1
|
Elystia S, Priyambada G, Reza M, Sasmita A, Andrio D, Asmura J. Teknologi Pengolahan Air Bersih sebagai Upaya Peningkatan Kesehatan Masyarakat di Desa Bunga Raya, Kabupaten Siak. Jur Abd Masy Ind (JAMSI) 2023; 3:973-982. [DOI: 10.54082/jamsi.792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Salah satu sumber air bersih yang digunakan masyarakat Desa Bunga Raya, Kec. Bunga Raya Kab. Siak untuk mandi, mencuci, masak, dan minum adalah air tanah. Air tanah digunakan bersumber dari sumur gali maupun sumur bor. Dari hasil wawancara dan pengamatan langsung di lapangan warna air sumur masyarakat kuning seperti sirup lemon, baunya seperti bau karat dan bau telur busuk jika baru di pompa, rasanya jika untuk kumur-kumur seperti agak asam dan ngilu di gigi, sehingga jika ini dikonsumsi dan berlangsung dalam jangka waktu yang panjang tanpa tindak lanjut dapat membahayakan masyarakat desa setempat. Melihat kondisi ini tim pengabdian dengan berkoordinasi dengan pejabat setempat (Ketua RT) menyusun jadwal pelaksanaan kegiatan Sosialisasi & Pelatihan Teknologi Pengolahan Air Bersih sebagai Upaya Peningkatan Kesehatan Masyarakat di Desa Bunga Raya, Kec. Bunga Raya Kabupaten Siak. Kegiatan sosialisasi dan pelatihan dilakukan dengan metode penyuluhan dan demonstrasi pembuatan teknologi pengolahan air bersih oleh tim PKM, Mahasiswa Kukerta UNRI, dan warga masyarakat sekitar. Manfaat yang diperoleh peserta dari kegiatan PKM ini antara lain warga masyarakat dapat menjernihkan air secara mandiri dengan teknologi pengolahan air, tercukupi kebutuhan akan air bersih yang sehat, tidak berwarna, tidak berbau dan tidak berasa sebagai bagian dari kebutuhan dasar setiap manusia. Kegiatan pengabdian secara keseluruhan dapat dikatakan baik dan berhasil, dilihat dari ketercapaian tujuan pelatihan (95%), ketercapaian target materi yang telah direncanakan (100%), dan kemampuan peserta dalam penguasaan materi (85%). Teknologi filter pengolahan air yang dirancang menjadi solusi dalam membantu memperbaiki kualitas air sumur gali dan sumur bor sehingga sesuai dengan standar air bersih yang dipersyaratkan.
Collapse
|
2
|
Andrio D, Elystia S, Priyambada G, Reza M, Sasmita A, Asmura J. Pelatihan Pemanfaatan Maggot Black Soldier Fly (BSF) untuk Pengolahan Sampah Organik sebagai Alternatif Pakan Ternak pada Santri Pondok Pesantren Syekh Burhanuddin Kuntu, Kab. Kampar, Prov. Riau. Jur Abd Masy Ind (JAMSI) 2022; 3:35-42. [DOI: 10.54082/jamsi.583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Pondok Pesantren Syekh Burhanuddin berada di Desa Kuntu Kabupaten Kampar. Dengan bertambah jumlah santri setiap tahunnya menyebabkan semakin banyak sampah di lingkungan pesantren. Pengelolaan sampah dipesantren belum baik, sampah hanya dikumpulkan di satu tempat lalu dibakar. Pembakaran dapat menyebabkan pencemaran udara dan akan berdampak pada lingkungan sekitar pesantren. Sesuai Motto yang telah digariskan oleh pendiri Pesantren adalah Tafaqquh Fiddin (mendalami ilmu agama) disamping penguasaan ilmu pengetahuan, juga diperlukan keterampilan. Pondok pesantren mengadakan inovasi/terobosan baru dalam mengembangkan ilmu dan keterampilan yang Tafaqquh Fiddin dengan beberapa program keterampilan life skill. Salah satu keterampilan life skill yang bisa dilakukan yaitu inovasi pengolahan sampah organik sebagai media budidaya Maggot Black Soldier Fly (BSF). Hal tersebut dimulai dari identifikasi masalah bersama dengan para santri, diskusi dan pemberian solusi serta pelatihan budidaya maggot dengan secara interaktif dengan melibatkan teori dan praktek bersamaan agar lebih mudah difahami. Kegiatan pengabdian secara keseluruhan dapat dikatakan baik dan berhasil, dilihat dari ketercapaian tujuan pelatihan (85%), ketercapaian target materi yang telah direncanakan (100%), dan kemampuan peserta dalam penguasaan materi (75%). Tujuan utama dari kegiatan ini sudah tercapai yaitu pengolahan sampah organik untuk mengurangi jumlah sampah di sekitar lingkungan sebagai pakan larva lalat BSF. Selain itu dapat juga memberikan tambahan pendapatan para santri.
Collapse
|
3
|
Rana A, Reza M, Shit G. Electromagnetohydrodynamic thermo-fluidic transport in a porous microchannel with wall roughness. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
4
|
Jivraj A, Evans K, Reza M, Qureshi A, Srinivasan D. EBV-positive mucocutaneous ulceration. Ann R Coll Surg Engl 2021; 103:e335-e337. [PMID: 34436949 DOI: 10.1308/rcsann.2021.0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Ulceration of the oral cavity is common and a frequent reason for referral to secondary and tertiary centres. Epstein-Barr virus (EBV)-related mucocutaneous ulceration, however, is a rare cause of oral ulceration that has been described only recently. Histologically these lesions resemble lymphomas; however, their management and prognosis differ significantly. We present a case of EBV-induced oral ulceration and discuss the diagnosis and management of and available literature for the condition, which was treated successfully through conservative measures alone.
Collapse
Affiliation(s)
- A Jivraj
- Queen's Medical Centre, Nottingham, UK
| | - K Evans
- Queen's Medical Centre, Nottingham, UK
| | - M Reza
- King's Mill Hospital, Sutton-in-Ashfield, UK
| | - A Qureshi
- King's Mill Hospital, Sutton-in-Ashfield, UK
| | | |
Collapse
|
5
|
Abuzaid MM, Tekin HO, Reza M, Elhag IR, Elshami W. Assessment of MRI technologists in acceptance and willingness to integrate artificial intelligence into practice. Radiography (Lond) 2021; 27 Suppl 1:S83-S87. [PMID: 34364784 DOI: 10.1016/j.radi.2021.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/21/2021] [Accepted: 07/01/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The integration of AI in medical imaging has tremendous exponential growth, especially in image production, image processing and image interpretation. It is expected that radiographers working across all imaging modalities have adequate knowledge as they are part of the end-user team. The current study aimed to investigate the knowledge, willingness and challenges facing the Magnetic Resonance Imaging (MRI) technologists in the integration of Artificial Intelligence (AI) into MRI practice. METHODS Total of 120 participants were recruited using a snowball sampling technique. A two-phase study was undertaken using survey and focus group discussion (FGD) to capture participants' knowledge, interpretations, needs and obstacles toward AI integrations in MRI practice. The survey and FGD provided the base to understand the participant's' knowledge, acceptance and needs for AI. RESULTS Results showed medium to high knowledge, excitement about AI integration without disturbance of MRI practice. Participants thought that AI can improve MRI protocol selection (91.8%), reduce the scan time (65.3%), and improve image post-processing (79.5%). Education and learning resources concerning AI were the main obstacles facing MRI technologists. CONCLUSION MRI technologists have the knowledge and possess basic technical information. The application of AI in MRI practice might greatly influence and improve MRI technologist's work. A structured and professional program should be integrated in both undergraduate and continuous education to prepare for effective AI implementation. IMPLICATIONS FOR PRACTICE Application of AI in MRI can be used in many aspects, such as optimize image quality and avoidance of image artifacts. Moreover, AI can play an important role in patient's safety at the MRI unit to reduce incidents. Education, infrastructure, and knowledge of end-users are keys for the incorporation of AI use, development and optimisation.
Collapse
Affiliation(s)
- M M Abuzaid
- Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - H O Tekin
- Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - M Reza
- Shaikh Shakeboat Medical City, Radiology Department, AbuDhabi, United Arab Emirates
| | - I R Elhag
- Shaikh Shakeboat Medical City, Radiology Department, AbuDhabi, United Arab Emirates
| | - W Elshami
- Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
| |
Collapse
|
6
|
Tanveer M, Rashid AH, Ganaie MA, Reza M, Razzak I, Hua KL. Classification of Alzheimer's disease using ensemble of deep neural networks trained through transfer learning. IEEE J Biomed Health Inform 2021; 26:1453-1463. [PMID: 34033550 DOI: 10.1109/jbhi.2021.3083274] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Deep learning; transfer learning; ensemble learning; Alzheimer's disease.
Collapse
|
7
|
Grinev VV, Barneh F, Ilyushonak IM, Nakjang S, Smink J, van Oort A, Clough R, Seyani M, McNeill H, Reza M, Martinez-Soria N, Assi SA, Ramanouskaya TV, Bonifer C, Heidenreich O. RUNX1/RUNX1T1 mediates alternative splicing and reorganises the transcriptional landscape in leukemia. Nat Commun 2021; 12:520. [PMID: 33483506 PMCID: PMC7822815 DOI: 10.1038/s41467-020-20848-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/14/2020] [Indexed: 01/30/2023] Open
Abstract
The fusion oncogene RUNX1/RUNX1T1 encodes an aberrant transcription factor, which plays a key role in the initiation and maintenance of acute myeloid leukemia. Here we show that the RUNX1/RUNX1T1 oncogene is a regulator of alternative RNA splicing in leukemic cells. The comprehensive analysis of RUNX1/RUNX1T1-associated splicing events identifies two principal mechanisms that underlie the differential production of RNA isoforms: (i) RUNX1/RUNX1T1-mediated regulation of alternative transcription start site selection, and (ii) direct or indirect control of the expression of genes encoding splicing factors. The first mechanism leads to the expression of RNA isoforms with alternative structure of the 5'-UTR regions. The second mechanism generates alternative transcripts with new junctions between internal cassettes and constitutive exons. We also show that RUNX1/RUNX1T1-mediated differential splicing affects several functional groups of genes and produces proteins with unique conserved domain structures. In summary, this study reveals alternative splicing as an important component of transcriptome re-organization in leukemia by an aberrant transcriptional regulator.
