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Patidar K, Deng JH, Mitchell CS, Ford Versypt AN. Cross-Domain Text Mining of Pathophysiological Processes Associated with Diabetic Kidney Disease. Int J Mol Sci 2024; 25:4503. [PMID: 38674089 PMCID: PMC11050166 DOI: 10.3390/ijms25084503] [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: 03/13/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease worldwide. This study's goal was to identify the signaling drivers and pathways that modulate glomerular endothelial dysfunction in DKD via artificial intelligence-enabled literature-based discovery. Cross-domain text mining of 33+ million PubMed articles was performed with SemNet 2.0 to identify and rank multi-scalar and multi-factorial pathophysiological concepts related to DKD. A set of identified relevant genes and proteins that regulate different pathological events associated with DKD were analyzed and ranked using normalized mean HeteSim scores. High-ranking genes and proteins intersected three domains-DKD, the immune response, and glomerular endothelial cells. The top 10% of ranked concepts were mapped to the following biological functions: angiogenesis, apoptotic processes, cell adhesion, chemotaxis, growth factor signaling, vascular permeability, the nitric oxide response, oxidative stress, the cytokine response, macrophage signaling, NFκB factor activity, the TLR pathway, glucose metabolism, the inflammatory response, the ERK/MAPK signaling response, the JAK/STAT pathway, the T-cell-mediated response, the WNT/β-catenin pathway, the renin-angiotensin system, and NADPH oxidase activity. High-ranking genes and proteins were used to generate a protein-protein interaction network. The study results prioritized interactions or molecules involved in dysregulated signaling in DKD, which can be further assessed through biochemical network models or experiments.
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Affiliation(s)
- Krutika Patidar
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Jennifer H. Deng
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Cassie S. Mitchell
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
- Center for Machine Learning at Georgia Tech, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Ashlee N. Ford Versypt
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
- Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA
- Institute for Artificial Intelligence and Data Science, University at Buffalo, Buffalo, NY 14260, USA
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de Andrade VM, de Oliveira VDM, Barcick U, Ramu VG, Heras M, Bardají ER, Castanho MARB, Zelanis A, Capella A, Junqueira JC, Conceição K. Mechanistic insights on the antibacterial action of the kyotorphin peptide derivatives revealed by in vitro studies and Galleria mellonella proteomic analysis. Microb Pathog 2024; 189:106607. [PMID: 38437995 DOI: 10.1016/j.micpath.2024.106607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVES The selected kyotorphin derivatives were tested to improve their antimicrobial and antibiofilm activity. The antimicrobial screening of the KTP derivatives were ascertained in the representative strains of bacteria, including Streptococcus pneumoniae, Streptococcus pyogenes, Escherichia coli and Pseudomonas aeruginosa. METHODS Kyotorphin derivatives, KTP-NH2, KTP-NH2-DL, IbKTP, IbKTP-NH2, MetKTP-DL, MetKTP-LD, were designed and synthesized to improve lipophilicity and resistance to enzymatic degradation. Peptides were synthesized by standard solution or solid-phase peptide synthesis and purified using RP-HPLC, which resulted in >95 % purity, and were fully characterized by mass spectrometry and 1H NMR. The minimum inhibitory concentrations (MIC) determined for bacterial strains were between 20 and 419 μM. The direct effect of IbKTP-NH2 on bacterial cells was imaged using scanning electron microscopy. The absence of toxicity, high survival after infection and an increase in the hemocytes count was evaluated by injections of derivatives in Galleria mellonella larvae. Proteomics analyses of G. mellonella hemolymph were performed to investigate the underlying mechanism of antibacterial activity of IbKTP-NH2 at MIC. RESULTS IbKTP-NH2 induces morphological changes in bacterial cell, many differentially expressed proteins involved in DNA replication, synthesis of cell wall, and virulence were up-regulated after the treatment of G. mellonella with IbKTP-NH2. CONCLUSION We suggest that this derivative, in addition to its physical activity on the bacterial membranes, can elicit a cellular and humoral immune response, therefore, it could be considered for biomedical applications.
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Affiliation(s)
- Vitor M de Andrade
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Vitor D M de Oliveira
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Uilla Barcick
- Laboratório de Proteômica Funcional, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Vasanthakumar G Ramu
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain; Peptides and Complex Generics, #2700, Neovantage, Genome Valley, Shameerpet, Hyderabad, 500078, Telengana, India
| | - Montserrat Heras
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain
| | - Eduard R Bardají
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain
| | - Miguel A R B Castanho
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Professor Egas Moniz, 1649-028, Lisboa, Portugal
| | - André Zelanis
- Laboratório de Proteômica Funcional, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Aline Capella
- Laboratório ProLaser, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Juliana C Junqueira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, 12245-000, SP, Brazil
| | - Katia Conceição
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil.
