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Hossen F, Geng X, Sun GY, Yao X, Lee JC. Oligomeric Amyloid-β and Tau Alter Cell Adhesion Properties and Induce Inflammatory Responses in Cerebral Endothelial Cells Through the RhoA/ROCK Pathway. Mol Neurobiol 2024:10.1007/s12035-024-04138-z. [PMID: 38561558 DOI: 10.1007/s12035-024-04138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Dysfunction of cerebral endothelial cells (CECs) has been implicated in the pathology of Alzheimer's disease (AD). Despite evidence showing cytotoxic effects of oligomeric amyloid-β (oAβ) and Tau (oTau) in the central nervous system, their direct effects on CECs have not been fully investigated. In this study, we examined the direct effects of oAβ, oTau, and their combination on cell adhesion properties and inflammatory responses in CECs. We found that both oAβ and oTau increased cell stiffness, as well as the p-selectin/Sialyl-LewisX (sLeX) bonding-mediated membrane tether force and probability of adhesion in CECs. Consistent with these biomechanical alterations, treatments with oAβ or oTau also increased actin polymerization and the expression of p-selectin at the cell surface. These toxic oligomeric peptides also triggered inflammatory responses, including upregulations of p-NF-kB p65, IL-1β, and TNF-α. In addition, they rapidly activated the RhoA/ROCK pathway. These biochemical and biomechanical changes were further enhanced by the treatment with the combination of oAβ and oTau, which were significantly suppressed by Fasudil, a specific inhibitor for the RhoA/ROCK pathway. In conclusion, our data suggest that oAβ, oTau, and their combination triggered subcellular mechanical alterations and inflammatory responses in CECs through the RhoA/ROCK pathway.
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Affiliation(s)
- Faruk Hossen
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Xue Geng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Xincheng Yao
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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Wu Y, Tang BL, Song KD, Sun GY, Pan TZ, Huang AJ, Yan BB, Zhu XY. [Single non-blood-related umbilical cord blood transplantation using a reduced-intensity conditioning regimen for the treatment of severe aplastic anemia]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:68-73. [PMID: 38527841 DOI: 10.3760/cma.j.issn.0253-2727.121090-20230928-00146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To evaluated the clinical efficacy of a reduced-intensity preconditioning regimen for single non-blood-related umbilical cord blood transplantation (sUCBT) in the treatment of severe aplastic anemia (SAA) . Methods: The clinical data of 63 patients with SAA who underwent sUCBT from January 2021 to July 2023 at the Department of Hematology of the First Affiliated Hospital of USTC were retrospectively analyzed. Fifty-two patients received total body irradiation/total bone marrow irradiation (TMI) combined with fludarabine or a cyclophosphamide- conditioning regimen (non-rATG group) , while 11 patients received rabbit anti-human thymocyte immunoglobulin (rATG) combined with TMI, fludarabine, or the cyclophosphamide-conditioning regimen (rATG group) . All patients received cyclosporine A and mycophenolate mofetil for graft-versus-host disease (GVHD) prophylaxis. Complications post-transplantation and long-term survival were compared between the two groups. Results: The baseline parameters were balanced between the two groups (P>0.05) . In the rATG group, all patients achieved stem cell engraftment, and in the non-rATG group, five patients had primary graft failure. There was no significant difference in the cumulative incidence of neutrophil engraftment at 42 days after transplantation or platelet engraftment at 60 days between the two groups. The incidence of grade Ⅱ-Ⅳ acute GVHD in the rATG group was significantly lower than in the non-rATG group (10.0% vs. 46.2% , P=0.032) , and the differences in the cumulative incidences of grade Ⅲ/Ⅳ acute GVHD and 1-year chronic GVHD were not statistically significant (P=0.367 and P=0.053, respectively) . There were no significant differences in the incidences of pre-engraftment syndrome, bacterial bloodstream infections, cytomegalovirus viremia, or hemorrhagic cystitis between the two groups (P>0.05 for all) . The median follow-up time for surviving patients was 536 (61-993) days, and the 1-year transplantation related mortality (TRM) of all patients after transplantation was 13.0% (95% CI 6.7% -24.3% ) . Among the patients in the non-rATG and rATG groups, 15.5% (95% CI 8.1% -28.6% ) and 0% (P=0.189) , respectively, had mutations. The 1-year overall survival (OS) rate of all patients after transplantation was 87.0% (95% CI 75.7% -93.3% ) . The 1-year OS rates in the rATG group and non-rATG group after transplantation were 100% and 84.5% , respectively (95% CI 71.4% -91.9% ) (P=0.198) . Conclusion: The preliminary results of sUCBT with a low-dose irradiation-based reduced-intensity conditioning regimen with fludarabine/cyclophosphamide for the treatment of patients with SAA showed good efficacy. Early application of low-dose rATG can reduce the incidence of acute GVHD after transplantation without increasing the risk of implantation failure or infection.
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Affiliation(s)
- Y Wu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - B L Tang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - K D Song
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - G Y Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - T Z Pan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - A J Huang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - B B Yan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - X Y Zhu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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Sun GY, Edwards DM, Miller SR, Elliott DA, Hamstra DA, Chen AC, Green M, Bryant AK. Association of Proton Pump Inhibitor Use and Severe Pneumonitis in Stage III Non-Small-Cell Lung Cancer Treated with Primary Chemoradiation and Adjuvant Durvalumab. Int J Radiat Oncol Biol Phys 2023; 117:e61. [PMID: 37785836 DOI: 10.1016/j.ijrobp.2023.06.780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Prior studies have suggested gut microbiome changes induced by long-term acid-reducing medication use could modulate immunotherapy efficacy and toxicity. We assessed the relationship between baseline acid-reducing medication use (proton pump inhibitors [PPI] or H2 antagonists [H2A]) on treatment-related toxicity and efficacy in a large cohort of stage III non-small-cell lung cancer (NSCLC) patients treated with or without immunotherapy. MATERIALS/METHODS Patients with unresectable stage III NSCLC treated with primary concurrent chemoradiation with or without adjuvant durvalumab from 2015 to 2021 were identified in the Veterans Affairs (VA) system. We defined baseline acid-reducing medication use with VA and non-VA pharmacy records in the year prior to radiation start; the number of prescriptions and the cumulative duration of therapy were quantified. Using multivariable Cox models adjusting for potential baseline confounders and stratified by adjuvant durvalumab use, we estimated the association between PPI or H2A use and subsequent severe pneumonitis, progression-free survival, and overall survival. Pneumonitis was determined and graded by manual chart review. RESULTS We included 1994 patients with stage III NSCLC treated with primary chemoradiation, of whom 1005 (50%) received adjuvant durvalumab, 1064 (53%) received any PPI and 1030 (52%) received any H2A. In the overall sample, baseline use of any PPI was associated with increased risk of grade 3-5 pneumonitis (adjusted hazard ratio [aHR] 1.53, 95% CI 1.12-2.10, p = 0.008) and was found to be significant only in durvalumab-treated patients (aHR 1.67, 95% CI 1.10-2.54, p = 0.016), but not for patients treated without durvalumab (aHR 1.34, 95% CI 0.82-2.20, p = 0.2). Higher number of PPI prescriptions were associated with increased risk of severe pneumonitis (aHR 1.38 per 5 prescriptions, 95% CI 1.03-1.85, p = 0.03) and longer duration of PPIs trended toward significance (aHR 1.04 per 90 days, 95% CI 1.00-1.09, p = 0.066). Any PPI use was associated with worse OS in durvalumab-treated patients (aHR 1.30, 95% CI 1.05-1.61, p = 0.016) but not for patients without durvalumab use (aHR 0.99, 95% CI 0.86-1.14, p = 0.9). PPI use had no association with progression-free survival in either cohort. No significant associations between baseline H2A use and pneumonitis, PFS, or OS in either cohort were seen. CONCLUSION PPIs, but not H2As, are associated with increased risk of treatment-related pneumonitis and inferior OS in stage III NSCLC patients treated with chemoradiation and immunotherapy. This association was not observed among patients treated with chemoradiation alone. No association was found between PPI use and cancer progression. Further work is warranted to confirm these findings in other immunotherapy-treated cohorts.
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Affiliation(s)
- G Y Sun
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - D M Edwards
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - S R Miller
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - D A Elliott
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - D A Hamstra
- Department of Radiation Oncology, Baylor College of Medicine, Houston, TX
| | - A C Chen
- Department of Radiation Oncology, Baylor College of Medicine, Houston, TX; Department of Radiation Oncology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
| | - M Green
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - A K Bryant
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI; Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
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Su S, Mayo C, Rosen BS, Covington E, Zhang Z, Bryant AK, Allen SG, Morales Rivera KA, Edwards DM, Takayesu J, Herr DJ, Miller SR, Regan SN, Dykstra MP, Sun GY, Elaimy AL, Mierzwa ML. Use of Explainable AI Algorithm Revealing Longitudinal Changes in Practice Patterns and Toxicity Models. Int J Radiat Oncol Biol Phys 2023; 117:e628. [PMID: 37785877 DOI: 10.1016/j.ijrobp.2023.06.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Dosimetric constraints evolve as clinicians implement practice changes, requiring modeling approaches to be dynamic. We applied a semi-automated explainable artificial intelligence (eAI) algorithm and dashboard visualizations to model dysphagia and xerostomia for head and neck cancer patients. We coupled a large, comprehensive, "real-world" database to the eAI for discovery of features with the strongest combined statistical and machine learning based evidence and to identify clinically actionable thresholds. MATERIALS/METHODS Cohort included 758 patients treated 2017-2021 for HN cancer with conventional fractionation. Features included age, sex, diagnosis, staging, chemotherapy, smoking and alcohol status, BMI, weight loss, re-simulation, DVH curves, PTV and OAR volumes. Patients were scored for toxicity within 2 yrs of RT for dysphagia grade ≥ 3 and xerostomia grade ≥ 2. Bootstrap resampling of thresholds, ROC-AUC, PR-ROC, SN, SP, F1 and diagnostic odds ratio was used to statistically profile strength of evidence for candidate features. XGBoost models with 10-fold cross validation were repeated (n = 20) to identify mean and CIs for statistical measures of predictions. DVH metrics included standard template values and those with highest statistical evidence and low cross correlation with other features. Backward feature selection was used to identify the most relevant feature subset, where the least informative feature is iteratively removed from the model. This workflow was repeated by year and overall. RESULTS Annual incidence of dysphagia averaged 0.13 ± 0.02 overall years. Xerostomia incidence decreased from 0.32 to 0.12 (2017-2021). Box-whisker plots by year showed consistent reductions in standard practice toxicity linked DVH metric values. Median dose to superior constrictors (PCM), contralateral parotid and contralateral submandibular gland (SMG) declined from 2017 to 2021 by 48 to 33 Gy, 17 to 10 Gy, and 28 to 22 Gy respectively. Statistics of XGBoost models of dysphagia for all years were ROC-AUC = 0.72 ± 0.05. Strongest overall years predictors were Oral Cavity (OC) D50%[Gy] < 32, inferior PCM Max [Gy] < 60, contralateral SMG D10%[Gy] < 53 and use of Paclitaxel. Xerostomia models were less predictive with ROC-AUC = 0.65 ± 0.05. Strongest predictors over each year were ipsilateral parotid D30%[Gy] < 35, contralateral SMG D96%[Gy] < 18.4, and overall staging < II. Predictive features varied substantially by year for both, showing the most consistency for SMG doses. For example, OC D50%[Gy] < 27 and contralateral SMG D96%[Gy] < 18 dominated xerostomia model in 2017 but not in 2021 when practice norms shifted to lower doses. CONCLUSION As OAR doses were systematically reduced, statistical and AI models evidence highlighted contralateral SMG dose as important to both dysphagia and xerostomia for clinical practice change. The "real-world" database + eAI + visualization dashboards provided a method for continuous learning as clinical practice changes.
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Affiliation(s)
- S Su
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - C Mayo
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - B S Rosen
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - E Covington
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - Z Zhang
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - A K Bryant
- Department of Radiation Oncology, Veterans Affairs Ann Arbor Health System, Ann Arbor, MI
| | - S G Allen
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | | | - D M Edwards
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - J Takayesu
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - D J Herr
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - S R Miller
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - S N Regan
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - M P Dykstra
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - G Y Sun
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - A L Elaimy
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - M L Mierzwa
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
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Mossine VV, Waters JK, Sun GY, Gu Z, Mawhinney TP. Microglia Signaling Pathway Reporters Unveiled Manganese Activation of the Interferon/STAT1 Pathway and Its Mitigation by Flavonoids. Mol Neurobiol 2023; 60:4679-4692. [PMID: 37140843 PMCID: PMC10293393 DOI: 10.1007/s12035-023-03369-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
Neuroinflammatory responses to neurotoxic manganese (Mn) in CNS have been associated with the Mn-induced Parkinson-like syndromes. However, the framework of molecular mechanisms contributing to manganism is still unclear. Using an in vitro neuroinflammation model based on the insulated signaling pathway reporter transposon constructs stably transfected into a murine BV-2 microglia line, we tested effects of manganese (II) together with a set of 12 metal salts on the transcriptional activities of the NF-κB, activator protein-1 (AP-1), signal transducer and activator of transcription 1 (STAT1), STAT1/STAT2, STAT3, Nrf2, and metal-responsive transcription factor-1 (MTF-1) via luciferase assay, while concatenated destabilized green fluorescent protein expression provided for simultaneous evaluation of cellular viability. This experiment revealed specific and strong responses to manganese (II) in reporters of the type I and type II interferon-induced signaling pathways, while weaker activation of the NF-κB in the microglia was detected upon treatment of cells with Mn(II) and Ba(II). There was a similarity between Mn(II) and interferon-γ in the temporal STAT1 activation profile and in their antagonism to bacterial LPS. Sixty-four natural and synthetic flavonoids differentially affected both cytotoxicity and the pro-inflammatory activity of Mn (II) in the microglia. Whereas flavan-3-ols, flavanones, flavones, and flavonols were cytoprotective, isoflavones enhanced the cytotoxicity of Mn(II). Furthermore, about half of the tested flavonoids at 10-50 μM could attenuate both basal and 100-200 μM Mn(II)-induced activity at the gamma-interferon activated DNA sequence (GAS) in the cells, suggesting no critical roles for the metal chelation or antioxidant activity in the protective potential of flavonoids against manganese in microglia. In summary, results of the study identified Mn as a specific elicitor of the interferon-dependent pathways that can be mitigated by dietary polyphenols.
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Affiliation(s)
- Valeri V Mossine
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA.
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA.
| | - James K Waters
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Thomas P Mawhinney
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA
- Department of Child Health, University of Missouri, Columbia, MO, 65211, USA
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Farooqui AA, Farooqui T, Sun GY, Lin TN, Teh DBL, Ong WY. COVID-19, Blood Lipid Changes, and Thrombosis. Biomedicines 2023; 11:biomedicines11041181. [PMID: 37189799 DOI: 10.3390/biomedicines11041181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
Although there is increasing evidence that oxidative stress and inflammation induced by COVID-19 may contribute to increased risk and severity of thromboses, the underlying mechanism(s) remain to be understood. The purpose of this review is to highlight the role of blood lipids in association with thrombosis events observed in COVID-19 patients. Among different types of phospholipases A2 that target cell membrane phospholipids, there is increasing focus on the inflammatory secretory phospholipase A2 IIA (sPLA2-IIA), which is associated with the severity of COVID-19. Analysis indicates increased sPLA2-IIA levels together with eicosanoids in the sera of COVID patients. sPLA2 could metabolise phospholipids in platelets, erythrocytes, and endothelial cells to produce arachidonic acid (ARA) and lysophospholipids. Arachidonic acid in platelets is metabolised to prostaglandin H2 and thromboxane A2, known for their pro-coagulation and vasoconstrictive properties. Lysophospholipids, such as lysophosphatidylcholine, could be metabolised by autotaxin (ATX) and further converted to lysophosphatidic acid (LPA). Increased ATX has been found in the serum of patients with COVID-19, and LPA has recently been found to induce NETosis, a clotting mechanism triggered by the release of extracellular fibres from neutrophils and a key feature of the COVID-19 hypercoagulable state. PLA2 could also catalyse the formation of platelet activating factor (PAF) from membrane ether phospholipids. Many of the above lipid mediators are increased in the blood of patients with COVID-19. Together, findings from analyses of blood lipids in COVID-19 patients suggest an important role for metabolites of sPLA2-IIA in COVID-19-associated coagulopathy (CAC).
