Responses of organ precursors to correct and incorrect inductive signals

Trends Cell Biol. 2023 Sep 20:S0962-8924(23)00191-5. doi: 10.1016/j.tcb.2023.08.008. Online ahead of print.ABSTRACTDuring embryonic development, the inductive molecules produced by local origins normally arrive at their target tissues in a nondirectional, diffusion manner. The target organ precursor cells must correctly interpret these inductive signals to ensure proper specification/differentiation, which is dependent on two prerequisites: (i) obtaining cell-intrinsic competence; and (ii) receiving correct inductive signals while resisting incorrect ones. Gain of intrinsic competence could avoid a large number of misinductions because the incompetent cells are nonresponsive to inductive signals. However, in cases of different precursor cells with similar competence and located in close proximity, resistance to incorrect inductive signals is essential for accurate determination of cell fate. Here we outline the mechanisms of how organ precursors respond to correct and incorrect inductive signals.PMID:37739814 | DOI:10.1016/j.tcb.2023.08.008

Source: Trends in Cell Biology - September 22, 2023 Category: Cytology Authors: Yun Yang Shuang Li Lingfei Luo Source Type: research