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Wang Y, Liu Y, Wang Y, Zhang A, Xie W, Zhang H, Weng Q, Xu M. Investigation of seasonal changes in lipid synthesis and metabolism-related genes in the oviduct of Chinese brown frog (<em>Rana dybowskii</em>). Eur J Histochem 2023; 67:3890. [PMID: 38116875 PMCID: PMC10773197 DOI: 10.4081/ejh.2023.3890] [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: 10/17/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023] Open
Abstract
A peculiar physiological characteristic of the Chinese brown frog (Rana dybowskii) is that its oviduct dilates during pre-brumation rather than during the breeding season. This research aimed to examine the expression of genes connected with lipid synthesis and metabolism in the oviduct of R. dybowskii during both the breeding season and pre-brumation. We observed significant changes in the weight and size of the oviduct between the breeding season and pre-brumation. Furthermore, compared to the breeding season, pre-brumation exhibited significantly lower triglyceride content and a marked increase in free fatty acid content. Immunohistochemical results revealed the spatial distribution of triglyceride synthase (Dgat1), triglyceride hydrolase (Lpl and Hsl), fatty acid synthase (Fasn), and fatty acid oxidases (Cpt1a, Acadl, and Hadh) in oviductal glandular cells and epithelial cells during both the breeding season and pre-brumation. While the mRNA levels of triglycerides and free fatty acid synthesis genes (dgat1 and fasn) did not show a significant difference between the breeding season and pre-brumation, the mRNA levels of genes involved in triglycerides and free fatty acid metabolism (lpl, cpt1a, acadl, acox and hadh) were considerably higher during pre-brumation. Furthermore, the R. dybowskii oviduct's transcriptomic and metabolomic data confirmed differential expression of genes and metabolites enriched in lipid metabolism signaling pathways during both the breeding season and pre-brumation. Overall, these results suggest that alterations in lipid synthesis and metabolism during pre-brumation may potentially influence the expanding size of the oviduct, contributing to the successful overwintering of R. dybowskii.
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Affiliation(s)
- Yankun Wang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Yuning Liu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Yawei Wang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Ao Zhang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Wenqian Xie
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Haolin Zhang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Qiang Weng
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Meiyu Xu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
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2
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Tong F, Wang P, Chen Z, Liu Y, Wang L, Guo J, Li Z, Cai H, Wei J. Combined Ferromagnetic Nanoparticles for Effective Periodontal Biofilm Eradication in Rat Model. Int J Nanomedicine 2023; 18:2371-2388. [PMID: 37192894 PMCID: PMC10182795 DOI: 10.2147/ijn.s402410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/26/2023] [Indexed: 05/18/2023] Open
Abstract
Introduction The critical challenge for periodontitis therapy is thoroughly eliminating the dental plaque biofilm, particularly penetrating the deep periodontal tissue. Regular therapeutic strategies are insufficient to penetrate the plaque without disturbing the commensal microflora of the oral cavity. Here, we constructed a Fe3O4 magnetic nanoparticle loading minocycline (FPM NPs) to penetrate the biofilm physically and effectively eliminate periodontal biofilm. Methods In order to penetrate and remove the biofilm effectively, Fe3O4 magnetic nanoparticles were modified with minocycline using a co-precipitation method. The particle size and dispersion of the nanoparticles were characterized by transmission electron microscopy, scanning electron microscopy, and dynamic light scattering. The antibacterial effects were examined to verify the magnetic targeting of FPM NPs. Confocal laser scanning microscopy was employed to check the effect of FPM + MF and develop the best FPM NPs treatment strategy. Additionally, the therapeutic effect of FPM NPs was investigated in periodontitis rat models. The expression of IL-1β, IL-6, and TNF-α in periodontal tissues was measured by qRT-PCR and Western blot. Results The multifunctional nanoparticles exhibited intense anti-biofilm activity and good biocompatibility. The magnetic forces could pull FMP NPs against the biofilm mass and kill bacteria deep in the biofilms both in vivo and in vitro. The integrity of the bacterial biofilm is disrupted under the motivation of the magnetic field, allowing for improved drug penetration and antibacterial performance. The periodontal inflammation recovered well after FPM NPs treatment in rat models. Furthermore, FPM NPs could be monitored in real-time and have magnetic targeting potentials. Conclusion FPM NPs exhibit good chemical stability and biocompatibility. The novel nanoparticle presents a new approach for treating periodontitis and provides experimental support for using magnetic-targeted nanoparticles in clinic applications.
