351
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Narayanankutty V, Narayanankutty A, Nair A. Heat Shock Proteins (HSPs): A Novel Target for Cancer Metastasis Prevention. Curr Drug Targets 2019; 20:727-737. [DOI: 10.2174/1389450120666181211111815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/11/2018] [Accepted: 11/27/2018] [Indexed: 02/08/2023]
Abstract
Background:
Heat shock proteins (HSPs) are predominant molecular chaperones which are
actively involved in the protein folding; which is essential in protecting the structure and functioning
of proteins during various stress conditions. Though HSPs have important physiological roles, they
have been well known for their roles in various pathogenic conditions such as carcinogenesis; however,
limited literature has consolidated its potential as an anti-metastatic drug target.
Objectives:
The present review outlines the role of different HSPs on cancer progression and metastasis;
possible role of HSP inhibitors as anti-neoplastic agents is also discussed.
Methods:
The data were collected from PubMed/Medline and other reputed journal databases. The literature
that was too old and had no significant role to the review was then omitted.
Results:
Despite their strong physiological functions, HSPs are considered as good markers for cancer
prognosis and diagnosis. They have control over survival, proliferation and progression events of cancer
including drug resistance, metastasis, and angiogenesis. Since, neoplastic cells are more dependent
on HSPs for survival and proliferation, the selectivity and specificity of HSP-targeted cancer drugs
remain high. This has made various HSPs potential clinical and experimental targets for cancer prevention.
An array of HSP inhibitors has been in trials and many others are in experimental conditions
as anticancer and anti-metastatic agents. Several natural products are also being investigated for their
efficacy for anticancer and anti-metastatic agents by modulating HSPs.
Conclusion:
Apart from their role as an anticancer drug target, HSPs have shown to be promising targets
for the prevention of cancer progression. Extensive studies are required for the use of these molecules
as anti-metastatic agents. Further studies in this line may yield specific and effective antimetastatic
agents.
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Affiliation(s)
| | - Arunaksharan Narayanankutty
- Postgraduate & Research Department of Zoology, St. Joseph’s College, Devagiri (Autonomous), Calicut, Kerala- 673 008, India
| | - Anusree Nair
- Cell and Tissue Culture Department, Micro labs, Bangalore, India
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352
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Lassche G, Crezee J, Van Herpen CML. Whole-body hyperthermia in combination with systemic therapy in advanced solid malignancies. Crit Rev Oncol Hematol 2019; 139:67-74. [PMID: 31112883 DOI: 10.1016/j.critrevonc.2019.04.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/03/2019] [Accepted: 04/26/2019] [Indexed: 01/20/2023] Open
Abstract
Whole-body hyperthermia (WBH) might be beneficial for patients with metastasized solid malignancies when combined with systemic therapy. This review identified and summarized the phase I/II studies (n = 13/14) conducted using this combination of therapies. Most of the phase II studies used radiant heating methods in a thermal dose of 41.8 °C (1 h). All studies used classic chemotherapy. Great inter-study heterogeneity was observed regarding treatment regimes, included patients and reported response rates (12-89%). Ovarian cancer, colorectal adenocarcinoma, lung cancer and sarcoma have been studied most. Most reported toxicity (grade 3/4) was myelosuppression. Treatment related mortality was present (4 patients) in three out 14 phase II studies (350 evaluable patients, over 966 cycles of WBH with chemotherapy). Absence of phase III trials makes the additive value of WBH highly speculative. As modern oncology offers many less invasive treatments options, it is unlikely WBH will ever find its way in routine clinical care.
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Affiliation(s)
- G Lassche
- Department of medical oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J Crezee
- Department of radiation oncology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - C M L Van Herpen
- Department of medical oncology, Radboud University Medical Center, Nijmegen, The Netherlands.
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353
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Hsp27 Responds to and Facilitates Enterovirus A71 Replication by Enhancing Viral Internal Ribosome Entry Site-Mediated Translation. J Virol 2019; 93:JVI.02322-18. [PMID: 30814282 PMCID: PMC6475798 DOI: 10.1128/jvi.02322-18] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 02/19/2019] [Indexed: 12/12/2022] Open
Abstract
Outbreaks of infections with EV-A71, which causes hand, foot, and mouth disease, severe neurological disorders, and even death, have been repeatedly reported worldwide in recent decades and are a great public health problem for which no approved treatments are available. We show that Hsp27, a heat shock protein, supports EV-A71 infection in two distinct ways to promote viral IRES-dependent translation. A small-molecule Hsp27 inhibitor isolated from a traditional Chinese medicinal herb effectively reduces virus yields. Together, our findings demonstrate that Hsp27 plays an important role in EV-A71 infection and may serve as an antiviral target. Enterovirus 71 (EV-A71) is a human pathogen that causes hand, foot, and mouth disease (HFMD) and fatal neurological diseases, and no effective treatment is available. Characterization of key host factors is important for understanding its pathogenesis and developing antiviral drugs. Here we report that Hsp27 is one of the most upregulated proteins in response to EV-A71 infection, as revealed by two-dimensional gel electrophoresis-based proteomics studies. Depletion of Hsp27 by small interfering RNA or CRISPR/Cas9-mediated knockout significantly inhibited viral replication, protein expression, and reproduction, while restoration of Hsp27 restored such virus activities. Furthermore, we show that Hsp27 plays a crucial role in regulating viral internal ribosome entry site (IRES) activities by two different mechanisms. Hsp27 markedly promoted 2Apro-mediated eukaryotic initiation factor 4G cleavage, an important process for selecting and initiating IRES-mediated translation. hnRNP A1 is a key IRES trans-acting factor (ITAF) for enhancing IRES-mediated translation. Surprisingly, knockout of Hsp27 differentially blocked hnRNP A1 but not FBP1 translocation from the nucleus to the cytoplasm and therefore abolished the hnRNP A1 interaction with IRES. Most importantly, the Hsp27 inhibitor 1,3,5-trihydroxy-13,13-dimethyl-2H-pyran [7,6-b] xanthone (TDP), a compound isolated from a traditional Chinese herb, significantly protected against cytopathic effects and inhibited EV-A71 infection. Collectively, our results demonstrate new functions of Hsp27 in facilitating virus infection and provide novel options for combating EV-A71 infection by targeting Hsp27. IMPORTANCE Outbreaks of infections with EV-A71, which causes hand, foot, and mouth disease, severe neurological disorders, and even death, have been repeatedly reported worldwide in recent decades and are a great public health problem for which no approved treatments are available. We show that Hsp27, a heat shock protein, supports EV-A71 infection in two distinct ways to promote viral IRES-dependent translation. A small-molecule Hsp27 inhibitor isolated from a traditional Chinese medicinal herb effectively reduces virus yields. Together, our findings demonstrate that Hsp27 plays an important role in EV-A71 infection and may serve as an antiviral target.
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354
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Rath NC, Gupta A, Liyanage R, Lay JO. Phorbol 12-Myristate 13-Acetate-Induced Changes in Chicken Enterocytes. PROTEOMICS INSIGHTS 2019; 10:1178641819840369. [PMID: 31019367 PMCID: PMC6463336 DOI: 10.1177/1178641819840369] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 02/26/2019] [Indexed: 12/29/2022]
Abstract
Increased intestinal epithelial permeability has been linked to many enteric diseases because it allows easy access of microbial pathogens and toxins into the system. In poultry production, the restrictions in the use of antibiotic growth promoters have increased the chances of birds being susceptible to different enteric diseases. Thus, understanding the mechanisms which compromise intestinal function is pertinent. Based on our previous observation which showed the primary chicken enterocytes in culture undergoing dystrophic changes on treatment with phorbol myristate acetate (PMA), we surmised that this model, which appeared to mimic increased intestinal permeability, may help to understand the mechanisms of this problem. As genomic and proteomic changes are associated with many physiological and pathological problems, we were interested to find whether certain proteomic changes underlie the morphological alterations in the enterocytes induced by PMA. We exposed primary enterocyte cultures to a sub-lethal concentration of PMA, extracted the proteins, and analyzed by mass spectrometry for differentially regulated proteins. Our results showed that PMA affected several biological processes which negatively affected their energy metabolism, nuclear activities, and differentially regulated the levels of several stress proteins, chaperon, cytoskeletal, and signal transduction proteins that appear to be relevant in the cause of enterocyte dystrophy. Phorbol myristate acetate-affected signal transduction activities also raise the possibilities of their increased susceptibility to pathogens. The changes in enterocyte integrity can make intestine vulnerable to invasion by microbial pathogens and disrupt gut homeostasis.
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Affiliation(s)
- Narayan C Rath
- USDA, Agricultural Research Service, Poultry Science Center, University of Arkansas, Fayetteville, AR, USA
| | - Anamika Gupta
- Department of Poultry Science, Poultry Science Center, University of Arkansas, Fayetteville, AR, USA
| | - Rohana Liyanage
- Statewide Mass Spectrometry Facility, Department of Chemistry Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Jackson O Lay
- Statewide Mass Spectrometry Facility, Department of Chemistry Biochemistry, University of Arkansas, Fayetteville, AR, USA
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355
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Fishelson Z, Kirschfink M. Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention. Front Immunol 2019; 10:752. [PMID: 31024572 PMCID: PMC6467965 DOI: 10.3389/fimmu.2019.00752] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 03/20/2019] [Indexed: 01/14/2023] Open
Abstract
The interactions of cancer cells with components of the complement system are highly complex, leading to an outcome that is either favorable or detrimental to cancer cells. Currently, we perceive only the "tip of the iceberg" of these interactions. In this review, we focus on the complement terminal C5b-9 complex, known also as the complement membrane attack complex (MAC) and discuss the complexity of its interaction with cancer cells, starting with a discussion of its proposed mode of action in mediating cell death, and continuing with a portrayal of the strategies of evasion exhibited by cancer cells, and closing with a proposal of treatment approaches targeted at evasion strategies. Upon intense complement activation and membrane insertion of sufficient C5b-9 complexes, the afflicted cells undergo regulated necrotic cell death with characteristic damage to intracellular organelles, including mitochondria, and perforation of the plasma membrane. Several pro-lytic factors have been proposed, including elevated intracellular calcium ion concentrations and activated JNK, Bid, RIPK1, RIPK3, and MLKL; however, further research is required to fully characterize the effective cell death signals activated by the C5b-9 complexes. Cancer cells over-express a multitude of protective measures which either block complement activation, thus reducing the number of membrane-inserted C5b-9 complexes, or facilitate the elimination of C5b-9 from the cell surface. Concomitantly, cancer cells activate several protective pathways that counteract the death signals. Blockage of complement activation is mediated by the complement membrane regulatory proteins CD46, CD55, and CD59 and by soluble complement regulators, by proteases that cleave complement proteins and by protein kinases, like CK2, which phosphorylate complement proteins. C5b-9 elimination and inhibition of cell death signals are mediated by caveolin and dynamin, by Hsp70 and Hsp90, by the mitochondrial stress protein mortalin, and by the protein kinases PKC and ERK. It is conceivable that various cancers and cancers at different stages of development will utilize distinct patterns of these and other MAC resistance strategies. In order to enhance the impact of antibody-based therapy on cancer, novel precise reagents that block the most effective protective strategies will have to be designed and applied as adjuvants to the therapeutic antibodies.