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Song H, Tian X, He L, Liu D, Li J, Mei Z, Zhou T, Liu C, He J, Jia X, Yang Z, Yan C, Han Y. CREG1 deficiency impaired myoblast differentiation and skeletal muscle regeneration. J Cachexia Sarcopenia Muscle 2024; 15:587-602. [PMID: 38272853 PMCID: PMC10995283 DOI: 10.1002/jcsm.13427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/20/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND CREG1 (cellular repressor of E1A-stimulated genes 1) is a protein involved in cellular differentiation and homeostasis regulation. However, its role in skeletal muscle satellite cells differentiation and muscle regeneration is poorly understood. This study aimed to investigate the role of CREG1 in myogenesis and muscle regeneration. METHODS RNA sequencing data (GSE8479) was analysed from the Gene Expression Omnibus database (GEO, https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi). We generated Creg1 knockdown and skeletal muscle satellite cells specific Creg1 overexpression mice mediated by adeno-associated virus serotype 9 (AAV9), skeletal muscle mature myofibre Creg1 knockout mice (myoblast/Creg1MKO), and control mice Creg1flox/flox (Creg1fl/fl) as in vivo models. The mice were injected into tibialis anterior (TA) muscle with 100 μL of 10 μM cardiotoxin to establish a muscle regeneration model. Creg1fl/fl and Creg1MKO mice were treated with AAV-sh-C-Cbl (2 × 1010 genomic copies/mouse) to silence C-Cbl in the TA muscle. 293T and C2C12 cells were transfected with plasmids using lipofectamine RNAi MAX in vitro. Mass spectrometry analyses and RNA sequencing transcriptomic assay were performed. RESULTS We analysed the transcriptional profiles of the skeletal muscle biopsies from healthy older (N = 25) and younger (N = 26) adult men and women in GSE8479 database, and the results showed that Creg1 was associated with human sarcopenia. We found that Creg1 knockdown mice regenerated less newly formed fibres in response to cardiotoxin injection (~30% reduction, P < 0.01); however, muscle satellite cells specific Creg1 overexpression mice regenerated more newly formed fibres (~20% increase, P < 0.05). AMPKa1 is known as a key mediator in the muscle regeneration process. Our results revealed that CREG1 deficiency inhibited AMPKa1 signalling through C-CBL E3-ubiquitin ligase-mediated AMPKa1 degradation (P < 0.01). C-CBL-mediated AMPKa1 ubiquitination was attributed to the K48-linked polyubiquitination of AMPKa1 at K396 and that the modification played an important role in the regulation of AMPKa1 protein stability. We also found that Creg1MKO mice regenerated less newly formed fibres compared with Creg1fl/fl mice (~30% reduction, P < 0.01). RNA-seq analysis showed that CREG1 deletion in impaired muscles led to the upregulation of inflammation and DKK3 expression. The TA muscles of Creg1MKO mice were injected with AAV-vector or AAV-shC-Cbl, silencing C-CBL (P < 0.01) in the skeletal muscles of Creg1MKO mice significantly improved muscle regeneration induced by CTX injury (P < 0.01). CONCLUSIONS Our findings suggest that CREG1 may be a potential therapeutic target for skeletal muscle regeneration.
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Affiliation(s)
- Haixu Song
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Xiaoxiang Tian
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Lianqi He
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Dan Liu
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Jiayin Li
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Zhu Mei
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Ting Zhou
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Chunying Liu
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Jiaqi He
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Xiaodong Jia
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Zheming Yang
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Chenghui Yan
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
| | - Yaling Han
- Department of Cardiology, Cardiovascular Research Institute, State Key Laboratory of Frigid Zone Cardiovascular DiseaseGeneral Hospital of Northern Theater CommandShenyangChina
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Mikitiuk M, Barczyński J, Bielski P, Arciniega M, Tyrcha U, Hec A, Lipińska AD, Rychłowski M, Holak TA, Sitar T. IGF2 Peptide-Based LYTACs for Targeted Degradation of Extracellular and Transmembrane Proteins. Molecules 2023; 28:7519. [PMID: 38005242 PMCID: PMC10673611 DOI: 10.3390/molecules28227519] [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: 10/24/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Lysosome-targeting chimeras (LYTACs) have recently been developed to facilitate the lysosomal degradation of specific extracellular and transmembrane molecular targets. However, the LYTAC particles described to date are based on glycopeptide conjugates, which are difficult to prepare and produce on a large scale. Here, we report on the development of pure protein LYTACs based on the non-glycosylated IGF2 peptides, which can be readily produced in virtually any facility capable of monoclonal antibody production. These chimeras utilize the IGF2R/CI-M6PR pathway for lysosomal shuttling and, in our illustrative example, target programmed death ligand 1 (PD-L1), eliciting physiological effects analogous to immune checkpoint blockade. Results from in vitro assays significantly exceed the effects of anti-PD-L1 antibodies alone.
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Affiliation(s)
- Michał Mikitiuk
- Recepton Sp. z o.o., Trzy Lipy 3, 80-172 Gdańsk, Poland
- Department of Photobiology and Molecular Diagnostics, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdansk, Abrahama 58, 80-307 Gdańsk, Poland
| | - Jan Barczyński
- Recepton Sp. z o.o., Trzy Lipy 3, 80-172 Gdańsk, Poland
- Department of Photobiology and Molecular Diagnostics, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdansk, Abrahama 58, 80-307 Gdańsk, Poland
| | | | | | | | | | - Andrea D. Lipińska
- Laboratory of Virus Molecular Biology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, 80-307 Gdańsk, Poland
| | - Michał Rychłowski
- Laboratory of Virus Molecular Biology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, 80-307 Gdańsk, Poland
| | - Tad A. Holak
- Department of Organic Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland;
| | - Tomasz Sitar
- Recepton Sp. z o.o., Trzy Lipy 3, 80-172 Gdańsk, Poland
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Liu D, Xing R, Zhang Q, Tian X, Qi Y, Song H, Liu Y, Yu H, Zhang X, Jing Q, Yan C, Han Y. The CREG1-FBXO27-LAMP2 axis alleviates diabetic cardiomyopathy by promoting autophagy in cardiomyocytes. Exp Mol Med 2023; 55:2025-2038. [PMID: 37658156 PMCID: PMC10545673 DOI: 10.1038/s12276-023-01081-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 05/26/2023] [Accepted: 06/27/2023] [Indexed: 09/03/2023] Open
Abstract
Autophagy plays an important role in the development of diabetic cardiomyopathy. Cellular repressor of E1A-stimulated genes 1 (CREG1) is an important myocardial protective factor. The aim of this study was to investigate the effects and mechanisms of CREG1 in diabetic cardiomyopathy. Male C57BL/6 J mice, Creg1 transgenic mice and cardiac-specific knockout mice were used to establish a type 2 diabetes model. Small animal ultrasound, Masson's staining and western blotting were used to evaluate cardiac function, myocardial fibrosis and autophagy. Neonatal mouse cardiomyocytes (NMCMs) were stimulated with palmitate, and the effects of CREG1 on NMCMs autophagy were examined. CREG1 deficiency exacerbated cardiac dysfunction, cardiac hypertrophy and fibrosis in mice with diabetic cardiomyopathy, which was accompanied by exacerbated autophagy dysfunction. CREG1 overexpression improved cardiac function and ameliorated cardiac hypertrophy and fibrosis in diabetic cardiomyopathy by improving autophagy. CREG1 protein expression was decreased in palmitate-induced NMCMs. CREG1 knockdown exacerbated cardiomyocyte hypertrophy and inhibited autophagy. CREG1 overexpression inhibited cardiomyocyte hypertrophy and improved autophagy. LAMP2 overexpression reversed the effect of CREG1 knockdown on palmitate-induced inhibition of cardiomyocyte autophagy. CREG1 inhibited LAMP2 protein degradation by inhibiting the protein expression of F-box protein 27 (FBXO27). Our findings indicate new roles of CREG1 in the development of diabetic cardiomyopathy.
