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Huang Y, Liu C, Huo X, Lai X, Zhu W, Hao Y, Zheng Z, Guo K. Enhanced resistance to heat and fungal infection in transgenic Trichoderma via over-expressing the HSP70 gene. AMB Express 2024; 14:34. [PMID: 38600342 PMCID: PMC11006649 DOI: 10.1186/s13568-024-01693-5] [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: 03/09/2024] [Accepted: 03/17/2024] [Indexed: 04/12/2024] Open
Abstract
Heat stress is one of the major abiotic stresses affecting the growth, sporulation, colonization and survival of Trichoderma viride. This study aimed to gain a better insight into the underlying mechanism governing the heat stress response of T. viride Tv-1511. We analysed the transcriptomic changes of Tv-1511 under normal and heat stress conditions using RNA sequencing. We observed that Tv-1511 regulates the biosynthesis of secondary metabolites through a complex network of signalling pathways. Additionally, it significantly activates the anti-oxidant defence system, heat shock proteins and stress-response-related transcription factors in response to heat stress. TvHSP70 was identified as a key gene, and transgenic Tv-1511 overexpressing TvHSP70 (TvHSP70-OE) was generated. We conducted an integrated morphological, physiological and molecular analyses of the TvHSP70-OE and wild-type strains. We observed that TvHSP70 over-expression significantly triggered the growth, anti-oxidant capacity, anti-fungal activity and growth-promoting ability of Tv-1511. Regarding anti-oxidant capacity, TvHSP70 primarily up-regulated genes involved in enzymatic and non-enzymatic anti-oxidant systems. In terms of anti-fungal activity, TvHSP70 primarily activated genes involved in the synthesis of enediyne, anti-fungal and aminoglycoside antibiotics. This study provides a comparative analysis of the functional significance and molecular mechanisms of HSP70 in Trichoderma. These findings provide a valuable foundation for further analyses.
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Affiliation(s)
- Yanhua Huang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Changfa Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Xuexue Huo
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Xianzhi Lai
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Wentao Zhu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Yongren Hao
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Zehui Zheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
| | - Kai Guo
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
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Habeler M, Lindner HH, Redl B. A role of heparan sulphate proteoglycan in the cellular uptake of lipocalins ß-lactoglobulin and allergen Fel d 4. Biol Chem 2020; 401:1081-1092. [PMID: 32229688 DOI: 10.1515/hsz-2020-0132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 03/16/2020] [Indexed: 01/22/2023]
Abstract
Lipocalins, small extracellular hydrophobic molecule carriers, can be internalized by a variety of different cells. However, to date receptors have only been identified for human lipocalins. Here, we specifically investigated uptake mechanisms for lipocalins ß-lactoglobulin and Fel d 4 in HeLa and Chinese hamster ovary (CHO) cells. We provide evidence that cell surface heparan sulphate proteoglycan is essential for internalization of these lipocalins. In HeLa cells, lipocalin uptake was inhibited by competition with soluble heparin, enzymatic digestion of cellular heparan sulphate by heparinase and inhibition of its biosynthesis by sodium chlorate. Biochemical studies by heparin affinity chromatography and colocalization studies further supported a role of heparan sulphate proteoglycan in lipocalin uptake. Finally, lipocalin uptake was blocked in CHO mutant cells defective in glycosaminoglycan biosynthesis whereas in wild-type cells it was clearly detectable. Thus, cell surface heparan sulphate proteoglycan represents a novel component absolutely participating in the cellular uptake of some lipocalins.