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Affiliation(s)
- Akhlaq A Farooqui
- Department of Molecular and Cellular Biochemistry, Ohio State University, Columbus, OH 43210, USA
| | - Tahira Farooqui
- Department of Molecular and Cellular Biochemistry, Ohio State University, Columbus, OH 43210, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - Teng-Nan Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11929, Taiwan
| | - Daniel B L Teh
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119260, Singapore
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119260, Singapore
- Neurobiology Research Programme, Life Sciences Institute, National University of Singapore, Singapore 119260, Singapore
| | - Wei-Yi Ong
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119260, Singapore
- Neurobiology Research Programme, Life Sciences Institute, National University of Singapore, Singapore 119260, Singapore
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Ong WY, Herr DR, Sun GY, Lin TN. Anti-Inflammatory Effects of Phytochemical Components of Clinacanthus nutans. Molecules 2022; 27:molecules27113607. [PMID: 35684542 PMCID: PMC9182488 DOI: 10.3390/molecules27113607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 02/01/2023] Open
Abstract
Recent studies on the ethnomedicinal use of Clinacanthus nutans suggest promising anti-inflammatory, anti-tumorigenic, and antiviral properties for this plant. Extraction of the leaves with polar and nonpolar solvents has yielded many C-glycosyl flavones, including schaftoside, isoorientin, orientin, isovitexin, and vitexin. Aside from studies with different extracts, there is increasing interest to understand the properties of these components, especially regarding their ability to exert anti-inflammatory effects on cells and tissues. A major focus for this review is to obtain information on the effects of C. nutans extracts and its phytochemical components on inflammatory signaling pathways in the peripheral and central nervous system. Particular emphasis is placed on their role to target the Toll-like receptor 4 (TLR4)-NF-kB pathway and pro-inflammatory cytokines, the antioxidant defense pathway involving nuclear factor erythroid-2-related factor 2 (NRF2) and heme oxygenase 1 (HO-1); and the phospholipase A2 (PLA2) pathway linking to cyclooxygenase-2 (COX-2) and production of eicosanoids. The ability to provide a better understanding of the molecular targets and mechanism of action of C. nutans extracts and their phytochemical components should encourage future studies to develop new therapeutic strategies for better use of this herb to combat inflammatory diseases.
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Affiliation(s)
- Wei-Yi Ong
- Department of Anatomy and Neurobiology Research Programme, National University of Singapore, Singapore 119260, Singapore
- Correspondence:
| | - Deron R. Herr
- Department of Pharmacology, National University of Singapore, Singapore 119260, Singapore;
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA;
| | - Teng-Nan Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan;
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Crous PW, Sandoval-Denis M, Costa MM, Groenewald JZ, van Iperen AL, Starink-Willemse M, Hernández-Restrepo M, Kandemir H, Ulaszewski B, de Boer W, Abdel-Azeem AM, Abdollahzadeh J, Akulov A, Bakhshi M, Bezerra JDP, Bhunjun CS, Câmara MPS, Chaverri P, Vieira WAS, Decock CA, Gaya E, Gené J, Guarro J, Gramaje D, Grube M, Gupta VK, Guarnaccia V, Hill R, Hirooka Y, Hyde KD, Jayawardena RS, Jeewon R, Jurjević Ž, Korsten L, Lamprecht SC, Lombard L, Maharachchikumbura SSN, Polizzi G, Rajeshkumar KC, Salgado-Salazar C, Shang QJ, Shivas RG, Summerbell RC, Sun GY, Swart WJ, Tan YP, Vizzini A, Xia JW, Zare R, González CD, Iturriaga T, Savary O, Coton M, Coton E, Jany JL, Liu C, Zeng ZQ, Zhuang WY, Yu ZH, Thines M. Fusarium and allied fusarioid taxa (FUSA). 1. Fungal Syst Evol 2022; 9:161-200. [PMID: 35978986 PMCID: PMC9355104 DOI: 10.3114/fuse.2022.09.08] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/14/2022] [Indexed: 11/07/2022] Open
Abstract
Seven Fusarium species complexes are treated, namely F. aywerte species complex (FASC) (two species), F. buharicum species complex (FBSC) (five species), F. burgessii species complex (FBURSC) (three species), F. camptoceras species complex (FCAMSC) (three species), F. chlamydosporum species complex (FCSC) (eight species), F. citricola species complex (FCCSC) (five species) and the F. concolor species complex (FCOSC) (four species). New species include Fusicolla elongata from soil (Zimbabwe), and Neocosmospora geoasparagicola from soil associated with Asparagus officinalis (Netherlands). New combinations include Neocosmospora akasia, N. awan, N. drepaniformis, N. duplosperma, N. geoasparagicola, N. mekan, N. papillata, N. variasi and N. warna. Newly validated taxa include Longinectria gen. nov., L. lagenoides, L. verticilliforme, Fusicolla gigas and Fusicolla guangxiensis. Furthermore, Fusarium rosicola is reduced to synonymy under N. brevis. Finally, the genome assemblies of Fusarium secorum (CBS 175.32), Microcera coccophila (CBS 310.34), Rectifusarium robinianum (CBS 430.91), Rugonectria rugulosa (CBS 126565), and Thelonectria blattea (CBS 952.68) are also announced here. Citation: Crous PW, Sandoval-Denis M, Costa MM, Groenewald JZ, van Iperen AL, Starink-Willemse M, Hernández-Restrepo M, Kandemir H, Ulaszewski B, de Boer W, Abdel-Azeem AM, Abdollahzadeh J, Akulov A, Bakhshi M, Bezerra JDP, Bhunjun CS, Câmara MPS, Chaverri P, Vieira WAS, Decock CA, Gaya E, Gené J, Guarro J, Gramaje D, Grube M, Gupta VK, Guarnaccia V, Hill R, Hirooka Y, Hyde KD, Jayawardena RS, Jeewon R, Jurjević Ž, Korsten L, Lamprecht SC, Lombard L, Maharachchikumbura SSN, Polizzi G, Rajeshkumar KC, Salgado-Salazar C, Shang Q-J, Shivas RG, Summerbell RC, Sun GY, Swart WJ, Tan YP, Vizzini A, Xia JW, Zare R, González CD, Iturriaga T, Savary O, Coton M, Coton E, Jany J-L, Liu C, Zeng Z-Q, Zhuang W-Y, Yu Z-H, Thines M (2022). Fusarium and allied fusarioid taxa (FUSA). 1. Fungal Systematics and Evolution 9: 161-200. doi: 10.3114/fuse.2022.09.08.
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Affiliation(s)
- P W Crous
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Wageningen University and Research Centre (WUR), Laboratory of Phytopathology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - M Sandoval-Denis
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - M M Costa
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - J Z Groenewald
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - A L van Iperen
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - M Starink-Willemse
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - M Hernández-Restrepo
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - H Kandemir
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - B Ulaszewski
- Senckenberg Biodiversity and Climate Research Center, Senckenberganlage 25, D-60325 Frankfurt am Main, Germany
| | - W de Boer
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.,Soil Biology Group, Wageningen University, Wageningen, Netherlands
| | - A M Abdel-Azeem
- Systematic Mycology Lab., Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - J Abdollahzadeh
- Department of Plant Protection, Faculty of Agriculture, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - A Akulov
- Department of Mycology and Plant Resistance, V. N. Karazin Kharkiv National University, Maidan Svobody 4, 61022 Kharkiv, Ukraine
| | - M Bakhshi
- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 19395-1454, Tehran, Iran
| | - J D P Bezerra
- Setor de Micologia / Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Rua 235 - s/n - Setor Universitário - CEP: 74605-050, Universidade Federal de Goiás / Federal University of Goiás, Goiânia, Brasil / Goiânia, Brazil
| | - C S Bhunjun
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - M P S Câmara
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, 52171-900, PE, Brazil
| | - P Chaverri
- Escuela de Biología and Centro de Investigaciones en Productos Naturales, Universidad de Costa Rica, San Pedro, Costa Rica
| | - W A S Vieira
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, 52171-900, PE, Brazil
| | - C A Decock
- Mycothèque de l'Université catholique de Louvain (MUCL, BCCMTM), Earth and Life Institute - ELIM - Mycology, Université catholique de Louvain, Croix du Sud 2 bte L7.05.06, B-1348 Louvain-la-Neuve, Belgium
| | - E Gaya
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - J Gené
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut i Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, 43201 Reus, Spain
| | - J Guarro
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut i Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, 43201 Reus, Spain
| | - D Gramaje
- Institute of Grapevine and Wine Sciences (ICVV), Spanish National Research Council (CSIC)-University of La Rioja-Government of La Rioja, Logroño 26007, Spain
| | - M Grube
- Institut für Biologie, Karl-Franzens-Universität Graz, Holteigasse 6, 8010 Graz, Austria
| | - V K Gupta
- Center for Safe and Improved Food, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK.,Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK
| | - V Guarnaccia
- Department of Agricultural, Forestry and Food Sciences (DISAFA), University of Torino, Largo P. Braccini 2, 10095 Grugliasco (TO), Italy
| | - R Hill
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - Y Hirooka
- Department of Clinical Plant Science, Faculty of Bioscience, Hosei University3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - K D Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - R S Jayawardena
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - R Jeewon
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Reduit, Mauritius
| | - Ž Jurjević
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077, USA
| | - L Korsten
- Department of Plant and Soil Sciences, University of Pretoria, P. Bag X20 Hatfield, Pretoria 0002, South Africa
| | - S C Lamprecht
- ARC-Plant Health and Protection, Private Bag X5017, Stellenbosch 7599, Western Cape, South Africa
| | - L Lombard
- Dutch General Inspection Service for agricultural seeds and seed potatoes (NAK), Randweg 14, 8304 AS, Emmeloord, The Netherlands
| | - S S N Maharachchikumbura
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
| | - G Polizzi
- Dipartimento di Agricoltura, Alimentazione e Ambiente, sez. Patologia vegetale, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - K C Rajeshkumar
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology (Fungi) Group, Agharkar Research Institute, Pune, Maharashtra 411 004, India
| | - C Salgado-Salazar
- USDA-ARS Mycology & Nematology Genetic Diversity & Biology Laboratory, Bldg. 010A, Rm. 212, BARC-West, 10300 Baltimore Ave. Beltsville, MD 20705, USA
| | - Q-J Shang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.,School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
| | - R G Shivas
- Centre for Crop Health, University of Southern Queensland, Toowoomba 4350, Queensland, Australia
| | - R C Summerbell
- Sporometrics, Toronto, ON, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - G Y Sun
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - W J Swart
- Faculty of Natural and Agricultural Sciences, Department of Plant Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Y P Tan
- Centre for Crop Health, University of Southern Queensland, Toowoomba 4350, Queensland, Australia.,Queensland Plant Pathology Herbarium, Department of Agriculture and Fisheries, Dutton Park, Queensland 4102, Australia
| | - A Vizzini
- Department of Life Sciences and Systems Biology, University of Torino and Institute for Sustainable Plant Protection (IPSP-SS Turin), C.N.R, Viale P.A. Mattioli, 25, I-10125 Torino, Italy
| | - J W Xia
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, China
| | - R Zare
- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 19395-1454, Tehran, Iran
| | - C D González
- Lab. Salud de Bosques, Fac. de Ciencias Forestales y RRNN, Universidad Austral de Chile, Chile
| | - T Iturriaga
- Curator, Cornell University Plant Pathology Herbarium, Ithaca, NY, USA
| | - O Savary
- Univ Brest, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, F-29280 Plouzané, France
| | - M Coton
- Univ Brest, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, F-29280 Plouzané, France
| | - E Coton
- Univ Brest, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, F-29280 Plouzané, France
| | - J-L Jany
- Univ Brest, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, F-29280 Plouzané, France
| | - C Liu
- College of Life Sciences, Yangtze University, Jingzhou, Hubei 434025, China
| | - Z-Q Zeng
- College of Life Sciences, Yangtze University, Jingzhou, Hubei 434025, China.,State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - W-Y Zhuang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Z-H Yu
- College of Life Sciences, Yangtze University, Jingzhou, Hubei 434025, China
| | - M Thines
- Senckenberg Biodiversity and Climate Research Center, Senckenberganlage 25, D-60325 Frankfurt am Main, Germany.,Goethe-University Frankfurt am Main, Department of Biological Sciences, Institute of Ecology, Evolution and Diversity, Max-von-Laue Str. 13, D-60438 Frankfurt am Main, Germany.,LOEWE Centre for Translational Biodiversity Genomics, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany
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9
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Geng X, Galano JM, Oger C, Sun GY, Durand T, Lee JC. Neuroprotective effects of DHA-derived peroxidation product 4(RS)-4-F4t-neuroprostane on microglia. Free Radic Biol Med 2022; 185:1-5. [PMID: 35447333 PMCID: PMC10150398 DOI: 10.1016/j.freeradbiomed.2022.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/01/2022] [Accepted: 04/03/2022] [Indexed: 10/18/2022]
Abstract
The abundance of docosahexaenoic acid (DHA) in brain membrane phospholipids has stimulated studies to explore its role in neurological functions. Upon released from phospholipids, DHA undergoes enzymatic reactions resulting in synthesis of bioactive docosanoids and prostanoids. However, these phospholipids are also prone to non-enzymatic reactions leading to more complex pattern of metabolites. A non-enzymatic oxidized product of DHA, 4(RS)-4-F4t-Neuroprostane (44FNP), has been identified in cardiac and brain tissues. In this study, we examined effects of the 44FNP on oxidative and inflammatory responses in microglial cells treated with lipopolysaccharide (LPS). The 44FNP attenuated LPS-induced production of reactive oxygen species (ROS) in both primary and immortalized microglia (BV2). It also attenuated LPS-induced inflammation through suppressing NFκB-p65 and levels of iNOS and TNFα. In addition, 44FNP also suppressed LPS-induced mitochondrial dysfunction and upregulated the Nrf2/HO-1 antioxidative pathway. In sum, these findings with microglial cells demonstrated neuroprotective effects of this 44FNP and shed light into the potential of nutraceutical therapy for neurodegenerative diseases.
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Affiliation(s)
- Xue Geng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Jean-Marie Galano
- Pôle Chimie Balard Recherche, Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Camille Oger
- Pôle Chimie Balard Recherche, Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, 65211, USA
| | - Thierry Durand
- Pôle Chimie Balard Recherche, Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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10
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Zhang J, Yuan P, Lei HZ, Liu XY, Li X, Ying JM, Sun GY, Wang SL, Lyu N. [Expression comparison and clinical significance of PD-L1 (22C3) and PD-L1 (SP142) in triple negative breast cancer]. Zhonghua Zhong Liu Za Zhi 2022; 44:260-267. [PMID: 35316876 DOI: 10.3760/cma.j.cn112152-20200803-00704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the expression of programmed death ligand-1 (PD-L1, SP142) and PD-L1 (22C3) in triple-negative breast cancer (TNBC), and analyze their correlation with the clinicopathological factors and prognosis. Methods: The clinicopathologic data of 259 patients with TNBC treated in Cancer Hospital from August 2010 to December 2013 were collected. Whole section of surgical tissue samples were collected to conduct PD-L1 (SP142) and PD-L1 (22C3) immunohistochemical (IHC) staining. The PD-L1 expression in tumor cells and tumor infiltrating immune cells were visually assessed respectively, the relationship between PD-L1 expression and clinicopathologic characterizes were analyzed. Univariable and multivariable Cox proportional hazards regression models were used to test the correlations between PD-L1 expression and disease-free survival (DFS) and overall survival (OS). Results: The positive rates of SP142 (immune cell score, ICs≥1%) and 22C3 (combined positive score, CPS≥1) were 42.1%(109/259) and 41.3%(107/259) in TNBC tissues, respectively, with a total coincidence rate of 82.3%. The Kappa value of positive expression cases was 0.571 and the distribution difference of SP142 and 22C3 positive expression cases was statistically significant (P<0.001). The PD-L1 positive patients were less likely to have vascular invasion (P<0.05), but with higher histological grade and Ki-67 proliferation index (P<0.05). The recurrence/metastasis cases(8) of the patients with positive PD-L1 (SP142) was significantly lower than that of patients with negative PD-L1(SP142, 27, P=0.016). The positive expression of PD-L1 (SP142) patients were longer DFS (P=0.019). The OS of patients with positive PD-L1 (SP142) were longer than those with negative PD-L1 (SP142), but without significance (P=0.116). The positive expression of PD-L1 (22C3) was marginally associated with DFS and OS of patients (P>0.05). Conclusions: The expression of PD-L1 (22C3) is different from that of PD-L1 (SP142) in TNBC, and the two antibodies can't be interchangeable for each other in clinical tests. PD-L1 (SP142) status is an independent prognostic factor of DFS in TNBC. The DFS is significantly prolonged in patients with positive expression of PD-L1 (SP142).
