51
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Marchetti DP, Donida B, Jacques CE, Deon M, Hauschild TC, Koehler-Santos P, de Moura Coelho D, Coitinho AS, Jardim LB, Vargas CR. Inflammatory profile in X-linked adrenoleukodystrophy patients: Understanding disease progression. J Cell Biochem 2017; 119:1223-1233. [PMID: 28722826 DOI: 10.1002/jcb.26295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 07/18/2017] [Indexed: 01/01/2023]
Abstract
X-linked adrenoleukodystrophy (X-ALD) is an inherited disease characterized by progressive inflammatory demyelization in the brain, adrenal insufficiency, and an abnormal accumulation of very long chain fatty acids (VLCFA) in tissue and body fluids. Considering that inflammation might be involved in pathophysiology of X-ALD, we aimed to investigate pro- and anti-inflammatory cytokines in plasma from three different male phenotypes (CCER, AMN, and asymptomatic individuals). Our results showed that asymptomatic patients presented increased levels of pro-inflammatory cytokines IL-1β, IL-2, IL-8, and TNF-α and the last one was also higher in AMN phenotype. Besides, asymptomatic patients presented higher levels of anti-inflammatory cytokines IL-4 and IL-10. AMN patients presented higher levels of IL-2, IL-5, and IL-4. We might hypothesize that inflammation in X-ALD is related to plasmatic VLCFA concentration, since there were positive correlations between C26:0 plasmatic levels and pro-inflammatory cytokines in asymptomatic and AMN patients and negative correlation between anti-inflammatory cytokine and C24:0/C22:0 ratio in AMN patients. The present work yields experimental evidence that there is an inflammatory imbalance associated Th1, (IL-2, IL-6, and IFN-γ), Th2 (IL-4 and IL-10), and macrophages response (TNF-α and IL-1β) in the periphery of asymptomatic and AMN patients, and there is correlation between VLCFA plasmatic levels and inflammatory mediators in X-ALD. Furthermore, we might also speculate that the increase of plasmatic cytokines in asymptomatic patients could be considered an early biomarker of brain damage and maybe also a predictor of disease progression.
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Affiliation(s)
- Desirèe Padilha Marchetti
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bruna Donida
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Carlos Eduardo Jacques
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marion Deon
- Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.,Serviço de Genética Médica, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.,Departamento de Medicina Interna, Faculdade de Medicina, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Patricia Koehler-Santos
- Unidade de Análises Moleculares e de Proteínas (UAMP), Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daniella de Moura Coelho
- Serviço de Genética Médica, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.,Departamento de Medicina Interna, Faculdade de Medicina, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Adriana Simon Coitinho
- Programa de Pós-Graduação em Ciências Biológicas, Fisiologia, UFRGS, Instituto de Ciências Básicas e da Saúde, Porto Alegre, Rio Grande do Sul, Brazil
| | - Laura Bannach Jardim
- Serviço de Genética Médica, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.,Departamento de Medicina Interna, Faculdade de Medicina, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Carmen Regla Vargas
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.,Serviço de Genética Médica, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.,Departamento de Medicina Interna, Faculdade de Medicina, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
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52
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Harpaz D, Eltzov E, Seet RCS, Marks RS, Tok AIY. Point-of-Care-Testing in Acute Stroke Management: An Unmet Need Ripe for Technological Harvest. BIOSENSORS 2017; 7:E30. [PMID: 28771209 PMCID: PMC5618036 DOI: 10.3390/bios7030030] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 12/20/2022]
Abstract
Stroke, the second highest leading cause of death, is caused by an abrupt interruption of blood to the brain. Supply of blood needs to be promptly restored to salvage brain tissues from irreversible neuronal death. Existing assessment of stroke patients is based largely on detailed clinical evaluation that is complemented by neuroimaging methods. However, emerging data point to the potential use of blood-derived biomarkers in aiding clinical decision-making especially in the diagnosis of ischemic stroke, triaging patients for acute reperfusion therapies, and in informing stroke mechanisms and prognosis. The demand for newer techniques to deliver individualized information on-site for incorporation into a time-sensitive work-flow has become greater. In this review, we examine the roles of a portable and easy to use point-of-care-test (POCT) in shortening the time-to-treatment, classifying stroke subtypes and improving patient's outcome. We first examine the conventional stroke management workflow, then highlight situations where a bedside biomarker assessment might aid clinical decision-making. A novel stroke POCT approach is presented, which combines the use of quantitative and multiplex POCT platforms for the detection of specific stroke biomarkers, as well as data-mining tools to drive analytical processes. Further work is needed in the development of POCTs to fulfill an unmet need in acute stroke management.
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Affiliation(s)
- Dorin Harpaz
- Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- School of Material Science & Engineering, Nanyang Technology University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Institute for Sports Research (ISR), Nanyang Technology University and Loughborough University, Nanyang Avenue, Singapore 639798, Singapore.
| | - Evgeni Eltzov
- Agriculture Research Organization (ARO), Volcani Centre, Rishon LeTsiyon 15159, Israel.
| | - Raymond C S Seet
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore.
| | - Robert S Marks
- Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- School of Material Science & Engineering, Nanyang Technology University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- The Ilse Katz Centre for Meso and Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Alfred I Y Tok
- School of Material Science & Engineering, Nanyang Technology University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Institute for Sports Research (ISR), Nanyang Technology University and Loughborough University, Nanyang Avenue, Singapore 639798, Singapore.
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53
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Wang S, Peng Q, Jia H, Zeng X, Zhu J, Hou C, Liu X, Yang F, Qiao S. Prevention of Escherichia coli infection in broiler chickens with Lactobacillus plantarum B1. Poult Sci 2017; 96:2576-2586. [DOI: 10.3382/ps/pex061] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/06/2017] [Indexed: 01/14/2023] Open
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54
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Sun DS, Shi BL, Tong MM, Yan SM. Improved performance and immunological responses as a result of dietary Yucca schidigera extract supplementation in broilers. ITALIAN JOURNAL OF ANIMAL SCIENCE 2017. [DOI: 10.1080/1828051x.2017.1358593] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Deng-sheng Sun
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Bin-lin Shi
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Man-man Tong
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Su-mei Yan
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
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55
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Wang F, Liu JH, Zhao YK, Luo DQ. Interferon-gamma-induced local leukocytoclastic vasculitis at the subcutaneous injection site. An Bras Dermatol 2017; 91:76-78. [PMID: 28300901 PMCID: PMC5325000 DOI: 10.1590/abd1806-4841.20164985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/04/2015] [Indexed: 12/17/2022] Open
Abstract
Cutaneous reactions associated with interferons (IFNs) treatment are either
localized or generalized. The most common presentation of localized reactions at
IFNs injection site is usually an erythematous patch or plaque. Local
leukocytoclastic vasculitis presenting with cutaneous necrosis is extremely
rare. We report a 19-year-old man with hepatitis B who had local
leukocytoclastic vasculitis induced by interferon-gama injection at the
injection site. After changing the injection sites and using the combined
treatment of prednisone and colchicine, the previous lesion healed and no other
cutaneous lesion occurred. We also made a mini review of such cases.
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Affiliation(s)
- Fang Wang
- The First Affiliated Hospital, SunYat-sen University - Guangzhou, China
| | - Juan-Hua Liu
- The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University - Guangzhou, China
| | - Yu-Kun Zhao
- The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University - Guangzhou, China
| | - Di-Qing Luo
- The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University - Guangzhou, China
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56
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Sinawang PD, Harpaz D, Fajs L, Seet RCS, Tok AIY, Marks RS. Electrochemical impedimetric detection of stroke biomarker NT-proBNP using disposable screen-printed gold electrodes. EUROBIOTECH JOURNAL 2017. [DOI: 10.24190/issn2564-615x/2017/02.09] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Stroke is the second top leading cause of death globally. It is caused by an abrupt interruption of blood flow to the brain. In that course, brain natriuretic peptide (BNP) and its derivative N-terminal pro b-type natriuretic peptide (NT-proBNP), neurohormones produced mainly by the heart ventricles in response to excessive stretching of cardiomyocytes (heart muscle cells), are proven to be good biomarkers for heart failure diagnosis. Moreover, there is growing clinical interest of the use of NT-proBNP for stroke diagnosis and prognosis because it is significantly associated with cardioembolic stroke and secondary stroke reoccurrence, with sensitivity >90% and specificity >80%. However, in diagnostic settings, there is still a need to address the encountered analytical problems, particularly assay specificity and set up. In this study, a novel approach for NT-proBNP detection is demonstrated using an electrochemical immunoassay method. A label-free impedimetry immunosensor for stroke biomarker was developed using modified disposable screen-printed gold electrodes (SPGE) hosting specific anti-NT-proBNP capture antibody. The performance of our immunosensor was studied in the presence of NT-proBNP in both buffered and mock (porcine) plasma samples. A linear relation between the relative total resistance (ΔRtot) responses and the NT-proBNP concentrations in buffer was observed in a range from 0.1 to 5 ng mL-1 with a correlation coefficient (R2) of 0.94656. Overall, the biosensor has demonstrated the capability to quantitate NT-proBNP and differentiate such concentrations in a low concentration range, especially among 0, 0.1, 0.5, 1, and 3 ng mL-1 in plasma samples within 25 min. This range is valuable not only for classifying cardioembolic stroke (higher or equal to 0.5 ng mL-1), but also predicting the risk of secondary stroke reoccurrence (higher than 0.255 ng mL-1). Our biosensor has the potential to be used as an easy-to-use point-of-care test that is both accurate and affordable.
