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Sukhija N, Malik AA, Devadasan JM, Dash A, Bidyalaxmi K, Ravi Kumar D, Kousalaya Devi M, Choudhary A, Kanaka KK, Sharma R, Tripathi SB, Niranjan SK, Sivalingam J, Verma A. Genome-wide selection signatures address trait specific candidate genes in cattle indigenous to arid regions of India. Anim Biotechnol 2024; 35:2290521. [PMID: 38088885 DOI: 10.1080/10495398.2023.2290521] [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] [Indexed: 02/22/2024]
Abstract
The peculiarity of Indian cattle lies in milk quality, resistance to diseases and stressors as well as adaptability. The investigation addressed selection signatures in Gir and Tharparkar cattle, belonging to arid ecotypes of India. Double digest restriction-site associated DNA sequencing (ddRAD-seq) yielded nearly 26 million high-quality reads from unrelated seven Gir and seven Tharparkar cows. In all, 19,127 high-quality SNPs were processed for selection signature analysis. An approach involving within-population composite likelihood ratio (CLR) statistics and between-population FST statistics was used to capture selection signatures within and between the breeds, respectively. A total of 191 selection signatures were addressed using CLR and FST approaches. Selection signatures overlapping 86 and 73 genes were detected as Gir- and Tharparkar-specific, respectively. Notably, genes related to production (CACNA1D, GHRHR), reproduction (ESR1, RBMS3), immunity (NOSTRIN, IL12B) and adaptation (ADAM22, ASL) were annotated to selection signatures. Gene pathway analysis revealed genes in insulin/IGF pathway for milk production, gonadotropin releasing hormone pathway for reproduction, Wnt signalling pathway and chemokine and cytokine signalling pathway for adaptation. This is the first study where selection signatures are identified using ddRAD-seq in indicine cattle breeds. The study shall help in conservation and leveraging genetic improvements in Gir and Tharparkar cattle.
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Affiliation(s)
- Nidhi Sukhija
- ICAR-National Dairy Research Institute, Karnal, India
| | - Anoop Anand Malik
- TERI School of Advanced Studies, Delhi, India
- The Energy and Resources Institute, North Eastern Regional Centre, Guwahati, India
| | | | | | - Kangabam Bidyalaxmi
- ICAR-National Dairy Research Institute, Karnal, India
- ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - D Ravi Kumar
- ICAR-National Dairy Research Institute, Karnal, India
| | | | | | - K K Kanaka
- ICAR-National Dairy Research Institute, Karnal, India
- ICAR- Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Rekha Sharma
- ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | | | | | | | - Archana Verma
- ICAR-National Dairy Research Institute, Karnal, India
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Frédérick PM, Jannot G, Banville I, Simard M. Interaction between a J-domain co-chaperone and a specific Argonaute protein contributes to microRNA function in animals. Nucleic Acids Res 2024; 52:6253-6268. [PMID: 38613392 PMCID: PMC11194074 DOI: 10.1093/nar/gkae272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
MicroRNAs (miRNAs) are essential regulators of several biological processes. They are loaded onto Argonaute (AGO) proteins to achieve their repressive function, forming the microRNA-Induced Silencing Complex known as miRISC. While several AGO proteins are expressed in plants and animals, it is still unclear why specific AGOs are strictly binding miRNAs. Here, we identified the co-chaperone DNJ-12 as a new interactor of ALG-1, one of the two major miRNA-specific AGOs in Caenorhabditis elegans. DNJ-12 does not interact with ALG-2, the other major miRNA-specific AGO, and PRG-1 and RDE-1, two AGOs involved in other small RNA pathways, making it a specific actor in ALG-1-dependent miRNA-mediated gene silencing. The loss of DNJ-12 causes developmental defects associated with defective miRNA function. Using the Auxin Inducible Degron system, a powerful tool to acutely degrade proteins in specific tissues, we show that DNJ-12 depletion hampers ALG-1 interaction with HSP70, a chaperone required for miRISC loading in vitro. Moreover, DNJ-12 depletion leads to the decrease of several miRNAs and prevents their loading onto ALG-1. This study uncovers the importance of a co-chaperone for the miRNA function in vivo and provides insights to explain how different small RNAs associate with specific AGO in animals.
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Affiliation(s)
- Pierre-Marc Frédérick
- Oncology Division, CHU de Québec—Université Laval Research Center, Québec, QC G1R 3S3, Canada
- Université Laval Cancer Research Centre, Québec, QC G1R 3S3, Canada
| | - Guillaume Jannot
- Oncology Division, CHU de Québec—Université Laval Research Center, Québec, QC G1R 3S3, Canada
- Université Laval Cancer Research Centre, Québec, QC G1R 3S3, Canada
| | - Isabelle Banville
- Oncology Division, CHU de Québec—Université Laval Research Center, Québec, QC G1R 3S3, Canada
- Université Laval Cancer Research Centre, Québec, QC G1R 3S3, Canada
| | - Martin J Simard
- Oncology Division, CHU de Québec—Université Laval Research Center, Québec, QC G1R 3S3, Canada
- Université Laval Cancer Research Centre, Québec, QC G1R 3S3, Canada
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Sulaj E, Schwaigerlehner L, Sandell FL, Dohm JC, Marzban G, Kunert R. Quantitative proteomics reveals cellular responses to individual mAb expression and tunicamycin in CHO cells. Appl Microbiol Biotechnol 2024; 108:381. [PMID: 38896138 PMCID: PMC11186912 DOI: 10.1007/s00253-024-13223-1] [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: 02/16/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024]
Abstract
Chinese hamster ovary (CHO) cells are popular in the pharmaceutical industry for their ability to produce high concentrations of antibodies and their resemblance to human cells in terms of protein glycosylation patterns. Current data indicate the relevance of CHO cells in the biopharmaceutical industry, with a high number of product commendations and a significant market share for monoclonal antibodies. To enhance the production capabilities of CHO cells, a deep understanding of their cellular and molecular composition is crucial. Genome sequencing and proteomic analysis have provided valuable insights into the impact of the bioprocessing conditions, productivity, and product quality. In our investigation, we conducted a comparative analysis of proteomic profiles in high and low monoclonal antibody-producing cell lines and studied the impact of tunicamycin (TM)-induced endoplasmic reticulum (ER) stress. We examined the expression levels of different proteins including unfolded protein response (UPR) target genes by using label-free quantification techniques for protein abundance. Our results show the upregulation of proteins associated with protein folding mechanisms in low producer vs. high producer cell line suggesting a form of ER stress related to specific protein production. Further, Hspa9 and Dnaja3 are notable candidates activated by the mitochondria UPR and play important roles in protein folding processes in mitochondria. We identified significant upregulation of Nedd8 and Lgmn proteins in similar levels which may contribute to UPR stress. Interestingly, the downregulation of Hspa5/Bip and Pdia4 in response to tunicamycin treatment suggests a low-level UPR activation. KEY POINTS: • Proteome profiling of recombinant CHO cells under mild TM treatment. • Identified protein clusters are associated with the unfolded protein response (UPR). • The compared cell lines revealed noticeable disparities in protein expression levels.
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Affiliation(s)
- Eldi Sulaj
- Department of Biotechnology, Institute of Animal Cell Technology and Systems Biology (IACTSB), BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Linda Schwaigerlehner
- Department of Biotechnology, Institute of Animal Cell Technology and Systems Biology (IACTSB), BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Felix L Sandell
- Department of Biotechnology, Institute of Computational Biology (ICB), BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Juliane C Dohm
- Department of Biotechnology, Institute of Computational Biology (ICB), BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Gorji Marzban
- Department of Biotechnology, Institute of Bioprocess Science and Engineering (IBSE), BOKU University, Muthgasse 18, 1190, Vienna, Austria.
| | - Renate Kunert
- Department of Biotechnology, Institute of Animal Cell Technology and Systems Biology (IACTSB), BOKU University, Muthgasse 18, 1190, Vienna, Austria
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Chiu CC, Chen YL, Weng YH, Liu SY, Li HL, Yeh TH, Wang HL. Downregulation of Protease Cathepsin D and Upregulation of Pathologic α-Synuclein Mediate Paucity of DNAJC6-Induced Degeneration of Dopaminergic Neurons. Int J Mol Sci 2024; 25:6711. [PMID: 38928416 DOI: 10.3390/ijms25126711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
A homozygous mutation of the DNAJC6 gene causes autosomal recessive familial type 19 of Parkinson's disease (PARK19). To test the hypothesis that PARK19 DNAJC6 mutations induce the neurodegeneration of dopaminergic cells by reducing the protein expression of functional DNAJC6 and causing DNAJC6 paucity, an in vitro PARK19 model was constructed by using shRNA-mediated gene silencing of endogenous DANJC6 in differentiated human SH-SY5Y dopaminergic neurons. shRNA targeting DNAJC6 induced the neurodegeneration of dopaminergic cells. DNAJC6 paucity reduced the level of cytosolic clathrin heavy chain and the number of lysosomes in dopaminergic neurons. A DNAJC6 paucity-induced reduction in the lysosomal number downregulated the protein level of lysosomal protease cathepsin D and impaired macroautophagy, resulting in the upregulation of pathologic α-synuclein or phospho-α-synucleinSer129 in the endoplasmic reticulum (ER) and mitochondria. The expression of α-synuclein shRNA or cathepsin D blocked the DNAJC6 deficiency-evoked degeneration of dopaminergic cells. An increase in ER α-synuclein or phospho-α-synucleinSer129 caused by DNAJC6 paucity activated ER stress, the unfolded protein response and ER stress-triggered apoptotic signaling. The lack of DNAJC6-induced upregulation of mitochondrial α-synuclein depolarized the mitochondrial membrane potential and elevated the mitochondrial level of superoxide. The DNAJC6 paucity-evoked ER stress-related apoptotic cascade, mitochondrial malfunction and oxidative stress induced the degeneration of dopaminergic neurons via activating mitochondrial pro-apoptotic signaling. In contrast with the neuroprotective function of WT DNAJC6, the PARK19 DNAJC6 mutants (Q789X or R927G) failed to attenuate the tunicamycin- or rotenone-induced upregulation of pathologic α-synuclein and stimulation of apoptotic signaling. Our data suggest that PARK19 mutation-induced DNAJC6 paucity causes the degeneration of dopaminergic neurons via downregulating protease cathepsin D and upregulating neurotoxic α-synuclein. Our results also indicate that PARK19 mutation (Q789X or R927G) impairs the DNAJC6-mediated neuroprotective function.
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Affiliation(s)
- Ching-Chi Chiu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
- Healthy Aging Research Center, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Ying-Ling Chen
- Department of Nursing, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
| | - Yi-Hsin Weng
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
- Division of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Shu-Yu Liu
- Department of Physiology and Pharmacology, College of Medicine, Chang Gung University, No. 259, Wen-Hwa 1st Road, Kweishan, Taoyuan 33302, Taiwan
| | - Hon-Lun Li
- Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
| | - Tu-Hsueh Yeh
- Department of Neurology, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Hung-Li Wang
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
- Healthy Aging Research Center, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
- Department of Physiology and Pharmacology, College of Medicine, Chang Gung University, No. 259, Wen-Hwa 1st Road, Kweishan, Taoyuan 33302, Taiwan
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Chen B, Xu P, Yang JC, Nip C, Wang L, Shen Y, Ning S, Shang Y, Corey E, Gao AC, Gestwicki JE, Wei Q, Liu L, Liu C. Plexin D1 emerges as a novel target in the development of neural lineage plasticity in treatment-resistant prostate cancer. Oncogene 2024:10.1038/s41388-024-03081-6. [PMID: 38877132 DOI: 10.1038/s41388-024-03081-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/16/2024]
Abstract
Treatment-induced neuroendocrine prostate cancer (t-NEPC) often arises from adenocarcinoma via lineage plasticity in response to androgen receptor signaling inhibitors, such as enzalutamide. However, the specific regulators and targets involved in the transition to NEPC are not well understood. Plexin D1 (PLXND1) is a cellular receptor of the semaphorin (SEMA) family that plays important roles in modulating the cytoskeleton and cell adhesion. Here, we found that PLXND1 was highly expressed and positively correlated with neuroendocrine markers in patients with NEPC. High PLXND1 expression was associated with poorer prognosis in prostate cancer patients. Additionally, PLXND1 was upregulated and negatively regulated by androgen receptor signaling in enzalutamide-resistant cells. Knockdown or knockout of PLXND1 inhibited neural lineage pathways, thereby suppressing NEPC cell proliferation, patient derived xenograft (PDX) tumor organoid viability, and xenograft tumor growth. Mechanistically, the heat shock protein 70 (HSP70) regulated PLXND1 protein stability through degradation, and inhibition of HSP70 decreased PLXND1 expression and NEPC organoid growth. In summary, our findings indicate that PLXND1 could serve as a promising therapeutic target and molecular marker for NEPC.