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Affiliation(s)
- Matthias Habeler
- Institute of Molecular Biology, Medical University Innsbruck, Innrain 80, A-6020, Innsbruck, Austria
| | - Herbert H Lindner
- Institute of Clinical Biochemistry, Medical University Innsbruck, Innrain 80, A-6020, Innsbruck, Austria
| | - Bernhard Redl
- Institute of Molecular Biology, Medical University Innsbruck, Innrain 80, A-6020, Innsbruck, Austria
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Chen G, Chen P, You T, Jiang X, Li W, Jiang C. Allogenic Tendon-Autologous Cartilage Cells Transplantation Enhances Adhesive/Growth Ability and Promotes Chondrogenesis in a Rabbit Model of Glenoid Labrum Damage. Ann Transplant 2019; 24:532-540. [PMID: 31527567 PMCID: PMC6765340 DOI: 10.12659/aot.917518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Glenoid labrum injury of the shoulder commonly occurs in athletes, especially those who perform throwing motions. This study investigated the effects of the established allogenic tendon-autologous cartilage cells reconstruction approach in a rabbit model of glenoid labrum damage. Material/Methods The allogenic tendons were isolated and extracted using the chemical extraction method. Cartilage cells were isolated from New Zealand rabbits and identified by detecting type II collagenase. The allogenic tendon-autologous cartilage cells were transplanted to the damaged glenoid labrum. HE staining was used to observe inflammatory cells, Masson staining was used to observe muscle fibers, and scanning electron microscopy (SEM) was used to assess antigenicity of tendon tissues. PSA and AB staining were used to examine neutral protein mucopolysaccharide and acidic protein mucopolysaccharide, respectively. We assessed cartilage cell growth in autologous cartilage cells combined with allogenic tendon transplanted tissues. Results Allogenic tendons were well prepared using chemical extraction method due to use of HE staining, Masson staining, and SEM. TGF-β1 treatment induced cartilage cell formation and triggered expression of acidic and neutral protein mucopolysaccharides. HE staining, Masson staining, PAS staining, and AB staining methods showed that autologous cartilage cells combined with allogenic tendon transplanted tissues had better growth of cartilage cells. Conclusions This study establishes the allogenic tendon-autologous cartilage cells reconstruction and transplantation approach and illustrated higher adhesive ability and growth ability, and better chondrogenesis in a rabbit model of glenoid labrum damage.
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Affiliation(s)
- Guofei Chen
- Department of Traumatic Arthrosis Orthopaedics, University of Chinese Academy of Sciences-Shenzhen Hospital Shenzhen, Shenzhen, Guangdong, China (mainland)
| | - Peng Chen
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China (mainland)
| | - Tian You
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China (mainland)
| | - Xiaocheng Jiang
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China (mainland)
| | - Wei Li
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China (mainland)
| | - Changqing Jiang
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China (mainland)
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Low CF, Syarul Nataqain B, Chee HY, Rozaini MZH, Najiah M. Betanodavirus: Dissection of the viral life cycle. JOURNAL OF FISH DISEASES 2017; 40:1489-1496. [PMID: 28449248 DOI: 10.1111/jfd.12638] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 05/27/2023]
Abstract
Progressive research has been recently made in dissecting the molecular biology of Betanodavirus life cycle, the causative pathogen of viral encephalopathy and retinopathy in economic important marine fish species. Establishment of betanodavirus infectious clone allows the manipulation of virus genome for functional genomic study, which elucidates the biological event of the viral life cycle at molecular level. The betanodavirus strategizes its replication by expressing anti-apoptosis/antinecrotic proteins to maintain the cell viability during early infection. Subsequently utilizes and controls the biological machinery of the infected cells for viral genome replication. Towards the late phase of infection, mass production of capsid protein for virion assembly induces the activation of host apoptosis pathway. It eventually leads to the cell lysis and death, which the lysis of cell contributes to the accomplishment of viral shedding that completes a viral life cycle. The recent efforts to dissect the entire betanodavirus life cycle are currently reviewed.
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Affiliation(s)
- C-F Low
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - B Syarul Nataqain
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - H-Y Chee
- Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - M Z H Rozaini
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - M Najiah
- School of Fisheries and Aquaculture Sciences, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
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Chen H, Gao Z, He C, Xiang R, van Kuppevelt TH, Belting M, Zhang S. GRP75 upregulates clathrin-independent endocytosis through actin cytoskeleton reorganization mediated by the concurrent activation of Cdc42 and RhoA. Exp Cell Res 2016; 343:223-236. [DOI: 10.1016/j.yexcr.2016.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 04/05/2016] [Accepted: 04/12/2016] [Indexed: 11/15/2022]
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McCallister C, Kdeiss B, Nikolaidis N. Biochemical characterization of the interaction between HspA1A and phospholipids. Cell Stress Chaperones 2016; 21:41-53. [PMID: 26342809 PMCID: PMC4679732 DOI: 10.1007/s12192-015-0636-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 08/25/2015] [Accepted: 08/31/2015] [Indexed: 01/15/2023] Open
Abstract
Seventy-kilodalton heat shock proteins (Hsp70s) are molecular chaperones essential for maintaining cellular homeostasis. Apart from their indispensable roles in protein homeostasis, specific Hsp70s localize at the plasma membrane and bind to specific lipids. The interaction of Hsp70s with lipids has direct physiological outcomes including lysosomal rescue, microautophagy, and promotion of cell apoptosis. Despite these essential functions, the Hsp70-lipid interactions remain largely uncharacterized. In this study, we characterized the interaction of HspA1A, an inducible Hsp70, with five phospholipids. We first used high concentrations of potassium and established that HspA1A embeds in membranes when bound to all anionic lipids tested. Furthermore, we found that protein insertion is enhanced by increasing the saturation level of the lipids. Next, we determined that the nucleotide-binding domain (NBD) of the protein binds to lipids quantitatively more than the substrate-binding domain (SBD). However, for all lipids tested, the full-length protein is necessary for embedding. We also used calcium and reaction buffers equilibrated at different pH values and determined that electrostatic interactions alone may not fully explain the association of HspA1A with lipids. We then determined that lipid binding is inhibited by nucleotide-binding, but it is unaffected by protein-substrate binding. These results suggest that the HspA1A lipid-association is specific, depends on the physicochemical properties of the lipid, and is mediated by multiple molecular forces. These mechanistic details of the Hsp70-lipid interactions establish a framework of possible physiological functions as they relate to chaperone regulation and localization.
