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Shi W, Zhou X, Li X, Peng X, Chen G, Li Y, Zhang C, Yu H, Feng Z, Gou X, Fan J. Human Umbilical Cord Mesenchymal Stem Cells Protect against Renal Ischemia-Reperfusion Injury by Secreting Extracellular Vesicles Loaded with miR-148b-3p That Target Pyruvate Dehydrogenase Kinase 4 to Inhibit Endoplasmic Reticulum Stress at the Reperfusion Stages. Int J Mol Sci 2023; 24:ijms24108899. [PMID: 37240246 DOI: 10.3390/ijms24108899] [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: 03/28/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Renal ischemia-reperfusion (I/R) injury is a leading cause of acute kidney injury (AKI), with high mortality. Recent studies have reported that human umbilical cord mesenchymal stem cells (HucMSCs) play an important role in repairing organ and tissue injuries because of their unique characteristics. However, the potential of HucMSC extracellular vesicles (HucMSC-EVs) to promote the repair of renal tubular cells remains to be explored. This study found that HucMSC-EVs derived from HucMSCs played a protective role and were associated with kidney I/R injury. We found that miR-148b-3p in HucMSC-EVs had a protective effect against kidney I/R injury. HK-2 cells overexpressing miR-148b-3p were protected against I/R injury by inhibiting apoptosis. Next, the target mRNA of miR-148b-3p was predicted online, and the target mRNA, pyruvate dehydrogenase kinase 4 (PDK4), was identified and verified using dual luciferase. We discovered that I/R injury significantly increased endoplasmic reticulum (ER) stress, whereas siR-PDK4 inhibited these effects and protected against I/R injury. Interestingly, after administrating HucMSC-EVs to HK-2 cells, PDK4 expression and ER stress induced by I/R injury were significantly inhibited. HK-2 ingested miR-148b-3p from HucMSC-EVs, and its ER induced by I/R injury was significantly deregulated. This study suggests that HucMSC-EVs protect kidneys from I/R injury during the early I/R stage. These results suggest a new mechanism for HucMSC-EVs in treating AKI and provide a new treatment strategy for I/R injury.
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Affiliation(s)
- Wei Shi
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiang Zhou
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xinyuan Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiang Peng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Guo Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yang Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Chunlin Zhang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Haitao Yu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zhenwei Feng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xin Gou
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jing Fan
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Takala R, Ramji DP, Choy E. The Beneficial Effects of Pine Nuts and Its Major Fatty Acid, Pinolenic Acid, on Inflammation and Metabolic Perturbations in Inflammatory Disorders. Int J Mol Sci 2023; 24:ijms24021171. [PMID: 36674687 PMCID: PMC9861571 DOI: 10.3390/ijms24021171] [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: 10/19/2022] [Revised: 11/24/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
Inflammatory disorders such as atherosclerosis, diabetes and rheumatoid arthritis are regulated by cytokines and other inflammatory mediators. Current treatments for these conditions are associated with significant side effects and do not completely suppress inflammation. The benefits of diet, especially the role of specific components, are poorly understood. Polyunsaturated fatty acids (PUFAs) have several beneficial health effects. The majority of studies on PUFAs have been on omega-3 fatty acids. This review will focus on a less studied fatty acid, pinolenic acid (PNLA) from pine nuts, which typically constitutes up to 20% of its total fatty acids. PNLA is emerging as a dietary PUFA and a promising supplement in the prevention of inflammatory disorders or as an alternative therapy. Some studies have shown the health implications of pine nuts oil (PNO) and PNLA in weight reduction, lipid-lowering and anti-diabetic actions as well as in suppression of cell invasiveness and motility in cancer. However, few reviews have specifically focused on the biological and anti-inflammatory effects of PNLA. Furthermore, in recent bioinformatic studies on human samples, the expression of many mRNAs and microRNAs was regulated by PNLA indicating potential transcriptional and post-transcriptional regulation of inflammatory and metabolic processes. The aim of this review is to summarize, highlight, and evaluate research findings on PNO and PNLA in relation to potential anti-inflammatory benefits and beneficial metabolic changes. In this context, the focus of the review is on the potential actions of PNLA on inflammation along with modulation of lipid metabolism and oxidative stress based on data from both in vitro and in vivo experiments, and human findings, including gene expression analysis.
