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McClellan SA, Wright R, Muhammed F, Hazlett LD. Impact of Airborne Exposure to PM 10 Increases Susceptibility to P. aeruginosa Infection. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:722. [PMID: 38928968 PMCID: PMC11203766 DOI: 10.3390/ijerph21060722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024]
Abstract
The effects of exposure to airborne particulate matter with a size of 10 μm or less (PM10) on C57BL/6 mouse corneas, their response to Pseudomonas aeruginosa (PA) infection, and the protective effects of SKQ1 were determined. C57BL/6 mouse corneas receiving PBS or SKQ1 were exposed to control (air) or PM10 for 2 weeks, infected, and the disease was documented by clinical score, PMN quantitation, bacterial plate count, RT-PCR and Western blot. PBS-treated, PM10-exposed corneas did not differ at 1 day postinfection (dpi), but exhibited earlier (3 dpi) corneal thinning compared to controls. By 3 dpi, PM10 significantly increased corneal mRNA levels of several pro-inflammatory cytokines, but decreased IL-10, NQO1, GR1, GPX4, and Nrf2 over control. SKQ1 reversed these effects and Western blot selectively confirmed the RT-PCR results. PM10 resulted in higher viable bacterial plate counts at 1 and 3 dpi, but SKQ1 reduced them at 3 dpi. PM10 significantly increased MPO in the cornea at 3 dpi and was reduced by SKQ1. SKQ1, used as an adjunctive treatment to moxifloxacin, was not significantly different from moxifloxacin alone. Exposure to PM10 increased the susceptibility of C57BL/6 to PA infection; SKQ1 significantly reversed these effects, but was not effective as an adjunctive treatment.
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Affiliation(s)
| | | | | | - Linda D. Hazlett
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (S.A.M.); (R.W.); (F.M.)
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Liu Y, Wenren M, Cheng W, Zhou X, Xu D, Chi C, Lü Z, Liu H. Identification, functional characterization and immune response profiles of interleukin-10 in Nibea albiflora. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109654. [PMID: 38810711 DOI: 10.1016/j.fsi.2024.109654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024]
Abstract
Interleukin-10 (IL-10) is an immunosuppressive cytokine, which plays a vital role in regulating inflammation for inhibiting the generation and function of pro-inflammatory cytokines in vivo or in vitro. In the present study, the full length cDNA of IL-10 was characterized from Nibea albiflora (named as NaIL-10) of 1238 base pairs (bp), containing a 5'-UTR (untranslated region) of 350 bp, a 3'-UTR of 333 bp and an open reading frame (ORF) of 555 bp (Fig. 1A) to encode 184 amino acid residues with a signal peptide at the N-terminus. The sequence analysis showed that NaIL-10 possessed the typical IL-10 family symbolic motif and conversed cysteine residues, similar to its teleost orthologues. Real-time PCR indicated that NaIL-10 had wide distribution in different healthy tissues, with a relatively high expression in immune-related tissues (head kidney, spleen, kidney, liver and gill). Significantly, up-regulations of NaIL-10 after infection against Vibrio parahaemolyticus, Vibrio alginolyticus and Poly I:C were also observed. Subcellular localization manifested that NaIL-10 mainly distributed in the cytoplasm unevenly and aggregately, and there was also a small amount on the cell membrane, indicating that NaIL-10 was secreted to the extracellular space as the known IL-10 homologous molecules. It could co-locate with IL-10 Rα on the membrane of HEK293T cells for their potential interaction, and GST pull-down and Co-IP studies certified the specific and direct interaction between NaIL-10 and NaIL-10 Rα, confirming that an IL-10 ligand-receptor system existed in N.albiflora. The expression of pro-inflammatory cytokines, including TNF-α, IL-6, IL-1β, were dramatically inhibited in LPS-stimulated RAW264.7 macrophages pre-incubated with recombinant NaIL-10 protein, demonstrating its anti-inflammatory roles. Taken together, the results demonstrated the existence of IL-10 ligand-receptor system in N.albiflora for the first time, and indicated the suppressive function of NaIL-10 on pro-inflammatory cytokine expression in inflammatory response, which would be conducive to better comprehending the role of IL-10 in the immunomodulatory mechanisms of teleost.
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Affiliation(s)
- Yue Liu
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Mingming Wenren
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Wei Cheng
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xu Zhou
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Dongdong Xu
- Zhejiang Marine Fisheries Research Institute, Key Lab of Mariculture and Enhancement of Zhejiang province, Zhoushan, 316100, China
| | - Changfeng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhenming Lü
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Huihui Liu
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China.
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Song J, Peng H, Lai M, Kang H, Chen X, Cheng Y, Su X. Relationship between inflammatory-related cytokines with aortic dissection. Int Immunopharmacol 2023; 122:110618. [PMID: 37480750 DOI: 10.1016/j.intimp.2023.110618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/24/2023]
Abstract
Aortic dissection, characterized by severe intramural hematoma formation and acute endometrial rupture, is caused by excessive bleeding within the aortic wall or a severe tear within the intimal layer of the aorta, which subsequently promotes the separation or dissection in the layers of the aortic wall. Epidemiological surveys showed that aortic dissection was most observed among those patients from 55 to 80 years of age, with a prevalence of approximately 40 cases per 100,000 individuals per year, posing serious risks to future health and leading to high mortality. Other risk factors of aortic dissection progression contained dyslipidemia, hypertension, and genetic disorders, such as Marfan syndrome. Currently, emerging evidence indicates the pathological progression of aortic dissection is significantly complicated, which is correlated with the aberrant infiltration of pro-inflammatory cells into the aortic wall, subsequently facilitating the apoptosis of vascular smooth muscle cells (VSMCs) and inducing the aberrant expression of pro-inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interferon (IF). Other pro-inflammatory-related cytokines, including the colony-stimulating factor (CSF), chemotactic factor, and growth factor (GF), played an essential function in facilitating aortic dissection. Multiple studies focused on the important relationship between pro-inflammatory cytokines and aortic dissection, which could deepen the understanding of aortic dissection and further guide the therapeutic strategies in clinical practice. The present review elucidated pro-inflammatory cytokines' functions in modulating the risk of aortic dissection are summarized. Moreover, the emerging evidence that aimed to elucidate the potential mechanisms wherebyvarious pro-inflammatory cytokines affected the pathological development of aortic dissection was also listed.
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Affiliation(s)
- Jingjin Song
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Hua Peng
- Department of Cardiac Macrovascular Surgery, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Min Lai
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Huiyuan Kang
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Xiaofang Chen
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Ye Cheng
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China.
| | - Xin Su
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China.
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Wu J, Gao J, Yi L, Gao N, Wang L, Zhu J, Dai C, Sun L, Guo H, Yu FSX, Wu X. Protective effects of resolvin D1 in Pseudomonas aeruginosa keratitis. Mol Immunol 2023; 158:35-42. [PMID: 37104999 DOI: 10.1016/j.molimm.2023.04.007] [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: 08/06/2022] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
PURPOSE Here, we explored the protective effects of resolvin D1 (RvD1) in Pseudomonas aeruginosa (PA) keratitis. METHODS C57BL/6 (B6) mice were used as an animal model of PA keratitis. Plate counting and clinical scores were used to assess the severity of the infection and the therapeutic effects of RvD1 in the model. Myeloperoxidase assay was used to detect neutrophil infiltration and activity. Quantitative PCR (qPCR) was used to examine the expression of proflammatory and anti-inflammatory mediators. Immunofluorescence staining and qPCR were performed to identify macrophage polarization. RESULTS RvD1 treatment alleviated PA keratitis severity by decreasing corneal bacterial load and inhibiting neutrophil infiltration in the mouse model. Furthermore, RvD1 treatment decreased mRNA levels of TNF-α, IFN-γ, IL-1β, CXCL1, and S100A8/9 while increasing those of IL-1RA, IL-10, and TGF-β1. RvD1 treatment also reduced the aggregation of M1 macrophages and increased that of M2 macrophages. RvD1 provided an auxiliary effect in gatifloxacin-treated mice with PA keratitis. CONCLUSION Based on these findings, RvD1 may improve the prognosis of PA keratitis by inhibiting neutrophil recruitment and activity, dampening the inflammatory response, and promoting M2 macrophage polarization. Thus, RvD1 may be a potential complementary therapy for PA keratitis.
