1
|
Manohar SM. Shedding Light on Intracellular Proteins using Flow Cytometry. Cell Biochem Biophys 2024:10.1007/s12013-024-01338-1. [PMID: 38831173 DOI: 10.1007/s12013-024-01338-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2024] [Indexed: 06/05/2024]
Abstract
Intracellular protein abundance is routinely measured in mammalian cells using population-based techniques such as western blotting which fail to capture single cell protein levels or using fluorescence microscopy which is although suitable for single cell protein detection but not for rapid analysis of large no. of cells. Flow cytometry offers rapid, high-throughput, multiparameter-based analysis of intracellular protein expression in statistically significant no. of cells at single cell resolution. In past few decades, customized assays have been developed for flow cytometric detection of specific intracellular proteins. This review discusses the scope of flow cytometry for intracellular protein detection in mammalian cells along with specific applications. Technological advancements to overcome the limitations of traditional flow cytometry for the same are also discussed.
Collapse
Affiliation(s)
- Sonal M Manohar
- Department of Biological Sciences, Sunandan Divatia School of Science, SVKM's NMIMS (Deemed-to-be) University, Vile Parle (West), Mumbai, 400056, India.
| |
Collapse
|
2
|
Woodward B, Hillyer LM, Monk JM. The Tolerance Model of Non-Inflammatory Immune Competence in Acute Pediatric Malnutrition: Origins, Evidence, Test of Fitness and Growth Potential. Nutrients 2023; 15:4922. [PMID: 38068780 PMCID: PMC10707886 DOI: 10.3390/nu15234922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
The tolerance model rests on the thesis of a physiologically regulated, albeit unsustainable, systemic attempt to adapt to the catabolic challenge posed by acute prepubescent malnutrition even in its severe forms. The model centers on the immunological component of the attempt, positing reorientation toward a non-inflammatory form of competence in place of the classic paradigm of immunological attrition and exhaustion. The foundation of the model was laid in 1990, and sixteen years later it was articulated formally on the basis of a body of evidence centered on T cell cytokines and interventions with cytokine and hormonal mediators. The benefit originally suggested was a reduced risk of autoimmune pathologies consequent to the catabolic release of self-antigens, hence the designation highlighting immune tolerance. Herein, the emergence of the tolerance model is traced from its roots in the recognition that acute malnutrition elicits an endocrine-based systemic adaptive attempt. Thereafter, the growth of the evidence base supporting the model is outlined, and its potential to shed new light on existing information is tested by application to the findings of a published clinical study of acutely malnourished children. Finally, some knowledge gaps pertinent to the model are identified and its potential for growth consonant with evolving perceptions of immunobiology is illustrated.
Collapse
Affiliation(s)
- Bill Woodward
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.M.H.); (J.M.M.)
| | | | | |
Collapse
|
3
|
Herai Y, Yahaba M, Taniguchi T, Murata S, Chiba H, Igari H. Factors Influencing the Indeterminate Results in a T-SPOT.TB test: A Matched Case-control Study. Intern Med 2023; 62:3321-3326. [PMID: 37005270 DOI: 10.2169/internalmedicine.1006-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Objective A T-SPOT.TB can yield indeterminate results under two test observation conditions: a high response to the nil in negative control wells (high nil-control) or a low response to the mitogen in positive control wells (low mitogen-control). The most strongly influential factors for these indeterminate results, however, have yet to be identified. Methods From June 1, 2015, to June 30, 2021, we conducted a 1:1 matched case-control, retrospective study. Patients Patients who underwent a T-SPOT.TB test at Chiba University Hospital. Results The study included 5,956 participants. Indeterminate results were found in 63 participants (1.1%), including high nil-control in 37 and low mitogen-control in 26. Human T-cell leukemia virus type 1 (HTLV-1) positivity was the only influencing factor associated with high nil-control (adjusted odds ratio=98.5, 95% confidence interval: 6.59-1,480). Conclusion Regarding the indeterminate results, all HTLV-1 positive participants had a high nil response and no low mitogen response. It was suspected that abnormally produced interferon γ caused a nonspecific reaction to the negative control well, resulting in a high nil response. Low mitogen-control, conversely, did not appear to have any statistically significant influential factors.
Collapse
Affiliation(s)
- Yoriko Herai
- Division of Infection Control, Chiba University, Japan
| | - Misuzu Yahaba
- Division of Infection Control, Chiba University, Japan
| | | | - Shota Murata
- Division of Laboratory Medicine, Chiba University Hospital, Japan
| | - Hitoshi Chiba
- Division of Infection Control, Chiba University, Japan
| | | |
Collapse
|
4
|
Relation of serum IL-32 levels and gene polymorphism rs45499297 with obesity in Mexican patients: a laboratory and in silico analysis. NUTR HOSP 2022; 39:313-319. [DOI: 10.20960/nh.03804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
|
5
|
Cintron C, Narasimhan PB, Locks L, Babu S, Sinha P, Rajkumari N, Kaipilyawar V, Bhargava A, Maloomian K, Chandrasekaran P, Verma S, Joseph N, Johnson WE, Wanke C, Horsburgh CR, Ellner JJ, Sarkar S, Salgame P, Lakshminarayanan S, Hochberg NS. Tuberculosis-Learning the Impact of Nutrition (TB LION): protocol for an interventional study to decrease TB risk in household contacts. BMC Infect Dis 2021; 21:1058. [PMID: 34641820 PMCID: PMC8506078 DOI: 10.1186/s12879-021-06734-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/23/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Comorbidities such as undernutrition and parasitic infections are widespread in India and other tuberculosis (TB)-endemic countries. This study examines how these conditions as well as food supplementation and parasite treatment might alter immune responses to Mycobacterium tuberculosis (Mtb) infection and risk of progression to TB disease. METHODS This is a 5-year prospective clinical trial at Jawaharlal Institute of Post Graduate Medical Education and Research in Puducherry, Tamil Nadu, India. We aim to enroll 760 household contacts (HHC) of adults with active TB in order to identify 120 who are followed prospectively for 2 years: Thirty QuantiFERON-TB Gold Plus (QFT-Plus) positive HHCs ≥ 18 years of age in four proposed groups: (1) undernourished (body mass index [BMI] < 18.5 kg/m2); (2) participants with a BMI ≥ 18.5 kg/m2 who have a parasitic infection (3) undernourished participants with a parasitic infection and (4) controls-participants with BMI ≥ 18.5 kg/m2 and without parasitic infection. We assess immune response at baseline and after food supplementation (for participants with BMI < 18.5 kg/m2) and parasite treatment (for participants with parasites). Detailed nutritional assessments, anthropometry, and parasite testing through polymerase chain reaction (PCR) and microscopy are performed. In addition, at serial time points, these samples will be further analyzed using flow cytometry and whole blood transcriptomics to elucidate the immune mechanisms involved in disease progression. CONCLUSIONS This study will help determine whether undernutrition and parasite infection are associated with gene signatures that predict risk of TB and whether providing nutritional supplementation and/or treating parasitic infections improves immune response towards this infection. This study transcends individual level care and presents the opportunity to benefit the population at large by analyzing factors that affect disease progression potentially reducing the overall burden of people who progress to TB disease. Trial registration ClinicalTrials.gov; NCT03598842; Registered on July 26, 2018; https://clinicaltrials.gov/ct2/show/NCT03598842.
Collapse
Affiliation(s)
- Chelsie Cintron
- Department of Medicine, Section of Infectious Diseases, Boston Medical Center, Boston, MA, USA
| | - Prakash Babu Narasimhan
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Lindsey Locks
- Department of Health Sciences, Boston University College of Health and Rehabilitation Sciences Sargent College, Boston, MA, USA
| | - Senbagavalli Babu
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Pranay Sinha
- Department of Medicine, Section of Infectious Diseases, Boston Medical Center, Boston, MA, USA
| | - Nonika Rajkumari
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vaishnavi Kaipilyawar
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Anurag Bhargava
- Department of Internal Medicine, Yenepoya Medical College, Mangalore, Karnataka, India
| | | | - Padma Chandrasekaran
- Department of Clinical Research, National Institute for Research in Tuberculosis, Chennai, India
| | - Sheetal Verma
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Noyal Joseph
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - W Evan Johnson
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA
| | - Christine Wanke
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - C Robert Horsburgh
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Jerrold J Ellner
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Sonali Sarkar
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Padmini Salgame
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Subitha Lakshminarayanan
- Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Natasha S Hochberg
- Department of Medicine, Section of Infectious Diseases, Boston Medical Center, Boston, MA, USA.
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
- Department of Medicine, Section of Infectious Diseases, Boston University, School of Medicine, Boston, MA, USA.
| |
Collapse
|
6
|
Leptin Deficiency, Caused by Malnutrition, Makes You Susceptible to SARS-CoV-2 Infection but Could Offer Protection from Severe COVID-19. mSphere 2021; 6:6/3/e00031-21. [PMID: 33980671 PMCID: PMC8125045 DOI: 10.1128/msphere.00031-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In much of the developing world, severe malnutrition is the most prevalent cause of immunodeficiency and affects up to 50% of the population in some impoverished communities. As yet, we do not know how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) will behave in populations with immunodeficiency caused by malnourishment. In much of the developing world, severe malnutrition is the most prevalent cause of immunodeficiency and affects up to 50% of the population in some impoverished communities. As yet, we do not know how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) will behave in populations with immunodeficiency caused by malnourishment. Interestingly, researchers are now speculating that, in some instances, a defective cellular immune system could paradoxically be a protective factor against severe disease in certain patients contracting SARS-CoV and SARS-CoV-2. This could be linked to the absence of T-cell activation. Based on available information presented here, it is plausible that the hyperimmune response, and subsequent cytokine storm often associated with severe coronavirus disease 2019 (COVID-19), could be “counteracted” by the defective immune response seen in individuals with malnutrition-induced leptin deficiency. In this paper, we proposed a theory that although those with malnutrition-linked leptin deficiency are at risk of SARS-CoV-2 infection, they are at lower risk of developing severe COVID-19.
Collapse
|
7
|
Bishop EL, Gudgeon N, Dimeloe S. Control of T Cell Metabolism by Cytokines and Hormones. Front Immunol 2021; 12:653605. [PMID: 33927722 PMCID: PMC8076900 DOI: 10.3389/fimmu.2021.653605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Dynamic, coordinated changes in metabolic pathway activity underpin the protective and inflammatory activity of T cells, through provision of energy and biosynthetic precursors for effector functions, as well as direct effects of metabolic enzymes, intermediates and end-products on signaling pathways and transcriptional mechanisms. Consequently, it has become increasingly clear that the metabolic status of the tissue microenvironment directly influences T cell activity, with changes in nutrient and/or metabolite abundance leading to dysfunctional T cell metabolism and interlinked immune function. Emerging evidence now indicates that additional signals are integrated by T cells to determine their overall metabolic phenotype, including those arising from interaction with cytokines and hormones in their environment. The impact of these on T cell metabolism, the mechanisms involved and the pathological implications are discussed in this review article.
Collapse
Affiliation(s)
| | | | - Sarah Dimeloe
- College of Medical and Dental Sciences, Institute of Immunology and Immunotherapy, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
| |
Collapse
|
8
|
Johnson WE, Odom A, Cintron C, Muthaiah M, Knudsen S, Joseph N, Babu S, Lakshminarayanan S, Jenkins DF, Zhao Y, Nankya E, Horsburgh CR, Roy G, Ellner J, Sarkar S, Salgame P, Hochberg NS. Comparing tuberculosis gene signatures in malnourished individuals using the TBSignatureProfiler. BMC Infect Dis 2021; 21:106. [PMID: 33482742 PMCID: PMC7821401 DOI: 10.1186/s12879-020-05598-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Background Gene expression signatures have been used as biomarkers of tuberculosis (TB) risk and outcomes. Platforms are needed to simplify access to these signatures and determine their validity in the setting of comorbidities. We developed a computational profiling platform of TB signature gene sets and characterized the diagnostic ability of existing signature gene sets to differentiate active TB from LTBI in the setting of malnutrition. Methods We curated 45 existing TB-related signature gene sets and developed our TBSignatureProfiler software toolkit that estimates gene set activity using multiple enrichment methods and allows visualization of single- and multi-pathway results. The TBSignatureProfiler software is available through Bioconductor and on GitHub. For evaluation in malnutrition, we used whole blood gene expression profiling from 23 severely malnourished Indian individuals with TB and 15 severely malnourished household contacts with latent TB infection (LTBI). Severe malnutrition was defined as body mass index (BMI) < 16 kg/m2 in adults and based on weight-for-height Z scores in children < 18 years. Gene expression was measured using RNA-sequencing. Results The comparison and visualization functions from the TBSignatureProfiler showed that TB gene sets performed well in malnourished individuals; 40 gene sets had statistically significant discriminative power for differentiating TB from LTBI, with area under the curve ranging from 0.662–0.989. Three gene sets were not significantly predictive. Conclusion Our TBSignatureProfiler is a highly effective and user-friendly platform for applying and comparing published TB signature gene sets. Using this platform, we found that existing gene sets for TB function effectively in the setting of malnutrition, although differences in gene set applicability exist. RNA-sequencing gene sets should consider comorbidities and potential effects on diagnostic performance. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-020-05598-z.