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Affiliation(s)
- Rabaa Takala
- Division of Infection and Immunity, Tenovus Building, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
| | - Dipak P. Ramji
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
| | - Ernest Choy
- Division of Infection and Immunity, Tenovus Building, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
- Department of Rheumatology, Heath Park, University Hospital of Wales, Cardiff CF14 4XW, UK
- Correspondence:
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Wang M, Pang Y, Guo Y, Tian L, Liu Y, Shen C, Liu M, Meng Y, Cai Z, Wang Y, Zhao W. Metabolic reprogramming: A novel therapeutic target in diabetic kidney disease. Front Pharmacol 2022; 13:970601. [PMID: 36120335 PMCID: PMC9479190 DOI: 10.3389/fphar.2022.970601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic kidney disease (DKD) is one of the most common microvascular complications of diabetes mellitus. However, the pathological mechanisms contributing to DKD are multifactorial and poorly understood. Diabetes is characterized by metabolic disorders that can bring about a series of changes in energy metabolism. As the most energy-consuming organs secondary only to the heart, the kidneys must maintain energy homeostasis. Aberrations in energy metabolism can lead to cellular dysfunction or even death. Metabolic reprogramming, a shift from mitochondrial oxidative phosphorylation to glycolysis and its side branches, is thought to play a critical role in the development and progression of DKD. This review focuses on the current knowledge about metabolic reprogramming and the role it plays in DKD development. The underlying etiologies, pathological damages in the involved cells, and potential molecular regulators of metabolic alterations are also discussed. Understanding the role of metabolic reprogramming in DKD may provide novel therapeutic approaches to delay its progression to end-stage renal disease.
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Pinolenic acid exhibits anti-inflammatory and anti-atherogenic effects in peripheral blood-derived monocytes from patients with rheumatoid arthritis. Sci Rep 2022; 12:8807. [PMID: 35614190 PMCID: PMC9133073 DOI: 10.1038/s41598-022-12763-8] [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] [Received: 02/23/2022] [Accepted: 05/10/2022] [Indexed: 11/30/2022] Open
Abstract
Pinolenic acid (PNLA), an omega-6 polyunsaturated fatty acid from pine nuts, has anti-inflammatory and anti-atherogenic effects. We aimed to investigate the direct anti-inflammatory effect and anti-atherogenic effects of PNLA on activated purified CD14 monocytes from peripheral blood of patients with rheumatoid arthritis (RA) in vitro. Flow cytometry was used to assess the proportions of CD14 monocytes expressing TNF-α, IL-6, IL-1β, and IL-8 in purified monocytes from patients with RA after lipopolysaccharide (LPS) stimulation with/without PNLA pre-treatment. The whole genomic transcriptome (WGT) profile of PNLA-treated, and LPS-activated monocytes from patients with active RA was investigated by RNA-sequencing. PNLA reduced percentage of monocytes expressing cytokines: TNF-α by 23% (p = 0.048), IL-6 by 25% (p = 0.011), IL-1β by 23% (p = 0.050), IL-8 by 20% (p = 0.066). Pathway analysis identified upstream activation of peroxisome proliferator-activated receptors (PPARs), sirtuin3, and let7 miRNA, and KLF15, which are anti-inflammatory and antioxidative. In contrast, DAP3, LIF and STAT3, which are involved in TNF-α, and IL-6 signal transduction, were inhibited. Canonical Pathway analysis showed that PNLA inhibited oxidative phosphorylation (p = 9.14E−09) and mitochondrial dysfunction (p = 4.18E−08), while the sirtuin (SIRTs) signalling pathway was activated (p = 8.89E−06) which interfere with the pathophysiological process of atherosclerosis. Many miRNAs were modulated by PNLA suggesting potential post-transcriptional regulation of metabolic and immune response that has not been described previously. Multiple miRNAs target pyruvate dehydrogenase kinase-4 (PDK4), single-immunoglobulin interleukin-1 receptor molecule (SIGIRR), mitochondrially encoded ATP synthase membrane subunit 6 (MT-ATP6) and acetyl-CoA acyltranferase2 (ACAA2); genes implicated in regulation of lipid and cell metabolism, inflammation, and mitochondrial dysfunction. PNLA has potential anti-atherogenic and immune-metabolic effects on monocytes that are pathogenic in RA and atherosclerosis. Dietary PNLA supplementation regulates key miRNAs that are involved in metabolic, mitochondrial, and inflammatory pathways.