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Affiliation(s)
- Zvi Fishelson
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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356
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Zhao J, Feng M, Liu D, Liu H, Shi M, Zhang J, Qu J. Antagonism between HTRA3 and TGFβ1 Contributes to Metastasis in Non-Small Cell Lung Cancer. Cancer Res 2019; 79:2853-2864. [PMID: 30940659 DOI: 10.1158/0008-5472.can-18-2507] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 01/02/2019] [Accepted: 03/29/2019] [Indexed: 11/16/2022]
Abstract
High temperature requirement A3 (HTRA3, long and short isoforms) is a member of the HtrA family and has been implicated as a tumor suppressor in cancer progression in multiple cancer types, yet its molecular functions in non-small cell lung cancer (NSCLC) are not well understood. Here, we report that decreased levels of HTRA3 negatively correlate with elevated TGFβ1 in lung tumor tissue with metastasis. Furthermore, high expression of HTRA3 indicated better prognosis independent of TGFβ1 expression. In NSCLC cell lines, exogenous TGFβ1 significantly downregulated the level of HTRA3, especially the long isoform, during induction of epithelial-mesenchymal transition (EMT). Mechanistically, c-Jun, which is elevated by TGFβ1, directly bound the promoter of HTRA3-L and inhibited its transcription. As a negative feedback loop, overexpression of HTRA3-L attenuated TGFβ1-mediated invasion-metastasis cascades via activation of SMAD2/3 and sensitized cells to anti-PD-L1 treatment. Taken together, our findings suggest that in the early stages of cancer, overexpressed HTRA3 acts as a brake on the oncogenic effects of TGFβ1 and inhibits tumor metastasis. In later stages, the role of HTRA3 is weakened and TGFβ1 efficiently promotes EMT in the absence of the HTRA3 brake. SIGNIFICANCE: This study provides new mechanistic insight of the interaction between HTRA3 and TGFβ in lung cancer by illustrating that HTRA3 is a novel mediator acting as a suppressor of TGFβ1-related oncogenic effects.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/metabolism
- Adenocarcinoma/secondary
- Adult
- Aged
- Aged, 80 and over
- Animals
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/secondary
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/secondary
- Cell Movement
- Cell Proliferation
- Epithelial-Mesenchymal Transition
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Male
- Mice
- Mice, Inbred BALB C
- Middle Aged
- Prognosis
- Serine Endopeptidases/genetics
- Serine Endopeptidases/metabolism
- Smad2 Protein/genetics
- Smad2 Protein/metabolism
- Survival Rate
- Transforming Growth Factor beta1/genetics
- Transforming Growth Factor beta1/metabolism
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Jingya Zhao
- Department of Pulmonary and Critical Care Medicine, Institute of Respiratory Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Department of Pulmonary Medicine, Huadong Hospital, Fudan University, Shanghai, China
| | - Mingxiang Feng
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dong Liu
- Department of Pulmonary and Critical Care Medicine, Institute of Respiratory Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Haixia Liu
- Department of Pulmonary Medicine, Huadong Hospital, Fudan University, Shanghai, China
| | - Mengmeng Shi
- Department of Pulmonary and Critical Care Medicine, Institute of Respiratory Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jing Zhang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jieming Qu
- Department of Pulmonary and Critical Care Medicine, Institute of Respiratory Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
- Department of Pulmonary Medicine, Huadong Hospital, Fudan University, Shanghai, China
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357
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Yao H, Xu F, Wang G, Xie S, Li W, Yao H, Ma C, Zhu Z, Xu J, Xu S. Design, synthesis, and biological evaluation of truncated deguelin derivatives as Hsp90 inhibitors. Eur J Med Chem 2019; 167:485-498. [DOI: 10.1016/j.ejmech.2019.02.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/24/2019] [Accepted: 02/04/2019] [Indexed: 12/12/2022]
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358
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Zhong M, Lee GM, Sijbesma E, Ottmann C, Arkin MR. Modulating protein-protein interaction networks in protein homeostasis. Curr Opin Chem Biol 2019; 50:55-65. [PMID: 30913483 DOI: 10.1016/j.cbpa.2019.02.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/06/2019] [Accepted: 02/09/2019] [Indexed: 12/12/2022]
Abstract
Protein-protein interactions (PPIs) occur in complex networks. These networks are highly dependent on cellular context and can be extensively altered in disease states such as cancer and viral infection. In recent years, there has been significant progress in developing inhibitors that target individual PPIs either orthosterically (at the interface) or allosterically. These molecules can now be used as tools to dissect PPI networks. Here, we review recent examples that highlight the use of small molecules and engineered proteins to probe PPIs within the complex networks that regulate protein homeostasis. Researchers have discovered multiple mechanisms to modulate PPIs involved in host/viral interactions, deubiquitinases, the ATPase p97/VCP, and HSP70 chaperones. However, few studies have evaluated the effect of such modulators on the target's network or have compared the biological implications of different modulation strategies. Such studies will have an important impact on next generation therapeutics.
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Affiliation(s)
- Mengqi Zhong
- Department of Pharmaceutical Chemistry and the Small Molecule Discovery Center, University of California, San Francisco, CA, USA
| | - Gregory M Lee
- Department of Pharmaceutical Chemistry and the Small Molecule Discovery Center, University of California, San Francisco, CA, USA
| | - Eline Sijbesma
- Department of Biomedical Engineering, Laboratory of Chemical Biology, and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Christian Ottmann
- Department of Biomedical Engineering, Laboratory of Chemical Biology, and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Michelle R Arkin
- Department of Pharmaceutical Chemistry and the Small Molecule Discovery Center, University of California, San Francisco, CA, USA.
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359
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Roehrer S, Stork V, Ludwig C, Minceva M, Behr J. Analyzing bioactive effects of the minor hop compound xanthohumol C on human breast cancer cells using quantitative proteomics. PLoS One 2019; 14:e0213469. [PMID: 30875365 PMCID: PMC6420031 DOI: 10.1371/journal.pone.0213469] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 02/21/2019] [Indexed: 02/07/2023] Open
Abstract
Minor prenylated hop compounds have been attracting increasing attention due to their promising anticarcinogenic properties. Even after intensive purification from natural raw extracts, allocating certain activities to single compounds or complex interactions of the main compound with remaining impurities in very low concentration is difficult. In this study, dose-dependent antiproliferative and cytotoxic effects of the promising xanthohumol (XN) analogue xanthohumol C (XNC) were evaluated and compared to XN and a XN-enriched hop extract (XF). It was demonstrated that the cell growth inhibition of human breast cancer cell line (MCF-7) significantly increases after being treated with XNC compared to XN and XF. Based on label-free data-dependent acquisition proteomics, physiological influences on the proteome of MCF-7 cells were analyzed. Different modes of action between XNC and XN treated MCF-7 cells could be postulated. XNC causes ER stress and seems to be involved in cell-cell adhesion, whereas XN influences cell cycles and DNA replication as well as type I interferon signaling pathway. The results demonstrate the utility of using quantitative proteomics for bioactivity screenings of minor hop compounds and underscore the importance of isolating highly pure compounds into their distinct forms to analyze their different and possibly synergistic activities and modes of action.
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Affiliation(s)
- Simon Roehrer
- Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Verena Stork
- Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Christina Ludwig
- Bavarian Center for Biomolecular Mass Spectrometry, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Mirjana Minceva
- Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Jürgen Behr
- Bavarian Center for Biomolecular Mass Spectrometry, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, Germany
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360
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Impeding the single-strand annealing pathway of DNA double-strand break repair by withaferin A-mediated FANCA degradation. DNA Repair (Amst) 2019; 77:10-17. [PMID: 30844655 DOI: 10.1016/j.dnarep.2019.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/13/2019] [Accepted: 02/20/2019] [Indexed: 12/18/2022]
Abstract
FANCA is a key player in the canonical Fanconi anemia (FA) repair pathway. We have recently shown that FANCA also plays an important role in the single-strand annealing sub-pathway (SSA) of DNA double-strand break (DSB) repair by biochemically catalyzing single-strand annealing. Here, we report that a steroidal lactone withaferin A (WA) specifically impedes SSA repair by promoting FANCA downregulation at a sub-micromolar concentration range. We find that WA causes FANCA downregulation post-translationally in a proteasome-dependent manner. This WA-mediated downregulation is achieved through HSP90 inhibition and disruption of the FANCA-HSP90 interaction. WA-mediated FANCA degradation significantly reduces cellular SSA repair, abolishes FANCD2 monoubiquitination, elevates sensitivity to mitomycin C, and results in accumulation of DSBs. Importantly, the WA-induced defect in SSA repair is highly dependent on the absence of FANCA protein and overexpression of exogenous WT-FANCA protein in WA-treated cells significantly complements the repair defect.
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361
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Söderström HK, Kauppi JT, Oksala N, Paavonen T, Krogerus L, Räsänen J, Rantanen T. Overexpression of HSP27 and HSP70 is associated with decreased survival among patients with esophageal adenocarcinoma. World J Clin Cases 2019; 7:260-269. [PMID: 30746368 PMCID: PMC6369396 DOI: 10.12998/wjcc.v7.i3.260] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/21/2018] [Accepted: 12/30/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Overexpression of heat shock proteins (HSPs) is associated with several malignancies and contributes to the development, progression, and metastasis of cancer, in addition to the inhibition of cellular death. In recent years, there has been active research into using HSP inhibitors in several malignancies. Due to the poor prognosis of esophageal adenocarcinoma (EAC), it would be valuable to find new biomarkers for the development of cancer treatments.
AIM To evaluate the expressions of HSP27 and HSP70 and their effect on survival in EAC.
METHODS Immunohistochemical analyses and evaluations of HSP27 and HSP70 expression were performed on all available samples from 93 patients diagnosed with EAC between 1990 and 2007 at two university hospitals. Fifteen cases with Barrett’s metaplasia and 5 control cases from the same patient population were included in the analysis. HSP expression was quantitatively assessed and classified as high or low. Kaplan-Meier analyses and Cox regression models adjusting for age and sex as well as tumor site, stage, and grade were used to evaluate the effect on survival.
RESULTS Tumor stage and surgical treatment were the main prognostic factors. High HSP27 expression in cancer cases was a strong negative predictive factor, with a mean survival of 23 mo compared to the 49 mo in cases with a low expression (P = 0.018). The results were similar for HSP70, with a poorer survival of 17 mo in cases with high HSP70 expression, in contrast to 40 mo (P = 0.006) in cases with a low expression. A Cox regression survival analysis was performed, adjusting for possible confounding factors, and higher HSP27 and HSP70 expressions remained an independent negative prognostic factor. The HSPs’ correlation with survival was not affected by cancer treatments. When the analysis was adjusted for all factors, the odds ratios for HSP27 and HSP70 were 3.3 (CI: 1.6–6.6, P = 0.001) and 2.2 (CI: 1.2–3.9, P = 0.02), respectively.
CONCLUSION HSP27 and HSP70 overexpression is associated with poor survival in EAC, which is, to the best of our knowledge, reported for the first time.
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Affiliation(s)
- Henna K Söderström
- Department of General Thoracic Surgery, Helsinki University Central Hospital, Helsinki 00029, Finland
| | - Juha T Kauppi
- Department of General Thoracic Surgery, Helsinki University Central Hospital, Helsinki 00029, Finland
| | - Niku Oksala
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere 33014, Finland
- Department of Vascular Surgery, Tampere University Hospital, Tampere 33520, Finland
| | - Timo Paavonen
- Department of Pathology, Fimlab Laboratories and Department of Medicine and Life Sciences, University of Tampere, Tampere 33520, Finland
| | - Leena Krogerus
- Department of Pathology, Helsinki University Central Hospital, 00029 Helsinki 00029, Finland
| | - Jari Räsänen
- Department of General Thoracic Surgery, Helsinki University Central Hospital, Helsinki 00029, Finland
| | - Tuomo Rantanen
- Department of Surgery, Kuopio University Hospital, Kuopio 70029, Finland
- Department of Surgery, Institute of Clinical Medicine, University of Eastern Finland, Kuopio 70029, Finland
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362
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Strangers in strange lands: mitochondrial proteins found at extra-mitochondrial locations. Biochem J 2019; 476:25-37. [DOI: 10.1042/bcj20180473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 11/23/2018] [Accepted: 11/27/2018] [Indexed: 12/18/2022]
Abstract
Abstract
The mitochondrial proteome is estimated to contain ∼1100 proteins, the vast majority of which are nuclear-encoded, with only 13 proteins encoded by the mitochondrial genome. The import of these nuclear-encoded proteins into mitochondria was widely believed to be unidirectional, but recent discoveries have revealed that many these ‘mitochondrial’ proteins are exported, and have extra-mitochondrial activities divergent from their mitochondrial function. Surprisingly, three of the exported proteins discovered thus far are mitochondrially encoded and have significantly different extra-mitochondrial roles than those performed within the mitochondrion. In this review, we will detail the wide variety of proteins once thought to only reside within mitochondria, but now known to ‘emigrate’ from mitochondria in order to attain ‘dual citizenship’, present both within mitochondria and elsewhere.
