Mammalian refers to something related to or characteristic of mammals, which are warm-blooded vertebrates that have hair or fur and produce milk for their young.
Working with proteins called zinc finger nucleases and TALENs, Zhang attempted to edit the genomes of mammalian cells with a view to engineering them. (vilcek.org)
The use of CRISPR / Cas9 for gene editing has expanded since its adaptation for use in mammalian cells in 2012 - 2013. (blog.addgene.org)
The system can change single RNA nucleotides in mammalian cells in a programmable and precise fashion. (broadinstitute.org)