1
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Fisch D, Pfleiderer MM, Anastasakou E, Mackie GM, Wendt F, Liu X, Clough B, Lara-Reyna S, Encheva V, Snijders AP, Bando H, Yamamoto M, Beggs AD, Mercer J, Shenoy AR, Wollscheid B, Maslowski KM, Galej WP, Frickel EM. PIM1 controls GBP1 activity to limit self-damage and to guard against pathogen infection. Science 2023; 382:eadg2253. [PMID: 37797010 PMCID: PMC7615196 DOI: 10.1126/science.adg2253] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 08/23/2023] [Indexed: 10/07/2023]
Abstract
Disruption of cellular activities by pathogen virulence factors can trigger innate immune responses. Interferon-γ (IFN-γ)-inducible antimicrobial factors, such as the guanylate binding proteins (GBPs), promote cell-intrinsic defense by attacking intracellular pathogens and by inducing programmed cell death. Working in human macrophages, we discovered that GBP1 expression in the absence of IFN-γ killed the cells and induced Golgi fragmentation. IFN-γ exposure improved macrophage survival through the activity of the kinase PIM1. PIM1 phosphorylated GBP1, leading to its sequestration by 14-3-3σ, which thereby prevented GBP1 membrane association. During Toxoplasma gondii infection, the virulence protein TgIST interfered with IFN-γ signaling and depleted PIM1, thereby increasing GBP1 activity. Although infected cells can restrain pathogens in a GBP1-dependent manner, this mechanism can protect uninfected bystander cells. Thus, PIM1 can provide a bait for pathogen virulence factors, guarding the integrity of IFN-γ signaling.
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Affiliation(s)
- Daniel Fisch
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London, UK
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
| | - Moritz M Pfleiderer
- European Molecular Biology Laboratory, 71 Avenue des Martyrs, Grenoble, France
| | - Eleni Anastasakou
- European Molecular Biology Laboratory, 71 Avenue des Martyrs, Grenoble, France
| | - Gillian M Mackie
- Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, UK
| | - Fabian Wendt
- Department of Health Sciences and Technology (D-HEST), ETH Zurich, Institute of Translational Medicine (ITM), Zurich, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Xiangyang Liu
- European Molecular Biology Laboratory, 71 Avenue des Martyrs, Grenoble, France
| | - Barbara Clough
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
| | - Samuel Lara-Reyna
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
| | - Vesela Encheva
- Mass Spectrometry and Proteomics Platform, The Francis Crick Institute, London, UK
| | - Ambrosius P Snijders
- Mass Spectrometry and Proteomics Platform, The Francis Crick Institute, London, UK
- Bruker Nederland BV
| | - Hironori Bando
- Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Laboratory of Immunoparasitology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Masahiro Yamamoto
- Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Laboratory of Immunoparasitology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Andrew D Beggs
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Jason Mercer
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
| | - Avinash R Shenoy
- MRC Centre for Molecular Bacteriology & Infection, Department of Infectious Disease, Imperial College London, London, UK
- The Francis Crick Institute, London, UK
| | - Bernd Wollscheid
- Department of Health Sciences and Technology (D-HEST), ETH Zurich, Institute of Translational Medicine (ITM), Zurich, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Kendle M Maslowski
- Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Wojtek P Galej
- European Molecular Biology Laboratory, 71 Avenue des Martyrs, Grenoble, France
| | - Eva-Maria Frickel
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London, UK
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
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2
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Wang C, Du M, Jiang Z, Cong R, Wang W, Zhang G, Li L. Comparative proteomic and phosphoproteomic analysis reveals differential heat response mechanism in two congeneric oyster species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115197. [PMID: 37451098 DOI: 10.1016/j.ecoenv.2023.115197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/17/2023] [Accepted: 06/26/2023] [Indexed: 07/18/2023]
Abstract
High-temperature stress caused by global climate change poses a significant threat to marine ectotherms. This study investigated the role of protein phosphorylation modifications in the molecular regulation network under heat stress in oysters, which are representative intertidal organisms that experience considerable temperature changes. Firstly, the study compared the extent of thermal damage between two congeneric oyster species, the relative heat-tolerant Crassostrea angulata (C. angulata) and heat-sensitive Crassostrea gigas (C. gigas), under sublethal temperature (37 °C) for 12 h, using various physiological and biochemical methods. Subsequently, the comparative proteomic and phosphoproteomic analyses revealed that high-temperature considerably regulated signal transduction, energy metabolism, protein synthesis, cell survival and apoptosis, and cytoskeleton remodeling through phosphorylation modifications of related receptors and kinases. Furthermore, the protein kinase A, mitogen-activated protein kinase 1, tyrosine-protein kinase Src, and serine/threonine kinase AKT, exhibiting differential phosphorylation modification patterns, were identified as hub regulators that may enhance glycolysis and TCA cycle to increase the energy supply, distribute protein synthesis, inhibit Caspase-dependent apoptosis activated by endogenous mitochondrial cytochrome release and maintain cytoskeletal stability, ultimately shaping the higher thermal resistance of C. angulata. This study represents the first investigation of protein phosphorylation dynamics in marine invertebrates under heat stress, reveals the molecular mechanisms underlying the differential thermal responses between two Crassostrea oysters at the phosphorylation level, and provides new insights into understanding phosphorylation-mediated molecular responses in marine organisms during environmental changes and predicting the adaptive potential in the context of global warming.
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Affiliation(s)
- Chaogang Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Mingyang Du
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zhuxiang Jiang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Rihao Cong
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Shandong Technology Innovation Center of Oyster Seed Industry, Qingdao, China
| | - Wei Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Shandong Technology Innovation Center of Oyster Seed Industry, Qingdao, China
| | - Guofan Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Shandong Technology Innovation Center of Oyster Seed Industry, Qingdao, China
| | - Li Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Shandong Technology Innovation Center of Oyster Seed Industry, Qingdao, China.
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3
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Chen K, Chen X, Lang C, Yuan X, Huang J, Li Z, Xu M, Wu K, Zhou C, Li Q, Zhu C, Liu L, Shang X. CircFam190a: a critical positive regulator of osteoclast differentiation via enhancement of the AKT1/HSP90β complex. Exp Mol Med 2023; 55:2051-2066. [PMID: 37653038 PMCID: PMC10545668 DOI: 10.1038/s12276-023-01085-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 09/02/2023] Open
Abstract
The identification of key regulatory factors that control osteoclastogenesis is important. Accumulating evidence indicates that circular RNAs (circRNAs) are discrete functional entities. However, the complexities of circRNA expression as well as the extent of their regulatory functions during osteoclastogenesis have yet to be revealed. Here, based on circular RNA sequencing data, we identified a circular RNA, circFam190a, as a critical regulator of osteoclast differentiation and function. During osteoclastogenesis, circFam190a is significantly upregulated. In vitro, circFam190a enhanced osteoclast formation and function. In vivo, overexpression of circFam190a induced significant bone loss, while knockdown of circFam190a prevented pathological bone loss in an ovariectomized (OVX) mouse osteoporosis model. Mechanistically, our data suggest that circFam90a enhances the binding of AKT1 and HSP90β, promoting AKT1 stability. Altogether, our findings highlight the critical role of circFam190a as a positive regulator of osteoclastogenesis, and targeting circFam190a might be a promising therapeutic strategy for treating pathological bone loss.
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Affiliation(s)
- Kun Chen
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Xi Chen
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Chuandong Lang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Xingshi Yuan
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Junming Huang
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, 330000, Nanchang, Jiangxi, China
| | - Zhi Li
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Mingyou Xu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Kerong Wu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Qidong Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China.
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, 230001, Hefei, Anhui, China.
- Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, 230001, Hefei, Anhui, China.
| | - Chen Zhu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China.
| | - Lianxin Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China.
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, 230001, Hefei, Anhui, China.
- Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, 230001, Hefei, Anhui, China.
| | - Xifu Shang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui, China.
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4
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Xu J, Li Y, Kang M, Chang C, Wei H, Zhang C, Chen Y. Multiple forms of cell death: A focus on the PI3K/AKT pathway. J Cell Physiol 2023; 238:2026-2038. [PMID: 37565518 DOI: 10.1002/jcp.31087] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 08/12/2023]
Abstract
Cell death is a natural biological process that occurs in living organisms. Since 1963, extensive research has shed light on the occurrence, progress, and final outcome of cell death. According to different cell phenotypes, it is classified into different types, including apoptosis, pyroptosis, necroptosis, autophagy, ferroptosis, cuproptosis, and so on. However, regardless of the form of cell death, what we ultimately expect is the disappearance of abnormal cells, such as tumor cells, while normal cells survive. As a result, it is vital to investigate the details of cell death, including death triggers, potent regulators, and executioners. Although significant progress has been made in understanding molecular pathways of cell death, many aspects remain unclear because of the complex regulatory networks in cells. Among them, the phosphoinositide-3-kinase (PI3K)/protein kinase B(AKT) pathway is discovered to be a crucial regulator of the cell death process. AKT, as a proto-oncogene, has become a major focus of attention in the medical community due to its role in regulating a multiplicity of cellular functions counting metabolism, immunity, proliferation, survival, transcription, and protein synthesis. Here, we explored the connection between the PI3K/AKT pathway and cell death, aiming to enhance our comprehension of the mechanism underlying this process. Such knowledge may pave the way for the subsequent development of more effective disease treatments, such as finding suitable targets for drug intervention.
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Affiliation(s)
- Jiawei Xu
- Department of Medical Science Research Center, Peihua University, Xi'an, Shaanxi, China
| | - Yu Li
- Department of Medical Science Research Center, Peihua University, Xi'an, Shaanxi, China
| | - Meili Kang
- Department of Medical Science Research Center, Peihua University, Xi'an, Shaanxi, China
| | - Cuicui Chang
- Department of Medical Science Research Center, Peihua University, Xi'an, Shaanxi, China
| | - Hong Wei
- Department of Rehabilitation Teaching and Research, Xi'an Siyuan University, Xi'an, China
| | - Chi Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- The Institute of Skull Base Surgery and Neurooncology at Hunan Province, Changsha, China
| | - Yuhua Chen
- Department of Neurosurgery, Life Science Research Laboratory, Bijie Traditional Chinese Medicine Hospital, Bijie, China
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5
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Yang S, Nie T, She H, Tao K, Lu F, Hu Y, Huang L, Zhu L, Feng D, He D, Qi J, Kukar T, Ma L, Mao Z, Yang Q. Regulation of TFEB nuclear localization by HSP90AA1 promotes autophagy and longevity. Autophagy 2023; 19:822-838. [PMID: 35941759 PMCID: PMC9980472 DOI: 10.1080/15548627.2022.2105561] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/02/2022] Open
Abstract
TFEB (transcription factor EB) regulates multiple genes involved in the process of macroautophagy/autophagy and plays a critical role in lifespan determination. However, the detailed mechanisms that regulate TFEB activity are not fully clear. In this study, we identified a role for HSP90AA1 in modulating TFEB. HSP90AA1 was phosphorylated by CDK5 at Ser 595 under basal condition. This phosphorylation inhibited HSP90AA1, disrupted its binding to TFEB, and impeded TFEB's nuclear localization and subsequent autophagy induction. Pro-autophagy signaling attenuated CDK5 activity and enhanced TFEB function in an HSP90AA1-dependent manner. Inhibition of HSP90AA1 function or decrease in its expression significantly attenuated TFEB's nuclear localization and transcriptional function following autophagy induction. HSP90AA1-mediated regulation of a TFEB ortholog was involved in the extended lifespan of Caenorhabditis elegans in the absence of its food source bacteria. Collectively, these findings reveal that this regulatory process plays an important role in modulation of TFEB, autophagy, and longevity.Abbreviations : AL: autolysosome; AP: autophagosome; ATG: autophagy related; BafA1: bafilomycin A1; CDK5: cyclin-dependent kinase 5; CDK5R1: cyclin dependent kinase 5 regulatory subunit 1; CR: calorie restriction; FUDR: 5-fluorodeoxyuridine; HSP90AA1: heat shock protein 90 alpha family class A member 1; MAP1LC3: microtubule associated protein 1 light chain 3; NB: novobiocin sodium; SQSTM1: sequestosome 1; TFEB: transcription factor EB; WT: wild type.