Collapse
Affiliation(s)
- W Evan Johnson
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA. .,Bioinformatics Program, Boston University, Boston, MA, USA. .,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA.
| | - Aubrey Odom
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | | | | | | | - Noyal Joseph
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Senbagavalli Babu
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | | | - David F Jenkins
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - Yue Zhao
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - Ethel Nankya
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - C Robert Horsburgh
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Gautam Roy
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Jerrold Ellner
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Sonali Sarkar
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Padmini Salgame
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Natasha S Hochberg
- Boston Medical Center, Boston, MA, USA.,Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Section of Infectious Diseases, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
9
|
Zhu C, Wang X, Chen S, Yang X, Sun J, Pan B, Zhang W, Chen X, Huang Y. Efficacy of the Preoperative Albumin-Bilirubin Grade for Predicting Survival and Outcomes of Postoperative Chemotherapy for Advanced Gastric Cancer. Cancer Manag Res 2020; 12:11921-11932. [PMID: 33244269 PMCID: PMC7685381 DOI: 10.2147/cmar.s279782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/06/2020] [Indexed: 01/27/2023] Open
Abstract
Purpose The liver function index can predict the prognosis of hepatocellular carcinoma and many other non-neoplastic diseases. We aimed to determine whether the preoperative albumin–bilirubin (ALBI) grade could predict the prognosis of patients with gastric cancer (GC). Patients and Methods Data of 243 patients with GC who underwent radical resection were collected retrospectively. Patients were divided into the high ALBI (>−2.34) and low ALBI (≤−2.34) grade groups. Overall survival was analyzed between the two groups using the Kaplan–Meier curves. Univariate and multivariate analyses identified the independent factors associated with postoperative complications and overall survival. Results The postoperative complication rates were higher in the high ALBI grade group than in the low ALBI grade group (P=0.005). The high ALBI grade group also had worse overall survival (P<0.001), especially TNM stage II–III patients (stage II, P=0.043; stage III, P<0.001). In the high ALBI grade group, patients with TNM stage III not undergoing chemotherapy had significantly worse survival times (P=0.001). High ALBI grade (P=0.032), Charlson score of 1–2 (P=0.007), and laparotomy surgery (P=0.045) were independent risk factors for postoperative complications. High ALBI grade (P=0.005), age ≥70 years (P=0.002), nutritional risk screening score 2002 score of 5–6 (P=0.019), tumor located in the cardia (P=0.020), diffuse tumor (P<0.001), and TNM stage III (P<0.001) were independent risk factors for overall survival. Conclusion Preoperative ALBI grade could predict postoperative complications and overall survival of patients with GC, especially those with TNM stages II–III. This grading method has the advantages of preoperative availability, simplicity, and objectivity and aids in improving preoperative prognosis prediction and in achieving better outcomes of postoperative chemotherapy.
Collapse
Affiliation(s)
- Ce Zhu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Xiang Wang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Sian Chen
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Xinxin Yang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Jing Sun
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Bujian Pan
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Weiteng Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Xiaodong Chen
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Yingpeng Huang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| |
Collapse
|
10
|
Hortová-Kohoutková M, Lázničková P, Frič J. How immune-cell fate and function are determined by metabolic pathway choice: The bioenergetics underlying the immune response. Bioessays 2020; 43:e2000067. [PMID: 33191545 DOI: 10.1002/bies.202000067] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 12/14/2022]
Abstract
Immune cells are highly dynamic in their response to the tissue environment. Most immune cells rapidly change their metabolic profile to obtain sufficient energy to engage in defensive or homeostatic processes. Such "immunometabolism" is governed through intermediate metabolites, and has a vital role in regulating immune-cell function. The underlying metabolic reactions are shaped by the abundance and accessibility of specific nutrients, as well as the overall metabolic status of the host. Here, we discuss how different immune-cell types gain a sufficient energy supply. We then explain how immune cells perform various functions under challenged conditions and expend energy to sustain homeostasis. Finally, we speculate on how the immune-cell metabolic profile might be modulated in health and disease, by manipulating nutrient availability. By such intervention, the recovery of patient with dysregulated immune system responses might be sped up and the fitness of an individual efficiently restored.
Collapse
Affiliation(s)
| | - Petra Lázničková
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Frič
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| |
Collapse
|
11
|
Rocha-Ramírez LM, Hernández-Ochoa B, Gómez-Manzo S, Marcial-Quino J, Cárdenas-Rodríguez N, Centeno-Leija S, García-Garibay M. Impact of Heat-Killed Lactobacillus casei Strain IMAU60214 on the Immune Function of Macrophages in Malnourished Children. Nutrients 2020; 12:E2303. [PMID: 32751919 PMCID: PMC7468933 DOI: 10.3390/nu12082303] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 12/17/2022] Open
Abstract
Malnutrition is commonly associated with immunological deregulation, increasing the risk of infectious illness and death. The objective of this work was to determine the in vitro effects of heat-killed Lactobacillus casei IMAU60214 on monocyte-derived macrophages (MDMs) from well-nourished healthy children, well-nourished infected children and malnourished infected children, which was evaluated by an oxygen-dependent microbicidal mechanism assay of luminol-increase chemiluminescence and the secretion of tumor necrosis factor (TNF-α), interleukin (IL-1β), IL-6 and IL-10, as well as phagocytosis using zymosan and as its antibacterial activity against Salmonella typhimurium, Escherichia coli and Staphylococcus aureus. We found that reactive oxygen species (ROS), secretion cytokines (TNFα, IL-1β, IL-6 and IL-10 levels), phagocytosis and bactericidal capacity increased in all groups after pre-treatment with heat-killed L. casei IMAU60214 at a ratio of 500:1 (bacteria:MDM) over 24 h compared with MDM cells without pre-treatment. The results could indicate that heat-killed L. casei IMAU60214 is a potential candidate for regulating the immune function of macrophages.
Collapse
Affiliation(s)
- Luz María Rocha-Ramírez
- Unidad de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Secretaría de Salud Dr. Márquez No. 162, Col Doctores, Delegación Cuauhtémoc, Ciudad de México 06720, Mexico
| | - Beatriz Hernández-Ochoa
- Laboratorio de Investigación en Inmunoquímica, Hospital Infantil de México Federico Gómez, Secretaría de Salud. Dr. Márquez No. 162, Col Doctores, Delegación Cuauhtémoc, Ciudad de México 06720, Mexico;
| | - Saúl Gómez-Manzo
- Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaria de Salud, Ciudad de México 04530, Mexico;
| | - Jaime Marcial-Quino
- Consejo Nacional de Ciencia y Tecnología (CONACYT), Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, Mexico;
| | - Noemí Cárdenas-Rodríguez
- Laboratorio de Neurociencias, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, Mexico;
| | - Sara Centeno-Leija
- Consejo Nacional Ciencia y Tecnologia (CONACYT), Laboratorio de Agrobiotecnología, Tecnoparque CLQ, Universidad de Colima, Carretera Los Limones-Loma de Juárez, Colima 28629, Mexico;
| | - Mariano García-Garibay
- Departamento de Ciencias de la Alimentación, Unidad Lerma, Departamento de Biotecnología, Unidad Iztapalapa, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco No. 186. Col Vicentina, Ciudad de México 09340, Mexico;
| |
Collapse
|
12
|
Ahnfeldt AM, Bæk O, Hui Y, Nielsen CH, Obelitz-Ryom K, Busk-Anderson T, Ruge A, Holst JJ, Rudloff S, Burrin D, Nguyen DN, Nielsen DS, Zachariassen G, Bering SB, Thymann T, Sangild PT. Nutrient Restriction has Limited Short-Term Effects on Gut, Immunity, and Brain Development in Preterm Pigs. J Nutr 2020; 150:1196-1207. [PMID: 32069355 DOI: 10.1093/jn/nxaa030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 09/30/2019] [Accepted: 01/30/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Extrauterine growth restriction (EUGR) in preterm infants is associated with higher morbidity and impaired neurodevelopment. Early nutrition support may prevent EUGR in preterm infants, but it is not known if this improves organ development and brain function in the short and long term. OBJECTIVE Using pigs as models for infants, we hypothesized that diet-induced EUGR impairs gut, immunity, and brain development in preterm neonates during the first weeks after birth. METHODS Forty-four preterm caesarean-delivered pigs (Danish Landrace × Large White × Duroc, birth weight 975 ± 235 g, male:female ratio 23:21) from 2 sows were fed increasing volumes [32-180 mL/(kg·d)] of dilute bovine milk (EUGR group) or the same diet fortified with powdered bovine colostrum for 19 d (CONT group, 50-100% higher protein and energy intake than the EUGR group). RESULTS The EUGR pigs showed reduced body growth (-39%, P < 0.01), lower plasma albumin, phosphate, and creatine kinase concentrations (-35 to 14%, P < 0.05), increased cortisol and free iron concentrations (+130 to 700%, P < 0.05), and reduced relative weights of the intestine, liver, and spleen (-38 to 19%, all P < 0.05). The effects of EUGR on gut structure, function, microbiota, and systemic immunity were marginal, although EUGR temporarily increased type 1 helper T cell (Th1) activity (e.g. more blood T cells and higher Th1-related cytokine concentrations on day 8) and reduced colon nutrient fermentation (lower SCFA concentration; -45%, P < 0.01). Further, EUGR pigs showed increased relative brain weights (+19%, P < 0.01), however, memory and learning, as tested in a spatial T-maze, were not affected. CONCLUSION Most of the measured organ growth, and digestive, immune, and brain functions showed limited effects of diet-induced EUGR in preterm pigs during the first weeks after birth. Likewise, preterm infants may show remarkable physiological adaptation to deficient nutrient supply during the first weeks of life although early life malnutrition may exert negative consequences later.
Collapse
Affiliation(s)
- Agnethe May Ahnfeldt
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ole Bæk
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Yan Hui
- Department of Food Science, Food Microbiology, University of Copenhagen, Copenhagen, Denmark
| | | | - Karina Obelitz-Ryom
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tilla Busk-Anderson
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne Ruge
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Juul Holst
- Department of Biomedical Sciences, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Silvia Rudloff
- Institute of Nutritional Science, Justus-Liebig-University Giessen, Giessen, Germany
| | - Douglas Burrin
- Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA
| | - Duc Ninh Nguyen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dennis Sandris Nielsen
- Department of Food Science, Food Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Gitte Zachariassen
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Stine Brandt Bering
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Thymann
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Per Torp Sangild
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| |
Collapse
|
13
|
Sinha P, Davis J, Saag L, Wanke C, Salgame P, Mesick J, Horsburgh CR, Hochberg NS. Undernutrition and Tuberculosis: Public Health Implications. J Infect Dis 2020; 219:1356-1363. [PMID: 30476125 DOI: 10.1093/infdis/jiy675] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 11/20/2018] [Indexed: 12/30/2022] Open
Abstract
Almost 800 million people are chronically undernourished worldwide, of whom 98% are in low- and middle-income countries where tuberculosis is endemic. In many tuberculosis-endemic countries, undernutrition is a driver of tuberculosis incidence and associated with a high population attributable fraction of tuberculosis and poor treatment outcomes. Data suggest that undernutrition impairs innate and adaptive immune responses needed to control Mycobacterium tuberculosis infection and may affect responses to live vaccines, such as BCG. Given its impact on tuberculosis, addressing undernutrition will be a vital component of the World Health Organization End TB strategy. This narrative review describes the effect of undernutrition on the immune response, vaccine response, and tuberculosis incidence, severity, and treatment outcomes.