Collapse
Affiliation(s)
- Vasily V. Grinev
- grid.17678.3f0000 0001 1092 255XDepartment of Genetics, Faculty of Biology, Belarusian State University, 220030 Minsk, Republic of Belarus
| | - Farnaz Barneh
- grid.487647.ePrincess Maxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands
| | - Ilya M. Ilyushonak
- grid.17678.3f0000 0001 1092 255XDepartment of Genetics, Faculty of Biology, Belarusian State University, 220030 Minsk, Republic of Belarus
| | - Sirintra Nakjang
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Job Smink
- grid.487647.ePrincess Maxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands
| | - Anita van Oort
- grid.487647.ePrincess Maxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands
| | - Richard Clough
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Michael Seyani
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Hesta McNeill
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Mojgan Reza
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Natalia Martinez-Soria
- grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Salam A. Assi
- grid.6572.60000 0004 1936 7486Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
| | - Tatsiana V. Ramanouskaya
- grid.17678.3f0000 0001 1092 255XDepartment of Genetics, Faculty of Biology, Belarusian State University, 220030 Minsk, Republic of Belarus
| | - Constanze Bonifer
- grid.6572.60000 0004 1936 7486Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
| | - Olaf Heidenreich
- grid.487647.ePrincess Maxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands ,grid.1006.70000 0001 0462 7212Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU UK ,grid.1006.70000 0001 0462 7212Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| |
Collapse
|
8
|
Passarelli C, Selvatici R, Carrieri A, Di Raimo FR, Falzarano MS, Fortunato F, Rossi R, Straub V, Bushby K, Reza M, Zharaieva I, D'Amico A, Bertini E, Merlini L, Sabatelli P, Borgiani P, Novelli G, Messina S, Pane M, Mercuri E, Claustres M, Tuffery-Giraud S, Aartsma-Rus A, Spitali P, T'Hoen PAC, Lochmüller H, Strandberg K, Al-Khalili C, Kotelnikova E, Lebowitz M, Schwartz E, Muntoni F, Scapoli C, Ferlini A. Tumor Necrosis Factor Receptor SF10A (TNFRSF10A) SNPs Correlate With Corticosteroid Response in Duchenne Muscular Dystrophy. Front Genet 2020; 11:605. [PMID: 32719714 PMCID: PMC7350910 DOI: 10.3389/fgene.2020.00605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 05/18/2020] [Indexed: 12/23/2022] Open
Abstract
Background Duchenne muscular dystrophy (DMD) is a rare and severe X-linked muscular dystrophy in which the standard of care with variable outcome, also due to different drug response, is chronic off-label treatment with corticosteroids (CS). In order to search for SNP biomarkers for corticosteroid responsiveness, we genotyped variants across 205 DMD-related genes in patients with differential response to steroid treatment. Methods and Findings We enrolled a total of 228 DMD patients with identified dystrophin mutations, 78 of these patients have been under corticosteroid treatment for at least 5 years. DMD patients were defined as high responders (HR) if they had maintained the ability to walk after 15 years of age and low responders (LR) for those who had lost ambulation before the age of 10 despite corticosteroid therapy. Based on interactome mapping, we prioritized 205 genes and sequenced them in 21 DMD patients (discovery cohort or DiC = 21). We identified 43 SNPs that discriminate between HR and LR. Discriminant Analysis of Principal Components (DAPC) prioritized 2 response-associated SNPs in the TNFRSF10A gene. Validation of this genotype was done in two additional larger cohorts composed of 46 DMD patients on corticosteroid therapy (validation cohorts or VaC1), and 150 non ambulant DMD patients and never treated with corticosteroids (VaC2). SNP analysis in all validation cohorts (N = 207) showed that the CT haplotype is significantly associated with HR DMDs confirming the discovery results. Conclusion We have shown that TNFRSF10A CT haplotype correlates with corticosteroid response in DMD patients and propose it as an exploratory CS response biomarker.
Collapse
Affiliation(s)
- Chiara Passarelli
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,U.O.C. Laboratory of Medical Genetics, Paediatric Hospital Bambino Gesù, IRCCS, Rome, Italy
| | - Rita Selvatici
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alberto Carrieri
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | | | - Maria Sofia Falzarano
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fernanda Fortunato
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Rachele Rossi
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Volker Straub
- John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Katie Bushby
- John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Mojgan Reza
- John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Irina Zharaieva
- Dubowitz Neuromuscular Center, University College London Institute of Child Health & Great Ormond Street Hospital, London, United Kingdom
| | - Adele D'Amico
- Molecular Medicine and Unit of Neuromuscular and Neurodegenerative Diseases, Paediatric Hospital Bambino Gesù, IRCCS, Rome, Italy
| | - Enrico Bertini
- Molecular Medicine and Unit of Neuromuscular and Neurodegenerative Diseases, Paediatric Hospital Bambino Gesù, IRCCS, Rome, Italy
| | - Luciano Merlini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Patrizia Sabatelli
- IRCCS Rizzoli & Institute of Molecular Genetics, National Research Council of Italy, Bologna, Italy
| | - Paola Borgiani
- Genetics Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Novelli
- Genetics Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.,Istituto Neuromed, IRCCS, Pozzilli, Italy
| | - Sonia Messina
- Department of Clinical and Experimental Medicine, Nemo Sud Clinical Center, University of Messina, Messina, Italy
| | - Marika Pane
- Paediatric Neurology Unit, Centro Clinico Nemo, IRCCS Fondazione Policlinico A. Gemelli, Universita' Cattolica del Sacro Cuore, Rome, Italy
| | - Eugenio Mercuri
- Paediatric Neurology Unit, Centro Clinico Nemo, IRCCS Fondazione Policlinico A. Gemelli, Universita' Cattolica del Sacro Cuore, Rome, Italy
| | - Mireille Claustres
- Laboratory of Genetics of Rare Diseases, University of Montpellier, Montpellier, France
| | - Sylvie Tuffery-Giraud
- Laboratory of Genetics of Rare Diseases, University of Montpellier, Montpellier, France
| | - Annemieke Aartsma-Rus
- John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom.,Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Pietro Spitali
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Peter A C T'Hoen
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands.,Center for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hanns Lochmüller
- Department of Neuropediatrics and Muscle Disorders, Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany.,Centro Nacional de Análisis Genómico (CNAG-CRG), Center for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.,Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada.,Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, ON, Canada.,Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Kristin Strandberg
- Department of Systems Biology, School of Chemistry, Biotechnology and Health, KTH - Royal Institute of Technology, Stockholm, Sweden
| | - Cristina Al-Khalili
- Department of Systems Biology, School of Chemistry, Biotechnology and Health, KTH - Royal Institute of Technology, Stockholm, Sweden
| | | | | | | | - Francesco Muntoni
- Dubowitz Neuromuscular Center, University College London Institute of Child Health & Great Ormond Street Hospital, London, United Kingdom.,NIH Great Ormond Street Hospital Biomedical Research Centre, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom.,Great Ormond Street Hospital Trust, London, United Kingdom
| | - Chiara Scapoli
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Alessandra Ferlini
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Dubowitz Neuromuscular Center, University College London Institute of Child Health & Great Ormond Street Hospital, London, United Kingdom
| |
Collapse
|
9
|
Spitali P, Zaharieva I, Bohringer S, Hiller M, Chaouch A, Roos A, Scotton C, Claustres M, Bello L, McDonald CM, Hoffman EP, Koeks Z, Eka Suchiman H, Cirak S, Scoto M, Reza M, 't Hoen PAC, Niks EH, Tuffery-Giraud S, Lochmüller H, Ferlini A, Muntoni F, Aartsma-Rus A. TCTEX1D1 is a genetic modifier of disease progression in Duchenne muscular dystrophy. Eur J Hum Genet 2020; 28:815-825. [PMID: 31896777 PMCID: PMC7253478 DOI: 10.1038/s41431-019-0563-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 11/08/2019] [Accepted: 12/03/2019] [Indexed: 11/29/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is caused by pathogenic variants in the DMD gene leading to the lack of dystrophin. Variability in the disease course suggests that other factors influence disease progression. With this study we aimed to identify genetic factors that may account for some of the variability in the clinical presentation. We compared whole-exome sequencing (WES) data in 27 DMD patients with extreme phenotypes to identify candidate variants that could affect disease progression. Validation of the candidate SNPs was performed in two independent cohorts including 301 (BIO-NMD cohort) and 109 (CINRG cohort of European ancestry) DMD patients, respectively. Variants in the Tctex1 domain containing 1 (TCTEX1D1) gene on chromosome 1 were associated with age of ambulation loss. The minor alleles of two independent variants, known to affect TCTEX1D1 coding sequence and induce skipping of its exon 4, were associated with earlier loss of ambulation. Our data show that disease progression of DMD is affected by a new locus on chromosome 1 and demonstrate the possibility to identify genetic modifiers in rare diseases by studying WES data in patients with extreme phenotypes followed by multiple layers of validation.
