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Chang WS, Kim EJ, Lim YM, Yoon D, Son JY, Park JW, Hong SJ, Cho SH, Lee JS. Age-Related Changes in Immunological Factors and Their Relevance in Allergic Disease Development During Childhood. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2016; 8:338-45. [PMID: 27126727 PMCID: PMC4853511 DOI: 10.4168/aair.2016.8.4.338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 07/28/2015] [Accepted: 08/24/2015] [Indexed: 01/09/2023]
Abstract
Purpose Allergic diseases are triggered by Th2-mediated immune reactions to allergens and orchestrated by various immunological factors, including immune cells and cytokines. Although many reports have suggested that childhood is the critical period in the onset of allergic diseases and aging leads to alter the susceptibility of an individual to allergic diseases, age-related changes in various immunological factors in healthy individuals as well as their difference between healthy and allergic children have not yet been established. Methods We investigated the ratio of Th1/Th2 cells and the levels of 22 allergy-related cytokines across all age groups in individuals who were classified as clinically non-atopic and healthy. We also examined their differences between healthy and allergic children to evaluate immunological changes induced by the development of allergic diseases during childhood. Results The Th1/Th2 ratio rose gradually during the growth period including childhood, reaching peak values in the twenties-thirties age group. Th1/Th2 ratios were significantly lower in allergic children than in healthy controls, whereas 14 of 22 cytokines were significantly higher in allergic children than in healthy controls. On the other hand, there were no differences in Th1/Th2 ratios and cytokines between healthy and allergic adolescents. Conclusions In this study, age-related changes in Th1/Th2 ratios were found in normal controls across all age groups, and decreases in Th1/Th2 ratio were observed with increasing of 14 cytokines in allergic children. The results of this study may be helpful as reference values for both monitoring immunological changes according to aging in healthy individuals and distinguishing between normal and allergic subjects in terms of immune cells and soluble factors.
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Affiliation(s)
- Woo Sung Chang
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea
| | - Eun Jin Kim
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea
| | - Yeon Mi Lim
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea
| | - Dankyu Yoon
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea
| | - Jo Young Son
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea
| | - Jung Won Park
- Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Jong Hong
- Department of Pediatrics, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Heon Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Shil Lee
- Division of Allergy and Chronic Respiratory Disease, Center for Biomedical Sciences, Korea National Institute of Health, Korea Center for Disease Control and Prevention, Cheongju, Korea.
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202
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Administration of Myelin Basic Protein Peptides Encapsulated in Mannosylated Liposomes Normalizes Level of Serum TNF-α and IL-2 and Chemoattractants CCL2 and CCL4 in Multiple Sclerosis Patients. Mediators Inflamm 2016; 2016:2847232. [PMID: 27239100 PMCID: PMC4864531 DOI: 10.1155/2016/2847232] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 04/06/2016] [Indexed: 11/17/2022] Open
Abstract
We have previously shown that immunodominant MBP peptides encapsulated in mannosylated liposomes (Xemys) effectively suppressed experimental allergic encephalomyelitis (EAE). Within the frames of the successfully completed phase I clinical trial, we investigated changes in the serum cytokine profile after Xemys administration in MS patients. We observed a statistically significant decrease of MCP-1/CCL2, MIP-1β/CCL4, IL-7, and IL-2 at the time of study completion. In contrast, the serum levels of TNF-α were remarkably elevated. Our data suggest that the administration of Xemys leads to a normalization of cytokine status in MS patients to values commonly reported for healthy subjects. These data are an important contribution for the upcoming Xemys clinical trials.
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203
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Thibert KA, Raymond GV, Tolar J, Miller WP, Orchard PJ, Lund TC. Cerebral Spinal Fluid levels of Cytokines are elevated in Patients with Metachromatic Leukodystrophy. Sci Rep 2016; 6:24579. [PMID: 27079147 PMCID: PMC4832325 DOI: 10.1038/srep24579] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/30/2016] [Indexed: 01/08/2023] Open
Abstract
Metachromatic leukodystrophy (MLD) is a lysosomal storage disease resulting from a deficiency of arylsulfatase A causing an accumulation of cerebroside sulfate, a lipid normally abundant in myelin. Sulfatide accumulation is associated with progressive demyelination and a clinical presentation in severe disease forms that is dominated by motor manifestations. Cerebral inflammation may contribute to the pathophysiology of MLD. To date, cytokine levels in the cerebral spinal fluid of MLD patients have not previously been reported. The objective of this study was to evaluate the concentration of inflammatory cytokines in the CSF of patients with MLD and to compare these levels to unaffected controls. Of 22 cytokines evaluated, we documented significant elevations of MCP-1, IL-1Ra, IL-8, MIP-1b and VEGF in the MLD patients compared to unaffected controls. The elevated cytokines identified in this study may play a significant role in the pathophysiology of MLD. Better understanding of the inflammatory and neurodegenerative process of MLD may lead to improved targeted therapies.
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Affiliation(s)
- Kathryn A Thibert
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, 55455, US
| | - Gerald V Raymond
- Division of Pediatric Neurology, University of Minnesota, Minneapolis, Minnesota, 55455, US
| | - Jakub Tolar
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, 55455, US
| | - Weston P Miller
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, 55455, US
| | - Paul J Orchard
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, 55455, US
| | - Troy C Lund
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, 55455, US
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204
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Teachey DT, Lacey SF, Shaw PA, Melenhorst JJ, Maude SL, Frey N, Pequignot E, Gonzalez VE, Chen F, Finklestein J, Barrett DM, Weiss SL, Fitzgerald JC, Berg RA, Aplenc R, Callahan C, Rheingold SR, Zheng Z, Rose-John S, White JC, Nazimuddin F, Wertheim G, Levine BL, June CH, Porter DL, Grupp SA. Identification of Predictive Biomarkers for Cytokine Release Syndrome after Chimeric Antigen Receptor T-cell Therapy for Acute Lymphoblastic Leukemia. Cancer Discov 2016; 6:664-79. [PMID: 27076371 DOI: 10.1158/2159-8290.cd-16-0040] [Citation(s) in RCA: 738] [Impact Index Per Article: 92.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 04/06/2016] [Indexed: 12/25/2022]
Abstract
UNLABELLED Chimeric antigen receptor (CAR)-modified T cells with anti-CD19 specificity are a highly effective novel immune therapy for relapsed/refractory acute lymphoblastic leukemia. Cytokine release syndrome (CRS) is the most significant and life-threatening toxicity. To improve understanding of CRS, we measured cytokines and clinical biomarkers in 51 CTL019-treated patients. Peak levels of 24 cytokines, including IFNγ, IL6, sgp130, and sIL6R, in the first month after infusion were highly associated with severe CRS. Using regression modeling, we could accurately predict which patients would develop severe CRS with a signature composed of three cytokines. Results were validated in an independent cohort. Changes in serum biochemical markers, including C-reactive protein and ferritin, were associated with CRS but failed to predict development of severe CRS. These comprehensive profiling data provide novel insights into CRS biology and, importantly, represent the first data that can accurately predict which patients have a high probability of becoming critically ill. SIGNIFICANCE CRS is the most common severe toxicity seen after CAR T-cell treatment. We developed models that can accurately predict which patients are likely to develop severe CRS before they become critically ill, which improves understanding of CRS biology and may guide future cytokine-directed therapy. Cancer Discov; 6(6); 664-79. ©2016 AACR.See related commentary by Rouce and Heslop, p. 579This article is highlighted in the In This Issue feature, p. 561.
