Mechanical stress combines with planar polarised patterning during metaphase to orient embryonic epithelial cell divisions
Mechanical stress combines with planar polarised patterning during metaphase to orient embryonic epithelial cell divisions
复制标题
机械应力与中期的平面偏振图案相结合,以定向胚胎上皮细胞分裂
DOI:
10.1101/2023.07.12.548728
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Blanchard G
中科院分区:
文献类型:
--
作者:
Blanchard G
The planar orientation of cell division (OCD) is important for epithelial morphogenesis and homeostasis. Here, we ask how mechanics and antero-posterior (AP) patterning combine to influence the first divisions after gastrulation in the Drosophila embryonic epithelium. We analyse hundreds of cell divisions and show that stress anisotropy, notably from compressive forces, can reorient division directly in metaphase. Stress anisotropy influences the OCD by imposing metaphase cell elongation, despite mitotic rounding, and overrides interphase cell elongation. In strongly elongated cells, the mitotic spindle adapts its length to, and hence its orientation is constrained by, the cell long axis. Alongside mechanical cues, we find a tissue-wide bias of the mitotic spindle orientation towards AP-patterned planar polarised Myosin-II. This spindle bias is lost in an AP-patterning mutant. Thus, a patterning-induced mitotic spindle orientation bias overrides mechanical cues in mildly elongated cells, whereas in strongly elongated cells the spindle is constrained close to the high stress axis.
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影响因子:
21.3
作者:
Collinet, Claudio;Rauzi, Matteo;Lecuit, Thomas
通讯作者:
Lecuit, Thomas
影响因子:
4.6
作者:
Zoltán Spiró;K. Thyagarajan;A. De Simone;Sylvain Träger;K. Afshar;P. Gönczy
通讯作者:
Zoltán Spiró;K. Thyagarajan;A. De Simone;Sylvain Träger;K. Afshar;P. Gönczy
影响因子:
--
作者:
Karpova, N;Bobinnec, Y;Debec, A
通讯作者:
Debec, A
DOI:
10.1242/dev.120.4.827
发表时间:
1994
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Irvine,KD;Wieschaus,E
通讯作者:
Wieschaus,E
影响因子:
21.3
作者:
Butler, Lucy C.;Blanchard, Guy B.;Sanson, Benedicte
通讯作者:
Sanson, Benedicte