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Bourdon C, Diallo AH, Mohammad Sayeem Bin Shahid AS, Khan MA, Saleem AF, Singa BO, Gnoumou BS, Tigoi C, Otieno CA, Oduol CO, Lancioni CL, Manyasi C, McGrath CJ, Maronga C, Lwanga C, Brals D, Ahmed D, Mondal D, Denno DM, Mangale DI, Chimwezi E, Mbale E, Mupere E, Salauddin Mamun GM, Ouédraogo I, Berkley JA, Njunge JM, Njirammadzi J, Mukisa J, Thitiri J, Walson JL, Jemutai J, Tickell KD, Shahrin L, Mallewa M, Hossain MI, Chisti MJ, Timbwa M, Mburu M, Ngari MM, Ngao N, Aber P, Harawa PP, Sukhtankar P, Bandsma RH, Bamouni RM, Molyneux S, Mwaringa S, Shaima SN, Ali SA, Afsana SM, Banu S, Ahmed T, Voskuijl WP, Kazi Z. Childhood growth during recovery from acute illness in Africa and South Asia: a secondary analysis of the childhood acute illness and nutrition (CHAIN) prospective cohort. EClinicalMedicine 2024; 70:102530. [PMID: 38510373 PMCID: PMC10950691 DOI: 10.1016/j.eclinm.2024.102530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/22/2024] Open
Abstract
Background Growth faltering is well-recognized during acute childhood illness and growth acceleration during convalescence, with or without nutritional therapy, may occur. However, there are limited recent data on growth after hospitalization in low- and middle-income countries. Methods We evaluated growth following hospitalization among children aged 2-23 months in sub-Saharan Africa and South Asia. Between November 2016 and January 2019, children were recruited at hospital admission and classified as: not-wasted (NW), moderately-wasted (MW), severely-wasted (SW), or having nutritional oedema (NO). We describe earlier (discharge to 45-days) and later (45- to 180-days) changes in length-for-age [LAZ], weight-for-age [WAZ], mid-upper arm circumference [MUACZ], weight-for-length [WLZ] z-scores, and clinical, nutritional, and socioeconomic correlates. Findings We included 2472 children who survived to 180-days post-discharge: NW, 960 (39%); MW, 572 (23%); SW, 682 (28%); and NO, 258 (10%). During 180-days, LAZ decreased in NW (-0.27 [-0.36, -0.19]) and MW (-0.23 [-0.34, -0.11]). However, all groups increased WAZ (NW, 0.21 [95% CI: 0.11, 0.32]; MW, 0.57 [0.44, 0.71]; SW, 1.0 [0.88, 1.1] and NO, 1.3 [1.1, 1.5]) with greatest gains in the first 45-days. Of children underweight (<-2 WAZ) at discharge, 66% remained underweight at 180-days. Lower WAZ post-discharge was associated with age-inappropriate nutrition, adverse caregiver characteristics, small size at birth, severe or moderate anaemia, and chronic conditions, while lower LAZ was additionally associated with household-level exposures but not with chronic medical conditions. Interpretation Underweight and poor linear growth mostly persisted after an acute illness. Beyond short-term nutritional supplementation, improving linear growth post-discharge may require broader individual and family support. Funding Bill & Melinda Gates FoundationOPP1131320; National Institute for Health ResearchNIHR201813.
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Affiliation(s)
- Celine Bourdon
- Translational Medicine, Hospital for Sick Children, Toronto, ON, Canada
| | - Abdoulaye Hama Diallo
- Department of Public Health, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
- Department of Public Health, Centre Muraz Research Institute, Bobo-Dioulasso, Burkina Faso
| | | | - Md Alfazal Khan
- Health System and Population Studies Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Ali Faisal Saleem
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | | | | | - Caroline Tigoi
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | | | | | | | | | - Christine J. McGrath
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Christopher Maronga
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Christopher Lwanga
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - Daniella Brals
- Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Dilruba Ahmed
- Clinical Microbiology and Immunology Laboratory, Office of Executive Director, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Dinesh Mondal
- Nutrition Research Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Donna M. Denno
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
| | | | - Emmanuel Chimwezi
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Emmie Mbale
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Ezekiel Mupere
- Department of Paediatrics and Child Health, Makerere University College of Health Sciences, Kampala, Uganda
| | - Gazi Md Salauddin Mamun
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Issaka Ouédraogo
- Department of Pediatrics, Banfora Referral Regional Hospital, Banfora, Burkina Faso
| | - James A. Berkley
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - James M. Njunge
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Jenala Njirammadzi
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - John Mukisa
- Department of Immunology and Department of Molecular Biology Makerere University College of Health Sciences, Kampala, Uganda
| | - Johnstone Thitiri
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Judd L. Walson
- Departments of International Health and Medicine, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Julie Jemutai
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Kirkby D. Tickell
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Lubaba Shahrin
- Hospitals, Office of Executive Director, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Macpherson Mallewa
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Md Iqbal Hossain
- Nutrition Research Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mohammod Jobayer Chisti
- Nutrition Research Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Molline Timbwa
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Moses Mburu
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Moses M. Ngari
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Narshion Ngao
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Peace Aber
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - Philliness Prisca Harawa
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Priya Sukhtankar
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Robert H.J. Bandsma
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Sassy Molyneux
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Health Systems and Research Ethics Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Shalton Mwaringa
- Clinical Research Department, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Shamsun Nahar Shaima
- Nutrition Research Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Syed Asad Ali
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Syeda Momena Afsana
- Clinical Biochemistry Laboratory, Office of Executive Director, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Sayera Banu
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition Research Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- Office of Executive Director, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Wieger P. Voskuijl
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
- Amsterdam UMC, Location University of Amsterdam, Amsterdam Institute for Global Child Health, Emma Children’s Hospital, Meibergdreef 9, Amsterdam, the Netherlands
- Amsterdam UMC, Location University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Meibergdreef 9, Amsterdam, the Netherlands
| | - Zaubina Kazi
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
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2
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Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
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Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
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3
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Morrow E, Liu Q, Kiguli S, Swarbrick G, Nsereko M, Null MD, Cansler M, Mayanja-Kizza H, Boom WH, Chheng P, Nyendak MR, Lewinsohn DM, Lewinsohn DA, Lancioni CL. Production of Proinflammatory Cytokines by CD4+ and CD8+ T Cells in Response to Mycobacterial Antigens among Children and Adults with Tuberculosis. Pathogens 2023; 12:1353. [PMID: 38003817 PMCID: PMC10675744 DOI: 10.3390/pathogens12111353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/24/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains a leading cause of pediatric morbidity and mortality. Young children are at high risk of TB following Mtb exposure, and this vulnerability is secondary to insufficient host immunity during early life. Our primary objective was to compare CD4+ and CD8+ T-cell production of proinflammatory cytokines IFN-gamma, IL-2, and TNF-alpha in response to six mycobacterial antigens and superantigen staphylococcal enterotoxin B (SEB) between Ugandan adults with confirmed TB (n = 41) and young Ugandan children with confirmed (n = 12) and unconfirmed TB (n = 41), as well as non-TB lower respiratory tract infection (n = 39). Flow cytometry was utilized to identify and quantify CD4+ and CD8+ T-cell cytokine production in response to each mycobacterial antigen and SEB. We found that the frequency of CD4+ and CD8+ T-cell production of cytokines in response to SEB was reduced in all pediatric cohorts when compared to adults. However, T-cell responses to Mtb-specific antigens ESAT6 and CFP10 were equivalent between children and adults with confirmed TB. In contrast, cytokine production in response to ESAT6 and CFP10 was limited in children with unconfirmed TB and absent in children with non-TB lower respiratory tract infection. Of the five additional mycobacterial antigens tested, PE3 and PPE15 were broadly recognized regardless of TB disease classification and age. Children with confirmed TB exhibited robust proinflammatory CD4+ and CD8+ T-cell responses to Mtb-specific antigens prior to the initiation of TB treatment. Our findings suggest that adaptive proinflammatory immune responses to Mtb, characterized by T-cell production of IFN-gamma, IL-2, and TNF-alpha, are not impaired during early life.
