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Postolache L, Parsa A, Simoni P, Boitsios G, Ismaili K, Schurmans T, Monier A, Casimir G, Albert A, Parsa CF. Widespread kidney anomalies in children with Down syndrome. Pediatr Nephrol 2022; 37:2361-2368. [PMID: 35118542 DOI: 10.1007/s00467-022-05455-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Rare autopsy studies have described smaller kidneys as well as urinary tract anomalies in Down syndrome. This observation has never been investigated in vivo and little is known about the possible consequences upon kidney function. Here we wish to confirm whether children with Down syndrome have smaller kidneys and to evaluate their kidney function in vivo. METHODS This retrospective cohort study enrolled 49 children with Down syndrome, as well as 49 age- and sex-matched controls at the Queen Fabiola Children's University Hospital in Brussels, Belgium. Doppler and kidney ultrasonography, spot urine albumin to creatinine ratio, estimated glomerular filtration rate (eGFR), and anthropometric data were recorded. RESULTS Kidney size in children with Down syndrome was smaller than age- and sex-matched controls in terms of length (p < 0.001) and volume (p < 0.001). Kidney function based on eGFR was also decreased in Down syndrome compared to historical normal. Twenty-one of the children with Down syndrome (42%) had eGFR < 90 mL/min/1.73 m2, with 5 of these (10%) having an eGFR < 75 mL/min/1.73 m2. In addition, 7 of the children with Down syndrome (14%) had anomalies of the kidney and/or urinary tract that had previously been undiagnosed. CONCLUSIONS Children with Down syndrome have significantly smaller kidneys than age-matched controls as well as evidence of decreased kidney function. These findings, in addition to well-noted increased kidney and urologic anomalies, highlight the need for universal anatomical and functional assessment of all individuals with Down syndrome. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Lavinia Postolache
- Department of Ophthalmology, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Afshin Parsa
- The Division of Kidney, Urologic, and Hematologic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Paolo Simoni
- Department of Radiology, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Grammatina Boitsios
- Department of Radiology, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Khalid Ismaili
- Department of Pediatrics, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Thierry Schurmans
- Department of Pediatrics, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Anne Monier
- Department of Pediatrics, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Georges Casimir
- Department of Pediatrics, Queen Fabiola Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Adelin Albert
- Department of Biostatistics, Liège University Hospital, Liège, Belgium
| | - Cameron F Parsa
- Department of Ophthalmology, Erasmus Hospital, Université Libre de Bruxelles, 808 Route de Lennik, B-1070, Brussels, Belgium. .,Faculty of Medicine, Sorbonne University, Paris, France.
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Shi J, Chen G, Wang H, Wang X, Han B, Li K, Wang Q, Zhang L, Wang Z, Cheng Y, He J, Shi Y, Chen W, Luo Y, Wu L, Wang X, Nan K, Jin F, Dong J, Li B, Liu Z. Occurrence of hypertension during third-line anlotinib is associated with progression-free survival in patients with squamous cell lung cancer (SCC): A post hoc analysis of the ALTER0303 trial. Thorac Cancer 2021; 12:2345-2351. [PMID: 34273139 PMCID: PMC8410552 DOI: 10.1111/1759-7714.14076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/03/2021] [Accepted: 06/24/2021] [Indexed: 12/24/2022] Open
Abstract
Background There is a lack of targeted therapeutic options for squamous cell lung cancer (SCC). Accelerated hypertension is an issue with many targeted therapies for lung cancer. This study aimed to analyze the efficacy of anlotinib, based on progression‐free survival (PFS) and overall survival (OS) in patients with SCC, stratified by hypertension and Eastern Cooperative Oncology Group (ECOG) score. Methods This was a post hoc analysis of a multicenter, double‐blind, phase III ALTER0303 randomized controlled trial. Only patients with SCC were included. The occurrence of hypertension during the study period was defined according to CTCAE 4.03. OS and PFS were the primary and secondary endpoints, respectively. The patients were stratified according to hypertension and ECOG score, respectively. Results The median PFS in the patients who developed hypertension was longer than in those who did not (7.2 (95% CI: 3.5–11.0) versus 3.2 (95% CI: 1.2–5.3) months, p = 0.001; HR (95% CI), 0.4 (0.2–0.8)). In the ECOG 0 patients, the median PFS in the patients who developed hypertension versus those who did not was 5.6 vs. 1.8 months, respectively (Figure 2(d)). In the ECOG 1 patients, the median PFS in the patients who developed hypertension versus those who did not was 7.0 (95% CI: 3.0–11.0) vs. 4.8 (95% CI: 1.2–8.5) months (p = 0.043). No statistically significant differences were found in OS in the stratified analyses. Conclusions The occurrence of hypertension might be a clinical indicator predicting the efficacy of third‐line anlotinib treatment in patients with SCC.
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Affiliation(s)
- Jianhua Shi
- Department of Oncology, Linyi Cancer Hospital, Linyi, China
| | - Guimin Chen
- Department of Oncology, Linyi Cancer Hospital, Linyi, China
| | - Haitao Wang
- Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Xiuxiu Wang
- Department of Oncology, Linyi Cancer Hospital, Linyi, China
| | - Baohui Han
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Kai Li
- Department of Thoracic Oncology, Tianjin Medical University Cancer Hospital, Tianjin, China
| | - Qiming Wang
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China.,Department of Internal Medicine, Henan Cancer Hospital, Zhengzhou, China
| | - Li Zhang
- Department of Respiratory Diseases, Peking Union Medical College Hospital, Beijing, China
| | - Zhehai Wang
- Department of Internal Medicine-Oncology, Shandong Cancer Hospital, Jinan, China
| | - Ying Cheng
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, China
| | - Jianxing He
- Department of Thoracic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuankai Shi
- Department of Medical Oncology, Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China
| | - Weiqiang Chen
- Department of Pulmonary Medicine, Lanzhou Military General Hospital, Lanzhou, China
| | - Yi Luo
- Department of Medical Oncology, Hunan Cancer Hospital, Changsha, China
| | - Lin Wu
- Department of Medical Oncology, Hunan Cancer Hospital, Changsha, China
| | - Xiuwen Wang
- Department of Chemotherapy, Qilu Hospital of Shandong University, Jinan, China
| | - Kejun Nan
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Faguang Jin
- Department of Respiratory Diseases, Tang Du Hospital, Xi'an, China
| | - Jian Dong
- First Department of Medical Oncology, Yunnan Cancer Hospital, Kunming, China
| | - Baolan Li
- Department of General Medicine, Capital Medical University, Beijing Chest Hospital, Beijing, China
| | - Zhian Liu
- Department of Oncology, Linyi Cancer Hospital, Linyi, China
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Abstract
PURPOSE OF REVIEW Pulmonary arterial hypertension (PAH) causes high morbidity and mortality in children. In this review, we discuss advances in diagnosis and treatment of this disorder. RECENT FINDINGS Proceedings published from the 2018 World Symposium updated the definition of pulmonary hypertension to include all adults and children with mean pulmonary artery pressure more than 20 mmHg. Targeted PAH therapy is increasingly used off-label, but in 2017, bosentan became the first Food and Drug Administration-targeted PAH therapy approved for use in children. SUMMARY In recent years, advanced imaging and clinical monitoring have allowed improved risk stratification of pulmonary hypertension patients. New therapies, approved in adults and used off-label in pediatric patients, have led to improved outcomes for affected children.
