Expression profiling reveals metabolic and structural components of extraocular muscles
The extraocular muscles (EOM) are anatomically and physiologically distinct from other skeletal muscles. EOM are preferentially affected in mitochondrial myopathies, but spared in Duchenne's muscular dystrophy. The anatomical and pathophysiological properties of EOM have been attributed to thei...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1826261410975318016 |
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| author | Fischer, MD Gorospe, JR Felder, E Bogdanovich, S Pedrosa-Domellöf, F Ahima, R Rubinstein, N Hoffman, E Khurana, T |
| author_facet | Fischer, MD Gorospe, JR Felder, E Bogdanovich, S Pedrosa-Domellöf, F Ahima, R Rubinstein, N Hoffman, E Khurana, T |
| author_sort | Fischer, MD |
| collection | OXFORD |
| description | The extraocular muscles (EOM) are anatomically and physiologically distinct from other skeletal muscles. EOM are preferentially affected in mitochondrial myopathies, but spared in Duchenne's muscular dystrophy. The anatomical and pathophysiological properties of EOM have been attributed to their unique molecular makeup: an allotype. We used expression profiling to define molecular features of the EOM allotype. We found 346 differentially expressed genes in rat EOM compared with tibialis anterior, based on a twofold difference cutoff. Genes required for efficient, fatigue-resistant, oxidative metabolism were increased in EOM, whereas genes for glycogen metabolism were decreased. EOM also showed increased expression of genes related to structural components of EOM such as vessels, nerves, mitochondria, and neuromuscular junctions. Additionally, genes related to specialized functional roles of EOM such as the embryonic and EOM-specific myosin heavy chains and genes for muscle growth, development, and/or regeneration were increased. The EOM expression profile was validated using biochemical, structural, and molecular methods. Characterization of the EOM expression profile begins to define gene transcription patterns associated with the unique anatomical, metabolic, and pathophysiological properties of EOM. |
| first_indexed | 2024-03-06T19:21:00Z |
| format | Journal article |
| id | oxford-uuid:1a16012f-ddeb-49e7-a917-3efbbbda7bd3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:21:00Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:1a16012f-ddeb-49e7-a917-3efbbbda7bd32022-03-26T10:52:46ZExpression profiling reveals metabolic and structural components of extraocular musclesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1a16012f-ddeb-49e7-a917-3efbbbda7bd3EnglishSymplectic Elements at Oxford2002Fischer, MDGorospe, JRFelder, EBogdanovich, SPedrosa-Domellöf, FAhima, RRubinstein, NHoffman, EKhurana, TThe extraocular muscles (EOM) are anatomically and physiologically distinct from other skeletal muscles. EOM are preferentially affected in mitochondrial myopathies, but spared in Duchenne's muscular dystrophy. The anatomical and pathophysiological properties of EOM have been attributed to their unique molecular makeup: an allotype. We used expression profiling to define molecular features of the EOM allotype. We found 346 differentially expressed genes in rat EOM compared with tibialis anterior, based on a twofold difference cutoff. Genes required for efficient, fatigue-resistant, oxidative metabolism were increased in EOM, whereas genes for glycogen metabolism were decreased. EOM also showed increased expression of genes related to structural components of EOM such as vessels, nerves, mitochondria, and neuromuscular junctions. Additionally, genes related to specialized functional roles of EOM such as the embryonic and EOM-specific myosin heavy chains and genes for muscle growth, development, and/or regeneration were increased. The EOM expression profile was validated using biochemical, structural, and molecular methods. Characterization of the EOM expression profile begins to define gene transcription patterns associated with the unique anatomical, metabolic, and pathophysiological properties of EOM. |
| spellingShingle | Fischer, MD Gorospe, JR Felder, E Bogdanovich, S Pedrosa-Domellöf, F Ahima, R Rubinstein, N Hoffman, E Khurana, T Expression profiling reveals metabolic and structural components of extraocular muscles |
| title | Expression profiling reveals metabolic and structural components of extraocular muscles |
| title_full | Expression profiling reveals metabolic and structural components of extraocular muscles |
| title_fullStr | Expression profiling reveals metabolic and structural components of extraocular muscles |
| title_full_unstemmed | Expression profiling reveals metabolic and structural components of extraocular muscles |
| title_short | Expression profiling reveals metabolic and structural components of extraocular muscles |
| title_sort | expression profiling reveals metabolic and structural components of extraocular muscles |
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