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363
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Kaur J, Bhardwaj A, Melancon BJ, Blagg BSJ. The succinct synthesis of AT13387, a clinically relevant Hsp90 inhibitor. SYNTHETIC COMMUN 2019; 49:1436-1443. [PMID: 33093687 DOI: 10.1080/00397911.2019.1602654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AT13387 is an orally bioavailable clinical candidate developed to inhibit theheat shock protein 90 (Hsp90). This article describes a modified synthetic route for the multi-gram production of AT13387 in 46% overall yield. The modified synthetic route is short, avoids stringent reaction conditions and difficult purifications, which led to increase in an overall yield.
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Affiliation(s)
- Jatinder Kaur
- Warren Family Research Center for Drug Discovery and Development, Department of Chemistry and Biochemistry,University of Notre Dame, Notre Dame, Indiana, USA
| | - Atul Bhardwaj
- Warren Family Research Center for Drug Discovery and Development, Department of Chemistry and Biochemistry,University of Notre Dame, Notre Dame, Indiana, USA
| | - Bruce J Melancon
- Warren Family Research Center for Drug Discovery and Development, Department of Chemistry and Biochemistry,University of Notre Dame, Notre Dame, Indiana, USA
| | - Brian S J Blagg
- Warren Family Research Center for Drug Discovery and Development, Department of Chemistry and Biochemistry,University of Notre Dame, Notre Dame, Indiana, USA
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364
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Leja-Szpak A, Góralska M, Link-Lenczowski P, Czech U, Nawrot-Porąbka K, Bonior J, Jaworek J. The Opposite Effect of L-kynurenine and Ahr Inhibitor Ch223191 on Apoptotic Protein Expression in Pancreatic Carcinoma Cells (Panc-1). Anticancer Agents Med Chem 2019; 19:2079-2090. [PMID: 30987575 DOI: 10.2174/1871520619666190415165212] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/08/2019] [Accepted: 03/28/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND L-kynurenine, derivate of L-tryptophan, is synthetized by indoleamine 2,3-dioxygenase (IDO). The effects of L-kynurenine depend on its binding to an aryl hydrocarbon receptor (AhR). OBJECTIVE The aim of this study was to investigate the changes within the apoptotic pathway in PANC-1 cells subjected to L-kynurenine or L-tryptophan considering the production of anti-apoptotic proteins from the IAPs and Bcl-2 family, as well as the regulation of NF-κB signaling. METHODS The investigated substances were added alone or in combination with the AhR inhibitor (CH223191) to cultures of PANC-1 cells. Cytoplasmic and nuclear proteins were analyzed by immunoblotting and cells were incubated with the investigated substances to determine cytotoxicity and proliferative effects. RESULTS Incubation of PANC-1 cells with L-kynurenine or L-tryptophan resulted in the increase in antiapoptotic cIAP-1, cIAP-2, XIAP and Bcl-2 expression and a decrease in pro-apoptotic Bax. These changes were accompanied by the reduction of active caspases -9, -3 and PARP-1. The treatment leads to translocation and enhanced production of nuclear NF-κB p50 and Bcl-3. Incubation of the cells with AhR blocker either alone or together with L-kynurenine or L-tryptophan resulted in the opposite effect, leading to the downregulation of IAPs and Bcl-2, upregulation of Bax and caspases expression. CONCLUSION 1) L-kynurenine and its precursor promote anti-apoptotic effects through the modulation of IDOdependent pathway and regulation of IAPs, Bcl-2 and NF-κB family members in pancreatic carcinoma cells 2) inhibition of AhR by CH223191 exerts an apoptosis-promoting effect, and this observation might suggest the potential use of this compound in pancreatic cancer therapy.
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Affiliation(s)
- Anna Leja-Szpak
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Marta Góralska
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Paweł Link-Lenczowski
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Urszula Czech
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Nawrot-Porąbka
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Joanna Bonior
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Jolanta Jaworek
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
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365
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Galigniana MD. HSP90-Based Heterocomplex as Essential Regulator for Cancer Disease. HEAT SHOCK PROTEINS 2019:19-45. [DOI: 10.1007/978-3-030-23158-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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366
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Xiong J, Wang S, Chen T, Shu X, Mo X, Chang G, Chen JJ, Li C, Luo H, Lee JD. Verteporfin blocks Clusterin which is required for survival of gastric cancer stem cell by modulating HSP90 function. Int J Biol Sci 2019; 15:312-324. [PMID: 30745823 PMCID: PMC6367548 DOI: 10.7150/ijbs.29135] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/11/2018] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer stem cell (GCSC) is implicated in gastric cancer relapse, metastasis and drug resistance. However, the key molecule(s) involved in GCSC survival and the targeting drugs are poorly understood. We discovered increased secreted clusterin (S-Clu) protein expression during the sphere-forming growth of GCSC via mass spectrometry. Overexpression of clusterin was detected in 69/90 (77%) of primary GC tissues and significantly associated with T stage, lymph node metastasis and TNM stage. Depletion of clusterin (Clu, the full-length intracellular clusterin) led to the declustering of GCSC tumorspheres and apoptosis of GCSC. Subsequently, we found clusterin was in complex with heat shock protein 90 beta (HSP90) and involved in regulating the cellular level of HSP90 client proteins. Furthermore, by screening a collection of drugs/inhibitors, we found that verteporfin (VP), a phototherapy drug, blocked clusterin gene expression, decreased the HSP90 client proteins and caused cell death of GCSC. VP treatment is more effective in eradicating GCSCs than in killing GC cells. Both clusterin silencing or VP treatment deterred tumor growth in human GCSC xenografts. These findings collectively suggest that GC patients can promptly benefit from clusterin-targeted therapy as well as VP treatment in combination with or subsequent to conventional chemotherapy for reducing mortality of GC.
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Affiliation(s)
- Jixian Xiong
- School of Medicine, Shenzhen University, Shenzhen 518055, China.,Shenzhen University International Cancer Center, Shenzhen University, Shenzhen 518055, China
| | - Shaoxiang Wang
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Tie Chen
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Xingsheng Shu
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Xianming Mo
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Gang Chang
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Jia-Jie Chen
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Chenyang Li
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Hui Luo
- School of Medicine, Shenzhen University, Shenzhen 518055, China
| | - Jiing-Dwan Lee
- School of Medicine, Shenzhen University, Shenzhen 518055, China
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367
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Lei YMM, Jianquan ZMD, Jianguo SMM, Hang ZMM, Zongping DMM, Jianming ZP. The Significance of Heat Shock Protein 70 Expression in Benign Thyroid Nodules During Thermal Ablation. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2019. [DOI: 10.37015/audt.2019.190817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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368
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Augello G, Emma MR, Cusimano A, Azzolina A, Mongiovì S, Puleio R, Cassata G, Gulino A, Belmonte B, Gramignoli R, Strom SC, McCubrey JA, Montalto G, Cervello M. Targeting HSP90 with the small molecule inhibitor AUY922 (luminespib) as a treatment strategy against hepatocellular carcinoma. Int J Cancer 2018; 144:2613-2624. [DOI: 10.1002/ijc.31963] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/24/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Giuseppa Augello
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
| | - Maria Rita Emma
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
| | - Antonella Cusimano
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
| | - Antonina Azzolina
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
| | - Sarah Mongiovì
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
| | - Roberto Puleio
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”Histopathology and Immunohistochemistry Laboratory Palermo Italy
| | - Giovanni Cassata
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”Histopathology and Immunohistochemistry Laboratory Palermo Italy
| | - Alessandro Gulino
- Tumor Immunology Unit, Department of Health ScienceUniversity of Palermo Palermo Italy
| | - Beatrice Belmonte
- Tumor Immunology Unit, Department of Health ScienceUniversity of Palermo Palermo Italy
| | - Roberto Gramignoli
- Division of Pathology, Department of Laboratory MedicineKarolinska Institutet Stockholm Sweden
| | - Stephen C. Strom
- Division of Pathology, Department of Laboratory MedicineKarolinska Institutet Stockholm Sweden
| | - James A. McCubrey
- Department of Microbiology and ImmunologyBrody School of Medicine at East Carolina University Greenville North Carolina USA
| | - Giuseppe Montalto
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
- Biomedic Department of Internal Medicine and SpecialtiesUniversity of Palermo Palermo Italy
| | - Melchiorre Cervello
- Institute of Biomedicine and Molecular Immunology “Alberto Monroy”National Research Council (CNR) Palermo Italy
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369
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Chan WC, Koide K. Total Synthesis of the Reported Structure of Stresgenin B Enabled by the Diastereoselective Cyanation of an Oxocarbenium. Org Lett 2018; 20:7798-7802. [PMID: 30525686 DOI: 10.1021/acs.orglett.8b03219] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the first total synthesis of the reported structure of the heat shock protein expression inhibitor stresgenin B. The synthesis features (1) diastereoselective cyanation of an oxocarbenium intermediate en route to the synthetically challenging α-amido dioxolane, (2) Pd-catalyzed hydration of an unstable nitrile, and (3) late-stage Au-catalyzed Meyer-Schuster rearrangement or Ce-mediated Peterson olefination to furnish the exocyclic α,β-unsaturated ester. Our synthetic endeavors allowed us to conclude that the structure of stresgenin B requires revision.
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Affiliation(s)
- Wei Chuen Chan
- Department of Chemistry , University of Pittsburgh , 219 Parkman Avenue , Pittsburgh , Pennsylvania 15260 , United States
| | - Kazunori Koide
- Department of Chemistry , University of Pittsburgh , 219 Parkman Avenue , Pittsburgh , Pennsylvania 15260 , United States
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370
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Jaroszyński A, Jaroszyńska A, Zaborowski T, Drelich-Zbroja A, Zapolski T, Dąbrowski W. Serum heat shock protein 27 levels predict cardiac mortality in hemodialysis patients. BMC Nephrol 2018; 19:359. [PMID: 30558560 PMCID: PMC6296132 DOI: 10.1186/s12882-018-1157-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 11/28/2018] [Indexed: 12/16/2022] Open
Abstract
Background Decreased heat shock protein 27 (HSP27) participates in many processes that are involved in cardiovascular (CV) disease. The objective of the study was to evaluate if HSP27 level was predictive of mortality as well as to evaluate factors associated with HSP27 level in a group of patients treated with HD. Methods Enrolled to the study were 202 HD patients. Clinical data, biochemical, echocardiographic, and carotid atherosclerosis parameters were evaluated. Patients were splited into groups on the basis of the cut-off lower and higher 50th percentile of serum HSP27 levels, and were followed-up for 28.68 ± 6.12 months. Results No significant difference was observed between serum HSP27 levels in patients and controls. Low HSP27 patients were older, had higher left ventricular mass index, lower ejection fraction, higher prevalence of diabetes, myocardial infarction and carotid atherosclerosis, higher C-reactive protein level, and worse oxidant/antioxidant status. The multiple regression analysis identified that HSP27 levels were independently, negatively associated with serum oxidized LDL and the number of carotid plaques. Using the Kaplan–Meier analysis it was shown that the cumulative incidences of both CV and sudden cardiac death (SCD) mortality were higher in low HSP27 group in comparison with high serum HSP27 group. A multivariate Cox analysis showed that HSP27 level is an independent and strong predictor of CV as well as SCD mortality. Conclusions Low serum HSP27 level is independently associated with both CV and SCD mortality but not with all-cause mortality. Low serum HSP27 level is associated with carotid atherosclerosis and oxidative stress.