Collapse
Affiliation(s)
- Pietro Spitali
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.
| | - Irina Zaharieva
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK.
| | - Stefan Bohringer
- Department of Medical Statistics, Leiden University Medical Center, Leiden, The Netherlands
| | - Monika Hiller
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Amina Chaouch
- John Walton Muscular Dystrophy Research Centre, Newcastle University, Newcastle upon Tyne, UK.,Greater Manchester Neuroscience Centre, Salford Royal Foundation Trust, Salford, UK
| | - Andreas Roos
- John Walton Muscular Dystrophy Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Chiara Scotton
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
| | - Mireille Claustres
- Laboratory of Genetics of Rare Diseases (LGMR - EA7402), University of Montpellier, Montpellier, France
| | - Luca Bello
- Center for Genetic Medicine Research, Children's National Medical Center, Washington, DC, USA.,Department of Neuroscience, University of Padova, Padova, Italy
| | - Craig M McDonald
- University of California Davis Medical Center, Sacramento, CA, USA
| | - Eric P Hoffman
- Center for Genetic Medicine Research, Children's National Medical Center, Washington, DC, USA
| | | | - Zaida Koeks
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - H Eka Suchiman
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sebahattin Cirak
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK.,Department of Pediatrics, University Hospital Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Mariacristina Scoto
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Mojgan Reza
- John Walton Muscular Dystrophy Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Peter A C 't Hoen
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Erik H Niks
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sylvie Tuffery-Giraud
- Laboratory of Genetics of Rare Diseases (LGMR - EA7402), University of Montpellier, Montpellier, France
| | - Hanns Lochmüller
- John Walton Muscular Dystrophy Research Centre, Newcastle University, Newcastle upon Tyne, UK.,Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, Canada.,Brain and Mind Research Institute, University of Ottawa, Ottawa, Canada
| | - Alessandra Ferlini
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Ferrara, Italy
| | - Francesco Muntoni
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK.,National Institute for Health Research, Great Ormond Street Institute of Child Health Biomedical Research Centre, University College London, London, UK
| | - Annemieke Aartsma-Rus
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,John Walton Muscular Dystrophy Research Centre, Newcastle University, Newcastle upon Tyne, UK
| |
Collapse
|
10
|
Strandberg K, Ayoglu B, Roos A, Reza M, Niks E, Signorelli M, Fasterius E, Pontén F, Lochmüller H, Domingos J, Ala P, Muntoni F, Aartsma-Rus A, Spitali P, Nilsson P, Szigyarto CAK. Blood-derived biomarkers correlate with clinical progression in Duchenne muscular dystrophy. J Neuromuscul Dis 2020; 7:231-246. [PMID: 32390640 PMCID: PMC7369103 DOI: 10.3233/jnd-190454] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Duchenne Muscular Dystrophy is a severe, incurable disorder caused by mutations in the dystrophin gene. The disease is characterized by decreased muscle function, impaired muscle regeneration and increased inflammation. In a clinical context, muscle deterioration, is evaluated using physical tests and analysis of muscle biopsies, which fail to accurately monitor the disease progression. OBJECTIVES This study aims to confirm and asses the value of blood protein biomarkers as disease progression markers using one of the largest longitudinal collection of samples. METHODS A total of 560 samples, both serum and plasma, collected at three clinical sites are analyzed using a suspension bead array platform to assess 118 proteins targeted by 250 antibodies in microliter amount of samples. RESULTS Nine proteins are confirmed as disease progression biomarkers in both plasma and serum. Abundance of these biomarkers decreases as the disease progresses but follows different trajectories. While carbonic anhydrase 3, microtubule associated protein 4 and collagen type I alpha 1 chain decline rather constantly over time, myosin light chain 3, electron transfer flavoprotein A, troponin T, malate dehydrogenase 2, lactate dehydrogenase B and nestin plateaus in early teens. Electron transfer flavoprotein A, correlates with the outcome of 6-minutes-walking-test whereas malate dehydrogenase 2 together with myosin light chain 3, carbonic anhydrase 3 and nestin correlate with respiratory capacity. CONCLUSIONS Nine biomarkers have been identified that correlate with disease milestones, functional tests and respiratory capacity. Together these biomarkers recapitulate different stages of the disorder that, if validated can improve disease progression monitoring.
Collapse
Affiliation(s)
- Kristin Strandberg
- Department of Protein Science, School of Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Burcu Ayoglu
- Department of Protein Science, SciLifeLab, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Andreas Roos
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
- Leibniz-Institut für Analytische Wissenschaften (ISAS), Dortmund, Germany
| | - Mojgan Reza
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Erik Niks
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mirko Signorelli
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Erik Fasterius
- Department of Protein Science, School of Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Fredrik Pontén
- Department of Immunology, SciLifeLab, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Hanns Lochmüller
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
- Department of Neuropediatrics and Muscle Disorders, Medical Center –University of Freiburg, Faculty of Medicine, Freiburg, Germany
- Centro Nacional de Análisis Genómico (CNAGCRG), Center for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Joana Domingos
- The Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, UK
| | - Pierpaolo Ala
- The Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, UK
| | - Francesco Muntoni
- The Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, UK
- National Institute for Health Research, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, United Kingdom
| | - Annemieke Aartsma-Rus
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Pietro Spitali
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Peter Nilsson
- Department of Protein Science, SciLifeLab, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Cristina Al-Khalili Szigyarto
- Department of Protein Science, School of Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, Stockholm, Sweden
- Department of Protein Science, SciLifeLab, KTH-Royal Institute of Technology, Stockholm, Sweden
| |
Collapse
|
11
|
Martinez-Soria N, McKenzie L, Draper J, Ptasinska A, Issa H, Potluri S, Blair HJ, Pickin A, Isa A, Chin PS, Tirtakusuma R, Coleman D, Nakjang S, Assi S, Forster V, Reza M, Law E, Berry P, Mueller D, Osborne C, Elder A, Bomken SN, Pal D, Allan JM, Veal GJ, Cockerill PN, Wichmann C, Vormoor J, Lacaud G, Bonifer C, Heidenreich O. The Oncogenic Transcription Factor RUNX1/ETO Corrupts Cell Cycle Regulation to Drive Leukemic Transformation. Cancer Cell 2019; 35:705. [PMID: 30991028 PMCID: PMC6472942 DOI: 10.1016/j.ccell.2019.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
Martinez-Soria N, McKenzie L, Draper J, Ptasinska A, Issa H, Potluri S, Blair HJ, Pickin A, Isa A, Chin PS, Tirtakusuma R, Coleman D, Nakjang S, Assi S, Forster V, Reza M, Law E, Berry P, Mueller D, Osborne C, Elder A, Bomken SN, Pal D, Allan JM, Veal GJ, Cockerill PN, Wichmann C, Vormoor J, Lacaud G, Bonifer C, Heidenreich O. The Oncogenic Transcription Factor RUNX1/ETO Corrupts Cell Cycle Regulation to Drive Leukemic Transformation. Cancer Cell 2018; 34:626-642.e8. [PMID: 30300583 PMCID: PMC6179967 DOI: 10.1016/j.ccell.2018.08.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 04/20/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
Oncogenic transcription factors such as the leukemic fusion protein RUNX1/ETO, which drives t(8;21) acute myeloid leukemia (AML), constitute cancer-specific but highly challenging therapeutic targets. We used epigenomic profiling data for an RNAi screen to interrogate the transcriptional network maintaining t(8;21) AML. This strategy identified Cyclin D2 (CCND2) as a crucial transmitter of RUNX1/ETO-driven leukemic propagation. RUNX1/ETO cooperates with AP-1 to drive CCND2 expression. Knockdown or pharmacological inhibition of CCND2 by an approved drug significantly impairs leukemic expansion of patient-derived AML cells and engraftment in immunodeficient murine hosts. Our data demonstrate that RUNX1/ETO maintains leukemia by promoting cell cycle progression and identifies G1 CCND-CDK complexes as promising therapeutic targets for treatment of RUNX1/ETO-driven AML.
Collapse
Affiliation(s)
- Natalia Martinez-Soria
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Lynsey McKenzie
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Julia Draper
- Cancer Research UK Manchester Institute, Manchester M20 4GJ, UK
| | - Anetta Ptasinska
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Hasan Issa
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Sandeep Potluri
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Helen J Blair
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Anna Pickin
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Asmida Isa
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Paulynn Suyin Chin
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Ricky Tirtakusuma
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Daniel Coleman
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Sirintra Nakjang
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Salam Assi
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Victoria Forster
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Mojgan Reza
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Ed Law
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Philip Berry
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Dorothee Mueller
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Cameron Osborne
- Department of Medical & Molecular Genetics, King's College London, London SE1 9RT, UK
| | - Alex Elder
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Simon N Bomken
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Deepali Pal
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - James M Allan
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Gareth J Veal
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Peter N Cockerill
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Christian Wichmann
- Department of Transfusion Medicine, Cell Therapeutics and Hemostaseology, Ludwig-Maximilian University Hospital, Munich 80539, Germany
| | - Josef Vormoor
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK; Princess Maxima Center for Pediatric Oncology, Utrecht 3584CS, the Netherlands
| | - Georges Lacaud
- Cancer Research UK Manchester Institute, Manchester M20 4GJ, UK
| | - Constanze Bonifer
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
| | - Olaf Heidenreich
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK; Princess Maxima Center for Pediatric Oncology, Utrecht 3584CS, the Netherlands.
| |
Collapse
|
13
|
|
14
|
Soares BM, Aguilar AM, Silva ER, Coutinho-Neto MD, Hamley IW, Reza M, Ruokolainen J, Alves WA. Chiral organocatalysts based on lipopeptide micelles for aldol reactions in water. Phys Chem Chem Phys 2018; 19:1181-1189. [PMID: 27942644 DOI: 10.1039/c6cp08135e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive study of the self-assembly in water of a lipopeptide consisting of a sequence of l-proline, l-arginine and l-tryptophan with a hydrocarbon chain has been performed. Fluorescence assays were used to determine the critical aggregation concentration. In situ small-angle X-ray scattering (SAXS) and molecular dynamics simulations showed the presence of spherical micelles with diameters around 6 nm. In agreement with these results, cryo-TEM images showed globular aggregates with diameters ranging from ≈4 nm up to ≈9 nm. Furthermore, the lipopeptide catalytic activity has been tested for the direct aldol reaction between cyclohexanone and p-nitrobenzaldehyde, and we have observed that the self-association of the organocatalyst played a critical role in the enhanced activity. Water affects the selectivity, and poor results are obtained under neat reaction conditions. The location of the catalytic groups at the lipopetide/water solvent interface also endowed unusual selectivity in the catalyzed aldol reactions. Under optimized reaction conditions, high yields (up to >99%), good enantioselectivity (ee up to 85%) and high diastereoselectivity (ds up to 92 : 8) were obtained.