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Bush D, Galambos C, Dunbar Ivy D. Pulmonary hypertension in children with Down syndrome. Pediatr Pulmonol 2021; 56:621-629. [PMID: 32049444 DOI: 10.1002/ppul.24687] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 01/23/2020] [Indexed: 12/26/2022]
Abstract
Individuals with Down syndrome (DS) have an increased risk of developing pulmonary hypertension (PH). In this review, we explore the epidemiology and clinical characteristics of PH in the population with DS and examine genetic, molecular and clinical contributions to the condition. The presence of an additional copy of chromosome 21 (trisomy 21) increases the risk of developing PH in children with DS through many mechanisms, including increased hemodynamic stress in those with congenital heart disease, hypoxemia through impaired ventilation to perfusion matching secondary to developmental lung abnormalities, pulmonary hypoplasia from pulmonary vascular endothelial dysfunction, and an increase in pulmonary vascular resistance often related to pulmonary comorbidities. We review recent studies looking at novel biomarkers that may help diagnose, predict or monitor PH in the population with DS and examine current cardiopulmonary guidelines for monitoring children with DS. Finally, we review therapeutic interventions specific to PH in individuals with DS. Contemporary work has identified exciting mechanistic pathways including the upregulation of antiangiogenic factors and interferon activity, which may lead to additional biomarkers or therapeutic opportunities. Throughout the manuscript, we identify gaps in our knowledge of the condition as it relates to the population with DS and offer suggestions for future clinical, translational, and basic science research.
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Affiliation(s)
- Douglas Bush
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Csaba Galambos
- Department of Pathology and Laboratory Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - David Dunbar Ivy
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado
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Laham AJ, Saber-Ayad M, El-Awady R. DYRK1A: a down syndrome-related dual protein kinase with a versatile role in tumorigenesis. Cell Mol Life Sci 2021; 78:603-619. [PMID: 32870330 PMCID: PMC11071757 DOI: 10.1007/s00018-020-03626-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/22/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022]
Abstract
Dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) is a dual kinase that can phosphorylate its own activation loop on tyrosine residue and phosphorylate its substrates on threonine and serine residues. It is the most studied member of DYRK kinases, because its gene maps to human chromosome 21 within the Down syndrome critical region (DSCR). DYRK1A overexpression was found to be responsible for the phenotypic features observed in Down syndrome such as mental retardation, early onset neurodegenerative, and developmental heart defects. Besides its dual activity in phosphorylation, DYRK1A carries the characteristic of duality in tumorigenesis. Many studies indicate its possible role as a tumor suppressor gene; however, others prove its pro-oncogenic activity. In this review, we will focus on its multifaceted role in tumorigenesis by explaining its participation in some cancer hallmarks pathways such as proliferative signaling, transcription, stress, DNA damage repair, apoptosis, and angiogenesis, and finally, we will discuss targeting DYRK1A as a potential strategy for management of cancer and neurodegenerative disorders.
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Affiliation(s)
- Amina Jamal Laham
- College of Medicine, University of Sharjah, Sharjah, UAE
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Maha Saber-Ayad
- College of Medicine, University of Sharjah, Sharjah, UAE.
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE.
| | - Raafat El-Awady
- College of Medicine, University of Sharjah, Sharjah, UAE.
- College of Pharmacy, University of Sharjah, Sharjah, UAE.
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6
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Abstract
Most of angiogenesis assays were designed and developed during Folkman's era. But the growth of new blood vessels in several pathologic conditions as tumor development or inflammation were observed long time ago.The development of new blood vessels was early observed by ancient Egyptians who tried to destroy them by applying empirical methods. From the first observations regarding angiogenesis to a personalized therapy targeting newly formed blood vessels a lot of experimental in vitro and in vivo angiogenesis assays have been developed. The present work will overview the oldest and less known part of angiogenesis assays development, and in addition, it will present the newest data in the experimental field of angiogenesis which is rapidly improved by the needs of new antiangiogenic and antivascular therapy development.
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7
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Abstract
Background: Tessellated fundus refers to a specific change in the appearance of the internal layers of the eye in which the choroidal large vessels became visible through polygonal hypopigmented areas. Such hypopigmented areas alternate with hyperpigmented zones in a tigroid pattern. Fundus tessellation is often associated with myopia and choroidal thinning.Materials and Methods: We analyzed fundus images from 50 children with Down syndrome and 52 controls.Results: Tessellation was present in 64% of children with Down syndrome, compared with only 13.5% of controls (p < .0001). In most cases, tessellation was located peripapillary, and no difference was observed in tessellation localization between children with Down syndrome and controls (p = .60). Although more prevalent in myopic children with and without Down syndrome, tessellation was present in almost half (48%) of children with Down syndrome with hyperopia versus only 5% of controls with the same refractive status.Conclusions: Mechanical stretching of the choroid could explain the high rate of tessellation in myopes. Other factors must contribute to the higher prevalence of tessellated fundus in children with Down syndrome without myopia. We discuss potentially relevant factors and propose vascular involvement as a contributor to tessellation in our population with Down syndrome. Further studies assessing choroidal vasculature in individuals with Down syndrome are needed to confirm this theory.
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Affiliation(s)
- Lavinia Postolache
- Ophthalmology Department, Queen Fabiola University Children's Hospital, Université Libre De Bruxelles, Brussels, Belgium
| | - Casper De Jong
- Ophthalmology Department, Queen Fabiola University Children's Hospital, Université Libre De Bruxelles, Brussels, Belgium
| | - Georges Casimir
- Pediatric Department, Queen Fabiola University Children's Hospital, Université Libre De Bruxelles, Brussels, Belgium
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Bush D, Wolter-Warmerdam K, Wagner BD, Galambos C, Ivy D, Abman SH, McMorrow D, Hickey F. EXPRESS: Angiogenic Profile Identifies Pulmonary Hypertension in Children with Down Syndrome. Pulm Circ 2019; 9:2045894019866549. [PMID: 31293212 PMCID: PMC6696852 DOI: 10.1177/2045894019866549] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 07/08/2019] [Indexed: 11/16/2022] Open
Abstract
Past studies have shown that lung angiogenic signaling may be abnormal in children with Down syndrome, but whether differences in circulating angiogenic proteins can identify pulmonary hypertension in children with Down syndrome is unknown. A prospective study of 78 children from birth to 21 years of age was conducted to evaluate clinical data, echocardiograms, and cardiac catheterizations. Four patient populations were enrolled, including children with Down syndrome who have pulmonary hypertension (Down syndrome + pulmonary hypertension, n = 12); control children without Down syndrome who have pulmonary hypertension (C + pulmonary hypertension, n = 15); children with Down syndrome without a known diagnosis of pulmonary hypertension (Down syndrome − pulmonary hypertension, n = 26); and children without Down syndrome or a known diagnosis of pulmonary hypertension (C − pulmonary hypertension, n = 25). Blood samples were collected at enrollment and concentrations for 11 proteins were evaluated. A classification tree was created to identify angiogenic peptide signals that may be associated with pulmonary hypertension in children with Down syndrome compared with controls. Findings identified elevated endostatin levels (>4.98 log10 pg/ml) were associated with Down syndrome. Platelet-derived growth factor AA levels (>2.51 log10 pg/ml) were higher in non-Down syndrome patients with pulmonary hypertension (C + pulmonary hypertension), whereas lower angiogenin (<5.428 log10 pg/ml) or lower angiogenin with elevated angiopoietin-1 levels (>3.59 log10 pg/ml) distinguished pulmonary hypertension in those with Down syndrome from the other groups. This study suggests that children with Down syndrome have high endostatin levels, but low levels of angiogenin levels in children with Down syndrome more often identified pulmonary hypertension than Down syndrome subjects without pulmonary hypertension or non-Down syndrome children. We speculate that these changes in circulating peptides support the concept of dysregulated angiogenesis in children with Down syndrome and pulmonary hypertension, which may further support potential utility as biomarkers for identifying subjects with Down syndrome at risk for pulmonary hypertension in this population.
