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Yumani DFJ, Walschot FH, Lafeber HN, van Weissenbruch MM. Associations between Bronchopulmonary Dysplasia, Insulin-like Growth Factor I and Nutrition. Nutrients 2024; 16:957. [PMID: 38612991 PMCID: PMC11013493 DOI: 10.3390/nu16070957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Insulin-like growth factor I (IGF-I) has been suggested as an important factor in the pathogenesis of bronchopulmonary dysplasia (BPD). In turn, nutrition has been associated with IGF-I levels and could be of importance in the pathogenesis of BPD. This study aimed to explore the association between nutrition, the IGF-I axis and the occurrence of BPD. Eighty-six preterm infants (44 male, mean gestational age: 29.0 weeks (standard deviation: 1.7 weeks)) were enrolled in an observational study. Serum IGF-I (µg/L) and insulin-like growth factor binding protein 3 (IGFBP-3; mg/L) were measured at birth and at 2, 4 and 6 weeks postnatal age. BPD was diagnosed at 36 weeks postmenstrual age. Twenty-nine infants were diagnosed with BPD. For every µg/L per week increase in IGF-I, the odds of BPD decreased (0.68, 95% CI 0.48-0.96, corrected for gestational age). The change in IGF-I in µg/L/week, gestational age in weeks and a week of predominant donor human milk feeding were associated with the occurrence of BPD in the multivariable analysis (respectively, OR 0.63 (0.43-0.92), OR 0.44 (0.26-0.76) and 7.6 (1.2-50.4)). IGFBP-3 was not associated with the occurrence of BPD in the multivariable analysis. In conclusion, a slow increase in IGF-I levels and a lower gestational age increase the odds of BPD. Donor human milk might increase the odds of BPD and should be further explored.
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Affiliation(s)
- Dana F. J. Yumani
- Division of Neonatology, Department of Pediatrics, Location VU University Medical Center, Amsterdam University Medical Centers, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (F.H.W.); (M.M.v.W.)
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Mohamed AA, Nour AA, Mosbah NM, Wahba ASM, Esmail OE, Eysa B, Heiba A, Samir HH, El-Kassas AA, Adroase AS, Elamir AY, Mahmoud GM, Rafaat RS, Hassan HA, El Abd YS. Evaluation of circulating insulin-like growth factor-1, heart-type fatty acid-binding protein, and endotrophin levels as prognostic markers of COVID-19 infection severity. Virol J 2023; 20:94. [PMID: 37189123 PMCID: PMC10183690 DOI: 10.1186/s12985-023-02057-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Coronavirus Disease 2019 (COVID-19) is a worldwide pandemic challenge spreading enormously within a few months. COVID-19 is characterized by the over-activation of the immune system causing cytokine storm. Insulin-like growth factor-1 (IGF-1) pathway can regulate the immune response via interaction with various implicated cytokines. Heart-type fatty acid-binding protein (H-FABP) has been shown to promote inflammation. Given the fact that coronavirus infections induce cytokines secretion leading to inflammatory lung injury, it has been suggested that H-FABP levels are affected by COVID-19 severity. Moreover, endotrophin (ETP), the cleavage product of collagen VI, may be an indicator of an overactive repair process and fibrosis, considering that viral infection may predispose or exacerbate existing respiratory conditions, including pulmonary fibrosis. This study aims to assess the prognostic capacity of circulating IGF-1, HFABP, and ETP, levels for COVID-19 severity progression in Egyptian patients. METHODS The study cohort included 107 viral RNA-positive patients and an equivalent number of control individuals with no clinical signs of infection. Clinical assessments included profiling of CBC; serum iron; liver and kidney functions; inflammatory markers. Circulating levels of IGF-1; H-FABP, and ETP were estimated using the corresponding ELISA kits. RESULTS No statistical difference in the body mass index was detected between the healthy and control groups, while the mean age of infected patients was significantly higher (P = 0.0162) than the control. Patients generally showed elevated levels of inflammatory markers including CRP and ESR concomitant with elevated serum ferritin; D dimer and procalcitonin levels, besides the COVID-19 characteristic lymphopenia and hypoxemia were also frequent. Logistic regression analysis revealed that oxygen saturation; serum IGF-1, and H-FABP can significantly predict the infection progression (P < 0.001 each). Both serum IGF-1 and H-FABP as well as O2 saturation showed remarkable prognostic potentials in terms of large AUC values, high sensitivity/specificity values, and wide confidence interval. The calculated threshold for severity prognosis was 25.5 ng/mL; 19.5 ng/mL, 94.5, % and for IGF-1, H-FABP, and O2 saturation; respectively. The calculated thresholds of serum IGF-1; H-FABP, and O2 saturation showed positive and negative value ranges of 79-91% and 72-97%; respectively, with 66-95%, 83-94% sensitivity, and specificity; respectively. CONCLUSION The calculated cut-off values of serum IGF-1 and H-FABP represent a promising non-invasive prognostic tool that would facilitate the risk stratification in COVID-19 patients, and control the morbidity/mortality associated with progressive infection.
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Affiliation(s)
- Amal A Mohamed
- Biochemistry and Molecular Biology Department, National Hepatology and Tropical Medicine Institute, Cairo, Egypt
| | - Aya A Nour
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Noha M Mosbah
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Alaa S M Wahba
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Omnia E Esmail
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Basem Eysa
- Gastroenterology and Hepatology Department, National Hepatology and Tropical Medicine Institute, Cairo, Egypt
| | - Ahmed Heiba
- Internal Medicine Department, Medicine and Clinical Studies Research Institute, National Research Centre, Cairo, Egypt
| | - Hussin H Samir
- Nephrology Unit, Internal Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Ahmed S Adroase
- Clinical Pathology Department, El-Sahel Teaching Hospital, Cairo, Egypt
| | - Ahmed Y Elamir
- Radiology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ghada M Mahmoud
- Clinical Pathology Department, Faculty of Medicine, Benha University, Benha, Egypt
| | - Rasha S Rafaat
- Neurology and Psychiatry Department, Faculty of Medicine, Minia University, Minia, Egypt
| | - Hatem A Hassan
- Gastroenterology and Hepatology, Internal Medicine Department, Faculty of Medicine, Minia University, Minia, Egypt
| | - Yasmine S El Abd
- Microbial Biotechnology Department, Biotechnology Research Institute, National Research Centre, Cairo, Egypt.