Collapse
Affiliation(s)
- B M Soares
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - A M Aguilar
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972270, Brazil
| | - E R Silva
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil
| | - M D Coutinho-Neto
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - I W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - M Reza
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - J Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - W A Alves
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| |
Collapse
|
15
|
Tavakoli Golpaygani A, Movahedi M, Reza M. A Study on Performance and Safety Tests of Defibrillator Equipment. J Biomed Phys Eng 2017; 7:397-402. [PMID: 29445716 PMCID: PMC5809933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/15/2016] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Nowadays, more than 10,000 different types of medical devices can be found in hospitals. This way, medical electrical equipment is being employed in a wide variety of fields in medical sciences with different physiological effects and measurements. Hospitals and medical centers must ensure that their critical medical devices are safe, accurate, reliable and operational at the required level of performance. Defibrillators are critical resuscitation devices. The use of reliable defibirillators has led to more effective treatments and improved patient safety through better control and management of complications during Cardiopulmonary Resuscitation (CPR). MATERIALS AND METHODS The metrological reliability of twenty frequent use, manual defibrillators in use ten hospitals (4 private and 6 public) in one of the provinces of Iran according to international and national standards was evaluated. RESULTS Quantitative analysis of control and instrument accuracy showed the amount of the obtained results in many units are critical which had less value over the standard limitations especially in devices with poor battery. For the accuracy of delivered energy analysis, only twelve units delivered acceptable output values and the precision in the output energy measurements especialy in weak battry condition, after activation of discharge alarm, were low. CONCLUSION Obtained results indicate a need for new and severe regulations on periodic performance verifications and medical equipment quality control program especially for high risk instruments. It is also necessary to provide training courses on the fundumentals of operation and performane parameters for medical staff in the field of meterology in medicine and how one can get good accuracy results especially in high risk medical devices.
Collapse
Affiliation(s)
| | - M.M. Movahedi
- Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
,Ionizing and Non-Ionizing Radiation Protection Research Center, Paramedical Sciences School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M. Reza
- Department of Electrical Engineering, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| |
Collapse
|
16
|
Reza M, Cox D, Phillips L, Johnson D, Manoharan V, Grieves M, Davis B, Roos A, Morgan J, Hanna MG, Muntoni F, Lochmüller H. MRC Centre Neuromuscular Biobank (Newcastle and London): Supporting and facilitating rare and neuromuscular disease research worldwide. Neuromuscul Disord 2017; 27:1054-1064. [PMID: 28864117 PMCID: PMC5678293 DOI: 10.1016/j.nmd.2017.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/30/2017] [Accepted: 07/03/2017] [Indexed: 11/22/2022]
Abstract
Neuromuscular diseases are both genetic and acquired conditions resulting in progressive muscle weakness and wasting which lead to disability and reduced survival. The availability of high-quality human biomaterial is crucial to support biomedical research with potential applications at all stages of development, from molecular pathophysiology to drug discovery, clinical trials and evaluation of biomarkers. Although significant progress has been made over the last few years in the diagnosis of these rare conditions, the genetic defect and underlying pathological abnormality remain unknown in approximately 1/3 of cases. Moreover, to date no definitive cure is available for most neuromuscular disorders, nor are there sufficiently reliable and specific biomarkers to monitor disease progression and response to treatment. This is in part due to the rarity and genetic heterogeneity of neuromuscular diseases and the lack of access to patient samples. The availability of the national MRC Centre Biobank for Neuromuscular Diseases in Newcastle and London has addressed this bottleneck and supported neuromuscular research. Nine years after the establishment of the MRC Centre Biobank, many high profile research publications have highlighted the positive impact of neuromuscular biobanking for translational research and proven this facility to be a unique repository source for diagnostics, basic science research, industry, drug development, and therapy.
Collapse
Affiliation(s)
- Mojgan Reza
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Daniel Cox
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Lauren Phillips
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Diana Johnson
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Vaishnavi Manoharan
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Michael Grieves
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Becky Davis
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Andreas Roos
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Jennifer Morgan
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Michael G Hanna
- National Hospital for Neurology & Neurosurgery, UCL, Queen Square, London, UK
| | - Francesco Muntoni
- Dubowitz Neuromuscular Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Hanns Lochmüller
- John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK.
| |
Collapse
|
17
|
Castelletto V, Kaur A, Kowalczyk RM, Hamley IW, Reza M, Ruokolainen J. Supramolecular Hydrogel Formation in a Series of Self-Assembling Lipopeptides with Varying Lipid Chain Length. Biomacromolecules 2017; 18:2013-2023. [DOI: 10.1021/acs.biomac.7b00057] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- V. Castelletto
- School
of Chemistry, Pharmacy and Food Biosciences. University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - A. Kaur
- School
of Chemistry, Pharmacy and Food Biosciences. University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - R. M. Kowalczyk
- School
of Chemistry, Pharmacy and Food Biosciences. University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - I. W. Hamley
- School
of Chemistry, Pharmacy and Food Biosciences. University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - M. Reza
- Department
of Applied Physics, Aalto University School of Science, Aalto FI-00076, Finland
| | - J. Ruokolainen
- Department
of Applied Physics, Aalto University School of Science, Aalto FI-00076, Finland
| |
Collapse
|
18
|
Castelletto V, Ryumin P, Cramer R, Hamley IW, Taylor M, Allsop D, Reza M, Ruokolainen J, Arnold T, Hermida-Merino D, Garcia CI, Leal MC, Castaño E. Self-Assembly and Anti-Amyloid Cytotoxicity Activity of Amyloid beta Peptide Derivatives. Sci Rep 2017; 7:43637. [PMID: 28272542 PMCID: PMC5341572 DOI: 10.1038/srep43637] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/26/2017] [Indexed: 12/11/2022] Open
Abstract
The self-assembly of two derivatives of KLVFF, a fragment Aβ(16-20) of the amyloid beta (Aβ) peptide, is investigated and recovery of viability of neuroblastoma cells exposed to Aβ (1-42) is observed at sub-stoichiometric peptide concentrations. Fluorescence assays show that NH2-KLVFF-CONH2 undergoes hydrophobic collapse and amyloid formation at the same critical aggregation concentration (cac). In contrast, NH2-K(Boc)LVFF-CONH2 undergoes hydrophobic collapse at a low concentration, followed by amyloid formation at a higher cac. These findings are supported by the β-sheet features observed by FTIR. Electrospray ionization mass spectrometry indicates that NH2-K(Boc)LVFF-CONH2 forms a significant population of oligomeric species above the cac. Cryo-TEM, used together with SAXS to determine fibril dimensions, shows that the length and degree of twisting of peptide fibrils seem to be influenced by the net peptide charge. Grazing incidence X-ray scattering from thin peptide films shows features of β-sheet ordering for both peptides, along with evidence for lamellar ordering of NH2-KLVFF-CONH2. This work provides a comprehensive picture of the aggregation properties of these two KLVFF derivatives and shows their utility, in unaggregated form, in restoring the viability of neuroblastoma cells against Aβ-induced toxicity.
Collapse
Affiliation(s)
- V. Castelletto
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - P. Ryumin
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - R. Cramer
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - I. W. Hamley
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - M. Taylor
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YQ, UK
| | - D. Allsop
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YQ, UK
| | - M. Reza
- Department of Applied Physics, Aalto University School of Science, Aalto FI-00076, Finland
| | - J. Ruokolainen
- Department of Applied Physics, Aalto University School of Science, Aalto FI-00076, Finland
| | - T. Arnold
- Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - D. Hermida-Merino
- European Synchrotron Radiation Facility, ESRF, 71 avenue des Martyrs, 38000 Grenoble, France
| | - C. I. Garcia
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - M. C. Leal
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - E. Castaño
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| |
Collapse
|
19
|
Castelletto V, Kaur A, Hamley I, Barnes RH, Karatzas KA, Hermida-Merino D, Swioklo S, Connon CJ, Stasiak J, Reza M, Ruokolainen J. Hybrid membrane biomaterials from self-assembly in polysaccharide and peptide amphiphile mixtures: controllable structural and mechanical properties and antimicrobial activity. RSC Adv 2017. [DOI: 10.1039/c6ra27244d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Macroscopic capsules, with tunable properties based on hierarchical self-assembly on multiple lengthscales, are prepared from the co-operative self-assembly of polysaccharide and peptide amphiphiles.
Collapse
Affiliation(s)
- V. Castelletto
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - A. Kaur
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - I. W. Hamley
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - R. H. Barnes
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - K.-A. Karatzas
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | | | - S. Swioklo
- Institute of Genetic Medicine
- Newcastle University
- International Centre for Life
- Newcastle upon Tyne NE1 3BZ
- UK
| | - C. J. Connon
- Institute of Genetic Medicine
- Newcastle University
- International Centre for Life
- Newcastle upon Tyne NE1 3BZ
- UK
| | - J. Stasiak
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - M. Reza
- Department of Applied Physics
- Aalto University School of Science
- FI-00076 Aalto
- Finland
| | - J. Ruokolainen
- Department of Applied Physics
- Aalto University School of Science
- FI-00076 Aalto
- Finland
| |
Collapse
|
20
|
Abstract
Duchenne muscular dystrophy (DMD) is a severe, genetic muscle disease caused by the absence of the sarcolemmal protein dystrophin. Gene replacement therapy is considered a potential strategy for the treatment of DMD, aiming to restore the missing protein. Although the elements of the dystrophin molecule have been identified and studies in transgenic mdx mice have explored the importance of a number of these structural domains, the resulting modified dystrophin protein products that have been developed so far are only partially characterized in relation to their structure and function in vivo. To optimize a dystrophin cDNA construct for therapeutic application we designed and produced four human minidystrophins within the packaging capacity of lentiviral vectors. Two novel minidystrophins retained the centrally located neuronal nitric oxide synthase (nNOS)-anchoring domain in order to achieve sarcolemmal nNOS restoration, which is lost in most internally deleted dystrophin constructs. Functionality of the resulting truncated dystrophin proteins was investigated in muscle of adult dystrophin-deficient mdx mice followed by a battery of detailed immunohistochemical and morphometric tests. This initial assessment aimed to determine the overall suitability of various constructs for cloning into lentiviral vectors for ex vivo gene delivery to stem cells for future preclinical studies.
