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- W2912804643 abstract "Skeletogenesis in the sea urchin embryo gives rise to a pair of intricate endoskeletal spicules. Deposition of these skeletal elements in the early larva is the outcome of a morphogenetic program that begins with maternal inputs in the early zygote and results in the specification of the large micromere-primary mesenchyme cell (PMC) lineage. PMCs are of considerable interest as a model system, not only to dissect the mechanism of specific developmental processes, but also to investigate their evolution and the unrivaled level of control over the formation of a graded, mechanically robust, yet single crystalline biomineral. The ability to study gene regulatory circuits, cellular behavior, signaling pathways, and molecular players involved in biomineralization is significantly boosted by the high level of autonomy of PMCs. In fact, in the presence of horse serum, micromeres differentiate into PMCs and produce spicules in vitro, separated from the embryonic milieu. PMC culture eliminates indirect effects that can complicate the interpretation of experiments in vivo, offers superior spatiotemporal control, enables PMC-specific readouts, and is compatible with most imaging and characterization techniques. In this chapter, we provide an updated protocol, based on the pioneering work by Okazaki and Wilt, for the isolation of micromeres and subsequent culture of PMCs, as well as protocols for fixation and staining for fluorescent microscopy, preparation of cell cultures for electron microscopy, and the isolation of RNA." @default.
- W2912804643 created "2019-02-21" @default.
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- W2912804643 date "2019-01-01" @default.
- W2912804643 modified "2023-09-23" @default.
- W2912804643 title "Culture of and experiments with sea urchin embryo primary mesenchyme cells" @default.
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- W2912804643 doi "https://doi.org/10.1016/bs.mcb.2019.01.002" @default.
- W2912804643 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8273911" @default.
- W2912804643 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30777181" @default.
- W2912804643 hasPublicationYear "2019" @default.
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