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Affiliation(s)
- Bo Chen
- Department of Urologic Surgery, University of California, Davis, CA, USA
- Department of Urology, West China Hospital, Sichuan University, Sichuan, China
| | - Pengfei Xu
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Joy C Yang
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Christopher Nip
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Leyi Wang
- Department of Urologic Surgery, University of California, Davis, CA, USA
- Graduate Group in Integrative Pathobiology, University of California, Davis, CA, USA
| | - Yuqiu Shen
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Shu Ning
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Yufeng Shang
- Department of Urologic Surgery, University of California, Davis, CA, USA
| | - Eva Corey
- Department of Urology, University of Washington, Washington, WA, USA
| | - Allen C Gao
- Department of Urologic Surgery, University of California, Davis, CA, USA
- University of California, Davis Comprehensive Cancer Center, Sacramento, CA, USA
| | - Jason E Gestwicki
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
| | - Qiang Wei
- Department of Urology, West China Hospital, Sichuan University, Sichuan, China
| | - Liangren Liu
- Department of Urology, West China Hospital, Sichuan University, Sichuan, China
| | - Chengfei Liu
- Department of Urologic Surgery, University of California, Davis, CA, USA.
- Graduate Group in Integrative Pathobiology, University of California, Davis, CA, USA.
- University of California, Davis Comprehensive Cancer Center, Sacramento, CA, USA.
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Omkar S, Shrader C, Hoskins JR, Kline JT, Mitchem MM, Fornelli L, Wickner S, Truman AW. Acetylation of the yeast Hsp40 chaperone protein Ydj1 fine-tunes proteostasis and translational fidelity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.13.598777. [PMID: 38915721 PMCID: PMC11195281 DOI: 10.1101/2024.06.13.598777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Proteostasis, the maintenance of cellular protein balance, is essential for cell viability and is highly conserved across all organisms. Newly synthesized proteins, or "clients," undergo sequential processing by Hsp40, Hsp70, and Hsp90 chaperones to achieve proper folding and functionality. Despite extensive characterization of post-translational modifications (PTMs) on Hsp70 and Hsp90, the modifications on Hsp40 remain less understood. This study aims to elucidate the role of lysine acetylation on the yeast Hsp40, Ydj1. By mutating acetylation sites on Ydj1's J-domain to either abolish or mimic constitutive acetylation, we observed that preventing acetylation had no noticeable phenotypic impact, whereas acetyl-mimic mutants exhibited various defects indicative of impaired Ydj1 function. Proteomic analysis revealed several Ydj1 interactions affected by J-domain acetylation, notably with proteins involved in translation. Further investigation uncovered a novel role for Ydj1 acetylation in stabilizing ribosomal subunits and ensuring translational fidelity. Our data suggest that acetylation may facilitate the transfer of Ydj1 between Ssa1 and Hsp82. Collectively, this work highlights the critical role of Ydj1 acetylation in proteostasis and translational fidelity. Author Summary Cells require a suite of chaperone and co-chaperone proteins to maintain a healthy balance of functional proteins. A large number of modifications on chaperone and co-chaperone proteins have been identified, but their functional importance has not been fully explored. In this study, we identify acetylation sites on the yeast co-chaperone Ydj1 that impact its interactions with major chaperones and client proteins including those involved in protein synthesis. This work sheds light on how modifications on co-chaperones can also play an important role in the health of the proteome.
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Montoya MR, Quanrud GM, Mei L, Moñtano JL, Hong C, Genereux JC. Factors affecting protein recovery during Hsp40 affinity profiling. Anal Bioanal Chem 2024:10.1007/s00216-024-05362-1. [PMID: 38850318 DOI: 10.1007/s00216-024-05362-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 04/30/2024] [Accepted: 05/22/2024] [Indexed: 06/10/2024]
Abstract
The identification and quantification of misfolded proteins from complex mixtures is important for biological characterization and disease diagnosis, but remains a major bioanalytical challenge. We have developed Hsp40 Affinity Profiling as a bioanalytical approach to profile protein stability in response to cellular stress. In this assay, we ectopically introduce the Hsp40 FlagDNAJB8H31Q into cells and use quantitative proteomics to determine how protein affinity for DNAJB8 changes in the presence of cellular stress, without regard for native clients. Herein, we evaluate potential approaches to improve the performance of this bioanalytical assay. We find that although intracellular crosslinking increases recovery of protein interactors, this is not enough to overcome the relative drop in DNAJB8 recovery. While the J-domain promotes Hsp70 association, it does not affect the yield of protein association with DNAJB8 under basal conditions. By contrast, crosslinking and J-domain ablation both substantially increase relative protein interactor recovery with the structurally distinct Class B Hsp40 DNAJB1 but are completely compensated by poorer yield of DNAJB1 itself. Cellular thermal stress promotes increased affinity between DNAJB8H31Q and interacting proteins, as expected for interactions driven by recognition of misfolded proteins. DNAJB8WT does not demonstrate such a property, suggesting that under stress misfolded proteins are handed off to Hsp70. Hence, we find that DNAJB8H31Q is still our most effective recognition element for the recovery of destabilized client proteins following cellular stress.
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Affiliation(s)
- Maureen R Montoya
- Department of Chemistry, University of California, 501 Big Springs Rd, Riverside, CA, 92521, USA
| | - Guy M Quanrud
- Department of Chemistry, University of California, 501 Big Springs Rd, Riverside, CA, 92521, USA
| | - Liangyong Mei
- Department of Chemistry, University of North Florida, Jacksonville, FL, USA
| | - José L Moñtano
- Department of Chemistry, University of California, 501 Big Springs Rd, Riverside, CA, 92521, USA
| | - Caleb Hong
- Department of Chemistry, University of California, 501 Big Springs Rd, Riverside, CA, 92521, USA
| | - Joseph C Genereux
- Department of Chemistry, University of California, 501 Big Springs Rd, Riverside, CA, 92521, USA.
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Ryder BD, Ustyantseva E, Boyer DR, Mendoza-Oliva A, Kuska MI, Wydorski PM, Macierzyńska P, Morgan N, Sawaya MR, Diamond MI, Kampinga HH, Joachimiak LA. DNAJB8 oligomerization is mediated by an aromatic-rich motif that is dispensable for substrate activity. Structure 2024; 32:662-678.e8. [PMID: 38508190 PMCID: PMC11162344 DOI: 10.1016/j.str.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 01/17/2024] [Accepted: 02/22/2024] [Indexed: 03/22/2024]
Abstract
J-domain protein (JDP) molecular chaperones have emerged as central players that maintain a healthy proteome. The diverse members of the JDP family function as monomers/dimers and a small subset assemble into micron-sized oligomers. The oligomeric JDP members have eluded structural characterization due to their low-complexity, intrinsically disordered middle domains. This in turn, obscures the biological significance of these larger oligomers in protein folding processes. Here, we identified a short, aromatic motif within DNAJB8 that drives self-assembly through π-π stacking and determined its X-ray structure. We show that mutations in the motif disrupt DNAJB8 oligomerization in vitro and in cells. DNAJB8 variants that are unable to assemble bind to misfolded tau seeds more specifically and retain capacity to reduce protein aggregation in vitro and in cells. We propose a new model for DNAJB8 function in which the sequences in the low-complexity domains play distinct roles in assembly and substrate activity.
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Affiliation(s)
- Bryan D Ryder
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elizaveta Ustyantseva
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen 9713 AV, The Netherlands
| | - David R Boyer
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Ayde Mendoza-Oliva
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mikołaj I Kuska
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Paweł M Wydorski
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Paulina Macierzyńska
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Nabil Morgan
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Michael R Sawaya
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Marc I Diamond
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Harm H Kampinga
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen 9713 AV, The Netherlands
| | - Lukasz A Joachimiak
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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9
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Qu J, Wang Y, Wang Q. Cuproptosis: potential new direction in diabetes research and treatment. Front Endocrinol (Lausanne) 2024; 15:1344729. [PMID: 38904034 PMCID: PMC11188452 DOI: 10.3389/fendo.2024.1344729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 05/22/2024] [Indexed: 06/22/2024] Open
Abstract
Cuproptosis, a recently discovered form of cell death, stems from an overabundance of copper ions infiltrating mitochondria. These ions directly engage lipoylated proteins, prompting their oligomerization and subsequent loss of iron-sulfur clusters. This sequence induces proteotoxic stress, ultimately culminating in cell death. Type 2 diabetes, a chronic metabolic disorder resulting from a complex interplay of genetic and environmental factors, has not yet been fully understood in terms of its etiology and pathogenesis. Intricately, it is linked to various modalities of cell death, including mitochondrial autophagy, apoptosis, pyroptosis, and ferroptosis. Studies have discovered impaired copper metabolism in individuals with Type 2 diabetes, hinting at a unique role for copper homeostasis in the progression of the disease. To this end, the present research aims to delineate the potential correlation between cuproptosis and Type 2 diabetes by exhaustively reviewing the existing literature. By synthesizing relevant research on cuproptosis, the paper intends to lay the groundwork for a thorough exploration of the pathogenesis of Type 2 diabetes and the development of targeted therapeutic interventions. The ultimate objective is to facilitate a deeper understanding of Type 2 diabetes and to identify novel therapeutic strategies associated with cuproptosis.
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Affiliation(s)
| | | | - Qiuyue Wang
- Department of Endocrinology and Metabolism, The First Hospital of China Medical University, Shenyang, Liaoning, China
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Conte AN, Ridgeway SM, Ruchel ME, Kibby EM, Nagy TA, Whiteley AT. Phage detection by a bacterial NLR-related protein is mediated by DnaJ. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.04.597415. [PMID: 38895412 PMCID: PMC11185742 DOI: 10.1101/2024.06.04.597415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Bacteria encode a wide range of antiphage systems and a subset of these proteins are homologous to components of the human innate immune system. Mammalian nucleotide-binding and leucine-rich repeat containing proteins (NLRs) and bacterial NLR-related proteins use a central NACHT domain to link infection detection with initiation of an antimicrobial response. Bacterial NACHT proteins provide defense against both DNA and RNA phages. Here we determine the mechanism of RNA phage detection by the bacterial NLR-related protein bNACHT25 in E. coli. bNACHT25 was specifically activated by Emesvirus ssRNA phages and analysis of MS2 phage suppressor mutants that evaded detection revealed Coat Protein (CP) was sufficient for activation. bNACHT25 and CP did not physically interact. Instead, we found bNACHT25 requires the host chaperone DnaJ to detect CP. Our data suggest that bNACHT25 detects a wide range of phages by guarding a host cell process rather than binding a specific phage-derived molecule.
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Affiliation(s)
- Amy N. Conte
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | | | - Madison E. Ruchel
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
- Department of Biology, Front Range Community College, Longmont, CO, USA
| | - Emily M. Kibby
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Toni A. Nagy
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Aaron T. Whiteley
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
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11
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Ciesielski SJ, Schilke BA, Stolarska M, Tonelli M, Tomiczek B, Craig EA. Comparative structural and functional analysis of the glycine-rich regions of Class A and B J-domain protein cochaperones of Hsp70. FEBS Lett 2024; 598:1465-1477. [PMID: 38529663 DOI: 10.1002/1873-3468.14857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 03/27/2024]
Abstract
J-domain proteins are critical Hsp70 co-chaperones. A and B types have a poorly understood glycine-rich region (Grich) adjacent to their N-terminal J-domain (Jdom). We analyzed the ability of Jdom/Grich segments of yeast Class B Sis1 and a suppressor variant of Class A, Ydj1, to rescue the inviability of sis1-∆. In each, we identified a cluster of Grich residues required for rescue. Both contain conserved hydrophobic and acidic residues and are predicted to form helices. While, as expected, the Sis1 segment docks on its J-domain, that of Ydj1 does not. However, data suggest both interact with Hsp70. We speculate that the Grich-Hsp70 interaction of Classes A and B J-domain proteins can fine tune the activity of Hsp70, thus being particularly important for the function of Class B.
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Affiliation(s)
- Szymon J Ciesielski
- Department of Chemistry and Biochemistry, University of North Florida, Jacksonville, FL, USA
| | - Brenda A Schilke
- Department of Biochemistry, University of Wisconsin - Madison, WI, USA
| | - Milena Stolarska
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Poland
| | - Marco Tonelli
- Department of Biochemistry, University of Wisconsin - Madison, WI, USA
- National Magnetic Resonance Facility at Madison, University of Wisconsin - Madison, WI, USA
| | - Bartlomiej Tomiczek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Poland
| | - Elizabeth A Craig
- Department of Biochemistry, University of Wisconsin - Madison, WI, USA
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12
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Balachandra V, Shrestha RL, Hammond CM, Lin S, Hendriks IA, Sethi SC, Chen L, Sevilla S, Caplen NJ, Chari R, Karpova TS, McKinnon K, Todd MA, Koparde V, Cheng KCC, Nielsen ML, Groth A, Basrai MA. DNAJC9 prevents CENP-A mislocalization and chromosomal instability by maintaining the fidelity of histone supply chains. EMBO J 2024; 43:2166-2197. [PMID: 38600242 PMCID: PMC11148058 DOI: 10.1038/s44318-024-00093-6] [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: 09/28/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
The centromeric histone H3 variant CENP-A is overexpressed in many cancers. The mislocalization of CENP-A to noncentromeric regions contributes to chromosomal instability (CIN), a hallmark of cancer. However, pathways that promote or prevent CENP-A mislocalization remain poorly defined. Here, we performed a genome-wide RNAi screen for regulators of CENP-A localization which identified DNAJC9, a J-domain protein implicated in histone H3-H4 protein folding, as a factor restricting CENP-A mislocalization. Cells lacking DNAJC9 exhibit mislocalization of CENP-A throughout the genome, and CIN phenotypes. Global interactome analysis showed that DNAJC9 depletion promotes the interaction of CENP-A with the DNA-replication-associated histone chaperone MCM2. CENP-A mislocalization upon DNAJC9 depletion was dependent on MCM2, defining MCM2 as a driver of CENP-A deposition at ectopic sites when H3-H4 supply chains are disrupted. Cells depleted for histone H3.3, also exhibit CENP-A mislocalization. In summary, we have defined novel factors that prevent mislocalization of CENP-A, and demonstrated that the integrity of H3-H4 supply chains regulated by histone chaperones such as DNAJC9 restrict CENP-A mislocalization and CIN.