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Affiliation(s)
- J Zhang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Yuan
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Z Lei
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Y Liu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Li
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - G Y Sun
- Department of Radiotherapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S L Wang
- Department of Radiotherapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Lyu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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11
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Mossine VV, Waters JK, Gu Z, Sun GY, Mawhinney TP. Bidirectional Responses of Eight Neuroinflammation-Related Transcriptional Factors to 64 Flavonoids in Astrocytes with Transposable Insulated Signaling Pathway Reporters. ACS Chem Neurosci 2022; 13:613-623. [PMID: 35147416 DOI: 10.1021/acschemneuro.1c00750] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Neuroinflammation is implicated in a variety of pathologies and is mechanistically linked to hyperactivation of glial cells in the central nervous system (CNS), predominantly in response to external stimuli. Multiple dietary factors were reported to alter neuroinflammation, but their actions on the relevant transcription factors in glia are not sufficiently understood. Here, an in vitro protocol employing cultured astroglial cells, which carry reporters of multiple signaling pathways associated with inflammation, was developed for screening environmental factors and synthetic drugs. Immortalized rat astrocyte line DI TNC1 was stably transfected with piggyBac transposon vectors containing a series of insulated reporters for the transcriptional activity of NF-κB, AP-1, signal transducer and activator of transcription 1 (STAT1), signal transducer and activator of transcription 3 (STAT3), aromatic hydrocarbon receptor (AhR), Nrf2, peroxisome proliferator-activated receptor γ (PPARγ), and HIF-1α, which is quantified via luciferase assay. Concatenated green fluorescent protein (GFP) expression was employed for simultaneous evaluation of cellular viability. Responses to a set of 64 natural and synthetic monomeric flavonoids representing six main structural classes (flavan-3-ols, flavanones, flavones, flavonols, isoflavones, and anthocyan(id)ins) were obtained at 10 and 50 μM concentrations. Except for HIF-1α, the activity of NF-κB and other transcription factors (TFs) in astrocytes was predominantly inhibited by flavan-3-ols and anthocyan(id)ins, while flavones and isoflavones generally activated these TFs. In addition, we obtained dose-response profiles for 11 flavonoids (apigenin, baicalein, catechin, cyanidin, epigallocatechin gallate, genistein, hesperetin, kaempferol, luteolin, naringenin, and quercetin) within the 1-100 μM range and in the presence of immune-stimulants and immune-suppressors. The flavonoid concentration profiles for TF-activation reveal biphasic response curves from the astrocytes. Apart from epigallocatechin gallate (EGCG), flavonoids failed to inhibit the NF-κB activation by proinflammatory agents [lipopolysaccharide (LPS), cytokines], but most of the tested polyphenols synergized with STAT3 inhibitors (stattic, ruxolitinib) against the activation of this TF in the astrocytes. We conclude that transposable insulated reporters of transcriptional activation represent a convenient neurochemistry tool in screening for activators/inhibitors of signaling pathways.
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Affiliation(s)
- Valeri V. Mossine
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - James K. Waters
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, Missouri 65211, United States
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, Missouri 65211, United States
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Thomas P. Mawhinney
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
- Department of Child Health, University of Missouri, Columbia, Missouri 65211, United States
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12
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Siedhoff HR, Chen S, Balderrama A, Sun GY, Koopmans B, DePalma RG, Cui J, Gu Z. Long-Term Effects of Low-Intensity Blast Non-Inertial Brain Injury on Anxiety-Like Behaviors in Mice: Home-Cage Monitoring Assessments. Neurotrauma Rep 2022; 3:27-38. [PMID: 35141713 PMCID: PMC8820222 DOI: 10.1089/neur.2021.0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Mild traumatic brain injury induced by low-intensity blast (LIB) exposure poses concerns in military personnel. Using an open-field, non-inertial blast model and assessments by conventional behavioral tests, our previous studies revealed early-phase anxiety-like behaviors in LIB-exposed mice. However, the impact of LIB upon long-term anxiety-like behaviors requires clarification. This study applied a highly sensitive automated home-cage monitoring (HCM) system, which minimized human intervention and environmental changes, to assess anxiety-like responses in mice 3 months after LIB exposure. Initial assessment of 72-h spontaneous activities in a natural cage condition over multiple light and dark phases showed altered sheltering behaviors. LIB-exposed mice exhibited a subtle, but significantly decreased, duration of short shelter visits as compared to sham controls. Other measured responses between LIB-exposed mice and sham controls were insignificant. When behavioral assessments were performed in a challenged condition using an aversive spotlight, LIB-exposed mice demonstrated a significantly higher frequency of movements of shorter distance and duration per movement. Taken together, these findings demonstrated the presence of chronic anxiety-like behaviors assessed by the HCM system under both natural and challenged conditions in mice occurring post-LIB exposure. This model thus provides a platform to test for screening and interventions on anxiety disorders occurring after LIB non-inertial brain injury.
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Affiliation(s)
- Heather R. Siedhoff
- Harry S. Truman Memorial Veterans' Hospital Research Service, Columbia, Missouri, USA
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Shanyan Chen
- Harry S. Truman Memorial Veterans' Hospital Research Service, Columbia, Missouri, USA
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Ashley Balderrama
- Harry S. Truman Memorial Veterans' Hospital Research Service, Columbia, Missouri, USA
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri School of Medicine, Columbia, Missouri, USA
| | | | - Ralph G. DePalma
- Office of Research and Development, Department of Veterans Affairs, Washington, DC, USA; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Jiankun Cui
- Harry S. Truman Memorial Veterans' Hospital Research Service, Columbia, Missouri, USA
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Zezong Gu
- Harry S. Truman Memorial Veterans' Hospital Research Service, Columbia, Missouri, USA
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, USA
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13
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Li HX, Tang XK, Xu SY, Luo XM, Sun GY, Xu HT, Zhang PJ, Xiao F. [A retrospective safety study on screening of the samples in the clinical biobank of Beijing Hospital]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1149-1152. [PMID: 34619936 DOI: 10.3760/cma.j.cn112150-20210608-00557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
To investigate whether the laboratory specimens preserved in Beijing Hospital Biobank during a specific period had been contaminated by SARS-Cov-2 through a cross-sectional study, and to establish a retrospective biobank safety screening system. Laboratory specimens were collected from the Department of Respiratory and Critical Care Medicine and the Fever Clinic of Beijing Hospital from November 1, 2019 to January 22, 2020, nucleic acid and serological antibody testing were performed for SARS-CoV-2 in these specimens (including 79 serum, 20 urine, 42 feces and 21 bronchoalveolar lavage fluid specimens). The safety of the stored samples during this period was defined by negative and positive results. Both the nucleic acid test and serological antibody test showed negative for SARS-CoV-2, indicating that these specimens were safely stored in the biobank. High-risk specimens collected in our hospital during the early stage of the COVID-19 outbreak are free of SARS-CoV-2, and a safety screening strategy for the clinical biobank is established to ensure the biosafety of these samples.
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Affiliation(s)
- H X Li
- Clinical Biobank, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X K Tang
- Clinical Biobank, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Y Xu
- Clinical Biobank, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X M Luo
- Beijing Hospital, National Center of Gerontology, the MOH Key Laboratory of Geriatrics, Beijing 100730, China
| | - G Y Sun
- Clinical Biobank, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H T Xu
- Department of Clinical Laboratory, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P J Zhang
- Department of Scientific Research Administration, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - F Xiao
- Clinical Biobank, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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14
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Sun GY, Appenteng MK, Li R, Woo T, Yang B, Qin C, Pan M, Cieślik M, Cui J, Fritsche KL, Gu Z, Will M, Beversdorf D, Adamczyk A, Han X, Greenlief CM. Docosahexaenoic Acid (DHA) Supplementation Alters Phospholipid Species and Lipid Peroxidation Products in Adult Mouse Brain, Heart, and Plasma. Neuromolecular Med 2021; 23:118-129. [PMID: 32926329 PMCID: PMC9555299 DOI: 10.1007/s12017-020-08616-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/07/2020] [Indexed: 10/23/2022]
Abstract
The abundance of docosahexaenoic acid (DHA) in phospholipids in the brain and retina has generated interest to search for its role in mediating neurological functions. Besides the source of many oxylipins with pro-resolving properties, DHA also undergoes peroxidation, producing 4-hydroxyhexenal (4-HHE), although its function remains elusive. Despite wide dietary consumption, whether supplementation of DHA may alter the peroxidation products and their relationship to phospholipid species in brain and other body organs have not been explored sufficiently. In this study, adult mice were administered a control or DHA-enriched diet for 3 weeks, and phospholipid species and peroxidation products were examined in brain, heart, and plasma. Results demonstrated that this dietary regimen increased (n-3) and decreased (n-6) species to different extent in all major phospholipid classes (PC, dPE, PE-pl, PI and PS) examined. Besides changes in phospholipid species, DHA-enriched diet also showed substantial increases in 4-HHE in brain, heart, and plasma. Among different brain regions, the hippocampus responded to the DHA-enriched diet showing significant increase in 4-HHE. Considering the pro- and anti-inflammatory pathways mediated by the (n-6) and (n-3) polyunsaturated fatty acids, unveiling the ability for DHA-enriched diet to alter phospholipid species and lipid peroxidation products in the brain and in different body organs may be an important step forward towards understanding the mechanism(s) for this (n-3) fatty acid on health and diseases.
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Affiliation(s)
- Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Michael K Appenteng
- Department of Chemistry, University of Missouri, 125 Chemistry Bldg., Columbia, MO, 65211, USA
| | - Runting Li
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Taeseon Woo
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, 65211, USA
| | - Bo Yang
- Department of Chemistry, University of Missouri, 125 Chemistry Bldg., Columbia, MO, 65211, USA
| | - Chao Qin
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
- Department of Medicine, University of Texas Health Science & Center at San Antonio, San Antonio, TX, 78229, USA
| | - Meixia Pan
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
- Department of Medicine, University of Texas Health Science & Center at San Antonio, San Antonio, TX, 78229, USA
| | - Magdalena Cieślik
- Department of Cellular Signaling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Matthew Will
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - David Beversdorf
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, 65211, USA
- Departments of Radiology, Neurology and Psychological Sciences, and the Thompson Center, University of Missouri, Columbia, MO, 65211, USA
| | - Agata Adamczyk
- Department of Cellular Signaling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
- Department of Medicine, University of Texas Health Science & Center at San Antonio, San Antonio, TX, 78229, USA
| | - C Michael Greenlief
- Department of Chemistry, University of Missouri, 125 Chemistry Bldg., Columbia, MO, 65211, USA.
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15
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Zhang Z, Sun GY, Ding S. Glial Cell Line-Derived Neurotrophic Factor and Focal Ischemic Stroke. Neurochem Res 2021; 46:2638-2650. [PMID: 33591443 DOI: 10.1007/s11064-021-03266-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 11/29/2022]
Abstract
Focal ischemic stroke (FIS) is a leading cause of human debilitation and death. Following the onset of a FIS, the brain experiences a series of spatiotemporal changes which are exemplified in different pathological processes. One prominent feature of FIS is the development of reactive astrogliosis and glial scar formation in the peri-infarct region (PIR). During the subacute phase, astrocytes in PIR are activated, referred to as reactive astrocytes (RAs), exhibit changes in morphology (hypotrophy), show an increased proliferation capacity, and altered gene expression profile, a phenomenon known as reactive astrogliosis. Subsequently, the morphology of RAs remains stable, and proliferation starts to decline together with the formation of glial scars. Reactive astrogliosis and glial scar formation eventually cause substantial tissue remodeling and changes in permanent structure around the PIR. Glial cell line-derived neurotrophic factor (GDNF) was originally isolated from a rat glioma cell-line and regarded as a potent survival neurotrophic factor. Under normal conditions, GDNF is expressed in neurons but is upregulated in RAs after FIS. This review briefly describes properties of GDNF, its receptor-mediated signaling pathways, as well as recent studies regarding the role of RAs-derived GDNF in neuronal protection and brain recovery. These results provide evidence suggesting an important role of RA-derived GDNF in intrinsic brain repair and recovery after FIS, and thus targeting GDNF in RAs may be effective for stroke therapy.
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Affiliation(s)
- Zhe Zhang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO, 65211, USA.,Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, Columbia, MO, 65211, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri-Columbia, Columbia, MO, 65211, USA
| | - Shinghua Ding
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO, 65211, USA. .,Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, Columbia, MO, 65211, USA. .,Dalton Cardiovascular Research Center, Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, 134 Research Park Drive, Columbia, MO, 65211, USA.
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16
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Strosznajder AK, Wójtowicz S, Jeżyna MJ, Sun GY, Strosznajder JB. Recent Insights on the Role of PPAR-β/δ in Neuroinflammation and Neurodegeneration, and Its Potential Target for Therapy. Neuromolecular Med 2020; 23:86-98. [PMID: 33210212 PMCID: PMC7929960 DOI: 10.1007/s12017-020-08629-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
Abstract
Peroxisome proliferator-activated receptor (PPAR) β/δ belongs to the family of hormone and lipid-activated nuclear receptors, which are involved in metabolism of long-chain fatty acids, cholesterol, and sphingolipids. Similar to PPAR-α and PPAR-γ, PPAR-β/δ also acts as a transcription factor activated by dietary lipids and endogenous ligands, such as long-chain saturated and polyunsaturated fatty acids, and selected lipid metabolic products, such as eicosanoids, leukotrienes, lipoxins, and hydroxyeicosatetraenoic acids. Together with other PPARs, PPAR-β/δ displays transcriptional activity through interaction with retinoid X receptor (RXR). In general, PPARs have been shown to regulate cell differentiation, proliferation, and development and significantly modulate glucose, lipid metabolism, mitochondrial function, and biogenesis. PPAR-β/δ appears to play a special role in inflammatory processes and due to its proangiogenic and anti-/pro-carcinogenic properties, this receptor has been considered as a therapeutic target for treating metabolic syndrome, dyslipidemia, carcinogenesis, and diabetes. Until now, most studies were carried out in the peripheral organs, and despite of its presence in brain cells and in different brain regions, its role in neurodegeneration and neuroinflammation remains poorly understood. This review is intended to describe recent insights on the impact of PPAR-β/δ and its novel agonists on neuroinflammation and neurodegenerative disorders, including Alzheimer’s and Parkinson’s, Huntington’s diseases, multiple sclerosis, stroke, and traumatic injury. An important goal is to obtain new insights to better understand the dietary and pharmacological regulations of PPAR-β/δ and to find promising therapeutic strategies that could mitigate these neurological disorders.
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Affiliation(s)
- Anna K Strosznajder
- Faculty of Medicine, Medical University of Bialystok, 1 Kilinskiego st., 15-089, Białystok, Poland
| | - Sylwia Wójtowicz
- Department of Cellular Signaling, Mossakowski Medical Research Centre Polish Academy of Sciences, 5 Pawińskiego st., 02-106, Warsaw, Poland
| | - Mieszko J Jeżyna
- Faculty of Medicine, Medical University of Bialystok, 1 Kilinskiego st., 15-089, Białystok, Poland
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, 65211, USA
| | - Joanna B Strosznajder
- Department of Cellular Signaling, Mossakowski Medical Research Centre Polish Academy of Sciences, 5 Pawińskiego st., 02-106, Warsaw, Poland.