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Affiliation(s)
- Andrzej Jaroszyński
- Institute of Medical Sciences, Jan Kochanowski University in Kielce, Al. IX Wieków Kielc 19A, 25-317, Kielce, Poland.
| | - Anna Jaroszyńska
- Institute of Medical Sciences, Jan Kochanowski University in Kielce, Al. IX Wieków Kielc 19A, 25-317, Kielce, Poland
| | - Tomasz Zaborowski
- Department of Family Medicine, Medical University of Lublin, Lublin, Poland
| | - Anna Drelich-Zbroja
- Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Lublin, Poland
| | - Tomasz Zapolski
- Department of Cardiology, Medical University of Lublin, Lublin, Poland
| | - Wojciech Dąbrowski
- Department of Anesthesiology and Intensive Care, Medical University of Lublin, Lublin, Poland
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371
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Saraei R, Marofi F, Naimi A, Talebi M, Ghaebi M, Javan N, Salimi O, Hassanzadeh A. Leukemia therapy by flavonoids: Future and involved mechanisms. J Cell Physiol 2018; 234:8203-8220. [PMID: 30500074 DOI: 10.1002/jcp.27628] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/25/2018] [Indexed: 12/11/2022]
Abstract
Flavonoids are a varied family of phytonutrients (plant chemicals) usually are detected in fruits and vegetables. In this big family, there exist more than 10,000 members that is separated into six chief subtypes: isoflavonols, flavonoenes, flavones, flavonols, anthocyanins, and chalcones. The natural compounds, such as fruits, have visible positive effects in regulating of survival involved signaling pathways that performance as the regulator of cell survival, growth, and proliferation. Researchers have established that commonly consumption up flavonoids decreases incidence and development risk of certain cancers, especially leukemia. Flavonoids have been able to induce apoptosis and stimulate cell cycle arrest in cancer cells via different pathways. Similarly, they have antiangiogenesis and antimetastasis capability, which were shown in wide ranges of cancer cells, particularly, leukemia. It seems that flavonoid because of their widespread approval, evident safety and low rate of side effects, have hopeful anticarcinogenic potential for leukemia therapy. Based on the last decade reports, the most important acting mechanisms of these natural compounds in leukemia cells are stimulating of apoptosis pathways by upregulation of caspase 3, 8, 9 and poly ADP-ribose polymerase (PARP) and proapoptotic proteins, particularly Bax activation. As well, they can induce cell cycle arrest in target cells not only via increasing of activated levels of p21 and p53 but also by inhibition of cyclins and cyclin-dependent kinases. Furthermore, attenuation of neclear factor-κB and signal transducer and activator of transcription 3 activation, suppression of signaling pathway and downregulation of intracellular antiapoptotic proteins are other significant antileukemic function mechanism of flavonoids. Overall, it appears that flavonoids are promising and effective compounds in the field of leukemia therapy. In this review, we tried to accumulate and revise most promising flavonoids and finally declared their major working mechanisms in leukemia cells.
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Affiliation(s)
- Raedeh Saraei
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Faroogh Marofi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Adel Naimi
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Talebi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahnaz Ghaebi
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Javan
- Department of Clinical Biochemistry and Laboratories Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Salimi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Hassanzadeh
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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372
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Almiron Bonnin DA, Havrda MC, Israel MA. Glioma Cell Secretion: A Driver of Tumor Progression and a Potential Therapeutic Target. Cancer Res 2018; 78:6031-6039. [PMID: 30333116 DOI: 10.1158/0008-5472.can-18-0345] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 05/30/2018] [Accepted: 08/14/2018] [Indexed: 11/16/2022]
Abstract
Cellular secretion is an important mediator of cancer progression. Secreted molecules in glioma are key components of complex autocrine and paracrine pathways that mediate multiple oncogenic pathologies. In this review, we describe tumor cell secretion in high-grade glioma and highlight potential novel therapeutic opportunities. Cancer Res; 78(21); 6031-9. ©2018 AACR.
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Affiliation(s)
- Damian A Almiron Bonnin
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.,Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Matthew C Havrda
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.,Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Mark A Israel
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. .,Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire.,Departments of Medicine and Pediatrics, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
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373
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Park AM, Tsunoda I, Yoshie O. Heat shock protein 27 promotes cell cycle progression by down-regulating E2F transcription factor 4 and retinoblastoma family protein p130. J Biol Chem 2018; 293:15815-15826. [PMID: 30166342 DOI: 10.1074/jbc.ra118.003310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/23/2018] [Indexed: 02/05/2023] Open
Abstract
Heat shock protein 27 (HSP27) protects cells under stress. Here, we demonstrate that HSP27 also promotes cell cycle progression of MRC-5 human lung fibroblast cells. Serum starvation for 24 h induced G1 arrest in these cells, and upon serum refeeding, the cells initiated cell cycle progression accompanied by an increase in HSP27 protein levels. HSP27 levels peaked at 12 h, and transcriptional up-regulation of six G2/M-related genes (CCNA2, CCNB1, CCNB2, CDC25C, CDCA3, and CDK1) peaked at 24-48 h. siRNA-mediated HSP27 silencing in proliferating MRC-5 cells induced G2 arrest coinciding with down-regulation of these six genes. Of note, the promoters of all of these genes have the cell cycle-dependent element and/or the cell cycle gene-homology region. These promoter regions are known to be bound by the E2F family proteins (E2F-1 to E2F-8) and retinoblastoma (RB) family proteins (RB1, p107, and p130), among which E2F-4 and p130 were strongly up-regulated in HSP27-knockdown cells. E2F-4 or p130 knockdown concomitant with the HSP27 knockdown rescued MRC-5 cells from G2 arrest and up-regulated the six cell cycle genes. Moreover, we observed cellular senescence in MRC-5 cells on day 3 after the HSP27 knockdown, as evidenced by increased senescence-associated β-gal activity and up-regulated inflammatory cytokines. The cellular senescence was also suppressed by the concomitant knockdown of E2F-4/HSP27 or p130/HSP27. Our findings indicate that HSP27 promotes cell cycle progression of MRC-5 cells by suppressing expression of the transcriptional repressors E2F-4 and p130.
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Affiliation(s)
- Ah-Mee Park
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and
| | - Ikuo Tsunoda
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and
| | - Osamu Yoshie
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and.,the Health and Kampo Institute, 1-11-10 Murasakiyama, Sendai, Miyagi 981-3205, Japan
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374
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Shi YY, Zhang J, Zhang T, Zhou M, Wang Y, Zhang HJ, Ding SG. Cellular stress and redox activity proteins are involved in gastric carcinogenesis associated with Helicobacter pylori infection expressing high levels of thioredoxin-1. J Zhejiang Univ Sci B 2018; 19:750-763. [PMID: 30269443 PMCID: PMC6194355 DOI: 10.1631/jzus.b1700456] [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: 09/08/2017] [Accepted: 02/07/2018] [Indexed: 12/12/2022]
Abstract
Helicobacter pylori infection is related to the development of gastric diseases. Our previous studies showed that high thioredoxin-1 (Trx1) expression in H. pylori can promote gastric carcinogenesis. To explore the underlying molecular mechanisms, we performed an isobaric tags for relative and absolute quantitation (iTRAQ)-based quantitative proteomic analysis of stomach tissues from Mongolian gerbil infected with H. pylori expressing high and low Trx1. Differences in the profiles of the expressed proteins were analyzed by bioinformatics and verified using Western blot analysis. We found three candidate proteins, 14-3-3α/β, glutathione-S-transferase (GST), and heat shock protein 70 (HSP70), in high Trx1 tissues compared with low Trx1 tissues and concluded that cellular stress and redox activity-related proteins were involved in the pathogenesis of gastric cancer associated with H. pylori Trx1.
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Affiliation(s)
- Yan-yan Shi
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - Jing Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Ting Zhang
- Department of Microbiology, Peking University Health Science Center, Beijing 100191, China
| | - Man Zhou
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Ye Wang
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - He-jun Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Shi-gang Ding
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
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375
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Regulation of Antimicrobial Pathways by Endogenous Heat Shock Proteins in Gastrointestinal Disorders. GASTROINTESTINAL DISORDERS 2018. [DOI: 10.3390/gidisord1010005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Heat shock proteins (HSPs) are essential mediators of cellular homeostasis by maintaining protein functionality and stability, and activating appropriate immune cells. HSP activity is influenced by a variety of factors including diet, microbial stimuli, environment and host immunity. The overexpression and down-regulation of HSPs is associated with various disease phenotypes, including the inflammatory bowel diseases (IBD) such as Crohn’s disease (CD). While the precise etiology of CD remains unclear, many of the putative triggers also influence HSP activity. The development of different CD phenotypes therefore may be a result of the disease-modifying behavior of the environmentally-regulated HSPs. Understanding the role of bacterial and endogenous HSPs in host homeostasis and disease will help elucidate the complex interplay of factors. Furthermore, discerning the function of HSPs in CD may lead to therapeutic developments that better reflect and respond to the gut environment.
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376
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Going CC, Tailor D, Kumar V, Birk AM, Pandrala M, Rice MA, Stoyanova T, Malhotra S, Pitteri SJ. Quantitative Proteomic Profiling Reveals Key Pathways in the Anticancer Action of Methoxychalcone Derivatives in Triple Negative Breast Cancer. J Proteome Res 2018; 17:3574-3585. [PMID: 30200768 DOI: 10.1021/acs.jproteome.8b00636] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Triple negative breast cancer is an aggressive, heterogeneous disease with high recurrence and metastasis rates even with modern chemotherapy regimens and thus is in need of new therapeutics. Here, three novel synthetic analogues of chalcones, plant-based molecules that have demonstrated potency against a wide variety of cancers, were investigated as potential therapeutics for triple negative breast cancer. These compounds exhibit IC50 values of ∼5 μM in triple negative breast cancer cell lines and are more potent against triple negative breast cancer cell lines than against nontumor breast cell lines according to viability experiments. Tandem mass tag-based quantitative proteomics followed by gene set enrichment analysis and validation experiments using flow cytometry, apoptosis, and Western blot assays revealed three different anticancer mechanisms for these compounds. First, the chalcone analogues induce the unfolded protein response followed by apoptosis. Second, increases in the abundances of MHC-I pathway proteins occurs, which would likely result in immune stimulation in an organism. And third, treatment with the chalcone analogues causes disruption of the cell cycle by interfering with microtubule structure and by inducing G1 phase arrest. These data demonstrate the potential of these novel chalcone derivatives as treatments for triple negative breast cancer, though further work evaluating their efficacy in vivo is needed.
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Affiliation(s)
- Catherine C Going
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Dhanir Tailor
- Department of Radiation Oncology , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Vineet Kumar
- Department of Radiation Oncology , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Alisha M Birk
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Mallesh Pandrala
- Department of Radiation Oncology , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Meghan A Rice
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States
| | - Tanya Stoyanova
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States.,Stanford Cancer Institute , Stanford University School of Medicine , Stanford , California 94305 , United States
| | - Sanjay Malhotra
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States.,Department of Radiation Oncology , Stanford University School of Medicine , Palo Alto , California 94304 , United States.,Stanford Cancer Institute , Stanford University School of Medicine , Stanford , California 94305 , United States
| | - Sharon J Pitteri
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection , Stanford University School of Medicine , Palo Alto , California 94304 , United States.,Stanford Cancer Institute , Stanford University School of Medicine , Stanford , California 94305 , United States
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377
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Dependence of HSP27 cellular level on protein kinase CK2 discloses novel therapeutic strategies. Biochim Biophys Acta Gen Subj 2018; 1862:2902-2910. [PMID: 30279146 DOI: 10.1016/j.bbagen.2018.09.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 08/21/2018] [Accepted: 09/18/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND HSP27 plays a role in various diseases, including neurodegenerative diseases, ischemia, and atherosclerosis. It is particularly important in the regulation of the development, progression and metastasis of cancer as well as cell apoptosis and drug resistance. However, the absence of an ATP binding domain, that is, instead, present in other HSPs such as HSP90 and HSP70, hampers the development of small molecules as inhibitors of HSP27. METHODS Knockout cell lines generated by Crispr/Cas9 gene editing tool, specific kinase inhibitors and siRNA transfections were exploited to demonstrate that the expression of HSP27 is dependent on the integrity/activity of protein kinase CK2 holoenzyme. The interaction between these proteins has been confirmed by co-immunoprecipitation, confocal immunofluorescence microscopy, and by density gradient separation of protein complexes. Finally, using a proliferation assay this study demonstrates the potential efficacy of a combinatory therapy of heath shock and CK2 inhibitors in cancer treatment. RESULTS Our data demonstrate that CK2 is able to regulate HSP27 turnover by affecting the expression of its ubiquitin ligase SMURF2 (Smad ubiquitination regulatory factor 2). Moreover, for the first time we show an increased sensitivity of CK2-inhibited tumour cells to hyperthermia treatment. CONCLUSION Being HSP27 involved in several pathological conditions, including protein conformational diseases (i.e Cystic Fibrosis) and cancer, the need of drugs to modulate its activity is growing and CK2-targeting could represent a new strategy to reduce cellular HSP27 level. GENERAL SIGNIFICANCE This study identifies CK2 as a molecular target to control HSP27 cellular expression.
