase-3 activity by 58%. Herein, we demonstrated that RA administered with siRNA seems to be a potent combination for glioblastoma therapy.
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Affiliation(s)
- Aslıhan Şengelen
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Vezneciler, 34134, Istanbul, Turkey.
| | - Evren Önay-Uçar
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Vezneciler, 34134, Istanbul, Turkey
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29
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Chung YW, Chung MW, Choi SK, Choi SJ, Choi SJN, Chung SY. Tacrolimus-Induced Apoptosis is Mediated by Endoplasmic Reticulum-derived Calcium-dependent Caspases-3,-12 in Jurkat Cells. Transplant Proc 2018; 50:1172-1177. [PMID: 29731088 DOI: 10.1016/j.transproceed.2018.01.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 01/30/2018] [Indexed: 11/16/2022]
Abstract
Apoptotic signal pathways are delivered to caspase-3, caspase-9, or both in different cells via the death receptor pathway, mitochondrial pathway, or by the endoplasmic reticulum (ER) pathway through initiators of caspase-3, -8, -9, or -12. Tacrolimus (Tac)-induced apoptosis was characterized by nuclear fragmentation and caspase-3 activation. We examined the effect of tacrolimus on ER-derived calcium and caspase-3,-12-mediated apoptosis on Jurkat human T lymphocyte. Tac decreased the viability of Jurkat cells in a dose-dependent manner. Tac also increased continuously intracellular concentration of calcium from 24 hours to 72 hours. We did not find intracellular calcium changes on the treatment of calcium ionorpore (A23187) regardless of 1 nmol/L Tac concentration level. However, calcium adenosine triphosphatase inhibitor (thapsigargin) increased intracellular calcium accumulation and co-treating 1 nmol/L Tac further induced intracellular calcium accumulation. Interestingly, we found that 1 nmol/L Tac treatment induced activation of caspase-12 protease as well as the catalytic activity of caspase-3 but not catalytic activation of caspase-6, -8, and -9 proteases in Jurkat cells. These data advance our understanding of Tac-induced apoptosis is ER-derived calcium and caspases-3,-12- mediated apoptosis in human Jurkat cell line.
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Affiliation(s)
- Y W Chung
- Department of Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - M W Chung
- Department of Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - S K Choi
- Department of Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - S J Choi
- Department of Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - S J N Choi
- Department of Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - S Y Chung
- Department of Surgery, Chonnam National University Medical School, Gwangju, Korea.
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30
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Song J, Zhang Q, Wang S, Yang F, Chen Z, Dong Q, Ji Q, Yuan X, Ren D. Cleavage of caspase-12 at Asp94, mediated by endoplasmic reticulum stress (ERS), contributes to stretch-induced apoptosis of myoblasts. J Cell Physiol 2018; 233:9473-9487. [PMID: 29943814 DOI: 10.1002/jcp.26840] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 05/03/2018] [Indexed: 12/25/2022]
Abstract
Mechanical overloading can lead to skeletal muscle damage instead of remodeling. This is attributed to the excessive apoptosis of myoblasts, mechanism of which remains to be elucidated. The present study aimed to investigate the involvement of endoplasmic reticulum stress (ERS) and caspase-12 in mediating the stretch-induced apoptosis of myoblasts. Myoblast apoptosis was evaluated by Hoechst staining, DNA fragmentation assay, Annexin V binding, and propidium iodide staining, as well as caspase-3 and poly-ADP-ribose polymerase 1 cleavage. First, our results showed that apoptosis was elevated in a time-dependent manner when myoblasts were subjected to cyclic mechanical stretch (CMS) for 12, 24, and 36 hr. Concomitantly, CMS triggered the ERS and caspase-12 cleavage; ERS inhibitor GSK 2606414 suppressed the CMS-induced cleavage of caspase-12 and myoblast apoptosis. Silencing caspase-12 attenuated the apoptosis of myoblasts under CMS. Furthermore, CMS-induced myoblast apoptosis was partially recovered by overexpressing wild-type caspase-12 in caspase-12-silenced myoblasts. In contrast, overexpressing mutant caspase-12 (D94N), which cannot be cleaved into the active caspase-12 fragments, failed to accomplish the same effect. Finally, C2C12 overexpressing truncated caspase-12 segment (TC-casp12-D94), which starts from Asp94 and ends at Asn419, underwent apoptosis under both static and stretched conditions. Interestingly, C2C12 myoblasts seemed to be resistant to stretch-induced apoptosis upon low-serum-induced differentiation. In conclusion, our study provided evidence that caspase-12 cleavage at Asp94, induced by ERS under mechanical stimuli, is the key molecule in initiating the stretch-triggered apoptosis of myoblasts.
