Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice
Abstract Muscle disuse in the hindlimb unloaded (HU) mice causes significant atrophy and weakness. However, the cellular and molecular mechanisms driving disuse-muscle atrophy remain elusive. We investigated the potential contribution of proteins dysregulation by sarcoplasmic reticulum (SR), a condi...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-07-01
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| Series: | npj Microgravity |
| Online Access: | https://doi.org/10.1038/s41526-022-00211-w |
| _version_ | 1797642297273221120 |
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| author | Amir Ali Khan Muhammad Tehsil Gul Asima Karim Anu Ranade Muhammad Azeem Zeinab Ibrahim Gopika Ramachandran Vidhya A. Nair Firdos Ahmad Adel Elmoselhi Rizwan Qaisar |
| author_facet | Amir Ali Khan Muhammad Tehsil Gul Asima Karim Anu Ranade Muhammad Azeem Zeinab Ibrahim Gopika Ramachandran Vidhya A. Nair Firdos Ahmad Adel Elmoselhi Rizwan Qaisar |
| author_sort | Amir Ali Khan |
| collection | DOAJ |
| description | Abstract Muscle disuse in the hindlimb unloaded (HU) mice causes significant atrophy and weakness. However, the cellular and molecular mechanisms driving disuse-muscle atrophy remain elusive. We investigated the potential contribution of proteins dysregulation by sarcoplasmic reticulum (SR), a condition called SR stress, to muscle loss during HU. Male, c57BL/6j mice were assigned to ground-based controls or HU groups treated with vehicle or 4-phenylbutyrate (4-PBA), a potent inhibitor of SR stress, once a day for three weeks. We report that the 4-PBA reduced the SR stress and partly reversed the muscle atrophy and weakness in the HU mice. Transcriptome analysis revealed that several genes were switched on (n = 3688) or differentially expressed (n = 1184) due to HU. GO, and KEGG term analysis revealed alterations in pathways associated with the assembly of cilia and microtubules, extracellular matrix proteins regulation, calcium homeostasis, and immune modulation during HU. The muscle restoration with 4-PBA partly reversed these changes along with differential and unique expression of several genes. The analysis of genes among the two comparisons (HU-v vs. control and HU-t vs. HU-v.) shows 841 genes were overlapped between the two comparisons and they may be regulated by 4-PBA. Altogether, our findings suggest that the pharmacological suppression of SR stress may be an effective strategy to prevent disuse-induced muscle weakness and atrophy. |
| first_indexed | 2024-03-11T13:58:01Z |
| format | Article |
| id | doaj.art-511db5b351f74c0a8378fa12f317c56c |
| institution | Directory Open Access Journal |
| issn | 2373-8065 |
| language | English |
| last_indexed | 2024-03-11T13:58:01Z |
| publishDate | 2022-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Microgravity |
| spelling | doaj.art-511db5b351f74c0a8378fa12f317c56c2023-11-02T05:36:13ZengNature Portfolionpj Microgravity2373-80652022-07-018111010.1038/s41526-022-00211-wMitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded miceAmir Ali Khan0Muhammad Tehsil Gul1Asima Karim2Anu Ranade3Muhammad Azeem4Zeinab Ibrahim5Gopika Ramachandran6Vidhya A. Nair7Firdos Ahmad8Adel Elmoselhi9Rizwan Qaisar10Department of Applied Biology, College of Sciences, University of SharjahDepartment of Applied Biology, College of Sciences, University of SharjahDepartment of Basic Medical Sciences, College of Medicine, University of SharjahDepartment of Basic Medical Sciences, College of Medicine, University of SharjahDepartment of Applied Physics and Astronomy, College of Sciences, University of SharjahCardiovascular research group, Sharjah Institute for Medical Research, University of SharjahCardiovascular research group, Sharjah Institute for Medical Research, University of SharjahCardiovascular research group, Sharjah Institute for Medical Research, University of SharjahDepartment of Basic Medical Sciences, College of Medicine, University of SharjahDepartment of Basic Medical Sciences, College of Medicine, University of SharjahDepartment of Basic Medical Sciences, College of Medicine, University of SharjahAbstract Muscle disuse in the hindlimb unloaded (HU) mice causes significant atrophy and weakness. However, the cellular and molecular mechanisms driving disuse-muscle atrophy remain elusive. We investigated the potential contribution of proteins dysregulation by sarcoplasmic reticulum (SR), a condition called SR stress, to muscle loss during HU. Male, c57BL/6j mice were assigned to ground-based controls or HU groups treated with vehicle or 4-phenylbutyrate (4-PBA), a potent inhibitor of SR stress, once a day for three weeks. We report that the 4-PBA reduced the SR stress and partly reversed the muscle atrophy and weakness in the HU mice. Transcriptome analysis revealed that several genes were switched on (n = 3688) or differentially expressed (n = 1184) due to HU. GO, and KEGG term analysis revealed alterations in pathways associated with the assembly of cilia and microtubules, extracellular matrix proteins regulation, calcium homeostasis, and immune modulation during HU. The muscle restoration with 4-PBA partly reversed these changes along with differential and unique expression of several genes. The analysis of genes among the two comparisons (HU-v vs. control and HU-t vs. HU-v.) shows 841 genes were overlapped between the two comparisons and they may be regulated by 4-PBA. Altogether, our findings suggest that the pharmacological suppression of SR stress may be an effective strategy to prevent disuse-induced muscle weakness and atrophy.https://doi.org/10.1038/s41526-022-00211-w |
| spellingShingle | Amir Ali Khan Muhammad Tehsil Gul Asima Karim Anu Ranade Muhammad Azeem Zeinab Ibrahim Gopika Ramachandran Vidhya A. Nair Firdos Ahmad Adel Elmoselhi Rizwan Qaisar Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice npj Microgravity |
| title | Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice |
| title_full | Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice |
| title_fullStr | Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice |
| title_full_unstemmed | Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice |
| title_short | Mitigating sarcoplasmic reticulum stress limits disuse-induced muscle loss in hindlimb unloaded mice |
| title_sort | mitigating sarcoplasmic reticulum stress limits disuse induced muscle loss in hindlimb unloaded mice |
| url | https://doi.org/10.1038/s41526-022-00211-w |
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