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Affiliation(s)
- Erin Morrow
- School of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
| | - Qijia Liu
- School of Public Health, Oregon Health and Science University, Portland, OR 97239, USA
| | - Sarah Kiguli
- Department of Pediatrics, Makerere University, Mulago Hill Road, Kampala P.O. Box 7072, Uganda
| | - Gwendolyn Swarbrick
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Mary Nsereko
- Uganda-Case Western Research Collaboration, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Megan D. Null
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Meghan Cansler
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Harriet Mayanja-Kizza
- Uganda-Case Western Research Collaboration, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Medicine, Makerere University, Mulago Hill Road, Kampala P.O. Box 7072, Uganda
| | - W. Henry Boom
- Uganda-Case Western Research Collaboration, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Phalkun Chheng
- Uganda-Case Western Research Collaboration, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Melissa R. Nyendak
- Department of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
| | - David M. Lewinsohn
- Department of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
- Division of Pulmonary and Critical Care Medicine, Portland VA Medical Center, Portland, OR 97239, USA
| | - Deborah A. Lewinsohn
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Christina L. Lancioni
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
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4
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Njunge JM, Tickell K, Diallo AH, Sayeem Bin Shahid ASM, Gazi MA, Saleem A, Kazi Z, Ali S, Tigoi C, Mupere E, Lancioni CL, Yoshioka E, Chisti MJ, Mburu M, Ngari M, Ngao N, Gichuki B, Omer E, Gumbi W, Singa B, Bandsma R, Ahmed T, Voskuijl W, Williams TN, Macharia A, Makale J, Mitchel A, Williams J, Gogain J, Janjic N, Mandal R, Wishart DS, Wu H, Xia L, Routledge M, Gong YY, Espinosa C, Aghaeepour N, Liu J, Houpt E, Lawley TD, Browne H, Shao Y, Rwigi D, Kariuki K, Kaburu T, Uhlig HH, Gartner L, Jones K, Koulman A, Walson J, Berkley J. The Childhood Acute Illness and Nutrition (CHAIN) network nested case-cohort study protocol: a multi-omics approach to understanding mortality among children in sub-Saharan Africa and South Asia. Gates Open Res 2022; 6:77. [PMID: 36415883 PMCID: PMC9646488 DOI: 10.12688/gatesopenres.13635.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2022] [Indexed: 08/10/2023] Open
Abstract
Introduction: Many acutely ill children in low- and middle-income settings have a high risk of mortality both during and after hospitalisation despite guideline-based care. Understanding the biological mechanisms underpinning mortality may suggest optimal pathways to target for interventions to further reduce mortality. The Childhood Acute Illness and Nutrition (CHAIN) Network ( www.chainnnetwork.org) Nested Case-Cohort Study (CNCC) aims to investigate biological mechanisms leading to inpatient and post-discharge mortality through an integrated multi-omic approach. Methods and analysis; The CNCC comprises a subset of participants from the CHAIN cohort (1278/3101 hospitalised participants, including 350 children who died and 658 survivors, and 270/1140 well community children of similar age and household location) from nine sites in six countries across sub-Saharan Africa and South Asia. Systemic proteome, metabolome, lipidome, lipopolysaccharides, haemoglobin variants, toxins, pathogens, intestinal microbiome and biomarkers of enteropathy will be determined. Computational systems biology analysis will include machine learning and multivariate predictive modelling with stacked generalization approaches accounting for the different characteristics of each biological modality. This systems approach is anticipated to yield mechanistic insights, show interactions and behaviours of the components of biological entities, and help develop interventions to reduce mortality among acutely ill children. Ethics and dissemination. The CHAIN Network cohort and CNCC was approved by institutional review boards of all partner sites. Results will be published in open access, peer reviewed scientific journals and presented to academic and policy stakeholders. Data will be made publicly available, including uploading to recognised omics databases. Trial registration NCT03208725.
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Affiliation(s)
- James M. Njunge
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Kirkby Tickell
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - Abdoulaye Hama Diallo
- Department of Public Health, Faculty of Health Sciences, University of Ouagadougou, Ouagadougou, Burkina Faso
| | | | - Md. Amran Gazi
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Ali Saleem
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Zaubina Kazi
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Syed Ali
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Caroline Tigoi
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Ezekiel Mupere
- Department of Paediatrics and Child Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | | | - Emily Yoshioka
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - Mohammod Jobayer Chisti
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Moses Mburu
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Moses Ngari
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Narshion Ngao
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Bonface Gichuki
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Elisha Omer
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Wilson Gumbi
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Benson Singa
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Robert Bandsma
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biomedical Sciences, University of Malawi College of Medicine, Blantyre, Malawi
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Wieger Voskuijl
- Amsterdam UMC location, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Centre for Global Child Health & Emma Children’s Hospital, Amsterdam, The Netherlands
| | - Thomas N. Williams
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Institute of Global Health Innovation, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alex Macharia
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | | | | | | | | | | | - Rupasri Mandal
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - David S. Wishart
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Hang Wu
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Lei Xia
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Michael Routledge
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yun Yun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Camilo Espinosa
- Departments of Anesthesiology, Pain, and Perioperative Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Nima Aghaeepour
- Departments of Anesthesiology, Pain, and Perioperative Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jie Liu
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Eric Houpt
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Yan Shao
- Wellcome Sanger Institute, Hinxton, UK
| | - Doreen Rwigi
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Kevin Kariuki
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Timothy Kaburu
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Holm H. Uhlig
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
- Department of Paediatrics and Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Lisa Gartner
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kelsey Jones
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Gastroenterology Department, Great Ormond Street Hospital for Children, London, UK
| | - Albert Koulman
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
- NIHR BRC Nutritional Biomarker Laboratory, University of Cambridge, Cambridge, UK
| | - Judd Walson
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - James Berkley
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Center for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
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5
