期刊
JOURNAL OF IMMUNOLOGICAL METHODS
卷 353, 期 1-2, 页码 102-110出版社
ELSEVIER
DOI: 10.1016/j.jim.2009.12.002
关键词
Bone marrow-derived macrophages; siRNA transfer; Viability; Electroporation; MAPK1; CD86
资金
- Deutsche Forschungsgemeinschaft [Bo996/3-3, SFB643, A6]
- Interdisciplinary Center for Clinical Research (IZKF) at the University Clinic of Erlangen
- Friedrich-Alexander-University of Erlangen-Nuremberg [A24, A28]
Selective gene silencing by RNA interference (RNAi) is a valuable tool for the targeted manipulation of the development and/or function of cells. Using a fluorescein-labeled non-silencing siRNA duplex, we established a protocol for the electroporation of primary mouse macrophages which routinely yielded >95% transfected cells. Electroporation of siRNAs directed against MAPK I and CD86 led to an efficient knock-down of cellular protein in bone marrow-derived mouse macrophages (BM-M phi). Importantly, the electroporation procedure did not impair the viability of BM-M phi, their ability to ingest or degrade E coli or their capacity to express iNOS mRNA, to produce NO or to upregulate TNF and IL-6 mRNA in response to inflammatory stimuli such as LPS. Therefore, we propose that electroporation of silencing siRNAs into murine BM-M phi is a highly efficient method to manipulate gene expression of BM-M phi that does not cause toxicity or a non-specific alteration of macrophage biology. (C) 2009 Elsevier B.V. All rights reserved
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