Defining the Earliest Transcriptional Steps of Chondrogenic Progenitor Specification during the Formation of the Digits in the Embryonic Limb
2011

Understanding How Cartilage Forms in Embryos

Sample size: 40 publication 10 minutes Evidence: moderate

Author Information

Author(s): Lorda-Diez Carlos I., Montero Juan A., Diaz-Mendoza Manuel J., Garcia-Porrero Juan A., Hurle Juan M.

Primary Institution: Universidad de Cantabria, Santander, Spain

Hypothesis

The study aims to identify the transcriptional steps involved in chondrogenic progenitor specification during digit formation in embryos.

Conclusion

The research establishes a temporal hierarchy in the regulation of pro-chondrogenic genes preceding cartilage differentiation.

Supporting Evidence

  • 87.5% of embryos showed digit formation after Tgfβ bead implantation.
  • Three distinct stages of gene expression were identified during cartilage formation.
  • Significant upregulation of Sox9 was observed, indicating its role in cartilage differentiation.

Takeaway

This study looks at how cartilage forms in developing embryos by tracking gene activity over time.

Methodology

The study used an in vivo model with Tgfβ bead implantation in chick embryos to analyze gene expression during chondrogenesis.

Limitations

The study may not fully account for the complexity of chondrogenesis in different contexts or species.

Participant Demographics

Chick embryos at developmental stages 27 to 36 HH.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0024546

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