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Affiliation(s)
- Jiayin Wu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China; Department of Ophthalmology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Jianlu Gao
- Department of Ophthalmology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Lili Yi
- Joint Laboratory for Translational Medicine Research, Liaocheng People's Hospital, Liaocheng 252000, China
| | - Nan Gao
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Leyi Wang
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Jing Zhu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Chenyang Dai
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Lin Sun
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Hui Guo
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Fu-Shin X Yu
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Xinyi Wu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China.
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Huertas-Bello M, Cuéllar-Sáenz JA, Rodriguez CN, Cortés-Vecino JA, Navarrete ML, Avila MY, Koudouna E. A Pilot Study to Evaluate Genipin in Staphylococcus aureus and Pseudomonas aeruginosa Keratitis Models: Modulation of Pro-Inflammatory Cytokines and Matrix Metalloproteinases. Int J Mol Sci 2023; 24:ijms24086904. [PMID: 37108070 PMCID: PMC10138382 DOI: 10.3390/ijms24086904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/30/2023] [Accepted: 04/01/2023] [Indexed: 04/29/2023] Open
Abstract
Infectious keratitis is a vision-threatening microbial infection. The increasing antimicrobial resistance and the fact that severe cases often evolve into corneal perforation necessitate the development of alternative therapeutics for effective medical management. Genipin, a natural crosslinker, was recently shown to exert antimicrobial effects in an ex vivo model of microbial keratitis, highlighting its potential to serve as a novel treatment for infectious keratitis. This study aimed to evaluate the antimicrobial and anti-inflammatory effects of genipin in an in vivo model of Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) keratitis. Clinical scores, confocal microscopy, plate count, and histology were carried out to evaluate the severity of keratitis. To assess the effect of genipin on inflammation, the gene expression of pro- and anti-inflammatory factors, including matrix metalloproteinases (MMPs), were evaluated. Genipin treatment alleviated the severity of bacterial keratitis by reducing bacterial load and repressing neutrophil infiltration. The expression of interleukin 1B (IL1B), interleukin 6 (IL6), interleukin 8 (IL8), interleukin 15 (IL15), tumor necrosis factor-α (TNF-α), and interferon γ (IFNγ), as well as MMP2 and MMP9, were significantly reduced in genipin-treated corneas. Genipin promoted corneal proteolysis and host resistance to S. aureus and P. aeruginosa infection by suppressing inflammatory cell infiltration, regulating inflammatory mediators, and downregulating the expression of MMP2 and MMP9.
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Affiliation(s)
- Marcela Huertas-Bello
- Department of Ophthalmology, Faculty of Medicine, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Jerson Andrés Cuéllar-Sáenz
- Grupo de Investigación Parasitología Veterinaria, Department of Animal Health, Faculty of Veterinary Medicine and Zootechnics, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Cristian Nicolas Rodriguez
- Department of Microbiology, Faculty of Medicine, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Jesús Alfredo Cortés-Vecino
- Grupo de Investigación Parasitología Veterinaria, Department of Animal Health, Faculty of Veterinary Medicine and Zootechnics, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Myriam Lucia Navarrete
- Department of Microbiology, Faculty of Medicine, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Marcel Yecid Avila
- Department of Ophthalmology, Faculty of Medicine, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Elena Koudouna
- Department of Ophthalmology, Faculty of Medicine, Bogota DC, Universidad Nacional de Colombia, Bogotá 111321, Colombia
- Structural Biophysics Group, School of Optometry and Vision Sciences, Cardiff University, Cardiff CF24 4HQ, UK
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Shrestha GS, Vijay AK, Stapleton F, White A, Pickford R, Carnt N. Human tear metabolites associated with nucleoside-signalling pathways in bacterial keratitis. Exp Eye Res 2023; 228:109409. [PMID: 36775205 DOI: 10.1016/j.exer.2023.109409] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/17/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
OBJECTIVE The study aimed to profile and quantify tear metabolites associated with bacterial keratitis using both untargeted and targeted metabolomic platforms. METHODS Untargeted metabolomic analysis using liquid-chromatography-Q Exactive-HF mass-spectrometry explored tear metabolites significantly associated with bacterial keratitis (n = 6) compared to healthy participants (n = 6). Differential statistics and principal component analysis determined meaningful metabolite differences between cases and controls. Purines and nucleosides were further quantified and compared between 15 cases and 15 controls in the targeted metabolomic platform using TSQ quantum access triple quadrupole mass spectrometry. Compound quantification was done by plotting the calibration curves and the difference in the compound levels was evaluated using the Wilcoxon rank-sum test. RESULTS In the untargeted analysis, 49 tear metabolites (27 upregulated and 22 downregulated) were differentially expressed between cases and controls. The untargeted analysis indicated that the purine metabolism pathway was the most affected by bacterial keratitis. Metabolite quantification in the targeted analysis further confirmed the upregulation of xanthine (P = 0.02) and downregulation of adenine (P < 0.0001), adenosine (P < 0.0001) and cytidine (P < 0.0001) in the tears of participants with bacterial keratitis compared to that of healthy participants. CONCLUSIONS Bacterial keratitis significantly changes the tear metabolite profile, including five major compound classes such as indoles, amino acids, nucleosides, carbohydrates, and steroids. This study also indicates that tear fluids can be used to map the metabolic pathways and uncover metabolic markers associated with bacterial keratitis. Conceivably, the inhibition of nucleoside synthesis may contribute to the pathophysiology of bacterial keratitis because nucleosides are required for maintaining cellular energy homeostasis and immune adaptability.
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Affiliation(s)
| | | | - Fiona Stapleton
- School of Optometry and Vision Science, UNSW Sydney, Australia
| | - Andrew White
- Department of Ophthalmology, Westmead Hospital, University of Sydney, Australia; Westmead Institute for Medical Research, University of Sydney, Australia
| | - Russell Pickford
- Bioanalytical Mass Spectrometry Facility, UNSW Sydney, Australia
| | - Nicole Carnt
- School of Optometry and Vision Science, UNSW Sydney, Australia; Westmead Institute for Medical Research, University of Sydney, Australia; Institute of Ophthalmology, University College London, United Kingdom
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Li ZZ, Zou YP, Zhu H, Zeng WZ, Ding Y, Su JZ, Yu GY. Establishment of a Beagle Dog Model of Dry Eye Disease. Transl Vis Sci Technol 2023; 12:2. [PMID: 36595279 PMCID: PMC9819666 DOI: 10.1167/tvst.12.1.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/13/2022] [Indexed: 01/04/2023] Open
Abstract
Purpose To establish a Beagle dog model of dry eye disease (DED). Methods DED models were induced by surgical removal of orbital lacrimal glands and entire resection of third eyelids in the left eyes of six Beagle dogs. Intact right eyes served as self-controls. Non-anaesthetized Schirmer test (STT), tear break-up time (TBUT), and fluorescein staining grading were performed monthly after operation. Interleukin (IL)-1β, IL-8, IL-10, and tumor necrosis factor-α (TNF-α) levels were detected in tears and conjunctiva tissues. Six months after surgery, conjunctiva and cornea were collected and histopathologically analyzed. Results Signs of DED appeared within one month after surgery and then remained stable. STT values were significantly reduced by 88% within 3 weeks after operation and remained stable over months with 1.6 ± 0.4 mm. Mean TBUT decreased significantly within two months after operation and maintained 5.2 ± 1.1 seconds. The mean fluorescein staining score was highest at the first month and then was reduced, eventually reaching a balance with 11.0 ± 1.3 points. Elevated levels of IL-1β, IL-8, IL-10, and TNF-α were detected in tears and conjunctivas of operated eyes. Hematoxylin and eosin staining showed cornea neovascularization in the corneal stroma with thickened stroma layer and disorganized collagen bundles. Periodic acid-Schiff staining revealed a reduced function of conjunctival goblet cells. Conclusions A combined type of DED model on the Beagle dog was established by removal of the orbital lacrimal gland and resection of the third eyelid. This DED model is easily accessible and is stable at six-month observation. Translational Relevance The surgery-induced Beagle dog DED model is easily accessible and stable over a relatively long time.