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Affiliation(s)
- Shaosong Yang
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China
| | - Tiejian Nie
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Hua She
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Kai Tao
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Fangfang Lu
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Yiman Hu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Lu Huang
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Lin Zhu
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Dayun Feng
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Dan He
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Jing Qi
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Thomas Kukar
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
| | - Long Ma
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Zixu Mao
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Qian Yang
- Department of Experimental Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi’an, Shaanxi, China
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6
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Chen Q, Zhou R, Yang C, Jiang Q, Yuan H, Qiu X, Tian H, Zhou J, Liu C. Ergothioneine attenuates varicocele-induced testicular damage by upregulating HSP90AA1 in rats. J Biochem Mol Toxicol 2023; 37:e23301. [PMID: 36644941 DOI: 10.1002/jbt.23301] [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: 03/29/2022] [Revised: 09/12/2022] [Accepted: 01/05/2023] [Indexed: 01/17/2023]
Abstract
This study investigates the therapeutic effect and the underlying mechanisms of ergothioneine (EGT) on the testicular damage caused by varicocele (VC) in vivo, in vitro, and in silico. This preclinical study combines a series of biological experiments and network pharmacology analyses. A total of 18 Sprague Dawley (SD) male rats were randomly and averagely divided into three groups: the sham-operated, VC model, and VC model with EGT treatment (VC + EGT) groups. The left renal vein of the VC model and the VC + EGT groups were half-ligated for 4 weeks. Meanwhile, the VC + EGT group was intragastrically administrated with EGT (10 mg/kg). GC1 and GC2 cells were exposed to H2 O2 with or without EGT treatment to re-verify the conclusion. The structure disorder of seminiferous tubules ameliorated the apoptosis decrease in the VC rats receiving EGT. EGT can also increase the sperm quality of the VC model rats (p < 0.05). The exposure to H2 O2 decreased proliferation and increased apoptosis of GC1 and GC2 cells, which was revisable by adding EGT to the plates (p < 0.05). The network pharmacology and molecular docking were conducted to explore the potential targets of EGT in VC, and HSP90AA1 was identified as the pivotal gene, which was validated by western blot, immunohistochemistry, and RT-qPCR both in vivo and in vitro (p < 0.05). Overall, EGT attenuates the testicular injury in the VC model both in vivo and in vitro by potentially potentiating the expression of HSP90AA1.
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Affiliation(s)
- Qi Chen
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ranran Zhou
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Cheng Yang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Qijun Jiang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Haoyu Yuan
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xin Qiu
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Hu Tian
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Junhao Zhou
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Cundong Liu
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
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7
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PIM1 attenuates renal ischemia-reperfusion injury by inhibiting ASK1-JNK/P38. Int Immunopharmacol 2023; 114:109563. [PMID: 36513021 DOI: 10.1016/j.intimp.2022.109563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
Renal ischemia-reperfusion injury (IRI) is the main cause of acute kidney injury (AKI), yet therapeutic approaches to alleviate IRI remain limited. PIM1 (provirus integration site for Moloney murine leukemia virus 1) is a constitutive serine threonine kinase that phosphorylates various substrates to regulate cell death and survival. However, the role of PIM1 in renal IRI remains unclear. This study aims to investigate the effect of PIM1 on renal IRI and explore its downstream regulatory mechanism. In this study, we inhibited or overexpressed PIM1 in mice and cultured proximal tubular cells, and then induced renal IRI model in vivo and hypoxia reoxygenation (HR) model in vitro. Renal function, renal structure injuries and cellular death were assessed to reflect the extent of IRI. The expression of PIM1 and the levels of ASK1, MAPK and their phosphorylated forms were detected by immunoblot. RNA sequencing of kidney cortex was performed to analyze downstream pathway of PIM1 in renal IRI. The results showed that PIM1 expression was significantly upregulated in renal IRI mouse model and in renal tubular cell HR model. AZD1208 (a PIM1 inhibitor) aggravated renal IRI, while PIM1 overexpression ameliorated renal IRI. This was involved in the regulation of the ASK1-MAPK pathway. Moreover, results demonstrated that ASK1 was a downstream target of PIM1 by administering Selonsertib (an inhibitor of ASK1 activity), and inhibiting ASK1 alleviated cell death after HR in PIM1 knockdown cells by reducing JNK/P38 activation. In conclusion, this study elucidated the protective effect of PIM1 on renal IRI, and the underlying mechanism may be related to ASK1-JNK/P38 signaling pathway. Taken together, PIM1 may be a potential therapeutic target for renal IRI.
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8
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Li M, Hasiqiqige, Huan Y, Wang X, Tao M, Jiang T, Xie H, Jisiguleng W, Xing W, Zhu Z, Wang A, He Y. Calycosin ameliorates spinal cord injury by targeting Hsp90 to inhibit oxidative stress and apoptosis of nerve cells. J Chem Neuroanat 2023; 127:102190. [PMID: 36402284 DOI: 10.1016/j.jchemneu.2022.102190] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/09/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Zhenbao pill is effective in protecting against spinal cord injury (SCI). We attempt to explore the characteristics of calycosin (a main monomer of Zhenbao pill) in SCI and its relative mechanism. METHODS The target of calycosin was screened using pharmacological network analysis. The SCI cell model was constructed using hydrogen peroxide (H2O2), and the animal model was developed by compressing spinal cord with a vascular clamp. Flow cytometry was conducted to test reactive oxygen species (ROS) levels and cell apoptosis. Detection of malondialdehyde (MDA) activity and Superoxide dismutase (SOD) activity were performed using relative kits. Heat shock protein 90 (HSP90) was examined using western blot and quantitative real-time PCR. Motor function tests were carried out. The hematoxylin-eosin and Nissl staining were conducted. RESULTS In SCI models, ROS, MDA, and cell apoptosis were elevated, SOD and HSP90 levels were restrained, while calycosin addition reversed the above results. Besides, calycosin application or HSP90 overexpression enhanced phosphorylation of protein kinase B (Akt) but weakened that of apoptosis signal-regulating kinase 1 (ASK1) and p38, while HSP90 inhibitor 17-AAG treatment restrained the above results. Meanwhile, the injection of calycosin improved the motor function in SCI model rats. Furthermore, the pathologic results also clarified the positive effect of calycosin on SCI. CONCLUSION HSP90 was lowly expressed in SCI models. Calycosin alleviated SCI by promoting HSP90 up-regulation and inhibiting oxidative stress and apoptosis of nerve cells.
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Affiliation(s)
- Mingdong Li
- Department of Orthopaedics and Traumatology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311 Hainan Province, China
| | - Hasiqiqige
- Inner Mongolia innovative Engineering Research Center, Hohhot, 010060 Inner Mongolia, China
| | - Yanqiang Huan
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Xiaolei Wang
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Mingkai Tao
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Tianqi Jiang
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Hongbin Xie
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Wu Jisiguleng
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Wei Xing
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Zhibo Zhu
- Department of Spine Surgery, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China
| | - Aitao Wang
- Department of Anesthesiology, Inner Mongolia People's Hospital, Hohhot, 010017 Inner Mongolia, China.
| | - Yongxiong He
- Department of Spine Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570216 Hainan Province, China.
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9
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Serras F. The sooner, the better: ROS, kinases and nutrients at the onset of the damage response in Drosophila. Front Cell Dev Biol 2022; 10:1047823. [PMID: 36353511 PMCID: PMC9637634 DOI: 10.3389/fcell.2022.1047823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/11/2022] [Indexed: 11/20/2022] Open
Abstract
One of the main topics in regeneration biology is the nature of the early signals that trigger the damage response. Recent advances in Drosophila point to the MAP3 kinase Ask1 as a molecular hub that integrates several signals at the onset of regeneration. It has been discovered that reactive oxygen species (ROS) produced in damaged imaginal discs and gut epithelia will activate the MAP3 kinase Ask1. Severely damaged and apoptotic cells produce an enormous amount of ROS, which ensures their elimination by activating Ask1 and in turn the pro-apoptotic function of JNK. However, this creates an oxidative stress environment with beneficial effects that is sensed by neighboring healthy cells. This environment, in addition to the Pi3K/Akt nutrient sensing pathway, can be integrated into Ask1 to launch regeneration. Ultimately the activity of Ask1 depends on these and other inputs and modulates its signaling to achieve moderate levels of p38 and low JNK signaling and thus promote survival and regeneration. This model based on the dual function of Ask1 for early response to damage is discussed here.
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10
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Crystallographic mining of ASK1 regulators to unravel the intricate PPI interfaces for the discovery of small molecule. Comput Struct Biotechnol J 2022; 20:3734-3754. [PMID: 35891784 PMCID: PMC9294202 DOI: 10.1016/j.csbj.2022.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 11/22/2022] Open
Abstract
Protein seldom performs biological activities in isolation. Understanding the protein–protein interactions’ physical rewiring in response to pathological conditions or pathogen infection can help advance our comprehension of disease etiology, progression, and pathogenesis, which allow us to explore the alternate route to control the regulation of key target interactions, timely and effectively. Nonalcoholic steatohepatitis (NASH) is now a global public health problem exacerbated due to the lack of appropriate treatments. The most advanced anti-NASH lead compound (selonsertib) is withdrawn, though it is able to inhibit its target Apoptosis signal-regulating kinase 1 (ASK1) completely, indicating the necessity to explore alternate routes rather than complete inhibition. Understanding the interaction fingerprints of endogenous regulators at the molecular level that underpin disease formation and progression may spur the rationale of designing therapeutic strategies. Based on our analysis and thorough literature survey of the various key regulators and PTMs, the current review emphasizes PPI-based drug discovery’s relevance for NASH conditions. The lack of structural detail (interface sites) of ASK1 and its regulators makes it challenging to characterize the PPI interfaces. This review summarizes key regulators interaction fingerprinting of ASK1, which can be explored further to restore the homeostasis from its hyperactive states for therapeutics intervention against NASH.
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Key Words
- ASK1
- ASK1, Apoptosis signal-regulating kinase 1
- CFLAR, CASP8 and FADD-like apoptosis regulator
- CREG, Cellular repressor of E1A-stimulated genes
- DKK3, Dickkopf-related protein 3
- Interaction fingerprint
- NAFLD, Non-alcoholic fatty liver disease
- NASH
- NASH, Nonalcoholic steatohepatitis
- PPI, Protein-protein interaction
- PTM, Post-trancriptional modification
- PTMs
- Protein-protein interaction
- TNFAIP3, TNF Alpha Induced Protein 3
- TRAF2/6, Tumor necrosis factor receptor (TNFR)-associated factor2/6
- TRIM48, Tripartite Motif Containing 48
- TRX, Thioredoxin
- USP9X, Ubiquitin Specific Peptidase 9 X-Linked
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11
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Zhang M, Peng Y, Yang Z, Zhang H, Xu C, Liu L, Zhao Q, Wu J, Wang H, Liu J. DAB2IP down-regulates HSP90AA1 to inhibit the malignant biological behaviors of colorectal cancer. BMC Cancer 2022; 22:561. [PMID: 35590292 PMCID: PMC9118737 DOI: 10.1186/s12885-022-09596-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/22/2022] [Indexed: 12/15/2022] Open
Abstract
Background Studies have shown that DAB2IP inhibits cancer progression, while HSP90AA1 promotes cancer progression. However, the specific regulatory mechanism of DAB2IP and HSP90AA1 in colorectal cancer (CRC) is not clear. Our aim is to investigate the role and mechanism of DAB2IP and HSP90AA1 in the development of CRC. Methods We used bioinformation to analyze the interaction between DAB2IP and HSP90AA1 and predict their downstream pathways. Then, a series of in vitro and in vivo experiments were conducted to reveal the role of DAB2IP and HSP90AA1 in the invasion and metastasis of colorectal cancer, and flow cytometry was used to explore their effects on apoptosis. Results Loss of DAB2IP was associated with poor prognosis of CRC. In contrast, elevated expression of HSP90AA1 was associated with the malignant behavior of CRC. The present study demonstrated a negative correlation between DAB2IP and HSP90AA1. Using bioinformatic analysis, we scanned SRP9 which was highly expressed in CRC, as a co-related gene of DAB2IP and HSP90AA1. Mechanistically, DAB2IP promoted apoptosis through HSP90AA1/SRP9/ASK1/JNK signaling axis in CRC. Conclusions These findings provide evidence that DAB2IP-based therapy may enhance the anticancer effect of HSP90AA1 inhibitors, and combined targeting of DAB2IP and HSP90AA1 may be a powerful treatment strategy to combat CRC. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09596-z.
