Basal and angiopoietin-1–mediated endothelial permeability is regulated by sphingosine kinase-1
نویسندگان
چکیده
منابع مشابه
Basal and angiopoietin-1-mediated endothelial permeability is regulated by sphingosine kinase-1.
Endothelial cells (ECs) regulate the barrier function of blood vessels. Here we show that basal and angiopoietin-1 (Ang-1)-regulated control of EC permeability is mediated by 2 different functional states of sphingosine kinase-1 (SK-1). Mice depleted of SK-1 have increased vascular leakiness, whereas mice transgenic for SK-1 in ECs show attenuation of leakiness. Furthermore, Ang-1 rapidly and t...
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Sphingosine kinase 1 (SK1) phosphorylates sphingosine to form sphingosine 1-phosphate (S1P), which has the ability to promote cell proliferation and survival and stimulate angiogenesis. The SK1/S1P pathway also plays a critical role in regulation of cyclooxygenase-2 (COX-2), a well-established pathogenic factor in colon carcinogenesis. Therefore, we examined the expression of SK1 and COX-2 in r...
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ژورنال
عنوان ژورنال: Blood
سال: 2008
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood-2007-05-092148