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Tsegaye AT, Pavlinac PB, Turyagyenda L, Diallo AH, Gnoumou BS, Bamouni RM, Voskuijl WP, van den Heuvel M, Mbale E, Lancioni CL, Mupere E, Mukisa J, Lwanga C, Atuhairwe M, Chisti MJ, Ahmed T, Shahid AS, Saleem AF, Kazi Z, Singa BO, Amam P, Masheti M, Berkley JA, Walson JL, Tickell KD. The Role of Food Insecurity and Dietary Diversity on Recovery from Wasting among Hospitalized Children Aged 6-23 Months in Sub-Saharan Africa and South Asia. Nutrients 2022; 14:3481. [PMID: 36079736 PMCID: PMC9460249 DOI: 10.3390/nu14173481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Current guidelines for the management of childhood wasting primarily focus on the provision of therapeutic foods and the treatment of medical complications. However, many children with wasting live in food-secure households, and multiple studies have demonstrated that the etiology of wasting is complex, including social, nutritional, and biological causes. We evaluated the contribution of household food insecurity, dietary diversity, and the consumption of specific food groups to the time to recovery from wasting after hospital discharge. Methods: We conducted a secondary analysis of the Childhood Acute Illness Network (CHAIN) cohort, a multicenter prospective study conducted in six low- or lower-middle-income countries. We included children aged 6−23 months with wasting (mid-upper arm circumference [MUAC] ≤ 12.5 cm) or kwashiorkor (bipedal edema) at the time of hospital discharge. The primary outcome was time to nutritional recovery, defined as a MUAC > 12.5 cm without edema. Using Cox proportional hazards models adjusted for age, sex, study site, HIV status, duration of hospitalization, enrollment MUAC, referral to a nutritional program, caregiver education, caregiver depression, the season of enrollment, residence, and household wealth status, we evaluated the role of reported food insecurity, dietary diversity, and specific food groups prior to hospitalization on time to recovery from wasting during the 6 months of posthospital discharge. Findings: Of 1286 included children, most participants (806, 63%) came from food-insecure households, including 170 (13%) with severe food insecurity, and 664 (52%) participants had insufficient dietary diversity. The median time to recovery was 96 days (18/100 child-months (95% CI: 17.0, 19.0)). Moderate (aHR 1.17 [0.96, 1.43]) and severe food insecurity (aHR 1.14 [0.88, 1.48]), and insufficient dietary diversity (aHR 1.07 [0.91, 1.25]) were not significantly associated with time to recovery. Children who had consumed legumes and nuts prior to diagnosis had a quicker recovery than those who did not (adjusted hazard ratio (aHR): 1.21 [1.01,1.44]). Consumption of dairy products (aHR 1.13 [0.96, 1.34], p = 0.14) and meat (aHR 1.11 [0.93, 1.33]), p = 0.23) were not statistically significantly associated with time to recovery. Consumption of fruits and vegetables (aHR 0.78 [0.65,0.94]) and breastfeeding (aHR 0.84 [0.71, 0.99]) before diagnosis were associated with longer time to recovery. Conclusion: Among wasted children discharged from hospital and managed in compliance with wasting guidelines, food insecurity and dietary diversity were not major determinants of recovery.
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Affiliation(s)
| | | | | | - Abdoulaye H. Diallo
- Department of Public Health, University Joseph Ki-Zerbo, Ouagadougou 03BP7021, Burkina Faso
| | - Blaise S. Gnoumou
- Department of Public Health, University Joseph Ki-Zerbo, Ouagadougou 03BP7021, Burkina Faso
| | - Roseline M. Bamouni
- Department of Public Health, University Joseph Ki-Zerbo, Ouagadougou 03BP7021, Burkina Faso
| | - Wieger P. Voskuijl
- Amsterdam UMC, University of Amsterdam, Amsterdam Centre for Global Child Health & Emma Children’s Hospital, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Meta van den Heuvel
- Division of Paediatric Medicine, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Emmie Mbale
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Private Bag 360, Chichiri, Blantyre 265, Malawi
| | - Christina L. Lancioni
- Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
| | - Ezekiel Mupere
- Uganda-CWRU Research Collaboration, Kampala P.O. Box 663, Uganda
- Department of Paediatrics and Child Health, Makerere University College of Health Sciences, Kampala P.O. Box 7072, Uganda
| | - John Mukisa
- Uganda-CWRU Research Collaboration, Kampala P.O. Box 663, Uganda
| | | | | | - Mohammod J. Chisti
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka 1212, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka 1212, Bangladesh
| | - Abu S.M.S.B. Shahid
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka 1212, Bangladesh
| | - Ali F. Saleem
- Department of Pediatrics and Child Health, Aga Khan University, Karachi 74800, Pakistan
| | - Zaubina Kazi
- Department of Pediatrics and Child Health, Aga Khan University, Karachi 74800, Pakistan
| | | | - Pholona Amam
- Kenya Medical Research Institute, Nairobi 54840, Kenya
| | - Mary Masheti
- Kenya Medical Research Institute, Nairobi 54840, Kenya
| | - James A. Berkley
- KEMRI/Wellcome Trust Research Programme, Kilifi 80108, Kenya
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi 184742, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
| | - Judd L. Walson
- Departments of Global Health, University of Washington, Seattle, WA 98195, USA
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi 184742, Kenya
| | - Kirkby D. Tickell
- Departments of Global Health, University of Washington, Seattle, WA 98195, USA
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6
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Njunge JM, Tickell K, Diallo AH, Sayeem Bin Shahid ASM, Gazi MA, Saleem A, Kazi Z, Ali S, Tigoi C, Mupere E, Lancioni CL, Yoshioka E, Chisti MJ, Mburu M, Ngari M, Ngao N, Gichuki B, Omer E, Gumbi W, Singa B, Bandsma R, Ahmed T, Voskuijl W, Williams TN, Macharia A, Makale J, Mitchel A, Williams J, Gogain J, Janjic N, Mandal R, Wishart DS, Wu H, Xia L, Routledge M, Gong YY, Espinosa C, Aghaeepour N, Liu J, Houpt E, Lawley TD, Browne H, Shao Y, Rwigi D, Kariuki K, Kaburu T, Uhlig HH, Gartner L, Jones K, Koulman A, Walson J, Berkley J. The Childhood Acute Illness and Nutrition (CHAIN) network nested case-cohort study protocol: a multi-omics approach to understanding mortality among children in sub-Saharan Africa and South Asia. Gates Open Res 2022; 6:77. [PMID: 36415883 PMCID: PMC9646488 DOI: 10.12688/gatesopenres.13635.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2022] [Indexed: 02/15/2024] Open
Abstract
Introduction: Many acutely ill children in low- and middle-income settings have a high risk of mortality both during and after hospitalisation despite guideline-based care. Understanding the biological mechanisms underpinning mortality may suggest optimal pathways to target for interventions to further reduce mortality. The Childhood Acute Illness and Nutrition (CHAIN) Network ( www.chainnnetwork.org) Nested Case-Cohort Study (CNCC) aims to investigate biological mechanisms leading to inpatient and post-discharge mortality through an integrated multi-omic approach. Methods and analysis; The CNCC comprises a subset of participants from the CHAIN cohort (1278/3101 hospitalised participants, including 350 children who died and 658 survivors, and 270/1140 well community children of similar age and household location) from nine sites in six countries across sub-Saharan Africa and South Asia. Systemic proteome, metabolome, lipidome, lipopolysaccharides, haemoglobin variants, toxins, pathogens, intestinal microbiome and biomarkers of enteropathy will be determined. Computational systems biology analysis will include machine learning and multivariate predictive modelling with stacked generalization approaches accounting for the different characteristics of each biological modality. This systems approach is anticipated to yield mechanistic insights, show interactions and behaviours of the components of biological entities, and help develop interventions to reduce mortality among acutely ill children. Ethics and dissemination. The CHAIN Network cohort and CNCC was approved by institutional review boards of all partner sites. Results will be published in open access, peer reviewed scientific journals and presented to academic and policy stakeholders. Data will be made publicly available, including uploading to recognised omics databases. Trial registration NCT03208725.