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Affiliation(s)
- Zhi-zheng Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yan-ping Zou
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Hui Zhu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Wei-zhen Zeng
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
| | - Yi Ding
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jia-zeng Su
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Guang-yan Yu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
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Konda N, Chakrabarti S, Garg P, Willcox MDP. Association of Single-Nucleotide Polymorphisms in Interleukin Genes with Microbial Keratitis in a South Indian Population. Pathogens 2022; 11:1387. [PMID: 36422638 PMCID: PMC9692714 DOI: 10.3390/pathogens11111387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/12/2022] [Accepted: 11/19/2022] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND To examine the relationship between single-nucleotide polymorphisms (SNPs) in interleukin (IL) genes and keratitis and its clinical manifestations. METHODS SNPs in IL1B, IL6, CXCL8, IL10, and IL12B were analysed. Differences in frequencies of alleles, genotypes and haplotypes between cases and controls as well as associations between SNPs and clinical variables were calculated by χ2 tests with odds ratios. RESULTS The minor homologous genotype in IL1B rs16944 (p = 0.036; odds ratio (OR) = 2.063, 95% confidence interval (CI): 1.048-4.061) and CXCL8 rs4073 (p = 0.041; OR = 0.463, 95% CI: 0.224-0.956) and the heterologous genotypes in IL6 rs1800795 (p = 0.046; OR = 0.563, 95% CI: 0.326-0.972) and IL12B rs2569254 (p = 0.0446; OR = 0.557, 95% CI: 0.314-0.989) or rs730691 (p = 0.0051; OR = 0.451, 95% CI: 0.260-0.784) were associated with keratitis. The minor genotype of rs16944 was associated with severe infection (p = 0.046). The heterologous genotype in rs2569254 was associated with hospital admission, photophobia, and mode of contact lens wear (p ≤ 0.041). The heterologous genotype in rs730691 was associated with blurred vision, discharge, anterior chamber reaction, and mode of wear (p ≤ 0.047). CONCLUSIONS This study demonstrates that SNPs in IL1B and CXCL8 are associated with risk of developing keratitis. The study also found relationships between SNPs and clinical measures of keratitis. The potential for ethnic differences in frequency of SNPs and their association with keratitis should be followed up using different populations.
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Affiliation(s)
- Nagaraju Konda
- School of Optometry and Vision Science, University of New South Wales, Sydney 2052, Australia
- Brien Holden Vision Institute, Sydney 2052, Australia
- School of Medical Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Subhabrata Chakrabarti
- Brien Holden Eye Research Centre, L. V. Prasad Eye Institute, Hyderabad 500034, Telangana, India
| | - Prashant Garg
- The Cornea Institute, L. V. Prasad Eye Institute, Hyderabad, Telangana 500034, India
| | - Mark D. P. Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney 2052, Australia
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Di Zazzo A, Rajan M, Dureja R, Antonini M, Kanduri V, Madduri B, Mohan N, Mohamed A, Fernandes M. Pediatric Microbial Keratitis: Identification of Clinical Biomarkers for Prognosis and Outcome of 218 Cases From 2009 to 2019. Cornea 2022; 41:1103-1109. [PMID: 34935663 DOI: 10.1097/ico.0000000000002957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 11/01/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE The aim of this study was to analyze the risk factors, microbiological profile, and treatment efficacy in pediatric microbial keratitis (MK) and to identify clinical biomarkers prognosticating outcome. METHODS A retrospective analysis was conducted from patients younger than 16 years with MK-excluding viral, marginal, or interstitial keratitis. Data pertaining to predisposing factors, symptom duration, prior treatment, ulcer characteristics, microbiological profile, time to resolution, and final outcome were recorded. Statistical analysis was performed. The mixed-effects linear regression model with random intercept was used to evaluate factors affecting time to resolution. RESULTS Among 218 episodes of 215 pediatric patients with MK, the geometric mean of central [median 3 mm, interquartile range (IQR) 1-4.3 mm] and peripheral ulcers (median 1 mm, IQR 1-2.5 mm) was significantly different ( P < 0.0001). Organisms identified were bacteria (56.9%), fungi (31.5%), and acanthamoebae (2.3%). Of 172 cases (78.8%), which resolved in a median resolution time of 22 days (IQR, 11-44 days), 107 (81.6%) with absent/negative microbiology healed on empirical therapy. On multivariate analysis, peripheral ulcers and geometric mean ulcer size affected time to resolution. Significantly higher percentage of eyes, which worsened or perforated, were on topical steroids compared with those which healed (31.8% vs. 9.2%, P = 0.0061). CONCLUSIONS Good outcome even in culture negative cases suggests empirical therapy may be instituted for nonsevere peripheral pediatric MK; however, the importance of a microbiological workup cannot be underscored enough. Ulcer location and geometric mean size of ulcer may be used as clinical prognostic markers for resolution.
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Affiliation(s)
- Antonio Di Zazzo
- Ophthalmology Complex Operative Unit, University Campus Bio-Medico, Rome, Italy
| | - Mugundhan Rajan
- The Cornea Institute, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India
| | - Rohit Dureja
- The Cornea Institute, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India
| | - Marco Antonini
- Ophthalmology Complex Operative Unit, University Campus Bio-Medico, Rome, Italy
| | - Vaibhav Kanduri
- The Cornea Institute, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India
| | - Bhagyasree Madduri
- Ocular Microbiology Department, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India; and
| | - Nitin Mohan
- Ocular Microbiology Department, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India; and
| | - Ashik Mohamed
- Ophthalmic Biophysics, L V Prasad Eye Institute, Hyderabad, India
| | - Merle Fernandes
- The Cornea Institute, L V Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India
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Wang J, Chen Z, Li M, Song Y, Xu W, Wang L, Chen S. Genome-wide identification, immune response profile and functional characterization of IL-10 from spotted knifejaw (Oplegnathus punctatus) during host defense against bacterial and viral infection. FISH & SHELLFISH IMMUNOLOGY 2022; 124:513-524. [PMID: 35472402 DOI: 10.1016/j.fsi.2022.04.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Interleukin 10 (IL-10), a pleiotropic cytokine, plays an essential role in multiple immunity responses. In the current study, the sequences of IL-10 family were identified from spotted knifejaw (Oplegnathus punctatus) whole genome, and O. punctatus IL-10 (OpIL-10) was cloned and characterized. OpIL-10 encodes 187 amino acids with a typical IL-10 family signature motif and predicted α-helices. It shared high identities with Notolabrus celidotus IL-10 and Epinephelus Lanceolatus IL-10. OpIL-10 was widely detected in healthy tissues, with the abundant expression in liver and skin. It was significantly up-regulated in the six immune-related tissues (liver, spleen, kidney, intestine, gill and skin) after infection against Vibrio harveyi and spotted knifejaw iridovirus (SKIV). Dual-luciferase analysis showed that OpIL-10 overexpression could suppress the activity of NF-κB. Meanwhile, OpIL-10 knockdown caused the down-regulation of five immune-related genes in JAK2/STAT3 signaling pathway and NF-κB signaling pathway, including IL-10R2, TYK2, STAT3, NOD2, and IκB. In addition, LPS and poly I:C stimulated expression of pro-inflammatory cytokines, including IL-6, IL-1β, IL-8, and IL-12, were lower with recombinant OpIL-10 (rOp IL-10) than the control group, indicating the anti-inflammatory roles of rOpIL-10. Taken together, these results indicated OpIL-10 as a negative regulator in the inflammatory responses of spotted knifejaw against bacterial and viral infection, which would help us better understand the role of IL-10 in teleost immunity.