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Grants
- 75N91019D00024 NCI NIH HHS
- HHSN261201500003I NCI NIH HHS
- ZIA BC 010822 HHS | NIH | NCI | Center for Cancer Research (CCR)
- ZIA BC 011704 HHS | NIH | NCI | Center for Cancer Research (CCR)
- 75N91019D00024 NCI NIH HHS
- HHSN261201500003I NCI NIH HHS
- 0135-00096B and 8020-00220B,EPIC-XS-823839,R146-A9159-16-S2 Independent Research Fund Denmark, European Union's Horizon 2020 research and innovation program, Danish Cancer Society
- ERC CoG 724436,R198-2015-269 and R313-2019-448,7016-00042B,NNF21OC0067425,NNF14CC0001 European Research Council, Lund-beck Foundation, Independent Research Fund Denmark, Novo Nordisk Foundation
- HHS | NIH | National Cancer Institute (NCI)
- Independent Research Fund Denmark, European Union’s Horizon 2020 research and innovation program, Danish Cancer Society
- NIH Intramural Research Program, Intramural Research Program of the National Center for Advancing Translational Sciences (NCATS)
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Affiliation(s)
- Vinutha Balachandra
- Yeast Genome Stability Section, Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roshan L Shrestha
- Yeast Genome Stability Section, Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Colin M Hammond
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
- Department of Molecular and Clinical Cancer Medicine, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
| | - Shinjen Lin
- Functional Genomics Laboratory, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, USA
| | - Ivo A Hendriks
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Subhash Chandra Sethi
- Yeast Genome Stability Section, Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Lu Chen
- Functional Genomics Laboratory, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, USA
| | - Samantha Sevilla
- Collaborative Bioinformatics Resource, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Natasha J Caplen
- Functional Genetics Section, Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Raj Chari
- Genome Modification Core (GMC), Frederick National Lab for Cancer Research, Frederick, MD, USA
| | - Tatiana S Karpova
- Optical Microscopy Core, Laboratory of Receptor Biology and Gene Expression, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Katherine McKinnon
- Flow Cytometry Core, Vaccine Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Matthew Am Todd
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Vishal Koparde
- Collaborative Bioinformatics Resource, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Ken Chih-Chien Cheng
- Functional Genomics Laboratory, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, USA
| | - Michael L Nielsen
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anja Groth
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Munira A Basrai
- Yeast Genome Stability Section, Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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13
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Hemagirri M, Chen Y, Gopinath SCB, Sahreen S, Adnan M, Sasidharan S. Crosstalk between protein misfolding and endoplasmic reticulum stress during ageing and their role in age-related disorders. Biochimie 2024; 221:159-181. [PMID: 37918463 DOI: 10.1016/j.biochi.2023.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Maintaining the proteome is crucial to retaining cell functionality and response to multiple intrinsic and extrinsic stressors. Protein misfolding increased the endoplasmic reticulum (ER) stress and activated the adaptive unfolded protein response (UPR) to restore cell homeostasis. Apoptosis occurs when ER stress is prolonged or the adaptive response fails. In healthy young cells, the ratio of protein folding machinery to quantities of misfolded proteins is balanced under normal circumstances. However, the age-related deterioration of the complex systems for handling protein misfolding is accompanied by ageing-related disruption of protein homeostasis, which results in the build-up of misfolded and aggregated proteins. This ultimately results in decreased cell viability and forms the basis of common age-related diseases called protein misfolding diseases. Proteins or protein fragments convert from their ordinarily soluble forms to insoluble fibrils or plaques in many of these disorders, which build up in various organs such as the liver, brain, or spleen. Alzheimer's, Parkinson's, type II diabetes, and cancer are diseases in this group commonly manifest in later life. Thus, protein misfolding and its prevention by chaperones and different degradation paths are becoming understood from molecular perspectives. Proteodynamics information will likely affect future interventional techniques to combat cellular stress and support healthy ageing by avoiding and treating protein conformational disorders. This review provides an overview of the diverse proteostasis machinery, protein misfolding, and ER stress involvement, which activates the UPR sensors. Here, we will discuss the crosstalk between protein misfolding and ER stress and their role in developing age-related diseases.
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Affiliation(s)
- Manisekaran Hemagirri
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Subash C B Gopinath
- Faculty of Chemical Engineering and Technology, Universiti Malaysia Perlis, Arau, 02600, Malaysia
| | - Sumaira Sahreen
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia
| | - Mohd Adnan
- Department of Biology, College of Science, University of Ha'il, Ha'il, P. O. Box 2440, Saudi Arabia.
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia.
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14
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Buchan JR. Stress granule and P-body clearance: Seeking coherence in acts of disappearance. Semin Cell Dev Biol 2024; 159-160:10-26. [PMID: 38278052 PMCID: PMC10939798 DOI: 10.1016/j.semcdb.2024.01.002] [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: 01/04/2024] [Accepted: 01/07/2024] [Indexed: 01/28/2024]
Abstract
Stress granules and P-bodies are conserved cytoplasmic biomolecular condensates whose assembly and composition are well documented, but whose clearance mechanisms remain controversial or poorly described. Such understanding could provide new insight into how cells regulate biomolecular condensate formation and function, and identify therapeutic strategies in disease states where aberrant persistence of stress granules in particular is implicated. Here, I review and compare the contributions of chaperones, the cytoskeleton, post-translational modifications, RNA helicases, granulophagy and the proteasome to stress granule and P-body clearance. Additionally, I highlight the potentially vital role of RNA regulation, cellular energy, and changes in the interaction networks of stress granules and P-bodies as means of eliciting clearance. Finally, I discuss evidence for interplay of distinct clearance mechanisms, suggest future experimental directions, and suggest a simple working model of stress granule clearance.
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Affiliation(s)
- J Ross Buchan
- Department of Molecular and Cellular Biology, University of Arizona, Tucson 85716, United States.
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15
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Felipe Perez R, Mochi G, Khan A, Woodford M. Mitochondrial Chaperone Code: Just warming up. Cell Stress Chaperones 2024; 29:483-496. [PMID: 38763405 PMCID: PMC11153887 DOI: 10.1016/j.cstres.2024.05.002] [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: 04/17/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024] Open
Abstract
More than 99% of the mitochondrial proteome is encoded by the nucleus and requires refolding following import. Therefore, mitochondrial proteins require the coordinated action of molecular chaperones for their folding and activation. Several heat shock protein (Hsp) molecular chaperones, including members of the Hsp27, Hsp40/70, and Hsp90 families, as well as the chaperonin complex Hsp60/10 have an established role in mitochondrial protein import and folding. The "Chaperone Code" describes the regulation of chaperone activity by dynamic post-translational modifications; however, little is known about the post-translational regulation of mitochondrial chaperones. Dissecting the regulation of chaperone function is essential for understanding their differential regulation in pathogenic conditions and the potential development of efficacious therapeutic strategies. Here, we summarize the recent literature on post-translational regulation of mitochondrial chaperones, the consequences for mitochondrial function, and potential implications for disease.
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Affiliation(s)
- R Felipe Perez
- Department of Urology, Upstate Medical University, Syracuse, NY, USA
| | - Gianna Mochi
- Department of Urology, Upstate Medical University, Syracuse, NY, USA; Department of Biochemistry & Molecular Biology, Upstate Medical University, Syracuse, NY, USA; Upstate Cancer Center, State University of New York, Upstate Medical University, Syracuse, NY, USA
| | - Ariba Khan
- Department of Urology, Upstate Medical University, Syracuse, NY, USA
| | - Mark Woodford
- Department of Urology, Upstate Medical University, Syracuse, NY, USA; Department of Biochemistry & Molecular Biology, Upstate Medical University, Syracuse, NY, USA; Upstate Cancer Center, State University of New York, Upstate Medical University, Syracuse, NY, USA.
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16
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Hipp MS, Hartl FU. Interplay of Proteostasis Capacity and Protein Aggregation: Implications for Cellular Function and Disease. J Mol Biol 2024:168615. [PMID: 38759929 DOI: 10.1016/j.jmb.2024.168615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
Eukaryotic cells are equipped with an intricate proteostasis network (PN), comprising nearly 3,000 components dedicated to preserving proteome integrity and sustaining protein homeostasis. This protective system is particularly important under conditions of external and intrinsic cell stress, where inherently dynamic proteins may unfold and lose functionality. A decline in proteostasis capacity is associated with the aging process, resulting in a reduced folding efficiency of newly synthesized proteins and a deficit in the cellular capacity to degrade misfolded proteins. A critical consequence of PN insufficiency is the accumulation of cytotoxic protein aggregates that underlie various age-related neurodegenerative conditions and other pathologies. By interfering with specific proteostasis components, toxic aggregates place an excessive burden on the PN's ability to maintain proteome integrity. This initiates a feed-forward loop, wherein the generation of misfolded and aggregated proteins ultimately leads to proteostasis collapse and cellular demise.
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Affiliation(s)
- Mark S Hipp
- Department of Biomedical Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan, 1, 9713 AV Groningen, the Netherlands; Research School of Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, the Netherlands; School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany.
| | - F Ulrich Hartl
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
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17
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Wu X, Zhang Z, Cui W, Han L, Liu Z, Song X, Tan J. The analysis of inducible family members in the water flea Daphnia magna led to the identification of an uncharacterized lineage of heat shock protein 70. Heliyon 2024; 10:e30288. [PMID: 38765176 PMCID: PMC11098801 DOI: 10.1016/j.heliyon.2024.e30288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 05/21/2024] Open
Abstract
To explore the function and evolutionary relationships of inducible heat shock protein 70 (Hsp70) in Daphnia magna, cDNAs of four Hsp70 family members (DmaHsp70, DmaHsp70-2, DmaHsp70-12, DmaHsp70-14) were cloned. While all DmaHsp70s possess three function domains, it is noteworthy that only DmaHsp70 ends with a "EEVD" motif. Phylogenetic analysis indicates that the Hsp70-12 lineage is distanced from the rest, and therefore it is an uncharacterized lineage of Hsp70. The differences in isoelectric point and 3-dimensional (3D) conformation of the N-terminal nucleotide binding domain (NBD) of DmaHsp70s further support the theory. DmaHsp70s exhibit varied motif distribution patterns and the logo sequences of motifs have diverse signature characteristics, indicating that different mechanisms are involved in the regulation of ATP binding and hydrolysis for the DmaHsp70s. Protein-protein network together with the predicted subcellular locations of DmaHsp70s suggest that they likely fulfill distinct roles in cells. The transcription of four DmaHsp70s were changed during the recovery stage after thermal stress or oxidative stress. But the expression pattern of them were dissimilar. Collectively, these results collectively elucidated the identification of a previously uncharacterizedHsp70 lineage in animal and extended our understanding of the Hsp70 family.
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Affiliation(s)
- Xiangyang Wu
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zhiwei Zhang
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Wenfeng Cui
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Linfei Han
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zijie Liu
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Xiaojun Song
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jiabo Tan
- Laboratory of Comparative Immunology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
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18
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Chakafana G, Middlemiss CJ, Zininga T, Shonhai A. Swapping the linkers of canonical Hsp70 and Hsp110 chaperones compromises both self-association and client selection. Heliyon 2024; 10:e29690. [PMID: 38707424 PMCID: PMC11066147 DOI: 10.1016/j.heliyon.2024.e29690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 05/07/2024] Open
Abstract
Plasmodium falciparum heat shock protein 70-1 (PfHsp70-1) and PfHsp70-z are essential cytosol localised chaperones of the malaria parasite. The two chaperones functionally interact to drive folding of several parasite proteins. While PfHsp70-1 is regarded as a canonical Hsp70 chaperone, PfHsp70-z belongs to the Hsp110 subcluster. One of the distinctive features of PfHsp70-z is its unique linker segment which delineates it from canonical Hsp70. In the current study, we elucidated the role of the linker in regulating Hsp70 self-association and client selection. Using recombinant forms of PfHsp70-1, PfHsp70-z and E. coli Hsp70 (DnaK) and their respective linker switch mutants we investigated self-association of the chaperones using surface plasmon resonance (SPR) analysis. The effect of the changes on client selectivity was investigated on DnaK and its mutant through co-affinity chromatography coupled to LC-MS analysis. Our findings demonstrated that the linker is important for both Hsp70 self-association and client binding.
