Molecular and Genetic Studies of Congenital Myopathies

Официальное название

Molecular Analysis of Neuromuscular Disease

Обзор

In the Congenital Myopathy Research Program at Boston Children's Hospital and Harvard Medical School, the researchers are studying the congenital myopathies (neuromuscular diseases present from birth), including central core disease, centronuclear/myotubular myopathy, congenital fiber type disproportion, multiminicore disease, nemaline myopathy, rigid spine muscular dystrophy, SELENON (SEPN1), RYR1 myopathy, ADSS1 (ADSSL) Myopathy and undefined congenital myopathies. The primary goal of the research is to better understand the genes and proteins (gene products) involved in muscle functioning and disease. The researchers hope that our studies will allow for improved diagnosis and treatment of individuals with congenital myopathies in the future. For more information, visit the Laboratory Website at www.childrenshospital.org/research/beggs

Подробное описание

The Congenital Myopathy Research Program consists of a group of scientists and healthcare providers all working to better understand the congenital myopathies. We are taking two approaches to reach our research goals. The first involves identifying and describing new genes and proteins involved in the skeletal muscles that allow our bodies to move. Simultaneously, studies are underway to identify genetic changes (mutations) that cause human neuromuscular disease. Thus, our second approach is to identify mutations, learn how they are inherited in families, and understand how they lead to weakness in individuals with neuromuscular disease. These approaches allow correlation of our basic muscle biology findings with our studies on muscle tissue of affected individuals.

Our research would not be possible without the generous participation of individuals and families with congenital myopathies. Participation in our studies is free of charge. Travel to Boston is not required, and we welcome the participation of individuals from around the world.

We appreciate the participation of all individuals with a congenital myopathy, as well as their first-degree relatives. Participants with a congenital myopathy are asked to donate medical records, a blood or saliva sample, and a muscle tissue sample (if available). Participating relatives are asked to donate a blood sample. The blood/saliva sample is used to acquire DNA (genetic material) which can be used to identify genetic changes and to study how a disease is inherited in a family. The medical records are employed to understand a participant's symptoms. The muscle tissue is used to better understand the disease at the muscular level by studying the gene expression and protein levels in individuals with congenital myopathies.

For more information, visit the Laboratory Website at www.childrenshospital.org/research/beggs.

Первичные конечные точки

• Identification of Neuromuscular Disease Genes [Срок оценки: The time frame for disease gene discovery is unpredictable and may range from several days to several decades.]

Вторичные конечные точки (1)

• Characterization of Clinical Features of Congenital Myopathies [Срок оценки: The time frame for disease classification and genotype-phenotype correlation is unpredictable and may range from several days to several decades.]

Критерии участия

Критерии включения

• Individuals with a clinical or suspected diagnosis of a congenital myopathy and their family members

Критерии исключения

• No specific exclusion criteria. Our studies do not include myotonia congenita or related conditions.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Только случаи

Центры проведения

США · 1 центр

• Genetics Division, Boston Children's Hospital — Boston

Публикации

• Pierson CR, Tomczak K, Agrawal P, Moghadaszadeh B, Beggs AH. X-linked myotubular and centronuclear myopathies. J Neuropathol Exp Neurol. 2005 Jul;64(7):555-64. doi: 10.1097/01.jnen.0000171653.17213.2e. PMID 16042307
• Agrawal PB, Strickland CD, Midgett C, Morales A, Newburger DE, Poulos MA, Tomczak KK, Ryan MM, Iannaccone ST, Crawford TO, Laing NG, Beggs AH. Heterogeneity of nemaline myopathy cases with skeletal muscle alpha-actin gene mutations. Ann Neurol. 2004 Jul;56(1):86-96. doi: 10.1002/ana.20157. PMID 15236405
• Ryan MM, Ilkovski B, Strickland CD, Schnell C, Sanoudou D, Midgett C, Houston R, Muirhead D, Dennett X, Shield LK, De Girolami U, Iannaccone ST, Laing NG, North KN, Beggs AH. Clinical course correlates poorly with muscle pathology in nemaline myopathy. Neurology. 2003 Feb 25;60(4):665-73. doi: 10.1212/01.wnl.0000046585.81304.bc. PMID 12601110
• Ryan MM, Schnell C, Strickland CD, Shield LK, Morgan G, Iannaccone ST, Laing NG, Beggs AH, North KN. Nemaline myopathy: a clinical study of 143 cases. Ann Neurol. 2001 Sep;50(3):312-20. doi: 10.1002/ana.1080. PMID 11558787
• Sanoudou D, Frieden LA, Haslett JN, Kho AT, Greenberg SA, Kohane IS, Kunkel LM, Beggs AH. Molecular classification of nemaline myopathies: "nontyping" specimens exhibit unique patterns of gene expression. Neurobiol Dis. 2004 Apr;15(3):590-600. doi: 10.1016/j.nbd.2003.12.013. PMID 15056467
• Sanoudou D, Haslett JN, Kho AT, Guo S, Gazda HT, Greenberg SA, Lidov HG, Kohane IS, Kunkel LM, Beggs AH. Expression profiling reveals altered satellite cell numbers and glycolytic enzyme transcription in nemaline myopathy muscle. Proc Natl Acad Sci U S A. 2003 Apr 15;100(8):4666-71. doi: 10.1073/pnas.0330960100. Epub 2003 Apr 3. PMID 12677001
• Wattanasirichaigoon D, Swoboda KJ, Takada F, Tong HQ, Lip V, Iannaccone ST, Wallgren-Pettersson C, Laing NG, Beggs AH. Mutations of the slow muscle alpha-tropomyosin gene, TPM3, are a rare cause of nemaline myopathy. Neurology. 2002 Aug 27;59(4):613-7. doi: 10.1212/wnl.59.4.613. PMID 12196661
• Nowak KJ, Wattanasirichaigoon D, Goebel HH, Wilce M, Pelin K, Donner K, Jacob RL, Hubner C, Oexle K, Anderson JR, Verity CM, North KN, Iannaccone ST, Muller CR, Nurnberg P, Muntoni F, Sewry C, Hughes I, Sutphen R, Lacson AG, Swoboda KJ, Vigneron J, Wallgren-Pettersson C, Beggs AH, Laing NG. Mutations in the skeletal muscle alpha-actin gene in patients with actin myopathy and nemaline myopathy. Nat PMID 10508519

Идентификаторы

NCT: NCT00272883 · 03-08-128R · AR44345 · NS40828

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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