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Affiliation(s)
- Dan Liu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Ruinan Xing
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Quanyu Zhang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoxiang Tian
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yanping Qi
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Haixu Song
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yanxia Liu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Haibo Yu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaolin Zhang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Quanmin Jing
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Chenghui Yan
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China.
| | - Yaling Han
- State Key Laboratory of Frigid Zone Cardiovascular Diseases, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China.
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Song H, Li J, Peng C, Liu D, Mei Z, Yang Z, Tian X, Zhang X, Jing Q, Yan C, Han Y. The role of CREG1 in megakaryocyte maturation and thrombocytopoiesis. Int J Biol Sci 2023; 19:3614-3627. [PMID: 37496998 PMCID: PMC10367557 DOI: 10.7150/ijbs.78660] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 06/20/2023] [Indexed: 07/28/2023] Open
Abstract
Abnormal megakaryocyte maturation and platelet production lead to platelet-related diseases and impact the dynamic balance between hemostasis and bleeding. Cellular repressor of E1A-stimulated gene 1 (CREG1) is a glycoprotein that promotes tissue differentiation. However, its role in megakaryocytes remains unclear. In this study, we found that CREG1 protein is expressed in platelets and megakaryocytes and was decreased in the platelets of patients with thrombocytopenia. A cytosine arabinoside-induced thrombocytopenia mouse model was established, and the mRNA and protein expression levels of CREG1 were found to be reduced in megakaryocytes. We established megakaryocyte/platelet conditional knockout (Creg1pf4-cre) and transgenic mice (tg-Creg1). Compared to Creg1fl/fl mice, Creg1pf4-cre mice exhibited thrombocytopenia, which was mainly caused by inefficient bone marrow (BM) thrombocytopoiesis, but not by apoptosis of circulating platelets. Cultured Creg1pf4-cre-megakaryocytes exhibited impairment of the actin cytoskeleton, with less filamentous actin, significantly fewer proplatelets, and lower ploidy. CREG1 directly interacts with MEK1/2 and promotes MEK1/2 phosphorylation. Thus, our study uncovered the role of CREG1 in the regulation of megakaryocyte maturation and thrombopoiesis, and it provides a possible theoretical basis for the prevention and treatment of thrombocytopenia.
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Affiliation(s)
- HaiXu Song
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Jiayin Li
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
- Northeastern University, Shenyang, China
| | - Chengfei Peng
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Dan Liu
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Zhu Mei
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Zheming Yang
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
- Northeastern University, Shenyang, China
| | - Xiaoxiang Tian
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaolin Zhang
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Quanmin Jing
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Chenghui Yan
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yaling Han
- National Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
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Huang Z, Yang P, Wang F. Shrimp Plasma CREG Is a Hemocyte Activation Factor. Front Immunol 2021; 12:707770. [PMID: 34484206 PMCID: PMC8415475 DOI: 10.3389/fimmu.2021.707770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/27/2021] [Indexed: 11/13/2022] Open
Abstract
Cytokines are a class of immunoregulatory proteins that are secreted by cells. Although vertebrate cytokine, especially mammalian cytokine has been well studied for the past decades. Much less attention has been paid to invertebrate so that only some cytokines have been identified in invertebrates. We have chosen Peaneus vannamei as a model to explore novel invertebrate cytokines. To achieve this, we previously purified shrimp plasma low abundance proteins and identified more than 400 proteins with proteomics analyses. In this study, a cellular repressor of E1A-stimulated gene (CREG)-like protein, which is highly conserved from Drosophila melanogaster to Homo sapiens, was further characterized in shrimp plasma. We found that shrimp plasma CREG was a glycoprotein which was strongly induced in hemolymph at 8 h post-LPS injection. Further function experiment unveiled that recombinant shrimp CREG protein injection significantly increased phagocytic hemocyte and lysosome-high hemocyte proportion in hemolymph. After that, hemocytes from rEGFP- and rCREG-protein injected shrimps were subjected to transcriptome analyses, which revealed that shrimp CREG protein could comprehensively promote hemocyte maturation and activation. Taken together, our data clearly indicated that shrimp plasma CREG protein is a novel hemocyte activation factor, which is probably a conserved myeloid cell lineage activation factor from invertebrate to vertebrate.