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378
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Olotu F, Adeniji E, Agoni C, Bjij I, Khan S, Elrashedy A, Soliman M. An update on the discovery and development of selective heat shock protein inhibitors as anti-cancer therapy. Expert Opin Drug Discov 2018; 13:903-918. [PMID: 30207185 DOI: 10.1080/17460441.2018.1516035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Over the years, not a single HSP inhibitor has progressed into the post-market phase of drug development despite the success recorded in various pre-clinical and clinical studies. The inability of existing drugs to specifically target oncogenic HSPs has majorly accounted for these setbacks. Recent combinatorial strategies that incorporated computer-aided drug design (CADD) techniques are geared towards the development of highly specific HSP inhibitors with increased activities and minimal toxicities. Areas covered: In this review, strategic therapeutic approaches that have recently aided the development of selective HSP inhibitors were highlighted. Also, the significant contributions of CADD techniques over the years were discussed in detail. This article further describes promising computational paradigms and their applications towards the discovery of highly specific inhibitors of oncogenic HSPs. Expert opinion: The recent shift towards highly selective and specific HSP inhibition has shown great promise as evidenced by the development of paralog/isoform-selective HSP drugs. It could be further augmented with computer-aided drug design strategies, which incorporate reliable methods that would greatly enhance the design and optimization of novel inhibitors with improved activities and minimal toxicities.
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Affiliation(s)
- Fisayo Olotu
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
| | - Emmanuel Adeniji
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
| | - Clement Agoni
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
| | - Imane Bjij
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
| | - Shama Khan
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
| | | | - Mahmoud Soliman
- a Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences , University of KwaZulu-Natal , Durban , South Africa
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379
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Mas G, Guan JY, Crublet E, Debled EC, Moriscot C, Gans P, Schoehn G, Macek P, Schanda P, Boisbouvier J. Structural investigation of a chaperonin in action reveals how nucleotide binding regulates the functional cycle. SCIENCE ADVANCES 2018; 4:eaau4196. [PMID: 30255156 PMCID: PMC6154984 DOI: 10.1126/sciadv.aau4196] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/01/2018] [Indexed: 05/03/2023]
Abstract
Chaperonins are ubiquitous protein assemblies present in bacteria, eukaryota, and archaea, facilitating the folding of proteins, preventing protein aggregation, and thus participating in maintaining protein homeostasis in the cell. During their functional cycle, they bind unfolded client proteins inside their double ring structure and promote protein folding by closing the ring chamber in an adenosine 5'-triphosphate (ATP)-dependent manner. Although the static structures of fully open and closed forms of chaperonins were solved by x-ray crystallography or electron microscopy, elucidating the mechanisms of such ATP-driven molecular events requires studying the proteins at the structural level under working conditions. We introduce an approach that combines site-specific nuclear magnetic resonance observation of very large proteins, enabled by advanced isotope labeling methods, with an in situ ATP regeneration system. Using this method, we provide functional insight into the 1-MDa large hsp60 chaperonin while processing client proteins and reveal how nucleotide binding, hydrolysis, and release control switching between closed and open states. While the open conformation stabilizes the unfolded state of client proteins, the internalization of the client protein inside the chaperonin cavity speeds up its functional cycle. This approach opens new perspectives to study structures and mechanisms of various ATP-driven biological machineries in the heat of action.
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Affiliation(s)
| | | | | | | | | | | | | | - Pavel Macek
- Corresponding author. (P.M.); (P.S.); (J.B.)
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380
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Heat Shock Proteins in Alzheimer's Disease: Role and Targeting. Int J Mol Sci 2018; 19:ijms19092603. [PMID: 30200516 PMCID: PMC6163571 DOI: 10.3390/ijms19092603] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/28/2018] [Accepted: 08/30/2018] [Indexed: 12/12/2022] Open
Abstract
Among diseases whose cure is still far from being discovered, Alzheimer’s disease (AD) has been recognized as a crucial medical and social problem. A major issue in AD research is represented by the complexity of involved biochemical pathways, including the nature of protein misfolding, which results in the production of toxic species. Considering the involvement of (mis)folding processes in AD aetiology, targeting molecular chaperones represents a promising therapeutic perspective. This review analyses the connection between AD and molecular chaperones, with particular attention toward the most important heat shock proteins (HSPs) as representative components of the human chaperome: Hsp60, Hsp70 and Hsp90. The role of these proteins in AD is highlighted from a biological point of view. Pharmacological targeting of such HSPs with inhibitors or regulators is also discussed.
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381
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Petersen ALDOA, Campos TA, Dantas DADS, Rebouças JDS, da Silva JC, de Menezes JPB, Formiga FR, de Melo JV, Machado G, Veras PST. Encapsulation of the HSP-90 Chaperone Inhibitor 17-AAG in Stable Liposome Allow Increasing the Therapeutic Index as Assessed, in vitro, on Leishmania (L) amazonensis Amastigotes-Hosted in Mouse CBA Macrophages. Front Cell Infect Microbiol 2018; 8:303. [PMID: 30214897 PMCID: PMC6126448 DOI: 10.3389/fcimb.2018.00303] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/07/2018] [Indexed: 12/15/2022] Open
Abstract
The current long-term treatment for leishmaniasis causes severe side effects and resistance in some cases. An evaluation of the anti-leishmanial potential of an HSP90-inhibitor, 17-allylamino-17-demethoxygeldanamycin (17-AAG), demonstrated its potent effect against Leishmania spp. in vitro and in vivo. We have previously shown that 17-AAG can kill L. (L) amazonensis promastigotes with an IC50 of 65 nM and intracellular amastigote at concentrations as low as 125 nM. As this compound presents low solubility and high toxicity in human clinical trials, we prepared an inclusion complex containing hydroxypropyl-β-cyclodextrin and 17-AAG (17-AAG:HPβCD) to improve its solubility. This complex was characterized by scanning electron microscopy, and X-ray diffraction. Liposomes-containing 17-AAG:HPβCD was prepared and evaluated for encapsulation efficiency (EE%), particle size, polydispersity index (PDI), pH, and zeta potential, before and after accelerated and long-term stability testing. An evaluation of leishmanicidal activity against promastigotes and intracellular amastigotes of L. (L) amazonensis was also performed. The characterization techniques utilized confirmed the formation of the inclusion complex, HPβCD:17-AAG, with a resulting 33-fold-enhancement in compound water solubility. Stability studies revealed that 17-AAG:HPβCD-loaded liposomes were smaller than 200 nm, with 99% EE. Stability testing detected no alterations in PDI that was 0.295, pH 7.63, and zeta potential +22.6, suggesting liposome stability, and suitability for evaluating leishmanicidal activity. Treatment of infected macrophages with 0.006 nM of 17-AAG:HPβCD or 17-AAG:HPβCD-loaded liposomes resulted in almost complete amastigote clearance inside macrophages after 48 h. This reduction is similar to the one observed in infected macrophages treated with 2 μM amphotericin B. Our results showed that nanotechnology and drug delivery systems could be used to increase the antileishmanial efficacy and potency of 17-AAG in vitro, while also resulting in reduced toxicity that indicates these formulations may represent a potential therapeutic strategy against leishmaniasis.
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Affiliation(s)
| | - Thiers A Campos
- Graduate Program in Biological Sciences, Center of Biological Sciences, Federal University of Pernambuco, Recife, Brazil.,Laboratory of Electron Microscopy and Microanalysis (LAMM), Center of Strategical Technologies (CETENE), Recife, Brazil
| | | | - Juliana de Souza Rebouças
- Laboratory of Parasite-Host Interaction and Epidemiology (LAIPHE), Gonçalo Moniz Institute-FIOCRUZ, Salvador, Brazil.,Institute of Biological Sciences, University of Pernambuco (UPE), Recife, Brazil
| | - Juliana Cruz da Silva
- Laboratory of Electron Microscopy and Microanalysis (LAMM), Center of Strategical Technologies (CETENE), Recife, Brazil
| | - Juliana P B de Menezes
- Laboratory of Parasite-Host Interaction and Epidemiology (LAIPHE), Gonçalo Moniz Institute-FIOCRUZ, Salvador, Brazil
| | - Fábio R Formiga
- Postgraduate Program in Applied Cellular and Molecular Biology, Institute of Biological Sciences, University of Pernambuco (UPE), Recife, Brazil.,Laboratory of Vector-Borne Infectious Diseases (LEITV), Gonçalo Moniz Institute-FIOCRUZ, Salvador, Brazil
| | - Janaina V de Melo
- Laboratory of Electron Microscopy and Microanalysis (LAMM), Center of Strategical Technologies (CETENE), Recife, Brazil
| | - Giovanna Machado
- Laboratory of Electron Microscopy and Microanalysis (LAMM), Center of Strategical Technologies (CETENE), Recife, Brazil
| | - Patrícia S T Veras
- Laboratory of Parasite-Host Interaction and Epidemiology (LAIPHE), Gonçalo Moniz Institute-FIOCRUZ, Salvador, Brazil.,National Institute of Technology in Tropical Diseases-National Council for Scientific and Technological Development, Brasilia, Brazil
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382
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Koganti P, Levy-Cohen G, Blank M. Smurfs in Protein Homeostasis, Signaling, and Cancer. Front Oncol 2018; 8:295. [PMID: 30116722 PMCID: PMC6082930 DOI: 10.3389/fonc.2018.00295] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022] Open
Abstract
Protein ubiquitination is an evolutionary conserved highly-orchestrated enzymatic cascade essential for normal cellular functions and homeostasis maintenance. This pathway relies on a defined set of cellular enzymes, among them, substrate-specific E3 ubiquitin ligases (E3s). These ligases are the most critical players, as they define the spatiotemporal nature of ubiquitination and confer specificity to this cascade. Smurf1 and Smurf2 (Smurfs) are the C2-WW-HECT-domain E3 ubiquitin ligases, which recently emerged as important determinants of pivotal cellular processes. These processes include cell proliferation and differentiation, chromatin organization and dynamics, DNA damage response and genomic integrity maintenance, gene expression, cell stemness, migration, and invasion. All these processes are intimately connected and profoundly altered in cancer. Initially, Smurf proteins were identified as negative regulators of the bone morphogenetic protein (BMP) and the transforming growth factor beta (TGF-β) signaling pathways. However, recent studies have extended the scope of Smurfs' biological functions beyond the BMP/TGF-β signaling regulation. Here, we provide a critical literature overview and updates on the regulatory roles of Smurfs in molecular and cell biology, with an emphasis on cancer. We also highlight the studies demonstrating the impact of Smurf proteins on tumor cell sensitivity to anticancer therapies. Further in-depth analyses of Smurfs' biological functions and influences on molecular pathways could provide novel therapeutic targets and paradigms for cancer diagnosis and treatment.