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A Network Pharmacology Study on the Active Components and Targets of the Radix Ginseng and Radix Bupleuri Herb Pair for Treating Nonalcoholic Fatty Liver Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1638740. [PMID: 35178098 PMCID: PMC8846978 DOI: 10.1155/2022/1638740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To explore the potential active components and corresponding target herb pairs of Radix Ginseng (Renshen) and Radix Bupleuri (Chaihu) in the treatment of nonalcoholic fatty liver disease (NAFLD) through network pharmacology and in vitro experiments. METHODS The active components and potential targets of the herb pair of Renshen and Chaihu were screened through a network database system, and Venn analysis was performed with the obtained NAFLD targets. The intersecting targets were analysed for gene ontology (GO) functions and Kyoto Encyclopedia of Genes and Genome (KEGG) pathways, and a protein-protein interaction (PPI) network was generated. Cytoscape software was used to construct active component-target networks of the Renshen and Chaihu herb pair. Free fatty acids were added to the HepG2 cell line to create high-fat models that were treated with different concentrations of stigmasterol. The effect of stigmasterol on the lipid metabolism in HepG2 cells and PPARγ-knockdown cells was determined by oil red O staining, Nile red staining, and TG level. PPARγ and UCP-1 mRNA, and protein expression levels were detected by qRT-PCR and Western blot analyses, respectively. RESULTS Twenty active components obtained from the Renshen and Chaihu herb pair were identified. The herb pair active component-target network showed that both Renshen and Chaihu contained stigmasterol and kaempferol as active components. The PPI network comprised 63 protein nodes. GO enrichment analysis and KEGG pathway enrichment analysis showed that the targets were mainly involved in lipid metabolism. Eight core targets were identified: AKT1, PPARG, MAPK3, TNF, TP53, SIRT1, STAT3, and PPARA. In vitro experiments demonstrated that stigmasterol reduced lipid accumulation and TG levels in HepG2 cells, and the mechanism may have been related to the activation of the PPARγ-UCP-1 signalling pathway. CONCLUSION This study preliminarily illustrated the potential components and corresponding core targets of the Renshen and Chaihu herb pair in treating NAFLD. The effect of stigmasterol on the PPARγ-UCP-1 signalling pathway in enhancing lipid metabolism may represent one of the mechanisms of the Renshen and Chaihu herb pair in the treatment of NAFLD. The results provide new evidence and research insights to reveal the roles of Renshen and Chaihu in the management of NAFLD.
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Wang M, Liang Y, Chen K, Wang M, Long X, Liu H, Sun Y, He B. The management of diabetes mellitus by mangiferin: advances and prospects. NANOSCALE 2022; 14:2119-2135. [PMID: 35088781 DOI: 10.1039/d1nr06690k] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Diabetes mellitus has become one of the most challenging public health problems today. There are still various deficiencies that remain in existing therapeutic drugs. With increasing prevalence and mortality rates, more effective therapeutic agents are required for treatment clinically. As a kind of polyphenol and as a natural product, mangiferin has numerous pharmacological and excellent effects. In this review, the underlying mechanisms of mangiferin on diabetes mellitus and complications will be summarized. Moreover, mangiferin belongs to the BSC IV class and the clinical application and development of mangiferin are limited due to its poor aqueous solubility and fat solubility as well as low bioavailability. Our review also elaborated on improving the solubility of mangiferin by changing the dosage form and introduced the existing results, which hope to provide useful reference for mangiferin for further treating diabetes. In conclusion, mangiferin might be a potential adjuvant therapy for the treatment of diabetes mellitus and complications in the future.
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Affiliation(s)
- Mengdi Wang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Yan Liang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Keqi Chen
- Department of Clinical laboratory, Qingdao special servicemen recuperation centre of PLA navy, Qingdao 266021, China
| | - Maolong Wang
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Xuehua Long
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - HongLing Liu
- Department of Pharmacy, Affiliated Hospital of Qingdao University, Qingdao 266000, China.