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Affiliation(s)
- Zhiqi Huang
- Department of Biology, College of Science, Shantou University, Shantou, China
| | - Peng Yang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Fan Wang
- Department of Biology, College of Science, Shantou University, Shantou, China.,Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, China
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Eggers R, Jammer A, Jha S, Kerschbaumer B, Lahham M, Strandback E, Toplak M, Wallner S, Winkler A, Macheroux P. The scope of flavin-dependent reactions and processes in the model plant Arabidopsis thaliana. PHYTOCHEMISTRY 2021; 189:112822. [PMID: 34118767 DOI: 10.1016/j.phytochem.2021.112822] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) are utilized as coenzymes in many biochemical reduction-oxidation reactions owing to the ability of the tricyclic isoalloxazine ring system to employ the oxidized, radical and reduced state. We have analyzed the genome of Arabidopsis thaliana to establish an inventory of genes encoding flavin-dependent enzymes (flavoenzymes) as a basis to explore the range of flavin-dependent biochemical reactions that occur in this model plant. Expectedly, flavoenzymes catalyze many pivotal reactions in primary catabolism, which are connected to the degradation of basic metabolites, such as fatty and amino acids as well as carbohydrates and purines. On the other hand, flavoenzymes play diverse roles in anabolic reactions most notably the biosynthesis of amino acids as well as the biosynthesis of pyrimidines and sterols. Importantly, the role of flavoenzymes goes much beyond these basic reactions and extends into pathways that are equally crucial for plant life, for example the production of natural products. In this context, we outline the participation of flavoenzymes in the biosynthesis and maintenance of cofactors, coenzymes and accessory plant pigments (e. g. carotenoids) as well as phytohormones. Moreover, several multigene families have emerged as important components of plant immunity, for example the family of berberine bridge enzyme-like enzymes, flavin-dependent monooxygenases and NADPH oxidases. Furthermore, the versatility of flavoenzymes is highlighted by their role in reactions leading to tRNA-modifications, chromatin regulation and cellular redox homeostasis. The favorable photochemical properties of the flavin chromophore are exploited by photoreceptors to govern crucial processes of plant adaptation and development. Finally, a sequence- and structure-based approach was undertaken to gain insight into the catalytic role of uncharacterized flavoenzymes indicating their involvement in unknown biochemical reactions and pathways in A. thaliana.
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Affiliation(s)
- Reinmar Eggers
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Alexandra Jammer
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Shalinee Jha
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Bianca Kerschbaumer
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Majd Lahham
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Emilia Strandback
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Marina Toplak
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Silvia Wallner
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Andreas Winkler
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria
| | - Peter Macheroux
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010, Graz, Austria.
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Liu J, Qi Y, Chao J, Sathuvalli P, Y Lee L, Li S. CREG1 promotes lysosomal biogenesis and function. Autophagy 2021; 17:4249-4265. [PMID: 33966596 PMCID: PMC8726608 DOI: 10.1080/15548627.2021.1909997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
CREG1 is a small glycoprotein which has been proposed as a transcription repressor, a secretory ligand, a lysosomal, or a mitochondrial protein. This is largely because of lack of antibodies for immunolocalization validated through gain- and loss-of-function studies. In the present study, we demonstrate, using antibodies validated for immunofluorescence microscopy, that CREG1 is mainly localized to the endosomal-lysosomal compartment. Gain- and loss-of-function analyses reveal an important role for CREG1 in both macropinocytosis and clathrin-dependent endocytosis. CREG1 also promotes acidification of the endosomal-lysosomal compartment and increases lysosomal biogenesis. Functionally, overexpression of CREG1 enhances macroautophagy/autophagy and lysosome-mediated degradation, whereas knockdown or knockout of CREG1 has opposite effects. The function of CREG1 in lysosomal biogenesis is likely attributable to enhanced endocytic trafficking. Our results demonstrate that CREG1 is an endosomal-lysosomal protein implicated in endocytic trafficking and lysosomal biogenesis.Abbreviations: AIFM1/AIF: apoptosis inducing factor mitochondria associated 1; AO: acridine orange; ATP6V1H: ATPase H+ transporting V1 subunit H; CALR: calreticulin; CREG: cellular repressor of E1A stimulated genes; CTSC: cathepsin C; CTSD: cathepsin D; EBAG9/RCAS1: estrogen receptor binding site associated antigen 9; EIPA: 5-(N-ethyl-N-isopropyl)amiloride; ER: endoplasmic reticulum; GFP: green fluorescent protein; HEXA: hexosaminidase subunit alpha; IGF2R: insulin like growth factor 2 receptor; LAMP1: lysosomal associated membrane protein 1; M6PR: mannose-6-phosphate receptor, cation dependent; MAPK1/ERK2: mitogen-activated protein kinase 1; MTORC1: mechanistic target of rapamycin kinase complex 1; PDIA2: protein disulfide isomerase family A member 2; SQSTM1/p62: sequestosome 1; TF: transferrin; TFEB: transcription factor EB.