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Affiliation(s)
- David T Teachey
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
| | - Simon F Lacey
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Pamela A Shaw
- Department of Biostatistics and Epidemiology, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - J Joseph Melenhorst
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Shannon L Maude
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Noelle Frey
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Division of Hematology-Oncology, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Edward Pequignot
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Vanessa E Gonzalez
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Fang Chen
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Jeffrey Finklestein
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - David M Barrett
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Scott L Weiss
- Department of Anesthesia and Critical Care Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Julie C Fitzgerald
- Department of Anesthesia and Critical Care Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Robert A Berg
- Department of Anesthesia and Critical Care Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Richard Aplenc
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Colleen Callahan
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Susan R Rheingold
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Zhaohui Zheng
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | | | - Jason C White
- Fort Belvoir Community Hospital, Fort Belvoir, Virginia
| | - Farzana Nazimuddin
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Gerald Wertheim
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Bruce L Levine
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Carl H June
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Center for Cellular Immunotherapies, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - David L Porter
- Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Division of Hematology-Oncology, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Stephan A Grupp
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Abramson Cancer Center, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Department of Pathology and Laboratory Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
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205
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Gilbert M, Livingston R, Felberg J, Bishop JJ. Multiplex single molecule counting technology used to generate interleukin 4, interleukin 6, and interleukin 10 reference limits. Anal Biochem 2016; 503:11-20. [PMID: 27019152 DOI: 10.1016/j.ab.2016.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 10/22/2022]
Abstract
Detecting biomarkers at pg/ml concentrations or below is, in many situations, critical for quantifying levels in healthy individuals as well as the changes that can occur in the progression of disease states. The ability to detect multiple biomarkers from the same sample allows for better diagnoses, more efficient testing, and lower volumes of sample required. Based on single molecule counting technology, a multiplex instrument was designed and built that is capable of detecting cytokines and other low-abundance proteins at sub-pg/ml quantities in human plasma samples. The multiplex single molecule counting instrument was used to generate 95% reference limits for interleukin 4 (IL-4, <0.61 pg/ml), interleukin 6 (IL-6, <6.53 pg/ml), and interleukin 10 (IL-10, <1.08 pg/ml) from 100 healthy human donor plasma samples, with more than 90% of IL-4 concentrations and 100% of IL-6 and IL-10 concentrations above the limit of detection.
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206
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Demmer E, Van Loan MD, Rivera N, Rogers TS, Gertz ER, German JB, Smilowitz JT, Zivkovic AM. Addition of a dairy fraction rich in milk fat globule membrane to a high-saturated fat meal reduces the postprandial insulinaemic and inflammatory response in overweight and obese adults. J Nutr Sci 2016; 5:e14. [PMID: 27313850 PMCID: PMC4791522 DOI: 10.1017/jns.2015.42] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 12/09/2015] [Accepted: 12/15/2015] [Indexed: 11/06/2022] Open
Abstract
Meals high in SFA, particularly palmitate, are associated with postprandial inflammation and insulin resistance. Milk fat globule membrane (MFGM) has anti-inflammatory properties that may attenuate the negative effects of SFA-rich meals. Our objective was to examine the postprandial metabolic and inflammatory response to a high-fat meal composed of palm oil (PO) compared with PO with an added dairy fraction rich in MFGM (PO+MFGM) in overweight and obese men and women (n 36) in a randomised, double-blinded, cross-over trial. Participants consumed two isoenergetic high-fat meals composed of a smoothie enriched with PO with v. without a cream-derived complex milk lipid fraction ( dairy fraction rich in MFGM) separated by a washout of 1-2 weeks. Serum cytokines, adhesion molecules, cortisol and markers of inflammation were measured at fasting, and at 1, 3 and 6 h postprandially. Glucose, insulin and lipid profiles were analysed in plasma. Consumption of the PO + MFGM v. PO meal resulted in lower total cholesterol (P = 0·021), LDL-cholesterol (P = 0·046), soluble intracellular adhesion molecule (P = 0·005) and insulin (P = 0·005) incremental AUC, and increased IL-10 (P = 0·013). Individuals with high baseline C-reactive protein (CRP) concentrations (≥3 mg/l, n 17) had higher (P = 0·030) insulin at 1 h after the PO meal than individuals with CRP concentrations <3 mg/l (n 19). The addition of MFGM attenuated this difference between CRP groups. The addition of a dairy fraction rich in MFGM attenuated the negative effects of a high-SFA meal by reducing postprandial cholesterol, inflammatory markers and insulin response in overweight and obese individuals, particularly in those with elevated CRP.
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Affiliation(s)
- Elieke Demmer
- Department of Nutrition,
University of California Davis, Davis,
CA, USA
| | - Marta D. Van Loan
- Department of Nutrition,
University of California Davis, Davis,
CA, USA
- USDA/ARS Western Human Nutrition Research
Center, Davis, CA, USA
| | - Nancy Rivera
- Department of Nutrition,
University of California Davis, Davis,
CA, USA
| | - Tara S. Rogers
- Department of Nutrition,
University of California Davis, Davis,
CA, USA
| | - Erik R. Gertz
- USDA/ARS Western Human Nutrition Research
Center, Davis, CA, USA
| | - J. Bruce German
- Foods for Health Institute, University of
California, Davis, CA, USA
- Department of Food Science &
Technology, University of California,
Davis, CA, USA
| | - Jennifer T. Smilowitz
- Foods for Health Institute, University of
California, Davis, CA, USA
- Department of Food Science &
Technology, University of California,
Davis, CA, USA
| | - Angela M. Zivkovic
- Department of Nutrition,
University of California Davis, Davis,
CA, USA
- Foods for Health Institute, University of
California, Davis, CA, USA
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207
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Allison DJ, Chapman B, Wolfe D, Sequeira K, Hayes K, Ditor DS. Effects of a Functional Electrical Stimulation-Assisted Cycling Program on Immune and Cardiovascular Health in Persons with Spinal Cord Injury. Top Spinal Cord Inj Rehabil 2016; 22:71-78. [PMID: 29398895 DOI: 10.1310/sci2201-71] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Background: Spinal cord injury (SCI) is associated with both a state of chronic inflammation and an increased prevalence of cardiovascular disease (CVD). These disorders are closely linked and have been shown to negatively influence one another. Participation in regular exercise has been shown to be an effective intervention strategy in the treatment of each of these disorders. For individuals with SCI who may lack the lower limb motor capabilities to perform certain traditional exercise modalities, functional electrical stimulation (FES) cycling may provide an effective alternative. Objective: The purpose of this study was to examine the effects of 12 weeks of FES training performed 3 times per week on physiological indices of cardiovascular function as well as molecular indices of inflammation and cardiovascular health. Methods: Ten individuals with chronic SCI were included. Measures of central and peripheral cardiovascular function as well as hematological and immunological markers were assessed before and after the 12-week exercise program. Results: Enhancements in exercise performance as well as a corresponding increase in peripheral cardiovascular function were achieved, as shown by a significant 34% increase in pulse volume (P = .04) and trends toward increases in cross-sectional area (P = .09) and arterial inflow volume (P = .11) of the common femoral artery. Despite this, no change in any hematological or immunological markers was evident. Conclusion: Although the efficacy of FES exercise in enhancing exercise performance (time and distance to fatigue) and peripheral cardiovascular function has been reaffirmed, no alterations in any molecular indices of cardiovascular risk were achieved.