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Affiliation(s)
- Mengna Zhang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Yanan Peng
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Zhenwei Yang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Hailin Zhang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Cong Xu
- Tongji Hospital of Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lan Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China.,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China
| | - Jixiong Wu
- Department of Gastroenterology, Huanggang Central Hospital, Huangzhou District, No.11, Kaopeng Street, HuanggangHubei Province, 438000, China.
| | - Hongling Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China. .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China.
| | - Jing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, No. 169, Donghu Road, Wuchang District, WuhanHubei Province, 430071, China. .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan, 430071, China.
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12
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Hsp90 in Human Diseases: Molecular Mechanisms to Therapeutic Approaches. Cells 2022; 11:cells11060976. [PMID: 35326427 PMCID: PMC8946885 DOI: 10.3390/cells11060976] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
The maturation of hemeprotein dictates that they incorporate heme and become active, but knowledge of this essential cellular process remains incomplete. Studies on chaperon Hsp90 has revealed that it drives functional heme maturation of inducible nitric oxide synthase (iNOS), soluble guanylate cyclase (sGC) hemoglobin (Hb) and myoglobin (Mb) along with other proteins including GAPDH, while globin heme maturations also need an active sGC. In all these cases, Hsp90 interacts with the heme-free or apo-protein and then drives the heme maturation by an ATP dependent process before dissociating from the heme-replete proteins, suggesting that it is a key player in such heme-insertion processes. As the studies on globin maturation also need an active sGC, it connects the globin maturation to the NO-sGC (Nitric oxide-sGC) signal pathway, thereby constituting a novel NO-sGC-Globin axis. Since many aggressive cancer cells make Hbβ/Mb to survive, the dependence of the globin maturation of cancer cells places the NO-sGC signal pathway in a new light for therapeutic intervention. Given the ATPase function of Hsp90 in heme-maturation of client hemeproteins, Hsp90 inhibitors often cause serious side effects and this can encourage the alternate use of sGC activators/stimulators in combination with specific Hsp90 inhibitors for better therapeutic intervention.
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13
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Pungsrinont T, Kallenbach J, Baniahmad A. Role of PI3K-AKT-mTOR Pathway as a Pro-Survival Signaling and Resistance-Mediating Mechanism to Therapy of Prostate Cancer. Int J Mol Sci 2021; 22:11088. [PMID: 34681745 PMCID: PMC8538152 DOI: 10.3390/ijms222011088] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/27/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022] Open
Abstract
Androgen deprivation therapy (ADT) and androgen receptor (AR)-targeted therapy are the gold standard options for treating prostate cancer (PCa). These are initially effective, as localized and the early stage of metastatic disease are androgen- and castration-sensitive. The tumor strongly relies on systemic/circulating androgens for activating AR signaling to stimulate growth and progression. However, after a certain point, the tumor will eventually develop a resistant stage, where ADT and AR antagonists are no longer effective. Mechanistically, it seems that the tumor becomes more aggressive through adaptive responses, relies more on alternative activated pathways, and is less dependent on AR signaling. This includes hyperactivation of PI3K-AKT-mTOR pathway, which is a central signal that regulates cell pro-survival/anti-apoptotic pathways, thus, compensating the blockade of AR signaling. The PI3K-AKT-mTOR pathway is well-documented for its crosstalk between genomic and non-genomic AR signaling, as well as other signaling cascades. Such a reciprocal feedback loop makes it more complicated to target individual factor/signaling for treating PCa. Here, we highlight the role of PI3K-AKT-mTOR signaling as a resistance mechanism for PCa therapy and illustrate the transition of prostate tumor from AR signaling-dependent to PI3K-AKT-mTOR pathway-dependent. Moreover, therapeutic strategies with inhibitors targeting the PI3K-AKT-mTOR signal used in clinic and ongoing clinical trials are discussed.
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Affiliation(s)
| | | | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, 07747 Jena, Germany; (T.P.); (J.K.)
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14
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Ishii T, Warabi E, Mann GE. Mechanisms underlying unidirectional laminar shear stress-mediated Nrf2 activation in endothelial cells: Amplification of low shear stress signaling by primary cilia. Redox Biol 2021; 46:102103. [PMID: 34425388 PMCID: PMC8379703 DOI: 10.1016/j.redox.2021.102103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/07/2021] [Accepted: 08/12/2021] [Indexed: 12/14/2022] Open
Abstract
Endothelial cells are sensitive to mechanical stress and respond differently to oscillatory flow versus unidirectional flow. This review highlights the mechanisms by which a wide range of unidirectional laminar shear stress induces activation of the redox sensitive antioxidant transcription factor nuclear factor-E2-related factor 2 (Nrf2) in cultured endothelial cells. We propose that fibroblast growth factor-2 (FGF-2), brain-derived neurotrophic factor (BDNF) and 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) are potential Nrf2 activators induced by laminar shear stress. Shear stress-dependent secretion of FGF-2 and its receptor-mediated signaling is tightly controlled, requiring neutrophil elastase released by shear stress, αvβ3 integrin and the cell surface glycocalyx. We speculate that primary cilia respond to low laminar shear stress (<10 dyn/cm2), resulting in secretion of insulin-like growth factor 1 (IGF-1), which facilitates αvβ3 integrin-dependent FGF-2 secretion. Shear stress induces generation of heparan-binding epidermal growth factor-like growth factor (HB-EGF), which contributes to FGF-2 secretion and gene expression. Furthermore, HB-EGF signaling modulates FGF-2-mediated NADPH oxidase 1 activation that favors casein kinase 2 (CK2)-mediated phosphorylation/activation of Nrf2 associated with caveolin 1 in caveolae. Higher shear stress (>15 dyn/cm2) induces vesicular exocytosis of BDNF from endothelial cells, and we propose that BDNF via the p75NTR receptor could induce CK2-mediated Nrf2 activation. Unidirectional laminar shear stress upregulates gene expression of FGF-2 and BDNF and generation of 15d-PGJ2, which cooperate in sustaining Nrf2 activation to protect endothelial cells against oxidative damage.
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Affiliation(s)
- Tetsuro Ishii
- School of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
| | - Eiji Warabi
- School of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
| | - Giovanni E Mann
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, 150 Stamford Street, London, SE1 9NH, UK.
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15
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Ding W, Feng H, Li WJ, Liao HH, Zhang N, Zhou ZY, Mou SQ, Lin Z, Xia-He NZ, Xia H, Tang QZ. Apocynin attenuates diabetic cardiomyopathy by suppressing ASK1-p38/JNK signaling. Eur J Pharmacol 2021; 909:174402. [PMID: 34348125 DOI: 10.1016/j.ejphar.2021.174402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 12/19/2022]
Abstract
Diabetic cardiomyopathy (DCM) significantly increased the morbidity of heart failure in diabetic patients. Long-time oxidative stress is an indisputable contributor for DCM development. Apocynin (APO) has been suggested to be a potential drug against oxidative stress. The study aims to find out the effects of APO on DCM and the related mechanisms. Mice were randomly divided into four groups: control (CON), APO, DCM and DCM + APO. Echocardiography analyses, histological analyses, Western blot and RT-PCR were used to explore the roles and mechanisms of APO in DCM. Isolated neonatal rat cardiomyocytes (NRCMs) and cardiac fibroblasts (CFs) were used for further confirming the APO treatment effects in vitro. Deteriorated cardiac function, enlarged cardiomyocytes, excess cardiac fibrosis and significant cardiac oxidative stress were observed in DCM group. However, APO treatment successfully improved cardiac function, decreased cardiac hypertrophy and fibrosis, and depressed oxidative stress. Mechanistically, APO treatment markedly suppressed apoptosis signal regulating kinase 1(ASK1)-p38/c-jun N-terminal kinase (JNK) signaling and reduced apoptosis. It also inhibited NRCM apoptosis and CF activation via depressing ASK1-p38/JNK signaling in vitro. Moreover, adenovirus-mediated ASK1 overexpression completely removed the protection of APO in vitro. In conclusion, APO treatment could effectively attenuate DCM-associated injuries in vivo and protect against high glucose-induced NRCM and CF injuries in vitro via suppressing ASK1-p38/JNK signaling. APO might be a potential ASK1 inhibitor for treating DCM.
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Affiliation(s)
- Wen Ding
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Hong Feng
- Department of Geriatrics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Wen-Jing Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Hai-Han Liao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Nan Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Zi-Ying Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Shan-Qi Mou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Zheng Lin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Na-Zi Xia-He
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Hao Xia
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China.
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16
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Role of PI3K/Akt signaling pathway in cardiac fibrosis. Mol Cell Biochem 2021; 476:4045-4059. [PMID: 34244974 DOI: 10.1007/s11010-021-04219-w] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022]
Abstract
Heart failure (HF) is considered as a severe health problem worldwide, while cardiac fibrosis is one of the main driving factors for the progress of HF. Cardiac fibrosis was characterized by changes in cardiomyocytes, cardiac fibroblasts, ratio of collagen (COL) I/III, and the excessive production and deposition of extracellular matrix (ECM), thus forming a scar tissue, which leads to pathological process of cardiac structural changes and systolic as well as diastolic dysfunction. Cardiac fibrosis is a common pathological change of many advanced cardiovascular diseases including ischemic heart disease, hypertension, and HF. Accumulated studies have proven that phosphoinositol-3 kinase (PI3K)/Akt signaling pathway is involved in regulating the occurrence, progression and pathological formation of cardiac fibrosis via regulating cell survival, apoptosis, growth, cardiac contractility and even the transcription of related genes through a series of molecules including mammalian target of rapamycin (mTOR), glycogen synthase kinase 3 (GSK-3), forkhead box proteins O1/3 (FoxO1/3), and nitric oxide synthase (NOS). Thus, the review focuses on the role of PI3K/Akt signaling pathway in the cardiac fibrosis. The information reviewed here should be significant in understanding the role of PI3K/Akt in cardiac fibrosis and contribute to the design of further studies related to PI3K/Akt and the cardiac fibrotic response, as well as sought to shed light on a potential treatment for cardiac fibrosis.
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17
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Wang CM, Li HF, Wang XK, Li WG, Su Q, Xiao X, Hao TF, Chen W, Zhang YW, Zhang HY, Wu W, Hu ZR, Zhao GY, Huo MY, He YL, Zhang CH. Ailanthus Altissima-derived Ailanthone enhances Gastric Cancer Cell Apoptosis by Inducing the Repression of Base Excision Repair by Downregulating p23 Expression. Int J Biol Sci 2021; 17:2811-2825. [PMID: 34345209 PMCID: PMC8326126 DOI: 10.7150/ijbs.60674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/21/2021] [Indexed: 12/13/2022] Open
Abstract
Chemotherapy plays an irreplaceable role in the treatment of GC, but currently available chemotherapeutic drugs are not ideal. The application of medicinal plants is an important direction for new drug discovery. Through drug screening of GC organoids, we determined that ailanthone has an anticancer effect on GC cells in vitro and in vivo. We also found that AIL can induce DNA damage and apoptosis in GC cells. Further transcriptome sequencing of PDX tissue indicated that AIL inhibited the expression of XRCC1, which plays an important role in DNA damage repair, and the results were also confirmed by western blotting. In addition, we found that AIL inhibited the expression of P23 and that inhibition of P23 decreased the expression of XRCC1, indicating that AIL can regulate XRCC1 via P23. The results of coimmunoprecipitation showed that AIL can inhibit the binding of P23 and XRCC1 to HSP90. These findings indicate that AIL can induce DNA damage and apoptosis in GC cells. Meanwhile, AIL can decrease XRCC1 activity by downregulating P23 expression to inhibit DNA damage repair. The present study sheds light on the potential application of new drugs isolated from natural medicinal plants for GC therapy.