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Affiliation(s)
- Jie Liu
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Yanmei Qi
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Joshua Chao
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Pranav Sathuvalli
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Leonard Y Lee
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Shaohua Li
- Department of Surgery, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
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10
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Song H, Tian X, Liu D, Liu M, Liu Y, Liu J, Mei Z, Yan C, Han Y. CREG1 improves the capacity of the skeletal muscle response to exercise endurance via modulation of mitophagy. Autophagy 2021; 17:4102-4118. [PMID: 33726618 DOI: 10.1080/15548627.2021.1904488] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
CREG1 (cellular repressor of E1A-stimulated genes 1) is involved in tissue homeostasis and influences macroautophagy/autophagy to protect cardiovascular function. However, the physiological and pathological role of CREG1 in the skeletal muscle is not clear. Here, we established a skeletal muscle-specific creg1 knockout mouse model (creg1;Ckm-Cre) by crossing the Creg1-floxed mice (Creg1fl/fl) with a transgenic line expressing Cre recombinase under the muscle-specific Ckm (creatine kinase, muscle) promoter. In creg1;Ckm-Cre mice, the exercise time to exhaustion and running distance were significantly reduced compared to Creg1fl/fl mice at the age of 9 months. In addition, the administration of recombinant (re)CREG1 protein improved the motor function of 9-month-old creg1;Ckm-Cre mice. Moreover, electron microscopy images of 9-month-old creg1;Ckm-Cre mice showed that the mitochondrial quality and quantity were abnormal and associated with increased levels of PINK1 (PTEN induced putative kinase 1) and PRKN/PARKIN (parkin RBR E3 ubiquitin protein ligase) but reduced levels of the mitochondrial proteins PTGS2/COX2, COX4I1/COX4, and TOMM20. These results suggested that CREG1 deficiency accelerated the induction of mitophagy in the skeletal muscle. Mechanistically, gain-and loss-of-function mutations of Creg1 altered mitochondrial morphology and function, impairing mitophagy in C2C12 cells. Furthermore, HSPD1/HSP60 (heat shock protein 1) (401-573 aa) interacted with CREG1 (130-220 aa) to antagonize the degradation of CREG1 and was involved in the regulation of mitophagy. This was the first time to demonstrate that CREG1 localized to the mitochondria and played an important role in mitophagy modulation that determined skeletal muscle wasting during the growth process or disease conditions.Abbreviations: CCCP: carbonyl cyanide m-chlorophenylhydrazone; CKM: creatine kinase, muscle; COX4I1/COX4: cytochrome c oxidase subunit 4I1; CREG1: cellular repressor of E1A-stimulated genes 1; DMEM: dulbecco's modified eagle medium; DNM1L/DRP1: dynamin 1-like; FCCP: carbonyl cyanide p-trifluoro-methoxy phenyl-hydrazone; HSPD1/HSP60: heat shock protein 1 (chaperonin); IP: immunoprecipitation; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; MFF: mitochondrial fission factor; MFN2: mitofusin 2; MYH1/MHC-I: myosin, heavy polypeptide 1, skeletal muscle, adult; OCR: oxygen consumption rate; OPA1: OPA1, mitochondrial dynamin like GTPase; PINK1: PTEN induced putative kinase 1; PPARGC1A/PGC-1α: peroxisome proliferative activated receptor, gamma, coactivator 1 alpha; PRKN/PARKIN: parkin RBR E3 ubiquitin protein ligase; PTGS2/COX2: prostaglandin-endoperoxide synthase 2; RFP: red fluorescent protein; RT-qPCR: real-time quantitative PCR; SQSTM1/p62: sequestosome 1; TFAM: transcription factor A, mitochondrial; TOMM20: translocase of outer mitochondrial membrane 20; VDAC: voltage-dependent anion channel.
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Affiliation(s)
- HaiXu Song
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoxiang Tian
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Dan Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Meili Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Yanxia Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Jing Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Zhu Mei
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Chenghui Yan
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Yaling Han
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
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11
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Liu D, Tian X, Liu Y, Song H, Cheng X, Zhang X, Yan C, Han Y. CREG ameliorates the phenotypic switching of cardiac fibroblasts after myocardial infarction via modulation of CDC42. Cell Death Dis 2021; 12:355. [PMID: 33824277 PMCID: PMC8024263 DOI: 10.1038/s41419-021-03623-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 12/22/2022]
Abstract
Phenotype switching of cardiac fibroblasts into myofibroblasts plays important role in cardiac fibrosis following myocardial infarction (MI). Cellular repressor of E1A-stimulated genes (CREG) protects against vascular and cardiac remodeling induced by angiotensin-II. However, the effects and mechanisms of CREG on phenotype switching of cardiac fibroblasts after MI are unknown. This study aimed to investigate the role of CREG on the phenotype switching of cardiac fibroblasts following MI and its mechanism. Our findings demonstrated that, compared with littermate control mice, cardiac function was deteriorated in CREG+/- mice on day 14 post-MI. Fibrosis size, αSMA, and collagen-1 expressions were increased in the border regions of CREG+/- mice on day 14 post-MI. Conversely, exogenous CREG protein significantly improved cardiac function, inhibited fibrosis, and reduced the expressions of αSMA and collagen-1 in the border regions of C57BL/6J mice on day 14. In vitro, CREG recombinant protein inhibited αSMA and collagen-1 expression and blocked the hypoxia-induced proliferation and migration of cardiac fibroblasts, which was mediated through the inhibition of cell division control protein 42 (CDC42) expression. Our findings could help in establishing new strategies based on the clarification of the role of the key molecule CREG in phenotype switching of cardiac fibroblasts following MI.
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Affiliation(s)
- Dan Liu
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoxiang Tian
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yanxia Liu
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Haixu Song
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoli Cheng
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaolin Zhang
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Chenghui Yan
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China.
| | - Yaling Han
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, China.