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Affiliation(s)
- Graham Chakafana
- Department of Biochemistry, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
- Department of Chemistry and Biochemistry, Hampton University, 23668, Virginia, USA
| | - Caitlin J. Middlemiss
- Department of Biochemistry, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Tawanda Zininga
- Department of Biochemistry, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
- Department of Biochemistry, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Addmore Shonhai
- Department of Biochemistry, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
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19
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Prodromou SI, Chatzopoulou F, Saiti A, Giannopoulos-Dimitriou A, Koudoura LA, Pantazaki AA, Chatzidimitriou D, Vasiliou V, Vizirianakis IS. Hepatotoxicity assessment of innovative nutritional supplements based on olive-oil formulations enriched with natural antioxidants. Front Nutr 2024; 11:1388492. [PMID: 38812942 PMCID: PMC11133736 DOI: 10.3389/fnut.2024.1388492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/25/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction This study focuses on the assessment of extra virgin olive-oil and olive fruit-based formulations enriched with natural antioxidants as potential nutritional supplements for alleviating symptoms and long-term consequences of illnesses whose molecular pathophysiology is affected by oxidative stress and inflammation, such as Alzheimer's disease (AD). Methods Besides evaluating cell viability and proliferation capacity of human hepatocellular carcinoma HepG2 cells exposed to formulations in culture, hepatotoxicity was also considered as an additional safety measure using quantitative real-time PCR on RNA samples isolated from the cell cultures and applying approaches of targeted molecular analysis to uncover potential pathway effects through gene expression profiling. Furthermore, the formulations investigated in this work contrast the addition of natural extract with chemical forms and evaluate the antioxidant delivery mode on cell toxicity. Results The results indicate minimal cellular toxicity and a significant beneficial impact on metabolic molecular pathways in HepG2 cell cultures, thus paving the way for innovative therapeutic strategies using olive-oil and antioxidants in dietary supplements to minimize the long-term effects of oxidative stress and inflammatory signals in individuals being suffered by disorders like AD. Discussion Overall, the experimental design and the data obtained support the notion of applying innovative molecular methodologies and research techniques to evidently advance the delivery, as well as the scientific impact and validation of nutritional supplements and dietary products to improve public health and healthcare outcomes.
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Affiliation(s)
- Sofia I. Prodromou
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Fani Chatzopoulou
- Laboratory of Microbiology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Labnet Laboratories, Department of Molecular Biology and Genetics, Thessaloniki, Greece
| | - Aikaterini Saiti
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Loukia A. Koudoura
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia A. Pantazaki
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Chatzidimitriou
- Laboratory of Microbiology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT, United States
| | - Ioannis S. Vizirianakis
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Department of Health Sciences, School of Health and Life Sciences, University of Nicosia, Nicosia, Cyprus
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20
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Zhang S, Huang L, Zeng Y, Gao G, Wu H, Li D, Guo R. SLC38A3 Promotes the Proliferation and Migration of Tumor Cells and Predicts Poor Prognosis in Colorectal Cancer. ACS OMEGA 2024; 9:21116-21126. [PMID: 38764627 PMCID: PMC11097367 DOI: 10.1021/acsomega.4c00901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/05/2024] [Accepted: 04/24/2024] [Indexed: 05/21/2024]
Abstract
Previous studies have revealed that abnormal expressions of membrane transporters were associated with colorectal cancer (CRC). We herein performed a comprehensive bioinformatics analysis to identify the key transporter protein-related genes involved in CRC and potential mechanisms. Differentially expressed transporter protein-related genes (DE-TPRGs) were identified from CRC and normal samples using The Cancer Genome Atlas database. SLC38A3 expression was validated by immunohistochemistry and RT-qPCR, and the potential mechanism was explored. A total of 63 DE-TPRGs (29 up-regulated and 34 down-regulated) were screened. Inside, ABCC2, ABCG2, SLC4A4, SLC9A3, SLC15A1, and SLC38A3 were identified as hub genes. SLC38A3 is indeed upregulated in colorectal cancer patients. Furthermore, we found that knockdown of SLC38A3 inhibited the proliferation and migration of HCT116 cells, and Hsp70 ATPase activator could rescue it. Overall, SLC38A3 is a novel potential biomarker involved in CRC progression and promotes the proliferation and migration of tumor cells by positively regulating the function of Hsp70.
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Affiliation(s)
- Siyi Zhang
- Department
of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Lingli Huang
- Department
of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Youjie Zeng
- Department
of Anesthesiology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Ge Gao
- Department
of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Hui Wu
- Department
of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Dai Li
- Phase
I Clinical Tria Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National
Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410005, China
| | - Ren Guo
- Department
of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
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21
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Lin J, Carman PJ, Gambogi CW, Kendsersky NM, Chuang E, Gates SN, Yokom AL, Rizo AN, Southworth DR, Shorter J. Design principles to tailor Hsp104 therapeutics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.26.591398. [PMID: 38712168 PMCID: PMC11071516 DOI: 10.1101/2024.04.26.591398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
The hexameric AAA+ disaggregase, Hsp104, collaborates with Hsp70 and Hsp40 via its autoregulatory middle domain (MD) to solubilize aggregated protein conformers. However, how ATP- or ADP-specific MD configurations regulate Hsp104 hexamers remains poorly understood. Here, we define an ATP-specific network of interprotomer contacts between nucleotide-binding domain 1 (NBD1) and MD helix L1, which tunes Hsp70 collaboration. Manipulating this network can: (a) reduce Hsp70 collaboration without enhancing activity; (b) generate Hsp104 hypomorphs that collaborate selectively with class B Hsp40s; (c) produce Hsp70-independent potentiated variants; or (d) create species barriers between Hsp104 and Hsp70. Conversely, ADP-specific intraprotomer contacts between MD helix L2 and NBD1 restrict activity, and their perturbation frequently potentiates Hsp104. Importantly, adjusting the NBD1:MD helix L1 rheostat via rational design enables finely tuned collaboration with Hsp70 to safely potentiate Hsp104, minimize off-target toxicity, and counteract FUS proteinopathy in human cells. Thus, we establish important design principles to tailor Hsp104 therapeutics.
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Affiliation(s)
- JiaBei Lin
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
| | - Peter J. Carman
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Biochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
| | - Craig W. Gambogi
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Biochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
| | - Nathan M. Kendsersky
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Pharmacology Graduate Group Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
| | - Edward Chuang
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Pharmacology Graduate Group Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
| | - Stephanie N. Gates
- Graduate Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109. U.S.A
- Current address: Department of Biochemistry, University of Missouri, Columbia, MO 65211. U.S.A
| | - Adam L. Yokom
- Graduate Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109. U.S.A
- Current address: Department of Biochemistry, University of Missouri, Columbia, MO 65211. U.S.A
| | - Alexandrea N. Rizo
- Graduate Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109. U.S.A
| | - Daniel R. Southworth
- Department of Biochemistry and Biophysics and the Institute for Neurodegenerative Diseases, University of California San Francisco, San Francisco, CA 94158. U.S.A
| | - James Shorter
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Biochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
- Pharmacology Graduate Group Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104. U.S.A
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22
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Buggiani J, Meinnel T, Giglione C, Frottin F. Advances in nuclear proteostasis of metazoans. Biochimie 2024:S0300-9084(24)00081-6. [PMID: 38642824 DOI: 10.1016/j.biochi.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 04/22/2024]
Abstract
The proteostasis network and associated protein quality control (PQC) mechanisms ensure proteome functionality and are essential for cell survival. A distinctive feature of eukaryotic cells is their high degree of compartmentalization, requiring specific and adapted proteostasis networks for each compartment. The nucleus, essential for maintaining the integrity of genetic information and gene transcription, is one such compartment. While PQC mechanisms have been investigated for decades in the cytoplasm and the endoplasmic reticulum, our knowledge of nuclear PQC pathways is only emerging. Recent developments in the field have underscored the importance of spatially managing aberrant proteins within the nucleus. Upon proteotoxic stress, misfolded proteins and PQC effectors accumulate in various nuclear membrane-less organelles. Beyond bringing together effectors and substrates, the biophysical properties of these organelles allow novel PQC functions. In this review, we explore the specificity of the nuclear compartment, the effectors of the nuclear proteostasis network, and the PQC roles of nuclear membrane-less organelles in metazoans.
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Affiliation(s)
- Julia Buggiani
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
| | - Thierry Meinnel
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
| | - Carmela Giglione
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
| | - Frédéric Frottin
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France.
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23
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Zoltsman G, Dang TL, Kuchersky M, Faust O, Silva MS, Ilani T, Wentink AS, Bukau B, Rosenzweig R. A unique chaperoning mechanism in class A JDPs recognizes and stabilizes mutant p53. Mol Cell 2024; 84:1512-1526.e9. [PMID: 38508184 DOI: 10.1016/j.molcel.2024.02.018] [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: 02/22/2023] [Revised: 12/14/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024]
Abstract
J-domain proteins (JDPs) constitute a large family of molecular chaperones that bind a broad spectrum of substrates, targeting them to Hsp70, thus determining the specificity of and activating the entire chaperone functional cycle. The malfunction of JDPs is therefore inextricably linked to myriad human disorders. Here, we uncover a unique mechanism by which chaperones recognize misfolded clients, present in human class A JDPs. Through a newly identified β-hairpin site, these chaperones detect changes in protein dynamics at the initial stages of misfolding, prior to exposure of hydrophobic regions or large structural rearrangements. The JDPs then sequester misfolding-prone proteins into large oligomeric assemblies, protecting them from aggregation. Through this mechanism, class A JDPs bind destabilized p53 mutants, preventing clearance of these oncoproteins by Hsp70-mediated degradation, thus promoting cancer progression. Removal of the β-hairpin abrogates this protective activity while minimally affecting other chaperoning functions. This suggests the class A JDP β-hairpin as a highly specific target for cancer therapeutics.
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Affiliation(s)
- Guy Zoltsman
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Thi Lieu Dang
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany
| | - Miriam Kuchersky
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Ofrah Faust
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Micael S Silva
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Tal Ilani
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Anne S Wentink
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany; Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333CC Leiden, the Netherlands
| | - Bernd Bukau
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany.
| | - Rina Rosenzweig
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel.
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24
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Adupa V, Ustyantseva E, Kampinga HH, Onck PR. Tertiary structure and conformational dynamics of the anti-amyloidogenic chaperone DNAJB6b at atomistic resolution. Nat Commun 2024; 15:3285. [PMID: 38627370 PMCID: PMC11021509 DOI: 10.1038/s41467-024-46587-z] [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: 06/15/2023] [Accepted: 03/01/2024] [Indexed: 04/19/2024] Open
Abstract
DNAJB6b is a molecular chaperone of the heat shock protein network, shown to play a crucial role in preventing aggregation of several disease-related intrinsically disordered proteins. Using homology modeling and microsecond-long all-atom molecular dynamics (MD) simulations, we show that monomeric DNAJB6b is a transiently interconverting protein cycling between three states: a closed state, an open state (both abundant), and a less abundant extended state. Interestingly, the reported regulatory autoinhibitory anchor between helix V in the G/F1 region and helices II/III of the J-domain, which obstructs the access of Hsp70 to the J-domain remains present in all three states. This possibly suggests a mechanistically intriguing regulation in which DNAJB6b only becomes exposed when loaded with substrates that require Hsp70 processing. Our MD results of DNAJB6b carrying mutations in the G/F1 region that are linked to limb-girdle muscular dystrophy type D1 (LGMDD1) show that this G/F1 region becomes highly dynamic, pointing towards a spontaneous release of the autoinhibitory helix V from helices II/III. This would increase the probability of non-functional Hsp70 interactions to DNAJB6b without substrates. Our cellular data indeed confirm that non-substrate loaded LGMDD1 mutants have aberrant interactions with Hsp70.
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Affiliation(s)
- Vasista Adupa
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
| | - Elizaveta Ustyantseva
- Department of Biomedical Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Harm H Kampinga
- Department of Biomedical Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Patrick R Onck
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands.