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Affiliation(s)
- David J Allison
- Department of Kinesiology, Brock University, St. Catharines, Ontario, Canada.,Brock-Niagara Centre for Health and Well-being, St Catharines, Ontario, Canada
| | - Bonnie Chapman
- Aging, Rehabilitation & Geriatric Care, Lawson Health Research Institute, London, Ontario, Canada
| | - Dalton Wolfe
- Aging, Rehabilitation & Geriatric Care, Lawson Health Research Institute, London, Ontario, Canada
| | - Keith Sequeira
- Aging, Rehabilitation & Geriatric Care, Lawson Health Research Institute, London, Ontario, Canada
| | - Keith Hayes
- Aging, Rehabilitation & Geriatric Care, Lawson Health Research Institute, London, Ontario, Canada
| | - David S Ditor
- Department of Kinesiology, Brock University, St. Catharines, Ontario, Canada.,Brock-Niagara Centre for Health and Well-being, St Catharines, Ontario, Canada
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208
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Consumption of a high-fat meal containing cheese compared with a vegan alternative lowers postprandial C-reactive protein in overweight and obese individuals with metabolic abnormalities: a randomised controlled cross-over study. J Nutr Sci 2016; 5:e9. [PMID: 27313852 PMCID: PMC4791521 DOI: 10.1017/jns.2015.40] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 11/17/2015] [Accepted: 12/11/2015] [Indexed: 02/06/2023] Open
Abstract
Dietary recommendations suggest decreased consumption of SFA to minimise CVD risk;
however, not all foods rich in SFA are equivalent. To evaluate the effects of SFA in a
dairy food matrix, as Cheddar cheese, v. SFA from a vegan-alternative
test meal on postprandial inflammatory markers, a randomised controlled cross-over trial
was conducted in twenty overweight or obese adults with metabolic abnormalities.
Individuals consumed two isoenergetic high-fat mixed meals separated by a 1- to 2-week
washout period. Serum was collected at baseline, and at 1, 3 and 6 h postprandially and
analysed for inflammatory markers (IL-6, IL-8, IL-10, IL-17, IL-18, TNFα, monocyte
chemotactic protein-1 (MCP-1)), acute-phase proteins C-reactive protein (CRP) and serum
amyloid-A (SAA), cellular adhesion molecules and blood lipids, glucose and insulin.
Following both high-fat test meals, postprandial TAG concentrations rose steadily
(P < 0·05) without a decrease by 6 h. The incremental AUC (iAUC)
for CRP was significantly lower (P < 0·05) in response to the
cheese compared with the vegan-alternative test meal. A treatment effect was not observed
for any other inflammatory markers; however, for both test meals, multiple markers
significantly changed from baseline over the 6 h postprandial period (IL-6, IL-8, IL-18,
TNFα, MCP-1, SAA). Saturated fat in the form of a cheese matrix reduced the iAUC for CRP
compared with a vegan-alternative test meal during the postprandial 6 h period. The study
is registered at clinicaltrials.gov under NCT01803633.
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209
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Kim BJ, Bae KS, Kim HS, Chun YH, Yoon JS, Kim HH, Kim JT. Clinical characteristics of interferon-gamma-inducible protein of 10 kDa in children with wheezing. ALLERGY ASTHMA & RESPIRATORY DISEASE 2016. [DOI: 10.4168/aard.2016.4.3.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Beom Joon Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kil Seong Bae
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwan Soo Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoon Hong Chun
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong-Seo Yoon
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyun Hee Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin Tack Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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210
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Cytokine Patterns in Healthy Adolescent Girls: Heterogeneity Captured by Variable and Person-Centered Statistical Strategies. Psychosom Med 2016; 78:646-56. [PMID: 27187849 PMCID: PMC4927350 DOI: 10.1097/psy.0000000000000321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Little is known about variation in individual cytokines/cytokine profiles for a large healthy, pediatric population. When cytokines in a healthy group are not abnormally high as in a disease state, it is challenging to determine appropriate statistical strategies. The aims of the study were (1) to describe variation among cytokine concentrations and profiles in healthy adolescent girls, (2) to illustrate utility of data reduction approaches novel to cytokine research, (variable-centered [principal factor analysis, PFA], person-centered [latent profile analysis, LPA]), and (3) to demonstrate utility of such methods in linking cytokine profiles to health outcomes (e.g., depressive, anxiety symptoms). METHOD Serum was analyzed for 13 cytokines representing adaptive and innate immune responses in 262 girls (age = 11, 13, 15, and 17 years). RESULTS There was great variation in cytokine concentrations. PFA revealed a four-factor solution explaining 73.13% of the shared variance among 13 cytokines (e.g., factor 1 included interleukin [IL]-4, IL-13, IL-5, interferon gamma; 26.65% of the shared variance). The LPA supported classifying girls into subgroups characterized by "high overall" (7.3% of sample), "high adaptive" (26.7%), "high innate" (21%), or "low overall" (45%) cytokine levels. Factors and profiles were useful in describing individual differences in depressive/anxiety symptoms (e.g., factor 1 positively associated with depressive symptoms but negatively with trait anxiety; increased depressive symptoms or trait anxiety was associated with greater likelihood of being in the "high adaptive" group). CONCLUSIONS Healthy girls showed differences in cytokine levels and patterns of variation and important associations with psychological variables. PFA and LPA offer novel approaches useful for examining cytokine panels in healthy populations.
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211
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Lizano PL, Keshavan MS, Tandon N, Mathew IT, Mothi SS, Montrose DM, Yao JK. Angiogenic and immune signatures in plasma of young relatives at familial high-risk for psychosis and first-episode patients: A preliminary study. Schizophr Res 2016; 170:115-22. [PMID: 26692348 PMCID: PMC4735038 DOI: 10.1016/j.schres.2015.12.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 11/27/2015] [Accepted: 12/02/2015] [Indexed: 01/12/2023]
Abstract
Schizophrenia (SZ) is a heterogeneous disorder that presents in adolescence, persists into adulthood, and has many clinical features. Recent evidence suggests that abnormalities in inflammatory, neurotrophic, and angiogenic processes may play a role in the etiology of SZ. The identification of molecular biomarkers early in the course of disease is crucial to transforming diagnostic and therapeutic avenues. We investigated 14 molecular analytes focusing on inflammatory, neurotrophic and angiogenic pathways from the plasma of antipsychotic-naïve familial high risk for SZ (FHR; n=35) and first-episode psychosis (FEP; n=45) subjects, in comparison to healthy controls (HC, n=39). We identified distinct alterations in molecular signatures in young relatives at FHR for SZ prior to psychosis onset and FEP subjects. Firstly, the expression of soluble fms-like tyrosine kinase (sFlt-1), an anti-angiogenic factor that binds vascular endothelial growth factor (VEGF), was significantly increased in the FHR group compared to HC, but not in FEP. Secondly, interferon gamma (IFNγ) was significantly reduced in the FEP group compared to HC. Thirdly, network analysis revealed a positive correlation between sFlt-1 and VEGF, suggesting an activation of the angiogenic cascade in the FHR group, which persists in FEP. Our results indicate an angiogenesis and immunological dysfunction early in the course of disease, shifting the balance towards anti-angiogenesis and inflammation.