Collapse
Affiliation(s)
- Pranay Sinha
- Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Massachusetts
| | - Juliana Davis
- Department of Epidemiology, Boston University School of Public Health, Massachusetts
| | - Lauren Saag
- Division of Epidemiology, Vanderbilt University, Nashville, Tennessee
| | | | - Padmini Salgame
- Centre for Emerging Pathogens, Department of Medicine, Rutgers-New Jersey Medical School, Newark
| | - Jackson Mesick
- Department of Epidemiology, Boston University School of Public Health, Massachusetts.,Department of Global Health, Boston University School of Public Health, Massachusetts
| | - C Robert Horsburgh
- Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Massachusetts.,Department of Epidemiology, Boston University School of Public Health, Massachusetts.,Department of Global Health, Boston University School of Public Health, Massachusetts
| | - Natasha S Hochberg
- Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Massachusetts.,Department of Epidemiology, Boston University School of Public Health, Massachusetts
| |
Collapse
|
14
|
Gibson D, Mehler PS. Anorexia Nervosa and the Immune System-A Narrative Review. J Clin Med 2019; 8:jcm8111915. [PMID: 31717370 PMCID: PMC6912362 DOI: 10.3390/jcm8111915] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/24/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022] Open
Abstract
The pathogenesis of an increasing number of chronic diseases is being attributed to effects of the immune system. However, its role in the development and maintenance of anorexia nervosa is seemingly under-appreciated. Yet, in examining the available research on the immune system and genetic studies in anorexia nervosa, one becomes increasingly suspicious of the immune system’s potential role in the pathophysiology of anorexia nervosa. Specifically, research is suggestive of increased levels of various pro-inflammatory cytokines as well as the spontaneous production of tumor necrosis factor in anorexia nervosa; genetic studies further support a dysregulated immune system in this disorder. Potential contributors to this dysregulated immune system are discussed including increased oxidative stress, chronic physiological/psychological stress, changes in the intestinal microbiota, and an abnormal bone marrow microenvironment, all of which are present in anorexia nervosa.
Collapse
Affiliation(s)
- Dennis Gibson
- Assistant Medical Director, ACUTE Center for Eating Disorders @ Denver Health; Assistant Professor of Medicine, University of Colorado School of Medicine; 777 Bannock St., Denver, CO 80204, USA
- Correspondence: ; Tel.: +303-602-5067; Fax: +303-602-3811
| | - Philip S Mehler
- President, Eating Recovery Center; Founder and Executive Medical Director, ACUTE Center for Eating Disorders @ Denver Health; Glassman Professor of Medicine, University of Colorado School of Medicine; 7351 E Lowry Blvd, Suite 200, Denver, CO 80230, USA;
| |
Collapse
|
15
|
Hao X, Li D, Zhang N. Geriatric Nutritional Risk Index as a predictor for mortality: a meta-analysis of observational studies. Nutr Res 2019; 71:8-20. [DOI: 10.1016/j.nutres.2019.07.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/22/2019] [Accepted: 07/26/2019] [Indexed: 11/16/2022]
|
16
|
Islam S, Sarmin M, Ahmed T, Afroze F, Chisti MJ. Factors associated with cerebral edema in children under 5 years of age admitted in an intensive care unit and their outcome. SAGE Open Med 2019; 7:2050312119874622. [PMID: 31523426 PMCID: PMC6727091 DOI: 10.1177/2050312119874622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/13/2019] [Indexed: 11/21/2022] Open
Abstract
Objective: We aimed to evaluate risk factors and outcome of cerebral edema in children with diarrhea. Methods: In this retrospective chart analysis, data of all diarrheal children under 5 years of age having convulsion and admitted in intensive care unit were retrieved from an electronic medical record system of Dhaka Hospital of International Centre for Diarrhoeal Disease Research, Bangladesh, from 1st January 2011 to 31st December 2016. Comparison of clinical and laboratory characteristics was made between children with (cases = 22) and without cerebral edema (controls = 66). Results: Cases more often had a fatal outcome than controls (36% vs 8%, p = 0.003). In logistic regression analysis, after adjusting for potential confounders, the cases were independently associated with respiratory distress (odds ratio = 5.5, confidence interval = 1.55–19.62, p = 0.008), severe sepsis (odds ratio = 4.6, confidence interval = 1.24–16.77, p = 0.022), and severe malnutrition (odds ratio = 0.16, confidence interval = 0.04–0.74, p = 0.019). A rapid drop (>0.5 mmol/L per hour) in serum sodium did not have any impact on developing cerebral edema (p = 0.090). Conclusion: Identification of simple clinical predictors may help in the early treatment of cerebral edema that may further help in reducing deaths in such children especially in resource-poor settings. However, further research with prospective design is needed to consolidate our observation.
Collapse
Affiliation(s)
- Shamin Islam
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Monira Sarmin
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Farzana Afroze
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mohammod Jobayer Chisti
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| |
Collapse
|
17
|
Caroleo M, Carbone EA, Greco M, Corigliano DM, Arcidiacono B, Fazia G, Rania M, Aloi M, Gallelli L, Segura-Garcia C, Foti DP, Brunetti A. Brain-Behavior-Immune Interaction: Serum Cytokines and Growth Factors in Patients with Eating Disorders at Extremes of the Body Mass Index (BMI) Spectrum. Nutrients 2019; 11:E1995. [PMID: 31450770 PMCID: PMC6770139 DOI: 10.3390/nu11091995] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 12/14/2022] Open
Abstract
Alterations of the immune system are known in eating disorders (EDs), however the importance of cytokine balance in this context has not been clarified. We compared cytokines and growth factors at opposite ends of BMI ranges, in 90 patients classified in relation to BMI, depressive and EDs comorbidities. Serum concentrations of interleukin (IL)-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), monocyte chemoattractant protein-1 (MCP-1), vascular endothelial growth factor (VEGF), and epidermal growth factor (EGF) were determined by a biochip analyzer (Randox Labs). Differences were calculated through ANOVA. Possible predictors of higher cytokine levels were evaluated through regression analysis. IL-1α, IL-10, EGF, and IFN-γ were altered individuals with anorexia nervosa (AN) and binge eating disorder (BED). Night-eating was associated with IL-8 and EGF levels, IL-10 concentrations with post-dinner eating and negatively with sweet-eating, long fasting with higher IFN-γ levels. IL-2 increase was not linked to EDs, but to the interaction of depression and BMI. Altogether, for the first time, IL-1α, IL-10, EGF, and IFN-γ were shown to differ between AN and HCs, and between AN and individuals with obesity with or without BED. Only IL-2 was influenced by depression. Dysfunctional eating behaviors predicted abnormal concentrations of IL-10, EGF, IL-8 and IFN-γ.
Collapse
Affiliation(s)
- Mariarita Caroleo
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Elvira Anna Carbone
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Marta Greco
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | | | - Biagio Arcidiacono
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Gilda Fazia
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Marianna Rania
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Matteo Aloi
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Luca Gallelli
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Cristina Segura-Garcia
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy.
| | - Daniela Patrizia Foti
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Antonio Brunetti
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| |
Collapse
|
18
|
Kuroda N, Fujimoto A, Okanishi T, Sato K, Itamura S, Baba S, Nishimura M, Ichikawa N, Enoki H. Low Body Mass Index and Low Intelligence Quotient Are Infection Risk Factors in Vagus Nerve Stimulation. World Neurosurg 2019; 130:e839-e845. [PMID: 31295613 DOI: 10.1016/j.wneu.2019.06.235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Risk factors for infection after vagus nerve stimulation (VNS) device implantation represent an important issue but remain unclear. We hypothesized that specific risk factors for infection would be associated with VNS device implantation. This study reviewed patients with epilepsy who underwent VNS device implantation and undertook a statistical analysis of risk factors for surgical site infection (SSI). METHODS We reviewed all medical records for patients who underwent VNS therapy in our facility between August 2011 and May 2018. Age, sex, height, body weight, body mass index (BMI), intelligence quotient (IQ), surgical incision opening time, blood loss, epilepsy classification, activities of daily living, and generator replacement were statistically compared between cases with and without SSI. RESULTS We performed 208 VNS device implantation surgeries at our facility during the study period. Among these, 150 patients underwent initial implantation, 56 patients underwent first generator replacement, and 2 patients underwent second replacement. Six patients (2.7%) with initial implantation and 3 patients (5.4%) with first replacement showed SSI. Low BMI was a risk factor for infection at initial implantation (P < 0.0012) using a BMI within 1.78 kg/m2 of the cutoff for being underweight (100% sensitivity, 25% specificity). Low IQ (P = 0.0015) was also a risk factor for SSI. CONCLUSIONS This study identified low BMI and low IQ at initial implantation as risk factors for infection.
Collapse
Affiliation(s)
- Naoto Kuroda
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Ayataka Fujimoto
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan.
| | - Tohru Okanishi
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Keishiro Sato
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Shinji Itamura
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Shimpei Baba
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Mitsuyo Nishimura
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Naoki Ichikawa
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Hideo Enoki
- Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| |
Collapse
|
19
|
Iron Supplementation Therapy, A Friend and Foe of Mycobacterial Infections? Pharmaceuticals (Basel) 2019; 12:ph12020075. [PMID: 31108902 PMCID: PMC6630247 DOI: 10.3390/ph12020075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 12/21/2022] Open
Abstract
Iron is an essential element that is required for oxygen transfer, redox, and metabolic activities in mammals and bacteria. Mycobacteria, some of the most prevalent infectious agents in the world, require iron as growth factor. Mycobacterial-infected hosts set up a series of defense mechanisms, including systemic iron restriction and cellular iron distribution, whereas mycobacteria have developed sophisticated strategies to acquire iron from their hosts and to protect themselves from iron’s harmful effects. Therefore, it is assumed that host iron and iron-binding proteins, and natural or synthetic chelators would be keys targets to inhibit mycobacterial proliferation and may have a therapeutic potential. Beyond this hypothesis, recent evidence indicates a host protective effect of iron against mycobacterial infections likely through promoting remodeled immune response. In this review, we discuss experimental procedures and clinical observations that highlight the role of the immune response against mycobacteria under various iron availability conditions. In addition, we discuss the clinical relevance of our knowledge regarding host susceptibility to mycobacteria in the context of iron availability and suggest future directions for research on the relationship between host iron and the immune response and the use of iron as a therapeutic agent.
Collapse
|
20
|
Gavia-García G, Rosas-Trejo MDLÁ, García-Mendoza E, Toledo-Pérez R, Königsberg M, Nájera-Medina O, Luna-López A, González-Torres MC. t-BHQ Protects Against Oxidative Damage and Maintains the Antioxidant Response in Malnourished Rats. Dose Response 2018; 16:1559325818796304. [PMID: 30263018 PMCID: PMC6156215 DOI: 10.1177/1559325818796304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 12/31/2022] Open
Abstract
Objective: Tert-butylhydroquinone (t-BHQ) protective effect against oxidative damage in thymus from malnourished pops-rats was evaluated. Methods: Malnutrition in pops-rats was induced during the lactation period and first-, second-, and third-degree malnourished rats were studied (MN1, MN2, and MN3). To determine t-BHQ protective effect, lipid peroxidation (LPx) was assessed, as well as the carbonyl content. The reduced glutathione and glutathione disulfide content were determined and antioxidant enzyme activities were measured. Results: Oxidative protein damage, LPx, and Nuclear Factor-κB (NF-κB) content, increased in the MN2 and MN3 compared to well-nourished rats, associated with lower protein content and antioxidant activity of superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase. Tert-butylhydroquinone treatment induced a protective effect against lipids and proteins oxidative damage, as well as decrease in NF-κB in MN rats and restored the antioxidant mechanisms, mostly GPx and SOD. No differences were found between male and female animals. Conclusions: Results show that higher body weight deficit leads to increased oxidative damage and probably inflammation, attributable to alterations in antioxidant mechanisms. These effects were reversed by the t-BHQ-treatment, which restores the antioxidant response. Our findings suggest that t-BHQ could be an interesting pharmacological intervention, but it needs to be studied further.
