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Velasco‐Carneros L, Bernardo‐Seisdedos G, Maréchal J, Millet O, Moro F, Muga A. Pseudophosphorylation of single residues of the J-domain of DNAJA2 regulates the holding/folding balance of the Hsc70 system. Protein Sci 2024; 33:e5105. [PMID: 39012012 PMCID: PMC11249846 DOI: 10.1002/pro.5105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/20/2024] [Accepted: 06/23/2024] [Indexed: 07/17/2024]
Abstract
The Hsp70 system is essential for maintaining protein homeostasis and comprises a central Hsp70 and two accessory proteins that belong to the J-domain protein (JDP) and nucleotide exchange factor families. Posttranslational modifications offer a means to tune the activity of the system. We explore how phosphorylation of specific residues of the J-domain of DNAJA2, a class A JDP, regulates Hsc70 activity using biochemical and structural approaches. Among these residues, we find that pseudophosphorylation of Y10 and S51 enhances the holding/folding balance of the Hsp70 system, reducing cochaperone collaboration with Hsc70 while maintaining the holding capacity. Truly phosphorylated J domains corroborate phosphomimetic variant effects. Notably, distinct mechanisms underlie functional impacts of these DNAJA2 variants. Pseudophosphorylation of Y10 induces partial disordering of the J domain, whereas the S51E substitution weakens essential DNAJA2-Hsc70 interactions without a large structural reorganization of the protein. S51 phosphorylation might be class-specific, as all cytosolic class A human JDPs harbor a phosphorylatable residue at this position.
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Affiliation(s)
- Lorea Velasco‐Carneros
- Instituto Biofisika (UPV/EHU, CSIC)University of Basque CountryLeioaSpain
- Department of Biochemistry and Molecular Biology, Faculty of Science and TechnologyUniversity of the Basque Country (UPV/EHU)LeioaSpain
| | - Ganeko Bernardo‐Seisdedos
- Precision Medicine and Metabolism LabCIC bioGUNEDerioSpain
- Department of Medicine, Faculty of Health SciencesUniversity of DeustoBilbaoSpain
| | - Jean‐Didier Maréchal
- Insilichem, Departament de QuímicaUniversitat Autònoma de Barcelona (UAB)Bellaterra (Barcelona)Spain
| | - Oscar Millet
- Precision Medicine and Metabolism LabCIC bioGUNEDerioSpain
| | - Fernando Moro
- Instituto Biofisika (UPV/EHU, CSIC)University of Basque CountryLeioaSpain
- Department of Biochemistry and Molecular Biology, Faculty of Science and TechnologyUniversity of the Basque Country (UPV/EHU)LeioaSpain
| | - Arturo Muga
- Instituto Biofisika (UPV/EHU, CSIC)University of Basque CountryLeioaSpain
- Department of Biochemistry and Molecular Biology, Faculty of Science and TechnologyUniversity of the Basque Country (UPV/EHU)LeioaSpain
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2
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Li N, Huang Y, Wu Y, Wang Q, Ji P. Extracellular vesicles derived from monomeric α-synuclein-treated microglia ameliorate neuroinflammation by delivery of miRNAs targeting PRAK. Neurosci Lett 2024; 818:137562. [PMID: 37984486 DOI: 10.1016/j.neulet.2023.137562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/06/2023] [Accepted: 11/16/2023] [Indexed: 11/22/2023]
Abstract
Parkinson's disease (PD) is characterized by the formation of Lewy body, which mainly contains misfolded α-synuclein. Microglial activation plays a role in neurodegeneration. The pathologically oligomeric α-synuclein promotes inflammatory microglia, while physiologically monomeric α-synuclein induces anti-inflammatory microglia, the relationship between these two forms in activating microglia and the molecular mechanism is essentially unknown. In this study, using in vivo and in vitro models, we challenged primary or BV2 microglia with exogenous stimuli including α-synuclein. We examined microglial activation and the underlying mechanism by Western blot, RT-PCR, ELISA, IF, FCM, miRNA sequencing and bioinformatic analysis. Oligomeric α-synuclein activatedmicroglia via theinvolvement of the PRAK/MK5 pathway. The specific PRAK inhibitor GLPG0259 could mitigate microglial activation insulted by oligomeric α-synuclein. Monomeric α-synuclein regulated theanti-inflammatory microglia by delivering microglia-derived extracellular vesicles (EVs) in vitro and in vivo. Furthersequencingand bioinformatic analysis of microglial EVs-associated miRNAs indicatedthatmost of these miRNAs targeted PRAK. These results suggest that PRAK serves as an intersection in microglial activation when challenged with conformationally different α-synuclein. EVs derived from microglia treated with monomeric α-synuclein promote anti-inflammatory microglia by delivering miRNAs that target PRAK into recipient microglia.
