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LIU T, QIN W, YANG H. [Recent advances in protein precipitation-based methods for drug-target screening]. Se Pu 2024; 42:613-622. [PMID: 38966970 PMCID: PMC11224935 DOI: 10.3724/sp.j.1123.2023.11019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Indexed: 07/06/2024] Open
Abstract
Drug targets are biological macromolecules that bind drug molecules in vivo. Therefore, the system-wide identification of drug targets plays a vital role in fully understanding the mechanism of drug action, efficacy, and side effects. The unbiased screening of drug targets may accelerate the process of drug discovery and candidate screening. Mass spectrometry is a key tool for large-scale protein identification and accurate quantification owing to its high acquisition speed, resolution, and sensitivity. Mass spectrometry-based proteomics has been widely used for drug-target screening. It can systematically identify the protein-target landscape of a drug and elucidate drug-protein interactions. Commonly used drug-target characterization methods, such as labeling-based affinity enrichment, require the chemical derivatization of drug molecules, which is not only time-consuming but may also affect the affinity of the drug towards its targets. Furthermore, the spatial effects of the derivatization groups may block interactions between the drug and its targets. Considering the disadvantages of affinity-enrichment methods, strategies that do not require chemical derivatization have received widespread attention. Proteins may undergo denaturation, unfolding, and precipitation under different conditions such as high temperatures, extreme pH, denaturants, and mechanical stress. Binding to small-molecule drugs may alter the folding balance of target proteins. The conformational stability of target proteins can be stabilized by binding with drugs, and protein-drug complexes are more resistant than free proteins to the precipitation induced by different conditions. Based on this mechanism, various large-scale drug-target identification methods using protein precipitation have been developed by combining proteomics and mass spectrometry analysis, including thermal proteome profiling and solvent-, mechanical stress-, and pH-induced protein precipitation. These methods have been successfully applied to the characterization of small-molecule drug targets. In this review, we describe the protein precipitation-based methods used for the high-throughput discovery of drug targets and elucidation of the interactions between drugs and proteins in the past decade. We also summarize the characteristics of each method and discuss their application potential in drug-efficacy evaluation and drug discovery.
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Cappabianca L, Ruggieri M, Sebastiano M, Sbaffone M, Martelli I, Ruggeri P, Di Padova M, Farina AR, Mackay AR. Molecular Characterization and Inhibition of a Novel Stress-Induced Mitochondrial Protecting Role for Misfolded TrkAIII in Human SH-SY5Y Neuroblastoma Cells. Int J Mol Sci 2024; 25:5475. [PMID: 38791513 PMCID: PMC11122047 DOI: 10.3390/ijms25105475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Pediatric neuroblastomas (NBs) are heterogeneous, aggressive, therapy-resistant embryonal tumors that originate from cells of neural crest origin committed to the sympathoadrenal progenitor cell lineage. Stress- and drug-resistance mechanisms drive post-therapeutic relapse and metastatic progression, the characterization and inhibition of which are major goals in improving therapeutic responses. Stress- and drug-resistance mechanisms in NBs include alternative TrkAIII splicing of the neurotrophin receptor tropomyosin-related kinase A (NTRK1/TrkA), which correlates with post-therapeutic relapse and advanced-stage metastatic disease. The TrkAIII receptor variant exerts oncogenic activity in NB models by mechanisms that include stress-induced mitochondrial importation and activation. In this study, we characterize novel targetable and non-targetable participants in this pro-survival mechanism in TrkAIII-expressing SH-SY5Y NB cells, using dithiothreitol (DTT) as an activator and a variety of inhibitors by regular and immunoprecipitation Western blotting of purified mitochondria and IncuCyte cytotoxicity assays. We report that stress-induced TrkAIII misfolding initiates this mechanism, resulting in Grp78, Ca2+-calmodulin, adenosine ribosylating factor (Arf) and Hsp90-regulated mitochondrial importation. TrkAIII imported into inner mitochondrial membranes is cleaved by Omi/high temperature requirement protein A2 (HtrA2) then activated by a mechanism dependent upon calmodulin kinase II (CaMKII), alpha serine/threonine kinase (Akt), mitochondrial Ca2+ uniporter and reactive oxygen species (ROS), involving inhibitory mitochondrial protein tyrosine phosphatase (PTPase) oxidation, resulting in phosphoinositide 3 kinase (PI3K) activation of mitochondrial Akt, which enhances stress resistance. This novel pro-survival function for misfolded TrkAIII mitigates the cytotoxicity of mitochondrial Ca2+ homeostasis disrupted during integrated stress responses, and is prevented by clinically approved Trk and Akt inhibitors and also by inhibitors of 78kDa glucose regulated protein (Grp78), heat shock protein 90 (Hsp90), Ca2+-calmodulin and PI3K. This identifies Grp78, Ca2+-calmodulin, Hsp90, PI3K and Akt as novel targetable participants in this mechanism, in addition to TrkAIII, the inhibition of which has the potential to enhance the stress-induced elimination of TrkAIII-expressing NB cells, with the potential to improve therapeutic outcomes in NBs that exhibit TrkAIII expression and activation.
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Kalyaanamoorthy S, Opare SK, Xu X, Ganesan A, Rao PPN. Post-Translational Modifications in Tau and Their Roles in Alzheimer's Pathology. Curr Alzheimer Res 2024; 21:24-49. [PMID: 38623984 DOI: 10.2174/0115672050301407240408033046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/17/2024]
Abstract
Microtubule-Associated Protein Tau (also known as tau) has been shown to accumulate into paired helical filaments and neurofibrillary tangles, which are known hallmarks of Alzheimer's disease (AD) pathology. Decades of research have shown that tau protein undergoes extensive post-translational modifications (PTMs), which can alter the protein's structure, function, and dynamics and impact the various properties such as solubility, aggregation, localization, and homeostasis. There is a vast amount of information describing the impact and role of different PTMs in AD pathology and neuroprotection. However, the complex interplay between these PTMs remains elusive. Therefore, in this review, we aim to comprehend the key post-translational modifications occurring in tau and summarize potential connections to clarify their impact on the physiology and pathophysiology of tau. Further, we describe how different computational modeling methods have helped in understanding the impact of PTMs on the structure and functions of the tau protein. Finally, we highlight the tau PTM-related therapeutics strategies that are explored for the development of AD therapy.
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Affiliation(s)
| | - Stanley Kojo Opare
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
| | - Xiaoxiao Xu
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
| | - Aravindhan Ganesan
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
| | - Praveen P N Rao
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
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Weeraphan T, Supong K, Sripreechasak P, Jutakanoke R, Kowinthanaphat S, Tanasupawat S, Pittayakhajonwut P, Phongsopitanun W. Streptomyces rugosispiralis sp. nov., a Novel Actinobacterium Isolated from Peat Swamp Forest Soil That Produces Ansamycin Derivatives and Nocardamines. Antibiotics (Basel) 2023; 12:1467. [PMID: 37760763 PMCID: PMC10525797 DOI: 10.3390/antibiotics12091467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/05/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023] Open
Abstract
Actinomycetes, especially the genus Streptomyces, are one of the most promising sources of bioactive natural products. In this study, a novel Streptomyces strain, RCU-064T, was isolated from a soil sample collected from a peat swamp forest in Thailand. Strain RCU-064T showed the highest 16S rRNA gene sequence similarity (99.06%) with Streptomyces malaysiensis NBRC 16446T. Based on a polyphasic approach, strain RCU-064T represents a novel species of the genus Streptomyces, for which the name Streptomyces rugosispiralis sp. nov. is proposed. The chemical isolation of the crude ethyl acetate extracts of the strain led to the isolation of six compounds: (1) geldanamycin, (2) 17-O-demethylgeldanamycin, (3) reblastatin, (4) 17-demethoxyreblastatin, (5) nocardamine, and (6) dehydroxynocardamine. These compounds were evaluated for their biological activities. All compounds showed no antimicrobial activity against tested microorganisms used in this study. Compounds (1)-(4) displayed cytotoxic activity against the NCI-H187 cell line, with IC50 values ranging from 0.045-4.250 µg/mL. Cytotoxicity against the MCF-7 cell line was found in compounds (1) and (3) with IC50 values of 3.51 and 1.27 µg/mL, respectively. Compounds (5) and (6) exhibited cytotoxicity only against Vero cells (IC50 of 16.57 µg/mL) and NCI-H187 cells (IC50 of 13.96 µg/mL), respectively. These results indicate that peat swamp forest soil remains a promising reservoir of novel actinomycetes capable of producing bioactive natural products.
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Affiliation(s)
- Trinset Weeraphan
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (T.W.); (S.K.); (S.T.)
| | - Khomsan Supong
- Department of Applied Science and Biotechnology, Faculty of Agro-Industrial Technology, Rajamangala University of Technology Tawan-ok, Chantaburi 22210, Thailand
| | - Paranee Sripreechasak
- Office of Educational Affairs, Faculty of Science, Burapha University, Chonburi 20131, Thailand;
| | - Rumpa Jutakanoke
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand;
| | - Supalerk Kowinthanaphat
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (T.W.); (S.K.); (S.T.)
| | - Somboon Tanasupawat
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (T.W.); (S.K.); (S.T.)
| | - Pattama Pittayakhajonwut
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathum Thani 12120, Thailand;
| | - Wongsakorn Phongsopitanun
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (T.W.); (S.K.); (S.T.)
- Natural Products and Nanoparticles Research Units (NP2), Chulalongkorn University, Bangkok 10330, Thailand
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Shreya S, Grosset CF, Jain BP. Unfolded Protein Response Signaling in Liver Disorders: A 2023 Updated Review. Int J Mol Sci 2023; 24:14066. [PMID: 37762367 PMCID: PMC10531763 DOI: 10.3390/ijms241814066] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Endoplasmic reticulum (ER) is the site for synthesis and folding of secreted and transmembrane proteins. Disturbance in the functioning of ER leads to the accumulation of unfolded and misfolded proteins, which finally activate the unfolded protein response (UPR) signaling. The three branches of UPR-IRE1 (Inositol requiring enzyme 1), PERK (Protein kinase RNA-activated (PKR)-like ER kinase), and ATF6 (Activating transcription factor 6)-modulate the gene expression pattern through increased expression of chaperones and restore ER homeostasis by enhancing ER protein folding capacity. The liver is a central organ which performs a variety of functions which help in maintaining the overall well-being of our body. The liver plays many roles in cellular physiology, blood homeostasis, and detoxification, and is the main site at which protein synthesis occurs. Disturbance in ER homeostasis is triggered by calcium level imbalance, change in redox status, viral infection, and so on. ER dysfunction and subsequent UPR signaling participate in various hepatic disorders like metabolic (dysfunction) associated fatty liver disease, liver cancer, viral hepatitis, and cholestasis. The exact role of ER stress and UPR signaling in various liver diseases is not fully understood and needs further investigation. Targeting UPR signaling with drugs is the subject of intensive research for therapeutic use in liver diseases. The present review summarizes the role of UPR signaling in liver disorders and describes why UPR regulators are promising therapeutic targets.
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Affiliation(s)
- Smriti Shreya
- Gene Expression and Signaling Lab, Department of Zoology, Mahatma Gandhi Central University, Motihari 845401, Bihar, India;
| | - Christophe F. Grosset
- MIRCADE Team, U1312, Bordeaux Institute in Oncology, BRIC, Université de Bordeaux, 146 Rue Léo Saignat, F-33000 Bordeaux, France
| | - Buddhi Prakash Jain
- Gene Expression and Signaling Lab, Department of Zoology, Mahatma Gandhi Central University, Motihari 845401, Bihar, India;
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Watanabe Y, Taguchi K, Tanaka M. Roles of Stress Response in Autophagy Processes and Aging-Related Diseases. Int J Mol Sci 2023; 24:13804. [PMID: 37762105 PMCID: PMC10531041 DOI: 10.3390/ijms241813804] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The heat shock factor 1 (HSF1)-mediated stress response pathway and autophagy processes play important roles in the maintenance of proteostasis. Autophagy processes are subdivided into three subtypes: macroautophagy, chaperone-mediated autophagy (CMA), and microautophagy. Recently, molecular chaperones and co-factors were shown to be involved in the selective degradation of substrates by these three autophagy processes. This evidence suggests that autophagy processes are regulated in a coordinated manner by the HSF1-mediated stress response pathway. Recently, various studies have demonstrated that proteostasis pathways including HSF1 and autophagy are implicated in longevity. Furthermore, they serve as therapeutic targets for aging-related diseases such as cancer and neurodegenerative diseases. In the future, these studies will underpin the development of therapies against various diseases.