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Affiliation(s)
- Praveen Koganti
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Gal Levy-Cohen
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Michael Blank
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
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383
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Di Cara G, Marabeti MR, Musso R, Riili I, Cancemi P, Pucci Minafra I. New Insights into the Occurrence of Matrix Metalloproteases -2 and -9 in a Cohort of Breast Cancer Patients and Proteomic Correlations. Cells 2018; 7:cells7080089. [PMID: 30060564 PMCID: PMC6115737 DOI: 10.3390/cells7080089] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 01/01/2023] Open
Abstract
Matrix metalloproteases (MMPs) are a family of well-known enzymes which operate prevalently in the extracellular domain, where they fulfil the function of remodeling the extracellular matrix (ECM). Within the 26 family members, encoded by 24 genes in humans, MMP-2 and MMP-9 have been regarded as primarily responsible for the basement membrane and peri-cellular ECM rearrangement. In cases of infiltrating carcinomas, which arise from the epithelial tissues of a gland or of an internal organ, a marked alteration of the expression and the activity levels of both MMPs is known to occur. The present investigation represents the continuation and upgrading of our previous studies, now focusing on the occurrence and intensity levels of MMP-2 and -9 and their proteomic correlations in a cohort of 80 breast cancer surgical tissues.
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Affiliation(s)
- Gianluca Di Cara
- Centro di Oncobiologia Sperimentale, Università di Palermo, 90146 Palermo, Italy.
| | - Maria Rita Marabeti
- Centro di Oncobiologia Sperimentale, Università di Palermo, 90146 Palermo, Italy.
| | - Rosa Musso
- Centro di Oncobiologia Sperimentale, Università di Palermo, 90146 Palermo, Italy.
| | | | - Patrizia Cancemi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, Università di Palermo, 90100 Palermo, Italy.
| | - Ida Pucci Minafra
- Centro di Oncobiologia Sperimentale, Università di Palermo, 90146 Palermo, Italy.
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384
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Li ZY, Lu J, Zhang NZ, Elsheikha HM, Hou JL, Guo HT, Zhu XQ. Immunization with plasmid DNA expressing Heat Shock Protein 40 confers prophylactic protection against chronic Toxoplasma gondii infection in Kunming mice. ACTA ACUST UNITED AC 2018; 25:37. [PMID: 30040611 PMCID: PMC6057741 DOI: 10.1051/parasite/2018040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/07/2018] [Indexed: 01/08/2023]
Abstract
Toxoplasma gondii causes one of the most common protozoal diseases of humans and animals worldwide. With the aim of designing an effective vaccine against T. gondii infection, we examined the immunogenicity of a DNA vaccine expressing heat shock protein 40 (HSP40) against challenge with T. gondii (type I RH and type II Pru) strains in Kunming mice. The plasmid pVAX1-HSP40 was constructed and used to immunize mice by intramuscular injection for three sequential immunizations with two-week intervals. This immunization regimen significantly reduced parasite cyst burden in pVAX1-HSP40-immunized mice (1871.9 ± 142.3) compared with control mouse groups immunized with pVAX1 (3479.2 ± 204.4), phosphate buffered saline (3024.4 ± 212.8), or left untreated (3275.0 ± 179.8) as healthy controls (p < 0.01). However, immunization failed to protect mice against challenge with the virulent RH strain. There was a significant increase in T lymphocyte subclasses (CD3e+CD4+ T and CD3e+CD8a+ T lymphocytes) in splenic tissues in immunized mice compared with controls (p < 0.05). However, the level of antibodies, lymphocyte proliferation and concentration of cytokines (IFN-γ, IL-2, IL-4, IL-10 and IL-12p70) were not significantly different between immunized and control mouse groups (p < 0.05). These data indicate that pVAX1-HSP40 induced specific immune responses and achieved a significant reduction in the number of brain cysts in Pru-infected mice, and thus can be tested in future immunization studies along with plasmids containing other immunogenic proteins as a cocktail vaccine to fully abolish chronic toxoplasmosis.
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Affiliation(s)
- Zhong-Yuan Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China - State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China
| | - Jing Lu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China
| | - Nian-Zhang Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Jun-Ling Hou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China
| | - Hai-Ting Guo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China - College of Biological Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, PR China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, PR China
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385
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Li Y, Yang Q, Guan H, Shi B, Ji M, Hou P. ZNF677 Suppresses Akt Phosphorylation and Tumorigenesis in Thyroid Cancer. Cancer Res 2018; 78:5216-5228. [PMID: 29997231 DOI: 10.1158/0008-5472.can-18-0003] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/29/2018] [Accepted: 07/05/2018] [Indexed: 11/16/2022]
Abstract
The zinc finger protein 677 (ZNF677) belongs to the zinc finger protein family, which possesses transcription factor activity by binding sequence-specific DNA. Previous studies have reported its downregulated by promoter methylation in non-small cell lung cancer. However, its biological role and exact mechanism in human cancers, including thyroid cancer, remain unknown. In this study, we demonstrate that ZNF677 is frequently downregulated by promoter methylation in primary papillary thyroid cancers (PTC) and show that decreased expression of ZNF677 is significantly associated with poor patient survival. Ectopic expression of ZNF677 in thyroid cancer cells dramatically inhibited cell proliferation, colony formation, migration, invasion, and tumorigenic potential in nude mice and induced cell-cycle arrest and apoptosis. Conversely, knockdown of ZNF677 promoted thyroid cancer cell proliferation and colony formation. ZNF677 exerted its tumor suppressor functions in thyroid cancer cells through transcriptional repression of two targets CDKN3 and HSPB1 (or HSP27), thereby inhibiting phosphorylation and activation of Akt via distinct mechanisms. Taken together, our data show that ZNF677 functions as a tumor suppressor and is frequently silenced via promoter methylation in thyroid cancer.Significance: These findings report a tumor suppressive role of the zinc-finger protein ZNF677 in primary papillary thyroid cancer through inhibition of Akt phosphorylation. Cancer Res; 78(18); 5216-28. ©2018 AACR.
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Affiliation(s)
- Yujun Li
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Qi Yang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Haixia Guan
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of China Medical University, Shenyang, P.R. China
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Meiju Ji
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China.
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China. .,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
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386
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Li ZY, Lu J, Zhang NZ, Chen J, Zhu XQ. Immune Responses Induced by HSP60 DNA Vaccine against Toxoplasma gondii Infection in Kunming Mice. THE KOREAN JOURNAL OF PARASITOLOGY 2018; 56:237-245. [PMID: 29996627 PMCID: PMC6046561 DOI: 10.3347/kjp.2018.56.3.237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/23/2018] [Indexed: 12/31/2022]
Abstract
Toxoplasma gondii can infect all the vertebrates including human, and leads to serious toxoplasmosis and considerable veterinary problems. T. gondii heat shock protein 60 (HSP60) is associated with the activation of antigen presenting cells by inducing initial immune responses and releasing inflammatory cytokines. It might be a potential DNA vaccine candidate for this parasite. A pVAX-HSP60 DNA vaccine was constructed and immune responses was evaluated in Kunming mice in this study. Our data indicated that the innate and adaptive immune responses was elicited by successive immunizations with pVAX-HSP60 DNA, showing apparent increases of CD3e+CD4+ and CD3e+CD8a+ T cells in spleen tissues of the HSP60 DNA-immunized mice (24.70±1.23% and 10.90±0.89%, P<0.05) and higher levels of specific antibodies in sera. Furthermore, the survival period of the immunized mice (10.53±4.78 day) were significantly prolonged during the acute T. gondii infection. Decrease of brain cysts was significant in the experimental group during the chronic infection (P<0.01). Taken together, TgHSP60 DNA can be as a vaccine candidate to prevent the acute and chronic T. gondii infections.
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Affiliation(s)
- Zhong-Yuan Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province 230036, P. R. China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, P. R. China
| | - Jing Lu
- Guangdong Wens Dahuanong Biotechnology Co., Ltd, Yunfu, Guangdong Province 524700, P. R. China
| | - Nian-Zhang Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, P. R. China
| | - Jia Chen
- Ningbo University School of Medicine, Ningbo, Zhejiang Province 315211, P. R. China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, P. R. China.,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province 225009, P. R. China
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387
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Zoppino FCM, Guerrero-Gimenez ME, Castro GN, Ciocca DR. Comprehensive transcriptomic analysis of heat shock proteins in the molecular subtypes of human breast cancer. BMC Cancer 2018; 18:700. [PMID: 29954368 PMCID: PMC6022707 DOI: 10.1186/s12885-018-4621-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 06/20/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Heat Shock Proteins (HSPs), a family of genes with key roles in proteostasis, have been extensively associated with cancer behaviour. However, the HSP family is quite large and many of its members have not been investigated in breast cancer (BRCA), particularly in relation with the current molecular BRCA classification. In this work, we performed a comprehensive transcriptomic study of the HSP gene family in BRCA patients from both The Cancer Genome Atlas (TCGA) and the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) cohorts discriminating the BRCA intrinsic molecular subtypes. METHODS We examined gene expression levels of 1097 BRCA tissue samples retrieved from TCGA and 1981 samples of METABRIC, focusing mainly on the HSP family (95 genes). Data were stratified according to the PAM50 gene expression (Luminal A, Luminal B, HER2, Basal, and Normal-like). Transcriptomic analyses include several statistical approaches: differential gene expression, hierarchical clustering and survival analysis. RESULTS Of the 20,531 analysed genes we found that in BRCA almost 30% presented deregulated expression (19% upregulated and 10% downregulated), while of the HSP family 25% appeared deregulated (14% upregulated and 11% downregulated) (|fold change| > 2 comparing BRCA with normal breast tissues). The study revealed the existence of shared HSP genes deregulated in all subtypes of BRCA while other HSPs were deregulated in specific subtypes. Many members of the Chaperonin subfamily were found upregulated while three members (BBS10, BBS12 and CCTB6) were found downregulated. HSPC subfamily had moderate increments of transcripts levels. Various genes of the HSP70 subfamily were upregulated; meanwhile, HSPA12A and HSPA12B appeared strongly downregulated. The strongest downregulation was observed in several HSPB members except for HSPB1. DNAJ members showed heterogeneous expression pattern. We found that 23 HSP genes correlated with overall survival and three HSP-based transcriptional profiles with impact on disease outcome were recognized. CONCLUSIONS We identified shared and specific HSP genes deregulated in BRCA subtypes. This study allowed the recognition of HSP genes not previously associated with BRCA and/or any cancer type, and the identification of three clinically relevant clusters based on HSPs expression patterns with influence on overall survival.
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Affiliation(s)
- Felipe C. M. Zoppino
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Martin E. Guerrero-Gimenez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Gisela N. Castro
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Daniel R. Ciocca
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
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388
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Icariin Improves the Viability and Function of Cryopreserved Human Nucleus Pulposus-Derived Mesenchymal Stem Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:3459612. [PMID: 30050653 PMCID: PMC6040248 DOI: 10.1155/2018/3459612] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/09/2018] [Accepted: 05/22/2018] [Indexed: 12/18/2022]
Abstract
Nucleus pulposus-derived mesenchymal stem cells (NPMSCs) have shown a good prospect in the regeneration of intervertebral disc (IVD) tissues. However, fresh NPMSCs are not always readily available for basic research and clinical applications. Therefore, there is a need for an effective long-term cryopreservation method for NPMSCs. The aim of this study was to determine whether adding icariin (ICA) to the conventional cryoprotectant containing dimethyl sulfoxide (DMSO) had a better cryoprotective effect for NPMSCs. The results showed that the freezing solution containing ICA along with DMSO significantly increased the postthawed cell viability, decreased the apoptosis rate, improved cell adherence, and maintained the mitochondrial functions, as compared to the freezing solution containing DMSO alone. And the inhibition of oxidative stress and upregulation of heat shock proteins (HSPs) in the presence of ICA also confirmed the beneficial effect of ICA. Furthermore, ICA had no cytotoxicity and did not alter the characteristics of postthawed NPMSCs. In conclusion, these results suggested that the addition of ICA to the conventional freezing medium could improve the viability and function of the cryopreserved human NPMSCs and provided an optimal formulated freezing solution for human NPMSC cryopreservation.
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389
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Choe H, Cho H, Ko HJ, Lee J. Total Synthesis of (+)-Pochonin D and (+)-Monocillin II via Chemo- and Regioselective Intramolecular Nitrile Oxide Cycloaddition. Org Lett 2018; 19:6004-6007. [PMID: 29048170 DOI: 10.1021/acs.orglett.7b03054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Asymmetric total syntheses of (+)-pochonin D (1) and (+)-monocillin II (2), Hsp90 inhibitors with potent anticancer activity, have been accomplished where the macrolactone 3 was constructed through a chemo- and regioselective intramolecular nitrile oxide cycloaddition of diene 4.