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Affiliation(s)
- Prima Dewi Sinawang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
- Biosensorix Pte. Ltd., 1 Raffles Place, Singapore 048616, Singapore
| | - Dorin Harpaz
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev , Israel
- Institute for Sports Research, Nanyang Technological University, Singapore
| | - Luka Fajs
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
- Biosensorix Pte. Ltd., 1 Raffles Place, Singapore 048616, Singapore
| | - Raymond Chee Seong Seet
- Division of Neurology, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Alfred Iing Yoong Tok
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
- Institute for Sports Research, Nanyang Technological University, Singapore
| | - Robert S. Marks
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev , Israel
- The National Institute for Biotechnology, The Ilse Katz Center for Meso and Nanoscale Science and Technology, Ben-Gurion University of the Negev , Israel
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57
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Ho PS, Yen CH, Chen CY, Huang SY, Liang CS. Changes in cytokine and chemokine expression distinguish dysthymic disorder from major depression and healthy controls. Psychiatry Res 2017; 248:20-27. [PMID: 27992767 DOI: 10.1016/j.psychres.2016.12.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 10/29/2016] [Accepted: 12/12/2016] [Indexed: 12/14/2022]
Abstract
An important area of uncertainty is the inflammatory degree to which depression occurring as part of dysthymic disorder may differ from major depression. Using a 27-plex cytokine assay, we analyzed the serum of 12 patients with dysthymic disorder, 12 with major depression, and an age-, sex-, and body mass index-matched control group of 20 healthy volunteers. We observed that patients with dysthymic disorder exhibited aberrant cytokine and chemokine expression compared with healthy controls and patients with major depression. The levels of interferon-γ-induced protein 10 highly predicted dysthymic disorder. Network analyses revealed that in patients with dysthymic disorder, the vertices were more sparsely connected and adopted a more hub-like architecture, and the connections from neighboring vertices of interleukin 2 and eotaxin-1 increased. After treatment with the same antidepressant, there was no difference between dysthymic disorder and major depression regarding any of the cytokines or chemokines analyzed. For dysthymic disorder, changes in the levels of interferon-γ-induced protein 10 and macrophage inflammatory protein-1α correlated with depression improvement. The findings suggest that the cytokine milieu in dysthymic disorder differs either at the level of individual expression or in network patterns. Moreover, chemokines play an important role in driving the pathophysiology of dysthymic disorder.
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Affiliation(s)
- Pei-Shen Ho
- Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Che-Hung Yen
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chun-Yen Chen
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - San-Yuan Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chih-Sung Liang
- Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC; Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC.
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58
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Georgakopoulou E, Scully C. Biological agents: what they are, how they affect oral health and how they can modulate oral healthcare. Br Dent J 2017; 218:671-7. [PMID: 26114697 DOI: 10.1038/sj.bdj.2015.439] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 12/17/2022]
Abstract
Biological agents - biologics, biologicals or biopharmaceuticals - are any medicinal product manufactured in, or extracted from, a biological source. They are often generated by DNA recombinant biotechnology and several dozen therapeutic monoclonal antibodies (mAbs) are now marketed for a variety of indications, increasingly in the management of inflammatory immune-mediated disorders, transplantation rejection and cancer treatments. Immunomodulatory mAbs are expensive, must be given by injection or infusion and can have adverse effects but are increasingly used and can be highly effective agents. This paper reviews these agents and their increasing relevance to oral science and healthcare.
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Affiliation(s)
- E Georgakopoulou
- Department of Histology and Embryology, School of Medicine, University of Athens, Greece
| | - C Scully
- 1] WHO Collaborating Centre for Oral Health-General Health Co-Director London [2] Royal College of Surgeons of Edinburgh King James IV Professor London [3] UCL Emeritus Professor, London
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59
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Decker ML, Grobusch MP, Ritz N. Influence of Age and Other Factors on Cytokine Expression Profiles in Healthy Children-A Systematic Review. Front Pediatr 2017; 5:255. [PMID: 29312902 PMCID: PMC5735141 DOI: 10.3389/fped.2017.00255] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/15/2017] [Indexed: 01/30/2023] Open
Abstract
Cytokines have attracted much attention as diagnostic biomarkers for infectious and inflammatory diseases in recent years. However, understanding of maturation and normal age-associated values is limited. This review summarizes evidence on the influence of age and other factors on expression profiles of soluble and intracellular cytokines in healthy children. IFN-γ, IL-6, IL-10, and TNF-α are the most frequently investigated cytokines, of which an age-associated increase was shown consistently for IFN-γ and TNF-α. An age-associated decrease of IL-13 was seen in resource-limited settings. For other cytokines, including IL-1RA, IL-2, and IL-10, uni- or bimodal curves have been described, and results were influenced by study setting. To conclude, despite limited current understanding of the development of cytokine expression, age clearly influences expression profiles in healthy children. Dynamics of cytokine expression in childhood need to be considered when these are measured in diagnostic assays or as biomarkers. In addition, cytokine-targeting agents may require adjustment for normal values when used in children.
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Affiliation(s)
- Marie-Luise Decker
- Pediatric Infectious Diseases and Pediatric Pharmacology, University of Basel Children's Hospital, Basel, Switzerland
| | - Martin P Grobusch
- Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Division of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Nicole Ritz
- Pediatric Infectious Diseases and Pediatric Pharmacology, University of Basel Children's Hospital, Basel, Switzerland.,Department of Pediatrics, The University of Melbourne, Parkville, Australia
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60
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Yaksh TL, Fisher CJ, Hockman TM, Wiese AJ. Current and Future Issues in the Development of Spinal Agents for the Management of Pain. Curr Neuropharmacol 2017; 15:232-259. [PMID: 26861470 PMCID: PMC5412694 DOI: 10.2174/1570159x14666160307145542] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 12/02/2015] [Accepted: 02/05/2016] [Indexed: 11/22/2022] Open
Abstract
Targeting analgesic drugs for spinal delivery reflects the fact that while the conscious experience of pain is mediated supraspinally, input initiated by high intensity stimuli, tissue injury and/or nerve injury is encoded at the level of the spinal dorsal horn and this output informs the brain as to the peripheral environment. This encoding process is subject to strong upregulation resulting in hyperesthetic states and downregulation reducing the ongoing processing of nociceptive stimuli reversing the hyperesthesia and pain processing. The present review addresses the biology of spinal nociceptive processing as relevant to the effects of intrathecally-delivered drugs in altering pain processing following acute stimulation, tissue inflammation/injury and nerve injury. The review covers i) the major classes of spinal agents currently employed as intrathecal analgesics (opioid agonists, alpha 2 agonists; sodium channel blockers; calcium channel blockers; NMDA blockers; GABA A/B agonists; COX inhibitors; ii) ongoing developments in the pharmacology of spinal therapeutics focusing on less studied agents/targets (cholinesterase inhibition; Adenosine agonists; iii) novel intrathecal targeting methodologies including gene-based approaches (viral vectors, plasmids, interfering RNAs); antisense, and toxins (botulinum toxins; resniferatoxin, substance P Saporin); and iv) issues relevant to intrathecal drug delivery (neuraxial drug distribution), infusate delivery profile, drug dosing, formulation and principals involved in the preclinical evaluation of intrathecal drug safety.
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Affiliation(s)
- Tony L. Yaksh
- University of California, San Diego, Anesthesia Research Lab 0818, 9500 Gilman Dr. LaJolla, CA 92093, USA
| | - Casey J. Fisher
- University of California, San Diego, Anesthesia Research Lab 0818, 9500 Gilman Dr. LaJolla, CA 92093, USA
| | - Tyler M. Hockman
- University of California, San Diego, Anesthesia Research Lab 0818, 9500 Gilman Dr. LaJolla, CA 92093, USA
| | - Ashley J. Wiese
- University of California, San Diego, Anesthesia Research Lab 0818, 9500 Gilman Dr. LaJolla, CA 92093, USA
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Abstract
Although therapies in addition to whole-body cooling are being developed to treat the neonate at risk for hypoxic-ischemic encephalopathy, we have no quickly measured serum inflammatory or neuronal biomarkers to acutely and accurately identify brain injury or to follow the efficacy of therapy. This review covers inflammatory serum biomarkers in the setting of birth asphyxia that can help assess the degree or severity of encephalopathy at birth and neurodevelopmental outcomes. These biomarkers still need to be independently validated in large cohorts before they are ready for clinical implementation in practice.
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Affiliation(s)
- Lina F Chalak
- Department of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Room F3.312B, Dallas, TX 75390-9063, USA.
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62
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Torres-Rêgo M, Furtado AA, Bitencourt MAO, Lima MCJDS, Andrade RCLCD, Azevedo EPD, Soares TDC, Tomaz JC, Lopes NP, da Silva-Júnior AA, Zucolotto SM, Fernandes-Pedrosa MDF. Anti-inflammatory activity of aqueous extract and bioactive compounds identified from the fruits of Hancornia speciosa Gomes (Apocynaceae). Altern Ther Health Med 2016; 16:275. [PMID: 27496015 PMCID: PMC4974780 DOI: 10.1186/s12906-016-1259-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/03/2016] [Indexed: 11/10/2022]
Abstract
Background Hancornia speciosa Gomes (Apocynaceae), popularly known as “mangabeira,” has been used in folk medicine to treat inflammatory disorders, hypertension, dermatitis, diabetes, liver diseases and gastric disorders. Although the ethnobotany indicates that its fruits can be used for the treatment of ulcers and inflammatory disorders, only few studies have been conducted to prove such biological activities. This study investigated the anti-inflammatory properties of the aqueous extract of the fruits of H. speciosa Gomes as well as its bioactive compounds using in vivo experimental models. Methods The bioactive compounds were identified by High Performance Liquid Chromatography coupled with diode array detector (HPLC-DAD) and Liquid Chromatography coupled with Mass Spectrometry (LC-MS). The anti-inflammatory properties were investigated through in vivo tests, which comprised xylene-induced ear edema, carrageenan-induced peritonitis and zymosan-induced air pouch. The levels of IL-1β, IL-6, IL-12 and TNF-α were determined using ELISA. Results Rutin and chlorogenic acid were identified in the extract as the main secondary metabolites. In addition, the extract as well as rutin and chlorogenic acid significantly inhibited the xilol-induced ear edema and also reduced the cell migration in both carrageenan-induced peritonitis and zymosan-induced air pouch models. Reduced levels of cytokines were also observed. Conclusion This is the first study that demonstrated the anti-inflammatory activity of the extract of H. speciosa fruits against different inflammatory agents in animal models, suggesting that its bioactive molecules, especially rutin and chlorogenic acid are, at least in part, responsible for such activity. These findings support the widespread use of Hancornia speciosa in popular medicine and demonstrate that its aqueous extract has therapeutical potential for the development of herbal drugs with anti-inflammatory properties.