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Affiliation(s)
- Chelsea McCallister
- Department of Biological Science, Center for Applied Biotechnology Studies, and Center for Computational and Applied Mathematics, California State University, Fullerton, Fullerton, CA, 92834, USA
| | - Brianna Kdeiss
- Department of Biological Science, Center for Applied Biotechnology Studies, and Center for Computational and Applied Mathematics, California State University, Fullerton, Fullerton, CA, 92834, USA
| | - Nikolas Nikolaidis
- Department of Biological Science, Center for Applied Biotechnology Studies, and Center for Computational and Applied Mathematics, California State University, Fullerton, Fullerton, CA, 92834, USA.
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HspA1A, a 70-kDa heat shock protein, differentially interacts with anionic lipids. Biochem Biophys Res Commun 2015; 467:835-40. [PMID: 26476215 DOI: 10.1016/j.bbrc.2015.10.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/10/2015] [Indexed: 12/22/2022]
Abstract
HspA1A, a 70-kDa heat shock protein, binds to specific lipids. This interaction allows HspA1A to associate with the plasma and other cellular membranes, where it regulates many vital functions like immunity, membrane stabilization, autophagy, and apoptosis. However, the molecular mechanism of the HspA1A-lipid interactions has yet to be fully characterized. Therefore, in this study, we characterized the interaction of HspA1A with three lipids, bis-(monoacylglycero)-phosphate, cardiolipin, and sulfatide. Our results revealed that, first, HspA1A embeds in membranes when bound to liposomes composed of cardiolipin and sulfatide. Second, the binding of HspA1A to lipids is complex and although important, electrostatic interactions alone cannot fully explain the observed binding. Third, the two HspA1A domains, the nucleotide-binding domain and the substrate-binding domain, differentially bind to lipids in a lipid-specific manner. Fourth, HspA1A lipid-binding is reduced by the presence of nucleotides, but it is unaffected by the presence of a peptide-substrate. These observations suggest that HspA1A binds to lipids via a multi-step mechanism and this interaction depends on the specific physicochemical properties of the lipid. We speculate that the association of HspA1A with lipids like the mitochondrial cardiolipin, which is an organelle marker, may facilitate the translocation and localized function of the molecular chaperone to particular sub-cellular compartments.
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Sulfatide-Hsp70 interaction promotes Hsp70 clustering and stabilizes binding to unfolded protein. Biomolecules 2015; 5:958-73. [PMID: 25989600 PMCID: PMC4496704 DOI: 10.3390/biom5020958] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/24/2015] [Accepted: 05/07/2015] [Indexed: 01/01/2023] Open
Abstract
The 70-kDa heat shock protein (Hsp70), one of the major stress-inducible molecular chaperones, is localized not only in the cytosol, but also in extracellular milieu in mammals. Hsp70 interacts with various cell surface glycolipids including sulfatide (3'-sulfogalactosphingolipid). However, the molecular mechanism, as well as the biological relevance, underlying the glycolipid-Hsp70 interaction is unknown. Here we report that sulfatide promotes Hsp70 oligomerization through the N-terminal ATPase domain, which stabilizes the binding of Hsp70 to unfolded protein in vitro. We find that the Hsp70 oligomer has apparent molecular masses ranging from 440 kDa to greater than 669 kDa. The C-terminal peptide-binding domain is dispensable for the sulfatide-induced oligomer formation. The oligomer formation is impaired in the presence of ATP, while the Hsp70 oligomer, once formed, is unable to bind to ATP. These results suggest that sulfatide locks Hsp70 in a high-affinity state to unfolded proteins by clustering the peptide-binding domain and blocking the binding to ATP that induces the dissociation of Hsp70 from protein substrates.
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