Modelling co-development between the somites and neural tube in human trunk-like structures.

ABSTRACT: Human stem cell-based embryo models provide experimentally amenable in vitro systems for developmental research. A key feature of embryo models is their multi-lineage differentiation, which allows for the study of tissue co-development. Here we develop human trunk-like structures that have morphologically organized somites and a neural tube that form through self-organized, endogenous signalling. Transcriptomic comparison with human embryo datasets suggests that human trunk-like structure cells approximate Carnegie stage 13-14 (28-35 days after fertilization). The absence of a notochord leads to a dorsal identity, but exogenous Sonic Hedgehog signalling activation ventralizes both the somites and the neural tube in a dose-dependent manner. We further identify reciprocal signalling: neural

SUBMITTER: Makwana K 

PROVIDER: S-EPMC12717004 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature