Membrane-tethered mucins have multiple functions on the ocular surface.

Membrane-tethered mucins have multiple functions on the ocular surface.
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DOI:
10.1016/j.exer.2010.02.014
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发表时间:
2010-06
影响因子:
3.4
通讯作者:
Gipson, Ilene K.
Gipson, Ilene K.
中科院分区:
医学3区
文献类型:
--
作者:
Govindarajan, Bharathi;Gipson, Ilene K.

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Membrane-tethered mucins are large glycoproteins present in the glycocalyx along the apical surface of all wet-surfaced epithelia of the body, including that of the ocular surface. Originally thought to function only in epithelial surface lubrication and hydration, data now indicate that the mucins are multifunctional molecules, each having unique as well as common functions. This review summarizes current knowledge regarding the three major membrane mucins of the ocular surface, MUC1, MUC4, and MUC16. The mucins vary in their ocular surface distribution, size, structural motifs, and functions. The ectodomains of each are released into the tear film and are, thus, a component of the soluble mucins of the tear film. Both animal and in vitro models for their study are herein described, as are alterations of the mucins in ocular surface disease.
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