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63
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In vitro investigation of Debaryomyces hansenii strains for potential probiotic properties. World J Microbiol Biotechnol 2016; 32:141. [DOI: 10.1007/s11274-016-2109-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/01/2016] [Indexed: 12/11/2022]
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64
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Bugge K, Lindorff-Larsen K, Kragelund BB. Understanding single-pass transmembrane receptor signaling from a structural viewpoint-what are we missing? FEBS J 2016; 283:4424-4451. [PMID: 27350538 DOI: 10.1111/febs.13793] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/10/2016] [Accepted: 06/27/2016] [Indexed: 11/30/2022]
Abstract
Single-pass transmembrane receptors are involved in essential processes of both physiological and pathological nature and represent more than 1300 proteins in the human genome. Despite the high biological relevance of these receptors, the mechanisms of the signal transductions they facilitate are incompletely understood. One major obstacle is the lack of structures of the transmembrane domains that connect the extracellular ligand-binding domains to the intracellular signaling platforms. Over a period of almost 20 years since the first structure was reported, only 21 of these receptors have become represented by a transmembrane domain structure. This scarceness stands in strong contrast to the significance of these transmembrane α-helices for receptor functionality. In this review, we explore the properties and qualities of the current set of structures, as well as the methodological difficulties associated with their characterization and the challenges left to be overcome. Without an increased and focused effort to bring this class of proteins on par with the remaining membrane protein field, a serious lag in their biological understanding looms. Design of pharmaceutical agents, prediction of mutational affects in relation to disease, and deciphering of functional mechanisms require high-resolution structural information, especially when dealing with a domain carrying so much functionality in so few residues.
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Affiliation(s)
- Katrine Bugge
- Department of Biology, Structural Biology and NMR Laboratory, University of Copenhagen, Denmark
| | - Kresten Lindorff-Larsen
- Department of Biology, Structural Biology and NMR Laboratory, University of Copenhagen, Denmark
| | - Birthe B Kragelund
- Department of Biology, Structural Biology and NMR Laboratory, University of Copenhagen, Denmark
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65
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Kiefer JD, Neri D. Immunocytokines and bispecific antibodies: two complementary strategies for the selective activation of immune cells at the tumor site. Immunol Rev 2016; 270:178-92. [PMID: 26864112 PMCID: PMC5154379 DOI: 10.1111/imr.12391] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The activation of the immune system for a selective removal of tumor cells represents an attractive strategy for the treatment of metastatic malignancies, which cannot be cured by existing methodologies. In this review, we examine the design and therapeutic potential of immunocytokines and bispecific antibodies, two classes of bifunctional products which can selectively activate the immune system at the tumor site. Certain protein engineering aspects, such as the choice of the antibody format, are common to both classes of therapeutic agents and can have a profound impact on tumor homing performance in vivo of individual products. However, immunocytokines and bispecific antibodies display different mechanisms of action. Future research activities will reveal whether an additive of even synergistic benefit can be obtained from the judicious combination of these two types of biopharmaceutical agents.
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Affiliation(s)
- Jonathan D Kiefer
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
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Nagaraja S, Reifman J, Mitrophanov AY. Computational Identification of Mechanistic Factors That Determine the Timing and Intensity of the Inflammatory Response. PLoS Comput Biol 2015; 11:e1004460. [PMID: 26633296 PMCID: PMC4669096 DOI: 10.1371/journal.pcbi.1004460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 06/16/2015] [Indexed: 11/19/2022] Open
Abstract
Timely resolution of inflammation is critical for the restoration of homeostasis in injured or infected tissue. Chronic inflammation is often characterized by a persistent increase in the concentrations of inflammatory cells and molecular mediators, whose distinct amount and timing characteristics offer an opportunity to identify effective therapeutic regulatory targets. Here, we used our recently developed computational model of local inflammation to identify potential targets for molecular interventions and to investigate the effects of individual and combined inhibition of such targets. This was accomplished via the development and application of computational strategies involving the simulation and analysis of thousands of inflammatory scenarios. We found that modulation of macrophage influx and efflux is an effective potential strategy to regulate the amount of inflammatory cells and molecular mediators in both normal and chronic inflammatory scenarios. We identified three molecular mediators − tumor necrosis factor-α (TNF-α), transforming growth factor-β (TGF-β), and the chemokine CXCL8 − as potential molecular targets whose individual or combined inhibition may robustly regulate both the amount and timing properties of the kinetic trajectories for neutrophils and macrophages in chronic inflammation. Modulation of macrophage flux, as well as of the abundance of TNF-α, TGF-β, and CXCL8, may improve the resolution of chronic inflammation. A recent approach to quantitatively characterize the timing and intensity of the inflammatory response relies on the use of four quantities termed inflammation indices. The values of the inflammation indices may reflect the differences between normal and pathological inflammation, and may be used to gauge the effects of therapeutic interventions aimed to control inflammation. Yet, the specific inflammatory mechanisms that can be targeted to selectively control these indices remain unknown. Here, we developed and applied a computational strategy to identify potential target mechanisms to regulate such indices. We used our recently developed model of local inflammation to simulate thousands of inflammatory scenarios. We then subjected the corresponding inflammation index values to sensitivity and correlation analysis. We found that the inflammation indices may be significantly influenced by the macrophage influx and efflux rates, as well as by the degradation rates of three specific molecular mediators. These results suggested that the indices can be effectively regulated by individual or combined inhibition of those molecular mediators, which we confirmed by computational experiments. Taken together, our results highlight possible targets of therapeutic intervention that can be used to control both the timing and the intensity of the inflammatory response.
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Affiliation(s)
- Sridevi Nagaraja
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
| | - Jaques Reifman
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
- * E-mail:
| | - Alexander Y. Mitrophanov
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
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Rosa L, Scaini G, Furlanetto CB, Galant LS, Vuolo F, Dall'Igna DM, Schuck PF, Ferreira GC, Dal-Pizzol F, Streck EL. Administration of branched-chain amino acids alters the balance between pro-inflammatory and anti-inflammatory cytokines. Int J Dev Neurosci 2015; 48:24-30. [PMID: 26608891 DOI: 10.1016/j.ijdevneu.2015.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 11/11/2015] [Accepted: 11/11/2015] [Indexed: 12/14/2022] Open
Abstract
Acute leucine intoxication and neurologic deterioration can develop rapidly at any age as a result of net protein degradation precipitated by infection or psychological stress in patients with maple syrup urine disease (MSUD). Here, we investigated the effects of acute and chronic Hyper-BCAA (H-BCAA) administration on pro- and anti-inflammatory cytokines in the brains of rats. For acute administration, Wistar rats (10 and 30 days) received three injections of BCAA pool (15.8 μL/g at 1-h intervals) or saline, subcutaneously. For chronic administration, Wistar rats (7 days) received of BCAA pool or saline twice a day for 21 days, subcutaneously. Our results showed that acute administration of H-BCAA increased IL-1β (∼ 78%; p ≤ 0.009) and TNF-α (∼ 155%; p ≤ 0.026) levels in the cerebral cortex but not in the hippocampus of infant rats. Moreover, IL-6 levels were increased in the hippocampus (∼ 135%; p ≤ 0.009) and cerebral cortex (∼ 417%; p ≤ 0.008), whereas IL-10 levels were decreased only in the hippocampus (∼ 42%; p ≤ 0.009). However, repeated administration of H-BCAA decreased IL-1β (∼ 59%; p ≤ 0.047), IL-6 (∼ 70%; p ≤ 0.009) and IFN-γ (∼ 70%; p ≤ 0.008) levels in the cerebral cortex, whereas the IL-6 (∼ 67%; p ≤ 0.009), IL-10 (∼ 58%; p ≤ 0.01) and IFN-γ (∼ 67%; p ≤ 0.009) levels were decreased in the hippocampus. These findings suggest that a better understanding of the inflammatory response in MSUD patients may be useful to develop therapeutic strategies to modulate the hyperinflammatory/hypoinflammatory axis.
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Affiliation(s)
- Luciana Rosa
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Giselli Scaini
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Camila B Furlanetto
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Leticia S Galant
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Francieli Vuolo
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Dhébora M Dall'Igna
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Patrícia F Schuck
- Laboratório de Erros Inatos do Metabolismo, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Gustavo C Ferreira
- Laboratório de Erros Inatos do Metabolismo, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Felipe Dal-Pizzol
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Emilio L Streck
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil.