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Affiliation(s)
- Fei Tong
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi Province, 330031, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Pei Wang
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Ziqiang Chen
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Yifan Liu
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Lianguo Wang
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Jun Guo
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Zhihua Li
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
| | - Hu Cai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi Province, 330031, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
- Correspondence: Hu Cai, School of Chemistry and Chemical Engineering, Nanchang University, 999# Xuefu Road, Honggutan District, Nanchang, Jiangxi, 330031, People’s Republic of China, Tel +86 791 83969514, Email
| | - Junchao Wei
- School of Stomatology, Nanchang University, Nanchang, 330006, People’s Republic of China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi Province, 330031, People’s Republic of China
- The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province, 330006, People’s Republic of China
- Jiangxi Province Clinical Research Center for Oral Diseases, Nanchang, 330006, People’s Republic of China
- Junchao Wei, School of Stomatology, Nanchang University, 49# Fuzhou Road, Donghu District, Nanchang, Jiangxi, 330006, People’s Republic of China, Tel +86 791 86236950, +86 791 6361141, Email
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3
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Zhang R, Gao J, Xie H, Sun Y, Zhang Y, Song J, Xiang N, Li Z. The Prepropalustrin-2CE2 and Preprobrevinin-2CE3 Gene from Rana Chensinensis: Gene Expression, Genomic Organization, and Functional Analysis of the Promoter Activity. Protein Pept Lett 2021; 29:143-155. [PMID: 34823453 DOI: 10.2174/0929866528666211125105627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/25/2021] [Accepted: 10/12/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Palustrin-2CE2 and brevinin-2CE3 are antimicrobial peptides from Rana chensinensis. In R. chensinensis tadpoles, the expression of prepropalustrin-2CE2 and preprobrevinin-2CE3 increased with the developmental stage. In addition, the expression of the two genes was dramatically upregulated with stimulation by Escherichia coli, Staphylococcus aureus, and the chemical lipopolysaccharide (LPS). The genomic organization of the two antimicrobial peptide genes was confirmed. Both prepropalustrin-2CE2 and preprobrevinin-2CE3 contain three exons separated by two large introns. Additionally, several presumed transcription factor binding sites were identified in the promoter sequence. Functional analysis of the promoter was performed using a luciferase reporter system, and further confirmed by yeast one-hybrid experiment and EMSA assay. The results indicated that the transcription factors NF-κB and RelA are involved in regulating the expression of prepropalustrin-2CE2 and preprobrevinin-2CE3. As amphibian populations decline globally, this study provides new data demonstrating how frogs defend against pathogens from the environment by regulating AMP expression. For amphibians, antimicrobial peptides are innate immune molecules that resist adverse external environmental stimuli. However, the regulation mechanism of antimicrobial peptide gene expression in frogs is still unclear. OBJECTIVE The two antimicrobial peptides, palustrin-2CE2 and brevinin-2CE3, are produced under external stimulation in Rana chensinensis. Using this model, we analyzed the gene structure and regulatory elements of the two antimicrobial peptide genes and explored the regulatory effects of related transcription factors on the two genes. METHOD Different stimuli such as E. coli, S. aureus, and chemical substance lipopolysaccharide (LPS) were applied to Rana chensinensis tadpoles at different developmental stages, and antimicrobial peptide expression levels were detected by RT-PCR. Bioinformatics analysis and 5'-RACE and genome walking technologies were employed to analyze the genome structure and promoter region of the antimicrobial peptide genes. With dual-luciferase reporter gene assays, yeast one-hybrid experiment and EMSA assays, we assessed the regulatory effect of the endogenous regulators of the cell on the antimicrobial peptide promoter. RESULTS The transcription levels of prepropalustrin-2CE2 and preprobrevinin-2CE3 were significantly upregulated after different stimulations. Genomic structure analysis showed that both genes contained three exons and two introns. Promoter analysis indicated that there are binding sites for regulatory factors of the NF-κB family in the promoter region, and experiments showed that endogenous NF-κB family regulatory factors in frog cells activate the promoters of the antimicrobial peptide genes. Yeast one-hybrid experiment and EMSA assay demonstrated that RelA and NF-κB1 might interact with specific motifs in the prepropalustrin-2CE2 promoter. CONCLUSION In this paper, we found that the gene expression levels of the antimicrobial peptides, palustrin-2CE2 and brevinin-2CE3, in R. chensinensis will increase under environmental stimuli, and we verified that the changes in gene expression levels are affected by the transcription factors RelA and NF-κB1. The yeast one-hybrid experiment and EMSA assay confirmed that RelA and NF-κB1 could directly interact with the frog antimicrobial peptide gene promoter, providing new data for the regulatory mechanism of antimicrobial peptides in response to environmental stimuli.