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Affiliation(s)
- Na Li
- Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China; Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Yang Huang
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Department of Neurosurgery, Huashan Hospital, Institute for Translational Brain Research, State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200032, China
| | - Yufeng Wu
- Clinical Laboratory Department of Peking University Third Hospital, Beijing 100191, China
| | - Qilong Wang
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Pengyu Ji
- Department of Laboratory Medicine, The First Hospital of Lanzhou University, The First School of Clinical Medicine, Lanzhou, 730000, Gansu Province, China.
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3
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Ciesielski SJ, Young C, Ciesielska EJ, Ciesielski GL. The Hsp70 and JDP proteins: Structure-function perspective on molecular chaperone activity. Enzymes 2023; 54:221-245. [PMID: 37945173 DOI: 10.1016/bs.enz.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Proteins are the most structurally diverse cellular biomolecules that act as molecular machines driving essential activities of all living organisms. To be functional, most of the proteins need to fold into a specific three-dimensional structure, which on one hand should be stable enough to oppose disruptive conditions and on the other hand flexible enough to allow conformational dynamics necessary for their biological functions. This compromise between stability and dynamics makes proteins susceptible to stress-induced misfolding and aggregation. Moreover, the folding process itself is intrinsically prone to conformational errors. Molecular chaperones are proteins that mitigate folding defects and maintain the structural integrity of the cellular proteome. Promiscuous Hsp70 chaperones are central to these processes and their activity depends on the interaction with obligatory J-domain protein (JDP) partners. In this review, we discuss structural aspects of Hsp70s, JDPs, and their interaction in the context of biological activities.
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Affiliation(s)
- Szymon J Ciesielski
- Department of Chemistry and Biochemistry, University of North Florida, Jacksonville, FL, United States.
| | - Cameron Young
- Department of Chemistry and Biochemistry, University of North Florida, Jacksonville, FL, United States
| | - Elena J Ciesielska
- Department of Chemistry, Auburn University at Montgomery, Montgomery, AL, United States; Department of Biology, University of North Florida, Jacksonville, FL, United States
| | - Grzegorz L Ciesielski
- Department of Chemistry, Auburn University at Montgomery, Montgomery, AL, United States; Department of Biology, University of North Florida, Jacksonville, FL, United States
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4
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Zhang R, Malinverni D, Cyr DM, Rios PDL, Nillegoda NB. J-domain protein chaperone circuits in proteostasis and disease. Trends Cell Biol 2023; 33:30-47. [PMID: 35729039 PMCID: PMC9759622 DOI: 10.1016/j.tcb.2022.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 12/27/2022]
Abstract
The J-domain proteins (JDP) form the largest protein family among cellular chaperones. In cooperation with the Hsp70 chaperone system, these co-chaperones orchestrate a plethora of distinct functions, including those that help maintain cellular proteostasis and development. JDPs evolved largely through the fusion of a J-domain with other protein subdomains. The highly conserved J-domain facilitates the binding and activation of Hsp70s. How JDPs (re)wire Hsp70 chaperone circuits and promote functional diversity remains insufficiently explained. Here, we discuss recent advances in our understanding of the JDP family with a focus on the regulation built around J-domains to ensure correct pairing and assembly of JDP-Hsp70 machineries that operate on different clientele under various cellular growth conditions.
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Affiliation(s)
- Ruobing Zhang
- Australian Regenerative Medicine Institute (ARMI), Monash University, Melbourne, Victoria, Australia
| | - Duccio Malinverni
- MRC Laboratory of Molecular Biology, Cambridge, UK; Department of Structural Biology and Center for Data Driven Discovery, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Douglas M Cyr
- Department of Cell Biology and Physiology and the Cystic Fibrosis/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Paolo De Los Rios
- Institute of Physics, School of Basic Sciences and Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Nadinath B Nillegoda
- Australian Regenerative Medicine Institute (ARMI), Monash University, Melbourne, Victoria, Australia.
