1
|
Anoy MMI, Kim WJ, Gelston S, Fleming D, Patel R, Beyenal H. Evaluation of treatment of methicillin-resistant Staphylococcus aureus biofilms with intermittent electrochemically generated H 2O 2 or HOCl. Antimicrob Agents Chemother 2024; 68:e0172223. [PMID: 38771032 PMCID: PMC11232386 DOI: 10.1128/aac.01722-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/16/2024] [Indexed: 05/22/2024] Open
Abstract
Chronic wound infections can be difficult to treat and may lead to impaired healing and worsened patient outcomes. Novel treatment strategies are needed. This study evaluated the effects of intermittently produced hydrogen peroxide (H2O2) and hypochlorous acid (HOCl), generated via an electrochemical bandage (e-bandage), against methicillin-resistant Staphylococcus aureus biofilms in an agar membrane biofilm model. By changing the working electrode potential, the e-bandage generated either HOCl (1.5 VAg/AgCl) or H2O2 (-0.6 VAg/AgCl). The degree of biocidal activity of intermittent treatment with HOCl and H2O2 correlated with HOCl treatment time; HOCl treatment durations of 0, 1.5, 3, 4.5, and 6 hours (with the rest of the 6-hour total treatment time devoted to H2O2 generation) resulted in mean biofilm reductions of 1.36 ± 0.2, 2.22 ± 0.16, 3.46 ± 0.38, 4.63 ± 0.74, and 7.66 ± 0.5 log CFU/cm2, respectively, vs. non-polarized controls, respectively. However, application of H2O2 immediately after HOCl treatment was detrimental to biofilm removal. For example, 3 hours HOCl treatment followed by 3 hours H2O2 resulted in a 1.90 ± 0.84 log CFU/cm2 lower mean biofilm reduction than 3 hours HOCl treatment followed by 3 hours non-polarization. HOCl generated over 3 hours exhibited biocidal activity for at least 7.5 hours after e-bandage operation ceased; 3 hours of HOCl generation followed by 7.5 hours of non-polarization resulted in a biofilm cell reduction of 7.92 ± 0.12 log CFU/cm2 vs. non-polarized controls. Finally, intermittent treatment with HOCl (i.e., interspersed with periods of e-bandage non-polarization) for various intervals showed similar effects (approximately 6 log CFU/cm2 reduction vs. non-polarized control) to continuous treatment with HOCl for 3 hours, followed by 3 hours of non-polarization. These findings suggest that timing and sequencing of HOCl and H2O2 treatments are crucial for maximizing biofilm control when using an e-bandage strategy.
Collapse
Affiliation(s)
- Md Monzurul Islam Anoy
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
| | - Won-Jun Kim
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
| | - Suzanne Gelston
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
| | - Derek Fleming
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Robin Patel
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Haluk Beyenal
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
| |
Collapse
|
2
|
Tuerhong K, Liu K, Shen D, Zhang Q, Huang Q, Yang M, Huang Z, Wang L, Yang S, Li Y. Integrating network pharmacology and experimental evaluation to explore the complementary therapeutic effect and mechanism of melatonin in periodontitis. Heliyon 2024; 10:e32494. [PMID: 38948030 PMCID: PMC11209020 DOI: 10.1016/j.heliyon.2024.e32494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024] Open
Abstract
Objective To explore the potential targets for melatonin in the treatment of periodontitis through network pharmacologic analysis and experimental validation via in vivo animal models and in vitro cellular experiments. Materials and methods In this study, we first screened melatonin targets from Pharm Mapper for putative targets, Drug Bank, and TCMSP databases for known targets. Then, disease database was searched and screened for differential expressed genes associated with periodontitis. The intersection of disease and melatonin-related genes yielded potential target genes of melatonin treatment for periodontitis. These target genes were further investigated by protein-protein interaction network and GO/KEGG enrichment analysis. In addition, the interactions between melatonin and key target genes were interrogated by molecular docking simulations. Then, we performed animal studies to validate the therapeutic effect of melatonin by injecting melatonin into the peritoneal cavity of ligation-induced periodontitis (LIP) mice. The effects of melatonin on the predicted target proteins were also analyzed using Western blot and immunofluorescence techniques. Finally, we constructed an in vitro cellular model and validated the direct effect of melatonin on the predicted targets by using qPCR. Results We identified 8 potential target genes by network pharmacology analysis. Enrichment analysis suggests that melatonin may treat periodontitis by inhibiting the expression of three potential targets (MPO, MMP8, and MMP9). Molecular docking results showed that melatonin could effectively bind to MMP8 and MMP9. Subsequently, melatonin was further validated in a mouse LIP model to inhibit the expression of MPO, MMP8, and MMP9 in the periodontal tissue. Finally, we verified the direct effect of melatonin on the mRNA expression of MPO, MMP8, and MMP9 in an in vitro cellular model. Conclusions Through a combination of network pharmacology and experimental validation, this study provides a more comprehensive understanding of the mechanism of melatonin to treat periodontitis. Our study suggests that MPO, MMP8, and MMP9 as key target genes of melatonin to treat periodontitis. These findings present a more comprehensive basis for further investigation into the mechanisms of pharmacological treatment of periodontitis by melatonin.
Collapse
Affiliation(s)
- Kamoran Tuerhong
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Kehao Liu
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Danfeng Shen
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Qianyu Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Qi Huang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Mingcong Yang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Ziyu Huang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Lu Wang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China
| | - Sheng Yang
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China
| | - Yuzhou Li
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China
| |
Collapse
|
3
|
Hu X, Diao Y, Hao Z, Hao M, Xie M, Rong H, Zhu T. Histopathological analysis of the wall enhancement of the spinal dural arteriovenous fistulae's draining veins. Acta Neurol Belg 2024; 124:927-934. [PMID: 38430359 DOI: 10.1007/s13760-024-02483-3] [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: 09/18/2023] [Accepted: 01/18/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE The mechanism behind SDAVF is still unclear. We discovered that the vessel wall of the SDAVF-DV occasionally showed enhancement in MRI, and this study assessed the relationship between the enhancement of the draining vein's wall and its histology. METHODS For histopathologic analysis, 16 draining vein samples from 16 patients with SDAVF were included, 3 normal arteries and 3 normal veins were chosen as comparison. We assessed the imaging and microscopic characteristics of the draining veins in SDAVF patients. The former included the presence of significant enhancement of the wall of the draining vein in MRI, and the latter included the adherence, aggregation, infiltration of pro-inflammatory factors and inflammatory cells. Immuno-histochemical staining was performed using IL-1β, IL-8, TGF-β as well as MPO and MMP-9, and positive results were counted. Multiple logistic regression analysis was used to determine whether the infiltration of inflammatory cells was connected to vessel wall enhancement in the SDAVF-DV. RESULTS Infiltration of inflammatory cells was significantly higher in SDAVF-DV compared to normal vessels, 7 out of 16 patients significantly had enhancement of the vessel wall of SDAVF-DV, and logistic regression analysis showed that samples with more infiltration of inflammatory cells were more likely to show enhancement of the SDAVF-DV walls. CONCLUSION There was considerable inflammatory cells infiltration in SDAVF-DV, and this may explain why their vessel wall had such a significant enhancement in MRI.
Collapse
Affiliation(s)
- Xiaojun Hu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuhang Diao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhenghao Hao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Mingyu Hao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Minghao Xie
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Hongtao Rong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Tao Zhu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
| |
Collapse
|
4
|
Zhang F, Mo Y, Cao X, Zhou Y, Liu YD, Zhong R. Identification of reaction sites and chlorinated products of purine bases and nucleosides during chlorination: a computational study. Org Biomol Chem 2024; 22:2851-2862. [PMID: 38516867 DOI: 10.1039/d3ob02111d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Hypochlorous acid (HOCl) released from activated leukocytes plays a significant role in the human immune system, but is also implicated in numerous diseases due to its inappropriate production. Chlorinated nucleobases induce genetic changes that potentially enable and stimulate carcinogenesis, and thus have attracted considerable attention. However, their multiple halogenation sites pose challenges to identify them. As a good complement to experiments, quantum chemical computation was used to uncover chlorination sites and chlorinated products in this study. The results indicate that anion salt forms of all purine compounds play significant roles in chlorination except for adenosine. The kinetic reactivity order of all reaction sites in terms of the estimated apparent rate constant kobs-est (in M-1 s-1) is heterocyclic NH/N (102-107) > exocyclic NH2 (10-2-10) > heterocyclic C8 (10-5-10-1), but the order is reversed for thermodynamics. Combining kinetics and thermodynamics, the numerical simulation results show that N9 is the most reactive site for purine bases to form the main initial chlorinated product, while for purine nucleosides N1 and exocyclic N2/N6 are the most reactive sites to produce the main products controlled by kinetics and thermodynamics, respectively, and C8 is a possible site to generate the minor product. The formation mechanisms of biomarker 8-Cl- and 8-oxo-purine derivatives were also investigated. Additionally, the structure-kinetic reactivity relationship study reveals a good correlation between lg kobs-est and APT charge in all purine compounds compared to FED2 (HOMO), which proves again that the electrostatic interaction plays a key role. The results are helpful to further understand the reactivity of various reaction sites in aromatic compounds during chlorination.
Collapse
Affiliation(s)
- Fuhao Zhang
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Yonghang Mo
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Xiaomin Cao
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Yingying Zhou
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Yong Dong Liu
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Rugang Zhong
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| |
Collapse
|
5
|
Islam Anoy MM, Kim WJ, Gelston S, Fleming D, Patel R, Beyenal H. Evaluation of Treatment of Methicillin-Resistant Staphylococcus aureus Biofilms with Intermittent Electrochemically-Generated H 2O 2 or HOCl. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.22.586337. [PMID: 38586004 PMCID: PMC10996509 DOI: 10.1101/2024.03.22.586337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Chronic wound infections can be difficult to treat and may lead to impaired healing and worsened patient outcomes. Novel treatment strategies are needed. This study evaluated effects of intermittently produced H2O2 and HOCl, generated via an electrochemical bandage (e-bandage), against methicillin-resistant Staphylococcus aureus biofilms in an agar membrane biofilm model. By changing the working electrode potential, the e-bandage generated either HOCl (1.5 VAg/AgCl) or H2O2 (-0.6 VAg/AgCl). The degree of biocidal activity of intermittent treatment with HOCl and H2O2 correlated with HOCl treatment time; HOCl treatment durations of 0, 1.5, 3, 4.5, and 6 hours (with the rest of the 6 hour total treatment time devoted to H2O2 generation) resulted in mean biofilm reductions of 1.36±0.2, 2.22±0.16, 3.46±0.38, 4.63±0.74 and 7.66±0.5 log CFU/cm2, respectively vs. non-polarized controls, respectively. However, application of H2O2 immediately after HOCl treatment was detrimental to biofilm removal. For example, 3-hours HOCl treatment followed by 3-hours H2O2 resulted in a 1.90±0.84 log CFU/cm2 lower mean biofilm reduction than 3-hours HOCl treatment followed by 3-hours non-polarization. HOCl generated over 3-hours exhibited biocidal activity for at least 7.5-hours after e-bandage operation ceased; 3-hours of HOCl generation followed by 7.5-hours of non-polarization resulted in a biofilm cell reduction of 7.92±0.12 log CFU/cm2 vs. non polarized controls. Finally, intermittent treatment with HOCl (i.e., interspersed with periods of e-bandage non-polarization) for various intervals showed similar effects (approximately 6 log CFU/cm2 reduction vs. non-polarized control) to continuous treatment with HOCl for 3-hours, followed by 3-hours of non-polarization. These findings suggest that timing and sequencing of HOCl and H2O2 treatments are crucial for maximizing biofilm control.
Collapse
Affiliation(s)
- Md Monzurul Islam Anoy
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Won-Jun Kim
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Suzanne Gelston
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Derek Fleming
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Robin Patel
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota 55905, USA
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Haluk Beyenal
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| |
Collapse
|
6
|
Chancel R, Lopez-Castroman J, Baca-Garcia E, Mateos Alvarez R, Courtet P, Conejero I. Biomarkers of Bipolar Disorder in Late Life: An Evidence-Based Systematic Review. Curr Psychiatry Rep 2024; 26:78-103. [PMID: 38470559 DOI: 10.1007/s11920-024-01483-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/09/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE OF REVIEW Review the current evidence on biomarkers for bipolar disorder in the older adults. We conducted a systematic search of PubMed MEDLINE, PsycINFO, and Web of Science databases using the MeSH search terms "Biomarkers", "Bipolar Disorder", "Aged" and and "Aged, 80 and over". Studies were included if they met the following criteria: (1) the mean age of the study population was 50 years old or older, (2) the study included patients with bipolar disorder, and (3) the study examined one type of biomarkers or more including genetic, neuroimaging, and biochemical biomarkers. Reviews, case reports, studies not in English and studies for which no full text was available were excluded. A total of 26 papers were included in the final analysis. RECENT FINDINGS Genomic markers of bipolar disorder in older adults highlighted the implication of serotonin metabolism, while the expression of genes involved in angiogenesis was dysregulated. Peripheral blood markers were mainly related with low grade inflammation, axonal damage, endothelial dysfunction, and the dysregulation of the HPA axis. Neuroanatomical markers reflected a dysfunction of the frontal cortex, a loss of neurones in the anterior cingulate cortex and a reduction of the hippocampal volume (in patients older than 50 years old). While not necessarily limited to older adults, some of them may be useful for differential diagnosis (neurofilaments), disease staging (homocysteine, BDNF) and the monitoring of treatment outcomes (matrix metalloproteinases). Our review provides a comprehensive overview of the current evidence on biomarkers for bipolar disorder in the older adults. The identification of biomarkers may aid in the diagnosis, treatment selection, and monitoring of bipolar disorder in older adults, ultimately leading to improved outcomes for this population. Further research is needed to validate and further explore the potential clinical utility of biomarkers in this population.