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Malemud CJ, Lewis AC, Wylie MA, Meszaros EC, Skomorovska-Prokvolit Y, Mesiano S. U0126, an Inhibitor of MEK1/2, Increases Tumor Necrosis Factor-α-Induced Apoptosis, but not Interleukin-6 Induced Apoptosis in C-28/I2 Human Chondrocytes. ACTA ACUST UNITED AC 2015; 1. [PMID: 26855970 DOI: 10.21767/2471-8153.100004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Activation of the SAPK/MAPK signaling pathway by pro-inflammatory cytokines is known to induce apoptosis in cultured articular chondrocytes. C-28/I2, an immortalized human juvenile chondrocyte cell line was employed to determine the extent to which recombinant human (rh) forms of the pro-inflammatory cytokines, tumor necrosis factor-α (rhTNF-α,), interleukin-6 (rhIL-6) and oncostatin M (rhOSM) induced apoptosis. METHODS The induction of apoptosis in the presence or absence of these cytokines was measured by the DAPI/TUNEL assay, by whether or not pro-caspase-3 was activated and by the extent to which poly-ADP-ribose polymerase (PARP) was degraded. FINDINGS Only rhTNF-α, and rhIL-6 significantly increased apoptosis in C-28/I2 chondrocytes, although rhOSM exhibited a strong trend (p=0.067) towards increasing the frequency of apoptotic chondrocytes. The number of apoptotic C28/I2 chondrocytes was significantly increased (p=1.3 × 10-5) by the combination of rhTNF-α and U0126 (10 μM) compared to rhTNF-α alone. However apoptosis was not further increased by combining rhIL-6 with U0126. The LI-COR® western blot system showed that U0126 (10 μM) inhibited the phosphorylation of extracellular signal-regulated kinase-2 (p-ERK2) by phorbol myristate acetate-treated immortalized myometrial cells, U0126 (10 μM) did not alter total U-ERK2. Western blot analysis also revealed that the increased frequency of apoptotic C-28/I2 chondrocytes induced by rhTNF-α and rhOSM, but not rhIL-6, was associated with PARP degradation. However, none of the cytokines resulted in pro-caspase-3 activation. CONCLUSION These results showed that rhTNF-α and rhIL-6 were strong inducers of apoptosis in the immortalized C-28/I2 human chondrocyte cell line. They also suggested that inhibiting ERK2 phosphorylation via U0126-mediated inhibition of MEK1/2 activity, increased rhTNF-α-induced C-28/I2 chondrocyte apoptosis.
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Affiliation(s)
- Charles J Malemud
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases; Department of Anatomy, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 USA
| | - Aaron C Lewis
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | - Meredith A Wylie
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | - Evan C Meszaros
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | | | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 USA
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Liszewski W, Gniadecki R. The role of cytokine deficiencies and cytokine autoantibodies in clinical dermatology. J Eur Acad Dermatol Venereol 2015; 30:404-12. [DOI: 10.1111/jdv.13303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 05/18/2015] [Indexed: 01/02/2023]
Affiliation(s)
- W. Liszewski
- Department of Dermatology; Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - R. Gniadecki
- Department of Dermatology; Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
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The role of cytokines in the pathogenesis of rheumatoid arthritis--Practical and potential application of cytokines as biomarkers and targets of personalized therapy. Cytokine 2015; 76:527-536. [PMID: 26321413 DOI: 10.1016/j.cyto.2015.08.260] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/17/2015] [Accepted: 08/19/2015] [Indexed: 01/01/2023]
Abstract
Rheumatoid arthritis (RA), as a common chronic disease leading to severe disability, requires early diagnosis and introduction of proper treatment. Deregulation in the cytokine network plays an undoubtedly crucial role in the pathogenesis of RA. The understanding of the role of cytokines in RA can be used for patients' benefit. Technological advances had already allowed introduction of the tailor-made cytokine-targeted therapies (so far anti-TNF, anti-IL-1 and anti-IL-6) into clinical practice. This type of treatment is currently developing very fast. Moreover, cytokines are considered to be potential powerful biomarkers of RA with roles predicted to grow in the future. Detailed understanding of the cytokine balance in RA may assist both the diagnostic process and therapy.
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Tahghighi F, Ziaee V, Moradinejad MH, Rezaei A, Harsini S, Soltani S, Sadr M, Mahmoudi M, Aghighi Y, Rezaei N. Tumor necrosis factor-alpha single nucleotide polymorphisms in juvenile systemic lupus erythematosus. Hum Immunol 2015; 76:533-6. [PMID: 26116096 DOI: 10.1016/j.humimm.2015.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 01/04/2014] [Accepted: 06/17/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Juvenile systemic lupus erythematosus (JSLE) is a multi-system autoimmune disorder of unknown origin. Given the importance of the contribution of pro-inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), towards the pathogenesis of JSLE, this study was performed to assess TNFA gene polymorphisms in a case-control study. METHODS Fifty nine patients with JSLE were enrolled in this study as case group and compared with healthy control subjects. The frequency of alleles, genotypes, and haplotypes of TNFA single-nucleotide polymorphisms (SNPs) at positions -308 and -238 were evaluated, using polymerase chain reaction with sequence-specific primers method. RESULTS The G allele at position -238 in TNFA promoter region was significantly more frequent in patients with JSLE than in the healthy controls (P value<0.001), while the frequency of A allele at the same position was significantly lower than controls. Furthermore, a significant positive association for G/G genotype at the same position was detected in patients' group compared with control subjects (P value<0.001). The GA haplotype of TNFA (positions -308, -238) was significantly less frequent in case group than in controls (P value<0.001), while GG was the most frequent haplotype for TNFA in the patient group, compared to controls (P value<0.01). CONCLUSIONS Pro-inflammatory cytokine gene polymorphisms may influence susceptibility to JSLE. Particular TNFA gene variants are associated with JSLE and could be used as a genetic marker for susceptibility to JSLE.
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Affiliation(s)
- Fatemeh Tahghighi
- Pediatric Rheumatology Research Group, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Ziaee
- Pediatric Rheumatology Research Group, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Moradinejad
- Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Arezou Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Harsini
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samaneh Soltani
- Molecular Immunology Research Center, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Sadr
- Molecular Immunology Research Center, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mahmoudi
- School of Nutrition and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Yahya Aghighi
- Department of Pediatrics, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Molecular Immunology Research Center, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Musaya J, Matovu E, Nyirenda M, Chisi J. Role of cytokines in Trypanosoma brucei-induced anaemia: A review of the literature. Malawi Med J 2015; 27:45-50. [PMID: 26405511 PMCID: PMC4562079 DOI: 10.4314/mmj.v27i2.3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Anaemia is an important complication of trypanosomiasis. The mechanisms through which trypanosomal infection leads to anaemia are poorly defined. A number of studies have implicated inflammatory cytokines, but these data are limited and inconsistent. In this article, we reviewed the published literature on cytokines associated with Trypanosoma brucei infections and their role in the immunopathology leading to anaemia. METHODOLOGY Articles were searched in PubMed through screening of titles and abstracts with no limitation on date of publishing and study design. Articles in English were searched using keywords "African trypanosomiasis", "sleeping sickness", "Trypanosoma brucei", in all possible combinations with "anaemia" and/or "cytokines". RESULTS Twelve articles examining cytokines and their role in trypanosomeinduced anaemia were identified out of 1095 originally retrieved from PubMed. None of the articles identified were from human-based studies. A total of eight cytokines were implicated, with four cytokines (IFN-γ, IL-10, TNF-α, IL-12) showing an association with anaemia. These articles reported that mice lacking TNF-α were able to control anaemia, and that IFN-γ was linked to severe anaemia given its capacity to suppress erythropoiesis, while IL-10 was shown to regulate IFN-γ and TNF-α, providing a balance that was associated with severity of anaemia. IFN-γ and TNF-α have also been reported to work in concert with other factors such as nitric oxide and iron in order to induce anaemia. CONCLUSION IFN-γ, IL-10, and TNF-α were the three major cytokines identified to be heavily involved in anaemia caused by Trypanosoma brucei infection. The anti-inflammatory cytokine, IL-10, was shown to counter the effects of proinflammatory cytokines in order to balance the severity of anaemia. The mechanism of anaemia is multifactorial and therefore requires further, more elaborate research. Data from human subjects would also shed more light.
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Affiliation(s)
- J Musaya
- Department of Pathology, Microbiology Unit, College of Medicine, University of Malawi, Blantyre, Malawi
| | - E Matovu
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Sciences, Animal Resource and Biosecurity, Makerere University, Kampala, Uganda
| | - M Nyirenda
- Department of Medicine, College of Medicine, University of Malawi & Malawi-Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - J Chisi
- Department of Basic Medical Sciences, Anatomy Unit, College of Medicine, University of Malawi, Blantyre, Malawi
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Ramani T, Auletta CS, Weinstock D, Mounho-Zamora B, Ryan PC, Salcedo TW, Bannish G. Cytokines: The Good, the Bad, and the Deadly. Int J Toxicol 2015; 34:355-65. [PMID: 26015504 DOI: 10.1177/1091581815584918] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past 30 years, the world of pharmaceutical toxicology has seen an explosion in the area of cytokines. An overview of the many aspects of cytokine safety evaluation currently in progress and evolving strategies for evaluating these important entities was presented at this symposium. Cytokines play a broad role to help the immune system respond to diseases, and drugs which modulate their effect have led to some amazing therapies. Cytokines may be "good" when stimulating the immune system to fight a foreign pathogen or attack tumors. Other "good" cytokine effects include reduction of an immune response, for example interferon β reduction of neuron inflammation in patients with multiple sclerosis. They may be "bad" when their expression causes inflammatory diseases, such as the role of tumor necrosis factor α in rheumatoid arthritis or asthma and Crohn's disease. Therapeutic modulation of cytokine expression can help the "good" cytokines to generate or quench the immune system and block the "bad" cytokines to prevent damaging inflammatory events. However, care must be exercised, as some antibody therapeutics can cause "ugly" cytokine release which can be deadly. Well-designed toxicology studies should incorporate careful assessment of cytokine modulation that will allow effective therapies to treat unmet needs. This symposium discussed lessons learned in cytokine toxicology using case studies and suggested future directions.