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Affiliation(s)
- Paulo L Lizano
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA, United States,Division of Public Psychiatry, Massachusetts Mental Health Center, Boston, MA, United States
| | - Matcheri S Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA, United States,Division of Public Psychiatry, Massachusetts Mental Health Center, Boston, MA, United States,Department of Psychiatry, Harvard Medical School, Boston, MA, United States,Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Neeraj Tandon
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA, United States,Baylor College of Medicine, Houston, TX, United States
| | - Ian T Mathew
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Suraj Sarvode Mothi
- Division of Public Psychiatry, Massachusetts Mental Health Center, Boston, MA, United States
| | - Debra M Montrose
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Jeffrey K Yao
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; VA Pittsburgh Healthcare System, Medical Research Service, Pittsburgh, PA, United States; Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States.
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212
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Serum Markers in Rheumatoid Arthritis: A Longitudinal Study of Patients Undergoing Infliximab Treatment. Int J Rheumatol 2015; 2015:276815. [PMID: 26788062 PMCID: PMC4695666 DOI: 10.1155/2015/276815] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/30/2015] [Accepted: 11/30/2015] [Indexed: 12/14/2022] Open
Abstract
Objective. The aim of this study was to investigate the clinical effect and serum markers in a cohort of rheumatoid arthritis patients with moderate to high disease activity, participating in an open clinical phase IV study conducted in Norway between 2001 and 2003 receiving infliximab treatment. Method. A total of 39 patients were studied, with a mean age of 54 years and 12-year disease duration. The analyses were performed using serum from patients at four assessment time points: baseline and 3, 6, and 12 months after starting treatment with infliximab. A wide variety of clinical data was collected and disease activity of 28 joints and Simple Disease Activity Index were calculated. The joint erosion was determined by X-ray imaging and the Sharp/van der Heijde score was determined. Serum analysis included multiplex immunoassays for 12 cytokines, 5 matrix metalloproteases, and 2 VEGFs. Results. The majority of the RA patients in this study had initially moderate to high disease activity and the infliximab treatment reduced the disease activity significantly and also reduced any further joint destruction and improved disease status. Most of the serum levels of cytokines and metalloproteases remained unchanged during the course of the study, and we were unable to detect changes in TNF-α in serum. Serum levels of IL-6 and VEGF-A decreased significantly after initiation of infliximab treatment. Conclusion. The serum levels of IL-6 and VEGF-A may be promising disease markers as they vary with disease progression. The clinical significance of these findings is yet to be determined and has to be confirmed in future clinical trials before being applied in the clinics.
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Characterization of Adsorbents for Cytokine Removal from Blood in an In Vitro Model. J Immunol Res 2015; 2015:484736. [PMID: 26770992 PMCID: PMC4685123 DOI: 10.1155/2015/484736] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/05/2015] [Accepted: 11/10/2015] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Cytokines are basic targets that have to be removed effectively in order to improve the patient's health status in treating severe inflammation, sepsis, and septic shock. Although there are different adsorbents commercially available, the success of their clinical use is limited. Here, we tested different adsorbents for their effective removal of cytokines from plasma and the resulting effect on endothelial cell activation. METHODS The three polystyrene divinylbenzene (PS-DVB) based adsorbents Amberchrom CG161c and CG300m and a clinically approved haemoperfusion adsorbent (HAC) were studied with regard to cytokine removal in human blood. To induce cytokine release from leucocytes, human blood cells were stimulated with 1 ng/ml LPS for 4 hours. Plasma was separated and adsorption experiments in a dynamic model were performed. The effect of cytokine removal on endothelial cell activation was evaluated using a HUVEC-based cell culture model. The beneficial outcome was assessed by measuring ICAM-1, E-selectin, and secreted cytokines IL-8 and IL-6. Additionally the threshold concentration for HUVEC activation by TNF-α and IL-1β was determined using this cell culture model. RESULTS CG161c showed promising results in removing the investigated cytokines. Due to its pore size the adsorbent efficiently removed the key factor TNF-α, outperforming the commercially available adsorbents. The CG161c treatment reduced cytokine secretion and expression of cell adhesion molecules by HUVEC which underlines the importance of effective removal of TNF-α in inflammatory diseases. CONCLUSION These results confirm the hypothesis that cytokine removal from the blood should approach physiological levels in order to reduce endothelial cell activation.
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Acharya A, Koh ML, Kheur S, Watt RM, Jin L, Mattheos N. Salivary IL-1β and red complex bacteria as predictors of the inflammatory status in sub-peri-implant niches of subjects with peri-implant mucositis. Clin Oral Implants Res 2015; 27:662-7. [PMID: 26456524 DOI: 10.1111/clr.12713] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVES Salivary biomarkers may enhance diagnostic sensitivity for peri-implant disease assessment. This study aimed to investigate the association of salivary periodontopathogen count and salivary interleukin-1beta (IL-1β) level with the peri-implant crevicular fluid IL-1β response at peri-implant mucositis (PM) sites among subjects with differing periodontal disease susceptibility. MATERIALS AND METHODS Eighty-seven partially edentulous subjects having at least one implant with peri-implant mucositis were included: 40 with history of chronic periodontitis (P) and 47 with no history of periodontitis (NP). Salivary IL-1β, peri-implant crevicular fluid (PICF) IL-1β, and salivary red complex pathogen counts were recorded. Subjects were scored according to a threshold salivary pathogen level of more than 5log (10) counts and assigned a "red complex score." Quartiles of salivary and PICF IL-1β levels were also scored. Area under receiver operating curve (AUC) was computed to predict the highest PICF IL-1β score using salivary biomarker as predictors and age-adjusted logistic regression performed for the significant predictors. RESULTS In the NP group, red complex score (AUC = 0.758 P = 0.010) (odds ratio = 1.377) and salivary IL-1β (AUC = 0.708 P = 0.038) (odds ratio = 2.506) were significant predictors of highest PICF IL-1β quartile score. In the P group, no significant associations were noted. CONCLUSIONS Salivary biomarkers could distinguish the "high" pro-inflammatory responders at PM sites only in subjects without inherent periodontal disease susceptibility. Periodontal susceptibility may impact the immuno-inflammatory response in sub-peri-implant niches of those with peri-implant mucositis.
