In vitro transcription and micro-injection of Kdm4a mRNA into mouse oocytes

Abstract This experiment describes the in vitro transcription of Kdm4a wildtype and H188A catalytic dead mRNA. This details also its subsequent injection into mouse oocytes followed my IVF to track the impact on embryo development. The procedure is technically challenging and performed by the Transgenic Core Facility at the University of Copenhagen. Oocytes have a poorer survival rate following mRNA inject as against zygotes. However the objective was to demonstrate the earliest stage of intervention to rescue developmental failure of KDM4A maternal zygotic mutant embryos