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Gorgisen G, Aydin M, Mboma O, Gökyildirim MY, Chao CM. The Role of Insulin Receptor Substrate Proteins in Bronchopulmonary Dysplasia and Asthma: New Potential Perspectives. Int J Mol Sci 2022; 23:ijms231710113. [PMID: 36077511 PMCID: PMC9456457 DOI: 10.3390/ijms231710113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 01/12/2023] Open
Abstract
Insulin receptor substrates (IRSs) are proteins that are involved in signaling through the insulin receptor (IR) and insulin-like growth factor (IGFR). They can also interact with other receptors including growth factor receptors. Thus, they represent a critical node for the transduction and regulation of multiple signaling pathways in response to extracellular stimuli. In addition, IRSs play a central role in processes such as inflammation, growth, metabolism, and proliferation. Previous studies have highlighted the role of IRS proteins in lung diseases, in particular asthma. Further, the members of the IRS family are the common proteins of the insulin growth factor signaling cascade involved in lung development and disrupted in bronchopulmonary dysplasia (BPD). However, there is no study focusing on the relationship between IRS proteins and BPD yet. Unfortunately, there is still a significant gap in knowledge in this field. Thus, in this review, we aimed to summarize the current knowledge with the major goal of exploring the possible roles of IRS in BPD and asthma to foster new perspectives for further investigations.
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Affiliation(s)
- Gokhan Gorgisen
- Department of Medical Genetics, Faculty of Medicine, Van Yüzüncü Yil University, Van 65080, Turkey
| | - Malik Aydin
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Research, School of Life Sciences (ZBAF), Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
| | - Olivier Mboma
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Research, School of Life Sciences (ZBAF), Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
| | - Mira Y. Gökyildirim
- Department of Pediatrics, University Medical Center Rostock, University of Rostock, 18057 Rostock, Germany
| | - Cho-Ming Chao
- Department of Pediatrics, University Medical Center Rostock, University of Rostock, 18057 Rostock, Germany
- Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus Liebig University Giessen, 35390 Giessen, Germany
- Correspondence: ; Tel.: +49-641-9946735
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Vohlen C, Mohr J, Fomenko A, Kuiper-Makris C, Grzembke T, Aydogmus R, Wilke R, Hirani D, Dötsch J, Alejandre Alcazar MA. Dynamic Regulation of GH-IGF1 Signaling in Injury and Recovery in Hyperoxia-Induced Neonatal Lung Injury. Cells 2021; 10:2947. [PMID: 34831169 PMCID: PMC8616454 DOI: 10.3390/cells10112947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 12/28/2022] Open
Abstract
Prematurely born infants often require supplemental oxygen that impairs lung growth and results in arrest of alveolarization and bronchopulmonary dysplasia (BPD). The growth hormone (GH)- and insulin-like growth factor (IGF)1 systems regulate cell homeostasis and organ development. Since IGF1 is decreased in preterm infants, we investigated the GH- and IGF1 signaling (1) in newborn mice with acute and prolonged exposure to hyperoxia as well as after recovery in room air; and (2) in cultured murine lung epithelial cells (MLE-12) and primary neonatal lung fibroblasts (pLFs) after treatment with GH, IGF1, and IGF1-receptor (IGF1-R) inhibitor or silencing of GH-receptor (Ghr) and Igf1r using the siRNA technique. We found that (1) early postnatal hyperoxia caused an arrest of alveolarization that persisted until adulthood. Both short-term and prolonged hyperoxia reduced GH-receptor expression and STAT5 signaling, whereas Igf1 mRNA and pAKT signaling were increased. These findings were related to a loss of epithelial cell markers (SFTPC, AQP5) and proliferation of myofibroblasts (αSMA+ cells). After recovery, GH-R-expression and STAT5 signaling were activated, Igf1r mRNA reduced, and SFTPC protein significantly increased. Cell culture studies showed that IGF1 induced expression of mesenchymal (e.g., Col1a1, Col4a4) and alveolar epithelial cell type I (Hopx, Igfbp2) markers, whereas inhibition of IGF1 increased SFTPC and reduced AQP5 in MLE-12. GH increased Il6 mRNA and reduced proliferation of pLFs, whereas IGF1 exhibited the opposite effect. In summary, our data demonstrate an opposite regulation of GH- and IGF1- signaling during short-term/prolonged hyperoxia-induced lung injury and recovery, affecting alveolar epithelial cell differentiation, inflammatory activation of fibroblasts, and a possible uncoupling of the GH-IGF1 axis in lungs after hyperoxia.
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Affiliation(s)
- Christina Vohlen
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
- Department of Pediatric and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
- The German Centre for Lung Research (DZL), Institute for Lung Health, University of Giessen and Marburg Lung Centre (UGMLC), Justus-Liebig University Gießen, 35392 Gießen, Germany
| | - Jasmine Mohr
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Alexey Fomenko
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Celien Kuiper-Makris
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
- Department of Pediatric and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
| | - Tiffany Grzembke
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Rabia Aydogmus
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Rebecca Wilke
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Dharmesh Hirani
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
| | - Jörg Dötsch
- Department of Pediatric and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
| | - Miguel A. Alejandre Alcazar
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (C.V.); (J.M.); (A.F.); (C.K.-M.); (T.G.); (R.A.); (R.W.); (D.H.)