Collapse
Affiliation(s)
- R Chancel
- PSNREC, Univ Montpellier, INSERM, CHU de Montpellier, Montpellier, France
- Department of Emergency Psychiatry and Acute Care, Lapeyronie Hospital, CHU Montpellier, Montpellier, France
| | - J Lopez-Castroman
- Department of Psychiatry, Nimes University Hospital, Nimes, France
- Department of Signal Theory and Communications, Carlos III University, Madrid, Spain
- Institut de Génomique Fonctionnelle, University of Montpellier, CNRS-INSERM, Montpellier, France
- Centro de Investigación Biomédica en Red de Salud Mental, Madrid, Spain
| | - E Baca-Garcia
- Instituto de Investigación Sanitaria Fundación Jiménez Díaz, Madrid, Spain
- Department of Psychiatry, Hospital Universitario Rey Juan Carlos, Móstoles, Madrid, Spain
- Universidad Autónoma de Madrid, Madrid, Spain
- Department of Psychiatry, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
- Department of Psychiatry, Hospital Universitario Central de Villalba, Madrid, Spain
- Department of Psychiatry, Hospital Universitario Infanta Elena, Valdemoro, Madrid, Spain
- Universidad Católica del Maude, Talca, Chile
- CIBERSAM, Instituto de Salud Carlos III, Madrid, Spain
| | - R Mateos Alvarez
- Department of Psychiatry, University of Santiago de Compostela, Santiago de Compostela, Spain
- Psychogeriatric Unit, CHUS University Hospital, Santiago de Compostela, Spain
| | - Ph Courtet
- PSNREC, Univ Montpellier, INSERM, CHU de Montpellier, Montpellier, France
- Department of Emergency Psychiatry and Acute Care, Lapeyronie Hospital, CHU Montpellier, Montpellier, France
| | - I Conejero
- Instituto de Investigación Sanitaria Fundación Jiménez Díaz, Madrid, Spain.
- Universidad Autónoma de Madrid, Madrid, Spain.
- Department of Psychiatry, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain.
- Department of Psychiatry, CHU Nîmes, PSNREC, INSERM, University of Montpellier, Nîmes, France.
- Pôle de psychiatrie, CHU Nîmes, Rue du Professeur Robert Debré, 30900, Nîmes, France.
| |
Collapse
|
7
|
Basnet A, Landreth KM, Nohoesu R, Santiago SP, Geldenhuys WJ, Boone BA, Liu TW. Targeting myeloperoxidase limits myeloid cell immunosuppression enhancing immune checkpoint therapy for pancreatic cancer. Cancer Immunol Immunother 2024; 73:57. [PMID: 38367056 PMCID: PMC10874341 DOI: 10.1007/s00262-024-03647-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/29/2024] [Indexed: 02/19/2024]
Abstract
Pancreatic ductal adenocarcinoma is a devastating disease characterized by an extreme resistance to current therapies, including immune checkpoint therapy. The limited success of immunotherapies can be attributed to a highly immunosuppressive pancreatic cancer microenvironment characterized by an extensive infiltration of immune suppressing myeloid cells. While there are several pathways through which myeloid cells contribute to immunosuppression, one important mechanism is the increased production of reactive oxygen species. Here, we evaluated the contribution of myeloperoxidase, a myeloid-lineage restricted enzyme and primary source of reactive oxygen species, to regulate immune checkpoint therapy response in preclinical pancreatic cancer models. We compared treatment outcome, immune composition and characterized myeloid cells using wild-type, myeloperoxidase-deficient, and myeloperoxidase inhibitor treated wild-type mice using established subcutaneous pancreatic cancer models. Loss of host myeloperoxidase and pharmacological inhibition of myeloperoxidase in combination with immune checkpoint therapy significantly delayed tumor growth. The tumor microenvironment and systemic immune landscape demonstrated significant decreases in myeloid cells, exhausted T cells and T regulatory cell subsets when myeloperoxidase was deficient. Loss of myeloperoxidase in isolated myeloid cell subsets from tumor-bearing mice resulted in decreased reactive oxygen species production and T cell suppression. These data suggest that myeloperoxidase contributes to an immunosuppressive microenvironment and immune checkpoint therapy resistance where myeloperoxidase inhibitors have the potential to enhance immunotherapy response. Repurposing myeloperoxidase specific inhibitors may provide a promising therapeutic strategy to expand therapeutic options for pancreatic cancer patients to include immunotherapies.
Collapse
Affiliation(s)
- Angisha Basnet
- Department of Microbiology, Immunology, and Cell Biology, School of Medicine, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506, USA
| | - Kaitlyn M Landreth
- Department of Microbiology, Immunology, and Cell Biology, School of Medicine, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506, USA
| | - Remi Nohoesu
- Department of Microbiology, Immunology, and Cell Biology, School of Medicine, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506, USA
| | - Stell P Santiago
- Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Werner J Geldenhuys
- WVU Cancer Institute, West Virginia University, Morgantown, WV, 26506, USA
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, WV, 26506, USA
| | - Brian A Boone
- WVU Cancer Institute, West Virginia University, Morgantown, WV, 26506, USA
- Division of Surgical Oncology, Department of Surgery, West Virginia University, Morgantown, WV, 26506, USA
| | - Tracy W Liu
- Department of Microbiology, Immunology, and Cell Biology, School of Medicine, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506, USA.
- WVU Cancer Institute, West Virginia University, Morgantown, WV, 26506, USA.
| |
Collapse
|
8
|
Lu HY, Tsai WC, Liu JS, Huang CH. Preparation and evaluation of Cordyceps militaris polysaccharide- and sesame oil-loaded nanoemulsion for the treatment of candidal vaginitis in mice. Biomed Pharmacother 2023; 167:115506. [PMID: 37716120 DOI: 10.1016/j.biopha.2023.115506] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/02/2023] [Accepted: 09/12/2023] [Indexed: 09/18/2023] Open
Abstract
BACKGROUND Candida albicans is the most prevalent fungal pathogen, affecting over 75% of women who have experienced candidal vaginitis. Given the identification of drug-resistant C. albicans strains, there is an urgent need to develop therapeutic methods for treating vaginal Candida infection. Polysaccharide is the major bioactive component of Cordyceps militaris, known to modulate immune responses and alleviate inflammation. Sesame oil is known with anti-microbial and anti-inflammatory activities. METHODS C. militaris polysaccharide was prepared and formulated with sesame oil to prepare emulsion and nanoemulsion, which are ideal mucosal delivery systems for both hydrophobic and hydrophilic compounds concurrently. The physical property and storage stability of these formulations were illustrated, and their effects on ameliorating vaginitis were investigated in a murine model of vaginal Candida infection. RESULTS C. militaris polysaccharide-containing nanoemulsion showed smaller particle size, lower polydispersity index, higher zeta-potential and better stability than emulsion. Intravaginal administration of C. militaris polysaccharide-containing nanoemulsion significantly attenuated C. militaris colonization and vaginitis. Notably, these formulations exerted distinct effects on modulating cell infiltration and splenic cytokine production. Moreover, different profile of vaginal microflora was observed among the treatment groups, revealing the potential action mechanisms of these formulations to mitigate vaginal Candida infection. CONCLUSION C. militaris polysaccharide- and sesame oil-containing nanoemulsion is potential to be developed as intravaginal therapeutic strategy for C. albicans-induced vaginitis.
Collapse
Affiliation(s)
- Hsueh-Yu Lu
- Department of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Wei-Chung Tsai
- Department of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Jia-Shan Liu
- Department of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Chung-Hsiung Huang
- Department of Food Science, National Taiwan Ocean University, Keelung 20224, Taiwan; Center for Marine Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan.
| |
Collapse
|
9
|
Wang L, Zhou Y, Liu YD, Zhong R. Computational Investigations of Reaction Mechanisms and Transformation Products of Olefins with Hypochlorous Acid. J Phys Chem A 2023. [PMID: 37303114 DOI: 10.1021/acs.jpca.3c01244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hypochlorous acid (HOCl) as the main component in chlorination and also as the innate immune factor relevant to immune defense has attracted considerable attention. Electrophilic addition reaction of olefins with HOCl, one of the most important prototype of chemical reactions, has been intensively studied for a long time; however, it has not been fully understood yet. In this study, addition reaction mechanisms and transformation products of model olefins with HOCl were systematically investigated by the density functional theory method. The results indicate that the traditionally believed stepwise mechanism with a chloronium-ion intermediate is only suitable for olefins substituted with electron-donating groups (EDGs) and weak electron-withdrawing groups (EWGs) but it is a carbon-cation intermediate that is favorable for EDGs featuring p-π or π-π conjugation with the C═C moiety. Moreover, olefins substituted with moderate or/and strong EWGs prefer the concerted and nucleophilic addition mechanisms, respectively. Epoxide and truncated aldehyde as the main transformation products can be generated from chlorohydrin through a series of reactions involving hypochlorite; however, their generation is kinetically not as feasible as the formation of chlorohydrin. The reactivity of three chlorinating agents (HOCl, Cl2O, and Cl2) and the case study of chlorination and degradation of cinnamic acid were also explored. Additionally, APT charge on the double-bond moiety in olefin and energy gap (ΔE) between the highest occupied molecular orbital (HOMO) energy of olefin and the lowest unoccupied molecular orbital (LUMO) energy of HOCl were found to be good parameters to distinguish the regioselectivity of chlorohydrin and reactivity of olefin, respectively. The findings of this work are helpful in further understanding the chlorination reactions of unsaturated compounds and identifying complicated transformation products.
Collapse
Affiliation(s)
- Luhong Wang
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yingying Zhou
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yong Dong Liu
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Rugang Zhong
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
10
|
Degotte G, Frederich M, Francotte P, Franck T, Colson T, Serteyn D, Mouithys-Mickalad A. Targeting Myeloperoxidase Activity and Neutrophil ROS Production to Modulate Redox Process: Effect of Ellagic Acid and Analogues. Molecules 2023; 28:molecules28114516. [PMID: 37298992 DOI: 10.3390/molecules28114516] [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: 04/13/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Malaria is an infectious disease caused by a Plasmodium genus parasite that remains the most widespread parasitosis. The spread of Plasmodium clones that are increasingly resistant to antimalarial molecules is a serious public health problem for underdeveloped countries. Therefore, the search for new therapeutic approaches is necessary. For example, one strategy could consist of studying the redox process involved in the development of the parasite. Regarding potential drug candidates, ellagic acid is widely studied due to its antioxidant and parasite-inhibiting properties. However, its low oral bioavailability remains a concern and has led to pharmacomodulation and the synthesis of new polyphenolic compounds to improve antimalarial activity. This work aimed at investigating the modulatory effect of ellagic acid and its analogues on the redox activity of neutrophils and myeloperoxidase involved in malaria. Overall, the compounds show an inhibitory effect on free radicals as well as on the enzyme horseradish peroxidase- and myeloperoxidase (HRP/MPO)-catalyzed oxidation of substrates (L-012 and Amplex Red). Similar results are obtained with reactive oxygen species (ROS) produced by phorbol 12-mystate acetate (PMA)-activated neutrophils. The efficiency of ellagic acid analogues will be discussed in terms of structure-activity relationships.
Collapse
Affiliation(s)
- Gilles Degotte
- Laboratory of Medicinal Chemistry, Center of Interdisciplinary Research on Medicines (CIRM), University of Liege, 4000 Liège, Belgium
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Michel Frederich
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Pierre Francotte
- Laboratory of Medicinal Chemistry, Center of Interdisciplinary Research on Medicines (CIRM), University of Liege, 4000 Liège, Belgium
| | - Thierry Franck
- Centre for Oxygen, Research & Development (CORD), Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Thomas Colson
- Laboratory of Medicinal Chemistry, Center of Interdisciplinary Research on Medicines (CIRM), University of Liege, 4000 Liège, Belgium
| | - Didier Serteyn
- Centre for Oxygen, Research & Development (CORD), Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
- Department of Clinical Veterinary, Equine Clinic, Large Animal Surgery, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - Ange Mouithys-Mickalad
- Centre for Oxygen, Research & Development (CORD), Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| |
Collapse
|
11
|
Yeom JE, Kim SK, Park SY. Regulation of the Gut Microbiota and Inflammation by β-Caryophyllene Extracted from Cloves in a Dextran Sulfate Sodium-Induced Colitis Mouse Model. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227782. [PMID: 36431883 PMCID: PMC9695579 DOI: 10.3390/molecules27227782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Ulcerative colitis is an inflammatory bowel disease characterized by symptoms such as abdominal pain, diarrhea, bleeding, and weight loss. Ulcerative colitis is typically treated with anti-inflammatory drugs; however, these drugs are associated with various side effects, limiting their use. β-Caryophyllene (BCP), a natural compound derived from cloves, has antioxidant, antibacterial, and anti-inflammatory activities. In this study, we aimed to investigate the effects of BCP on colitis in a dextran sulfate sodium (DSS)-induced colitis mouse model. BCP was administered for seven days, followed by 2.5% DSS for additional seven days to induce colitis. Changes in stool weight, recovery of gut motility, colon length, colon histology, myeloperoxidase activity, inflammatory cytokines (TNF-α, IL-1β, IL-6, IgA, and IgG), and the gut microbiota were observed. Administration of BCP increased stool weight, restored gut motility, and considerably increased colon length compared to those in the untreated colitis mouse model. In addition, the amount of mucin and myeloperoxidase activity in the colon increased, whereas the concentrations of IL-1β, IL-6, and TNF-α decreased following the administration of BCP. Furthermore, BCP reduced the abundance of Proteobacteria which can cause intestinal immune imbalance. These results suggest that BCP has a potential to be developed as a preventive agent for colitis.