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Affiliation(s)
- Jing Song
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Department of Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Qiang Zhang
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Department of Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Shuai Wang
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Department of Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Fang Yang
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Zhenggang Chen
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Quanjiang Dong
- Department of Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Qiuxia Ji
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xiao Yuan
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Dapeng Ren
- Department of Stomatology Medical Center, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Department of Orthodontics, School of Stomatology, Qingdao University, Qingdao, China
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31
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Xu YP, Sui XL, Zhang AS, Ye L, Gu FJ, Chen JH. Monocytes, endoplasmic reticulum stress and metabolomics in dogs with multiple organ dysfunction syndrome treated by continuous venovenous hemodiafiltration. Oncotarget 2018; 8:34992-35008. [PMID: 28380442 PMCID: PMC5471029 DOI: 10.18632/oncotarget.16533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/01/2017] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES We tried to investigate the mechanism of continuous venovenous hemodiafiltration (CVVHDF) treatment in monocytes function, endoplasmic reticulum (ER) stress signaling pathways, metabolomics and histopathological changes of MODS dogs, and aimed to enhance the understanding of pathogenesis and provide novel avenues to potential therapies. METHODS 12 male Beagle dogs were used to develop the stable models of MODS by using hemorrhagic shock plus resuscitation and endotoxemia, and assigned randomly to CVVHDF group (n=6) and MODS group (n=6). The dogs in CVVHDF group were given the typical CVVHDF treatment for 24h after the completion of endotoxin intravenous infusion, while those in MODS group were offered the i.v heparin instead only. Serum sample were collected at five time points, i.e. before anesthesia, 0h, 6h, 12h and 24h after the endotoxin injection (T1~T5, respectively), and meanwhile, the changes of mRNA, protein and human umbilical vein endothelial cells (HUVECs) apoptosis rates in JNK, CHOP and Caspase-12 were observed before and after interfered by RNA interference technology. RESULTS The levels of DLA-DR, IL-1β and IL-4 were higher than those in MODS group after the CVVHDF treatment, and the early and late apoptosis rates showed downward trend compared with MODS group. In vitro and prior to RNA interference (RNAi), the levels of mRNA and protein expression and HUVECs apoptosis rates of JNK, CHOP and Caspase-12 in CVVHDF group were significantly lower compared to T1 and MODS group respectively. However, the levels of mRNA and protein expression and HUVECs apoptosis rates were significantly lower than those before interfered by RNAi in both two groups. The serum levels of LPCs, ornithine, proline, methionine, etc. were down-regulated while carnitines, FFAs, PC, etc. were increased significantly in MODS (T4), and the serum levels of methionine, proline, arginine and lysine were increased while carnitine, LPCs, PCs, SMs and orthophosporic acid were decreased after 12 hours CVVHDF treatment (T4). CONCLUSION CVVHDF treatment could reduce the apoptosis of the cells by enhancing the antigen presentation, improving the anti-inflammatory and proinflammatory imbalance and even correcting the metabolic disorder of amino acids and phospholipids.
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Affiliation(s)
- Yun-Peng Xu
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
| | - Xiao-Lu Sui
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
| | - Ai-Sha Zhang
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
| | - Lei Ye
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
| | - Feng-Juan Gu
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
| | - Ji-Hong Chen
- Department of Nephropathy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region of China, China
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Jia X, Chen Y, Zhao X, Lv C, Yan J. Oncolytic vaccinia virus inhibits human hepatocellular carcinoma MHCC97-H cell proliferation via endoplasmic reticulum stress, autophagy and Wnt pathways. J Gene Med 2018; 18:211-9. [PMID: 27441866 DOI: 10.1002/jgm.2893] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/16/2016] [Accepted: 07/16/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a highly lethal malignancy. Vaccinia virus (VV) possessed many inherent advantages with respect to being engineered as a vector for cancer gene therapy, although the mechanism of action remains to be explored further. METHODS We constructed a thymidine kinase gene insertional inactivated VV, named VV-Onco, and then tested its effects on cell viability, apoptosis and colony formation ability in a highly metastatic human hepatocellular carcinoma cell line MHCC97-H, and also investigated the potential cell signal pathways involved in this action. RESULTS VV-Onco induced strong cytotoxicity and apoptosis and also inhibited the colony formation of MHCC97-H cells. The tumor cell apoptosis induced by VV-Onco is likely mediated via endoplasmic reticulum stress, autophagy and Wnt signaling pathways. The downregulation of survivin and c-Myc may also play a role in VV-Onco induced cell death. CONCLUSIONS The results of the present study provide new insights into the mechanisms of VV-induced tumor cell death. The engineered recombinant VV containing optimized therapeutic transgenes may represent a new avenue for cancer gene therapy. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xiaoyuan Jia
- Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou, China
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Yongyi Chen
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Xin Zhao
- Tianjin International Travel Health Care Center, Entry-Exit Inspection and Quarantine Bureau, Tianjin, China
| | - Chunwei Lv
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Jie Yan
- Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou, China.
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Liu T, Duan W, Nizigiyimana P, Gao L, Liao Z, Xu B, Liu L, Lei M. Alpha-mangostin attenuates diabetic nephropathy in association with suppression of acid sphingomyelianse and endoplasmic reticulum stress. Biochem Biophys Res Commun 2018; 496:394-400. [PMID: 29317203 DOI: 10.1016/j.bbrc.2018.01.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/05/2018] [Indexed: 01/28/2023]
Abstract
AIMS Diabetic nephropathy is a common complication of diabetes, but there are currently few treatment options. The aim of this study was to gain insight into the effect of alpha-mangostin on diabetic nephropathy and possible related mechanisms. METHODS Goto-Kakizaki rats were used as a diabetic model and received alpha-mangostin or desipramine treatment with normal saline as a control. Ten age-matched Sprague Dawley rats were used as normal controls and treated with normal saline. At week 12, blood glucose, albuminuria, apoptosis and renal pathologic changes were assessed. Protein levels for acid sphingomyelinase, glucose-regulated protein 78, phosphorylated PKR-like ER-resident kinase, activated transcription factor 4, CCAAT/enhancer-binding protein, homologous protein), and cleaved-caspase12 were measured. RESULTS The level of acid sphingomyelinase was significantly increased, and ER stress was activated in diabetic rat kidneys when compared to the control animals. When acid sphingomyelinase was inhibited by alpha-mangostin, the expression of ER stress-related proteins was down-regulated in association with decreased levels of diabetic kidney injury. CONCLUSIONS Alpha-mangostin, an acid sphingomyelinase inhibitor plays a protective role in diabetic neuropathy by relieving ER stress induced-renal cell apoptosis.
