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Wang YM, Huber JF, Flesch L, Demmel K, Lane A, Beebe DW, Crosby LE, Hogenesch JB, Smith DF, Davies SM, Dandoy CE. Trajectory of Sleep, Depression, and Quality of Life in Pediatric HSCT Recipients. Transplant Cell Ther 2024:S2666-6367(24)00316-6. [PMID: 38580095 DOI: 10.1016/j.jtct.2024.03.029] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
Disrupted sleep is commonly reported during hematopoietic stem cell transplant. In this study, we use actigraphy to measure sleep parameters, and qualitative measures of quality of life, depression, and sleep in pediatric and young adult transplant recipients to describe their time course through transplant. Eight patients had evaluable actigraphy data, and 10 patients completed the surveys. The median age of the 6 male and 7 female participants was 13.94 years old. Sleep duration and efficiency measured by actigraphy were suboptimal prior to transplant, then declined to a nadir between Day +7 to +14. Self-reported sleep quality, depression, and quality of life were worst at Day +14 to +30 but improved by Day +100. Findings support efforts to improve sleep, which may improve recovery, mental health and quality of life.
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Affiliation(s)
- YunZu Michele Wang
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - John F Huber
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Laura Flesch
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Patient Services, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kathy Demmel
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Adam Lane
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Dean W Beebe
- University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Lori E Crosby
- University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - John B Hogenesch
- University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David F Smith
- University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Stella M Davies
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Christopher E Dandoy
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio
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2
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Lacombe D, Bloch-Zupan A, Bredrup C, Cooper EB, Houge SD, García-Miñaúr S, Kayserili H, Larizza L, Lopez Gonzalez V, Menke LA, Milani D, Saettini F, Stevens CA, Tooke L, Van der Zee JA, Van Genderen MM, Van-Gils J, Waite J, Adrien JL, Bartsch O, Bitoun P, Bouts AHM, Cueto-González AM, Dominguez-Garrido E, Duijkers FA, Fergelot P, Halstead E, Huisman SA, Meossi C, Mullins J, Nikkel SM, Oliver C, Prada E, Rei A, Riddle I, Rodriguez-Fonseca C, Rodríguez Pena R, Russell J, Saba A, Santos-Simarro F, Simpson BN, Smith DF, Stevens MF, Szakszon K, Taupiac E, Totaro N, Valenzuena Palafoll I, Van Der Kaay DCM, Van Wijk MP, Vyshka K, Wiley S, Hennekam RC. Diagnosis and management in Rubinstein-Taybi syndrome: first international consensus statement. J Med Genet 2024:jmg-2023-109438. [PMID: 38471765 DOI: 10.1136/jmg-2023-109438] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 02/15/2024] [Indexed: 03/14/2024]
Abstract
Rubinstein-Taybi syndrome (RTS) is an archetypical genetic syndrome that is characterised by intellectual disability, well-defined facial features, distal limb anomalies and atypical growth, among numerous other signs and symptoms. It is caused by variants in either of two genes (CREBBP, EP300) which encode for the proteins CBP and p300, which both have a function in transcription regulation and histone acetylation. As a group of international experts and national support groups dedicated to the syndrome, we realised that marked heterogeneity currently exists in clinical and molecular diagnostic approaches and care practices in various parts of the world. Here, we outline a series of recommendations that document the consensus of a group of international experts on clinical diagnostic criteria for types of RTS (RTS1: CREBBP; RTS2: EP300), molecular investigations, long-term management of various particular physical and behavioural issues and care planning. The recommendations as presented here will need to be evaluated for improvements to allow for continued optimisation of diagnostics and care.
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Affiliation(s)
- Didier Lacombe
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de Strasbourg, and Centre de référence des maladies rares orales et dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, and Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U1258, Illkirch, France
| | - Cecilie Bredrup
- Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway
| | - Edward B Cooper
- Department of Anesthesiology, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sofia Douzgou Houge
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway and Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Sixto García-Miñaúr
- Instituto de Genética Médica y Molecular (INGEMM), Hospital Universitario La Paz, Madrid, Spain
| | - Hülya Kayserili
- Department of Medical Genetics, Koc University School of Medicine (KUSOM), 34010 Istanbul, Turkey
| | - Lidia Larizza
- Laboratorio di Ricerca in Citogenetica medica e Genetica Molecolare, Centro di Ricerche e Tecnologie Biomediche IRCCS-Istituto Auxologico Italiano, Milano, Italy
| | - Vanesa Lopez Gonzalez
- Department of Pediatrics, Medical Genetics Section, Virgen de la Arrixaca University Hospital, IMIB, CIBERER, Murcia, Spain
| | - Leonie A Menke
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Donatella Milani
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Francesco Saettini
- Fondazione Matilde Tettamanti Menotti De Marchi Onlus, Fondazione Monza e Brianza per il Bambino e la sua Mamma, Monza, Italy
| | - Cathy A Stevens
- Department of Pediatrics, University of Tennessee College of Medicine, Chattanooga, Tennessee, USA
| | - Lloyd Tooke
- Department of Pediatrics, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Jill A Van der Zee
- Department of Pediatric Urology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Maria M Van Genderen
- Bartiméus Diagnostic Center for complex visual disorders, Zeist and Department of Ophthalmology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Julien Van-Gils
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Jane Waite
- School of Psychology, College of Health and Life Sciences, Aston University, Birmingham, UK
| | - Jean-Louis Adrien
- Université de Paris, Laboratoire de Psychopathologie et Processus de Santé, Boulogne Billancourt, France
| | - Oliver Bartsch
- MVZ - Humangenetik, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Pierre Bitoun
- Département de Genetique, SIDVA 91, Juvisy-sur-Orge, France
| | - Antonia H M Bouts
- Department of Pediatric Nephrology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Anna M Cueto-González
- Department of Clinical and Molecular Genetics, University Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | | | - Floor A Duijkers
- Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Patricia Fergelot
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Elizabeth Halstead
- Psychology and Human Development Department, University College London, London, UK
| | - Sylvia A Huisman
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Zodiak, Prinsenstichting, Purmerend, Netherlands
| | - Camilla Meossi
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Jo Mullins
- Rubinstein-Taybi Syndrome Support Group, Registered Charity, Rickmansworth, UK
| | - Sarah M Nikkel
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Chris Oliver
- School of Psychology, University of Birmingham, Edgbaston, UK
| | - Elisabetta Prada
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Alessandra Rei
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | - Ilka Riddle
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | | | | | - Janet Russell
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | | | - Fernando Santos-Simarro
- Unit of Molecular Diagnostics and Clinical Genetics, Hospital Universitari Son Espases, Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Brittany N Simpson
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, Cincinnati School of Medicine, Cincinnati, Ohio, USA
| | - David F Smith
- Department of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, and Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Markus F Stevens
- Department of Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Katalin Szakszon
- Institution of Pediatrics, University of Debrecen Clinical Centre, Debrecen, Hungary
| | - Emmanuelle Taupiac
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Nadia Totaro
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | - Irene Valenzuena Palafoll
- Department of Clinical and Molecular Genetics, University Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Daniëlle C M Van Der Kaay
- Division of Paediatric Endocrinology, Department of Paediatrics, Erasmus University Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Michiel P Van Wijk
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University Amsterdam, Amsterdam, Netherlands
| | - Klea Vyshka
- European Reference Network on Rare Congenital Malformations and Rare Intellectual Disability (ERN-ITHACA), Robert Debré University Hospital, Paris, France
| | - Susan Wiley
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Raoul C Hennekam
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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Khan MTF, Smith DF, Schuler CL, Witter AM, DiFrancesco MW, Armoni Domany K, Amin RS, Hossain MM. Circadian blood pressure dysregulation in children with obstructive sleep apnea. Sleep 2024; 47:zsad254. [PMID: 38092705 PMCID: PMC10851857 DOI: 10.1093/sleep/zsad254] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/14/2023] [Indexed: 02/09/2024] Open
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) adversely affects normal blood pressure (BP) and may disrupt circadian BP patterns. We sought to examine 24-hour circadian BP rhythms in children with OSA and healthy controls. METHODS Children 5-14 years with OSA and healthy controls underwent 24-hour BP monitoring and actigraphy to quantify sleep. Shape invariant statistical models compared circadian BP patterns (e.g. times of BP peaks, time arrived at peak BP velocity [TAPV]) in the OSA and control groups. RESULTS The analytic sample included 219 children (mild OSA: n = 52; moderate-to-severe OSA (MS-OSA): n = 50; controls: n = 117). In the morning, the MS-OSA group had earlier TAPV for DBP than controls (51 minutes, p < 0.001). TAPV in the evening was earlier for the MS-OSA group than controls (SBP: 95 minutes, p < 0.001; DBP: 28 minutes, p = 0.028). At mid-day, SBP and DBP velocity nadirs were earlier for the MS-OSA group than controls (SBP: 57 minutes, p < 0.001; DBP: 38 minutes, p < 0.01). The MS-OSA group reached most BP values significantly earlier than controls; the largest differences were 118 minutes (SBP) and 43 minutes (DBP) (p < 0.001). SBP and DBP were elevated in the MS-OSA group (hours 18-21 and 7--12, respectively, p < 0.01) compared to controls. The MS-OSA group was prone to "non-dipping" compared to controls (SBP: odds ratio [OR] = 2.16, 95% CI: 1.09, 4.29; DBP: OR = 3.45, 95% CI: 1.21, 10.23). CONCLUSIONS Children with MS-OSA had changes in circadian BP patterns, namely earlier TAPV and BP peaks and nadirs than controls. Circadian disturbances in BP rhythms may be key to mapping the natural history of BP dysregulation in children with OSA.
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Affiliation(s)
- Md Tareq Ferdous Khan
- Division of Biostatistics and Bioinformatics, Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Mathematics and Statistics, Cleveland State University, Cleveland, OH, USA
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- The Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Otolaryngology–Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Christine L Schuler
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Division of Hospital Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Abigail M Witter
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Mark W DiFrancesco
- The Imaging Research Center, Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Keren Armoni Domany
- Pediatric Pulmonology Unit, Wolfson Medical Center, Holon, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Raouf S Amin
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Md Monir Hossain
- Division of Biostatistics and Bioinformatics, Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
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Koritala BSC, Gaspar LS, Bhadri SS, Massie KS, Lee YY, Paulose J, Smith DF. Murine Pro-Inflammatory Responses to Acute and Sustained Intermittent Hypoxia: Implications for Obstructive Sleep Apnea Research. Laryngoscope 2024; 134 Suppl 4:S1-S11. [PMID: 37540033 PMCID: PMC10838350 DOI: 10.1002/lary.30915] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/05/2023] [Accepted: 07/14/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVES Obstructive sleep apnea (OSA) is characterized by chronic systemic inflammation; however, the mechanisms underlying these pathologic consequences are incompletely understood. Our objective was to determine the effects of short- versus long-term exposure to intermittent hypoxia (IH) on pro-inflammatory mediators within vulnerable organs impacted by OSA. STUDY DESIGN Experimental animal study. METHODS A total of 8-10 week old C57BL/6J mice were exposed to normoxic or IH conditions for 7 days (short-term) or 6 weeks (long-term) under 12 h light, 12 h dark cycles. After exposure, multiple tissues were collected over a 24 h period. These tissues were processed and evaluated for gene expression and protein levels of pro-inflammatory mediators from peripheral tissues. RESULTS We observed a global decrease in immune response pathways in the heart, lung, and liver compared with other peripheral organs after short-term exposure to IH. Although there were tissue-specific alterations in the gene expression of pro-inflammatory mediators, with down-regulation in the lung and up-regulation in the heart, we also observed reduced protein levels of pro-inflammatory mediators in the serum, lung, and heart following short-term exposure to IH. Long-term exposure to IH resulted in an overall increase in the levels of inflammatory mediators in the serum, lung, and heart. CONCLUSIONS We demonstrated novel, longitudinal changes in the inflammatory cascade in a mouse model of OSA. The duration of exposure to IH led to significant variability of inflammatory responses within blood and cardiopulmonary tissues. Our findings further elucidate how inflammatory responses change over the course of the disease in vulnerable organs. LEVEL OF EVIDENCE NA Laryngoscope, 134:S1-S11, 2024.
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Affiliation(s)
- Bala S. C. Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Laetitia S. Gaspar
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Shweta S. Bhadri
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kyla S. Massie
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- University of California San Diego, San Diego, California, 92093, USA
| | - Yin Yeng Lee
- Department of Pediatrics, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Jiffin Paulose
- Department of Pediatrics, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - David F. Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
- Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
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5
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Witt RM, Byars KC, Decker K, Dye TJ, Riley JM, Simmons D, Smith DF. Current Considerations in the Diagnosis and Treatment of Circadian Rhythm Sleep-Wake Disorders in Children. Semin Pediatr Neurol 2023; 48:101091. [PMID: 38065634 PMCID: PMC10710539 DOI: 10.1016/j.spen.2023.101091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/15/2023] [Accepted: 09/29/2023] [Indexed: 12/18/2023]
Abstract
Circadian Rhythm Sleep-Wake Disorders (CRSWDs) are important sleep disorders whose unifying feature is a mismatch between the preferred or required times for sleep and wakefulness and the endogenous circadian drives for these. Their etiology, presentation, and treatment can be different in pediatric patients as compared to adults. Evaluation of these disorders must be performed while viewed through the lens of a patient's comorbid conditions. Newer methods of assessment promise to provide greater diagnostic clarity and critical insights into how circadian physiology affects overall health and disease states. Effective clinical management of CRSWDs is multimodal, requiring an integrated approach across disciplines. Therapeutic success depends upon appropriately timed nonpharmacologic and pharmacologic interventions. A better understanding of the genetic predispositions for and causes of CRSWDs has led to novel clinical opportunities for diagnosis and improved therapeutics.