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17
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Kao MH, Wu JS, Cheung WM, Chen JJ, Sun GY, Ong WY, Herr DR, Lin TN. Clinacanthus nutans Mitigates Neuronal Death and Reduces Ischemic Brain Injury: Role of NF-κB-driven IL-1β Transcription. Neuromolecular Med 2020; 23:199-210. [PMID: 33025396 DOI: 10.1007/s12017-020-08618-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/26/2020] [Indexed: 12/15/2022]
Abstract
Neuroinflammation has been shown to exacerbate ischemic brain injury, and is considered as a prime target for the development of stroke therapies. Clinacanthus nutans Lindau (C. nutans) is widely used in traditional medicine for treating insect bites, viral infection and cancer, due largely to its anti-oxidative and anti-inflammatory properties. Recently, we reported that an ethanol extract from the leaf of C. nutans could protect the brain against ischemia-triggered neuronal death and infarction. In order to further understand the molecular mechanism(s) for its beneficial effects, two experimental paradigms, namely, in vitro primary cortical neurons subjected to oxygen-glucose deprivation (OGD) and in vivo rat middle cerebral artery (MCA) occlusion, were used to dissect the anti-inflammatory effects of C. nutans extract. Using promoter assays, immunofluorescence staining, and loss-of-function (siRNA) approaches, we demonstrated that transient OGD led to marked induction of IL-1β, IL-6 and TNFα, while pretreatment with C. nutans suppressed production of inflammatory cytokines in primary neurons. C. nutans inhibited IL-1β transcription via preventing NF-κB/p65 nuclear translocation, and siRNA knockdown of either p65 or IL-1β mitigated OGD-mediated neuronal death. Correspondingly, post-ischemic treatment of C. nutans attenuated IκBα degradation and decreased IL-1β, IL-6 and TNFα production in the ischemic brain. Furthermore, IL-1β siRNA post-ischemic treatment reduced cerebral infarct, thus mimicking the beneficial effects of C. nutans. In summary, our findings demonstrated the ability for C. nutans to suppress NF-κB nuclear translocation and inhibit IL-1β transcription in ischemic models. Results further suggest the possibility for using C. nutans to prevent and treat stroke patients.
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Affiliation(s)
- Mei-Han Kao
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Jui-Sheng Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, ROC
| | - Wai-Mui Cheung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, ROC
| | - Jin-Jer Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, ROC
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, USA
| | - Wei-Yi Ong
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119260, Singapore.,Neurobiology Programme, Life Sciences Institute, National University of Singapore, Singapore, 119260, Singapore
| | - Deron R Herr
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119260, Singapore
| | - Teng-Nan Lin
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan. .,Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, ROC.
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18
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Ji YP, Tang BL, Zhu XY, Liu HL, Song KD, Wan X, Yao W, Sun GY, Wang J, Sun ZM. [Efficacy and safety of ruxolitinib in the salvage treatment of chronic graft versus-host disease]. Zhonghua Yi Xue Za Zhi 2020; 100:1235-1239. [PMID: 32344495 DOI: 10.3760/cma.j.cn112137-20190829-01917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy and safety of low-dose Ruxolitinib in the treatment of patients with chronic graft-versus-host disease (cGVHD) and refractory to the first-line and/or second-line drugs after allogeneic hematopoietic stem cell transplantation. Methods: The clinical data was retrospectively analyzed of patients diagnosed with cGVHD in Anhui Provincial Hospital from July 9, 2018 to May 23, 2019. They were refractory to first-line and second-line drugs and were given a low-dose of Ruxolitinib (a dose of 5 mg twice daily if body weight ≥ 25 kg and 2.5 mg twice daily if body weight<25 kg). There was 2.5 mg reduction per week or every two weeks if the condition improved until withdrawal. The efficacy and safety of Ruxolitinib were retrospectively analyzed weekly or biweekly. If the condition improved, the dosage would be reduced by 2.5 mg weekly or biweekly until discontinuance. Results: A total of 47 patients were included in the study,and the median time of taking Ruxolitinib was 55 (21-154) days. The median time of taking effect was 14(7-28) days. The overall response rate was 87.2% (41/47). The complete response rate was 63.8% (30/47) and the partial response rate was 23.4%(11/47). Among them, 13 cases were mild and the overall response rate was 100%(13/13). Twenty one cases were moderate and the overall response rate was 90.5%(19/21). Thirteen cases were severe and the overall response rate was 69.2%(9/13). The highest overall response rate of all organs the was 100% in the gastrointestinal tract (7/7), and it was 95.8%(23/24) for the skin, 83.3%(5/6) for the liver and 76.9%(10/13) for the lung. The highest rate of complete organ response was 95.8% for skin. Eight patients (17%) developed cytopenia, of which 2(4.2%) were with a decrease of 3-4 degree hemoglobin. Recrudescence of cytomegalovirus occurred in 3 patients (6.4%). After withdrawal of Ruxolitinib, 6 patients (12.7%) had recurrence of cGVHD. The median time to relapse was 35.5(7-90) days. All of their conditions were improved after addition of Ruxolitinib. The median time of response was 7(5-14) days. The median follow-up was 208(33-412) days. Three patients(6.4%) died, and all of them died of severe pulmonary infection. Three patients (6.4%) had relapse of primary disease. The 6-month overall survival rate was 95.7%. Conclusion: Low-dose Ruxolitinib has good efficacy and safety in the treatment of cGVHD.
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Affiliation(s)
- Y P Ji
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - B L Tang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - X Y Zhu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - H L Liu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - K D Song
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - X Wan
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - W Yao
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - G Y Sun
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - J Wang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
| | - Z M Sun
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230000, China
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19
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Cieślik M, Gąssowska-Dobrowolska M, Jęśko H, Czapski GA, Wilkaniec A, Zawadzka A, Dominiak A, Polowy R, Filipkowski RK, Boguszewski PM, Gewartowska M, Frontczak-Baniewicz M, Sun GY, Beversdorf DQ, Adamczyk A. Maternal Immune Activation Induces Neuroinflammation and Cortical Synaptic Deficits in the Adolescent Rat Offspring. Int J Mol Sci 2020; 21:E4097. [PMID: 32521803 PMCID: PMC7312084 DOI: 10.3390/ijms21114097] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 01/01/2023] Open
Abstract
Maternal immune activation (MIA), induced by infection during pregnancy, is an important risk factor for neuro-developmental disorders, such as autism. Abnormal maternal cytokine signaling may affect fetal brain development and contribute to neurobiological and behavioral changes in the offspring. Here, we examined the effect of lipopolysaccharide-induced MIA on neuro-inflammatory changes, as well as synaptic morphology and key synaptic protein level in cerebral cortex of adolescent male rat offspring. Adolescent MIA offspring showed elevated blood cytokine levels, microglial activation, increased pro-inflammatory cytokines expression and increased oxidative stress in the cerebral cortex. Moreover, pathological changes in synaptic ultrastructure of MIA offspring was detected, along with presynaptic protein deficits and down-regulation of postsynaptic scaffolding proteins. Consequently, ability to unveil MIA-induced long-term alterations in synapses structure and protein level may have consequences on postnatal behavioral changes, associated with, and predisposed to, the development of neuropsychiatric disorders.
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Affiliation(s)
- Magdalena Cieślik
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Magdalena Gąssowska-Dobrowolska
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Henryk Jęśko
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Grzegorz A. Czapski
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Anna Wilkaniec
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Aleksandra Zawadzka
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
| | - Agnieszka Dominiak
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Żwirki i Wigury 61, 02-097 Warsaw, Poland;
| | - Rafał Polowy
- Behavior and Metabolism Research Laboratory, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (R.P.); (R.K.F.)
| | - Robert K. Filipkowski
- Behavior and Metabolism Research Laboratory, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (R.P.); (R.K.F.)
| | - Paweł M. Boguszewski
- Laboratory of Animal Models, Neurobiology Center, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteur 3, 02-093 Warsaw, Poland;
| | - Magdalena Gewartowska
- Electron Microscopy Platform, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.); (M.F.-B.)
| | - Małgorzata Frontczak-Baniewicz
- Electron Microscopy Platform, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.); (M.F.-B.)
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65201, USA;
| | - David Q. Beversdorf
- Departments of Radiology, Neurology, and Psychological Sciences, William and Nancy Thompson Endowed Chair in Radiology, DC069.10, One Hospital Drive, University of Missouri, Columbia, MO 65211, USA;
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (M.G.-D.); (H.J.); (G.A.C.); (A.W.); (A.Z.)
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20
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Fang TT, Zhu XY, Tang BL, Liu HL, Wan X, Song KD, Yao W, Sun GY, Fang XC, Sun ZM. [Effect of KIR/HLA receptor-ligand mode on prognosis of single unrelated cord blood transplantation in patients with hematological malignancies]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:204-209. [PMID: 32311889 PMCID: PMC7357922 DOI: 10.3760/cma.j.issn.0253-2727.2020.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
目的 探讨自然杀伤细胞免疫球蛋白样受体(KIR)与人类白细胞抗原(HLA)受配体模式对血液病患者单份非血缘脐血移植(sUCBT)预后的影响。 方法 回顾性分析2012年7月至2018年6月270例接受sUCBT的血液病患者。移植前脐血及患者均进行HLA12个位点高分辨配型,选择移植物(脐血)的KIR均同时表达2DL1和2DL2/2DL3抑制性基因,根据患者KIR配体情况分为缺失组(C1/C1或C2/C2)和无缺失组(C1/C2)。 结果 270例血液病患者中男146例(54.1%),女124例(45.9%),中位年龄13(1~62)岁;缺失组174例(64.4%),无缺失组96例(35.6%)。全部患者均采用不含抗胸腺细胞球蛋白(ATG)清髓性预处理方案。缺失组、无缺失组粒细胞植入率均为98.9%(172/174、95/96),中位植入时间分别为16(10~41)d、17(11~33)d(P=0.705);血小板植入率分别为88.5%(154/174)、87.5%(84/96),中位植入时间分别为35(11~113)d、38.5(13~96)d(P=0.317);缺失组、无缺失组Ⅱ~Ⅳ级急性GVHD发生率分别为38.7%(95%CI 31.4%~45.9%)、50.0%(95%CI 39.6%~59.6%)(P=0.075),多因素分析显示KIR配体缺失是影响Ⅱ~Ⅳ度急性GVHD发生的独立保护性因素(P=0.036)。移植后3年累积复发率分别为17.7%(95%CI 11.7%~24.9%)、22.7%(95%CI14.4%~32.2%)(P=0.288)。中位随访时间742(335~2 512)d,缺失组、无缺失组3年总生存率分别为72.1%(95%CI 64.1%~78.6%)、60.5%(95%CI 47.9%~69.2%)(χ2=3.629,P=0.079),3年无病生存率分别为64.9%(95%CI 56.2%~72.3%)、55.4%(95%CI 44.4%~65.0%)(χ2=3.027,P=0.082),移植后180 d 非复发死亡率分别为12.1%(95%CI 7.7%~17.4%)、16.7%(95%CI 10.0%~24.8%)(P=0.328)。 结论 在不含ATG清髓性预处理sUCBT血液病治疗体系中,缺失抑制性KIR配体患者移植后急性GVHD发生率更低。
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Affiliation(s)
- T T Fang
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - X Y Zhu
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - B L Tang
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - H L Liu
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - X Wan
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - K D Song
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - W Yao
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - G Y Sun
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - X C Fang
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
| | - Z M Sun
- Department of Hematology, Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
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21
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Yang B, Li R, Liu PN, Geng X, Mooney BP, Chen C, Cheng J, Fritsche KL, Beversdorf DQ, Lee JC, Sun GY, Greenlief CM. Quantitative Proteomics Reveals Docosahexaenoic Acid-Mediated Neuroprotective Effects in Lipopolysaccharide-Stimulated Microglial Cells. J Proteome Res 2020; 19:2236-2246. [PMID: 32302149 PMCID: PMC7282485 DOI: 10.1021/acs.jproteome.9b00792] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
![]()
The high levels of docosahexaenoic
acid (DHA) in cell membranes
within the brain have led to a number of studies exploring its function.
These studies have shown that DHA can reduce inflammatory responses
in microglial cells. However, the method of action is poorly understood.
Here, we report the effects of DHA on microglial cells stimulated
with lipopolysaccharides (LPSs). Data were acquired using the parallel
accumulation serial fragmentation method in a hybrid trapped ion mobility-quadrupole
time-of-flight mass spectrometer. Over 2800 proteins are identified
using label-free quantitative proteomics. Cells exposed to LPSs and/or
DHA resulted in changes in cell morphology and expression of 49 proteins
with differential abundance (greater than 1.5-fold change). The data
provide details about pathways that are influenced in this system
including the nuclear factor κ-light-chain-enhancer of the activated
B cells (NF-κB) pathway. Western blots and enzyme-linked immunosorbent
assay studies are used to help confirm the proteomic results. The
MS data are available at ProteomeXchange.
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Affiliation(s)
- Bo Yang
- Department of Chemistry, University of Missouri, Columbia 65211, Missouri, United States.,Charles W. Gehrke Proteomics Center, University of Missouri, Columbia 65211, Missouri, United States
| | - Runting Li
- Biochemistry Department, University of Missouri, Columbia 65211, Missouri, United States
| | - Pei N Liu
- Charles W. Gehrke Proteomics Center, University of Missouri, Columbia 65211, Missouri, United States
| | - Xue Geng
- Department of Bioengineering, University of Illinois at Chicago, Chicago 60612, Illinois, United States
| | - Brian P Mooney
- Biochemistry Department, University of Missouri, Columbia 65211, Missouri, United States.,Charles W. Gehrke Proteomics Center, University of Missouri, Columbia 65211, Missouri, United States
| | - Chen Chen
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia 65211, Missouri, United States
| | - Jianlin Cheng
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia 65211, Missouri, United States
| | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia 65211, Missouri, United States
| | - David Q Beversdorf
- Departments of Radiology, Neurology and Psychological Sciences, and the Thompson Center, University of Missouri, Columbia 65211, Missouri, United States
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago 60612, Illinois, United States
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia 65211, Missouri, United States
| | - C Michael Greenlief
- Department of Chemistry, University of Missouri, Columbia 65211, Missouri, United States.,Charles W. Gehrke Proteomics Center, University of Missouri, Columbia 65211, Missouri, United States
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22
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Zhou X, Han S, Wilder-Romans K, Sun GY, Zhu H, Liu X, Tan M, Wang G, Feng FY, Sun Y. Neddylation inactivation represses androgen receptor transcription and inhibits growth, survival and invasion of prostate cancer cells. Neoplasia 2020; 22:192-202. [PMID: 32145689 PMCID: PMC7058827 DOI: 10.1016/j.neo.2020.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 02/07/2023] Open
Abstract
Androgen receptor (AR) and its constitutively active variants (AR-Vs) have been extensively implicated in the progression and recurrence of prostate cancer, making them attractive targets in the treatment of this disease. Whether and how neddylation modification regulates AR, and the therapeutic implications of this potential regulation, are relatively unexplored areas of investigation. Here we report that neddylation inactivation by the pharmacological inhibitor MLN4924 or Lenti-shRNA-based genetic knockdown of neddylation activating enzyme (NAE) selectively suppressed growth and survival of prostate cancer cells with minor, if any, effect on normal prostate epithelial cells. MLN4924 also significantly suppressed the invasive capacity of prostate cancer cells. Furthermore, compared to monotherapy, the combination of MLN4924 with AR antagonist or castration significantly enhanced growth suppression of prostate cancer cells in vitro, and tumor growth in an in vivo xenograft model. Mechanistically, MLN4924 repressed the transcription of AR/AR-V7 and its downstream targets, and blocked MMP2 and MMP9 expression. Taken together, our study reveals that the neddylation pathway positively regulates AR/AR-V7 transcription, and that the neddylation inhibitor MLN4924 has therapeutic potential for the treatment of aggressive prostate cancers.
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Affiliation(s)
- Xiaochen Zhou
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China; Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Sumin Han
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Kari Wilder-Romans
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Grace Y Sun
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Hong Zhu
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Xiaoqiang Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China; Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Mingjia Tan
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Gongxian Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Felix Y Feng
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA; Departments of Radiation Oncology, Urology, and Medicine, University of California, San Francisco, San Francisco, CA, USA.
| | - Yi Sun
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.