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Multi-Faceted Roles of DNAJB Protein in Cancer Metastasis and Clinical Implications. Int J Mol Sci 2022; 23:ijms232314970. [PMID: 36499297 PMCID: PMC9737691 DOI: 10.3390/ijms232314970] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
Heat shock proteins (HSPs) are highly conserved molecular chaperones with diverse cellular activities, including protein folding, assembly or disassembly of protein complexes, and maturation process under diverse stress conditions. HSPs also play essential roles in tumorigenesis, metastasis, and therapeutic resistance across cancers. Among them, HSP40s are widely accepted as regulators of HSP70/HSP90 chaperones and an accumulating number of biological functions as molecular chaperones dependent or independent of either of these chaperones. Despite large numbers of HSP40s, little is known about their physiologic roles, specifically in cancer progression. This article summarizes the multi-faceted role of DNAJB proteins as one subclass of the HSP40 family in cancer development and metastasis. Regulation and deregulation of DNAJB proteins at transcriptional, post-transcriptional, and post-translational levels contribute to tumor progression, particularly cancer metastasis. Furthermore, understanding differences in function and regulating mechanism between DNAJB proteins offers a new perspective on tumorigenesis and metastasis to improve therapeutic opportunities for malignant diseases.
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Novel approach to unravel the Heat shock proteins (HSPs) with anti-ischemic stroke and human infections. J Infect Public Health 2022; 15:379-388. [DOI: 10.1016/j.jiph.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/17/2022] [Accepted: 03/01/2022] [Indexed: 11/18/2022] Open
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Khalil MI, Singh V, King J, De Benedetti A. TLK1-mediated MK5-S354 phosphorylation drives prostate cancer cell motility and may signify distinct pathologies. Mol Oncol 2022; 16:2537-2557. [PMID: 35064619 PMCID: PMC9251878 DOI: 10.1002/1878-0261.13183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/06/2021] [Accepted: 01/19/2022] [Indexed: 12/02/2022] Open
Abstract
Metastases account for the majority of prostate cancer (PCa) deaths, and targeting them is a major goal of systemic therapy. We identified a novel interaction between two kinases: tousled‐like kinase 1 (TLK1) and MAP kinase‐activated protein kinase 5 (MK5) that promotes PCa spread. In PCa progression, TLK1–MK5 signalling appears to increase following antiandrogen treatment and in metastatic castration‐resistant prostate cancer (mCRPC) patients. Determinations of motility rates (2D and 3D) of different TLK1‐ and MK5‐perturbed cells, including knockout (KO) and knockdown (KD), as well as the use of specific inhibitors, showed the importance of these two proteins for in vitro dissemination. We established that TLK1 phosphorylates MK5 on three residues (S160, S354 and S386), resulting in MK5 activation, and additionally, mobility shifts of MK5 also supported its phosphorylation by TLK1 in transfected HEK 293 cells. Expression of MK5‐S354A or kinase‐dead MK5 in MK5‐depleted mouse embryonic fibroblast (MEF) cells failed to restore their motility compared with that of wild‐type (WT) MK5‐rescued MK5−/− MEF cells. A pMK5‐S354 antiserum was used to establish this site as an authentic TLK1 target in androgen‐sensitive human prostate adenocarcinoma (LNCaP) cells, and was used in immunohistochemistry (IHC) studies of age‐related PCa sections from TRAMP (transgenic adenocarcinoma of the mouse prostate) mice and to probe a human tissue microarray (TMA), which revealed pMK5‐S354 level is correlated with disease progression (Gleason score and nodal metastases). In addition, The Cancer Genome Atlas (TCGA) analyses of PCa expression and genome‐wide association study (GWAS) relations identify TLK1 and MK5 as potential drivers of advanced PCa and as markers of mCRPC. Our work suggests that TLK1–MK5 signalling is functionally involved in driving PCa cell motility and clinical features of aggressiveness; hence, disruption of this axis may inhibit the metastatic spread of PCa.