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Affiliation(s)
- Rochelle M Witt
- Division of Child Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Kelly C Byars
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Kristina Decker
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Thomas J Dye
- Division of Child Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Jessica M Riley
- Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Danielle Simmons
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - David F Smith
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Otolaryngology- Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH.
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6
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Lam DJ, Friedman NR, Chan KC, Kirkham EM, Smith DF, Benedek P, Boudewyns A. Development and validation of the international pediatric sleep endoscopy scale (IPSES). Int J Pediatr Otorhinolaryngol 2023; 174:111748. [PMID: 37820572 DOI: 10.1016/j.ijporl.2023.111748] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVES To develop and validate a consensus international pediatric sleep endoscopy scale (IPSES) for pediatric drug-induced sleep endoscopy (DISE). METHODS Existing published DISE ratings scales were reviewed in order to develop a consensus rating scale synthesizing the most common features and adding new elements to address areas of controversy. Samples of 30 de-identified DISE video recordings were reviewed to develop and refine the scale. After the consensus scale was defined, a separate sample of 25 de-identified DISE videos were scored with the new consensus scale by the development group and a panel of independent raters. A weighted kappa statistic was used to quantify the inter-rater and intra-rater reliability of the consensus scale at each anatomic level. RESULTS Among all raters, intra-rater reliability was most variable for the nasal airway (kappa range 0.33-0.94) and best for the lateral oropharynx (kappa range 0.68-0.95). Inter-rater reliability ranged from 0.43 for the nasal airway to 0.57 at the soft palate. CONCLUSION The IPSES is a reliable consensus scale that reflects the most common features of existing scales and can be adopted as a universal scoring scale for pediatric DISE.
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Affiliation(s)
- Derek J Lam
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, OR, 97239, USA.
| | - Norman R Friedman
- Pediatric Otolaryngology, Children's Hospital of Colorado (CHCO), Department of Otolaryngology-Head and Neck Surgery, University of Colorado, Anschutz Medical Campus, USA
| | - Kate C Chan
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Erin M Kirkham
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Ann Arbor, MI, USA
| | - David F Smith
- Department of Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital, Cincinnati, OH, 45229, USA
| | - Palma Benedek
- Division of Sleep Laboratory and Sleep Surgery, Heim Pal National Pediatric Institute, Budapest, Hungary
| | - An Boudewyns
- Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium; Faculty of Medicine and Translational Neurosciences, University of Antwerp, Antwerp, Belgium
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7
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Koritala BSC, Lee YY, Gaspar LS, Bhadri SS, Su W, Wu G, Francey LJ, Ruben MD, Gong MC, Hogenesch JB, Smith DF. Obstructive sleep apnea in a mouse model is associated with tissue-specific transcriptomic changes in circadian rhythmicity and mean 24-hour gene expression. PLoS Biol 2023; 21:e3002139. [PMID: 37252926 DOI: 10.1371/journal.pbio.3002139] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 04/25/2023] [Indexed: 06/01/2023] Open
Abstract
Intermittent hypoxia (IH) is a major clinical feature of obstructive sleep apnea (OSA). The mechanisms that become dysregulated after periods of exposure to IH are unclear, particularly in the early stages of disease. The circadian clock governs a wide array of biological functions and is intimately associated with stabilization of hypoxia-inducible factors (HIFs) under hypoxic conditions. In patients, IH occurs during the sleep phase of the 24-hour sleep-wake cycle, potentially affecting their circadian rhythms. Alterations in the circadian clock have the potential to accelerate pathological processes, including other comorbid conditions that can be associated with chronic, untreated OSA. We hypothesized that changes in the circadian clock would manifest differently in those organs and systems known to be impacted by OSA. Using an IH model to represent OSA, we evaluated circadian rhythmicity and mean 24-hour expression of the transcriptome in 6 different mouse tissues, including the liver, lung, kidney, muscle, heart, and cerebellum, after a 7-day exposure to IH. We found that transcriptomic changes within cardiopulmonary tissues were more affected by IH than other tissues. Also, IH exposure resulted in an overall increase in core body temperature. Our findings demonstrate a relationship between early exposure to IH and changes in specific physiological outcomes. This study provides insight into the early pathophysiological mechanisms associated with IH.
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Affiliation(s)
- Bala S C Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Yin Yeng Lee
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Laetitia S Gaspar
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Shweta S Bhadri
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Wen Su
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky, United States of America
| | - Gang Wu
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Lauren J Francey
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Marc D Ruben
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Ming C Gong
- Department of Physiology, University of Kentucky, Lexington, Kentucky, United States of America
| | - John B Hogenesch
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- The Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- The Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
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8
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Li C, Kou YF, DeMarcantonio MA, Heubi CH, Fleck R, Kandil A, Smith DF, Ishman SL. Sleep Endoscopy and Cine Magnetic Resonance Imaging Evaluation of Children With Persistent Obstructive Sleep Apnea. Otolaryngol Head Neck Surg 2023; 168:848-855. [PMID: 35608914 PMCID: PMC10127993 DOI: 10.1177/01945998221097659] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 11/21/2021] [Accepted: 04/12/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To compare findings of same-day cine magnetic resonance imaging (MRI) and drug-induced sleep endoscopy (DISE) and examine how each technique uniquely contributes to the evaluation of persistent obstructive sleep apnea following adenotonsillectomy. STUDY DESIGN Retrospective cohort study. SETTING Quaternary care center. METHODS Chart review was performed for consecutive patients who underwent same-day cine MRI and DISE between 2015 and 2020. Descriptive statistics are reported, and Cohen kappa coefficients were calculated to evaluate the agreement between cine MRI and DISE for obstruction at the adenoids, lingual tonsils, and tongue base. RESULTS There were 137 patients, the mean age was 10.4 years (95% CI, 3.2-16.7), and 62.8% were male. The most common sites of obstruction on DISE were the tongue base (86.9%), velum (78.7%), epiglottis (74.5%), inferior turbinate (68.6%), and lingual tonsil (61.3%). The most common sites of obstruction on cine MRI were the hypopharynx (56.3%), tongue base (44.8%), lingual tonsil (38.0%), and macroglossia (37.6%). There was moderate agreement for adenoid hypertrophy (κ = 0.53) and poor agreement for lingual tonsil hypertrophy (κ = 0.15) and tongue base obstruction (κ = 0.09). DISE identified more instances of multilevel obstruction when compared with cine MRI (94.9% vs 48.2%). CONCLUSION DISE offered a better examination of nasal and supraglottic obstruction and is sensitive to partial vs complete collapse, while cine MRI offered better soft tissue resolution for lymphoid tissue hypertrophy and provided a global view of primary and secondary airway obstruction. Cine MRI and DISE are complementary modalities in the evaluation of children with persistent obstructive sleep apnea.
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Affiliation(s)
- Carol Li
- Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Yann-Fuu Kou
- Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Michael A. DeMarcantonio
- Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Otolaryngology–Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Christine H. Heubi
- Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Otolaryngology–Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Division of Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Robert Fleck
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Radiology, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Ali Kandil
- Division of Anesthesiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - David F. Smith
- Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Otolaryngology–Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Division of Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Stacey L. Ishman
- Department of Otolaryngology–Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Division of Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of HeathVine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
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9
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Smith DF, Heubi CH, Wit R, Dye TJ. A Word of Caution: Adenotonsillectomy May Help Reduce Central Apneas, but It Is Not a Treatment for Central Sleep Apnea. Laryngoscope 2023; 133:E8-E9. [PMID: 35642622 PMCID: PMC9712584 DOI: 10.1002/lary.30227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 11/11/2022]
Affiliation(s)
- David F Smith
- Division of Pediatric Otolaryngology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Christine H Heubi
- Division of Pediatric Otolaryngology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Rochelle Wit
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Division of Neurology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Thomas J Dye
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Division of Neurology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
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10
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Wang YM, Taggart CB, Huber JF, Davies SM, Smith DF, Hogenesch JB, Dandoy CE. Daytime-restricted parenteral feeding is associated with earlier oral intake in children following stem cell transplant. J Clin Invest 2023; 133:167275. [PMID: 36787253 PMCID: PMC9927921 DOI: 10.1172/jci167275] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Affiliation(s)
- YunZu Michele Wang
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA.,University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Cynthia B. Taggart
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - John F. Huber
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Stella M. Davies
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA.,University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - David F. Smith
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pediatric Otolaryngology and
| | - John B. Hogenesch
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Divisions of Human Genetics, Immunobiology, and Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Christopher E. Dandoy
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA.,University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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11
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Lee YY, Endale M, Wu G, Ruben MD, Francey LJ, Morris AR, Choo NY, Anafi RC, Smith DF, Liu AC, Hogenesch JB. Integration of genome-scale data identifies candidate sleep regulators. Sleep 2023; 46:zsac279. [PMID: 36462188 PMCID: PMC9905783 DOI: 10.1093/sleep/zsac279] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 06/21/2022] [Revised: 09/02/2022] [Indexed: 12/05/2022] Open
Abstract
STUDY OBJECTIVES Genetics impacts sleep, yet, the molecular mechanisms underlying sleep regulation remain elusive. In this study, we built machine learning models to predict sleep genes based on their similarity to genes that are known to regulate sleep. METHODS We trained a prediction model on thousands of published datasets, representing circadian, immune, sleep deprivation, and many other processes, using a manually curated list of 109 sleep genes. RESULTS Our predictions fit with prior knowledge of sleep regulation and identified key genes and pathways to pursue in follow-up studies. As an example, we focused on the NF-κB pathway and showed that chronic activation of NF-κB in a genetic mouse model impacted the sleep-wake patterns. CONCLUSION Our study highlights the power of machine learning in integrating prior knowledge and genome-wide data to study genetic regulation of complex behaviors such as sleep.
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Affiliation(s)
- Yin Yeng Lee
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Mehari Endale
- Department of Physiology and Aging, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Gang Wu
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Marc D Ruben
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Lauren J Francey
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Andrew R Morris
- Department of Physiology and Aging, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Natalie Y Choo
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Ron C Anafi
- Department of Medicine, Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Andrew C Liu
- Department of Physiology and Aging, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
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12
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Ishman SL, Maturo S, Schwartz S, McKenna M, Baldassari CM, Bergeron M, Chernobilsky B, Ehsan Z, Gagnon L, Liu YCC, Smith DF, Stanley J, Zalzal H, Dhepyasuwan N. Expert Consensus Statement: Management of Pediatric Persistent Obstructive Sleep Apnea After Adenotonsillectomy. Otolaryngol Head Neck Surg 2023; 168:115-130. [PMID: 36757810 PMCID: PMC10105630 DOI: 10.1002/ohn.159] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [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: 06/07/2022] [Revised: 08/03/2022] [Accepted: 08/13/2022] [Indexed: 01/27/2023]
Abstract
OBJECTIVE To develop an expert consensus statement regarding persistent pediatric obstructive sleep apnea (OSA) focused on quality improvement and clarification of controversies. Persistent OSA was defined as OSA after adenotonsillectomy or OSA after tonsillectomy when adenoids are not enlarged. METHODS An expert panel of clinicians, nominated by stakeholder organizations, used the published consensus statement methodology from the American Academy of Otolaryngology-Head and Neck Surgery to develop statements for a target population of children aged 2-18 years. A medical librarian systematically searched the literature used as a basis for the clinical statements. A modified Delphi method was used to distill expert opinion and compose statements that met a standardized definition of consensus. Duplicate statements were combined prior to the final Delphi survey. RESULTS After 3 iterative Delphi surveys, 34 statements met the criteria for consensus, while 18 statements did not. The clinical statements were grouped into 7 categories: general, patient assessment, management of patients with obesity, medical management, drug-induced sleep endoscopy, surgical management, and postoperative care. CONCLUSION The panel reached a consensus for 34 statements related to the assessment, management and postoperative care of children with persistent OSA. These statements can be used to establish care algorithms, improve clinical care, and identify areas that would benefit from future research.
