Gap junctions between the oocyte and companion follicle cells in the mammalian ovary.
Gap junctions between the oocyte and companion follicle cells in the mammalian ovary.
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DOI：
10.1083/jcb.71.2.680
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发表时间：
1976-11
期刊：
影响因子：
--
通讯作者：
Albertini DF
中科院分区：
文献类型：
--
作者：
Anderson E;Albertini DF
新生大鼠和成年小鼠、大鼠、兔和灵长类动物卵巢的示踪和冷冻断裂电子显微镜显示卵泡细胞和卵母细胞之间存在缝隙连接。连接点位于卵泡细胞突起的末端，这些突起穿过卵透明膜并终止于微绒毛和卵膜上均匀轮廓的非微绒毛区域。缝隙连接通常与粘连斑连接有关。差距连接偶尔由微小的卵圆形斑块组成，但更经常地出现为P面上的直线的单行或多行颗粒聚集体或E面上的凹坑。卵泡细胞-卵母细胞缝隙连接的功能意义进行了讨论方面的调节减数分裂和黄体化。
Tracer and freeze-fracture electron microscopy of the ovaries of neonatal rat and adult mouse, rat, rabbit, and primate have revealed the presence of gap junctions between follicle cells and oocytes. The junctional connections are found at the ends of follicle cell projections which traverse the zona pellucida and terminate upon microvilli and evenly contoured nonmicrovillar regions of the oolemma. Gap junctions are often seen associated with a macula adherens type of junction. The gap junctions occasionally consist of minute ovoid plaques, but nore frequently appear as rectilinear single- or multiple- row aggregates of particles on the P-face or pits on the E-face. The functional significance of follicle cell-oocyte gap junctions is discussed with respect to the regulation of meiosis and luteinization.