- The German Centre for Lung Research (DZL), Institute for Lung Health, University of Giessen and Marburg Lung Centre (UGMLC), Justus-Liebig University Gießen, 35392 Gießen, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Cologne Excellence Cluster for Stress Responses in Ageing-Associated Diseases (CECAD), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
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Bonadies L, Zaramella P, Porzionato A, Perilongo G, Muraca M, Baraldi E. Present and Future of Bronchopulmonary Dysplasia. J Clin Med 2020; 9:jcm9051539. [PMID: 32443685 PMCID: PMC7290764 DOI: 10.3390/jcm9051539] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/04/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common respiratory disorder among infants born extremely preterm. The pathogenesis of BPD involves multiple prenatal and postnatal mechanisms affecting the development of a very immature lung. Their combined effects alter the lung's morphogenesis, disrupt capillary gas exchange in the alveoli, and lead to the pathological and clinical features of BPD. The disorder is ultimately the result of an aberrant repair response to antenatal and postnatal injuries to the developing lungs. Neonatology has made huge advances in dealing with conditions related to prematurity, but efforts to prevent and treat BPD have so far been only partially effective. Seeing that BPD appears to have a role in the early origin of chronic obstructive pulmonary disease, its prevention is pivotal also in long-term respiratory outcome of these patients. There is currently some evidence to support the use of antenatal glucocorticoids, surfactant therapy, protective noninvasive ventilation, targeted saturations, early caffeine treatment, vitamin A, and fluid restriction, but none of the existing strategies have had any significant impact in reducing the burden of BPD. New areas of research are raising novel therapeutic prospects, however. For instance, early topical (intratracheal or nebulized) steroids seem promising: they might help to limit BPD development without the side effects of systemic steroids. Evidence in favor of stem cell therapy has emerged from several preclinical trials, and from a couple of studies in humans. Mesenchymal stromal/stem cells (MSCs) have revealed a reparatory capability, preventing the progression of BPD in animal models. Administering MSC-conditioned media containing extracellular vesicles (EVs) have also demonstrated a preventive action, without the potential risks associated with unwanted engraftment or the adverse effects of administering cells. In this paper, we explore these emerging treatments and take a look at the revolutionary changes in BPD and neonatology on the horizon.
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Affiliation(s)
- Luca Bonadies
- Neonatal Intensive Care Unit, Department of Women’s and Children’s Health, University of Padova, 35128 Padova, Italy; (L.B.); (P.Z.)
| | - Patrizia Zaramella
- Neonatal Intensive Care Unit, Department of Women’s and Children’s Health, University of Padova, 35128 Padova, Italy; (L.B.); (P.Z.)
| | - Andrea Porzionato
- Human Anatomy Section, Department of Neurosciences, University of Padova, 35128 Padova, Italy;
| | - Giorgio Perilongo
- Department of Women’s and Children’s Health, University of Padova, 35128 Padova, Italy;
| | - Maurizio Muraca
- Institute of Pediatric Research “Città della Speranza”, Stem Cell and Regenerative Medicine Laboratory, Department of Women’s and Children’s Health, University of Padova, 35128 Padova, Italy;
| | - Eugenio Baraldi
- Neonatal Intensive Care Unit, Department of Women’s and Children’s Health, University of Padova, 35128 Padova, Italy; (L.B.); (P.Z.)
- Correspondence: ; Tel.: +39-049-821-3560; Fax: +39-049-821-3502
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Seedorf G, Kim C, Wallace B, Mandell EW, Nowlin T, Shepherd D, Abman SH. rhIGF-1/BP3 Preserves Lung Growth and Prevents Pulmonary Hypertension in Experimental Bronchopulmonary Dysplasia. Am J Respir Crit Care Med 2020; 201:1120-1134. [PMID: 32101461 PMCID: PMC7193843 DOI: 10.1164/rccm.201910-1975oc] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/25/2020] [Indexed: 12/03/2022] Open
Abstract
Rationale: Antenatal factors, such as chorioamnionitis, preeclampsia, and postnatal injury, are associated with an increased risk for bronchopulmonary dysplasia (BPD) and pulmonary hypertension (PH) after preterm birth. IGF-1 (insulin-like growth factor-1) is markedly decreased in normal preterm infants, but whether IGF-1 treatment can prevent BPD or PH is unknown.Objectives: To evaluate whether postnatal treatment with rhIGF-1 (recombinant human IGF-1)/BP3 (binding peptide 3) improves lung growth and prevents PH in two antenatal models of BPD induced by intraamniotic exposure to endotoxin (ETX) or sFlt-1 (soluble fms-like tyrosine kinase 1), and in a postnatal model due to prolonged hyperoxia.Methods: ETX or sFlt-1 were administered into the amniotic sac of pregnant rats at Embryonic Day 20 to simulate antenatal models of chorioamnionitis and preeclampsia, respectively. Pups were delivered by cesarean section at Embryonic Day 22 and treated with rhIGF-1/BP3 (0.02-20 mg/kg/d intraperitoneal) or buffer for 2 weeks. Study endpoints included radial alveolar counts (RACs), vessel density, and right ventricular hypertrophy (RVH). Direct effects of rhIGF-1/BP3 (250 ng/ml) on fetal lung endothelial cell proliferation and tube formation and alveolar type 2 cell proliferation were studied by standard methods in vitro.Measurements and Main Results: Antenatal ETX and antenatal sFlt-1 reduced RAC and decreased RVH in infant rats. In both models, postnatal rhIGF-1/BP3 treatment restored RAC and RVH to normal values when compared with placebo injections. rhIGF-1/BP3 treatment also preserved lung structure and prevented RVH after postnatal hyperoxia. In vitro studies showed that rhIGF-1/BP3 treatment increased lung endothelial cell and alveolar type 2 cell proliferation.Conclusions: Postnatal rhIGF-1/BP3 treatment preserved lung structure and prevented RVH in antenatal and postnatal BPD models. rhIGF-1/BP3 treatment may provide a novel strategy for the prevention of BPD in preterm infants.