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12
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Turnšek J, Brunson JK, Viedma MDPM, Deerinck TJ, Horák A, Oborník M, Bielinski VA, Allen AE. Proximity proteomics in a marine diatom reveals a putative cell surface-to-chloroplast iron trafficking pathway. eLife 2021; 10:e52770. [PMID: 33591270 PMCID: PMC7972479 DOI: 10.7554/elife.52770] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/15/2021] [Indexed: 12/16/2022] Open
Abstract
Iron is a biochemically critical metal cofactor in enzymes involved in photosynthesis, cellular respiration, nitrate assimilation, nitrogen fixation, and reactive oxygen species defense. Marine microeukaryotes have evolved a phytotransferrin-based iron uptake system to cope with iron scarcity, a major factor limiting primary productivity in the global ocean. Diatom phytotransferrin is endocytosed; however, proteins downstream of this environmentally ubiquitous iron receptor are unknown. We applied engineered ascorbate peroxidase APEX2-based subcellular proteomics to catalog proximal proteins of phytotransferrin in the model marine diatom Phaeodactylum tricornutum. Proteins encoded by poorly characterized iron-sensitive genes were identified including three that are expressed from a chromosomal gene cluster. Two of them showed unambiguous colocalization with phytotransferrin adjacent to the chloroplast. Further phylogenetic, domain, and biochemical analyses suggest their involvement in intracellular iron processing. Proximity proteomics holds enormous potential to glean new insights into iron acquisition pathways and beyond in these evolutionarily, ecologically, and biotechnologically important microalgae.
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Affiliation(s)
- Jernej Turnšek
- Biological and Biomedical Sciences, The Graduate School of Arts and Sciences, Harvard UniversityCambridgeUnited States
- Department of Systems Biology, Harvard Medical SchoolBostonUnited States
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonUnited States
- Integrative Oceanography Division, Scripps Institution of Oceanography, University of California San DiegoLa JollaUnited States
- Center for Research in Biological Systems, University of California San DiegoLa JollaUnited States
- Microbial and Environmental Genomics, J. Craig Venter InstituteLa JollaUnited States
| | - John K Brunson
- Microbial and Environmental Genomics, J. Craig Venter InstituteLa JollaUnited States
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San DiegoLa JollaUnited States
| | | | - Thomas J Deerinck
- National Center for Microscopy and Imaging Research, University of California San DiegoLa JollaUnited States
| | - Aleš Horák
- Biology Centre CAS, Institute of ParasitologyČeské BudějoviceCzech Republic
- University of South Bohemia, Faculty of ScienceČeské BudějoviceCzech Republic
| | - Miroslav Oborník
- Biology Centre CAS, Institute of ParasitologyČeské BudějoviceCzech Republic
- University of South Bohemia, Faculty of ScienceČeské BudějoviceCzech Republic
| | - Vincent A Bielinski
- Synthetic Biology and Bioenergy, J. Craig Venter InstituteLa JollaUnited States
| | - Andrew Ellis Allen
- Integrative Oceanography Division, Scripps Institution of Oceanography, University of California San DiegoLa JollaUnited States
- Microbial and Environmental Genomics, J. Craig Venter InstituteLa JollaUnited States
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13
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Kotabova E, Malych R, Pierella Karlusich JJ, Kazamia E, Eichner M, Mach J, Lesuisse E, Bowler C, Prášil O, Sutak R. Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability. mSystems 2021; 6:e00738-20. [PMID: 33563784 PMCID: PMC7883536 DOI: 10.1128/msystems.00738-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 01/10/2021] [Indexed: 11/20/2022] Open
Abstract
The productivity of the ocean is largely dependent on iron availability, and marine phytoplankton have evolved sophisticated mechanisms to cope with chronically low iron levels in vast regions of the open ocean. By analyzing the metabarcoding data generated from the Tara Oceans expedition, we determined how the global distribution of the model marine chlorarachniophyte Bigelowiella natans varies across regions with different iron concentrations. We performed a comprehensive proteomics analysis of the molecular mechanisms underpinning the adaptation of B. natans to iron scarcity and report on the temporal response of cells to iron enrichment. Our results highlight the role of phytotransferrin in iron homeostasis and indicate the involvement of CREG1 protein in the response to iron availability. Analysis of the Tara Oceans metagenomes and metatranscriptomes also points to a similar role for CREG1, which is found to be widely distributed among marine plankton but to show a strong bias in gene and transcript abundance toward iron-deficient regions. Our analyses allowed us to define a new subfamily of the CobW domain-containing COG0523 putative metal chaperones which are involved in iron metabolism and are restricted to only a few phytoplankton lineages in addition to B. natans At the physiological level, we elucidated the mechanisms allowing a fast recovery of PSII photochemistry after resupply of iron. Collectively, our study demonstrates that B. natans is well adapted to dynamically respond to a changing iron environment and suggests that CREG1 and COG0523 are important components of iron homeostasis in B. natans and other phytoplankton.IMPORTANCE Despite low iron availability in the ocean, marine phytoplankton require considerable amounts of iron for their growth and proliferation. While there is a constantly growing knowledge of iron uptake and its role in the cellular processes of the most abundant marine photosynthetic groups, there are still largely overlooked branches of the eukaryotic tree of life, such as the chlorarachniophytes. In the present work, we focused on the model chlorarachniophyte Bigelowiella natans, integrating physiological and proteomic analyses in culture conditions with the mining of omics data generated by the Tara Oceans expedition. We provide unique insight into the complex responses of B. natans to iron availability, including novel links to iron metabolism conserved in other phytoplankton lineages.