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Affiliation(s)
- Douglas Bush
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, USA
| | | | - Brandie D. Wagner
- Department of Biostatistics and Informatics, University of Colorado and Children’s Hospital Colorado, Aurora, USA
| | - Csaba Galambos
- Department of Pathology, University of Colorado School of Medicine, Aurora, USA
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
| | - D.Dunbar Ivy
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
| | - Steven H. Abman
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
| | - Deven McMorrow
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
| | - Francis Hickey
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
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Gerbaud P, Murthi P, Guibourdenche J, Guimiot F, Sarazin B, Evain-Brion D, Badet J, Pidoux G. Study of Human T21 Placenta Suggests a Potential Role of Mesenchymal Spondin-2 in Placental Vascular Development. Endocrinology 2019; 160:684-698. [PMID: 30715257 DOI: 10.1210/en.2018-00826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/25/2019] [Indexed: 12/12/2022]
Abstract
Placental development is particularly altered in trisomy of chromosome 21 (T21)-affected pregnancies. We previously described in T21-affected placentae an abnormal paracrine crosstalk between the villus mesenchymal core and villus trophoblasts. T21-affected placentae are known to be characterized by their hypovascularity. However, the causes of this anomaly remain not fully elucidated. Therefore, the hypothesis of an abnormal paracrine crosstalk between fetal mesenchymal core and placental endothelial cells (PLECs) was evocated. Villus mesenchymal cells from control (CMCs) and T21 placentae (T21MCs) were isolated and grown in culture to allow their characterization and collection of conditioned media for functional analyses (CMC-CM and T21MC-CM, respectively). Interestingly, PLEC proliferation and branching ability were less stimulated by T21MC-CM than by CMC-CM. Protein array analysis identified secreted proangiogenic growth factors in CMC-CM, which were reduced in T21MC-CM. Combined mass spectrometry and biochemical analysis identified spondin-2 as a factor decreased in T21MC-CM compared with CMC-CM. We found that exogenous spondin-2 stimulated PLEC proliferation and established that T21MC-CM supplemented with spondin-2 recovered conditioned media ability to induce PLEC proliferation and angiogenesis. Hence, this study demonstrates a crosstalk between villus mesenchymal and fetal endothelial cells, in which spondin-2 secreted from mesenchymal cells plays a central role in placental vascular functions. Furthermore, our results also suggest that a reduction in spondin-2 secretion may contribute to the pathogenesis of T21 placental hypovascularity.
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Affiliation(s)
- Pascale Gerbaud
- INSERM, UMR-S 1139, Paris, France
- INSERM, UMR-S 1180, Châtenay-Malabry, France
| | - Padma Murthi
- Department of Maternal-Fetal Medicine, Pregnancy Research Centre, Royal Women's Hospital, University of Melbourne, Parkville, Victoria, Australia
- Department of Obstetrics and Gynaecology, Royal Women's Hospital, University of Melbourne, Parkville, Victoria, Australia
- Department of Physiology, Monash University, Clayton, Victoria, Australia
- Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Jean Guibourdenche
- INSERM, UMR-S 1139, Paris, France
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
- Service d'Hormonologie, Assistance Publique-Hôpitaux de Paris, CHU Cochin, Paris, France
- Fondation PremUP, Paris, France
| | - Fabien Guimiot
- Unité de Foetopathologie, Assistance Publique-Hôpitaux de Paris, CHU Robert Debré, Paris, France
| | | | - Danièle Evain-Brion
- INSERM, UMR-S 1139, Paris, France
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
- Fondation PremUP, Paris, France
| | - Josette Badet
- INSERM, UMR-S 1139, Paris, France
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Guillaume Pidoux
- INSERM, UMR-S 1139, Paris, France
- INSERM, UMR-S 1180, Châtenay-Malabry, France
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Hida K, Maishi N, Annan DA, Hida Y. Contribution of Tumor Endothelial Cells in Cancer Progression. Int J Mol Sci 2018; 19:ijms19051272. [PMID: 29695087 PMCID: PMC5983794 DOI: 10.3390/ijms19051272] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/19/2018] [Accepted: 04/19/2018] [Indexed: 12/13/2022] Open
Abstract
Tumor progression depends on the process of angiogenesis, which is the formation of new blood vessels. These newly formed blood vessels supply oxygen and nutrients to the tumor, supporting its progression and providing a gateway for tumor metastasis. Tumor angiogenesis is regulated by the balance between angiogenic activators and inhibitors within the tumor microenvironment. Because the newly formed tumor blood vessels originate from preexisting normal vessels, tumor blood vessels, and tumor endothelial cells (TECs) have historically been considered to be the same as normal blood vessels and endothelial cells; however, evidence of TECs’ distinctive abnormal phenotypes has increased. In addition, it has been revealed that TECs constitute a heterogeneous population. Thus, TECs that line tumor blood vessels are important targets in cancer therapy. We have previously reported that TECs induce cancer metastasis. In this review, we describe recent studies on TEC abnormalities related to cancer progression to provide insight into new anticancer therapies.
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Affiliation(s)
- Kyoko Hida
- Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.
| | - Nako Maishi
- Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.
| | - Dorcas A Annan
- Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.
| | - Yasuhiro Hida
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Graduate School of Medicine, Sapporo 060-0815, Japan.