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Affiliation(s)
- Aneesha Acharya
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR China.,Dr D Y Patil Dental College and Hospital, Pimpri, Pune, India
| | - Mei Leng Koh
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR China
| | - Supriya Kheur
- Dr D Y Patil Dental College and Hospital, Pimpri, Pune, India
| | - Rory M Watt
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR China
| | - Lijian Jin
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR China
| | - Nikos Mattheos
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR China
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Cytokine Concentrations in Plasma from Children with Severe and Non-Severe Community Acquired Pneumonia. PLoS One 2015; 10:e0138978. [PMID: 26407163 PMCID: PMC4583304 DOI: 10.1371/journal.pone.0138978] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 09/07/2015] [Indexed: 02/04/2023] Open
Abstract
Background Children in low and middle-income countries have a high burden of pneumonia. Measuring the cytokine responses may be useful to identify novel markers for diagnosing, monitoring, and treating pneumonia. Objective To describe and compare a wide range of inflammatory mediators in plasma from children with WHO-defined severe and non-severe community acquired pneumonia (CAP), and explore to what extent certain mediators are associated with severity and viral detection. Methods We collected blood samples from 430 children with severe (n = 43) and non-severe (n = 387) CAP. Plasma from these children were analysed for 27 different cytokines, and we measured the association with age, disease severity and viral detection. Results There were generally higher plasma concentrations of several cytokines with both pro-inflammatory and anti-inflammatory effects among children with severe CAP than in children with non-severe CAP. We found significantly higher concentrations of interleukin (IL)-1, IL-4, IL-6, IL-8, IL-9, IL-15, eotaxin, basic fibroblast growth factor (b-FGF), granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor (GM-CSF), and tumor necrosis factor-alpha (TNF-α) in the group of severe CAP. Most of these associations persisted when adjusting for age in linear regression analyses. The cytokine response was strongly associated with age but to a lesser extent with viral etiology. Conclusion The plasma concentrations of several cytokines, both with pro-inflammatory and anti-inflammatory effects, were higher among children with severe illness. In particular G-CSF and IL-6 reflected severity and might provide complementary information on the severity of the infection. Trial registration ClinicalTrials.gov NCT00148733
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216
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Marcuzzi A, Piscianz E, Valencic E, Monasta L, Vecchi Brumatti L, Tommasini A. To Extinguish the Fire from Outside the Cell or to Shutdown the Gas Valve Inside? Novel Trends in Anti-Inflammatory Therapies. Int J Mol Sci 2015; 16:21277-93. [PMID: 26370962 PMCID: PMC4613252 DOI: 10.3390/ijms160921277] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/19/2015] [Accepted: 08/31/2015] [Indexed: 12/26/2022] Open
Abstract
Cytokines are the most important soluble mediators of inflammation. Rare pediatric diseases provided exemplar conditions to study the anti-inflammatory efficacy of new generation therapies (biologics/biopharmaceuticals) selectively targeting single cytokines. Monoclonal antibodies and recombinant proteins have revolutionized anti-inflammatory therapies in the last two decades, allowing the specific targeting of single cytokines. They are very effective in extinguishing inflammation from outside the cell, even with the risk of an excessive and prolonged immunosuppression. Small molecules can enter the cell and shutdown the valve of inflammation by directly targeting signal proteins involved in cytokine release or in response to cytokines. They are orally-administrable drugs whose dosage can be easily adjusted to obtain the desired anti-inflammatory effect. This could make these drugs more suitable for a wide range of diseases as stroke, gout, or neurological impairment, where inflammatory activation plays a pivotal role as trigger. Autoinflammatory diseases, which have previously put anti-cytokine proteins in the limelight, can again provide a valuable model to measure the real potential of small inhibitors as anti-inflammatory agents.
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Affiliation(s)
- Annalisa Marcuzzi
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, Trieste 34128, Italy.
| | - Elisa Piscianz
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" - , via dell'Istria, 65/1, Trieste 34137, Italy.
| | - Erica Valencic
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" - , via dell'Istria, 65/1, Trieste 34137, Italy.
| | - Lorenzo Monasta
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" - , via dell'Istria, 65/1, Trieste 34137, Italy.
| | - Liza Vecchi Brumatti
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" - , via dell'Istria, 65/1, Trieste 34137, Italy.
| | - Alberto Tommasini
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" - , via dell'Istria, 65/1, Trieste 34137, Italy.
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Sverrisson K, Axelsson J, Rippe A, Asgeirsson D, Rippe B. Acute reactive oxygen species (ROS)-dependent effects of IL-1β, TNF-α, and IL-6 on the glomerular filtration barrier (GFB) in vivo. Am J Physiol Renal Physiol 2015; 309:F800-6. [PMID: 26290366 DOI: 10.1152/ajprenal.00111.2015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 08/17/2015] [Indexed: 01/20/2023] Open
Abstract
This study was performed to investigate the immediate actions of the proinflammatory cytokines IL-1β, TNF-α, and IL-6 on the permeability of the glomerular filtration barrier (GFB) in rats and to test whether these actions are dependent upon the release of reactive oxygen species (ROS). In anesthetized rats, blood access was achieved and the left ureter was cannulated for urine collection. Rats were continuously infused intravenously with either IL-1β (0.4 and 2 μg·kg(-1)·h(-1)), TNF-α (0.4 and 2 μg·kg(-1)·h(-1)), or IL-6 (4 and 8 μg·kg(-1)·h(-1)), together with polydisperse FITC-Ficoll-70/400 and inulin for 1 h. Plasma and urine samples were analyzed by high performance size exclusion chromatography (HPSEC) for determination of glomerular sieving coefficients (θ). The glomerular filtration rate (GFR) was also assessed (51Cr-EDTA). In separate experiments, the superoxide scavenger tempol (30 mg·kg(-1)·h(-1)) was given before and during cytokine infusions. IL-1β and TNF-α caused rapid, partly reversible increases in glomerular permeability to large molecules (Ficoll50-80Å), peaking at 5-30 min, while IL-6 caused a more gradual increase in permeability, leveling off at 60 min. Tempol almost completely abrogated the glomerular permeability effects of the cytokines infused. In conclusion IL-1β, TNF-α, and IL-6, when infused systemically, caused immediate and partly reversible increases in glomerular permeability, which could be inhibited by the superoxide scavenger tempol, suggesting an important role of ROS in acute cytokine-induced permeability changes in the GFB.