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Affiliation(s)
- Stacey L. Ishman
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Stephen Maturo
- Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Seth Schwartz
- Virginia Mason Medical Center, Seattle, Washington, USA
| | - Margo McKenna
- University of Rochester Medical Center/Golisano Children’s Hospital, Rochester, New York, USA
| | - Cristina M. Baldassari
- Eastern Virginia Medical School/Children’s Hospital of the King’s Daughter, Norfolk, Virginia, USA
| | - Mathieu Bergeron
- Sainte-Justine Hospital, University of Montreal, Montreal, Quebec, Canada
| | | | - Zarmina Ehsan
- University of Missouri—Kansas City, Kansas City, Missouri, USA
| | - Lisa Gagnon
- Yale University/Connecticut Pediatric Otolaryngology, New Haven, Connecticut, USA
| | - Yi-Chun Carol Liu
- Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA
| | - David F. Smith
- Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jeffrey Stanley
- University of Michigan Health/Michigan Medicine, Ann Arbor, Michigan, USA
| | - Habib Zalzal
- Children’s National Health System, Washington, District of Columbia, USA
| | - Nui Dhepyasuwan
- American Academy of Otolaryngology—Head and Neck Surgery Foundation, Alexandria, Virginia, USA
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13
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Wang YM, Taggart CB, Huber J, Davies SM, Smith DF, Hogenesch JB, Dandoy DCE. Earlier Oral Intake in Pediatric Stem Cell Transplant Patients Receiving Time-Restricted Feeding: A Prospective, Randomized Trial. Transplant Cell Ther 2023. [DOI: 10.1016/s2666-6367(23)00236-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Wang YM, Dandoy CE, Smith DF, Hogenesch J. Go to bed!: Sleep as a risk factor for adolescent hypertension. Progress in Pediatric Cardiology 2023. [DOI: 10.1016/j.ppedcard.2023.101613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Gaitonde KD, Andrabi M, Burger CA, D'Souza SP, Vemaraju S, Koritala BSC, Smith DF, Lang RA. Diurnal regulation of metabolism by Gs-alpha in hypothalamic QPLOT neurons. PLoS One 2023; 18:e0284824. [PMID: 37141220 PMCID: PMC10159165 DOI: 10.1371/journal.pone.0284824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/09/2023] [Indexed: 05/05/2023] Open
Abstract
Neurons in the hypothalamic preoptic area (POA) regulate multiple homeostatic processes, including thermoregulation and sleep, by sensing afferent input and modulating sympathetic nervous system output. The POA has an autonomous circadian clock and may also receive circadian signals indirectly from the suprachiasmatic nucleus. We have previously defined a subset of neurons in the POA termed QPLOT neurons that are identified by the expression of molecular markers (Qrfp, Ptger3, LepR, Opn5, Tacr3) that suggest receptivity to multiple stimuli. Because Ptger3, Opn5, and Tacr3 encode G-protein coupled receptors (GPCRs), we hypothesized that elucidating the G-protein signaling in these neurons is essential to understanding the interplay of inputs in the regulation of metabolism. Here, we describe how the stimulatory Gs-alpha subunit (Gnas) in QPLOT neurons regulates metabolism in mice. We analyzed Opn5cre; Gnasfl/fl mice using indirect calorimetry at ambient temperatures of 22°C (a historical standard), 10°C (a cold challenge), and 28°C (thermoneutrality) to assess the ability of QPLOT neurons to regulate metabolism. We observed a marked decrease in nocturnal locomotion of Opn5cre; Gnasfl/fl mice at both 28°C and 22°C, but no overall differences in energy expenditure, respiratory exchange, or food and water consumption. To analyze daily rhythmic patterns of metabolism, we assessed circadian parameters including amplitude, phase, and MESOR. Loss-of-function GNAS in QPLOT neurons resulted in several subtle rhythmic changes in multiple metabolic parameters. We observed that Opn5cre; Gnasfl/fl mice show a higher rhythm-adjusted mean energy expenditure at 22°C and 10°C, and an exaggerated respiratory exchange shift with temperature. At 28°C, Opn5cre; Gnasfl/fl mice have a significant delay in the phase of energy expenditure and respiratory exchange. Rhythmic analysis also showed limited increases in rhythm-adjusted means of food and water intake at 22°C and 28°C. Together, these data advance our understanding of Gαs-signaling in preoptic QPLOT neurons in regulating daily patterns of metabolism.
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Affiliation(s)
- Kevin D Gaitonde
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Molecular & Developmental Biology Graduate Program, University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
- Medical Scientist Training Program, University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
| | - Mutahar Andrabi
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, OH, United States of America
| | - Courtney A Burger
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, OH, United States of America
| | - Shane P D'Souza
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Molecular & Developmental Biology Graduate Program, University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
| | - Shruti Vemaraju
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, OH, United States of America
| | - Bala S C Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- The Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Richard A Lang
- Division of Pediatric Ophthalmology, Abrahamson Pediatric Eye Institute, Visual Systems Group, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Science of Light Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, OH, United States of America
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16
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Kudelka MR, Lasanajak Y, Smith DF, Song X, Hossain MS, Owonikoko TK. Serum glycomic profile as a predictive biomarker of recurrence in patients with differentiated thyroid cancer. Cancer Med 2022; 12:6768-6777. [PMID: 36437732 PMCID: PMC10067050 DOI: 10.1002/cam4.5465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/21/2022] [Accepted: 11/11/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Thyroid cancer recurrence following curative thyroidectomy is associated with increased morbidity and mortality, but current surveillance strategies are inadequate for early detection. Prior studies indicate that tissue glycosylation is altered in thyroid cancer, but the utility of serum glycosylation in thyroid cancer surveillance remains unexplored. We therefore assessed the potential utility of altered serum glycomic profile as a tumor-specific target for disease surveillance in recurrent thyroid cancer. EXPERIMENTAL DESIGN We employed banked serum samples from patients with recurrent thyroid cancer post thyroidectomy and healthy controls. N-glycans were enzymatically released from serum glycoproteins, labeled via permethylation, and analyzed by MALDI-TOF mass spectrometry. Global level and specific subtypes of glycan structures were compared between patients and controls. RESULTS We evaluated 28 independent samples from 13 patients with cancer recurrence and 15 healthy controls. Global features of glycosylation, including N-glycan class and terminal glycan modifications were similar between groups, but three of 35 individual glycans showed significant differences. The three glycans were biosynthetically related biantennary core fucosylated N-glycans that only varied by the degree of galactosylation (G0F, G1F, and G2F; G: galactose, F: fucose). The ratio of G0F:G1F that captures reduced galactosylation was observed in patients samples but not in healthy controls (p = 0.004) and predicted thyroid cancer recurrence (AUC = 0.82, CI 95% = 0.64-0.99). CONCLUSIONS Altered N-glycomic profile was associated with thyroid cancer recurrence. This serum-based biomarker would be useful as an effective surveillance tool to improve the care and prognosis of thyroid cancer after prospective validation.
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Affiliation(s)
- Matthew R. Kudelka
- Department of Medicine Memorial Sloan Kettering Cancer Center New York City New York USA
| | - Yi Lasanajak
- Department of Biochemistry Emory University School of Medicine Atlanta Georgia USA
| | - David F. Smith
- Department of Biochemistry Emory University School of Medicine Atlanta Georgia USA
| | - Xuezheng Song
- Department of Biochemistry Emory University School of Medicine Atlanta Georgia USA
| | - Mohammad S. Hossain
- Department of Hematology and Medical Oncology Emory University Winship Cancer Institute Atlanta Georgia USA
| | - Taofeek K. Owonikoko
- Department of Hematology and Medical Oncology Emory University Winship Cancer Institute Atlanta Georgia USA
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Bojar D, Meche L, Meng G, Eng W, Smith DF, Cummings RD, Mahal LK. A Useful Guide to Lectin Binding: Machine-Learning Directed Annotation of 57 Unique Lectin Specificities. ACS Chem Biol 2022; 17:2993-3012. [PMID: 35084820 PMCID: PMC9679999 DOI: 10.1021/acschembio.1c00689] [Citation(s) in RCA: 87] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Glycans are critical to every facet of biology and medicine, from viral infections to embryogenesis. Tools to study glycans are rapidly evolving; however, the majority of our knowledge is deeply dependent on binding by glycan binding proteins (e.g., lectins). The specificities of lectins, which are often naturally isolated proteins, have not been well-defined, making it difficult to leverage their full potential for glycan analysis. Herein, we use a combination of machine learning algorithms and expert annotation to define lectin specificity for this important probe set. Our analysis uses comprehensive glycan microarray analysis of commercially available lectins we obtained using version 5.0 of the Consortium for Functional Glycomics glycan microarray (CFGv5). This data set was made public in 2011. We report the creation of this data set and its use in large-scale evaluation of lectin-glycan binding behaviors. Our motif analysis was performed by integrating 68 manually defined glycan features with systematic probing of computational rules for significant binding motifs using mono- and disaccharides and linkages. Combining machine learning with manual annotation, we create a detailed interpretation of glycan-binding specificity for 57 unique lectins, categorized by their major binding motifs: mannose, complex-type N-glycan, O-glycan, fucose, sialic acid and sulfate, GlcNAc and chitin, Gal and LacNAc, and GalNAc. Our work provides fresh insights into the complex binding features of commercially available lectins in current use, providing a critical guide to these important reagents.
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Affiliation(s)
- Daniel Bojar
- Department
of Chemistry and Molecular Biology and Wallenberg Centre for Molecular
and Translational Medicine, University of
Gothenburg, Gothenburg, Sweden 405 30
| | - Lawrence Meche
- Biomedical
Chemistry Institute, Department of Chemistry, New York University, 100 Washington Square East, Room 1001, New
York, New York 10003, United States
| | - Guanmin Meng
- Department
of Chemistry, University of Alberta, Edmonton, Canada, T6G 2G2
| | - William Eng
- Biomedical
Chemistry Institute, Department of Chemistry, New York University, 100 Washington Square East, Room 1001, New
York, New York 10003, United States
| | - David F. Smith
- Department
of Biochemistry, Glycomics Center, School of Medicine, Emory University, Atlanta, Georgia 30322, United States
| | - Richard D. Cummings
- Department
of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Lara K. Mahal
- Biomedical
Chemistry Institute, Department of Chemistry, New York University, 100 Washington Square East, Room 1001, New
York, New York 10003, United States,Department
of Chemistry, University of Alberta, Edmonton, Canada, T6G 2G2,E-mail:
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18
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Hu L, Salmen W, Sankaran B, Lasanajak Y, Smith DF, Crawford SE, Estes MK, Prasad BVV. Novel fold of rotavirus glycan-binding domain predicted by AlphaFold2 and determined by X-ray crystallography. Commun Biol 2022; 5:419. [PMID: 35513489 PMCID: PMC9072675 DOI: 10.1038/s42003-022-03357-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 09/07/2021] [Accepted: 04/12/2022] [Indexed: 02/08/2023] Open
Abstract
The VP8* domain of spike protein VP4 in group A and C rotaviruses, which cause epidemic gastroenteritis in children, exhibits a conserved galectin-like fold for recognizing glycans during cell entry. In group B rotavirus, which causes significant diarrheal outbreaks in adults, the VP8* domain (VP8*B) surprisingly lacks sequence similarity with VP8* of group A or group C rotavirus. Here, by using the recently developed AlphaFold2 for ab initio structure prediction and validating the predicted model by determining a 1.3-Å crystal structure, we show that VP8*B exhibits a novel fold distinct from the galectin fold. This fold with a β-sheet clasping an α-helix represents a new fold for glycan recognition based on glycan array screening, which shows that VP8*B recognizes glycans containing N-acetyllactosamine moiety. Although uncommon, our study illustrates how evolution can incorporate structurally distinct folds with similar functionality in a homologous protein within the same virus genus.
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Affiliation(s)
- Liya Hu
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA.
| | - Wilhelm Salmen
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Banumathi Sankaran
- Berkeley Center for Structural Biology, Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley Laboratory, Berkeley, CA, USA
| | - Yi Lasanajak
- Emory Glycomics and Molecular Interactions Core (EGMIC), Emory University School of Medicine, Atlanta, GA, USA
| | - David F Smith
- Emory Glycomics and Molecular Interactions Core (EGMIC), Emory University School of Medicine, Atlanta, GA, USA
| | - Sue E Crawford
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Mary K Estes
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - B V Venkataram Prasad
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA.
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA.
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19
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Wang YM, Flesch L, Demmel KM, Lane A, Beebe DW, Crosby LE, Hogenesch J, Smith DF, Davies SM, Dandoy CE. Poor Sleep Quality in Pediatric HSCT Recipients. Transplant Cell Ther 2022. [DOI: 10.1016/s2666-6367(22)00669-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Leader BA, Koritala BSC, Moore CA, Dean EG, Kottyan LC, Smith DF. Epigenetics of obstructive sleep apnea syndrome: a systematic review. J Clin Sleep Med 2021; 17:2533-2541. [PMID: 34176557 DOI: 10.5664/jcsm.9514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) is a chronic and widely prevalent disease, associated with multiple health disorders. Current diagnostic strategies for OSA are limited due to cost, time, and access. Epigenetic signatures offer insight into the relationships between disease and environment and could play a significant role in developing both diagnostic and therapeutic tools for OSA. In the current study, a systematic literature search was conducted to investigate the existing evidence of OSA-associated epigenetic modifications. METHODS A systematic literature search was performed using electronic academic databases including PubMed, CINAHL, Scopus, Embase, EBM Reviews, and Web of Science. However, the current study focused on screening for original, English language articles pertaining to OSA and associated epigenetic mechanisms. To produce unbiased results, screening was performed independently by authors. RESULTS We identified 2,944 publications in our systematic search. Among them, 65 research articles were related to OSA-associated differential gene expression, genetic variation, and epigenetic modifications. Although these 65 articles were considered for full manuscript review, only twelve articles met the criteria of OSA-associated epigenetic modifications in humans and animal models. Human subjects with OSA had unique epigenetic changes compared to healthy controls, and, interestingly, epigenetic signatures were commonly identified in genes associated with metabolic and inflammatory pathways. CONCLUSIONS Although the available studies are limited, this research provides novel insights for development of epigenetic markers for the diagnosis and treatment of OSA. Thorough genome wide investigations will be required to develop cost-effective, robust biomarkers for the identification of OSA among children and adults. Here, we offer a study design for such efforts.
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Affiliation(s)
- Brittany A Leader
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH.,Contributed equally and are co-first authors
| | - Bala S C Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.,Contributed equally and are co-first authors
| | - Charles A Moore
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Elaine G Dean
- Pratt Research Library, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Leah C Kottyan
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - David F Smith
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH.,Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.,Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.,The Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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21
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Kudelka MR, Li Z, Chernova TA, Smith DF, Song X, Cummings RD, Ju T. Cellular O-Glycome Reporter/Amplification (CORA): Analytical and Preparative Tools to Study Mucin-Type O-Glycans of Living Cells. Curr Protoc 2021; 1:e142. [PMID: 34101390 DOI: 10.1002/cpz1.142] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Mucin-type O-glycosylation (O-glycans, O-glycome) is among the most biologically important post-translational modification in glycoproteins but O-glycan structural diversity and expression are poorly understood due to the inadequacy of current analytical methods. We recently developed a new tool termed cellular O-glycome reporter/amplification (CORA), which uses O-glycan precursors, benzyl-α-GalNAc (Bn-α-GalNAc) or azido-Bn-α-GalNAc (N3 -Bn-α-GalNAc), as surrogates of protein O-glycosylation. Living cells metabolically convert these precursors to all types of O-GalNAc glycans representative of the cells' capabilities. The amplification and secretion of the O-glycome products greatly facilitates their analysis and functional studies. Here we describe protocols for analytical and preparative applications. © 2021 The Authors. Current Protocols published by Wiley Periodicals LLC. This article is a U.S. Government work and is in the public domain in the USA. Basic Protocol 1: Cellular O-glycome reporter/amplification for the analysis of mucin-type O-glycans from living cells Basic Protocol 2: Preparation of cellular O-glycans from living cells for functional glycomics and glycan microarrays Basic Protocol 3: Conjugation of cellular O-glycans with a bifunctional fluorescent tag Basic Protocol 4: 2D-HPLC purification and MALDI-TOF/MS identification of individual PYAB-Bn-O-glycan.
