Highly Multiplexed Immunofluorescence Imaging of Mouse Oocytes
摘要
Highly multiplexed immunofluorescence imaging methods advanced our understanding of biology across scales, from tissues down to molecules. By enabling the visualization of tens of proteins in a single sample, highly multiplexed imaging is especially relevant for scarce and challenging biospecimens like mammalian oocytes. However, most methods remain relatively costly and complex to implement. Here, we provide a cost-effective simple protocol, based on iterative indirect immunofluorescence imaging (4i), allowing to capture the distribution and abundance of tens of proteins in a single mouse oocyte. Our approach is adaptable to other mammalian oocytes or analogously large non-adherent cells like the early embryo.