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Affiliation(s)
- Tingting Liu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Department of Endocrinology, Haikou People's Hospital, Haikou, Hainan, 570208, China
| | - Wang Duan
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Paul Nizigiyimana
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Lin Gao
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zhouning Liao
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Boya Xu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Lerong Liu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Minxiang Lei
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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Zong S, Liu T, Wan F, Chen P, Luo P, Xiao H. Endoplasmic Reticulum Stress Is Involved in Cochlear Cell Apoptosis in a Cisplatin-Induced Ototoxicity Rat Model. Audiol Neurootol 2017; 22:160-168. [PMID: 29049998 DOI: 10.1159/000480346] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/11/2017] [Indexed: 12/14/2022] Open
Abstract
Endoplasmic reticulum (ER) stress arises when excessive improperly folded proteins accumulate in the ER lumen. When ER stress occurs, the unfolded protein response (UPR) is subsequently activated to restore ER proteostasis. However, severe ER stress leads to apoptosis. Recent studies have suggested that cisplatin cytotoxicity may be related to ER stress. The purpose of this study was to determine whether ER stress participates in cochlear cell apoptosis in a cisplatin-induced ototoxicity rat model and to also determine the possible relationship between ER stress and hearing loss. Our results revealed that treatment with cisplatin upregulated the expression of active caspase-12 in cochlear cells, which is indicative of cisplatin-induced activation of ER-specific apoptosis. Increased expression of C/EBP homologous protein (CHOP) and cleaved caspase-9 suggested a close relationship between severe ER stress and mitochondria-dependent apoptosis in the cochlear cells of cisplatin-treated rats. In addition, we found that tauroursodeoxycholic acid (TUDCA), a promoter of ER proteostasis, had a protective effect on cisplatin-induced hearing loss. These results demonstrate that ER stress is involved in the cisplatin-induced apoptosis of cochlear cells in vivo.
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Affiliation(s)
- Shimin Zong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Wang FZ, Dai XL, Liu HY. Molecular mechanisms underlying the α-tomatine-directed apoptosis in human malignant glioblastoma cell lines A172 and U-118 MG. Exp Ther Med 2017; 14:6183-6192. [PMID: 29250143 DOI: 10.3892/etm.2017.5294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 03/06/2017] [Indexed: 12/25/2022] Open
Abstract
In the present study, the molecular mechanisms involved in the α-tomatine-induced apoptosis in human glioblastoma cell lines A172 and U-118 MG were investigated. Wright staining and ApopTag assays were conducted to confirm the apoptosis induced by α-tomatine treatment. Fura-2 assay determined an enhancement in free Ca2+ intracellularly, indicating the occurrence of Ca2+-dependent apoptosis induction. Western blot experiments were also performed to predict the apoptosis by measuring the changes in the Bax:Bcl-2 ratio. Increase of calpain activity triggered caspase-12 expression, which in turn further activated caspase-9. In addition, an increase in the ratio of Bax:Bcl-2 accounted for the mitochondrial release of cytochrome c into the cytosol for caspase-3 and caspase-9 activation. Elevated activity of calpain and caspase-3 yielded spectrin breakdown products with 145 and 120 kDa, respectively. Caspase-3 activation further cleaved the inhibitor of caspase activated DNase, while the apoptosis-inducing factor detected in the cytosol suggested that apoptosis was independent of caspase. The apoptosis induction was further supported by decreased expression levels of nuclear factor-κB and increased expression of the inhibitor of nuclear factor, IκBα. In conclusion, the presented experimental results revealed the stimulation of different molecular mechanisms for α-tomatine-mediated apoptosis in A172 and U-118 MG human glioblastoma cell lines.
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Affiliation(s)
- Fa-Zhao Wang
- Department of Neurosurgery, The People's Hospital of Zoucheng, Zoucheng, Shandong 273500, P.R. China
| | - Xue-Liang Dai
- Department of Neurosurgery, The People's Hospital of Zoucheng, Zoucheng, Shandong 273500, P.R. China
| | - Hong-Yi Liu
- Department of Neurosurgery, The People's Hospital of Zoucheng, Zoucheng, Shandong 273500, P.R. China
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JNK inhibitor alleviates apoptosis of fetal neural stem cells induced by emulsified isoflurane. Oncotarget 2017; 8:94009-94019. [PMID: 29212205 PMCID: PMC5706851 DOI: 10.18632/oncotarget.21505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 09/13/2017] [Indexed: 11/25/2022] Open
Abstract
Isoflurane can provide both neuroprotection and neurotoxicity in various culture models and in rodent developing brains. Emulsified Isoflurane (EI) is an emulsion formulation of isoflurane, while its underlying molecular mechanism of developemental nerve toxicity largely remains unclear. We hypothesized that EI induced fetal neural stem cells (FNSCs) apoptosis, endoplasmic reticulum (ER) stress and c-Jun N-terminal kinase (JNK) activation. FNSCs were isolated from the cortex of SD rats during 14 days of gestation. The cell viability, cell apoptotic rates and the expression of apoptosis-related protein Caspase3, inositol requiring enzyme 1 (IRE1), poly (adenosine diphosphate-ribose) polymerase (PARP), Bax, Bcl-2, JNK, p-JNK and XBP1 were determined. Specific inhibition was performed by siRNA-targeting of JNK in FNSCs. EI could increase the p-JNK, JNK and caspase3 protein expression, the JNK pathway was activated by EI, and EI-induced apoptosis was blocked by inhibiting JNK pathway with SP600125 or JNK-small interfering RNA (siRNA), EI enhanced the level of IRE1, PARP, Bax/Bcl-2 and XBP1, which led FNSCs to apoptosis and ER stress. Meanwhile, dilatation of the ER lumens in FNSCs treated by EI for 24 h was significant. Green fluorescent protein (GFP) positive cell ratios were significantly decreased by FNSCs transfecting with JNK gene silencing. JNK was efficiently silenced in siRNA-JNK1 group. The results provided in-vitro evidence which supports that the underlying mechanisms of EI-induced apoptosis are the induction of ER stress and sequent JNK activation. Together, these data suggest that JNK inhibiting might be applied for improving therapeutic outcomes in anesthestics-induced neurotoxicity. Highlights: 1. Prolonged treatment with high-dose EI decreased the survival level of FNSCs by inducing apoptosis and inhibiting proliferation via the JNK signaling pathway. 2. EI induced ER stress and sequent JNK activation. 3. JNK inhibiting might be applied for improving therapeutic outcomes in anesthestics-induced neurotoxicity