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Affiliation(s)
- James M. Njunge
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Kirkby Tickell
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - Abdoulaye Hama Diallo
- Department of Public Health, Faculty of Health Sciences, University of Ouagadougou, Ouagadougou, Burkina Faso
| | | | - Md. Amran Gazi
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Ali Saleem
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Zaubina Kazi
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Syed Ali
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Karachi, Pakistan
| | - Caroline Tigoi
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Ezekiel Mupere
- Department of Paediatrics and Child Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | | | - Emily Yoshioka
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - Mohammod Jobayer Chisti
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Moses Mburu
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Moses Ngari
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Narshion Ngao
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Bonface Gichuki
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Elisha Omer
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Wilson Gumbi
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Benson Singa
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Robert Bandsma
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biomedical Sciences, University of Malawi College of Medicine, Blantyre, Malawi
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Wieger Voskuijl
- Amsterdam UMC location, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Centre for Global Child Health & Emma Children’s Hospital, Amsterdam, The Netherlands
| | - Thomas N. Williams
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Institute of Global Health Innovation, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alex Macharia
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | | | | | | | | | | | - Rupasri Mandal
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - David S. Wishart
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Hang Wu
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Lei Xia
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Michael Routledge
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yun Yun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Camilo Espinosa
- Departments of Anesthesiology, Pain, and Perioperative Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Nima Aghaeepour
- Departments of Anesthesiology, Pain, and Perioperative Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jie Liu
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Eric Houpt
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Yan Shao
- Wellcome Sanger Institute, Hinxton, UK
| | - Doreen Rwigi
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Kevin Kariuki
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Timothy Kaburu
- The Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Holm H. Uhlig
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
- Department of Paediatrics and Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Lisa Gartner
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kelsey Jones
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Gastroenterology Department, Great Ormond Street Hospital for Children, London, UK
| | - Albert Koulman
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
- NIHR BRC Nutritional Biomarker Laboratory, University of Cambridge, Cambridge, UK
| | - Judd Walson
- Global Health and Epidemiology, University of Washington, Seattle, Seattle, USA
| | - James Berkley
- The Childhood Acute Illness and Nutrition Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Center for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
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7
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Diallo AH, Sayeem Bin Shahid ASM, Khan AF, Saleem AF, Singa BO, Gnoumou BS, Tigoi C, Otieno CA, Bourdon C, Oduol CO, Lancioni CL, Manyasi C, McGrath CJ, Maronga C, Lwanga C, Brals D, Ahmed D, Mondal D, Denno DM, Mangale DI, Chimezi E, Mbale E, Mupere E, Mamun GMS, Ouedraogo I, Berkley JA, Njirammadzi J, Mukisa J, Thitiri J, Carreon JD, Walson JL, Jemutai J, Tickell KD, Shahrin L, Mallewa M, Hossain MI, Chisti MJ, Timbwa M, Mburu M, Ngari MM, Ngao N, Aber P, Harawa PP, Sukhtankar P, Bandsma RHJ, Bamouni RM, Molyneux S, Mwaringa S, Shaima SN, Ali SA, Afsana SM, Banu S, Ahmed T, Voskuijl WP, Kazi Z. Childhood mortality during and after acute illness in Africa and south Asia: a prospective cohort study. Lancet Glob Health 2022; 10:e673-e684. [PMID: 35427524 PMCID: PMC9023747 DOI: 10.1016/s2214-109x(22)00118-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/29/2022] [Accepted: 03/04/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Mortality among children with acute illness in low-income and middle-income settings remains unacceptably high and the importance of post-discharge mortality is increasingly recognised. We aimed to explore the epidemiology of deaths among young children with acute illness across sub-Saharan Africa and south Asia to inform the development of interventions and improved guidelines. METHODS In this prospective cohort study, we enrolled children aged 2-23 months with acute illness, stratified by nutritional status defined by anthropometry (ie, no wasting, moderate wasting, or severe wasting or kwashiorkor), who were admitted to one of nine hospitals in six countries across sub-Saharan Africa and south Asia between Nov 20, 2016, and Jan 31, 2019. We assisted sites to comply with national guidelines. Co-primary outcomes were mortality within 30 days of hospital admission and post-discharge mortality within 180 days of hospital discharge. A priori exposure domains, including demographic, clinical, and anthropometric characteristics at hospital admission and discharge, as well as child, caregiver, and household-level characteristics, were examined in regression and survival structural equation models. FINDINGS Of 3101 children (median age 11 months [IQR 7-16]), 1120 (36·1%) had no wasting, 763 (24·6%) had moderate wasting, and 1218 (39·3%) had severe wasting or kwashiorkor. Of 350 (11·3%) deaths overall, 234 (66·9%) occurred within 30 days of hospital admission and 168 (48·0%) within 180 days of hospital discharge. 90 (53·6%) post-discharge deaths occurred at home. The proportion of children who died following discharge was relatively preserved across nutritional strata. Numerically large high-risk and low-risk groups could be disaggregated for early mortality and post-discharge mortality. Structural equation models identified direct pathways to mortality and multiple socioeconomic, clinical, and nutritional domains acting indirectly through anthropometric status. INTERPRETATION Among diverse sites in Africa and south Asia, almost half of mortality occurs following hospital discharge. Despite being highly predictable, these deaths are not addressed in current guidelines. A fundamental shift to a child-centred, risk-based approach to inpatient and post-discharge management is needed to further reduce childhood mortality, and clinical trials of these approaches with outcomes of mortality, readmission, and cost are warranted. FUNDING The Bill & Melinda Gates Foundation.
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8
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Underwood ML, Park B, Uebelhoer LS, Gu G, Kunkel LE, Korthuis PT, Cook RR, Sekaly RP, Ribeiro SP, Lancioni CL. Chronic Alcohol Exposure Among People Living with HIV Is Associated with Innate Immune Activation and Alterations in Monocyte Phenotype and Plasma Cytokine Profile. Front Immunol 2022; 13:867937. [PMID: 35371104 PMCID: PMC8971672 DOI: 10.3389/fimmu.2022.867937] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/23/2022] [Indexed: 12/25/2022] Open
Abstract
Despite advances in antiretroviral therapy, chronic immune activation continues to be observed among individuals with well-controlled HIV viral loads, and is associated with non-AIDS defining morbidities among people living with HIV. Alcohol use disorder impacts a significant proportion of individuals living with HIV, and alcohol exposure is known to damage the intestinal epithelium which may increase translocation of pathogens and their molecular products, driving systemic immune activation and dysregulation. The aim of this study was to determine if adults living with HIV with well-controlled viral loads, who also suffer from alcohol use disorder with and without hepatitis C virus co-infection (n=23), exhibit evidence of advanced systemic immune activation, intestinal damage, and microbial translocation, as compared to adults living with HIV who are not exposed to chronic alcohol or other substances of abuse (n=29). The impact of a 1-month intervention to treat alcohol-use disorder was also examined. Alcohol-use disorder was associated with evidence of advanced innate immune activation, alterations in monocyte phenotype including increased expression of Toll-like receptor 4, increased burden of stimulatory ligands for Toll-like receptor 4, and alterations in plasma cytokine signature, most notably elevations in soluble CD40 ligand and transforming growth factor beta. Alcohol-associated immune activation was more pronounced among individuals with hepatitis C virus co-infection. Although the 1-month intervention to treat alcohol use disorder did not result in significant reductions in the interrogated indicators of immune activation, our findings suggest that chronic alcohol exposure is a major modifiable risk factor for chronic immune activation and dysregulation among people-living with HIV.