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Affiliation(s)
| | - Christina Kim
- Pediatric Heart Lung Center
- Department of Surgery, and
| | | | | | | | - Douglas Shepherd
- Pediatric Heart Lung Center
- Department of Pharmacology, University of Colorado Anschutz Medical Center and Children’s Hospital Colorado, Aurora, Colorado; and
- Department of Physics, Center for Biological Physics, Arizona State University, Tempe, Arizona
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Wang J, Yin J, Wang X, Liu H, Hu Y, Yan X, Zhuang B, Yu Z, Han S. Changing expression profiles of mRNA, lncRNA, circRNA, and miRNA in lung tissue reveal the pathophysiological of bronchopulmonary dysplasia (BPD) in mouse model. J Cell Biochem 2019; 120:9369-9380. [PMID: 30802330 DOI: 10.1002/jcb.28212] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 11/15/2018] [Indexed: 12/26/2022]
Abstract
New perinatal care technologies have improved the survival rate of preterm neonates, but the prevalence of bronchopulmonary dysplasia (BPD), one of the most intractable problems in neonatal intensive care unit (NICU), remains unchanged. In present study, high-throughput sequencing (HTS) was performed to detect the expression profiles of long noncoding RNAs (lncRNAs), messenger RNAs (mRNAs), circular RNAs (circRNAs), and microRNAs (miRNAs) in hyperoxia-induced BPD mouse model. Significant differentially expressed RNAs were selected and clustered between the BPD group and the control group. The results revealed that expressions of 1778 lncRNAs, 1240 mRNAs, 97 circRNAs, and 201 miRNAs were significantly altered in the BPD group. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were performed to predict the potential functions of differentially expressed RNAs. lncRNA-mRNA and circRNA-miRNA coexpression networks were constructed to detect their association with the pathogenesis of BPD. Our study provides a systematic perspective on the potential function of RNAs during BPD.
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Affiliation(s)
- Juan Wang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China.,Department of Pediatrics, The First People's Hospital of Lianyungang City, Lianyungang, Jiangsu, China
| | - Jing Yin
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Xingyun Wang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Heng Liu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Yin Hu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Xiangyun Yan
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Bin Zhuang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Zhangbin Yu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Shuping Han
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
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Insulin-Like Growth Factor-1 Signaling in Lung Development and Inflammatory Lung Diseases. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6057589. [PMID: 30018981 PMCID: PMC6029485 DOI: 10.1155/2018/6057589] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 03/06/2018] [Indexed: 12/19/2022]
Abstract
Insulin-like growth factor-1 (IGF-1) was firstly identified as a hormone that mediates the biological effects of growth hormone. Accumulating data have indicated the role of IGF-1 signaling pathway in lung development and diseases such as congenital disorders, cancers, inflammation, and fibrosis. IGF-1 signaling modulates the development and differentiation of many types of lung cells, including airway basal cells, club cells, alveolar epithelial cells, and fibroblasts. IGF-1 signaling deficiency results in alveolar hyperplasia in humans and disrupted lung architecture in animal models. The components of IGF-1 signaling pathways are potentiated as biomarkers as they are dysregulated locally or systemically in lung diseases, whereas data may be inconsistent or even paradoxical among different studies. The usage of IGF-1-based therapeutic agents urges for more researches in developmental disorders and inflammatory lung diseases, as the majority of current data are collected from limited number of animal experiments and are generally less exuberant than those in lung cancer. Elucidation of these questions by further bench-to-bedside researches may provide us with rational clinical diagnostic approaches and agents concerning IGF-1 signaling in lung diseases.
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Bao TP, Wu R, Cheng HP, Cui XW, Tian ZF. Differential expression of long non-coding RNAs in hyperoxia-induced bronchopulmonary dysplasia. Cell Biochem Funct 2016; 34:299-309. [PMID: 27137150 DOI: 10.1002/cbf.3190] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Tian-Ping Bao
- Department of Neonatology, Huai'an First People's Hospital; Nanjing Medical University; Huai'an Jiangsu China
| | - Rong Wu
- Neonatal Medical Centre; Huai'an Maternity and Child Healthcare Hospital; Huai'an Jiangsu China
| | - Huai-Ping Cheng
- Department of Neonatology, Huai'an First People's Hospital; Nanjing Medical University; Huai'an Jiangsu China
| | - Xian-Wei Cui
- Nanjing Maternity and Child Health Care Institute, Nanjing Maternity and Child Health Care Hospital; Nanjing Medical University; Nanjing Jiangsu, China
| | - Zhao-Fang Tian
- Department of Neonatology, Huai'an First People's Hospital; Nanjing Medical University; Huai'an Jiangsu China
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Hou A, Fu J, Yang H, Zhu Y, Pan Y, Xu S, Xue X. Hyperoxia stimulates the transdifferentiation of type II alveolar epithelial cells in newborn rats. Am J Physiol Lung Cell Mol Physiol 2015; 308:L861-72. [PMID: 25681436 DOI: 10.1152/ajplung.00099.2014] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 02/11/2015] [Indexed: 01/02/2023] Open
Abstract
Supplemental oxygen treatment in preterm infants may cause bronchopulmonary dysplasia (BPD), which is characterized by alveolar simplification and vascular disorganization. Despite type II alveolar epithelial cell (AEC II) damage being reported previously, we found no decrease in the AEC II-specific marker, surfactant protein C (SP-C), in the BPD model in our previous study. We thus speculated that AEC II injury is not a unique mechanism of BPD-related pulmonary epithelial repair dysfunction and that abnormal transdifferentiation can exist. Newborn rats were randomly assigned to model (85% oxygen inhalation) and control groups (room air inhalation). Expressions of AEC I (aquaporin 5, T1α) and AEC II markers (SP-C, SP-B) were detected at three levels: 1) in intact lung tissue, 2) in AEC II isolated from rats in the two groups, and 3) in AEC II isolated from newborn rats, which were further cultured under either hyperoxic or normoxic conditions. In the model group, increased AEC I was observed at both the tissue and cell level, and markedly increased transdifferentiation was observed by immunofluorescent double staining. Transmission electron microscopy revealed morphological changes in alveolar epithelium such as damaged AECs, a fused air-blood barrier structure, and opened tight junctions in the model group. These findings indicate that transdifferentiation of AECs is not suppressed but rather is increased under hyperoxic treatment by compensation; however, such repair during injury cannot offset pulmonary epithelial air exchange and barrier dysfunction caused by structural damage to AECs.