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Affiliation(s)
- Chun-Ming Wang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China.,Department of Intervention, The People's Hospital of Guangxi Zhuang Autonomous Region,Nanning Guangxi 530021,P.R. China
| | - Hua-Fu Li
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK.,The Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Xiao-Kun Wang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wu-Guo Li
- Animal Experiment Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, P.R. China
| | - Qiao Su
- Animal Experiment Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, P.R. China
| | - Xing Xiao
- Scientific research center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R.China
| | - Teng-Fei Hao
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wei Chen
- Scientific research center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R.China
| | - Ya-Wei Zhang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Hai-Yong Zhang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wang Wu
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhen-Ran Hu
- Scientific research center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R.China
| | - Guang-Yin Zhao
- Animal Experiment Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, P.R. China
| | - Ming-Yu Huo
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China
| | - Yu-Long He
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China.,Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Chang-Hua Zhang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518107, P.R. China
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18
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Cote-Hammarlof PA, Fragata I, Flynn J, Mavor D, Zeldovich KB, Bank C, Bolon DNA. The Adaptive Potential of the Middle Domain of Yeast Hsp90. Mol Biol Evol 2021; 38:368-379. [PMID: 32871012 PMCID: PMC7826181 DOI: 10.1093/molbev/msaa211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The distribution of fitness effects (DFEs) of new mutations across different environments quantifies the potential for adaptation in a given environment and its cost in others. So far, results regarding the cost of adaptation across environments have been mixed, and most studies have sampled random mutations across different genes. Here, we quantify systematically how costs of adaptation vary along a large stretch of protein sequence by studying the distribution of fitness effects of the same ≈2,300 amino-acid changing mutations obtained from deep mutational scanning of 119 amino acids in the middle domain of the heat shock protein Hsp90 in five environments. This region is known to be important for client binding, stabilization of the Hsp90 dimer, stabilization of the N-terminal-Middle and Middle-C-terminal interdomains, and regulation of ATPase–chaperone activity. Interestingly, we find that fitness correlates well across diverse stressful environments, with the exception of one environment, diamide. Consistent with this result, we find little cost of adaptation; on average only one in seven beneficial mutations is deleterious in another environment. We identify a hotspot of beneficial mutations in a region of the protein that is located within an allosteric center. The identified protein regions that are enriched in beneficial, deleterious, and costly mutations coincide with residues that are involved in the stabilization of Hsp90 interdomains and stabilization of client-binding interfaces, or residues that are involved in ATPase–chaperone activity of Hsp90. Thus, our study yields information regarding the role and adaptive potential of a protein sequence that complements and extends known structural information.
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Affiliation(s)
| | - Inês Fragata
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Julia Flynn
- University of Massachusetts Medical School, Worcester, MA
| | - David Mavor
- University of Massachusetts Medical School, Worcester, MA
| | | | - Claudia Bank
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Institute of Ecology and Evolution, University of Bern, Switzerland
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19
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Verma A, Sumi S, Seervi M. Heat shock proteins-driven stress granule dynamics: yet another avenue for cell survival. Apoptosis 2021; 26:371-384. [PMID: 33978921 DOI: 10.1007/s10495-021-01678-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2021] [Indexed: 12/24/2022]
Abstract
Heat shock proteins (HSPs) are evolutionary conserved 'stress-response' proteins that facilitate cell survival against various adverse conditions. HSP-mediated cytoprotection was hitherto reported to occur principally in two ways. Firstly, HSPs interact directly or indirectly with apoptosis signaling components and suppress apoptosis. Secondly, through chaperon activity, HSPs suppress proteotoxicity and maintain protein-homeostasis. Recent studies highlight the interaction of HSPs with cytoplasmic stress granules (SGs). SGs are conserved cytoplasmic mRNPs granules that aid in cell survival under stressful conditions. We primarily aim to describe the distinct cell survival strategy mediated by HSPs as the crucial regulators of SGs assembly and disassembly. Based on the growing evidence, HSPs and associated co-chaperones act as important determinants of SG assembly, composition and dissolution. Under cellular stress, as a 'stress-coping mechanism', the formation of SGs reprograms protein translation machinery and modulates signaling pathways indispensable for cell survival. Besides their role in suppressing apoptosis, HSPs also regulate protein-homeostasis by their chaperone activity as well as by their tight regulation of SG dynamics. The intricate molecular signaling in and around the nexus of HSPs-SGs and its importance in diseases has to be unearthed. These studies have significant implications in the management of chronic diseases such as cancer and neurodegenerative diseases where SGs possess pathological functions.
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Affiliation(s)
- Akanksha Verma
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - S Sumi
- Cardiovascular Diseases and Diabetes Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
| | - Mahendra Seervi
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
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20
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McCarty MF, Lerner A. Nutraceutical induction and mimicry of heme oxygenase activity as a strategy for controlling excitotoxicity in brain trauma and ischemic stroke: focus on oxidative stress. Expert Rev Neurother 2020; 21:157-168. [PMID: 33287596 DOI: 10.1080/14737175.2021.1861940] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Introduction: Ischemic stroke and traumatic brain injury are leading causes of acute mortality, and in the longer run, major causes of significant mental and physical impairment. Most of the brain neuronal cell death in the minutes and hours following an ischemic stroke or brain trauma is mediated by the process of excitotoxicity, in which sustained elevations of extracellular glutamate, reflecting a failure of ATP-dependent mechanism which sequester glutamate in neurons and astrocytes, drive excessive activation of NMDA receptors. Areas covered: A literature search was undertaken to clarify the molecular mechanisms whereby excessive NMDA activation leads to excitotoxic neuronal death, and to determine what safe nutraceutical agents might have practical potential for rescuing at-risk neurons by intervening in these mechanisms. Expert opinion: Activation of both NADPH oxidase and neuronal nitric oxide synthase in the microenvironment of activated NMDA receptors drives production of superoxide and highly toxic peroxynitrite. This leads to excessive activation of PARP and p38 MAP kinase, mitochondrial dysfunction, and subsequent neuronal death. Heme oxygenase-1 (HO-1) induction offers protection via inhibition of NADPH oxidase and promotion of cGMP generation. Phase 2-inductive nutraceuticals can induce HO-1, and other nutraceuticals can mimic the effects of its products biliverdin and carbon monoxide.
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Affiliation(s)
| | - Aaron Lerner
- Technion Israel Institute of Technology Ruth and Bruce Rappaport Faculty of Medicine- Research, Haifa, Israel (Retired)
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21
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Tan L, Register TC, Yammani RR. Age-Related Decline in Expression of Molecular Chaperones Induces Endoplasmic Reticulum Stress and Chondrocyte Apoptosis in Articular Cartilage. Aging Dis 2020; 11:1091-1102. [PMID: 33014525 PMCID: PMC7505268 DOI: 10.14336/ad.2019.1130] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 11/30/2019] [Indexed: 12/27/2022] Open
Abstract
Aging is a major risk factor for the development of osteoarthritis (OA). One hallmark of aging is loss of proteostasis resulting in increased cellular stress and cell death. However, its effect on the development of OA is not clear. Here, using knee articular cartilage tissue from young and old cynomolgus monkeys (Macaca fascicularis), we demonstrate that with aging there is loss of molecular chaperone expression resulting in endoplasmic reticulum (ER) stress and cell death. Chondrocytes from aged articular cartilage showed decreased expression of molecular chaperones, including protein disulfide isomerase, calnexin, and Ero1-like protein alpha, and increased immunohistochemical staining for ER stress markers (phosphorylated IRE1 alpha, spliced X-box binding protein-1, activating transcription factor 4 and C/EBP homologous protein), and apoptotic markers [cleaved caspase 3 and cleaved poly(ADP-ribose) polymerase], suggesting that decreased expression of molecular chaperone during aging induces ER stress and chondrocyte apoptosis in monkey articular cartilage. Apoptosis induced by aging-associated ER stress was further confirmed by TUNEL staining. Aged monkey cartilage also showed increased expression of nuclear protein 1 (Nupr1) and tribbles related protein-3 (TRB3), known regulators of apoptosis and cell survival pathways. Treatment of cultured monkey chondrocytes with a small molecule chemical chaperone, 4-phenylbutyric acid (PBA, a general ER stress inhibitor) or PERK Inhibitor I (an ER stress inhibitor specifically targeting the PERK branch of the unfolded protein response pathway), decreased the expression of ER stress and apoptotic markers and reduced the expression of Nupr1 and TRB3. Consistent with the above finding, knockdown of calnexin expression induces ER stress and apoptotic markers in normal human chondrocytes in vitro. Taken together, our study clearly demonstrates that aging promotes loss of proteostasis and induces ER stress and chondrocyte apoptosis in articular cartilage. Thus, restoring proteostasis using chemical/molecular chaperone or ER stress inhibitor could be a therapeutic option to treat aged-linked OA.
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Affiliation(s)
- Li Tan
- Section of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Thomas C Register
- Departments of Pathology and Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Raghunatha R Yammani
- Section of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
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22
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Abbaszadeh F, Fakhri S, Khan H. Targeting apoptosis and autophagy following spinal cord injury: Therapeutic approaches to polyphenols and candidate phytochemicals. Pharmacol Res 2020; 160:105069. [PMID: 32652198 DOI: 10.1016/j.phrs.2020.105069] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022]
Abstract
Spinal cord injury (SCI) is a neurological disorder associated with the loss of sensory and motor function. Understanding the precise dysregulated signaling pathways, especially apoptosis and autophagy following SCI, is of vital importance in developing innovative therapeutic targets and treatments. The present study lies in the fact that it reveals the precise dysregulated signaling mediators of apoptotic and autophagic pathways following SCI and also examines the effects of polyphenols and other candidate phytochemicals. It provides new insights to develop new treatments for post-SCI complications. Accordingly, a comprehensive review was conducted using electronic databases including, Scopus, Web of Science, PubMed, and Medline, along with the authors' expertise in apoptosis and autophagy as well as their knowledge about the effects of polyphenols and other phytochemicals on SCI pathogenesis. The primary mechanical injury to spinal cord is followed by a secondary cascade of apoptosis and autophagy that play critical roles during SCI. In terms of pharmacological mechanisms, caspases, Bax/Bcl-2, TNF-α, and JAK/STAT in apoptosis along with LC3 and Beclin-1 in autophagy have shown a close interconnection with the inflammatory pathways mainly glutamatergic, PI3K/Akt/mTOR, ERK/MAPK, and other cross-linked mediators. Besides, apoptotic pathways have been shown to regulate autophagy mediators and vice versa. Prevailing evidence has highlighted the importance of modulating these signaling mediators/pathways by polyphenols and other candidate phytochemicals post-SCI. The present review provides dysregulated signaling mediators and therapeutic targets of apoptotic and autophagic pathways following SCI, focusing on the modulatory effects of polyphenols and other potential phytochemical candidates.
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Affiliation(s)
- Fatemeh Abbaszadeh
- Department of Neuroscience, Faculty of Advanced Technologies in Medical Sciences, Iran University of Medical Sciences, Tehran, Iran; Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
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23
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Wu J, Zhang W, Li C. Recent Advances in Genetic and Epigenetic Modulation of Animal Exposure to High Temperature. Front Genet 2020; 11:653. [PMID: 32733534 PMCID: PMC7358359 DOI: 10.3389/fgene.2020.00653] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/29/2020] [Indexed: 12/12/2022] Open
Abstract
Animals have evolved multiple systems, including genetic and epigenetic systems, to respond accordingly to heat exposure and heat acclimation. Heat exposure greatly affects immunity, changes metabolic processes, and poses a serious threat to animals. Heat acclimation is induced by repeated organism exposure to heat stress to dissipate heat. This review focuses on genetic modulation via heat shock transcription factors and calcium as two important factors and compares the changes in HSPs under heat stress and heat acclimation. Epigenetic regulation summarizes the role of HSPs in DNA methylation and histone modifications under heat stress and heat acclimation. These genetic and epigenetic modifications protect cells from thermal damage by mediating the transcriptional levels of heat-responsive genes. This review highlights recent advances in the genetic and epigenetic control of animal thermal responses and their interactions.
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Affiliation(s)
- Jiong Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Weiwei Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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24
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Pungsrinont T, Sutter MF, Ertingshausen MCCM, Lakshmana G, Kokal M, Khan AS, Baniahmad A. Senolytic compounds control a distinct fate of androgen receptor agonist- and antagonist-induced cellular senescent LNCaP prostate cancer cells. Cell Biosci 2020; 10:59. [PMID: 32351687 PMCID: PMC7183592 DOI: 10.1186/s13578-020-00422-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/17/2020] [Indexed: 12/11/2022] Open
Abstract
Background The benefit of inducing cellular senescence as a tumor suppressive strategy remains questionable due to the senescence-associated secretory phenotype. Hence, studies and development of senolytic compounds that induce cell death in senescent cells have recently emerged. Senescent cells are hypothesized to exhibit different upregulated pro-survival/anti-apoptotic networks depending on the senescent inducers. This might limit the effect of a particular senolytic compound that targets rather only a specific pathway. Interestingly, cellular senescence in prostate cancer (PCa) cells can be induced by either androgen receptor (AR) agonists at supraphysiological androgen level (SAL) used in bipolar androgen therapy or by AR antagonists. This challenges to define ligand-specific senolytic compounds. Results Here, we first induced cellular senescence by treating androgen-sensitive PCa LNCaP cells with either SAL or the AR antagonist Enzalutamide (ENZ). Subsequently, cells were incubated with the HSP90 inhibitor Ganetespib (GT), the Bcl-2 family inhibitor ABT263, or the Akt inhibitor MK2206 to analyze senolysis. GT and ABT263 are known senolytic compounds. We observed that GT exhibits senolytic activity specifically in SAL-pretreated PCa cells. Mechanistically, GT treatment results in reduction of AR, Akt, and phospho-S6 (p-S6) protein levels. Surprisingly, ABT263 lacks senolytic effect in both AR agonist- and antagonist-pretreated cells. ABT263 treatment does not affect AR, Akt, or S6 protein levels. Treatment with MK2206 does not reduce AR protein level and, as expected, potently inhibits Akt phosphorylation. However, ENZ-induced cellular senescent cells undergo apoptosis by MK2206, whereas SAL-treated cells are resistant. In line with this, we reveal that the pro-survival p-S6 level is higher in SAL-induced cellular senescent PCa cells compared to ENZ-treated cells. These data indicate a difference in the agonist- or antagonist-induced cellular senescence and suggest a novel role of MK2206 as a senolytic agent preferentially for AR antagonist-treated cells. Conclusion Taken together, our data suggest that both AR agonist and antagonist induce cellular senescence but differentially upregulate a pro-survival signaling which preferentially sensitize androgen-sensitive PCa LNCaP cells to a specific senolytic compound.