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Affiliation(s)
- Michelle L. Underwood
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Byung Park
- Knight-Cancer Institute, Department of Biostatistics, Oregon Health & Science University, Portland, OR, United States
| | - Luke S. Uebelhoer
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Geoffrey Gu
- Undergraduate Studies, University of Southern California, Los Angeles, CA, United States
| | - Lynn E. Kunkel
- Department of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Philip T. Korthuis
- Department of Medicine, Oregon Health & Science University, Portland, OR, United States
- Department of Public Health, Oregon Health & Science University, Portland, OR, United States
| | - Ryan R. Cook
- Department of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Rafick Pierre Sekaly
- Department of Pathology & Translational Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Susan Pereira Ribeiro
- Department of Pathology & Translational Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Christina L. Lancioni
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
- *Correspondence: Christina L. Lancioni,
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9
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Uebelhoer LS, Gwela A, Thiel B, Nalukwago S, Mukisa J, Lwanga C, Getonto J, Nyatichi E, Dena G, Makazi A, Mwaringa S, Mupere E, Berkley JA, Lancioni CL. Toll-Like Receptor-Induced Immune Responses During Early Childhood and Their Associations With Clinical Outcomes Following Acute Illness Among Infants in Sub-Saharan Africa. Front Immunol 2022; 12:748996. [PMID: 35185860 PMCID: PMC8850627 DOI: 10.3389/fimmu.2021.748996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/28/2021] [Indexed: 12/12/2022] Open
Abstract
Severely ill children in low- and middle-income countries (LMICs) experience high rates of mortality from a broad range of infectious diseases, with the risk of infection-related death compounded by co-existing undernutrition. How undernutrition and acute illness impact immune responses in young children in LMICs remains understudied, and it is unclear what aspects of immunity are compromised in this highly vulnerable population. To address this knowledge gap, we profiled longitudinal whole blood cytokine responses to Toll-like receptor (TLR) ligands among severely ill children (n=63; 2-23 months old) with varied nutritional backgrounds, enrolled in the CHAIN Network cohort from Kampala, Uganda, and Kilifi, Kenya, and compared these responses to similar-aged well children in local communities (n=41). Cytokine responses to ligands for TLR-4 and TLR-7/8, as well as Staphylococcus enterotoxin B (SEB), demonstrated transient impairment in T cell function among acutely ill children, whereas innate cytokine responses were exaggerated during both acute illness and following clinical recovery. Nutritional status was associated with the magnitude of cytokine responses in all stimulated conditions. Among children who died following hospital discharge or required hospital re-admission, exaggerated production of interleukin-7 (IL-7) to all stimulation conditions, as well as leukopenia with reduced lymphocyte and monocyte counts, were observed. Overall, our findings demonstrate exaggerated innate immune responses to pathogen-associated molecules among acutely ill young children that persist during recovery. Heightened innate immune responses to TLR ligands may contribute to chronic systemic inflammation and dysregulated responses to subsequent infectious challenges. Further delineating mechanisms of innate immune dysregulation in this population should be prioritized to identify novel interventions that promote immune homeostasis and improve outcomes.
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Affiliation(s)
- Luke S. Uebelhoer
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Agnes Gwela
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Bonnie Thiel
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, OH, United States
| | - Sophie Nalukwago
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - John Mukisa
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Christopher Lwanga
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | | | | | - Grace Dena
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | | | | | - Ezekiel Mupere
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
- Department of Pediatrics and Child Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - James A. Berkley
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine & Global Health, University of Oxford, Oxford, United Kingdom
| | - Christina L. Lancioni
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
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10
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Napier RJ, Lee EJ, Davey MP, Vance EE, Furtado JM, Snow PE, Samson KA, Lashley SJ, Brown BR, Horai R, Mattapallil MJ, Xu B, Callegan MC, Uebelhoer LS, Lancioni CL, Vehe RK, Binstadt BA, Smith JR, Caspi RR, Rosenzweig HL. T cell-intrinsic role for Nod2 in protection against Th17-mediated uveitis. Nat Commun 2020; 11:5406. [PMID: 33106495 PMCID: PMC7589501 DOI: 10.1038/s41467-020-18961-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/20/2020] [Indexed: 12/21/2022] Open
Abstract
Mutations in nucleotide-binding oligomerization domain-containing protein 2 (NOD2) cause Blau syndrome, an inflammatory disorder characterized by uveitis. The antimicrobial functions of Nod2 are well-established, yet the cellular mechanisms by which dysregulated Nod2 causes uveitis remain unknown. Here, we report a non-conventional, T cell-intrinsic function for Nod2 in suppression of Th17 immunity and experimental uveitis. Reconstitution of lymphopenic hosts with Nod2-/- CD4+ T cells or retina-specific autoreactive CD4+ T cells lacking Nod2 reveals a T cell-autonomous, Rip2-independent mechanism for Nod2 in uveitis. In naive animals, Nod2 operates downstream of TCR ligation to suppress activation of memory CD4+ T cells that associate with an autoreactive-like profile involving IL-17 and Ccr7. Interestingly, CD4+ T cells from two Blau syndrome patients show elevated IL-17 and increased CCR7. Our data define Nod2 as a T cell-intrinsic rheostat of Th17 immunity, and open new avenues for T cell-based therapies for Nod2-associated disorders such as Blau syndrome.
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Affiliation(s)
- Ruth J Napier
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Ellen J Lee
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Michael P Davey
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Emily E Vance
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - João M Furtado
- Division of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, Butanta, Ribeirão Preto, Brazil
| | - Paige E Snow
- Department of Public Health, Oregon Health and Science University, Portland, OR, 97239, USA
| | | | - Sydney J Lashley
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | | | - Reiko Horai
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | | | - Biying Xu
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | - Michelle C Callegan
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma, OK, 73104, USA.,Dean A. McGee Institute, Oklahoma City, OK, 73104, USA
| | - Luke S Uebelhoer
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Christina L Lancioni
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Richard K Vehe
- Department of Pediatrics, University of Minnesota and the University of Minnesota Masonic Children's Hospital, Minneapolis, MN, 55455, USA
| | - Bryce A Binstadt
- Department of Pediatrics, University of Minnesota and the University of Minnesota Masonic Children's Hospital, Minneapolis, MN, 55455, USA.,Center for Immunology and Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Justine R Smith
- College of Medicine and Public Health, Flinders University, Adelaide, SA, 5042, Australia
| | - Rachel R Caspi
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | - Holly L Rosenzweig
- VA Portland Health Care System, Portland, OR, 97239, USA. .,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA.