Collapse
Affiliation(s)
- Graciela Gavia-García
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico.,Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - María de Los Ángeles Rosas-Trejo
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico.,Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Eduardo García-Mendoza
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Rafael Toledo-Pérez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico.,Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Mina Königsberg
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, CDMX, Mexico
| | - Oralia Nájera-Medina
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, CDMX, Mexico
| | - Armando Luna-López
- Departamento de Investigación Básica, Instituto Nacional de Geriatría, CDMX, Mexico
| | | |
Collapse
|
21
|
Sun X, Wan S, Zhang L, Zhang Y, Liu X. Prevalence and influencing factors of the high nil-control spot count in T-SPOT.TB: A matched case-control study. Clin Chim Acta 2018; 487:96-100. [PMID: 30201370 DOI: 10.1016/j.cca.2018.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/16/2018] [Accepted: 09/06/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND T-SPOT.TB may yield indeterminate results, including high nil responses and insufficient mitogen responses. We explored the incidence and risk factors of high nil responses. METHODS A 1:1 matched case-control study of patients who underwent T-SPOT.TB tests in Peking Union Medical College Hospital from Jan 1, 2015 to Apr 30, 2017 was conducted. High nil responses were defined as >10 spots in negative control wells. Cases and controls were matched based on when the tests were performed. Demographic, clinical and laboratory data were obtained from the Medical Record System. RESULTS A total of 644 out of 36,316 (1.76%, 95% CI: 1.63%-1.90%) patients presented with high nil responses (280 cases and 280 controls were enrolled). Multivariate analysis revealed that male (OR = 1.882, 95% CI: 1.222-2.899), Behcet's disease (OR = 7.764, 95% CI: 1.714-35.167), heavy use of corticosteroids within a month (OR = 0.357, 95% CI: 0.138-0.921, for >1000 mg group) and hypoalbuminemia (OR = 0.385, 95% CI: 0.241-0.615) are significantly associated with high nil responses. CONCLUSIONS High nil responses in T-SPOT.TB assays are quite rare. Male gender and Behcet's disease are suggested as independent risk factors, while recent excessive use of corticosteroids and hypoalbuminemia seem to be independent protective factors.
Collapse
Affiliation(s)
- Xiaochuan Sun
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shijun Wan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Lifan Zhang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Clinical Epidemiology Unit, International Clinical Epidemiology Network (INCLEN), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Centre for Tuberculosis Research, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yueqiu Zhang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiaoqing Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Clinical Epidemiology Unit, International Clinical Epidemiology Network (INCLEN), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Centre for Tuberculosis Research, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| |
Collapse
|
22
|
Muenchhoff M, Healy M, Singh R, Roider J, Groll A, Kindra C, Sibaya T, Moonsamy A, McGregor C, Phan MQ, Palma A, Kloverpris H, Leslie A, Bobat R, LaRussa P, Ndung'u T, Goulder P, Sobieszczyk ME, Archary M. Malnutrition in HIV-Infected Children Is an Indicator of Severe Disease with an Impaired Response to Antiretroviral Therapy. AIDS Res Hum Retroviruses 2018; 34:46-55. [PMID: 28670966 PMCID: PMC5771534 DOI: 10.1089/aid.2016.0261] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
This observational study aimed to describe immunopathogenesis and treatment outcomes in children with and without severe acute malnutrition (SAM) and HIV-infection. We studied markers of microbial translocation (16sDNA), intestinal damage (iFABP), monocyte activation (sCD14), T-cell activation (CD38, HLA-DR) and immune exhaustion (PD1) in 32 HIV-infected children with and 41 HIV-infected children without SAM prior to initiation of antiretroviral therapy (ART) and cross-sectionally compared these children to 15 HIV-uninfected children with and 19 HIV-uninfected children without SAM. We then prospectively measured these markers and correlated them to treatment outcomes in the HIV-infected children at 48 weeks following initiation of ART. Plasma levels of 16sDNA, iFABP and sCD14 were measured by quantitative real time PCR, ELISA and Luminex, respectively. T cell phenotype markers were measured by flow cytometry. Multiple regression analysis was performed using generalized linear models (GLMs) and the least absolute shrinkage and selection operator (LASSO) approach for variable selection. Microbial translocation, T cell activation and exhaustion were increased in HIV-uninfected children with SAM compared to HIV-uninfected children without SAM. In HIV-infected children microbial translocation, immune activation, and exhaustion was strongly increased but did not differ by SAM-status. SAM was associated with increased mortality rates early after ART initiation. Malnutrition, age, microbial translocation, monocyte, and CD8 T cell activation were independently associated with decreased rates of CD4% immune recovery after 48 weeks of ART. SAM is associated with increased microbial translocation, immune activation, and immune exhaustion in HIV-uninfected children and with worse prognosis and impaired immune recovery in HIV-infected children on ART.
Collapse
Affiliation(s)
- Maximilian Muenchhoff
- Department of Paediatrics, University of Oxford, Peter Medawar Building for Pathogen Research, Oxford, United Kingdom
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Department of Virology, Max von Pettenkofer-Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich, Germany
| | - Michael Healy
- Division of Infectious Diseases, Department of Medicine, Columbia University, New York, New York
| | - Ravesh Singh
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Julia Roider
- Department of Paediatrics, University of Oxford, Peter Medawar Building for Pathogen Research, Oxford, United Kingdom
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Andreas Groll
- Department of Mathematics, Ludwig-Maximilians-University of Munich, Munich, Germany
| | | | | | - Angeline Moonsamy
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Callum McGregor
- Department of Paediatrics, University of Oxford, Peter Medawar Building for Pathogen Research, Oxford, United Kingdom
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Michelle Q. Phan
- Division of Infectious Diseases, Department of Medicine, Columbia University, New York, New York
| | - Alejandro Palma
- Division of Infectious Diseases, Department of Medicine, Columbia University, New York, New York
| | - Henrik Kloverpris
- KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Alasdair Leslie
- KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts
| | - Raziya Bobat
- King Edward VIII Hospital, Durban, South Africa
- Department of Paediatrics and Child Health, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Philip LaRussa
- Division of Infectious Diseases, Department of Pediatrics, Columbia University, New York, New York
| | - Thumbi Ndung'u
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts
- Max Planck Institute for Infection Biology, Berlin, Germany
| | - Philip Goulder
- Department of Paediatrics, University of Oxford, Peter Medawar Building for Pathogen Research, Oxford, United Kingdom
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Department of Paediatric Infectious Diseases, Great Ormond St. Hospital for Children, London, United Kingdom
| | - Magdalena E. Sobieszczyk
- Division of Infectious Diseases, Department of Medicine, Columbia University, New York, New York
| | - Mohendran Archary
- King Edward VIII Hospital, Durban, South Africa
- Department of Paediatrics and Child Health, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| |
Collapse
|
23
|
Abstract
Malnutrition contributes significantly to death and illness worldwide and especially to the deaths of children younger than 5 years. The relation between intestinal changes in malnutrition and morbidity and mortality has not been well characterized; however, recent research indicates that the functional and morphologic changes of the intestine secondary to malnutrition itself contribute significantly to these negative clinical outcomes and may be potent targets of intervention. The aim of this review was to summarize current knowledge of experimental and clinically observed changes in the intestine from malnutrition preclinical models and human studies. Limited clinical studies have shown villous blunting, intestinal inflammation, and changes in the intestinal microbiome of malnourished children. In addition to these findings, experimental data using various animal models of malnutrition have found evidence of increased intestinal permeability, upregulated intestinal inflammation, and loss of goblet cells. More mechanistic studies are urgently needed to improve our understanding of malnutrition-related intestinal dysfunction and to identify potential novel targets for intervention.
Collapse
|
24
|
Chandrasekaran P, Saravanan N, Bethunaickan R, Tripathy S. Malnutrition: Modulator of Immune Responses in Tuberculosis. Front Immunol 2017; 8:1316. [PMID: 29093710 PMCID: PMC5651251 DOI: 10.3389/fimmu.2017.01316] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 09/29/2017] [Indexed: 11/13/2022] Open
Abstract
Nutrition plays a major role in the management of both acute and chronic diseases, in terms of body’s response to the pathogenic organism. An array of nutrients like macro- and micro-nutrients, vitamins, etc., are associated with boosting the host’s immune responses against intracellular pathogens including mycobacterium tuberculosis (M.tb). These nutrients have an immunomodulatory effects in controlling the infection and inflammation process and nutritional deficiency of any form, i.e., malnutrition may lead to nutritionally acquired immunodeficiency syndrome, which greatly increases an individual’s susceptibility to progression of infection to disease. This narrative review looks at the various mechanisms by which nutrition or its deficiency leads to impaired cell mediated and humoral immune responses, which in turn affects the ability of an individual to fight M.tb infection or disease. There is very little evidence in the literature that any specific food on its own or a specific quantity can alter the course of TB disease or be effective in the treatment of malnutrition. Further clinical trials or studies will be needed to recommend and to better understand the link between malnutrition, tuberculosis, and impaired immunity.
Collapse
Affiliation(s)
| | - Natarajan Saravanan
- Department of Biochemistry and Clinical Pharmacology, National Institute for Research in Tuberculosis, Chennai, India
| | | | | |
Collapse
|
25
|
Santos EW, Oliveira DC, Silva GB, Tsujita M, Beltran JO, Hastreiter A, Fock RA, Borelli P. Hematological alterations in protein malnutrition. Nutr Rev 2017; 75:909-919. [DOI: 10.1093/nutrit/nux041] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
26
|
Baâdoudi F, Trescher A, Duijster D, Maskrey N, Gabel F, van der Heijden G, Listl S, Egberts B, Christensen LB, Douglas G, Eaton K, Gavin G, Walker J, Nagy G, O’Hanlon K, Taylor A, Whelton H, Woods N. A Consensus-Based Set of Measures for Oral Health Care. J Dent Res 2017; 96:881-887. [DOI: 10.1177/0022034517702331] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Increasingly more responsive and accountable health care systems are demanded, which is characterized by transparency and explicit demonstration of competence by health care providers and the systems in which they work. This study aimed to establish measures of oral health for transparent and explicit reporting of routine data to facilitate more patient-centered and prevention-oriented oral health care. To accomplish this, an intermediate objective was to develop a comprehensive list of topics that a range of stakeholders would perceive as valid, important, and relevant for describing oral health and oral health care. A 4-stage approach was used to develop the list of topics: 1) scoping of literature and its appraisal, 2) a meeting of experts, 3) a 2-stage Delphi process (online), and 4) a World Café discussion. The aim was to create consensus through structured conversations via a range of stakeholders (general dental practitioners, patients, insurers, and policy makers) from the Netherlands, Germany, the United Kingdom, Ireland, Hungary, and Denmark. The study was part of the ADVOCATE project, and it resulted in a list of 48 topics grouped into 6 clusters: 1) access to dental care, 2) symptoms and diagnosis, 3) health behaviors, 4) oral treatments, 5) oral prevention, and 6) patient perception. All topics can be measured, as they all have a data source with defined numerators and denominators. This study is the first to establish a comprehensive and multiple-stakeholder consented topic list designed for guiding the implementation of transparent and explicit measurement of routine data of oral health and oral health care. Successful measurement within oral health care systems is essential to facilitate learning from variation in practice and outcomes within and among systems, and it potentiates improvement toward more patient-centered and prevention-oriented oral health care.
Collapse
Affiliation(s)
- F. Baâdoudi
- Department of Social Dentistry, Academic
Centre for Dentistry Amsterdam, Vrije Universiteit University, and University of Amsterdam,
Amsterdam, the Netherlands
| | - A. Trescher
- Department of Conservative Dentistry,
Translational Health Economics Group, Heidelberg University, Heidelberg, Germany
| | - D. Duijster
- Department of Social Dentistry, Academic
Centre for Dentistry Amsterdam, Vrije Universiteit University, and University of Amsterdam,
Amsterdam, the Netherlands
| | - N. Maskrey
- Department of Social Dentistry, Academic
Centre for Dentistry Amsterdam, Vrije Universiteit University, and University of Amsterdam,
Amsterdam, the Netherlands
- School of Pharmacy, Keele University,
Newcastle under Lyme, UK
| | - F. Gabel
- Department of Conservative Dentistry,
Translational Health Economics Group, Heidelberg University, Heidelberg, Germany
| | - G.J.M.G. van der Heijden
- Department of Social Dentistry, Academic
Centre for Dentistry Amsterdam, Vrije Universiteit University, and University of Amsterdam,
Amsterdam, the Netherlands
| | - S. Listl
- Department of Conservative Dentistry,
Translational Health Economics Group, Heidelberg University, Heidelberg, Germany
- Department of Quality and Safety of Oral
Healthcare, Radboud University, Radboud UMC, Nijmegen, the Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Abstract
Human coronavirus NL63 (HCoV-NL63) primarily infects the upper respiratory tract. However, it may cause severe lower respiratory tract infection, and the clinical course may be severe in immunocompromised patients. To our knowledge, child death due to HCoV-NL63 has not been reported. We present a fatal lower respiratory tract disease associated with HCoV-NL63 in a 7-month-old malnourished infant.