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25
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Pan Z, Zhuo L, Wan TY, Chen RY, Li YZ. DnaK duplication and specialization in bacteria correlates with increased proteome complexity. mSystems 2024; 9:e0115423. [PMID: 38530057 PMCID: PMC11019930 DOI: 10.1128/msystems.01154-23] [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: 10/28/2023] [Accepted: 03/10/2024] [Indexed: 03/27/2024] Open
Abstract
The chaperone 70 kDa heat shock protein (Hsp70) is important for cells from bacteria to humans to maintain proteostasis, and all eukaryotes and several prokaryotes encode Hsp70 paralogs. Although the mechanisms of Hsp70 function have been clearly illuminated, the function and evolution of Hsp70 paralogs is not well studied. DnaK is a highly conserved bacterial Hsp70 family. Here, we show that dnaK is present in 98.9% of bacterial genomes, and 6.4% of them possess two or more DnaK paralogs. We found that the duplication of dnaK is positively correlated with an increase in proteomic complexity (proteome size, number of domains). We identified the interactomes of the two DnaK paralogs of Myxococcus xanthus DK1622 (MxDnaKs), which revealed that they are mostly nonoverlapping, although both prefer α and β domain proteins. Consistent with the entire M. xanthus proteome, MxDnaK substrates have both significantly more multi-domain proteins and a higher isoelectric point than that of Escherichia coli, which encodes a single DnaK homolog. MxDnaK1 is transcriptionally upregulated in response to heat shock and prefers to bind cytosolic proteins, while MxDnaK2 is downregulated by heat shock and is more associated with membrane proteins. Using domain swapping, we show that the nucleotide-binding domain and the substrate-binding β domain are responsible for the significant differences in DnaK interactomes, and the nucleotide binding domain also determines the dimerization of MxDnaK2, but not MxDnaK1. Our work suggests that bacterial DnaK has been duplicated in order to deal with a more complex proteome, and that this allows evolution of distinct domains to deal with different subsets of target proteins.IMPORTANCEAll eukaryotic and ~40% of prokaryotic species encode multiple 70 kDa heat shock protein (Hsp70) homologs with similar but diversified functions. Here, we show that duplication of canonical Hsp70 (DnaK in prokaryotes) correlates with increasing proteomic complexity and evolution of particular regions of the protein. Using the Myxococcus xanthus DnaK duplicates as a case, we found that their substrate spectrums are mostly nonoverlapping, and are both consistent to that of Escherichia coli DnaK in structural and molecular characteristics, but show differential enrichment of membrane proteins. Domain/region swapping demonstrated that the nucleotide-binding domain and the β substrate-binding domain (SBDβ), but not the SBDα or disordered C-terminal tail region, are responsible for this functional divergence. This work provides the first direct evidence for regional evolution of DnaK paralogs.
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Affiliation(s)
- Zhuo Pan
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, China
| | - Li Zhuo
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, China
- Suzhou Research Institute, Shandong University, Suzhou, China
| | - Tian-yu Wan
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, China
| | - Rui-yun Chen
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, China
| | - Yue-zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, China
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26
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McKaige EA, Lee C, Calcinotto V, Giri S, Crawford S, McGrath MJ, Ramm G, Bryson-Richardson RJ. Mitochondrial abnormalities contribute to muscle weakness in a Dnajb6 deficient zebrafish model. Hum Mol Genet 2024:ddae061. [PMID: 38621658 DOI: 10.1093/hmg/ddae061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/28/2024] [Accepted: 03/28/2024] [Indexed: 04/17/2024] Open
Abstract
Mutations in DNAJB6 are a well-established cause of limb girdle muscular dystrophy type D1 (LGMD D1). Patients with LGMD D1 develop progressive muscle weakness with histology showing fibre damage, autophagic vacuoles, and aggregates. Whilst there are many reports of LGMD D1 patients, the role of DNAJB6 in the muscle is still unclear. In this study, we developed a loss of function zebrafish model in order to investigate the role of Dnajb6. Using a double dnajb6a and dnajb6b mutant model, we show that loss of Dnajb6 leads to a late onset muscle weakness. Interestingly, we find that adult fish lacking Dnajb6 do not have autophagy or myofibril defects, however, they do show mitochondrial changes and damage. This study demonstrates that loss of Dnajb6 causes mitochondrial defects and suggests that this contributes to muscle weakness in LGMD D1. These findings expand our knowledge of the role of Dnajb6 in the muscle and provides a model to screen novel therapies for LGMD D1.
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Affiliation(s)
- Emily A McKaige
- School of Biological Sciences Monash University, 25 Rainforest Walk, Clayton, VIC 3800, Australia
| | - Clara Lee
- School of Biological Sciences Monash University, 25 Rainforest Walk, Clayton, VIC 3800, Australia
| | - Vanessa Calcinotto
- School of Biological Sciences Monash University, 25 Rainforest Walk, Clayton, VIC 3800, Australia
| | - Saveen Giri
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, 23 Innovation Walk, Clayton, VIC 3800, Australia
| | - Simon Crawford
- Monash Ramaciotti Centre for Cryo Electron Microscopy, Monash University, 15 Innovation Walk, Clayton, VIC 3800, Australia
| | - Meagan J McGrath
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, 23 Innovation Walk, Clayton, VIC 3800, Australia
| | - Georg Ramm
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, 23 Innovation Walk, Clayton, VIC 3800, Australia
- Monash Ramaciotti Centre for Cryo Electron Microscopy, Monash University, 15 Innovation Walk, Clayton, VIC 3800, Australia
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27
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Kunachowicz D, Król-Kulikowska M, Raczycka W, Sleziak J, Błażejewska M, Kulbacka J. Heat Shock Proteins, a Double-Edged Sword: Significance in Cancer Progression, Chemotherapy Resistance and Novel Therapeutic Perspectives. Cancers (Basel) 2024; 16:1500. [PMID: 38672583 PMCID: PMC11048091 DOI: 10.3390/cancers16081500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Heat shock proteins (Hsps) are involved in one of the adaptive mechanisms protecting cells against environmental and metabolic stress. Moreover, the large role of these proteins in the carcinogenesis process, as well as in chemoresistance, was noticed. This review aims to draw attention to the possibilities of using Hsps in developing new cancer therapy methods, as well as to indicate directions for future research on this topic. In order to discuss this matter, a thorough review of the latest scientific literature was carried out, taking into account the importance of selected proteins from the Hsp family, including Hsp27, Hsp40, Hsp60, Hsp70, Hsp90 and Hsp110. One of the more characteristic features of all Hsps is that they play a multifaceted role in cancer progression, which makes them an obvious target for modern anticancer therapy. Some researchers emphasize the importance of directly inhibiting the action of these proteins. In turn, others point to their possible use in the design of cancer vaccines, which would work by inducing an immune response in various types of cancer. Due to these possibilities, it is believed that the use of Hsps may contribute to the progress of oncoimmunology, and thus help in the development of modern anticancer therapies, which would be characterized by higher effectiveness and lower toxicity to the patients.
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Affiliation(s)
- Dominika Kunachowicz
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; (D.K.); (M.K.-K.)
| | - Magdalena Król-Kulikowska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; (D.K.); (M.K.-K.)
| | - Wiktoria Raczycka
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Jakub Sleziak
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Marta Błażejewska
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre for Innovative Medicine Santariškių g. 5, LT-08406 Vilnius, Lithuania
- DIVE IN AI, 53-307 Wroclaw, Poland
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28
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Ziegelhoffer T, Verma AK, Delewski W, Schilke BA, Hill PM, Pitek M, Marszalek J, Craig EA. NAC and Zuotin/Hsp70 chaperone systems coexist at the ribosome tunnel exit in vivo. Nucleic Acids Res 2024; 52:3346-3357. [PMID: 38224454 PMCID: PMC11014269 DOI: 10.1093/nar/gkae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/23/2023] [Accepted: 01/02/2024] [Indexed: 01/16/2024] Open
Abstract
The area surrounding the tunnel exit of the 60S ribosomal subunit is a hub for proteins involved in maturation and folding of emerging nascent polypeptide chains. How different factors vie for positioning at the tunnel exit in the complex cellular environment is not well understood. We used in vivo site-specific cross-linking to approach this question, focusing on two abundant factors-the nascent chain-associated complex (NAC) and the Hsp70 chaperone system that includes the J-domain protein co-chaperone Zuotin. We found that NAC and Zuotin can cross-link to each other at the ribosome, even when translation initiation is inhibited. Positions yielding NAC-Zuotin cross-links indicate that when both are present the central globular domain of NAC is modestly shifted from the mutually exclusive position observed in cryogenic electron microscopy analysis. Cross-linking results also suggest that, even in NAC's presence, Hsp70 can situate in a manner conducive for productive nascent chain interaction-with the peptide binding site at the tunnel exit and the J-domain of Zuotin appropriately positioned to drive stabilization of nascent chain binding. Overall, our results are consistent with the idea that, in vivo, the NAC and Hsp70 systems can productively position on the ribosome simultaneously.
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Affiliation(s)
- Thomas Ziegelhoffer
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
| | - Amit K Verma
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
| | - Wojciech Delewski
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
| | - Brenda A Schilke
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
| | - Paige M Hill
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
| | - Marcin Pitek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk 80-307, Poland
| | - Jaroslaw Marszalek
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk 80-307, Poland
| | - Elizabeth A Craig
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI 53726, USA
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29
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Rebeaud ME, Tiwari S, Fauvet B, Mohr A, Goloubinoff P, De Los Rios P. Autorepression of yeast Hsp70 cochaperones by intramolecular interactions involving their J-domains. Cell Stress Chaperones 2024; 29:338-348. [PMID: 38521349 PMCID: PMC10999819 DOI: 10.1016/j.cstres.2024.03.008] [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: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/25/2024] Open
Abstract
The 70 kDa heat shock protein (Hsp70) chaperones control protein homeostasis in all ATP-containing cellular compartments. J-domain proteins (JDPs) coevolved with Hsp70s to trigger ATP hydrolysis and catalytically upload various substrate polypeptides in need to be structurally modified by the chaperone. Here, we measured the protein disaggregation and refolding activities of the main yeast cytosolic Hsp70, Ssa1, in the presence of its most abundant JDPs, Sis1 and Ydj1, and two swap mutants, in which the J-domains have been interchanged. The observed differences by which the four constructs differently cooperate with Ssa1 and cooperate with each other, as well as their observed intrinsic ability to bind misfolded substrates and trigger Ssa1's ATPase, indicate the presence of yet uncharacterized intramolecular dynamic interactions between the J-domains and the remaining C-terminal segments of these proteins. Taken together, the data suggest an autoregulatory role to these intramolecular interactions within both type A and B JDPs, which might have evolved to reduce energy-costly ATPase cycles by the Ssa1-4 chaperones that are the most abundant Hsp70s in the yeast cytosol.
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Affiliation(s)
- Mathieu E Rebeaud
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Vaud, Switzerland; Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland
| | - Satyam Tiwari
- Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland
| | - Bruno Fauvet
- Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland
| | - Adelaïde Mohr
- Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland
| | - Pierre Goloubinoff
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Vaud, Switzerland.
| | - Paolo De Los Rios
- Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland; Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne - EPFL, 1015 Lausanne, Vaud, Switzerland.
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30
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Desai M, Hemant, Deo A, Naik J, Dhamale P, Kshirsagar A, Bose T, Majumdar A. Mrj is a chaperone of the Hsp40 family that regulates Orb2 oligomerization and long-term memory in Drosophila. PLoS Biol 2024; 22:e3002585. [PMID: 38648719 PMCID: PMC11034981 DOI: 10.1371/journal.pbio.3002585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 03/12/2024] [Indexed: 04/25/2024] Open
Abstract
Orb2 the Drosophila homolog of cytoplasmic polyadenylation element binding (CPEB) protein forms prion-like oligomers. These oligomers consist of Orb2A and Orb2B isoforms and their formation is dependent on the oligomerization of the Orb2A isoform. Drosophila with a mutation diminishing Orb2A's prion-like oligomerization forms long-term memory but fails to maintain it over time. Since this prion-like oligomerization of Orb2A plays a crucial role in the maintenance of memory, here, we aim to find what regulates this oligomerization. In an immunoprecipitation-based screen, we identify interactors of Orb2A in the Hsp40 and Hsp70 families of proteins. Among these, we find an Hsp40 family protein Mrj as a regulator of the conversion of Orb2A to its prion-like form. Mrj interacts with Hsp70 proteins and acts as a chaperone by interfering with the aggregation of pathogenic Huntingtin. Unlike its mammalian homolog, we find Drosophila Mrj is neither an essential gene nor causes any gross neurodevelopmental defect. We observe a loss of Mrj results in a reduction in Orb2 oligomers. Further, Mrj knockout exhibits a deficit in long-term memory and our observations suggest Mrj is needed in mushroom body neurons for the regulation of long-term memory. Our work implicates a chaperone Mrj in mechanisms of memory regulation through controlling the oligomerization of Orb2A and its association with the translating ribosomes.
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Affiliation(s)
- Meghal Desai
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Hemant
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Ankita Deo
- Institute of Bioinformatics and Biotechnology (IBB), Savitribai Phule Pune University, Pune, India
| | - Jagyanseni Naik
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Prathamesh Dhamale
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Avinash Kshirsagar
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Tania Bose
- Institute of Bioinformatics and Biotechnology (IBB), Savitribai Phule Pune University, Pune, India
| | - Amitabha Majumdar
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
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Sahu W, Bai T, Das A, Mukherjee S, Prusty A, Mallick NR, Elangovan S, Reddy KS. Plasmodium falciparum J-dot localized J domain protein A8iJp modulates the chaperone activity of human HSPA8. FEBS Lett 2024; 598:818-836. [PMID: 38418371 DOI: 10.1002/1873-3468.14836] [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: 09/13/2023] [Revised: 01/25/2024] [Accepted: 02/04/2024] [Indexed: 03/01/2024]
Abstract
Plasmodium falciparum renovates the host erythrocyte to survive during intraerythrocytic development. This renovation requires many parasite proteins to unfold and move outside the parasitophorous vacuolar membrane, and chaperone-regulated protein folding becomes essential for the exported proteins to function. We report on a type-IV J domain protein (JDP), PF3D7_1401100, which we found to be processed before export and trafficked inside the lumen of parasite-derived structures known as J-dots. We found this protein to have holdase activity, as well as stimulate the ATPase and aggregation suppression activity of the human HSP70 chaperone HsHSPA8; thus, we named it "HSPA8-interacting J protein" (A8iJp). Moreover, we found a subset of HsHSPA8 to co-localize with A8iJp inside the infected human erythrocyte. Our results suggest that A8iJp modulates HsHSPA8 chaperone activity and may play an important role in host erythrocyte renovation.