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Affiliation(s)
- Jie Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Zhangfan Chen
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, 266071, China; Shandong Key Laboratory of Marine Fisheries Biotechnology and Genetic Breeding, Qingdao, 266071, China.
| | - Ming Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Yu Song
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Wenteng Xu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, 266071, China; Shandong Key Laboratory of Marine Fisheries Biotechnology and Genetic Breeding, Qingdao, 266071, China
| | - Lei Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, 266071, China; Shandong Key Laboratory of Marine Fisheries Biotechnology and Genetic Breeding, Qingdao, 266071, China
| | - Songlin Chen
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, 266071, China; Shandong Key Laboratory of Marine Fisheries Biotechnology and Genetic Breeding, Qingdao, 266071, China.
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11
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Absence of Streptococcus pneumoniae Capsule Increases Bacterial Binding, Persistence, and Inflammation in Corneal Infection. Microorganisms 2022; 10:microorganisms10040710. [PMID: 35456761 PMCID: PMC9025271 DOI: 10.3390/microorganisms10040710] [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: 02/12/2022] [Revised: 03/07/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022] Open
Abstract
The role of the pneumococcal polysaccharide capsule is largely unclear for Streptococcus pneumoniae keratitis, an ocular inflammatory disease that develops as a result of bacterial infection of the cornea. In this study, capsule-deficient strains were compared to isogenic parent strains in their ability to adhere to human corneal epithelial cells. One isogenic pair was further used in topical ocular infection of mice to assess the contribution of the capsule to keratitis. The results showed that non-encapsulated pneumococci were significantly more adherent to cells, persisted in significantly higher numbers on mouse corneas in vivo, and caused significant increases in murine ocular IL9, IL10, IL12-p70, MIG, and MIP-1-gamma compared to encapsulated S. pneumoniae. These findings indicate that the bacterial capsule impedes virulence and the absence of capsule impacts inflammation following corneal infection.
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12
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Zuo Z, Zou Y, Li Q, Guo Y, Zhang T, Wu J, He C, Eko FO. Intranasal immunization with inactivated chlamydial elementary bodies formulated in VCG-chitosan nanoparticles induces robust immunity against intranasal Chlamydia psittaci challenge. Sci Rep 2021; 11:10389. [PMID: 34001988 PMCID: PMC8129140 DOI: 10.1038/s41598-021-89940-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/04/2021] [Indexed: 02/03/2023] Open
Abstract
Vaccines based on live attenuated Chlamydia elementary bodies (EBs) can cause disease in vaccinated animals and the comparably safer inactivated whole EBs are only marginally protective. Recent studies show that a vaccine formulation comprising UV-inactivated EBs (EB) and appropriate mucosal delivery systems and/or adjuvants induced significant protective immunity. We tested the hypothesis that intranasal delivery of UV-inactivated C. psittaci EB formulated in Vibrio cholerae ghosts (VCG)-chitosan nanoparticles will induce protective immunity against intranasal challenge in SPF chickens. We first compared the impact of VCG and CpG adjuvants on protective immunity following IN mucosal and IM systemic delivery of EB formulated in chitosan hydrogel/microspheres. Immunologic analysis revealed that IN immunization in the presence of VCG induced higher levels of IFN-γ response than IM delivery or the CpG adjuvanted groups. Also, vaccine efficacy evaluation showed enhanced pharyngeal bacterial clearance and protection against lung lesions with the VCG adjuvanted vaccine formulation, thereby establishing the superior adjuvanticity of VCG over CpG. We next evaluated the impact of different concentrations of VCG on protective immunity following IN mucosal immunization. Interestingly, the adjuvanticity of VCG was concentration-dependent, since protective immunity induced following IN mucosal immunization showed dose-dependent immune responses and protection. These studies reveal that formulation of inactivated chlamydial antigens with adjuvants, such as VCG and chitosan increases their ability to induce protective immune responses against challenge.
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Affiliation(s)
- Zonghui Zuo
- grid.22935.3f0000 0004 0530 8290Key Lab of Animal Epidemiology and Zoonosis, College of Veterinary Medicine, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Yongjuan Zou
- grid.9227.e0000000119573309Key Laboratory of Biopharmaceutical Production and Formulation Engineering, Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Qiang Li
- grid.22935.3f0000 0004 0530 8290Key Lab of Animal Epidemiology and Zoonosis, College of Veterinary Medicine, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Yongxia Guo
- grid.22935.3f0000 0004 0530 8290Key Lab of Animal Epidemiology and Zoonosis, College of Veterinary Medicine, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Tianyuan Zhang
- grid.22935.3f0000 0004 0530 8290Key Lab of Animal Epidemiology and Zoonosis, College of Veterinary Medicine, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Jie Wu
- grid.9227.e0000000119573309Key Laboratory of Biopharmaceutical Production and Formulation Engineering, Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Cheng He
- grid.22935.3f0000 0004 0530 8290Key Lab of Animal Epidemiology and Zoonosis, College of Veterinary Medicine, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Francis O. Eko
- grid.9001.80000 0001 2228 775XDepartment of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310 USA
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13
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Xu S, Zhang J, Liu J, Ye J, Xu Y, Wang Z, Yu J, Ye D, Zhao M, Feng Y, Pan W, Wang M, Wan J. The role of interleukin-10 family members in cardiovascular diseases. Int Immunopharmacol 2021; 94:107475. [PMID: 33662690 DOI: 10.1016/j.intimp.2021.107475] [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] [Received: 11/30/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 12/15/2022]
Abstract
Interleukin (IL)-10 cytokine family members, including IL-10, IL-19, IL-20, IL-22, IL-24, IL-26 and the distantly related IL-28A, IL-28B, and IL-29, play critical roles in the regulation of inflammation. The occurrence and progression of cardiovascular diseases closely correlate with the regulation of inflammation, which may provide novel strategies for the treatment of cardiovascular diseases. In recent years, studies have focused on the association between the IL-10 cytokine family and the physiological and pathological progression of cardiovascular diseases. The aim of this review is to summarize relevant studies and clarify whether the IL-10 cytokine family contributes to the regulation of cardiovascular diseases.
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Affiliation(s)
- Shuwan Xu
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zhen Wang
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Junping Yu
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Di Ye
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Mengmeng Zhao
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yongqi Feng
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Pan
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
| | - Jun Wan
- The First Clinical College of Wuhan University, Wuhan, China; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
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14
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Peptidogalactomannan from Histoplasma capsulatum yeast cell wall: role of the chemical structure in recognition and activation by peritoneal macrophages. Braz J Microbiol 2021; 52:479-489. [PMID: 33611739 DOI: 10.1007/s42770-021-00447-w] [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: 08/31/2020] [Accepted: 02/03/2021] [Indexed: 10/22/2022] Open
Abstract
Histoplasma capsulatum is the causative agent of histoplasmosis, a systemic disease responsible for most reported causes of morbidity and mortality among immunosuppressed individuals. Peptidogalactomannan (pGM) was purified from the yeast cell wall of H. capsulatum isolated from bats, and its structure and involvement in modulating the host immune response were evaluated. Gas chromatography, methylation analysis, and two-dimensional nuclear magnetic resonance (2D-NMR) were used for the structural characterization of pGM. Methylation and 2D-NMR data revealed that pGM comprises a main chain containing α-D-Manp (1 → 6) residues substituted at O-2 by α-D-Manp (1 → 2)-linked side chains, non-reducing end units of α-D-Galf, or β-D-Galp linked (1→ 6) to α-D-Manp side chains. The involvement of H. capsulatum pGM in antigenic reactivity and in interactions with macrophages was demonstrated by ELISA and phagocytosis assay, respectively. The importance of the carbohydrate and protein moieties of pGM in sera reactivity was evaluated. Periodate oxidation abolished much pGM antigenic reactivity, suggesting that the sugar moiety is the most immunogenic part of pGM. Reactivity slightly decreased in pGM treated with proteinase K, suggesting that the peptide moiety plays a minor role in pGM antigenicity. In vitro experiments suggested that pGM is involved in the phagocytosis of H. capsulatum yeast and induction of IL-10 and IFN-γ secretion by peritoneal macrophages from C57BL/6 mice. These findings demonstrated the role of pGM in the H. capsulatum-host interaction.