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Sato C, Susa M, Nakamura Y, Nakagawa T, Rikitake H, Kuroyanagi Y, Matsubara A, Tsuda H, Nemoto K, Chiba K. Chondrosarcoma of the small toe in an adult with Down syndrome. J Orthop Sci 2018; 23:433-437. [PMID: 27372575 DOI: 10.1016/j.jos.2016.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/10/2016] [Accepted: 06/13/2016] [Indexed: 10/21/2022]
Affiliation(s)
- Chiaki Sato
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Michiro Susa
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.
| | - Yu Nakamura
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Takahiro Nakagawa
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Hajime Rikitake
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Yuji Kuroyanagi
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Akiko Matsubara
- Department of Basic Pathology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Hitoshi Tsuda
- Department of Basic Pathology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Koichi Nemoto
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Kazuhiro Chiba
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
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Wuopio J, Östgren CJ, Länne T, Lind L, Ruge T, Carlsson AC, Larsson A, Nyström FH, Ärnlöv J. The association between circulating endostatin and a disturbed circadian blood pressure pattern in patients with type 2 diabetes. Blood Press 2018; 27:215-221. [PMID: 29488402 DOI: 10.1080/08037051.2018.1444941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Endostatin, cleaved from collagen XVIII in the extracellular matrix, is a promising circulating biomarker for cardiovascular damage. It possesses anti-angiogenic and anti-fibrotic functions and has even been suggested to be involved in blood pressure regulation. Less is known if endostatin levels relate to circadian blood pressure patterns. In the present paper we studied the association between circulating levels of endostatin and nocturnal dipping in blood pressure. METHODS We used the CARDIPP-study, a cohort of middle aged, type 2 diabetics (n = 593, 32% women), with data on both 24-hour and office blood pressure, serum-endostatin, cardiovascular risk factors, and incident major cardiovascular events. Nocturnal dipping was defined as a >10% difference between day- and night-time blood pressures. RESULTS Two-hundred four participants (34%) were classified as non-dippers. The mean endostatin levels were significantly higher in non-dippers compared to dippers (mean ± standard deviation: 62.6 ± 1.8 µg/l vs. 58.7 ± 1.6 µg/l, respectively, p = .007). Higher serum levels of endostatin were associated with a diminished decline in nocturnal blood pressure adjusted for age, sex, HbA1c, mean systolic day blood pressure, hypertension treatment, glomerular filtration rate, and prevalent cardiovascular disease (regression coefficient per SD increase of endostatin -0.01, 95% CI, -0.02-(-0.001), p = .03). Structural equation modelling analyses suggest that endostatin mediates 7% of the association between non-dipping and major cardiovascular events. CONCLUSION We found an independent association between higher circulating levels of endostatin and a reduced difference between day- and night-time systolic blood pressure in patients with type 2 diabetes. Yet endostatin mediated only a small portion of the association between non-dipping and cardiovascular events arguing against a clinical utility of our findings.
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Affiliation(s)
- Jonas Wuopio
- a Department of Medicine , Mora County Hospital , Mora , Sweden
| | - Carl Johan Östgren
- b Department of Medical and Health Sciences , Linköping University , Linköping , Sweden
| | - Toste Länne
- b Department of Medical and Health Sciences , Linköping University , Linköping , Sweden
| | - Lars Lind
- c Department of Medical Sciences , Uppsala University , Uppsala , Sweden
| | - Toralph Ruge
- d Department of Emergency Medicine , Karolinska University Hospital , Stockholm , Sweden
| | - Axel C Carlsson
- e Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society , Karolinska Institutet , Huddinge , Sweden
| | - Anders Larsson
- c Department of Medical Sciences , Uppsala University , Uppsala , Sweden
| | - Fredrik H Nyström
- b Department of Medical and Health Sciences , Linköping University , Linköping , Sweden
| | - Johan Ärnlöv
- e Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society , Karolinska Institutet , Huddinge , Sweden.,f School of Health and Social Sciences , Dalarna University , Falun , Sweden
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Zbucka-Kretowska M, Charkiewicz K, Goscik J, Wolczynski S, Laudanski P. Maternal plasma angiogenic and inflammatory factor profiling in foetal Down syndrome. PLoS One 2017; 12:e0189762. [PMID: 29244857 PMCID: PMC5731759 DOI: 10.1371/journal.pone.0189762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 12/03/2017] [Indexed: 12/14/2022] Open
Abstract
Objective and design Angiogenic factors are proteins that are related to certain foetal chromosomal abnormalities. The aim of this study was to determine the concentration of 60 angiogenic factors in the plasma of women with offspring possessing trisomy 21/Down syndrome (DS). Method After analysing karyotyping results, we selected 20 patients with foetuses possessing DS, and for the control group, we selected 28 healthy patients with uncomplicated pregnancies who delivered healthy newborns at term (i.e., 15–18 weeks of gestation). To assess the concentration of proteins in the blood plasma, we used a protein macroarray which enabled simultaneous determination of 60 angiogenic factors per sample. Results We observed a statistically significant increase in the concentration of these five angiogenic and inflammatory factors: TGFb1 (p = 0.039), angiostatin (p = 0.0142), I-309 (p = 0.0476), TGFb3 (p = 0.0395), and VEGF-D (p = 0.0173)—compared to concentrations in patients with healthy foetuses. Conclusion Our findings suggest that angiogenic factors may play role in DS pathogenesis.
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Affiliation(s)
- Monika Zbucka-Kretowska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok, Poland
| | - Karol Charkiewicz
- Department of Perinatology and Obstetrics, Medical University of Bialystok, Bialystok, Poland
| | - Joanna Goscik
- Faculty of Computer Science, Bialystok University of Technology, Bialystok, Poland
| | - Slawomir Wolczynski
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok, Poland
| | - Piotr Laudanski
- Department of Perinatology and Obstetrics, Medical University of Bialystok, Bialystok, Poland
- * E-mail:
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14
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Oxidative stress and diabetic retinopathy: development and treatment. Eye (Lond) 2017; 31:1122-1130. [PMID: 28452994 DOI: 10.1038/eye.2017.64] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/14/2017] [Indexed: 02/07/2023] Open
Abstract
Diabetic retinopathy (DR) is the most common microvascular complication in diabetic patients and one of the main causes of acquired blindness in the world. From the 90s until date, the incidence of this complication has increased. Reactive oxygen species (ROS) is a free radical with impaired electron that usually participates in the redox mechanisms of some body molecules such as enzymes, proteins, and so on. In normal biological conditions, ROS is maintained in equilibrium, however its overproduction can lead to biological process called oxidative stress and this is considered the main pathogenesis of DR. The retina is susceptible to ROS because of high-energy demands and exposure to light. When the balance is broken, ROS produces retinal cell injury by interacting with the cellular components. This article describes the possible role of oxidative stress in the development of DR and proposes some treatment options based on its stages. The review of the topic shows that blindness caused by DR can be avoided by early detection and timely treatment.