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Affiliation(s)
- Yoshihisa Watanabe
- Department of Basic Geriatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamikyo-ku, Kyoto 602-8566, Japan
| | - Katsutoshi Taguchi
- Department of Anatomy and Neurobiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 601-0841, Japan; (K.T.); (M.T.)
| | - Masaki Tanaka
- Department of Anatomy and Neurobiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 601-0841, Japan; (K.T.); (M.T.)
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Toh H, Smolentsev A, Sadjadi R, Clegg D, Yan J, Stewart R, Thomson JA, Jiang P. Transcriptomic clock predicts vascular changes of prodromal diabetic retinopathy. Sci Rep 2023; 13:12968. [PMID: 37563287 PMCID: PMC10415264 DOI: 10.1038/s41598-023-40328-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023] Open
Abstract
Diabetic retinopathy is a common complication of long-term diabetes and that could lead to vision loss. Unfortunately, early diabetic retinopathy remains poorly understood. There is no effective way to prevent or treat early diabetic retinopathy until patients develop later stages of diabetic retinopathy. Elevated acellular capillary density is considered a reliable quantitative trait present in the early development of retinopathy. Hence, in this study, we interrogated whole retinal vascular transcriptomic changes via a Nile rat model to better understand the early pathogenesis of diabetic retinopathy. We uncovered the complexity of associations between acellular capillary density and the joint factors of blood glucose, diet, and sex, which was modeled through a Bayesian network. Using segmented regressions, we have identified different gene expression patterns and enriched Gene Ontology (GO) terms associated with acellular capillary density increasing. We developed a random forest regression model based on expression patterns of 14 genes to predict the acellular capillary density. Since acellular capillary density is a reliable quantitative trait in early diabetic retinopathy, and thus our model can be used as a transcriptomic clock to measure the severity of the progression of early retinopathy. We also identified NVP-TAE684, geldanamycin, and NVP-AUY922 as the top three potential drugs which can potentially attenuate the early DR. Although we need more in vivo studies in the future to support our re-purposed drugs, we have provided a data-driven approach to drug discovery.
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Affiliation(s)
- Huishi Toh
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Alexander Smolentsev
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Ryan Sadjadi
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Dennis Clegg
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA, USA
- Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Jingqi Yan
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, OH, 44115, USA
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH, 44115, USA
| | - Ron Stewart
- Morgridge Institute For Research, Madison, WI, 53706, USA
| | - James A Thomson
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA, USA
- Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA, USA
- Morgridge Institute For Research, Madison, WI, 53706, USA
| | - Peng Jiang
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, OH, 44115, USA.
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH, 44115, USA.
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA.
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8
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Zhao T, Zhu G, Dubey HV, Flaherty P. Identification of significant gene expression changes in multiple perturbation experiments using knockoffs. Brief Bioinform 2023; 24:bbad084. [PMID: 36892174 PMCID: PMC10025447 DOI: 10.1093/bib/bbad084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/20/2023] [Accepted: 02/13/2023] [Indexed: 03/10/2023] Open
Abstract
Large-scale multiple perturbation experiments have the potential to reveal a more detailed understanding of the molecular pathways that respond to genetic and environmental changes. A key question in these studies is which gene expression changes are important for the response to the perturbation. This problem is challenging because (i) the functional form of the nonlinear relationship between gene expression and the perturbation is unknown and (ii) identification of the most important genes is a high-dimensional variable selection problem. To deal with these challenges, we present here a method based on the model-X knockoffs framework and Deep Neural Networks to identify significant gene expression changes in multiple perturbation experiments. This approach makes no assumptions on the functional form of the dependence between the responses and the perturbations and it enjoys finite sample false discovery rate control for the selected set of important gene expression responses. We apply this approach to the Library of Integrated Network-Based Cellular Signature data sets which is a National Institutes of Health Common Fund program that catalogs how human cells globally respond to chemical, genetic and disease perturbations. We identified important genes whose expression is directly modulated in response to perturbation with anthracycline, vorinostat, trichostatin-a, geldanamycin and sirolimus. We compare the set of important genes that respond to these small molecules to identify co-responsive pathways. Identification of which genes respond to specific perturbation stressors can provide better understanding of the underlying mechanisms of disease and advance the identification of new drug targets.
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Affiliation(s)
- Tingting Zhao
- Department of Information Systems and Analytics, College of Business, Bryant University, Smithfield, 02917, RI, USA
- Center for Health and Behavioral Sciences, Bryant University, Smithfield, 02917, RI, USA
| | - Guangyu Zhu
- Department of Computer Science and Statistics, University of Rhode Island, Kingston, 02881, RI, USA
| | - Harsh Vardhan Dubey
- Department of Mathematics & Statistics, University of Massachusetts Amherst, Amherst, 01003, MA, USA
| | - Patrick Flaherty
- Department of Mathematics & Statistics, University of Massachusetts Amherst, Amherst, 01003, MA, USA
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Punia A, Choudhary P, Sharma N, Dahiya S, Gulia P, Chhillar AK. Therapeutic Approaches for Combating Aspergillus Associated Infection. Curr Drug Targets 2022; 23:1465-1488. [PMID: 35748549 DOI: 10.2174/1389450123666220623164548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 01/25/2023]
Abstract
Now-a-days fungal infection emerges as a significant problem to healthcare management systems due to high frequency of associated morbidity, mortality toxicity, drug-drug interactions, and resistance of the antifungal agents. Aspergillus is the most common mold that cause infection in immunocompromised hosts. It's a hyaline mold that is cosmopolitan and ubiquitous in nature. Aspergillus infects around 10 million population each year with a mortality rate of 30-90%. Clinically available antifungal formulations are restricted to four classes (i.e., polyene, triazole, echinocandin, and allylamine), and each of them have their own limitations associated with the activity spectrum, the emergence of resistance, and toxicity. Consequently, novel antifungal agents with modified and altered chemical structures are required to combat these invasive fungal infections. To overcome these limitations, there is an urgent need for new antifungal agents that can act as potent drugs in near future. Currently, some compounds have shown effective antifungal activity. In this review article, we have discussed all potential antifungal therapies that contain old antifungal drugs, combination therapies, and recent novel antifungal formulations, with a focus on the Aspergillus associated infections.
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Affiliation(s)
- Aruna Punia
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
| | - Pooja Choudhary
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
| | - Namita Sharma
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
| | - Sweety Dahiya
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
| | - Prity Gulia
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
| | - Anil K Chhillar
- Department of Biotechnology, Maharishi Dayanand University, Rohtak, Haryana 124001, India
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10
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Soleimani N, Javadi MM. Future prospects of bacteria-mediated cancer therapies: Affliction or opportunity? Microb Pathog 2022; 172:105795. [PMID: 36155065 DOI: 10.1016/j.micpath.2022.105795] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/05/2022] [Accepted: 09/19/2022] [Indexed: 01/10/2023]
Abstract
Cancer, as a disease characterized by uncontrolled growth of cells, is recognized as one of the significant challenges in the field of health and medicine. There are various treatments for cancer like surgery, hormone therapy, chemotherapy, etc., but they have negative effects on the patient's lifestyle. Numerous side effects, and recently the emergence of drug resistance to these methods are weaknesses of these treatments. The utilization of bacteria as a treatment for cancer has attracted scientists' attention in the last decade. There are various methods of using bacteria to treat cancer, including the use of live, attenuated, or genetically engineered microbes, the use of bacterial toxins as an immunotoxin or conjugated to tumor antigens, bacteria-based cancer immunotherapy, bacterial vectors for gene-directed enzyme prodrug, and also the undeniable role of probiotics in treatment, are the cases that today are used for treatment. Bacterial therapy has shown a greater promise in cancer treatment due to its ability to lyse the tumor cells and deliver therapeutic products. However, the potential cytotoxicity of bacteria for healthy tissues, their inability to entirely lyse cancerous cells, and the possibility of mutations in their genomes are among the challenges of bacteriotherapy for cancer. Herein, we summarize the mechanism of bacteria, their potential benefits and harms, and the future of research in this field.
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Affiliation(s)
- Neda Soleimani
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
| | - Mahtab Moshref Javadi
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
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Kuroyanagi G, Kawabata T, Tokuda H, Fujita K, Matsushima-Nishiwaki R, Sakai G, Tachi J, Hioki T, Kim W, Iida H, Otsuka T, Kozawa O. Attenuation by HSP90 inhibitors of EGF-elicited migration of osteoblasts: involvement of p44/p42 MAP kinase. Connect Tissue Res 2022; 63:359-369. [PMID: 34100663 DOI: 10.1080/03008207.2021.1939323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND We have demonstrated that epidermal growth factor (EGF)-induced migration of osteoblast-like MC3T3-E1 cells is mediated through p44/p42 mitogen-activated protein (MAP) kinase, p38 MAP kinase, stress-activated protein kinase/ c-Jun N-terminal kinase (SAPK/JNK), and Akt.The molecular chaperone heat shock protein 90 (HSP90) is abundantly expressed in osteoblasts. However, the role of HSP90 in osteoblast migration remains obscure. OBJECTIVE In this study, we investigated the effect of HSP90 inhibitors on the EGF-induced migration of MC3T3-E1 cells and the mechanism. METHODS Clonal osteoblast-like MC3T3-E1 cells were treated with the HSP90 inhibitors geldanamycin or onalespib and then stimulated with EGF. Cell migration was evaluated using the transwell cell migration assay and wound-healing assay. The viability of MC3T3-E1 cells was analyzed using the Cell Counting Kit-8. The phosphorylation of p44/p42 MAP kinase, p38 MAP kinase, SAPK/JNK, Akt, and protein kinase-like endoplasmic reticulum kinase (PERK) was evaluated by western blot analysis. RESULTS EGF-induced migration was significantly suppressed by geldanamycin and onalespib, evaluated by both transwell cell migration assay and wound-healing assay. Geldanamycin and onalespib did not significantly alter cell viability. Geldanamycin and onalespib markedly reduced the EGF-induced phosphorylation of p44/p42 MAP kinase, but not p38 MAP kinase or Akt. By contrast, geldanamycin and onalespib increased the EGF-induced phosphorylation of SAPK/JNK. PERK phosphorylation was not significantly affected by geldanamycin or onalespib. CONCLUSION Our results strongly suggest that HSP90 inhibitors reduce the EGF-induced osteoblast migration through the p44/p42 MAP kinase.
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Affiliation(s)
- Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tetsu Kawabata
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Orthopedic Surgery, Toyokawa City Hospital, Toyokawa, Japan
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Clinical Laboratory/Medical Genome Center Biobank, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kazuhiko Fujita
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Go Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Junko Tachi
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tomoyuki Hioki
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Dermatology, Kizawa Memorial Hospital, Minokamo, Gifu, Japan
| | - Woo Kim
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroki Iida
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Takanobu Otsuka
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
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12
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Kuroyanagi G, Tokuda H, Fujita K, Kawabata T, Sakai G, Kim W, Hioki T, Tachi J, Matsushima-Nishiwaki R, Otsuka T, Iida H, Kozawa O. Upregulation of TGF-β-induced HSP27 by HSP90 inhibitors in osteoblasts. BMC Musculoskelet Disord 2022; 23:495. [PMID: 35619094 PMCID: PMC9134601 DOI: 10.1186/s12891-022-05419-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 04/27/2022] [Indexed: 06/02/2024] Open
Abstract
Background Heat shock protein (HSP) 90 functions as a molecular chaperone and is constitutively expressed and induced in response to stress in many cell types. We have previously demonstrated that transforming growth factor-β (TGF-β), the most abundant cytokine in bone cells, induces the expression of HSP27 through Smad2, p44/p42 mitogen-activated protein kinase (MAPK), p38 MAPK, and stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) in mouse osteoblastic MC3T3-E1 cells. This study investigated the effects of HSP90 on the TGF-β-induced HSP27 expression and the underlying mechanism in mouse osteoblastic MC3T3-E1 cells. Methods Clonal osteoblastic MC3T3-E1 cells were treated with the HSP90 inhibitors and then stimulated with TGF-β. HSP27 expression and the phosphorylation of Smad2, p44/p42 MAPK, p38 MAPK, and SAPK/JNK were evaluated by western blot analysis. Result HSP90 inhibitors 17-dimethylaminoethylamino-17-demethoxy-geldanamycin (17-DMAG) and onalespib significantly enhanced the TGF-β-induced HSP27 expression. TGF-β inhibitor SB431542 reduced the enhancement by 17-DMAG or onalespib of the TGF-β-induced HSP27 expression levels. HSP90 inhibitors, geldanamycin, onalespib, and 17-DMAG did not affect the TGF-β-stimulated phosphorylation of Smad2. Geldanamycin did not affect the TGF-β-stimulated phosphorylation of p44/p42 MAPK or p38 MAPK but significantly enhanced the TGF-β-stimulated phosphorylation of SAPK/JNK. Onalespib also increased the TGF-β-stimulated phosphorylation of SAPK/JNK. Furthermore, SP600125, a specific inhibitor for SAPK/JNK, significantly suppressed onalespib or geldanamycin’s enhancing effect of the TGF-β-induced HSP27 expression levels. Conclusion Our results strongly suggest that HSP90 inhibitors upregulated the TGF-β-induced HSP27 expression and that these effects of HSP90 inhibitors were mediated through SAPK/JNK pathway in osteoblasts. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05419-1.
