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Postnatal lymphatic...
Postnatal lymphatic partitioning from the blood vasculature in the small intestine requires fasting-induced adipose factor
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- Bäckhed, Fredrik, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Wallenberglaboratoriet,Institute of Medicine, Department of Molecular and Clinical Medicine,Wallenberg Laboratory
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Crawford, P. A. (author)
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O'Donnell, D. (author)
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Gordon, J. I. (author)
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(creator_code:org_t)
- 2007
- 2007
- English.
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In: Proc Natl Acad Sci U S A. ; 104:2, s. 606-611
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Abstract
Subject headings
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- Lymphatic vessels develop from specialized venous endothelial cells. Using knockout mice, we found that fasting-induced adipose factor (Fiaf) is required for functional partitioning of postnatal intestinal lymphatic and blood vessels. In wild-type animals, levels of intestinal Fiaf expression rise during the first postnatal day and peak at day 2, which coincides with the onset of the lymphatico-venous partitioning abnormality in Fiaf-/- mutants on a mixed 129/SvJ:C57BL/6 genetic background. Fiaf deficiency is not associated with disruption of the blood vasculature or with lymphatic endothelial recruitment of smooth muscle cells. We identified Prox1, a critical regulator of lymphangiogenesis, as a downstream target for Fiaf signaling in the intestinal lymphatic endothelium. This organ-specific lymphovascular abnormality can be rescued by allowing embryonic Fiaf-/- intestinal isografts to develop in Fiaf+/+ recipients.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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