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Spleen proteome profiling of dairy goats infected with C. pseudotuberculosis by TMT-based quantitative proteomics approach. J Proteomics 2021; 248:104352. [PMID: 34411763 DOI: 10.1016/j.jprot.2021.104352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/03/2021] [Accepted: 08/09/2021] [Indexed: 12/27/2022]
Abstract
Corynebacterium pseudotuberculosis (C.pseudotuberculosis) is a zoonotic pathogen that can cause cheese lymphadenitis in goats. In order to obtain detailed information about the pathogenesis and host immune response of goats infected with C.pseudotuberculosis, we used tandem mass tag (TMT)-labeling proteomic analysis to detect differentially expressed proteins (DEPs) in dairy goats infected with C.pseudotuberculosis, and confirmed the altered proteins with western blot. A total of 6611 trusted proteins were identified, and 126 proteins were differentially abundant. Gene ontology (GO) analysis showed that all DEPs were annotated as biological processes, cell composition, and molecular functions. Biological processes mainly involve acute inflammation and immune response; cell components mainly involve extracellular areas and high-density lipoprotein particles; molecular functions are mainly antigen binding, ferric iron binding, and iron ion binding. KEGG analysis showed that a total of 102 pathways were significantly enriched, mainly lysosomes, phagosomes, and mineral absorption pathways. Our findings provided the relevant knowledge of spleen protein levels in goats infected with C.pseudotuberculosis and revealed the complex molecular pathways and immune response mechanisms in the process of C.pseudotuberculosis infection. SIGNIFICANCE: C.pseudotuberculosis is the most fatal infectious disease in dairy goats, causing huge economic losses. However, the molecular pathways and immune response mechanisms of C.pseudotuberculosis infection in goats remain unclear. Therefore, we conducted a comparative quantitative proteomics study on dairy goats infected with C.pseudotuberculosis. The results provide a basis for better understanding the complexity of C.pseudotuberculosis infection, reveal the complex molecular pathways and immune response mechanisms in C.pseudotuberculosis infection, and provide some clues for identifying potential therapeutic targets. This is the first report to show that C.pseudotuberculosis infection in dairy goats can disrupt the immune response mechanism and lead to massive immune cell death. The study provided new findings on the interaction between C.pseudotuberculosis and the host.
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Takala R, Ramji DP, Andrews R, Zhou Y, Burston J, Choy E. Anti-inflammatory and immunoregulatory effects of pinolenic acid in rheumatoid arthritis. Rheumatology (Oxford) 2021; 61:992-1004. [PMID: 34080609 PMCID: PMC8889292 DOI: 10.1093/rheumatology/keab467] [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: 02/15/2021] [Revised: 05/18/2021] [Indexed: 11/23/2022] Open
Abstract
Objectives In pre-clinical studies, pinolenic acid (PNLA), an omega-6-polyunsaturated fatty acid from pine nuts, has shown anti-inflammatory effects. We aimed to investigate the effect of PNLA in human cell lines and peripheral blood mononuclear cells (PBMCs) from RA patients and healthy controls (HCs). Methods A modified Boyden chamber was used to assess chemokine-induced migration of THP-1 monocytes. Macropinocytosis was assessed using Lucifer yellow and oxidized low-density lipoprotein (oxLDL) uptake using DiI-labelled oxLDL in THP-1 macrophages and human monocyte-derived macrophages (HMDMs). IL-6, TNF-α and prostaglandin E2 (PGE2) release by lipopolysaccharide (LPS)-stimulated PBMCs from RA patients and HCs was measured by ELISA. The transcriptomic profile of PNLA-treated, LPS-activated PBMCs was investigated by RNA-sequencing. Results PNLA reduced THP-1 cell migration by 55% (P < 0.001). Macropinocytosis and DiI-oxLDL uptake were reduced by 50% (P < 0.001) and 40% (P < 0.01), respectively, in THP-1 macrophages and 40% (P < 0.01) and 25% (P < 0.05), respectively, in HMDMs. PNLA reduced IL-6 and TNF-α release from LPS-stimulated PBMCs from RA patients by 60% (P < 0.001) and from HCs by 50% and 35%, respectively (P < 0.01). PNLA also reduced PGE2 levels in such PBMCs from RA patients and HCs (P < 0.0001). Differentially expressed genes whose expression was upregulated included pyruvate dehydrogenase kinase-4, plasminogen activator inhibitor-1, fructose bisphosphatase1 and N-Myc downstream-regulated gene-2, which have potential roles in regulating immune and metabolic pathways. Pathway analysis predicted upstream activation of the nuclear receptors peroxisome proliferator-activated receptors involved in anti-inflammatory processes, and inhibition of nuclear factor-κB and signal transducer and activator of transcription 1. Conclusions PNLA has immune-metabolic effects on monocytes and PBMCs that are pathogenic in RA and atherosclerosis. Dietary PNLA supplementation may be beneficial in RA.