Collapse
|
28
|
Cohen S, Danzaki K, MacIver NJ. Nutritional effects on T-cell immunometabolism. Eur J Immunol 2017; 47:225-235. [PMID: 28054344 DOI: 10.1002/eji.201646423] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/23/2016] [Accepted: 01/02/2017] [Indexed: 12/14/2022]
Abstract
T cells are highly influenced by nutrient uptake from their environment, and changes in overall nutritional status, such as malnutrition or obesity, can result in altered T-cell metabolism and behavior. In states of severe malnutrition or starvation, T-cell survival, proliferation, and inflammatory cytokine production are all decreased, as is T-cell glucose uptake and metabolism. The altered T-cell function and metabolism seen in malnutrition is associated with altered adipokine levels, most particularly decreased leptin. Circulating leptin levels are low in malnutrition, and leptin has been shown to be a key link between nutrition and immunity. The current view is that leptin signaling is required to upregulate activated T-cell glucose metabolism and thereby fuel T-cell activation. In the setting of obesity, T cells have been found to have a key role in promoting the recruitment of inflammatory macrophages to adipose depots along with the production of inflammatory cytokines that promote the development of insulin resistance leading to diabetes. Deletion of T cells, key T-cell transcription factors, or pro-inflammatory T-cell cytokines prevents insulin resistance in obesity and underscores the importance of T cells in obesity-associated inflammation and metabolic disease. Altogether, T cells have a critical role in nutritional immunometabolism.
Collapse
Affiliation(s)
- Sivan Cohen
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, USA
| | - Keiko Danzaki
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Nancie J MacIver
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, USA
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| |
Collapse
|
29
|
Hillyer L, Dao B, Niemiec P, Lee S, Doidge M, Bemben I, Neyestani T, Woodward B. Elevated Bioactivity of the Tolerogenic Cytokines, Interleukin-10 and Transforming Growth Factor-β, in the Blood of Acutely Malnourished Weanling Mice. Exp Biol Med (Maywood) 2016; 231:1439-47. [PMID: 16946413 DOI: 10.1177/153537020623100818] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The main objective of this investigation was to determine the influence of acute deficits of protein and energy on the blood levels of interleukin-10 (IL-10) and transforming growth factor-β (TGF-β), physiologically the main anti-inflammatory and tolerogenic cytokines. In four 14-day experiments, male and female C57BL/6J mice, initially 19 days old, consumed a complete purified diet either ad libitum or in restricted daily quantities, or had free access to an isocaloric purified low-protein diet. A zero-time control group (19 days old) was included. In the first two experiments, serum IL-10 levels were assessed by sandwich enzyme-linked immunosorbent assay (ELISA) and bioassay. The mean serum IL-10 bioactivities were higher (P ≤ 0.05) in both malnourished groups (low-protein and restricted intake: 15.8 and 12.2 ng/ml, respectively) than in the zero-time and age-matched control groups (6.3 and 7.3 ng/ml, respectively), whereas serum IL-10 immunoactivity was high only in the restricted intake group (e.g., second experiment: 17.0 pg/ml vs. 5.4, 3.7, and 3.1 pg/ml in the zero-time control, age-matched control and low-protein group, respectively). The third and fourth experiments centered on plasma TGF-β immunoactivity (sandwich ELISA) and bioactivity, respectively. The ELISA revealed a high mean plasma TGF-β1 level (P < 0.05) in the low-protein group only, but TGF-β bioactivity (β1 isoform, although 15% β2 in the restricted intake group) was high in both malnourished groups (8.7 and 9.3 ng/ml in the low-protein and restricted groups, respectively) relative to the age-matched control group (0.5 ng/ml). Thus, metabolically distinct weanling systems mimicking marasmus and incipient kwashiorkor both exhibit a blood cytokine profile that points to a tolerogenic microenvironment within immune response compartments. A model emerges in which malnutrition-associated immune competence, at least in advanced weight loss, centers on cytokine-mediated peripheral tolerance that reduces the risk of catabolically induced autoimmune disease, but this is at the cost of attenuated responsiveness to infectious agents.
Collapse
Affiliation(s)
- Lyn Hillyer
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON Canada N1G 2W1
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Attia S, Versloot CJ, Voskuijl W, van Vliet SJ, Di Giovanni V, Zhang L, Richardson S, Bourdon C, Netea MG, Berkley JA, van Rheenen PF, Bandsma RH. Mortality in children with complicated severe acute malnutrition is related to intestinal and systemic inflammation: an observational cohort study. Am J Clin Nutr 2016; 104:1441-1449. [PMID: 27655441 PMCID: PMC5081715 DOI: 10.3945/ajcn.116.130518] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 08/24/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Diarrhea affects a large proportion of children with severe acute malnutrition (SAM). However, its etiology and clinical consequences remain unclear. OBJECTIVE We investigated diarrhea, enteropathogens, and systemic and intestinal inflammation for their interrelation and their associations with mortality in children with SAM. DESIGN Intestinal pathogens (n = 15), cytokines (n = 29), fecal calprotectin, and the short-chain fatty acids (SCFAs) butyrate and propionate were determined in children aged 6-59 mo (n = 79) hospitalized in Malawi for complicated SAM. The relation between variables, diarrhea, and death was assessed with partial least squares (PLS) path modeling. RESULTS Fatal subjects (n = 14; 18%) were younger (mean ± SD age: 17 ± 11 compared with 25 ± 11 mo; P = 0.01) with higher prevalence of diarrhea (46% compared with 18%, P = 0.03). Intestinal pathogens Shigella (36%), Giardia (33%), and Campylobacter (30%) predominated, but their presence was not associated with death or diarrhea. Calprotectin was significantly higher in children who died [median (IQR): 1360 mg/kg feces (2443-535 mg/kg feces) compared with 698 mg/kg feces (1438-244 mg/kg feces), P = 0.03]. Butyrate [median (IQR): 31 ng/mL (112-22 ng/mL) compared with 2036 ng/mL (5800-149 ng/mL), P = 0.02] and propionate [median (IQR): 167 ng/mL (831-131 ng/mL) compared with 3174 ng/mL (5819-357 ng/mL), P = 0.04] were lower in those who died. Mortality was directly related to high systemic inflammation (path coefficient = 0.49), whereas diarrhea, high calprotectin, and low SCFA production related to death indirectly via their more direct association with systemic inflammation. CONCLUSIONS Diarrhea, high intestinal inflammation, low concentrations of fecal SCFAs, and high systemic inflammation are significantly related to mortality in SAM. However, these relations were not mediated by the presence of intestinal pathogens. These findings offer an important understanding of inflammatory changes in SAM, which may lead to improved therapies. This trial was registered at www.controlled-trials.com as ISRCTN13916953.
Collapse
Affiliation(s)
- Suzanna Attia
- Division of Gastroenterology, Hepatology, and Nutrition
| | - Christian J Versloot
- Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning
| | - Wieger Voskuijl
- Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi.,Global Child Health Group, Emma Children's Hospital, Academic Medical Centre, Amsterdam, Netherlands
| | - Sara J van Vliet
- University of Groningen, University Medical Center Groningen, Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Groningen, Netherlands
| | - Valeria Di Giovanni
- Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning
| | - Ling Zhang
- Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning
| | | | - Céline Bourdon
- Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - James A Berkley
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi Nuffield Department of Clinical Medicine, Oxford University, Oxford, United Kingdom; and.,Childhood Acute Illness and Nutrition Network (CHAIN)
| | - Patrick F van Rheenen
- University of Groningen, University Medical Center Groningen, Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Groningen, Netherlands
| | - Robert Hj Bandsma
- Division of Gastroenterology, Hepatology, and Nutrition, .,Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning.,Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada.,University of Groningen, University Medical Center Groningen, Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Groningen, Netherlands.,Childhood Acute Illness and Nutrition Network (CHAIN)
| |
Collapse
|
31
|
Malnutrition in Healthy Individuals Results in Increased Mixed Cytokine Profiles, Altered Neutrophil Subsets and Function. PLoS One 2016; 11:e0157919. [PMID: 27548305 PMCID: PMC4993519 DOI: 10.1371/journal.pone.0157919] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 06/07/2016] [Indexed: 01/09/2023] Open
Abstract
Malnutrition is commonly associated with increased infectious disease susceptibility and severity. Whereas malnutrition might enhance the incidence of disease as well as its severity, active infection can in turn exacerbate malnutrition. Therefore, in a malnourished individual suffering from a severe infection, it is not possible to determine the contribution of the pre-existing malnutrition and/or the infection itself to increased disease severity. In the current study we focussed on two groups of malnourished, but otherwise healthy individuals: moderately malnourished (BMI: 18.4–16.5) and severely malnourished (BMI <16.5) and compared several immune parameters with those of individuals with a normal BMI (≥18.5). Our results show a similar haematological profile in all three groups, as well as a similar ratio of CD4+ and CD8+ T cells. We found significant correlations between low BMI and increased levels of T helper (Th) 1 (Interferon (IFN)-γ, (interleukin (IL)-2, IL-12), Th2 (IL-4, IL-5, IL-13), as well as IL-10, IL-33 and tumor necrosis factor-α, but not IL-8 or C reactive protein. The activities of arginase, an enzyme associated with immunosuppression, were similar in plasma, peripheral blood mononuclear cells (PBMC) and neutrophils from all groups and no differences in the expression levels of CD3ζ, a marker of T cell activation, were observed in CD4+ and CD8+T cells. Furthermore, whereas the capacity of neutrophils from the malnourished groups to phagocytose particles was not impaired, their capacity to produce reactive oxygen species was impaired. Finally we evaluated the frequency of a subpopulation of low-density neutrophils and show that they are significantly increased in the malnourished individuals. These differences were more pronounced in the severely malnourished group. In summary, our results show that even in the absence of apparent infections, healthy malnourished individuals display dysfunctional immune responses that might contribute to increased susceptibility and severity to infectious diseases.
Collapse
|
32
|
Abstract
Malnutrition and tuberculosis are both problems mostly of the developing countries. Tuberculosis can lead to malnutrition and malnutrition may predispose to tuberculosis. Poor nutrition leads to protein-energy malnutrition and micronutrients deficiencies which lead to immunodeficiency. This secondary immunodeficiency increases the host's susceptibility to infection and hence increase the risk for developing tuberculosis. Tuberculosis itself leads to reduction in appetite, nutrient malabsorption, micronutrient malabsorption, and altered metabolism leading to wasting and poor nutritional status. Nutritional status and dietary intake and hence nutritional status of patients get improved during antituberculosis treatment.
Collapse
Affiliation(s)
- Surya Kant
- a Department of Pulmonary Medicine, C. S. M. Medical University (Erstwhile King George Medical College) , Lucknow , UP , India
| | | | | |
Collapse
|
33
|
Naylor C, Petri WA. Leptin Regulation of Immune Responses. Trends Mol Med 2016; 22:88-98. [PMID: 26776093 DOI: 10.1016/j.molmed.2015.12.001] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/06/2015] [Accepted: 12/10/2015] [Indexed: 12/19/2022]
Abstract
Leptin is a regulatory hormone with multiple roles in the immune system. We favor the concept that leptin signaling 'licenses' various immune cells to engage in immune responses and/or to differentiate. Leptin is an inflammatory molecule that is capable of activating both adaptive and innate immunity. It can also 'enhance' immune functions, including inflammatory cytokine production in macrophages, granulocyte chemotaxis, and increased Th17 proliferation. Leptin can also 'inhibit' cells; CD4(+) T cells are inhibited from differentiating into regulatory T cells in the presence of elevated leptin, while NK cells can exhibit impaired cytotoxicity under the same circumstances. Consequently, understanding the effect of leptin signaling is important to appreciate various aspects of immune dysregulation observed in malnutrition, obesity, and autoimmunity.
Collapse
Affiliation(s)
- Caitlin Naylor
- Medical Research Council Unit, Atlantic Blvd, Serrekunda, Gambia.
| | | |
Collapse
|
34
|
Mello AS, de Oliveira DC, Bizzarro B, Sá-Nunes A, Hastreiter AA, Beltran JSDO, Xavier JG, Borelli P, Fock RA. Protein malnutrition alters spleen cell proliferation and IL-2 and IL-10 production by affecting the STAT-1 and STAT-3 balance. Inflammation 2015; 37:2125-38. [PMID: 24986442 DOI: 10.1007/s10753-014-9947-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Protein malnutrition (PM) is an important public health problem that affects resistance to infection by impairing a number of physiological processes. PM induces structural changes in the lymphoid organs that affect the roles of the immune and inflammatory responses in a crucial way. The activation of different transcription factors, including signal transducer and activator of transcription (STAT) family members, leads to the production of different cytokines, which are mediators essential to mounting adequate immune and inflammatory responses. In this study, malnourished animals presented anemia, leukopenia, and a severe reduction in spleen cellularity, with reduced numbers of most cell populations, as well as increased percentages of CD3(+) and CD4(+) cells. The proliferation rates were reduced, and cells were increasingly observed in the G0/G1 cell cycle phase; further, IL-2 production was reduced, while IL-10 production was increased. In spleen cells from malnourished animals, STAT-3 protein expression was increased, with a concomitant reduction in STAT-1 expression. Knowing that STAT-1 and STAT-3 are key transcription factors in both immunity and inflammatory pathways, these results infer, at least in part, a mechanistic pathway that affects the manner or intensity of the immune response in malnourished individuals, increasing susceptibility to infection.