Collapse
Affiliation(s)
- Ji Eun Yeom
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si 31116, Korea
- SFC Bio Co., Ltd., 119, Dandae-ro, Dongnam-gu, Cheonan-si 31116, Korea
| | - Sung-Kyu Kim
- SFC Bio Co., Ltd., 119, Dandae-ro, Dongnam-gu, Cheonan-si 31116, Korea
| | - So-Young Park
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si 31116, Korea
- Correspondence: ; Tel.: +82-41-550-1434; Fax: +82-41-559-7899
| |
Collapse
|
12
|
Shinu P, Sharma M, Gupta GL, Mujwar S, Kandeel M, Kumar M, Nair AB, Goyal M, Singh P, Attimarad M, Venugopala KN, Nagaraja S, Telsang M, Aldhubiab BE, Morsy MA. Computational Design, Synthesis, and Pharmacological Evaluation of Naproxen-Guaiacol Chimera for Gastro-Sparing Anti-Inflammatory Response by Selective COX2 Inhibition. Molecules 2022; 27:molecules27206905. [PMID: 36296501 PMCID: PMC9609004 DOI: 10.3390/molecules27206905] [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: 09/20/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022] Open
Abstract
The 4-allyl guaiacol is a natural phenolic molecule that has been widely studied for its antioxidant capacity against reactive-oxygen-species-mediated cellular damage. Therefore, we hypothesized that concomitant use of an antioxidant and NSAID may decrease the risk of gastrointestinal toxicity and make the therapy safer. To address the gastrointestinal toxicity of conventional NSAIDs, a new S-naproxen-4-allyl guaiacol chimera (MAS-1696) was computationally developed, chemically synthesized, and tested for anti-inflammatory effectiveness and gastrointestinal safety. The inhibitory potency of MAS-1696 tested against cyclooxygenase-2 (COX2), 15-lipoxygenase-2 (15-LOX2), and lipoxygenase-5 (5-LOX) in vitro revealed a stronger inhibition of COX2. Furthermore, the MAS-1696 chimera increased the COX selectivity index by 23% as compared to the parent compound naproxen, implying higher efficacy and gastric safety. In vivo data showed that MAS-1696 was less likely to cause gastrointestinal harm than naproxen while also exerting anti-inflammatory and analgesic effects equivalent to or superior to naproxen. In conclusion, MAS-1696 is orally active, bio-labile, and crystalline, making it a medication that may be administered orally.
Collapse
Affiliation(s)
- Pottathil Shinu
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Correspondence: (P.S.); (M.S.); Tel.: +966-551732794 (P.S.)
| | - Manu Sharma
- Department of Chemistry, National Forensic Sciences University Delhi Campus, New Delhi 110085, India
- Correspondence: (P.S.); (M.S.); Tel.: +966-551732794 (P.S.)
| | - Girdhari Lal Gupta
- Department of Pharmacology, School of Pharmacy and Technology Management, SVKM’s NMIMS University, Shirpur 425405, India
| | - Somdutt Mujwar
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, India
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Manish Kumar
- M.M College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala 133201, India
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Manoj Goyal
- Department of Anesthesia Technology, College of Applied Medical Sciences in Jubail, Imam Abdul Rahman Bin Faisal University, Jubail 35816, Saudi Arabia
| | - Purna Singh
- Department of Physiology, College of Medicine, Saint James School of Medicine, The Valley 3872, Anguilla
| | - Mahesh Attimarad
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Katharigatta N. Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban 4000, South Africa
| | - Sreeharsha Nagaraja
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmaceutical Chemistry, Vidya Siri College of Pharmacy, Off Sarjapura Road, Bangalore 560035, India
| | - Mallikarjun Telsang
- Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Bandar E. Aldhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Mohamed A. Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, Minia University, El-Minia 61511, Egypt
| |
Collapse
|
13
|
Zhang Y, Guo L, Dai Q, Shang B, Xiao T, Di X, Zhang K, Feng L, Shou J, Wang Y. A signature for pan-cancer prognosis based on neutrophil extracellular traps. J Immunother Cancer 2022; 10:jitc-2021-004210. [PMID: 35688556 PMCID: PMC9189842 DOI: 10.1136/jitc-2021-004210] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Neutrophil extracellular traps (NETs) were originally thought to be formed by neutrophils to trap invading microorganisms as a defense mechanism. Increasing studies have shown that NETs play a pivotal role in tumor progression and diffusion. In this case, transcriptome analysis provides an opportunity to unearth the association between NETs and clinical outcomes of patients with pan-cancer. METHODS The transcriptome sequencing data of The Cancer Genome Atlas pan-cancer primary focus was obtained from UCSC Xena, and a 19-gene NETs score was then constructed using the Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression model based on the expression levels of 69 NETs initial biomarkers we collected from multistudies. In addition, multiple datasets covering multiple cancer types from other databases were collected and used to validate the signature. Gene ontology enrichment analyses were used to annotate the functions of NETs-related pathways. Immunohistochemistry (IHC) was implemented to evaluate the role of NETs-related genes in clinical patients across types of tumors, including lung adenocarcinoma (n=58), colorectal carcinoma (n=93), kidney renal clear cell carcinoma (n=90), and triple-negative breast cancer (n=80). RESULTS The NETs score was calculated based on 19-NETs related genes according to the LASSO Cox model. The NETs score was considered a hazardous factor in most cancer types, with a higher score indicating a more adverse outcome. In addition, we found that NETs were significantly correlated to various malignant biological processes, such as the epithelial to mesenchymal transition (R=0.7444, p<0.0001), angiogenesis (R=0.5369, p<0.0001), and tumor cell proliferation (R=0.3835, p<0.0001). Furthermore, in IHC cohorts of a variety of tumors, myeloperoxidase, a gene involved in the model and a classical delegate of NETs formation, was associated with poor clinical outcomes. CONCLUSIONS Collectively, these constitutive and complementary biomarkers represented the ability of NETs formation to predict the development of patients' progression. Integrative transcriptome analyses plus clinical sample validation may facilitate the biomarker discovery and clinical transformation.
Collapse
Affiliation(s)
- Yi Zhang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Liping Guo
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Qichen Dai
- Department of Breast Surgery, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bingqing Shang
- Department of Urology, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ting Xiao
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuebing Di
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kaitai Zhang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin Feng
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianzhong Shou
- Department of Urology, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yipeng Wang
- Department of Breast Surgery, National Cancer Center
- National Clinical Research Center for Cancer
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
14
|
Han Y, Zhou Y, Liu YD, Zhong R. Reaction Mechanisms of Histidine and Carnosine with Hypochlorous Acid Along with Chlorination Reactivity of N-Chlorinated Intermediates: A Computational Study. Chem Res Toxicol 2022; 35:750-759. [PMID: 35436107 DOI: 10.1021/acs.chemrestox.1c00389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hypochlorous acid (HOCl) released from activated leukocytes not only plays a significant role in the human immune system but is also implicated in numerous diseases including atherosclerosis and some cancers due to its inappropriate production. Histidine (His) and carnosine (Car), as a respective mediator and protective agent of HOCl damage, have attracted considerable attention; however, their detailed reaction mechanisms are still unclear. In this study, using a His residue with two peptide bond groups (HisRes) as a model, the reaction mechanisms of HisRes and Car including NεH and NδH tautomers with HOCl along with the chlorination reactivity of N-chlorinated intermediates were investigated by quantum chemical methods. The obtained results indicate that in the imidazole side chain, the pyridine-like N is the most reactive site rather than the pyrrole-like N, and the kinetic order of all of the possible reaction sites in HisRes follows pyridine-like N > imidazole Cδ ≫ imidazole Cε > pyrrole-like N, while that in Car is pyridine-like N ≫ imidazole Cδ ≫ amide N. As for N-chlorinated intermediates at imidazole, although the unprotonated form has a low chlorination reactivity as expected, it can still chlorinate tyrosine. Especially, the protonated form exhibits similar ability to HOCl, causing secondary damage in vivo. N-Chlorinated Car features higher internal chlorine migration ability than its intermolecular transchlorination, preventing further HOCl-induced damage. Additionally, a generally overlooked nucleophilic Cl- shift is also found in N-chlorinated Car/HisRes, indicating that nucleophilic sites in biomolecules also need to be considered. The outcomes of this study are expected to expand our understanding of secondary damage and protective mechanisms involved in HOCl in humans.
Collapse
Affiliation(s)
- Yuzhou Han
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yingying Zhou
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yong Dong Liu
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Rugang Zhong
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
15
|
Cho SY, Kim SR, Vaidya B, Kwon J, Kim D. Identification of rearing temperature-dependent host defense signaling against viral hemorrhagic septicemia virus infection. FISH & SHELLFISH IMMUNOLOGY 2022; 123:257-264. [PMID: 35301114 DOI: 10.1016/j.fsi.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Viral hemorrhagic septicemia virus (VHSV) infection is associated with fatal outcomes in the aquaculture production of olive flounder (Paralichthys olivaceus). Olive flounders at low and high temperatures are known to be highly susceptible and resistant to VHSV infection, respectively. To study temperature-dependent innate immune activity, 4-aminobenzoic hydrazide (4-AH), a myeloperoxidase (MPO) inhibitor, was used to treat VHSV-infected olive flounders reared at a high temperature of 20 °C (20VI). Mortality, the MPO transcription, and the proteomic expression pattern of the 20VI group were then compared with those of groups of VHSV-infected flounders reared at 15 °C (15V) and 20 °C (20V). The cumulative mortality rate of the 20VI group was increased by 35% compared with that of the untreated 20V group. The MPO transcription was decreased 5.8-fold in 20VI than in 20V group. Its expression decreased further at a lower temperature and after exposure to VHSV. Histopathological analysis revealed necrosis of splenic tissue in 20VI and 15V, but not in 20V group. Based on clustering analysis, proteins with increased expression in 15V and 20VI groups were associated with viral mRNA translation and reproduction compared with those of 20V group. Increased expression of DHX58, MX1, and UBB was detected in 15V and 20VI groups, suggesting a role in triggering innate immune response. Unfortunately, these genes failed to induce the translocation of GLUT4 to the surface membrane from the intracellular location due to decreased expression of 14-3-3 proteins (YWHAB and YWHAZ) and microtubules (TUBA1A and TUBB4B). Suppression of glucose supply led to inactivation of MPO and suppression of MHC-I and MHC-II-linked immune activity, resulting in high viral infection and spread. In conclusion, this study highlights that defective GLUT4 translocation-dependent glucose uptake increases the mortality of VHSV-infected olive flounders by inhibiting MPO activity.
Collapse
Affiliation(s)
- Se-Young Cho
- Department of Food Science and Technology, Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Seok Ryel Kim
- Department of Smart Fishery Resources Science, College of Industrial Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Bipin Vaidya
- Department of Food Science and Technology, Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Joseph Kwon
- Department of BioChemical Analysis, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea.
| | - Duwoon Kim
- Department of Food Science and Technology, Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea.
| |
Collapse
|
16
|
Kabanda MM, Bahadur I. A DFT and MP2 mechanistic and kinetic study on hypohalogenation reaction of cysteine and N-acetylcysteine in aqueous solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
Deter HC, Orth-Gomér K, Rauch-Kröhnert U, Albus C, Ladwig KH, Söllner W, de Zwaan M, Grün AS, Ronel J, Hellmich M, Herrmann-Lingen C, Weber C. Depression, anxiety, and vital exhaustion are associated with pro-coagulant markers in depressed patients with coronary artery disease - A cross sectional and prospective secondary analysis of the SPIRR-CAD trial. J Psychosom Res 2021; 151:110659. [PMID: 34763203 DOI: 10.1016/j.jpsychores.2021.110659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 01/08/2023]
Abstract
INTRODUCTION A hyper-coagulant state is a biological mechanism that triggers cardiac events in patients with coronary artery disease (CAD). Depressive symptoms and anxiety predict an unfavourable course of CAD. The SPIRR-CAD-RCT examined the effects of a psychological intervention and provided the opportunity to explore cross-sectional associations between indices of psychological strain and coagulation parameters, as well as prospective changes in depression scores and coagulation parameters. METHODS In this secondary analysis, we investigated 253 CAD patients (194 male; age m 58.9, SD 8.3 yrs.) with mild to moderate depression (≥8 on the HADS-D) at baseline and at follow-up 18 months later: TF, fibrinogen, D-dimer, VWF, FVII and PAI-1 and the course of depression (HAM-D), vital exhaustion (VE) and anxiety scores (HADS-A) were examined by ANOVA in the total and younger age groups (≤ 60). RESULTS HAM-D at baseline was correlated with TF (corr. R2 = 0.27; F = 9.31, p = 0.001). HADS anxiety was associated with fibrinogen (corr. R2.20; F = 7.27, p = 0.001). There was no detectable therapeutic effect on coagulation. Fibrinogen and VWF decreased within 18 months (time effect; p = 0.02; p = 0.04), as did HADS-D in both treatment groups (p < 0.001). Fibrinogen decreased more in patients ≤60 years with high VE compared to low VE (interaction time x group, p = 0.01). CONCLUSIONS This is the first study to show an association between TF and depression. Coagulation parameters as potential mediators of CAD progression correlated cross-sectionally with depression and anxiety and prospectively with VE. Further studies should replicate these correlations in depressed and non-depressed CAD patients. ISRCTN 76240576; clinicaltrials.gov.