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Proteome Stability as a Key Factor of Genome Integrity. Int J Mol Sci 2017; 18:ijms18102036. [PMID: 28937603 PMCID: PMC5666718 DOI: 10.3390/ijms18102036] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/11/2017] [Accepted: 09/19/2017] [Indexed: 12/11/2022] Open
Abstract
DNA damage is constantly produced by both endogenous and exogenous factors; DNA lesions then trigger the so-called DNA damaged response (DDR). This is a highly synchronized pathway that involves recognition, signaling and repair of the damage. Failure to eliminate DNA lesions is associated with genome instability, a driving force in tumorigenesis. Proteins carry out the vast majority of cellular functions and thus proteome quality control (PQC) is critical for the maintenance of cellular functionality. PQC is assured by the proteostasis network (PN), which under conditions of proteome instability address the triage decision of protein fold, hold, or degrade. Key components of the PN are the protein synthesis modules, the molecular chaperones and the two main degradation machineries, namely the autophagy-lysosome and the ubiquitin-proteasome pathways; also, part of the PN are a number of stress-responsive cellular sensors including (among others) heat shock factor 1 (Hsf1) and the nuclear factor erythroid 2-related factor 2 (Nrf2). Nevertheless, the lifestyle- and/or ageing-associated gradual accumulation of stressors results in increasingly damaged and unstable proteome due to accumulation of misfolded proteins and/or protein aggregates. This outcome may then increase genomic instability due to reduced fidelity in processes like DNA replication or repair leading to various age-related diseases including cancer. Herein, we review the role of proteostatic machineries in nuclear genome integrity and stability, as well as on DDR responses.
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Abstract
Infected cells can undergo apoptosis as a protective response to viral infection, thereby limiting viral infection. As viruses require a viable cell for replication, the death of the cell limits cellular functions that are required for virus replication and propagation. Picornaviruses are single-stranded RNA viruses that modify the host cell apoptotic response, probably in order to promote viral replication, largely as a function of the viral proteases 2A, 3C, and 3CD. These proteases are essential for viral polyprotein processing and also cleave cellular proteins. Picornavirus proteases cleave proapoptotic adaptor proteins, resulting in downregulation of apoptosis. Picornavirus proteases also cleave nucleoporins, disrupting the orchestrated manner in which signaling pathways use active nucleocytoplasmic trafficking, including those involved in apoptosis. In addition to viral proteases, the transmembrane 2B protein alters intracellular ion signaling, which may also modulate apoptosis. Overall, picornaviruses, via the action of virally encoded proteins, exercise intricate control over and subvert cell death pathways, specifically apoptosis, thereby allowing viral replication to continue.
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Kaul Z, Chakrabarti O. Tumor susceptibility gene 101 regulates predisposition to apoptosis via ESCRT machinery accessory proteins. Mol Biol Cell 2017; 28:2106-2122. [PMID: 28539405 PMCID: PMC5509423 DOI: 10.1091/mbc.e16-12-0855] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 05/11/2017] [Accepted: 05/16/2017] [Indexed: 12/21/2022] Open
Abstract
ESCRT proteins are implicated in myriad cellular processes, including endosome formation, fusion of autophagosomes/amphisomes with lysosomes, and apoptosis. The role played by these proteins in either facilitating or protecting against apoptosis is unclear. In this study, while trying to understand how deficiency of Mahogunin RING finger 1 (MGRN1) affects cell viability, we uncovered a novel role for its interactor, the ESCRT-I protein TSG101: it directly participates in mitigating ER stress-mediated apoptosis. The association of TSG101 with ALIX prevents predisposition to apoptosis, whereas ALIX-ALG-2 interaction favors a death phenotype. Altered Ca2+ homeostasis in cells and a simultaneous increase in the protein levels of ALIX and ALG-2 are required to elicit apoptosis by activating ER stress-associated caspase 4/12. We further demonstrate that in the presence of membrane-associated, disease-causing prion protein CtmPrP, increased ALIX and ALG-2 levels are detected along with ER stress markers and associated caspases in transgenic brain lysates and cells. These effects were rescued by overexpression of TSG101. This is significant because MGRN1 deficiency is closely associated with neurodegeneration and prenatal and neonatal mortality, which could be due to excess cell death in selected brain regions or myocardial apoptosis during embryonic development.
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Affiliation(s)
- Zenia Kaul
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - Oishee Chakrabarti
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
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40
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Xiong K, Long L, Zhang X, Qu H, Deng H, Ding Y, Cai J, Wang S, Wang M, Liao L, Huang J, Yi CX, Yan J. Overview of long non-coding RNA and mRNA expression in response to methamphetamine treatment in vitro. Toxicol In Vitro 2017; 44:1-10. [PMID: 28619521 DOI: 10.1016/j.tiv.2017.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/20/2017] [Accepted: 06/10/2017] [Indexed: 01/11/2023]
Abstract
Long non-coding RNAs (lncRNAs) display multiple functions including regulation of neuronal injury. However, their impact in methamphetamine (METH)-induced neurotoxicity has rarely been reported. Here, using microarray analysis, we investigated the expression profiling of lncRNAs and mRNAs in primary cultured prefrontal cortical neurons after METH treatment. We observed a difference in lncRNA and mRNA expression between the experimental and sham control groups. Using bioinformatics, we analyzed the highest enriched gene ontology (GO) terms of biological process, cellular component, and molecular function, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and pathway network analysis. Furthermore, an lncRNA-mRNA co-expression sub-network for aberrantly expressed terms revealed possible interactions of lncRNA NR_110713 and NR_027943 with their related genes. Afterwards, three lncRNAs (NR_110713, NR_027943, GAS5) and two mRNAs (Ddit3, Casp12) were targeted to validate the microarray data by qRT-PCR. This presented an overview of lncRNA and mRNA expression profiling and indicated that lncRNA might participate in METH-induced neuronal apoptosis by regulating the coding genes of neurons.
