THE ROLE OF LMNA MUTATIONS IN MYOGENIC DIFFERENTIATION OF PRIMARY SATELLITE CELLS AND C2C12 CELLS
Nuclear lamins form nuclear lamina localized under the inner nuclear membrane. It was previously considered that the nuclear lamina predominantly plays a structural role, however, its involvement have been recently described in the regulatory processes such as chromatin organization and gene transcr...
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| Published in: | T͡S︡itologii͡a Vol. 59; no. 2; p. 117 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English Russian |
| Published: |
Russia (Federation)
2017
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| ISSN: | 0041-3771 |
| Online Access: | Get more information |
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| Summary: | Nuclear lamins form nuclear lamina localized under the inner nuclear membrane. It was previously considered
that the nuclear lamina predominantly plays a structural role, however, its involvement have been recently
described in the regulatory processes such as chromatin organization and gene transcription. It is known that
mutations in the LMNA gene lead to the development of a large number of diseases, laminopathies, which mainly
affect mesenchymal tissue. Nowadays, the mechanisms by which the lamina can regulate cell differentiation
remain incompletely understood. In the present work, we have studied the effect of LMNA gene mutations on
the process of muscle differentiation of primary satellite cells and Ñ2Ñ12 cell line. The genome of satellite cells
and Ñ2Ñ12 cell line was modified by the introduction of lentiviral constructs encoding LMNA G232E associated
with the development of muscular dystrophy Emery—Dreyfus and LMNA R571S associated with the development
of dilated cardiomyopathy. The morphology of the cells was estimated using immunofluorescence, the
expression level of myogenic genes were analyzed by qPCR. We have shown that the analyzed mutations reduce
the ability of cells to differentiate, to fuse and to form myotubes. We have suggested that it is due to enhanced
expression of markers at the early stages and to reduced expression markers at the late stages of myogenesis.
Therefore, mutations in nuclear lamins can influence the process of muscle differentiation. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0041-3771 |