Collapse
Affiliation(s)
- Hans-Christian Deter
- Medical Clinic, Psychosomatics, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, German Center for Cardiovascular Research, Partner Site Berlin, Germany.
| | | | - Ursula Rauch-Kröhnert
- Medical Clinic, Cardiology and Pulmonology, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, Germany
| | - Christian Albus
- Department of Psychosomatics and Psychotherapy, University of Cologne, Germany
| | - Karl-Heinz Ladwig
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum Rechts der Isar, Technische Universität München (TUM), German Center for Cardiovascular Research, Partner Site Munich, Germany
| | - Wolfgang Söllner
- Department of Psychosomatic Medicine and Psychotherapy, Paracelsus Medical University, Nuremberg General Hospital, Germany
| | - Martina de Zwaan
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Germany
| | - Anna-Sophia Grün
- Medical Clinic, Psychosomatics, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, German Center for Cardiovascular Research, Partner Site Berlin, Germany
| | - Joram Ronel
- Klinik Barmelweid, Switzerland; Department of Psychosomatic Medicine and Psychotherapy, Klinikum Rechts der Isar, Technische Universität München, Germany
| | - Martin Hellmich
- Clinical Trials Center Cologne, Institute for Medical Statistics, Informatic und Epidemiology (IMSIE), University of Cologne, Germany
| | - Christoph Herrmann-Lingen
- Dept. of Psychosomatic Medicine and Psychotherapy, University of Göttingen Medical Center, German Center for Cardiovascular Research, Partner Site Göttingen, Germany
| | - Cora Weber
- Medical Clinic, Psychosomatics, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, German Center for Cardiovascular Research, Partner Site Berlin, Germany
| | | |
Collapse
|
18
|
Çelik K, Bilim P, Garip G, Durmaz B, Yildirim Sözmen E, Baka M. Acute hypoxia exposure following prenatal stress impairs hippocampus and novelty-seeking behavior in adolescent rats. Int J Dev Neurosci 2021; 82:85-95. [PMID: 34850973 DOI: 10.1002/jdn.10162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/13/2021] [Accepted: 11/23/2021] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES The present study aimed to investigate the effects of acute hypoxia exposure following prenatal stress on the novelty-seeking behavior and hippocampus of adolescent rats. METHODS The offspring were divided into prenatal stress (PS) and non-stress (NS) groups. Both groups were exposed to hypoxia on postnatal day 10 (P10) while control groups were undisturbed. Novel object recognition task was performed in each group. Next, brains were collected to examine hippocampus via immunohistochemical and biochemical studies on postnatal day 35 (P35). RESULTS PS decreased novelty discrimination and synaptophysin (SYN) expressions in both CA1 and CA3 of the hypoxia group prominently (p < 0.05). Nestin-expressing cells were reduced while vascular endothelial growth factor (VEGF) expression was enhanced in the subgranular zone (SGZ) of PS-hypoxia group (p < 0.05). VEGF enhancement triggered angiogenesis in the CA1 and CA3 significantly (p < 0.05). PS also increased thiobarbituric acid reactive substances (TBARS) levels in the hypoxia group as a result of oxidative stress (p < 0.05). CONCLUSION These findings demonstrated that PS exacerbates neurodevelopmental deficits in the hippocampus of acute hypoxia-induced offspring in adolescence.
Collapse
Affiliation(s)
- Kübra Çelik
- Department of Neuroscience, Institute of Health Sciences, Ege University, Izmir, Turkey.,Department of Electroneurophysiology, Vocational School of Health Care Services, Istinye University, Istanbul, Turkey
| | - Petek Bilim
- Department of Neuroscience, Institute of Health Sciences, Ege University, Izmir, Turkey.,Department of Psychology, Faculty of Economics, Business Administration and Social Sciences, Toros University, Mersin, Turkey
| | - Gurur Garip
- Department of Histology and Embryology, School of Medicine, Ege University, Izmir, Turkey
| | - Burak Durmaz
- Department of Medical Biochemistry, School of Medicine, Ege University, Izmir, Turkey
| | - Eser Yildirim Sözmen
- Department of Medical Biochemistry, School of Medicine, Ege University, Izmir, Turkey
| | - Meral Baka
- Department of Histology and Embryology, School of Medicine, Ege University, Izmir, Turkey
| |
Collapse
|
19
|
Urrego N, Sepúlveda P, Aragón M, Ramos FA, Costa GM, Ospina LF, Castellanos L. Flavonoids and saponins from Passiflora edulis f. edulis leaves (purple passion fruit) and its potential anti-inflammatory activity. J Pharm Pharmacol 2021; 73:1530-1538. [PMID: 34436599 DOI: 10.1093/jpp/rgab117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 07/19/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The objective of this work was to evaluate the anti-inflammatory activity of the aqueous extract, fractions and major compounds, which are isolated and identified from Passiflora edulis f. edulis (purple passion fruit) leaves extract. METHODS For the isolation of the major compounds, reversed-phase chromatography and normal phase countercurrent chromatography were used. The separation was followed by thin layer chromatography and HPLC-DAD-ELSD. One-dimensional and two-dimensional NMR and ESI-TOF-MS/MS were used for structural elucidation. The anti-inflammatory activity was evaluated on a TPA multiple dose model of skin chronic inflammation in mice. Additionally, myeloperoxidase (MPO) and nitric oxide synthase (NOS) activity assays were performed as possible mechanisms of action studies. KEY FINDINGS AND CONCLUSIONS The study of the butanolic fraction mainly showed the presence of saponins and flavonoids. Three minor flavonoids were detected; and three known saponins, cyclopassiflosides IX, XI and III were isolated and identified. This is the first unequivocal report of the presence of these compounds in P. edulis f. edulis leaves. The most favourable results of anti-inflammatory activity were obtained for the flavonoid-rich fraction. All the fractions and isolated compounds evaluated, presented high percentages of inhibition of nitric oxide synthase activity.
Collapse
Affiliation(s)
- Norman Urrego
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Farmacia, Bogotá, Colombia
| | - Paula Sepúlveda
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Farmacia, Bogotá, Colombia
| | - Marcela Aragón
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Farmacia, Bogotá, Colombia
| | - Freddy A Ramos
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Química, Bogotá, Colombia
| | - Geison M Costa
- Pontificia Universidad Javeriana, Facultad de Ciencias, Departamento de Química, Bogotá, Colombia
| | - Luis F Ospina
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Farmacia, Bogotá, Colombia
| | - Leonardo Castellanos
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Química, Bogotá, Colombia
| |
Collapse
|
20
|
Munir MT, Kay MK, Kang MH, Rahman MM, Al-Harrasi A, Choudhury M, Moustaid-Moussa N, Hussain F, Rahman SM. Tumor-Associated Macrophages as Multifaceted Regulators of Breast Tumor Growth. Int J Mol Sci 2021; 22:6526. [PMID: 34207035 PMCID: PMC8233875 DOI: 10.3390/ijms22126526] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most commonly occurring cancer in women of Western countries and is the leading cause of cancer-related mortality. The breast tumor microenvironment contains immune cells, fibroblasts, adipocytes, mesenchymal stem cells, and extracellular matrix. Among these cells, macrophages or tumor-associated macrophages (TAMs) are the major components of the breast cancer microenvironment. TAMs facilitate metastasis of the breast tumor and are responsible for poor clinical outcomes. High TAM density was also found liable for the poor prognosis of breast cancer. These observations make altering TAM function a potential therapeutic target to treat breast cancer. The present review summarizes the origin of TAMs, mechanisms of macrophage recruitment and polarization in the tumor, and the contributions of TAMs in tumor progression. We have also discussed our current knowledge about TAM-targeted therapies and the roles of miRNAs and exosomes in re-educating TAM function.
Collapse
Affiliation(s)
- Maliha Tabassum Munir
- Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA; (M.T.M.); (N.M.-M.)
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
| | - Matthew K. Kay
- Texas A&M University Health Sciences Center, College Station, TX 77843, USA; (M.K.K.); (M.C.)
| | - Min H. Kang
- Cancer Center, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA;
| | - Md Mizanur Rahman
- Department of Biological and Environmental Sciences, Qatar University, Doha 2713, Qatar;
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz 616, Oman;
| | - Mahua Choudhury
- Texas A&M University Health Sciences Center, College Station, TX 77843, USA; (M.K.K.); (M.C.)
| | - Naima Moustaid-Moussa
- Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA; (M.T.M.); (N.M.-M.)
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
| | - Fazle Hussain
- Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA;
| | - Shaikh Mizanoor Rahman
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz 616, Oman;
| |
Collapse
|
21
|
Suga N, Murakami A, Arimitsu H, Shiogama K, Tanaka S, Ito M, Kato Y. Elevation of the serotonin-derived quinone, tryptamine-4,5-dione, in the intestine of ICR mice with dextran sulfate-induced colitis. J Clin Biochem Nutr 2021; 69:61-67. [PMID: 34376915 PMCID: PMC8325771 DOI: 10.3164/jcbn.20-161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/20/2020] [Indexed: 11/22/2022] Open
Abstract
Inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, are chronic inflammatory disorders associated with oxidative stress. The intestines produce 5-hydroxytryptamine that may negatively affect disease state under inflammatory conditions when overproduced. 5-Hydroxytryptamine is a substrate for myeloperoxidase and is converted into reactive tryptamine-4,5-dione. Here, an experimental colitis model was established through oral administration of 5% dextran sulfate sodium to ICR mice for 7 days. Furthermore, the formation of tryptamine-4,5-dione in the colorectal mucosa/submucosa and colorectal tissue was analyzed by chemical and immunochemical methodologies. First, free tryptamine-4,5-dione in the homogenate was chemically trapped by o-phenylenediamine and analyzed as the stable phenazine derivative. Tryptamine-4,5-dione localization as adducted proteins in the colorectal tissue was immunohistochemically confirmed, and as demonstrated by both methods, this resulted in the significant increase of tryptamine-4,5-dione in dextran sulfate sodium-challenged mice compared with control mice. Immunohistochemical staining confirmed tryptamine-4,5-dione-positive staining at the myeloperoxidase accumulation site in dextran sulfate sodium-challenged mice colorectal tissue. The tryptamine-4,5-dione locus in the mice was partly matched with that of a specific marker for myeloperoxidase, halogenated tyrosine. Overall, the results possibly indicate that tryptamine-4,5-dione is generated by neutrophil myeloperoxidase in inflammatory tissue and may contribute to the development of inflammatory bowel disease.
Collapse
Affiliation(s)
- Naoko Suga
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| | - Akira Murakami
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan.,Research Institute for Food and Nutritional Sciences, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| | - Hideyuki Arimitsu
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan.,Research Institute for Food and Nutritional Sciences, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| | - Kazuya Shiogama
- Department of Diagnostic Pathology II, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
| | - Sarasa Tanaka
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan.,Research Institute for Food and Nutritional Sciences, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| | - Mikiko Ito
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan.,Research Institute for Food and Nutritional Sciences, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| | - Yoji Kato
- Graduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan.,Research Institute for Food and Nutritional Sciences, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji, Hyogo 670-0092, Japan
| |
Collapse
|
22
|
Jiang Q, Zhao Y, Shui Y, Zhou X, Cheng L, Ren B, Chen Z, Li M. Interactions Between Neutrophils and Periodontal Pathogens in Late-Onset Periodontitis. Front Cell Infect Microbiol 2021; 11:627328. [PMID: 33777839 PMCID: PMC7994856 DOI: 10.3389/fcimb.2021.627328] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/03/2021] [Indexed: 02/05/2023] Open
Abstract
Late-onset periodontitis is associated with a series of inflammatory reactions induced by periodontal pathogens, such as Porphyromonas gingivalis, a keystone pathogen involved in periodontitis. Neutrophils are the most abundant leukocytes in the periodontal pocket/gingival crevice and inflamed periodontal tissues. They form a “wall” between the dental plaque and the junctional epithelium, preventing microbial invasion. The balance between neutrophils and the microbial community is essential to periodontal homeostasis. Excessive activation of neutrophils in response to periodontal pathogens can induce tissue damage and lead to periodontitis persistence. Therefore, illuminating the interactions between neutrophils and periodontal pathogens is critical for progress in the field of periodontitis. The present review aimed to summarize the interactions between neutrophils and periodontal pathogens in late-onset periodontitis, including neutrophil recruitment, neutrophil mechanisms to clear the pathogens, and pathogen strategies to evade neutrophil-mediated elimination of bacteria. The recruitment is a multi-step process, including tethering and rolling, adhesion, crawling, and transmigration. Neutrophils clear the pathogens mainly by phagocytosis, respiratory burst responses, degranulation, and neutrophil extracellular trap (NET) formation. The mechanisms that pathogens activate to evade neutrophil-mediated killing include impairing neutrophil recruitment, preventing phagocytosis, uncoupling killing from inflammation, and resistance to ROS, degranulation products, and NETs.
