Knock-Down of Cathepsin D Affects the Retinal Pigment Epithelium, Impairs Swim-Bladder Ontogenesis and Causes Premature Death in Zebrafish
2011

Impact of Cathepsin D Knock-Down on Zebrafish Development

Sample size: 300 publication 10 minutes Evidence: high

Author Information

Author(s): Follo Carlo, Ozzano Matteo, Mugoni Vera, Castino Roberta, Santoro Massimo, Isidoro Ciro

Primary Institution: Università del Piemonte Orientale, Novara, Italy

Hypothesis

What are the effects of Cathepsin D knock-down on zebrafish development?

Conclusion

Cathepsin D is crucial for proper organ development and function in zebrafish, affecting the retina and swim bladder.

Supporting Evidence

  • Zebrafish lacking Cathepsin D showed reduced body length and microphtalmia.
  • Rescue experiments confirmed that the lack of Cathepsin D directly caused developmental anomalies.
  • Cathepsin D is essential for the development of the retinal pigment epithelium.

Takeaway

Cathepsin D helps zebrafish grow properly; without it, they have problems like small eyes and no swim bladder.

Methodology

Zebrafish were injected with morpholino oligonucleotides to knock down Cathepsin D, and phenotypic alterations were assessed.

Potential Biases

Potential bias in interpreting phenotypic outcomes based on subjective assessments.

Limitations

The study primarily focuses on early developmental stages and may not capture long-term effects.

Participant Demographics

Zebrafish (Danio rerio) embryos and larvae were used in the study.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1371/journal.pone.0021908

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication