Abstract:
BACKGROUND:Vascular endothelial cells (VECs) play crucial roles in physiological and pathologic conditions in tissues and organs. Most of these roles are related to VEC plasma membrane proteins. In the kidney, VECs are closely associated with structures and functions; however, plasma membrane proteins in kidney VECs remain to be fully elucidated. METHODS:Rat kidneys were perfused with cationic colloidal silica nanoparticles (CCSN) to label the VEC plasma membrane. The CCSN-labeled plasma membrane fraction was collected by gradient ultracentrifugation. The VEC plasma membrane or whole-kidney lysate proteins were separated by sodium dodecyl sulfate polyacrylamide gel electrophoresis and digested with trypsin in gels for liquid chromatography-tandem mass spectrometry. Enrichment analysis was then performed. RESULTS:The VEC plasma membrane proteins were purified by the CCSN method with high yield (approximately 20 μg from 1 g of rat kidney). By Mascot search, 582 proteins were identified in the VEC plasma membrane fraction, and 1,205 proteins were identified in the kidney lysate. In addition to 16 VEC marker proteins such as integrin beta-1 and intercellular adhesion molecule-2 (ICAM-2), 8 novel proteins such as Deltex 3-like protein and phosphatidylinositol binding clathrin assembly protein (PICALM) were identified. As expected, many key functions of plasma membranes in general and of endothelial cells in particular (i.e., leukocyte adhesion) were significantly overrepresented in the proteome of CCSN-labeled kidney VEC fraction. CONCLUSIONS:The CCSN method is a reliable technique for isolation of VEC plasma membrane from the kidney, and proteomic analysis followed by bioinformatics revealed the characteristics of in vivo VECs in the kidney.
journal_name
Clin Exp Nephroljournal_title
Clinical and experimental nephrologyauthors
Liu Z,Xu B,Nameta M,Zhang Y,Magdeldin S,Yoshida Y,Yamamoto K,Fujinaka H,Yaoita E,Tasaki M,Nakagawa Y,Saito K,Takahashi K,Yamamoto Tdoi
10.1007/s10157-012-0708-1subject
Has Abstractpub_date
2013-06-01 00:00:00pages
327-37issue
3eissn
1342-1751issn
1437-7799journal_volume
17pub_type
杂志文章abstract:BACKGROUND:In 2013, eculizumab was approved for treatment of the atypical hemolytic-uremic syndrome (aHUS) in Japan, which was defined as a thrombotic microangiopathy (TMA) excluding Shiga toxin-producing Escherichia coli-HUS and thrombotic thrombocytopenic purpura. Simultaneously, post-marketing surveillance was start...
journal_title:Clinical and experimental nephrology
pub_type: 杂志文章
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journal_title:Clinical and experimental nephrology
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journal_title:Clinical and experimental nephrology
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Clinical and experimental nephrology
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journal_title:Clinical and experimental nephrology
pub_type: 杂志文章
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更新日期:2011-06-01 00:00:00
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journal_title:Clinical and experimental nephrology
pub_type: 杂志文章
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journal_title:Clinical and experimental nephrology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2015-06-01 00:00:00
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更新日期:2004-03-01 00:00:00
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journal_title:Clinical and experimental nephrology
pub_type: 临床试验,杂志文章
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更新日期:2020-03-01 00:00:00
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journal_title:Clinical and experimental nephrology
pub_type: 杂志文章,评审
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journal_title:Clinical and experimental nephrology
pub_type: 临床试验,杂志文章
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更新日期:2006-12-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Clinical and experimental nephrology
pub_type: 杂志文章
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