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Huang L, Li G, Mo Z, Xiao P, Li J, Huang J. De Novo assembly of the Japanese flounder (Paralichthys olivaceus) spleen transcriptome to identify putative genes involved in immunity. PLoS One 2015; 10:e0117642. [PMID: 25723398 PMCID: PMC4344349 DOI: 10.1371/journal.pone.0117642] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/30/2014] [Indexed: 12/23/2022] Open
Abstract
Background Japanese flounder (Paralichthys olivaceus) is an economically important marine fish in Asia and has suffered from disease outbreaks caused by various pathogens, which requires more information for immune relevant genes on genome background. However, genomic and transcriptomic data for Japanese flounder remain scarce, which limits studies on the immune system of this species. In this study, we characterized the Japanese flounder spleen transcriptome using an Illumina paired-end sequencing platform to identify putative genes involved in immunity. Methodology/Principal Findings A cDNA library from the spleen of P. olivaceus was constructed and randomly sequenced using an Illumina technique. The removal of low quality reads generated 12,196,968 trimmed reads, which assembled into 96,627 unigenes. A total of 21,391 unigenes (22.14%) were annotated in the NCBI Nr database, and only 1.1% of the BLASTx top-hits matched P. olivaceus protein sequences. Approximately 12,503 (58.45%) unigenes were categorized into three Gene Ontology groups, 19,547 (91.38%) were classified into 26 Cluster of Orthologous Groups, and 10,649 (49.78%) were assigned to six Kyoto Encyclopedia of Genes and Genomes pathways. Furthermore, 40,928 putative simple sequence repeats and 47, 362 putative single nucleotide polymorphisms were identified. Importantly, we identified 1,563 putative immune-associated unigenes that mapped to 15 immune signaling pathways. Conclusions/Significance The P. olivaceus transciptome data provides a rich source to discover and identify new genes, and the immune-relevant sequences identified here will facilitate our understanding of the mechanisms involved in the immune response. Furthermore, the plentiful potential SSRs and SNPs found in this study are important resources with respect to future development of a linkage map or marker assisted breeding programs for the flounder.
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Affiliation(s)
- Lin Huang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
- College of Life Science, Qingdao University, Qingdao, China
| | - Guiyang Li
- Key Laboratory of Sustainable Development of Marine Fisheries, The Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhaolan Mo
- Key Laboratory of Sustainable Development of Marine Fisheries, The Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- National Laboratory for Marine Science and Technology, Qingdao, China
- * E-mail:
| | - Peng Xiao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Jie Li
- Key Laboratory of Sustainable Development of Marine Fisheries, The Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jie Huang
- Key Laboratory of Sustainable Development of Marine Fisheries, The Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- National Laboratory for Marine Science and Technology, Qingdao, China
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Cannell JJ, Grant WB, Holick MF. Vitamin D and inflammation. DERMATO-ENDOCRINOLOGY 2015; 6:e983401. [PMID: 26413186 PMCID: PMC4580066 DOI: 10.4161/19381980.2014.983401] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/21/2014] [Accepted: 10/24/2014] [Indexed: 02/06/2023]
Abstract
Several studies found an inverse relationship between 25-hydroxyvitamin D [25(OH)D] and markers of inflammation. A controversy exists as to whether vitamin D lowers inflammation or whether inflammation lowers 25(OH)D concentrations. Certainly 25(OH)D concentrations fall after major surgery. However, is this due to inflammation lowering 25(OH)D or is 25(OH)D being metabolically cleared by the body to quell inflammation. We searched the literature and found 39 randomized controlled trials (RCT) of vitamin D and markers of inflammation. Seventeen found significantly reduced inflammatory markers, 19 did not, one was mixed and one showed adverse results. With few exceptions, studies in normal subjects, obesity, type 2 diabetics, and stable cardiovascular disease did not find significant beneficial effects. However, we found that 6 out of 7 RCTS of vitamin D3 in highly inflammatory conditions (acute infantile congestive heart failure, multiple sclerosis, inflammatory bowel disease, cystic fibrosis, SLE, active TB and evolving myocardial infarction) found significant reductions. We found baseline and final 25(OH)D predicted RCTs with significant reduction in inflammatory markers. Vitamin D tends to modestly lower markers of inflammation in highly inflammatory conditions, when baseline 25(OH)D levels were low and when achieved 25(OH)D levels were higher. Future inquiries should: recruit subjects with low baseline 25(OH)D levels, subjects with elevated markers of inflammation, subjects with inflammatory conditions, achieve adequate final 25(OH)D levels, and use physiological doses of vitamin D. We attempted to identify all extant randomized controlled trials (RCTs) of vitamin D that used inflammatory markers as primary or secondary endpoints.
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Affiliation(s)
| | - William B Grant
- Sunlight, Nutrition, and Health Research Center ; San Francisco, CA USA
| | - Michael F Holick
- Department of Medicine; Section on Endocrinology, Nutrition and Diabetes, Vitamin D, Skin and Bone Research Laboratory; Boston University Medical Center ; Boston, MA USA
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Anestakis D, Petanidis S, Kalyvas S, Nday CM, Tsave O, Kioseoglou E, Salifoglou A. Mechanisms and applications of interleukins in cancer immunotherapy. Int J Mol Sci 2015; 16:1691-710. [PMID: 25590298 PMCID: PMC4307328 DOI: 10.3390/ijms16011691] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 01/05/2015] [Indexed: 12/11/2022] Open
Abstract
Over the past years, advances in cancer immunotherapy have resulted in innovative and novel approaches in molecular cancer diagnostics and cancer therapeutic procedures. However, due to tumor heterogeneity and inter-tumoral discrepancy in tumor immunity, the clinical benefits are quite restricted. The goal of this review is to evaluate the major cytokines-interleukins involved in cancer immunotherapy and project their basic biochemical and clinical applications. Emphasis will be given to new cytokines in pre-clinical development, and potential directions for future investigation using cytokines. Furthermore, current interleukin-based approaches and clinical trial data from combination cancer immunotherapies will also be discussed. It appears that continuously increasing comprehension of cytokine-induced effects, cancer stemness, immunoediting, immune-surveillance as well as understanding of molecular interactions emerging in the tumor microenvironment and involving microRNAs, autophagy, epithelial-mesenchymal transition (EMT), inflammation, and DNA methylation processes may hold much promise in improving anti-tumor immunity. To this end, the emerging in-depth knowledge supports further studies on optimal synergistic combinations and additional adjuvant therapies to realize the full potential of cytokines as immunotherapeutic agents.
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Affiliation(s)
- Doxakis Anestakis
- Laboratory of General Biology, Medical School, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Savvas Petanidis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Spyridon Kalyvas
- Department of Internal Medicine, General Hospital of Halkidiki, Poligiros 63100, Greece.
| | - Christiane M Nday
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Olga Tsave
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Efrosini Kioseoglou
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Athanasios Salifoglou
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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77
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Abstract
Over the past years, advances in cancer immunotherapy have resulted in innovative and novel approaches in molecular cancer diagnostics and cancer therapeutic procedures. However, due to tumor heterogeneity and inter-tumoral discrepancy in tumor immunity, the clinical benefits are quite restricted. The goal of this review is to evaluate the major cytokines-interleukins involved in cancer immunotherapy and project their basic biochemical and clinical applications. Emphasis will be given to new cytokines in pre-clinical development, and potential directions for future investigation using cytokines. Furthermore, current interleukin-based approaches and clinical trial data from combination cancer immunotherapies will also be discussed. It appears that continuously increasing comprehension of cytokine-induced effects, cancer stemness, immunoediting, immune-surveillance as well as understanding of molecular interactions emerging in the tumor microenvironment and involving microRNAs, autophagy, epithelial-mesenchymal transition (EMT), inflammation, and DNA methylation processes may hold much promise in improving anti-tumor immunity. To this end, the emerging in-depth knowledge supports further studies on optimal synergistic combinations and additional adjuvant therapies to realize the full potential of cytokines as immunotherapeutic agents.
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Abstract
Cytokines, currently known to be more than 130 in number, are small MW (<30 kDa) key signaling proteins that modulate cellular activities in immunity, infection, inflammation and malignancy. Key to understanding their function is recognition of their pleiotropism and often overlapping and functional redundancies. Classified here into 9 main families, most of the 20 approved cytokine preparations (18 different cytokines; 3 pegylated), all in recombinant human (rh) form, are grouped in the hematopoietic growth factor, interferon, platelet-derived growth factor (PDGF) and transforming growth factor β (TGFβ) families. In the hematopoietin family, approved cytokines are aldesleukin (rhIL-2), oprelvekin (rhIL-11), filgrastim and tbo-filgrastim (rhG-CSF), sargramostim (rhGM-CSF), metreleptin (rh-leptin) and the rh-erythropoietins, epoetin and darbepoietin alfa. Anakinra, a recombinant receptor antagonist for IL-1, is in the IL-1 family; recombinant interferons alfa-1, alfa-2, beta-1 and gamma-1 make up the interferon family; palifermin (rhKGF) and becaplermin (rhPDGF) are in the PDGF family; and rhBMP-2 and rhBMP-7 represent the TGFβ family. The main physicochemical features, FDA-approved indications, modes of action and side effects of these approved cytokines are presented. Underlying each adverse events profile is their pleiotropism, potency and capacity to release other cytokines producing cytokine 'cocktails'. Side effects, some serious, occur despite cytokines being endogenous proteins, and this therefore demands caution in attempts to introduce individual members into the clinic. This caution is reflected in the relatively small number of cytokines currently approved by regulatory agencies and by the fact that 14 of the FDA-approved preparations carry warnings, with 10 being black box warnings.
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79
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Mir IN, Chalak LF. Serum biomarkers to evaluate the integrity of the neurovascular unit. Early Hum Dev 2014; 90:707-11. [PMID: 25064445 DOI: 10.1016/j.earlhumdev.2014.06.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 06/23/2014] [Indexed: 12/11/2022]
Abstract
Biomarkers have the potential to enable the clinicians to screen infants for brain injury, monitor progression of disease, identify injured brain regions, assess efficacy of neuroprotective therapies, and offer hope to identify the timing of the injury, thus shedding light on the potential pathophysiology and the most effective therapy. Currently, clinicians do not routinely use biomarkers to care for neonates with Neonatal Encephalopathy (NE) and brain injury due to prenatal hypoxia-asphyxia. This review will cover potential biomarkers of the neurovascular unit in the setting of NE that (i) can help assess the degree or severity of encephalopathy at birth; (ii) can help monitor progression of disease process and efficacy of neuroprotective therapy; (iii) can help assess neurodevelopmental outcome. These biomarkers will be summarized in two categories: 1) Specific biomarkers targeting the neurovascular unit such as glial fibrillary acidic protein (GFAP), ubiquitin carboxyl-terminal hydrolase L1 (UCH-L1), S100B, and neuron specific enolase (NSE) and 2) general inflammatory cytokines, such as interleukin-6 (IL-6), interleukin-1b (IL-1b), and pNF-H, among others.