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Affiliation(s)
- Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Lingling Long
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Xudong Zhang
- Narcotics Division, Municipal Security Bureau, Changsha, Hunan 410013, China
| | - Hongke Qu
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Haixiao Deng
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Yanjun Ding
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Jifeng Cai
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Shuchao Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Mi Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Lvshuang Liao
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Jufang Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Chun-Xia Yi
- Department of Endocrinology and Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, 1105 AZ, The Netherlands
| | - Jie Yan
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China.
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Xue Q, Li C, Chen J, Guo H, Li D, Wu X. The Protective effect of the endoplasmic reticulum stress-related factors BiP/GRP78 and CHOP/Gadd153 on noise-induced hearing loss in guinea pigs. Noise Health 2017; 18:247-255. [PMID: 27762253 PMCID: PMC5187652 DOI: 10.4103/1463-1741.192481] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Context: The audiological features and cochlear morphology of individuals with noise-induced hearing loss (NIHL) are well characterized. However, the molecular processes in the cochlea are not well understood. Aims: To explore the role of the endoplasmic reticulum stress (ERS) response in the guinea pig model of cochlear damage induced by exposure to intense noise. Settings and Design: A pilot case–control study. Subjects and Methods: Forty-eight guinea pigs were divided into four equal groups. At 1, 4, or 14 days (d) post-exposure, the auditory brainstem responses (ABRs) were tested before sacrificing the subjects. The expression levels of the binding immunoglobulin protein/glucose-regulated protein 78 (BiP/GRP78) and C/EBP-homologous protein/growth arrest and DNA damage-inducible gene 153 (CHOP/Gadd153) proteins were evaluated using immunohistochemistry and Western blotting. The number of cochlear hair cells with altered nuclei was counted using confocal fluorescence microscopy. Statistical analysis used: One-way analysis of variance (ANOVA) and the least squares difference (LSD) test. Results: The outer hair cells (OHCs) showed changes of apoptosis, necrosis, and loss after noise exposure. In the 1- and 4-d groups, more apoptotic cells were found than necrotic cells (P < 0.01). The level of BiP/GRP78 was significantly higher in all three experimental groups compared to the control group (P < 0.01). The level of CHOP/Gadd153 was increased at 1 d post-exposure, achieving a peak that was maintained until 4 d, after which it returned to baseline levels by 14 d post-exposure. Conclusions: ERS response was activated by inducing the expression of BiP/GRP78 to lessen the extent of the resulting cellular damage and activating the CHOP/Gadd153 pathway to eliminate the most severely damaged cells.
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Affiliation(s)
- Qiuhong Xue
- Department of Otorhinolaryngology, Tianyou Hospital Affiliated with Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Caihong Li
- Department of Otorhinolaryngology, Head and Neck Surgery of Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Jia Chen
- Department of Otorhinolaryngology, Tianyou Hospital Affiliated with Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Hongmei Guo
- Department of Otorhinolaryngology, Tianyou Hospital Affiliated with Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Dongqing Li
- Department of Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xianglei Wu
- Department of Otorhinolaryngology, Head and Neck Surgery of Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China; Laboratory of Immunology, Faculty of Medicine, University of Lorraine, Vandoeuvre-Les-Nancy, Nancy, France
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42
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Pinkaew D, Chattopadhyay A, King MD, Chunhacha P, Liu Z, Stevenson HL, Chen Y, Sinthujaroen P, McDougal OM, Fujise K. Fortilin binds IRE1α and prevents ER stress from signaling apoptotic cell death. Nat Commun 2017; 8:18. [PMID: 28550308 PMCID: PMC5446404 DOI: 10.1038/s41467-017-00029-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 04/05/2017] [Indexed: 12/19/2022] Open
Abstract
The endoplasmic reticulum, the cytoplasmic organelle that matures a massive amount of nascent secretory polypeptides, is particularly sensitive to stress. Endoplasmic reticulum stress causes unfolded proteins to populate the organelle, eliciting the unfolded protein response. During the unfolded protein response, GRP78—an endoplasmic reticulum master stress regulator—detaches from three endoplasmic reticulum stress sensors (IRE1α, PERK, and ATF6) and allows them to activate the apoptotic signaling pathway. Fortilin, a pro-survival molecule, is known to inhibit apoptosis by binding and inhibiting p53, but its role in endoplasmic reticulum stress-induced apoptosis remains unknown. Here, we report that fortilin directly interacts with the cytoplasmic domain of IRE1α, inhibits both kinase and endoribonuclease (RNase) activities of the stress sensor, and protects cells against apoptotic cell death at both cellular and whole animal levels. Our data support a role of fortilin in the unfolded protein response and its potential participation in human diseases caused by unfolded protein response. IRE1α is an ER stress sensor, whose activity induces apoptosis. Here, the authors report that fortilin, a pro-survival factor, with yet unknown roles in ER stress, interacts with active IRE1α, inhibits both its kinase end RNase activities, and protects cells from apoptosis both in vitro and in vivo.
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Affiliation(s)
- Decha Pinkaew
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Abhijnan Chattopadhyay
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA.,Department of Biochemistry and Molecular Biology, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Matthew D King
- Department of Chemistry and Biochemistry, Boise State University, Boise, Idaho, 83725, USA
| | - Preedakorn Chunhacha
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Zhihe Liu
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Heather L Stevenson
- Department of Pathology, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA.,The Institute of Translational Sciences, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Yanjie Chen
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Patuma Sinthujaroen
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA
| | - Owen M McDougal
- Department of Chemistry and Biochemistry, Boise State University, Boise, Idaho, 83725, USA
| | - Ken Fujise
- Division of Cardiology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA. .,Department of Biochemistry and Molecular Biology, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA. .,The Institute of Translational Sciences, University of Texas Medical Branch at Galveston, Galveston, Texas, 77555, USA.
