کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1994709 | 1541282 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Loss of Siah2 does not impact angiogenic potential of murine endothelial cells
ترجمه فارسی عنوان
از دست دادن چای 2 بر توانایی آنژیوژن سلول های اندوتلیال موش تاثیر نمی گذارد
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کلمات کلیدی
سیاهم، لیگاز اوبیکیتین، هیپوکسیا، آنژیوژنز، اندوتلیال،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
چکیده انگلیسی
Angiogenesis is triggered in response to hypoxia under many circumstances, from healthy cells and tissues during embryogenesis to pathological conditions like the formation of new blood vessels to supply tumours and promote invasive cancer. Siah2 has been shown to regulate the hypoxia pathway upstream of hypoxia-induced transcription factor subunit Hif-1alpha, and therefore may play an important role in angiogenesis in response to hypoxic stress in endothelial cells. This study aims to investigate the basic function of Siah2 in endothelial cells under hypoxia and to test the ability of Siah2 deficient cells to mount an angiogenic response when deprived of oxygen. We and others have previously shown that Siah2 is crucial for mediating the hypoxic response in many different cell types studied. In this study however, we describe that Siah2â/â endothelial cells have an intact hypoxic signalling pathway, including Hif-1alpha stabilisation and gene expression, the first report of a tissue or cell lineage in which the loss of Siah2 does not seem to impact hypoxic response signalling. In mice, the infiltration of Siah2â/â endothelial cells into a Matrigel plug containing a VEGF-A attractant was similar compared with wildtype endothelial cells. Ex vivo however, there was a reduced capacity of Siah2â/â aorta to form tubes or new vessels. Thus, we conclude that Siah2 is not essential for the hypoxic response of endothelial cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microvascular Research - Volume 102, November 2015, Pages 38-45
Journal: Microvascular Research - Volume 102, November 2015, Pages 38-45
نویسندگان
Christina S.F. Wong, Anna Chen, Mira C.P. Liu, Belinda S. Parker, Andreas Möller,