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Affiliation(s)
- Thanakorn Pungsrinont
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany
| | - Malika Franziska Sutter
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany.,2Department of Hematology and Medical Oncology, Jena University Hospital, Jena, Germany
| | | | - Gopinath Lakshmana
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany
| | - Miriam Kokal
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany
| | - Amir Saeed Khan
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany.,3Laboratory for Experimental Immunology of the Eye, Department of Ophthalmology, University Hospital Cologne, Cologne, Germany
| | - Aria Baniahmad
- 1Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany
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25
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Chen F, Xie H, Bao H, Violetta L, Zheng S. Combination of HSP90 and autophagy inhibitors promotes hepatocellular carcinoma apoptosis following incomplete thermal ablation. Mol Med Rep 2020; 22:337-343. [PMID: 32319654 PMCID: PMC7248472 DOI: 10.3892/mmr.2020.11080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 02/24/2020] [Indexed: 12/14/2022] Open
Abstract
The present study evaluated the effect of combining inhibitors (17-AAG) of heat shock protein 90 (HSP90) and autophagy (3-MA) on apoptosis using an incomplete thermal ablation animal model. A total of 28 orthotopic mice with hepatocellular carcinoma were randomly divided into 4 groups to receive different drug interventions. Following palliative laser ablation, changes in autophagy, apoptosis and Akt/mTOR expression levels were assessed in tumors. Compared with the controls, the 17-AAG-treated mice exhibited significantly decreased expression levels of phosphorylated (p)-Akt and p-mTOR with enhanced autophagy and apoptosis; no marked increases in the expression levels of p-Akt and p-mTOR were observed in the 3-MA-treated mice, with no significant changes in autophagy; however, apoptosis was enhanced. No significant decreases in p-Akt and p-mTOR or any increase in autophagy were observed in the mice receiving a combination of 17-AAG and 3-MA, but they did exhibit a marked increase in apoptosis. Compared with 17-AAG alone, the combination of 17-AAG and 3-MA resulted in a marked increase in apoptosis without enhanced autophagy. In the incomplete ablation model, the effects of autophagy and apoptosis are antagonistic. The combined use of 17-AAG and 3-MA can significantly promote apoptosis and is worthy of further study.
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Affiliation(s)
- Fen Chen
- Department of Ultrasound, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310002, P.R. China
| | - Haiyang Xie
- Key Laboratory of Combined Multi‑organ Transplantation, Ministry of Public Health, Division of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310002, P.R. China
| | - Haiwei Bao
- Department of Ultrasound, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310002, P.R. China
| | - Laurencia Violetta
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, Zhejiang University, Hangzhou, Zhejiang 310002, P.R. China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310002, P.R. China
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26
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Yin L, Chen X, Ji H, Gao S. Dexmedetomidine protects against sepsis‑associated encephalopathy through Hsp90/AKT signaling. Mol Med Rep 2019; 20:4731-4740. [PMID: 31702043 DOI: 10.3892/mmr.2019.10718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 09/04/2019] [Indexed: 11/06/2022] Open
Abstract
Sepsis‑associated encephalopathy (SAE) is characterized by neuronal apoptosis and changes in mental status. Accumulating evidence has. indicated that dexmedetomidine is capable of protecting the brain against external stimuli and improving cognitive dysfunctions. The aim of the present study was to investigate the possible neuroprotective effects of dexmedetomidine on SAE and the role of heat‑shock protein (Hsp)90/AKT signaling in an experimental model of sepsis. The SAE model was established by cecal ligation and perforation (CLP) in vivo and lipopolysaccharide (LPS) treated hippocampal neuronal cultures in vitro. It was found that dexmedetomidine inhibited caspase‑3, but increased the expression level ofBcl‑2 in CLP rats. CLP rats also exhibited a decreased level of phosphorylated AKT Thr 308 and Hsp90, and their expression could be reversed by treatment with dexmedetomidine. Additionally, application of dexmedetomidine increased cell survival and decreased neuronal apoptosis in vitro. Furthermore, the neuroprotective effects of dexmedetomidine could be reversed by 17‑AAG (a Hsp90 inhibitor), or wortmannin (a PI3K inhibitor). Analysis of TUNEL staining indicated that dexmedetomidine improved LPS‑induced neuronal apoptosis, which could be eradicated by AKT short hairpin RNA transfection, prazosin or yohimbine. Finally, dexmedetomidine ameliorated both the emotional and spatial cognitive disorders without alteration in locomotor activity. The present findings suggested that dexmedetomidine may protect the brain against SAE, and that the Hsp90/AKT pathway may be involved in this process.
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Affiliation(s)
- Lijun Yin
- Department of Anesthesiology, Tianjin Baodi Hospital, Baodi Clinical College of Tianjin Medical University, Tianjin 301800, P.R. China
| | - Xuejun Chen
- Department of Anesthesiology, Tianjin Baodi Hospital, Baodi Clinical College of Tianjin Medical University, Tianjin 301800, P.R. China
| | - Hongbo Ji
- Department of Anesthesiology, Tianjin Baodi Hospital, Baodi Clinical College of Tianjin Medical University, Tianjin 301800, P.R. China
| | - Shunli Gao
- Department of Anesthesiology, Tianjin Baodi Hospital, Baodi Clinical College of Tianjin Medical University, Tianjin 301800, P.R. China
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Animal Models for Human Polycystic Ovary Syndrome (PCOS) Focused on the Use of Indirect Hormonal Perturbations: A Review of the Literature. Int J Mol Sci 2019; 20:ijms20112720. [PMID: 31163591 PMCID: PMC6600358 DOI: 10.3390/ijms20112720] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/14/2019] [Accepted: 05/23/2019] [Indexed: 02/07/2023] Open
Abstract
Hormonal disturbances, such as hyperandrogenism, are considered important for developing polycystic ovary syndrome (PCOS) in humans. Accordingly, directly hormone-regulated animal models are widely used for studying PCOS, as they replicate several key PCOS features. However, the pathogenesis and treatment of PCOS are still unclear. In this review, we aimed to investigate animal PCOS models and PCOS-like phenotypes in animal experiments without direct hormonal interventions and determine the underlying mechanisms for a better understanding of PCOS. We summarized animal PCOS models that used indirect hormonal interventions and suggested or discussed pathogenesis of PCOS-like features in animals and PCOS-like phenotypes generated in other animals. We presented integrated physiological insights and shared cellular pathways underlying the pathogenesis of PCOS in reviewed animal models. Our review indicates that the hormonal and metabolic changes could be due to molecular dysregulations, such as upregulated PI3K-Akt and extracellular signal-regulated kinase (ERK) signalling, that potentially cause PCOS-like phenotypes in the animal models. This review will be helpful for considering alternative animal PCOS models to determine the cellular/molecular mechanisms underlying PCOS symptoms. The efforts to determine the specific cellular mechanisms of PCOS will contribute to novel treatments and control methods for this complex syndrome.
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28
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Nupr1 regulates palmitate-induced apoptosis in human articular chondrocytes. Biosci Rep 2019; 39:BSR20181473. [PMID: 30674641 PMCID: PMC6379229 DOI: 10.1042/bsr20181473] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 01/04/2019] [Accepted: 01/09/2019] [Indexed: 12/18/2022] Open
Abstract
Obesity, a major risk factor for the development of osteoarthritis (OA), is associated with increased circulating levels of free fatty acids (FFA). However, the role of these FFAs in OA pathophysiology is not clearly understood. In the present study, we found that palmitate treatment of human primary articular chondrocytes increased the expression of ER stress markers [activating transcription factor 4 (ATF4), C/EBP homologous protein (CHOP)] and apoptosis markers [cytochrome c and cleaved caspase-3 (CC3)]. Palmitate treatment also increased the expression of Nuclear protein 1 (Nupr1) and tribbles related protein 3 (TRB3), which are known negative regulators of cell survival pathways. Knockdown of Nupr1 or CHOP expression inhibited palmitate mediated increased expression of TRB3 and CC3, indicating that Nupr1 and CHOP cooperate to regulate cell survival and apoptotic pathways in human chondrocytes. Nupr1 knockdown had no effect on CHOP expression whereas CHOP knockdown abolished the palmitate-mediated Nupr1 expression, indicating that CHOP is functional upstream to Nupr1 in this pathway. Moreover, overexpression of Nupr1 markedly increased the basal expression of pro-apoptotic molecules, including cytochrome c and CC3. Taken together, our study demonstrates that Nupr1 plays a crucial role in palmitate-induced apoptosis in human chondrocytes and Nupr1 as a potential novel drug target for the treatment of OA.
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29
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Ghosh A, Stuehr DJ. Hsp90 and Its Role in Heme-Maturation of Client Proteins: Implications for Human Diseases. HEAT SHOCK PROTEINS 2019. [DOI: 10.1007/978-3-030-23158-3_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Sab concentrations indicate chemotherapeutic susceptibility in ovarian cancer cell lines. Biochem J 2018; 475:3471-3492. [PMID: 30322886 DOI: 10.1042/bcj20180603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/08/2018] [Accepted: 10/11/2018] [Indexed: 01/05/2023]
Abstract
The occurrence of chemotherapy-resistant tumors makes ovarian cancer (OC) the most lethal gynecological malignancy. While many factors may contribute to chemoresistance, the mechanisms responsible for regulating tumor vulnerability are under investigation. Our analysis of gene expression data revealed that Sab, a mitochondrial outer membrane (MOM) scaffold protein, was down-regulated in OC patients. Sab-mediated signaling induces cell death, suggesting that this apoptotic pathway is diminished in OC. We examined Sab expression in a panel of OC cell lines and found that the magnitude of Sab expression correlated to chemo-responsiveness; wherein, OC cells with low Sab levels were chemoresistant. The Sab levels were reflected by a corresponding amount of stress-induced c-Jun N-terminal kinase (JNK) on the MOM. BH3 profiling and examination of Bcl-2 and BH3-only protein concentrations revealed that cells with high Sab concentrations were primed for apoptosis, as determined by the decrease in pro-survival Bcl-2 proteins and an increase in pro-apoptotic BH3-only proteins on mitochondria. Furthermore, overexpression of Sab in chemoresistant cells enhanced apoptotic priming and restored cellular vulnerability to a combination treatment of cisplatin and paclitaxel. Contrariwise, inhibiting Sab-mediated signaling or silencing Sab expression in a chemosensitive cell line resulted in decreased apoptotic priming and increased resistance. The effects of silencing on Sab on the resistance to chemotherapeutic agents were emulated by the silencing or inhibition of JNK, which could be attributed to changes in Bcl-2 protein concentrations induced by sub-chronic JNK inhibition. We propose that Sab may be a prognostic biomarker to discern personalized treatments for OC patients.