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Affiliation(s)
- Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan. .,Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. .,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Clinical Laboratory/Medical Genome Center Biobank, National Center for Geriatrics and Gerontology, Obu, Japan.,Department of Metabolic Research, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kazuhiko Fujita
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tetsu Kawabata
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Go Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.,Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Woo Kim
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tomoyuki Hioki
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Dermatology, Kizawa Memorial Hospital, Minokamo, Japan
| | - Junko Tachi
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Takanobu Otsuka
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Hiroki Iida
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
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13
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Senotherapeutics in Cancer and HIV. Cells 2022; 11:cells11071222. [PMID: 35406785 PMCID: PMC8997781 DOI: 10.3390/cells11071222] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/14/2022] Open
Abstract
Cellular senescence is a stress-response mechanism that contributes to homeostasis maintenance, playing a beneficial role during embryogenesis and in normal adult organisms. In contrast, chronic senescence activation may be responsible for other events such as age-related disorders, HIV and cancer development. Cellular senescence activation can be triggered by different insults. Regardless of the inducer, there are several phenotypes generally shared among senescent cells: cell division arrest, an aberrant shape, increased size, high granularity because of increased numbers of lysosomes and vacuoles, apoptosis resistance, defective metabolism and some chromatin alterations. Senescent cells constitute an important area for research due to their contributions to the pathogenesis of different diseases such as frailty, sarcopenia and aging-related diseases, including cancer and HIV infection, which show an accelerated aging. Hence, a new pharmacological category of treatments called senotherapeutics is under development. This group includes senolytic drugs that selectively attack senescent cells and senostatic drugs that suppress SASP factor delivery, inhibiting senescent cell development. These new drugs can have positive therapeutic effects on aging-related disorders and act in cancer as antitumor drugs, avoiding the undesired effects of senescent cells such as those from SASP. Here, we review senotherapeutics and how they might affect cancer and HIV disease, two very different aging-related diseases, and review some compounds acting as senolytics in clinical trials.
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14
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Silva RCMC, Ribeiro JS, da Silva GPD, da Costa LJ, Travassos LH. Autophagy Modulators in Coronavirus Diseases: A Double Strike in Viral Burden and Inflammation. Front Cell Infect Microbiol 2022; 12:845368. [PMID: 35433503 PMCID: PMC9010404 DOI: 10.3389/fcimb.2022.845368] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/02/2022] [Indexed: 12/12/2022] Open
Abstract
Coronaviruses are the etiologic agents of several diseases. Coronaviruses of critical medical importance are characterized by highly inflammatory pathophysiology, involving severe pulmonary impairment and infection of multiple cell types within the body. Here, we discuss the interplay between coronaviruses and autophagy regarding virus life cycle, cell resistance, and inflammation, highlighting distinct mechanisms by which autophagy restrains inflammatory responses, especially those involved in coronavirus pathogenesis. We also address different autophagy modulators available and the rationale for drug repurposing as an attractive adjunctive therapy. We focused on pharmaceuticals being tested in clinical trials with distinct mechanisms but with autophagy as a common target. These autophagy modulators act in cell resistance to virus infection and immunomodulation, providing a double-strike to prevent or treat severe disease development and death from coronaviruses diseases.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratório de Imunoreceptores e Sinalização Celular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jhones Sousa Ribeiro
- Laboratório de Imunoreceptores e Sinalização Celular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Peixoto Duarte da Silva
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Jesus da Costa
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonardo Holanda Travassos
- Laboratório de Imunoreceptores e Sinalização Celular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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15
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Schmidt S, Kildgaard S, Guo H, Beemelmanns C, Poulsen M. The chemical ecology of the fungus-farming termite symbiosis. Nat Prod Rep 2022; 39:231-248. [PMID: 34879123 PMCID: PMC8865390 DOI: 10.1039/d1np00022e] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 01/19/2023]
Abstract
Covering: September 1972 to December 2020Explorations of complex symbioses have often elucidated a plethora of previously undescribed chemical compounds that may serve ecological functions in signalling, communication or defence. A case in point is the subfamily of termites that cultivate a fungus as their primary food source and maintain complex bacterial communities, from which a series of novel compound discoveries have been made. Here, we summarise the origins and types of 375 compounds that have been discovered from the symbiosis over the past four decades and discuss the potential for synergistic actions between compounds within the complex chemical mixtures in which they exist. We go on to highlight how vastly underexplored the diversity and geographic distribution of the symbiosis is, which leaves ample potential for natural product discovery of compounds of both ecological and medical importance.
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Affiliation(s)
- Suzanne Schmidt
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
| | - Sara Kildgaard
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
| | - Huijuan Guo
- Leibniz Institute for Natural Product Research and Infection Biology e.V., Hans-Knöll-Institute (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology e.V., Hans-Knöll-Institute (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Michael Poulsen
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
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16
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Licata NV, Cristofani R, Salomonsson S, Wilson KM, Kempthorne L, Vaizoglu D, D’Agostino VG, Pollini D, Loffredo R, Pancher M, Adami V, Bellosta P, Ratti A, Viero G, Quattrone A, Isaacs AM, Poletti A, Provenzani A. C9orf72 ALS/FTD dipeptide repeat protein levels are reduced by small molecules that inhibit PKA or enhance protein degradation. EMBO J 2022; 41:e105026. [PMID: 34791698 PMCID: PMC8724771 DOI: 10.15252/embj.2020105026] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 09/21/2021] [Accepted: 10/12/2021] [Indexed: 11/09/2022] Open
Abstract
Intronic GGGGCC (G4C2) hexanucleotide repeat expansion within the human C9orf72 gene represents the most common cause of familial forms of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) (C9ALS/FTD). Repeat-associated non-AUG (RAN) translation of repeat-containing C9orf72 RNA results in the production of neurotoxic dipeptide-repeat proteins (DPRs). Here, we developed a high-throughput drug screen for the identification of positive and negative modulators of DPR levels. We found that HSP90 inhibitor geldanamycin and aldosterone antagonist spironolactone reduced DPR levels by promoting protein degradation via the proteasome and autophagy pathways respectively. Surprisingly, cAMP-elevating compounds boosting protein kinase A (PKA) activity increased DPR levels. Inhibition of PKA activity, by both pharmacological and genetic approaches, reduced DPR levels in cells and rescued pathological phenotypes in a Drosophila model of C9ALS/FTD. Moreover, knockdown of PKA-catalytic subunits correlated with reduced translation efficiency of DPRs, while the PKA inhibitor H89 reduced endogenous DPR levels in C9ALS/FTD patient-derived iPSC motor neurons. Together, our results suggest new and druggable pathways modulating DPR levels in C9ALS/FTD.
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Affiliation(s)
- Nausicaa V Licata
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Riccardo Cristofani
- Dipartimento di Scienze Farmacologiche e BiomolecolariUniversità degli Studi di MilanoMilanItaly
| | - Sally Salomonsson
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLUCL Queen Square Institute of NeurologyLondonUK
| | - Katherine M Wilson
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLUCL Queen Square Institute of NeurologyLondonUK
| | - Liam Kempthorne
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLUCL Queen Square Institute of NeurologyLondonUK
| | - Deniz Vaizoglu
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLUCL Queen Square Institute of NeurologyLondonUK
| | - Vito G D’Agostino
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Daniele Pollini
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Rosa Loffredo
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Michael Pancher
- HTS Core Facility, Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Valentina Adami
- HTS Core Facility, Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Paola Bellosta
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
- Department of MedicineNYU at Grossman School of MedicineNYUSA
| | - Antonia Ratti
- Department of NeurologyStroke Unit and Laboratory of NeuroscienceIstituto Auxologico Italiano, IRCCSMilanItaly
- Dipartimento di Biotecnologie Mediche e Medicina TraslazionaleUniversità degli Studi di MilanoMilanItaly
| | | | - Alessandro Quattrone
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
| | - Adrian M Isaacs
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLUCL Queen Square Institute of NeurologyLondonUK
| | - Angelo Poletti
- Dipartimento di Scienze Farmacologiche e BiomolecolariUniversità degli Studi di MilanoMilanItaly
| | - Alessandro Provenzani
- Department of Cellular, Computational and Integrative BiologyUniversity of TrentoTrentoItaly
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17
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A Glossary for Chemical Approaches towards Unlocking the Trove of Metabolic Treasures in Actinomycetes. Molecules 2021; 27:molecules27010142. [PMID: 35011373 PMCID: PMC8746466 DOI: 10.3390/molecules27010142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 12/02/2022] Open
Abstract
Actinobacterial natural products showed a critical basis for the discovery of new antibiotics as well as other lead secondary metabolites. Varied environmental and physiological signals touch the antibiotic machinery that faced a serious decline in the last decades. The reason was exposed by genomic sequencing data, which revealed that Actinomycetes harbor a large portion of silent biosynthetic gene clusters in their genomes that encrypt for secondary metabolites. These gene clusters are linked with a great reservoir of yet unknown molecules, and arranging them is considered a major challenge for biotechnology approaches. In the present paper, we discuss the recent strategies that have been taken to augment the yield of secondary metabolites via awakening these cryptic genes in Actinomycetes with emphasis on chemical signaling molecules used to induce the antibiotics biosynthesis. The rationale, types, applications and mechanisms are discussed in detail, to reveal the productive path for the unearthing of new metabolites, covering the literature until the end of 2020.
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18
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Oyagawa CRM, Grimsey NL. Cannabinoid receptor CB 1 and CB 2 interacting proteins: Techniques, progress and perspectives. Methods Cell Biol 2021; 166:83-132. [PMID: 34752341 DOI: 10.1016/bs.mcb.2021.06.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cannabinoid receptors 1 and 2 (CB1 and CB2) are implicated in a range of physiological processes and have gained attention as promising therapeutic targets for a number of diseases. Protein-protein interactions play an integral role in modulating G protein-coupled receptor (GPCR) expression, subcellular distribution and signaling, and the identification and characterization of these will not only improve our understanding of GPCR function and biology, but may provide a novel avenue for therapeutic intervention. A variety of techniques are currently being used to investigate GPCR protein-protein interactions, including Förster/fluorescence and bioluminescence resonance energy transfer (FRET and BRET), proximity ligation assay (PLA), and bimolecular fluorescence complementation (BiFC). However, the reliable application of these methodologies is dependent on the use of appropriate controls and the consideration of the physiological context. Though not as extensively characterized as some other GPCRs, the investigation of CB1 and CB2 interacting proteins is a growing area of interest, and a range of interacting partners have been identified to date. This review summarizes the current state of the literature regarding the cannabinoid receptor interactome, provides commentary on the methodologies and techniques utilized, and discusses future perspectives.
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Affiliation(s)
- Caitlin R M Oyagawa
- Department of Pharmacology and Clinical Pharmacology, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Natasha L Grimsey
- Department of Pharmacology and Clinical Pharmacology, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand.