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15
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Cheng X, Aabdin ZU, Wang Y, Ma N, Dai H, Shi X, Shen X. Glutamine pretreatment protects bovine mammary epithelial cells from inflammation and oxidative stress induced by γ-d-glutamyl-meso-diaminopimelic acid (iE-DAP). J Dairy Sci 2020; 104:2123-2139. [PMID: 33358155 DOI: 10.3168/jds.2020-18402] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
Glutamine (GLN) has many types of biological activity in rats, including anti-inflammatory, antioxidative stress, and anti-apoptosis effects. However, little is known about the effects of GLN on bovine mammary epithelial cells (BMEC). γ-d-Glutamyl-meso-diaminopimelic acid (iE-DAP) is a cell wall peptidoglycan component of gram-negative bacteria that can be recognized by the intracellular receptor nucleotide-binding oligomerization domain-containing protein 1 (NOD1) and can cause bovine mastitis. The goal of the present study was to investigate whether GLN protects BMEC from iE-DAP-induced inflammation, oxidative stress, and apoptosis. We cultured BMEC in a GLN-free medium for 24 h and then separated them into 4 groups: cells treated with 1× PBS for 26 or 32 h (control); cells stimulated by 10 μg/mL iE-DAP for 2 or 8 h (2- or 8-h iE-DAP); cells pretreated with 8 or 4 mM GLN for 24 h followed by 2 or 8 h of 1× PBS treatment (8 or 4 mM GLN); and cells pretreated with 8 or 4 mM GLN for 24 h followed by 2 or 8 h of iE-DAP treatment (DG). In the 2-h iE-DAP group, when levels of inflammation peaked, iE-DAP treatment increased both the mRNA and protein expression of NOD1, inhibitor of nuclear factor-κB (NFKBIA, IκB), and nuclear factor-κB subunit p65 (RELA, NF-κB p65), as well as the mRNA expression of IL6 and IL8 and levels of IL-6 and tumor necrosis factor-α in cell culture supernatants. In contrast, 8 mM GLN pretreatment inhibited the mRNA and protein expression of inflammatory-related factors by suppressing the NOD1/NF-κB pathway. In the 8-h iE-DAP group, iE-DAP treatment decreased the mRNA and protein expression of extracellular regulated kinase (Erk, ERK) and nuclear factor erythroid 2-associated factor2 (NFE2L2, Nrf2), as well as the mRNA expression of superoxide dismutase 1 (SOD1), catalase (CAT), coenzyme II oxidoreductase 1 (NQO1), and heme oxygenase 1 (HMOX1, HO1). In addition, iE-DAP treatment increased the expression of malondialdehyde in BMEC when oxidative stress levels peaked. Interestingly, 4 mM GLN pretreatment induced the mRNA and protein expression of antioxidative stress-related factors and inhibited the expression of reactive oxygen species in BMEC by promoting the ERK/Nrf2 pathway. Moreover, GLN reduced apoptosis caused by inflammation and oxidative stress in BMEC. This is the first report showing that GLN protects against iE-DAP-induced inflammation and oxidative stress via the NOD1/NF-κB and ERK/Nrf2 pathways in BMEC.
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Affiliation(s)
- Xiaoye Cheng
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Zain-Ui Aabdin
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Yan Wang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Nana Ma
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongyu Dai
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoli Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiangzhen Shen
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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16
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Zhao Y, Yang Z, Fang C, Xiao D, Shi Y, Lin Y, Zhai Q. A single-center observational study on the expression of circulating interleukin-20 levels and predicting outcomes in human chronic heart failure: A 2-year follow-up cohort study. Clin Chim Acta 2020; 510:5-10. [DOI: 10.1016/j.cca.2020.06.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 01/24/2023]
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17
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Duncan SA, Sahu R, Dixit S, Singh SR, Dennis VA. Suppressors of Cytokine Signaling (SOCS)1 and SOCS3 Proteins Are Mediators of Interleukin-10 Modulation of Inflammatory Responses Induced by Chlamydia muridarum and Its Major Outer Membrane Protein (MOMP) in Mouse J774 Macrophages. Mediators Inflamm 2020; 2020:7461742. [PMID: 32684836 PMCID: PMC7333066 DOI: 10.1155/2020/7461742] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 04/10/2020] [Indexed: 12/26/2022] Open
Abstract
The immunopathology of chlamydial diseases is exacerbated by a broad-spectrum of inflammatory mediators, which we reported are inhibited by IL-10 in macrophages. However, the chlamydial protein moiety that induces the inflammatory mediators and the mechanisms by which IL-10 inhibits them are unknown. We hypothesized that Chlamydia major outer membrane protein (MOMP) mediates its disease pathogenesis, and the suppressor of cytokine signaling (SOCS)1 and SOCS3 proteins are mediators of the IL-10 inhibitory actions. Our hypothesis was tested by exposing mouse J774 macrophages to chlamydial stimulants (live Chlamydia muridarum and MOMP) with and without IL-10. MOMP significantly induced several inflammatory mediators (IL-6, IL-12p40, CCL5, CXCL10), which were dose-dependently inhibited by IL-10. Chlamydial stimulants induced the mRNA gene transcripts and protein expression of SOCS1 and SOCS3, with more SOCS3 expression. Notably, IL-10 reciprocally regulated their expression by reducing SOCS1 and increasing SOCS3. Specific inhibitions of MAPK pathways revealed that p38, JNK, and MEK1/2 are required for inducing inflammatory mediators as well as SOCS1 and SOCS3. Chlamydial stimulants triggered an M1 pro-inflammatory phenotype evidently by an enhanced nos2 (M1 marker) expression, which was skewed by IL-10 towards a more M2 anti-inflammatory phenotype by the increased expression of mrc1 and arg1 (M2 markers) and the reduced SOCS1/SOCS3 ratios. Neutralization of endogenously produced IL-10 augmented the secretion of inflammatory mediators, reduced SOCS3 expression, and skewed the chlamydial M1 to an M2 phenotype. Inhibition of proteasome degradation increased TNF but decreased IL-10, CCL5, and CXCL10 secretion by suppressing SOCS1 and SOCS3 expressions and dysregulating their STAT1 and STAT3 transcription factors. Our data show that SOCS1 and SOCS3 are regulators of IL-10 inhibitory actions, and underscore SOCS proteins as therapeutic targets for IL-10 control of inflammation for Chlamydia and other bacterial inflammatory diseases.
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Affiliation(s)
- Skyla A. Duncan
- Center for NanoBiotechnology Research (CNBR), Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104, USA
| | - Rajnish Sahu
- Center for NanoBiotechnology Research (CNBR), Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104, USA
| | - Saurabh Dixit
- Center for NanoBiotechnology Research (CNBR), Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104, USA
| | - Shree R. Singh
- Center for NanoBiotechnology Research (CNBR), Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104, USA
| | - Vida A. Dennis
- Center for NanoBiotechnology Research (CNBR), Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104, USA
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18
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Wang L, Wang R, Xu C, Zhou H. Pathogenesis of Herpes Stromal Keratitis: Immune Inflammatory Response Mediated by Inflammatory Regulators. Front Immunol 2020; 11:766. [PMID: 32477330 PMCID: PMC7237736 DOI: 10.3389/fimmu.2020.00766] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/06/2020] [Indexed: 12/19/2022] Open
Abstract
Herpes stromal keratitis (HSK) is one of the primary diseases that cause vision loss or even blindness after herpes simplex virus (HSV)-1 infection. HSK-associated vision impairment is predominantly due to corneal scarring and neovascularization caused by inflammation. In the infected cornea, HSV can activate innate and adaptive immune responses of host cells, which triggers a cascade of reactions that leads to the release of inflammatory cytokines, chemokines, microRNA, and other regulatory factors that have stimulating or inhibitory effects on tissue. Physiologically, host cells show homeostasis. In this review, we summarize the factors involved in HSK pathogenesis from the perspective of immunity, molecules, and pathological angiogenesis. We also describe in detail the pathogenesis of chronic inflammatory lesions of the corneal stroma in response to HSV-1 infection.