Collapse
Affiliation(s)
- Mojgan Reza
- 1 John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, University of Newcastle , Newcastle upon Tyne, United Kingdom
| | - Steve H Laval
- 1 John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, University of Newcastle , Newcastle upon Tyne, United Kingdom
| | - Andreas Roos
- 1 John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, University of Newcastle , Newcastle upon Tyne, United Kingdom .,2 Leibniz-Institut für Analytische Wissenschaften (ISAS) , Dortmund, Germany
| | - Stephanie Carr
- 1 John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, University of Newcastle , Newcastle upon Tyne, United Kingdom
| | - Hanns Lochmüller
- 1 John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, University of Newcastle , Newcastle upon Tyne, United Kingdom
| |
Collapse
|
21
|
Tavakoli Golpaygani A, Movahedi M, Reza M. A Study on Performance and Safety Tests of Electrosurgical Equipment. J Biomed Phys Eng 2016; 6:175-182. [PMID: 27853725 PMCID: PMC5106550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Modern medicine employs a wide variety of instruments with different physiological effects and measurements. Periodic verifications are routinely used in legal metrology for industrial measuring instruments. The correct operation of electrosurgical generators is essential to ensure patient's safety and management of the risks associated with the use of high and low frequency electrical currents on human body. MATERIAL AND METHODS The metrological reliability of 20 electrosurgical equipment in six hospitals (3 private and 3 public) was evaluated in one of the provinces of Iran according to international and national standards. RESULTS The achieved results show that HF leakage current of ground-referenced generators are more than isolated generators and the power analysis of only eight units delivered acceptable output values and the precision in the output power measurements was low. CONCLUSION Results indicate a need for new and severe regulations on periodic performance verifications and medical equipment quality control program especially in high risk instruments. It is also necessary to provide training courses for operating staff in the field of meterology in medicine to be acquianted with critical parameters to get accuracy results with operation room equipment.
Collapse
Affiliation(s)
| | - M.M. Movahedi
- Ionizing and Non-Ionizing Radiation Protection Research Center, Paramedical Sciences School, Shiraz University of Medical Sciences, Shiraz, Iran
,Department of Medical Physics and Biomedical Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M. Reza
- Department of Electrical Engineering, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| |
Collapse
|
22
|
Meng J, Counsell JR, Reza M, Laval SH, Danos O, Thrasher A, Lochmüller H, Muntoni F, Morgan JE. Autologous skeletal muscle derived cells expressing a novel functional dystrophin provide a potential therapy for Duchenne Muscular Dystrophy. Sci Rep 2016; 6:19750. [PMID: 26813695 PMCID: PMC4728433 DOI: 10.1038/srep19750] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 12/17/2015] [Indexed: 12/21/2022] Open
Abstract
Autologous stem cells that have been genetically modified to express dystrophin are a possible means of treating Duchenne Muscular Dystrophy (DMD). To maximize the therapeutic effect, dystrophin construct needs to contain as many functional motifs as possible, within the packaging capacity of the viral vector. Existing dystrophin constructs used for transduction of muscle stem cells do not contain the nNOS binding site, an important functional motif within the dystrophin gene. In this proof-of-concept study, using stem cells derived from skeletal muscle of a DMD patient (mdcs) transplanted into an immunodeficient mouse model of DMD, we report that two novel dystrophin constructs, C1 (ΔR3-R13) and C2 (ΔH2-R23), can be lentivirally transduced into mdcs and produce dystrophin. These dystrophin proteins were functional in vivo, as members of the dystrophin glycoprotein complex were restored in muscle fibres containing donor-derived dystrophin. In muscle fibres derived from cells that had been transduced with construct C1, the largest dystrophin construct packaged into a lentiviral system, nNOS was restored. The combination of autologous stem cells and a lentivirus expressing a novel dystrophin construct which optimally restores proteins of the dystrophin glycoprotein complex may have therapeutic application for all DMD patients, regardless of their dystrophin mutation.
Collapse
Affiliation(s)
- Jinhong Meng
- The Dubowitz Neuromuscular Centre, Molecular Neurosciences Section, Developmental Neurosciences Programme, UCL Institute of Child Health, 30 Guilford Street, London, UK, WC1N 1EH
| | - John R Counsell
- The Dubowitz Neuromuscular Centre, Molecular Neurosciences Section, Developmental Neurosciences Programme, UCL Institute of Child Health, 30 Guilford Street, London, UK, WC1N 1EH.,UCL Cancer Institute, Paul O'Gorman Building, University College London, 72 Huntley Street, London, UK, WC1E 6BT.,Molecular and Cellular Immunology, Institute of Child Health, University College London, 30 Guilford Street, London, UK, WC1N 1EH
| | - Mojgan Reza
- John Walton Centre for Muscular Dystrophy Research, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK, NE1 3BZ
| | - Steven H Laval
- John Walton Centre for Muscular Dystrophy Research, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK, NE1 3BZ
| | - Olivier Danos
- UCL Cancer Institute, Paul O'Gorman Building, University College London, 72 Huntley Street, London, UK, WC1E 6BT
| | - Adrian Thrasher
- Molecular and Cellular Immunology, Institute of Child Health, University College London, 30 Guilford Street, London, UK, WC1N 1EH
| | - Hanns Lochmüller
- John Walton Centre for Muscular Dystrophy Research, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK, NE1 3BZ
| | - Francesco Muntoni
- The Dubowitz Neuromuscular Centre, Molecular Neurosciences Section, Developmental Neurosciences Programme, UCL Institute of Child Health, 30 Guilford Street, London, UK, WC1N 1EH
| | - Jennifer E Morgan
- The Dubowitz Neuromuscular Centre, Molecular Neurosciences Section, Developmental Neurosciences Programme, UCL Institute of Child Health, 30 Guilford Street, London, UK, WC1N 1EH
| |
Collapse
|
23
|
Mora M, Angelini C, Bignami F, Bodin AM, Crimi M, Di Donato JH, Felice A, Jaeger C, Karcagi V, LeCam Y, Lynn S, Meznaric M, Moggio M, Monaco L, Politano L, de la Paz MP, Saker S, Schneiderat P, Ensini M, Garavaglia B, Gurwitz D, Johnson D, Muntoni F, Puymirat J, Reza M, Voit T, Baldo C, Bricarelli FD, Goldwurm S, Merla G, Pegoraro E, Renieri A, Zatloukal K, Filocamo M, Lochmüller H. The EuroBioBank Network: 10 years of hands-on experience of collaborative, transnational biobanking for rare diseases. Eur J Hum Genet 2015; 23:1116-23. [PMID: 25537360 PMCID: PMC4538193 DOI: 10.1038/ejhg.2014.272] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/15/2014] [Accepted: 11/10/2014] [Indexed: 11/09/2022] Open
Abstract
The EuroBioBank (EBB) network (www.eurobiobank.org) is the first operating network of biobanks in Europe to provide human DNA, cell and tissue samples as a service to the scientific community conducting research on rare diseases (RDs). The EBB was established in 2001 to facilitate access to RD biospecimens and associated data; it obtained funding from the European Commission in 2002 (5th framework programme) and started operation in 2003. The set-up phase, during the EC funding period 2003-2006, established the basis for running the network; the following consolidation phase has seen the growth of the network through the joining of new partners, better network cohesion, improved coordination of activities, and the development of a quality-control system. During this phase the network participated in the EC-funded TREAT-NMD programme and was involved in planning of the European Biobanking and Biomolecular Resources Research Infrastructure. Recently, EBB became a partner of RD-Connect, an FP7 EU programme aimed at linking RD biobanks, registries, and bioinformatics data. Within RD-Connect, EBB contributes expertise, promotes high professional standards, and best practices in RD biobanking, is implementing integration with RD patient registries and 'omics' data, thus challenging the fragmentation of international cooperation on the field.