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15
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Mangum R, Varga E, Boué DR, Capper D, Benesch M, Leonard J, Osorio DS, Pierson CR, Zumberge N, Sahm F, Schrimpf D, Pfister SM, Finlay JL. SHH desmoplastic/nodular medulloblastoma and Gorlin syndrome in the setting of Down syndrome: case report, molecular profiling, and review of the literature. Childs Nerv Syst 2016; 32:2439-2446. [PMID: 27444290 DOI: 10.1007/s00381-016-3185-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 07/07/2016] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Individuals with Down syndrome (DS) have an increased risk of acute leukemia compared to a markedly decreased incidence of solid tumors. Medulloblastoma, the most common malignant brain tumor of childhood, is particularly rare in the DS population, with only one published case. As demonstrated in a mouse model, DS is associated with cerebellar hypoplasia and a decreased number of cerebellar granule neuron progenitor cells (CGNPs) in the external granule cell layer (EGL). Treatment of these mice with sonic hedgehog signaling pathway (Shh) agonists promote normalization of CGNPs and improved cognitive functioning. CASE REPORT We describe a 21-month-old male with DS and concurrent desmoplastic/nodular medulloblastoma (DNMB)-a tumor derived from Shh dysregulation and over-activation of CGNPs. Molecular profiling further classified the tumor into the new consensus SHH molecular subgroup. Additional testing revealed a de novo heterozygous germ line mutation in the PTCH1 gene encoding a tumor suppressor protein in the Shh pathway. DISCUSSION The developmental failure of CGNPs in DS patients offers a plausible explanation for the rarity of medulloblastoma in this population. Conversely, patients with PTCH1 germline mutations experience Shh overstimulation resulting in Gorlin (Nevoid Basal Cell Carcinoma) syndrome and an increased incidence of malignant transformation of CGNPs leading to medulloblastoma formation. This represents the first documented report of an individual with DS simultaneously carrying PTCH1 germline mutation. CONCLUSION We have observed a highly unusual circumstance in which the PTCH1 mutation appears to "trump" the effects of DS in causation of Shh-activated medulloblastoma.
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Affiliation(s)
- Ross Mangum
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA.
| | - Elizabeth Varga
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - Daniel R Boué
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - David Capper
- German Cancer Consortium (DKTK), Core Center Heidelberg, Heidelberg, Germany.,Department of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Martin Benesch
- Division of Pediatric Hematology/Oncology, Medical University of Graz, Graz, Austria
| | - Jeffrey Leonard
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - Diana S Osorio
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - Christopher R Pierson
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - Nicholas Zumberge
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
| | - Felix Sahm
- German Cancer Consortium (DKTK), Core Center Heidelberg, Heidelberg, Germany.,Department of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Daniel Schrimpf
- German Cancer Consortium (DKTK), Core Center Heidelberg, Heidelberg, Germany.,Department of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Stefan M Pfister
- German Cancer Consortium (DKTK), Core Center Heidelberg, Heidelberg, Germany.,Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jonathan L Finlay
- The Divisions of Hematology/Oncology/BMT, Neurosurgery and Neuropathology, the Departments of Pediatrics, Surgery and Pathology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, USA
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16
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Galambos C, Minic AD, Bush D, Nguyen D, Dodson B, Seedorf G, Abman SH. Increased Lung Expression of Anti-Angiogenic Factors in Down Syndrome: Potential Role in Abnormal Lung Vascular Growth and the Risk for Pulmonary Hypertension. PLoS One 2016; 11:e0159005. [PMID: 27487163 PMCID: PMC4972384 DOI: 10.1371/journal.pone.0159005] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 06/24/2016] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND AND AIMS Infants with Down syndrome (DS) or Trisomy 21, are at high risk for developing pulmonary arterial hypertension (PAH), but mechanisms that increase susceptibility are poorly understood. Laboratory studies have shown that early disruption of angiogenesis during development impairs vascular and alveolar growth and causes PAH. Human chromosome 21 encodes known anti-angiogenic factors, including collagen18a1 (endostatin, ES), ß-amyloid peptide (BAP) and Down Syndrome Critical Region 1 (DSCR-1). Therefore, we hypothesized that fetal lungs from subjects with DS are characterized by early over-expression of anti-angiogenic factors and have abnormal lung vascular growth in utero. METHODS Human fetal lung tissue from DS and non-DS subjects were obtained from a biorepository. Quantitative reverse transcriptase PCR (qRT-PCR) was performed to assay 84 angiogenesis-associated genes and individual qRT-PCR was performed for ES, amyloid protein precursor (APP) and DSCR1. Western blot analysis (WBA) was used to assay lung ES, APP and DSCR-1 protein contents. Lung vessel density and wall thickness were determined by morphometric analysis. RESULTS The angiogenesis array identified up-regulation of three anti-angiogenic genes: COL18A1 (ES), COL4A3 (tumstatin) and TIMP3 (tissue inhibitor of metallopeptidase 3) in DS lungs. Single qRT-PCR and WBA showed striking elevations of ES and APP mRNA (p = 0.022 and p = 0.001) and protein (p = 0.040 and p = 0.002; respectively). Vessel density was reduced (p = 0.041) and vessel wall thickness was increased in DS lung tissue (p = 0.033) when compared to non-DS subjects. CONCLUSIONS We conclude that lung anti-angiogenic factors, including COL18A1 (ES), COL4A3, TIMP3 and APP are over-expressed and fetal lung vessel growth is decreased in subjects with DS. We speculate that increased fetal lung anti-angiogenic factor expression due to trisomy 21 impairs lung vascular growth and signaling, which impairs alveolarization and contributes to high risk for PAH during infancy.
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Affiliation(s)
- Csaba Galambos
- Departments of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- * E-mail:
| | - Angela D. Minic
- Departments of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Douglas Bush
- Pediatrics, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Dominique Nguyen
- University of Notre Dame, South Bend, Indiana, United States of America
| | - Blair Dodson
- Pediatric Surgery, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Gregory Seedorf
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Steven H. Abman
- Pediatrics, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
- The Pediatric Heart Lung Center, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado, United States of America
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17
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Hu L, Wang J, Wang Y, Xu H. An integrin αvβ3 antagonistic modified peptide inhibits tumor growth through inhibition of the ERK and AKT signaling pathways. Oncol Rep 2016; 36:1953-62. [PMID: 27499314 DOI: 10.3892/or.2016.4994] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/30/2016] [Indexed: 11/05/2022] Open
Abstract
HM-3, an RGD (Arg-Gly-Asp)-modified antitumor polypeptide designed independently, has been demonstrated for its robust inhibitory effects on tumors. However, the intravenous administration and short half-life in vivo are inconvenient to its clinical application. To solve these issues, PEGylated HM-3 (mPEG-SC20k-HM-3) with prolonged half‑time in vivo and subcutaneous administration was obtained after repeated screening of different types of PEG and numerous efficacy assays. The present study aimed to evaluate the antitumor activity and investigate the mechanism of the modified peptide to interpret the antitumor properties of mPEG-SC20k-HM-3 comprehensively and clearly. The results of the antitumor activity assays in vitro indicated that mPEG-SC20k-HM-3 exhibited a marked inhibitory activity on tumor metastasis and angiogenesis. mPEG-SC20k-HM-3 (73.4 mg/kg, sc) achieved a tumor inhibitory rate of 70.1% in an H460 (human non-small cell lung cancer) xenograft model with scarce cytotoxicity, compared with a rate of 72.2% for Avastin (10.0 mg/kg, iv). The mechanistic study showed that mPEG-SC20k-HM-3 could target integrin αvβ3 to block the downstream ERK and Akt pathways, as the expression levels of VEGF, Akt1, p-Akt1, ERK1/2, p-ERK1/2, MEK1, p-MEK1, integrin αv and β3 were reduced after HUVECs were incubated with mPEG-SC20k-HM-3 for 24 h. In conclusion, the antitumor activity of mPEG-SC20k-HM-3 in vitro and in vivo is promising and the mechanism was clearly reflected in the present study.
