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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Park, J. Song, K. H. Ha, H. |
| Description | Author Affiliation: Park J ( Department of Bioinspired Science and Division of Life and Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea.) |
| Abstract | Fractalkine (CX3CL1) is a unique chemokine that functions not only as a chemokine but also as an adhesion molecule. Fractalkine plays an important role in the recruitment of macrophages into the kidneys by binding to its specific receptor CX3CR1, and renal fractalkine expression was shown to be increased in chronic renal allograft rejection. Considering that microcapillary inflammation is a key feature of chronic renal allograft rejection, the present study examined whether monocytes bind to mesangial cells cultured in the presence of lipopolysaccharide (LPS) through fractalkine/CX3CR1 in order to understand their regulation with respect to inflammation-induced renal allograft dysfunction. Mouse mesangial cells were stimulated with LPS in the presence or absence of fractalkine or CX3CR1 siRNA. Calcein-AM-labeled monocytes were used to evaluate monocyte binding. Fractalkine and CX3CR1 mRNA and protein expression were measured by real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. LPS at 100 ng/mL significantly increased monocyte binding to mesangial cells. Each siRNA against fractalkine or CX3CR1 effectively inhibited LPS-induced monocyte-mesangial cell binding. Fractalkine and CX3CR1 mRNA expression were enhanced in mesangial cells stimulated with LPS. Fractalkine protein synthesis in media and lysate of mesangial cells were also induced by LPS. These results demonstrated that LPS induces monocyte-mesangial cell binding through the fractalkine/CX3CR1 system and suggested that fractalkine/CX3CR1 system may contribute to renal inflammation leading to chronic renal allograft rejection. |
| File Format | HTM / HTML |
| ISSN | 00411345 |
| Issue Number | 4 |
| Volume Number | 44 |
| e-ISSN | 18732623 |
| Journal | Transplantation Proceedings |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-05-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Transplantation__semicolon__medicine Cell Adhesion Drug Effects Chemokine Cx3cl1 Metabolism Lipopolysaccharides Pharmacology Mesangial Cells Monocytes Receptors, Cytokine Receptors, Hiv Animals Cells, Cultured Genetics Coculture Techniques Enzyme-linked Immunosorbent Assay Immunology Mice Rna Interference Real-time Polymerase Chain Reaction Reverse Transcriptase Polymerase Chain Reaction Signal Transduction Time Factors Transfection Tumor Necrosis Factor-alpha Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Transplantation Surgery |
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