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23
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Ungerer G, Cui J, Ndam T, Bekemeier M, Song H, Li R, Siedhoff HR, Yang B, Appenteng MK, Greenlief CM, Miller DK, Sun GY, Folk WR, Gu Z. Harpagophytum procumbens Extract Ameliorates Allodynia and Modulates Oxidative and Antioxidant Stress Pathways in a Rat Model of Spinal Cord Injury. Neuromolecular Med 2020; 22:278-292. [PMID: 31900786 DOI: 10.1007/s12017-019-08585-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023]
Abstract
Spinal cord injury (SCI) is a deliberating disorder with impairments in locomotor deficits and incapacitating sensory abnormalities. Harpagophytum procumbens (Hp) is a botanical widely used for treating inflammation and pain related to various inflammatory and musculoskeletal conditions. Using a modified rodent contusion model of SCI, we explored the effects of this botanical on locomotor function and responses to mechanical stimuli, and examined possible neurochemical changes associated with SCI-induced allodynia. Following spinal cord contusion at T10 level, Hp (300 mg/kg, p.o.) or vehicle (water) was administered daily starting 24 h post-surgery, and behavioral measurements made every-other day until sacrifice (Day 21). Hp treatment markedly ameliorated the contusion-induced decrease in locomotor function and increased sensitivity to mechanical stimuli. Determination of Iba1 expression in spinal cord tissues indicated microglial infiltration starting 3 days post-injury. SCI results in increased levels of 4-hydroxynonenal, an oxidative stress product and proalgesic, which was diminished at 7 days by treatment with Hp. SCI also enhanced antioxidant heme oxygenase-1 (HO-1) expression. Concurrent studies of cultured murine BV-2 microglial cells revealed that Hp suppressed oxidative/nitrosative stress and inflammatory responses, including production of nitric oxide and reactive oxygen species, phosphorylation of cytosolic phospholipases A2, and upregulation of the antioxidative stress pathway involving the nuclear factor erythroid 2-related factor 2 and HO-1. These results support the use of Hp for management of allodynia by providing resilience against the neuroinflammation and pain associated with SCI and other neuropathological conditions.
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Affiliation(s)
- Garrett Ungerer
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Jiankun Cui
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Tina Ndam
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Mikeala Bekemeier
- Department of Psychological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Hailong Song
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Runting Li
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Heather R Siedhoff
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Bo Yang
- Department of Chemistry, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Michael K Appenteng
- Department of Chemistry, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - C Michael Greenlief
- Department of Chemistry, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Dennis K Miller
- Department of Psychological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Grace Y Sun
- Biochemistry Department, School of Medicine and College of Agriculture, Food and Natural Resources, University of Missouri, Columbia, MO, 65211, USA
| | - William R Folk
- Biochemistry Department, School of Medicine and College of Agriculture, Food and Natural Resources, University of Missouri, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology & Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, 65212, USA.
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24
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Song H, Cui J, Mossine VV, Greenlief CM, Fritsche K, Sun GY, Gu Z. Bioactive components from garlic on brain resiliency against neuroinflammation and neurodegeneration. Exp Ther Med 2019; 19:1554-1559. [PMID: 32010338 PMCID: PMC6966118 DOI: 10.3892/etm.2019.8389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/05/2019] [Indexed: 01/05/2023] Open
Abstract
Garlic (Allium sativum) has been widely used for culinary and medicinal purposes. Aged garlic extract (AGE) and sulfur-containing compounds, including S-allylcysteine (SAC) are well documented botanical active components of garlic. AGE is prepared by the prolonged extraction of fresh garlic with aqueous ethanol and is considered a nutritional supplement with potential to promote human health. SAC is a water-soluble organosulfur compound and the most abundant component of AGE. Studies have demonstrated that both AGE and SAC can exert neuroprotective effects against neuroinflammation and neurodegeneration. Another bioactive component in AGE is N-α-(1-deoxy-D-fructos-1-yl)-L-arginine (FruArg) although less is known about the metabolic activity of this compound. The main aim of this review was to provide an undated overview of the neuroprotective perspectives of these active garlic components (AGE, SAC and FruArg). Of interest, our studies and those of others indicate that both AGE and FruArg are involved in the regulation of gene transcription and protein expression. AGE has been shown to reverse 67% of the transcriptome alteration induced by endotoxins-lipopolysaccharide (LPS), and FruArg has been shown to account for the protective effects by reversing 55% of genes altered in a cell-based neuroinflammation paradigm stimulated by LPS in murine BV-2 microglial cells. AGE and FruArg can alleviate neuroinflammatory responses through a variety of signaling pathways, such as Toll-like receptor and interleukin (IL)-6 signaling, as well as by upregulating the nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated oxidative stress pathways known to promote microglial resiliency against neuroinflammation and neurodegeneration. The capability of FruArg to pass through the blood-brain barrier further supports its potential as a therapeutic compound. In summary, these experimental results provide new insight into the understanding of the neuroprotective effects of garlic components in promoting brain resiliency for health benefits.
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Affiliation(s)
- Hailong Song
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA.,Truman VA Hospital Research Service, Columbia, MO 65201, USA
| | - Valeri V Mossine
- Department of Biochemistry, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | | | - Kevin Fritsche
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Grace Y Sun
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA.,Department of Biochemistry, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA.,Truman VA Hospital Research Service, Columbia, MO 65201, USA
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25
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Zhang L, Gao L, Shao M, Sun GY. A MYC target long non-coding RNA GATA2-AS1 regulates non-small cell lung cancer growth. Neoplasma 2019; 66:954-962. [PMID: 31607132 DOI: 10.4149/neo_2019_190210n112] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 06/06/2019] [Indexed: 11/08/2022]
Abstract
Non-small cell lung cancer (NSCLC) is the most prevalent subtype of lung cancer histologically, and an increasing number of evidences have shown during the past years that long non-coding RNAs (lncRNAs) are involved in tumorigenesis. Here we found a long non-coding RNA, GATA2-AS1, repressing NSCLC cells proliferation via regulating GATA2. GATA2-AS1 gene is located at antisense strand of GATA2 on chromosome while GATA2-AS1 RNA interacts with GATA1 protein at promoter region of GATA2 and then inhibits its transcription. Moreover, GATA2-AS1 is transcriptionally repressed by MYC in NSCLC cells. To conclude, our study discovered the role of lncRNA GATA2-AS1 in human non-small cell lung cancer growth thus providing a potential target for lung cancer drugs.
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Affiliation(s)
- L Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - L Gao
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - M Shao
- Department of Critical Care Medicine, The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - G Y Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Anhui Medical University, Hefei, China
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26
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Sun GY, Wang SL, Tang Y, Yang Y, Fang H, Wang JY, Jing H, Zhang JH, Jin J, Song YW, Liu YP, Chen B, Qi SN, Li N, Tang Y, Lu NN, Wang WH, Chen SY, Ren H, Liu XF, Yu ZH, Li YX. [The 8th edition of the American Joint Committee on Cancer staging system provide improved prognostic accuracy in T1-2N1M0 postmastectomy breast cancer patients]. Zhonghua Zhong Liu Za Zhi 2019; 41:615-623. [PMID: 31434454 DOI: 10.3760/cma.j.issn.0253-3766.2019.08.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To validate whether the prognostic stage groups by the 8th edition of the American Joint Committee on Cancer (AJCC) staging system provides improved prognostic accuracy in T1-2N1M0 postmastectomy breast cancer patients compared to 7th edition. Methods: a total of 1 823 female patients with T1-2N1M0 breast cancer who underwent mastectomy and axillary lymph node dissection without neoadjuvant chemotherapy were analyzed and restaged according to 8th edition. Univariate analysis of prognostic factors was evaluated by using log-rank test. Multivariate analysis was estimated by using the Cox proportional hazards model. The prognostic accuracy of the two staging systems was compared using receiver operating characteristic (ROC) analyses and the concordance index (C-index). Results: 5-year locoregional recurrence rate (LRR) for the whole group was 6.0%, 5-year distant metastasis (DM) rate was 11.5%, 5-year disease-free survival (DFS) was 85.0%, and 5-year overall survival (OS) was 93.1%. Cox analysis showed that 7th edition of the AJCC staging system and progesterone receptor status were independent risk factors for LRR, DM, DFS and OS (P<0.05). Compared with stage by 7th edition, 1 278(70.1%) were assigned to a different prognostic stage group: 1 088 (85.1%) to a lower stage and 190 (14.9%) to a higher stage. LRR, DM, DFS and OS were significantly different between prognostic stage ⅠA, ⅠB, ⅡA, ⅡB and ⅢA according to 8th edition of the AJCC staging system(P<0.001). Prognostic stage had significantly higher C-indexes and provided better estimation of prognosis compared to stage by 7th edition of the AJCC staging system (P<0.001). Conclusion: The prognostic stage groups of 8th edition AJCC staging system has superior prognostic accuracy compared to 7th edition in T1-2N1M0 breast cancer, and has better clinical therapeutic guidance value.
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Affiliation(s)
- G Y Sun
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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27
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Hou YM, Zhang X, Zhang NN, Naklumpa W, Zhao WY, Liang XF, Zhang R, Sun GY, Gleason ML. Genera Acremonium and Sarocladium Cause Brown Spot on Bagged Apple Fruit in China. Plant Dis 2019; 103:1889-1901. [PMID: 31161920 DOI: 10.1094/pdis-10-18-1794-re] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Apple fruit spot disease has caused serious economic losses for years in China since the widespread application of fruit bagging in production. Although the three genera Trichothecium, Alternaria, and Acremonium have been reported to be the causal agents, studies on the disease etiology and pathogen biology are still sparse. Here, we report characterization of eight fungal isolates from lesions on 126 symptomatic fruit samples collected in Shaanxi Province, China. Pathogenicity of the isolates was assessed. DNA sequences were obtained at four loci, including D1/D2 domains of the large-subunit nrRNA gene, internal transcribed spacer regions 1 and 2, 5.8S nrDAN gene, a fragment of the actin gene, and a fragment of the β-tubulin. Based on phylogenetic analysis and morphological features, three new species were found: Acremonium mali, Sarocladium liquanensis, and Sarocladium mali. In addition, we made the first report of Sarocladium terricola as a plant pathogen. Temperature and moisture significantly affected in vitro conidial germination of five Acremonium-like species, and their impact on infection of apple fruit was tested using Acremonium sclerotigenum. Conidia of five species germinated from 15 to 35°C in free water; four of the species had optimum temperature around 25°C, whereas conidia of S. terricola had an optimum temperature of 30°C. Conidial germination rate increased as relative humidity (RH) increased. The five isolates had relatively high conidial germination rates at RH > 97%, with a significant decline at 95% RH. Incidence of infection also increased in proportion to RH. In free water, conidial germination was relatively unaffected by temperature.
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Affiliation(s)
- Y M Hou
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Zhang
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - N N Zhang
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - W Naklumpa
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - W Y Zhao
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X F Liang
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - R Zhang
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - G Y Sun
- 1State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
| | - M L Gleason
- 2Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA, U.S.A
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28
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Yang B, Fritsche KL, Beversdorf DQ, Gu Z, Lee JC, Folk WR, Greenlief CM, Sun GY. Yin-Yang Mechanisms Regulating Lipid Peroxidation of Docosahexaenoic Acid and Arachidonic Acid in the Central Nervous System. Front Neurol 2019; 10:642. [PMID: 31275232 PMCID: PMC6591372 DOI: 10.3389/fneur.2019.00642] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/31/2019] [Indexed: 12/11/2022] Open
Abstract
Phospholipids in the central nervous system (CNS) are rich in polyunsaturated fatty acids (PUFAs), particularly arachidonic acid (ARA) and docosahexaenoic acid (DHA). Besides providing physical properties to cell membranes, these PUFAs are metabolically active and undergo turnover through the “deacylation-reacylation (Land's) cycle”. Recent studies suggest a Yin-Yang mechanism for metabolism of ARA and DHA, largely due to different phospholipases A2 (PLA2s) mediating their release. ARA and DHA are substrates of cyclooxygenases and lipoxygenases resulting in an array of lipid mediators, which are pro-inflammatory and pro-resolving. The PUFAs are susceptible to peroxidation by oxygen free radicals, resulting in the production of 4-hydroxynonenal (4-HNE) from ARA and 4-hydroxyhexenal (4-HHE) from DHA. These alkenal electrophiles are reactive and capable of forming adducts with proteins, phospholipids and nucleic acids. The perceived cytotoxic and hormetic effects of these hydroxyl-alkenals have impacted cell signaling pathways, glucose metabolism and mitochondrial functions in chronic and inflammatory diseases. Due to the high levels of DHA and ARA in brain phospholipids, this review is aimed at providing information on the Yin-Yang mechanisms for regulating these PUFAs and their lipid peroxidation products in the CNS, and implications of their roles in neurological disorders.
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Affiliation(s)
- Bo Yang
- Department of Chemistry, University of Missouri, Columbia, MO, United States
| | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, United States
| | - David Q Beversdorf
- Departments of Radiology, Neurology and Psychological Sciences, and the Thompson Center, Columbia, MO, United States
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, United States
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States
| | - William R Folk
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - C Michael Greenlief
- Department of Chemistry, University of Missouri, Columbia, MO, United States
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, United States
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Teng T, Ridgley DM, Tsoy A, Sun GY, Askarova S, Lee JC. Azelnidipine Attenuates the Oxidative and NFκB Pathways in Amyloid-β-Stimulated Cerebral Endothelial Cells. ACS Chem Neurosci 2019; 10:209-215. [PMID: 30399318 DOI: 10.1021/acschemneuro.8b00368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cerebral amyloid angiopathy (CAA), a condition depicting cerebrovascular accumulation of amyloid β-peptide (Aβ), is a common pathological manifestation in Alzheimer's disease (AD). In this study, we investigated the effects of Azelnidipine (ALP), a dihydropyridine calcium channel blocker known for its treatment of hypertension, on oligomeric Aβ (oAβ)-induced calcium influx and its downstream pathway in immortalized mouse cerebral endothelial cells (bEND3). We found that ALP attenuated oAβ-induced calcium influx, superoxide anion production, and phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) and calcium-dependent cytosolic phospholipase A2 (cPLA2). Both ALP and cPLA2 inhibitor, methylarachidonyl fluorophosphate (MAFP), suppressed oAβ-induced translocation of NFκB p65 subunit to nuclei, suggesting that cPLA2 activation and calcium influx are essential for oAβ-induced NFκB activation. In sum, our results suggest that calcium channel blocker could be a potential therapeutic strategy for suppressing oxidative stress and inflammatory responses in Aβ-stimulated microvasculature in AD.
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Affiliation(s)
- Tao Teng
- Richard and Loan Hill Department of Bioengineering, University of Illinois at Chicago, 851 South Morgan Street, MC 063, Chicago, Illinois 60607, United States
| | - Devin M. Ridgley
- Richard and Loan Hill Department of Bioengineering, University of Illinois at Chicago, 851 South Morgan Street, MC 063, Chicago, Illinois 60607, United States
| | - Andrey Tsoy
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan 010000
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Sholpan Askarova
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan 010000
| | - James C. Lee
- Richard and Loan Hill Department of Bioengineering, University of Illinois at Chicago, 851 South Morgan Street, MC 063, Chicago, Illinois 60607, United States
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30
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Song H, Zhou H, Qu Z, Hou J, Chen W, Cai W, Cheng Q, Chuang DY, Chen S, Li S, Li J, Cheng J, Greenlief CM, Lu Y, Simonyi A, Sun GY, Wu C, Cui J, Gu Z. From Analysis of Ischemic Mouse Brain Proteome to Identification of Human Serum Clusterin as a Potential Biomarker for Severity of Acute Ischemic Stroke. Transl Stroke Res 2018; 10:546-556. [PMID: 30465328 DOI: 10.1007/s12975-018-0675-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 11/01/2018] [Accepted: 11/11/2018] [Indexed: 12/22/2022]
Abstract
Ischemic stroke is a devastating neurological disease that can cause permanent brain damage, but to date, few biomarkers are available to reliably assess the severity of injury during acute onset. In this study, quantitative proteomic analysis of ischemic mouse brain detected the increase in expression levels of clusterin (CLU) and cystatin C (CST3). Since CLU is a secretary protein, serum samples (n = 70) were obtained from acute ischemic stroke (AIS) patients within 24 h of stroke onset and together with 70 matched health controls. Analysis of CLU levels indicated significantly higher levels in AIS patients than healthy controls (14.91 ± 4.03 vs. 12.79 ± 2.22 ng/L; P = 0.0004). Analysis of serum CST3 also showed significant increase in AIS patients as compared with healthy controls (0.90 ± 0.19 vs. 0.84 ± 0.12 ng/L; P = 0.0064). The serum values of CLU were also positively correlated with the NIH Stroke Scale (NIHSS) scores, the time interval after stroke onset, as well as major stroke risk factors associated with lipid profile. These data demonstrate that elevated levels of serum CLU and CST3 are independently associated with AIS and may serve as peripheral biomarkers to aid clinical assessment of AIS and its severity. This pilot study thus contributes to progress toward preclinical proteomic screening by using animal models and allows translation of results from bench to bedside.