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Affiliation(s)
- Ruifen Zhang
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Jing Gao
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Hui Xie
- School of life science and technology, Xidian University, Xian. China
| | - Yan Sun
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Yuan Zhang
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Jing Song
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Nanshu Xiang
- College of Life Sciences, Shaanxi Normal University, Xian. China
| | - Zhi Li
- College of Life Sciences, Shaanxi Normal University, Xian. China
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4
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Ferreira LF, Garcia Neto PG, Titon SCM, Titon B, Muxel SM, Gomes FR, Assis VR. Lipopolysaccharide Regulates Pro- and Anti-Inflammatory Cytokines, Corticosterone, and Melatonin in Toads. Integr Org Biol 2021; 3:obab025. [PMID: 34589667 PMCID: PMC8475549 DOI: 10.1093/iob/obab025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/23/2021] [Accepted: 08/26/2021] [Indexed: 01/29/2023] Open
Abstract
Glucocorticoids and melatonin (MEL) show integrated and complex immunomodulatory effects, mostly described for endotherms, yet underexplored in amphibians. In this context, the RT-qPCR of molecules mediating inflammatory processes in amphibians is a valuable tool to explore the relationships among molecular biology, endocrine mediators, and immune response in these animals. In this study, toads (Rhinella diptycha) received an intraperitoneal saline injection or lipopolysaccharide (LPS; 2 mg/kg). Six hours post-injection, we analyzed plasma corticosterone (CORT) and MEL levels and pro- and anti-inflammatory molecules (IL-1β, IL-6, IL-10, IFN-γ, and C1s). We found increased CORT and decreased MEL levels in response to LPS. Also, IL-1β, IL-6, and IL-10 were upregulated in LPS-injected toads compared with saline-injected toads. Overall, our results demonstrate an LPS-induced inflammatory response with endocrine and immune modulation in R. diptycha toads, exhibiting expected patterns for an inflammatory stimulus within this time frame (6 h post-injection). Toads were responsive to LPS by secreting different cytokines, such as proinflammatory cytokines IL-1β and IL-6, related to immune cell attraction to inflammatory sites and the anti-inflammatory cytokine IL-10, which limits the rate of leukocyte infiltration, inflammation, and downregulates the expression of proinflammatory cytokines. Increased circulating CORT levels are probably associated with the activation of the hypothalamus-pituitary-interrenal axis by the LPS and the endocrine actions of IL-6. Furthermore, decreased circulating MEL levels are likely due to inhibited MEL secretion by the pineal gland by inflammatory stimuli, indicating the activation/existence of the immune-pineal axis in amphibians.