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Affiliation(s)
| | - Zhonghua Li
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia.,NHC Key Laboratory of Glycoconjugate Research Ministry of Health, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Tatiana A Chernova
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia
| | - David F Smith
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia
| | - Xuezheng Song
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Tongzhong Ju
- Office of Biotechnology Products, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
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22
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Abstract
Obstructive sleep apnea (OSA) is a complex process that can lead to the dysregulation of the molecular clock, as well as 24 h rhythms of sleep and wake, blood pressure, and other associated biological processes. Previous work has demonstrated crosstalk between the circadian clock and hypoxia-responsive pathways. However, even in the absence of OSA, disrupted clocks can exacerbate OSA-associated outcomes (e.g., cardiovascular or cognitive outcomes). As we expand our understanding of circadian biology in the setting of OSA, this information could play a significant role in the diagnosis and treatment of OSA. Here, we summarize the pre-existing knowledge of circadian biology in patients with OSA and examine the utility of circadian biomarkers as alternative clinical tools.
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Affiliation(s)
- Bala S. C. Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA;
| | - Zachary Conroy
- College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA;
| | - David F. Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA;
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
- Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
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23
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Ohayon DE, Clay GM, Forney C, Seelamneni H, Sestito A, Duggins A, Fitzpatrick S, Guilliams H, Kottyan LC, Smith DF, Miraldi ER, Waggoner SN. B-cell lymphoma 6 protein modulates function of human tonsillar innate lymphoid cells. The Journal of Immunology 2021. [DOI: 10.4049/jimmunol.206.supp.97.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
Innate lymphoid cells (ILC) play a fundamental role in mucosal homeostasis and immunity via expression of cytokines such as IL-22, IL-17A and IFN-γ. However, the transcriptional network that controls ILC functional identity is incompletely defined. Previously, we demonstrated that BCL6 plays a key role in transcriptional regulation in mouse intestinal ILC1 and ILC3. Here, we performed in vitro cultures of ILCs isolated from human tonsil in the presence of cytokines that promote ILC1 or ILC3 in order to assess the role of BCL6 in functional plasticity of ILCs. ILCs were treated with IL-2 and IL-12/IL-1β or IL-23/IL-1β in the presence or absence of the BCL6 inhibitor FX-1. In the context of IL-12/IL-1β ILC1-promoting culture, FX-1 inhibition of BCL6 reduced expression of Tbet and IFN-γ. In contrast, BCL6 inhibition in the context of IL-23/IL-1β ILC3-inducing conditions had no effect on Tbet, IFN-γ, or RORγt. In either context, FX-1 resulted in reduced IL-22 but increased IL-17A expression in comparison to vehicle treated cultures. Thus, our data emphasizes the role of BCL6 as a regulator of human tonsil ILC functional identity.
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Affiliation(s)
- David E Ohayon
- 1Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center
| | - Gwendolyn M. Clay
- 2Division of Rheumatology, Cincinnati Children’s Hospital Medical Center
| | - Carmy Forney
- 1Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center
| | - Harsha Seelamneni
- 1Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center
| | - Alexandra Sestito
- 3Divisions of Pediatric Otolaryngology, Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical
- 4Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine
| | - Angela Duggins
- 3Divisions of Pediatric Otolaryngology, Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical
- 4Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine
| | - Sarah Fitzpatrick
- 3Divisions of Pediatric Otolaryngology, Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical
| | - Harmon Guilliams
- 3Divisions of Pediatric Otolaryngology, Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical
| | - Leah C. Kottyan
- 1Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center
- 5Division of Immunobiology and Biomedical Informatics, Cincinnati Children’s Hospital Medical Center
| | - David F. Smith
- 3Divisions of Pediatric Otolaryngology, Pulmonary and Sleep Medicine, Cincinnati Children’s Hospital Medical
- 4Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine
| | - Emily R. Miraldi
- 5Division of Immunobiology and Biomedical Informatics, Cincinnati Children’s Hospital Medical Center
| | - Stephen N Waggoner
- 1Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center
- 5Division of Immunobiology and Biomedical Informatics, Cincinnati Children’s Hospital Medical Center
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24
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Wu G, Lee YY, Gulla EM, Potter A, Kitzmiller J, Ruben MD, Salomonis N, Whitsett JA, Francey LJ, Hogenesch JB, Smith DF. Short-term exposure to intermittent hypoxia leads to changes in gene expression seen in chronic pulmonary disease. eLife 2021; 10:63003. [PMID: 33599610 PMCID: PMC7909952 DOI: 10.7554/elife.63003] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 09/11/2020] [Accepted: 02/17/2021] [Indexed: 12/16/2022] Open
Abstract
Obstructive sleep apnea (OSA) results from episodes of airway collapse and intermittent hypoxia (IH) and is associated with a host of health complications. Although the lung is the first organ to sense changes in oxygen levels, little is known about the consequences of IH to the lung hypoxia-inducible factor-responsive pathways. We hypothesized that exposure to IH would lead to cell-specific up- and downregulation of diverse expression pathways. We identified changes in circadian and immune pathways in lungs from mice exposed to IH. Among all cell types, endothelial cells showed the most prominent transcriptional changes. Upregulated genes in myofibroblast cells were enriched for genes associated with pulmonary hypertension and included targets of several drugs currently used to treat chronic pulmonary diseases. A better understanding of the pathophysiologic mechanisms underlying diseases associated with OSA could improve our therapeutic approaches, directing therapies to the most relevant cells and molecular pathways.
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Affiliation(s)
- Gang Wu
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Yin Yeng Lee
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, United States
| | - Evelyn M Gulla
- Division of Pediatric Otolaryngology - Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Andrew Potter
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Joseph Kitzmiller
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Marc D Ruben
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Nathan Salomonis
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, United States.,Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Jeffery A Whitsett
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Lauren J Francey
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - David F Smith
- Division of Pediatric Otolaryngology - Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,The Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, United States
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25
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Carosella CM, Smith DF, Sarber KM, Turner M, Dye TJ. Vagus Nerve Stimulator–Associated Sleep Disordered Breathing: Identification, Treatment, and Outcomes in a Pediatric Patient. Journal of Pediatric Neurology 2021. [DOI: 10.1055/s-0039-3402810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AbstractVagus nerve stimulator (VNS)-associated sleep disordered breathing (SDB) is a poorly understood side effect of VNS treatment. We present a patient with VNS-associated SDB who underwent sleep laboratory VNS titration, evaluation by drug-induced sleep endoscopy, and treatment including adenotonsillectomy and positive airway pressure therapy. This case is unique as it is the first to document, in real time, the inverse correlation of VNS current with airflow. This case offers unique insights into mechanisms and treatment of VNS-associated SDB, and a novel approach in its management. Most importantly, this case highlights the need for collaboration between physicians managing epilepsy with VNS and those managing sleep.
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Affiliation(s)
- Christopher M. Carosella
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
| | - David F. Smith
- Division of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
- Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio, United States
| | - Kathleen M. Sarber
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
| | - Michele Turner
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
| | - Thomas J. Dye
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
- Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio, United States
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26
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Sidell DR, Balakrishnan K, Best SR, Zur K, Buckingham J, De Alarcon A, Baroody FM, Bock JM, Boss EF, Bower CM, Campisi P, Chen SF, Clarke JM, Clarke KD, Cocciaglia A, Cotton RT, Cuestas G, Davis KL, DeFago VH, Dikkers FG, Dossans I, Florez W, Fox E, Friedman AD, Grant N, Hamdi O, Hogikyan ND, Johnson K, Johnson LB, Johnson RF, Kelly P, Klein AM, Lawlor CM, Leboulanger N, Levy AG, Lam D, Licameli GR, Long S, Lott DG, Manrique D, McMurray JS, Meister KD, Messner AH, Mohr M, Mudd P, Mortelliti AJ, Novakovic D, Ongkasuwan J, Peer S, Piersiala K, Prager JD, Pransky SM, Preciado D, Raynor T, Rinkel RNPM, Rodriguez H, Rodríguez VP, Russell J, Scatolini ML, Scheffler P, Smith DF, Smith LP, Smith ME, Smith RJH, Sorom A, Steinberg A, Stith JA, Thompson D, Thompson JW, Varela P, White DR, Wineland AM, Yang CJ, Zdanski CJ, Derkay CS. Systemic Bevacizumab for Treatment of Respiratory Papillomatosis: International Consensus Statement. Laryngoscope 2021; 131:E1941-E1949. [PMID: 33405268 DOI: 10.1002/lary.29343] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/08/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES/HYPOTHESIS The purpose of this study is to develop consensus on key points that would support the use of systemic bevacizumab for the treatment of recurrent respiratory papillomatosis (RRP), and to provide preliminary guidance surrounding the use of this treatment modality. STUDY DESIGN Delphi method-based survey series. METHODS A multidisciplinary, multi-institutional panel of physicians with experience using systemic bevacizumab for the treatment of RRP was established. The Delphi method was used to identify and obtain consensus on characteristics associated with systemic bevacizumab use across five domains: 1) patient characteristics; 2) disease characteristics; 3) treating center characteristics; 4) prior treatment characteristics; and 5) prior work-up. RESULTS The international panel was composed of 70 experts from 12 countries, representing pediatric and adult otolaryngology, hematology/oncology, infectious diseases, pediatric surgery, family medicine, and epidemiology. A total of 189 items were identified, of which consensus was achieved on Patient Characteristics (9), Disease Characteristics (10), Treatment Center Characteristics (22), and Prior Workup Characteristics (18). CONCLUSION This consensus statement provides a useful starting point for clinicians and centers hoping to offer systemic bevacizumab for RRP and may serve as a framework to assess the components of practices and centers currently using this therapy. We hope to provide a strategy to offer the treatment and also to provide a springboard for bevacizumab's use in combination with other RRP treatment protocols. Standardized delivery systems may facilitate research efforts and provide dosing regimens to help shape best-practice applications of systemic bevacizumab for patients with early-onset or less-severe disease phenotypes. LEVEL OF EVIDENCE 5 Laryngoscope, 131:E1941-E1949, 2021.