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Affiliation(s)
- Welka Sahu
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Tapaswini Bai
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Aleena Das
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Subhadip Mukherjee
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Aradhana Prusty
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Nipa Rani Mallick
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Selvakumar Elangovan
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - K Sony Reddy
- School of Biotechnology, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
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Liu C, Chen B, Xu P, Yang J, Nip C, Wang L, Shen Y, Ning S, Shang Y, Corey E, Gao AC, Gestwicki J, Wei Q, Liu L. Plexin D1 emerges as a novel target in the development of neural lineage plasticity in treatment-resistant prostate cancer. RESEARCH SQUARE 2024:rs.3.rs-4095949. [PMID: 38585965 PMCID: PMC10996809 DOI: 10.21203/rs.3.rs-4095949/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Treatment-induced neuroendocrine prostate cancer (t-NEPC) often arises from adenocarcinoma via lineage plasticity in response to androgen receptor signaling inhibitors, such as enzalutamide. However, the specific regulators and targets involved in the transition to NEPC are not well understood. Plexin D1 (PLXND1) is a cellular receptor of the semaphorin (SEMA) family that plays important roles in modulating the cytoskeleton and cell adhesion. Here, we found that PLXND1 is highly expressed and positively correlated with neuroendocrine markers in patients with NEPC. High PLXND1 expression is associated with poorer prognosis in prostate cancer patients. Additionally, PLXND1 was upregulated and negatively regulated by androgen receptor signaling in enzalutamide-resistant cells. Knockdown or knockout of PLXND1 inhibit neural lineage pathways, suppressing NEPC cell proliferation, PDX tumor organoid viability, and xenograft tumor growth. Mechanistically, the chaperone protein HSP70 regulates PLXND1 protein stability through degradation, and inhibition of HSP70 decreases PLXND1 expression and NEPC organoid growth. In summary, our findings suggest that PLXND1 could be a new therapeutic target and molecular indicator for NEPC.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Qiang Wei
- West China Hospital of Sichuan University
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Mattos-Graner RO, Klein MI, Alves LA. The complement system as a key modulator of the oral microbiome in health and disease. Crit Rev Microbiol 2024; 50:138-167. [PMID: 36622855 DOI: 10.1080/1040841x.2022.2163614] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/10/2023]
Abstract
In this review, we address the interplay between the complement system and host microbiomes in health and disease, focussing on oral bacteria known to contribute to homeostasis or to promote dysbiosis associated with dental caries and periodontal diseases. Host proteins modulating complement activities in the oral environment and expression profiles of complement proteins in oral tissues were described. In addition, we highlight a sub-set of bacterial proteins involved in complement evasion and/or dysregulation previously characterized in pathogenic species (or strains), but further conserved among prototypical commensal species of the oral microbiome. Potential roles of these proteins in host-microbiome homeostasis and in the emergence of commensal strain lineages with increased virulence were also addressed. Finally, we provide examples of how commensal bacteria might exploit the complement system in competitive or cooperative interactions within the complex microbial communities of oral biofilms. These issues highlight the need for studies investigating the effects of the complement system on bacterial behaviour and competitiveness during their complex interactions within oral and extra-oral host sites.
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Affiliation(s)
- Renata O Mattos-Graner
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Marlise I Klein
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Lívia Araújo Alves
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
- School of Dentistry, Cruzeiro do Sul University (UNICSUL), Sao Paulo, Brazil
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Song T, Zhang H, Zhao Q, Hu Z, Wang Z, Song Y, Zhang Z. Small molecule inhibitor targeting the Hsp70-Bim protein-protein interaction in estrogen receptor-positive breast cancer overcomes tamoxifen resistance. Breast Cancer Res 2024; 26:33. [PMID: 38409088 PMCID: PMC10895875 DOI: 10.1186/s13058-024-01790-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 02/15/2024] [Indexed: 02/28/2024] Open
Abstract
INTRODUCTION Estrogen receptor (ER) positive patients compromise about 70% of breast cancers. Tamoxifen, an antagonist of ERα66 (the classic ER), is the most effective and the standard first-line drug. However, its efficacy is limited by the development of acquired resistance. METHODS A specific inhibitor of Hsp70-Bim protein-protein interaction (PPI), S1g-2, together with an inhibitor of Hsp70-Bag3 PPI, MKT-077 and an ATP-competitive inhibitor VER155008, were used as chemical tools. Cell viability assays, co-immunoprecipitation and gene knockdown were used to investigate the role of Hsp70 in tamoxifen resistance. A xenograft model was established in which tamoxifen-resistant breast cancer (MCF-7/TAM-R) cells maintained in the presence of 5 μM tamoxifen were subcutaneously inoculated. The anti-tumor efficiency of S1g-2 was measured after a daily injection of 0.8 mg/kg for 14 days. RESULTS It was revealed that Hsp70-Bim PPI protects ERα-positive breast cancer from tamoxifen-induced apoptosis through binding and stabilizing ERα36, rather than ERα66, resulting in sustained EGFR mRNA and protein expression. Disruption of Hsp70-Bim PPI and downregulation of ERα36 expression in tumor samples are consistent with the in vitro functions of S1g-2, resulting in about a three-fold reduction in tumor volume. CONCLUSIONS The in vivo activity and safety of S1g-2 illustrated that it is a potential strategy for Hsp70-Bim disruption to overcome tamoxifen-resistant ER-positive breast cancer.
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Affiliation(s)
- Ting Song
- Cancer Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian, Liaoning, China.
| | - Hong Zhang
- Cancer Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian, Liaoning, China
| | - Qicheng Zhao
- Cancer Rehabilitation Center, Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tong Ji University, Shanghai, China
| | - Zhiyuan Hu
- School of Life Science and Technology, Dalian University of Technology, Dalian, Liaoning, China
| | - Ziqian Wang
- Cancer Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian, Liaoning, China
| | - Yang Song
- Central Hospital of Dalian University of Technology, Dalian, Liaoning, China
| | - Zhichao Zhang
- Cancer Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian, Liaoning, China.
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Lechuga S, Marino-Melendez A, Naydenov NG, Zafar A, Braga-Neto MB, Ivanov AI. Regulation of Epithelial and Endothelial Barriers by Molecular Chaperones. Cells 2024; 13:370. [PMID: 38474334 PMCID: PMC10931179 DOI: 10.3390/cells13050370] [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: 01/05/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
The integrity and permeability of epithelial and endothelial barriers depend on the formation of tight junctions, adherens junctions, and a junction-associated cytoskeleton. The establishment of this junction-cytoskeletal module relies on the correct folding and oligomerization of its protein components. Molecular chaperones are known regulators of protein folding and complex formation in different cellular compartments. Mammalian cells possess an elaborate chaperone network consisting of several hundred chaperones and co-chaperones. Only a small part of this network has been linked, however, to the regulation of intercellular adhesions, and the systematic analysis of chaperone functions at epithelial and endothelial barriers is lacking. This review describes the functions and mechanisms of the chaperone-assisted regulation of intercellular junctions. The major focus of this review is on heat shock protein chaperones, their co-chaperones, and chaperonins since these molecules are the focus of the majority of the articles published on the chaperone-mediated control of tissue barriers. This review discusses the roles of chaperones in the regulation of the steady-state integrity of epithelial and vascular barriers as well as the disruption of these barriers by pathogenic factors and extracellular stressors. Since cytoskeletal coupling is essential for junctional integrity and remodeling, chaperone-assisted assembly of the actomyosin cytoskeleton is also discussed.
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Affiliation(s)
- Susana Lechuga
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Armando Marino-Melendez
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Nayden G. Naydenov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Atif Zafar
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Manuel B. Braga-Neto
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Andrei I. Ivanov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
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Minoia M, Quintana-Cordero J, Jetzinger K, Kotan IE, Turnbull KJ, Ciccarelli M, Masser AE, Liebers D, Gouarin E, Czech M, Hauryliuk V, Bukau B, Kramer G, Andréasson C. Chp1 is a dedicated chaperone at the ribosome that safeguards eEF1A biogenesis. Nat Commun 2024; 15:1382. [PMID: 38360885 PMCID: PMC10869706 DOI: 10.1038/s41467-024-45645-w] [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: 06/02/2023] [Accepted: 01/29/2024] [Indexed: 02/17/2024] Open
Abstract
Cotranslational protein folding depends on general chaperones that engage highly diverse nascent chains at the ribosomes. Here we discover a dedicated ribosome-associated chaperone, Chp1, that rewires the cotranslational folding machinery to assist in the challenging biogenesis of abundantly expressed eukaryotic translation elongation factor 1A (eEF1A). Our results indicate that during eEF1A synthesis, Chp1 is recruited to the ribosome with the help of the nascent polypeptide-associated complex (NAC), where it safeguards eEF1A biogenesis. Aberrant eEF1A production in the absence of Chp1 triggers instant proteolysis, widespread protein aggregation, activation of Hsf1 stress transcription and compromises cellular fitness. The expression of pathogenic eEF1A2 variants linked to epileptic-dyskinetic encephalopathy is protected by Chp1. Thus, eEF1A is a difficult-to-fold protein that necessitates a biogenesis pathway starting with dedicated folding factor Chp1 at the ribosome to protect the eukaryotic cell from proteostasis collapse.
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Affiliation(s)
- Melania Minoia
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Jany Quintana-Cordero
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Katharina Jetzinger
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
- Center for Molecular Biology of the University of Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Ilgin Eser Kotan
- Center for Molecular Biology of the University of Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Kathryn Jane Turnbull
- Department of Clinical Microbiology, Rigshospitalet, 2200, Copenhagen, Denmark
- Department of Molecular Biology, Laboratory for Molecular Infection Medicine Sweden, Umeå Centre for Microbial Research, Science for Life Laboratory, Umeå University, Umeå, Sweden
| | - Michela Ciccarelli
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Anna E Masser
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Dorina Liebers
- Center for Molecular Biology of the University of Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Eloïse Gouarin
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Marius Czech
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Vasili Hauryliuk
- Science for Life Laboratory, Department of Experimental Medical Science, Lund University, Lund, Sweden
- University of Tartu, Institute of Technology, 50411, Tartu, Estonia
| | - Bernd Bukau
- Center for Molecular Biology of the University of Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Günter Kramer
- Center for Molecular Biology of the University of Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Claes Andréasson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
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37
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Cóppola-Segovia V, Reggiori F. Molecular Insights into Aggrephagy: Their Cellular Functions in the Context of Neurodegenerative Diseases. J Mol Biol 2024:168493. [PMID: 38360089 DOI: 10.1016/j.jmb.2024.168493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/17/2024]
Abstract
Protein homeostasis or proteostasis is an equilibrium of biosynthetic production, folding and transport of proteins, and their timely and efficient degradation. Proteostasis is guaranteed by a network of protein quality control systems aimed at maintaining the proteome function and avoiding accumulation of potentially cytotoxic proteins. Terminal unfolded and dysfunctional proteins can be directly turned over by the ubiquitin-proteasome system (UPS) or first amassed into aggregates prior to degradation. Aggregates can also be disposed into lysosomes by a selective type of autophagy known as aggrephagy, which relies on a set of so-called selective autophagy receptors (SARs) and adaptor proteins. Failure in eliminating aggregates, also due to defects in aggrephagy, can have devastating effects as underscored by several neurodegenerative diseases or proteinopathies, which are characterized by the accumulation of aggregates mostly formed by a specific disease-associated, aggregate-prone protein depending on the clinical pathology. Despite its medical relevance, however, the process of aggrephagy is far from being understood. Here we review the findings that have helped in assigning a possible function to specific SARs and adaptor proteins in aggrephagy in the context of proteinopathies, and also highlight the interplay between aggrephagy and the pathogenesis of proteinopathies.
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Affiliation(s)
| | - Fulvio Reggiori
- Department of Biomedicine, Aarhus University, Ole Worms Allé 4, 8000 Aarhus C, Denmark; Aarhus Institute of Advanced Studies (AIAS), Aarhus University, Høegh-Guldbergs Gade 6B, 8000 Aarhus C, Denmark.
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38
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Rios EI, Hunsberger IL, Johnson JL. Insights into Hsp90 mechanism and in vivo functions learned from studies in the yeast, Saccharomyces cerevisiae. Front Mol Biosci 2024; 11:1325590. [PMID: 38389899 PMCID: PMC10881880 DOI: 10.3389/fmolb.2024.1325590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
The molecular chaperone Hsp90 (Heat shock protein, 90 kDa) is an abundant and essential cytosolic protein required for the stability and/or folding of hundreds of client proteins. Hsp90, along with helper cochaperone proteins, assists client protein folding in an ATP-dependent pathway. The laboratory of Susan Lindquist, in collaboration with other researchers, was the first to establish the yeast Saccharomyces cerevisiae as a model organism to study the functional interaction between Hsp90 and clients. Important insights from studies in her lab were that Hsp90 is essential, and that Hsp90 functions and cochaperone interactions are highly conserved between yeast and mammalian cells. Here, we describe key mechanistic insights into the Hsp90 folding cycle that were obtained using the yeast system. We highlight the early contributions of the laboratory of Susan Lindquist and extend our analysis into the broader use of the yeast system to analyze the understanding of the conformational cycle of Hsp90 and the impact of altered Hsp90 function on the proteome.