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Affiliation(s)
| | - Vibha Singh
- Department of Biochemistry and Molecular Biology
| | - Judy King
- Deparment of Pathology and Translational Pathobiology, LSU Health Sciences Center, Shreveport, USA
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Chen HJ, Li PH, Yang Y, Xin XH, Ou Y, Wei JG, Huang YH, Huang XH, Qin QW, Sun HY. Characterization and function analysis of Epinephelus coioides Hsp40 response to Vibrio alginolyticus and SGIV infection. FISH & SHELLFISH IMMUNOLOGY 2021; 118:396-404. [PMID: 34571156 DOI: 10.1016/j.fsi.2021.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Heat shock protein 40 (Hsp40), a member of Heat shock proteins (Hsps) family, plays a crucial role in regulation of cell proliferation, survival and apoptosis in mammals. In this study, Hsp40, EcHsp40, was identified from Epinephelus coioides, an economically important marine-cultured fish in China and Southeast Asian counties. The full length of EcHsp40 was 2236 bp in length containing a 1026 bp open reading frame (ORF) encoding 341 amino acids, with a molecular mass of 37.88 kDa and a theoretical pI of 9.09. EcHsp40 has two conserved domains DnaJ and DnaJ_C. EcHsp40 mRNA was detected in all tissues examined, and the expression was significantly up-regulated response to challenged with Vibrio alginolyticus or Singapore grouper iridovirus (SGIV), one of the important pathogens of marine fish. EcHsp40 was distributed in both the cytoplasm and nucleus, over-expression of EcHsp40 can inhibit the activity of nuclear factor-κB (NF-κB) and activator protein-1 (AP-1), significantly promote SGIV-induced apoptosis, intracellular caspase-3 activity and viral replication, suggesting that the EcHsp40 may play an important role in pathogenic stimulation.
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Affiliation(s)
- He-Jia Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Department of Biology, College of Science, Shantou University, Shantou, Guangdong, 515063, PR China
| | - Pin-Hong Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yun Yang
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Xiao-Hong Xin
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yan Ou
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jing-Guang Wei
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - You-Hua Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Xiao-Hong Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China
| | - Qi-Wei Qin
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, PR China.
| | - Hong-Yan Sun
- Guangdong Laboratory for Lingnan Modern Agriculture, Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China.
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Impact of severe hypoglycemia on the heat shock and related protein response. Sci Rep 2021; 11:17057. [PMID: 34426634 PMCID: PMC8382834 DOI: 10.1038/s41598-021-96642-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/13/2021] [Indexed: 11/08/2022] Open
Abstract
Heat shock proteins contribute to diabetes-induced complications and are affected by glycemic control. Our hypothesis was that hypoglycemia-induced heat shock and related protein changes would be amplified in type 2 diabetes (T2D). This prospective, case-control study enrolled 23 T2D patients and 23 control subjects who underwent hyperinsulinemic-induced hypoglycemia (≤ 2.0 mmol/L (36 mg/dl)) with blood sampling at baseline, at hypoglycemia and after a 24-h post-hypoglycemia follow-up period. Proteomic analysis of heat shock-related and pro-inflammatory proteins was performed. At baseline, MAPKAPK5 (p = 0.02) and UBE2G2 (p = 0.003) were elevated and STUB1 decreased (p = 0.007) in T2D. At hypoglycemia: PPP3CA (p < 0.03) was increased and EPHA2 (p = 0.01) reduced in T2D; by contrast, three proteins were reduced in controls [HSPA1A (p = 0.007), HSPB1 (p < 0.02), SMAD3 (p = 0.005)] while only MAPKAPK5 was elevated (p = 0.02). In the post-hypoglycemia follow-up period, most proteins normalized to baseline by 24-h; however, STIP1 (p = 0.003), UBE2N (p = 0.004) and UBE2L3 (p < 0.04) were decreased in controls at 24-h. No protein differed from baseline at 24-h in T2D. Pro-inflammatory interleukin-6 increased at 4-h post-hypoglycemia in controls and T2D (p < 0.05 and p < 0.003, respectively) and correlated with HSPA1A; anti-inflammatory IL-10 decreased 2-h post-hypoglycemia in T2D only. Other pro-inflammatory proteins, IL-1α, IFN-γ and TNF-α, were unchanged. Heat shock and related proteins differed at baseline between T2D and controls, with an exaggerated response of heat shock and related proteins to hypoglycemia that returned to baseline, though with changes at 24-h in controls alone. An increase in pro-inflammatory IL-6, with a decrease in anti-inflammatory IL-10, suggests that the HSP system is overactivated due to underlying inflammation in T2D.Trial registration: ClinicalTrials.gov NCT03102801.