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Affiliation(s)
- Douglas R Sidell
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A.,Aerodigestive and Airway Reconstruction Center, Lucile Packard Children's Hospital Stanford, Stanford, California, U.S.A
| | - Karthik Balakrishnan
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A.,Aerodigestive and Airway Reconstruction Center, Lucile Packard Children's Hospital Stanford, Stanford, California, U.S.A
| | - Simon R Best
- Department of Otolaryngology-Head and Neck Surgery, Division of Laryngology, and, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, U.S.A
| | - Karen Zur
- Division of Pediatric Otolaryngology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Julia Buckingham
- Maternal and Child Health Research Institute, Lucile Packard Children's Hospital, Stanford University School of Medicine, Stanford University, Stanford, California, U.S.A
| | - Alessandro De Alarcon
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, U.S.A
| | - Fuad M Baroody
- Section of Otolaryngology-Head and Neck Surgery and Department of Pediatrics, University of Chicago Medicine and The Comer Children's Hospital, Chicago, Illinois, U.S.A
| | - Jonathan M Bock
- Department of Otolaryngology and Communication Sciences, Division of Laryngology and Professional Voice, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Emily F Boss
- Department of Otolaryngology-Head and Neck Surgery and the Department of Health Policy and Management, Division of Pediatric Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland, U.S.A
| | - Charles M Bower
- Department of Otolaryngology Head and Neck Surgery, Division of Pediatric Otolaryngology, University of Arkansas for Medical Sciences (UAMS), Arkansas Children's Hospital, Little Rock, Alaska, U.S.A
| | - Paolo Campisi
- Department of Otolaryngology - Head and Neck Surgery, Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Sharon F Chen
- Department of Pediatrics, Division of Infectious Diseases, Lucile Packard Children's Hospital Stanford, Stanford, California, U.S.A
| | - Jeffrey M Clarke
- Department of Medicine, Division of Oncology, Duke Cancer Institute, Duke University School of Medicine, Durham, North Carolina, U.S.A
| | - Kevin D Clarke
- Pediatric Otolaryngology, Division of Otolaryngology Head and Neck Surgery, University of British Columbia (UBC, UVIc), Victoria General Hospital, Victoria, British Columbia, Canada
| | - Alejandro Cocciaglia
- ENT-Respiratory Endoscopy Department, Garrahan Children's Hospital, Buenos Aires, Argentina
| | - Robin T Cotton
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, U.S.A
| | - Giselle Cuestas
- Respiratory Endoscopy Section, ENT Department, Hospital General de Niños "Dr. Pedro de Elizalde", Buenos Aires, Argentina
| | - Kara L Davis
- Department of Pediatrics, Division of Pediatric Oncology, Bass Center for Childhood Cancer and Blood Disorders, Stanford University, Stanford, California, U.S.A
| | - Victor H DeFago
- Pediatric Surgery, Sanatorio del Salvador Privado SA, Cordoba, Argentina
| | - Frederik G Dikkers
- Department of Otorhinolaryngology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Ines Dossans
- Otolaryngology-Head and Neck Surgery, Hospital Pereira Rossell, Montevideo, Uruguay
| | - Walter Florez
- Department of Otolaryngology, Instituto Nacional de Salud del Niño de San Borja, Lima, Peru
| | - Elizabeth Fox
- Comprehensive Cancer Center, St Jude Children's Research Hospital, Memphis, Tennessee, U.S.A
| | - Aaron D Friedman
- Department of Otolaryngology, Head and Neck Surgery, University of Cincinnati School of Medicine, Cincinnati, Ohio, U.S.A
| | - Nazaneen Grant
- Department of Otolaryngology, Division of Laryngology, Medstar Georgetown University Hospital, Georgetown, Washington, District of Columbia, U.S.A
| | - Osama Hamdi
- Howard University College of Medicine, Washington, District of Columbia, U.S.A
| | - Norman D Hogikyan
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan, U.S.A
| | - Kaalan Johnson
- University of Washington School of Medicine, Department of Otolaryngology Head and Neck Surgery, Division of Pediatric Otolaryngology, Seattle, Washington, District of Columbia, U.S.A
| | - Liane B Johnson
- Department of Surgery, Dalhousie University, Division of Paediatric Otolaryngology-Head and Neck Surgery, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Romaine F Johnson
- Department of Otolaryngology-Head and Neck Surgery, University of Texas (UT) Southwestern Medical Center, Dallas, Texas, U.S.A
| | - Peggy Kelly
- Department of Otolaryngology, Head and Neck Surgery, Division of Pediatric Otolaryngology, Children's Hospital Colorado affiliated with University of Colorado, Anschutz, Aurora, Colorado, U.S.A
| | - Adam M Klein
- Department of Otolaryngology-Head and Neck Surgery, Division of Laryngology, Emory Voice Center, Emory University School of Medicine, Atlanta, Georgia, U.S.A
| | - Claire M Lawlor
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Children's National Health System, George Washington University School of Medicine, Washington, District of Columbia, U.S.A
| | - Nicolas Leboulanger
- Head and Neck Surgery, Pediatric Otolaryngology, Necker Enfants Malades Hospital, Paris University, Paris, France
| | - Alejandro G Levy
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Arnold Palmer Hospital Center for Children's Cancer and Blood Disorders, Orlando Health, Orlando, Florida, U.S.A
| | - Derek Lam
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, U.S.A
| | - Greg R Licameli
- Department of Otolaryngology, Boston Children's Hospital, Boston, Massachusetts, U.S.A
| | - Steve Long
- Department of Head and Neck Surgery, Kaiser Permanente, Hillsboro, Oregon, U.S.A
| | - David G Lott
- Department of Otorhinolaryngology, Division of Laryngology, Mayo Clinic Arizona, Phoenix, Arizona, U.S.A
| | - Dayse Manrique
- Department of Otorhinolaryngology, Universidad Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - James Scott McMurray
- Pediatric Otolaryngology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, U.S.A
| | - Kara D Meister
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A.,Aerodigestive and Airway Reconstruction Center, Lucile Packard Children's Hospital Stanford, Stanford, California, U.S.A
| | - Anna H Messner
- Department of Otolaryngology/Head and Neck Surgery, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, U.S.A
| | - Michael Mohr
- Department of Hematology, Oncology and Respiratory Medicine, University Hospital Muenster, Muenster, Germany
| | - Pamela Mudd
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Children's National Health System, George Washington University School of Medicine, Washington, District of Columbia, U.S.A
| | - Anthony J Mortelliti
- Department of Otolaryngology-Head and Neck Surgery, State University of New York (SUNY) Upstate Medical University, Syracuse, New York, U.S.A
| | - Daniel Novakovic
- Department of Otolaryngology, Head and Neck Surgery, Central Clinical School, Faculty of Medicine and Health, University of Sydney, The Canterbury Hospital, Sydney, New South Wales, Australia
| | - Julian Ongkasuwan
- Department of Otolaryngology, Division of Adult and Pediatric Laryngology, Bobby R. Alford Department of Otolaryngology Head and Neck Surgery, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, U.S.A
| | - Shazia Peer
- Division of Otorhinolaryngology, University of Cape Town and Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Krysztof Piersiala
- Division of Ear, Nose and Throat Diseases, Karolinska Institutet, Karolinksa University Hospital, Stockholm, Sweden
| | - Jeremy D Prager
- Department of Otolaryngology, Head and Neck Surgery, Division of Pediatric Otolaryngology, Children's Hospital Colorado affiliated with University of Colorado, Anschutz, Aurora, Colorado, U.S.A
| | | | - Diego Preciado
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Children's National Health System, George Washington University School of Medicine, Washington, District of Columbia, U.S.A
| | - Tiffany Raynor
- Department of Otolaryngology, Head and Neck Surgery, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, U.S.A
| | - Rico N P M Rinkel
- Department of Otolaryngology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Hugo Rodriguez
- Respiratory Endoscopy Department, Hospital de Pediatria Prof Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Verónica P Rodríguez
- Respiratory Endoscopy Section, ENT Department, Hospital General de Niños "Dr. Pedro de Elizalde", Buenos Aires, Argentina
| | - John Russell
- Department of Paediatric Otolaryngology, Children's Health Ireland, Dublin, Ireland
| | - María Laura Scatolini
- Respiratory Endoscopy Department, Hospital de Pediatria Prof Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Patrick Scheffler
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A
| | - David F Smith
- Divisions of Pediatric Otolaryngology, Pulmonary Medicine, and the Sleep Center, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, U.S.A
| | - Lee P Smith
- Division of Otolaryngology-Head and Neck Surgery, Pediatric Otolaryngology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Steven and Alexandra Cohen Children's Medical Center of New York, New Hyde Park, New York, U.S.A
| | - Marshall E Smith
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, U.S.A
| | - Richard J H Smith
- Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa, U.S.A
| | - Abraham Sorom
- Otolaryngology, Head and Neck Surgery, Confluence Health, Wenatchee, Washington, District of Columbia, U.S.A
| | - Amalia Steinberg
- Otolaryngology, Head and Neck Surgery, Alaska Native Medical center, Anchorage, Alaska, U.S.A
| | - John A Stith
- Department of Otolaryngology-Head and Neck Surgery, Division of Pediatric Otolaryngology, SSM Cardinal Glennon Children's Hospital Medical Center, St. Louis, Missouri, U.S.A
| | - Dana Thompson
- Division of Pediatric Otolaryngology Head and Neck Surgery Ann and Robert H Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, U.S.A
| | - Jerome W Thompson
- Department of Otolaryngology-Head and Neck Surgery, Division of Pediatric ENT, LeBonheur Children's Hospital, College of Medicine, University of Tennnessee, Memphis, Tennessee, U.S.A
| | - Patricio Varela
- Pediatric Surgery Department, Universidad de Chile, Mackenna Children Hospital, Clinica Las Condes Medical center, Santiago, Chile
| | - David R White
- Division of Pediatric Otolaryngology, Medical University of South Carolina (MUSC) Shawn Jenkins Children's Hospital, Charleston, South Carolina, U.S.A
| | - Andre M Wineland
- Department of Otolaryngology-Head and Neck Surgery and the Department of Health Policy and Management, Division of Pediatric Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland, U.S.A
| | - Christina J Yang
- Department of Otolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine, Montefiore Medical Center, Children's Hospital at Montefiore, New York, New York, U.S.A
| | - Carlton J Zdanski
- Department of Otolaryngology/Head and Neck Surgery, Division of Pediatric Otolaryngology/Head and Neck Surgery, North Carolina Children's Hospital, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Craig S Derkay
- Department of Otolaryngology-Head and Neck Surgery, Eastern Virginia Medical School, Children's Hospital of the King's Daughters, Norfolk, Virginia, U.S.A
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27
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Feinberg H, Jégouzo SAF, Lasanajak Y, Smith DF, Drickamer K, Weis WI, Taylor ME. Structural analysis of carbohydrate binding by the macrophage mannose receptor CD206. J Biol Chem 2021; 296:100368. [PMID: 33545173 PMCID: PMC7949135 DOI: 10.1016/j.jbc.2021.100368] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [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: 08/22/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
The human mannose receptor expressed on macrophages and hepatic endothelial cells scavenges released lysosomal enzymes, glycopeptide fragments of collagen, and pathogenic microorganisms and thus reduces damage following tissue injury. The receptor binds mannose, fucose, or N-acetylglucosamine (GlcNAc) residues on these targets. C-type carbohydrate-recognition domain 4 (CRD4) of the receptor contains the site for Ca2+-dependent interaction with sugars. To investigate the details of CRD4 binding, glycan array screening was used to identify oligosaccharide ligands. The strongest signals were for glycans that contain either Manα1-2Man constituents or fucose in various linkages. The mechanisms of binding to monosaccharides and oligosaccharide substructures present in many of these ligands were examined in multiple crystal structures of CRD4. Binding of mannose residues to CRD4 results primarily from interaction of the equatorial 3- and 4-OH groups with a conserved principal Ca2+ common to almost all sugar-binding C-type CRDs. In the Manα1-2Man complex, supplementary interactions with the reducing mannose residue explain the enhanced affinity for this disaccharide. Bound GlcNAc also interacts with the principal Ca2+ through equatorial 3- and 4-OH groups, whereas fucose residues can bind in several orientations, through either the 2- and 3-OH groups or the 3- and 4-OH groups. Secondary contacts with additional sugars in fucose-containing oligosaccharides, such as the Lewis-a trisaccharide, provide enhanced affinity for these glycans. These results explain many of the biologically important interactions of the mannose receptor with both mammalian glycoproteins and microbes such as yeast and suggest additional classes of ligands that have not been previously identified.
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Affiliation(s)
- Hadar Feinberg
- Departments of Structural Biology and Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, USA
| | - Sabine A F Jégouzo
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Yi Lasanajak
- Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, Georgia, USA
| | - David F Smith
- Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Kurt Drickamer
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - William I Weis
- Departments of Structural Biology and Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, USA.
| | - Maureen E Taylor
- Department of Life Sciences, Imperial College London, London, United Kingdom.
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28
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Matsumoto Y, Kudelka MR, Hanes MS, Lehoux S, Dutta S, Jones MB, Stackhouse KA, Cervoni GE, Heimburg-Molinaro J, Smith DF, Ju T, Chaikof EL, Cummings RD. Identification of Tn antigen O-GalNAc-expressing glycoproteins in human carcinomas using novel anti-Tn recombinant antibodies. Glycobiology 2020; 30:282-300. [PMID: 31742337 DOI: 10.1093/glycob/cwz095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/08/2019] [Accepted: 11/02/2019] [Indexed: 12/14/2022] Open
Abstract
The Tn antigen is a neoantigen abnormally expressed in many human carcinomas and expression correlates with metastasis and poor survival. To explore its biomarker potential, new antibodies are needed that specifically recognize this antigen in tumors. Here we generated two recombinant antibodies to the Tn antigen, Remab6 as a chimeric human IgG1 antibody and ReBaGs6 as a murine IgM antibody and characterized their specificities using multiple biochemical and biological approaches. Both Remab6 and ReBaGs6 recognize clustered Tn structures, but most importantly do not recognize glycoforms of human IgA1 that contain potential cross-reactive Tn antigen structures. In flow cytometry and immunofluorescence analyses, Remab6 recognizes human cancer cell lines expressing the Tn antigen, but not their Tn-negative counterparts. In immunohistochemistry (IHC), Remab6 stains many human cancers in tissue array format but rarely stains normal tissues and then mostly intracellularly. We used these antibodies to identify several unique Tn-containing glycoproteins in Tn-positive Colo205 cells, indicating their utility for glycoproteomics in future biomarker studies. Thus, recombinant Remab6 and ReBaGs6 are useful for biochemical characterization of cancer cells and IHC of tumors and represent promising tools for Tn biomarker discovery independently of recognition of IgA1.
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Affiliation(s)
- Yasuyuki Matsumoto
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Matthew R Kudelka
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA.,Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA
| | - Melinda S Hanes
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Sylvain Lehoux
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Sucharita Dutta
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Mark B Jones
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Kathryn A Stackhouse
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Gabrielle E Cervoni
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Jamie Heimburg-Molinaro
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - David F Smith
- Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA
| | - Tongzhong Ju
- Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA.,Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Bldg 52/72, Room 2120, 10903 New Hampshire Ave, Silver Spring, MD 20993, USA
| | - Elliot L Chaikof
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA.,Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11087, 3 Blackfan Circle, Boston, MA 02115, USA
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29
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Matsumoto Y, Kudelka MR, Hanes MS, Lehoux S, Dutta S, Jones MB, Stackhouse KA, Cervoni GE, Heimburg-Molinaro J, Smith DF, Ju T, Chaikof EL, Cummings RD. Erratum to: Identification of Tn antigen O-GalNAc-expressing glycoproteins in human carcinomas using novel anti-Tn recombinant antibodies. Glycobiology 2020; 30:1015. [PMID: 32415964 DOI: 10.1093/glycob/cwaa044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/08/2019] [Accepted: 11/02/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yasuyuki Matsumoto
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Matthew R Kudelka
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA.,Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA
| | - Melinda S Hanes
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Sylvain Lehoux
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Sucharita Dutta
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Mark B Jones
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Kathryn A Stackhouse
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Gabrielle E Cervoni
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Jamie Heimburg-Molinaro
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - David F Smith
- Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA
| | - Tongzhong Ju
- Department of Biochemistry, Emory University School of Medicine, 1518 Clifton Rd, Atlanta, GA 30322, USA.,Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Bldg 52/72, Room 2120, 10903 New Hampshire Ave, Silver Spring, MD 20993, USA
| | - Elliot L Chaikof
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11090, 3 Blackfan Circle, Boston, MA 02115, USA.,Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, CLS 11087, 3 Blackfan Circle, Boston, MA 02115, USA
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30
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Kappler K, Restin T, Lasanajak Y, Smith DF, Bassler D, Hennet T. Limited Neonatal Carbohydrate-Specific Antibody Repertoire Consecutive to Partial Prenatal Transfer of Maternal Antibodies. Front Immunol 2020; 11:573629. [PMID: 33162988 PMCID: PMC7591393 DOI: 10.3389/fimmu.2020.573629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/01/2020] [Accepted: 09/08/2020] [Indexed: 12/20/2022] Open
Abstract
Despite the prominence of carbohydrate-specific antibodies in human sera, data on their emergence and antigen specificities are limited. Whereas maternal IgG are transferred prenatally to the fetal circulation, IgM present in cord blood originate from fetal B lymphocytes. Considering the limited exposure of the fetus to foreign antigens, we assessed the repertoire of carbohydrate-specific antibodies in human cord blood and matched maternal blood samples using glycan arrays. Carbohydrate-specific IgM was absent in cord blood, whereas low cord blood IgG reactivity to glycans was detectable. Comparing IgG reactivities of matched pairs, we observed a general lack of correlation in the antigen specificity of IgG from cord blood and maternal blood due to a selective exclusion of most carbohydrate-specific IgG from maternofetal transfer. Given the importance of intestinal bacteria in inducing carbohydrate-specific antibodies, we analyzed global antibody specificities toward commensal bacteria. Similar IgG reactivities to specific Bacteroides species were detected in matched cord and maternal blood samples, thus pointing to an efficient maternal transfer of anti-microbial IgG. Due to the observed selectivity in maternofetal IgG transfer, the lack of fetal antibodies to carbohydrate epitopes is only partially compensated by maternal IgG, thus resulting in a weak response to carbohydrate antigens in neonates.