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Affiliation(s)
- Erick I Rios
- Department of Biological Sciences and Center for Reproductive Biology, University of Idaho, Moscow, ID, United States
| | - Isabel L Hunsberger
- Department of Biological Sciences and Center for Reproductive Biology, University of Idaho, Moscow, ID, United States
| | - Jill L Johnson
- Department of Biological Sciences and Center for Reproductive Biology, University of Idaho, Moscow, ID, United States
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Ruger-Herreros C, Svoboda L, Mogk A, Bukau B. Role of J-domain Proteins in Yeast Physiology and Protein Quality Control. J Mol Biol 2024:168484. [PMID: 38331212 DOI: 10.1016/j.jmb.2024.168484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/10/2024]
Abstract
The Hsp70 chaperone system is a central component of cellular protein quality control (PQC) by acting in a multitude of protein folding processes ranging from the folding of newly synthesized proteins to the disassembly and refolding of protein aggregates. This multifunctionality of Hsp70 is governed by J-domain proteins (JDPs), which act as indispensable co-chaperones that target specific substrates to Hsp70. The number of distinct JDPs present in a species always outnumbers Hsp70, documenting JDP function in functional diversification of Hsp70. In this review, we describe the physiological roles of JDPs in the Saccharomyces cerevisiae PQC system, with a focus on the abundant JDP generalists, Zuo1, Ydj1 and Sis1, which function in fundamental cellular processes. Ribosome-bound Zuo1 cooperates with the Hsp70 chaperones Ssb1/2 in folding and assembly of nascent polypeptides. Ydj1 and Sis1 cooperate with the Hsp70 members Ssa1 to Ssa4 to exert overlapping functions in protein folding and targeting of newly synthesized proteins to organelles including mitochondria and facilitating the degradation of aberrant proteins by E3 ligases. Furthermore, they act in protein disaggregation reactions, though Ydj1 and Sis1 differ in their modes of Hsp70 cooperation and substrate specificities. This results in functional specialization as seen in prion propagation and the underlying dominant role of Sis1 in targeting Hsp70 for shearing of prion amyloid fibrils.
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Affiliation(s)
- Carmen Ruger-Herreros
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany; Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot, s/n, E-41013 Sevilla, Spain
| | - Lucia Svoboda
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany
| | - Axel Mogk
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany.
| | - Bernd Bukau
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany.
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40
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Ambrose AJ, Zerio CJ, Sivinski J, Zhu X, Godek J, Sanchez JL, Khanna M, Khanna R, Lairson L, Zhang DD, Chapman E. Human Hsp70 Substrate-Binding Domains Recognize Distinct Client Proteins. Biochemistry 2024; 63:251-263. [PMID: 38243804 DOI: 10.1021/acs.biochem.3c00531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
The 13 Hsp70 proteins in humans act on unique sets of substrates with diversity often being attributed to J-domain-containing protein (Hsp40 or JDP) cofactors. We were therefore surprised to find drastically different binding affinities for Hsp70-peptide substrates, leading us to probe substrate specificity among the 8 canonical Hsp70s from humans. We used peptide arrays to characterize Hsp70 binding and then mined these data using machine learning to develop an algorithm for isoform-specific prediction of Hsp70 binding sequences. The results of this algorithm revealed recognition patterns not predicted based on local sequence alignments. We then showed that none of the human isoforms can complement heat-shocked DnaK knockout Escherichia coli cells. However, chimeric Hsp70s consisting of the human nucleotide-binding domain and the substrate-binding domain of DnaK complement during heat shock, providing further evidence in vivo of the divergent function of the Hsp70 substrate-binding domains. We also demonstrated that the differences in heat shock complementation among the chimeras are not due to loss of DnaJ binding. Although we do not exclude JDPs as additional specificity factors, our data demonstrate substrate specificity among the Hsp70s, which has important implications for inhibitor development in cancer and neurodegeneration.
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Affiliation(s)
- Andrew J Ambrose
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Christopher J Zerio
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Jared Sivinski
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Xiaoyi Zhu
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Jack Godek
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Jonathan L Sanchez
- Department of Pharmacology, College of Medicine, The University of Arizona Health Sciences, Tucson, Arizona 85424, United States
| | - May Khanna
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, New York 10010, United States
| | - Rajesh Khanna
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, New York 10010, United States
| | - Luke Lairson
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Donna D Zhang
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
| | - Eli Chapman
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, United States
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41
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Mitchem MM, Shrader C, Abedi E, Truman AW. Novel insights into the post-translational modifications of Ydj1/DNAJA1 co-chaperones. Cell Stress Chaperones 2024; 29:1-9. [PMID: 38309209 PMCID: PMC10939075 DOI: 10.1016/j.cstres.2023.11.001] [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: 09/16/2023] [Revised: 10/18/2023] [Accepted: 11/04/2023] [Indexed: 02/05/2024] Open
Abstract
The activity of the Hsp70 molecular chaperone is regulated by a suite of helper co-chaperones that include J-proteins. Studies on J-proteins have historically focused on their expression, localization, and activation of Hsp70. There is growing evidence that the post-translational modifications (PTMs) of chaperones (the chaperone code) fine-tune chaperone function. This mini-review summarizes the current understanding of the role and regulation of PTMs on the major J-proteins Ydj1 and DNAJA1. Understanding these PTMs may provide novel therapeutic avenues for targeting chaperone activity in cancer and neurodegenerative diseases.
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Affiliation(s)
- Megan M Mitchem
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Courtney Shrader
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Elizabeth Abedi
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Andrew W Truman
- Department of Biological Sciences, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
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42
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Schroeder HT, De Lemos Muller CH, Heck TG, Krause M, Homem de Bittencourt PI. Heat shock response during the resolution of inflammation and its progressive suppression in chronic-degenerative inflammatory diseases. Cell Stress Chaperones 2024; 29:116-142. [PMID: 38244765 PMCID: PMC10939074 DOI: 10.1016/j.cstres.2024.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
The heat shock response (HSR) is a crucial biochemical pathway that orchestrates the resolution of inflammation, primarily under proteotoxic stress conditions. This process hinges on the upregulation of heat shock proteins (HSPs) and other chaperones, notably the 70 kDa family of heat shock proteins, under the command of the heat shock transcription factor-1. However, in the context of chronic degenerative disorders characterized by persistent low-grade inflammation (such as insulin resistance, obesity, type 2 diabetes, nonalcoholic fatty liver disease, and cardiovascular diseases) a gradual suppression of the HSR does occur. This work delves into the mechanisms behind this phenomenon. It explores how the Western diet and sedentary lifestyle, culminating in the endoplasmic reticulum stress within adipose tissue cells, trigger a cascade of events. This cascade includes the unfolded protein response and activation of the NOD-like receptor pyrin domain-containing protein-3 inflammasome, leading to the emergence of the senescence-associated secretory phenotype and the propagation of inflammation throughout the body. Notably, the activation of the NOD-like receptor pyrin domain-containing protein-3 inflammasome not only fuels inflammation but also sabotages the HSR by degrading human antigen R, a crucial mRNA-binding protein responsible for maintaining heat shock transcription factor-1 mRNA expression and stability on heat shock gene promoters. This paper underscores the imperative need to comprehend how chronic inflammation stifles the HSR and the clinical significance of evaluating the HSR using cost-effective and accessible tools. Such understanding is pivotal in the development of innovative strategies aimed at the prevention and treatment of these chronic inflammatory ailments, which continue to take a heavy toll on global health and well-being.
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Affiliation(s)
- Helena Trevisan Schroeder
- Laboratory of Cellular Physiology (FisCel), Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Carlos Henrique De Lemos Muller
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX), Department of Physiology, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Thiago Gomes Heck
- Post Graduate Program in Integral Health Care (PPGAIS-UNIJUÍ/UNICRUZ/URI), Regional University of Northwestern Rio Grande Do Sul State (UNIJUI) and Post Graduate Program in Mathematical and Computational Modeling (PPGMMC), UNIJUI, Ijuí, Rio Grande do Sul, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX), Department of Physiology, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Paulo Ivo Homem de Bittencourt
- Laboratory of Cellular Physiology (FisCel), Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
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Marszalek J, De Los Rios P, Cyr D, Mayer MP, Adupa V, Andréasson C, Blatch GL, Braun JEA, Brodsky JL, Bukau B, Chapple JP, Conz C, Dementin S, Genevaux P, Genest O, Goloubinoff P, Gestwicki J, Hammond CM, Hines JK, Ishikawa K, Joachimiak LA, Kirstein J, Liberek K, Mokranjac D, Nillegoda N, Ramos CHI, Rebeaud M, Ron D, Rospert S, Sahi C, Shalgi R, Tomiczek B, Ushioda R, Ustyantseva E, Ye Y, Zylicz M, Kampinga HH. J-domain proteins: From molecular mechanisms to diseases. Cell Stress Chaperones 2024; 29:21-33. [PMID: 38320449 PMCID: PMC10939069 DOI: 10.1016/j.cstres.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 02/08/2024] Open
Abstract
J-domain proteins (JDPs) are the largest family of chaperones in most organisms, but much of how they function within the network of other chaperones and protein quality control machineries is still an enigma. Here, we report on the latest findings related to JDP functions presented at a dedicated JDP workshop in Gdansk, Poland. The report does not include all (details) of what was shared and discussed at the meeting, because some of these original data have not yet been accepted for publication elsewhere or represented still preliminary observations at the time.
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Affiliation(s)
- Jaroslaw Marszalek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, Gdansk 80-307, Poland
| | - Paolo De Los Rios
- Institute of Physics, School of Basic Sciences, École Polytechnique Fédérale de Lausanne - EPFL, Lausanne CH 1015, Switzerland; Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne - EPFL, Lausanne CH 1015, Switzerland
| | - Douglas Cyr
- Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Matthias P Mayer
- Center for Molecular Biology of Heidelberg University (ZMBH), Heidelberg 69120, Germany
| | - Vasista Adupa
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
| | - Claes Andréasson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm S-10691, Sweden
| | - Gregory L Blatch
- Biomedical Research and Drug Discovery Research Group, Faculty of Health Sciences, Higher Colleges of Technology, Sharjah, United Arab Emirates; The Vice Chancellery, The University of Notre Dame Australia, Fremantle, Western Australia, Australia; Biomedical Biotechnology Research Unit, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, South Africa
| | - Janice E A Braun
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Bernd Bukau
- Center for Molecular Biology of Heidelberg University (ZMBH), Heidelberg 69120, Germany
| | - J Paul Chapple
- William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary University of London, London EC1M 6BQ, United Kingdom
| | - Charlotte Conz
- Institute of Biochemistry and Molecular Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sébastien Dementin
- Aix Marseille Univ, CNRS, BIP UMR 7281, IMM, 31 Chemin Joseph Aiguier, Marseille 13402, France
| | - Pierre Genevaux
- Laboratoire de Microbiologie et Génétique Moléculaires (LMGM), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UT3), Toulouse, France
| | - Olivier Genest
- Aix Marseille Univ, CNRS, BIP UMR 7281, IMM, 31 Chemin Joseph Aiguier, Marseille 13402, France
| | - Pierre Goloubinoff
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, Lausanne University, Lausanne 1015, Switzerland
| | - Jason Gestwicki
- Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Diseases, University of California San Francisco, San Francisco, CA 94308, USA
| | - Colin M Hammond
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Justin K Hines
- Department of Chemistry, Lafayette College, Easton, PA, USA
| | - Koji Ishikawa
- Center for Molecular Biology of Heidelberg University (ZMBH), Heidelberg 69120, Germany
| | - Lukasz A Joachimiak
- Center for Alzheimer's and Neurodegenerative Diseases, UT Southwestern Medical Center, Dallas, TX, USA; Peter O'Donnell Jr Brain Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Janine Kirstein
- Leibniz Institute on Aging - Fritz Lipmann Institute and Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, Jena 07745, Germany
| | - Krzysztof Liberek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, Gdansk 80-307, Poland
| | - Dejana Mokranjac
- LMU Munich, Biocenter-Cell Biology, Großhadernerstr. 2, Planegg-Martinsried 82152, Germany
| | - Nadinath Nillegoda
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia; Centre for Dementia and Brain Repair at the Australian Regenerative Medicine Institute, Monash University, Melbourne, Victoria, Australia
| | - Carlos H I Ramos
- Institute of Chemistry, University of Campinas-UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Mathieu Rebeaud
- Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne - EPFL, Lausanne CH 1015, Switzerland
| | - David Ron
- University of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Sabine Rospert
- Institute of Biochemistry and Molecular Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Chandan Sahi
- Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal, Bhopal, Madhya Pradesh, India; IISER Bhopal, Room Number 117, AB3, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Reut Shalgi
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | - Bartlomiej Tomiczek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, Gdansk 80-307, Poland
| | - Ryo Ushioda
- Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto 603-8555, Japan
| | - Elizaveta Ustyantseva
- Department of Biomedical Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Yihong Ye
- National Institute of Diabetes, Digestive, and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Maciej Zylicz
- Foundation for Polish Science, Warsaw 02-611, Poland
| | - Harm H Kampinga
- Department of Biomedical Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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44
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Sun C, Pan Q, Du M, Zheng J, Bai M, Sun W. Decoding the roles of heat shock proteins in liver cancer. Cytokine Growth Factor Rev 2024; 75:81-92. [PMID: 38182465 DOI: 10.1016/j.cytogfr.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/07/2024]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common gastrointestinal malignancies, characterized by insidious onset and high propensity for metastasis and recurrence. Apart from surgical resection, there are no effective curative methods for HCC in recent years, due to resistance to radiotherapy and chemotherapy. Heat shock proteins (HSP) play a crucial role in maintaining cellular homeostasis and normal organism development as molecular chaperones for intracellular proteins. Both basic research and clinical data have shown that HSPs are crucial participants in the HCC microenvironment, as well as the occurrence, development, metastasis, and resistance to radiotherapy and chemotherapy in various malignancies, particularly liver cancer. This review aims to discuss the molecular mechanisms and potential clinical value of HSPs in HCC, which may provide new insights for HSP-based therapeutic interventions for HCC.