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19
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Rashid MH, Babu D, Siraki AG. Interactions of the antioxidant enzymes NAD(P)H: Quinone oxidoreductase 1 (NQO1) and NRH: Quinone oxidoreductase 2 (NQO2) with pharmacological agents, endogenous biochemicals and environmental contaminants. Chem Biol Interact 2021; 345:109574. [PMID: 34228969 DOI: 10.1016/j.cbi.2021.109574] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/17/2021] [Accepted: 07/01/2021] [Indexed: 01/11/2023]
Abstract
NAD(P)H Quinone Oxidoreductase 1 (NQO1) is an antioxidant enzyme that catalyzes the two-electron reduction of several different classes of quinone-like compounds (quinones, quinone imines, nitroaromatics, and azo dyes). One-electron reduction of quinone or quinone-like metabolites is considered to generate semiquinones to initiate redox cycling that is responsible for the generation of reactive oxygen species and oxidative stress and may contribute to the initiation of adverse drug reactions and adverse health effects. On the other hand, the two-electron reduction of quinoid compounds appears important for drug activation (bioreductive activation) via chemical rearrangement or autoxidation. Two-electron reduction decreases quinone levels and opportunities for the generation of reactive species that can deplete intracellular thiol pools. Also, studies have shown that induction or depletion (knockout) of NQO1 were associated with decreased or increased susceptibilities to oxidative stress, respectively. Moreover, another member of the quinone reductase family, NRH: Quinone Oxidoreductase 2 (NQO2), has a significant functional and structural similarity with NQO1. The activity of both antioxidant enzymes, NQO1 and NQO2, becomes critically important when other detoxification pathways are exhausted. Therefore, this article summarizes the interactions of NQO1 and NQO2 with different pharmacological agents, endogenous biochemicals, and environmental contaminants that would be useful in the development of therapeutic approaches to reduce the adverse drug reactions as well as protection against quinone-induced oxidative damage. Also, future directions and areas of further study for NQO1 and NQO2 are discussed.
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Affiliation(s)
- Md Harunur Rashid
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada; Institute of Food and Radiation Biology, Bangladesh Atomic Energy Commission, Bangladesh
| | - Dinesh Babu
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada
| | - Arno G Siraki
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada.
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20
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Kaewkla O, Franco CMM. Amycolatopsis pittospori sp. nov., an endophytic actinobacterium isolated from native apricot tree and genome mining revealed the biosynthesis potential as antibiotic producer and plant growth promoter. Antonie Van Leeuwenhoek 2021; 114:365-377. [PMID: 33598876 DOI: 10.1007/s10482-021-01519-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/17/2021] [Indexed: 11/26/2022]
Abstract
An endophytic actinobacterium, strain PIP199T, was isolated from a root sample of a native apricot growing on the Bedford Park campus of Flinders University, Adelaide, South Australia. The result of a polyphasic study showed that this strain was identified as a new member of the genus Amycolatopsis. Strain PIP199T is an aerobic actinobacterium with well-developed substrate mycelia and aerial mycelia that form short chains of spores. Amycolatopsis keratiniphila subsp. keratiniphila DSM 44409T (99.7%), Amycolatopsis lurida DSM 43134T (99.6%) and Amycolatopsis keratiniphila subsp. nogabecina DSM 44586T (99.4%) shared the highest 16S rRNA gene sequence similarity. A. keratiniphila subsp. keratiniphila DSM 44409T and A. lurida DSM 43134T were the closest phylogenetic neighbors. Chemotaxonomic data including major fatty acids, cell wall components and major menaquinones confirmed the affiliation of strain PIP199T to the genus Amycolatopsis. The phylogenetic analysis, physiological and biochemical studies and genomic study, allowed the genotypic and phenotypic differentiation of strain PIP199T and the closely related species with valid names. ANIb and dDDH values when compared to Amycolatopsis keratiniphila subsp. keratiniphila DSM 44409T were 87.3% and 36.4%, respectively. The name proposed for the new species is Amycolatopsis pittospori sp. nov. The type strain is PIP199T (= NRRL B-65536T = TBRC 10618T).
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Affiliation(s)
- Onuma Kaewkla
- Department of Biology, Faculty of Science, Mahasarakham University, Kantaravichai, Maha Sarakham Province, 44150, Thailand.
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia.
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21
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Han SH, Park YJ, Park CM. HOS1 activates DNA repair systems to enhance plant thermotolerance. NATURE PLANTS 2020; 6:1439-1446. [PMID: 33199892 DOI: 10.1038/s41477-020-00809-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/16/2020] [Indexed: 05/16/2023]
Abstract
Plants possess an astonishing capability of effectively adapting to a wide range of temperatures, ranging from freezing to near-boiling temperatures1,2. Yet, heat is a critical obstacle to plant survival. The deleterious effects of heat shock on cell function include misfolding of cellular proteins, disruption of cytoskeletons and membranes, and disordering of RNA metabolism and genome integrity3-5. Plants stimulate diverse heat shock response pathways in response to abrupt temperature increases. While it is known that stressful high temperatures disturb genome integrity by causing nucleotide modifications and strand breakages or impeding DNA repair6, it is largely unexplored how plants cope with heat-induced DNA damages. Here, we demonstrated that high expression of osmotically reponsive genes 1 (HOS1) induces thermotolerance by activating DNA repair components. Thermotolerance and DNA repair capacity were substantially reduced in HOS1-deficient mutants, in which thermal induction of genes encoding DNA repair systems, such as the DNA helicase RECQ2, was markedly decreased. Notably, HOS1 proteins were thermostabilized in a heat shock factor A1/heat shock protein 90 (HSP90)-dependent manner. Our data indicate that the thermoresponsive HSP90-HOS1-RECQ2 module contributes to sustaining genome integrity during the acquisition of thermotolerance, providing a distinct molecular link between DNA repair and thermotolerance.
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Affiliation(s)
- Shin-Hee Han
- Department of Chemistry, Seoul National University, Seoul, Korea
| | - Young-Joon Park
- Department of Chemistry, Seoul National University, Seoul, Korea
| | - Chung-Mo Park
- Department of Chemistry, Seoul National University, Seoul, Korea.
- Plant Genomics and Breeding Institute, Seoul National University, Seoul, Korea.
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22
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Vahedi-Shahandashti R, Lass-Flörl C. Novel Antifungal Agents and Their Activity against Aspergillus Species. J Fungi (Basel) 2020; 6:E213. [PMID: 33050302 PMCID: PMC7711508 DOI: 10.3390/jof6040213] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022] Open
Abstract
There is a need for new antifungal agents, mainly due to increased incidence of invasive fungal infections (IFI), high frequency of associated morbidity and mortality and limitations of the current antifungal agents (e.g., toxicity, drug-drug interactions, and resistance). The clinically available antifungals for IFI are restricted to four main classes: polyenes, flucytosine, triazoles, and echinocandins. Several antifungals are hampered by multiple resistance mechanisms being present in fungi. Consequently, novel antifungal agents with new targets and modified chemical structures are required to combat fungal infections. This review will describe novel antifungals, with a focus on the Aspergillus species.
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Affiliation(s)
| | - Cornelia Lass-Flörl
- Institute of Hygiene and Medical Microbiology, Medical University Innsbruck, 6020 Innsbruck, Austria;
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23
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Hioki T, Tokuda H, Nakashima D, Fujita K, Kawabata T, Sakai G, Kim W, Tachi J, Tanabe K, Matsushima-Nishiwaki R, Otsuka T, Iida H, Kozawa O. HSP90 inhibitors strengthen extracellular ATP-stimulated synthesis of interleukin-6 in osteoblasts: Amplification of p38 MAP kinase. Cell Biochem Funct 2020; 39:88-97. [PMID: 32567086 DOI: 10.1002/cbf.3566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/03/2020] [Accepted: 05/17/2020] [Indexed: 12/22/2022]
Abstract
Heat shock protein 90 (HSP90) is expressed ubiquitously in a variety of cell types including osteoblasts. HSP90 acts as a key driver of proteostasis under pathophysiological conditions. Here, we investigated the involvement of HSP90 in extracellular ATP-stimulated interleukin (IL)-6 synthesis and HSP90 downstream signalling in osteoblast-like MC3T3-E1 cells. In osteoblasts, extracellular ATP stimulates the synthesis of IL-6, a bone-remodelling agent. Geldanamycin, 17-allylamino-17-demethoxy-geldanamycin (17-AAG) and onalespib, three different HSP90 inhibitors, amplified the ATP-stimulated IL-6 release. Geldanamycin increased IL-6 mRNA expression elicited by ATP. ATP enhanced the triiodothyronine-induced osteocalcin release, but HSP90 inhibitors suppressed the release. Extracellular ATP induced the phosphorylation of p44/p42 mitogen-activated protein kinase (MAPK), p38 MAPK, c-Jun N-terminal kinase (JNK), p70 S6 kinase, Akt, and myosin phosphatase-targeting subunit (MYPT), a Rho-kinase substrate. SB203580, an inhibitor of p38 MAPK, suppressed ATP-stimulated IL-6 release. Inhibitors of MEK1/2 (PD98059), JNK (SP600125), upstream kinase of p70 S6 kinase (rapamycin) and Akt (deguelin), all increased IL-6 release. Y27632, a Rho-kinase inhibitor, failed to affect the IL-6 release stimulated by ATP. Geldanamycin and 17-AAG both amplified ATP-induced p38 MAPK phosphorylation, although geldanamycin inhibited the phosphorylation of Akt induced by ATP. In addition, SB203580 significantly reduced the amplification by geldanamycin of the IL-6 release. Taken together, our results strongly suggest that HSP90 inhibitors up-regulate extracellular ATP-stimulated IL-6 synthesis via amplification of p38 MAPK activation in osteoblasts. SIGNIFICANCE OF THE STUDY: Heat shock protein 90 (HSP90) acts as a key driver of proteostasis under pathophysiological conditions in a variety of cell types. We have previously shown that HSP90 is expressed at high levels in osteoblast-like MC3T3-E1 cells, even in their quiescent state, consistent with HSP90 performing an important physiological function in osteoblasts. In the present study, we investigated whether HSP90 is implicated in extracellular ATP-induced interleukin (IL)-6 synthesis in osteoblast-like MC3T3-E1 cells. Our results strongly suggest that HSP90 inhibitors up-regulate extracellular ATP-stimulated IL-6 synthesis via amplification of p38 mitogen-activated protein kinase activation in osteoblasts.
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Affiliation(s)
- Tomoyuki Hioki
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Dermatology, Kizawa Memorial Hospital, Minokamo, Japan
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Clinical Laboratory/Biobank of Medical Genome Centre, National Centre for Geriatrics and Gerontology, Obu, Japan
| | - Daiki Nakashima
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anaesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kazuhiko Fujita
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tetsu Kawabata
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Go Sakai
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Woo Kim
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anaesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Junko Tachi
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Anaesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kumiko Tanabe
- Department of Anaesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Takanobu Otsuka
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroki Iida
- Department of Anaesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
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Zhang X, Wang Q, Li Y, Ruan C, Wang S, Hu L, Ye M. Solvent-Induced Protein Precipitation for Drug Target Discovery on the Proteomic Scale. Anal Chem 2019; 92:1363-1371. [PMID: 31794197 DOI: 10.1021/acs.analchem.9b04531] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
High-throughput drug discovery is highly dependent on the targets available to accelerate the process of candidates screening. Traditional chemical proteomics approaches for the screening of drug targets usually require the immobilization/modification of the drug molecules to pull down the interacting proteins. Recently, energetics-based proteomics methods provide an alternative way to study drug-protein interaction by using complex cell lysate directly without any modification of the drugs. In this study, we developed a novel energetics-based proteomics strategy, the solvent-induced protein precipitation (SIP) approach, to profile the interaction of drugs with their target proteins by using quantitative proteomics. The method is easy to use for any laboratory with the common chemical reagents of acetone, ethanol, and acetic acid. The SIP approach was able to identify the well-known protein targets of methotrexate, SNS-032, and a pan-kinase inhibitor of staurosporine in cell lysate. We further applied this approach to discover the off-targets of geldanamycin. Three known protein targets of the HSP90 family were successfully identified, and several potential off-targets including NADH dehydrogenase subunits NDUFV1 and NDUFAB1 were identified for the first time, and the NDUFV1 was validated by using Western blotting. In addition, this approach was capable of evaluating the affinity of the drug-target interaction. The data collectively proved that our approach provides a powerful platform for drug target discovery.