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Affiliation(s)
| | - Tanja Restin
- Institute of Physiology, University of Zurich, Zurich, Switzerland.,Department of Neonatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Yi Lasanajak
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
| | - David F Smith
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
| | - Dirk Bassler
- Department of Neonatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Thierry Hennet
- Institute of Physiology, University of Zurich, Zurich, Switzerland
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31
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Heubi CH, Knollman P, Wiley S, Shott SR, Smith DF, Ishman SL, Meinzen-Derr J. Sleep Architecture in Children With Down Syndrome With and Without Obstructive Sleep Apnea. Otolaryngol Head Neck Surg 2020; 164:1108-1115. [PMID: 33021431 DOI: 10.1177/0194599820960454] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To characterize polysomnographic sleep architecture in children with Down syndrome and compare findings in those with and without obstructive sleep apnea. STUDY DESIGN Case series with retrospective review. SETTING Single tertiary pediatric hospital (2005-2018). METHODS We reviewed the electronic health records of patients undergoing polysomnography who were referred from a specialized center for children with Down syndrome (age, ≥12 months). Continuous positive airway pressure titration, oxygen titration, and split-night studies were excluded. RESULTS A total of 397 children were included (52.4% male, 81.6% Caucasian). Mean age at the time of polysomnography was 4.7 years (range, 1.4-14.7); 79.4% had obstructive sleep apnea. Sleep variables were reported as mean (SD) values: sleep efficiency, 85% (11%); sleep latency, 29.8 minutes (35.6); total sleep time, 426 minutes (74.6); rapid eye movement (REM) latency, 126.8 minutes (66.3); time spent in REM sleep, 22% (7%); arousal index, 13.3 (5); and time spent supine, 44% (28%). There were no significant differences between those with obstructive sleep apnea and those without. Sleep efficiency <80% was seen in 32.5%; 34.3% had a sleep latency >30 minutes; 15.9% had total sleep time <360 minutes; and 75.6% had an arousal index >10/h. Overall, 69.2% had ≥2 metrics of poor sleep architecture. REM sleep time <20% was seen in 35.3%. REM sleep time decreased with age. CONCLUSION In children with Down syndrome, 32.5% had sleep efficiency <80%; 75.6% had an elevated arousal index; and 15.9% had total sleep time <360 minutes. More than a third of the patients had ≥3 markers of poor sleep architecture. There was no difference in children with or without obstructive sleep apnea.
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Affiliation(s)
- Christine H Heubi
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Philip Knollman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Susan Wiley
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sally R Shott
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Stacey L Ishman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Jareen Meinzen-Derr
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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32
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Sarber KM, von Allmen DC, Tikhtman R, Howard J, Simakajornboon N, Yu W, Smith DF, Ishman SL. Polysomnographic Outcomes After Observation for Mild Obstructive Sleep Apnea in Children Younger Than 3 Years. Otolaryngol Head Neck Surg 2020; 164:427-432. [PMID: 32988267 DOI: 10.1177/0194599820954383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Mild obstructive sleep apnea (OSA), particularly in young children, is often treated with observation. However, there is little evidence regarding the outcomes with this approach. Our aim was to assess the impact of observation on sleep for children aged <3 years with mild OSA. STUDY DESIGN Case-control study. SETTING Pediatric tertiary care center. METHODS We reviewed cases of children (<3 years old) diagnosed with mild OSA (obstructive apnea-hypopnea index, 1-5 events/h) who were treated with observation between 2012 and 2017 and had at least 2 polysomnograms performed 3 to 12 months apart. Demographic data and comorbid diagnoses were collected. RESULTS Twenty-six children met inclusion criteria; their median age was 7.2 months (95% CI, 1.2-22.8). Nine (35%) were female and 24 (92%) were White. Their median body mass index percentile was 39 (95% CI, 1-76). Comorbidities included cardiac disease (42.3%), laryngomalacia (42.3%), allergies (34.6%), reactive airway disease (23.1%), and prematurity (7.7%). The obstructive apnea-hypopnea index significantly decreased from 2.7 events/h (95% CI, 1-4.5) to 1.3 (95% CI, 0-4.5; P = .013). There was no significant improvement in median saturation nadir (baseline, 86%; P = .76) or median time with end-tidal carbon dioxide >50 mm Hg (baseline, 0 minutes; P = .34). OSA resolved in 8 patients (31%) and worsened in 1 (3.8%). Only race was a significant predictor of resolution per regression analysis; however, only 2 non-White children were included. CONCLUSION In our cohort, resolution of mild OSA occurred in 31% of patients treated with 3 to 12 months of observation. The presence of laryngomalacia, asthma, and allergies did not affect resolution. Larger studies are needed to better identify factors (including race) associated with persistent OSA and optimal timing of intervention for these children. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- Kathleen M Sarber
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Douglas C von Allmen
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Raisa Tikhtman
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Javier Howard
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Narong Simakajornboon
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Wenwen Yu
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Stacey L Ishman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
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Knollman PD, Heubi CH, Wiley S, Smith DF, Shott SR, Ishman SL, Meinzen-Derr J. Demographic and Clinical Characteristics Associated With Adherence to Guideline-Based Polysomnography in Children With Down Syndrome. Otolaryngol Head Neck Surg 2020; 164:877-883. [PMID: 32928046 DOI: 10.1177/0194599820954837] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVES To compare the demographic and clinical characteristics of children with Down syndrome who did and did not receive polysomnography to evaluate for obstructive sleep apnea after publication of the American Academy of Pediatrics' guidelines recommending universal screening by age 4 years. STUDY DESIGN Retrospective cohort study. SETTING Single tertiary pediatric hospital. METHODS Review was conducted of children with Down syndrome born between 2007 and 2012. Children who obtained polysomnography were compared with children who did not, regarding demographic data, socioeconomic status, and comorbidities. RESULTS We included 460 children with Down syndrome; 273 (59.3%) received at least 1 polysomnogram, with a median age of 3.6 years (range, 0.1-8.9 years). There was no difference in the distribution of sex, insurance status, or socioeconomic status between children who received polysomnography and those who did not. There was a significant difference in race distribution (P = .0004) and distance from home to the medical center (P < .0001) between groups. Among multiple medical comorbidities, only children with a history of hypothyroidism (P = .003) or pulmonary aspiration (P = .01) were significantly more likely to have obtained polysomnography. CONCLUSIONS Overall, 60% of children with Down syndrome obtained a polysomnogram. There was no difference between groups by payer status or socioeconomic status. A significant difference in race distribution was noted. Proximity to the medical center and increased medical need appear to be associated with increased likelihood of obtaining a polysomnogram. This study illustrates the need for improvement initiatives to increase the proportion of patients receiving guideline-based screening.
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Affiliation(s)
- Philip D Knollman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Christine H Heubi
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Susan Wiley
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sally R Shott
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Stacey L Ishman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jareen Meinzen-Derr
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Reighard SD, Cranert SA, Rangel KM, Ali A, Gyurova IE, de la Cruz-Lynch AT, Tuazon JA, Khodoun MV, Kottyan LC, Smith DF, Brunner HI, Waggoner SN. Erratum: Therapeutic Targeting of Follicular T Cells with Chimeric Antigen Receptor-Expressing Natural Killer Cells. Cell Rep Med 2020; 1:100080. [PMID: 33205070 DOI: 10.1016/j.xcrm.2020.100080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
[This corrects the article DOI: 10.1016/j.xcrm.2020.100003.].
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Wu G, Ruben MD, Francey LJ, Smith DF, Sherrill JD, Oblong JE, Mills KJ, Hogenesch JB. A population-based gene expression signature of molecular clock phase from a single epidermal sample. Genome Med 2020; 12:73. [PMID: 32825850 PMCID: PMC7441562 DOI: 10.1186/s13073-020-00768-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 03/12/2020] [Accepted: 07/24/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND For circadian medicine to influence health, such as when to take a drug or undergo a procedure, a biomarker of molecular clock phase is required--one that is easily measured and generalizable across a broad population. It is not clear that any circadian biomarker yet satisfies these criteria. METHODS We analyzed 24-h molecular rhythms in human dermis and epidermis at three distinct body sites, leveraging both longitudinal (n = 20) and population (n = 154) data. We applied cyclic ordering by periodic structure (CYCLOPS) to order the population samples where biopsy time was not recorded. With CYCLOPS-predicted phases, we used ZeitZeiger to discover potential biomarkers of clock phase. RESULTS Circadian clock function was strongest in the epidermis, regardless of body site. We identified a 12-gene expression signature that reported molecular clock phase to within 3 h (mean error = 2.5 h) from a single sample of epidermis--the skin's most superficial layer. This set performed well across body sites, ages, sexes, and detection platforms. CONCLUSIONS This research shows that the clock in epidermis is more robust than dermis regardless of body site. To encourage ongoing validation of this putative biomarker in diverse populations, diseases, and experimental designs, we developed SkinPhaser--a user-friendly app to test biomarker performance in datasets ( https://github.com/gangwug/SkinPhaser ).
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Affiliation(s)
- Gang Wu
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Marc D Ruben
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - Lauren J Francey
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH, 45229, USA
| | - David F Smith
- Divisions of Pediatric Otolaryngology, Pulmonary Medicine, and the Sleep Center, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH, 45229, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA
| | - Joseph D Sherrill
- The Procter and Gamble Company, Mason Business Center, 8700 Mason Montgomery Road, Mason, OH, 45040, USA
| | - John E Oblong
- The Procter and Gamble Company, Mason Business Center, 8700 Mason Montgomery Road, Mason, OH, 45040, USA
| | - Kevin J Mills
- The Procter and Gamble Company, Mason Business Center, 8700 Mason Montgomery Road, Mason, OH, 45040, USA
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH, 45229, USA.
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Kappler K, Lasanajak Y, Smith DF, Opitz L, Hennet T. Increased Antibody Response to Fucosylated Oligosaccharides and Fucose-Carrying Bacteroides Species in Crohn's Disease. Front Microbiol 2020; 11:1553. [PMID: 32765449 PMCID: PMC7381230 DOI: 10.3389/fmicb.2020.01553] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/16/2020] [Indexed: 12/21/2022] Open
Abstract
Inflammatory bowel disease is associated with intestinal dysbiosis and with elevated antibody production toward microbial epitopes. The underlying processes linking the gut microbiota with inflammation are still unclear. Considering the constant induction of antibodies by gut microbial glycans, the aim of this study was to address whether the repertoire of carbohydrate-specific antibodies is altered in Crohn's disease or ulcerative colitis. IgG and IgM reactivities to oligosaccharides representative of mucosal glycans were tested in blood serum from 20 healthy control subjects, 17 ulcerative colitis patients, and 23 Crohn's disease patients using glycan arrays. An increased IgG and IgM reactivity toward fucosylated oligosaccharides was detected in Crohn's disease but not in ulcerative colitis. To address the antibody reactivity to the gut microbiota, IgG binding to members of a complex intestinal microbiota was measured and observed to be increased in sera of patients with Crohn's disease. Based on the elevated reactivity to fucosylated oligosaccharides, gut bacteria were tested for recognition by the fucose-binding Aleuria aurantia lectin. Bacteroides stercoris was detected in IgG- and lectin-positive fractions and reactivity of A. aurantia lectin was demonstrated for additional Bacteroides species. IgG reactivity to these Bacteroides species was significantly increased in inflammatory bowel disease patients, indicating that the increased reactivity to fucosylated oligosaccharides detected in Crohn's disease may be induced by fucose-carrying intestinal bacteria. Enhanced antibody response to fucosylated epitopes may have systemic effects by altering the binding of circulating antibodies to endogenous glycoproteins.