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Affiliation(s)
| | | | - Anna Rippe
- Department of Nephrology, Lund University, Lund, Sweden
| | | | - Bengt Rippe
- Department of Nephrology, Lund University, Lund, Sweden
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Kim SS, Cho HJ, Won JH, Bae JI, Kang DR, Lee JD, Shin SJ, Lee KM, Yoo BM, Kim JK, Lee JH, Ahn SJ, Park JH, Cho SW, Cheong JY. Interleukin-8 level as a prognostic marker in patients with hepatitis B virus-associated hepatocellular carcinoma treated with transarterial chemoembolization. Cytokine 2015; 76:449-457. [PMID: 26163999 DOI: 10.1016/j.cyto.2015.07.001] [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: 05/23/2015] [Revised: 06/19/2015] [Accepted: 07/01/2015] [Indexed: 02/07/2023]
Abstract
We investigated the association between serum interleukin (IL)-8 levels and post-transarterial chemoembolization (TACE) outcomes in patients with hepatitis B virus (HBV)-associated HCC. We enrolled 119 TACE-treated patients with HBV-associated HCC; TACE refractoriness and liver transplantation (LT)-free survival were evaluated during follow-up. Pre-TACE serum levels of various cytokines (epidermal growth factor [EGF], fibroblast growth factor 2, granulocyte-colony stimulating factor [G-CSF], interferon-γ, IL-8, IL-12, IL-17A, interferon-γ-inducible protein-10, monocyte chemotactic protein-1, tumor necrosis factor-α and vascular endothelial growth factor) were analyzed. During a mean follow-up of 24.3 (1-79) months, 91 patients (76.5%) exhibited TACE refractoriness. In multivariate analyses, multiple tumors (hazard ratio [HR], 2.37; 95% confidence interval [CI], 1.28-4.39; P=0.006), large tumor size (HR, 2.36; 95% CI, 1.38-4.03; P=0.002), and combination of alpha-fetoprotein and IL-8 levels (AFP>400 ng/mL or IL-8>32 pg/mL; HR, 1.72; 95% CI, 1.03-2.85; P=0.037) independently predicted overall TACE refractoriness. Higher EGF (>35 pg/mL) and lower G-CSF levels (⩽ 12.5 pg/mL) were associated with early TACE refractoriness (<1 year; HR, 3.47; 95% CI, 1.01-11.96; P=0.049 and HR, 6.25; 95% CI, 1.62-23.81; P=0.008, respectively). Furthermore, high IL-8 level (>32 pg/mL; HR, 1.68; 95% CI, 1.09-2.59; P=0.020) was associated with poor LT-free survival. In conclusion, pretreatment serum IL-8 is a useful prognostic marker for TACE refractoriness and LT-free survival in TACE-treated patients with HBV-associated HCC.
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Affiliation(s)
- Soon Sun Kim
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Hyo Jung Cho
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Je Hwan Won
- Department of Radiology, Ajou University School of Medicine, Suwon, South Korea
| | - Jae Ik Bae
- Department of Radiology, Ajou University School of Medicine, Suwon, South Korea
| | - Dae Ryong Kang
- Department of Medical Humanities & Social Medicine, Ajou University School of Medicine, Suwon, South Korea
| | - Jung-Dong Lee
- Office of Biostatistics, Ajou University School of Medicine, Suwon, South Korea
| | - Sung Jae Shin
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Kee Myung Lee
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Byung Moo Yoo
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Jai Keun Kim
- Department of Radiology, Ajou University School of Medicine, Suwon, South Korea
| | - Jei Hee Lee
- Department of Radiology, Ajou University School of Medicine, Suwon, South Korea
| | - Seon Joo Ahn
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Ju Han Park
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Sung Won Cho
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Jae Youn Cheong
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea.
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Froessler B, Weber I, Hodyl NA, Saadat-Gilani K. Dynamic changes in clot formation determined using thromboelastometry after reinfusion of unwashed anticoagulated cell-salvaged whole blood in total hip arthroplasty. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2015; 13:448-54. [PMID: 26192786 PMCID: PMC4614298 DOI: 10.2450/2015.0311-14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 04/22/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND Cell salvage is a key part of patient blood management. Different techniques are available for salvaging blood. A new intra-operative autotransfusion filter system became available for reinfusion of unwashed whole blood. Concern exists regarding whether this technique induces coagulation disturbances, offsetting the benefits of the reinfusion of autologous blood. This study was designed to investigate the content of intra-operatively salvaged filtered blood and its impact after reinfusion on clot formation in patients undergoing primary hip arthroplasty. MATERIALS AND METHODS Twenty-five patients scheduled for primary total hip arthroplasty were enrolled in the study. Cell salvage was performed using a new intra-operative autotransfusion filter system. Before surgery and within 1 hour of reinfusion of 300 mL or more of salvaged whole blood, blood samples were taken to assess clot formation by thromboelastometry and standard laboratory-based coagulation profiling. Cytokine content of the salvaged blood was assessed by enzyme-linked immunosorbent assays. RESULTS Following reinfusion of 460 mL (median) of salvaged blood, thromboelastometry showed normal clot formation and did not indicate a coagulopathy. Clotting time, clot formation time, maximum firmness and maximum lysis all remained within the normal range. Standard laboratory coagulation tests were also normal in all patients before surgery and after reinfusion. Although monocyte chemoattractant protein-1 levels were higher than normal, all other measured cytokines were either undetectable or within the normal range. No adverse events were seen following cell salvage. DISCUSSION Reinfusion of unwashed salvaged whole blood did not alter clot formation in our patients. The results add to the knowledge about this approach and contribute to the growing body of evidence regarding the lack of adverse events when reinfusing unwashed shed blood in major orthopaedic procedures.
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Affiliation(s)
- Bernd Froessler
- Department of Anaesthesia, Lyell McEwin Hospital, Elizabeth Vale, Australia
- Discipline of Acute Care Medicine, The University of Adelaide, Adelaide, Australia
| | - Ingo Weber
- Department of Anaesthesia, Lyell McEwin Hospital, Elizabeth Vale, Australia
| | - Nicolette A. Hodyl
- The Robinson Research Institute, School of Paediatric and Reproductive Health, The University of Adelaide, Adelaide, Australia
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Th1, Th2, and Th17 Cytokine Involvement in Thyroid Associated Ophthalmopathy. DISEASE MARKERS 2015; 2015:609593. [PMID: 26089587 PMCID: PMC4451372 DOI: 10.1155/2015/609593] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 04/30/2015] [Accepted: 04/30/2015] [Indexed: 11/18/2022]
Abstract
To determine serum cytokine profiles in Graves' disease (GD) patients with or without active and inactive thyroid associated ophthalmopathy (TAO), we recruited 65 subjects: 10 GD only (without TAO), 25 GD + active TAO, 20 GD + TAO, and 10 healthy controls. Liquid chip assay was used to measure serum Th1/Th2/Th17 cytokines including IFN-γ (interferon-gamma), TNF-α (tumor necrosis factor-alpha), IL-1α (interleukin-1 alpha), IL-1Ra (IL-1 receptor antagonist), IL-2, IL-4, IL-6, and IL-17 and two chemokines: RANTES (regulated upon activation, normal T cell expressed and secreted) and IP-10 (IFN-γ-induced protein 10). Serum levels of TSH (thyroid stimulating hormone) receptor autoantibodies (TRAb) were measured using an enzyme linked immunosorbent assay. Compared with healthy controls, TAO patients showed significantly elevated serum levels of IFN-γ, TNF-α, IL-1α, IL-4, IL-6, IL-17, and IP-10. Comparing active and inactive TAO, serum Th1 cytokines IFN-γ and TNF-α were elevated in active TAO, while serum Th2 cytokine IL-4 was elevated in inactive TAO. Serum Th17 cytokine IL-17 was elevated in GD but reduced in both active and inactive TAO. A positive correlation was found between TRAb and IFN-γ, TNF-α, IL-1α, IL-2, IL-4, and IL-6. Taken together, serum Th1/Th2/Th17 cytokines and chemokines reflect TAO disease activity and may be implicated in TAO pathogenesis.