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Affiliation(s)
- Li Wang
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, China.,Department of Ophthalmology, Jilin City Central Hospital, Jilin, China
| | - Runbiao Wang
- Department of Ophthalmology, Jilin City Central Hospital, Jilin, China
| | - Chuyang Xu
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hongyan Zhou
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, China
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Qi L, Zhang J, Wu K, Shi S, Ji Q, Miao H, Que B. IL-19 as a Biomarker for the Severity of Acute Myocardial Infarction. Arch Med Res 2020; 51:160-166. [PMID: 32111500 DOI: 10.1016/j.arcmed.2020.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/06/2019] [Accepted: 01/20/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Interleukin-19 (IL-19) has been shown to be involved in coronary artery diseases and atherosclerosis, while its expression in myocardial infarction is poorly understood. In this study, the dynamic increase in circulating IL-19 in acute ST-segment elevation myocardial infarction (STEMI) patients was detected. METHOD Both plasma IL-19 levels and IL-19 mRNA expression in peripheral blood mononuclear cells (PBMCs) from STEMI patients and chest pain syndrome (CPS) patients were detected at different time points, including 1 d, 3 d, 7 d and 14 d after treatment and on admission. RESULTS Compared with the CPS patients, IL-19 levels and IL-19 gene expression were significantly increased in STEMI patients and peaked at 1 d. From 1-14 d, refocusing treatment, including emergency percutaneous coronary intervention (PCI) and thrombolysis, markedly reduced IL-19 expression and promoted its recovery; of the treatments, the effect of emergency PCI was most significant. In addition, similar trends were also observed with cTnI, NT-proBNP and C-reactive protein (CRP) levels. Furthermore, correlation analysis showed that IL-19 levels were positively correlated with cTnI, NT-proBNP, CRP levels and left ventricular ejection fraction (LVEF) in STEMI patients. CONCLUSIONS IL-19 is correlated with the severity of acute myocardial infarction, which may be a new idea for the clinical treatment of myocardial infarction.
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Affiliation(s)
- Liping Qi
- Department of Cardiology, The Second Clinical Center, Chinese PLA General Hospital, Beijing, China
| | - Jianwei Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Kui Wu
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, and Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Shutian Shi
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, and Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Qingwei Ji
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, and Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Huangtai Miao
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, and Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Bin Que
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, and Beijing Lab for Cardiovascular Precision Medicine, Beijing, China.
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20
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Ávila-Blanco ME, Martín-Pérez T, Ventura-Juárez J, Pérez-Serrano J. Experimental keratitis in rats caused by Acanthamoeba griffini: A kinetic histopathological study. Parasite Immunol 2020; 42:e12692. [PMID: 31856305 DOI: 10.1111/pim.12692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 01/22/2023]
Abstract
The aim of this study was to evaluate the inflammation process that resulted from the inoculation of Wistar Rats with Acanthamoeba griffini, a virulent T3 Acanthamoeba genotype that produces keratitis. Haematoxylin and eosin, periodic acid stain, immunohistochemistry and morphometry were used to analyse tissues from rats of an Acanthamoeba keratitis (AK) model. Two weeks after inoculating the rats with A griffini trophozoites, the thickness of the stroma had diminished, followed by an increase in thickness at 4 weeks. At the latter time, an abundance of inflammatory infiltrate cells was observed, some found to express IL-1β, IL-10 and/or caspase 3. Intercellular adhesion molecule-1 was expressed in corneal blood vessels amid the abundant vascularization characteristic of the development of AK. Through an immunohistochemical technique, trophozoites were detected at 2 and 4 weeks post-inoculation. By 8 weeks, there were a low number of trophozoites and cysts and the corneas of infected rats were similar in thickness to those of the controls. Thus, the rats were capable of healing experimental AK in the present rat model. Diverse immunological mechanisms regulated the inflammatory process in acute AK induced by A griffini in a murine model.
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Affiliation(s)
- Manuel Enrique Ávila-Blanco
- Departamento de Morfología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico.,Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico.,Departamento de Biomedicina y Biotecnología, Laboratorio de Parasitología, Grupo ECOMYP, Facultad de Farmacia, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Tania Martín-Pérez
- Departamento de Biomedicina y Biotecnología, Laboratorio de Parasitología, Grupo ECOMYP, Facultad de Farmacia, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Javier Ventura-Juárez
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico
| | - Jorge Pérez-Serrano
- Departamento de Biomedicina y Biotecnología, Laboratorio de Parasitología, Grupo ECOMYP, Facultad de Farmacia, Universidad de Alcalá, Alcalá de Henares, Spain
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21
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Maresin1 regulates neutrophil recruitment and IL-10 expression in Aspergillus fumigatus keratitis. Int Immunopharmacol 2019; 69:103-108. [DOI: 10.1016/j.intimp.2019.01.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/19/2018] [Accepted: 01/22/2019] [Indexed: 12/31/2022]
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22
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Muraleedharan CK, McClellan SA, Ekanayaka SA, Francis R, Zmejkoski A, Hazlett LD, Xu S. The miR-183/96/182 Cluster Regulates Macrophage Functions in Response to Pseudomonas aeruginosa. J Innate Immun 2019; 11:347-358. [PMID: 30625496 DOI: 10.1159/000495472] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 11/01/2018] [Indexed: 12/13/2022] Open
Abstract
Macrophages (Mϕ) are an important component of the innate immune system; they play critical roles in the first line of defense to pathogen invasion and modulate adaptive immunity. MicroRNAs (miRNAs) are a newly recognized, important level of gene expression regulation. However, their roles in the regulation of Mϕ and the immune system are still not fully understood. In this report, we provide evidence that the conserved miR-183/96/182 cluster (miR-183/96/182) modulates Mϕ function in their production of reactive nitrogen (RNS) and oxygen species (ROS) and their inflammatory response to Pseudomonas aeruginosa (PA) infection and/or lipopolysaccharide (LPS) treatment. We show that knockdown of miR-183/96/182 results in decreased production of multiple proinflammatory cytokines in response to PA or LPS treatment in Mϕ-like Raw264.7 cells. Consistently, peritoneal Mϕ from miR-183/96/182-knockout versus wild-type mice are less responsive to PA or LPS, although their basal levels of proinflammatory cytokines are increased. In addition, overexpression of miR-183/96/182 results in decreased production of nitrite and ROS in Raw264.7 cells. We also provide evidence that DAP12 and Nox2 are downstream target genes of miR-183/96/182. These data suggest that miR-183/96/182 imposes global regulation on various aspects of Mϕ function through different downstream target genes.