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Affiliation(s)
| | - Yi Lasanajak
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, United States
| | - David F. Smith
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, United States
| | - Lennart Opitz
- Functional Genomics Center Zurich, ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Thierry Hennet
- Institute of Physiology, University of Zurich, Zurich, Switzerland
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Li Z, Zhang Q, Ashline D, Zhu Y, Lasanajak Y, Chernova T, Reinhold V, Cummings RD, Wang PG, Ju T, Smith DF, Song X. Amplification and Preparation of Cellular O-Glycomes for Functional Glycomics. Anal Chem 2020; 92:10390-10401. [PMID: 32539345 DOI: 10.1021/acs.analchem.0c00632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mucin-type O-glycans play key roles in many cellular processes, and they are often altered in human diseases. A major challenge in studying the role of O-glycans through functional O-glycomics is the absence of a complete repertoire of the glycans that comprise the human O-glycome. Here we describe a cellular O-glycome preparation strategy, Preparative Cellular O-Glycome Reporter/Amplification (pCORA), that introduces 4-N3-Bn-GalNAc(Ac)3 as a novel precursor in large-scale cell cultures to generate usable amounts of O-glycans as a potential O-glycome factory. Cultured human non-small cell lung cancer (NSCLC) A549 cells take up the precursor, which is extended by cellular glycosyltransferases to produce 4-N3-Bn-α-O-glycans that are secreted into the culture medium. The O-glycan derivatives can be clicked with a fluorescent bifunctional tag that allows multidimensional HPLC purification and production of a tagged glycan library, representing the O-glycome of the corresponding cells. We obtained ∼5% conversion of precursor to O-glycans and purified a tagged O-glycan library of over 100 O-glycan derivatives, many of which were present in >100 nmol amounts and were sequenced by sequential MS fragmentation (MSn). These O-glycans were successfully printed onto epoxy glass slides as an O-glycome shotgun microarray. We used this novel array to explore binding activity of serum IgM in healthy persons and NSCLC patients at different cancer stages. This novel strategy provides access to complex O-glycans in significant quantities and may offer a new route to discovery of potential diagnostic disease biomarkers.
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Affiliation(s)
| | - Qing Zhang
- Department of Chemistry and Center for Diagnostics & Therapeutics, Georgia State University, 33 Gilmer Street SE, Atlanta, Georgia 30302, United States
| | - David Ashline
- College of Life Sciences and Agriculture, University of New Hampshire, 35 Colovos Road, Durham, New Hampshire 03824, United States
| | | | | | | | - Vernon Reinhold
- College of Life Sciences and Agriculture, University of New Hampshire, 35 Colovos Road, Durham, New Hampshire 03824, United States
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 25 Shattuck Street, Boston, Massachusetts 02115, United States
| | - Peng G Wang
- Department of Chemistry and Center for Diagnostics & Therapeutics, Georgia State University, 33 Gilmer Street SE, Atlanta, Georgia 30302, United States
| | - Tongzhong Ju
- Office of Biotechnology Products, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10001 New Hampshire Avenue, Silver Spring, Maryland 20993, United States
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Liu R, Sreenivasan C, Yu H, Sheng Z, Newkirk SJ, An W, Smith DF, Chen X, Wang D, Li F. Influenza D virus diverges from its related influenza C virus in the recognition of 9-O-acetylated N-acetyl- or N-glycolyl-neuraminic acid-containing glycan receptors. Virology 2020; 545:16-23. [PMID: 32174455 PMCID: PMC7174096 DOI: 10.1016/j.virol.2020.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 01/09/2020] [Revised: 02/21/2020] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
Influenza D virus (IDV) utilizes bovines as a primary reservoir with periodical spillover to other mammalian hosts. By using traditional hemagglutination assay coupled with sialoglycan microarray (SGM) platform and functional assays, we demonstrated that IDV is more efficient in recognizing both 9-O-acetylated N-acetylneuraminic acid (Neu5,9Ac2) and 9-O-acetylated N-glycolylneuraminic acid (Neu5Gc9Ac) than influenza C virus (ICV), a ubiquitous human pathogen. ICV seems to strongly prefer Neu5,9Ac2 over Neu5Gc9Ac. Since Neu5Gc9Ac is different from Neu5,9Ac2 only by an additional oxygen in the group at the C5 position, our results reveal that the hydroxyl group in Neu5Gc9Ac plays a critical role in determining receptor binding specificity, which as a result may discriminate IDV from ICV in communicating with 9-O-acetylated SAs. These findings shall provide a framework for further investigation towards better understanding of how newly discovered multiple-species-infecting IDV exploits natural 9-O-acetylated SA variations to expand its host range.
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Affiliation(s)
- Runxia Liu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Chithra Sreenivasan
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Hai Yu
- Department of Chemistry, University of California, Davis, CA, 95616, USA
| | - Zizhang Sheng
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, 10032, USA
| | - Simon J Newkirk
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Wenfeng An
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - David F Smith
- Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Xi Chen
- Department of Chemistry, University of California, Davis, CA, 95616, USA
| | - Dan Wang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA; BioSNTR, Brookings, SD, 57007, USA.
| | - Feng Li
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA; BioSNTR, Brookings, SD, 57007, USA.
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Graeter S, Schneider C, Verschoor D, von Däniken S, Seibold F, Yawalkar N, Villiger P, Dimitrov JD, Smith DF, Cummings RD, Simon HU, Vassilev T, von Gunten S. Enhanced Pro-apoptotic Effects of Fe(II)-Modified IVIG on Human Neutrophils. Front Immunol 2020; 11:973. [PMID: 32508840 PMCID: PMC7248553 DOI: 10.3389/fimmu.2020.00973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/29/2019] [Accepted: 04/24/2020] [Indexed: 01/04/2023] Open
Abstract
Mild modification of intravenous immunoglobulin (IVIG) has been reported to result in enhanced polyspecificity and leveraged therapeutic effects in animal models of inflammation. Here, we observed that IVIG modification by ferrous ions, heme or low pH exposure, shifted the repertoires of specificities in different directions. Ferrous ions exposed Fe(II)-IVIG, but not heme or low pH exposed IVIG, showed increased pro-apoptotic effects on neutrophil granulocytes that relied on a FAS-dependent mechanism. These effects were also observed in human neutrophils primed by inflammatory mediators or rheumatoid arthritis joint fluid in vitro, or patient neutrophils ex vivo from acute Crohn's disease. These observations indicate that IVIG-mediated effects on cells can be enhanced by IVIG modification, yet specific modification conditions may be required to target specific molecular pathways and eventually to enhance the therapeutic potential.
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Affiliation(s)
- Stefanie Graeter
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | | | | | | | - Frank Seibold
- Crohn-Colitis Zentrum, Hochhaus Lindenhofspital, Bern, Switzerland
| | - Nikhil Yawalkar
- Departement für Dermatologie, Urologie, Rheumatologie, Nephrologie, Physiologie, Inselspital Bern, University Hospital, Bern, Switzerland
| | - Peter Villiger
- Universitätsklinik für Rheumatologie, Immunologie und Allergologie, Inselspital Bern, University Hospital, Bern, Switzerland
| | - Jordan D Dimitrov
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - David F Smith
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
| | - Richard D Cummings
- Department of Surgery and Harvard Medical School Center for Glycoscience, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, United States.,Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, United States
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
| | - Tchavdar Vassilev
- Department of Immunology, Stefan Angelov Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.,Institute of Biology and Biomedicine, N. I. Lobachevsky University, Nizhniy Novgorod, Russia
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Smith DF, He S, Peddireddy NS, Vairavan Manickam P, Heubi CH, Shott SR, Cohen AP, Ishman SL. Effectiveness of pediatric drug-induced sleep endoscopy for REM-predominant obstructive sleep apnea. Sleep Breath 2020; 24:1705-1713. [PMID: 32277395 DOI: 10.1007/s11325-020-02056-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 08/29/2019] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
STUDY OBJECTIVES Because dexmedetomidine (DEX)-induced sedation mimics non-rapid eye movement (NREM) sleep, its utility in sedating children with REM-predominant disease is unclear. We sought to determine the effectiveness of pediatric drug-induced sleep endoscopy (DISE) using DEX and ketamine for children with REM-predominant OSA, specifically whether or not at least one site of obstruction could be identified. METHODS A retrospective case series of children without tonsillar hypertrophy undergoing DISE at a tertiary pediatric hospital from 10/2013 through 9/2015 who underwent subsequent surgery to address OSA with polysomnography (PSG) before and after. RESULTS We included 56 children, mean age 5.6±5.4 years, age range 0.1-17.4 years, mean BMI 20.3±7.4 kg/m2 (76±29 percentile). At least one site of obstruction was identified in all patients, regardless of REM- or NREM-predominance. The mean obstructive apnea-hypopnea index (oAHI) improved (12.6 ± 10.7 to 9.0 ± 14.0 events/h) in children with REM-predominant (P = 0.013) and NREM-predominant disease (21.3 ± 18.9 to 10.3 ± 16.2 events/h) (P = 0.008). The proportion of children with a postoperative oAHI < 5 was 53% and 55% for REM- and NREMpredominant OSA, respectively. Unlike children with NREM-predominant disease, children with REM-predominant disease had significant improvement in the mean saturation nadir (P < 0.001), total sleep time (P = 0.006), and sleep efficiency (P = 0.015). CONCLUSIONS For children with OSA without tonsillar hypertrophy, DISE using DEX/ketamine was useful to predict at least one site of obstruction, even for those with REM-predominant OSA. DISE-directed outcomes resulted in significant improvements in mean oAHI, total sleep time, sleep efficiency, saturation nadir, and the proportion with oAHI < 5, after surgery for some children with REM-predominant disease.
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Affiliation(s)
- David F Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Shan He
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Department of Otolaryngology, Shanghai Children's Hospital Affiliated with Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Nithin S Peddireddy
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
| | - P Vairavan Manickam
- Department of Otolaryngology-Head and Neck Surgery, Geisinger Medical Center, Danville, PA, USA
| | - Christine H Heubi
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Sally R Shott
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Aliza P Cohen
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA
| | - Stacey L Ishman
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA.
- Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 2018, Cincinnati, OH, 45229-2018, USA.
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Affiliation(s)
- Marc D Ruben
- Divisions of Human Genetics and Immunobiology, Center for Chronobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH 45229, USA
| | - David F Smith
- Divisions of Pediatric Otolaryngology and Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati School of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267, USA
| | - Garret A FitzGerald
- Department of Systems Pharmacology and Translational Therapeutics, at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA. .,Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.,Institute for Translational Medicine and Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Center for Chronobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 240 Albert Sabin Way, Cincinnati, OH 45229, USA.
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Olejarz W, Głuszko A, Cyran A, Bednarek-Rajewska K, Proczka R, Smith DF, Ishman SL, Migacz E, Kukwa W. TLRs and RAGE are elevated in carotid plaques from patients with moderate-to-severe obstructive sleep apnea syndrome. Sleep Breath 2020; 24:1573-1580. [PMID: 32076951 PMCID: PMC7679342 DOI: 10.1007/s11325-020-02029-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 10/03/2019] [Revised: 02/02/2020] [Accepted: 02/05/2020] [Indexed: 12/12/2022]
Abstract
Background There is growing evidence that obstructive sleep apnea (OSA) promotes vascular endothelial dysfunction and atherogenesis. Pathways that mediate this pathology may include Toll-like receptors (TLRs) and receptor for advanced glycation end products (RAGE) which play a significant role in proinflammatory processes. The aim of this study was to measure the expression of the above-mentioned receptors in relation to OSA severity in carotid plaques obtained during open endarterectomy. Methods This prospective study included patients with a sleep study prior to surgery and a plaque specimen obtained during standard open endarterectomy. Immunohistochemistry of TLR2, TLR4, TLR7, TLR9, RAGE, HMGB1, and NF-κB was performed on atherosclerotic plaques from carotid arteries of patients with and without OSA. Results There were 46 patients (22 women, mean age 73.2 ± 1.3 years): 14 control patients, 13 with mild, 11 with moderate, and 8 with severe OSA. The expression of all TLRs and RAGE increased proportionately with increasing OSA severity. The largest differences between patients with severe OSA and no OSA were found for TLR2 (2.88 ± 0.35 vs. 1.27 ± 0.47, p < 0.001), TLR4 (2.88 ± 0.35 vs. 1.64 ± 0.5, p < 0.001), TLR9 (2.38 ± 0.52 vs. 1.45 ± 0.52, p < 0.01), and RAGE (2.5 ± 0.53 vs. 1.82 ± 0.6, p < 0.05). Conclusion TLR2, TLR4, TLR9, and RAGE expression was significantly increased in carotid plaques of patients with moderate-to-severe OSA when compared with control patients with no OSA and those with mild OSA. TLR and RAGE-mediated pathways may play a significant role in OSA-dependent atherogenesis.
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Affiliation(s)
- Wioletta Olejarz
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland. .,Centre for Preclinical Research, Medical University of Warsaw, 02-097, Warsaw, Poland.
| | - Alicja Głuszko
- Centre for Preclinical Research, Medical University of Warsaw, 02-097, Warsaw, Poland.,Chair and Department of Biochemistry, Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Agata Cyran
- Department of Pathology, Medical University of Warsaw, Warsaw, Poland
| | | | - Robert Proczka
- Cardiology Center Jozefow, American Heart of Poland, Warsaw, Poland
| | - David F Smith
- Divisions of Pediatric Otolaryngology and Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati School of Medicine, Cincinnati, OH, 45229, USA
| | - Stacey L Ishman
- Divisions of Pediatric Otolaryngology and Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati School of Medicine, Cincinnati, OH, 45229, USA
| | - Ewa Migacz
- Department of Otorhinolaryngology, Faculty of Dental Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Kukwa
- Department of Otorhinolaryngology, Faculty of Dental Medicine, Medical University of Warsaw, Warsaw, Poland
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43
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Zhang Y, Zhu Y, Lasanajak Y, Smith DF, Song X. O-Benzylhydroxylamine (BHA) as a Cleavable Tag for Isolation and Purification of Reducing Glycans. SLAS Technol 2020; 25:388-396. [PMID: 31959063 DOI: 10.1177/2472630319898150] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Glycoscience has been recognized as an important area in biomedical research. Currently, a major obstacle for glycoscience study is the lack of diverse, biomedically relevant, and complex glycans in quantities sufficient for exploring their structural and functional aspects. Complementary to chemoenzymatic synthesis, natural glycans could serve as a great source of biomedically relevant glycans if they are available in sufficient quantities. We have recently developed oxidative release of natural glycans (ORNG) for large-scale release of N-glycans as free reducing glycans. While free reducing glycans can be readily derivatized with ultraviolet or fluorescent tags for high-performance liquid chromatography (HPLC) and mass spectrometry (MS) analysis, it is difficult to remove tags for the regeneration of free reducing glycans without affecting the structural integrity of glycans. To address this inconvenience, we explored the use of a cleavable tag, O-benzylhydroxylamine (BHA). Free reducing glycans are easily and efficiently labeled with BHA under mild conditions, enabling UV detection during HPLC purification. Individual glycan-BHA conjugates can then be separated using multidimensional HPLC and characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and MS/MS. The BHA tag can then be easily removed by palladium-on-carbon (Pd/C)-catalyzed hydrogenation to efficiently regenerate free reducing glycans with little effect on glycan structures. This procedure provides a simple and straightforward way to tag free reducing glycans for purification at a preparative scale using multidimensional HPLC and subsequently recover purified free reducing glycans.