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The transcriptome of anterior regeneration in earthworm Eudrilus eugeniae. Mol Biol Rep 2020; 48:259-283. [PMID: 33306150 DOI: 10.1007/s11033-020-06044-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/28/2020] [Indexed: 12/25/2022]
Abstract
The oligochaete earthworm, Eudrilus eugeniae is capable of regenerating both anterior and posterior segments. The present study focuses on the transcriptome analysis of earthworm E. eugeniae to identify and functionally annotate the key genes supporting the anterior blastema formation and regulating the anterior regeneration of the worm. The Illumina sequencing generated a total of 91,593,182 raw reads which were assembled into 105,193 contigs using CLC genomics workbench. In total, 40,946 contigs were annotated against the NCBI nr and SwissProt database and among them, 15,702 contigs were assigned to 14,575 GO terms. Besides a total of 9389 contigs were mapped to 416 KEGG biological pathways. The RNA-Seq comparison study identified 10,868 differentially expressed genes (DEGs) and of them, 3986 genes were significantly upregulated in the anterior regenerated blastema tissue samples of the worm. The GO enrichment analysis showed angiogenesis and unfolded protein binding as the top enriched functions and the pathway enrichment analysis denoted TCA cycle as the most significantly enriched pathway associated with the upregulated gene dataset of the worm. The identified DEGs and their function and pathway information can be effectively utilized further to interpret the key cellular, genetic and molecular events associated with the regeneration of the worm.
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11
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Mishra S, Dunkerly-Eyring BL, Keceli G, Ranek MJ. Phosphorylation Modifications Regulating Cardiac Protein Quality Control Mechanisms. Front Physiol 2020; 11:593585. [PMID: 33281625 PMCID: PMC7689282 DOI: 10.3389/fphys.2020.593585] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
Many forms of cardiac disease, including heart failure, present with inadequate protein quality control (PQC). Pathological conditions often involve impaired removal of terminally misfolded proteins. This results in the formation of large protein aggregates, which further reduce cellular viability and cardiac function. Cardiomyocytes have an intricately collaborative PQC system to minimize cellular proteotoxicity. Increased expression of chaperones or enhanced clearance of misfolded proteins either by the proteasome or lysosome has been demonstrated to attenuate disease pathogenesis, whereas reduced PQC exacerbates pathogenesis. Recent studies have revealed that phosphorylation of key proteins has a potent regulatory role, both promoting and hindering the PQC machinery. This review highlights the recent advances in phosphorylations regulating PQC, the impact in cardiac pathology, and the therapeutic opportunities presented by harnessing these modifications.
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Affiliation(s)
- Sumita Mishra
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Brittany L Dunkerly-Eyring
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University, Baltimore, MD, United States
| | - Gizem Keceli
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Mark J Ranek
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
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12
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Forcella M, Lau P, Oldani M, Melchioretto P, Bogni A, Gribaldo L, Fusi P, Urani C. Neuronal specific and non-specific responses to cadmium possibly involved in neurodegeneration: A toxicogenomics study in a human neuronal cell model. Neurotoxicology 2020; 76:162-173. [DOI: 10.1016/j.neuro.2019.11.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/23/2019] [Accepted: 11/06/2019] [Indexed: 12/14/2022]
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13
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Velasco L, Dublang L, Moro F, Muga A. The Complex Phosphorylation Patterns that Regulate the Activity of Hsp70 and Its Cochaperones. Int J Mol Sci 2019; 20:ijms20174122. [PMID: 31450862 PMCID: PMC6747476 DOI: 10.3390/ijms20174122] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 12/26/2022] Open
Abstract
Proteins must fold into their native structure and maintain it during their lifespan to display the desired activity. To ensure proper folding and stability, and avoid generation of misfolded conformations that can be potentially cytotoxic, cells synthesize a wide variety of molecular chaperones that assist folding of other proteins and avoid their aggregation, which unfortunately is unavoidable under acute stress conditions. A protein machinery in metazoa, composed of representatives of the Hsp70, Hsp40, and Hsp110 chaperone families, can reactivate protein aggregates. We revised herein the phosphorylation sites found so far in members of these chaperone families and the functional consequences associated with some of them. We also discuss how phosphorylation might regulate the chaperone activity and the interaction of human Hsp70 with its accessory and client proteins. Finally, we present the information that would be necessary to decrypt the effect that post-translational modifications, and especially phosphorylation, could have on the biological activity of the Hsp70 system, known as the “chaperone code”.
