“…Work from several groups provided cellular atlases of the pancreas during mouse development (Stanescu et al , 2017; Byrnes et al , 2018; Scavuzzo et al , 2018), in adult mice (Muraro et al , 2016) and in human fetal and adult pancreas (Liu et al , 2014; Baron et al , 2016; Muraro et al , 2016; Segerstolpe et al , 2016; Wang et al , 2016; Enge et al , 2017; Han et al , 2020). Efforts have also been made to map cellular identity during pancreas development starting from human pluripotent stem cells (Rezania et al , 2014; Hrvatin et al , 2014; Zhu et al , 2016; Han et al , 2020; Hogrebe et al , 2020; Peterson et al , 2020). Taken together, these studies provide an opportunity to better understand the maintenance and establishment of cellular identity among different pancreatic cell types.…”