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Underwood ML, Nguyen T, Uebelhoer LS, Kunkel LE, Korthuis PT, Lancioni CL. Altered monocyte phenotype and dysregulated innate cytokine responses among people living with HIV and opioid-use disorder. AIDS 2020; 34:177-188. [PMID: 31687981 PMCID: PMC6948804 DOI: 10.1097/qad.0000000000002416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Supplemental Digital Content is available in the text Background: Opioid-use disorders (OUD) and hepatitis C or B co-infection (HEP) are common among people living with HIV (PLHIV). The impact of OUD on innate and adaptive immunity among PLHIV with and without HEP is unknown. Objectives: To investigate the impact of OUD on monocyte and T-cell phenotypes, cytokine responses to lipopolysaccharide (LPS) and phytohemagglutinin (PHA), and plasma inflammatory markers, among PLHIV with and without HEP. Methods: Cross-sectional study enrolling PLHIV receiving ART, with and without OUD. Flow cytometry determined monocyte and T-cell phenotypes; LPS and PHA-induced cytokine production was assessed following LPS and PHA stimulation by multiplex cytokine array; plasma IL-6, soluble CD163, and soluble CD14 were measured by ELISA. Results: Twenty-two PLHIV with OUD and 37 PLHIV without OUD were included. PLHIV with OUD exhibited higher frequencies of intermediate (CD14++CD16+) and nonclassical (CD14dimCD16+) monocytes when compared with PLHIV without OUD (P = 0.0025; P = 0.0001, respectively), regardless of HEP co-infection. Soluble CD163 and monocyte cell surface CD163 expression was increased among PLHIV with OUD and HEP, specifically. Regardless of HEP co-infection, PLHIV with OUD exhibited reduced production of IL-10, IL-8, IL-6, IL-1alpha, and TNF-alpha in response to LPS when compared with PLHIV without OUD; PHA-induced production of IL-10, IL-1alpha, IL-1beta, IL-6, and TNF-alpha were also reduced among individuals with OUD. Conclusion: OUD among PLHIV are associated with altered monocyte phenotypes and a dysregulated innate cytokine response. Defining underlying mechanisms of opioid-associated innate immune dysregulation among PLHIV should be prioritized to identify optimal OUD treatment strategies.
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Stein CM, Zalwango S, Malone LL, Thiel B, Mupere E, Nsereko M, Okware B, Kisingo H, Lancioni CL, Bark CM, Whalen CC, Joloba ML, Boom WH, Mayanja-Kizza H. Resistance and Susceptibility to Mycobacterium tuberculosis Infection and Disease in Tuberculosis Households in Kampala, Uganda. Am J Epidemiol 2018; 187:1477-1489. [PMID: 29304247 DOI: 10.1093/aje/kwx380] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 12/15/2017] [Indexed: 11/14/2022] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains a major public health problem. Household contact studies identify children and adults along the spectrum from Mtb exposure to disease. In the Kawempe Community Health Study (conducted in Kampala, Uganda), 872 culture-confirmed pulmonary TB cases and their 2,585 contacts were enrolled during 2002-2012 and followed for up to 2 years each. Risk factors identified by time-to-event analysis for secondary TB differed among children, women, and men. Younger age (P = 0.0061), human immunodeficiency virus (HIV) (P = 0.0002), thinness (P = 0.01), absent bacille Calmette-Guérin vaccination (P = 0.002), and epidemiologic risk score (P < 0.0001) were risks for children. For women, risks were HIV (P < 0.0001), thinness (World Health Organization criteria; P < 0.0001), and epidemiologic risk score (P = 0.003). For men, HIV (P = 0.0007) and low body mass index (P = 0.008) resulted in faster progression to TB. Tuberculin skin testing (TST) identified contacts with Mtb infection and those with persistently negative TST. Risks for faster time to Mtb infection were identified, and included age (P = 0.0007), baseline TST induration (P < 0.0001), and epidemiologic risk score (P < 0.0001) only in children. Those with persistently negative TST comprised 10% of contacts but had no unique epidemiologic characteristics among adults. The burden of Mtb infection and disease is high in TB households, and risk factors for progression from exposure to infection and disease differ among children, women, and men.
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Affiliation(s)
- Catherine M Stein
- Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio
- Center for Proteomics and Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, Ohio
- Tuberculosis Research Unit, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | | | - LaShaunda L Malone
- Tuberculosis Research Unit, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Bonnie Thiel
- Tuberculosis Research Unit, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Ezekiel Mupere
- Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio
- Departments of Pediatrics and Child Health, and Medicine, School of Medicine, Makerere University and Mulago Hospital, Kampala, Uganda
| | - Mary Nsereko
- Uganda-CWRU Research Collaboration, Kampala, Uganda
| | | | | | | | - Charles M Bark
- Tuberculosis Research Unit, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Christopher C Whalen
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, Georgia
| | - Moses L Joloba
- School for Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda
| | - W Henry Boom
- Tuberculosis Research Unit, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Harriet Mayanja-Kizza
- Departments of Pediatrics and Child Health, and Medicine, School of Medicine, Makerere University and Mulago Hospital, Kampala, Uganda
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13
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Affiliation(s)
- Luke S Uebelhoer
- Department of Pediatrics, Oregon Health & Science University, Portland, OR
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14
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Nalukwago S, Lancioni CL, Oketcho JB, Canaday DHE, Boom WH, Ojok L, Mayanja-Kizza H. The effect of interrupted anti-retroviral treatment on the reconstitution of memory and naive T cells during tuberculosis treatment in HIV patients with active pulmonary tuberculosis. Afr Health Sci 2017; 17:954-962. [PMID: 29937865 PMCID: PMC5870287 DOI: 10.4314/ahs.v17i4.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The reconstitution of cellular immune components contributes to clinical outcome of HIV and Mycobacterium tuberculosis (MTB) infection. Interruption of anti-retroviral therapy (ART) could lead to perturbations in reconstitution of T cells in HIV/ tuberculosis (TB) patients. OBJECTIVES To ascertain the effect of interrupted ART on reconstitution of CD4+ and CD8+ T sub-sets in TB patients. METHODS Participants with HIV (CD4>350 cells/µL) and TB were recruited under a larger phase 3 open label randomised controlled clinical trial. The CD45RO and CD62L markers were measured on CD4+ and CD8+ cells by flow cytometry. Samples were analysed at baseline, 3, 6, 12 months. RESULTS There was a significant increase of naive CD8+ cells (p = 0.003) and a decrease in effector CD8+ cells (p = 0.004) among participants in ART/TB treatment arm during the first 6 months. Withdrawing ART led to naive CD8+ cells reduction (p=0.02) to values close to baseline. An increase of naive CD8+ cells after 6 months of TB treatment in TB alone treatment arm (p=0.01) was observed. A trend towards increment of naive CD4+ sub sets in either treatment arms was observed. CONCLUSION Interrupting ART alters CD8+ but not CD4+ sub-sets in patients with less advanced HIV infection and TB.
