Follicle dynamics and global organization in the intact mouse ovary.

Follicle dynamics and global organization in the intact mouse ovary.
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DOI:
10.1016/j.ydbio.2015.04.006
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发表时间:
2015-07-01
影响因子:
2.7
通讯作者:
Laird, Diana J.
Laird, Diana J.
中科院分区:
生物学3区
文献类型:
--
作者:
Faire, Mehlika;Skillern, Amanda;Arora, Ripla;Nguyen, Daniel H.;Wang, Jason;Chamberlain, Chester;German, Michael S.;Fung, Jennifer C.;Laird, Diana J.

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组织和器官的定量分析可以揭示大规模的模式以及扰动和老化对生物结构的影响。在这里,我们开发了用于完整器官中单细胞成像的工具和用于评估3D空间关系的计算方法。在小鼠卵巢中,我们使用卵母细胞的核体积来读出被称为卵泡的卵母细胞-体细胞单位的静止或生长。从新生儿到成人的非生长卵泡动态的卵巢内定量符合数学函数,其证实了固定卵母细胞储备的模型。映射方法表明,在新生儿卵巢中建立的卵泡发生的放射状组织在成年期得以保留。相比之下,毛囊间聚类在衰老过程中增加,根据大小具有不同的动力学。这些广泛适用的工具可以揭示其他器官中的高维表型和与年龄相关的结构变化。在成年小鼠胰腺,我们发现随机径向组织的胰岛,但证据本地化的相互作用之间的最小的胰岛。
Quantitative analysis of tissues and organs can reveal large-scale patterning as well as the impact of perturbations and aging on biological architecture. Here we develop tools for imaging of single cells in intact organs and computational approaches to assess spatial relationships in 3D. In the mouse ovary, we use nuclear volume of the oocyte to read out quiescence or growth of oocyte-somatic cell units known as follicles. This in-ovary quantification of non-growing follicle dynamics from neonate to adult fits a mathematical function, which corroborates the model of fixed oocyte reserve. Mapping approaches show that radial organization of folliculogenesis established in the newborn ovary is preserved through adulthood. By contrast, inter-follicle clustering increases during aging with different dynamics depending on size. These broadly applicable tools can reveal high dimensional phenotypes and age-related architectural changes in other organs. In the adult mouse pancreas, we find stochastic radial organization of the islets of Langerhans but evidence for localized interactions among the smallest islets.
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