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Affiliation(s)
- Xiaolei Zhang
- Key Laboratory for Molecular Enzymology & Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences , Jilin University , Changchun 130012 , China.,CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Qi Wang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Yanan Li
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Chengfei Ruan
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Shuyue Wang
- Key Laboratory for Molecular Enzymology & Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences , Jilin University , Changchun 130012 , China.,CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Lianghai Hu
- Key Laboratory for Molecular Enzymology & Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences , Jilin University , Changchun 130012 , China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
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Roles of Extracellular HSPs as Biomarkers in Immune Surveillance and Immune Evasion. Int J Mol Sci 2019; 20:ijms20184588. [PMID: 31533245 PMCID: PMC6770223 DOI: 10.3390/ijms20184588] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/13/2019] [Accepted: 09/14/2019] [Indexed: 12/17/2022] Open
Abstract
Extracellular heat shock proteins (ex-HSPs) have been found in exosomes, oncosomes, membrane surfaces, as well as free HSP in cancer and various pathological conditions, also known as alarmins. Such ex-HSPs include HSP90 (α, β, Gp96, Trap1), HSP70, and large and small HSPs. Production of HSPs is coordinately induced by heat shock factor 1 (HSF1) and hypoxia-inducible factor 1 (HIF-1), while matrix metalloproteinase 3 (MMP-3) and heterochromatin protein 1 are novel inducers of HSPs. Oncosomes released by tumor cells are a major aspect of the resistance-associated secretory phenotype (RASP) by which immune evasion can be established. The concepts of RASP are: (i) releases of ex-HSP and HSP-rich oncosomes are essential in RASP, by which molecular co-transfer of HSPs with oncogenic factors to recipient cells can promote cancer progression and resistance against stresses such as hypoxia, radiation, drugs, and immune systems; (ii) RASP of tumor cells can eject anticancer drugs, targeted therapeutics, and immune checkpoint inhibitors with oncosomes; (iii) cytotoxic lipids can be also released from tumor cells as RASP. ex-HSP and membrane-surface HSP (mHSP) play immunostimulatory roles recognized by CD91+ scavenger receptor expressed by endothelial cells-1 (SREC-1)+ Toll-like receptors (TLRs)+ antigen-presenting cells, leading to antigen cross-presentation and T cell cross-priming, as well as by CD94+ natural killer cells, leading to tumor cytolysis. On the other hand, ex-HSP/CD91 signaling in cancer cells promotes cancer progression. HSPs in body fluids are potential biomarkers detectable by liquid biopsies in cancers and tissue-damaged diseases. HSP-based vaccines, inhibitors, and RNAi therapeutics are also reviewed.
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KAWABATA T, TOKUDA H, FUJITA K, MATSUSHIMA-NISHIWAKI R, SAKAI G, TACHI J, HIOKI T, KIM W, IIDA H, OTSUKA T, KOZAWA O. HSP90 inhibitors diminish PDGF-BB-induced migration of osteoblasts via suppression of p44/p42 MAP kinase. Biomed Res 2019; 40:169-178. [DOI: 10.2220/biomedres.40.169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Tetsu KAWABATA
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences
- Department of Pharmacology, Gifu University Graduate School of Medicine
- Department of Orthopedic Surgery, Toyokawa City Hospital
| | - Haruhiko TOKUDA
- Department of Pharmacology, Gifu University Graduate School of Medicine
- Department of Clinical Laboratory/Medical Genome Center Biobank, National Center for Geriatrics and Gerontology
| | - Kazuhiko FUJITA
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences
- Department of Pharmacology, Gifu University Graduate School of Medicine
| | | | - Go SAKAI
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences
- Department of Pharmacology, Gifu University Graduate School of Medicine
| | - Junko TACHI
- Department of Pharmacology, Gifu University Graduate School of Medicine
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine
| | - Tomoyuki HIOKI
- Department of Pharmacology, Gifu University Graduate School of Medicine
- Department of Dermatology, Kizawa Memorial Hospital
| | - Woo KIM
- Department of Pharmacology, Gifu University Graduate School of Medicine
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine
| | - Hiroki IIDA
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine
| | - Takanobu OTSUKA
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences
| | - Osamu KOZAWA
- Department of Pharmacology, Gifu University Graduate School of Medicine
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Fujii N, McGarr GW, Hatam K, Chandran N, Muia CM, Nishiyasu T, Boulay P, Ghassa R, Kenny GP. Heat shock protein 90 does not contribute to cutaneous vasodilatation in older adults during heat stress. Microcirculation 2019; 26:e12541. [DOI: 10.1111/micc.12541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 02/27/2019] [Indexed: 01/20/2023]
Affiliation(s)
- Naoto Fujii
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
- Faculty of Health and Sport Sciences University of Tsukuba Tsukuba Japan
| | - Gregory W. McGarr
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
| | - Kion Hatam
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
| | - Nithila Chandran
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
| | - Caroline M. Muia
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
| | - Takeshi Nishiyasu
- Faculty of Health and Sport Sciences University of Tsukuba Tsukuba Japan
| | - Pierre Boulay
- Faculty of Physical Activity Sciences University of Sherbrooke Sherbrooke Quebec Canada
| | - Reem Ghassa
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
| | - Glen P. Kenny
- Human and Environmental Physiology Research Unit University of Ottawa Ottawa Ontario Canada
- Clinical Epidemiology Program Ottawa Hospital Research Institute Ottawa Ontario Canada
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Kim W, Tokuda H, Kawabata T, Fujita K, Sakai G, Nakashima D, Tachi J, Kuroyanagi G, Matsushima-Nishiwaki R, Tanabe K, Otsuka T, Iida H, Kozawa O. Enhancement by HSP90 inhibitor of PGD2-stimulated HSP27 induction in osteoblasts: Suppression of SAPK/JNK and p38 MAP kinase. Prostaglandins Other Lipid Mediat 2019; 143:106327. [PMID: 30946899 DOI: 10.1016/j.prostaglandins.2019.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 02/01/2019] [Accepted: 03/14/2019] [Indexed: 11/26/2022]
Abstract
Heat shock protein (HSP) 90 that is ubiquitously expressed in various tissues is a major molecular chaperone. We have previously demonstrated that prostaglandin D2 (PGD2), a bone remodeling factor, elicits the expression of HSP27, a small HSP, through stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) and p38 mitogen-activated protein (MAP) kinase in osteoblast-like MC3T3-E1 cells. In the present study, we investigated the involvement of HSP90 in the PGD2-stimulated HSP27 induction and the underlying mechanism in MC3T3-E1 cells. Onalespib, an inhibitor of HSP90, significantly enhanced the PGD2-stimulated HSP27 induction. In addition, geldanamycin, another HSP90 inhibitor, potentiated the HSP27 induction. Both onalespib and geldanamycin markedly amplified the PGD2-induced phosphorylation of SAPK/JNK and p38 MAP kinase. SP600125, an inhibitor of SAPK/JNK, and SB203580, an inhibitor of p38 MAP kinase, suppressed the amplification by onalespib of the PGD2-stimulated HSP27 induction. These results strongly suggest that HSP90 plays a negative role in the HSP27 induction stimulated by PGD2 in osteoblasts, and that the inhibitory effect of HSP90 is mediated through the regulation of SAPK/JNK and p38 MAP kinase.
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Affiliation(s)
- Woo Kim
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Clinical Laboratory/Biobank of Medical Genome Center, National Center for Geriatrics and Gerontology, Obu, Aichi 474-8511, Japan
| | - Tetsu Kawabata
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Kazuhiko Fujita
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Go Sakai
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Daiki Nakashima
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Junko Tachi
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Gen Kuroyanagi
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan; Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan; Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | | | - Kumiko Tanabe
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Takanobu Otsuka
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Hiroki Iida
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan.
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Taechowisan T, Puckdee W, Waratchareeyakul W, Phutdhawong WS. Anti-Inflammatory Activity of Geldanamycin and Its Derivatives in LPS-Induced RAW 264.7 Cells. ACTA ACUST UNITED AC 2019. [DOI: 10.4236/aim.2019.94024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lejong M, Choa-Duterre M, Vanmuylder N, Louryan S. Geldanamycin administration reduces the amount of primordial germ cells in the mouse embryo. Morphologie 2018; 102:219-224. [PMID: 29807855 DOI: 10.1016/j.morpho.2018.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/01/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Heat shock proteins (HSPs) are expressed or overexpressed in response to exposure to stress. They act as molecular chaperones, ensuring the correct folding of numerous client proteins. HSP90 is one of the most conserved HSPs. Its role extends beyond stress tolerance. HSP90 also contributes to development, differenciation, apoptosis and oncogenesis. Numerous tumors are associated with an overexpression of HSP90 and this expression can be used to evaluate its metastatic capacity. Primordial germ cells (PGCs) exhibit HSP90 expression under normal conditions. PGCs arise early in development and migrate by a combination of passive and active movements towards the gonads. The aim of this work was to study the impact of an inhibition of HSP90 on the migration of the PGCs. Geldanamycin, a well established HSP90 inhibitor with potent antitumor properties was used to achieve this inhibition. MATERIEL AND METHODS 5mg of Geldanamycin were administered to E8 pregnant mice. E17 embryos were removed and fixed for staining and Immunohistochemistry with anti-HSP90 and anti-VASA antibodies. RESULTS Geldanamycin-treated mouse embryos exhibited less VASA-immunopositive cells compared to the non-treated ones. These results suggest that geldanamycin administration at the time of PGCs migration reduces the number of PGCs in the gonads. HSP90 and VASA stainings were identical. We therefore expressed the idea that HSP90 could be used as a reliable marker for PGCs.
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Affiliation(s)
- M Lejong
- Laboratory of anatomy, biomechanics and organogenesis, faculty of medicine, Université Libre de Bruxelles, campus Erasme, route de Lennick, 808, 1070 Anderlecht, Belgium
| | - M Choa-Duterre
- Laboratory of anatomy, biomechanics and organogenesis, faculty of medicine, Université Libre de Bruxelles, campus Erasme, route de Lennick, 808, 1070 Anderlecht, Belgium
| | - N Vanmuylder
- Laboratory of anatomy, biomechanics and organogenesis, faculty of medicine, Université Libre de Bruxelles, campus Erasme, route de Lennick, 808, 1070 Anderlecht, Belgium
| | - S Louryan
- Laboratory of anatomy, biomechanics and organogenesis, faculty of medicine, Université Libre de Bruxelles, campus Erasme, route de Lennick, 808, 1070 Anderlecht, Belgium.
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Myrianthopoulos V, Evangelou K, Vasileiou PVS, Cooks T, Vassilakopoulos TP, Pangalis GA, Kouloukoussa M, Kittas C, Georgakilas AG, Gorgoulis VG. Senescence and senotherapeutics: a new field in cancer therapy. Pharmacol Ther 2018; 193:31-49. [PMID: 30121319 DOI: 10.1016/j.pharmthera.2018.08.006] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Cellular senescence is a stress response mechanism ensuring homeostasis. Its temporal activation during embryonic development or normal adult life is linked with beneficial properties. In contrast, persistent (chronic) senescence seems to exert detrimental effects fostering aging and age-related disorders, such as cancer. Due to the lack of a reliable marker able to detect senescence in vivo, its precise impact in age-related diseases is to a large extent still undetermined. A novel reagent termed GL13 (SenTraGorTM) that we developed, allowing senescence recognition in any type of biological material, emerges as a powerful tool to study the phenomenon of senescence in vivo. Exploiting the advantages of this novel methodological approach, scientists will be able to detect and connect senescence with aggressive behavior in human malignancies, such as tolerance to chemotherapy in classical Hodgkin Lymphoma and Langerhans Cell Histiocytosis. The latter depicts the importance of developing the new and rapidly expanding field of senotherapeutic agents targeting and driving to cell death senescent cells. We discuss in detail the current progress of this exciting area of senotherapeutics and suggest its future perspectives and applications.