Collapse
Affiliation(s)
- Alexandra Siqueira Mello
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Gavia-García G, González-Martínez H, Miliar-García Á, Bonilla-González E, Rosas-Trejo MDLÁ, Königsberg M, Nájera-Medina O, Luna-López A, González-Torres MC. Oxidative damage and antioxidant defense in thymus of malnourished lactating rats. Nutrition 2015; 31:1408-15. [PMID: 26429663 DOI: 10.1016/j.nut.2015.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/29/2015] [Accepted: 05/10/2015] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Malnutrition has been associated with oxidative damage by altered antioxidant protection mechanisms. Specifically, the aim of this study was to evaluate oxidative damage (DNA and lipid) and antioxidant status (superoxide dismutase [SOD], glutathione peroxidase [GPx], and catalase [CAT] mRNA, and protein expression) in thymus from malnourished rat pups. METHODS Malnutrition was induced during the lactation period by the food competition method. Oxidative DNA damage was determined quantifying 8-oxo-7, 8-dihydro-2'-deoxyguanosine adduct by high-performance liquid chromatography. Lipid peroxidation was assessed by the formation of thiobarbituric acid-reactive substances. Levels of gene and protein expression of SOD, GPx, and CAT were evaluated by real-time polymerase chain reaction and Western blot, respectively. Antioxidant enzyme activities were measured spectrophotometrically. RESULTS Oxidative DNA damage and lipid peroxidation significantly increased in second-degree (MN-2) and third-degree malnourished (MN-3) rats compared with well-nourished rats. Higher amounts of oxidative damage, lower mRNA expression, and lower relative concentrations of protein, as well as decreased antioxidant activity of SOD, GPx, and CAT were associated with the MN-2 and MN-3 groups. CONCLUSIONS The results of this study demonstrated that higher body-weight deficits were related to alterations in antioxidant protection, which contribute to increased levels of damage in the thymus. To our knowledge, this study demonstrated for the first time that early in life, malnutrition leads to increased DNA and lipid oxidative damage, attributable to damaged antioxidant mechanisms including transcriptional and enzymatic activity alterations. These findings may contribute to the elucidation of the causes of previously reported thymus dysfunction, and might explain partially why children and adults who have overcome child undernourishment experience immunologic deficiencies.
Collapse
Affiliation(s)
- Graciela Gavia-García
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico; Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico
| | - Haydeé González-Martínez
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, México City, Mexico
| | - Ángel Miliar-García
- Sección de Estudios de Posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, México City, Mexico
| | - Edmundo Bonilla-González
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico
| | | | - Mina Königsberg
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico
| | - Oralia Nájera-Medina
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, México City, Mexico
| | - Armando Luna-López
- Departamento de Investigación Básica, Instituto Nacional de Geriatría, México City, Mexico
| | | |
Collapse
|
36
|
Rodríguez-Martínez CE, Rodríguez DA, Nino G. Respiratory syncytial virus, adenoviruses, and mixed acute lower respiratory infections in children in a developing country. J Med Virol 2015; 87:774-81. [PMID: 25648409 DOI: 10.1002/jmv.24139] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2014] [Indexed: 11/10/2022]
Abstract
There is growing evidence suggesting greater severity and worse outcomes in children with mixed as compared to single respiratory virus infections. However, studies that assess the risk factors that may predispose a child to a mixture of respiratory syncytial virus (RSV) and adenoviral infections, are scarce. In a retrospective cohort study, the study investigated the epidemiology of RSV and adenovirus infections and predictors of mixed RSV-adenoviral infections in young children hospitalized with acute lower respiratory infection in Bogota, Colombia, South America, over a 2-year period 2009-2011. Of a total of 5,539 children admitted with a diagnosis of acute lower respiratory infection, 2,267 (40.9%) who were positive for RSV and/or adenovirus were selected. Out the total number of cases, 1,416 (62.5%) infections occurred during the 3-month period from March to May, the first rainy season of Bogota, Colombia. After controlling for gender, month when the nasopharyngeal sample was taken, and other pre-existing conditions, it was found that an age greater than 6 months (OR:1.74; CI 95%:1.05-2.89; P = 0.030) and malnutrition as a comorbidity (OR:9.92; CI 95%:1.01-100.9; P = 0.049) were independent predictors of mixed RSV-adenoviral infections in the sample of patients. In conclusion, RSV and adenovirus are significant causes of acute lower respiratory infection in infants and young children in Bogota, Colombia, especially during the first rainy season. The identified predictors of mixed RSV-adenoviral infections should be taken into account when planning intervention, in order to reduce the burden of acute lower respiratory infection in young children living in the country.
Collapse
Affiliation(s)
- Carlos E Rodríguez-Martínez
- Department of Pediatrics, School of Medicine, Universidad Nacional de Colombia, Bogota, Colombia; Research Unit, Military Hospital of Colombia, Bogota, Colombia; Department of Pediatric Pulmonology and Pediatric Critical Care Medicine, School of Medicine, Universidad El Bosque, Bogota, Colombia
| | | | | |
Collapse
|
37
|
Kuvibidila S, Warrier RP, Haynes J, Baliga SB. Hydroxyurea and Zileuton Differentially Modulate Cell Proliferation and Interleukin-2 Secretion by Murine Spleen Cells: Possible Implication on the Immune Function and Risk of Pain Crisis in Patients with Sickle Cell Disease. Ochsner J 2015; 15:241-247. [PMID: 26412995 PMCID: PMC4569155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Hydroxyurea (HU) reduces major complications associated with sickle cell disease in part because of the induction of fetal hemoglobin. However, because of its antiproliferative property, its long-term use may impair immunity. Zileuton, a derivative of HU, also induces fetal hemoglobin and has antiinflammatory properties, a feature that can reduce the risk of sickling. Our goal was to investigate the capacity of both drugs to modulate the secretion of interleukin-2 (IL-2), a regulatory cytokine for immune responses. METHODS Spleen cells obtained from 11 4-month-old C57BL/6 female mice were incubated without and with 10 μg/mL HU or zileuton, 2.5 μg/mL concanavalin A (ConA), 20 μg/mL phytohemagglutinin (PHA), and 50 ng/mL anti-CD3 antibody for 12-48 h. IL-2 was measured in the supernatant by enzyme-linked immunosorbent assay and cell proliferation by (3)H-thymidine uptake. RESULTS While HU reduced lymphocyte proliferation in response to mitogens (P<0.05), zileuton did not. Baseline IL-2 concentration and PHA-induced IL-2 were not significantly affected by either drug. Contrary to what we expected, while HU increased IL-2 supernatant levels 1.17-fold to 6.5-fold in anti-CD3 antibody-treated cells (P<0.05), zileuton decreased them 35%-65% (P<0.05). Zileuton likely reduced IL-2 levels by inhibiting 5-lipoxygenase, hence leukotriene B4 production, an IL-2 inducer. HU did not decrease IL-2 secretion likely because of its lack of effect on mRNA and protein synthesis. CONCLUSION Modulation of IL-2 secretion by zileuton and/or reduced lymphocyte proliferation by HU may impair the immune response of patients with sickle cell disease but may also be beneficial by attenuating inflammation independently of fetal hemoglobin induction.
Collapse
Affiliation(s)
- Solo Kuvibidila
- Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA
- Division of Research, The Research Institute for Children, Children's Hospital, New Orleans, LA
| | - Rajasekharan P. Warrier
- Department of Pediatrics, Division of Hematology/Oncology, Louisiana State University Health Sciences Center, New Orleans, LA
- Department of Pediatric Hematology/Oncology, Ochsner Clinic Foundation, New Orleans, LA
- The University of Queensland School of Medicine, Ochsner Clinical School, New Orleans, LA
| | - Johnson Haynes
- Department of Pediatrics and The Sickle Cell Center, University of South Alabama College of Medicine, Mobile, AL
| | - Surendra B. Baliga
- Department of Pediatrics and The Sickle Cell Center, University of South Alabama College of Medicine, Mobile, AL
| |
Collapse
|
38
|
Abstract
OBJECTIVES The aim of the present study was to establish the correlations between the polymorphisms of the genes interleukin-6 (IL-6) 572, 190, and 174 in children's malnutrition. METHODS We assessed 283 hospitalized children and divided them into 2 groups: group I (control) included 110 patients with normal nutritional status, median (range) age 10.90 (1-18) years; and group II consisted of 173 malnourished patients, median (range) age 10.70 (1-18) years. RESULTS The 2 groups underwent IL-6 572 cytosine allele (C)/guanine allele (G), 190 C/thymine allele (T), and 174 G/C polymorphism testing, measurement of anthropometric indicators (mid-upper arm circumference and tricipital skinfold thickness [TST]), and paraclinical evaluation (protein, albumin). We observed that the GG and CG genotypes were more frequent in malnourished children for the IL-6 174 gene (P = 0.0001), whereas the CT heterozygous genotype was more frequent in the malnourished group for the IL-6 190 gene (P = 0.003). Body mass index (BMI), middle upper arm circumference (MUAC), TST, and low serum albumin levels correlated with the GG and CG genotypes of the IL-6 572 and IL-6 174 genes, and with the CT genotype of the IL-6 190 gene, in children with malnutrition, whereas the IL-6 190 TT genotype was a protective factor for malnutrition (P = 0.0001). CONCLUSIONS Malnutrition is more frequently associated in children with IL-6 174 G allele carriers (GG and CG genotypes), whereas IL-6 190 TT genotype has a protective function. In malnourished children, the IL-6 572/190/174 GG/CT/CG, GG/CT/GG, GG/CC/GG, and GG/CC/CG combined genotypes are more frequent.
Collapse
|
39
|
Corware K, Yardley V, Mack C, Schuster S, Al-Hassi H, Herath S, Bergin P, Modolell M, Munder M, Müller I, Kropf P. Protein energy malnutrition increases arginase activity in monocytes and macrophages. Nutr Metab (Lond) 2014; 11:51. [PMID: 25392710 PMCID: PMC4228191 DOI: 10.1186/1743-7075-11-51] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/24/2014] [Indexed: 11/24/2022] Open
Abstract
Background Protein energy malnutrition is commonly associated with immune dysfunctions and is a major factor in susceptibility to infectious diseases. Methods In this study, we evaluated the impact of protein energy malnutrition on the capacity of monocytes and macrophages to upregulate arginase, an enzyme associated with immunosuppression and increased pathogen replication. Results Our results show that monocytes and macrophages are significantly increased in the bone marrow and blood of mice fed on a protein low diet. No alteration in the capacity of bone marrow derived macrophages isolated from malnourished mice to phagocytose particles, to produce the microbicidal molecule nitric oxide and to kill intracellular Leishmania parasites was detected. However, macrophages and monocytes from malnourished mice express significantly more arginase both in vitro and in vivo. Using an experimental model of visceral leishmaniasis, we show that following protein energy malnutrition, the increased parasite burden measured in the spleen of these mice coincided with increased arginase activity and that macrophages provide a more permissive environment for parasite growth. Conclusions Taken together, these results identify a novel mechanism in protein energy malnutrition that might contributes to increased susceptibility to infectious diseases by upregulating arginase activity in myeloid cells. Electronic supplementary material The online version of this article (doi:10.1186/1743-7075-11-51) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Karina Corware
- Department of Medicine, Section of Immunology, Faculty of Medicine, Imperial College London, Norfolk Place, London, W2 1PG UK
| | - Vanessa Yardley
- Immunology and Infection Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Christopher Mack
- Department of Medicine, Section of Immunology, Faculty of Medicine, Imperial College London, Norfolk Place, London, W2 1PG UK
| | - Steffen Schuster
- Department of Biochemistry, WHO Immunology Research and Training Center, University of Lausanne, Lausanne, Switzerland
| | - Hafid Al-Hassi
- Department of Medicine, Section of Immunology, Faculty of Medicine, Imperial College London, Norfolk Place, London, W2 1PG UK
| | - Shanthi Herath
- School of Biological Sciences, Royal Holloway, University of London, Egham, UK
| | - Philip Bergin
- International AIDS Vaccine Initiative Human Immunology Laboratory, Faculty of Medicine, Imperial College London, London, UK
| | - Manuel Modolell
- Department of Cellular Immunology, Max-Planck-Institute for Immunobiology and Epigenetics, Freiburg, Germany
| | - Markus Munder
- Third Department of Medicine (Hematology, Oncology, and Pneumology), University Medical Center Mainz, Mainz, Germany
| | - Ingrid Müller
- Department of Medicine, Section of Immunology, Faculty of Medicine, Imperial College London, Norfolk Place, London, W2 1PG UK
| | - Pascale Kropf
- Department of Medicine, Section of Immunology, Faculty of Medicine, Imperial College London, Norfolk Place, London, W2 1PG UK
| |
Collapse
|
40
|
Morais NGD, Costa TBD, Severo MS, Castro CMMBD. Long-term effects of neonatal malnutrition on microbicide response, production of cytokines, and survival of macrophages infected by Staphylococcus aureus sensitive/resistant to methicillin. REV NUTR 2014. [DOI: 10.1590/1415-52732014000500005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE: To assess microbicide function and macrophage viability after in vitro cellular infection by methicillin-sensitive/resistant Staphylococcus aureus in nourished rats and rats subjected to neonatal malnutrition. METHODS: Male Wistar rats (n=40) were divided in two groups: Nourished (rats suckled by dams consuming a 17% casein diet) and Malnourished (rats suckled by dams consuming an 8% casein diet). Macrophages were recovered after tracheotomy, by bronchoalveolar lavage. After mononuclear cell isolation, four systems were established: negative control composed exclusively of phagocytes; positive control composed of macrophages plus lipopolysaccharide; and two testing systems, macrophages plus methicillin-sensitive Staphylococcus aureus and macrophages plus methicillin-resistant Staphylococcus aureus. The plates were incubated in a humid atmosphere at 37 degrees Celsius containing 5% CO2 for 24 hours. After this period tests the microbicidal response, cytokine production, and cell viability were analyzed. The statistical analysis consisted of analysis of variance (p<0.05). RESULTS: Malnutrition reduced weight gain, rate of phagocytosis, production of superoxide anion and nitric oxide, and macrophage viability. Production of nitrite and interleukin 18, and viability of macrophages infected with methicillin-resistant Staphylococcus aureus were lower. CONCLUSION: The neonatal malnutrition model compromised phagocyte function and reduced microbicidal response and cell viability. Interaction between malnutrition and the methicillin-resistant strain decreased the production of inflammatory mediators by effector cells of the immune response, which may compromise the immune system's defense ability.