Collapse
Affiliation(s)
- Marina Mora
- Muscle Cell Biology Lab, Neuromuscular Diseases and Neuroimmunolgy Unit, Fondazione Istituto Neurologico C. Besta, Milano, Italy
| | - Corrado Angelini
- IRCCS Fondazione San Camillo Hospital, Lido Venice, Italy
- Department of Neurosciences, NPSRR University of Padova, Padova, Italy
| | | | - Anne-Mary Bodin
- EURORDIS, European Organisation for Rare Diseases, Paris, France
| | | | | | - Alex Felice
- Laboratory of Molecular Genetics and Malta BioBank, University of Malta, and Thalassaemia Clinic, Mater Dei Hospital, Msida, Malta
| | | | - Veronika Karcagi
- Department of Molecular Genetics and Diagnostics, National Institute of Environmental Health, Budapest, Hungary
| | - Yann LeCam
- EURORDIS, European Organisation for Rare Diseases, Paris, France
| | - Stephen Lynn
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, UK
| | - Marija Meznaric
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Maurizio Moggio
- Neuromuscular Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Dino Ferrari Centre, University of Milan, Milan, Italy
| | | | - Luisa Politano
- Division of Cardiomyology and Medical Genetics, Department of Experimental Medicine, Second University of Naples, Naples, Italy
| | - Manuel Posada de la Paz
- Manuel Posada de la Paz, Institute of Rare Diseases Research, IIER, ISCIII and Spain RDR & CIBERER, Madrid, Spain
| | | | - Peter Schneiderat
- Muscle Tissue Culture Collection, Friedrich-Baur-Institute, Neurological Department, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Monica Ensini
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, UK
| | - Barbara Garavaglia
- Molecular Neurogenetics Unit, Fondazione Istituto Neurologico C. Besta, Milano, Italy
| | - David Gurwitz
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Diana Johnson
- Dubowitz Neuromuscular Centre, MRC Neuromuscular Centre at UCL Institute of Child Health, London, UK
| | - Francesco Muntoni
- Dubowitz Neuromuscular Centre, MRC Neuromuscular Centre at UCL Institute of Child Health, London, UK
| | - Jack Puymirat
- Department of Human Genetics, Centre Hospitalier Universitaire de Quebec, Quebec City, Quebec, Canada
| | - Mojgan Reza
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, UK
| | - Thomas Voit
- Inserm U974—Institute of Myology, University Pierre and Marie Curie Paris 6, Paris, France
| | - Chiara Baldo
- Laboratorio di Genetica Umana, E.O. Ospedali Galliera, Genova, Italy
| | | | - Stefano Goldwurm
- Parkinson Institute, Istituti Clinici di Perfezionamento, Milano, Italy
| | - Giuseppe Merla
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | - Elena Pegoraro
- Department of Neurosciences, NPSRR University of Padova, Padova, Italy
| | - Alessandra Renieri
- Division of Medical Genetics, University of Siena, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Kurt Zatloukal
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Mirella Filocamo
- Centro di Diagnostica Genetica e Biochimica delle Malattie Metaboliche, Istituto G. Gaslini, Genova, Italy
| | - Hanns Lochmüller
- MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, UK
| |
Collapse
|
24
|
Karim AKMB, Joarder A, Kamal T, Akhter N, Reza M, Hasan K, Hossain Z, Shankar K, Chandy MJ. Congenital dermoid inclusion cyst over the anterior fontanelle: report of two cases. Pulse (Basel) 2015. [DOI: 10.3329/pulse.v7i1.23249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Congenital dermoid inclusion cyst over the anterior fontanelle (CDIC) is an uncommon cystic lesion. It is a benign and curative lesion. In these two cases a soft, cystic mass located over the anterior fontanelle. The cyst had no intracranial extension and was easily excised intact. The clinical and image findings of the cysts were described and compared with the usual dermoids. Many different types of lesions over the children's skull exist and some are commonly diagnosed in daily practice. Congenital dermoid inclusion cyst over the anterior fontanelle (CDIC) is a rare and benign lesion.Pulse Vol.7 January-December 2014 p.42-45
Collapse
|
25
|
|
26
|
Castelletto V, Hamley IW, Reza M, Ruokolainen J. Interactions between lipid-free apolipoprotein-AI and a lipopeptide incorporating the RGDS cell adhesion motif. Nanoscale 2015; 7:171-178. [PMID: 25406726 DOI: 10.1039/c4nr05072j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The interaction of a designed bioactive lipopeptide C16-GGGRGDS, comprising a hexadecyl lipid chain attached to a functional heptapeptide, with the lipid-free apoliprotein, Apo-AI, is examined. This apolipoprotein is a major component of high density lipoprotein and it is involved in lipid metabolism and may serve as a biomarker for cardiovascular disease and Alzheimers' disease. We find via isothermal titration calorimetry that binding between the lipopeptide and Apo-AI occurs up to a saturation condition, just above equimolar for a 10.7 μM concentration of Apo-AI. A similar value is obtained from circular dichroism spectroscopy, which probes the reduction in α-helical secondary structure of Apo-AI upon addition of C16-GGGRGDS. Electron microscopy images show a persistence of fibrillar structures due to self-assembly of C16-GGGRGDS in mixtures with Apo-AI above the saturation binding condition. A small fraction of spheroidal or possibly "nanodisc" structures was observed. Small-angle X-ray scattering (SAXS) data for Apo-AI can be fitted using a published crystal structure of the Apo-AI dimer. The SAXS data for the lipopeptide/Apo-AI mixtures above the saturation binding conditions can be fitted to the contribution from fibrillar structures coexisting with flat discs corresponding to Apo-AI/lipopeptide aggregates.
Collapse
Affiliation(s)
- V Castelletto
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK.
| | | | | | | |
Collapse
|
27
|
Jones R, Reza M, Massard C, Aspegren J, Mattila L, Edenbrandt L, Bjartell A, Mustonen M, Fizazi K. Relationship of Bone Scan Index and Progression-Free Survival Data for Metastatic Crpc Patients Who Received Odm-201. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
28
|
Boczonadi V, Müller JS, Pyle A, Munkley J, Dor T, Quartararo J, Ferrero I, Karcagi V, Giunta M, Polvikoski T, Birchall D, Princzinger A, Cinnamon Y, Lützkendorf S, Piko H, Reza M, Florez L, Santibanez-Koref M, Griffin H, Schuelke M, Elpeleg O, Kalaydjieva L, Lochmüller H, Elliott DJ, Chinnery PF, Edvardson S, Horvath R. EXOSC8 mutations alter mRNA metabolism and cause hypomyelination with spinal muscular atrophy and cerebellar hypoplasia. Nat Commun 2014; 5:4287. [PMID: 24989451 PMCID: PMC4102769 DOI: 10.1038/ncomms5287] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 06/03/2014] [Indexed: 12/21/2022] Open
Abstract
The exosome is a multi-protein complex, required for the degradation of AU-rich element (ARE) containing messenger RNAs (mRNAs). EXOSC8 is an essential protein of the exosome core, as its depletion causes a severe growth defect in yeast. Here we show that homozygous missense mutations in EXOSC8 cause progressive and lethal neurological disease in 22 infants from three independent pedigrees. Affected individuals have cerebellar and corpus callosum hypoplasia, abnormal myelination of the central nervous system or spinal motor neuron disease. Experimental downregulation of EXOSC8 in human oligodendroglia cells and in zebrafish induce a specific increase in ARE mRNAs encoding myelin proteins, showing that the imbalanced supply of myelin proteins causes the disruption of myelin, and explaining the clinical presentation. These findings show the central role of the exosomal pathway in neurodegenerative disease. The exosome is responsible for mRNA degradation, which is an important step in the regulation of gene expression. Here the authors report that homozygous missense mutations in the exosome subunit, EXOSC8, may cause neurodegenerative disease in infants through the dysregulation of myelin expression.
Collapse
Affiliation(s)
- Veronika Boczonadi
- 1] Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK [2]
| | - Juliane S Müller
- 1] Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK [2]
| | - Angela Pyle
- 1] Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK [2]
| | - Jennifer Munkley
- 1] Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK [2]
| | - Talya Dor
- The Monique and Jacques Roboh Department of Genetic Research, Hadassah- Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Jade Quartararo
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, Parma 43124, Italy
| | - Ileana Ferrero
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, Parma 43124, Italy
| | - Veronika Karcagi
- Department of Molecular Genetics and Diagnostics, NIEH, Albert Florian ut 2-6, Budapest 1097, Hungary
| | - Michele Giunta
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Tuomo Polvikoski
- Department of Pathology, Institute for Ageing and Health, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK
| | - Daniel Birchall
- Neuroradiology Department, Regional Neurosciences Centre, Queen Victoria Road, Newcastle upon Tyne NE1 4PL, UK
| | - Agota Princzinger
- Department of Paediatrics, Josa Andras Hospital, Szent Istvan utca 6, Nyiregyhaza 4400, Hungary
| | - Yuval Cinnamon
- 1] The Monique and Jacques Roboh Department of Genetic Research, Hadassah- Hebrew University Medical Center, Jerusalem 91120, Israel [2] Department of Poultry and Aquaculture Sciences, Institute of Animal Science, Agricultural Research Organization, The Volcani Center, P.O.Box 6, Bet Dagan 50250, Israel
| | - Susanne Lützkendorf
- Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité-Universitätsmedizin, Charité-Platz 1, 10117 Berlin, Germany
| | - Henriett Piko
- Department of Molecular Genetics and Diagnostics, NIEH, Albert Florian ut 2-6, Budapest 1097, Hungary
| | - Mojgan Reza
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Laura Florez
- Western Australian Institute for Medical Research/Centre for Medical Research, The University of Western Australia, 35 Stirling Highway Crawley, Western Australia 6009 Perth, Australia
| | - Mauro Santibanez-Koref
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Helen Griffin
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Markus Schuelke
- Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité-Universitätsmedizin, Charité-Platz 1, 10117 Berlin, Germany
| | - Orly Elpeleg
- The Monique and Jacques Roboh Department of Genetic Research, Hadassah- Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Luba Kalaydjieva
- Western Australian Institute for Medical Research/Centre for Medical Research, The University of Western Australia, 35 Stirling Highway Crawley, Western Australia 6009 Perth, Australia
| | - Hanns Lochmüller
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - David J Elliott
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Patrick F Chinnery
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Shimon Edvardson
- The Monique and Jacques Roboh Department of Genetic Research, Hadassah- Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Rita Horvath
- Institute of Genetic Medicine, Wellcome Trust Centre for Mitochondrial Research, Newcastle University, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| |
Collapse
|
29
|
Meng J, Counsell J, Reza M, Laval S, Lochmüller H, Thrasher A, Muntoni F, Morgan J. O02 Optidystrophin in DMD stem cells. Neuromuscul Disord 2014. [DOI: 10.1016/s0960-8966(14)70003-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
30
|
Reza M, Laval S, Counsell J, Muntoni F, Morgan J, Lochmüller H. P20 Optimised dystrophin mini-constructs for gene delivery. Neuromuscul Disord 2014. [DOI: 10.1016/s0960-8966(14)70036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
31
|
Almalki A, Alston CL, Parker A, Simonic I, Mehta SG, He L, Reza M, Oliveira JM, Lightowlers RN, McFarland R, Taylor RW, Chrzanowska-Lightowlers ZM. Mutation of the human mitochondrial phenylalanine-tRNA synthetase causes infantile-onset epilepsy and cytochrome c oxidase deficiency. Biochim Biophys Acta 2014; 1842:56-64. [PMID: 24161539 PMCID: PMC3898479 DOI: 10.1016/j.bbadis.2013.10.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/30/2013] [Accepted: 10/17/2013] [Indexed: 11/24/2022]
Abstract
Mitochondrial aminoacyl-tRNA synthetases (aaRSs) are essential enzymes in protein synthesis since they charge tRNAs with their cognate amino acids. Mutations in the genes encoding mitochondrial aaRSs have been associated with a wide spectrum of human mitochondrial diseases. Here we report the identification of pathogenic mutations (a partial genomic deletion and a highly conserved p. Asp325Tyr missense variant) in FARS2, the gene encoding mitochondrial phenylalanyl-tRNA synthetase, in a patient with early-onset epilepsy and isolated complex IV deficiency in muscle. The biochemical defect was expressed in myoblasts but not in fibroblasts and associated with decreased steady state levels of COXI and COXII protein and reduced steady state levels of the mt-tRNA(Phe) transcript. Functional analysis of the recombinant mutant p. Asp325Tyr FARS2 protein showed an inability to bind ATP and consequently undetectable aminoacylation activity using either bacterial tRNA or human mt-tRNA(Phe) as substrates. Lentiviral transduction of cells with wildtype FARS2 restored complex IV protein levels, confirming that the p.Asp325Tyr mutation is pathogenic, causing respiratory chain deficiency and neurological deficits on account of defective aminoacylation of mt-tRNA(Phe).