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Affiliation(s)
- Rabaa Takala
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK.,College of Biomedical and Life Sciences, School of Biosciences, Cardiff University, Cardiff, UK
| | - Dipak P Ramji
- College of Biomedical and Life Sciences, School of Biosciences, Cardiff University, Cardiff, UK
| | - Robert Andrews
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - You Zhou
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK.,Systems Immunity University Research Institute, Cardiff University, Cardiff, UK
| | - James Burston
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Ernest Choy
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK.,CREATE Centre, Division of infection and immunity, School of Medicine, Cardiff University, Cardiff, UK.,University Hospital of Wales, Rheumatology, Cardiff, UK
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Wang WT, Zhang DJ, Liu ZG, Peng FG, Wang L, Fu B, Wu SH, Li ZQ, Guo ZH, Liu D. Identification of differentially expressed genes in adipose tissue of min pig and large white pig using RNA-seq. ACTA AGR SCAND A-AN 2019. [DOI: 10.1080/09064702.2019.1611912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- W. T. Wang
- College of Wildlife Resource, Northeast Forestry University, Harbin, People’s Republic of China
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - D. J. Zhang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - Z. G. Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - F. G. Peng
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - L. Wang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - B. Fu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - S. H. Wu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - Z. Q. Li
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - Z. H. Guo
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - D. Liu
- College of Wildlife Resource, Northeast Forestry University, Harbin, People’s Republic of China
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
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Wang J, Qian Y, Gao M. Overexpression of PDK4 is associated with cell proliferation, drug resistance and poor prognosis in ovarian cancer. Cancer Manag Res 2018; 11:251-262. [PMID: 30636897 PMCID: PMC6307676 DOI: 10.2147/cmar.s185015] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose Ovarian cancer is a major type of gynecological malignancy which characterized by the chemoresistance, heterogeneity and highly metastasis. However, the mechanism underlying the progression of ovarian cancer remains elusive. Pyruvate dehydrogenase kinase family plays critical roles in tumorigenesis, and PDK4 has been demonstrated to be an oncogene in many types of cancers. The aim of this study was to identify the role of PDK4 in ovarian cancer. Methods We explored the PDK4 expression according to the public database containing patients with different effect of chemotherapy. Cell proliferation and invasion assays were used to determine the function of PDK4. Mice xenograft experiment was conducted to test the pro-tumorigenesis function of PDK4 in vivo. Cell apoptosis under treatment of chemo drugs was detected by flow cytometry and TUNEL analysis. Spheroid formation assay and CD133+ cell population were used to determine the PDK4-induced stem-like traits. Immunohistochemical staining was performed to test the expression of PDK4 in ovarian cancer tissues, and Kaplan– Meier curve with log-rank test was performed to determine the association between PDK4 expression and ovarian cancer patients’ prognosis. Results Overexpression of PDK4 markedly promoted cell proliferation, invasion and tumor growth in vivo. Furthermore, PDK4 confers cell resistant to chemotherapy-induced apoptosis. Mechanically, we demonstrated that PDK4 induced stem-like traits. Meanwhile, PDK4 expression was significantly evaluated in ovarian cancer tissues compared to that in adjacent non-cancer tissues, and high expression of PDK4 was associated with poor overall survival and progression-free survival of ovarian cancer patients. Conclusion These results identify a novel role of PDK4 in regulating cell stem-like trait, which directly enhances the cell proliferation, invasion and chemoresistance in ovarian cancer, and targeting PDK4 could be a potential approach for ovarian cancer treatments.
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Affiliation(s)
- Jinghao Wang
- Department of Gynecology and Obstetrics, The Second Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yu Qian
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Meiyan Gao
- Department of Biotherapy, Shanxi Provincial Cancer Hospital, Taiyuan, Shanxi 030013, China,
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Wu Q, Liu J, Liu L, Chen Y, Wang J, Leng L, Yu Q, Duan Z, Wang Y. Establishment of an ex Vivo Model of Nonalcoholic Fatty Liver Disease Using a Tissue-Engineered Liver. ACS Biomater Sci Eng 2018; 4:3016-3026. [PMID: 33435021 DOI: 10.1021/acsbiomaterials.8b00652] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Qiao Wu
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Juan Liu
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Lijin Liu
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Yu Chen
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Jie Wang
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Ling Leng