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Affiliation(s)
- Ana Hou
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Haiping Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuting Zhu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuqing Pan
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shuyan Xu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xindong Xue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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Pocino K, Minucci A, Manieri R, Conti G, De Luca D, Capoluongo ED. Description of an Automated Method for Urea Nitrogen Determination in Bronchoalveolar Lavage Fluid (BALF) of Neonates and Infants. ACTA ACUST UNITED AC 2015; 20:636-41. [PMID: 25586999 DOI: 10.1177/2211068214567147] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Indexed: 11/16/2022]
Abstract
Bronchoalveolar lavage (BAL) partially recovers both the instilled saline and the alveolar fluid, so-called epithelial lining fluid (ELF), but a correction for the dilution due to the BAL technique itself is needed to know the amount of recovered ELF. In this regard, urea nitrogen may be useful and has been proposed to calculate ELF. The aim of the present study was to develop and validate a new method to measure urea nitrogen in BAL fluid (BALF). We used 19 BALF samples obtained from neonates and infants with different respiratory conditions. The urea nitrogen assay was carried out on Cobas c311 analyzer (Roche Diagnostics). A validation study shows that the method is perfectly linear (R(2) = 0.999), sensitive (limit of detection = 0.055 mg/dL; limit of quantification = 0.16 mg/dL), repeatable (low = 0.15 ± 0.02, 13.3%; high = 1.80 ± 0.02, 1.1%), reproducible (low = 0.14 ± 0.02, 14.2 %; high = 1.76 ± 0.04, 2.2 %) with accuracy ranging between 93-96%. Our results support the robustness of validated procedure since the described method appears simple, precise, rapid, and suitable for routine analysis. Thus, it may be used to correct concentration of various noncellular BAL components and calculate their ELF amounts in neonates and infants.
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Affiliation(s)
- Krizia Pocino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of the Sacred Heart, Rome, Italy
| | - Angelo Minucci
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of the Sacred Heart, Rome, Italy
| | - Rocco Manieri
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of the Sacred Heart, Rome, Italy
| | - Giorgio Conti
- Pediatric Intensive Care Unit, Department of Critical Care University Hospital "A. Gemelli," Catholic University of the Sacred Heart, Rome, Italy
| | - Daniele De Luca
- Pediatric Intensive Care Unit, Department of Critical Care University Hospital "A. Gemelli," Catholic University of the Sacred Heart, Rome, Italy Division of Pediatrics and Neonatal Critical Care, South Paris University Hospitals Medical Center, "A. Beclere," APHP, Paris, France
| | - Ettore Domenico Capoluongo
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of the Sacred Heart, Rome, Italy
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Tanner SM, Berryhill TF, Ellenburg JL, Jilling T, Cleveland DS, Lorenz RG, Martin CA. Pathogenesis of necrotizing enterocolitis: modeling the innate immune response. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 185:4-16. [PMID: 25447054 DOI: 10.1016/j.ajpath.2014.08.028] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 08/21/2014] [Accepted: 08/27/2014] [Indexed: 12/23/2022]
Abstract
Necrotizing enterocolitis (NEC) is a major cause of morbidity and mortality in premature infants. The pathophysiology is likely secondary to innate immune responses to intestinal microbiota by the premature infant's intestinal tract, leading to inflammation and injury. This review provides an updated summary of the components of the innate immune system involved in NEC pathogenesis. In addition, we evaluate the animal models that have been used to study NEC with regard to the involvement of innate immune factors and histopathological changes as compared to those seen in infants with NEC. Finally, we discuss new approaches to studying NEC, including mathematical models of intestinal injury and the use of humanized mice.
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Affiliation(s)
- Scott M Tanner
- Department of Pediatric Surgery, University of Alabama at Birmingham, Birmingham, Alabama; Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Taylor F Berryhill
- Department of Pediatric Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - James L Ellenburg
- Department of Pediatric Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Tamas Jilling
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Dava S Cleveland
- Department of Pediatric Pathology, Children's Hospital of Alabama, Birmingham, Alabama
| | - Robin G Lorenz
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama.
| | - Colin A Martin
- Department of Pediatric Surgery, University of Alabama at Birmingham, Birmingham, Alabama.
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Pais RS, Moreno-Barriuso N, Hernández-Porras I, López IP, De Las Rivas J, Pichel JG. Transcriptome analysis in prenatal IGF1-deficient mice identifies molecular pathways and target genes involved in distal lung differentiation. PLoS One 2013; 8:e83028. [PMID: 24391734 PMCID: PMC3877002 DOI: 10.1371/journal.pone.0083028] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 10/30/2013] [Indexed: 01/31/2023] Open
Abstract
Background Insulin-like Growth Factor 1 (IGF1) is a multifunctional regulator of somatic growth and development throughout evolution. IGF1 signaling through IGF type 1 receptor (IGF1R) controls cell proliferation, survival and differentiation in multiple cell types. IGF1 deficiency in mice disrupts lung morphogenesis, causing altered prenatal pulmonary alveologenesis. Nevertheless, little is known about the cellular and molecular basis of IGF1 activity during lung development. Methods/Principal Findings Prenatal Igf1−/− mutant mice with a C57Bl/6J genetic background displayed severe disproportional lung hypoplasia, leading to lethal neonatal respiratory distress. Immuno-histological analysis of their lungs showed a thickened mesenchyme, alterations in extracellular matrix deposition, thinner smooth muscles and dilated blood vessels, which indicated immature and delayed distal pulmonary organogenesis. Transcriptomic analysis of Igf1−/− E18.5 lungs using RNA microarrays identified deregulated genes related to vascularization, morphogenesis and cellular growth, and to MAP-kinase, Wnt and cell-adhesion pathways. Up-regulation of immunity-related genes was verified by an increase in inflammatory markers. Increased expression of Nfib and reduced expression of Klf2, Egr1 and Ctgf regulatory proteins as well as activation of ERK2 MAP-kinase were corroborated by Western blot. Among IGF-system genes only IGFBP2 revealed a reduction in mRNA expression in mutant lungs. Immuno-staining patterns for IGF1R and IGF2, similar in both genotypes, correlated to alterations found in specific cell compartments of Igf1−/− lungs. IGF1 addition to Igf1−/− embryonic lungs cultured ex vivo increased airway septa remodeling and distal epithelium maturation, processes accompanied by up-regulation of Nfib and Klf2 transcription factors and Cyr61 matricellular protein. Conclusions/Significance We demonstrated the functional tissue specific implication of IGF1 on fetal lung development in mice. Results revealed novel target genes and gene networks mediators of IGF1 action on pulmonary cellular proliferation, differentiation, adhesion and immunity, and on vascular and distal epithelium maturation during prenatal lung development.