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Affiliation(s)
- L F Ferreira
- Faculdade de Filosofia, Ciências e Letras do Centro Universitário Fundação Santo André, Avenida Príncipe de Gales, 821, Santo André, SP 09060-650, Brasil
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - P G Garcia Neto
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - S C M Titon
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - B Titon
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - S M Muxel
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - F R Gomes
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
| | - V R Assis
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, São Paulo, SP 05508-090, Brasil
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5
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Tan EE, Hopkins RA, Lim CK, Jamuar SS, Ong C, Thoon KC, Koh MJ, Shin EM, Lian DW, Weerasooriya M, Lee CZ, Soetedjo AAP, Lim CS, Au VB, Chua E, Lee HY, Jones LA, James SS, Kaliaperumal N, Kwok J, Tan ES, Thomas B, Wu LX, Ho L, Fairhurst AM, Ginhoux F, Teo AK, Zhang YL, Ong KH, Yu W, Venkatesh B, Tergaonkar V, Reversade B, Chin KC, Tan AM, Liew WK, Connolly JE. Dominant-negative NFKBIA mutation promotes IL-1β production causing hepatic disease with severe immunodeficiency. J Clin Invest 2021; 130:5817-5832. [PMID: 32750042 DOI: 10.1172/jci98882] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/16/2020] [Indexed: 12/12/2022] Open
Abstract
Although IKK-β has previously been shown as a negative regulator of IL-1β secretion in mice, this role has not been proven in humans. Genetic studies of NF-κB signaling in humans with inherited diseases of the immune system have not demonstrated the relevance of the NF-κB pathway in suppressing IL-1β expression. Here, we report an infant with a clinical pathology comprising neutrophil-mediated autoinflammation and recurrent bacterial infections. Whole-exome sequencing revealed a de novo heterozygous missense mutation of NFKBIA, resulting in a L34P IκBα variant that severely repressed NF-κB activation and downstream cytokine production. Paradoxically, IL-1β secretion was elevated in the patient's stimulated leukocytes, in her induced pluripotent stem cell-derived macrophages, and in murine bone marrow-derived macrophages containing the L34P mutation. The patient's hypersecretion of IL-1β correlated with activated neutrophilia and liver fibrosis with neutrophil accumulation. Hematopoietic stem cell transplantation reversed neutrophilia, restored a resting state in neutrophils, and normalized IL-1β release from stimulated leukocytes. Additional therapeutic blockade of IL-1 ameliorated liver damage, while decreasing neutrophil activation and associated IL-1β secretion. Our studies reveal a previously unrecognized role of human IκBα as an essential regulator of canonical NF-κB signaling in the prevention of neutrophil-dependent autoinflammatory diseases. These findings also highlight the therapeutic potential of IL-1 inhibitors in treating complications arising from systemic NF-κB inhibition.
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Affiliation(s)
- Enrica Ek Tan
- Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore
| | - Richard A Hopkins
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Chrissie K Lim
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Saumya S Jamuar
- Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore
| | - Christina Ong
- Duke-NUS Medical School, Singapore.,Department of Paediatrics and
| | - Koh C Thoon
- Duke-NUS Medical School, Singapore.,Department of Paediatrics and
| | - Mark Ja Koh
- Duke-NUS Medical School, Singapore.,Dermatology Service, KK Women's and Children's Hospital, Singapore
| | - Eun Mong Shin
- Institute of Molecular and Cell Biology, A*STAR, Singapore.,Cancer Science Institute of Singapore, Singapore.,National University of Singapore, Singapore
| | - Derrick Wq Lian
- Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Madhushanee Weerasooriya
- Department of Microbiology and Immunology and.,Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | | | | | | | - Veonice B Au
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Edmond Chua
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Hui Yin Lee
- Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Leigh Ann Jones
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Sharmy S James
- Department of Microbiology and Immunology and.,Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Nivashini Kaliaperumal
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Jeffery Kwok
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Ee Shien Tan
- Duke-NUS Medical School, Singapore.,Department of Paediatrics and
| | - Biju Thomas
- Duke-NUS Medical School, Singapore.,Department of Paediatrics and
| | - Lynn Xue Wu
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Lena Ho
- Institute of Molecular and Cell Biology, A*STAR, Singapore
| | | | | | - Adrian Kk Teo
- Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Yong Liang Zhang
