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Gautam N, Chattopadhyay S, Kar S, Sarkar A. Real-time detection of plasma ferritin by electrochemical biosensor developed for biomedical analysis. J Pharm Biomed Anal 2023; 235:115579. [PMID: 37517244 DOI: 10.1016/j.jpba.2023.115579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/18/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023]
Abstract
Rapid quantification of plasma ferritin levels holds utmost importance for the effective management of different chronic illnesses. We report the development of a novel biosensor for quantitative and selective detection of ferritin from a drop of blood plasma. Developed electrochemical biosensing platform contains a semiconductor nano-structured decorated screen-printed electrode (SND-SPE). The hydrothermally synthesized ZnO-Mn3O4 nanocomposite which has been coated on the electrode surfaces, imparts the specificity in ferritin diagnostics. Cyclic voltametric (CV) measurements with blood plasma shows a prominent reduction peak of ∼ - 0.76 V for specific ferritin reduction. The amperometric sensor shows a known concentration of 0.3 µg/dl ferritin-containing plasma generates 15 µA of current for single-time use. The efficacy of the device is evaluated by detecting ferritin in human plasma samples. The limit of detection and response time of the developed sensor are 0.04 µg/dl and 0.1 s respectively. The layer of ZnO-Mn3O4 nanocomposite has played as an excellent catalyst during the specific reduction of Fe3+ ion and the merits of the device in terms of high robustness, ultrafast detection, highly stable, low-cost, and a biodegradable sensor, make it attractive for the deployment in point-of-care settings.
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Affiliation(s)
- Neha Gautam
- Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Sudip Chattopadhyay
- Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur 721302, India
| | - Shantimoy Kar
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Arnab Sarkar
- Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India.
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2
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Xue M, Zhang T, Lin R, Zeng Y, Cheng ZJ, Li N, Zheng P, Huang H, Zhang XD, Wang H, Sun B. Clinical utility of heparin‐binding protein as an acute‐phase inflammatory marker in interstitial lung disease. J Leukoc Biol 2022; 112:861-873. [PMID: 35156235 DOI: 10.1002/jlb.3ma1221-489r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Mingshan Xue
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Teng Zhang
- Faculty of Health Sciences University of Macau Taipa Macau China
| | - Runpei Lin
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Yifeng Zeng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Zhangkai Jason Cheng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Ning Li
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Peiyan Zheng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | - Huimin Huang
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
| | | | - Hongman Wang
- Department of Respiratory and Critical Care Medicine The Fifth Affiliated Hospital of Zunyi Medical University Zhuhai China
| | - Baoqing Sun
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease Guangzhou Institue of Respiratory Health Guangzhou 510120 China
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Tong M, Zheng Q, Chen F, Zhu Y. Comment on: Cell adhesion molecules and vascular endothelial growth factor at the systemic and alveolar level in COVID-19 ARDS. J Infect Dis 2021; 224:1103-1104. [PMID: 34192326 DOI: 10.1093/infdis/jiab348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/29/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ming Tong
- Department of Infectious Diseases, The First-affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China.,Institute of Emergency Medicine, Hunan Provincial Key Laboratory of Emergency and Critical Care Metabonomics, The First-affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Qing Zheng
- Department of Geriatrics, The First-affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Fang Chen
- Institute of Emergency Medicine, Hunan Provincial Key Laboratory of Emergency and Critical Care Metabonomics, The First-affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Yimin Zhu
- Institute of Emergency Medicine, Hunan Provincial Key Laboratory of Emergency and Critical Care Metabonomics, The First-affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
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Jiang L, Ni J, Shen G, Xia Z, Zhang L, Xia S, Pan S, Qu H, Li X. Upregulation of endothelial cell-derived exosomal microRNA-125b-5p protects from sepsis-induced acute lung injury by inhibiting topoisomerase II alpha. Inflamm Res 2021; 70:205-216. [PMID: 33386874 PMCID: PMC7776283 DOI: 10.1007/s00011-020-01415-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 10/10/2020] [Accepted: 10/20/2020] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Emerging evidence has revealed that exosomal microRNAs (miRNAs) are implicated in human diseases. However, role of exosomal miR-125b-5p in sepsis-induced acute lung injury (ALI) remains further explored. We focused on the effect of exosomal miR-125b-5p on ALI progression via targeting topoisomerase II alpha (TOP2A). METHODS The ALI mouse models were established by cecal ligation and perforation, which were then treated with miR-125b-5p agomir or overexpressed TOP2A. Next, the pathological structure of ALI mouse lung tissues were observed, miR-125b-5p, TOP2A and vascular endothelial growth factor (VEGF) expression was determined, and the lung water content, inflammatory response, protein content in bronchoalveolar lavage fluid (BALF) and cell apoptosis in ALI mouse lung tissues were assessed. Exosomes were extracted from endothelial cells (ECs) and identified, which were then injected into the modeled mice to observe their roles in ALI. The targeting relationship between miR-125b-5p and TOP2A was confirmed. RESULTS MiR-125b-5p was downregulated while TOP2A was upregulated in ALI mice. MiR-125b-5p elevation or ECs-derived exosomes promoted VEGF expression, improved pathological changes and restrained lung water content, inflammatory response, protein content in BALF and cell apoptosis in lung tissues ALI mice. TOP2A overexpression reversed the repressive role of miR-125b-5p upregulation in ALI, while downregulated miR-125b-5p abrogated the effect of ECs-derived exosomes on ALI. TOP2A was confirmed as a direct target gene of miR-125b-5p. CONCLUSION Our study indicates that ECs-derived exosomes overexpressed miR-125b-5p to protect from sepsis-induced ALI by inhibiting TOP2A, which may contribute to ALI therapeutic strategies.