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Affiliation(s)
- Lorea Velasco
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain
| | - Leire Dublang
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain
| | - Fernando Moro
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain.
| | - Arturo Muga
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain.
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14
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Xu Y, Zheng G, Liu G, Yang Q, Yu X. Molecular cloning, characterization of Pomacea canaliculata HSP40 and its expression analysis under temperature change. J Therm Biol 2019; 81:59-65. [PMID: 30975424 DOI: 10.1016/j.jtherbio.2019.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/13/2019] [Accepted: 02/01/2019] [Indexed: 12/23/2022]
Abstract
Heat shock proteins (HSPs) play important roles in the adaption of Pomacea canaliculata to unsuitable environments. In the present study, a cDNA encoding HSP40 in P. canaliculata (PocaHSP40) was cloned and characterized. The PocaHSP40 cDNA was 1466 bp, containing an ORF of 954 bp encoding 317 amino acids. Bioinformatics analysis showed that PocaHSP40 belonged to type II HSP40s and had four predicted phosphorylation sites. Phylogenetic analysis proved the conservation of HSP40s in mollusks. PocaHSP40 was widely expressed in the gill, digestive gland, kidney, and foot muscle of P. canaliculata. Challenged by different temperatures, the expression of PocaHSP40 was up-regulated under low temperatures but not high temperatures, which was contrary to the expression change of PocaHSP70 under low and high temperatures. These results implied that P. canaliculata evolved different strategies for survival under low temperature and high temperature through the regulation of HSPs.
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Affiliation(s)
- Yipeng Xu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China.
| | - Guowan Zheng
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China.
| | - Guangfu Liu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China.
| | - Qianqian Yang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China.
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China.
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15
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Wang H, Li XN, Li PC, Liu W, Du ZH, Li JL. Modulation of heat-shock response is associated with Di (2-ethylhexyl) phthalate (DEHP)-induced cardiotoxicity in quail (Coturnix japonica). CHEMOSPHERE 2019; 214:812-820. [PMID: 30300839 DOI: 10.1016/j.chemosphere.2018.10.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/30/2018] [Accepted: 10/01/2018] [Indexed: 06/08/2023]
Abstract
Di(2-ethylhexyl) phthalate (DEHP) is an omnipresent environmental pollutant with endocrine disrupting properties. As a plasticizer, DEHP can be leach from the plastic to transfer the external environment and thus enters the animal food chain, causing serious damage to the animal organs. The heat-shock response (HSR) comprising heat-shock protein (HSPs) and heat-shock transcription factor (HSFs) plays a pivotal role in various toxic stress conditions. For the sake of investigating the effects of DEHP exposure on cardiac toxicity and the regulation of HSR, male quail were fed the diet with 0, 250, 500 and 750 mg/kg DEHP by gavage administration for 45 days. Histopathological changes including cardiomyocyte swelling and muscle fiber dilatation were observed in the hearts exposed to DEHP. During the DEHP treatment, the mRNA expression of HSP60 and HSP70 were universally reduced, while the expression of other HSPs (HSP10, HSP25, HSP27, HSP40, HSP47, HSP90, HSP110) had different degrees of growth. In addition, the levels of HSF1, HSF2, and HSF3 were significantly increased. Given the facts above, DEHP exposure induced the toxic effects of quail heart. DEHP exposure did great harm to HSR via affecting the synthesis of HSFs to mediate the transcription of the HSPs. Ultimately, this study provided new evidence that DEHP-induced cardiotoxicity in quail was related to activation of HSR and playing a protective role.