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Affiliation(s)
- Vassilios Myrianthopoulos
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Division of Pharmaceutical Chemistry, School of Pharmacy, National and Kapodistrian University of Athens, Greece; PharmaInformatics Unit, Athena Research Center, Greece
| | - Konstantinos Evangelou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Department of Anatomy-Histology-Embryology, Medical School, University of Ioannina, Ioannina, Greece
| | - Panagiotis V S Vasileiou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Tomer Cooks
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Theodoros P Vassilakopoulos
- Department of Haematology and Bone Marrow Transplantation, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Myrsini Kouloukoussa
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Museum of Anthropology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Christos Kittas
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandros G Georgakilas
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Athens, Greece.
| | - Vassilis G Gorgoulis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Center for New Biotechnologies and Precision Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Faculty Institute for Cancer Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK; Biomedical Research Foundation, Academy of Athens, Athens, Greece.
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Fujita K, Otsuka T, Kawabata T, Kainuma S, Sakai G, Matsushima-Nishiwaki R, Kozawa O, Tokuda H. HSP90 limits thrombin‑stimulated IL‑6 synthesis in osteoblast‑like MC3T3‑E1 cells: Regulation of p38 MAPK. Int J Mol Med 2018; 42:2185-2192. [PMID: 30066835 DOI: 10.3892/ijmm.2018.3785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 06/29/2018] [Indexed: 11/05/2022] Open
Abstract
Heat shock protein 90 (HSP90), expressed abundantly in a variety of cell types, is a molecular chaperone, and has a central role in protein homeostasis under stress conditions. In our previous study, it was shown that thrombin stimulates interleukin‑6 (IL‑6) synthesis via p44/p42 mitogen‑activated protein kinase (MAPK) and p38 MAPK in osteoblast‑like MC3T3‑E1 cells, and that Rho‑kinase acts as a positive regulator at a point upstream of p38 MAPK, but not p44/p42 MAPK. The present study investigated whether or not HSP90 is involved in the thrombin‑stimulated synthesis of IL‑6 and examined the mechanism by which HSP90 is involved in MC3T3‑E1 cells. Cultured cells were stimulated by treatment with thrombin. IL‑6 concentrations in MC3T3‑E1 cells were determined using an ELISA assay, and levels of phosphorylated p38 MAPK, p44/p42 MAPK and myosin phosphatase targeting subunit, a substrate of Rho‑kinase; were analyzed by western blotting. The 17‑allylamino‑17demethoxy‑geldanamycin (17‑AAG) and 17‑dimethylamino‑ethylamino‑17‑demethoxy‑geldanamycin (17‑DMAG) HSP90 inhibitors significantly enhanced the thrombin‑stimulated release of IL‑6. Geldanamycin, another inhibitor of HSP90, also upregulated the release and mRNA expression of IL‑6. 17‑AAG and geldanamycin markedly potentiated the thrombin‑induced phosphorylation of p38 MAPK without affecting the phosphorylation of p44/p42 MAPK or myosin phosphatase targeting subunit, a substrate of Rho‑kinase. Additionally, the enhancement by 17‑AAG of the thrombin‑stimulated release of IL‑6 was significantly reduced by SB203580, an inhibitor of p38 MAPK. These results suggested that the thrombin‑stimulated synthesis of IL‑6 was limited by HSP90 in osteoblasts, and that the effects of HSP90 were exerted at the point between Rho‑kinase and p38 MAPK.
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Affiliation(s)
- Kazuhiko Fujita
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Takanobu Otsuka
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Tetsu Kawabata
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Shingo Kainuma
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Go Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | | | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501‑1194, Japan
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501‑1194, Japan
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Fujita K, Otsuka T, Kawabata T, Sakai G, Matsushima-Nishiwaki R, Kozawa O, Tokuda H. Inhibitors of heat shock protein 90 augment endothelin‑1‑induced heat shock protein 27 through the SAPK/JNK signaling pathway in osteoblasts. Mol Med Rep 2018; 17:8542-8547. [PMID: 29658585 DOI: 10.3892/mmr.2018.8878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 04/06/2018] [Indexed: 11/06/2022] Open
Abstract
It has been previously reported that endothelin‑1 (ET‑1) stimulates the induction of heat shock protein (HSP) 27 through the activation of p38 mitogen‑activated protein (MAP) kinase and stress‑activated protein kinase/c‑Jun N‑terminal kinase (SAPK/JNK) in osteoblast‑like MC3T3‑E1 cells. The present study investigated whether HSP90, a high‑molecular‑weight HSP, was implicated in the ET‑1‑stimulated HSP27 induction in MC3T3‑E1 cells. The effects of HSP90 inhibitors on the induction of HSP27 were examined. The HSP90 inhibitors geldanamycin and 17‑demethoxygeldanamycin (17‑DMAG) significantly amplified HSP27 induction stimulated by ET‑1 in a dose‑dependent manner. In addition, onalespib (another HSP90 inhibitor) significantly strengthened the ET‑1‑induced HSP27 protein levels. The ET‑1‑stimulated phosphorylation of p38 MAP kinase was minimally affected by geldanamycin, 17‑DMAG or onalespib. Onalespib and 17‑DMAG significantly enhanced the ET‑1‑induced phosphorylation of SAPK/JNK. In addition, SP600125, a SAPK/JNK inhibitor, notably reduced the amplification by onalespib of ET‑1‑induced HSP27. These results suggest that HSP90 limits ET‑1‑stimulated HSP27 induction at a point upstream of SAPK/JNK in osteoblasts. These results suggest that HSP90 may be a novel clinical target for metabolic bone diseases, including osteoporosis.
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Affiliation(s)
- Kazuhiko Fujita
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467‑8601, Japan
| | - Takanobu Otsuka
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467‑8601, Japan
| | - Tetsu Kawabata
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467‑8601, Japan
| | - Go Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467‑8601, Japan
| | | | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501‑1194, Japan
| | - Haruhiko Tokuda
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501‑1194, Japan
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Wang X, Zhang Y, Zhao Y, Liang Y, Xiang C, Zhou H, Zhang H, Zhang Q, Qing H, Jiang B, Xiong H, Peng L. CD24 promoted cancer cell angiogenesis via Hsp90-mediated STAT3/VEGF signaling pathway in colorectal cancer. Oncotarget 2018; 7:55663-55676. [PMID: 27494878 PMCID: PMC5342444 DOI: 10.18632/oncotarget.10971] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 07/16/2016] [Indexed: 01/05/2023] Open
Abstract
CD24 is involved in tumor progression of various cancers, but the effects of CD24 on tumor angiogenesis in colorectal cancer are still unknown. We aimed to investigate the underlying mechanism and role of CD24 on colorectal cancer (CRC) angiogenesis. Our data showed that the microvessal density (MVD) was related to the expression of CD24 in primary and metastasis CRC. Silencing of CD24 could dramatically decrease human umbilical vein endothelial cell (HUVEC) migration, invasion and tubule formation, but trivially affected cell proliferation. We also mechanically showed that silencing CD24 could downregulate the expression of VEGF via inhibiting the phosphorylation and translocation of STAT3. Moreover, Hsp90 was identified as the down-interaction protein of CD24 with co-immunoprecipitation assay and systematic mass spectrometry. Immunofluorescence results showed Hsp90 partly co-localized with CD24 in CRC cell membrane and there was a positive correlation between CD24 and Hsp90 expression in CRC tissues. We gradually evidenced that Hsp90 modulated the stability and degradation of CD24 in a proteasome-depended manner, and transferred the signal transmission from CD24 to STAT3. 17-AAG, a specific Hsp90, could abrogate the CD24 induce- HUVEC migration, invasion and tubule formation in vitro and in vivo. Collectively, our results suggested that CD24 induced CRC angiogenesis in Hsp90-dependent manner and activated STAT3-mediated transcription of VEGF. We provided a new insight into the regulation mechanism of tumor angiogenesis by exploring the role of CD24 in angiogenesis.
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Affiliation(s)
- Xinying Wang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Yu Zhang
- Department of Gastroenterology, The First People's Hospital of Yunnan Province, Kunming 65003, China
| | - Yingying Zhao
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Yanling Liang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Cheng Xiang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Huanyu Zhou
- Department of Ultrasound Imaging, 306 Hospital of PLA, Beijing 100101, China
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical College, Jining 272067, China.,Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York 10029, NY, USA
| | - Qiang Zhang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Haitao Qing
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Bo Jiang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China
| | - Huabao Xiong
- Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York 10029, NY, USA
| | - Liang Peng
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou 510515, China.,Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York 10029, NY, USA
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35
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Kawabata T, Otsuka T, Fujita K, Kainuma S, Yamamoto N, Kuroyanagi G, Sakai G, Matsushima-Nishiwaki R, Kozawa O, Tokuda H. Suppression by HSP90 inhibitors of BMP-4-stimulated osteoprotegerin synthesis in osteoblasts: Attenuation of p70 S6 kinase. Mol Med Rep 2017; 16:8507-8512. [DOI: 10.3892/mmr.2017.7639] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 09/19/2017] [Indexed: 11/05/2022] Open
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36
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Wang Y, Li Y, Ding T. Heat shock protein 90β in the Vero cell membrane binds Japanese encephalitis virus. Int J Mol Med 2017; 40:474-482. [PMID: 28656253 PMCID: PMC5505021 DOI: 10.3892/ijmm.2017.3041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/14/2017] [Indexed: 12/20/2022] Open
Abstract
The pathogenesis of Japanese encephalitis virus (JEV) is complex and unclearly defined, and in particular, the effects of the JEV receptor (JEVR) on diverse susceptible cells are elusive. In contrast to previous studies investigating JEVR in rodent or mosquito cells, in this study, we used primate Vero cells instead. We noted that few novel proteins co‑immunoprecipitated with JEV, and discovered that one of these was heat shock protein 90β (HSP90β), which was probed by mass spectrometry with the highest score of 60.3 after questing the monkey and human protein databases. The specific HSP90β‑JEV binding was confirmed by western blot analysis under non‑reducing conditions, and this was significantly inhibited by an anti‑human HSP90β monoclonal antibody in a dose‑dependent manner, as shown by immunofluorescence assay and flow cytometry. In addition, the results of confocal laser scanning microscopic examination demonstrated that the HSP90β‑JEV binding occurred on the Vero cell surface. Finally, JEV progeny yields determined by plaque assay were also markedly decreased in siRNA‑treated Vero cells, particularly at 24 and 36 h post‑infection. Thus, our data indicate that HSP90β is a binding receptor for JEV in Vero cells.
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Affiliation(s)
- Yuan Wang
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yan Li
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Tianbing Ding
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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HSP90 inhibitors potentiate PGF2α-induced IL-6 synthesis via p38 MAP kinase in osteoblasts. PLoS One 2017; 12:e0177878. [PMID: 28542188 PMCID: PMC5438147 DOI: 10.1371/journal.pone.0177878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 05/04/2017] [Indexed: 11/19/2022] Open
Abstract
Heat shock protein 90 (HSP90) that is ubiquitously expressed in various tissues, is recognized to be a major molecular chaperone. We have previously reported that prostaglandin F2α (PGF2α), a potent bone remodeling mediator, stimulates the synthesis of interleukin-6 (IL-6) through p44/p42 mitogen-activated protein (MAP) kinase and p38 MAP kinase in osteoblast-like MC3T3-E1 cells, and that Rho-kinase acts at a point upstream of p38 MAP kinase. In the present study, we investigated the involvement of HSP90 in the PGF2α-stimulated IL-6 synthesis and the underlying mechanism in MC3T3-E1 cells. Geldanamycin, an inhibitor of HSP90, significantly amplified both the PGF2α-stimulated IL-6 release and the mRNA expression levels. In addition, other HSP90 inhibitors, 17-allylamino-17demethoxy-geldanamycin (17-AAG) and 17-dimethylamino-ethylamino-17-demethoxy-geldanamycin (17-DMAG) and onalespib, enhanced the PGF2α-stimulated IL-6 release. Geldanamycin, 17-AAG and onalespib markedly strengthened the PGF2α-induced phosphorylation of p38 MAP kinase. Geldanamycin and 17-AAG did not affect the PGF2α-induced phosphorylation of p44/p42 MAP kinase and myosin phosphatase targeting subunit (MYPT-1), a substrate of Rho-kinase, and the protein levels of RhoA and Rho-kinase. In addition, HSP90-siRNA enhanced the PGF2α-induced phosphorylation of p38 MAP kinase. Furthermore, SB203580, an inhibitor of p38 MAP kinase, significantly suppressed the amplification by geldanamycin, 17-AAG or 17-DMAG of the PGF2α-stimulated IL-6 release. Our results strongly suggest that HSP90 negatively regulates the PGF2α-stimulated IL-6 synthesis in osteoblasts, and that the effect of HSP90 is exerted through regulating p38 MAP kinase activation.