Collapse
|
41
|
He ZX, Sun ZH, Yang WZ, Beauchemin KA, Tang SX, Zhou CS, Han XF, Wang M, Kang JH, Tan ZL. Effects of maternal protein or energy restriction during late gestation on immune status and responses to lipopolysaccharide challenge in postnatal young goats. J Anim Sci 2014; 92:4856-64. [PMID: 25253814 DOI: 10.2527/jas.2014-7904] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Knowledge of maternal malnutrition of ruminants and effects on development of the immune system of their offspring is lacking. A study was conducted to investigate the effects of maternal protein or energy restriction during late gestation on immune status of their offspring at different ages. Sixty-three pregnant goats (local breed, Liuyang black goat, 22.2 ± 1.5 kg at d 90 of gestation) were fed control (CON, ME = 9.34 MJ/kg and CP = 12.5%, DM basis), 40% protein restricted (PR), or 40% energy restricted (ER) diets from d 91 of gestation to parturition, after which all animals received an adequate diet for nutritional recovery. Plasma concentrations of complement components (C3, C4), C-reactive protein (CRP) and immunoglobulins (IgG and IgM), jejunum cytokines (IL-2, IL-6, and IL-10) expression levels and morphology in the offspring were measured. Additionally, plasma concentration of complement and IL-6, and cytokines expression levels in gastrointestinal tract obtained at 6 wk from young goats were assessed under saline or lipopolysaccharide (LPS) challenging conditions. Maternal PR or ER decreased (P < 0.05) plasma C3, C4, IgG, and IgM concentrations, and IL-2 and IL-6 mRNA expression in the jejunum from neonatal kids, but did not alter (P > 0.05) plasma CRP concentration. The IL-10 mRNA expression of jejunum from PR kids was also less (P < 0.01) than that from CON kids. Moreover, jejunum villous height (P < 0.10 in PR, P < 0.05 in ER) and crypt depth (P < 0.05 both in PR and ER) were reduced in neonatal kids from malnourished mothers. At 6 wk of age, there were no differences (P > 0.05) in any plasma or tissue immune parameters among the 3 treatments. However, when given a LPS challenge, ER and PR kids had greater (P = 0.02) IL-6 concentration compared with CON kids. Our results suggest that both PR and ER during late gestation induced short-term as well as long-lasting alterations on immune responses in their offspring, which may make the animals more susceptible to a bacterial pathogen challenge. The present findings expand the existing knowledge in immunological mechanisms responsible for the development of disease in later life.
Collapse
Affiliation(s)
- Z X He
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada
| | - Z H Sun
- College of Animal Sciences and Technology, Southwest University, Chongqing 400715, China
| | - W Z Yang
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada
| | - K A Beauchemin
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada
| | - S X Tang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - C S Zhou
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - X F Han
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - M Wang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - J H Kang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Z L Tan
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| |
Collapse
|
42
|
Rytter MJH, Kolte L, Briend A, Friis H, Christensen VB. The immune system in children with malnutrition--a systematic review. PLoS One 2014; 9:e105017. [PMID: 25153531 PMCID: PMC4143239 DOI: 10.1371/journal.pone.0105017] [Citation(s) in RCA: 357] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/16/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Malnourished children have increased risk of dying, with most deaths caused by infectious diseases. One mechanism behind this may be impaired immune function. However, this immune deficiency of malnutrition has not previously been systematically reviewed. OBJECTIVES To review the scientific literature about immune function in children with malnutrition. METHODS A systematic literature search was done in PubMed, and additional articles identified in reference lists and by correspondence with experts in the field. The inclusion criteria were studies investigating immune parameters in children aged 1-60 months, in relation to malnutrition, defined as wasting, underweight, stunting, or oedematous malnutrition. RESULTS The literature search yielded 3402 articles, of which 245 met the inclusion criteria. Most were published between 1970 and 1990, and only 33 after 2003. Malnutrition is associated with impaired gut-barrier function, reduced exocrine secretion of protective substances, and low levels of plasma complement. Lymphatic tissue, particularly the thymus, undergoes atrophy, and delayed-type hypersensitivity responses are reduced. Levels of antibodies produced after vaccination are reduced in severely malnourished children, but intact in moderate malnutrition. Cytokine patterns are skewed towards a Th2-response. Other immune parameters seem intact or elevated: leukocyte and lymphocyte counts are unaffected, and levels of immunoglobulins, particularly immunoglobulin A, are high. The acute phase response appears intact, and sometimes present in the absence of clinical infection. Limitations to the studies include their observational and often cross-sectional design and frequent confounding by infections in the children studied. CONCLUSION The immunological alterations associated with malnutrition in children may contribute to increased mortality. However, the underlying mechanisms are still inadequately understood, as well as why different types of malnutrition are associated with different immunological alterations. Better designed prospective studies are needed, based on current understanding of immunology and with state-of-the-art methods.
Collapse
Affiliation(s)
| | - Lilian Kolte
- Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre, Denmark
| | - André Briend
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- Department for International Health, University of Tampere, School of Medicine, Tampere, Finland
| | - Henrik Friis
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Vibeke Brix Christensen
- Department of Paediatrics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| |
Collapse
|
43
|
de Queiroz CAA, Fonseca SGC, Frota PB, Figueiredo IL, Aragão KS, Magalhães CEC, de Carvalho CBM, Lima AÂM, Ribeiro RA, Guerrant RL, Moore SR, Oriá RB. Zinc treatment ameliorates diarrhea and intestinal inflammation in undernourished rats. BMC Gastroenterol 2014; 14:136. [PMID: 25095704 PMCID: PMC4142448 DOI: 10.1186/1471-230x-14-136] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 07/28/2014] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND WHO guidelines recommend zinc supplementation as a key adjunct therapy for childhood diarrhea in developing countries, however zinc's anti-diarrheal effects remain only partially understood. Recently, it has been recognized that low-grade inflammation may influence stunting. In this study, we examined whether oral zinc supplementation could improve weight, intestinal inflammation, and diarrhea in undernourished weanling rats. METHODS Rats were undernourished using a northeastern Brazil regional diet (RBD) for two weeks, followed by oral gavage with a saturated lactose solution (30 g/kg) in the last 7 days to induce osmotic diarrhea. Animals were checked for diarrhea daily after lactose intake. Blood was drawn in order to measure serum zinc levels by atomic absorption spectroscopy. Rats were euthanized to harvest jejunal tissue for histology and cytokine profiles by ELISA. In a subset of animals, spleen samples were harvested under aseptic conditions to quantify bacterial translocation. RESULTS Oral zinc supplementation increased serum zinc levels following lactose-induced osmotic diarrhea. In undernourished rats, zinc improved weight gain following osmotic diarrhea and significantly reduced diarrheal scores by the third day of lactose intake (p < 0.05), with improved jejunum histology (p < 0.0001). Zinc supplementation diminished bacterial translocation only in lactose-challenged undernourished rats (p = 0.03) compared with the untreated challenged controls and reduced intestinal IL-1β and TNF-α cytokines to control levels. CONCLUSION Altogether our findings provide novel mechanisms of zinc action in the setting of diarrhea and undernutrition and support the use of zinc to prevent the vicious cycle of malnutrition and diarrhea.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Reinaldo B Oriá
- Laboratory of the Biology of Tissue Healing, Ontogeny and Nutrition, Department of Morphology and Institute of Biomedicine, School of Medicine, Federal University of Ceara, Rua Cel, Nunes de Melo, 1315, Fortaleza, CE, Brazil.
| |
Collapse
|
44
|
Lutwama F, Kagina BM, Wajja A, Waiswa F, Mansoor N, Kirimunda S, Hughes EJ, Kiwanuka N, Joloba ML, Musoke P, Scriba TJ, Mayanja-Kizza H, Day CL, Hanekom WA. Distinct T-cell responses when BCG vaccination is delayed from birth to 6 weeks of age in Ugandan infants. J Infect Dis 2013; 209:887-97. [PMID: 24179111 DOI: 10.1093/infdis/jit570] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND In Uganda, the tuberculosis vaccine BCG is administered on the first day of life. Infants delivered at home receive BCG vaccine at their first healthcare facility visit at 6 weeks of age. Our aim was to determine the effect of this delay in BCG vaccination on the induced immune response. METHODS We assessed CD4(+) and CD8(+) T-cell responses with a 12-hour whole-blood intracellular cytokine/cytotoxic marker assay, and with a 6-day proliferation assay. RESULTS We enrolled 92 infants: 50 had received BCG vaccine at birth and 42 at 6 weeks of age. Birth vaccination was associated with (1) greater induction of CD4(+) and CD8(+) T cells expressing either interferon γ (IFN-γ) alone or IFN-γ together with perforin and (2) induction of proliferating cells that had greater capacity to produce IFN-γ, tumor necrosis factor α (TNF-α), and interleukin 2 together, compared with delayed vaccination. CONCLUSIONS Distinct patterns of T-cell induction occurred when BCG vaccine was given at birth and at 6 weeks of age. We propose that this diversity might impact protection against tuberculosis. Our results differ from those of studies of delayed BCG vaccination in South Africa and the Gambia, suggesting that geographical and population heterogeneity may affect the BCG vaccine-induced T-cell response.