- Department of Microbiology and Immunology and.,Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Kok Huar Ong
- Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Weimiao Yu
- Institute of Molecular and Cell Biology, A*STAR, Singapore
| | | | - Vinay Tergaonkar
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Laboratory of NF-κB Signaling, Institute of Molecular and Cell Biology, A*STAR, Singapore.,Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia.,Faculty of Health Sciences, University of Macau, Macau, China
| | - Bruno Reversade
- Institute of Molecular and Cell Biology, A*STAR, Singapore.,Department of Medical Genetics, School of Medicine, Koç University, Istanbul, Turkey.,Department of Paediatrics, National University of Singapore, Singapore.,Institute of Medical Biology, A*STAR, Singapore
| | - Keh Chuang Chin
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore.,Department of Physiology and
| | | | - Woei Kang Liew
- Duke-NUS Medical School, Singapore.,Department of Paediatrics and
| | - John E Connolly
- Program in Translational Immunology, Institute of Molecular and Cell Biology, A*STAR, Singapore.,Department of Paediatrics and.,Department of Microbiology and Immunity, National University of Singapore, Singapore.,Institute of Biomedical Studies, Baylor University Medical Center, Waco, Texas, USA
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Li Q, Xi J, Li B, Li N. MiR‐16, as a potential NF‐κB‐related miRNA, exerts anti‐inflammatory effects on LPS‐induced myocarditis via mediating CD40 expression: A preliminary study. J Biochem Mol Toxicol 2019; 34:e22426. [PMID: 31777165 DOI: 10.1002/jbt.22426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 09/10/2019] [Accepted: 11/14/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Qiang‐Qiang Li
- Department of Cardiology of Integrated Traditional Chinese and Western MedicineAnqiu People's Hospital Weifang Shandong China
| | - Jing Xi
- Department of CardiologyAnqiu People's Hospital Weifang Shandong China
| | - Bing‐Qiang Li
- Department of CardiologyAnqiu People's Hospital Weifang Shandong China
| | - Ning Li
- Department of CardiologyAnqiu People's Hospital Weifang Shandong China
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Chen C, Zhu Z, Hu N, Liang X, Huang W. Leonurine Hydrochloride Suppresses Inflammatory Responses and Ameliorates Cartilage Degradation in Osteoarthritis via NF-κB Signaling Pathway. Inflammation 2019; 43:146-154. [DOI: 10.1007/s10753-019-01104-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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8
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Tenorio-Borroto E, Castañedo N, García-Mera X, Rivadeneira K, Vázquez Chagoyán JC, Barbabosa Pliego A, Munteanu CR, González-Díaz H. Perturbation Theory Machine Learning Modeling of Immunotoxicity for Drugs Targeting Inflammatory Cytokines and Study of the Antimicrobial G1 Using Cytometric Bead Arrays. Chem Res Toxicol 2019; 32:1811-1823. [PMID: 31327231 DOI: 10.1021/acs.chemrestox.9b00154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
ChEMBL biological activities prediction for 1-5-bromofur-2-il-2-bromo-2-nitroethene (G1) is a difficult task for cytokine immunotoxicity. The current study presents experimental results for G1 interaction with mouse Th1/Th2 and pro-inflammatory cytokines using a cytometry bead array (CBA). In the in vitro test of CBA, the results show no significant differences between the mean values of the Th1/Th2 cytokines for the samples treated with G1 with respect to the negative control, but there are moderate differences for cytokine values between different periods (24/48 h). The experiments show no significant differences between the mean values of the pro-inflammatory cytokines for the samples treated with G1, regarding the negative control, except for the values of tumor necrosis factor (TNF) and Interleukin (IL6) between the group treated with G1 and the negative control at 48 h. Differences occur for these cytokines in the periods (24/48 h). The study confirmed that the antimicrobial G1 did not alter the Th1/Th2 cytokines concentration in vitro in different periods, but it can alter TNF and IL6. G1 promotes free radicals production and activates damage processes in macrophages culture. In order to predict all ChEMBL activities for drugs in other experimental conditions, a ChEMBL data set was constructed using 25 biological activities, 1366 assays, 2 assay types, 4 assay organisms, 2 organisms, and 12 cytokine targets. Molecular descriptors calculated with Rcpi and 15 machine learning methods were used to find the best model able to predict if a drug could be active or not against a specific cytokine, in specific experimental conditions. The best model is based on 120 selected molecular descriptors and a deep neural network with area under the curve of the receiver operating characteristic of 0.904 and accuracy of 0.832. This model predicted 1384 G1 biological activities against cytokines in all ChEMBL data set experimental conditions.