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Affiliation(s)
- Chithra K Muraleedharan
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Sharon A McClellan
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Sandamali A Ekanayaka
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Rebecca Francis
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Alex Zmejkoski
- Irvin D. Reed Honors College, Wayne State University, Detroit, Michigan, USA
| | - Linda D Hazlett
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Shunbin Xu
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan, USA,
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23
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Vicente A, Byström B, Pedrosa Domellöf F. Altered Signaling Pathways in Aniridia-Related Keratopathy. ACTA ACUST UNITED AC 2018; 59:5531-5541. [DOI: 10.1167/iovs.18-25175] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- André Vicente
- Department of Clinical Science, Ophthalmology, Umeå University, Umeå, Sweden
| | - Berit Byström
- Department of Clinical Science, Ophthalmology, Umeå University, Umeå, Sweden
| | - Fátima Pedrosa Domellöf
- Department of Clinical Science, Ophthalmology, Umeå University, Umeå, Sweden
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden
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24
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Zeng T, Shi L, Ji Q, Shi Y, Huang Y, Liu Y, Gan J, Yuan J, Lu Z, Xue Y, Hu H, Liu L, Lin Y. Cytokines in aortic dissection. Clin Chim Acta 2018; 486:177-182. [PMID: 30086263 DOI: 10.1016/j.cca.2018.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 02/06/2023]
Abstract
Aortic dissection (AD) is one of the most dangerous forms of vascular disease, characterized by endometrial rupture and intramural hematoma formation. Generally, the pathological process is complicated and closely related to the infiltration of inflammatory cells into the aortic wall and apoptosis of vascular smooth muscle cells. Currently, multiple cytokines, including interleukins, interferon, the tumor necrosis factor superfamily, colony stimulating factor, chemotactic factor, growth factor and so on, have all been demonstrated to play a critical role in AD. Additionally, studies of the link between cytokines and AD could deepen our understanding of the disease and may guide future treatment therapies; therefore, this review focuses on the role of cytokines in AD.
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Affiliation(s)
- Tao Zeng
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Lei Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qingwei Ji
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China; Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing 100029, China
| | - Ying Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Ying Huang
- Department of Ultrasound, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - Yu Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jianting Gan
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jun Yuan
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Zhengde Lu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Yan Xue
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Haiying Hu
- Department of Cardiology, Handan First Hospital, Handan 056002, China
| | - Ling Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
| | - Yingzhong Lin
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
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25
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Che CY, Yuan KL, Zhao GQ, Li C, Lin J, Zhu GQ, Liu M. Regulation of lipoxygenase-1 and Dectin-1 on interleukin-10 in mouse Aspergillus fumigatus keratitis. Int J Ophthalmol 2018; 11:905-909. [PMID: 29977799 DOI: 10.18240/ijo.2018.06.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 02/28/2018] [Indexed: 01/24/2023] Open
Abstract
AIM To investigate the regulation of lipoxygenase (LOX)-1 and Dectin-1 on interleukin-10 (IL-10) production in mice with Aspergillus fumigatus (A. fumigatus) keratitis. METHODS The corneas of C57BL/6 mice were pretreated with LOX-1 inhibitor Poly(I) or Dectin-1 siRNA separately before the infection of A. fumigatus. Polymerase chain reaction (PCR) and Western blot were used to detect the expression of IL-10. RESULTS The mRNA and protein expressions of IL-10 were significantly increased in mice with A. fumigatus keratitis. Compared with the group pretreated with sterile water before infection, Poly(I) pretreatment suppressed IL-10 expression significantly. Compared with the group pretreated with scrambled siRNA before infection, Dectin-1 siRNA pretreatment significantly reduced IL-10 expression in response to A. fumigatus infection. CONCLUSION LOX-1 and Dectin-1 regulate IL-10 production in mouse A. fumigatus keratitis.
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Affiliation(s)
- Cheng-Ye Che
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Ke-Lan Yuan
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Gui-Qiu Zhao
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Cui Li
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Jing Lin
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Guo-Qiang Zhu
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Min Liu
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
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26
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Li Y, Gao X, Wang J. Human adipose-derived mesenchymal stem cell-conditioned media suppresses inflammatory bone loss in a lipopolysaccharide-induced murine model. Exp Ther Med 2017; 15:1839-1846. [PMID: 29434773 PMCID: PMC5776640 DOI: 10.3892/etm.2017.5606] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 09/29/2017] [Indexed: 12/21/2022] Open
Abstract
Conditioned media (CM) from mesenchymal stem cells (MSCs) contains various cytokines, growth factors and microRNAs, which may serve important roles in modulating the inflammatory process. However, the effect of MSC-CM on inflammatory bone loss remains unknown. The present study investigated the effects of conditioned media from human adipose-derived mesenchymal stem cells (AMSC-CM) on the prevention of lipopolysaccharide (LPS)-mediated bone loss in mice. To investigate the underlying mechanisms of this effect, the effects of AMSC-CM on serum levels of inflammation-associated cytokines [tumor necrosis factor (TNF)-α, interleukin (IL)-1, IL-6 and IL-10] in LPS-treated mice, in addition to their mRNA expression in LPS-treated macrophages, was investigated. Micro-computed tomography and histological analysis revealed that AMSC-CM administration effectively inhibited LPS-induced bone destruction in vivo. ELISA analysis indicated that AMSC-CM significantly reduced the serum levels of proinflammatory cytokines (TNF-α, IL-1 and IL-6) in LPS-treated mice. Furthermore, AMSC-CM treatment significantly decreased the mRNA expression levels of TNF-α, IL-1 and IL-6 in macrophages treated with LPS. These findings indicate that AMSC-CM inhibits LPS-induced bone loss by decreasing the production of proinflammatory cytokines, suggesting that the use of AMSC-CM may be a potential therapeutic strategy for the treatment of inflammatory bone loss.
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Affiliation(s)
- Yu Li
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Xin Gao
- Department of Oral Implantology, Shanghai Stomatological Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Jinbing Wang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, P.R. China
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27
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Mingomataj EÇ, Bakiri AH. Regulator Versus Effector Paradigm: Interleukin-10 as Indicator of the Switching Response. Clin Rev Allergy Immunol 2016; 50:97-113. [PMID: 26450621 DOI: 10.1007/s12016-015-8514-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The interleukin-10 (IL-10) is generally considered as the most important cytokine with anti-inflammatory properties and one of the key cytokines preventing inflammation-mediated tissue damage. In this respect, IL-10 producing cells play a crucial role in the outcome of infections, allergy, autoimmune reactions, tumor development, and transplant tolerance. Based on recent findings with regard to the mentioned clinical conditions, this review attempts to shed some light on the IL-10 functions, considering this cytokine as inherent inducer of the switching immunity. While acute infections and vaccinations are associated by IL-10 enhanced during few weeks, chronic parasitoses, tumor diseases, allergen-specific immunotherapy, transplants, and use of immune-suppressor drugs show an increased IL-10 level along months or years. With regard to autoimmune pathologies, the IL-10 increase is prevalently observed during early stages, whereas the successive stages are characterized by reaching of immune equilibrium independently to disease's activity. Together, these findings indicate that IL-10 is mainly produced during transient immune conditions and the persistent IL-10-related effect is the indication/prediction (and maybe effectuation) of the switching immunity. Actual knowledge emphasizes that any manipulation of the IL-10 response for treatment purposes should be considered very cautiously due to its potential hazards to the immune system. Probably, the IL-10 as potential switcher of immunity response should be used in association with co-stimulatory immune effectors that are necessary to determine the appropriate deviation during treatment of respective pathologies. Hopefully, further findings would open new avenues to study the biology of this "master switch" cytokine and its therapeutic potential.
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Affiliation(s)
- Ervin Ç Mingomataj
- Department of Allergy & Clinical Immunology, "Mother Theresa" School of Medicine, Tirana, Albania. .,Faculty of Technical Medical Sciences, Department of Preclinical Disciplines, University of Medicine, Tirana, Albania.
| | - Alketa H Bakiri
- Hygeia Hospital Tirana, Outpatients Service, Allergology Consulting Room, Tirana, Albania.,Faculty of Medical Sciences, Department of Preclinical Disciplines, Albanian University, Tirana, Albania
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28
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Mesenchymal Stem Cells and Myeloid Derived Suppressor Cells: Common Traits in Immune Regulation. J Immunol Res 2016; 2016:7121580. [PMID: 27529074 PMCID: PMC4978836 DOI: 10.1155/2016/7121580] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 05/08/2016] [Indexed: 02/08/2023] Open
Abstract
To protect host against immune-mediated damage, immune responses are tightly regulated. The regulation of immune responses is mediated by various populations of mature immune cells, such as T regulatory cells and B regulatory cells, but also by immature cells of different origins. In this review, we discuss regulatory properties and mechanisms whereby two distinct populations of immature cells, mesenchymal stem cells, and myeloid derived suppressor cells mediate immune regulation, focusing on their similarities, discrepancies, and potential clinical applications.