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31
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Chen F, Bao H, Xie H, Tian G, Jiang T. Heat shock protein expression and autophagy after incomplete thermal ablation and their correlation. Int J Hyperthermia 2018; 36:95-103. [PMID: 30428719 DOI: 10.1080/02656736.2018.1536285] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE To establish a model of incomplete ablation in nude mice with hepatocellular carcinoma (HCC) and to evaluate heat shock protein (HSP) expression and autophagy and their correlation. MATERIALS AND METHODS In the first stage, 12 nude mice with HCC were randomly divided into two groups (n = 6). A sham puncture operation was performed for one group, and palliative laser ablation was performed for the other group. All mice were sacrificed after 18 h, and HSP expression, autophagy, and apoptosis were assessed. In the second stage, 16 nude mice with HCC were randomly divided into two groups (n = 8). One group was given an HSP90 inhibitor before the operation, and the other group was given dimethyl sulfoxide (DMSO) as a control. HSP expression, autophagy and apoptosis were assessed for the two groups after palliative laser ablation. RESULTS In the incomplete ablation model, using nude mice with HCC, HSP90, HSP70, and HSP27 expression was up-regulated, Akt and mTOR phosphorylation was enhanced, autophagy was decreased, and apoptosis was increased. After administration of the HSP90 inhibitor, HSP90, P-Akt, and P-mTOR expression was decreased, autophagy was increased, and apoptosis was further increased. CONCLUSION Autophagy was decreased in the incomplete ablation model and might be inversely correlated with HSP expression. It is suggested that the HSP90/Akt/mTOR pathway is involved in signal transmission between autophagy and HSPs.
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Affiliation(s)
- Fen Chen
- a Hepatobiliary and Pancreatic Intervention Center, The First affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , China
| | - Haiwei Bao
- a Hepatobiliary and Pancreatic Intervention Center, The First affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , China
| | - Haiyang Xie
- a Hepatobiliary and Pancreatic Intervention Center, The First affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , China
| | - Guo Tian
- a Hepatobiliary and Pancreatic Intervention Center, The First affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , China
| | - Tianan Jiang
- a Hepatobiliary and Pancreatic Intervention Center, The First affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , China
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32
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ASK Family Kinases Are Required for Optimal NLRP3 Inflammasome Priming. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:1021-1030. [PMID: 29353059 DOI: 10.1016/j.ajpath.2017.12.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 11/22/2017] [Accepted: 12/11/2017] [Indexed: 12/18/2022]
Abstract
Activation of the multimeric inflammasome complex leads to inflammatory responses to biotic and abiotic triggers. The inflammasome sensor, Nod-like receptor family pyrin domain containing 3 (NLRP3), is activated by a range of stimuli and is tightly regulated to restrict excessive inflammation. Because NLRP3 responds broadly to cellular insults and regulates cell death similar to the stress-activated apoptosis signal-regulating kinases 1 and 2 (ASK1/2), we hypothesized that ASK1/2 may regulate NLRP3 activity. Although essential for mediating NLRP3 inflammasome activation, ASK1/2 were not required for NLRC4 or absent in melanoma 2 inflammasome activation. ASK1/2 was required for NLRP3 up-regulation after lipopolysaccharide treatment in primary bone marrow-derived macrophages and lung fibroblasts as well as during infection with Burkholderia thailandensis and influenza virus. Consistent with reduced NLRP3 expression in response to B. thailandensis, caspase-1 cleavage and cell death were reduced in infected bone marrow-derived macrophages, and mice lacking ASK1/2 were resistant to Burkholderia intranasal infection. Single knockouts of either ASK1 or ASK2 showed a partial role for both ASK1 and ASK2 in NLRP3 up-regulation in response to lipopolysaccharide or B. thailandensis, but ASK2 was required primarily to mediate lethal pathology during intranasal infection in vivo. Our findings identify the ASK1/2 complex as a regulator of NLRP3 activation and highlight a larger role for ASK2 in lung infection during B. thailandensis infection.
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Heat stress prevents lipopolysaccharide-induced apoptosis in pulmonary microvascular endothelial cells by blocking calpain/p38 MAPK signalling. Apoptosis 2018; 21:896-904. [PMID: 27325431 DOI: 10.1007/s10495-016-1263-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Pulmonary microvascular endothelial cells (PMECs) injury including apoptosis plays an important role in the pathogenesis of acute lung injury during sepsis. Our recent study has demonstrated that calpain activation contributes to apoptosis in PMECs under septic conditions. This study investigated how calpain activation mediated apoptosis and whether heat stress regulated calpain activation in lipopolysaccharides (LPS)-stimulated PMECs. In cultured mouse primary PMECs, incubation with LPS (1 μg/ml, 24 h) increased active caspase-3 fragments and DNA fragmentation, indicative of apoptosis. These effects of LPS were abrogated by pre-treatment with heat stress (43 °C for 2 h). LPS also induced calpain activation and increased phosphorylation of p38 MAPK. Inhibition of calpain and p38 MAPK prevented apoptosis induced by LPS. Furthermore, inhibition of calpain blocked p38 MAPK phosphorylation in LPS-stimulated PMECs. Notably, heat stress decreased the protein levels of calpain-1/2 and calpain activities, and blocked p38 MAPK phosphorylation in response to LPS. Additionally, forced up-regulation of calpain-1 or calpain-2 sufficiently induced p38 MAPK phosphorylation and apoptosis in PMECs, both of which were inhibited by heat stress. In conclusion, heat stress prevents LPS-induced apoptosis in PMECs. This effect of heat stress is associated with down-regulation of calpain expression and activation, and subsequent blockage of p38 MAPK activation in response to LPS. Thus, blocking calpain/p38 MAPK pathway may be a novel mechanism underlying heat stress-mediated inhibition of apoptosis in LPS-stimulated endothelial cells.
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Dávila-González D, Choi DS, Rosato RR, Granados-Principal SM, Kuhn JG, Li WF, Qian W, Chen W, Kozielski AJ, Wong H, Dave B, Chang JC. Pharmacological Inhibition of NOS Activates ASK1/JNK Pathway Augmenting Docetaxel-Mediated Apoptosis in Triple-Negative Breast Cancer. Clin Cancer Res 2018; 24:1152-1162. [PMID: 29301832 DOI: 10.1158/1078-0432.ccr-17-1437] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 11/06/2017] [Accepted: 12/21/2017] [Indexed: 11/16/2022]
Abstract
Purpose: Chemoresistance in triple-negative breast cancer (TNBC) is associated with the activation of a survival mechanism orchestrated by the endoplasmic reticulum (EnR) stress response and by inducible nitric oxide synthase (iNOS). Our aim was to determine the effects of pharmacologic NOS inhibition on TNBC.Experimental Design: TNBC cell lines, SUM-159PT, MDA-MB-436, and MDA-MB-468, were treated with docetaxel and NOS inhibitor (L-NMMA) for 24, 48, and 72 hours. Apoptosis was assessed by flow cytometry using Annexin-V and propidium iodide. Western blot was used to assess ER stress and apoptosis, and rtPCR was used to evaluate s-XBP1. TNBC patient-derived xenografts (PDX) were treated either with vehicle, docetaxel, or combination therapy (NOS inhibition + docetaxel). Mouse weight and tumor volumes were recorded twice weekly. Docetaxel concentration was determined using mass spectrometry. To quantify proliferation and apoptosis, PDX tumor samples were stained using Ki67 and TUNEL assay.Results:In vitro, L-NMMA ameliorated the iNOS upregulation associated with docetaxel. Apoptosis increased when TNBC cells were treated with combination therapy. In TNBC PDXs, combination therapy significantly reduced tumor volume growth and increased survival proportions. In the BCM-5998 PDX model, intratumoral docetaxel concentration was higher in mice receiving combination therapy. Coupling docetaxel with NOS inhibition increased EnR-stress response via coactivation of ATF4 and CHOP, which triggered the pASK1/JNK proapoptotic pathway, promoting cleavage of caspases 3 and 9.Conclusions: iNOS is a critical target for docetaxel resistance in TNBC. Pharmacologic inhibition of NOS enhanced chemotherapy response in TNBC PDX models. Combination therapy may improve prognosis and prevent relapse in TNBC patients who have failed conventional chemotherapy. Clin Cancer Res; 24(5); 1152-62. ©2018 AACR.
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Affiliation(s)
- Daniel Dávila-González
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas.,Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Monterrey N.L., México
| | - Dong Soon Choi
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | - Roberto R Rosato
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | - Sergio M Granados-Principal
- Departamento de oncología médica, Complejo Hospitalario de Jaén, Jaén, Spain.,GENYO, Center for Genomics and Oncological Research (Pfizer/University of Granada/Andalusian Regional Government), PTS Granada, Granada, Spain
| | - John G Kuhn
- College of Pharmacy, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Wen-Feng Li
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas.,Department of Medical Oncology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wei Qian
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | - Wen Chen
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | | | - Helen Wong
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | - Bhuvanesh Dave
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas
| | - Jenny C Chang
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, Texas.
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Zhang XH, Wu H, Tang S, Li QN, Xu J, Zhang M, Su YN, Yin B, Zhao QL, Kemper N, Hartung J, Bao ED. Apoptosis in response to heat stress is positively associated with heat-shock protein 90 expression in chicken myocardial cells in vitro. J Vet Sci 2018; 18:129-140. [PMID: 27297424 PMCID: PMC5489459 DOI: 10.4142/jvs.2017.18.2.129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/24/2016] [Accepted: 05/12/2016] [Indexed: 11/29/2022] Open
Abstract
To determine heat-shock protein (Hsp)90 expression is connected with cellular apoptotic response to heat stress and its mechanism, chicken (Gallus gallus) primary myocardial cells were treated with the Hsp90 promoter, aspirin, and its inhibitor, geldanamycin (GA), before heat stress. Cellular viability, heat-stressed apoptosis and reactive oxygen species level under different treatments were measured, and the expression of key proteins of the signaling pathway related to Hsp90 and their colocalization with Hsp90 were detected. The results showed that aspirin treatment increased the expression of protein kinase B (Akt), the signal transducer and activator of transcription (STAT)-3 and p-IKKα/β and the colocalization of Akt and STAT-3 with Hsp90 during heat stress, which was accompanied by improved viability and low apoptosis. GA significantly inhibited Akt expression and p-IKKα/β level, but not STAT-3 quantity, while the colocalization of Akt and STAT-3 with Hsp90 was weakened, followed by lower cell viability and higher apoptosis. Aspirin after GA treatment partially improved the stress response and apoptosis rate of tested cells caused by the recovery of Akt expression and colocalization, rather than the level of STAT-3 (including its co-localization with Hsp90) and p-IKKα/β. Therefore, Hsp90 expression has a positive effect on cellular capacity to resist heat-stressed injury and apoptosis. Moreover, inhibition of Hsp90 before stress partially attenuated its positive effects.
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Affiliation(s)
- Xiao-Hui Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Wu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu Tang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Qiao-Ning Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiao Xu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Miao Zhang
- College of Animal Science and Technology, Jinling Institute of Technology, Nanjing 210038, China
| | - Ya-Nan Su
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin Yin
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi-Ling Zhao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Nicole Kemper
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, Hannover 30173, Germany
| | - Joerg Hartung
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, Hannover 30173, Germany
| | - En-Dong Bao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
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Yin M, Zhou HJ, Zhang J, Lin C, Li H, Li X, Li Y, Zhang H, Breckenridge DG, Ji W, Min W. ASK1-dependent endothelial cell activation is critical in ovarian cancer growth and metastasis. JCI Insight 2017; 2:91828. [PMID: 28931753 DOI: 10.1172/jci.insight.91828] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 08/11/2017] [Indexed: 02/06/2023] Open
Abstract
We have recently reported that tumor-associated macrophages (TAMs) promote early transcoelomic metastasis of ovarian cancer by facilitating TAM-ovarian cancer cell spheroid formation. ASK1 is known to be important for macrophage activation and inflammation-mediated tumorigenesis. In the present study, we show that ASK1 deficiency attenuates TAM-spheroid formation and ovarian cancer progression in an orthotopic ovarian cancer model. Interestingly, ASK1 in stroma, but not in TAMs, is critical for peritoneal tumor growth of ovarian cancer. Moreover, overexpression of an ASK1 inhibitory protein (suppressor of cytokine signaling-1; SOCS1) in vascular endothelium attenuates vascular permeability, TAM infiltration, and ovarian cancer growth. Mechanistically, we show that ASK1 mediates degradation of endothelial junction protein VE-cadherin via a lysosomal pathway to promote macrophage transmigration. Importantly, a pharmacological ASK1 inhibitor prevents tumor-induced vascular leakage, macrophage infiltration, and tumor growth in two mouse models. Since transcoelomic metastasis is also associated with many other cancers, such as pancreatic and colon cancers, our study provides ASK1 as a therapeutic target for the treatment of ovarian cancer and other transcoelomic metastasis cancers.
