Analysis of 108 human embryos aged 3–7 weeks reveals modes of primary and secondary neurulation, regulation of body elongation, somite formation rate, and common occurrence of a split neural tube.

Pituitary organoids help identify NFKB2 as a new actor during pituitary development, and mutations of this gene as the cause for pituitary deficit observed in patients with DAVID syndrome.

ICAM-1 engagement controls hepatic cell polarity, but this receptor can also signal without prior leukocyte interaction, thanks to its confinement into apical, microvilli-enriched, bile-canalicular domains and its actin connector EBP50.

Live imaging, transcriptional profiling and mouse models demonstrated that the mesenchyme controls the growth pace but not the mode of branching of the mammary epithelium and unveiled a unique function for Igf1/Igfr1 in embryonic development mammary gland.

Chimeric RNAs are widely distributed spatiotemporally during human retinal development and have important regulatory functions, such as silencing of CTNNBIP1-CLSTN1 biasing the progenitor cells toward the RPE cell fate at the expense of neural retinal cell fates.

Novel modelling strategies can integrate the dynamics of processes regulating the intestinal epithelium at multiple scales in homeostasis and following perturbations to provide unprecedented insights into the biology of the epithelium and support the development of safer novel drug candidates.