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38
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Ghadban T, Jessen A, Reeh M, Dibbern JL, Mahner S, Mueller V, Wellner UF, Güngör C, Izbicki JR, Vashist YK. In vitro study comparing the efficacy of the water-soluble HSP90 inhibitors, 17-AEPGA and 17-DMAG, with that of the non‑water-soluble HSP90 inhibitor, 17-AAG, in breast cancer cell lines. Int J Mol Med 2016; 38:1296-302. [PMID: 27498942 DOI: 10.3892/ijmm.2016.2696] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 07/22/2016] [Indexed: 11/05/2022] Open
Abstract
Heat shock protein (HSP)90 has emerged as an important target in cancer therapeutics. Diverse HSP90 inhibitors are under evaluation. The aim of the present study was to investigate the growth inhibitory effects of the newly developed water-soluble HSP90 inhibitors, 17-[2-(Pyrrolidin-1-yl)ethyl]amino-17-demethoxygeldanamycin (17-AEPGA) and 17-dimethylaminoethylamino-17-demethoxygeldanamycin (17-DMAG), compared to that of the non-water-soluble HSP90 inhibitor, 17-allylamino-17-demethoxygeldanamycin (17-AAG). The anti-proliferative effects of the 3 drugs on the human breast cancer cell lines, MCF-7, SKBR-3 and MDA-MB-231, were examined in vitro. In addition, tumor progression factors, including human epidermal growth factor receptor 2 (HER2), epidermal growth factor receptor 1 (EGFR1) and insulin-like growth factor type 1 receptor (IGF1R), as well as apoptotic markers were analysed. We found a time- and dose-dependent effect in all the tested cell lines. The effects of 17-AEPGA and 17-DMAG were equal or superior to those of 17-AAG. The 50% growth inhibition concentration was <2 µM for the water-soluble compounds following 72 h of exposure. The significant inhibition of HER2, EGFR1 and IGF1R protein expression was already evident at the concentration of 1 µM. Apoptosis was examined by caspase-3 and poly(ADP-ribose) polymerase (PARP) assay at the concentration of 1 µM of the inhibitors. HSP70 was upregulated, but HSP27 expression was not affected. Our data indicate that 17-AEPGA and 17-DMAG are highly active in breast cancer cell lines and may help to overcome the delivery issues associated with the use of 17-AAG.
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Affiliation(s)
- Tarik Ghadban
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - André Jessen
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Matthias Reeh
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Judith L Dibbern
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Sven Mahner
- Gynecology Department and Clinic, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Volkmar Mueller
- Gynecology Department and Clinic, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Ulrich F Wellner
- Clinic for Surgery, University Clinic of Schleswig-Holstein, Campus Lübeck, D-23538 Lübeck, Germany
| | - Cenap Güngör
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Jakob R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - Yogesh K Vashist
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
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39
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Koca İ, Özgür A, Er M, Gümüş M, Açikalin Coşkun K, Tutar Y. Design and synthesis of pyrimidinyl acyl thioureas as novel Hsp90 inhibitors in invasive ductal breast cancer and its bone metastasis. Eur J Med Chem 2016; 122:280-290. [PMID: 27376491 DOI: 10.1016/j.ejmech.2016.06.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/14/2016] [Accepted: 06/18/2016] [Indexed: 01/09/2023]
Abstract
Invasive ductal carcinoma is the most common breast malignancies tumors and has tendency to bone metastases. Many oncogenic client proteins involved in formation of metastatic pathways. Stabilization, regulation, and maintenance of these oncogenic client proteins are provided with Heat Shock Protein 90 (Hsp90). Hsp90 perform these processes through its ATP binding and subsequent hydrolysis energy. Therefore, designing Hsp90 inhibitors is a novel cancer treatment method. However, many Hsp90 inhibitors have solubility problems and showed adverse effects in clinical trials. Thus, we designed and synthesized novel pyrimidinyl acyl thiourea derivatives to selectively inhibit Hsp90 alpha in human invasive ductal breast (MCF-7) and human bone osteosarcoma (Saos-2) cell lines. In vitro experiments showed that the compounds inhibited cell proliferation, ATP hydrolysis, and exhibited cytotoxic effect on these cancer cell lines. Further, gene expression was analyzed by microarray studies on MCF-7 cell lines. Several genes that play vital roles in breast cancer pathogenesis displayed altered gene expression in the presence of a selected pyrimidinyl acyl thiourea compound. Molecular docking studies were also performed to determine interaction between Hsp90 ATPase domain and pyrimidinyl acyl thiourea derivatives. The results indicated that the compounds are able to interact with Hsp90 ATP binding pocket and inhibit ATPase function. The designed compounds powerfully inhibit Hsp90 by an average of 1 μM inhibition constant. And further, the compounds perturb Hsp90 N terminal domain proper orientation and ATP may not provide required conformational change for Hsp90 function as evidenced by in silico experiments. Therefore, the designed compounds effectively inhibited both invasive ductal breast carcinoma and bone metastasis. Pyrimidinyl acyl thiourea derivatives may provide a drug template for effective treatment of invasive ductal breast carcinoma and its bone metastasis as well as new therapeutic perspective for drug design.
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Affiliation(s)
- İrfan Koca
- Bozok University, Faculty of Arts and Sciences, Department of Chemistry, Yozgat, Turkey.
| | - Aykut Özgür
- Gaziosmanpaşa University, Faculty of Natural Sciences and Engineering, Department of Bioengineering, Tokat, Turkey
| | - Muhammet Er
- Bozok University, Faculty of Arts and Sciences, Department of Chemistry, Yozgat, Turkey
| | - Mehmet Gümüş
- Bozok University, Faculty of Arts and Sciences, Department of Chemistry, Yozgat, Turkey
| | - Kübra Açikalin Coşkun
- Gaziosmanpaşa University, Faculty of Natural Sciences and Engineering, Department of Bioengineering, Tokat, Turkey
| | - Yusuf Tutar
- Cumhuriyet University, Faculty of Pharmacy, Department of Basic Sciences, Division of Biochemistry, Sivas, Turkey.
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40
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Saito K, Kukita K, Kutomi G, Okuya K, Asanuma H, Tabeya T, Naishiro Y, Yamamoto M, Takahashi H, Torigoe T, Nakai A, Shinomura Y, Hirata K, Sato N, Tamura Y. Heat shock protein 90 associates with Toll-like receptors 7/9 and mediates self-nucleic acid recognition in SLE. Eur J Immunol 2015; 45:2028-41. [PMID: 25871979 DOI: 10.1002/eji.201445293] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 03/26/2015] [Accepted: 04/09/2015] [Indexed: 01/09/2023]
Abstract
Systemic lupus erythematosus (SLE) is a prototype systemic autoimmune disease, and disease activity is associated with serum IFN-α level. Plasmacytoid dendritic cells (pDCs) sense microbial as well as self-nucleic acids by TLRs 7 and 9 and produce a large amount of IFN-α. Here, we show that heat shock protein 90 (Hsp90) associates with and delivers TLR7/9 from the ER to early endosomes for ligand recognition. Inhibition of Hsp90 by various approaches including the use of Hsp90 inhibitor, a geldanamycin derivative, suppressed the Hsp90 association with TLR7/9, which resulted in inhibition of IFN-α production, leading to improvement of SLE symptoms in mice. Notably, we observed that serum Hsp90 is clearly increased in patients with active SLE compared with that in patients with inactive disease. Furthermore, we demonstrated that serum Hsp90 detected in SLE patients binds to self-DNA and/or anti-DNA Ab, thus leading to stimulation of pDCs to produce IFN-α. Our data demonstrate that Hsp90 plays a crucial role in the pathogenesis of SLE and that an Hsp90 inhibitor will therefore provide a new therapeutic approach to SLE and other nucleic acid-related autoimmune diseases.
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Affiliation(s)
- Keita Saito
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan.,Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kazuharu Kukita
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan.,Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Goro Kutomi
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koichi Okuya
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroko Asanuma
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tetsuya Tabeya
- Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yasuka Naishiro
- Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Motohisa Yamamoto
- Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroki Takahashi
- Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Akira Nakai
- Department of Biochemistry and Molecular Biology, Yamaguchi University School of Medicine, Yamaguchi, Japan
| | - Yasuhisa Shinomura
- Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koichi Hirata
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yasuaki Tamura
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan.,Department of Molecular Therapeutics, Center for Food and Medical Innovation, Hokkaido University, Sapporo, Japan
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41
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Unfolding the promise of translational targeting in neurodegenerative disease. Neuromolecular Med 2015; 17:147-57. [PMID: 25697885 DOI: 10.1007/s12017-015-8346-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 02/14/2015] [Indexed: 12/26/2022]
Abstract
With the rise of aging populations, new challenges for health care systems are emerging. Degenerative conditions of the central nervous system share a strikingly great deal of similarities, particularly the production and buildup of malfolded proteins. As a result, stress pathways within the endoplasmic reticulum become activated, triggering widespread neuronal apoptosis. New pharmacological compounds targeting this response are emerging as promising treatment strategies. This review examines the current evidence for protein aggregation in neurodegenerative disease states and discusses future mechanisms of therapeutically targeting the endoplasmic reticulum.
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42
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Hombach A, Ommen G, MacDonald A, Clos J. A small heat shock protein is essential for thermotolerance and intracellular survival of Leishmania donovani. J Cell Sci 2014; 127:4762-73. [PMID: 25179594 PMCID: PMC4215717 DOI: 10.1242/jcs.157297] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Leishmania parasites must survive and proliferate in two vastly different environments – the guts of poikilothermic sandflies and the antigen-presenting cells of homeothermic mammals. The change of temperature during the transmission from sandflies to mammals is both a key trigger for the progression of their life cycle and for elevated synthesis of heat shock proteins, which have been implicated in their survival at higher temperatures. Although the functions of the main heat shock protein families in the Leishmania life cycle have been studied, nothing is known about the roles played by small heat shock proteins. Here, we present the first evidence for the pivotal role played by the Leishmania donovani 23-kDa heat shock protein (which we called HSP23), which is expressed preferentially during the mammalian stage where it assumes a perinuclear localisation. Loss of HSP23 causes increased sensitivity to chemical stressors and renders L. donovani non-viable at 37°C. Consequently, HSP23-null mutants are non-infectious to primary macrophages in vitro. All phenotypic effects could be abrogated by the introduction of a functional HSP23 transgene into the null mutant, confirming the specificity of the mutant phenotype. Thus, HSP23 expression is a prerequisite for L. donovani survival at mammalian host temperatures and a crucial virulence factor.