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Affiliation(s)
- Mingzhu Yin
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Huanjiao Jenny Zhou
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jiqin Zhang
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA.,Center for Translational Medicine, The First Affiliated Hospital, and
| | - Caixia Lin
- Center for Translational Medicine, The First Affiliated Hospital, and
| | - Hongmei Li
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Xia Li
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Yonghao Li
- Zhongshan Ophthalmology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haifeng Zhang
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | | | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, and
| | - Wang Min
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA.,Center for Translational Medicine, The First Affiliated Hospital, and
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Karatug Kacar A, Bolkent S. Necrotic cell death occur via JNK pathway with the activity of transcription factor c-Jun by 4-MC in INS-1 cell line. J Cell Biochem 2017; 119:2048-2060. [PMID: 28833446 DOI: 10.1002/jcb.26367] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/17/2017] [Indexed: 11/09/2022]
Abstract
In this study, it was aimed to determine the doses of 4-methylcatechol causing cell death in rat insulinoma β-cells (INS-1), to find out the type of cellular death at these doses, and to investigate the molecular mechanism of cellular death occurring. More necrotic cells were observed than apoptosis with the administration of 350, 400, and 450 μM 4-methylcatechol. Lactate dehydrogenase levels, reactive oxygen species, mitochondrial potential loss, ATP, and GTP losses increased at these doses. The JNK and ERK cellular pathway were screened. We observed an increase in p-RAF1 activity, the active JNK amount, the total c-Jun amount, while a decrease in p-RAF1 expression, the total JNK amount, JNK expression, ATF2 expression, active ERK, and its expression and Elk1 expression. It was concluded that cells perform necrotic death by the following options: i) phosphorylated RAF1 activates the JNK pathway with the activity of transcription factor c-Jun; ii) Hsp 70 and Hsp 90 do not show a change inside the cell, rendering the JNK pathway active.
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Affiliation(s)
- Ayse Karatug Kacar
- Istanbul University, Faculty of Science, Department of Biology, Istanbul University, Istanbul, Turkey
| | - Sehnaz Bolkent
- Istanbul University, Faculty of Science, Department of Biology, Istanbul University, Istanbul, Turkey
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Nishida T, Hattori K, Watanabe K. The regulatory and signaling mechanisms of the ASK family. Adv Biol Regul 2017; 66:2-22. [PMID: 28669716 DOI: 10.1016/j.jbior.2017.05.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 05/17/2017] [Accepted: 05/17/2017] [Indexed: 01/05/2023]
Abstract
Apoptosis signal-regulating kinase 1 (ASK1) was identified as a MAP3K that activates the JNK and p38 pathways, and subsequent studies have reported ASK2 and ASK3 as members of the ASK family. The ASK family is activated by various intrinsic and extrinsic stresses, including oxidative stress, ER stress and osmotic stress. Numerous lines of evidence have revealed that members of the ASK family are critical for signal transduction systems to control a wide range of stress responses such as cell death, differentiation and cytokine induction. In this review, we focus on the precise signaling mechanisms of the ASK family in response to diverse stressors.
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Affiliation(s)
- Takuto Nishida
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan
| | - Kazuki Hattori
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan.
| | - Kengo Watanabe
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan.
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Reactive Oxygen Species Evoked by Potassium Deprivation and Staurosporine Inactivate Akt and Induce the Expression of TXNIP in Cerebellar Granule Neurons. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8930406. [PMID: 28367274 PMCID: PMC5358461 DOI: 10.1155/2017/8930406] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 01/08/2017] [Accepted: 01/22/2017] [Indexed: 12/19/2022]
Abstract
The reactive oxygen species (ROS) play a critical role in neuronal apoptosis; however, the mechanisms are not well understood. It has been shown that thioredoxin-interacting protein (TXNIP) overexpression renders cells more susceptible to oxidative stress and promotes apoptosis and that the activation of PI3K/Akt pathway leads to a downregulation of TXNIP. Here, we evaluated the role of ROS in the regulation of Akt activity and the subsequent regulation of the TXNIP expression in a model of apoptotic death of cerebellar granule neurons (CGN). We observed that two apoptotic conditions that generate ROS at short times led to an increase in the expression of TXNIP in a time-dependent manner; antioxidants significantly reduced this expression. Also, H2O2 caused an increase in TXNIP expression. Moreover, apoptotic conditions induced inactivation of Akt in a time-dependent manner similar to TXNIP expression and H2O2 treatment led to Akt inactivation. Besides, the pharmacological inhibition of Akt increases TXNIP expression and induces CGN cell death. Together, these results suggest that ROS promote neuronal apoptosis through the Akt-TXNIP signaling pathway, supporting the idea that the PI3K/Akt pathway regulates the TXNIP expression. This study highlights the potential importance of this mechanism in neuronal death.
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40
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Tang H, Xue G. Major Physiological Signaling Pathways in the Regulation of Cell Proliferation and Survival. Handb Exp Pharmacol 2017; 249:13-30. [PMID: 28233182 DOI: 10.1007/164_2017_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Multiple signaling pathways regulate cell proliferation and survival and are therefore important for maintaining homeostasis of development. The balance between cell growth and death is achieved through orchestrated signal transduction pathways mediated by complex functional interactions between signaling axes, among which, PI3K/Akt and Ras/MAPK as well as JAK/STAT play a dominant role in promoting cell proliferation, differentiation, and survival. In clinical cancer therapies, drug resistance is the major challenge that occurs in almost all targeted therapeutic strategies. Recent advances in research have suggested that the intrinsic pro-survival signaling crosstalk is the driving force in acquired resistance to a targeted therapy, which may be abolished by interfering with the cross-reacting network.
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Affiliation(s)
- Huifang Tang
- Department of Pharmacology, Zhejiang University, School of Basic Medical Sciences, Hangzhou, 310058, China.
| | - Gongda Xue
- Department of Biomedicine, University Hospital Basel, Basel, 4031, Switzerland
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41
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Graner AN, Hellwinkel JE, Lencioni AM, Madsen HJ, Harland TA, Marchando P, Nguyen GJ, Wang M, Russell LM, Bemis LT, Anchordoquy TJ, Graner MW. HSP90 inhibitors in the context of heat shock and the unfolded protein response: effects on a primary canine pulmonary adenocarcinoma cell line. Int J Hyperthermia 2016; 33:303-317. [PMID: 27829290 DOI: 10.1080/02656736.2016.1256503] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Agents targeting HSP90 and GRP94 are seldom tested in stressed contexts such as heat shock (HS) or the unfolded protein response (UPR). Tumor stress often activates HSPs and the UPR as pro-survival mechanisms. This begs the question of stress effects on chemotherapeutic efficacy, particularly with drugs targeting chaperones such as HSP90 or GRP94. We tested the utility of several HSP90 inhibitors, including PU-H71 (targeting GRP94), on a primary canine lung cancer line under HS/UPR stress compared to control conditions. METHODS We cultured canine bronchoalveolar adenocarcinoma cells that showed high endogenous HSP90 and GRP94 expression; these levels substantially increased upon HS or UPR induction. We treated cells with HSP90 inhibitors 17-DMAG, 17-AAG or PU-H71 under standard conditions, HS or UPR. Cell viability/survival was assayed. Antibody arrays measured intracellular signalling and apoptosis profiles. RESULTS HS and UPR had varying effects on cells treated with different HSP90 inhibitors; in particular, HS and UPR promoted resistance to inhibitors in short-term assays, but combinations of UPR stress and PU-H571 showed potent cytotoxic activity in longer-term assays. Array data indicated altered signalling pathways, with apoptotic and pro-survival implications. UPR induction + dual targeting of HSP90 and GRP94 swayed the balance toward apoptosis. CONCLUSION Cellular stresses, endemic to tumors, or interventionally inducible, can deflect or enhance chemo-efficacy, particularly with chaperone-targeting drugs. Stress is likely not held accountable when testing new pharmacologics or assessing currently-used drugs. A better understanding of stress impacts on drug activities should be critical in improving therapeutic targeting and in discerning mechanisms of drug resistance.
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Affiliation(s)
- Arin N Graner
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA
| | - Justin E Hellwinkel
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA.,b School of Medicine , University of Colorado School of Medicine , Aurora , CO , USA
| | - Alex M Lencioni
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA.,c University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Helen J Madsen
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA.,b School of Medicine , University of Colorado School of Medicine , Aurora , CO , USA
| | - Tessa A Harland
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA.,b School of Medicine , University of Colorado School of Medicine , Aurora , CO , USA
| | - Paul Marchando
- d Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , CO , USA
| | - Ger J Nguyen
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA
| | - Mary Wang
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA
| | - Laura M Russell
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA
| | - Lynne T Bemis
- e Department of Biomedical Sciences , University of Minnesota , Duluth , MN , USA
| | - Thomas J Anchordoquy
- f Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Denver , Aurora , CO , USA
| | - Michael W Graner
- a Department of Neurosurgery , University of Colorado Denver , Aurora , CO , USA
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Betanzos CM, Federspiel JD, Palubinsky AM, McLaughlin B, Liebler DC. Dynamic Phosphorylation of Apoptosis Signal Regulating Kinase 1 (ASK1) in Response to Oxidative and Electrophilic Stress. Chem Res Toxicol 2016; 29:2175-2183. [PMID: 27989136 PMCID: PMC5937698 DOI: 10.1021/acs.chemrestox.6b00339] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Apoptosis signal-regulating kinase 1 (ASK1) is a critical cellular stress sensor that senses diverse reactive chemotypes and integrates these chemical signals into a single biological pathway response. It is unknown whether ASK1 senses all stressors in the same way or if unique stress-specific mechanisms detect distinct chemotypes. In order to answer this question, we treated ASK1-expressing cells with two distinct stress activators, H2O2 and 4-hydroxy-2-nonenal (HNE), and monitored the phosphorylation state of ASK1. Phosphorylation is an important regulator for the activity of ASK1, and we hypothesized that these two chemically distinct molecules may produce differences in the phosphorylation state of ASK1. Shotgun mass spectrometry and manual validation identified 12 distinct ASK1 phosphosites. Targeted parallel reaction monitoring assays were used to track the phosphorylation dynamics of each confirmed site in response to treatment. Eleven phosphosites exhibited dynamic response to one or both treatments. Six of these sites were identified in both H2O2- and HNE-treated cells, and four of these exhibited a consistent response between the two molecules. The results confirm that different chemotypes produce distinct phosphorylation patterns in concert with activation of a common MAPK pathway.
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Affiliation(s)
- Carlos Morales Betanzos
- Department of Biochemistry, Vanderbilt University School of Medicine, Vanderbilt University, Tennessee 37232
| | - Joel D. Federspiel
- Department of Biochemistry, Vanderbilt University School of Medicine, Vanderbilt University, Tennessee 37232
| | - Amy M. Palubinsky
- Neuroscience Graduate Program, Vanderbilt Brain Institute, Vanderbilt University, Tennessee 37232
| | - BethAnn McLaughlin
- Department of Neurology, Vanderbilt University, Nashville, Tennessee 37232
| | - Daniel C. Liebler
- Department of Biochemistry, Vanderbilt University School of Medicine, Vanderbilt University, Tennessee 37232
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Subramaniam DS, Warner EA, Giaccone G. Ganetespib for small cell lung cancer. Expert Opin Investig Drugs 2016; 26:103-108. [DOI: 10.1080/13543784.2017.1268599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Eiran A. Warner
- Division of Hematology-Oncology, Georgetown University, Washington, DC, USA
| | - Giuseppe Giaccone
- Division of Hematology-Oncology, Georgetown University, Washington, DC, USA
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Faridi U, Dhawan SS, Pal S, Gupta S, Shukla AK, Darokar MP, Sharma A, Shasany AK. Repurposing L-Menthol for Systems Medicine and Cancer Therapeutics? L-Menthol Induces Apoptosis through Caspase 10 and by Suppressing HSP90. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2016; 20:53-64. [PMID: 26760959 DOI: 10.1089/omi.2015.0118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The objective of the present study was to repurpose L-menthol, which is frequently used in oral health and topical formulations, for cancer therapeutics. In this article, we argue that monoterpenes such as L-menthol might offer veritable potentials in systems medicine, for example, as cheaper anti-cancer compounds. Other monoterpenes such as limonene, perillyl alcohol, and geraniol have been shown to induce apoptosis in various cancer cell lines, but their mechanisms of action are yet to be completely elucidated. Earlier, we showed that L-menthol modulates tubulin polymerization and apoptosis to inhibit cancer cell proliferation. In the present report, we used an apoptosis-related gene microarray in conjunction with proteomics analyses, as well as in silico interpretations, to study gene expression modulation in human adenocarcinoma Caco-2 cell line in response to L-menthol treatment. The microarray analysis identified caspase 10 as the important initiator caspase, instead of caspase 8. The proteomics analyses showed downregulation of HSP90 protein (also corroborated by its low transcript abundance), which in turn indicated inhibition of AKT-mediated survival pathway, release of pro-apoptotic factor BAD from BAD and BCLxL complex, besides regulation of other factors related to apoptosis. Based on the combined microarray, proteomics, and in silico data, a signaling pathway for L-menthol-induced apoptosis is being presented for the first time here. These data and literature analysis have significant implications for "repurposing" L-menthol beyond oral medicine, and in understanding the mode of action of plant-derived monoterpenes towards development of cheaper anticancer drugs in future.