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Affiliation(s)
- Eva Kotabova
- Institute of Microbiology, Academy of Sciences, Centrum Algatech, Trebon, Czech Republic
| | - Ronald Malych
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Juan José Pierella Karlusich
- Institut de Biologie de l'ENS, Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
- CNRS Research Federation for the Study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans GOSEE, Paris, France
| | - Elena Kazamia
- Institut de Biologie de l'ENS, Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
| | - Meri Eichner
- Institute of Microbiology, Academy of Sciences, Centrum Algatech, Trebon, Czech Republic
| | - Jan Mach
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Emmanuel Lesuisse
- Jacques Monod Institute, UMR7592 CNRS, Paris Diderot University, Paris, France
| | - Chris Bowler
- Institut de Biologie de l'ENS, Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
- CNRS Research Federation for the Study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans GOSEE, Paris, France
| | - Ondřej Prášil
- Institute of Microbiology, Academy of Sciences, Centrum Algatech, Trebon, Czech Republic
| | - Robert Sutak
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
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14
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Bochel AJ, Williams C, McCoy AJ, Hoppe HJ, Winter AJ, Nicholls RD, Harlos K, Jones EY, Berger I, Hassan AB, Crump MP. Structure of the Human Cation-Independent Mannose 6-Phosphate/IGF2 Receptor Domains 7-11 Uncovers the Mannose 6-Phosphate Binding Site of Domain 9. Structure 2020; 28:1300-1312.e5. [PMID: 32877646 DOI: 10.1016/j.str.2020.08.002] [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: 05/21/2020] [Revised: 07/13/2020] [Accepted: 08/07/2020] [Indexed: 11/29/2022]
Abstract
The cation-independent mannose 6-phosphate (M6P)/Insulin-like growth factor-2 receptor (CI-MPR/IGF2R) is an ∼300 kDa transmembrane protein responsible for trafficking M6P-tagged lysosomal hydrolases and internalizing IGF2. The extracellular region of the CI-MPR has 15 homologous domains, including M6P-binding domains (D) 3, 5, 9, and 15 and IGF2-binding domain 11. We have focused on solving the first structures of human D7-10 within two multi-domain constructs, D9-10 and D7-11, and provide the first high-resolution description of the high-affinity M6P-binding D9. Moreover, D9 stabilizes a well-defined hub formed by D7-11 whereby two penta-domains intertwine to form a dimeric helical-type coil via an N-glycan bridge on D9. Remarkably the D7-11 structure matches an IGF2-bound state of the receptor, suggesting this may be an intrinsically stable conformation at neutral pH. Interdomain clusters of histidine and proline residues may impart receptor rigidity and play a role in structural transitions at low pH.
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Affiliation(s)
- Alice J Bochel
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, UK
| | - Christopher Williams
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, UK; BrisSynBio, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Airlie J McCoy
- Cambridge Institute for Medical Research, Department of Haematology, University of Cambridge, The Keith Peters Building, Hills Road, Cambridge CB2 0XY, UK
| | - Hans-Jürgen Hoppe
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK; dAInomics Ltd, 66 High Street, Bassingbourn Royston SG8 5LF, UK
| | - Ashley J Winter
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, UK
| | - Ryan D Nicholls
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, UK
| | - Karl Harlos
- Cancer Research UK Receptor Structure Research Group, Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - E Yvonne Jones
- Cancer Research UK Receptor Structure Research Group, Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Imre Berger
- School of Biochemistry, University of Bristol, University Walk, Bristol BS8 1TD, UK
| | - A Bassim Hassan
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK.
| | - Matthew P Crump
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, UK; BrisSynBio, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK.
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15
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Genç Ö, An JY, Fetter RD, Kulik Y, Zunino G, Sanders SJ, Davis GW. Homeostatic plasticity fails at the intersection of autism-gene mutations and a novel class of common genetic modifiers. eLife 2020; 9:55775. [PMID: 32609087 PMCID: PMC7394548 DOI: 10.7554/elife.55775] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/07/2020] [Indexed: 01/08/2023] Open
Abstract
We identify a set of common phenotypic modifiers that interact with five independent autism gene orthologs (RIMS1, CHD8, CHD2, WDFY3, ASH1L) causing a common failure of presynaptic homeostatic plasticity (PHP) in Drosophila. Heterozygous null mutations in each autism gene are demonstrated to have normal baseline neurotransmission and PHP. However, PHP is sensitized and rendered prone to failure. A subsequent electrophysiology-based genetic screen identifies the first known heterozygous mutations that commonly genetically interact with multiple ASD gene orthologs, causing PHP to fail. Two phenotypic modifiers identified in the screen, PDPK1 and PPP2R5D, are characterized. Finally, transcriptomic, ultrastructural and electrophysiological analyses define one mechanism by which PHP fails; an unexpected, maladaptive up-regulation of CREG, a conserved, neuronally expressed, stress response gene and a novel repressor of PHP. Thus, we define a novel genetic landscape by which diverse, unrelated autism risk genes may converge to commonly affect the robustness of synaptic transmission.