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Affiliation(s)
- Lirong Hu
- The Engineering Research Center of Peptide Drug Discovery and Development, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
| | - Jingjing Wang
- The Engineering Research Center of Peptide Drug Discovery and Development, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
| | - Ying Wang
- The Engineering Research Center of Peptide Drug Discovery and Development, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
| | - Hanmei Xu
- The Engineering Research Center of Peptide Drug Discovery and Development, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
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18
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Guzman DC, Olguín HJ, García EH, Peraza AV, de la Cruz DZ, Soto MP. Mechanisms involved in the development of diabetic retinopathy induced by oxidative stress. Redox Rep 2016; 22:10-16. [PMID: 27420399 DOI: 10.1080/13510002.2016.1205303] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is one of the main complications in patients with diabetes and has been the leading cause of visual loss since 1990. Oxidative stress is a biological process resulting from excessive production of reactive oxygen species (ROS). This process contributes to the development of many diseases and disease complications. ROS interact with various cellular components to induce cell injury. Fortunately, there is an antioxidan t system that protects organisms against ROS. Indeed, when ROS exceed antioxidant capacity, the resulting cell injury can cause diverse physiological and pathological changes that could lead to a disease like DR. OBJECTIVE This paper reviews the possible mechanisms of common and novel biomarkers involved in the development of DR and explores how these biomarkers could be used to monitor the damage induced by oxidative stress in DR, which is a significant complication in people with diabetes. CONCLUSION The poor control of glucemy in pacients with DB has been shown contribute to the development of complications in eyes as DR.
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Affiliation(s)
| | - Hugo Juárez Olguín
- b Laboratory of Pharmacology , National Institute of Pediatrics , Mexico.,c Faculty of Medicine, Department of Pharmacology , National Autonomous University of Mexico , Mexico
| | | | | | - Diego Zamora de la Cruz
- c Faculty of Medicine, Department of Pharmacology , National Autonomous University of Mexico , Mexico
| | - Monica Punzo Soto
- b Laboratory of Pharmacology , National Institute of Pediatrics , Mexico
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19
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刘 景, 潘 云, 赵 燕, 刘 美, 陈 敬, 李 春. [A colorimetric method for vascular endothelial growth factor detection based on aptamer and magnetic beads]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2016; 37:210-215. [PMID: 28219865 PMCID: PMC6779658 DOI: 10.3969/j.issn.1673-4254.2017.02.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To develop a novel colorimetric method for detecting the tumor biomarker vascular endothelial growth factor (VEGF) based on aptamer and magnetic beads. METHODS The capture aptamer was hybridized to urease functionalized single-stranded DNA (ssDNA) and immobilize on the surface of magnetic beads by specific biotin-avidin binding. In the presence of VEGF, aptamers bound to VEGF to form a specific stem-loop structure to release the urease functionalized ssDNA. After separation, the supernatant was transferred to a tube and urea and phenol red were added. Urease hydrolyzed urea to produce ammonia to cause an increase of the pH value and a color change of phenol red. The results were inspected with either the naked eyes or by a UV spectrophotometer. RESULTS Under optimized conditions, the detection system showed a good linear relationship for VEGF detection in the range of 0.1 to 10 pmol/L with a detection limit as low as 0.06 pmol/L. The results of VEGF detection in the serum of patients with lung cancer were consistent with those using an ELISA Kit. The results of examination of 10 serum samples with this aptamer-based method and ELISA kit showed that the accuracy of this method was 90%. CONCLUSION This aptamer-based system provides an simple and convenient method for VEGF detection with a high sensitivity and selectivity.
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Affiliation(s)
- 景荣 刘
- 福州市第一医院中西医结合肿瘤科, 福建 福州 350009Department of Oncology with Integrated Traditional Chinese and Western Medicine, First Hospital of Fuzhou, Fuzhou 350009, China
| | - 云苓 潘
- 福州市第一医院中西医结合肿瘤科, 福建 福州 350009Department of Oncology with Integrated Traditional Chinese and Western Medicine, First Hospital of Fuzhou, Fuzhou 350009, China
| | - 燕苹 赵
- 福建医科大学药学院, 福建 福州 350122School of Pharmacy, Fujian Medical University, Fuzhou 350108, China
| | - 美岑 刘
- 福建医科大学药学院, 福建 福州 350122School of Pharmacy, Fujian Medical University, Fuzhou 350108, China
| | - 敬华 陈
- 福建医科大学药学院, 福建 福州 350122School of Pharmacy, Fujian Medical University, Fuzhou 350108, China
| | - 春艳 李
- 福建医科大学药学院, 福建 福州 350122School of Pharmacy, Fujian Medical University, Fuzhou 350108, China
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20
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Salvatore P, Zullo A, Sommese L, Colicchio R, Picascia A, Schiano C, Mancini FP, Napoli C. Infections and cardiovascular disease: is Bartonella henselae contributing to this matter? J Med Microbiol 2015; 64:799-809. [PMID: 26066633 DOI: 10.1099/jmm.0.000099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular disease is still the major cause of death worldwide despite the remarkable progress in its prevention and treatment. Endothelial progenitor cells (EPCs) have recently emerged as key players of vascular repair and regenerative medicine applied to cardiovascular disease. A large amount of effort has been put into discovering the factors that could aid or impair the number and function of EPCs, and also into characterizing these cells at the molecular level in order to facilitate their therapeutic applications in vascular disease. Interestingly, the major cardiovascular risk factors have been associated with reduced number and function of EPCs. The bacterial contribution to cardiovascular disease represents a long-standing controversy. The discovery that Bartonella henselae can infect and damage EPCs revitalizes the enduring debate about the microbiological contribution to atherosclerosis, thus allowing the hypothesis that this infection could impair the cardiovascular regenerative potential and increase the risk for cardiovascular disease. In this review, we summarize the rationale suggesting that Bartonella henselae could favour atherogenesis by infecting and damaging EPCs, thus reducing their vascular repair potential. These mechanisms suggest a novel link between communicable and non-communicable human diseases, and put forward the possibility that Bartonella henselae could enhance the susceptibility and worsen the prognosis in cardiovascular disease.