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Affiliation(s)
- Chen Sun
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Qi Pan
- Department of Hepatobiliary Surgery and Organ Transplantation, First Hospital of China Medical University, Shenyang 110004, China
| | - Mingyang Du
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Jiahe Zheng
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Ming Bai
- Second Department of Medical Oncology, the First Hospital of China Medical University, Shenyang 110001, China.
| | - Wei Sun
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
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45
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Ren W, Ding B, Dong W, Yue Y, Long X, Zhou Z. Unveiling HSP40/60/70/90/100 gene families and abiotic stress response in Jerusalem artichoke. Gene 2024; 893:147912. [PMID: 37863300 DOI: 10.1016/j.gene.2023.147912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
Heat shock proteins (HSPs) are essential for plant growth, development, and stress adaptation. However, their roles in Jerusalem artichoke are largely unexplored. Using bioinformatics, we classified 143 HSP genes into distinct families: HSP40 (82 genes), HSP60 (22 genes), HSP70 (29 genes), HSP90 (6 genes), and HSP100 (4 genes). Our analysis covered their traits, evolution, and structures. Using RNA-seq data, we uncovered unique expression patterns of these HSP genes across growth stages and tissues. Notably, HSP40, HSP60, HSP70, HSP90, and HSP100 families each had specific roles. We also studied how these gene families responded to various stresses, from extreme temperatures to drought and salinity, revealing intricate expression dynamics. Remarkably, HSP40 showed remarkable flexibility, while HSP60, HSP70, HSP90, and HSP100 responded specifically to stress types. Moreover, our analysis unveiled significant correlations between gene pairs under stress, implying cooperative interactions. qRT-PCR validation underscored the significance of particular genes such as HtHSP60-7, HtHSP90-5, HtHSP100-2, and HtHSP100-3 in responding to stress. In summary, our study advances the understanding of how HSP gene families collectively manage stresses in Jerusalem artichoke. This provides insights into specific gene functions and broader plant stress responses.
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Affiliation(s)
- Wencai Ren
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Baishui Ding
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenhan Dong
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yang Yue
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaohua Long
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaosheng Zhou
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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46
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Moris VC, Bruneau L, Berthe J, Heuskin AC, Penninckx S, Ritter S, Weber U, Durante M, Danchin EGJ, Hespeels B, Doninck KV. Ionizing radiation responses appear incidental to desiccation responses in the bdelloid rotifer Adineta vaga. BMC Biol 2024; 22:11. [PMID: 38273318 PMCID: PMC10809525 DOI: 10.1186/s12915-023-01807-8] [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: 08/18/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND The remarkable resistance to ionizing radiation found in anhydrobiotic organisms, such as some bacteria, tardigrades, and bdelloid rotifers has been hypothesized to be incidental to their desiccation resistance. Both stresses produce reactive oxygen species and cause damage to DNA and other macromolecules. However, this hypothesis has only been investigated in a few species. RESULTS In this study, we analyzed the transcriptomic response of the bdelloid rotifer Adineta vaga to desiccation and to low- (X-rays) and high- (Fe) LET radiation to highlight the molecular and genetic mechanisms triggered by both stresses. We identified numerous genes encoding antioxidants, but also chaperones, that are constitutively highly expressed, which may contribute to the protection of proteins against oxidative stress during desiccation and ionizing radiation. We also detected a transcriptomic response common to desiccation and ionizing radiation with the over-expression of genes mainly involved in DNA repair and protein modifications but also genes with unknown functions that were bdelloid-specific. A distinct transcriptomic response specific to rehydration was also found, with the over-expression of genes mainly encoding Late Embryogenesis Abundant proteins, specific heat shock proteins, and glucose repressive proteins. CONCLUSIONS These results suggest that the extreme resistance of bdelloid rotifers to radiation might indeed be a consequence of their capacity to resist complete desiccation. This study paves the way to functional genetic experiments on A. vaga targeting promising candidate proteins playing central roles in radiation and desiccation resistance.
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Affiliation(s)
- Victoria C Moris
- Laboratory of Evolutionary Genetics and Ecology (LEGE), Department of Biology - URBE, University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium.
- Laboratory of Molecular Biology & Evolution (MBE), Department of Biology, Université Libre de Bruxelles, 1000, Brussels, Belgium.
| | - Lucie Bruneau
- Laboratory of Evolutionary Genetics and Ecology (LEGE), Department of Biology - URBE, University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium
| | - Jérémy Berthe
- Laboratory of Evolutionary Genetics and Ecology (LEGE), Department of Biology - URBE, University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium
| | - Anne-Catherine Heuskin
- Namur Research Institute for Life Sciences (NARILIS), Laboratory of Analysis By Nuclear Reactions (LARN), University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium
| | - Sébastien Penninckx
- Medical Physics Department, Institut Jules Bordet - Université Libre de Bruxelles, 90 Rue Meylemeersch, 1070, Brussels, Belgium
| | - Sylvia Ritter
- Biophysics Department, GSI Helmholtzzentrum Für Schwerionenforschung, Darmstadt, Germany
| | - Uli Weber
- Biophysics Department, GSI Helmholtzzentrum Für Schwerionenforschung, Darmstadt, Germany
| | - Marco Durante
- Biophysics Department, GSI Helmholtzzentrum Für Schwerionenforschung, Darmstadt, Germany
- Institute of Condensed Matter Physics, Technische Universität Darmstadt, Darmstadt, Germany
| | - Etienne G J Danchin
- Institut Sophia Agrobiotech, INRAE, Université Côte d'Azur, CNRS, 06903, Sophia Antipolis, France
| | - Boris Hespeels
- Laboratory of Evolutionary Genetics and Ecology (LEGE), Department of Biology - URBE, University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium
| | - Karine Van Doninck
- Laboratory of Evolutionary Genetics and Ecology (LEGE), Department of Biology - URBE, University of Namur, Rue de Bruxelles, 61, B-5000, Namur, Belgium
- Laboratory of Molecular Biology & Evolution (MBE), Department of Biology, Université Libre de Bruxelles, 1000, Brussels, Belgium
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47
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Ryder BD, Ustyantseva E, Boyer DR, Mendoza-Oliva A, Kuska M, Wydorski PM, Macierzynska P, Morgan N, Sawaya MR, Diamond MI, Kampinga HH, Joachimiak L. DNAJB8 oligomerization is mediated by an aromatic-rich motif that is dispensable for substrate activity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.03.06.531355. [PMID: 36945632 PMCID: PMC10028812 DOI: 10.1101/2023.03.06.531355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
J-domain protein (JDP) molecular chaperones have emerged as central players that maintain a healthy proteome. The diverse members of the JDP family function as monomers/dimers and a small subset assemble into micron-sized oligomers. The oligomeric JDP members have eluded structural characterization due to their low-complexity, intrinsically disordered middle domains. This in turn, obscures the biological significance of these larger oligomers in protein folding processes. Here, we identified a short, aromatic motif within DNAJB8, that drives self-assembly through pi-pi stacking and determined its X-ray structure. We show that mutations in the motif disrupt DNAJB8 oligomerization in vitro and in cells. DNAJB8 variants that are unable to assemble bind to misfolded tau seeds more specifically and retain capacity to reduce protein aggregation in vitro and in cells. We propose a new model for DNAJB8 function in which the sequences in the low-complexity domains play distinct roles in assembly and substrate activity.
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48
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Xiao X, Fay A, Molina PS, Kovach A, Glickman MS, Li H. Structure of the M. tuberculosis DnaK-GrpE complex reveals how key DnaK roles are controlled. Nat Commun 2024; 15:660. [PMID: 38253530 PMCID: PMC10803776 DOI: 10.1038/s41467-024-44933-9] [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: 03/01/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
The molecular chaperone DnaK is essential for viability of Mycobacterium tuberculosis (Mtb). DnaK hydrolyzes ATP to fold substrates, and the resulting ADP is exchanged for ATP by the nucleotide exchange factor GrpE. It has been unclear how GrpE couples DnaK's nucleotide exchange with substrate release. Here we report a cryo-EM analysis of GrpE bound to an intact Mtb DnaK, revealing an asymmetric 1:2 DnaK-GrpE complex. The GrpE dimer ratchets to modulate both DnaK nucleotide-binding domain and the substrate-binding domain. We further show that the disordered GrpE N-terminus is critical for substrate release, and that the DnaK-GrpE interface is essential for protein folding activity both in vitro and in vivo. Therefore, the Mtb GrpE dimer allosterically regulates DnaK to concomitantly release ADP in the nucleotide-binding domain and substrate peptide in the substrate-binding domain.
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Affiliation(s)
- Xiansha Xiao
- Department of Structural Biology, Van Andel Institute, Grand Rapids, MI, USA
| | - Allison Fay
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | | | - Amanda Kovach
- Department of Structural Biology, Van Andel Institute, Grand Rapids, MI, USA
| | | | - Huilin Li
- Department of Structural Biology, Van Andel Institute, Grand Rapids, MI, USA.
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49
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Zhang Z, Ju M, Tang Z, He Z, Hua S. DNAJC8: a prognostic marker and potential therapeutic target for hepatocellular carcinoma. Front Immunol 2024; 14:1289548. [PMID: 38274804 PMCID: PMC10808467 DOI: 10.3389/fimmu.2023.1289548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the most common type of liver cancer, accounting for ~90% of the total cases. DnaJ heat shock protein family member C8 (DNAJC8), belonging to the heat shock protein 40 (HSP40) family, is known to regulate cancer biology function. However, the role of DNAJC8 on HCC development remains unknown. Methods The Cancer Genome Atlas, GTEx, cBioPortal, and Human Protein Atlas were used to analyze the expression and clinical significance of DNAJC8 in HCC. Two HCC cell lines, MHCC-97H and Huh-7, were utilized to determine the biological function of DNAJC8. Results DNAJC8 expression was upregulated in HCC tissues and correlated with poor clinical prognosis. It was closely related to spliceosome, nucleocytoplasmic transport, and cell cycle and might be involved in the formation of tumor immunosuppressive microenvironment. Knockdown of DNAJC8 severely inhibited HCC cell proliferation and induced apoptosis. Conclusion Our study demonstrate that DNAJC8 functions as an oncogene in HCC and hence may be used as a potential therapeutic target and prognostic marker for HCC.
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Affiliation(s)
| | | | | | | | - Shengni Hua
- Department of Radiation Oncology, Zhuhai People’s Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
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50
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Abou-Shaara HF. The response of heat shock proteins in honey bees to abiotic and biotic stressors. J Therm Biol 2024; 119:103784. [PMID: 38232472 DOI: 10.1016/j.jtherbio.2024.103784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/19/2024]
Abstract
Honey bees, Apis mellifera, are the most important managed pollinators worldwide. They are highly impacted by various abiotic and biotic stressors, especially temperature extremes, which can lead to cellular damage and death. The induction of heat shock proteins (HSPs) has been recorded in honey bees as a response to various types of stressors. HSPs are classified into different gene families according to their molecular weights. HSPs play an important role in maintaining cellular protein homeostasis due to their contribution as molecular chaperones or co-chaperones. HSPs in honey bees have complex functions with induction even under normal colony conditions. Previous studies have suggested various functions of HSPs to protect cells from damage under exposure to environmental stressors, pollutants, and pathogens. Surprisingly, HSPs have also been found to play roles in larval development and age-related tasks. The expression of HSPs varies depending on tissue type, developmental stage, age, and stress period. This article reviews studies on HSPs (sHSPs, HSP40, HSP60, HSP70, and HSP90) in honey bees and highlights gaps in the available knowledge. This review is crucial for honey bee research, particularly in the face of climate change challenges.
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Affiliation(s)
- Hossam F Abou-Shaara
- Department of Plant Protection, Faculty of Agriculture, Damanhour University, Damanhour, 22516, Egypt.
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