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Affiliation(s)
- Antje Hombach
- Bernhard Nocht Institute for Tropical Medicine, 20259 Hamburg, Germany
| | - Gabi Ommen
- Bernhard Nocht Institute for Tropical Medicine, 20259 Hamburg, Germany
| | - Andrea MacDonald
- Bernhard Nocht Institute for Tropical Medicine, 20259 Hamburg, Germany
| | - Joachim Clos
- Bernhard Nocht Institute for Tropical Medicine, 20259 Hamburg, Germany
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43
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Eachkoti R, Reddy MVR, Lieu YK, Cosenza SC, Reddy EP. Identification and characterisation of a novel heat shock protein 90 inhibitor ONO4140. Eur J Cancer 2014; 50:1982-92. [PMID: 24835034 DOI: 10.1016/j.ejca.2014.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 03/28/2014] [Accepted: 04/16/2014] [Indexed: 12/26/2022]
Abstract
Heat shock protein (Hsp) 90 is a key component of the super-chaperone complex that maintains functionally active conformation of various client proteins. Many of these client proteins regulate important nodal points in multiple signalling pathways that promote cancer cell growth and survival. Inhibitors of Hsp90, therefore, have the potential of functioning as anti-cancer agents with pleiotropic effects. Identification of novel Hsp90 inhibitors with more favourable pharmacological properties is a priority in cancer therapy. To achieve this goal, we screened a compound library using a biochemical assay based on refolding of denatured firefly luciferase. The assay revealed high sensitivity, reliability and reproducibility with a Z-factor of 0.81 ± 0.17. Six Hsp90 inhibitory compounds identified by this screening with IC50 values between 1.0 and 6 μM were further characterised for anti-proliferative activity by Cell Titer-Blue Cell Viability Assay using multiple tumour cell lines. Of particular interest was ONO4140 with lowest GI50 values in three different cancer cell lines viz; DU-145, BT-474 and K562 cell lines. This study also revealed that short-term exposure of tumour cells with ONO4140 is sufficient to inhibit the catalytic activity of Hsp90, evaluated through disruption of Hsp90-p23 association by immunoprecipitation. This short term exposure appears to initiate events like degradation of Hsp90 client proteins such as ErbB2/Her-2 and Akt with concomitant inhibition of survival signalling leading to the apoptotic death of tumour cells as seen by western blotting and Caspase Glow-3,7 assay. The study also reveals that apoptosis following Hsp90 inhibition with ONO4140 occurs via Caspase9-Caspase3 intrinsic apoptotic pathway, a process that is likely triggered by inactivation of Akt. In conclusion, we have identified a novel class of synthetic compounds which show potent Hsp90 inhibitory action in preclinical studies. The discovery of this novel class of synthetic Hsp90 inhibitors with simple chemical backbone allows us to conduct further structural modifications to improve their potency and pharmacokinetic properties for use in cancer therapy.
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Affiliation(s)
- Rafiqa Eachkoti
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States.
| | - M V Ramana Reddy
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - Yen K Lieu
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - Stephen C Cosenza
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - E PremKumar Reddy
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
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44
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Abstract
SUMMARY Hsp90 (a.k.a. Hsp83) plays a significant role in the life cycle control of the protozoan parasite Leishmania donovani. Rather than protecting Leishmania spp. against adverse and stressful environs, Hsp90 is required for the maintenance of the motile, highly proliferative insect stage, the promastigote. However, Hsp90 is also essential for survival and proliferation of the intracellular mammalian stage, the amastigote. Moreover, recent evidence shows Hsp90 and other components of large multi-chaperone complexes as substrates of stage-specific protein phosphorylation pathways, and thus as likely effectors of the signal transduction pathways in Leishmania spp. Future efforts should be directed towards the identification of the protein kinases and the critical phosphorylation sites as targets for novel therapeutic approaches.
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Luo D, Bu Y, Ma J, Rajput S, He Y, Cai G, Liao DF, Cao D. Heat shock protein 90-α mediates aldo-keto reductase 1B10 (AKR1B10) protein secretion through secretory lysosomes. J Biol Chem 2013; 288:36733-40. [PMID: 24217247 DOI: 10.1074/jbc.m113.514877] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aldo-keto reductase 1B10 (AKR1B10) protein is a new tumor biomarker in humans. Our previous studies have shown that AKR1B10 is secreted through a lysosome-mediated nonclassical pathway, leading to an increase in the serum of breast cancer patients. This study illuminates the regulatory mechanism of AKR1B10 secretion. The cytosolic AKR1B10 associates with and is translocated to lysosomes by heat shock protein 90α (HSP90α), a chaperone molecule. Ectopic expression of HSP90α significantly increased the secretion of endogenous AKR1B10 and exogenous GFP-AKR1B10 fusion protein when cotransfected. Geldanamycin, a HSP90α inhibitor, dissociated AKR1B10-HSP90α complexes and significantly reduced AKR1B10 secretion in a dose-dependent manner. We characterized the functional domain in AKR1B10 and found that helix 10 (amino acids 233-240), located at the C terminus, regulates AKR1B10 secretion. Targeted point mutations recognized that amino acids Lys-233, Glu-236, and Lys-240 in helix 10 mediate the interaction of AKR1B10 with HSP90α. Together, our data suggest that HSP90α mediates AKR1B10 secretion through binding to its helix 10 domain. This finding is significant in exploiting the use of AKR1B10 in cancer clinics.
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Affiliation(s)
- Dixian Luo
- From the Department of Medical Microbiology, Immunology, and Cell Biology, Simmons Cancer Institute, Southern Illinois University School of Medicine, Springfield, Illinois 62794
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Troeger A, Chae HD, Senturk M, Wood J, Williams DA. A unique carboxyl-terminal insert domain in the hematopoietic-specific, GTPase-deficient Rho GTPase RhoH regulates post-translational processing. J Biol Chem 2013; 288:36451-62. [PMID: 24189071 DOI: 10.1074/jbc.m113.505727] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
RhoH is a hematopoietic-specific, GTPase-deficient member of the Rho GTPase family that was first identified as a hypermutable gene in human B lineage lymphomas. RhoH remains in a constitutively active state and thus its effects are regulated by expression levels or post-translational modifications. Similar to other small GTPases, intracellular localization of RhoH is dependent upon the conserved "CAAX" box and surrounding sequences within the carboxyl (C) terminus. However, RhoH also contains a unique C-terminal "insert" domain of yet undetermined function. RhoH serves as adaptor molecule in T cell receptor signaling and RhoH expression correlates with the unfavorable prognostic marker ZAP70 in human chronic lymphocytic leukemia. Disease progression is attenuated in a Rhoh(-/-) mouse model of chronic lymphocytic leukemia and treatment of primary human chronic lymphocytic leukemia cells with Lenalidomide results in reduced RhoH protein levels. Thus, RhoH is a potential therapeutic target in B cell malignancies. In the current studies, we demonstrate that deletion of the insert domain (LFSINE) results in significant cytoplasmic protein accumulation. Using inhibitors of degradation pathways, we show that LFSINE regulates lysosomal RhoH uptake and degradation via chaperone-mediated autophagy. Whereas the C-terminal prenylation site is critical for ZAP70 interaction, subcellular localization and rescue of the Rhoh(-/-) T cell defect in vivo, the insert domain appears dispensable for these functions. Taken together, our findings suggest that the insert domain regulates protein stability and activity without otherwise affecting RhoH function.
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Affiliation(s)
- Anja Troeger
- From the Division of Hematology/Oncology, Boston Children's Hospital and the Dana-Farber Cancer Institute, Boston, Massachusetts 02115
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Alix JH. Targeting HSP70 to Fight Cancer and Bad Bugs: One and the Same Battle? Antibiotics (Basel) 2013. [DOI: 10.1002/9783527659685.ch23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tsou YL, Lin YW, Chang HW, Lin HY, Shao HY, Yu SL, Liu CC, Chitra E, Sia C, Chow YH. Heat shock protein 90: role in enterovirus 71 entry and assembly and potential target for therapy. PLoS One 2013; 8:e77133. [PMID: 24098578 PMCID: PMC3788750 DOI: 10.1371/journal.pone.0077133] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 08/15/2013] [Indexed: 11/18/2022] Open
Abstract
Although several factors participating in enterovirus 71 (EV71) entry and replication had been reported, the precise mechanisms associated with these events are far from clear. In the present study, we showed that heat shock protein 90 (HSP90) is a key element associated with EV71 entry and replication in a human rhabdomyosarcoma of RD cells. Inhibition of HSP90 by pretreating host cells with HSP90β siRNA or blocking HSP90 with a HSP90-specific antibody or geldanamycin (GA), a specific inhibitor of HSP90, as well as recombinant HSP90β resulted in inhibiting viral entry and subsequent viral replication. Co-immunprecipitation of EV71 with recombinant HSP90β and colocalization of EV71-HSP90 in the cells demonstrated that HSP90 was physically associated with EV71 particles. HSP90 seems to mediate EV71 replication by preventing proteosomal degradation of the newly synthesized capsid proteins, but does not facilitate viral gene expression at transcriptional level. This was evident by post-treatment of host cells with GA, which did not affect the expression of viral transcripts but accelerated the degradation of viral capsid proteins and interfered with the formation of assembled virions. In vivo studies were carried out using human SCARB2-transgenic mice to evaluate the protection conferred by HSP90 inhibitor, 17-allyamino-17-demethoxygeldanamycin (17-AAG), an analog of geldanamycin, that elicited similar activity but with less toxicity. The results showed that the administration of 17-AAG twice conferred the resistance to hSCARB2 mice challenged with C2, C4, and B4 genotypes of EV71. Our data supports HSP90 plays an important role in EV71 infection. Targeting of HSP90 with clinically available drugs might provide a feasible therapeutic approach to treat EV71 infection.
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Affiliation(s)
- Yueh-Liang Tsou
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
- Graduate Program of Biotechnology in Medicine, Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Wen Lin
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
- Graduate Program of Biotechnology in Medicine, Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Hsuen-Wen Chang
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Hsiang-Yin Lin
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Hsiao-Yun Shao
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Shu-Ling Yu
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Chia-Chyi Liu
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Ebenezer Chitra
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
| | - Charles Sia
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan
- * E-mail: (YHC); (CS)
| | - Yen-Hung Chow
- Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli, County, Taiwan
- * E-mail: (YHC); (CS)
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Miekus K, Kijowski J, Sekuła M, Majka M. 17AEP-GA, an HSP90 antagonist, is a potent inhibitor of glioblastoma cell proliferation, survival, migration and invasion. Oncol Rep 2012; 28:1903-9. [PMID: 22941268 DOI: 10.3892/or.2012.1996] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 07/02/2012] [Indexed: 11/06/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most frequent and the most malignant human brain tumor. The expression of receptor tyrosine kinase MET and its ligand hepatocyte growth factor (HGF) is strongly increased in GBM, where they promote tumor proliferation, cell survival, migration, invasion and angiogenesis. We used geldanamycins (GAs) (inhibitors of HSP90) in order to block glioblastoma growth and HGF-dependent cell migration and invasion. The effect of GAs on three GBM cell lines was tested and we found their antiproliferative effect on tumor cells. The maximum level of inhibition reached 70%. After treatment with GAs, cells also became apoptotic as determined by Annexin V-positive staining and activation of the caspase-3 pathway. We examined the expression and activity of the MET receptor on GBM cell lines and we observed phosphorylation of AKT and MAPK after HGF stimulation by western blot analysis. Since GBM cells express high level of MET receptor and were shown to respond to HGF by increased motility we tested if GAs could negatively affect GBM cell movement. In our study, we found that GAs inhibited the chemotaxis of glioblastoma cells toward the hepatocyte growth factor gradient. The GAs also blocked migration of tumor cells through a Matrigel layer in invasion assays. The strongest inhibitory effect was observed for GA and its analog, 17AEP-GA. Based on our results, GAs, particularly 17AEP-GA, could be considered as a new potential agent to treat glioblastoma multiforme.
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Affiliation(s)
- Katarzyna Miekus
- Department of Transplantation, Polish-American Institute of Pediatrics, Jagiellonian University School of Medicine, Cracow, Poland.
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Geldanamycin, a ligand of heat shock protein 90, inhibits herpes simplex virus type 2 replication both in vitro and in vivo. J Antibiot (Tokyo) 2012; 65:509-12. [PMID: 22909975 PMCID: PMC7094714 DOI: 10.1038/ja.2012.67] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Previously, we discovered geldanamycin, a ligand of heat shock protein 90, effectively inhibited herpes simplex virus type 1 replication in vitro and in vivo (mouse encephalitis model). In this study, we demonstrate that geldanamycin has very strong activities against herpes simplex virus type 2 in vitro and in vivo (mouse vagina model). In mouse vagina model, administration of geldanamycin suspension to vagina after virus infection protected the infected mice from death and increased the average survival days in a dose-dependent manner. Geldanamycin also significantly reduced virus shedding from mouse vagina. All geldanamycin-treated groups were statistically significant when compared with the infected control group. The high-dose group of geldanamycin (5.72 mg kg−1) was better than acyclovir group (2.86 mg kg−1). All geldanamycin vaginal administration mock-infected groups did not show significant body weight loss. Although geldanamycin has strong antiviral activities against various DNA and RNA viruses, geldanamycin is not suitable for systemic administration because of its high toxicity. We consider that geldanamycin is a candidate of topical usage for the treatment of herpes simplex virus type infections.
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