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Affiliation(s)
- Esvieta Tenorio-Borroto
- Department of Organic Chemistry, Faculty of Pharmacy , University of Santiago de Compostela , 15782 Santiago de Compostela , Spain.,Center for Research and Advanced Studies in Animal Health, Faculty of Veterinary Medicines and Animal Husbandry , Autonomous University of Mexico State (UAEM) , 50200 Toluca , México
| | - Nilo Castañedo
- Chemical Bioactive Center (CBQ) , Central University of Las Villas (UCLV) , 50100 Santa Clara , Cuba
| | - Xerardo García-Mera
- Department of Organic Chemistry, Faculty of Pharmacy , University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - Kenneth Rivadeneira
- RNASA-IMEDIR, Computer Science Faculty , University of A Coruna (UDC) , 15071 A Coruña , Spain
| | - Juan Carlos Vázquez Chagoyán
- Center for Research and Advanced Studies in Animal Health, Faculty of Veterinary Medicines and Animal Husbandry , Autonomous University of Mexico State (UAEM) , 50200 Toluca , México
| | - Alberto Barbabosa Pliego
- Center for Research and Advanced Studies in Animal Health, Faculty of Veterinary Medicines and Animal Husbandry , Autonomous University of Mexico State (UAEM) , 50200 Toluca , México
| | - Cristian R Munteanu
- RNASA-IMEDIR, Computer Science Faculty , University of A Coruna (UDC) , 15071 A Coruña , Spain.,Biomedical Research Institute of A Coruña (INIBIC) , University Hospital Complex of A Coruña (CHUAC) , 15006 A Coruña , Spain
| | - Humbert González-Díaz
- Department of Organic Chemistry II , University of the Basque Country UPV/EHU , 48940 Leioa , Spain.,IKERBASQUE , Basque Foundation for Science , 48011 Bilbao , Spain
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9
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Zhang XL, An BF, Zhang GC. MiR-27 alleviates myocardial cell damage induced by hypoxia/reoxygenation via targeting TGFBR1 and inhibiting NF-κB pathway. Kaohsiung J Med Sci 2019; 35:607-614. [PMID: 31169351 DOI: 10.1002/kjm2.12092] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/07/2019] [Indexed: 12/13/2022] Open
Abstract
MiR-27 prevents atherosclerosis by inhibiting inflammatory responses induced by lipoprotein lipase. Overexpression of miR-27b attenuates angiotensin-induced atrial fibrosis. Nevertheless, studies have rarely investigated on the effect of miR-27 in cardiomyocyte injury. H9c2 cells were transfected with miR-27 mimic/inhibitor. Then the cell proliferation was tested by MTT assay and the cell apoptosis was detected by flow cytometry. The luciferase activity assay was utilized to analyze the relationship between miR-27 and TGFBR1. Quantificational real-time polymerase chain reaction and western blot were utilized to detect the cardiomyocyte differentiation marker and nuclear factor kappa B (NF-κB) pathway. Our outcomes demonstrated that miR-27 expression was downregulated cardiomyocyte injury subjected to hypoxia/reoxygenation (H/R). Additionally, overexpression of miR-27 could significantly alleviate cardiomyocyte injury by regulating cell activity and apoptosis. The luciferase activity assay confirmed that transforming growth factor ß receptor 1 (TGFBR1) is a direct hallmark of miR-27. Besides, overexpression of miR-27 promoted the expression of TGFBR1 in H/R model. After transfection with miR-27 mimic/inhibitor, the expression of NF-κB pathway-related proteins was decreased/increased. Taken together, our data manifested that miR-27 repressed cardiomyocyte injury induced by H/R via mediating TGFBR1 and inhibiting NF-κB signaling pathway. Furthermore, miR-27/ TGFBR1 might be utilized as hopeful biomarkers for myocardial ischemia diagnosis and treatment.