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Affiliation(s)
- Özgür Genç
- Department of Biochemistry and Biophysics Kavli Institute for Fundamental Neuroscience University of California, San Francisco, San Francisco, United States
| | - Joon-Yong An
- Department of Psychiatry UCSF Weill Institute for Neurosciences University of California, San Francisco, San Francisco, United States.,School of Biosystem and Biomedical Science, College of Health Science, Korea University, Seoul, Republic of Korea
| | - Richard D Fetter
- Department of Biochemistry and Biophysics Kavli Institute for Fundamental Neuroscience University of California, San Francisco, San Francisco, United States
| | - Yelena Kulik
- Department of Biochemistry and Biophysics Kavli Institute for Fundamental Neuroscience University of California, San Francisco, San Francisco, United States
| | - Giulia Zunino
- Department of Biochemistry and Biophysics Kavli Institute for Fundamental Neuroscience University of California, San Francisco, San Francisco, United States
| | - Stephan J Sanders
- Department of Psychiatry UCSF Weill Institute for Neurosciences University of California, San Francisco, San Francisco, United States
| | - Graeme W Davis
- Department of Biochemistry and Biophysics Kavli Institute for Fundamental Neuroscience University of California, San Francisco, San Francisco, United States
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16
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Gomez-Auli A, Hillebrand LE, Christen D, Günther SC, Biniossek ML, Peters C, Schilling O, Reinheckel T. The secreted inhibitor of invasive cell growth CREG1 is negatively regulated by cathepsin proteases. Cell Mol Life Sci 2020; 78:733-755. [PMID: 32385587 PMCID: PMC7873128 DOI: 10.1007/s00018-020-03528-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/31/2020] [Accepted: 04/13/2020] [Indexed: 01/15/2023]
Abstract
Previous clinical and experimental evidence strongly supports a breast cancer-promoting function of the lysosomal protease cathepsin B. However, the cathepsin B-dependent molecular pathways are not completely understood. Here, we studied the cathepsin-mediated secretome changes in the context of the MMTV-PyMT breast cancer mouse model. Employing the cell-conditioned media from tumor-macrophage co-cultures, as well as tumor interstitial fluid obtained by a novel strategy from PyMT mice with differential cathepsin B expression, we identified an important proteolytic and lysosomal signature, highlighting the importance of this organelle and these enzymes in the tumor micro-environment. The Cellular Repressor of E1A Stimulated Genes 1 (CREG1), a secreted endolysosomal glycoprotein, displayed reduced abundance upon over-expression of cathepsin B as well as increased abundance upon cathepsin B deletion or inhibition. Moreover, it was cleaved by cathepsin B in vitro. CREG1 reportedly could act as tumor suppressor. We show that treatment of PyMT tumor cells with recombinant CREG1 reduced proliferation, migration, and invasion; whereas, the opposite was observed with reduced CREG1 expression. This was further validated in vivo by orthotopic transplantation. Our study highlights CREG1 as a key player in tumor–stroma interaction and suggests that cathepsin B sustains malignant cell behavior by reducing the levels of the growth suppressor CREG1 in the tumor microenvironment.
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Affiliation(s)
- Alejandro Gomez-Auli
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Larissa Elisabeth Hillebrand
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Daniel Christen
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Sira Carolin Günther
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Martin Lothar Biniossek
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Christoph Peters
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany.,German Cancer Research Center (DKFZ) Heidelberg, and German Cancer Consortium (DKTK), Partner Site Freiburg, 79104, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Oliver Schilling
- Institute of Surgical Pathology, University Medical Center, Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany.,German Cancer Research Center (DKFZ) Heidelberg, and German Cancer Consortium (DKTK), Partner Site Freiburg, 79104, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Thomas Reinheckel
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany. .,German Cancer Research Center (DKFZ) Heidelberg, and German Cancer Consortium (DKTK), Partner Site Freiburg, 79104, Freiburg, Germany. .,BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.
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17
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Franco-Luzón L, García-Mulero S, Sanz-Pamplona R, Melen G, Ruano D, Lassaletta Á, Madero L, González-Murillo Á, Ramírez M. Genetic and Immune Changes Associated with Disease Progression under the Pressure of Oncolytic Therapy in A Neuroblastoma Outlier Patient. Cancers (Basel) 2020; 12:cancers12051104. [PMID: 32354143 PMCID: PMC7281487 DOI: 10.3390/cancers12051104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/25/2020] [Accepted: 04/26/2020] [Indexed: 12/19/2022] Open
Abstract
Little is known about the effect of oncolytic adenovirotherapy on pediatric tumors. Here we present the clinical case of a refractory neuroblastoma that responded positively to Celyvir (ICOVIR-5 oncolytic adenovirus delivered by autologous mesenchymal stem cells) for several months. We analyzed samples during tumor evolution in order to identify molecular and mutational features that could explain the interactions between treatment and tumor and how the balance between both of them evolved. We identified a higher adaptive immune infiltration during stabilized disease compared to progression, and also a higher mutational rate and T-cell receptor (TCR) diversity during disease progression. Our results indicate an initial active role of the immune system controlling tumor growth during Celyvir therapy. The tumor eventually escaped from the control exerted by virotherapy through acquisition of resistance by the tumor microenvironment that exhausted the initial T cell response.
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Affiliation(s)
- Lidia Franco-Luzón
- Children Oncohematology Foundation, 28079 Madrid, Spain; (L.F.-L.); (L.M.)
| | - Sandra García-Mulero
- Department of Clinical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain;
- Unit of Biomarkers and Susceptibility, Oncology Data Analytics Program (ODAP), Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L’Hospitalet de Llobregat, 08908 Barcelona, Spain;
| | - Rebeca Sanz-Pamplona
- Unit of Biomarkers and Susceptibility, Oncology Data Analytics Program (ODAP), Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L’Hospitalet de Llobregat, 08908 Barcelona, Spain;
| | - Gustavo Melen
- Biomedical Research Foundation, Niño Jesús Children Hospital, 28009 Madrid, Spain; (G.M.); (Á.G.-M.)
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
| | - David Ruano
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
| | - Álvaro Lassaletta
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
| | - Luís Madero
- Children Oncohematology Foundation, 28079 Madrid, Spain; (L.F.-L.); (L.M.)
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
- Oncohematology Unit, Hospital Infantil Universitario Niño Jesús, 28009 Madrid, Spain
| | - África González-Murillo
- Biomedical Research Foundation, Niño Jesús Children Hospital, 28009 Madrid, Spain; (G.M.); (Á.G.-M.)
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
| | - Manuel Ramírez
- Biomedical Research Foundation, Niño Jesús Children Hospital, 28009 Madrid, Spain; (G.M.); (Á.G.-M.)
- La Princesa Institute of Health Research, 28006 Madrid, Spain; (D.R.); (Á.L.)
- Correspondence: ; Tel.: +34-9150-35938
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