Collapse
Affiliation(s)
- Qingsong Jiang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yusen Shui
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Zhu Chen
- Department of Conservative Dentistry and Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Mingyun Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| |
Collapse
|
23
|
Singh SP, Ahmad T, Sharma J, Chakrabarti R. Effect of temperature on food consumption, immune system, antioxidant enzymes, and heat shock protein 70 of Channa punctata (Bloch, 1793). FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:79-91. [PMID: 33211243 DOI: 10.1007/s10695-020-00896-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
The impact of water temperature on the physiology of Channa punctata (Bloch, 1793) was evaluated in the present study. Fish were acclimated at 25 ± 1 °C and then exposed at six different temperatures: 10, 15, 20, 25, 30, and 35 °C. C. punctata exposed at 10, 15, and 20 °C showed 30, 21, and 11% reduced food consumption, respectively compared to 25 °C. Significantly higher respiratory burst and myeloperoxidase activities were found in fish exposed at 20 and 25 °C after 12 h of exposure compared to other treatments. Nitric oxide synthase was significantly higher at 25 °C after 12 h and at 25 and 30 °C exposed fish after 7 days compared to others. The reduced glutathione level was significantly higher at 25 °C compared to other treatments after 7 days of exposure. The thiobarbituric acid reactive substances level was minimum at 25 °C. Significantly lower antioxidant enzymes, catalase, glutathione peroxidase, and glutathione S-transferase were found in gills of fish exposed at 25 °C compared to others in both samples. The highest antioxidant enzyme levels were found at 10 °C. Heat shock protein (Hsp) 70 levels were significantly lower in liver and muscle of fish exposed at 25 °C compared to other treatments. The Hsp level was significantly higher at 35 and 30 °C exposed fish compared to others after 12 h, and the level reduced after 7 days in these treatments. Thermal stress affects food consumption rate, immune system, antioxidant enzymes, and enzyme systems in fish. The elevated Hsp70 level serves as a biomarker of stress in C. punctata. Graphical Abstract.
Collapse
Affiliation(s)
- Samar Pal Singh
- Aqua Research Lab, Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Tauqueer Ahmad
- Aqua Research Lab, Department of Zoology, University of Delhi, Delhi, 110007, India
| | - JaiGopal Sharma
- Department of Biotechnology, Delhi Technological University, Bawana Road, Delhi, 110042, India
| | - Rina Chakrabarti
- Aqua Research Lab, Department of Zoology, University of Delhi, Delhi, 110007, India.
| |
Collapse
|
24
|
Wang S, Huang Y, Liu S, Lin Z, Zhang Y, Bao Y. Hemoglobins from Scapharca subcrenata (Bivalvia: Arcidae) likely play an bactericidal role through their peroxidase activity. Comp Biochem Physiol B Biochem Mol Biol 2020; 253:110545. [PMID: 33346114 DOI: 10.1016/j.cbpb.2020.110545] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/04/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Hemoglobin (Hb) is an iron-containing respiratory protein present in all vertebrates and some invertebrates. The blood clam Scapharca subcrenata is one of the few invertebrates that have Hb-containing red hemocytes. In this study, we purified Hb (Ss-Hb), including Ss-HbI and Ss-HbII, from S. subcrenata hemocytes using gel chromatography with a recovery rate of 70.71%, and then characterized their peroxidase activities. Both Ss-Hbs possessed peroxidase activity with high affinity to the substrates guaiacol and H2O2. Moreover, both Ss-Hbs had structural similarities, such as type b heme, proximal histidine (His), distal His, and heme pocket arginine (Arg), with other peroxidases. The optimal peroxidase activity of both Ss-Hbs was at pH 5 and 35 °C, but this was inhibited in the presence of Cu2+ and Fe2+. Ss-Hbs produced [Formula: see text] in the presence of H2O2. β-phenylethylamine, a substrate of peroxidase, increased the [Formula: see text] generation, while Cu2+, an inhibitor of peroxidase, inhibited this reaction. These results indicated that the peroxidase cycle of Ss-Hb was involved in the production of [Formula: see text] . A large amount of [Formula: see text] may be generated by the peroxidase cycle if the substrate is sufficient. During the incubation of Ss-Hbs with Bacillus subtilis, it was speculated that trace H2O2, probably from autoxidation of Ss-Hbs or generated by B. subtilis, started the peroxidase cycle of Ss-Hb. and produced a large amount of [Formula: see text] in the presence of sufficient substrate in the culture medium. It is therefore reasonable to assume that Ss-Hbs played an antibacterial role owing to their peroxidase activity, which produced [Formula: see text] .
Collapse
Affiliation(s)
- Sufang Wang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Yiyi Huang
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315010, China
| | - Si Liu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Zhihua Lin
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Yang Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China.
| |
Collapse
|
25
|
Ueland T, Heggelund L, Lind A, Holten AR, Tonby K, Michelsen AE, Jenum S, Jørgensen MJ, Barratt-Due A, Skeie LG, Nordøy I, Aanensen Fraz MS, Quist-Paulsen E E, Pischke SE, Johal SK, Hesstvedt L, Bogen M, Fevang B, Halvorsen B, Müller F, Bekken GK, Mollnes TE, Dudman S, Aukrust P, Dyrhol-Riise AM, Holter JC. Elevated plasma sTIM-3 levels in patients with severe COVID-19. J Allergy Clin Immunol 2020; 147:92-98. [PMID: 32971109 PMCID: PMC7503135 DOI: 10.1016/j.jaci.2020.09.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023]
Abstract
Background The pathogenesis of coronavirus disease 2019 (COVID-19) is still incompletely understood, but it seems to involve immune activation and immune dysregulation. Objective We examined the parameters of activation of different leukocyte subsets in COVID-19–infected patients in relation to disease severity. Methods We analyzed plasma levels of myeloperoxidase (a marker of neutrophil activation), soluble (s) CD25 (sCD25) and soluble T-cell immunoglobulin mucin domain-3 (sTIM-3) (markers of T-cell activation and exhaustion), and sCD14 and sCD163 (markers of monocyte/macrophage activation) in 39 COVID-19–infected patients at hospital admission and 2 additional times during the first 10 days in relation to their need for intensive care unit (ICU) treatment. Results Our major findings were as follows: (1) severe clinical outcome (ICU treatment) was associated with high plasma levels of sTIM-3 and myeloperoxidase, suggesting activated and potentially exhausted T cells and activated neutrophils, respectively; (2) in contrast, sCD14 and sCD163 showed no association with need for ICU treatment; and (3) levels of sCD25, sTIM-3, and myeloperoxidase were inversely correlated with degree of respiratory failure, as assessed by the ratio of Pao2 to fraction of inspired oxygen, and were positively correlated with the cardiac marker N-terminal pro-B–type natriuretic peptide. Conclusion Our findings suggest that neutrophil activation and, in particular, activated T cells may play an important role in the pathogenesis of COVID-19 infection, suggesting that T-cell–targeted treatment options and downregulation of neutrophil activation could be of importance in this disorder.
Collapse
Affiliation(s)
- Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Tromsø, Norway.
| | - Lars Heggelund
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway; Department of Internal Medicine, Drammen Hospital, Drammen, Norway
| | - Andreas Lind
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Aleksander R Holten
- Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Kristian Tonby
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Synne Jenum
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Marthe J Jørgensen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Andreas Barratt-Due
- Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Linda G Skeie
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Ingvild Nordøy
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Research Laboratory, Nordland Hospital, Bodø, Norway
| | | | - Else Quist-Paulsen E
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Søren E Pischke
- Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway; Department of Immunology, University of Oslo, Oslo, Norway
| | - Simreen K Johal
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Liv Hesstvedt
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Mette Bogen
- Department of Laboratory Medicine, Vestre Viken Hospital Trust, Drammen, Norway
| | - Børre Fevang
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Bente Halvorsen
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Fredrik Müller
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | | | - Tom E Mollnes
- Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Tromsø, Norway; Department of Immunology, University of Oslo, Oslo, Norway; Research Laboratory, Nordland Hospital, Bodø, Norway; Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Susanne Dudman
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Tromsø, Norway; Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Anne M Dyrhol-Riise
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Jan C Holter
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Microbiology, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
26
|
Petrozziello T, Mills AN, Vaine CA, Penney EB, Fernandez-Cerado C, Legarda GPA, Velasco-Andrada MS, Acuña PJ, Ang MA, Muñoz EL, Diesta CCE, Macalintal-Canlas R, Acuña-Sunshine G, Ozelius LJ, Sharma N, Bragg DC, Sadri-Vakili G. Neuroinflammation and histone H3 citrullination are increased in X-linked Dystonia Parkinsonism post-mortem prefrontal cortex. Neurobiol Dis 2020; 144:105032. [PMID: 32739252 DOI: 10.1016/j.nbd.2020.105032] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/17/2020] [Accepted: 07/26/2020] [Indexed: 12/16/2022] Open
Abstract
Neuroinflammation plays a pathogenic role in neurodegenerative diseases and recent findings suggest that it may also be involved in X-linked Dystonia-Parkinsonism (XDP) pathogenesis. Previously, fibroblasts and neuronal stem cells derived from XDP patients demonstrated hypersensitivity to TNF-α, dysregulation in NFκB signaling, and an increase in several pro-inflammatory markers. However, the role of inflammatory processes in XDP patient brain remains unknown. Here we demonstrate that there is a significant increase in astrogliosis and microgliosis in human post-mortem XDP prefrontal cortex (PFC) compared to control. Furthermore, there is a significant increase in histone H3 citrullination (H3R2R8R17cit3) with a concomitant increase in peptidylarginine deaminase 2 (PAD2) and 4 (PAD4), the enzymes catalyzing citrullination, in XDP post-mortem PFC. While there is a significant increase in myeloperoxidase (MPO) levels in XDP PFC, neutrophil elastase (NE) levels are not altered, suggesting that MPO may be released by activated microglia or reactive astrocytes in the brain. Similarly, there was an increase in H3R2R8R17cit3, PAD2 and PAD4 levels in XDP-derived fibroblasts. Importantly, treatment of fibroblasts with Cl-amidine, a pan inhibitor of PAD enzymes, reduced histone H3 citrullination and pro-inflammatory chemokine expression, without affecting cell survival. Taken together, our results demonstrate that inflammation is increased in XDP post-mortem brain and fibroblasts and unveil a new epigenetic potential therapeutic target.
Collapse
Affiliation(s)
- Tiziana Petrozziello
- NeuroEpigenetics Laboratory, Healey Center for ALS at Mass General, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - Alexandra N Mills
- NeuroEpigenetics Laboratory, Healey Center for ALS at Mass General, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - Christine A Vaine
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - Ellen B Penney
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | | | | | | | - Patrick J Acuña
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America; Sunshine Care Foundation, Roxas City, 5800, Capiz, Philippines
| | - Mark A Ang
- Department of Pathology, College of Medicine, University of the Philippines, Manila, Philippines
| | - Edwin L Muñoz
- Department of Pathology, College of Medicine, University of the Philippines, Manila, Philippines
| | | | | | - Geraldine Acuña-Sunshine
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America; Sunshine Care Foundation, Roxas City, 5800, Capiz, Philippines
| | - Laurie J Ozelius
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - Nutan Sharma
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - D Cristopher Bragg
- The Collaborative Center for X-linked Dystonia-Parkinsonism, Department of Neurology, Massachusetts General Hospital, Boston, MA 02129, United States of America
| | - Ghazaleh Sadri-Vakili
- NeuroEpigenetics Laboratory, Healey Center for ALS at Mass General, Massachusetts General Hospital, Boston, MA 02129, United States of America.
| |
Collapse
|
27
|
Smith JM, Thomason C, Sun X, Lennon EM. Diagnosis of bacterial urinary tract infection: Utility of urine myeloperoxidase concentration to predict urine culture results in dogs. PLoS One 2020; 15:e0233566. [PMID: 32442236 PMCID: PMC7244117 DOI: 10.1371/journal.pone.0233566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/07/2020] [Indexed: 11/19/2022] Open
Abstract
Suspected bacterial urinary tract infections (UTI) are a common cause of overuse and misuse of antimicrobials. A bedside diagnostic test that could accurately predict urine culture results would prevent antimicrobial overuse, but accurate biomarkers have not yet been identified in veterinary medicine. The objective of this study was to evaluate urine myeloperoxidase (uMPO) as a rapidly available, accurate marker to predict urine culture results. We hypothesized that uMPO would be higher in dogs with a positive urine culture than in dogs with a negative urine culture, and that uMPO could be used to aid in the accurate diagnosis of significant bacteriuria. Urine samples were collected from a veterinary university clinical pathology lab. uMPO concentration was measured using a commercially available canine myeloperoxidase (MPO) enzyme-linked immunosorbent assay (ELISA). Following validation, samples from 98 dogs that had a urinalysis and urine culture performed as part of their diagnostic investigation were included. Forty-seven dogs had a negative urine culture and fifty-one dogs had a positive urine culture. uMPO levels were significantly higher in samples that had a positive culture (median 2.13 ng/ml; IQR 0.98–7.07) versus samples that had a negative culture (median 1.07 ng/ml; IQR 0.52–1.84)(p < 0.005). Based on receiver-operator characteristic, a cutoff of 0.55 ng/ml was chosen to maximize sensitivity and specificity. Using a cutoff of 0.55 ng/ml, uMPO had a sensitivity of 70% and specificity of 69% to determine the presence of a positive culture. However, the degree of overlap between groups may preclude the use of this test as a surrogate for urine culture in a clinical setting.