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Mahalingam D, Wilding G, Denmeade S, Sarantopoulas J, Cosgrove D, Cetnar J, Azad N, Bruce J, Kurman M, Allgood VE, Carducci M. Mipsagargin, a novel thapsigargin-based PSMA-activated prodrug: results of a first-in-man phase I clinical trial in patients with refractory, advanced or metastatic solid tumours. Br J Cancer 2017; 114:986-94. [PMID: 27115568 PMCID: PMC4984914 DOI: 10.1038/bjc.2016.72] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 02/03/2016] [Accepted: 02/16/2016] [Indexed: 12/26/2022] Open
Abstract
Background: Mipsagargin (G-202; (8-O-(12-aminododecanoyl)-8-O-debutanoyl thapsigargin)-Asp-γ-Glu-γ-Glu-γ-GluGluOH)) is a novel thapsigargin-based targeted prodrug that is activated by PSMA-mediated cleavage of an inert masking peptide. The active moiety is an inhibitor of the sarcoplasmic/endoplasmic reticulum calcium adenosine triphosphatase (SERCA) pump protein that is necessary for cellular viability. We evaluated the safety of mipsagargin in patients with advanced solid tumours and established a recommended phase II dosing (RP2D) regimen. Methods: Patients with advanced solid tumours received mipsagargin by intravenous infusion on days 1, 2 and 3 of 28-day cycles and were allowed to continue participation in the absence of disease progression or unacceptable toxicity. The dosing began at 1.2 mg m−2 and was escalated using a modified Fibonacci schema to determine maximally tolerated dose (MTD) with an expansion cohort at the RP2D. Plasma was analysed for mipsagargin pharmacokinetics and response was assessed using RECIST criteria. Results: A total of 44 patients were treated at doses ranging from 1.2 to 88 mg m−2, including 28 patients in the dose escalation phase and 16 patients in an expansion cohort. One dose-limiting toxicity (DLT; Grade 3 rash) was observed in the dose escalation portion of the study. At 88 mg m−2, observations of Grade 2 infusion-related reaction (IRR, 2 patients) and Grade 2 creatinine elevation (1 patient) led to declaration of 66.8 mg m−2 as the recommended phase II dose (RP2D). Across the study, the most common treatment-related adverse events (AEs) were fatigue, rash, nausea, pyrexia and IRR. Two patients developed treatment-related Grade 3 acute renal failure that was reversible during the treatment-free portion of the cycle. To help ameliorate the IRR and creatinine elevations, a RP2D of 40 mg m−2 on day 1 and 66.8 mg m−2 on days 2 and 3 with prophylactic premedications and hydration on each day of infusion was established. Clinical response was not observed, but prolonged disease stabilisation was observed in a subset of patients. Conclusions: Mipsagargin demonstrated an acceptable tolerability and favourable pharmacokinetic profile in patients with solid tumours.
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Affiliation(s)
- D Mahalingam
- University of Texas Health Science Center San Antonio, Cancer Therapy and Research Center, 7979 Wurzbach Road, U639, Mail Code 8232, San Antonio, TX 78229, USA
| | - G Wilding
- University of Wisconsin Comprehensive Cancer Center, Madison, WI, USA
| | - S Denmeade
- Johns Hopkins University, Baltimore, MD, USA
| | - J Sarantopoulas
- University of Texas Health Science Center San Antonio, Cancer Therapy and Research Center, 7979 Wurzbach Road, U639, Mail Code 8232, San Antonio, TX 78229, USA
| | - D Cosgrove
- Johns Hopkins University School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Bunting/Blaustein Building, 1650 Orleans Street, Baltimore, MD 21231-1000, USA
| | - J Cetnar
- University of Wisconsin Comprehensive Cancer Center, Madison, WI, USA
| | - N Azad
- Johns Hopkins University School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Bunting/Blaustein Building, 1650 Orleans Street, Baltimore, MD 21231-1000, USA
| | - J Bruce
- Department of Oncology, University of Wisconsin Carbone Cancer Center, 7057 Wisconsin Institutes for Medical Research, 1111 Highland Avenue, Madison, WI 53705, USA
| | - M Kurman
- Genspera Inc., Medical Monitor, 2511 North Loop 1604 W, Suite 204, San Antonio, TX 78258, USA
| | - V E Allgood
- Genspera Inc., Medical Monitor, 2511 North Loop 1604 W, Suite 204, San Antonio, TX 78258, USA
| | - M Carducci
- Johns Hopkins University School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Bunting/Blaustein Building, 1650 Orleans Street, Baltimore, MD 21231-1000, USA
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Wang C, Qi S, Liu C, Yang A, Fu W, Quan C, Duan P, Yu T, Yang K. Mitochondrial Dysfunction and Ca 2+ Overload in Injured Sertoli Cells Exposed to Bisphenol A. ENVIRONMENTAL TOXICOLOGY 2017; 32:823-831. [PMID: 27189055 DOI: 10.1002/tox.22282] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 04/08/2016] [Accepted: 04/17/2016] [Indexed: 06/05/2023]
Abstract
Bisphenol-A (BPA) is well known as one of endocrine-disrupting chemicals and testicular toxicant. In this present study, we determined whether BPA caused cell injury through mitochondria impairment and ROS overproduction. The cellular ROS production, mitochondrial ATP synthetase activity and Ca2+ concentration were examined. We have found BPA caused the cellular mitochondria dysfunction and followed by cell death in Sertoli cells. Moreover cytoplasm Ca2+ overload was also involved. Furthermore, pretreatment with N-acetyl-L-cysteine (NAC) could alleviate the damage by causing a remarkable decrease in ROS production and mitochondrial dysfunction. Collectively, our results showed that BPA exposure induced Sertoli cell apoptosis because of excessive ROS generation and mitochondrial dysfunction. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 823-831, 2017.