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Affiliation(s)
- Hailong Song
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA
| | - Hui Zhou
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA
| | - Zhe Qu
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA
| | - Jie Hou
- Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Computer Science, University of Missouri, Columbia, MO, 65211, USA
| | - Weilong Chen
- Department of Neurology, the Second Affiliated Clinical College of Fujian University of Traditional Chinese Medicine, Fuzhou, 350001, China
| | - Weiwu Cai
- Department of Neurology, the Second Affiliated Clinical College of Fujian University of Traditional Chinese Medicine, Fuzhou, 350001, China
| | - Qiong Cheng
- Department of Neurology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Dennis Y Chuang
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Shanyan Chen
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA
| | - Shuwei Li
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA
| | - Jilong Li
- Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Computer Science, University of Missouri, Columbia, MO, 65211, USA
| | - Jianlin Cheng
- Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Computer Science, University of Missouri, Columbia, MO, 65211, USA
| | | | - Yuan Lu
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, TX, 78666, USA
| | - Agnes Simonyi
- Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Grace Y Sun
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.,Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Chenghan Wu
- Department of Neurology, the Second Affiliated Clinical College of Fujian University of Traditional Chinese Medicine, Fuzhou, 350001, China
| | - Jiankun Cui
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA. .,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, 65211, USA.
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31
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Sun GY, Simonyi A, Fritsche KL, Chuang DY, Hannink M, Gu Z, Greenlief CM, Yao JK, Lee JC, Beversdorf DQ. Docosahexaenoic acid (DHA): An essential nutrient and a nutraceutical for brain health and diseases. Prostaglandins Leukot Essent Fatty Acids 2018; 136:3-13. [PMID: 28314621 PMCID: PMC9087135 DOI: 10.1016/j.plefa.2017.03.006] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/06/2017] [Accepted: 03/09/2017] [Indexed: 01/01/2023]
Abstract
Docosahexaenoic acid (DHA), a polyunsaturated fatty acid (PUFA) enriched in phospholipids in the brain and retina, is known to play multi-functional roles in brain health and diseases. While arachidonic acid (AA) is released from membrane phospholipids by cytosolic phospholipase A2 (cPLA2), DHA is linked to action of the Ca2+-independent iPLA2. DHA undergoes enzymatic conversion by 15-lipoxygenase (Alox 15) to form oxylipins including resolvins and neuroprotectins, which are powerful lipid mediators. DHA can also undergo non-enzymatic conversion by reacting with oxygen free radicals (ROS), which cause the production of 4-hydoxyhexenal (4-HHE), an aldehyde derivative which can form adducts with DNA, proteins and lipids. In studies with both animal models and humans, there is evidence that inadequate intake of maternal n-3 PUFA may lead to aberrant development and function of the central nervous system (CNS). What is less certain is whether consumption of n-3 PUFA is important in maintaining brain health throughout one's life span. Evidence mostly from non-human studies suggests that DHA intake above normal nutritional requirements might modify the risk/course of a number of diseases of the brain. This concept has fueled much of the present interest in DHA research, in particular, in attempts to delineate mechanisms whereby DHA may serve as a nutraceutical and confer neuroprotective effects. Current studies have revealed ability for the oxylipins to regulation of cell redox homeostasis through the Nuclear factor (erythroid-derived 2)-like 2/Antioxidant response element (Nrf2/ARE) anti-oxidant pathway, and impact signaling pathways associated with neurotransmitters, and modulation of neuronal functions involving brain-derived neurotropic factor (BDNF). This review is aimed at describing recent studies elaborating these mechanisms with special regard to aging and Alzheimer's disease, autism spectrum disorder, schizophrenia, traumatic brain injury, and stroke.
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Affiliation(s)
- Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Agnes Simonyi
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, United States
| | - Dennis Y Chuang
- Department of Neurology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, OH, United States
| | - Mark Hannink
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
| | | | - Jeffrey K Yao
- Medical Research Service, VA Pittsburgh Healthcare System, and Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States
| | - David Q Beversdorf
- Department of Radiology, Neurology, and Psychological Sciences, and the Thompson Center, William and Nancy Thompson Endowed Chair in Radiology, University of Missouri School of Medicine, Columbia, MO, United States
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32
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Chen SY, Tang Y, Song YW, Wang SL, Jin J, Liu YP, Wang WH, Fang H, Ren H, Sun GY, Wang JY, Jing H, Zhang JH, Liu XF, Yu ZH, Li YX. [Prognosis and risk factors of 1 791 patients with breast cancer treated with breast-conserving surgery based on real-world data]. Zhonghua Zhong Liu Za Zhi 2018; 40:619-625. [PMID: 30139034 DOI: 10.3760/cma.j.issn.0253-3766.2018.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the overall efficacy of early breast cancer after breast-conserving treatment. To analyze risk factors affecting local regional recurrence (LRR), distant metastasis (DM) and survival. Methods: 1 791 breast cancer patients treated with breast-conserving surgery were retrospectively analyzed. The inclusion criteria were pathologic diagnosis of invasive breast cancer without supraclavicular and internal mammary node metastasis, T1-2N0-3M0, and no neoadjuvant therapy. Univariate analysis of survival was performed by Kaplan-Meier method and log rank test. Cox regression model was used for multivariate analysis. Results: The median follow-up time was 4.2 years. For all patients, the 5-year LRR, DM, disease-free survival(DFS) and overall survival(OS) rates were 3.6%, 4.6%, 93.0% and 97.4%, respectively. The LRR rates of patients with Luminal A, Luminal B1, Luminal B2, HER-2 over-expressed and triple-negative breast cancer were 2.0%, 6.1%, 5.9%, 0 and 10.0%, while the DM rates were 3.2%, 6.7%, 8.3%, 4.8% and 7.3%, respectively. Among the N0 patients, axillary dissection was performed in 689 cases and sentinel lymph node biopsy in 652 cases. The 5-year LRR rates were 3.3% and 3.2% (P=0.859), and the OS rates were 98.2% and 98.3% (P=0.311) respectively, which showed no statistically significant. There were 1 576 patients that underwent postoperative radiotherapy. Postoperative radiotherapy significantly reduced the 5-year LRR compared with surgery alone (2.5% vs 12.9%). The 5-year LRR rates of patients who received conventional fractionated radiotherapy and hypo-fractionated radiotherapy were 2.7% and 3.1%, respectively. But the difference was not statistically significant (P=0.870). Multivariate analysis showed that age, lymphovascular invasion, pathological T staging, postoperative radiotherapy, ER/PR status and endocrine therapy were independent factors of LRR in breast cancer patients (all P<0.05). Histological grade and pathological N staging were independent factors of DM (all P<0.05). The age, lymphovascular invasion, pathological T and N staging, postoperative radiotherapy, ER/PR status and endocrine therapy were independent factors for DFS (all P<0.05). Histological grade, pathological N staging, ER/PR status and endocrine therapy were factors for OS (all P<0.05). Conclusions: With contemporary standard treatment, the recurrence rate of early breast cancer after breast conserving treatment is less than 10%. Node-negative patients after sentinel lymph node biopsy did not need axillary dissection. The overall utilization of radiotherapy after breast conserving surgery is satisfactory. Hypofractionated radiotherapy is as effective as conventional fractionated radiotherapy. Local regional recurrence and distant metastasis have different risk factors.
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Affiliation(s)
- S Y Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - Y W Song
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - S L Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - Y P Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - W H Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - H Fang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - H Ren
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - G Y Sun
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - J Y Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - H Jing
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - J H Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - X F Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - Z H Yu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
| | - Y X Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, China
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Teng T, Dong L, Ridgley DM, Ghura S, Tobin MK, Sun GY, LaDu MJ, Lee JC. Cytosolic Phospholipase A 2 Facilitates Oligomeric Amyloid-β Peptide Association with Microglia via Regulation of Membrane-Cytoskeleton Connectivity. Mol Neurobiol 2018; 56:3222-3234. [PMID: 30112630 DOI: 10.1007/s12035-018-1304-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/07/2018] [Indexed: 12/22/2022]
Abstract
Cytosolic phospholipase A2 (cPLA2) mediates oligomeric amyloid-β peptide (oAβ)-induced oxidative and inflammatory responses in glial cells. Increased activity of cPLA2 has been implicated in the neuropathology of Alzheimer's disease (AD), suggesting that cPLA2 regulation of oAβ-induced microglial activation may play a role in the AD pathology. We demonstrate that LPS, IFNγ, and oAβ increased phosphorylated cPLA2 (p-cPLA2) in immortalized mouse microglia (BV2). Aβ association with primary rat microglia and BV2 cells, possibly via membrane-binding and/or intracellular deposition, presumably indicative of microglia-mediated clearance of the peptide, was reduced by inhibition of cPLA2. However, cPLA2 inhibition did not affect the depletion of this associated Aβ when cells were washed and incubated in a fresh medium after oAβ treatment. Since the depletion was abrogated by NH4Cl, a lysosomal inhibitor, these results suggested that cPLA2 was not involved in the degradation of the associated Aβ. To further dissect the effects of cPLA2 on microglia cell membranes, atomic force microscopy (AFM) was used to determine endocytic activity. The force for membrane tether formation (Fmtf) is a measure of membrane-cytoskeleton connectivity and represents a mechanical barrier to endocytic vesicle formation. Inhibition of cPLA2 increased Fmtf in both unstimulated BV2 cells and cells stimulated with LPS + IFNγ. Thus, increasing p-cPLA2 would decrease Fmtf, thereby increasing endocytosis. These results suggest a role of cPLA2 activation in facilitating oAβ endocytosis by microglial cells through regulation of the membrane-cytoskeleton connectivity.
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Affiliation(s)
- Tao Teng
- Department of Bioengineering, University of Illinois at Chicago, 835 S Wolcott Ave, W100, Chicago, IL, 60612, USA
| | - Li Dong
- Department of Bioengineering, University of Missouri, Columbia, MO, 65211, USA
| | - Devin M Ridgley
- Department of Bioengineering, University of Illinois at Chicago, 835 S Wolcott Ave, W100, Chicago, IL, 60612, USA
| | - Shivesh Ghura
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Matthew K Tobin
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Mary Jo LaDu
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, 835 S Wolcott Ave, W100, Chicago, IL, 60612, USA.
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Yang B, Li R, Michael Greenlief C, Fritsche KL, Gu Z, Cui J, Lee JC, Beversdorf DQ, Sun GY. Unveiling anti-oxidative and anti-inflammatory effects of docosahexaenoic acid and its lipid peroxidation product on lipopolysaccharide-stimulated BV-2 microglial cells. J Neuroinflammation 2018; 15:202. [PMID: 29986724 PMCID: PMC6038194 DOI: 10.1186/s12974-018-1232-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 06/20/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Phospholipids in the central nervous system are enriched in n-3 and n-6 polyunsaturated fatty acids (PUFA), especially docosahexaenoic acid (DHA) and arachidonic acid (ARA). These PUFA can undergo enzymatic reactions to produce lipid mediators, as well as reaction with oxygen free radicals to produce 4-hydroxyhexenal (4-HHE) from DHA and 4-hydroxynonenal (4-HNE) from ARA. Recent studies demonstrated pleiotropic properties of these peroxidation products through interaction with oxidative and anti-oxidant response pathways. In this study, BV-2 microglial cells were used to investigate ability for DHA, 4-HHE, and 4-HNE to stimulate the anti-oxidant stress responses involving the nuclear factor erythroid-2-related factor 2 (Nrf2) pathway and synthesis of heme oxygenase (HO-1), as well as to mitigate lipopolysaccharide (LPS)-induced nitric oxide (NO), reactive oxygen species (ROS), and cytosolic phospholipase A2 (cPLA2). In addition, LC-MS/MS analysis was carried out to examine effects of exogenous DHA and LPS stimulation on endogenous 4-HHE and 4-HNE levels in BV-2 microglial cells. METHODS Effects of DHA, 4-HHE, and 4-HNE on LPS-induced NO production was determined using the Griess reagent. LPS-induced ROS production was measured using CM-H2DCFDA. Western blots were used to analyze expression of p-cPLA2, Nrf2, and HO-1. Cell viability and cytotoxicity were measured using the WST-1 assay, and cell protein concentrations were measured using the BCA protein assay kit. An ultra-high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis was used to determine levels of free 4-HHE and 4-HNE in cells. RESULTS DHA (12.5-100 μM), 4-HHE (1.25-10 μM), and 4-HNE (1.25-10 μM) dose dependently suppressed LPS-induced production of NO, ROS, and as p-cPLA2 in BV-2 microglial cells. With the same concentrations, these compounds could enhance Nrf2 and HO-1 expression in these cells. Based on the estimated IC50 values, 4-HHE and 4-HNE were five- to tenfold more potent than DHA in inhibiting LPS-induced NO, ROS, and p-cPLA2. LC-MS/MS analysis indicated ability for DHA (10-50 μM) to increase levels of 4-HHE and attenuate levels of 4-HNE in BV-2 microglial cells. Stimulation of cells with LPS caused an increase in 4-HNE which could be abrogated by cPLA2 inhibitor. In contrast, bromoenol lactone (BEL), a specific inhibitor for the Ca2+-independent phospholipase A2 (iPLA2), could only partially suppress levels of 4-HHE induced by DHA or DHA + LPS. CONCLUSIONS This study demonstrated the ability of DHA and its lipid peroxidation products, namely, 4-HHE and 4-HNE at 1.25-10 μM, to enhance Nrf2/HO-1 and mitigate LPS-induced NO, ROS, and p-cPLA2 in BV-2 microglial cells. In addition, LC-MS/MS analysis of the levels of 4-HHE and 4-HNE in microglial cells demonstrates that increases in production of 4-HHE from DHA and 4-HNE from LPS are mediated by different mechanisms.
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Affiliation(s)
- Bo Yang
- Chemistry Department, University of Missouri, Columbia, MO, USA
| | - Runting Li
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA
| | | | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, USA
| | - David Q Beversdorf
- Departments of Radiology, Neurology and Psychological Sciences, University of Missouri, Columbia, MO, USA
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA. .,Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA.
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Dang JL, Gleason ML, Li LN, Wang C, Niu CK, Zhang R, Sun GY. Alternaria malicola sp. nov., a New Pathogen Causing Fruit Spot on Apple in China. Plant Dis 2018; 102:1273-1282. [PMID: 30673577 DOI: 10.1094/pdis-07-17-1027-re] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Alternaria spp. are pathogens of several diseases that pose significant threats to apple production. Several putative Alternaria sp. isolates were obtained from lesions of a disease commonly referred to as black dot on apple fruit in Shaanxi Province, China. Pathogenicity tests using mycelial plugs and conidial suspensions indicated that this isolate could cause leaf blotch, as well as moldy core and black dot on fruit. On the basis of sequence analysis of glyceraldehyde-3-phosphate dehydrogenase (GAPDH), RNA polymerase second largest subunit, and translation elongation factor 1-α, an isolate clustered with the Alternaria sect. Ulocladioides. By combining GAPDH, major allergen Alta1, mating type protein 1-2-1, and the AGA1 gene sequence analysis and morphological description, the isolates were identified as a new species named Alternaria malicola. Our finding expands the documented diversity of apple pathogens within the genus Alternaria and clarifies the taxonomy of the pathogen assemblage that may be associated with three apple diseases.