Collapse
Affiliation(s)
- Jillian Myers Smith
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Courtney Thomason
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Xiaocun Sun
- Office of Information Technology, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Elizabeth M. Lennon
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, United States of America
- * E-mail:
| |
Collapse
|
28
|
Mammadov R, Suleyman B, Akturan S, Cimen FK, Kurt N, Suleyman Z, Malkoc İ. Effect of lutein on methotrexate-induced oxidative lung damage in rats: a biochemical and histopathological assessment. Korean J Intern Med 2019; 34:1279-1286. [PMID: 31495083 PMCID: PMC6823580 DOI: 10.3904/kjim.2018.145] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/26/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND/AIMS This study aimed to investigate the effect of lutein on methotrexate (MTX)-induced pulmonary toxicity in rats biochemically and histopathologically. METHODS The rats in the MTX + lutein (MTXL, n = 6) group were given 1 mg/kg of lutein orally. A 0.9% NaCl solution was administered orally to the MTX (n = 6) group and the healthy group (HG, n = 6). One hour later, a single 20 mg/kg dose of MTX was injected intraperitoneally in the MTXL and MTX. Lutein or 0.9% NaCl solution was administered once a day for 5 days. At the end of this period, malondialdehyde (MDA), myeloperoxidase (MPO), total glutathione (tGSH), interleukin 1 beta (IL-1β), and tumor necrosis factor alpha (TNF-α) were measured in the lung tissues from the animals euthanized with 50 mg/kg thiopental sodium anesthesia. Subsequently, histopathological examinations were performed. RESULTS The levels of MDA, MPO, IL-1β, and TNF-α in the lung tissue of the MTX were significantly higher than those of the MTXL and HG groups (p < 0.0001), and the amount of tGSH was lower. The histopathological findings in the MTX group, in which the oxidants and cytokines were higher, were more severe. CONCLUSION Lutein prevented the MTX-induced oxidative lung damage biochemically and histopathologically. This result indicates that lutein may be useful in the treatment of MTX-induced lung damage.
Collapse
Affiliation(s)
- Renad Mammadov
- Department of Pharmacology, Erzincan University Faculty of Medicine, Erzincan, Turkey
- Correspondence to Renad Mammadov, M.D. Department of Pharmacology, Erzincan University Faculty of Medicine, Basbaglar Street, Erzincan 24100, Turkey Tel: +90-507-0115922 Fax: +90-446-2261819 E-mail:
| | - Bahadir Suleyman
- Department of Pharmacology, Erzincan University Faculty of Medicine, Erzincan, Turkey
| | - Selcuk Akturan
- Department of Family Medicine, Erzincan University Faculty of Medicine, Erzincan, Turkey
| | - Ferda Keskin Cimen
- Department of Pathology, Erzincan University Faculty of Medicine, Erzincan, Turkey
| | - Nezahat Kurt
- Department of Biochemistry, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Zeynep Suleyman
- Department of Nursing, Erzincan University Faculty of Health Sciences, Erzincan, Turkey
| | - İsmail Malkoc
- Department of Anatomy, Ataturk University Faculty of Medicine, Erzurum, Turkey
| |
Collapse
|
29
|
Marcinkiewicz J, Walczewska M. Neutrophils as Sentinel Cells of the Immune System: A Role of the MPO-halide-system in Innate and Adaptive Immunity. Curr Med Chem 2019; 27:2840-2851. [PMID: 31424363 DOI: 10.2174/0929867326666190819123300] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 06/14/2019] [Accepted: 07/28/2019] [Indexed: 01/24/2023]
Abstract
For decades, neutrophils were generally regarded as the cells of innate immunity with proinflammatory and phagocytic properties involved in a dual activity, beneficial (antimicrobial) and detrimental (tissue damage). Importantly, until the discovery of toll-like receptors (TLRs), a role of neutrophils in adaptive immunity was limited to the effector stage of humoral response and phagocytosis of opsonized antigens. Moreover, in common opinion, neutrophils, as well as the entire innate immune system, were not functionally associated with adaptive immunity. At the time we demonstrated protein chlorination by HOCl, the major product of neutrophil MPO-halide system enhances protein immunogenicity. Based on this discovery, we proposed, as the first, a new role for neutrophils as APC-accessory cells involved in the induction stage of adaptive immunity. Thereafter, we developed our theory concerning the role of neutrophils as the cells which link innate and adaptive immunity. We proposed that protein modification by HOCl may act as a neutrophildependent molecular tagging system, by which sentinel dendritic cells can faster recognise pathogen- derived antigens. Contemporaneously, it was demonstrated that taurine, the most abundant free amino acid in neutrophil cytosol and the major scavenger of HOCl, is a part of the oxidantantioxidant network and is responsible for the regulation and termination of acute inflammation. Moreover, it has been described, that taurine chloramine (TauCl), the physiological products of the reaction of HOCl with taurine, show anti-microbial and anti-inflammatory properties. In this review, the role of HOCl, taurine and TauCl in innate and adaptive immunity will be discussed.
Collapse
Affiliation(s)
| | - Maria Walczewska
- Chair of Immunology, Jagiellonian University Medical College, Krakow, Poland
| |
Collapse
|
30
|
Evaluation of the Biological Effects of Lyophilized Hydrophilic Extract of Rhus coriaria on Myeloperoxidase (MPO) Activity, Wound Healing, and Microbial Infections of Skin Wound Tissues. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5861537. [PMID: 31379964 PMCID: PMC6662417 DOI: 10.1155/2019/5861537] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 06/03/2019] [Accepted: 07/02/2019] [Indexed: 01/11/2023]
Abstract
Impaired wound healing was mainly associated with severe microbial infections which significantly affect diagnostic and therapeutic strategies. Thus, in this study, the potential wound healing activity, anti-inflammatory, and antimicrobial activity of an aqueous extract of Rhus coriaria extract (AERc) were evaluated by wound contraction, scar formation, period of epithelization, MPO enzyme activity, collagenase-2 (MMP-8), hydroxyproline (HPX), and collagen deposition as markers of wound healing at different days of postwound. Phytoconstituents, microbial activity, and fibrogenic markers were screened by HPLC, disc-diffusion, and colorimetric assays. The animals were treated with Rhus coriaria extract (AERc) concentrations at doses of 5 mg.kg−1and 10 mg.kg−1, respectively. On days 6 and 9, the AERc-treated animals at doses of 5 mg.mL−1 and 10 mg.mL−1 exhibited a significant reduction in the wound area, increased deposition of collagen, HPX, and reduction in MMP-8, and MPO enzyme activity when compared with controls. Scar formation and epithelization were completed in 10 days compared to controls. In addition, in wounds infected separately with Staph. aureus or P. aeruginosa, the AERc extract significantly improved wound contraction, deposition of collagen, and HPx and reduced MMP-8 and MPO concentrations, with complete epithelization of wounds in 10-13 days compared to the saline-treated group. Hydrolyzable tannins, gallic acid, quercetin, and myricetin were the most common active components of AERc. In vitro, the AERc and its components were effective against a set of microbes especially Staph. aureus, P. aeruginosa, and Staph. aureus (MRSA). In conclusion, the results showed that antimicrobial, anti-inflammatory, and antioxidant activity of Rhus coriaria extract suggested its importance as a target for formulation of novel drugs against many microbial infections with minimal side effects and could play a good potential role in accelerating wound healing activity via promoting myofibroblast activity, increase of hydroxyproline and collagen deposition, and regulation of MMP-8 and MPO enzyme activities.
Collapse
|
31
|
Jasper AE, McIver WJ, Sapey E, Walton GM. Understanding the role of neutrophils in chronic inflammatory airway disease. F1000Res 2019; 8. [PMID: 31069060 PMCID: PMC6489989 DOI: 10.12688/f1000research.18411.1] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/16/2019] [Indexed: 12/28/2022] Open
Abstract
Airway neutrophilia is a common feature of many chronic inflammatory lung diseases and is associated with disease progression, often regardless of the initiating cause. Neutrophils and their products are thought to be key mediators of the inflammatory changes in the airways of patients with chronic obstructive pulmonary disease (COPD) and have been shown to cause many of the pathological features associated with disease, including emphysema and mucus hypersecretion. Patients with COPD also have high rates of bacterial colonisation and recurrent infective exacerbations, suggesting that neutrophil host defence mechanisms are impaired, a concept supported by studies showing alterations to neutrophil migration, degranulation and reactive oxygen species production in cells isolated from patients with COPD. Although the role of neutrophils is best described in COPD, many of the pathological features of this disease are not unique to COPD and also feature in other chronic inflammatory airway diseases, including asthma, cystic fibrosis, alpha-1 anti-trypsin deficiency, and bronchiectasis. There is increasing evidence for immune cell dysfunction contributing to inflammation in many of these diseases, focusing interest on the neutrophil as a key driver of pulmonary inflammation and a potential therapeutic target than spans diseases. This review discusses the evidence for neutrophilic involvement in COPD and also considers their roles in alpha-1 anti-trypsin deficiency, bronchiectasis, asthma, and cystic fibrosis. We provide an in-depth assessment of the role of the neutrophil in each of these conditions, exploring recent advances in understanding, and finally discussing the possibility of common mechanisms across diseases.
Collapse
Affiliation(s)
- Alice E Jasper
- Birmingham Acute Care Research, Institute of Inflammation and Ageing, University of Birmingham, UK, Birmingham, B15 2TT, UK
| | - William J McIver
- Birmingham Acute Care Research, Institute of Inflammation and Ageing, University of Birmingham, UK, Birmingham, B15 2TT, UK
| | - Elizabeth Sapey
- Birmingham Acute Care Research, Institute of Inflammation and Ageing, University of Birmingham, UK, Birmingham, B15 2TT, UK
| | - Georgia M Walton
- Birmingham Acute Care Research, Institute of Inflammation and Ageing, University of Birmingham, UK, Birmingham, B15 2TT, UK
| |
Collapse
|
32
|
Carroll L, Karton A, Radom L, Davies MJ, Pattison DI. Carnosine and Carcinine Derivatives Rapidly React with Hypochlorous Acid to Form Chloramines and Dichloramines. Chem Res Toxicol 2019; 32:513-525. [DOI: 10.1021/acs.chemrestox.8b00363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Luke Carroll
- The Heart Research Institute, Newtown, New South Wales 2042, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
- Panum Institute, University of Copenhagen, Copenhagen 2200, Denmark
| | - Amir Karton
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Leo Radom
- School of Chemistry, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Michael J. Davies
- The Heart Research Institute, Newtown, New South Wales 2042, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
- Panum Institute, University of Copenhagen, Copenhagen 2200, Denmark
| | - David I. Pattison
- The Heart Research Institute, Newtown, New South Wales 2042, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
33
|
Cascade enzymes within self-assembled hybrid nanogel mimicked neutrophil lysosomes for singlet oxygen elevated cancer therapy. Nat Commun 2019; 10:240. [PMID: 30651559 PMCID: PMC6335431 DOI: 10.1038/s41467-018-08234-2] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/17/2018] [Indexed: 12/24/2022] Open
Abstract
As the first line of innate immune cells to migrate towards tumour tissue, neutrophils, can immediately kill abnormal cells and activate long-term specific adaptive immune responses. Therefore, the enzymes mediated elevation of reactive oxygen species (ROS) bioinspired by neutrophils can be a promising strategy in cancer immunotherapy. Here, we design a core-shell supramolecular hybrid nanogel via the surface phosphatase triggered self-assembly of oligopeptides around iron oxide nanoparticles to simulate productive neutrophil lysosomes. The cascade reaction of superoxide dismutase (SOD) and chloroperoxidase (CPO) within the bioinspired nanogel can convert ROS in tumour tissue to hypochlorous acid (HOCl) and the subsequent singlet oxygen (1O2) species. Studies on both cells and animals demonstrate successful 1O2-mediated cell/tumour proliferation inhibition, making this enzyme therapy capable for treating tumours without external energy activation.