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Affiliation(s)
- Lijing Jiang
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Jindi Ni
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Guofeng Shen
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Zhuye Xia
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Lu Zhang
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Shihong Xia
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Shengfu Pan
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China
| | - Hongping Qu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiang Li
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, No. 39, Xinling Road, Minhang District, Shanghai, 201199, China.
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Saburi A, Schoepf UJ, Ulversoy KA, Jafari R, Eghbal F, Ghanei M. From Radiological Manifestations to Pulmonary Pathogenesis of COVID-19: A Bench to Bedside Review. Radiol Res Pract 2020; 2020:8825761. [PMID: 33294226 PMCID: PMC7716750 DOI: 10.1155/2020/8825761] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/16/2020] [Accepted: 11/11/2020] [Indexed: 01/08/2023] Open
Abstract
In this review, we aim to assess previous radiologic studies in COVID-19 and suggest a pulmonary pathogenesis based on radiologic findings. Although radiologic features are not specific and there is heterogeneity in symptoms and radiologic and clinical manifestation, we suggest that the dominant pattern of computed tomography is consistent with limited pneumonia, followed by interstitial pneumonitis and organizing pneumonia.
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Affiliation(s)
- Amin Saburi
- Chemical Injuries Research Center, Systems Biology & Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - U. Joseph Schoepf
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC, USA
| | - Kyle A. Ulversoy
- Augusta University/University of Georgia Medical Partnership, Athens, GA, USA
| | - Ramezan Jafari
- Chemical Injuries Research Center, Systems Biology & Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology & Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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6
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Elevated level of Galectin-1 in bronchoalveolar lavage of patients with idiopathic pulmonary fibrosis. Respir Physiol Neurobiol 2020; 273:103323. [DOI: 10.1016/j.resp.2019.103323] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/04/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023]
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7
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Watanabe M, Horimasu Y, Iwamoto H, Yamaguchi K, Sakamoto S, Masuda T, Nakashima T, Miyamoto S, Ohshimo S, Fujitaka K, Hamada H, Kohno N, Hattori N. C-C Motif Chemokine Ligand 15 May Be a Useful Biomarker for Predicting the Prognosis of Patients with Chronic Hypersensitivity Pneumonitis. Respiration 2019; 98:212-220. [PMID: 31416084 DOI: 10.1159/000500576] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/25/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Chronic hypersensitivity pneumonitis (CHP) is characterized by lymphocytic inflammation and progressive fibrosis of the lung caused by a variety of inhaled antigens. Due to the difficulty of accurately diagnosing CHP, and the poor prognosis associated with the condition, a novel clinical biomarker is urgently needed. OBJECTIVE To investigate the usefulness of C-C motif chemokine ligand 15 (CCL15), which had been demonstrated to highly express in the lungs of CHP patients, as a clinical biomarker for CHP. METHOD Immunohistochemical investigations were performed on lung tissue from CHP patients, and CCL15 levels in serum and bronchoalveolar lavage fluid (BALF) were measured via the enzyme-linked immunosorbent assay. RESULTS Immunohistochemistry investigations revealed high CCL15 expression in the lungs of CHP patients. Serum CCL15 levels in CHP patients (29.1 ± 2.1 μg/mL) were significantly higher than those of idiopathic pulmonary fibrosis patients (19.7 ± 1.3 μg/mL, p = 0.01) and healthy subjects (19.5 ± 1.7 μg/mL, p = 0.003). When BALF CCL15 level was divided by BALF albumin (Alb) level (BALF CCL15/Alb), it was significantly inversely correlated with forced vital capacity (β = -0.47, p = 0.0006), percentage of predicted carbon monoxide diffusion capacity of the lung (β = -0.41, p = 0.0048), and BALF lymphocyte count (β = -0.34, p = 0.01) in CHP patients. Multivariate Cox proportional hazards analysis revealed that high BALF CCL15/Alb and poor prognosis were statistically significantly independently correlated in CHP patients (HR 1.1, 95% CI 1.03-1.18, p = 0.004). CONCLUSION The results of the current study suggest that CCL15 may be a useful prognostic biomarker for CHP. CCL15 was highly expressed in the lung tissue of CHP patients, and BALF CCL15/Alb was significantly associated with CHP prognosis.