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Affiliation(s)
- Ying Zhang
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, USA.,Educational Ministry Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi'an, China
| | - Yuyang Zhu
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, USA
| | - Yi Lasanajak
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, USA
| | - David F Smith
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, USA
| | - Xuezheng Song
- Department of Biochemistry, Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, GA, USA
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Affiliation(s)
- David F Smith
- Divisions of Pediatric Otolaryngology-Head and Neck Surgery and Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati School of Medicine, Cincinnati, Ohio
| | - Marc D Ruben
- Division of Human Genetics and Immunobiology, Center for Chronobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Lauren J Francey
- Division of Human Genetics and Immunobiology, Center for Chronobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Olivia J Walch
- Department of Neurology, University of Michigan Medical School, Ann Arbor, Michigan
| | - John B Hogenesch
- Division of Human Genetics and Immunobiology, Center for Chronobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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45
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Zhang Q, Li Z, Chernova T, Saikam V, Cummings R, Song X, Ju T, Smith DF, Wang PG. Synthesis and Characterization of Versatile O-Glycan Precursors for Cellular O-Glycomics. ACS Synth Biol 2019; 8:2507-2513. [PMID: 31638776 DOI: 10.1021/acssynbio.9b00168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Protein O-glycosylation is a universal post-translational modification and plays essential roles in many biological processes. Recently we reported a technology termed cellular O-glycome reporter/amplification (CORA) to amplify and profile mucin-type O-glycans of living cells growing in the presence of peracetylated Benzyl-α-GalNAc (Ac3GalNAc-α-Bn). However, the application and development of the CORA method are limited by the properties of the precursor benzyl aglycone, which is relatively inert to further chemical modifications. Here we described a rapid parallel microwave-assisted synthesis of Ac3GalNAc-α-Bn derivatives to identify versatile precursors for cellular O-glycomics. In total, 26 derivatives, including fluorescent and bioorthogonal reactive ones, were successfully synthesized. The precursors were evaluated for their activity as acceptors for T-synthase and for their ability to function as CORA precursors. Several of the precursors possessing useful functional groups were more efficient than Ac3GalNAc-α-Bn as T-synthase acceptors and cellular O-glycome reporters. These precursors will advance the CORA technology for studies of functional O-glycomics.
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Affiliation(s)
- Qing Zhang
- Department of Chemistry and Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, Georgia 30302, United States
| | - Zhonghua Li
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Tatiana Chernova
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Varma Saikam
- Department of Chemistry and Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, Georgia 30302, United States
| | - Richard Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xuezheng Song
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Tongzhong Ju
- Office of Biotechnology Products, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - David F. Smith
- Emory Comprehensive Glycomics Core, Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Peng G. Wang
- Department of Chemistry and Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, Georgia 30302, United States
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46
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Howard JJM, Sarber KM, Yu W, Smith DF, Tikhtman RO, Simakajornboon N, Ishman SL. Outcomes in children with down syndrome and mild obstructive sleep apnea treated non-surgically. Laryngoscope 2019; 130:1828-1835. [PMID: 31603543 DOI: 10.1002/lary.28325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 08/27/2019] [Accepted: 09/06/2019] [Indexed: 11/10/2022]
Abstract
OBJECTIVES Nasal steroids, oral anti-leukotrienes and supplemental oxygen are effective in the treatment of mild obstructive sleep apnea (OSA) in otherwise healthy children. However, their efficacy is unknown in children with Down syndrome (DS). Here we examine the effect of single medication therapy versus observation versus oxygen on polysomnographic outcomes in these children. METHODS We reviewed children (<18 years) diagnosed with DS and mild OSA (obstructive apnea-hypopnea index [oAHI] ≥1 to <5 events/hour) treated non-surgically (with supplemental oxygen, one medication, or observation) between 2012 and 2017. Demographic data, comorbid diagnoses, and pre- and posttreatment polysomnograms were analyzed. We assessed pre- and posttreatment oAHI, oxyhemoglobin saturation nadir, percent total sleep time (%TST) in rapid eye movement (REM), and end-tidal carbon dioxide (ETCO2 ) >50 mmHg. RESULTS Twenty-four children met inclusion criteria; 10 treated with medication, one with oxygen, and 13 with observation (baseline oAHI was 3.5, 3.3, and 2.9 events/hour, respectively). There was no significant change in oAHI, oxyhemoglobin saturation nadir, ETCO2 , or percent TST in REM after treatment for any treatment group (P = .21-.94). There was no association between reported symptoms and AHI severity or change in AHI. OSA resolved in one patient treated with observation and two treated with medication, but worsened in two each in the medication and observation groups. Resolution of OSA occurred in 20% treated with medication, 7.7% with observation, and 0% with oxygen (P = .82). CONCLUSION In our cohort, resolution of mild OSA was low. This suggests that consideration should be given to multimodality treatments in children with DS and mild OSA. Prospective studies will help establish effectiveness in this cohort. LEVEL OF EVIDENCE 4 Laryngoscope, 130:1828-1835, 2020.
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Affiliation(s)
- Javier J M Howard
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, U.S.A
| | - Kathleen M Sarber
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A.,Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A
| | - Wenwen Yu
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A.,Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - David F Smith
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, U.S.A.,Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A.,Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A
| | - Raisa O Tikhtman
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, U.S.A
| | - Narong Simakajornboon
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A
| | - Stacey L Ishman
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio, U.S.A.,Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A.,Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A
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Jégouzo SAF, Feinberg H, Morrison AG, Holder A, May A, Huang Z, Jiang L, Lasanajak Y, Smith DF, Werling D, Drickamer K, Weis WI, Taylor ME. CD23 is a glycan-binding receptor in some mammalian species. J Biol Chem 2019; 294:14845-14859. [PMID: 31488546 PMCID: PMC6791321 DOI: 10.1074/jbc.ra119.010572] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 08/08/2019] [Revised: 08/30/2019] [Indexed: 01/25/2023] Open
Abstract
CD23, the low-affinity IgE receptor found on B lymphocytes and other cells, contains a C-terminal lectin-like domain that resembles C-type carbohydrate-recognition domains (CRDs) found in many glycan-binding receptors. In most mammalian species, the CD23 residues required to form a sugar-binding site are present, although binding of CD23 to IgE does not involve sugars. Solid-phase binding competition assays, glycoprotein blotting experiments, and glycan array analysis employing the lectin-like domains of cow and mouse CD23 demonstrate that they bind to mannose, GlcNAc, glucose, and fucose and to glycoproteins that bear these sugars in nonreducing terminal positions. Crystal structures of the cow CRD in the presence of α-methyl mannoside and GlcNAcβ1-2Man reveal that a range of oligosaccharide ligands can be accommodated in an open binding site in which most interactions are with a single terminal sugar residue. Although mouse CD23 shows a pattern of monosaccharide and glycoprotein binding similar to cow CD23, the binding is weaker. In contrast, no sugar binding was observed in similar experiments with human CD23. The absence of sugar-binding activity correlates with accumulation of mutations in the gene for CD23 in the primate lineage leading to humans, resulting in loss of key sugar-binding residues. These results are consistent with a role for CD23 in many species as a receptor for potentially pathogenic microorganisms as well as IgE. However, the ability of CD23 to bind several different ligands varies between species, suggesting that it has distinct functions in different organisms.
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Affiliation(s)
- Sabine A F Jégouzo
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Hadar Feinberg
- Departments of Structural Biology and Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305
| | - Andrew G Morrison
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Angela Holder
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hatfield, Hertfordshire AL9 7TA, United Kingdom
| | - Alisha May
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Zhiyao Huang
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Linghua Jiang
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Yi Lasanajak
- Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, Georgia 30322
| | - David F Smith
- Emory Comprehensive Glycomics Core, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Dirk Werling
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hatfield, Hertfordshire AL9 7TA, United Kingdom
| | - Kurt Drickamer
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - William I Weis
- Departments of Structural Biology and Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305
| | - Maureen E Taylor
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
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Abstract
Fundamental aspects of neurobiology are time-of-day regulated. Therefore, it is not surprising that neurodegenerative and psychiatric diseases are accompanied by sleep and circadian rhythm disruption. Although the direction of causation remains unclear, abnormal sleep-wake patterns often occur early in disease, exacerbate progression, and are a common primary complaint from patients. Circadian medicine incorporates knowledge of 24-hour biological rhythms to improve treatment. This article highlights how research and technologic advances in circadian biology might translate to improved patient care.
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49
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Smith DF, Sarber KM, Spiceland CP, Ishman SL, Augelli DM, Romaker AM. Effects of Medical Therapy on Mild Obstructive Sleep Apnea in Adult Patients. J Clin Sleep Med 2019; 15:979-983. [PMID: 31383235 DOI: 10.5664/jcsm.7876] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/07/2019] [Indexed: 01/18/2023]
Abstract
STUDY OBJECTIVES Patients with obstructive sleep apnea (OSA) have been shown to have high levels of inflammatory markers. Anti-inflammatory treatment with montelukast and intranasal steroids have demonstrated efficacy for mild OSA in children; this has not been fully evaluated in adults. This study investigated the response of mild OSA in adults to anti-inflammatory medical therapy. METHODS Adults aged ≥ 21 years with an apnea-hypopnea index (AHI) ≤ 15 events/h on polysomnography (PSG) were recruited to a prospective double-blind, randomized control trial. Patients were treated for 12 weeks with montelukast and fluticasone or placebo. All underwent a pretreatment and posttreatment PSG. Epworth Sleepiness Scale (ESS) score was obtained pretreatment and at 6 and 12 weeks posttreatment. RESULTS A total of 26 patients completed the study with 13 in each group. Mean age in the treatment and placebo groups were 58.3 ± 10.3 and 54.8 ± 14 years, respectively. There was no significant difference between groups reporting nasal congestion (P = .186), rhinitis (P = .666), or snoring (P = .177). There was no difference in the pretreatment ESS score (P = .077), body mass index (P = .173), or AHI (P = .535). The posttreatment PSG in the treatment group demonstrated a significant increase in total sleep time (P = .02) and percent of stage R sleep (P = .05). Neither group showed significant change in AHI. In patients in the treatment group, the 6- and 12-week follow-up ESS scores were not significantly different from pretreatment scores (P = .37-.46). CONCLUSIONS Intranasal steroids and montelukast did not decrease AHI; however, total sleep time and percent of stage R sleep significantly increased. Self-reported improvement could be explained by observed changes in sleep parameters. Larger prospective studies could help elucidate the effects of medical therapy on adult patients with OSA. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Title: Montelukast and Nasa ICS for Treatment of Mild Obstructive Sleep Apnea in Adults; Identifier: NCT01089647; URL: https://clinicaltrials.gov/ct2/show/record/NCT01089647.
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Affiliation(s)
- David F Smith
- Division of Pediatric Otolaryngology, Department of Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Kathleen M Sarber
- Division of Pediatric Otolaryngology, Department of Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | - Stacey L Ishman
- Division of Pediatric Otolaryngology, Department of Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Ann M Romaker
- Department of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
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50
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Yan M, Zhu Y, Liu X, Lasanajak Y, Xiong J, Lu J, Lin X, Ashline D, Reinhold V, Smith DF, Song X. Next-Generation Glycan Microarray Enabled by DNA-Coded Glycan Library and Next-Generation Sequencing Technology. Anal Chem 2019; 91:9221-9228. [PMID: 31187982 DOI: 10.1021/acs.analchem.9b01988] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Interactions of glycans with proteins, cells, and microorganisms play important roles in cell-cell adhesion and host-pathogen interaction. Glycan microarray technology, in which multiple glycan structures are immobilized on a single glass slide and interrogated with glycan-binding proteins (GBPs), has become an indispensable tool in the study of protein-glycan interactions. Despite its great success, the current format of the glycan microarray requires expensive, specialized instrumentation and labor-intensive assay and image processing procedures, which limit automation and possibilities for high-throughput analyses. Furthermore, the current microarray is not suitable for assaying interaction with intact cells due to their large size compared to the two-dimensional microarray surface. To address these limitations, we developed the next-generation glycan microarray (NGGM) based on artificial DNA coding of glycan structures. In this novel approach, a glycan library is presented as a mixture of glycans and glycoconjugates, each of which is coded with a unique oligonucleotide sequence (code). The glycan mixture is interrogated by GBPs followed by the separation of unbound coded glycans. The DNA sequences that identify individual bound glycans are quantitatively sequenced (decoded) by powerful next-generation sequencing (NGS) technology, and copied numbers of the DNA codes represent relative binding specificities of corresponding glycan structures to GBPs. We demonstrate that NGGM generates glycan-GBP binding data that are consistent with that generated in a slide-based glycan microarray. More importantly, the solution phase binding assay is directly applicable to identifying glycan binding to intact cells, which is often challenging using glass slide-based glycan microarrays.
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Affiliation(s)
| | | | | | | | | | | | | | - David Ashline
- College of Life Sciences and Agriculture , University of New Hampshire , Durham , New Hampshire 03824 , United States
| | - Vernon Reinhold
- College of Life Sciences and Agriculture , University of New Hampshire , Durham , New Hampshire 03824 , United States
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