Collapse
|
34
|
Kostic M, Igic M, Jevtovic Stoimenov T, Pejcic A, Pesic Stankovic J. Determination of Salivary Myeloperoxidase, Immunoglobulin E, and Tumor Necrosis Factor-α after Complete Denture Insertion. Med Princ Pract 2019; 28:347-351. [PMID: 30844800 PMCID: PMC6639651 DOI: 10.1159/000499429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/07/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To detect activities of salivary myeloperoxidase (MPO) and concentrations of salivary tumor necrosis factor (TNF)-α as indicators of inflammatory reaction and salivary immunoglobulin E as an indicator of allergic reaction after complete insertion of acrylic dentures. SUBJECTS AND METHODS Complete dentures were made for a uniform group of elderly patients, and saliva samples were taken immediately before they were given to the patients, as well as 2, 3, 7, and 30 days after insertion of the dentures, with simultaneous monitoring of changes in the oral mucosa. RESULTS After 7 and 30 days of wearing upper and lower complete dentures, nonsignificant increases in salivary MPO and TNF-α were proven to be indicators of inflammation. No changes were observed in the values of salivary immunoglobulin E during a 30-day observational period, which excluded the appearance of allergic reactions to acrylic materials in the tested group of patients. CONCLUSION A nonsignificant increase in the levels of MPO was observed on day 7; it decreased after 30 days. TNF-α also tended to increase in a nonsignificant manner.
Collapse
Affiliation(s)
- Milena Kostic
- Department of Prosthodontics, Faculty of Medicine, University of Nis, Nis, Serbia,
| | - Marko Igic
- Department of Prosthodontics, Faculty of Medicine, University of Nis, Nis, Serbia
| | | | - Ana Pejcic
- Department of Oral Medicine and Periodontology, Faculty of Medicine, University of Nis, Nis, Serbia
| | | |
Collapse
|
35
|
Dhaliwal S, Rybak I, Ellis S, Notay M, Trivedi M, Burney W, Vaughn A, Nguyen M, Reiter P, Bosanac S, Yan H, Foolad N, Sivamani R. Prospective, randomized, double‐blind assessment of topical bakuchiol and retinol for facial photoageing. Br J Dermatol 2018; 180:289-296. [DOI: 10.1111/bjd.16918] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2018] [Indexed: 12/11/2022]
Affiliation(s)
- S. Dhaliwal
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - I. Rybak
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - S.R. Ellis
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - M. Notay
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - M. Trivedi
- School of Medicine University of Michigan Ann Arbor MI U.S.A
| | - W. Burney
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - A.R. Vaughn
- Drexel University College of Medicine Philadelphia PA U.S.A
| | - M. Nguyen
- School of Medicine University of California – Davis SacramentoCA U.S.A
| | - P. Reiter
- Nova Southeastern University College of Osteopathic Medicine Fort Lauderdale FL U.S.A
| | - S. Bosanac
- School of Medicine University of California – Davis SacramentoCA U.S.A
| | - H. Yan
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
| | - N. Foolad
- School of Medicine University of California – Davis SacramentoCA U.S.A
| | - R.K. Sivamani
- Department of Dermatology University of California – Davis Sacramento CA U.S.A
- Department of Biological Sciences California State University Sacramento CA U.S.A
| |
Collapse
|
36
|
Zimmermann-Franco DC, Esteves B, Lacerda LM, Souza IDO, Santos JAD, Pinto NDCC, Scio E, da Silva AD, Macedo GC. In vitro and in vivo anti-inflammatory properties of imine resveratrol analogues. Bioorg Med Chem 2018; 26:4898-4906. [PMID: 30193941 DOI: 10.1016/j.bmc.2018.08.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/14/2018] [Accepted: 08/23/2018] [Indexed: 02/06/2023]
Abstract
Resveratrol is a natural polyphenol found mainly on red grapes and in red wine, pointed as an important anti-inflammatory/immunomodulatory molecule. However, its bioavailability problems have limited its use encouraging the search for new alternatives agents. Thus, in this study, we synthetize 12 resveratrol analogues (6 imines, 1 thioimine and 5 hydrazones) and investigated its cytotoxicity, antioxidant activity and in vitro anti-inflammatory/immunomodulatory properties. The most promising compounds were also evaluated in vivo. The results showed that imines presented less cytotoxicity, were more effective than resveratrol on DPPH scavenger and exhibited an anti-inflammatory profile. Among them, the imines with a radical in the para position, on the ring B, not engaged in an intramolecular hydrogen-interaction, showed more prominent anti-inflammatory activity modulating, in vivo, the edema formation, the inflammatory infiltration and cytokine levels. An immunomodulatory activity also was observed in these molecules. Thus, our results suggest that imines with these characteristics presents potential to control inflammatory disorders.
Collapse
Affiliation(s)
- Danielle Cristina Zimmermann-Franco
- Departamento de Parasitologia, Microbiologia e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Bruna Esteves
- Departamento de Parasitologia, Microbiologia e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Leticia Moroni Lacerda
- Departamento de Parasitologia, Microbiologia e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Isabela de Oliveira Souza
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Juliana Alves Dos Santos
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Nícolas de Castro Campos Pinto
- Departamento de Bioquímica, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Elita Scio
- Departamento de Bioquímica, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Adilson David da Silva
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Gilson Costa Macedo
- Departamento de Parasitologia, Microbiologia e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, Bairro Martelos, Juiz de Fora, Minas Gerais 36036-900, Brazil.
| |
Collapse
|
37
|
Butler A, Walton GM, Sapey E. Neutrophilic Inflammation in the Pathogenesis of Chronic Obstructive Pulmonary Disease. COPD 2018; 15:392-404. [DOI: 10.1080/15412555.2018.1476475] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Aidan Butler
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Georgia May Walton
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Elizabeth Sapey
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| |
Collapse
|
38
|
Synthesis and amelioration of inflammatory paw edema by novel benzophenone appended oxadiazole derivatives by exhibiting cyclooxygenase-2 antagonist activity. Biomed Pharmacother 2018; 103:1446-1455. [DOI: 10.1016/j.biopha.2018.04.167] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/21/2018] [Accepted: 04/23/2018] [Indexed: 01/04/2023] Open
|
39
|
de Souza Costa M, Teles RHG, Dutra YM, Neto JCRM, de Brito TV, de Sousa Nunes Queiroz FF, do Vale DBN, de Souza LKM, Silva IS, dos Reis Barbosa AL, Medeiros JVR, Parizotto NA, de Carvalho Filgueiras M. Photobiomodulation reduces neutrophil migration and oxidative stress in mice with carrageenan-induced peritonitis. Lasers Med Sci 2018; 33:1983-1990. [DOI: 10.1007/s10103-018-2569-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 06/21/2018] [Indexed: 11/29/2022]
|
40
|
Basak M, Dutta S, Chowdhury M. Wild raspberry: Antioxidant fruits from Eastern Himalaya. J Food Biochem 2018. [DOI: 10.1111/jfbc.12560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mridushree Basak
- Taxonomy of Angiosperms and Biosystematics Laboratory, Department of Botany; University of North Bengal; Siliguri West Bengal, 734 013 India
| | - Somit Dutta
- Cellular Immunology Laboratory, Department of Zoology; University of North Bengal; Siliguri West Bengal, 734 013 India
| | - Monoranjan Chowdhury
- Taxonomy of Angiosperms and Biosystematics Laboratory, Department of Botany; University of North Bengal; Siliguri West Bengal, 734 013 India
| |
Collapse
|
41
|
Inflammation and neutrophil immunosenescence in health and disease: Targeted treatments to improve clinical outcomes in the elderly. Exp Gerontol 2018; 105:70-77. [DOI: 10.1016/j.exger.2017.12.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/21/2017] [Accepted: 12/22/2017] [Indexed: 12/20/2022]
|
42
|
Dang G, Cui Y, Wang L, Li T, Cui Z, Song N, Chen L, Pang H, Liu S. Extracellular Sphingomyelinase Rv0888 of Mycobacterium tuberculosis Contributes to Pathological Lung Injury of Mycobacterium smegmatis in Mice via Inducing Formation of Neutrophil Extracellular Traps. Front Immunol 2018; 9:677. [PMID: 29670633 PMCID: PMC5893642 DOI: 10.3389/fimmu.2018.00677] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/19/2018] [Indexed: 12/16/2022] Open
Abstract
Mycobacterium tuberculosis is the causative agent of tuberculosis (TB), which mainly causes pulmonary injury and tubercles. Although macrophages are generally considered to harbor the main cells of M. tuberculosis, new evidence suggests that neutrophils are rapidly recruited to the infected lung. M. tuberculosis itself, or its early secreted antigenic target protein 6 (ESAT-6), can induce formation of neutrophil extracellular traps (NETs). However, NETs trap mycobacteria but are unable to kill them. The role of NETs’ formation in the pathogenesis of mycobacteria remains unclear. Here, we report a new M. tuberculosis extracellular factor, bifunctional enzyme Rv0888, with both nuclease and sphingomyelinase activities. Rv0888 sphingomyelinase activity can induce NETs’ formation in vitro and in the lung of the mice and enhance the colonization ability of Mycobacterium smegmatis in the lungs of mice. Mice infected by M. smegmatis harboring Rv0888 sphingomyelinase induced pathological injury and inflammation of the lung, which was mainly mediated by NETs, induced by Rv0888 sphingomyelinase, associated protein (myeloperoxidase) triggered caspase-3. In summary, the study sheds new light on the pathogenesis of mycobacteria and reveals a novel target for TB treatment.
Collapse
Affiliation(s)
- Guanghui Dang
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yingying Cui
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Lei Wang
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Tiantian Li
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Ziyin Cui
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Ningning Song
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Liping Chen
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hai Pang
- School of Medicine, Tsinghua University, Beijing, China
| | - Siguo Liu
- State Key Laboratory of Veterinary Biotechnology, Division of Bacterial Diseases, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| |
Collapse
|
43
|
Barden AE, Shinde S, Burke V, Puddey IB, Beilin LJ, Irish AB, Watts GF, Mori TA. The effect of n-3 fatty acids and coenzyme Q10 supplementation on neutrophil leukotrienes, mediators of inflammation resolution and myeloperoxidase in chronic kidney disease. Prostaglandins Other Lipid Mediat 2018; 136:1-8. [PMID: 29577973 DOI: 10.1016/j.prostaglandins.2018.03.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/31/2018] [Accepted: 03/15/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Neutrophils release leukotriene (LT)B4 and myeloperoxidase (MPO) that may be important mediators of chronic inflammation in chronic kidney disease (CKD). The n-3 fatty acids (n-3 FA) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have the potential to attenuate inflammation through production of LTB5 and the Specialized Proresolving Lipid Mediators (SPM) that promote the resolution of inflammation. In animal models, coenzyme Q10 (CoQ) also attenuates inflammation by reducing MPO and LTB4. OBJECTIVE This study evaluated the independent and combined effects of n-3 FA and CoQ supplementation on neutrophil leukotrienes, the pro-inflammatory eicosanoid 5-hydroxyeicosatetraenoic acid (5-HETE), SPM, and plasma MPO, in patients with CKD. DESIGN In a double-blind, placebo-controlled intervention of factorial design, 85 patients with CKD were randomized to either n-3 FA (4 g), CoQ (200 mg), both supplements, or control (4 g olive oil), daily for 8 weeks. Plasma MPO and calcium ionophore-stimulated neutrophil release of LTs, 5-HETE and SPM were measured at baseline and after 8 weeks. RESULTS Seventy four patients completed the intervention. n-3 FA, but not CoQ, significantly increased neutrophil LTB5 (P < 0.0001) and the SPM 18-hydroxyeicosapentaenoic acid (18-HEPE), resolvin E1 (RvE1), resolvin E2 (RvE2) and resolvin E3 (RvE3) that derive from EPA, as well as 17-hydroxydocosahexaenoic acid (17-HDHA) and resolvin D5 (RvD5) that derive from DHA (all P < 0.01). Neutrophil LTB4 and its metabolites, and 5-HETE were not significantly altered by n-3 FA or CoQ. Plasma MPO was significantly reduced with n-3 FA alone (P = 0.013) but not when given in combination with CoQ. CONCLUSION n-3 FA supplementation in patients with CKD leads to increased neutrophil release of LTB5 and several SPM, as well as a reduction in plasma MPO that may have important implications for limiting chronic inflammation.