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Affiliation(s)
- Rosete Sofía Pais
- Centro de Investigación Biomédica de la Rioja, Fundación Rioja Salud, Logroño, Spain
| | - Nuria Moreno-Barriuso
- Instituto de Biología Molecular y Celular del Cáncer - Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas – University of Salamanca, Salamanca, Spain
| | - Isabel Hernández-Porras
- Instituto de Biología Molecular y Celular del Cáncer - Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas – University of Salamanca, Salamanca, Spain
| | - Icíar Paula López
- Centro de Investigación Biomédica de la Rioja, Fundación Rioja Salud, Logroño, Spain
| | - Javier De Las Rivas
- Instituto de Biología Molecular y Celular del Cáncer - Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas – University of Salamanca, Salamanca, Spain
| | - José García Pichel
- Centro de Investigación Biomédica de la Rioja, Fundación Rioja Salud, Logroño, Spain
- * E-mail:
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Alphonse RS, Rajabali S, Thébaud B. Lung injury in preterm neonates: the role and therapeutic potential of stem cells. Antioxid Redox Signal 2012; 17:1013-40. [PMID: 22400813 DOI: 10.1089/ars.2011.4267] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Continuous improvements in perinatal care have allowed the survival of ever more premature infants, making the task of protecting the extremely immature lung from injury increasingly challenging. Premature infants at risk of developing chronic lung disease or bronchopulmonary dysplasia (BPD) are now born at the late canalicular stage of lung development, just when the airways become juxtaposed to the lung vasculature and when gas-exchange becomes possible. Readily available strategies, including improved antenatal management (education, regionalization, steroids, and antibiotics), together with exogenous surfactant and exclusive/early noninvasive ventilatory support, will likely decrease the incidence/severity of BPD over the next few years. Nonetheless, because of the extreme immaturity of the developing lung, the extent to which disruption of lung growth after prematurity and neonatal management lead to an earlier or more aggravated decline in respiratory function in later life is a matter of concern. Consequently, much more needs to be learned about the mechanisms of lung development, injury, and repair. Recent insight into stem cell biology has sparked interest for stem cells to repair damaged organs. This review summarizes the exciting potential of stem cell-based therapies for lung diseases in general and BPD in particular.
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15
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Dong J, Carey WA, Abel S, Collura C, Jiang G, Tomaszek S, Sutor S, Roden AC, Asmann YW, Prakash YS, Wigle DA. MicroRNA-mRNA interactions in a murine model of hyperoxia-induced bronchopulmonary dysplasia. BMC Genomics 2012; 13:204. [PMID: 22646479 PMCID: PMC3410783 DOI: 10.1186/1471-2164-13-204] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 05/30/2012] [Indexed: 12/21/2022] Open
Abstract
Background Bronchopulmonary dysplasia is a chronic lung disease of premature neonates characterized by arrested pulmonary alveolar development. There is increasing evidence that microRNAs (miRNAs) regulate translation of messenger RNAs (mRNAs) during lung organogenesis. The potential role of miRNAs in the pathogenesis of BPD is unclear. Results Following exposure of neonatal mice to 80% O2 or room air (RA) for either 14 or 29 days, lungs of hyperoxic mice displayed histological changes consistent with BPD. Comprehensive miRNA and mRNA profiling was performed using lung tissue from both O2 and RA treated mice, identifying a number of dynamically regulated miRNAs and associated mRNA target genes. Gene ontology enrichment and pathway analysis revealed that hyperoxia modulated genes involved in a variety of lung developmental processes, including cell cycle, cell adhesion, mobility and taxis, inflammation, and angiogenesis. MiR-29 was prominently increased in the lungs of hyperoxic mice, and several predicted mRNA targets of miR-29 were validated with real-time PCR, western blotting and immunohistochemistry. Direct miR-29 targets were further validated in vitro using bronchoalveolar stem cells. Conclusion In newborn mice, prolonged hyperoxia induces an arrest of alveolar development similar to that seen in human neonates with BPD. This abnormal lung development is accompanied by significant increases in the levels of multiple miRNAs and corresponding decreases in the levels of predicted mRNA targets, many of which have known or suspected roles in pathways altered in BPD. These data support the hypothesis that dynamic regulation of miRNAs plays a prominent role in the pathophysiology of BPD.
