Growth of linear spicules in cultured primary mesenchymal cells of sea urchin embryos is bidirectional☆

Glenn L. Decker; William J. Lennarz

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Growth of linear spicules in cultured primary mesenchymal cells of sea urchin embryos is bidirectional☆

机译：海胆胚胎原代间充质细胞中线性针状细胞的生长是双向的☆

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Thegrowthofspiculesoftheseaurchinembryowasstudiedinasimpleinvitrosysteminwhichprimarymesenchymalcellsattachtothesubstrata,migrateandfuseviafilopodia,andsubsequentlydepositCaCO3,whichinmostcasesisintheformoflinearrods.Theuseofautoradiographsfollowing45Ca2+pulse-chaselabelingrevealedthatinsuchasystemlinearspiculesthatformedhadtwofocalpointsofgrowth.ElongationoccurredbyadditionofapproximatelyequivalentamountsofCa2+tobothendsofeachrod.Multiformspiculeshavingvariablenumbersofelongationsites(tips)alsoshowedasimilarpatternofCa2+deposition.Thus,thegrowthofbothlinearandrelativelycomplexskeletalformsisapparentlyaccomplishedbythesamebasicmechanism.

机译：Thegrowthofspiculesoftheseaurchinembryowasstudiedinasimpleinvitrosysteminwhichprimarymesenchymalcellsattachtothesubstrata，migrateandfuseviafilopodia，andsubsequentlydepositCaCO3，whichinmostcasesisintheformoflinearrods.Theuseofautoradiographsfollowing45Ca2 +脉冲chaselabelingrevealedthatinsuchasystemlinearspiculesthatformedhadtwofocalpointsofgrowth.ElongationoccurredbyadditionofapproximatelyequivalentamountsofCa2 + tobothendsofeachrod.Multiformspiculeshavingvariablenumbersofelongationsites（提示）alsoshowedasimilarpatternofCa2 + deposition.Thus，thegrowthofbothlinearandrelativelycomplexskeletalformsisapparentlyaccomplishedbythesamebasicmechanism。

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《Developmental biology》 |1988年第2期|共页
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Glenn L. Decker; William J. Lennarz;
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1. Matrix metalloproteinase inhibitors disrupt spicule formation by primary mesenchyme cells in the sea urchin embryo [J] . Ingersoll EP., Wilt FH. Developmental biology . 1998,第1期

机译：基质金属蛋白酶抑制剂通过海胆胚胎中的原代间充质细胞破坏针状细胞的形成
2. Matrix Metalloproteinase Inhibitors Disrupt Spicule Formation by Primary Mesenchyme Cells in the Sea Urchin Embryo☆ [J] . Eric P. Ingersoll, Fred H. Wilt Developmental biology . 1998,第1期

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3. Ingression of primary mesenchyme cells of the sea urchin embryo: a precisely timed epithelial mesenchymal transition. [J] . Wu SY, Ferkowicz M, McClay DR Birth defects research, Part C. Embryo today: reviews . 2007,第4期

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Growth of linear spicules in cultured primary mesenchymal cells of sea urchin embryos is bidirectional☆

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