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Developmental expression patterns of fosl genes in Xenopus tropicalis

Xiao-Fang Guo1, Zhou Zhang1, Li Zheng2

  • 1Key Laboratory of Regenerative Medicine, Ministry of Education, Department of Developmental & Regenerative Biology, Jinan University, Guangzhou, 510632, China.

Gene Expression Patterns : GEP
|May 24, 2019
PubMed

Insights

Fos-like 1 (Fosl1) and Fos-like 2 (Fosl2) gene expression increases during Xenopus embryonic development, with Fosl1 showing higher levels by stage 42. Their distinct spatial expression patterns suggest unique developmental roles.

Area of Science:

  • Developmental Biology
  • Molecular Genetics
  • Gene Expression Analysis

Background:

  • Fos-like antigens (Fosl), including Fosl1 and Fosl2, form the AP-1 complex with Jun proteins, regulating cellular processes like cell cycle.
  • The specific expression patterns of Fosl1 and Fosl2 during embryonic development are not well understood.

Purpose of the Study:

  • To investigate the temporal and spatial expression patterns of fosl1 and fosl2 during Xenopus tropicalis embryonic development.
  • To provide foundational data for future functional studies of these two genes.

Main Methods:

  • Real-time quantitative PCR (RT-qPCR) to analyze gene expression levels over time.
  • Whole-mount in situ hybridization (WISH) to determine the spatial localization of gene expression.

Main Results:

  • Both fosl1 and fosl2 expression increased from embryonic stage 2 to stage 42.
  • At stage 42, fosl1 exhibited significantly higher expression than fosl2.
  • Fosl1 was detected in eyes, branchial arch, notochord, otic vesicle, and liver.
  • Fosl2 showed expression in lung primordium (stages 34-38) and moderate expression in eyes and branchial arch at stage 42.

Conclusions:

  • Fosl1 and fosl2 display distinct temporal and spatial expression profiles during Xenopus embryonic development.
  • These differential expression patterns indicate potentially unique functions for Fosl1 and Fosl2 in embryonic development.
Keywords:
DevelopmentExpressionXenopus tropicalisfosl1fosl2

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