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Affiliation(s)
- Masako Watanabe
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan,
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Taku Nakashima
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Shinichiro Ohshimo
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Nobuoki Kohno
- Hiroshima Cosmopolitan University, Minami-ku, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
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Soumagne T, Dalphin ML, Dalphin JC. [Hypersensitivity pneumonitis in children]. Rev Mal Respir 2019; 36:495-507. [PMID: 31010760 DOI: 10.1016/j.rmr.2018.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 06/14/2018] [Indexed: 12/13/2022]
Abstract
Hypersensitivity pneumonitis (HP) is an interstitial lung disease caused by an immune response to a variety of antigens to which patients have been previously sensitised. It can occur at any age. In children, it is a rare disease, probably under-diagnosed, with an estimated prevalence of 4 per million. The paediatric forms are not really different from those of adults but present some particularities. Avian exposure is by far the most frequent cause of HP, accounting for nearly two-thirds of cases. Although there is no current recommendation for the diagnosis of HP, it is commonly considered that the diagnosis can be made with confidence on the combination of (1) compatible respiratory symptoms, (2) exposure to a known offending antigen, (3) lymphocytic alveolitis, (4) decreased transfer factor for carbon monoxide or hypoxia on exertion and (5) compatible radiologic features. The treatment is based on antigen avoidance that must be complete and definitive. Corticosteroids can be necessary in severe forms. The prognosis of HP in children is better than in adults, with a full clinical and functional recovery in the majority of cases after complete antigenic withdrawal.
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Affiliation(s)
- T Soumagne
- Service de pneumologie, hôpital Jean-Minjoz, CHU de Besançon, 25030 Besançon cedex, France.
| | - M L Dalphin
- Service de pédiatrie, hôpital Jean-Minjoz, CHU de Besançon, 25030 Besançon cedex, France
| | - J C Dalphin
- Service de pneumologie, hôpital Jean-Minjoz, CHU de Besançon, 25030 Besançon cedex, France; UMR CNRS 6249, Chrono-environnement, université de Franche-Comté, 25000 Besançon, France.
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Ozturk B, Kurtoglu T, Durmaz S, Kozaci LD, Abacigil F, Ertugrul B, Erel O. The effects of ozone on bacterial growth and thiol-disulphide homeostasis in vascular graft infection caused by MRSA in rats. Acta Cir Bras 2017; 32:219-228. [PMID: 28403346 DOI: 10.1590/s0102-865020170030000006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Accepted: 02/03/2017] [Indexed: 01/06/2023] Open
Abstract
Purpose: To investigate the microbiological, inflammatory and oxidant effects of adjuvant ozone administration in experimental rat vascular graft infection model which has not been previously investigated. Methods: Forty adult Wistar rats were divided into Sham, Control, Vancomycin, Ozone, Vancomycin+Ozone groups. Grafts were inoculated with Methicillin-resistant Staphylococcus aureus (MRSA) strain and implanted subcutaneously. Rats were treated intraperitoneally with ozone and /or intramuscularly with vancomycin for 10 days. Grafts were evaluated by quantitative bacterial cultures. Blood samples were harvested for determination of thiol-disulphide and cytokine profiles. Results: There was no significant difference in bacterial counts between Control and Ozone Groups. In the Ozone Group median colony count was significantly higher than the Vancomycin and Vancomycin+Ozone Groups. Total thiol and disulphide levels increased and disulphide/native thiol and disulphide/total thiol ratios decreased in Ozone Group significantly. Albumin levels decreased significantly in Vancomycin and Vancomycin+Ozone Groups compared to the Sham Group. IL-1 and TNF-alpha levels significantly increased in infected rats. Decreased levels of VEGF due to infection reversed by ozone therapy in control and vancomycin groups. Conclusions: We didn't observe any benefit of the agent on MRSA elimination in our model. Likewise, effects of ozone on thiol-disulphide homeostasis and inflammatory cytokines were contradictory.