Collapse
Affiliation(s)
- Abdulraheem Almalki
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Charlotte L. Alston
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Alasdair Parker
- Child Development Centre, Addenbrooke's Hospital, Cambridge, UK
| | - Ingrid Simonic
- Medical Genetics Laboratories, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sarju G. Mehta
- Department of Medical Genetics, Addenbrookes Hospital, Cambridge, UK
| | - Langping He
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Mojgan Reza
- Biobank, Institute for Genetic Medicine, Newcastle University, International Centre for Life, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK
| | - Jorge M.A. Oliveira
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Robert N. Lightowlers
- The Wellcome Trust Centre for Mitochondrial Research, Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Robert McFarland
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Robert W. Taylor
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Zofia M.A. Chrzanowska-Lightowlers
- Wellcome Trust Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| |
Collapse
|
32
|
Luo S, Reza M, Hoffmann R, Skerka C, Verschoor A, Zipfel P. Glycerol-3-phosphate dehydrogenase 2 is a novel Candida albicans complement inhibitor. Mol Immunol 2013. [DOI: 10.1016/j.molimm.2013.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
33
|
Reza M, Laval S, Counsell J, Muntoni F, Morgan J, Lochmuller H. P.20.1 Optimised dystrophin mini-constructs for gene delivery. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
34
|
Spendiff S, Reza M, Murphy JL, Gorman G, Blakely EL, Taylor RW, Horvath R, Campbell G, Newman J, Lochmüller H, Turnbull DM. Mitochondrial DNA deletions in muscle satellite cells: implications for therapies. Hum Mol Genet 2013; 22:4739-47. [PMID: 23847047 PMCID: PMC3820134 DOI: 10.1093/hmg/ddt327] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Progressive myopathy is a major clinical feature of patients with mitochondrial DNA (mtDNA) disease. There is limited treatment available for these patients although exercise and other approaches to activate muscle stem cells (satellite cells) have been proposed. The majority of mtDNA defects are heteroplasmic (a mixture of mutated and wild-type mtDNA present within the muscle) with high levels of mutated mtDNA and low levels of wild-type mtDNA associated with more severe disease. The culture of satellite cell-derived myoblasts often reveals no evidence of the original mtDNA mutation although it is not known if this is lost by selection or simply not present in these cells. We have explored if the mtDNA mutation is present in the satellite cells in one of the commonest genotypes associated with mitochondrial myopathies (patients with single, large-scale mtDNA deletions). Analysis of satellite cells from eight patients showed that the level of mtDNA mutation in the satellite cells is the same as in the mature muscle but is most often subsequently lost during culture. We show that there are two periods of selection against the mutated form, one early on possibly during satellite cell activation and the other during the rapid replication phase of myoblast culture. Our data suggest that the mutations are also lost during rapid replication in vivo, implying that strategies to activate satellite cells remain a viable treatment for mitochondrial myopathies in specific patient groups.
Collapse
Affiliation(s)
- Sally Spendiff
- Wellcome Trust Centre for Mitochondrial Research, The Medical School, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Reza M, Gupta AS. AN ADHESIVE PROBLEM FOR A POWER-LAW FLUID. CHEM ENG COMMUN 2012. [DOI: 10.1080/00986445.2012.655811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
36
|
Ritso M, Dick E, Reza M, Laval S, Bushby K, Straub V, Denning C, Lochmüller H. P13 Assessing viral rescue therapies for Duchenne muscular dystrophy. Neuromuscul Disord 2012. [DOI: 10.1016/s0960-8966(12)70021-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
37
|
Ritso M, Dick E, Reza M, Laval S, Bushby K, Straub V, Denning C, Lochmuller H. P4.36 Develoment of pluripotent stem celss as vectors for viral gene therapy. Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
Reza M, Laval S, Morgan J, Muntoni F, Bushby K, Straub V, Lochmüller H. P08 Optimal dystrophin mini-construct for gene delivery to skeletal muscle. Neuromuscul Disord 2011. [DOI: 10.1016/s0960-8966(11)70027-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
39
|
Spendiff S, Horvath R, Lochmüller H, Reza M, Murphy J, Taylor R, Turnbull D. P57 Mitochondrial DNA mutations in satellite cells. Neuromuscul Disord 2011. [DOI: 10.1016/s0960-8966(11)70076-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
40
|
Dick E, Matsa E, Bispham J, Reza M, Guglieri M, Staniforth A, Watson S, Kumari R, Lochmüller H, Young L, Darling D, Denning C. Two new protocols to enhance the production and isolation of human induced pluripotent stem cell lines. Stem Cell Res 2010; 6:158-67. [PMID: 21095172 DOI: 10.1016/j.scr.2010.10.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Revised: 10/12/2010] [Accepted: 10/14/2010] [Indexed: 12/31/2022] Open
Abstract
There are two critical stages in the retroviral reprogramming of somatic cells to produce human induced pluripotent stem cell (hiPSC) lines. One is the production of high titer virus required to reprogram somatic cells; the other is identification of true hiPSC colonies from heterogeneous cell populations, and their isolation and expansion to generate a sustainable, pluripotent stem cell line. Here we describe simple, time-saving methods to address the current difficulties at these two critical junctures. First, we have developed a method to increase the number of infectious viral units 600-fold. Second, we have developed a TRA-1-81-based positive selection column method for isolating "true" hiPSCs from the heterogeneous cell populations, which overcomes the labor-intensive and highly subjective method of manual selection of hiPSC colonies. We have used these techniques to produce 8 hiPSC lines from human fibroblasts and we believe that they are of considerable utility to researchers in the hiPSC field.
Collapse
Affiliation(s)
- Emily Dick
- Wolfson Centre for Stem Cells, Tissue Engineering & Modelling, Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
Barrett's esophagus, the management of which remains controversial, is the precursor condition to esophageal adenocarcinoma. A number of endoscopic treatments have been designed as an alternative to surgical resection for patients with high-grade dysplasia. One of these, photodynamic therapy, involves the light activation of a photosensitizer that causes local tissue destruction via oxidation reactions. The present work reviews the effectiveness, safety, and cost-effectiveness of this treatment. A systematic review of the literature recorded in the Medline, Embase, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Database, and the National Health Service Economic Evaluation Database was undertaken. Articles reporting randomized clinical trials of photodynamic therapy for the treatment of Barrett's esophagus, and economic assessments of the procedure, were selected. The quality of the articles was checked. Twelve articles were included in this review: eight randomized, controlled clinical trials and four economic assessments. The clinical trials suffered from methodological limitations, but the economic assessments were considered to be good quality. Photodynamic therapy is effective for the ablation of dysplasia in Barrett's esophagus, although the frequency of adverse events is quite high. The procedure is presented as a cost-effective alternative to intense endoscopic monitoring and esophagectomy. However, the evidence regarding its effectiveness in reducing the number of patients who go on to develop cancer is only incipient. Rigorous, controlled studies with longer follow-up times, in which photodynamic therapy is compared with surgical resection and other endoscopic techniques, are needed.
Collapse
Affiliation(s)
- A Sánchez
- Health Technology Assessment Unit (UETS), Laín Entralgo Agency, Madrid, Spain
| | | | | | | |
Collapse
|
42
|
Reza M, Maeso S, Blasco JA, Andradas E. Meta-analysis of observational studies on the safety and effectiveness of robotic gynaecological surgery. Br J Surg 2010; 97:1772-83. [PMID: 20949554 DOI: 10.1002/bjs.7269] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abstract
Background
The safety and effectiveness of robotic, open and conventional laparoscopic surgery in gynaecological surgery was assessed in a systematic review of the literature. This will enable the general surgical community to understand where robotic surgery stands in gynaecology.
Methods
A search was made for previous systematic reviews in the Abstracts of Reviews of Effects, Health Technology Assessment, Cochrane Collaboration and Hayes Inc. databases. In addition, the MEDLINE, Embase and CINAHL databases were searched for primary studies. The quality of studies was assessed and meta-analyses were performed.