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Affiliation(s)
- Paola Salvatore
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy.,CEINGE-Advanced Biotechnologies, Naples, Italy
| | - Alberto Zullo
- CEINGE-Advanced Biotechnologies, Naples, Italy.,Department of Sciences and Technologies, University of Sannio, Benevento, Italy
| | - Linda Sommese
- U.O.C. Division of Immunohematology, Transfusion Medicine and Transplant Immunology [SIMT], Regional Reference Laboratory of Transplant Immunology [LIT], Azienda Universitaria Policlinico (AOU) and Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.,Department of Experimental Medicine, Section of Microbiology, Second University of Naples, Naples, Italy
| | - Roberta Colicchio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Antonietta Picascia
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy.,U.O.C. Division of Immunohematology, Transfusion Medicine and Transplant Immunology [SIMT], Regional Reference Laboratory of Transplant Immunology [LIT], Azienda Universitaria Policlinico (AOU) and Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Concetta Schiano
- Foundation SDN, Institute of Diagnostic and Nuclear Development, IRCCS, Naples, Italy
| | | | - Claudio Napoli
- U.O.C. Division of Immunohematology, Transfusion Medicine and Transplant Immunology [SIMT], Regional Reference Laboratory of Transplant Immunology [LIT], Azienda Universitaria Policlinico (AOU) and Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.,Foundation SDN, Institute of Diagnostic and Nuclear Development, IRCCS, Naples, Italy
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Jensen KM, Sevick CJ, Seewald LA, Halbower AC, Davis MM, McCabe ER, Kempe A, Abman SH. Greater Risk of Hospitalization in Children With Down Syndrome and OSA at Higher Elevation. Chest 2015; 147:1344-1351. [DOI: 10.1378/chest.14-1883] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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22
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Jaber AJ, Alkhani AM. Thoracic spinal meningioma in a child with Down syndrome: A case report and review of the literature. INTERNATIONAL JOURNAL OF PEDIATRICS AND ADOLESCENT MEDICINE 2014. [DOI: 10.1016/j.ijpam.2014.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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23
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Abman SH, Baker C, Gien J, Mourani P, Galambos C. The Robyn Barst Memorial Lecture: Differences between the fetal, newborn, and adult pulmonary circulations: relevance for age-specific therapies (2013 Grover Conference series). Pulm Circ 2014; 4:424-40. [PMID: 25621156 PMCID: PMC4278602 DOI: 10.1086/677371] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 04/30/2014] [Indexed: 12/21/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) contributes to poor outcomes in diverse diseases in newborns, infants, and children. Many aspects of pediatric PAH parallel the pathophysiology and disease courses observed in adult patients; however, critical maturational differences exist that contribute to distinct outcomes and therapeutic responses in children. In comparison with adult PAH, disruption of lung vascular growth and development, or angiogenesis, plays an especially prominent role in the pathobiology of pediatric PAH. In children, abnormalities of lung vascular development have consequences well beyond the adverse hemodynamic effects of PAH alone. The developing endothelium also plays critical roles in development of the distal airspace, establishing lung surface area for gas exchange and maintenance of lung structure throughout postnatal life through angiocrine signaling. Impaired functional and structural adaptations of the pulmonary circulation during the transition from fetal to postnatal life contribute significantly to poor outcomes in such disorders as persistent pulmonary hypertension of the newborn, congenital diaphragmatic hernia, bronchopulmonary dysplasia, Down syndrome, and forms of congenital heart disease. In addition, several studies support the hypothesis that early perinatal events that alter lung vascular growth or function may set the stage for increased susceptibility to PAH in adult patients ("fetal programming"). Thus, insights into basic mechanisms underlying unique features of the developing pulmonary circulation, especially as related to preservation of endothelial survival and function, may provide unique therapeutic windows and distinct strategies to improve short- and long-term outcomes of children with PAH.
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Affiliation(s)
- Steven H. Abman
- Department of Pediatrics, Pediatric Heart Lung Center, University of Colorado School of Medicine and Childrens Hospital Colorado, Aurora, Colorado, USA
| | - Christopher Baker
- Department of Pediatrics, Pediatric Heart Lung Center, University of Colorado School of Medicine and Childrens Hospital Colorado, Aurora, Colorado, USA
| | - Jason Gien
- Department of Pediatrics, Pediatric Heart Lung Center, University of Colorado School of Medicine and Childrens Hospital Colorado, Aurora, Colorado, USA
| | - Peter Mourani
- Department of Pediatrics, Pediatric Heart Lung Center, University of Colorado School of Medicine and Childrens Hospital Colorado, Aurora, Colorado, USA
| | - Csaba Galambos
- Department of Pathology, Pediatric Heart Lung Center, University of Colorado School of Medicine and Childrens Hospital Colorado, Aurora, Colorado, USA
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24
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Elsayed SM. The blessing effect of an extra copy of chromosome 21. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2014. [DOI: 10.1016/j.ejmhg.2014.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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25
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Stefos GC, Soppa U, Dierssen M, Becker W. NGF upregulates the plasminogen activation inhibitor-1 in neurons via the calcineurin/NFAT pathway and the Down syndrome-related proteins DYRK1A and RCAN1 attenuate this effect. PLoS One 2013; 8:e67470. [PMID: 23825664 PMCID: PMC3692457 DOI: 10.1371/journal.pone.0067470] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 05/18/2013] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Plasminogen activator inhibitor 1 (PAI-1) is a key regulator of the plasminogen activation system. Although several lines of evidence support a significant role of PAI-1 in the brain, the regulation of its expression in neurons is poorly understood. In the present study we tested the hypothesis that NGF induces the upregulation of PAI-1 via the calcineurin/nuclear factor of activated T cells (NFAT) pathway and analysed whether the overexpression of the Down syndrome-related proteins DYRK1A and RCAN1 modulated the effect of NGF on PAI-1 expression. RESULTS NGF upregulated PAI-1 mRNA levels in primary mouse hippocampal neurons cultured for 3 days in vitro and in the rat pheochromocytoma cell line PC12. Reporter gene assays revealed that NGF activated the calcineurin/NFAT pathway in PC12 cells. Induction of PAI-1 by NGF was sensitive to the calcineurin inhibitor FK506 and the specific inhibition of NFAT activation by the cell permeable VIVIT peptide. Activation of calcineurin/NFAT signalling through other stimuli resulted in a much weaker induction of PAI-1 expression, suggesting that other NGF-induced pathways are involved in PAI-1 upregulation. Overexpression of either DYRK1A or RCAN1 negatively regulated NFAT-dependent transcriptional activity and reduced the upregulation of PAI-1 levels by NGF. CONCLUSION The present results show that the calcineurin/NFAT pathway mediates the upregulation of PAI-1 by NGF. The negative effect of DYRK1A and RCAN1 overexpression on NGF signal transduction in neural cells may contribute to the altered neurodevelopment and brain function in Down syndrome.
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Affiliation(s)
- Georgios C Stefos
- Institute of Pharmacology and Toxicology, Medical Faculty of the RWTH Aachen University, Aachen, Germany.
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Tan IDA, Ricciardelli C, Russell DL. The metalloproteinase ADAMTS1: a comprehensive review of its role in tumorigenic and metastatic pathways. Int J Cancer 2013; 133:2263-76. [PMID: 23444028 DOI: 10.1002/ijc.28127] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 02/14/2013] [Indexed: 01/07/2023]
Abstract
As it was first characterized in 1997, the ADAMTS (A Disintegrin and Metalloprotease with ThromboSpondin motifs) metalloprotease family has been associated with many physiological and pathological conditions. Of the 19 proteases belonging to this family, considerable attention has been devoted to the role of its first member ADAMTS1 in cancer. Elevated ADAMTS1 promotes pro-tumorigenic changes such as increased tumor cell proliferation, inhibited apoptosis and altered vascularization. Importantly, it facilitates significant peritumoral remodeling of the extracellular matrix environment to promote tumor progression and metastasis. However, discrepancy exists, as several studies also depict ADAMTS1 as a tumor suppressor. This article reviews the current understanding of ADAMTS1 regulation and the consequence of its dysregulation in primary cancer and ADAMTS1-mediated pathways of cancer progression and metastasis.