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Affiliation(s)
| | - Christina L Lancioni
- Department of Paediatric infectious diseases, Oregon Health Sciences University, Portland Oregon
| | | | - Dave H e Canaday
- Division of Infectious Diseases, Case Western Reserve University
- Getriatric Research Center Clinical Core, Louis Stoves Cleveland VA Medicine Center
| | - W Henry Boom
- Division of Infectious Diseases, Case Western Reserve University
| | - Lonzy Ojok
- Department of pathology, Makerere University College of Veterinary Medicine, Animal resources and biosecurity, Kampala, Uganda
| | - Harriet Mayanja-Kizza
- School of Medicine, Makerere University College of Health Sciences, Mulago Hospital, Kampala, Uganda
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15
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Sinnott BD, Park B, Boer MC, Lewinsohn DA, Lancioni CL. Direct TLR-2 Costimulation Unmasks the Proinflammatory Potential of Neonatal CD4+ T Cells. J Immunol 2016; 197:68-77. [PMID: 27194790 DOI: 10.4049/jimmunol.1501297] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 04/28/2016] [Indexed: 12/11/2022]
Abstract
Neonatal CD4(+) T cells have traditionally been viewed as deficient in their capacity to produce Th1 cytokines in response to polyclonal or Ag-specific stimuli. Thus, defining unique aspects of CD4(+) T cell activation and development into Th1 effector cells in neonates is essential to the successful development of novel vaccines and immunotherapies to protect infants from intracellular pathogens. Using highly purified naive CD4(+) T cells derived from cord and adult peripheral blood, we compared the impact of anti-CD3 stimulation plus costimulation through TLR-2 performed in the absence of APC on CD4(+) T cell cytokine production, proliferation, and expression of activation markers. In both age groups, TLR-2 costimulation elicited activation of naive CD4(+) T cells, characterized by robust production of IL-2 as well as key Th1-type cytokines IFN-γ and TNF-α. TLR-2 costimulation also dramatically reduced naive T cell production of the immunosuppressive cytokine IL-10. We observed that neonatal naive CD4(+) T cells are uniquely sensitive to TLR-2-mediated costimulation, which enabled them to produce equivalent amounts of IFN-γ and more IL-2 when compared with adult responses. Thus, neonatal CD4(+) T cells have a distinctive propensity to use TLR-2-mediated costimulation for development into proinflammatory Th1 effectors, and interventions that target CD4(+) T cell TLR-2-mediated responses may be exploited to enhance neonatal adaptive immunity.
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Affiliation(s)
- Brian D Sinnott
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239; and
| | - Byung Park
- Division of Biostatistics, Department of Public Health and Preventive Medicine, Oregon Health & Science University, Portland, OR 97239
| | - Mardi C Boer
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239; and
| | - Deborah A Lewinsohn
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239; and
| | - Christina L Lancioni
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239; and
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16
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Johnson DF, Malone LL, Zalwango S, Mukisa Oketcho J, Chervenak KA, Thiel B, Mayanja-Kizza H, Stein CM, Boom WH, Lancioni CL. Tuberculin skin test reversion following isoniazid preventive therapy reflects diversity of immune response to primary Mycobacterium tuberculosis infection. PLoS One 2014; 9:e96613. [PMID: 24796677 PMCID: PMC4010490 DOI: 10.1371/journal.pone.0096613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 04/10/2014] [Indexed: 12/19/2022] Open
Abstract
RATIONALE Healthy household contacts (HHC) of individuals with Tuberculosis (TB) with Tuberculin Skin Test (TST) conversions are considered to harbor latent Mycobacterium tuberculosis (Mtb), and at risk for TB. The immunologic, clinical, and public health implications of TST reversions that occur following Isoniazid preventive therapy (IPT) remain controversial. OBJECTIVES To measure frequency of TST reversion following IPT, and variation in interferon-gamma (IFN-γ) responses to Mtb, in healthy Ugandan TB HHC with primary Mtb infection evidenced by TST conversion. METHODS Prospective cohort study of healthy, HIV-uninfected, TST-negative TB HHC with TST conversions. Repeat TST was performed 12 months following conversion (3 months following completion of 9 month IPT course) to assess for stable conversion vs. reversion. Whole blood IFN-γ responses to Mtb antigen 85B (MtbA85B) and whole Mtb bacilli (wMtb) were measured in a subset (n = 27 and n = 42, respectively) at enrollment and TST conversion, prior to initiation of IPT. RESULTS Of 122 subjects, TST reversion was noted in 25 (20.5%). There were no significant differences in demographic, clinical, or exposure variables between reverters and stable converters. At conversion, reverters had significantly smaller TST compared to stable converters (13.7 mm vs 16.4 mm, respectively; p = 0.003). At enrollment, there were no significant differences in IFN-γ responses to MtbA85B or wMTB between groups. At conversion, stable converters demonstrated significant increases in IFN-γ responses to Ag85B and wMtb compared to enrollment (p = 0.001, p<0.001, respectively), while there were no significant changes among reverters. CONCLUSIONS TST reversion following IPT is common following primary Mtb infection and associated with unique patterns of Mtb-induced IFN-γ production. We have demonstrated that immune responses to primary Mtb infection are heterogeneous, and submit that prospective longitudinal studies of cell mediated immune responses to Mtb infection be prioritized to identify immune phenotypes protective against development of TB disease.
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Affiliation(s)
- Denise F. Johnson
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, Ohio, United States of America
| | - LaShaunda L. Malone
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Sarah Zalwango
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - Joy Mukisa Oketcho
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - Keith A. Chervenak
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Bonnie Thiel
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Harriet Mayanja-Kizza
- Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda
- Department of Medicine, Makerere University College of Health Science, Kampala, Uganda
| | - Catherine M. Stein
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - W. Henry Boom
- Tuberculosis Research Unit (TBRU), Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Christina L. Lancioni
- Department of Pediatrics, Oregon Health & Science University, Portland, Oregon, United States of America
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17
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Reba SM, Li Q, Onwuzulike S, Ding X, Karim AF, Hernandez Y, Fulton SA, Harding CV, Lancioni CL, Nagy N, Rodriguez ME, Wearsch PA, Rojas RE. TLR2 engagement on CD4(+) T cells enhances effector functions and protective responses to Mycobacterium tuberculosis. Eur J Immunol 2014; 44:1410-21. [PMID: 24497180 PMCID: PMC4112943 DOI: 10.1002/eji.201344100] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 12/19/2013] [Accepted: 01/31/2014] [Indexed: 11/08/2022]
Abstract
We have previously demonstrated that mycobacterial lipoproteins engage TLR2 on human CD4(+) T cells and upregulate TCR-triggered IFN-γ secretion and cell proliferation in vitro. Here we examined the role of CD4(+) T-cell-expressed TLR2 in Mycobacterium tuberculosis (MTB) Ag-specific T-cell priming and in protection against MTB infection in vivo. Like their human counterparts, mouse CD4(+) T cells express TLR2 and respond to TLR2 costimulation in vitro. This Th1-like response was observed in the context of both polyclonal and Ag-specific TCR stimulation. To evaluate the role of T-cell TLR2 in priming of CD4(+) T cells in vivo, naive MTB Ag85B-specific TCR transgenic CD4(+) T cells (P25 TCR-Tg) were adoptively transferred into Tlr2(-/-) recipient C57BL/6 mice that were then immunized with Ag85B and with or without TLR2 ligand Pam3 Cys-SKKKK. TLR2 engagement during priming resulted in increased numbers of IFN-γ-secreting P25 TCR-Tg T cells 1 week after immunization. P25 TCR-Tg T cells stimulated in vitro via TCR and TLR2 conferred more protection than T cells stimulated via TCR alone when adoptively transferred before MTB infection. Our findings indicate that TLR2 engagement on CD4(+) T cells increases MTB Ag-specific responses and may contribute to protection against MTB infection.