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Qunfang Yu
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Zhongping Duan
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Yunfang Wang
- Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
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Deficiency of pyruvate dehydrogenase kinase 4 sensitizes mouse liver to diethylnitrosamine and arsenic toxicity through inducing apoptosis. LIVER RESEARCH 2018; 2:100-107. [PMID: 31815032 PMCID: PMC6896988 DOI: 10.1016/j.livres.2018.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Pyruvate dehydrogenase kinase 4 (PDK4) is a metabolism switch that regulates glucose oxidation and the tricarboxylic acid cycle (TCA cycle) in the mitochondria. Liver detoxifies xenobiotics and is constantly challenged by various injuries. This study aims at understanding how the loss of the metabolism regulator PDK4 contributes to liver injuries. METHODS Wild-type (WT) and Pdk4 knockout (Pdk4 -/-) mice of different ages were examined for spontaneous hepatic apoptosis. Juvenile or adult mice of two genotypes were insulted by diethylnitrosamine (DEN), arsenic, galactosamine (GalN)/lipopolysaccharide (LPS), anti-CD95 (Jo2) antibody or carbon tetrachloride (CCl4). Liver injury was monitored by blood biochemistry test. Apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, poly (ADP-ribose) polymerase (PARP) cleavage, and caspase activity assay. Inflammatory response was determined by nuclear factor (NF)-κB activation and the activation of NF-κB target genes. Primary hepatocytes were isolated and cell viability was evaluated by MTS assay. RESULTS We showed that systematic Pdk4 -/- in mice resulted in age-dependent spontaneous hepatic apoptosis. PDK4-deficiency increased the toxicity of DEN in juvenile mice, which correlated with a lethal consequence and massive hepatic apoptosis. Similarly, chronic arsenic administration induced more severe hepatic apoptosis in Pdk4 -/- mice compared to WT control mice. An aggravated hepatic NF-κB mediated-inflammatory response was observed in Pdk4 -/- mice livers. In vitro, Pdk4-deficient primary hepatocytes were more vulnerable to DEN and arsenic challenges and displayed higher caspase activity than wild type cells. Notably, hepatic PDK4 mRNA level was remarkably reduced during acute liver failure induced by GalN/LPS or Jo2 antibody. The diminished PDK4 expression was also observed in CCl4-induced acute liver injury. CONCLUSIONS PDK4 may contribute to the protection from apoptotic injury in mouse liver.
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Palomer X, Pizarro-Delgado J, Vázquez-Carrera M. Emerging Actors in Diabetic Cardiomyopathy: Heartbreaker Biomarkers or Therapeutic Targets? Trends Pharmacol Sci 2018; 39:452-467. [PMID: 29605388 DOI: 10.1016/j.tips.2018.02.010] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/20/2018] [Accepted: 02/27/2018] [Indexed: 12/14/2022]
Abstract
The diabetic heart is characterized by metabolic disturbances that are often accompanied by local inflammation, oxidative stress, myocardial fibrosis, and cardiomyocyte apoptosis. Overall changes result in contractile dysfunction, concentric left ventricular (LV) hypertrophy, and dilated cardiomyopathy, that together affect cardiac output and eventually lead to heart failure, the foremost cause of death in diabetic patients. There are currently several validated biomarkers for the diagnosis and risk assessment of cardiac diseases, but none is capable of discriminating patients with diabetic cardiomyopathy (DCM). In this review we point to several novel candidate biomarkers from new activated molecular pathways (including microRNAs) with the potential to detect or prevent DCM in its early stages, or even to treat it once established. The prospective use of selected biomarkers that integrate inflammation, oxidative stress, fibrosis, and metabolic dysregulation is widely discussed.
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Affiliation(s)
- Xavier Palomer
- Department of Pharmacology, Toxicology, and Therapeutic Chemistry, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain; Research Institute, Hospital Sant Joan de Déu, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Javier Pizarro-Delgado
- Department of Pharmacology, Toxicology, and Therapeutic Chemistry, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain; Research Institute, Hospital Sant Joan de Déu, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Manuel Vázquez-Carrera
- Department of Pharmacology, Toxicology, and Therapeutic Chemistry, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain; Research Institute, Hospital Sant Joan de Déu, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
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Gilglioni EH, Chang J, Duijst S, Go S, Adam AAA, Hoekstra R, Verhoeven AJ, Ishii‐Iwamoto EL, Oude Elferink RP. Improved oxygenation dramatically alters metabolism and gene expression in cultured primary mouse hepatocytes. Hepatol Commun 2018; 2:299-312. [PMID: 29507904 PMCID: PMC5831026 DOI: 10.1002/hep4.1140] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/11/2017] [Accepted: 12/05/2017] [Indexed: 01/04/2023] Open
Abstract