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Affiliation(s)
- Barcin Ozturk
- Assistant Professor, Department of Infectious Diseases and Clinical Microbiology, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Conception and design of the study, acquisition of data, technical procedures, manuscript preparation and writing
| | - Tunay Kurtoglu
- Associate Professor, Department of Cardiovascular Surgery, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Conception and design of the study, acquisition of data, technical procedures, manuscript preparation and writing
| | - Selim Durmaz
- Assistant Professor, Department of Cardiovascular Surgery, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Design of the study, acquisition of data, technical procedures
| | - Leyla Didem Kozaci
- PhD, Professor, Department of Medical Biochemistry, University of Yildirim Beyazit, School of Medicine, Ankara, Turkey. Biochemical assays, interpretation of data, manuscript writing
| | - Filiz Abacigil
- Associate Professor, Department of Public Health, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Statistical analysis, interpretation of data
| | - Bulent Ertugrul
- Associate Professor, Department of Infectious Diseases and Clinical Microbiology, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Manuscript writing
| | - Ozcan Erel
- Professor, Department of Medical Biochemistry, University of Yildirim Beyazit, School of Medicine, Ankara, Turkey. Biochemical assays, interpretation of data, manuscript writing
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Balogh E, Nagy B, Gyetvai Á, Bene Z, Hendrik Z, Jeney V, Nagy P, Papp Á, Balla J, Balla G, Kappelmayer J, Nagy B. Impaired Immunosuppressive Effect of Bronchoalveolar Mesenchymal Stem Cells in Hypersensitivity Pneumonitis: Preliminary Findings. CYTOMETRY PART B-CLINICAL CYTOMETRY 2016; 94:363-368. [PMID: 27792269 DOI: 10.1002/cyto.b.21490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 09/13/2016] [Accepted: 10/26/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Bronchoalveolar mesenchymal stem cells (MSCs) play an important role in the maintenance of lung integrity. Therapeutic application of bone marrow-derived MSCs reduced chronic bronchial inflammation in idiopathic pulmonary fibrosis, and improved the ratio of survivors in sepsis with pneumonia. This study investigated the effect of MSCs from bronchoalveolar lavage fluid (BALF) of hypersensitivity pneumonitis (HP) on T-cell function under in vitro conditions. METHODS Bronchoalveolar MSCs were obtained via bronchoscopy with BAL from children with severe subacute HP. As control, BALF MSCs were assessed from children without any inflammatory lung disease. Isolated MSCs were characterized via immunophenotyping by flow cytometry and confocal laser scanning microscopy. HP-derived and healthy separated peripheral blood mononuclear cells (PBMCs) were stimulated by 5 µg/mL phytohemagglutinin in the presence of HP-derived or control MSCs in 5-day cultures. Proliferation and activation of T-cells were characterized by the mean fluorescence intensity (MFI) of 5,6-carboxyfluorescein-diacetat succinimidyl ester (CFSE) and CD25, CD69 as well as HLA-DR surface positivities, respectively. RESULTS HP-derived MSCs showed significantly lower level of CD73, CD90, and CD105 expression compared to control MSCs in both flow cytometric and confocal microscopic experiments. MSCs from HP did not reduce T-cell proliferation based on CFSE MFI values, while the level of CD25 expression on both control and HP-derived CD4+ and CD8+ T-cells was significantly reduced by normal MSCs, while HP-derived MSCs did not have any significant effect. The level of other activation markers was not markedly modulated by MSCs. CONCLUSIONS BALF MSCs from HP are unable to downregulate the proliferation and activation of T-cells that may support the development of recurrent intrapulmonary inflammation in HP. © 2016 International Clinical Cytometry Society.
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Affiliation(s)
- Enikő Balogh
- Department of Internal Medicine, Division of Nephrology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ágnes Gyetvai
- Department of Internal Medicine, Division of Nephrology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Bene
- Department of Pediatrics, Division of Pulmonology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Hendrik
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktória Jeney
- Department of Internal Medicine, Division of Nephrology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,MTA-DE Vascular Biology, Thrombosis and Hemostasis Research Group, Hungarian Academy of Sciences, Debrecen, Hungary
| | - Péter Nagy
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ágnes Papp
- Department of Pediatrics, Division of Pulmonology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - József Balla
- Department of Internal Medicine, Division of Nephrology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,MTA-DE Vascular Biology, Thrombosis and Hemostasis Research Group, Hungarian Academy of Sciences, Debrecen, Hungary
| | - György Balla
- Department of Pediatrics, Division of Pulmonology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,MTA-DE Vascular Biology, Thrombosis and Hemostasis Research Group, Hungarian Academy of Sciences, Debrecen, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Pediatrics, Division of Pulmonology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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