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29
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Ma YF, Ren Y, Wu CJ, Zhao XH, Xu H, Wu DZ, Xu J, Zhang XL, Ji Y. Interleukin (IL)-24 transforms the tumor microenvironment and induces anticancer immunity in a murine model of colon cancer. Mol Immunol 2016; 75:11-20. [DOI: 10.1016/j.molimm.2016.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/11/2016] [Accepted: 05/09/2016] [Indexed: 02/07/2023]
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30
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Effects of Quorum Sensing Systems on Regulatory T Cells in Catheter-Related Pseudomonas aeruginosa Biofilm Infection Rat Models. Mediators Inflamm 2016; 2016:4012912. [PMID: 27069314 PMCID: PMC4812362 DOI: 10.1155/2016/4012912] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/23/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Quorum sensing (QS) systems play an important role in modulating biofilm formation. Recent studies have found that the QS molecules had complex effects on the host immune systems. In addition, regulatory T cells (Tregs), known as important negative regulators in the immune system, have been found upregulated in multiple chronic infections. Therefore, the QS systems were hypothesized to be involved in modulating Tregs in biofilm-associated infections. Object. To explore the effects of QS systems on Tregs in catheter-related Pseudomonas aeruginosa biofilm infection rat models. METHOD Catheter-related Pseudomonas aeruginosa biofilm infection rat models were established; the bacterial clearance rates, total cell counts in bronchoalveolar lavage (BAL) fluid, pathological changes of lungs, and the levels of Foxp3, TGF-β1, and IL-10 in PAO1 strain group were examined and compared with the QS-mutant ΔlasRΔrhlR and ΔlasIΔrhlI groups. RESULTS In PAO1 group, the bacterial clearance rates were lower, total cell counts were higher, pathological changes were severer, and the levels of Foxp3, TGF-β1, and IL-10 were significantly higher compared with QS-mutant groups (p < 0.05). No significant difference was observed between the two QS-mutant groups (p > 0.05). CONCLUSION QS systems can trigger host immune system, accompanied with the upregulation of Tregs.
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31
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Huus KE, Joseph J, Zhang L, Wong A, Aaron SD, Mah TF, Sad S. Clinical Isolates of Pseudomonas aeruginosa from Chronically Infected Cystic Fibrosis Patients Fail To Activate the Inflammasome during Both Stable Infection and Pulmonary Exacerbation. THE JOURNAL OF IMMUNOLOGY 2016; 196:3097-108. [PMID: 26895832 DOI: 10.4049/jimmunol.1501642] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 01/20/2016] [Indexed: 12/13/2022]
Abstract
Immune recognition of pathogen-associated ligands leads to assembly and activation of inflammasomes, resulting in the secretion of inflammatory cytokines IL-1β and IL-18 and an inflammatory cell death called pyroptosis. Inflammasomes are important for protection against many pathogens, but their role during chronic infectious disease is poorly understood. Pseudomonas aeruginosa is an opportunistic pathogen that persists in the lungs of cystic fibrosis (CF) patients and may be responsible for the repeated episodes of pulmonary exacerbation characteristic of CF. P. aeruginosa is capable of inducing potent inflammasome activation during acute infection. We hypothesized that to persist within the host during chronic infection, P. aeruginosa must evade inflammasome activation, and pulmonary exacerbations may be the result of restoration of inflammasome activation. We therefore isolated P. aeruginosa from chronically infected CF patients during stable infection and exacerbation and evaluated the impact of these isolates on inflammasome activation in macrophages and neutrophils. P. aeruginosa isolates from CF patients failed to induce inflammasome activation, as measured by the secretion of IL-1β and IL-18 and by pyroptotic cell death, during both stable infection and exacerbation. Inflammasome evasion likely was due to reduced expression of inflammasome ligands and reduced motility and was not observed in environmental isolates or isolates from acute, non-CF infection. These results reveal a novel mechanism of pathogen adaptation by P. aeruginosa to avoid detection by inflammasomes in CF patients and indicate that P. aeruginosa-activated inflammasomes are not involved in CF pulmonary exacerbations.
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Affiliation(s)
- Kelsey E Huus
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada; Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Julie Joseph
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Li Zhang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Alex Wong
- Department of Biology, Faculty of Science, Carleton University, Ottawa, Ontario K1N 6N5, Canada; and
| | - Shawn D Aaron
- Ottawa Hospital Research Institute, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Subash Sad
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada;
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32
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Abstract
Importance of chronic fibroproliferative diseases (FDs) including pulmonary fibrosis, chronic kidney diseases, inflammatory bowel disease, and cardiovascular or liver fibrosis is rapidly increasing and they have become a major public health problem. According to some estimates about 45% of all deaths are attributed to FDs in the developed world. Independently of their etiology the common hallmark of FDs is chronic inflammation. Infiltrating immune cells, endothelial, epithelial, and other resident cells of the injured organ release an orchestra of inflammatory mediators, which stimulate the proliferation and excessive extracellular matrix (ECM) production of myofibroblasts, the effector cells of organ fibrosis. Abnormal amount of ECM disturbs the original organ architecture leading to the decline of function. Although our knowledge is rapidly expanding, we still have neither a diagnostic tool to detect nor a drug to specifically target fibrosis. Therefore, there is an urgent need for the more comprehensive understanding of the pathomechanism of fibrosis and development of novel diagnostic and therapeutic strategies. In the present review we provide an overview of the common key mediators of organ fibrosis highlighting the role of interleukin-10 (IL-10) cytokine family members (IL-10, IL-19, IL-20, IL-22, IL-24, and IL-26), which recently came into focus as tissue remodeling-related inflammatory cytokines.
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33
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Zaidi T, Zaidi T, Cywes-Bentley C, Lu R, Priebe GP, Pier GB. Microbiota-driven immune cellular maturation is essential for antibody-mediated adaptive immunity to Staphylococcus aureus infection in the eye. Infect Immun 2014; 82:3483-91. [PMID: 24914214 PMCID: PMC4136232 DOI: 10.1128/iai.01951-14] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 05/29/2014] [Indexed: 11/20/2022] Open
Abstract
As an immune-privileged site, the eye, and particularly the outer corneal surface, lacks resident mature immune effector cells. Physical barriers and innate mediators are the best-described effectors of immunity in the cornea. When the barriers are breached, infection can result in rapid tissue destruction, leading to loss of visual acuity and frank blindness. To determine the cellular and molecular components needed for effective adaptive immunity on the corneal surface, we investigated which immune system effectors were required for protection against Staphylococcus aureus corneal infections in mice, which are a serious cause of human eye infections. Both systemically injected and topically applied antibodies to the conserved cell surface polysaccharide poly-N-acetylglucosamine (PNAG) were effective at mediating reductions in corneal pathology and bacterial levels. Additional host factors impacting protection included intercellular adhesion molecule 1 (ICAM-1)-dependent polymorphonuclear leukocyte (PMN) recruitment, functional CD4(+) T cells, signaling via the interleukin-17 (IL-17) receptor, and IL-22 production. In germfree mice, there was no protective efficacy of antibody to PNAG due to the lack of LY6G(+) inflammatory cell coeffector recruitment to the cornea. Protection was manifest after 3 weeks of exposure to conventional mice and acquisition of a resident microbiota. We conclude that in the anterior eye, ICAM-1-mediated PMN recruitment to the infected cornea along with endogenous microbiota-matured CD4(+) T cells producing both IL-17 and IL-22 is required for antibody to PNAG to protect against S. aureus infection.
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Affiliation(s)
- Tanweer Zaidi
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Tauqeer Zaidi
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Colette Cywes-Bentley
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Roger Lu
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gregory P Priebe
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Divisions of Critical Care Medicine (Department of Anesthesiology, Perioperative and Pain Medicine) and Infectious Diseases (Department of Medicine), Boston Children's Hospital, Boston, Massachusetts, USA
| | - Gerald B Pier
- Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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