Collapse
Affiliation(s)
- Anne E Barden
- Medical School, University of Western Australia, Australia.
| | - Sujata Shinde
- Medical School, University of Western Australia, Australia
| | - Valerie Burke
- Medical School, University of Western Australia, Australia
| | - Ian B Puddey
- Medical School, University of Western Australia, Australia
| | | | - Ashley B Irish
- Department of Nephrology and Transplantation, Fiona Stanley Hospital, Perth, Western Australia, Australia
| | - Gerald F Watts
- Medical School, University of Western Australia, Australia
| | - Trevor A Mori
- Medical School, University of Western Australia, Australia
| |
Collapse
|
44
|
Taşlı NG, Uçak T, Karakurt Y, Keskin Çimen F, Özbek Bilgin A, Kurt N, Süleyman H. The effects of rutin on cisplatin induced oxidative retinal and optic nerve injury: an experimental study. Cutan Ocul Toxicol 2018; 37:252-257. [DOI: 10.1080/15569527.2018.1442842] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Nurdan Gamze Taşlı
- Department of Ophthalmology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| | - Turgay Uçak
- Department of Ophthalmology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| | - Yücel Karakurt
- Department of Ophthalmology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| | - Ferda Keskin Çimen
- Department of Pathology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| | - Aslı Özbek Bilgin
- Department of Pharmacology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| | - Nezahat Kurt
- Department of Biochemistry, College of Medicine, Atatürk University Hospital, Erzurum, Turkey
| | - Halis Süleyman
- Department of Pharmacology, College of Medicine, Erzincan University Hospital, Erzincan, Turkey
| |
Collapse
|
45
|
The Ontogeny of a Neutrophil: Mechanisms of Granulopoiesis and Homeostasis. Microbiol Mol Biol Rev 2018; 82:82/1/e00057-17. [PMID: 29436479 DOI: 10.1128/mmbr.00057-17] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Comprising the majority of leukocytes in humans, neutrophils are the first immune cells to respond to inflammatory or infectious etiologies and are crucial participants in the proper functioning of both innate and adaptive immune responses. From their initial appearance in the liver, thymus, and spleen at around the eighth week of human gestation to their generation in large numbers in the bone marrow at the end of term gestation, the differentiation of the pluripotent hematopoietic stem cell into a mature, segmented neutrophil is a highly controlled process where the transcriptional regulators C/EBP-α and C/EBP-ε play a vital role. Recent advances in neutrophil biology have clarified the life cycle of these cells and revealed striking differences between neonatal and adult neutrophils based on fetal maturation and environmental factors. Here we detail neutrophil ontogeny, granulopoiesis, and neutrophil homeostasis and highlight important differences between neonatal and adult neutrophil populations.
Collapse
|
46
|
Ananthi S, Gayathri V, Malarvizhi R, Bhardwaj M, Vasanthi HR. Anti-arthritic potential of marine macroalgae Turbinaria ornata in Complete Freund's Adjuvant induced rats. EXPERIMENTAL AND TOXICOLOGIC PATHOLOGY : OFFICIAL JOURNAL OF THE GESELLSCHAFT FUR TOXIKOLOGISCHE PATHOLOGIE 2017; 69:672-680. [PMID: 28684087 DOI: 10.1016/j.etp.2017.06.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 04/22/2017] [Accepted: 06/19/2017] [Indexed: 01/05/2023]
Abstract
T. ornata a macroalgae rich in bioactive molecules possess various biological activities. Herein, the aim of the study is to evaluate the aqueous extract and the sulphated polysaccharide isolated from T. ornata for its anti-arthritic potential in Complete Freund's Adjuvant (CFA) induced arthritis in rats. Anti-arthritic potential of aqueous T. ornata (ATO) and T. ornata sulphated polysaccharide (TSP) was evidenced by the significant reduction in paw volume and arthritic score. Inflammatory and antioxidant markers were found to be restored in the drug treated groups which was found to be in line with dexamethasone a standard anti-inflammatory drug. The histopathological and radiological examination adds on the support to the above findings confirming the anti-arthritic potential of ATO and TSP. It is interesting to note that the sulphated polysaccharide inhibits inflammation and bone damage at very low dose itself. Hence, TSP could be considered as a better candidate in the management of chronic inflammatory diseases like rheumatoid arthritis.
Collapse
Affiliation(s)
- S Ananthi
- Herbal and Indian Medicine Research Laboratory, Department of Biochemistry, Sri Ramachandra University, Porur, Chennai 600 116, India
| | - V Gayathri
- Herbal and Indian Medicine Research Laboratory, Department of Biochemistry, Sri Ramachandra University, Porur, Chennai 600 116, India
| | - R Malarvizhi
- Natural Products Research Laboratory, Department of Biotechnology, Pondicherry University, Puducherry 605014, India
| | - Meenakshi Bhardwaj
- Natural Products Research Laboratory, Department of Biotechnology, Pondicherry University, Puducherry 605014, India
| | - Hannah R Vasanthi
- Herbal and Indian Medicine Research Laboratory, Department of Biochemistry, Sri Ramachandra University, Porur, Chennai 600 116, India; Natural Products Research Laboratory, Department of Biotechnology, Pondicherry University, Puducherry 605014, India.
| |
Collapse
|
47
|
Njunge JM, Oyaro IN, Kibinge NK, Rono MK, Kariuki SM, Newton CR, Berkley JA, Gitau EN. Cerebrospinal fluid markers to distinguish bacterial meningitis from cerebral malaria in children. Wellcome Open Res 2017; 2:47. [PMID: 29181450 PMCID: PMC5686508 DOI: 10.12688/wellcomeopenres.11958.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2017] [Indexed: 12/23/2022] Open
Abstract
Background. Few hospitals in high malaria endemic countries in Africa have the diagnostic capacity for clinically distinguishing acute bacterial meningitis (ABM) from cerebral malaria (CM). As a result, empirical use of antibiotics is necessary. A biochemical marker of ABM would facilitate precise clinical diagnosis and management of these infections and enable rational use of antibiotics. Methods. We used label-free protein quantification by mass spectrometry to identify cerebrospinal fluid (CSF) markers that distinguish ABM (n=37) from CM (n=22) in Kenyan children. Fold change (FC) and false discovery rates (FDR) were used to identify differentially expressed proteins. Subsequently, potential biomarkers were assessed for their ability to discriminate between ABM and CM using receiver operating characteristic (ROC) curves. Results. The host CSF proteome response to ABM ( Haemophilusinfluenza and Streptococcuspneumoniae) is significantly different to CM. Fifty two proteins were differentially expressed (FDR<0.01, Log FC≥2), of which 83% (43/52) were upregulated in ABM compared to CM. Myeloperoxidase and lactotransferrin were present in 37 (100%) and 36 (97%) of ABM cases, respectively, but absent in CM (n=22). Area under the ROC curve (AUC), sensitivity, and specificity were assessed for myeloperoxidase (1, 1, and 1; 95% CI, 1-1) and lactotransferrin (0.98, 0.97, and 1; 95% CI, 0.96-1). Conclusion. Myeloperoxidase and lactotransferrin have a high potential to distinguish ABM from CM and thereby improve clinical management. Their validation requires a larger cohort of samples that includes other bacterial aetiologies of ABM.
Collapse
Affiliation(s)
- James M Njunge
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya
| | - Ian N Oyaro
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya.,University of Nairobi, Nairobi, Kenya
| | - Nelson K Kibinge
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya
| | - Martin K Rono
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya.,Pwani University Health and Research Institute, Pwani University, Kilifi, Kenya
| | - Symon M Kariuki
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya
| | - Charles R Newton
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya.,Department of Psychiatry, Medical Sciences Division, University of Oxford, Oxford, OX3 7JX, UK
| | - James A Berkley
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya.,Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, OX3 7FZ, UK
| | - Evelyn N Gitau
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research Coast, Kilifi, Kenya.,Alliance for Accelerating Excellence in Science in Africa (AESA), Nairobi, Kenya
| |
Collapse
|
48
|
Cruz-Baquero A, Cárdenas Jaramillo LM, Gutiérrez-Meza M, Jarillo-Luna RA, Campos-Rodríguez R, Rivera-Aguilar V, Miliar-García A, Pacheco-Yepez J. Different behavior of myeloperoxidase in two rodent amoebic liver abscess models. PLoS One 2017; 12:e0182480. [PMID: 28796788 PMCID: PMC5552100 DOI: 10.1371/journal.pone.0182480] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 07/19/2017] [Indexed: 12/11/2022] Open
Abstract
The protozoan Entamoeba histolytica is the etiological agent of amoebiasis, which can spread to the liver and form amoebic liver abscesses. Histological studies conducted with resistant and susceptible models of amoebic liver abscesses (ALAs) have established that neutrophils are the first cells to contact invasive amoebae at the lesion site. Myeloperoxidase is the most abundant enzyme secreted by neutrophils. It uses hydrogen peroxide secreted by the same cells to oxidize chloride ions and produce hypochlorous acid, which is the most efficient microbicidal system of neutrophils. In a previous report, our group demonstrated that myeloperoxidase presents amoebicidal activity in vitro. The aim of the current contribution was to analyze in vivo the role of myeloperoxidase in a susceptible (hamsters) and resistant (Balb/c mice) animal models of ALAs. In liver samples of hamsters and mice inoculated intraportally with Entamoeba histolytica trophozoites, the number of neutrophils in ALAs was determined by enzymatic activity. The presence of myeloperoxidase was observed by staining, and its expression and activity were quantified in situ. A significant difference existed between the two animal models in the number of neutrophils and the expression and activity of myeloperoxidase, which may explain the distinct evolution of amoebic liver abscesses. Hamsters and mice were treated with an MPO inhibitor (4-aminobenzoic acid hydrazide). Hamsters treated with ABAH showed no significant differences in the percentage of lesions or in the percentage of amoebae damaged compared with the untreated hamsters. ABAH treated mice versus untreated mice showed larger abscesses and a decreased percentage of damaged amoebae in these lesion at all stages of evolution. Further studies are needed to elucidate the host and amoebic mechanisms involved in the adequate or inadequate activation and modulation of myeloperoxidase.
Collapse
Affiliation(s)
- Andrea Cruz-Baquero
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Luz María Cárdenas Jaramillo
- Coordinación de Ciencias Morfológicas, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Manuel Gutiérrez-Meza
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
- Coordinación de Ciencias Morfológicas, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Rosa Adriana Jarillo-Luna
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
- Coordinación de Ciencias Morfológicas, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Rafael Campos-Rodríguez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Víctor Rivera-Aguilar
- Departamento de Microbiología, UBIPRO, FES-Iztacala, UNAM, CP, Tlanepantla, Estado de México, México
| | - Angel Miliar-García
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
| | - Judith Pacheco-Yepez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luís y Díaz Mirón, CP, Ciudad de México, México
- * E-mail:
| |
Collapse
|
49
|
Yang WJ, Wang MY, Pan FZ, Shi C, Cen H. Association between MPO-463G > A polymorphism and cancer risk: evidence from 60 case-control studies. World J Surg Oncol 2017; 15:144. [PMID: 28764808 PMCID: PMC5539634 DOI: 10.1186/s12957-017-1183-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 06/22/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Though a number of studies have been conducted to explore the association between myeloperoxidase (MPO)-463G > A polymorphism and cancer risk, the results remain inconsistent. Therefore, we performed a meta-analysis to derive a more systematic estimation of this relationship. METHOD Relevant studies were searched by PubMed, EMBASE, CNKI, Google Scholar, Ovid, and Cochrane library prior to December 2015. The strength of the association between MPO-463G > A polymorphism and cancer risk was estimated by odds ratios (OR) with 95% confidence interval (95%CI). Cumulative analysis was used to evaluate the stability of results through time. RESULTS The current analysis consisted of 16,858 cases and 21,756 controls from 60 studies. Pooled results showed that MPO-463G > A polymorphism were associated with the overall decreased cancer susceptibility in all the genetic models included in this study (additive model: OR = 0.84, 95%CI = 0.76-0.94; allele genetic model: OR = 0.90, 95%CI = 0.840-0.954; recessive genetic model: OR = 0.89, 95%CI = 0.83-0.95). However, in the stratified analysis of cancer type, the significant results were only found in lung cancer (dominant model: OR = 0.93, 95%CI = 0.87-0.99) and digestive system cancer groups (dominant model: OR = 0.67 0.53-0.84; allele frequency model = 0.71, 95%CI = 0.57-0.87), but not in the blood system cancer or breast cancer group. When we further stratified the digestive system cancer group into digestive tract and digestive gland cancer groups, results showed a significant association between allele A of MPO-463G > A and digestive gland cancer in all the genetic models (allele frequency model: OR = 0.63, 95%CI = 0.40-0.99; additive model: OR = 0.41, 95%CI = 0.23-0.73; recessive model: OR = 0.51, 95%CI = 0.29-0.89; dominant model: OR = 0.58, 95%CI = 0.35-0.96), digestive tract cancers in allele frequency model (OR = 0.75, 95%CI = 0.59-0.95), and dominant model (OR = 0.72, 95%CI = 0.56-0.92). When stratified by ethnicity, results demonstrated that the genotype A might be a protect factor for both Caucasians and Asians. In group analysis according to source of controls, significant results were found in population from hospital in all the genetic models. In cumulative analysis, result of allele contrast showed a declining trend and increasingly narrower 95% overall, while the inclination toward non-significant association with lung cancer risk. CONCLUSIONS This meta-analysis suggested that MPO-463G > A polymorphism was associated with the overall reduced cancer susceptibility significantly. It might be a more reliable predictor of digestive system cancer instead of lung cancer, blood system cancer, and breast cancer. In cumulative analysis, the stable trend indicated that evidence was sufficient to show the association between MPO-463G > A polymorphism and cancer risk.
Collapse
Affiliation(s)
- Wen-Jun Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Gui Lin, 541100, China
| | - Ming-Yue Wang
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Fu-Ze Pan
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Chen Shi
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Hong Cen
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
| |
Collapse
|
50
|
Silva AD, Bottari NB, do Carmo GM, Baldissera MD, Souza CF, Machado VS, Morsch VM, Schetinger MRC, Mendes RE, Monteiro SG, Da Silva AS. Chagas disease: modulation of the inflammatory response by acetylcholinesterase in hematological cells and brain tissue. Mol Cell Biochem 2017; 438:59-65. [DOI: 10.1007/s11010-017-3113-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 07/01/2017] [Indexed: 10/19/2022]
|