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Affiliation(s)
- J L Dang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - M L Gleason
- Department of Plant Pathology and Microbiology, Iowa State University, Ames 50011
| | - L N Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - C Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - C K Niu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - R Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - G Y Sun
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
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Sun GY, Wang SL, Tang Y, Jin J, Song YW, Liu YP, Wang WH, Fang H, Chen SY, Ren H, Liu XF, Yu ZH, Li YX. [Clinical characteristics and prognosis of patients with ipsilateral breast tumor recurrence after breast conservation therapy]. Zhonghua Zhong Liu Za Zhi 2018; 40:352-358. [PMID: 29860762 DOI: 10.3760/cma.j.issn.0253-3766.2018.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical features and prognosis of the ipsilateral breast tumor recurrence (IBTR) after breast conserving surgery. Methods: From 1999 to 2013, 63 women with IBTR after breast conserving surgery were retrospectively reviewed. All patients had adequate information on tumor location both at first presentation and at recurrence, with or without regional recurrence or distant metastasis. The histologic changes between true local recurrence and elsewhere recurrence groups were compared. The local recurrence, the overall survival after IBTR (IBTR-OS), the disease-free survival after IBTR (IBTR-DFS) were also compared. Results: All patients had undergone lumpectomy, including 38 cases with additional axillary lymph node dissection and 13 cases with sentinel lymph node biopsy. There were 11.3% (7/63) cases received neoadjuvant systemic therapy, 68.3% (43/63) had adjuvant radiotherapy, 60.3% (38/63) underwent adjuvant chemotherapy and 47.6% (30/63) received hormonal therapy. Forty-five cases (71.4%) had recurrence in the same quadrant, and 18 cases (28.6%) had elsewhere recurrence. Compared with histology at presentation, 10.3% of the patients (6/58) had different ones at recurrence and 28.9% of patients (13/45) had different molecular subtypes. The conversion rate of estrogen receptor status (33.3% vs 9.5%, P=0.012) and progesterone receptor status (56.3% vs 19.0%, P=0.005) in patients with elsewhere recurrence was significantly higher than that in patients with same quadrant recurrence. Fifty-nine cases had undergone surgery after IBTR, with 48 cases of secondary breast-conserving surgery and 11 cases of salvage mastectomy. The median time to IBTR of same quadrant recurrence and elsewhere recurrence groups were 26 months and 62 months (P=0.012), respectively. There were 84.4% and 44.4% cases who had local recurrence within 5 years after breast conserving surgery, respectively. Of all cases, the overall 5-year IBTR-OS and 5-year IBTR-DFS rates were 79.4% and 60.4%, respectively. There were no significant differences in 5-year IBTR-OS (77.4% vs. 83.6%, P=0.303) or 5-year IBTR-DFS (60.0% vs. 62.8%, P=0.780) between same quadrant recurrence and elsewhere recurrence groups. Univariate analysis showed that pN0-1 (P<0.001), luminal subtype (P=0.026), adjuvant endocrine therapy (P=0.007) at first presentation, recurrent tumor < 3 cm (P=0.036) and having surgery after IBTR(P=0.002) were favorable factors of IBTR-OS. pN0-1 (P<0.001) at first presentation, recurrent tumor stage Ⅰ-Ⅱ (P<0.001) and having surgery after IBTR(P=0.001) were favorable factors of IBTR-DFS. There was no significant difference between second breast-conserving surgery and salvage mastectomy in IBTR-OS and IBTR-DFS (P>0.05). Conclusions: The IBTR after breast conserving surgery mainly occurred at the original quadrant. Second breast-conserving surgery did not affect patient's prognosis. There were significant differences in biological features between the same quadrant recurrence and elsewhere recurrence, requiring different therapeutic strategies in the future.
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Affiliation(s)
- G Y Sun
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S L Wang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y W Song
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y P Liu
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W H Wang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Fang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S Y Chen
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Ren
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X F Liu
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z H Yu
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y X Li
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Wu JS, Kao MH, Tsai HD, Cheung WM, Chen JJ, Ong WY, Sun GY, Lin TN. Clinacanthus nutans Mitigates Neuronal Apoptosis and Ischemic Brain Damage Through Augmenting the C/EBPβ-Driven PPAR-γ Transcription. Mol Neurobiol 2017; 55:5425-5438. [PMID: 28942553 DOI: 10.1007/s12035-017-0776-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/15/2017] [Indexed: 02/07/2023]
Abstract
Clinacanthus nutans Lindau (C. nutans) is a traditional herbal medicine widely used in Asian countries for treating a number of remedies including snake and insect bites, skin rashes, viral infections, and cancer. However, the underlying molecular mechanisms for its action and whether C. nutans can offer protection on stroke damage in brain remain largely unknown. In the present study, we demonstrated protective effects of C. nutans extract to ameliorate neuronal apoptotic death in the oxygen-glucose deprivation model and to reduce infarction and mitigate functional deficits in the middle cerebral artery occlusion model, either administered before or after hypoxic/ischemic insult. Using pharmacological antagonist and siRNA knockdown approaches, we demonstrated ability for C. nutans extract to protect neurons and ameliorate ischemic injury through promoting the anti-apoptotic activity of peroxisome proliferator-activated receptor-gamma (PPAR-γ), a stress-induced transcription factor. Reporter and chromatin immunoprecipitation promoter analysis further revealed C. nutans extract to selectively increase CCAAT/enhancer binding protein (C/EBP)β binding to specific C/EBP binding site (-332~-325) on the PPAR-γ promoter to augment its transcription. In summary, we report a novel transcriptional activation involving C/EBPβ upregulation of PPAR-γ expression to suppress ischemic neuronal apoptosis and brain infarct. Recognition of C. nutans to enhance the C/EBPβ → PPAR-γ neuroprotective signaling pathway paves a new way for future drug development for prevention and treatment of ischemic stroke and other neurodegenerative diseases.
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Affiliation(s)
- Jui-Sheng Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China
| | - Mei-Han Kao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China
| | - Hsin-Da Tsai
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China
| | - Wai-Mui Cheung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China
| | - Jin-Jer Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China
| | - Wei-Yi Ong
- Department of Anatomy, National University of Singapore, Singapore, Singapore
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - Teng-Nan Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan, Republic of China. .,Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Republic of China.
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Dang JL, Gleason ML, Niu CK, Liu X, Guo YZ, Zhang R, Sun GY. Effects of Fungicides and Spray Application Interval on Controlling Marssonina Blotch of Apple in the Loess Plateau Region of China. Plant Dis 2017; 101:568-575. [PMID: 30677361 DOI: 10.1094/pdis-04-16-0464-re] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Marssonina blotch, caused by the fungus Marssonina coronariae, is a serious foliar disease on apple in East Asia as well as in other moist temperate regions in Asia, Europe, and South America. Several fungicides were investigated for their toxicity to mycelial growth and conidial germination of the pathogen in vitro. Tebuconazole, kresoxim-methyl, hexaconazole, propiconazole, and a mixture of tebuconazole and benziothiazolinone sharply inhibited mycelial growth but had less effect on conidial germination. Field tests were conducted in a commercial orchard in Baishui County, Shaanxi Province, China, during 2012, 2013, 2014, and 2015 in order to develop recommendations for apple growers. Three applications of tebuconazole, hexaconazole, propiconazole, or a mixture of tebuconazole and benziothiazolinone at 20-day intervals from early July to late August resulted in defoliation incidence of <5%. When sprays of Bordeaux mixture + tebuconazole, Bordeaux mixture + propiconazole, and Bordeaux mixture + tebuconazole and benziothiazolinone were alternated, the spray interval was extended to 25 days and defoliation incidence remained <5%. Based on historical records and our results, scouting for symptoms should begin in mid-June. We recommend commencing the spray period in early July in years with normal rainfall patterns, and spraying in mid- to late June in years with much rainfall. The findings of this study create a foundation for implementation of an efficient spray program against Marssonina leaf blotch in apple orchards in the Loess Plateau Region of China.
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Affiliation(s)
- J L Dang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - M L Gleason
- Department of Plant Pathology and Microbiology, Iowa State University, Ames 50011
| | - C K Niu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - X Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - Y Z Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - R Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
| | - G Y Sun
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University
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Ni Y, Teng T, Li R, Simonyi A, Sun GY, Lee JC. TNFα alters occludin and cerebral endothelial permeability: Role of p38MAPK. PLoS One 2017; 12:e0170346. [PMID: 28170408 PMCID: PMC5295672 DOI: 10.1371/journal.pone.0170346] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 01/03/2017] [Indexed: 11/22/2022] Open
Abstract
Occludin is a key tight junction (TJ) protein in cerebral endothelial cells (CECs) playing an important role in modulating blood-brain barrier (BBB) functions. This protein (65kDa) has been shown to engage in many signaling pathways and phosphorylation by both tyrosine and threonine kinases. Despite yet unknown mechanisms, pro-inflammatory cytokines and endotoxin (lipopolysaccharides, LPS) may alter TJ proteins in CECs and BBB functions. Here we demonstrate the responses of occludin in an immortalized human cerebral endothelial cell line (hCMEC/D3) to stimulation by TNFα (10 ng/mL), IL-1β (10 ng/mL) and LPS (100 ng/mL). Exposing cells to TNFα resulted in a rapid and transient upward band-shift of occludin, suggesting of an increase in phosphorylation. Exposure to IL-1β produced significantly smaller effects and LPS produced almost no effects on occludin band-shift. TNFα also caused transient stimulation of p38MAPK and ERK1/2 in hCMEC/D3 cells, and the occludin band-shift induced by TNFα was suppressed by SB202190, an inhibitor for p38MAPK, and partly by U0126, the MEK1/2-ERK1/2 inhibitor. Cells treated with TNFα and IL-1β but not LPS for 24 h resulted in a significant (p < 0.001) decrease in the expression of occludin, and the decrease could be partially blocked by SB202190, the inhibitor for p38MAPK. Treatment with TNFα also altered cell morphology and enhanced permeability of the CEC layer as measured by the FITC-dextran assay and the trans-endothelial electrical resistances (TEER). However, treatment with SB202190 alone could not effectively reverse the TNFα -induced morphology changes or the enhanced permeability changes. These results suggest that despite effects of TNFα on p38MAPK-mediated occludin phosphorylation and expression, these changes are not sufficient to avert the TNFα-induced alterations on cell morphology and permeability.
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Affiliation(s)
- Yawen Ni
- Department of Bioengineering, University of Missouri, Columbia, Missouri, United States of America
| | - Tao Teng
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Runting Li
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Agnes Simonyi
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois, United States of America
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Sun GY, Chen MQ, Huang YW. Evaluation on the air-borne ultrasound-assisted hot air convection thin-layer drying performance of municipal sewage sludge. Ultrason Sonochem 2017; 34:588-599. [PMID: 27773284 DOI: 10.1016/j.ultsonch.2016.06.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/23/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
The thin-layer drying behavior of the municipal sewage sludge in a laboratory-scale hot air forced convective dryer assisted with air-borne ultrasound was investigated in between 70 and 130°C hot air temperatures. The drying kinetics in the convective process alone were compared to that for ultrasound-assist process at three ultrasound powers (30, 90, 150W). The average drying rates within whole drying temperature range at ultrasound powers of 30, 90 and 150W increased by about 22.6%, 27.8% and 32.2% compared with the convective drying alone (without ultrasound). As the temperature increasing from 70°C to 130°C, there were maximum increasing ratios for the effective moisture diffusivities of the sewage sludge in both falling rate periods at ultrasonic power of 30W in comparison with other two high powers. In between the ultrasound powers of 0 and 30W, the effect of the power on the drying rate was significant, while its effect was not obvious over 30W. Therefore, the low ultrasonic power can be just set in the drying process. The values of the apparent activation energy in the first falling rate period were down from 13.52 to 12.78kJmol-1, and from 17.21 to 15.10kJmol-1 for the second falling rate period with increasing the ultrasonic power from 30 to 150W. The values of the apparent activation energy in two falling rate periods with the ultrasound-assist were less than that for the hot air convective drying alone.
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Affiliation(s)
- G Y Sun
- Institute of Thermal Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale, Beijing 100044, China
| | - M Q Chen
- Institute of Thermal Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale, Beijing 100044, China.
| | - Y W Huang
- Institute of Thermal Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale, Beijing 100044, China
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Tang J, Sun GY, Chen T, Wang YD, Zhang J, Qi XQ. [Effect of intracoronary autologous bone marrow mononuclear cells transplantation on arrhythmia in canines]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:1030-1035. [PMID: 28056234 DOI: 10.3760/cma.j.issn.0253-3758.2016.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the survival and the differentiation of grafted bone marrow cells (BM-MNCs) in host myocardium. To observe whether BM-MNCs transplantation can potentially cause arrhythmia and whether the BM-MNCs transplantation can alter the spatial distribution of connexins, important mediator for arrhythmia genesis after myocardial infarction. Methods: Acute myocardial infarction (AMI) was induced by left anterior descending coronary artery (LAD) ligation in hybrid canine. BM-MNCs suspension was prepared by density centrifugation. The BM-MNCs were labeled with CM-DiI. Sixteen hybrid canines were randomly divided into transplantation group and control group. BM-MNCs (transplantation group, n=10) or saline (control group, n=6) were intracoronarily infused into infarction related artery at 2 hours after AMI. At 6 weeks after AMI, ventricular fibrillation (VF) was induced in infarct area and periinfarct area. The effective refractive period (ERP) of different areas in myocardium was assessed and the expression of connexin 43 (Cx43) was assessed by immunohistochemical staining. Results: Six weeks after the BM-MNCs transplantation, CM-DiI labeled BM-MNCs were mainly located within periinfarct and infarct area. Some BM-MNCs were positive for Cx43. Combined" CM-DiI and FITC" in images were observed. VF was induced in 2 out of the 10 canines in transplantation group and in 2 out of the 6 canines in control group in infarct area. VF was not induced in periinfarct area of both groups. The ERP of infarct area ((85.0±9.3) ms vs. (90.0±7.1)ms, P>0.05), periinfarct area (87.8±9.4 vs. 90.0±7.1, P>0.05) and normal area (85.0±12.0 vs. 88.3±9.4, P>0.05) was similar between transplantation group and control group. The expression of Cx43 in normal area was similar between transplantation group and control group (3 543.7±446.0 vs. 3 431.7±421.5, P>0.05). The expression of Cx43 in periinfarct area of transplantation group was significantly higher than that in control group (2 312.5±412.0 vs. 1 356.2±332.7, P<0.05), but was still much less than in normal area (2 312.5±412.0 vs. 3 543.7±446.0, P<0.05). The expression of Cx43 in infarct area was similar between transplantation group and control group (327.0±98.7 vs. 311.3±78.7, P>0.05). Conclusions: The implanted BM-MNCs could survive in the infarcted lesion and differentiate into cells expressing Cx43.In transplanted group, VF was not induced in periinfarct area. ERP of infarct area, periinfarct area and normal area is similar between two groups. The expression of Cx43 in periinfarct area was significantly higher in transplantation group than that in control group.
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Affiliation(s)
- J Tang
- *The Affiliated Hospital of Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China
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Lei W, Browning JD, Eichen PA, Folk WR, Sun GY, Lubahn DB, Fritsche KL. An Investigation into the Immunomodulatory Activities of Sutherlandia frutescens in Healthy Mice. PLoS One 2016; 11:e0160994. [PMID: 27575007 PMCID: PMC5004858 DOI: 10.1371/journal.pone.0160994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/28/2016] [Indexed: 11/18/2022] Open
Abstract
Sutherlandia frutescens is a medicinal plant that has been traditionally used in southern Africa for cancers, infections, and inflammatory conditions. We recently published experiments demonstrating that an aqueous extract of S. frutescens possessed potent immune-stimulatory activity. This work was carried out with murine macrophages, an immune cell type that plays a pivotal role in host defense from infection and in shaping host inflammatory and immune responses. Here, we conducted a series of follow-up experiments to explore the impact of consuming S. frutescens on host response to bacterial challenge using healthy mice. We found that feeding mice a diet containing S. frutescens failed to significantly alter host response to systemic infection by either a gram-positive or gram-negative bacterium (i.e., L. monocytogenes and E. coli, respectively). In contrast to the in vitro observations, we found no evidence that S. frutescens consumption stimulated in vivo inflammatory responses; instead, consumption of S. frutescens tended to diminish in vivo inflammatory responses. Several possible reasons for this are discussed.