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Affiliation(s)
- Xue-Lian Zhang
- Department of Internal Medicine-Cardiovascular, Jilin People's Hospital, Changchun, Jilin, People's Republic of China
| | - Bai-Fu An
- Department of Internal Medicine-Cardiovascular, Jilin People's Hospital, Changchun, Jilin, People's Republic of China
| | - Guang-Cheng Zhang
- Department of Internal Medicine-Cardiovascular, Jilin People's Hospital, Changchun, Jilin, People's Republic of China
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10
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Varga JFA, Bui-Marinos MP, Katzenback BA. Frog Skin Innate Immune Defences: Sensing and Surviving Pathogens. Front Immunol 2019; 9:3128. [PMID: 30692997 PMCID: PMC6339944 DOI: 10.3389/fimmu.2018.03128] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 12/18/2018] [Indexed: 01/26/2023] Open
Abstract
Amphibian skin is a mucosal surface in direct and continuous contact with a microbially diverse and laden aquatic and/or terrestrial environment. As such, frog skin is an important innate immune organ and first line of defence against pathogens in the environment. Critical to the innate immune functions of frog skin are the maintenance of physical, chemical, cellular, and microbiological barriers and the complex network of interactions that occur across all the barriers. Despite the global decline in amphibian populations, largely as a result of emerging infectious diseases, we understand little regarding the cellular and molecular mechanisms that underlie the innate immune function of amphibian skin and defence against pathogens. In this review, we discuss the structure, cell composition and cellular junctions that contribute to the skin physical barrier, the antimicrobial peptide arsenal that, in part, comprises the chemical barrier, the pattern recognition receptors involved in recognizing pathogens and initiating innate immune responses in the skin, and the contribution of commensal microbes on the skin to pathogen defence. We briefly discuss the influence of environmental abiotic factors (natural and anthropogenic) and pathogens on the immunocompetency of frog skin defences. Although some aspects of frog innate immunity, such as antimicrobial peptides are well-studied; other components and how they contribute to the skin innate immune barrier, are lacking. Elucidating the complex network of interactions occurring at the interface of the frog's external and internal environments will yield insight into the crucial role amphibian skin plays in host defence and the environmental factors leading to compromised barrier integrity, disease, and host mortality.
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Affiliation(s)
- Joseph F A Varga
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
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11
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Pellicciari C. Histochemistry as a versatile research toolkit in biological research, not only an applied discipline in pathology. Eur J Histochem 2018; 62. [PMID: 30572698 PMCID: PMC6317132 DOI: 10.4081/ejh.2018.3006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 12/16/2022] Open
Abstract
The impressive progress of histochemistry over the last 50 years has led to setting up specific and sensitive techniques to describe dynamic events, through the detection of specific molecules in the very place where they exist in live cells. The scientific field where histochemistry has most largely been applied is histopathology, with the aim to identify disease-specific molecular markers or to elucidate the etiopathological mechanisms. Numerous authors did however apply histochemistry to a variety of other research fields; their interests range from the microanatomy of animal and plant organisms to the cellular mechanisms of life. This is especially apparent browsing the contents of the histochemical journals where the articles on subjects other than pathology are the majority; these journals still keep a pivotal role in the field of cell and tissue biology, while being a forum for a diverse range of biologists whose scientific interests expand the research horizon of histochemistry to ever novel subjects. Thus, histochemistry can always receive inspiring stimuli toward a continuous methodological refinement.
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Affiliation(s)
- Carlo Pellicciari
- University of Pavia, Department of Biology and Biotechnology "Lazzaro Spallanzani".
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12
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Gardner S, Assis VR, Zhao H, Gomes FR, Peatman E, Mendonça MT. Differential gene expression to an LPS challenge in relation to exogenous corticosterone in the invasive cane toad (Rhinella marina). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 88:114-123. [PMID: 30030104 DOI: 10.1016/j.dci.2018.07.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/16/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The cane toad (Rhinella marina) is an invasive amphibian in several parts of the world. Much of the research performed on assessing the dispersal potential of invasive species has focused immunity. Invaders are predicted to rely less on pro-inflammatory immunity, allowing them to allocate energy to dispersal. Elevated stress may play a role in regulation of immune responses used by invasive species. RNA sequencing of spleen tissue from cane toads subjected to an acute LPS challenge revealed genes coding for cytokines involved in typical innate responses such as phagocytic cell recruitment, extravasation, inflammation, and lymphocyte differentiation were significantly upregulated, while toads receiving transdermal application of corticosterone in addition to an LPS injection showed downregulation of genes involved with cell mediated immunity. These results indicate hormonal changes associated with acute stress may alter investment into mounting cell-mediated or humoral responses while allowing for prolonged phagocytic innate responses in this invasive species.
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Affiliation(s)
- Steven Gardner
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
| | - Vania Regina Assis
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, 05508-900, São Paulo, SP, Brazil.
| | - Honggang Zhao
- School of Fisheries, Aquaculture, and Aquatic Sciences, 377 CASIC Bldg, Auburn University, Auburn, AL 36849, USA.
| | - Fernando Ribeiro Gomes
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, 05508-900, São Paulo, SP, Brazil.
| | - Eric Peatman
- School of Fisheries, Aquaculture, and Aquatic Sciences, 377 CASIC Bldg, Auburn University, Auburn, AL 36849, USA.
| | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
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