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Affiliation(s)
- Hyeonjeong Choe
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology , Yuseong, Daejeon 34114, Republic of Korea.,University of Science and Technology , Daejeon 34114, Republic of Korea
| | - Hyukjoon Cho
- College of Pharmacy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyun-Jeong Ko
- College of Pharmacy, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Jongkook Lee
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology , Yuseong, Daejeon 34114, Republic of Korea.,College of Pharmacy, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
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390
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Lee MG, Liu YC, Lee YL, El-Shazly M, Lai KH, Shih SP, Ke SC, Hong MC, Du YC, Yang JC, Sung PJ, Wen ZH, Lu MC. Heteronemin, a Marine Sesterterpenoid-Type Metabolite, Induces Apoptosis in Prostate LNcap Cells via Oxidative and ER Stress Combined with the Inhibition of Topoisomerase II and Hsp90. Mar Drugs 2018; 16:md16060204. [PMID: 29890785 PMCID: PMC6025191 DOI: 10.3390/md16060204] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 05/31/2018] [Accepted: 06/09/2018] [Indexed: 12/11/2022] Open
Abstract
Heteronemin, a marine sesterterpenoid-type natural product, possesses diverse bioactivities, especially antitumor effect. Accumulating evidence shows that heteronemin may act as a potent anticancer agent in clinical therapy. To fully understand the antitumor mechanism of heteronemin, we further explored the precise molecular targets in prostate cancer cells. Initially, heteronemin exhibited potent cytotoxic effect against LNcap and PC3 prostate cancer cells with IC50 1.4 and 2.7 μM after 24 h, respectively. In the xenograft animal model, the tumor size was significantly suppressed to about 51.9% in the heteronemin-treated group in comparison with the control group with no significant difference in the mice body weights. In addition, the results of a cell-free system assay indicated that heteronemin could act as topoisomerase II (topo II) catalytic inhibitor through the elimination of essential enzymatic activity of topoisomerase IIα expression. We found that the use of heteronemin-triggered apoptosis by 20.1⁻68.3%, caused disruption of mitochondrial membrane potential (MMP) by 66.9⁻99.1% and promoted calcium release by 1.8-, 2.0-, and 2.1-fold compared with the control group in a dose-dependent manner, as demonstrated by annexin-V/PI, rhodamine 123 and Fluo-3 staining assays, respectively. Moreover, our findings indicated that the pretreatment of LNcap cells with an inhibitor of protein tyrosine phosphatase (PTPi) diminished growth inhibition, oxidative and Endoplasmic Reticulum (ER) stress, as well as activation of Chop/Hsp70 induced by heteronemin, suggesting PTP activation plays a crucial rule in the cytotoxic activity of heteronemin. Using molecular docking analysis, heteronemin exhibited more binding affinity to the N-terminal ATP-binding pocket of Hsp90 protein than 17-AAG, a standard Hsp90 inhibitor. Finally, heteronemin promoted autophagy and apoptosis through the inhibition of Hsp 90 and topo II as well as PTP activation in prostate cancer cells. Taken together, these multiple targets present heteronemin as an interesting candidate for its future development as an antiprostatic agent.
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Affiliation(s)
- Man-Gang Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Division of Urology, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 802, Taiwan.
- Division of Urology, Department of Surgery, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 813, Taiwan.
| | - Yi-Chang Liu
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Department of Internal Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yi-Lun Lee
- Department of Urology, Sinying Hospital, Ministry of Health and Welfare, Tainan 730, Taiwan.
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 115, Egypt.
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 114, Egypt.
| | - Kuei-Hung Lai
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan.
| | - Shou-Ping Shih
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 804, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 115, Taiwan.
| | - Seng-Chung Ke
- Division of Urology, Department of Surgery, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 813, Taiwan.
| | - Ming-Chang Hong
- Department and Graduate Institute of Aquaculture, National Kaohsiung Marine University, Kaohsiung 811, Taiwan.
| | - Ying-Chi Du
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan.
| | - Juan-Cheng Yang
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan.
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan.
| | - Zhi-Hong Wen
- Division of Urology, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 802, Taiwan.
| | - Mei-Chin Lu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan.
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391
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Wang Z, Guo LM, Wang Y, Zhou HK, Wang SC, Chen D, Huang JF, Xiong K. Inhibition of HSP90α protects cultured neurons from oxygen-glucose deprivation induced necroptosis by decreasing RIP3 expression. J Cell Physiol 2018; 233:4864-4884. [PMID: 29334122 DOI: 10.1002/jcp.26294] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 11/14/2017] [Indexed: 01/03/2023]
Abstract
Heat shock protein 90α (HSP90α) maintains cell stabilization and regulates cell death, respectively. Recent studies have shown that HSP90α is involved in receptor interacting protein 3 (RIP3)-mediated necroptosis in HT29 cells. It is known that oxygen and glucose deprivation (OGD) can induce necroptosis, which is regulated by RIP3 in neurons. However, it is still unclear whether HSP90α participates in the process of OGD-induced necroptosis in cultured neurons via the regulation of RIP3. Our study found that necroptosis occurs in primary cultured cortical neurons and PC-12 cells following exposure to OGD insult. Additionally, the expression of RIP3/p-RIP3, MLKL/p-MLKL, and the RIP1/RIP3 complex (necrosome) significantly increased following OGD, as measured through immunofluorescence (IF) staining, Western blotting (WB), and immunoprecipitation (IP) assay. Additionally, data from computer simulations and IP assays showed that HSP90α interacts with RIP3. In addition, HSP90α was overexpressed following OGD in cultured neurons, as measured through WB and IF staining. Inhibition of HSP90α in cultured neurons, using the specific inhibitor, geldanamycin (GA), and siRNA/shRNA of HSP90α, protected cultured neurons from necrosis. Our study showed that the inhibitor of HSP90α, GA, rescued cultured neurons not only by decreasing the expression of total RIP3/MLKL, but also by decreasing the expression of p-RIP3/p-MLKL and the RIP1/RIP3 necrosome. In this study, we reveal that inhibition of HSP90α protects primary cultured cortical neurons and PC-12 cells from OGD-induced necroptosis through the modulation of RIP3 expression.
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Affiliation(s)
- Zhen Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Li-Min Guo
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Yong Wang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Hong-Kang Zhou
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Shu-Chao Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Dan Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Ju-Fang Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
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392
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Sun H, Cai X, Zhou H, Li X, Du Z, Zou H, Wu J, Xie L, Cheng Y, Xie W, Lu X, Xu L, Chen L, Li E, Wu B. The protein-protein interaction network and clinical significance of heat-shock proteins in esophageal squamous cell carcinoma. Amino Acids 2018; 50:685-697. [PMID: 29700654 DOI: 10.1007/s00726-018-2569-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/09/2018] [Indexed: 02/06/2023]
Abstract
Heat-shock proteins (HSPs), one of the evolutionarily conserved protein families, are widely found in various organisms, and play important physiological functions. Nevertheless, HSPs have not been systematically analyzed in esophageal squamous cell carcinoma (ESCC). In this study, we applied the protein-protein interaction (PPI) network methodology to explore the characteristics of HSPs, and integrate their expression in ESCC. First, differentially expressed HSPs in ESCC were identified from our previous RNA-seq data. By constructing a specific PPI network, we found differentially expressed HSPs interacted with hundreds of neighboring proteins. Subcellular localization analyses demonstrated that HSPs and their interacting proteins distributed in multiple layers, from membrane to nucleus. Functional enrichment annotation analyses revealed known and potential functions for HSPs. KEGG pathway analyses identified four significant enrichment pathways. Moreover, three HSPs (DNAJC5B, HSPA1B, and HSPH1) could serve as promising targets for prognostic prediction in ESCC, suggesting these HSPs might play a significant role in the development of ESCC. These multiple bioinformatics analyses have provided a comprehensive view of the roles of heat-shock proteins in esophageal squamous cell carcinoma.
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Affiliation(s)
- Hong Sun
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Xinyi Cai
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Haofeng Zhou
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Xiaoqi Li
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Zepeng Du
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, 515041, China
| | - Haiying Zou
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Jianyi Wu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Lei Xie
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
| | - Yinwei Cheng
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, China
| | - Wenming Xie
- Network and Information Center, Shantou University Medical College, Shantou, 515041, China
| | - Xiaomei Lu
- Tumor Hospital Affiliated to Xinjiang Medical University, Ürümqi, 830054, Xinjiang Uygur Autonomous Region, China
| | - Liyan Xu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, 515041, China
| | - Longqi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Sichuan, 610041, China
| | - Enmin Li
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China.
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
| | - Bingli Wu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, 515041, China.
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
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393
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Sun L, Cui ZG, Zakki SA, Feng QW, Li ML, Inadera H. Mechanistic study of nonivamide enhancement of hyperthermia-induced apoptosis in U937 cells. Free Radic Biol Med 2018; 120:147-159. [PMID: 29551639 DOI: 10.1016/j.freeradbiomed.2018.03.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 03/07/2018] [Accepted: 03/11/2018] [Indexed: 11/16/2022]
Abstract
Hyperthermia is one therapeutic tool for damaging and killing cancer cells, with minimal injury to normal tissues. However, its cytotoxic effects alone are insufficient for quantitative cancer cell death. To overcome this limitation, several studies have explored non-toxic enhancers for hyperthermia-induced cell death. Capsaicin may be applicable as a therapeutic tool against various types of cancer. In the present study, we employed nonivamide, a less-pungent capsaicin analogue, to investigate its possible enhancing effects on hyperthermia-induced apoptosis; moreover, we analyzed its molecular mechanism. Treatment of U937 cells at 44 °C for 15 min, combined with nonivamide 50 μM, revealed enhancement of apoptosis. Significant increases in reactive oxygen species generation, mitochondrial dysfunction, and cleaved caspase-3 were observed during the combined treatment; these were accompanied by an increase in pro-apoptotic Bcl-2 family proteins and a decrease in anti-apoptotic Bcl-2 proteins. In addition, significant increases in p-JNK and p-p38 were detected, following the combined treatment. In conclusion, nonivamide enhanced hyperthermia-induced apoptosis via a mitochondrial-caspase dependent pathway. The underlying mechanism may include elevation of intracellular reactive oxygen species, mitochondrial dysfunction, and increased activation of JNK and p38.
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Affiliation(s)
- Lu Sun
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Zheng-Guo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan; Graduate School of Medicine, Henan Polytechnic University, Jiaozuo 454000 China
| | - Shahbaz Ahmad Zakki
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Qian-Wen Feng
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Meng-Ling Li
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Hidekuni Inadera
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
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394
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Miao W, Li L, Wang Y. A Targeted Proteomic Approach for Heat Shock Proteins Reveals DNAJB4 as a Suppressor for Melanoma Metastasis. Anal Chem 2018; 90:6835-6842. [PMID: 29722524 DOI: 10.1021/acs.analchem.8b00986] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Heat shock proteins are molecular chaperones that are involved in protein folding. In this study, we developed a targeted proteomic method, relying on LC-MS/MS in the parallel-reaction monitoring (PRM) mode, for assessing quantitatively the human heat shock proteome. The method facilitated the coverage of approximately 70% of the human heat shock proteome and displayed much better throughput and sensitivity than the shotgun proteomic approach. We also applied the PRM method for assessing the differential expression of heat shock proteins in three matched primary/metastatic pairs of melanoma cell lines. We were able to quantify ∼45 heat shock proteins in each pair of cell lines, and the quantification results revealed that DNAJB4 is down-regulated in the three lines of metastatic melanoma cells relative to the corresponding primary melanoma cells. Interrogation of The Cancer Genome Atlas data showed that lower levels of DNAJB4 expression conferred poorer prognosis in melanoma patients. Moreover, we found that DNAJB4 suppresses the invasion of cultured melanoma cells through diminished expression and activities of matrix metalloproteinases 2 and 9 (MMP-2 and MMP-9). Together, we established, for the first time, a high-throughput targeted proteomics method for profiling quantitatively the human heat shock proteome and discovered DNAJB4 as a suppressor for melanoma metastasis.
