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Phenotypes of Myopa...
Phenotypes of Myopathy-Related Beta-Tropomyosin Mutants in Human and Mouse Tissue Cultures
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- Abdul-Hussein, Saba (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för patologi,Institute of Biomedicine, Department of Pathology,Department of Pathology, University of Gothenburg, Gothenburg, Sweden
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- Rahl, Karin (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för patologi,Institute of Biomedicine, Department of Pathology,Department of Pathology, University of Gothenburg, Gothenburg, Sweden
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- Moslemi, Ali-Reza (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för patologi,Institute of Biomedicine, Department of Pathology,Department of Pathology, University of Gothenburg, Gothenburg, Sweden
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- Tajsharghi, Homa, 1968 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för patologi,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Pathology,Institute of Biomedicine, Department of Medical and Clinical Genetics,Department of Pathology, University of Gothenburg, Gothenburg, Sweden / Department of Clinical and Medical Genetics, University of Gothenburg, Gothenburg, Sweden
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(creator_code:org_t)
- 2013-09-10
- 2013
- Engelska.
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Ingår i: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 8:9
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Mutations in TPM2 result in a variety of myopathies characterised by variable clinical and morphological features. We used human and mouse cultured cells to study the effects of beta-TM mutants. The mutants induced a range of phenotypes in human myoblasts, which generally changed upon differentiation to myotubes. Human myotubes transfected with the E41K-beta-TMEGFP mutant showed perinuclear aggregates. The G53ins-beta-TMEGFP mutant tended to accumulate in myoblasts but was incorporated into filamentous structures of myotubes. The K49del-beta-TMEGFP and E122K-beta-TMEGFP mutants induced the formation of rod-like structures in human cells. The N202K-beta-TMEGFP mutant failed to integrate into thin filaments and formed accumulations in myotubes. The accumulation of mutant beta-TMEGFP in the perinuclear and peripheral areas of the cells was the striking feature in C2C12. We demonstrated that human tissue culture is a suitable system for studying the early stages of altered myofibrilogenesis and morphological changes linked to myopathy-related beta-TM mutants. In addition, the histopathological phenotype associated with expression of the various mutant proteins depends on the cell type and varies with the maturation of the muscle cell. Further, the phenotype is a combinatorial effect of the specific amino acid change and the temporal expression of the mutant protein.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Nyckelord
- NEMALINE MYOPATHY
- SKELETAL-MUSCLE
- CAP DISEASE
- IMMUNOELECTRON
- MICROSCOPY
- DISTAL ARTHROGRYPOSIS
- CONGENITAL MYOPATHY
- ISOFORM
- COMPOSITION
- ACTIN CYTOSKELETON
- RARE CAUSE
- GENE TPM2
- Medical sciences
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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