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Affiliation(s)
- Izza de Arao Tan
- Robinson Institute, School of Paediatrics and Reproductive Health, Department of Obstetrics and Gynaecology, Univeristy of Adelaide, South Australia, Australia
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Malik A, Korol A, Weber M, Hankeln T, Avivi A, Band M. Transcriptome analysis of the spalax hypoxia survival response includes suppression of apoptosis and tight control of angiogenesis. BMC Genomics 2012; 13:615. [PMID: 23148642 PMCID: PMC3533650 DOI: 10.1186/1471-2164-13-615] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 11/05/2012] [Indexed: 12/27/2022] Open
Abstract
Background The development of complex responses to hypoxia has played a key role in the evolution of mammals, as inadequate response to this condition is frequently associated with cardiovascular diseases, developmental disorders, and cancers. Though numerous studies have used mice and rats in order to explore mechanisms that contribute to hypoxia tolerance, these studies are limited due to the high sensitivity of most rodents to severe hypoxia. The blind subterranean mole rat Spalax is a hypoxia tolerant rodent, which exhibits unique longevity and therefore has invaluable potential in hypoxia and cancer research. Results Using microarrays, transcript abundance was measured in brain and muscle tissues from Spalax and rat individuals exposed to acute and chronic hypoxia for varying durations. We found that Spalax global gene expression response to hypoxia differs from that of rat and is characterized by the activation of functional groups of genes that have not been strongly associated with the response to hypoxia in hypoxia sensitive mammals. Using functional enrichment analysis of Spalax hypoxia induced genes we found highly significant overrepresentation of groups of genes involved in anti apoptosis, cancer, embryonic/sexual development, epidermal growth factor receptor binding, coordinated suppression and activation of distinct groups of transcription factors and membrane receptors, in addition to angiogenic related processes. We also detected hypoxia induced increases of different critical Spalax hub gene transcripts, including antiangiogenic genes associated with cancer tolerance in Down syndrome human individuals. Conclusions This is the most comprehensive study of Spalax large scale gene expression response to hypoxia to date, and the first to use custom Spalax microarrays. Our work presents novel patterns that may underlie mechanisms with critical importance to the evolution of hypoxia tolerance, with special relevance to medical research.
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Affiliation(s)
- Assaf Malik
- Institute of Evolution, University of Haifa, Israel
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28
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Wu Y, Song W. Regulation of RCAN1 translation and its role in oxidative stress-induced apoptosis. FASEB J 2012; 27:208-21. [PMID: 23038757 DOI: 10.1096/fj.12-213124] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abnormal expression of regulator of calcineurin 1 (RCAN1) has been implicated in Alzheimer's disease (AD) and Down's syndrome (DS). There are two major isoforms of RCAN1, isoforms 1 and 4. RCAN1 isoform 1 is predominantly expressed in the brain, particularly in neurons. In this report, we showed that there are two translation start codons in RCAN1 exon 1 serving as a functional translation initiation site to generate a longer 41-kDa isoform 1 (RCAN1.1L) and a shorter 31-kDa isoform 1 (RCAN1.1S). The first translation initiation site has higher translation efficiency than the downstream second one, and the translation initiation of two AUG sites is by a Cap-dependent mechanism. Short-term expression of RCAN1.1L protected SH-SY5Y cells from oxidative stress-induced apoptosis by inhibiting caspase-3 activation. However, long-term accumulation of RCAN1.1L in SH-SY5Y cells promoted oxidative stress-induced apoptosis via caspase-3 activation, and terminal deoxynucleotidyl transferase dUTP nick end labeling assay showed that the apoptosis ratio was increased to 499.03 ± 47.56% in SH-1.1L cells compared with 283.93 ± 28.66% in control cells. Furthermore, we found that RCAN1.1L is significantly elevated in the AD brains and patients with DS. RCAN1.1S is expressed at a low level in both human cells and brain tissues. Our results defined the regulatory mechanism underlying RCAN1 expression and the roles of RCAN1.1 in oxidative stress-induced neurodegeneration in AD and DS pathogenesis.
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Affiliation(s)
- Yili Wu
- Chongqing City Key Lab of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
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Loitman JE, Gazelle G. Palliative Care for Patients with Down Syndrome #243. J Palliat Med 2011; 14:1174-5. [DOI: 10.1089/jpm.2011.9643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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30
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Costa V, Sommese L, Casamassimi A, Colicchio R, Angelini C, Marchesano V, Milone L, Farzati B, Giovane A, Fiorito C, Rienzo M, Picardi M, Avallone B, Marco Corsi M, Sarubbi B, Calabrò R, Salvatore P, Ciccodicola A, Napoli C. Impairment of circulating endothelial progenitors in Down syndrome. BMC Med Genomics 2010; 3:40. [PMID: 20836844 PMCID: PMC2949777 DOI: 10.1186/1755-8794-3-40] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Accepted: 09/13/2010] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Pathological angiogenesis represents a critical issue in the progression of many diseases. Down syndrome is postulated to be a systemic anti-angiogenesis disease model, possibly due to increased expression of anti-angiogenic regulators on chromosome 21. The aim of our study was to elucidate some features of circulating endothelial progenitor cells in the context of this syndrome. METHODS Circulating endothelial progenitors of Down syndrome affected individuals were isolated, in vitro cultured and analyzed by confocal and transmission electron microscopy. ELISA was performed to measure SDF-1α plasma levels in Down syndrome and euploid individuals. Moreover, qRT-PCR was used to quantify expression levels of CXCL12 gene and of its receptor in progenitor cells. The functional impairment of Down progenitors was evaluated through their susceptibility to hydroperoxide-induced oxidative stress with BODIPY assay and the major vulnerability to the infection with human pathogens. The differential expression of crucial genes in Down progenitor cells was evaluated by microarray analysis. RESULTS We detected a marked decrease of progenitors' number in young Down individuals compared to euploid, cell size increase and some major detrimental morphological changes. Moreover, Down syndrome patients also exhibited decreased SDF-1α plasma levels and their progenitors had a reduced expression of SDF-1α encoding gene and of its membrane receptor. We further demonstrated that their progenitor cells are more susceptible to hydroperoxide-induced oxidative stress and infection with Bartonella henselae. Further, we observed that most of the differentially expressed genes belong to angiogenesis, immune response and inflammation pathways, and that infected progenitors with trisomy 21 have a more pronounced perturbation of immune response genes than infected euploid cells. CONCLUSIONS Our data provide evidences for a reduced number and altered morphology of endothelial progenitor cells in Down syndrome, also showing the higher susceptibility to oxidative stress and to pathogen infection compared to euploid cells, thereby confirming the angiogenesis and immune response deficit observed in Down syndrome individuals.
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Affiliation(s)
- Valerio Costa
- Institute of Genetics and Biophysics A, Buzzati-Traverso, IGB-CNR, Naples, Italy
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