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Affiliation(s)
- Imran N Mir
- Dept. of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Lina F Chalak
- Dept. of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States.
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80
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Di Fusco D, Izzo R, Figliuzzi MM, Pallone F, Monteleone G. IL-21 as a therapeutic target in inflammatory disorders. Expert Opin Ther Targets 2014; 18:1329-38. [DOI: 10.1517/14728222.2014.945426] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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81
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Sorror ML, Martin PJ, Storb RF, Bhatia S, Maziarz RT, Pulsipher MA, Maris MB, Davis C, Deeg HJ, Lee SJ, Maloney DG, Sandmaier BM, Appelbaum FR, Gooley TA. Pretransplant comorbidities predict severity of acute graft-versus-host disease and subsequent mortality. Blood 2014; 124:287-95. [PMID: 24797298 PMCID: PMC4093684 DOI: 10.1182/blood-2014-01-550566] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 04/21/2014] [Indexed: 12/19/2022] Open
Abstract
Whether the hematopoietic cell transplantation comorbidity index (HCT-CI) can provide prognostic information about development of acute graft-versus-host disease (GVHD) and subsequent mortality is unknown. Five institutions contributed information on 2985 patients given human leukocyte antigen-matched grafts to address this question. Proportional hazards models were used to estimate the hazards of acute GVHD and post-GVHD mortality after adjustment for known risk variables. Higher HCT-CI scores predicted increased risk of grades 3 to 4 acute GVHD (P < .0001 and c-statistic of 0.64), and tests of interaction suggested that this association was consistent among different conditioning intensities, donor types, and stem cell sources. Probabilities of grades 3 to 4 GVHD were 13%, 18%, and 24% for HCT-CI risk groups of 0, 1 to 4, and ≥5. The HCT-CI was statistically significantly associated with mortality rates following diagnosis of grade 2 (hazard ratio [HR] = 1.24; P < .0001) or grades 3 to 4 acute GVHD (HR = 1.19; P < .0001). Patients with HCT-CI scores of ≥3 who developed grades 3 to 4 acute GVHD had a 2.63-fold higher risk of mortality than those with scores of 0 to 2 and did not develop acute GVHD. Thus, pretransplant comorbidities are associated with the development and severity of acute GVHD and with post-GVHD mortality. The HCT-CI could be useful in designing trials for GVHD prevention and could inform expectations for GVHD treatment trials.
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Affiliation(s)
- Mohamed L Sorror
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Paul J Martin
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Rainer F Storb
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | | | - Richard T Maziarz
- Center for Hematologic Malignancies, Knight Cancer Institute, and Division of Hematology and Medical Oncology, Oregon Health and Science University Knight Cancer Institute, Portland, OR
| | - Michael A Pulsipher
- Division of Hematology, University of Utah School of Medicine, Salt Lake City, UT; Pediatric Blood and Marrow Transplant Program, Primary Children's Medical Center, Huntsman Cancer Institute, Salt Lake City, UT
| | - Michael B Maris
- Colorado Blood Cancer Institute at Presbyterian/St. Luke's Medical Center, Denver, CO
| | - Christopher Davis
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - H Joachim Deeg
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Stephanie J Lee
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - David G Maloney
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Brenda M Sandmaier
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Frederick R Appelbaum
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Theodore A Gooley
- Clinical Statistics Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; and Department of Biostatistics, University of Washington School of Public Health, Seattle, WA
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82
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Salim E, Kumolosasi E, Jantan I. Inhibitory effect of selected medicinal plants on the release of pro-inflammatory cytokines in lipopolysaccharide-stimulated human peripheral blood mononuclear cells. J Nat Med 2014; 68:647-53. [DOI: 10.1007/s11418-014-0841-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 04/11/2014] [Indexed: 01/13/2023]
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83
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In vitro modulation of TH1 and TH2 cytokine expression by edible tuber of Dioscorea alata and study of correlation patterns of the cytokine expression. FOOD SCIENCE AND HUMAN WELLNESS 2014. [DOI: 10.1016/j.fshw.2014.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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84
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da Cunha NB, Vianna GR, da Almeida Lima T, Rech E. Molecular farming of human cytokines and blood products from plants: Challenges in biosynthesis and detection of plant-produced recombinant proteins. Biotechnol J 2013; 9:39-50. [DOI: 10.1002/biot.201300062] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 10/21/2013] [Accepted: 11/19/2013] [Indexed: 12/20/2022]
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85
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Mullen L, Adams G, Layward L, Vessillier S, Annenkov A, Mittal G, Rigby A, Sclanders M, Baker D, Gould D, Chernajovsky Y. Latent cytokines for targeted therapy of inflammatory disorders. Expert Opin Drug Deliv 2013; 11:101-10. [PMID: 24294995 DOI: 10.1517/17425247.2014.863872] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The use of cytokines as therapeutic agents is important, given their potent biological effects. However, this very potency, coupled with the pleiotropic nature and short half-life of these molecules, has limited their therapeutic use. Strategies to increase the half-life and to decrease toxicity are necessary to allow effective treatment with these molecules. AREAS COVERED A number of strategies are used to overcome the natural limitations of cytokines, including PEGylation, encapsulation in liposomes, fusion to targeting peptides or antibodies and latent cytokines. Latent cytokines are engineered using the latency-associated peptide of transforming growth factor-β to produce therapeutic cytokines/peptides that are released only at the site of disease by cleavage with disease-induced matrix metalloproteinases. The principles underlying the latent cytokine technology are described and are compared to other methods of cytokine delivery. The potential of this technology for developing novel therapeutic strategies for the treatment of diseases with an inflammatory-mediated component is discussed. EXPERT OPINION Methods of therapeutic cytokine delivery are addressed. The latent cytokine technology holds significant advantages over other methods of drug delivery by providing simultaneously increased half-life and localised drug delivery without systemic effects. Cytokines that failed clinical trials should be reassessed using this delivery system.
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Affiliation(s)
- Lisa Mullen
- Queen Mary University of London, William Harvey Research Institute, Bone and Joint Research Unit, Barts and The London Medical School , Charterhouse Square , London EC1M 6BQ, UK
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86
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Poelstra K, Beljaars L, Melgert BN. Cell-specific delivery of biologicals: problems, pitfalls and possibilities of antifibrotic compounds in the liver. Drug Discov Today 2013; 18:1237-42. [DOI: 10.1016/j.drudis.2013.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 05/22/2013] [Indexed: 02/06/2023]
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87
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Guo P, Thomas JD, Bruce MP, Hinton TM, Bean AGD, Lowenthal JW. The chicken TH1 response: potential therapeutic applications of ChIFN-γ. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 41:389-396. [PMID: 23707786 DOI: 10.1016/j.dci.2013.05.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 05/13/2013] [Indexed: 06/02/2023]
Abstract
The outcomes of viral infections are costly in terms of human and animal health and welfare worldwide. The observed increase in the virulence of some viruses and failure of many vaccines to stop these infections has lead to the apparent need to develop new anti-viral strategies. One approach to dealing with viral infection may be to employ the therapeutic administration of recombinant cytokines to act as 'immune boosters' to assist in augmenting the host response to virus. With this in mind, a greater understanding of the immune response, particularly cell mediated T-helper-1 (TH1) type responses, is imperative to the development of new anti-viral and vaccination strategies. Following the release of the chicken genome, a number of TH1-type cytokines have been identified, including chicken interleukin-12 (ChIL-12), ChIL-18 and interferon-γ ChIFN-γ), highlighting the nature of the TH1-type response in this non-mammalian vertebrate. To date a detailed analysis of the in vivo biological function of these cytokines has been somewhat hampered by access to large scale production techniques. This review describes the role of TH-1 cytokines in immune responses to viruses and explores their potential use in enhancing anti-viral treatment strategies in chickens. Furthermore, this review focuses on the example of ChIFN-γ treatment of Chicken Anemia Virus (CAV) infection. CAV causes amongst other things thymocyte depletion and thymus atrophy, as well as immunosuppression in chickens. However, due to vaccination, clinical disease appears less often, nevertheless, the subclinical form of the disease is often associated with secondary complicating infections due to an immunocompromised state. Since CAV-induced immunosuppression can cause a marked decrease in the immune response against other pathogens, understanding this aspect of the disease is critically important, as well as providing insights into developing new control approaches. With increasing emphasis on developing alternative control programs for poultry diseases, novel therapeutic strategies provide one approach. We show here that the in ovo administration of ChIFN-γ impacts the depletion of T-cell precursors during CAV infection. Therefore, it appears that ChIFN-γ may have the potential to be used as a novel therapeutic reagent to impact virus infection and alter immunosuppression caused by CAV and potentially other pathogens.