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Affiliation(s)
- Wei Lei
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Jimmy D. Browning
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Peggy A. Eichen
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - William R. Folk
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Grace Y. Sun
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Dennis B. Lubahn
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Kevin L. Fritsche
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States of America
- * E-mail:
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Wang WJ, Lu HQ, Sun GY. [Detection technique of extravascular lung water and its application in severe cases]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:632-636. [PMID: 27523901 DOI: 10.3760/cma.j.issn.1001-0939.2016.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Xu YL, Jia X, Guo W, Liu XP, Du X, Sun GY, Zhang J, Jia SH, Hu ZZ. [Drug coated balloon with paclitaxel for the treatment of symptomatic peripheral artery disease: early and midterm results]. Zhonghua Wai Ke Za Zhi 2016; 54:617-9. [PMID: 27502138 DOI: 10.3760/cma.j.issn.0529-5815.2016.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of the drug coated balloon (DCB) with paclitaxel in patients with symptomatic peripheral artery disease (PAD). METHODS The clinical data of 18 patients, who were diagnosed as PAD and treated with DCB from October 2013 to June 2014 in Department of Vascular Surgery, People's Liberation Army General Hospital, were retrospectively analyzed.Thirteen male and 5 female patients were in the series, the mean age of the patients was (65±7) years, and the Rutherford's categories were level 3 to 5. Patients were followed up at 3- and 6-month postoperative. The main efficacy end point were late lumen loss(LLL), rate of restenosis and clinically driven target lesion revascularization (TLR). Meanwhile, the clinical events were recorded. RESULTS Mean lesion length, the percentage of total occlusions and the percentage of in-stent restenosis were (138±91) mm, 9/18 and 2/18, respectively. Rate of technical success was 18/18. At 6-month postoperative, LLL, rate of restenosis and TLR were (0.1±0.9) mm, 2/14 and 0, respectively. There was no deaths or no amputations. CONCLUSION DCB with paclitaxel is safe in patients with PAD, and associated with reductions in LLL, restenosis and clinically driven TLR 6-month postoperative.
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Affiliation(s)
- Y L Xu
- Department of Vascular Surgery, People's Liberation Army General Hospital, Beijing 100853, China
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Chuang DY, Simonyi A, Cui J, Lubahn DB, Gu Z, Sun GY. Botanical Polyphenols Mitigate Microglial Activation and Microglia-Induced Neurotoxicity: Role of Cytosolic Phospholipase A2. Neuromolecular Med 2016; 18:415-25. [PMID: 27339657 DOI: 10.1007/s12017-016-8419-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 06/11/2016] [Indexed: 01/17/2023]
Abstract
Microglia play a significant role in the generation and propagation of oxidative/nitrosative stress, and are the basis of neuroinflammatory responses in the central nervous system. Upon stimulation by endotoxins such as lipopolysaccharides (LPS), these cells release pro-inflammatory factors which can exert harmful effects on surrounding neurons, leading to secondary neuronal damage and cell death. Our previous studies demonstrated the effects of botanical polyphenols to mitigate inflammatory responses induced by LPS, and highlighted an important role for cytosolic phospholipase A2 (cPLA2) upstream of the pro-inflammatory pathways (Chuang et al. in J Neuroinflammation 12(1):199, 2015. doi: 10.1186/s12974-015-0419-0 ). In this study, we investigate the action of botanical compounds and assess whether suppression of cPLA2 in microglia is involved in the neurotoxic effects on neurons. Differentiated SH-SY5Y neuroblastoma cells were used to test the neurotoxicity of conditioned medium from stimulated microglial cells, and WST-1 assay was used to assess for the cell viability of SH-SY5Y cells. Botanicals such as quercetin and honokiol (but not cyanidin-3-O-glucoside, 3CG) were effective in inhibiting LPS-induced nitric oxide (NO) production and phosphorylation of cPLA2. Conditioned medium from BV-2 cells stimulated with LPS or IFNγ caused neurotoxicity to SH-SY5Y cells. Decrease in cell viability could be ameliorated by pharmacological inhibitors for cPLA2 as well as by down-regulating cPLA2 with siRNA. Botanicals effective in inhibition of LPS-induced NO and cPLA2 phosphorylation were also effective in ameliorating microglial-induced neurotoxicity. Results demonstrated cytotoxic factors from activated microglial cells to cause damaging effects to neurons and potential use of botanical polyphenols to ameliorate the neurotoxic effects.
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Affiliation(s)
- Dennis Y Chuang
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA.,Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Agnes Simonyi
- Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA
| | - Jiankun Cui
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA.,Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA.,Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA
| | - Dennis B Lubahn
- Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA
| | - Zezong Gu
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA.,Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA.,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA.,Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA
| | - Grace Y Sun
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA. .,Center for Translational Neuroscience, University of Missouri, Columbia, MO, USA. .,Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA. .,Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.
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Qu Z, Mossine VV, Cui J, Sun GY, Gu Z. Protective Effects of AGE and Its Components on Neuroinflammation and Neurodegeneration. Neuromolecular Med 2016; 18:474-82. [PMID: 27263111 DOI: 10.1007/s12017-016-8410-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 05/17/2016] [Indexed: 01/01/2023]
Abstract
Garlic (Allium sativum) is used for culinary and medicinal purposes in diverse cultures worldwide. When fresh garlic is soaked in aqueous ethanol under ambient environment over 4 months or longer, the majority of irritating taste and odor is eliminated and the antioxidant profile in the resulting aged garlic extract (AGE) changes significantly. Recently, AGE and its components have been demonstrated to exert neuroprotective effects in neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, Huntington's disease, and cerebral ischemia. Because of its health supporting potential, there is increasing interest in understanding the antioxidant and anti-inflammatory properties and the underlying mechanisms for its protective effects in heath and disease. There is evidence for AGE to exert its action on distinct signaling pathways associated with oxidative stress and neuroinflammation, although the primary molecular mechanisms remain unclear. By utilizing quantitative proteomic approaches, we demonstrated that AGE and two of its major ingredients, S-allyl-L-cysteine and N (α)-(1-deoxy-D-fructos-1-yl)-L-arginine, can attenuate neuroinflammatory responses in microglial cells through modulation of Nrf2-mediated signaling as well as other oxidative stress-related pathways. These experimental data provide information for the molecular targets of AGE and its components to mitigate neurodegeneration and neuroinflammation and show a promising potential of these compounds as dietary supplements for health maintenance.
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Affiliation(s)
- Zhe Qu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, M263 Medical Science Building, One Hospital Drive, Columbia, MO, 65212, USA.,Center for Translational Neuroscience, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Valeri V Mossine
- Department of Biochemistry, University of Missouri School of Medicine, Columbia, MO, 65211, USA
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, M263 Medical Science Building, One Hospital Drive, Columbia, MO, 65212, USA.,Center for Translational Neuroscience, University of Missouri School of Medicine, Columbia, MO, 65212, USA.,Harry S. Truman Veterans Hospital, Columbia, MO, 65212, USA
| | - Grace Y Sun
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, M263 Medical Science Building, One Hospital Drive, Columbia, MO, 65212, USA.,Center for Translational Neuroscience, University of Missouri School of Medicine, Columbia, MO, 65212, USA.,Department of Biochemistry, University of Missouri School of Medicine, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, M263 Medical Science Building, One Hospital Drive, Columbia, MO, 65212, USA. .,Center for Translational Neuroscience, University of Missouri School of Medicine, Columbia, MO, 65212, USA. .,Harry S. Truman Veterans Hospital, Columbia, MO, 65212, USA.
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Sun GY, Li R, Cui J, Hannink M, Gu Z, Fritsche KL, Lubahn DB, Simonyi A. Withania somnifera and Its Withanolides Attenuate Oxidative and Inflammatory Responses and Up-Regulate Antioxidant Responses in BV-2 Microglial Cells. Neuromolecular Med 2016; 18:241-52. [PMID: 27209361 DOI: 10.1007/s12017-016-8411-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/17/2016] [Indexed: 12/18/2022]
Abstract
Withania somnifera (L.) Dunal, commonly known as Ashwagandha, has been used in Ayurvedic medicine for promoting health and quality of life. Recent clinical trials together with experimental studies indicated significant neuroprotective effects of Ashwagandha and its constituents. This study is aimed to investigate anti-inflammatory and anti-oxidative properties of this botanical and its two withanolide constituents, namely, Withaferin A and Withanolide A, using the murine immortalized BV-2 microglial cells. Ashwagandha extracts not only effectively inhibited lipopolysaccharide (LPS)-induced nitric oxide (NO) and reactive oxygen species (ROS) production in BV-2 cells, but also stimulates the Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) pathway, leading to induction of heme oxygenase-1 (HO-1), both in the presence and absence of LPS. Although the withanolides were also capable of inhibiting LPS-induced NO production and stimulating Nrf2/HO-1 pathway, Withaferin A was tenfold more effective than Withanolide A. In serum-free culture, LPS can also induce production of long thin processes (filopodia) between 4 and 8 h in BV-2 cells. This morphological change was significantly suppressed by Ashwagandha and both withanolides at concentrations for suppressing LPS-induced NO production. Taken together, these results suggest an immunomodulatory role for Ashwagandha and its withanolides, and their ability to suppress oxidative and inflammatory responses in microglial cells by simultaneously down-regulating the NF-kB and upregulating the Nrf2 pathways.
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Affiliation(s)
- Grace Y Sun
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA. .,Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, USA. .,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA.
| | - Runting Li
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Mark Hannink
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Kevin L Fritsche
- Department of Animal Sciences, University of Missouri, Columbia, MO, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Dennis B Lubahn
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.,Department of Animal Sciences, University of Missouri, Columbia, MO, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Agnes Simonyi
- Biochemistry Department, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.,MU Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
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Ajit D, Simonyi A, Li R, Chen Z, Hannink M, Fritsche KL, Mossine VV, Smith RE, Dobbs TK, Luo R, Folk WR, Gu Z, Lubahn DB, Weisman GA, Sun GY. Phytochemicals and botanical extracts regulate NF-κB and Nrf2/ARE reporter activities in DI TNC1 astrocytes. Neurochem Int 2016; 97:49-56. [PMID: 27166148 DOI: 10.1016/j.neuint.2016.05.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 04/29/2016] [Accepted: 05/03/2016] [Indexed: 11/19/2022]
Abstract
The increase in oxidative stress and inflammatory responses associated with neurodegenerative diseases has drawn considerable attention towards understanding the transcriptional signaling pathways involving NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) and Nrf2 (Nuclear Factor Erythroid 2-like 2). Our recent studies with immortalized murine microglial cells (BV-2) demonstrated effects of botanical polyphenols to inhibit lipopolysaccharide (LPS)-induced nitric oxide (NO) and enhance Nrf2-mediated antioxidant responses (Sun et al., 2015). In this study, an immortalized rat astrocyte (DI TNC1) cell line expressing a luciferase reporter driven by the NF-κB or the Nrf2/Antioxidant Response Element (ARE) promoter was used to assess regulation of these two pathways by phytochemicals such as quercetin, rutin, cyanidin, cyanidin-3-O-glucoside, as well as botanical extracts from Withania somnifera (Ashwagandha), Sutherlandia frutescens (Sutherlandia) and Euterpe oleracea (Açaí). Quercetin effectively inhibited LPS-induced NF-κB reporter activity and stimulated Nrf2/ARE reporter activity in DI TNC1 astrocytes. Cyanidin and the glycosides showed similar effects but only at much higher concentrations. All three botanical extracts effectively inhibited LPS-induced NF-κB reporter activity. These extracts were capable of enhancing ARE activity by themselves and further enhanced ARE activity in the presence of LPS. Quercetin and botanical extracts induced Nrf2 and HO-1 protein expression. Interestingly, Ashwagandha extract was more active in inducing Nrf2 and HO-1 expression in DI TNC1 astrocytes as compared to Sutherlandia and Açaí extracts. In summary, this study demonstrated NF-kB and Nrf2/ARE promoter activities in DI TNC1 astrocytes, and further showed differences in ability for specific botanical polyphenols and extracts to down-regulate LPS-induced NF-kB and up-regulate the NRF2/ARE activities in these cells.
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Affiliation(s)
- Deepa Ajit
- Biochemistry Department, University of Missouri, Columbia, MO, USA
| | - Agnes Simonyi
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Runting Li
- Biochemistry Department, University of Missouri, Columbia, MO, USA
| | - Zihong Chen
- Biochemistry Department, University of Missouri, Columbia, MO, USA
| | - Mark Hannink
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Kevin L Fritsche
- Department of Animal Sciences, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Valeri V Mossine
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | | | | | - Rensheng Luo
- Department of Chemistry and Biochemistry, University of Missouri, St. Louis, MO, USA
| | - William R Folk
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Dennis B Lubahn
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA
| | - Gary A Weisman
- Biochemistry Department, University of Missouri, Columbia, MO, USA
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, USA; Center for Botanical Interaction Studies, University of Missouri, Columbia, MO, USA.
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Peng HX, Wei XY, Xiao YX, Sun Y, Biggs AR, Gleason ML, Shang SP, Zhu MQ, Guo YZ, Sun GY. Management of Valsa Canker on Apple with Adjustments to Potassium Nutrition. Plant Dis 2016; 100:884-889. [PMID: 30686143 DOI: 10.1094/pdis-09-15-0970-re] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Valsa canker, caused by the fungus Valsa mali, is one of the most destructive diseases of apple in the primary production areas of China and other East Asian countries. Currently, there are no effective control methods for this disease. We investigated the occurrence of Valsa canker in 24 apple orchards in Shaanxi Province in concert with foliar nutrient analysis, and found that there was a significant negative correlation of leaf potassium (K) content with incidence and severity of Valsa canker. Fertilization experiments showed that increasing tree K content enhanced resistance to pathogen colonization and establishment. Apple trees with leaf K content greater than 1.30% exhibited almost complete resistance to Valsa mali. Field trials demonstrated that increasing K fertilization could significantly reduce disease incidence. Improved management of tree nutrition, especially K content, could effectively control the occurrence and development of Valsa canker.
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Affiliation(s)
- H X Peng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - X Y Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Y X Xiao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Y Sun
- Faculty of Science, National University of Singapore, Singapore 117543
| | - A R Biggs
- Kearneysville Tree Fruit Research and Education Center, West Virginia University, Kearneysville 25443
| | - M L Gleason
- Department of Plant Pathology and Microbiology, Iowa State University, Ames 50011
| | - S P Shang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University
| | - M Q Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University
| | - Y Z Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University
| | - G Y Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University
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50
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Lei W, Browning JD, Eichen PA, Brownstein KJ, Folk WR, Sun GY, Lubahn DB, Rottinghaus GE, Fritsche KL. Unveiling the anti-inflammatory activity of Sutherlandia frutescens using murine macrophages. Int Immunopharmacol 2015; 29:254-262. [PMID: 26585972 DOI: 10.1016/j.intimp.2015.11.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/20/2015] [Accepted: 11/08/2015] [Indexed: 12/23/2022]
Abstract
Sutherlandia frutescens is a botanical widely used in southern Africa for treatment of inflammatory and other conditions. Previously, an ethanolic extract of S. frutescens (SFE) has been shown to inhibit the production of reactive oxygen species (ROS) and nitric oxide (NO) by murine neurons and a microglia cell line (BV-2 cells). In this study we sought to confirm the anti-inflammatory activities of SFE on a widely used murine macrophage cell line (i.e., RAW 264.7 cells) and primary mouse macrophages. Furthermore, experiments were conducted to investigate the anti-inflammatory activity of the flavonol and cycloartanol glycosides found in high quantities in S. frutescens. While the SFE exhibited anti-inflammatory activities upon murine macrophages similar to that reported with the microglia cell line, this effect does not appear to be mediated by sutherlandiosides or sutherlandins. In contrast, chlorophyll in our extracts appeared to be partly responsible for some of the activity observed in our macrophage-dependent screening assay.
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Affiliation(s)
- Wei Lei
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Jimmy D Browning
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Peggy A Eichen
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Korey J Brownstein
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - William R Folk
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - Dennis B Lubahn
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - George E Rottinghaus
- Veterinary Medical Diagnostic Laboratory, University of Missouri, Columbia, MO 65211, USA
| | - Kevin L Fritsche
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211, USA.
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