Primary hepatocyte culture is an important in vitro system for the study of liver functions. In vivo, hepatocytes have high oxidative metabolism. However, oxygen supply by means of diffusion in in vitro static cultures is much less than that by blood circulation in vivo. Therefore, we investigated whether hypoxia contributes to dedifferentiation and deregulated metabolism in cultured hepatocytes. To this end, murine hepatocytes were cultured under static or shaken (60 revolutions per minute) conditions in a collagen sandwich. The effect of hypoxia on hepatocyte cultures was examined by metabolites in media and cells, hypoxia-inducible factors (HIF)-1/2α western blotting, and real-time quantitative polymerase chain reaction for HIF target genes and key genes of glucose and lipid metabolism. Hepatocytes in shaken cultures showed lower glycolytic activity and triglyceride accumulation than static cultures, compatible with improved oxygen delivery and mitochondrial energy metabolism. Consistently, static cultures displayed significant HIF-2α expression, which was undetectable in freshly isolated hepatocytes and shaken cultures. Transcript levels of HIF target genes (glyceraldehyde 3-phosphate dehydrogenase [Gapdh], glucose transporter 1 [Glut1], pyruvate dehydrogenase kinase 1 [Pdk1], and lactate dehydrogenase A [Ldha]) and key genes of lipid metabolism, such as carnitine palmitoyltransferase 1 (Cpt1), apolipoprotein B (Apob), and acetyl-coenzyme A carboxylase 1 (Acc1), were significantly lower in shaken compared to static cultures. Moreover, expression of hepatocyte nuclear factor 4α (Hnf4α) and farnesoid X receptor (Fxr) were better preserved in shaken cultures as a result of improved oxygen delivery. We further revealed that HIF-2 signaling was involved in hypoxia-induced down-regulation of Fxr. Conclusion: Primary murine hepatocytes in static culture suffer from hypoxia. Improving oxygenation by simple shaking prevents major changes in expression of metabolic enzymes and aberrant triglyceride accumulation; in addition, it better maintains the differentiation state of the cells. The shaken culture is, therefore, an advisable strategy for the use of primary hepatocytes as an in vitro model. (Hepatology Communications 2018;2:299-312).
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Affiliation(s)
- Eduardo H. Gilglioni
- Department of Biochemistry, Laboratory of Experimental SteatosisUniversity of MaringáMaringáBrazil
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Jung‐Chin Chang
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Suzanne Duijst
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Simei Go
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Aziza A. A. Adam
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
- Surgical Laboratory, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Ruurdtje Hoekstra
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
- Surgical Laboratory, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Arthur J. Verhoeven
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Emy L. Ishii‐Iwamoto
- Department of Biochemistry, Laboratory of Experimental SteatosisUniversity of MaringáMaringáBrazil
| | - Ronald P.J. Oude Elferink
- Tytgat Institute for Liver and Intestinal Research, Academic Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
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Cardiac transcriptome profiling of diabetic Akita mice using microarray and next generation sequencing. PLoS One 2017; 12:e0182828. [PMID: 28837672 PMCID: PMC5570368 DOI: 10.1371/journal.pone.0182828] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/25/2017] [Indexed: 01/10/2023] Open
Abstract
Although diabetes mellitus (DM) causes cardiomyopathy and exacerbates heart failure, the underlying molecular mechanisms for diabetic cardiomyopathy/heart failure are poorly understood. Insulin2 mutant (Ins2+/-) Akita is a mouse model of T1DM, which manifests cardiac dysfunction. However, molecular changes at cardiac transcriptome level that lead to cardiomyopathy remain unclear. To understand the molecular changes in the heart of diabetic Akita mice, we profiled cardiac transcriptome of Ins2+/- Akita and Ins2+/+ control mice using next generation sequencing (NGS) and microarray, and determined the implications of differentially expressed genes on various heart failure signaling pathways using Ingenuity pathway (IPA) analysis. First, we validated hyperglycemia, increased cardiac fibrosis, and cardiac dysfunction in twelve-week male diabetic Akita. Then, we analyzed the transcriptome levels in the heart. NGS analyses on Akita heart revealed 137 differentially expressed transcripts, where Bone Morphogenic Protein-10 (BMP10) was the most upregulated and hairy and enhancer of split-related (HELT) was the most downregulated gene. Moreover, twelve long non-coding RNAs (lncRNAs) were upregulated. The microarray analyses on Akita heart showed 351 differentially expressed transcripts, where vomeronasal-1 receptor-180 (Vmn1r180) was the most upregulated and WD Repeat Domain 83 Opposite Strand (WDR83OS) was the most downregulated gene. Further, miR-101c and H19 lncRNA were upregulated but Neat1 lncRNA was downregulated in Akita heart. Eleven common genes were upregulated in Akita heart in both NGS and microarray analyses. IPA analyses revealed the role of these differentially expressed genes in key signaling pathways involved in diabetic cardiomyopathy. Our results provide a platform to initiate focused future studies by targeting these genes and/or non-coding RNAs, which are differentially expressed in Akita hearts and are involved in diabetic cardiomyopathy.
