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Related Experiment Videos

Mouse models for Usher syndrome 1B.

Concepcion Lillo1, Junko Kitamoto, Xinran Liu

  • 1Department of Pharmacology, UCSD School of Medicine, La Jolla, CA 92093-0983, USA.

Advances in Experimental Medicine and Biology
|June 8, 2004
PubMed
Summary
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Shaker1 mice, models for Usher syndrome type 1B (USH1B), show limited photoreceptor cell loss. These mice are valuable for gene therapy research due to other observed mutant phenotypes.

Area of Science:

  • Genetics
  • Ophthalmology
  • Molecular Biology

Background:

  • Usher syndrome type 1B (USH1B) is a genetic disorder characterized by hearing loss and vision impairment.
  • Mutations in the MYO7A gene are a common cause of USH1B.
  • Shaker1 mice are a widely used animal model for studying USH1B.

Purpose of the Study:

  • To evaluate photoreceptor cell degeneration in various shaker1 mouse alleles.
  • To determine the utility of shaker1 mice as a model for USH1B gene therapy.

Main Methods:

  • Analysis of photoreceptor cell degeneration in different shaker1 mouse alleles.
  • Assessment of mutant phenotypes in shaker1 mice.

Main Results:

  • Photoreceptor cell degeneration was not observed in most shaker1 alleles.

Related Experiment Videos

  • A minor but significant loss of photoreceptor cells was noted in Myo7a(4626SB/4626SB) mice homozygous for Cdh23v.
  • The study suggests that combining mutations in USH1 genes might accelerate photoreceptor loss.

    • Conclusions:

    • Shaker1 mice exhibit phenotypes beyond photoreceptor cell death, making them suitable models for USH1B gene therapy research.
    • Further investigation into the genetic background of shaker1 mice could reveal more about photoreceptor degeneration mechanisms.