Microinjection of Recombinant RCAS(A) Retrovirus into Embryonic Chicken Lens

Francisca M. Acosta, Bo Ma, Sumin Gu, Jean X. Jiang

Research output: Contribution to journalArticlepeer-review


Embryonic chicken (Gallus domesticus) is a well-established animal model for the study of lens development and physiology, given its high degree of similarity with the human lens. RCAS(A) is a replication-competent chicken retrovirus that infects dividing cells, which serves as a powerful tool to study the in situ expression and function of wild-type and mutant proteins during lens development by microinjection into the empty lumen of lens vesicle at early developmental stages, restricting its action to surrounding proliferating lens cells. Compared to other approaches, such as transgenic models and ex vivo cultures, the use of an RCAS(A) replication-competent avian retrovirus provides a highly effective, rapid, and customizable system to express exogenous proteins in chick embryos. Specifically, targeted gene transfer can be confined to proliferative lens fiber cells without the need for tissue-specific promoters. In this article, we will briefly overview the steps needed for recombinant retrovirus RCAS(A) preparation, provide a detailed, comprehensive overview of the microinjection procedure, and provide sample results of the technique.

Original languageEnglish (US)
Article numbere65727
JournalJournal of Visualized Experiments
Issue number199
StatePublished - Sep 2023

ASJC Scopus subject areas

  • General Neuroscience
  • General Chemical Engineering
  • General Biochemistry, Genetics and Molecular Biology
  • General Immunology and Microbiology


Dive into the research topics of 'Microinjection of Recombinant RCAS(A) Retrovirus into Embryonic Chicken Lens'. Together they form a unique fingerprint.

Cite this