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Crump D, Williams KL, Chiu S, Zhang Y, Martin JW. Athabasca Oil Sands Petcoke Extract Elicits Biochemical and Transcriptomic Effects in Avian Hepatocytes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5783-5792. [PMID: 28453253 DOI: 10.1021/acs.est.7b00767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Petroleum coke or "petcoke" is a granular carbonaceous material produced during the upgrading of heavy crude oils, including bitumen. Petcoke dust was recently reported as an environmental contaminant in the Athabasca oil sands region, but the ecotoxicological hazards posed by this complex bitumen-derived material-including those to avian species-have not been characterized. In this study, solvent extracts (x) of delayed and fluid petcoke (xDP and xFP) were prepared and dissolved in dimethyl sulfoxide. A water-accommodated fraction of delayed petcoke (waDP) was also prepared. Graded concentrations of xDP, xFP, and waDP were administered to chicken and double-crested cormorant hepatocytes to determine effects on 7-ethoxyresorufin-O-deethylase (EROD) activity, porphyrin accumulation, and mRNA expression. Polycyclic aromatic compounds (PACs) were characterized, and xDP, xFP, and waDP had total PAC concentrations of 93 000, 270, and 5.3 ng/mL. The rank order of biochemical and transcriptomic responses was xDP > xFP > waDP (e.g., EROD EC50s were lower for xDP compared to xFP and waDP). A total of 22, 18, and 4 genes were altered following exposure to the highest concentrations of xDP, xFP, and waDP, respectively, using a chicken PCR array comprising 27 AhR-related genes. To provide more exhaustive coverage of potential toxicity pathways being impacted, two avian ToxChip PCR arrays-chicken and double-crested cormorant-were utilized, and xDP altered the expression of more genes than xFP. Traditional PAC-related toxicity pathways and novel mechanisms of action were identified in two avian species following petcoke extract exposure. Extrapolation to real-world exposure scenarios must consider the bioavailability of the extracted PACs compared to those in exposed organisms.
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Affiliation(s)
- Doug Crump
- Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada, National Wildlife Research Centre, Carleton University , Ottawa, Ontario K1A 0H3, Canada
| | - Kim L Williams
- Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada, National Wildlife Research Centre, Carleton University , Ottawa, Ontario K1A 0H3, Canada
| | - Suzanne Chiu
- Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada, National Wildlife Research Centre, Carleton University , Ottawa, Ontario K1A 0H3, Canada
| | - Yifeng Zhang
- Department of Laboratory Medicine and Pathology, University of Alberta , Edmonton, Alberta T6G 2G3, Canada
| | - Jonathan W Martin
- Department of Laboratory Medicine and Pathology, University of Alberta , Edmonton, Alberta T6G 2G3, Canada
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Wang XY, Yu HZ, Geng L, Xu JP, Yu D, Zhang SZ, Ma Y, Fei DQ. Comparative Transcriptome Analysis of Bombyx mori (Lepidoptera) Larval Midgut Response to BmNPV in Susceptible and Near-Isogenic Resistant Strains. PLoS One 2016; 11:e0155341. [PMID: 27168061 PMCID: PMC4864234 DOI: 10.1371/journal.pone.0155341] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 04/27/2016] [Indexed: 01/04/2023] Open
Abstract
Bombyx mori nucleopolyhedrovirus (BmNPV) is one of the primary pathogens causing severe economic losses in sericulture. However, the molecular mechanism of silkworm resistance to BmNPV remains largely unknown. Here, the recurrent parent P50 (susceptible strain) and the near-isogenic line BC9 (resistance strain) were used in a comparative transcriptome study examining the response to infection with BmNPV. A total of 14,300 unigenes were obtained from two different resistant strains; of these, 869 differentially expressed genes (DEGs) were identified after comparing the four transcriptomes. Many DEGs associated with protein metabolism, cytoskeleton, and apoptosis may be involved in the host response to BmNPV infection. Moreover, some immunity related genes were also altered following BmNPV infection. Specifically, after removing genetic background and individual immune stress response genes, 22 genes were found to be potentially involved in repressing BmNPV infection. These genes were related to transport, virus replication, intracellular innate immune, and apoptosis. Our study provided an overview of the molecular mechanism of silkworm resistance to BmNPV infection and laid a foundation for controlling BmNPV in the future.
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Affiliation(s)
- Xue-Yang Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Hai-Zhong Yu
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Lei Geng
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Jia-Ping Xu
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
- * E-mail:
| | - Dong Yu
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Shang-Zhi Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Yan Ma
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
| | - Dong-Qiong Fei
- School of Life Sciences, Anhui Agricultural University, Hefei, People’s Republic of China
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