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Affiliation(s)
- Jie Dong
- Division of General Thoracic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
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16
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Ahasic AM, Zhai R, Su L, Zhao Y, Aronis KN, Thompson BT, Mantzoros CS, Christiani DC. IGF1 and IGFBP3 in acute respiratory distress syndrome. Eur J Endocrinol 2012; 166:121-9. [PMID: 22004906 PMCID: PMC3757506 DOI: 10.1530/eje-11-0778] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE IGF1 and its most abundant binding protein, IGF-binding protein 3 (IGFBP3), have been implicated in fibrotic lung diseases and persistent acute respiratory distress syndrome (ARDS) due to profibrogenic and antiapoptotic activity. Whether circulating levels of IGF1 and IGFBP3 are altered in ARDS and whether they predict progression of and survival from ARDS remains unknown. This study aims to characterize the circulating levels of IGF1 and IGFBP3 in patients at risk for ARDS in relation to i) development of ARDS and ii) mortality among ARDS cases. DESIGN In this case-cohort study, consecutive patients with risk factors for ARDS admitted to the intensive care unit were enrolled and followed prospectively for the development of ARDS. Cases were followed for all-cause mortality through day 60. Of the 2397 patients enrolled in the parent study, plasma samples were available in 531 (22%) patients (356 controls and 175 cases) from early in presentation. Total plasma IGF1 and IGFBP3 levels were measured. RESULTS After adjusting for relevant clinical covariates including severity of illness, IGF1 and IGFBP3 levels were significantly lower in ARDS cases than in controls (odds ratio (OR), 0.58; P=0.006; OR, 0.57; P=0.0015 respectively). Among the ARDS cases, IGF1 and IGFBP3 levels were significantly lower in the 78 (45%) non-survivors (hazard ratio (HR), 0.70; P=0.024; HR, 0.69; P=0.021 respectively). CONCLUSIONS Lower circulating levels of IGF1 and IGFBP3 were independently associated with ARDS case status. Furthermore, lower levels were associated with mortality among the ARDS cases. These data support the role of the IGF pathway in ARDS.
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Affiliation(s)
- Amy M Ahasic
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, Yale University School of Medicine, 300 Cedar Street, PO Box 208057, New Haven, Connecticut 06520-8057, USA.
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17
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Blok CA, Krediet TG, Kavelaars A, Koopman-Esseboom C, Vreman HJ, Van Bel F. Early end-tidal carbon monoxide levels and neurodevelopmental outcome at 3 years 6 months of age in preterm infants. Dev Med Child Neurol 2011; 53:1113-8. [PMID: 21933176 PMCID: PMC3220782 DOI: 10.1111/j.1469-8749.2011.04110.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Increased end-tidal carbon monoxide (ETCOc) and cytokines in preterm infants are related to bronchopulmonary dysplasia and intraventricular haemorrhages. The aim was to study the predictive value of ETCOc and cytokine levels for long-term outcome. METHODS This study comprised 105 very preterm infants (57 males, 48 females; gestational age range 25 wks 5d-31 wks 4d; birthweight 610-2100 g) who were admitted to a neonatal intensive care unit between 1 February and 31 December 2002. ETCOc, plasma tumour necrosis factor alpha (TNF-α) and interleukins (IL) 6 and 8, and malondialdehyde (MDA, a marker of lipid peroxidation), were measured at days 1, 3, and 5 of life and related to outcome at 3 years 6 months of age (Griffiths Mental Developmental Scales). RESULTS Of the 105 infants, 69 were eligible for follow-up (37 males; 32 females; bronchopulmonary dysplasia, n = 12). ETCOc at 0 to 24 hours was higher in infants with adverse outcome (Griffiths developmental quotient <85, n = 15) compared with favourable outcome (2.7SD 0.7 vs 2.0SD 0.5; p < 0.05). MDA and cytokines did not differ between groups. Regression analysis with bootstrapping of independent variables (gestational age, birthweight, ETCOc, TNF-α, IL-6, IL-8, and bronchopulmonary dysplasia) showed that ETCOc was the only parameter that correlated with outcome. The sensitivity and negative predictive value of ETCOc for adverse outcome were 93% and 85% respectively. INTERPRETATION Adverse neurodevelopmental outcome is associated with increased endogenous carbon monoxide. ETCOc less than 2.0 ppm during the first day indicates a favourable outcome.
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Affiliation(s)
- Cornelie A Blok
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
| | - Tannette G Krediet
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
| | - Annemiek Kavelaars
- Laboratory of NeuroImmunology and Developmental Origins of Disease (NIDOD), University Medical Center Utrecht, the Netherlands
| | | | - Hendrik J Vreman
- Neonatal and Developmental Medicine Laboratory, Stanford University School of Medicine, Stanford, CA, USA
| | - Frank Van Bel
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
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18
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Woo SJ, Park KH, Ahn J, Oh KJ, Lee SY, Jeong EH, Park KH. A co-twin study of the relative effect of birth weight and gestational age on retinopathy of prematurity. Eye (Lond) 2011; 25:1478-83. [PMID: 21869833 DOI: 10.1038/eye.2011.208] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To determine the relative effect of birth weight and gestational age on retinopathy of prematurity (ROP) using preterm twin pairs discordant for birth weight. METHODS This study was a retrospective cohort study including 55 consecutive twin pairs of 110 preterm infants (gestational age ≤33 weeks). The outcomes of ROP including occurrence (any stage), severe ROP (stage 3 or more), and clinically significant ROP requiring laser treatment were compared between twins with the lower birth weight from each pair and their co-twins with the higher birth weight. Using twin pairs having different birth weight and identical gestational age, the independent effects of prematurity and intrauterine growth on ROP could be evaluated. Other perinatal morbidities related to prematurity were also compared between twin pairs. RESULTS No significant differences in ROP between larger and smaller infants were observed in the twin-paired analysis while analysis on individual infants showed strong association between small birth weight and ROP outcomes. However, in both the larger and smaller infant groups, gestational age of <28 weeks was significantly associated with ROP outcomes. No differences were found between twin pairs regarding other perinatal morbidities including bronchopulmonary dysplasia, respiratory distress syndrome, patent ductus arteriosus, intraventricular hemorrhage, and periventricular leukomalacia. CONCLUSIONS Birth weight is not associated with ROP, while gestational age is in the twin-paired study, suggesting that gestational age is a better predictor of ROP than birth weight. This indicates that maturity is more important in the pathogenesis of ROP than intrauterine growth.