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Affiliation(s)
- Pengju Guo
- CSIRO Biosecurity Flagship, Australian Animal Health Laboratory, Geelong, Vic, Australia
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88
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Ghareeb K, Awad WA, Soodoi C, Sasgary S, Strasser A, Böhm J. Effects of feed contaminant deoxynivalenol on plasma cytokines and mRNA expression of immune genes in the intestine of broiler chickens. PLoS One 2013; 8:e71492. [PMID: 23977054 PMCID: PMC3748120 DOI: 10.1371/journal.pone.0071492] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/05/2013] [Indexed: 01/07/2023] Open
Abstract
An experiment was conducted to investigate the individual and combined effects of dietary deoxynivalenol (DON) and a microbial feed additive on plasma cytokine level and on the expression of immune relevant genes in jejunal tissues of broilers. A total of 40 broiler chicks were obtained from a commercial hatchery and divided randomly into four groups (10 birds per group). Birds were reared in battery cages from one day old for 5 weeks. The dietary groups were 1) control birds fed basal diet; 2) DON group fed basal diet contaminated with 10 mg DON/ kg feed; 3) DON + Mycofix group fed basal diet contaminated with 10 mg DON/ kg feed and supplemented with a commercial feed additive, Mycofix® Select (MS) (2.5 kg/ton of feed); 4) Mycofix group fed basal diet supplemented with MS (2.5 kg/ton of feed). At 35 days, the plasma levels of tumor necrosis factor alpha (TNF-α) and interleukin 8 (IL-8) were quantified by ELISA test kits. Furthermore, the mRNA expression of TNF-α, IL-8, IL-1β, interferon gamma (IFNγ), transforming growth factor beta receptor I (TGFBR1) and nuclear factor kappa-light-chain-enhancer of activated B cells 1 (NF-κβ1) in jejunum were quantified by qRT-PCR. The results showed that the plasma TNF-α decreased in response to DON, while in combination with MS, the effect of DON was reduced. DON down-regulated the relative gene expression of IL-1β, TGFBR1 and IFN-γ, and addition of MS to the DON contaminated diet compensates these effects on IL-1β, TGFBR1 but not for IFN-γ. Furthermore, supplementation of MS to either DON contaminated or control diet up-regulated the mRNA expression of NF-κβ1. In conclusion, DON has the potential to provoke and modulate immunological reactions of broilers and subsequently could increase their susceptibility to disease. The additive seemed to have almost as much of an effect as DON, albeit on different genes.
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Affiliation(s)
- Khaled Ghareeb
- Department for Farm Animals and Veterinary Public Health, Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine, Vienna, Austria
- Department of Animal Hygiene, Behaviour and Management, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
- * E-mail:
| | - Wageha A. Awad
- Clinic for Avian, Reptile and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Chimidtseren Soodoi
- Department of Biomedical Sciences, Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | - Soleman Sasgary
- Department of Biomedical Sciences, Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | - Alois Strasser
- Department of Biomedical Sciences, Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | - Josef Böhm
- Department for Farm Animals and Veterinary Public Health, Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine, Vienna, Austria
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89
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Soranno DE, Lu HD, Weber HM, Rai R, Burdick JA. Immunotherapy with injectable hydrogels to treat obstructive nephropathy. J Biomed Mater Res A 2013; 102:2173-80. [PMID: 23913854 DOI: 10.1002/jbm.a.34902] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 07/25/2013] [Indexed: 11/08/2022]
Abstract
Hydrogels are gaining attention as injectable vehicles for delivery of therapeutics for a range of applications. We describe self-assembling and injectable Dock-and-Lock hydrogels for local delivery of interleukin-10 (IL-10) to abate the progression of inflammation and fibrosis that leads to chronic kidney disease. As monitored with a fluorescent tag, hydrogels degraded within a few days in vitro and matched IL-10 release profiles; however, hydrogels remained in the kidney for up to 30 days in vivo. A unilateral ureteral obstruction (UUO) mouse model was used to investigate in vivo outcomes after hydrogel injection and IL-10 delivery. Eight groups were investigated (7, 21, 35 days, n = 4): healthy, sham, healthy injected with mouse serum albumin (MSA), healthy + hydrogel, UUO, UUO + IL-10, UUO + hydrogel, UUO + hydrogel/IL-10. 15 μL of IL-10, hydrogel, or hydrogel/IL-10 was injected under the renal capsule 3 days after the UUO. Immunohistochemistry (IHC) was performed on paraffin sections to identify macrophages and apoptotic cells and trichrome staining was used to evaluate fibrosis. There were no significant differences in inflammatory markers between all control groups. With hydrogel delivery, macrophage infiltration and apoptosis were significantly reduced at days 21 and 35 compared to untreated animals. By day 35, IL-10 delivery via hydrogel reduced macrophage infiltration and apoptosis more than IL-10 injection alone. Fibrosis was decreased by day 35 in all treatment groups. This work supports the use of hydrogel delivery of IL-10 to treat chronic kidney disease.
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Affiliation(s)
- Danielle E Soranno
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
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90
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Interleukin-1 gene cluster and IL-1 receptor polymorphisms in Iranian patients with systemic lupus erythematosus. Rheumatol Int 2013; 33:2591-6. [DOI: 10.1007/s00296-013-2784-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 05/16/2013] [Indexed: 10/26/2022]
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91
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Shaker OG, Sadik NAH, El-Hamid NA. Impact of single nucleotide polymorphism in tumor necrosis factor-α gene 308G/A in Egyptian asthmatic children and wheezing infants. Hum Immunol 2013; 74:796-802. [PMID: 23376082 DOI: 10.1016/j.humimm.2013.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 12/05/2012] [Accepted: 01/14/2013] [Indexed: 11/17/2022]
Abstract
Bronchial asthma is a common disease with multiple determinants that include genetic variation. Although tumor necrosis factor alpha (TNF-α) is a major pro-inflammatory cytokine, the functions of genetic polymorphisms in this cytokine has not been thoroughly examined in the context of asthma pathology. Therefore, we aimed to investigate whether single nucleotide polymorphism (SNP) in TNF-α is associated with asthma and wheezing and whether the association is related to the severity of the disease and other epidemiological factors. Frequencies of TNF-α-308G/A polymorphism were compared in 100 asthmatic children, 100 wheezy infants and 100 age and gender matched controls. Genotype frequencies for TNF-α-308G/A were significantly higher in asthmatic children (60%) and wheezy infants (68%) than the control group (30%). Higher serum levels of TNF-α were observed in genotypes G/A and G/G of asthmatic children and wheezy infants than in controls. No association was found between the G/A polymorphism and the severity of the disease, the total eosinophil count and IgE levels in both groups. We can conclude that genetic variation in TNF-α-308G/A may contribute to childhood asthma and wheezing. These findings could be helpful for future early intervention studies which may have a potential impact on family counseling and management.
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Affiliation(s)
- Olfat G Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
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92
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Antibody–cytokine fusion proteins. Arch Biochem Biophys 2012; 526:194-205. [DOI: 10.1016/j.abb.2012.03.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 02/28/2012] [Accepted: 03/01/2012] [Indexed: 01/01/2023]
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93
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Blaber SP, Webster RA, Hill CJ, Breen EJ, Kuah D, Vesey G, Herbert BR. Analysis of in vitro secretion profiles from adipose-derived cell populations. J Transl Med 2012; 10:172. [PMID: 22913454 PMCID: PMC3479070 DOI: 10.1186/1479-5876-10-172] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 08/16/2012] [Indexed: 12/13/2022] Open
Abstract
Background Adipose tissue is an attractive source of cells for therapeutic purposes because of the ease of harvest and the high frequency of mesenchymal stem cells (MSCs). Whilst it is clear that MSCs have significant therapeutic potential via their ability to secrete immuno-modulatory and trophic cytokines, the therapeutic use of mixed cell populations from the adipose stromal vascular fraction (SVF) is becoming increasingly common. Methods In this study we have measured a panel of 27 cytokines and growth factors secreted by various combinations of human adipose-derived cell populations. These were 1. co-culture of freshly isolated SVF with adipocytes, 2. freshly isolated SVF cultured alone, 3. freshly isolated adipocytes alone and 4. adherent adipose-derived mesenchymal stem cells (ADSCs) at passage 2. In addition, we produced an ‘in silico’ dataset by combining the individual secretion profiles obtained from culturing the SVF with that of the adipocytes. This was compared to the secretion profile of co-cultured SVF and adipocytes. Two-tailed t-tests were performed on the secretion profiles obtained from the SVF, adipocytes, ADSCs and the ‘in silico’ dataset and compared to the secretion profiles obtained from the co-culture of the SVF with adipocytes. A p-value of < 0.05 was considered statistically different. To assess the overall changes that may occur as a result of co-culture we compared the proteomes of SVF and SVF co-cultured with adipocytes using iTRAQ quantitative mass spectrometry. Results A co-culture of SVF and adipocytes results in a distinct secretion profile when compared to all other adipose-derived cell populations studied. This illustrates that cellular crosstalk during co-culture of the SVF with adipocytes modulates the production of cytokines by one or more cell types. No biologically relevant differences were detected in the proteomes of SVF cultured alone or co-cultured with adipocytes. Conclusions The use of mixed adipose cell populations does not appear to induce cellular stress and results in enhanced secretion profiles. Given the importance of secreted cytokines in cell therapy, the use of a mixed cell population such as the SVF with adipocytes may be considered as an alternative to MSCs or fresh SVF alone.
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Affiliation(s)
- Sinead P Blaber
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Office 256, Building E8C, Balaclava Rd, North Ryde, NSW 2109, Australia
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94
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The role of cytokines and inflammatory cells in perinatal brain injury. Neurol Res Int 2012; 2012:561494. [PMID: 22530124 PMCID: PMC3317045 DOI: 10.1155/2012/561494] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 11/25/2011] [Accepted: 12/13/2011] [Indexed: 12/25/2022] Open
Abstract
Perinatal brain injury frequently complicates preterm birth and leads to significant long-term morbidity. Cytokines and inflammatory cells are mediators in the common pathways associated with perinatal brain injury induced by a variety of insults, such as hypoxic-ischemic injury, reperfusion injury, toxin-mediated injury, and infection. This paper examines our current knowledge regarding cytokine-related perinatal brain injury and specifically discusses strategies for attenuating cytokine-mediated brain damage.