Results
Twenty-two studies were included in the review. All were controlled but none was randomized. The majority were retrospective with historical controls. The settings in which robotic surgery was used included hysterectomy for malignant and benign disease, myomectomy, sacrocolpopexy, fallopian tube reanastomosis and adnexectomy. Robotic surgery achieved a shorter hospital stay and less blood loss than open surgery. Compared with conventional laparoscopic surgery, robotic surgery achieved reduced blood loss and fewer conversions during the staging of endometrial cancer. No clinically significant differences were recorded for the other indications tested.
Conclusion
The available evidence shows that robotic surgery offers limited advantages with respect to short-term outcomes. However, the clinical outcomes should be interpreted with caution owing to the methodological quality of the studies.
Collapse
Affiliation(s)
- M Reza
- Health Technology Assessment Unit, Laín Entralgo Agency, C/Gran Vía 27, 7°, Madrid 28013, Spain
| | - S Maeso
- Health Technology Assessment Unit, Laín Entralgo Agency, C/Gran Vía 27, 7°, Madrid 28013, Spain
| | - J A Blasco
- Health Technology Assessment Unit, Laín Entralgo Agency, C/Gran Vía 27, 7°, Madrid 28013, Spain
| | - E Andradas
- Health Technology Assessment Unit, Laín Entralgo Agency, C/Gran Vía 27, 7°, Madrid 28013, Spain
| |
Collapse
|
43
|
Spendiff S, Horvath R, Murphy J, Taylor R, Reza M, Lochmüller H, Turnbull D. P74 Finding the missing gap – mitochondrial DNA deletions in muscle stem cells. Neuromuscul Disord 2010. [DOI: 10.1016/s0960-8966(10)70089-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
44
|
Charlton R, Henderson M, Richards J, Hicks D, Reza M, Straub V, Lochmüller H, Bushby K, Barresi R. EM.P.4.08 Chain-specific antibody testing of collagen VI: An additional pre-screening strategy for the diagnosis of Bethlem myopathy. Neuromuscul Disord 2009. [DOI: 10.1016/j.nmd.2009.06.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
45
|
Azim T, Rahman M, Alam MS, Chowdhury IA, Khan R, Reza M, Rahman M, Chowdhury EI, Hanifuddin M, Rahman ASMM. Bangladesh moves from being a low-prevalence nation for HIV to one with a concentrated epidemic in injecting drug users. Int J STD AIDS 2008; 19:327-31. [PMID: 18482963 DOI: 10.1258/ijsa.2007.007269] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bangladesh has been conducting annual serological surveillance for HIV and syphilis since 1998 among most at-risk populations including sex workers, males having sex with males, injecting drug users (IDUs) and heroin smokers. During the seventh round conducted between January and June 2006, 10,368 people were sampled and the overall HIV prevalence was 0.9%. The highest HIV rate was recorded in male IDUs from the capital city Dhaka (7%), and the rates have risen significantly over the rounds (P < 0.001). In Dhaka, most of the HIV-positive IDUs (10.5%) were localized in one neighbourhood, while in the remaining neighbourhoods 1% were positive (P < 0.001). In all other groups, HIV prevalence was <1%. Active syphilis rates were highest in female IDUs (9.9%) followed by female street-based sex workers (8.6%). However, rates in female sex workers in Dhaka declined significantly over the years (P < 0.001). Bangladesh has to act urgently to prevent escalation of the epidemic.
Collapse
Affiliation(s)
- T Azim
- International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR, B) Mohakhali, Dhaka, Bangladesh.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Hossain M, Rahman S, Alam A, Qamruzzaman C, Hossen M, Hai M, Reza M. Implication of human epidermal growth factor receptor-2 (HER-2) over expression in treatment of breast cancer in developing countries—report on 250 cases from Bangladesh. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.14139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
14139 Background: Carcinoma breast is the second most common malignancy in Bangladeshi women. Though HER-2 over expression has profound effect on prognosis of breast cancer, no published data is available about this among Bangladeshi patients. Our aim in this study was to see HER-2 status in Bangladeshi patients, and their relation with other prognostic parameters. Implication of this molecular marker in management of breast cancer in poor country like ours remains controversial, keeping in mind the exorbitantly high cost of Trastuzumab. Methods: This prospective study was conducted in the department of Oncology at Bangladesh Medical College Hospital, National Institute of Cancer Research and Hospital and Ahsania Mission Cancer Hospital Bangladesh, from January 2003 to December 2006. Total 250 women with breast carcinoma were enrolled; biopsy specimens were tested by immunohistochemistry to detect HER-2 status. For recommending treatment with Trastuzumab, patients with 3+ immunohistochemistry results were considered HER-2 positive. Fluorescent In Situ Hybridization (FISH) testing facility was not available. These findings were correlated with age, ER/PR and nodal status. The practical application of marker in terms of use of Trastuzumab was analyzed. Results: Age of patients ranged from 19.75 years to 72 years, mean age was 49.75 years. HER-2 was over expressed in 38.4 % (96) cases and their mean age was 42.92 years compared to 47.61 years in HER-2 negative cases. HER-2 positive cases tended to have higher rates of lymph node metastases (44 out of 96) compared to HER-2 negative (46 out of 154) cases (45.8 % vs 29.87 %). ER/PR was positive in 64 % cases. HER-2 over expression was inversely related to ER / PR expression. Of the HER-2 positive cases, 11.45 % (11 out of 96) afforded treatment with Trastuzumab. Conclusions: HER-2 is over expressed in almost 38 % of breast carcinoma patients in Bangladesh. This expression is associated with relatively young age, lymph node metastasis and lack of ER / PR expression. Only 11.45 % of patients with HER-2 over expression afforded Trastuzumab though 38 % of cases over expressed HER-2. No significant financial relationships to disclose.
Collapse
Affiliation(s)
- M. Hossain
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - S. Rahman
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - A. Alam
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - C. Qamruzzaman
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - M. Hossen
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - M. Hai
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| | - M. Reza
- Bangladesh Medical College Hospital, Dhaka, Bangladesh; National Instititute of Cancer Research & Hospital, Dhaka, Bangladesh; Ahsania Mission Cancer Institute, Dhaka, Bangladesh
| |
Collapse
|
47
|
Gómez-León N, Pinilla I, Rodríguez-Vigil B, Hernández D, Reza M, Madero R. [Integrated PET/CT scanner in oncology applications: a radiologic perspective]. Radiologia 2007; 49:29-36. [PMID: 17397618 DOI: 10.1016/s0033-8338(07)73713-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To describe our experience with an integrated PET/CT system in the clinical applications in Oncology. MATERIAL AND METHODS An integrated PET/CT scanner is an in-line system combining a full-ring detector PET and a multidetector row helical CT in one machine. This is a multidisciplinary technique involving a nuclear medicine physician, a radiologist, a radiopharmacologist, and a physicist, with distinct tasks and working together. The clinical indications for PET scans are determined by the National Health System, which in Madrid is coordinated by Agencia Laín Entralgo, and are performed by a nuclear medicine physician with the help of a radiologist for CT interpretation. The combined PET/CT scans are supervised and interpreted by both a nuclear medicine physician and a radiologist. RESULTS Between September 2003 and August 2005, a total of 2459 examinations were performed at our institution: 2200 were PET scans with low-dose noncontrast-CT for attenuation correction (clinical indications approved by NHS), and 259 were combined PET/CT scans with full-diagnostic enhanced-CT (in the setting of research programmes). The overall distribution of clinical indications for the 2459 examinations were: lung cancer 14.7%, solitary lung nodule characterization 7%, lymphoma 23.5%, colon cancer 18.5%, gastric cancer 1.9%, brain tumors 2.6%, head-neck tumors 5.5%, thyroid cancer 5%, breast cancer 4%, unknown origin cancer 4.3%, epilepsy 1.4%, others 11.6%. CONCLUSION In our experience, the integrated PET/CT system has advantages over the stand-alone PET and/or CT. However, more studies, as the ongoing research programmes at our facility are needed for the diagnostic validation of this technique.
Collapse
Affiliation(s)
- N Gómez-León
- Servicio de Radiodiagnóstico, Hospital Universitario La Paz, Universidad Autónoma Madrid, Madrid, España.
| | | | | | | | | | | |
Collapse
|
48
|
Abstract
The effects of insulin therapy on patient well-being, treatment satisfaction and mood, and on carer strain were studied in 30 elderly Type 2 diabetic patients (age 73 +/- 7 (SD) yr) in poor glycaemic control on tablet therapy. A comparison group of ten poorly controlled patients who remained on oral agents was also studied. After 4 weeks of insulin treatment, there were significant improvements in mental health, role-emotional, role-physical (all P<0.05) and vitality (P<0.01) domains of the short form health survey (SF-36), and also in the diabetes treatment and satisfaction questionnaire (DTSQ) and geriatric depression scale (both P<0.01) compared to baseline. After 12 weeks, the improvements in mental health, social functioning and vitality (P<0.01 for all domains), and in the DTSQ were sustained. Carer strain was lower at 4 weeks. No changes in outcomes were seen in the comparison group. In selected elderly Type 2 diabetic patients, insulin treatment is associated with significant improvements in well-being, treatment satisfaction and mood, even without significant improvements in glycaemic control and without increase in carer strain. The SF-36 and DTSQ are sensitive to the benefits of the changes in the treatment for these patients.
Collapse
Affiliation(s)
- M Reza
- Diabetes Centre, Royal Hallamshire Hospital, Sheffield, South Yorkshire, UK
| | | | | | | | | |
Collapse
|
49
|
Taylor C, Towse K, Reza M, Ward JD, Hendra TJ. Transferring elderly type 2 patients to insulin: a prospective study of diabetes nurses', physicians' and patients' perceptions. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/pdi.326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
50
|
Abstract
A 7-month-old immunocompetent child was brought to the emergency department with fever and diarrhea. Blood and stool cultures grew Campylobacter species. Campylobacter bacteremia resolved without treatment.
Collapse
Affiliation(s)
- A J Smally
- Department of Surgery, University of Connecticut School of Medicine, Hartford Hospital, USA
| | | | | |
Collapse
|