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Affiliation(s)
- Hui Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xue-Nan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Peng-Cheng Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Wei Liu
- Energy & Environmental Research Institute of Heilongjiang Province, Harbin, 150027, PR China
| | - Zheng-Hai Du
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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16
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Sahadevan P, Allen BG. MK5: A novel regulator of cardiac fibroblast function? IUBMB Life 2017; 69:785-794. [PMID: 28941148 DOI: 10.1002/iub.1677] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/21/2017] [Indexed: 12/28/2022]
Abstract
MAP kinase-activated protein kinases (MKs), protein serine/threonine kinases downstream of the MAPKs, regulate a number of biological functions. MK5 was initially identified as a substrate for p38 MAPK but subsequent studies revealed that MK5 activity is regulated by atypical MAPKs ERK3 and ERK4. However, the roles of these MAPKs in activating MK5 remain controversial. The interactome and physiological function of MK5 are just beginning to be understood. Here, we provide an overview of the structure-function of MK5 including recent progress in determining its role in cardiac structure and function. The cardiac phenotype of MK5 haplodeficient mice, and the effect of reduced MK5 expression on cardiac remodeling, is also discussed. © 2017 IUBMB Life, 69(10):785-794, 2017.
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Affiliation(s)
- Pramod Sahadevan
- Department of Biochemistry and Molecular Medicine, Université de Montréal and Montreal Heart Institute, Montréal, Québec, Canada
| | - Bruce G Allen
- Department of Biochemistry and Molecular Medicine, Université de Montréal and Montreal Heart Institute, Montréal, Québec, Canada.,Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada.,Department of Medicine, Université de Montréal, Montréal, Québec, Canada
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17
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Park SY, Choi HK, Seo JS, Yoo JY, Jeong JW, Choi Y, Choi KC, Yoon HG. DNAJB1 negatively regulates MIG6 to promote epidermal growth factor receptor signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:2722-30. [PMID: 26239118 DOI: 10.1016/j.bbamcr.2015.07.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 07/28/2015] [Accepted: 07/30/2015] [Indexed: 01/05/2023]
Abstract
Mitogen-inducible gene 6 (MIG6) is a tumor suppressor implicated in the development of human cancers; however, the regulatory mechanisms of MIG6 remain unknown. Here, using a yeast two-hybrid screen, we identified DnaJ homolog subfamily B member I (DNAJB1) as a novel MIG6-interacting protein. We found that DNAJB1 binds to and decreases MIG6 protein, but not mRNA, levels. DNAJB1 overexpression dosage-dependently decreased MIG6 protein levels. Conversely, DNAJB1 knockdown increased MIG6 protein levels. DNAJB1 destabilizes MIG6 by enhancing K48-linked ubiquitination of MIG6. However, knocking-down of DNAJB1 reduced the ubiquitination of MIG6. DNAJB1 positively regulates the epidermal growth factor receptors (EGFR) signaling pathway via destabilization of MIG6; however, DNAJB1 knockdown diminishes activation of EGFR signaling as well as elevation of MIG6. Importantly, the increased levels of MIG6 by DNAJB1 knockdown greatly enhanced the gefitinib sensitivity in A549 cells. Thus, our study provides a new molecular mechanism to regulate EGFR signaling through modulation of MIG6 by DNAJB1 as a negative regulator.
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Affiliation(s)
- Soo-Yeon Park
- Department of Biochemistry and Molecular Biology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyo-Kyoung Choi
- Division of Nutrition and Metabolism Research Group, Korea Food Research Institute, Gyeonggi-do, Republic of Korea
| | - Jae Sung Seo
- Department of Biochemistry and Molecular Biology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung-Yoon Yoo
- Department of Biochemistry and Molecular Biology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University College of Human Medicine, MI, USA
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University College of Human Medicine, MI, USA
| | - Youngsok Choi
- Fertility Center of CHA General Hospital, CHA Research Institute, CHA University, Seoul, Republic of Korea
| | - Kyung-Chul Choi
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Ho-Geun Yoon
- Department of Biochemistry and Molecular Biology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea.
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