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221
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Korolkova OY, Myers JN, Pellom ST, Wang L, M'Koma AE. Characterization of Serum Cytokine Profile in Predominantly Colonic Inflammatory Bowel Disease to Delineate Ulcerative and Crohn's Colitides. CLINICAL MEDICINE INSIGHTS. GASTROENTEROLOGY 2015; 8:29-44. [PMID: 26078592 PMCID: PMC4459555 DOI: 10.4137/cgast.s20612] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 11/23/2014] [Accepted: 11/23/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND As accessible diagnostic approaches fail to differentiate between ulcerative colitis (UC) and Crohn’s colitis (CC) in one-third of patients with predominantly colonic inflammatory bowel disease (IBD), leading to inappropriate therapy, we aim to investigate the serum cytokine levels in these patients in search of molecular biometric markers delineating UC from CC. METHODS We measured 38 cytokines, chemokines, and growth factors using magnetic-bead-based multiplex immunoassay in 25 UC patients, 28 CC patients, and 30 controls. Our results are compared with those from a review of current literature regarding advances in serum cytokine profiles and associated challenges preventing their use for diagnostic/prognostic purposes. RESULTS Univariate analysis showed statistically significant increases of eotaxin, GRO, and TNF-α in UC patients compared to controls (Ctrl); interferon γ, interleukin (IL)-6, and IL-7 in CC group compared to Ctrl; and IL-8 in both UC and CC versus Ctrl. No cytokines were found to be different between UC and CC. A generalized linear model identified combinations of cytokines, allowing the identification of UC and CC patients, with area under the curve (AUC) = 0.936, as determined with receiver operating characteristic (ROC) analysis. CONCLUSIONS The current knowledge available about circulating cytokines in IBD is often contradictory. The development of an evidence-based tool using cytokines for diagnostic accuracy is still preliminary.
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Affiliation(s)
- Olga Y Korolkova
- Laboratory of Inflammatory Bowel Disease Research, Department of Biochemistry and Cancer Biology, Meharry Medical College School of Medicine, Nashville, Tennessee
| | - Jeremy N Myers
- Laboratory of Inflammatory Bowel Disease Research, Department of Biochemistry and Cancer Biology, Meharry Medical College School of Medicine, Nashville, Tennessee
| | - Samuel T Pellom
- Laboratory of Inflammatory Bowel Disease Research, Department of Biochemistry and Cancer Biology, Meharry Medical College School of Medicine, Nashville, Tennessee
| | - Li Wang
- Department of Statistics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Amosy E M'Koma
- Laboratory of Inflammatory Bowel Disease Research, Department of Biochemistry and Cancer Biology, Meharry Medical College School of Medicine, Nashville, Tennessee. ; Department of General Surgery, Colon and Rectal Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee. ; Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee
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Kleiner G, Zanin V, Monasta L, Crovella S, Caruso L, Milani D, Marcuzzi A. Pediatric patients with inflammatory bowel disease exhibit increased serum levels of proinflammatory cytokines and chemokines, but decreased circulating levels of macrophage inhibitory protein-1β, interleukin-2 and interleukin-17. Exp Ther Med 2015; 9:2047-2052. [PMID: 26136934 DOI: 10.3892/etm.2015.2370] [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: 05/29/2014] [Accepted: 01/23/2015] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic and progressive inflammatory condition of the gastrointestinal tract. Although the causative events that lead to the onset of IBD are yet to be fully elucidated, deregulation of immune and inflammatory mechanisms are hypothesized to significantly contribute to this disorder. Since the onset of IBD is often during infancy, in the present study, the serum values of a large panel of cytokines and chemokines in pediatric patients (<18 years; n=26) were compared with age-matched controls (n=37). While elevations in the serum level of several proinflammatory and immune regulating cytokines were confirmed, such as interleukin (IL)-1β, IL-5, IL-7, interferon (IFN)-γ-inducible protein-10, IL-16, cutaneous T-cell-attracting chemokine, leukemia inhibitory factor, monokine induced by γ-IFN, IFN-α2 and IFN-γ, notably decreased levels of IL-2, IL-17 and macrophage inhibitory protein-1β were also observed. Therefore, while a number of proinflammatory cytokines exhibit increased levels in IBD patients, pediatric IBD patients may also exhibit certain aspects of a reduced immunological response.
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Affiliation(s)
- Giulio Kleiner
- Department of Advanced Diagnostic and Clinical Trials, Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', Trieste 34137, Italy
| | - Valentina Zanin
- Department of Advanced Diagnostic and Clinical Trials, Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', Trieste 34137, Italy
| | - Lorenzo Monasta
- Department of Advanced Diagnostic and Clinical Trials, Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', Trieste 34137, Italy
| | - Sergio Crovella
- Department of Advanced Diagnostic and Clinical Trials, Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', Trieste 34137, Italy ; Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste 34127, Italy
| | - Lorenzo Caruso
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara 44121, Italy
| | - Daniela Milani
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara 44121, Italy
| | - Annalisa Marcuzzi
- Department of Advanced Diagnostic and Clinical Trials, Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', Trieste 34137, Italy
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223
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Guerra AD, Cantu DA, Vecchi JT, Rose WE, Hematti P, Kao WJ. Mesenchymal Stromal/Stem Cell and Minocycline-Loaded Hydrogels Inhibit the Growth of Staphylococcus aureus that Evades Immunomodulation of Blood-Derived Leukocytes. AAPS JOURNAL 2015; 17:620-30. [PMID: 25716147 DOI: 10.1208/s12248-015-9728-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/28/2015] [Indexed: 01/03/2023]
Abstract
Mesenchymal stromal/stem cells (MSCs) have demonstrated favorable wound healing properties in addition to their differentiation capacity. MSCs encapsulated in biomaterials such as gelatin and polyethylene glycol (PEG) composite hydrogels have displayed an immunophenotype change that leads to the release of cytokines and growth factors to accelerate wound healing. However, therapeutic potential of implanted MSC-loaded hydrogels may be limited by non-specific protein adsorption that facilitates adhesion of bacterial pathogens such as planktonic Staphylococcus aureus (SA) to the surface with subsequent biofilm formation resistant to immune cell recognition and antibiotic activity. In this study, we demonstrate that blood-derived primary leukocytes and bone marrow-derived MSCs cannot inhibit colony-forming abilities of planktonic or biofilm-associated SA. However, we show that hydrogels loaded with MSCs and minocycline significantly inhibit colony-forming abilities of planktonic SA while maintaining MSC viability and multipotency. Our results suggest that minocycline and MSC-loaded hydrogels may decrease the bioburden of SA at implant sites in wounds, and may improve the wound healing capabilities of MSC-loaded hydrogels.