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Affiliation(s)
- Weili Miao
- Department of Chemistry , University of California , Riverside , California 92521-0403 , United States
| | - Lin Li
- Department of Chemistry , University of California , Riverside , California 92521-0403 , United States
| | - Yinsheng Wang
- Department of Chemistry , University of California , Riverside , California 92521-0403 , United States
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395
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Lissemore JL, Connors E, Liu Y, Qiao L, Yang B, Edgley ML, Flibotte S, Taylor J, Au V, Moerman DG, Maine EM. The Molecular Chaperone HSP90 Promotes Notch Signaling in the Germline of Caenorhabditis elegans. G3 (BETHESDA, MD.) 2018; 8:1535-1544. [PMID: 29507057 PMCID: PMC5940146 DOI: 10.1534/g3.118.300551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/26/2018] [Indexed: 12/27/2022]
Abstract
In a genetic screen to identify genes that promote GLP-1/Notch signaling in Caenorhabditis elegans germline stem cells, we found a single mutation, om40, defining a gene called ego-3. ego-3(om40) causes several defects in the soma and the germline, including paralysis during larval development, sterility, delayed proliferation of germline stem cells, and ectopic germline stem cell proliferation. Whole genome sequencing identified om40 as an allele of hsp-90, previously known as daf-21, which encodes the C. elegans ortholog of the cytosolic form of HSP90. This protein is a molecular chaperone with a central position in the protein homeostasis network, which is responsible for proper folding, structural maintenance, and degradation of proteins. In addition to its essential role in cellular function, HSP90 plays an important role in stem cell maintenance and renewal. Complementation analysis using a deletion allele of hsp-90 confirmed that ego-3 is the same gene. hsp-90(om40) is an I→N conservative missense mutation of a highly conserved residue in the middle domain of HSP-90 RNA interference-mediated knockdown of hsp-90 expression partially phenocopied hsp-90(om40), confirming the loss-of-function nature of hsp-90(om40) Furthermore, reduced HSP-90 activity enhanced the effect of reduced function of both the GLP-1 receptor and the downstream LAG-1 transcription factor. Taken together, our results provide the first experimental evidence of an essential role for HSP90 in Notch signaling in development.
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Affiliation(s)
- James L Lissemore
- Biology Department, John Carroll University, University Heights, OH 44118
| | - Elyse Connors
- Department of Biology, Syracuse University, NY 13244
| | - Ying Liu
- Department of Biology, Syracuse University, NY 13244
| | - Li Qiao
- Department of Biology, Syracuse University, NY 13244
| | - Bing Yang
- Department of Biology, Syracuse University, NY 13244
| | - Mark L Edgley
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
| | - Stephane Flibotte
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
| | - Jon Taylor
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
| | - Vinci Au
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
| | - Donald G Moerman
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
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396
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Sottile ML, Nadin SB. Heat shock proteins and DNA repair mechanisms: an updated overview. Cell Stress Chaperones 2018; 23:303-315. [PMID: 28952019 PMCID: PMC5904076 DOI: 10.1007/s12192-017-0843-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 09/13/2017] [Indexed: 02/02/2023] Open
Abstract
Heat shock proteins (HSPs), also known as molecular chaperones, participate in important cellular processes, such as protein aggregation, disaggregation, folding, and unfolding. HSPs have cytoprotective functions that are commonly explained by their antiapoptotic role. Their involvement in anticancer drug resistance has been the focus of intense research efforts, and the relationship between HSP induction and DNA repair mechanisms has been in the spotlight during the past decades. Because DNA is permanently subject to damage, many DNA repair pathways are involved in the recognition and removal of a diverse array of DNA lesions. Hence, DNA repair mechanisms are key to maintain genome stability. In addition, the interactome network of HSPs with DNA repair proteins has become an exciting research field and so their use as emerging targets for cancer therapy. This article provides a historical overview of the participation of HSPs in DNA repair mechanisms as part of their molecular chaperone capabilities.
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Affiliation(s)
- Mayra L Sottile
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Adrián Ruiz Leal s/n Parque Gral. San Martín, 5500, Mendoza, Argentina
| | - Silvina B Nadin
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Adrián Ruiz Leal s/n Parque Gral. San Martín, 5500, Mendoza, Argentina.
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397
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Tovar C, Patchett AL, Kim V, Wilson R, Darby J, Lyons AB, Woods GM. Heat shock proteins expressed in the marsupial Tasmanian devil are potential antigenic candidates in a vaccine against devil facial tumour disease. PLoS One 2018; 13:e0196469. [PMID: 29702669 PMCID: PMC5922574 DOI: 10.1371/journal.pone.0196469] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 04/13/2018] [Indexed: 11/19/2022] Open
Abstract
The Tasmanian devil (Sarcophilus harrisii), the largest extant carnivorous marsupial and endemic to Tasmania, is at the verge of extinction due to the emergence of a transmissible cancer known as devil facial tumour disease (DFTD). DFTD has spread over the distribution range of the species and has been responsible for a severe decline in the global devil population. To protect the Tasmanian devil from extinction in the wild, our group has focused on the development of a prophylactic vaccine. Although this work has shown that vaccine preparations using whole DFTD tumour cells supplemented with adjuvants can induce anti-DFTD immune responses, alternative strategies that induce stronger and more specific immune responses are required. In humans, heat shock proteins (HSPs) derived from tumour cells have been used instead of whole-tumour cell preparations as a source of antigens for cancer immunotherapy. As HSPs have not been studied in the Tasmanian devil, this study presents the first characterisation of HSPs in this marsupial and evaluates the suitability of these proteins as antigenic components for the enhancement of a DFTD vaccine. We show that tissues and cancer cells from the Tasmanian devil express constitutive and inducible HSP. Additionally, this study suggests that HSP derived from DFTD cancer cells are immunogenic supporting the future development of a HSP-based vaccine against DFTD.
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Affiliation(s)
- Cesar Tovar
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- * E-mail:
| | - Amanda L. Patchett
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Vitna Kim
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Richard Wilson
- Central Science Laboratory, University of Tasmania, Hobart, Tasmania, Australia
| | - Jocelyn Darby
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - A. Bruce Lyons
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Gregory M. Woods
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
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398
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HSP27 is a partner of JAK2-STAT5 and a potential therapeutic target in myelofibrosis. Nat Commun 2018; 9:1431. [PMID: 29650953 PMCID: PMC5897330 DOI: 10.1038/s41467-018-03627-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 02/27/2018] [Indexed: 12/11/2022] Open
Abstract
Heat shock protein 27 (HSP27/HSPB1) is a stress-inducible chaperone that facilitates cancer development by its proliferative and anti-apoptotic functions. The OGX-427 antisense oligonucleotide against HSP27 has been reported to be beneficial against idiopathic pulmonary fibrosis. Here we show that OGX-427 is effective in two murine models of thrombopoietin- and JAKV617F-induced myelofibrosis. OGX-427 limits disease progression and is associated with a reduction in spleen weight, in megakaryocyte expansion and, for the JAKV617F model, in fibrosis. HSP27 regulates the proliferation of JAK2V617F-positive cells and interacts directly with JAK2/STAT5. We also show that its expression is increased in both CD34+ circulating progenitors and in the serum of patients with JAK2-dependent myeloproliferative neoplasms with fibrosis. Our data suggest that HSP27 plays a key role in the pathophysiology of myelofibrosis and represents a new potential therapeutic target for patients with myeloproliferative neoplasms. Myelofibrosis is a chronic degenerative disorder characterized by progressive bone marrow fibrosis. Here, the authors show that the chaperone HSP27 contributes to myelofibrosis via regulation of the JAK2/STAT5 pathway, and that antisense oligonucleotides targeting HSP27 are effective in two mouse models of the disease
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399
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Sato SB, Sugiura M, Kurihara T. Dimer-monomer equilibrium of human HSP27 is influenced by the in-cell macromolecular crowding environment and is controlled by fatty acids and heat. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:692-701. [PMID: 29635040 DOI: 10.1016/j.bbapap.2018.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 12/23/2022]
Abstract
Small heat shock protein 27 (HSP27) is an essential element of the proteostasis network in human cells. The HSP27 monomer coexists with the dimer, which can bind unfolded client proteins. Here, we evaluated the in-cell dimer-monomer equilibrium and its relevance to the binding of client proteins in a normal human vascular endothelial cell line. When cells were treated with a membrane-permeable crosslinker, the protein existed primarily as a free monomer (27 kDa) with a markedly smaller percentage of dimer (54 kDa), hetero-conjugates, and minor smear-like bands. When the protein was crosslinked in a cell-free lysate, two of the hetero-conjugates that were crosslinked in live cells were also detected, but the dimer and other complexes were absent. However, when cells were pretreated with fatty acid (FA) and/or heat (42.5 °C), dissociation of the dimer was selectively prevented and two types of covalently linked dimers were increased. These changes occurred most prominently in cells treated with docosahexaenoic acid (DHA) and heat, which appeared to intensify the heat resistance of the cell. Both the formation of covalently linked dimers and heat resistance were prevented by N-acetylcysteine. By contrast, nearly all of the free monomers in the lysate converted to disulfide bond-linked dimers by a simple, long incubation at 4 °C. These results strongly suggest that the monomer-dimer equilibrium of HSP27 was inversed between the in-cell and cell-free systems. Temperature- and amphiphile-regulated dimerization was restricted probably due to the low hydration of the in-cell crowding environment.
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Affiliation(s)
- Satoshi B Sato
- Department of Biophysics, Division of Biological Science, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
| | - Miwa Sugiura
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tatsuo Kurihara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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400
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Suzuki H, Kosuge Y, Kobayashi K, Kurosaki Y, Ishii N, Aoyama N, Ishihara K, Ichikawa T. Heat-shock protein 72 promotes platelet aggregation induced by various platelet activators in rats. Biomed Res 2018. [PMID: 28637952 DOI: 10.2220/biomedres.38.175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Increase of thrombus in the coronary arteries is positively correlated with the level of heat-shock protein 72 (HSP72) in the blood of patients with acute myocardial infarction (AMI). Platelet aggregation participates in thrombus formation on ruptured plaque in AMI. In this study, we aimed to clarify the role of HSP72 in thrombus formation by evaluating the effects of HSP72 on platelet aggregation. Platelet aggregation activities were measured in platelet-rich plasma obtained from male Sprague-Dawley rats with or without the platelet activators, such as adenosine diphosphate (ADP), collagen, thrombin receptor-activating peptide-6 (TRAP-6), ristocetin, and arachidonic acid. Changes in aggregation were estimated by the co-addition of recombinant HSP72 and anti-HSP72 antibodies. Our results showed that addition of HSP72 increased platelet aggregation in the presence of low concentrations of ADP, collagen, TRAP-6, ristocetin, and arachidonic acid. Increased platelet aggregation stimulated by ADP and HSP72 was reduced by the co-addition of anti-HSP72 antibodies. Thus, these findings suggested that HSP72 was released extracellularly in response to stress, promoting thrombus formation and AMI. Additionally, treatment with anti-HSP72 antibodies may control platelet aggregation induced by extracellular HSP72.
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Affiliation(s)
- Hideaki Suzuki
- Department of Medical Technology, Kitasato Junior College of Health and Hygienic Sciences
| | - Yuuko Kosuge
- Department of Medical Technology, Kitasato Junior College of Health and Hygienic Sciences
| | - Koji Kobayashi
- Department of Medical Technology, Kitasato Junior College of Health and Hygienic Sciences
| | - Yoshifumi Kurosaki
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences
| | - Naohito Ishii
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences
| | - Naoyoshi Aoyama
- Research and Development Center for New Medical Frontiers, Department of Comprehensive Medicine, Division of Internal and Emergency Medicine, Kitasato University School of Medicine
| | - Kazuhiko Ishihara
- Department of Medical Technology, Kitasato Junior College of Health and Hygienic Sciences
| | - Takafumi Ichikawa
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences
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