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Blood
2010 Jan 28;1154:906-9. doi: 10.1182/blood-2009-03-212274.
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Liprin (beta)1 is highly expressed in lymphatic vasculature and is important for lymphatic vessel integrity.
Norrmén C
,
Vandevelde W
,
Ny A
,
Saharinen P
,
Gentile M
,
Haraldsen G
,
Puolakkainen P
,
Lukanidin E
,
Dewerchin M
,
Alitalo K
,
Petrova TV
.
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The lymphatic vasculature is important for the regulation of tissue fluid homeostasis, immune response, and lipid absorption, and the development of in vitro models should allow for a better understanding of the mechanisms regulating lymphatic vascular growth, repair, and function. Here we report isolation and characterization of lymphatic endothelial cells from human intestine and show that intestinal lymphatic endothelial cells have a related but distinct gene expression profile from human dermal lymphatic endothelial cells. Furthermore, we identify liprin beta1, a member of the family of LAR transmembrane tyrosine phosphatase-interacting proteins, as highly expressed in intestinal lymphatic endothelial cells in vitro and lymphatic vasculature in vivo, and show that it plays an important role in the maintenance of lymphatic vessel integrity in Xenopus tadpoles.
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