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Affiliation(s)
- Scott M Reba
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Qing Li
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Sophia Onwuzulike
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Xuedong Ding
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Ahmad F Karim
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Yeritza Hernandez
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Scott A Fulton
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Clifford V Harding
- Pathology Department, Case Western Reserve University, University
Hospitals, Cleveland, OH, USA
- Center for AIDS Research (CFAR), Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Christina L Lancioni
- Department of Pediatrics, Oregon Health and Science University,
Portland, OR, USA
| | - Nancy Nagy
- Pathology Department, Case Western Reserve University, University
Hospitals, Cleveland, OH, USA
| | - Myriam E Rodriguez
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
| | - Pamela A Wearsch
- Pathology Department, Case Western Reserve University, University
Hospitals, Cleveland, OH, USA
| | - Roxana E Rojas
- Department of Medicine, Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
- Center for AIDS Research (CFAR), Case Western Reserve University,
University Hospitals, Cleveland, OH, USA
- Department of Molecular Biology and Microbiology, Case Western
Reserve University, University Hospitals, Cleveland, OH, USA
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18
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Li Q, Ding X, Thomas JJ, Harding CV, Pecora ND, Ziady AG, Shank S, Boom WH, Lancioni CL, Rojas RE. Rv2468c, a novel Mycobacterium tuberculosis protein that costimulates human CD4+ T cells through VLA-5. J Leukoc Biol 2011; 91:311-20. [PMID: 22158781 DOI: 10.1189/jlb.0711364] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Mtb regulates many aspects of the host immune response, including CD4+ T lymphocyte responses that are essential for protective immunity to Mtb, and Mtb effects on the immune system are paradoxical, having the capacity to inhibit (immune evasion) and to activate (adjuvant effect) immune cells. Mtb regulates CD4+ T cells indirectly (e.g., by manipulation of APC function) and directly, via integrins and TLRs expressed on T cells. We now report that previously uncharacterized Mtb protein Rv2468c/MT2543 can directly regulate human CD4+ T cell activation by delivering costimulatory signals. When combined with TCR stimulation (e.g., anti-CD3), Rv2468c functioned as a direct costimulator for CD4+ T cells, inducing IFN-γ secretion and T cell proliferation. Studies with blocking antibodies and soluble RGD motifs demonstrated that Rv2468c engaged integrin VLA-5 (α5β1) on CD4+ T cells through its FN-like RGD motif. Costimulation by Rv2468c induced phosphorylation of FAKs and Pyk2. These results reveal that by expressing molecules that mimic host protein motifs, Mtb can directly engage receptors on CD4+ T cells and regulate their function. Rv2468c-induced costimulation of CD4+ T cells could have implications for TB immune pathogenesis and Mtb adjuvant effect.
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Affiliation(s)
- Qing Li
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
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19
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Lancioni CL, Mahan CS, Johnson DF, Walusimbi M, Chervenak KA, Nalukwago S, Charlebois E, Havlir D, Mayanja-Kizza H, Whalen CC, Boom WH. Effects of antiretroviral therapy on immune function of HIV-infected adults with pulmonary tuberculosis and CD4+ >350 cells/mm3. J Infect Dis 2011; 203:992-1001. [PMID: 21402550 DOI: 10.1093/infdis/jiq141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV)-tuberculosis coinfection is associated with heightened immune activation, viral replication, and T cell dysfunction. We compared changes in T cell activation and function between patients receiving concurrent treatment for HIV-tuberculosis coinfection and those receiving treatment for tuberculosis alone. METHODS HIV-infected adults with tuberculosis and CD4(+) T cell counts >350 cells/mm(3) were randomized to receive tuberculosis treatment alone (control arm; n = 36) or 6 months of antiretroviral therapy (ART) concurrent with tuberculosis treatment (intervention arm; n = 38). HIV viral load, T cell subsets, T cell activation, and cytokine production were measured at enrollment and every 3 months for 12 months. RESULTS Differences in absolute CD4(+) and CD8(+) T cell counts were not observed between arms. Viral load was reduced while participants received ART; control patients maintained viral load at baseline levels. Both arms had significant reductions in T cell expression of CD38 and HLA-DR. Interferon-γ production in response to mitogen increased significantly in the intervention arm. CONCLUSIONS In HIV-infected adults with tuberculosis and CD4(+) T cell counts >350 cells/mm(3), both tuberculosis treatment and concurrent HIV-tuberculosis treatment reduce T cell activation and stabilize T cell counts. Concurrent ART with tuberculosis treatment does not provide additional, sustained reductions in T cell activation among individuals with preserved immunologic function.
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Affiliation(s)
- Christina L Lancioni
- Division of Pediatric Infectious Disease, Department of Pediatrics, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
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Lancioni CL, Thomas JJ, Rojas RE. Activation requirements and responses to TLR ligands in human CD4+ T cells: comparison of two T cell isolation techniques. J Immunol Methods 2009; 344:15-25. [PMID: 19272393 DOI: 10.1016/j.jim.2009.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2008] [Revised: 02/21/2009] [Accepted: 02/24/2009] [Indexed: 12/31/2022]
Abstract
Direct regulation of T cell function by microbial ligands through Toll-like receptors (TLR) is an emerging area of T cell biology. Currently either immunomagnetic cell sorting (IMACS) or fluorescence-activated cell sorting (FACS), are utilized to isolate T-cell subsets for such studies. However, it is unknown to what extent differences in T cell purity between these isolation techniques influence T cell functional assays. We compared the purity, response to mitogen, activation requirements, and response to TLR ligands between human CD4(+) T cells isolated either by IMACS (IMACS-CD4(+)) or by IMACS followed by FACS (IMACS/FACS-CD4(+)). As expected, IMACS-CD4(+) were less pure than IMACS/FACS-CD4(+) (92.5%+/-1.4% versus 99.7%+/-0.2%, respectively). Consequently, IMACS-CD4(+) proliferated and produced cytokines in response to mitogen alone and had lower activation requirements compared to IMACS/FACS-CD4(+). In addition IMACS-CD4(+) but not IMACS/FACS-CD4(+) responses were upregulated by the TLR-4 ligand lipopolysaccharide (LPS). On the other hand, TLR-2 and TLR-5 engagement induced costimulation in both IMACS-CD4(+) and highly purified IMACS-/FACS-CD4(+). Altogether these results indicate that small differences in cell purity can significantly alter T cell responses to TLR ligands. This study stresses the importance of a stringent purification method when investigating the role of microbial ligands in T cell function.
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Affiliation(s)
- Christina L Lancioni
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Case Western Reserve University & University Hospitals, Cleveland, Ohio 44106, USA.
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