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Affiliation(s)
- S J Woo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
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Rigante D, Capoluongo E. The plodding diagnosis of monogenic autoinflammatory diseases in childhood: from the clinical scenery to laboratory investigation. Clin Chem Lab Med 2011; 49:783-91. [PMID: 21275813 DOI: 10.1515/cclm.2011.127] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Autoinflammatory diseases (AID) are inherited errors of innate immunity which, although individually uncommon, collectively set up an emerging chapter of medicine. Careful analysis and identification of AID is essential to prompt effective treatment and improve survival and quality of life in these patients. Research into pediatric AID is lagging behind studies in adults, though a better understanding of AID in infancy could lead to improved diagnostic protocols and reduce long-term disability. This review provides a detailed summary of monogenic AID in childhood to help pediatricians correctly recognize these conditions and also highlight recent developments in the laboratory diagnostic work-up.
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Affiliation(s)
- Donato Rigante
- Department of Pediatric Sciences, Università Cattolica Sacro Cuore, Rome, Italy.
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Kwinta P, Klimek M, Wójcik M, Grudzień A, Drozdz D, Pietrzyk JJ. Insulin-like growth factor-1 (IGF-1) serum concentration among 7-year-old extremely low birth weight children--an indicator of growth problems. J Pediatr Endocrinol Metab 2011; 24:651-7. [PMID: 22145451 DOI: 10.1515/jpem.2011.264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The study aim was to compare somatic development, body composition, insulin growth factor-1 (IGF-1) serum concentration and serum lipid profile between small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA) 7-year-old extremely low birth weight (ELBW) children and full-term (FT) controls. MATERIALS AND METHODS Fifty-seven AGA ELBW children [mean birth weight (BW) 850 g and mean gestational age (GA) 26.4 weeks] and 24 SGA ELBW children (mean BW 833 g, mean GA 29.5 weeks) were evaluated. The control group included 37 age- and sex-matched FT children from one outpatient center. RESULTS Nine AGA and four SGA were found to have short stature defined as height < 3rd percentile for chronological age (p = 0.9). In the AGA cohort, the results of weight, head circumference, triceps skin fold and body mass index (BMI) measurements were significantly reduced in the short-stature subgroup. IGF-1 serum concentrations differed significantly between short-stature and normal-stature subgroups (121 vs. 193 ng/mL; p = 0.02). In the SGA cohort, weight and serum concentrations of total cholesterol (5.03 vs. 4.26 mmol/L; p = 0.04), LDL cholesterol (3.24 vs. 2.38 mmol/L; p = 0.01) and IGF-1 (113 vs. 211 ng/mL; p = 0.01) differed significantly between the short-stature and normal-stature subgroups. CONCLUSIONS Short stature at the age of 7 years was diagnosed in a similar percentage of AGA and SGA former ELBW infants. In both cohorts short-stature children have significantly lower weight and serum IGF-1 levels. IGF-1 seems to be involved in prolonged growth restriction among ELBW infants, regardless of whether they were AGA or SGA.
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Affiliation(s)
- Przemko Kwinta
- Department of Pediatrics, Jagiellonian University Medical College, Cracow, Poland.
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21
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Capoluongo E. Insulin-like growth factor system and sporadic malignant melanoma. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 178:26-31. [PMID: 21224039 DOI: 10.1016/j.ajpath.2010.11.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Revised: 07/15/2010] [Accepted: 08/10/2010] [Indexed: 11/18/2022]
Abstract
Insulin and insulin-like growth factors (IGFs) are important regulators of energy metabolism and growth. Several findings have outlined an important role played by this family of molecules in both tumor maintenance and development. Despite the established contribution of the IGF system in carcinogenesis, little and contrasting data have been reported concerning the intertwined relationships between melanoma and this family of molecules. The present minireview aims to summarize the main topics and evidence concerning this malignant skin cancer, with a focus on the following: i) melanoma and cell proliferation effects induced by the IGF system, ii) in vitro and in vivo experimental data, and iii) targeting studies. Because of consistent findings regarding the role of the IGF-1 receptor in the modulation of IGF-1 activity, possible therapeutic strategies combining the use of antisense oligonucleotides against IGF-1 receptor mRNA could be applied in the future.
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Affiliation(s)
- Ettore Capoluongo
- Laboratory of Clinical Molecular Diagnostic, Institute of Biochemistry and Clinical Biochemistry, Catholic University, Rome, Italy.
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Leviton A, Dammann O, Engelke S, Allred E, Kuban KCK, O'Shea TM, Paneth N. The clustering of disorders in infants born before the 28th week of gestation. Acta Paediatr 2010; 99:1795-800. [PMID: 20712837 DOI: 10.1111/j.1651-2227.2010.01973.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIM To see whether disorders prevalent in infants born extremely preterm cluster. DESIGN Observational cohort study. SETTING University-affiliated newborn intensive care nurseries. SUBJECTS One thousand two hundred and twenty-three infants born before the 28th week of gestation who survived until 36 weeks postmenstrual age when the diagnosis of bronchopulmonary dysplasia (BPD) could be made. INTERVENTIONS None. MAIN OUTCOME MEASURES Cerebral white matter damage (an echolucent lesion, or moderate or severe ventriculomegaly on a protocol cranial ultrasound scan), BPD, retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC) and early and late bacteremia. RESULTS After adjustment for gestational age, children who had severe NEC (Bell stage IIIb) were at increased risk of cerebral white matter damage, severe ROP (stage 3+), and severe BPD (defined as both oxygen and ventilator dependent). Children who had early bacteremia were at increased risk of late bacteremia and severe ROP. Those who had severe ROP were at increased risk of severe BPD and both early and late bacteremia. CONCLUSIONS Necrotizing enterocolitis is the disorder common to most of the clusters, but we do not know if its onset occurred before the others. Organ-damage-promoting substances, however, have been found in the circulation of newborn animals with bowel inflammation, supporting the view that NEC contributes to the damage of other organs.
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Affiliation(s)
- Alan Leviton
- Neurology Department, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA.
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