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Expression of Isl1 during mouse development.

Shaowei Zhuang1, Qingquan Zhang, Tao Zhuang

  • 1Key Laboratory of Arrhythmia, Ministry of Education, East Hospital, Tongji University School of Medicine, Shanghai 200120, China.

Gene Expression Patterns : GEP
|August 3, 2013
PubMed
Summary
This summary is machine-generated.

We developed a new mouse model to track the expression of the Isl1 gene, crucial for embryonic development. This model accurately visualizes Isl1

Keywords:
DevelopmentGene expressionIsl1LIM-homeodomainTransgenic

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Area of Science:

  • Developmental Biology
  • Genetics
  • Molecular Biology

Background:

  • The LIM-homeodomain transcription factor Isl1 is vital for embryonic development, regulating cell proliferation, differentiation, and survival.
  • Understanding Isl1 expression patterns is key to elucidating its developmental roles.

Purpose of the Study:

  • To generate and validate a mouse model for visualizing Islet1 (Isl1) expression during embryogenesis.
  • To provide a tool for detailed analysis of Isl1's contribution to developmental processes.

Main Methods:

  • Generation of an Islet1 nuclear LacZ (nLacZ) knockin mouse line.
  • Analysis of nLacZ expression via X-gal staining.
  • Comparison of nLacZ expression with endogenous Isl1 protein using co-immunostaining.

Main Results:

  • The Isl1 nLacZ knockin mouse line successfully recapitulated endogenous Isl1 protein expression patterns during development.
  • Expression was observed in numerous tissues, including the nervous system, sensory organs, pharyngeal derivatives, cardiovascular system, gastrointestinal system, and hindlimb.
  • Validated the utility of the nLacZ reporter for tracking Isl1 expression.

Conclusions:

  • The Isl1 nLacZ mouse line is a reliable tool for studying Isl1 expression and function in embryonic development.
  • This model facilitates further research into the specific roles of Isl1 in diverse developing tissues and organ systems.