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Affiliation(s)
- Chengmin Wang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
- Department of Environmental Health, School of Public Health, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Suqin Qi
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
- Wuhan Hospital for the Prevention and Treatment of Occupational Disease, Wuhan, 430015, People's Republic of China
| | - Changjiang Liu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Aixia Yang
- Center of Experimental Medicine, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Wenjuan Fu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Chao Quan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Peng Duan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Tingting Yu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Kedi Yang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
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45
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Crowley SM, Vallance BA, Knodler LA. Noncanonical inflammasomes: Antimicrobial defense that does not play by the rules. Cell Microbiol 2017; 19. [PMID: 28117938 DOI: 10.1111/cmi.12730] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/19/2017] [Accepted: 01/23/2017] [Indexed: 12/18/2022]
Abstract
Although much research has focused on defining the actions of caspase-1 containing canonical inflammasomes in promoting host defense, noncanonical inflammasomes have received comparatively little attention. Exciting new concepts have recently emerged detailing their atypical mechanism of activation, importance in defending against cytosolic Gram-negative pathogens, and role in innate immune defenses of nonmyeloid cells, which has revamped interest in the study of noncanonical inflammmasomes. Here, we will discuss these latest findings about caspase-4, -5, and -11 containing inflammasomes in the context of their role in pathogen elimination in mice and humans.
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Affiliation(s)
- Shauna M Crowley
- Division of Gastroenterology, Department of Pediatrics, Child and Family Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Bruce A Vallance
- Division of Gastroenterology, Department of Pediatrics, Child and Family Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Leigh A Knodler
- Paul G. Allen School for Global Animal Health, College of Veterinary Medicine, Washington State University, Pullman, WA, USA
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Shigemi Z, Manabe K, Hara N, Baba Y, Hosokawa K, Kagawa H, Watanabe T, Fujimuro M. Methylseleninic acid and sodium selenite induce severe ER stress and subsequent apoptosis through UPR activation in PEL cells. Chem Biol Interact 2017; 266:28-37. [PMID: 28161410 DOI: 10.1016/j.cbi.2017.01.027] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/26/2016] [Accepted: 01/30/2017] [Indexed: 11/15/2022]
Abstract
Selenium compounds such as methylseleninic acid (MSA) and sodium selenite (SS) have been widely evaluated as potential anti-cancer agents in the clinical setting. Primary effusion lymphoma (PEL) is a non-Hodgkin's B-cell lymphoma, associated with immunosuppressed individuals, such as post-transplant or AIDS patients. Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of PEL and Kaposi's sarcoma. Here, we found that MSA and SS markedly inhibited the growth of PEL cells compared with KSHV-uninfected B cells. MSA and SS caused ER stress, inducing the unfolded protein response (UPR) pathway in PEL cells that resulted in pro-apoptotic UPR, and finally apoptosis. The expression of UPR-related molecules (GRP78 and GADD34) and pro-apoptotic UPR molecules (CHOP, Bim, or Puma) were augmented in PEL cells treated with MSA or SS. In addition, these compounds induced the activation of caspase-4, an ER stress specific caspase, as well as caspase-3,-7, and -9 in PEL cells. We confirmed that thapsigargin which is an inducer of ER stress, dramatically decreased the viability of PEL cells, compared with KSHV-uninfected Ramos cells. We also investigated whether MSA or SS caused oxidization of cellular proteins in PEL cells. MSA and SS increased the levels of oxidative proteins in PEL cells, and the anti-oxidant agent (N-acetyl-l-cysteine) restored cell viability and suppressed caspase-7 activation in PEL cells treated with MSA or SS. Finally, we confirmed that MSA and SS induced neither lytic replication nor viral production in PEL cells. Taken together, MSA and SS could serve as lead compounds for the development of novel and effective drugs against PEL without the risk of de novo KSHV production.
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Affiliation(s)
- Zenpei Shigemi
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Kazuki Manabe
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Naoko Hara
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Yusuke Baba
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Kohei Hosokawa
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Hiroki Kagawa
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Tadashi Watanabe
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan
| | - Masahiro Fujimuro
- Department of Cell Biology, Kyoto Pharmaceutical University, Misasagi-Shichonocho 1, Yamashinaku, Kyoto 607-8412, Japan.
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Rubin K, Glazer S. The pertussis hypothesis: Bordetella pertussis colonization in the pathogenesis of Alzheimer’s disease. Immunobiology 2017; 222:228-240. [DOI: 10.1016/j.imbio.2016.09.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 09/26/2016] [Indexed: 12/31/2022]
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Zhang Z, Cheng X, Gui T, Tao J, Huang M, Zhu L, Luo M, Cao P, Wan G. Wenshen Xiaozheng Tang induces apoptosis and inhibits migration of ectopic endometriotic stromal cells. JOURNAL OF ETHNOPHARMACOLOGY 2016; 194:386-394. [PMID: 27401290 DOI: 10.1016/j.jep.2016.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 05/31/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wenshen Xiaozheng Tang (WXT), a traditional Chinese medicine prescription, exerted a good therapeutic effect on endometriosis. However, the underlying mechanism is unclear. In the present study, we sought to evaluate the effect of WXT on the proliferation and migration of ectopic endometriotic stromal cells and explore the potential molecular mechanism. MATERIALS AND METHODS Primary stromal cells derived from ectopic endometriotic lesions of patients with endometriosis were isolated and cultured. The inhibition effect of WXT on cell proliferation was determined by MTT. Apoptosis of ectopic endometriotic cells treated with WXT was analyzed with Annexin V-FITC/7-AAD staining. The activation of caspases was detected by western blot analysis. The influence of WXT on migration of ectopic endometriotic cells was measured by scratch wound healing assay and Transwell assay. The DNA binding activity of NF-κB and the expression of nuclear p65 protein were determined by electrophoretic mobility shift assay and western blot analysis, respectively. The impact of WXT on the expression of NF-κB regulated gene products involved in apoptosis and migration was determined by western blot analysis. RESULTS WXT inhibited the proliferation of ectopic endometriotic cells in a time- and dose-dependent manner. In addition, WXT treatment resulted in significant induction of apoptosis through the activation of caspases and inhibition of migration in ectopic endometriotic cells. WXT notably suppressed constitutive NF-κB-DNA-binding activity as well as TNF-α induced nuclear translocation of NF-κB p65 subunit in ectopic endometriotic cells. Moreover, WXT diminished the expression of NF-κB regulated gene products involved in apoptosis and migration, including c-IAP1, c-IAP2, XIAP, survivin, Mcl-1, COX-2 and MMP-9. CONCLUSIONS Our results indicate that WXT induces apoptosis and inhibits migration of ectopic endometriotic stromal cells.