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95
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Hook KM, Abrams CS. The loss of homeostasis in hemostasis: new approaches in treating and understanding acute disseminated intravascular coagulation in critically ill patients. Clin Transl Sci 2012; 5:85-92. [PMID: 22376264 PMCID: PMC5439915 DOI: 10.1111/j.1752-8062.2011.00351.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Disseminated intravascular coagulation (DIC) profoundly increases the morbidity and mortality of patients who have sepsis. Both laboratory and clinical research advanced the understanding of the biology and pathophysiology of DIC. This, in turn, gave rise to improved therapies and patient outcomes. Beginning with a stimulus causing disruption of vascular integrity, cytokines and chemokines cause activation of systemic coagulation and inflammation. Seemingly paradoxically, the interplay between coagulation and inflammation also inhibits endogenous anticoagulants, fibrinolytics, and antiinflammatory pathways. The earliest documented and best-studied microbial cause of DIC is the lipopolysaccharide endotoxin of Gram-negative bacteria. Extensive microvascular thrombi emerge in the systemic vasculature due to dysregulation of coagulation. The result of this unrestrained, widespread small vessel thromboses multiorgan system failure. Consumption of platelets and coagulation factors during this process can lead to an elevated risk of hemorrhage. The management of these patients with simultaneous hemorrhage and thrombosis is complex and challenging. Definitive treatment of DIC, and attenuation of end-organ damage, requires control of the inciting cause. Currently, activated protein C is the only approved therapy in the United States for sepsis complicated by DIC. Further research is needed in this area to improve clinical outcomes for patients with sepsis.
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Affiliation(s)
- Karen M Hook
- Division of Hematology/Oncology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
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96
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Bansal R, Prakash J, Post E, Beljaars L, Schuppan D, Poelstra K. Novel engineered targeted interferon-gamma blocks hepatic fibrogenesis in mice. Hepatology 2011; 54:586-96. [PMID: 21538439 DOI: 10.1002/hep.24395] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 04/19/2011] [Indexed: 01/13/2023]
Abstract
UNLABELLED Liver fibrogenesis is a process tightly controlled by endogenous anti- and pro-fibrogenic factors. Interferon gamma (IFNγ) is a potent antifibrogenic cytokine in vitro and might therefore represent a powerful therapeutic entity. However, its poor pharmacokinetics and adverse effects, due to the presence of IFNγ receptors on nearly all cells, prevented its clinical application so far. We hypothesized that delivery of IFNγ specifically to the disease-inducing cells and concurrently avoiding its binding to nontarget cells might increase therapeutic efficacy and avoid side effects. We conjugated IFNγ to a cyclic peptide recognizing the platelet-derived growth factor beta receptor (PDGFβR) which is strongly up-regulated on activated hepatic stellate cells (HSC), the key effector cells responsible for hepatic fibrogenesis. The IFNγ conjugates were analyzed in vitro for PDGFβR-specific binding and biological effects and in vivo in acute (early) and chronic (progressive and established) carbon-tetrachloride-induced liver fibrosis in mice. The targeted-IFNγ construct showed PDGFβR-specific binding to fibroblasts and HSC and inhibited their activation in vitro. In vivo, the targeted-IFNγ construct attenuated local HSC activation in an acute liver injury model. In the established liver fibrosis model, it not only strongly inhibited fibrogenesis but also induced fibrolysis. In contrast, nontargeted IFNγ was ineffective in both models. Moreover, in contrast to unmodified IFNγ, our engineered targeted-IFNγ did not induce IFNγ-related side effects such as systemic inflammation, hyperthermia, elevated plasma triglyceride levels, and neurotropic effects. CONCLUSION This study presents a novel HSC-targeted engineered-IFNγ, which in contrast to systemic IFNγ, blocked liver fibrogenesis and is devoid of side effects, by specifically acting on the key pathogenic cells within the liver.
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Affiliation(s)
- Ruchi Bansal
- Department of Pharmacokinetics, Toxicology and Targeting, University of Groningen, Groningen, The Netherlands.
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97
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Jancalek R, Svizenska I, Klusakova I, Dubovy P. Bilateral changes of IL-10 protein in lumbar and cervical dorsal root ganglia following proximal and distal chronic constriction injury of peripheral nerve. Neurosci Lett 2011; 501:86-91. [PMID: 21763399 DOI: 10.1016/j.neulet.2011.06.052] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Revised: 06/23/2011] [Accepted: 06/25/2011] [Indexed: 01/01/2023]
Abstract
Interleukin-10 prevents transition of a physiological inflammatory reaction to a pathological state that may result in neuropathic pain. We studied bilateral changes of IL-10 protein levels in L4-L5 and C7-C8 dorsal root ganglia (DRG) after a chronic constriction injury (CCI) of either L4-L5 spinal nerves (pCCI) or the sciatic nerve (dCCI). Rats undergoing pCCI or dCCI were left to survive for 1, 3, 7 or 14 d, sham-operated rats for 3 or 14 d. After the survival time, C7-C8 and L4-L5 DRG were removed bilaterally from naïve, operated, and sham-operated rats and IL-10 protein was detected by immunohistochemical staining and measured using ELISA analysis. Unilateral pCCI and dCCI induced a transient bilateral elevation in IL-10 protein level not only in the homonymous lumbar DRG but also in the heteronymous cervical DRG nonassociated with the spinal segments of constricted nerve. Sham operations also induced bilateral elevation of IL-10 protein in both homonymous and heteronymous DRG. Our experiments revealed that the more proximal is a nerve injury the more rapid is the initial increase and slower the subsequent decrease of IL-10 protein level in DRG. Changes of IL-10 protein in DRG nonassociated with damaged nerve could be related to a general neuroinflammatory reaction of the nervous system to injury and thereby promote potential of the DRG neurons for regenerating their axons following a conditioning lesion.
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Affiliation(s)
- R Jancalek
- Department of Anatomy, Division of Neuroanatomy, Medical Faculty, Masaryk University, Brno, Czech Republic
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98
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Recombinant cytokines from plants. Int J Mol Sci 2011; 12:3536-52. [PMID: 21747693 PMCID: PMC3131577 DOI: 10.3390/ijms12063536] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 05/11/2011] [Accepted: 05/27/2011] [Indexed: 11/21/2022] Open
Abstract
Plant-based platforms have been successfully applied for the last two decades for the efficient production of pharmaceutical proteins. The number of commercialized products biomanufactured in plants is, however, rather discouraging. Cytokines are small glycosylated polypeptides used in the treatment of cancer, immune disorders and various other related diseases. Because the clinical use of cytokines is limited by high production costs they are good candidates for plant-made pharmaceuticals. Several research groups explored the possibilities of cost-effective production of animal cytokines in plant systems. This review summarizes recent advances in this field.
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Abstract
INTRODUCTION A role for cytokines in the pathophysiology of erectile dysfunction (ED) has emerged. Cytokines induce genes that synthesize other peptides in the cytokine family and several mediators, such as prostanoids, leukotrienes, nitric oxide, bradykinin, reactive oxygen species, and platelet-activating factor, all of which can affect vascular function. Consistent with the fact that the cavernosal tissue is a complex extension of the vasculature, risk factors that affect the vasculature have been shown to affect cavernosal function as well. Accordingly, the penile tissue has been recognized as an early sentinel for atherosclerosis that underlies coronary artery disease and cardiovascular diseases (CVD). AIM To review the literature pertaining to the role of tumor necrosis factor-alpha (TNF-α) in ED. METHODS PubMed search for pertinent publications on the role of cytokines, particularly TNF-α, in CVD and ED. MAIN OUTCOME MEASURES Clinical and experimental evidence demonstrates that TNF-α may play a role in ED. RESULTS TNF-α has been shown to play an important role in CVD, mainly due to its direct effects on the vasculature. In addition, high levels of TNF-α were demonstrated in patients with ED. In this review, we present a short description of the physiology of erection and the cytokine network. We focus on vascular actions of TNF-α that support a role for this cytokine as a potential candidate in the pathophysiology of ED, particularly in the context of CVD. A brief overview of its discovery, mechanisms of synthesis, receptors, and its main actions on the systemic and penile vasculature is also presented. CONCLUSIONS Considering that ED results from a systemic arterial defect not only confined to the penile vasculature, implication of TNF-α in the pathophysiology of ED offers a humoral linking between CVD and ED.
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Espelin CW, Goldsipe A, Sorger PK, Lauffenburger DA, de Graaf D, Hendriks BS. Elevated GM-CSF and IL-1beta levels compromise the ability of p38 MAPK inhibitors to modulate TNFalpha levels in the human monocytic/macrophage U937 cell line. MOLECULAR BIOSYSTEMS 2010; 6:1956-72. [PMID: 20617251 DOI: 10.1039/c002848g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rheumatoid arthritis (RA) is a complex, multicellular disease involving a delicate balance between both pro- and anti-inflammatory cytokines which ultimately determines the disease phenotype. The simultaneous presence of multiple signaling molecules, and more specifically their relative levels, potentially influences the efficacy of directed therapies. Using the human U937 monocytic cell line, we generated a self-consistent dataset measuring 50 cytokines and 23 phosphoproteins in the presence of 6 small molecule inhibitors under 15 stimulatory conditions throughout a 24 hour time course. From this dataset, we are able to explore phosphoprotein and cytokine relationships, as well as evaluate the significance of cellular context on the ability of small molecule inhibitors to block inflammatory processes. We show that the ability of a p38 inhibitor to attenuate TNFalpha production is influenced by local levels of GM-CSF and IL-1beta, two cytokines known to be elevated in the joints of RA patients. Within the cell, compensatory mechanisms between signaling pathways are apparent, as selective p38 MAPK inhibition results in the increased phosphorylation of other MAPKs (ERK and JNK) and their downstream substrates (CREB, c-Jun, and ATF-2). Further, we demonstrate that TNFalpha-neutralizing antibodies have secondary effects on cytokine production, impacting more than just TNFalpha alone. p38 MAPK inhibition using a small molecule inhibitor also blocks production of anti-inflammatory cytokines including IL-10, IL-1ra and IL-2ra. Collectively, the impact of cell context on TNFalpha production and unintended blockade of anti-inflammatory cytokines may compromise the efficacy of p38 inhibitors in a clinical setting. The effort described in this work evaluates the effect of inhibitors on multiple endpoints (both intra- and extracellular), under a range of biologically relevant conditions, thus providing a unique means for differentiation of compounds and potential opportunity for improved pharmacological manipulation of disease endpoints in RA.
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Affiliation(s)
- Christopher W Espelin
- Systems Biology Group, Pfizer Research Technology Center, 620 Memorial Drive, Cambridge, MA 02139, USA.
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