Collapse
Affiliation(s)
- F Lutwama
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Diseases and Molecular Medicine
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Olofin I, McDonald CM, Ezzati M, Flaxman S, Black RE, Fawzi WW, Caulfield LE, Danaei G. Associations of suboptimal growth with all-cause and cause-specific mortality in children under five years: a pooled analysis of ten prospective studies. PLoS One 2013; 8:e64636. [PMID: 23734210 PMCID: PMC3667136 DOI: 10.1371/journal.pone.0064636] [Citation(s) in RCA: 316] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/16/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Child undernutrition affects millions of children globally. We investigated associations between suboptimal growth and mortality by pooling large studies. METHODS Pooled analysis involving children 1 week to 59 months old in 10 prospective studies in Africa, Asia and South America. Utilizing most recent measurements, we calculated weight-for-age, height/length-for-age and weight-for-height/length Z scores, applying 2006 WHO Standards and the 1977 NCHS/WHO Reference. We estimated all-cause and cause-specific mortality hazard ratios (HR) using proportional hazards models comparing children with mild (-2≤Z<-1), moderate (-3≤Z<-2), or severe (Z<-3) anthropometric deficits with the reference category (Z≥-1). RESULTS 53 809 children were eligible for this re-analysis and contributed a total of 55 359 person-years, during which 1315 deaths were observed. All degrees of underweight, stunting and wasting were associated with significantly higher mortality. The strength of association increased monotonically as Z scores decreased. Pooled mortality HR was 1.52 (95% Confidence Interval 1.28, 1.81) for mild underweight; 2.63 (2.20, 3.14) for moderate underweight; and 9.40 (8.02, 11.03) for severe underweight. Wasting was a stronger determinant of mortality than stunting or underweight. Mortality HR for severe wasting was 11.63 (9.84, 13.76) compared with 5.48 (4.62, 6.50) for severe stunting. Using older NCHS standards resulted in larger HRs compared with WHO standards. In cause-specific analyses, all degrees of anthropometric deficits increased the hazards of dying from respiratory tract infections and diarrheal diseases. The study had insufficient power to precisely estimate effects of undernutrition on malaria mortality. CONCLUSIONS All degrees of anthropometric deficits are associated with increased risk of under-five mortality using the 2006 WHO Standards. Even mild deficits substantially increase mortality, especially from infectious diseases.
Collapse
Affiliation(s)
- Ibironke Olofin
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Christine M. McDonald
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Majid Ezzati
- MRC-HPA Center for Environmental Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Seth Flaxman
- School of Computer Science and Heinz College, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Robert E. Black
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Wafaie W. Fawzi
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Laura E. Caulfield
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Goodarz Danaei
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | | |
Collapse
|
46
|
González-Torres C, González-Martínez H, Miliar A, Nájera O, Graniel J, Firo V, Alvarez C, Bonilla E, Rodríguez L. Effect of malnutrition on the expression of cytokines involved in Th1 cell differentiation. Nutrients 2013; 5:579-93. [PMID: 23429441 PMCID: PMC3635214 DOI: 10.3390/nu5020579] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/25/2013] [Accepted: 02/05/2013] [Indexed: 01/08/2023] Open
Abstract
Malnutrition is a common cause of secondary immune deficiency and has been linked to an increased susceptibility to infection in humans. Malnutrition specifically affects T-cell-mediated immune responses. The aim of this study was to assess in lymphocytes from malnourished children the expression levels of IL-12, IL-18 and IL-21, molecules that induce the differentiation of T cells related to the immunological cellular response (Th1 response) and the production of cytokines related to the immunological cellular response (Th1 cytokines). We found that the expression levels of IL-12, IL-18 and IL-21 were significantly diminished in malnourished children compared to well-nourished children and were coincident with lower plasmatic levels of IL-2 and IFN-γ (Th1 cytokines). In this study, we show for the first time that the gene expression and intracellular production of cytokines responsible for Th1 cell differentiation (IL-12, IL-18 and IL-21) are diminished in malnourished children. As expected, this finding was related to lower plasmatic levels of IL-2 and IFN-γ. The decreased expression of Th1 cytokines observed in this study may contribute to the deterioration of the immunological Type 1 (cellular) response. We hypothesize that the decreased production of IL-12, IL-18 and IL-21 in malnourished children contributes to their inability to eradicate infections.
Collapse
Affiliation(s)
- Cristina González-Torres
- Department of Health Sciences, Autonomus Metropolitan University-Iztapalapa, San Rafael Atlixco 186, CP 09340, México D.F., Mexico; E-Mails: (H.G.-M.); (E.B.); (L.R.)
| | - Haydeé González-Martínez
- Department of Health Sciences, Autonomus Metropolitan University-Iztapalapa, San Rafael Atlixco 186, CP 09340, México D.F., Mexico; E-Mails: (H.G.-M.); (E.B.); (L.R.)
| | - Angel Miliar
- Postgraduate Study Section, High School of Medicine, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, CP 11340, México D.F., Mexico; E-Mail:
| | - Oralia Nájera
- Department of Health Care, Autonomus Metropolitan University-Xochimilco, Calz. del Hueso 1100, CP 04960, México D.F., Mexico; E-Mail:
| | - Jaime Graniel
- Pediatric Hospital-Iztapalapa, Servicios de Salud Gobierno del Distrito Federal, Calzada Ermita Iztapalapa 780, CP 09070, México D.F., Mexico; E-Mail:
| | - Verónica Firo
- General Hospital of Mexico, Servicio de Pediatría, Urgencias y Terapia Intensiva, Secretaría de Salud, Dr. Balmis 148, CP 06726, México D.F., Mexico; E-Mails: (V.F.); (C.A.)
| | - Catalina Alvarez
- General Hospital of Mexico, Servicio de Pediatría, Urgencias y Terapia Intensiva, Secretaría de Salud, Dr. Balmis 148, CP 06726, México D.F., Mexico; E-Mails: (V.F.); (C.A.)
| | - Edmundo Bonilla
- Department of Health Sciences, Autonomus Metropolitan University-Iztapalapa, San Rafael Atlixco 186, CP 09340, México D.F., Mexico; E-Mails: (H.G.-M.); (E.B.); (L.R.)
| | - Leonor Rodríguez
- Department of Health Sciences, Autonomus Metropolitan University-Iztapalapa, San Rafael Atlixco 186, CP 09340, México D.F., Mexico; E-Mails: (H.G.-M.); (E.B.); (L.R.)
| |
Collapse
|
47
|
de Melo JF, da Costa TB, da Costa Lima TD, Chaves MEC, Vayssade M, Nagel MD, de Castro CMMB. Long-term effects of a neonatal low-protein diet in rats on the number of macrophages in culture and the expression/production of fusion proteins. Eur J Nutr 2012; 52:1475-82. [DOI: 10.1007/s00394-012-0453-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 09/27/2012] [Indexed: 01/21/2023]
|
48
|
Costa TBD, Morais NGD, Almeida TMD, Severo MS, Castro CMMBD. Desnutrição neonatal e produção de IFN-γ IL-12 e IL-10 por macrófagos/linfócitos: estudo da infecção celular, in vitro, por Staphylococcus aureus meticilina sensível e meticilina resistente. REV NUTR 2012. [DOI: 10.1590/s1415-52732012000500006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJETIVO: Avaliar a influência da desnutrição neonatal sobre a produção de Interferon gama, Interleucina-12 e Interleucina-10 em cultura de macrófagos alveolares e linfócitos infectados, in vitro, com Staphylococcus aureus sensível/resistente à meticilina. MÉTODOS: Ratos machos Wistar foram amamentados por mães cuja dieta, durante a lactação, continha 17% de proteína no grupo nutrido e 8% no grupo desnutrido. Após desmame, ambos os grupos receberam a dieta normoproteica. Os macrófagos foram obtidos após traqueostomia, através da coleta do lavado broncoalveolar. Para obtenção dos linfócitos, foi realizado o procedimento cirúrgico de punção cardíaca. Após o isolamento dos diferentes tipos celulares, procedeuse à realização dos estímulos com as cepas de estudo. A dosagem das citocinas foi realizada pelo método de Enzyme-Linked Immunosorbent Assay, a partir de amostras coletadas do sobrenadante das culturas após 24 horas de incubação. RESULTADOS: A desnutrição acarretou diminuição do crescimento ponderal, redução na produção de Interferon gama em cultura de macrófagos alveolares e linfócitos e diminuição na produção de Interleucina-12 em cultura de macrófagos alveolares. Apenas a produção de Interferon gama e Interleucina-10 em cultura de macrófagos alveolares apresentou diferença entre as cepas analisadas, em ambos os grupos estudados. CONCLUSÃO: O modelo de desnutrição neonatal produziu sequela no peso corporal e reduziu a produção de citocinas próinflamatórias (Interleucina-12 e Interferon gama), indicando que esse modelo de desnutrição pode comprometer a resolução de um processo infeccioso. A cepa de Staphylococcus aureus resistente à meticilina estimulou uma maior produção de Interferon gama e Interleucina-10 por macrófagos alveolares, o que sugeriu estimulação imunológica mais intensa, por essa cepa, nesse tipo celular especificamente.
Collapse
|
49
|
Kolling G, Wu M, Guerrant RL. Enteric pathogens through life stages. Front Cell Infect Microbiol 2012; 2:114. [PMID: 22937528 PMCID: PMC3427492 DOI: 10.3389/fcimb.2012.00114] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 08/08/2012] [Indexed: 01/30/2023] Open
Abstract
Enteric infections and diarrheal diseases constitute pervasive health burdens throughout the world, with rates being highest at the two ends of life. During the first 2–3 years of life, much of the disease burden may be attributed to infection with enteric pathogens including Salmonella, rotavirus, and many other bacterial, viral, and protozoan organisms; however, infections due to Clostridium difficile exhibit steady increases with age. Still others, like Campylobacter infections in industrialized settings are high in early life (<2 years old) and increase again in early adulthood (called the “second weaning” by some). The reasons for these differences undoubtedly reside in part in pathogen differences; however, host factors including the commensal intestinal microbial communities, immune responses (innate and acquired), and age-dependant shifts likely play important roles. Interplay of these factors is illustrated by studies examining changes in human gut microbiota with inflammatory bowel disease and irritable bowel syndrome. Recent gut microbial surveys have indicated dramatic shifts in gut microbial population structure from infants to young adults to the elders. An understanding of the evolution of these factors and their interactions (e.g., how does gut microbiota modulate the “inflamm-aging” process or vice versa) through the human life “cycle” will be important in better addressing and controlling these enteric infections and their consequences for both quality and quantity of life (often assessed as disability adjusted life-years or “DALYs”).
Collapse
Affiliation(s)
- Glynis Kolling
- Department of Internal Medicine, Division of Infectious Diseases and International Health, Center for Global Health, University of Virginia Charlottesville, VA, USA
| | | | | |
Collapse
|
50
|
Salva S, Merino MC, Agüero G, Gruppi A, Alvarez S. Dietary supplementation with probiotics improves hematopoiesis in malnourished mice. PLoS One 2012; 7:e31171. [PMID: 22347448 PMCID: PMC3275617 DOI: 10.1371/journal.pone.0031171] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 01/03/2012] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Lactobacillus rhamnosus CRL1505 (Lr) administered during the repletion of immunocompromised-malnourished mice improves the resistance against intestinal and respiratory infections. This effect is associated with an increase in the number and functionality of immune cells, indicating that Lr could have some influence on myeloid and lymphoid cell production and maturation. OBJECTIVE This study analyzed the extent of the damage caused by malnutrition on myeloid and lymphoid cell development in the spleen and bone marrow (BM). We also evaluated the impact of immunobiotics on the recovery of hematopoiesis affected in malnourished mice. METHODS Protein malnourished mice were fed on a balanced conventional diet for 7 or 14 consecutive d with or without supplemental Lr or fermented goat's milk (FGM). Malnourished mice and well-nourished mice were used as controls. Histological and flow cytometry studies were carried out in BM and spleen to study myeloid and lymphoid cells. RESULTS Malnutrition induced quantitative alterations in spleen B and T cells; however, no alteration was observed in the ability of splenic B cells to produce immunoglobulins after challenge with LPS or CpG. The analysis of BM B cell subsets based on B220, CD24, IgM and IgD expression showed that malnutrition affected B cell development. In addition, BM myeloid cells decreased in malnourished mice. On the contrary, protein deprivation increased BM T cell number. These alterations were reverted with Lr or FGM repletion treatments since normal numbers of BM myeloid, T and B cells were observed in these groups. CONCLUSIONS Protein malnutrition significantly alters B cell development in BM. The treatment of malnourished mice with L. rhamnosus CRL1505 was able to induce a recovery of B cells that would explain its ability to increase immunity against infections. This work highlights the possibility of using immunobiotics to accelerate the recovery of lymphopoyesis in immunocompromised-malnourished hosts.
Collapse
Affiliation(s)
- Susana Salva
- Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
| | - María Cecilia Merino
- Department of Clinical Biochemistry, School of Chemical Science, National University of Cordoba, Cordoba, Argentina
| | - Graciela Agüero
- Clinical Biochemistry, School of Biochemistry Chemistry and Pharmacy, National University of Tucuman, Tucuman, Argentina
| | - Adriana Gruppi
- Department of Clinical Biochemistry, School of Chemical Science, National University of Cordoba, Cordoba, Argentina
| | - Susana Alvarez
- Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
- Clinical Biochemistry, School of Biochemistry Chemistry and Pharmacy, National University of Tucuman, Tucuman, Argentina
| |
Collapse
|