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Affiliation(s)
- Alberto Daniel Guerra
- School of Pharmacy, Division of Pharmaceutical Sciences, Pharmacy Practice Division, University of Wisconsin-Madison, 777 Highland Avenue, 7123 Rennebohm Hall, Madison, WI, 53705, USA
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224
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Vainshtein I, Roskos LK, Cheng J, Sleeman MA, Wang B, Liang M. Quantitative measurement of the target-mediated internalization kinetics of biopharmaceuticals. Pharm Res 2015; 32:286-99. [PMID: 25208874 PMCID: PMC4284384 DOI: 10.1007/s11095-014-1462-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 07/24/2014] [Indexed: 12/20/2022]
Abstract
PURPOSE Measurement of internalization of biopharmaceuticals targeting cell surface proteins can greatly facilitate drug development. The objective of this study was to develop a reliable method for determination of internalization rate constant (kint) and to demonstrate its utility. METHODS This method utilized confocal imaging to record the internalization kinetics of fluorescence-tagged biopharmaceuticals in live-cells and a quantitative image-analysis algorithm for kint determination. Kint was incorporated into a pharmacokinetic-pharmacodynamic (PK-PD) model for simulation of the drug PK profiles, target occupancy and the displacement of endogenous ligand. RESULTS The method was highly sensitive, allowing kint determination in cells expressing as low as 5,000 receptors/cell, and was amenable to adherent and suspension cells. Its feasibility in a mixed cell population, such as whole blood, was also demonstrated. Accurate assessment of the kint was largely attributed to continuous monitoring of internalization in live cells, rapid confocal image acquisition and quantitative image-analysis algorithm. Translational PK-PD simulations demonstrated that kint is a major determinant of the drug PK profiles, target occupancy, and the displacement of endogenous ligand. CONCLUSIONS The developed method is robust for broad cell types. Reliable kint assessment can greatly expedite biopharmaceutical development by facilitating target evaluation, drug affinity goal setting, and clinical dose projection.
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Affiliation(s)
- Inna Vainshtein
- Clinical Pharmacology & DMPK, MedImmune LLC, Hayward, CA USA
| | - Lorin K. Roskos
- Clinical Pharmacology & DMPK, MedImmune LLC, Hayward, CA USA
| | - Jackie Cheng
- Clinical Pharmacology & DMPK, MedImmune LLC, Hayward, CA USA
| | - Matthew A. Sleeman
- Respiratory, Inflammation and Autoimmunity, MedImmune Ltd, Cambridge, UK
| | - Bing Wang
- Clinical Pharmacology & DMPK, MedImmune LLC, Hayward, CA USA
| | - Meina Liang
- Clinical Pharmacology & DMPK, MedImmune LLC, Hayward, CA USA
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225
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Pawelec G, Goldeck D, Derhovanessian E. Inflammation, ageing and chronic disease. Curr Opin Immunol 2014; 29:23-8. [DOI: 10.1016/j.coi.2014.03.007] [Citation(s) in RCA: 255] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/27/2014] [Accepted: 03/29/2014] [Indexed: 12/15/2022]
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226
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Association of trauma exposure with proinflammatory activity: a transdiagnostic meta-analysis. Transl Psychiatry 2014; 4:e413. [PMID: 25050993 PMCID: PMC4119223 DOI: 10.1038/tp.2014.56] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/02/2014] [Accepted: 05/22/2014] [Indexed: 12/15/2022] Open
Abstract
Exposure to psychological trauma (for example, childhood/early life adversity, exposure to violence or assault, combat exposure, accidents or natural disasters) is known to increase one's risk of developing certain chronic medical conditions. Clinical and population studies provide evidence of systemic inflammatory activity in trauma survivors with various psychiatric and nonpsychiatric conditions. This transdiagnostic meta-analysis quantitatively integrates the literature on the relationship of inflammatory biomarkers to trauma exposure and related symptomatology. We conducted random effects meta-analyses relating trauma exposure to log-transformed inflammatory biomarker concentrations, using meta-regression models to test the effects of study quality and psychiatric symptomatology on the inflammatory outcomes. Across k=36 independent samples and n=14,991 participants, trauma exposure was positively associated with C-reactive protein (CRP), interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α (mean rs =0.2455, 0.3067, 0.2890, and 0.2998, respectively). No significant relationships were noted with fibrinogen, IL-2, IL-4, IL-8, or IL-10. In meta-regression models, the presence of psychiatric symptoms was a significant predictor of increased effect sizes for IL-1β and IL-6 (β=1.0175 and 0.3568, respectively), whereas study quality assessment scores were associated with increased effect sizes for IL-6 (β=0.3812). Positive correlations between inflammation and trauma exposure across a range of sample types and diagnoses were found. Although reviewed studies spanned an array of populations, research on any one specific psychiatric diagnosis was generally limited to one or two studies. The results suggest that chronic inflammation likely represents one potential mechanism underlying risk of health problems in trauma survivors.
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227
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Lee N, Shin MS, Kang KS, Yoo SA, Mohanty S, Montgomery RR, Shaw AC, Kang I. Human monocytes have increased IFN-γ-mediated IL-15 production with age alongside altered IFN-γ receptor signaling. Clin Immunol 2014; 152:101-10. [PMID: 24657713 PMCID: PMC4018768 DOI: 10.1016/j.clim.2014.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/26/2014] [Accepted: 03/11/2014] [Indexed: 11/26/2022]
Abstract
IL-15 is involved in regulating host defense and inflammation. Monocytes produce the biologically active cell surface IL-15 in response to IFN-γ. Although aging can alter the immune system, little is known about whether and how aging affects IFN-γ-mediated IL-15 production in human monocytes. We showed that monocytes of healthy older adults (age ≥ 65) had increased cell surface IL-15 expression in response to IFN-γ compared to those of healthy young adults (age ≤ 40). This finding stems in part from increased IFN-γ receptor (R)1/2 expression on monocytes in older adults, leading to enhanced STAT1 activation and interferon regulatory factor 1 synthesis with increased IL15 gene expression. Our study suggests that with aging the IFN-γ-mediated IL-15 production pathway in human monocytes is uncompromised, but rather augmented, and could be considered as a therapeutic target point to modulate host defense and inflammation in older adults.
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Affiliation(s)
- Naeun Lee
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Min Sun Shin
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ki Soo Kang
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Pediatrics, Jeju National University School of Medicine, Jeju 690-756, Republic of Korea
| | - Seung-Ah Yoo
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Subhasis Mohanty
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ruth R Montgomery
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Albert C Shaw
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Insoo Kang
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA.
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228
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Zhang B, Yang J, Zou Y, Gong M, Chen H, Hong G, Antaris AL, Li X, Liu CL, Chen C, Dai H. Plasmonic micro-beads for fluorescence enhanced, multiplexed protein detection with flow cytometry. Chem Sci 2014. [DOI: 10.1039/c4sc01206b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The fluorescence enhancement of small molecule fluorophores was achieved on micro-beads through gold nano-island coating, enabling the detection of low-abundant protein biomarkers.
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Affiliation(s)
- Bo Zhang
- Department of Chemistry
- Stanford University
- Stanford, USA
| | - Jiang Yang
- Department of Chemistry
- Stanford University
- Stanford, USA
| | - Yingping Zou
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083, China
| | - Ming Gong
- Department of Chemistry
- Stanford University
- Stanford, USA
| | - Hui Chen
- Department of Chemistry
- Stanford University
- Stanford, USA
| | - Guosong Hong
- Department of Chemistry
- Stanford University
- Stanford, USA
| | | | - Xiaoyang Li
- Department of Chemistry
- Stanford University
- Stanford, USA
| | | | - Changxin Chen
- Department of Chemistry
- Stanford University
- Stanford, USA
| | - Hongjie Dai
- Department of Chemistry
- Stanford University
- Stanford, USA
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