Wakayama symposium: challenges of future research in ocular surface cell biology.

Wakayama symposium: challenges of future research in ocular surface cell biology.
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DOI:
10.1016/j.jtos.2012.07.002
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发表时间:
2013-01
期刊:
The ocular surface
影响因子:
--
通讯作者:
Zhang J
Zhang J
中科院分区:
其他
文献类型:
--
作者:
Kao WW;Liu H;Zhang J

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在胚胎发育过程中,表面外胚层分化形成角膜、结膜和眼睑表皮上皮,以及腺上皮(泪腺和睑板腺)。神经嵴来源的眼周间充质细胞迁移和分化,导致角膜内皮和角膜基质、结膜、眼睑和小梁网的形成。功能性眼表组织的形成需要各种细胞因子和信号通路的转录因子和信号分子在时空上的协调表达,以及独特的细胞外基质的合成和重塑。尽管间充质和上皮之间的双向相互作用和信号传导被认为对于眼表组织的胚胎形成和成人体内平衡是必需的,但调节这些过程的分子和细胞机制仍然很大程度上未知。为了研究可能的机制,我们开发了小鼠模型,其中眼表上皮和基质的基因功能可以通过强力霉素诱导以空间和时间特定方式改变。
During embryonic development, surface ectoderm differentiates to form corneal, conjunctival, and eyelid epidermal epithelia, and glandular epithelium (lacrimal and meibomian glands). Periocular mesenchymal cells of neural crest origin migrate and differentiate, leading to the formation of corneal endothelium and the stromas of the cornea, conjunctiva, eyelids, and trabecular meshwork. The formation of functional ocular surface tissues requires coordinated spatial and temporal expression of transcription factors and signaling molecules of various cytokines and signaling pathways, and the synthesis and remodeling of unique extracellular matrix. Although bidirectional interactions and signaling between mesenchyme and epithelium are considered necessary for embryonic formation of ocular surface tissues and homeostasis in adults, the molecular and cellular mechanisms that regulate such processes remain largely unknown. To investigate possible mechanisms, we have developed mouse models in which the gene functions of ocular surface epithelia and stromas can be altered by Doxycycline induction in spatial and temporal specific manners.
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