Muscle Fiber Type-Predominant Promoter Activity in Lentiviral-Mediated Transgenic Mouse Muscle
2011

Study of Gene Expression in Mouse Muscle Fibers Using Lentiviral Vectors

Sample size: 17 publication 10 minutes Evidence: moderate

Author Information

Author(s): Suga Tomohiro, Kimura En, Morioka Yuka, Ikawa Masahito, Li Sheng, Uchino Katsuhisa, Uchida Yuji, Yamashita Satoshi, Maeda Yasushi, Chamberlain Jeffrey S., Uchino Makoto

Primary Institution: Kumamoto University

Hypothesis

The activity of the MSCV promoter in skeletal muscle is fiber-type-dependent.

Conclusion

The MSCV promoter shows varying levels of gene expression in different muscle fiber types, with the highest expression in type I and IIA fibers.

Supporting Evidence

  • The MSCV promoter drives strong gene expression in muscle fibers.
  • Type IID/X fibers showed higher expression levels than type IIB fibers.
  • Transgenic mice exhibited fiber type-dependent variations in EGFP expression.

Takeaway

This study looked at how a specific gene promoter works in different types of muscle fibers in mice, finding that some fibers express the gene better than others.

Methodology

Lentiviral vectors were injected into mouse muscles to study gene expression in different muscle fiber types.

Limitations

Variability in transgene expression levels among different mice due to differences in embryo transduction.

Participant Demographics

C57Bl/10 mice and B6D2F1 mouse embryos were used in the study.

Statistical Information

P-Value

p<0.005

Statistical Significance

p<0.005

Digital Object Identifier (DOI)

10.1371/journal.pone.0016908

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