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Affiliation(s)
- Uzma Faridi
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Sunita S Dhawan
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Shaifali Pal
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Sanchita Gupta
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Ashutosh K Shukla
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Mahendra P Darokar
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Ashok Sharma
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
| | - Ajit K Shasany
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow, U.P., India
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45
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Abstract
Many food-derived phytochemical compounds and their derivatives represent a cornucopia of new anticancer compounds. Despite extensive study of luteolin, the literature has no information on the exact mechanisms or molecular targets through which it deters cancer progression. This review discusses existing data on luteolin's anticancer activities and then offers possible explanations for and molecular targets of its cancer-preventive action. Luteolin prevents tumor development largely by inactivating several signals and transcription pathways essential for cancer cells. This review also offers insights into the molecular mechanisms and targets through which luteolin either prevents cancer or mediates cancer cell death.
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Beauvais DM, Jung O, Yang Y, Sanderson RD, Rapraeger AC. Syndecan-1 (CD138) Suppresses Apoptosis in Multiple Myeloma by Activating IGF1 Receptor: Prevention by SynstatinIGF1R Inhibits Tumor Growth. Cancer Res 2016; 76:4981-93. [PMID: 27364558 DOI: 10.1158/0008-5472.can-16-0232] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 06/09/2016] [Indexed: 01/20/2023]
Abstract
Syndecan-1 (Sdc1/CD138) expression is linked to disease severity in multiple myeloma, although the causal basis for this link remains unclear. Here we report that capture of the IGF1 receptor (IGF1R) by Sdc1 suppresses ASK1-dependent apoptosis in multiple myeloma cells. Sdc1 binds two different fractions of IGF1R, one that is constitutively active and a second that is activated by IGF1 ligand. Notably, IGF1R kinase activity in both fractions is blocked by synstatinIGF1R (SSTNIGF1R), a peptide that inhibits IGF1R capture by Sdc1, as well as by a truncated peptide (SSTNIGF1R-T) that appears to be specific for multiple myeloma cells. Mechanistically, we show that ASK1 is bound to active IGF1R and inhibited by Tyr and Ser83/Ser966 phosphorylation. When IGF1R engagement with Sdc1 is blocked by SSTNIGF1R, ASK1 becomes activated, and initiates JNK- and caspase-3-mediated apoptosis. In pharmacologic tests, we find SSTNIGF1R is highly stable in human plasma and displays a half-life of 27 hours in mice, wherein it significantly reduces both the size and neovascularization of CAG myeloma tumor xenografts. Taken together, our results offer a preclinical proof of concept and mechanistic rationale for the exploration of SSTNIGF1R as an experimental therapeutic to dually attack multiple myeloma tumor cell survival and tumor angiogenesis. Cancer Res; 76(17); 4981-93. ©2016 AACR.
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Affiliation(s)
- DeannaLee M Beauvais
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin
| | - Oisun Jung
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin. The Graduate Program in Molecular and Cellular Pharmacology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin
| | - Yang Yang
- Department of Pathology and the University of Alabama at Birmingham Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Ralph D Sanderson
- Department of Pathology and the University of Alabama at Birmingham Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Alan C Rapraeger
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin. The Graduate Program in Molecular and Cellular Pharmacology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin. The University of Wisconsin Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.
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47
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Liu Z, Zhong T, Zheng D, Cepinskas I, Peng T, Su L. Heat stress pretreatment decreases lipopolysaccharide-induced apoptosis via the p38 signaling pathway in human umbilical vein endothelial cells. Mol Med Rep 2016; 14:1007-13. [PMID: 27222013 DOI: 10.3892/mmr.2016.5303] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 03/07/2016] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to investigate vascular endothelial apoptosis, and the regulatory molecules involved in the condition of heatstroke caused by direct hyperthermia due to high core temperature and gut‑derived endotoxemia. Human umbilical vascular endothelial cells (HUVECs) were isolated and treated with heat stress (43˚C for 1 h), lipopolysaccharide (LPS; 1 µg/ml), or a combination of heat stress pretreatment followed by LPS. Caspase‑3 activity, DNA fragmentation, and cell viability, determined using a 3‑(4, 5‑dimethyl thiazol‑2‑yl)‑2,5‑diphenyl tetrazolium bromide assay, were measured to examine cellular apoptosis. Changes in the expression levels of heat shock protein (HSP) 27, HSP90 and B‑cell lymphoma 2 (Bcl‑2), and the phosphorylation of p38 were detected using Western blot assays. The specific inhibitor of p38, SB203580, was also used. LPS induced endothelial apoptosis, as indicated by increased caspase‑3 activity, a high level of DNA fragmentation and low cell viability. LPS also increased p38 phosphorylation and decreased the expression levels of HSP27, HSP90 and Bcl‑2. Heat stress pretreatment inhibited LPS‑induced cellular apoptosis, increased the phosphorylation of p38, and increased the expression levels of HSP27, HSP90 and Bcl‑2. Pretreatment with SB203580 had effects similar to those of heat stress in the amelioration of LPS‑induced effects. These findings demonstrated that heat stress pretreatment decreased LPS‑induced Bcl‑2‑associated apoptosis in HUVECs by attenuating p38 activation, thereby increasing the expression levels of HSP27 and HSP90.
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Affiliation(s)
- Zhifeng Liu
- Department of Intensive Care Unit, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Tianyu Zhong
- Department of Intensive Care Unit, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Dong Zheng
- Critical Illness Research Centre, Lawson Health Research Institute, University of Western Ontario, London, ON N6A 4G5, Canada
| | - Inga Cepinskas
- Critical Illness Research Centre, Lawson Health Research Institute, University of Western Ontario, London, ON N6A 4G5, Canada
| | - Tianqing Peng
- Critical Illness Research Centre, Lawson Health Research Institute, University of Western Ontario, London, ON N6A 4G5, Canada
| | - Lei Su
- Department of Intensive Care Unit, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
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48
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Abeyrathna P, Su Y. The critical role of Akt in cardiovascular function. Vascul Pharmacol 2015; 74:38-48. [PMID: 26025205 PMCID: PMC4659756 DOI: 10.1016/j.vph.2015.05.008] [Citation(s) in RCA: 288] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/07/2015] [Accepted: 05/16/2015] [Indexed: 12/30/2022]
Abstract
Akt kinase, a member of AGC kinases, is important in many cellular functions including proliferation, migration, cell growth and metabolism. There are three known Akt isoforms which play critical and diverse roles in the cardiovascular system. Akt activity is regulated by its upstream regulatory pathways at transcriptional and post-translational levels. Beta-catenin/Tcf-4, GLI1 and Stat-3 are some of few known transcriptional regulators of AKT gene. Threonine 308 and serine 473 are the two critical phosphorylation sites of Akt1. Translocation of Akt to the cell membrane facilitates PDK1 phosphorylation of the threonine site. The serine site is phosphorylated by mTORC2. Ack1, Src, PTK6, TBK1, IKBKE and IKKε are some of the non-canonical pathways which affect the Akt activity. Protein-protein interactions of Akt to actin and Hsp90 increase the Akt activity while Akt binding to other proteins such as CTMP and TRB3 reduces the Akt activity. The action of Akt on its downstream targets determines its function in cardiovascular processes such as cell survival, growth, proliferation, angiogenesis, vasorelaxation, and cell metabolism. Akt promotes cell survival via caspase-9, YAP, Bcl-2, and Bcl-x activities. Inhibition of FoxO proteins by Akt also increases cell survival by transcriptional mechanisms. Akt stimulates cell growth and proliferation through mTORC1. Akt also increases VEGF secretion and mediates eNOS phosphorylation, vasorelaxation and angiogenesis. Akt can increase cellular metabolism through its downstream targets GSK3 and GLUT4. The alterations of Akt signaling play an important role in many cardiovascular pathological processes such as atherosclerosis, cardiac hypertrophy, and vascular remodeling. Several Akt inhibitors have been developed and tested as anti-tumor agents. They could be potential novel therapeutics for the cardiovascular diseases.
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Affiliation(s)
- Prasanna Abeyrathna
- Department of Pharmacology & Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Yunchao Su
- Department of Pharmacology & Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA.
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49
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Papanagnou P, Baltopoulos P, Tsironi M. Marketed nonsteroidal anti-inflammatory agents, antihypertensives, and human immunodeficiency virus protease inhibitors: as-yet-unused weapons of the oncologists' arsenal. Ther Clin Risk Manag 2015; 11:807-19. [PMID: 26056460 PMCID: PMC4445694 DOI: 10.2147/tcrm.s82049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Experimental data indicate that several pharmacological agents that have long been used for the management of various diseases unrelated to cancer exhibit profound in vitro and in vivo anticancer activity. This is of major clinical importance, since it would possibly aid in reassessing the therapeutic use of currently used agents for which clinicians already have experience. Further, this would obviate the time-consuming process required for the development and the approval of novel antineoplastic drugs. Herein, both pre-clinical and clinical data concerning the antineoplastic function of distinct commercially available pharmacological agents that are not currently used in the field of oncology, ie, nonsteroidal anti-inflammatory drugs, antihypertensive agents, and anti-human immunodeficiency virus agents inhibiting viral protease, are reviewed. The aim is to provide integrated information regarding not only the molecular basis of the antitumor function of these agents but also the applicability of the reevaluation of their therapeutic range in the clinical setting.
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Affiliation(s)
- Panagiota Papanagnou
- Department of Nursing, Faculty of Human Movement and Quality of Life Sciences, University of Peloponnese, Sparta, Greece
| | - Panagiotis Baltopoulos
- Department of Sports Medicine and Biology of Physical Activity, Faculty of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Tsironi
- Department of Nursing, Faculty of Human Movement and Quality of Life Sciences, University of Peloponnese, Sparta, Greece
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50
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Jiang WL, Zhang YF, Xia QQ, Zhu J, Yu X, Fan T, Wang F. MicroRNA-19a regulates lipopolysaccharide-induced endothelial cell apoptosis through modulation of apoptosis signal-regulating kinase 1 expression. BMC Mol Biol 2015; 16:11. [PMID: 25982447 PMCID: PMC4446110 DOI: 10.1186/s12867-015-0034-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 02/19/2015] [Indexed: 01/07/2023] Open
Abstract
Background MicroRNAs, small non-encoding RNAs that post-transcriptionally modulate expression of their target genes, have been implicated as critical regulatory molecules in endothelial cells. Results In the present study, we found that overexpression of miR-19a protects endothelial cells from lipopolysaccharide (LPS)-induced apoptosis through the apoptosis signal-regulating kinase 1 (ASK1)/p38 pathway. Quantitative real-time PCR demonstrated that the expression of miR-19a in endothelial cell was markedly down-regulated by LPS stimulation. Furthermore, LPS-induced apoptosis was significantly inhibited by over-expression of miR-19a. Finally, both a luciferase reporter assay and western blot analysis showed that ASK1 is a direct target of miR-19a. Conclusions MiR-19a regulates ASK1 expression by targeting specific binding sites in the 3’ untranslated region of ASK1 mRNA. Overexpression of miR-19a is an effective method to protect against LPS-induced apoptosis of endothelial cells. Electronic supplementary material The online version of this article (doi:10.1186/s12867-015-0034-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wei-Long Jiang
- Department of Respiration, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Yu-Feng Zhang
- Department of Respiration, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Qing-Qing Xia
- Department of Respiration, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Jian Zhu
- Department of Neurology, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Xin Yu
- Department of Internal Medicine, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Tao Fan
- Department of Neurology, Jiangyin Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Jiangyin City, Jiangsu Province, 214400, China.
| | - Feng Wang
- Department of Neurology, Shanghai First People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China.
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