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Affiliation(s)
- Zhenzhen Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Xiaolan Cheng
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Tao Gui
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Jia Tao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Meihua Huang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Li Zhu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Mei Luo
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Peng Cao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
| | - Guiping Wan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, PR China.
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Zhang Q, Liu J, Chen S, Liu J, Liu L, Liu G, Wang F, Jiang W, Zhang C, Wang S, Yuan X. Caspase-12 is involved in stretch-induced apoptosis mediated endoplasmic reticulum stress. Apoptosis 2016; 21:432-42. [PMID: 26801321 DOI: 10.1007/s10495-016-1217-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
It is well recognized that mandibular growth, which is caused by a variety of functional appliances, is considered to be the result of both neuromuscular and skeletal adaptations. Accumulating evidence has demonstrated that apoptosis plays an important role in the adaptation of skeletal muscle function. However, the underlying mechanism of apoptosis that is induced by stretch continues to be incompletely understood. Endoplasmic reticulum stress (ERS), a newly defined signaling pathway, initiates apoptosis. This study seeks to determine if caspase-12 is involved in stretch-induced apoptosis mediated endoplasmic reticulum stress in myoblast and its underlying mechanism. Apoptosis was assessed by Hochest staining, DAPI staining and annexin V binding and PI staining. ER chaperones, such as GRP78, CHOP and caspase-12, were determined by reverse transcription polymerase chain reaction (RT-PCR) and Western blot. Furthermore, caspase-12 inhibitor was used to value the mechanism of the caspase-12 pathway. Apoptosis of myoblast, which is subjected to cyclic stretch, was observed in a time-dependent manner. We found that GRP78 mRNA and protein were significantly increased and CHOP and caspase-12 were activated in myoblast that was exposed to cyclic stretch. Caspase-12 inhibition reduced stretch-induced apoptosis, and caspase-12 activated caspase-3 to induce apoptosis. We concluded that caspase-12 played an important role in stretch-induced apoptosis that is associated by endoplasmic reticulum stress by activating caspase-3.
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Affiliation(s)
- Qiang Zhang
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Jianing Liu
- Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Shulan Chen
- Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Jing Liu
- Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Lijuan Liu
- People's of Weifang Hospital, Weifang, 261041, Shandong, People's Republic of China
| | - Guirong Liu
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Fang Wang
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Wenxin Jiang
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Caixia Zhang
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China
| | - Shuangyu Wang
- Department of Stomatology, People's Hospital in Qingdao Shibei District, Qingdao, 266011, Shandong, People's Republic of China
| | - Xiao Yuan
- Department of Orthodontics, Qingdao Municipal Hospital, Qingdao, 266011, Shandong, People's Republic of China.
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Ramnarayanan S, Kyathanahalli C, Ingles J, Park-York M, Jeyasuria P, Condon JC. The Unfolded Protein Response Regulates Uterine Myocyte Antioxidant Responsiveness During Pregnancy. Biol Reprod 2016; 95:120. [PMID: 27733380 PMCID: PMC5315424 DOI: 10.1095/biolreprod.116.141804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/14/2016] [Accepted: 09/29/2016] [Indexed: 12/31/2022] Open
Abstract
There is considerable evidence that implicates oxidative stress in the pathophysiology of human pregnancy complications. However, the role and the mechanism of maintaining an antioxidant prosurvival uterine environment during normal pregnancy is largely unresolved. Herein we report that the highly active uterine unfolded protein response plays a key role in promoting antioxidant activity in the uterine myocyte across gestation. The unfolded protein response (UPR) senses the accumulation of misfolded proteins in the endoplasmic reticulum (ER) and activates a signaling network that consists of the transmembrane protein kinase eukaryotic translation initiation factor 2 alpha kinase 3/PKR-like-ER kinase (EIF2AK3), which acts to decrease protein translation levels, allowing for a lowered need for protein folding during periods of ER stress. However, independent of its translational regulatory capacity, EIF2AK3-dependent signals elicit the activation of the transcription factor, nuclear factor erythroid 2-like 2 (NFE2L2) in response to oxidative stress. NFE2L2 binds to antioxidant response elements in the promoters of a variety of antioxidant genes that minimize the opportunities for generation of reactive oxygen intermediates. Our analysis demonstrates that in the absence of EIF2AK3, the uterine myocyte experiences increased levels of reactive oxygen species due to decreased NFE2L2 activation. Elevated levels of intracellular reactive oxygen species were observed in the EIF2AK3 null cells, and this was associated with the onset of apoptotic cell death. These findings confirm the prosurvival and antioxidant role of UPR-mediated EIF2AK3 activation in the context of the human uterine myocyte.
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Affiliation(s)
- Saiprasad Ramnarayanan
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan
| | | | - Judith Ingles
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan
| | - MieJung Park-York
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan
| | - Pancharatnam Jeyasuria
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Jennifer C Condon
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
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