SignalSilence? c-Jun siRNA I

• 产品编号：CST-6203S      品牌：CST       原厂货号：6203S
• 产品分类：DNA和RNA纯化 > RNA干扰 > RNAi Oligos > siRNA
• 应用分类：

描述：

CST的SignalSilence® c-Jun siRNA I 可以帮助研究者通过RNA干扰特异性地抑制c-Jun的表达，这种方法可以通过将双链RNA分子传递到细胞内从而使基因表达有选择的沉默。来自CST的所有的SignalSilence^® siRNA产品都是经过内部严格检测的，并且通过Western blot 分析证明确实能够减少目的蛋白的表达。通过三苯甲基分析每个碱基以监测寡核苷酸的合成，确保合适的配对效率。随后寡核苷酸通过亲和固相萃取法纯化。退火的RNA双链通过质谱分析来证实其精确的组成。每一批产品都通过质谱分析与前面的产品进行比较，来保证不同批次之间的最大一致性。

c-Jun是Jun家族的一个成员，Jun家族成员包括c-Jun, JunB, 和 JunD。c-Jun是转录因子激活蛋白-1（AP-1）的一个组分。AP-1是由Fos和Jun形成的二聚体以及 ATF家族成员组成的，能够结合并激活TRE/AP-1元件的转录（1）。包括生长因子，细胞因子和压力在内的细胞外信号能够激活AP-1依赖的转录过程。C-Jun的转录活性是通过SAPK/JNK对其中的Ser63和Ser73的磷酸化来调控的（2）。小鼠敲除实验表明c-Jun对于胚胎形成是至关重要的（3），进一步的研究发现c-Jun在多种组织和发育过程中发挥作用，包括轴突再生（4），肝脏再生（5）和T细胞发育（6）。AP-1所调控的基因发挥了多种生物学功能，包括细胞增殖、分化、凋亡、转化，侵润和转移，这依赖于细胞种类和具体情况（7-9）。其他的AP-1所调控的靶基因还能够调节细胞存亡，以及低氧和血管生成（8,10）。研究提示c-Jun可以作为癌症、血管重构、急性炎症反应和风湿性关节炎的重要治疗靶点（11,12）。

1. Jochum, W. et al. (2001) Oncogene 20, 2401-12.
2. Davis, R.J. (2000) Cell 103, 239-52.
3. Hilberg, F. et al. (1993) Nature 365, 179-81.
4. Raivich, G. et al. (2004) Neuron 43, 57-67.
5. Behrens, A. et al. (2002) EMBO J 21, 1782-90.
6. Riera-Sans, L. and Behrens, A. (2007) J Immunol 178, 5690-700.
7. Leppä, S. and Bohmann, D. (1999) Oncogene 18, 6158-62.
8. Shaulian, E. and Karin, M. (2002) Nat Cell Biol 4, E131-6.
9. Weiss, C. and Bohmann, D. (2004) Cell Cycle 3, 111-3.
10. Karamouzis, M.V. et al. (2007) Mol Cancer Res 5, 109-20.
11. Kim, S. and Iwao, H. (2003) J Pharmacol Sci 91, 177-81.
12. Dass, C.R. and Choong, P.F. (2008) Pharmazie 63, 411-4.

原厂资料：

Description

SignalSilence® c-Jun siRNA I from Cell Signaling Technology (CST) allows the researcher to specifically inhibit c-Jun expression using RNA interference, a method whereby gene expression can be selectively silenced through the delivery of double stranded RNA molecules into the cell. All SignalSilence® siRNA products from CST are rigorously tested in-house and have been shown to reduce target protein expression by western analysis.

Quality Control

Oligonucleotide synthesis is monitored base by base through trityl analysis to ensure appropriate coupling efficiency. The oligo is subsequently purified by affinity-solid phase extraction. The annealed RNA duplex is further analyzed by mass spectrometry to verify the exact composition of the duplex. Each lot is compared to the previous lot by mass spectrometry to ensure maximum lot-to-lot consistency.

Directions for Use

CST recommends transfection with 100 nM c-Jun siRNA I 48 to 72 hours prior to cell lysis. For transfection procedure, follow protocol provided by the transfection reagent manufacturer. Please feel free to contact CST with any questions on use.

Background

c-Jun is a member of the Jun Family containing c-Jun, JunB and JunD, and is a component of the transcription factor AP-1 (activator protein-1). AP-1 is composed of dimers of Fos, Jun and ATF family members and binds to and activates transcription at TRE/AP-1 elements (reviewed in 1). Extracellular signals including growth factors, chemokines and stress activate AP-1-dependent transcription. The transcriptional activity of c-Jun is regulated by phosphorylation at Ser63 and Ser73 through SAPK/JNK (reviewed in 2). Knock-out studies in mice have shown that c-Jun is essential for embryogenesis (3), and subsequent studies have demonstrated roles for c-Jun in various tissues and developmental processes including axon regeneration (4), liver regeneration (5) and T cell development (6). AP-1 regulated genes exert diverse biological functions including cell proliferation, differentiation, and apoptosis, as well as transformation, invasion and metastasis, depending on cell type and context (7-9). Other target genes regulate survival as well as hypoxia and angiogenesis (8,10). c-Jun has emerged as a promising therapeutic target for cancer, vascular remodeling, acute inflammation, as well as rheumatoid arthritis (11,12).

1. Jochum, W. et al. (2001) Oncogene 20, 2401-12.
2. Davis, R.J. (2000) Cell 103, 239-52.
3. Hilberg, F. et al. (1993) Nature 365, 179-81.
4. Raivich, G. et al. (2004) Neuron 43, 57-67.
5. Behrens, A. et al. (2002) EMBO J 21, 1782-90.
6. Riera-Sans, L. and Behrens, A. (2007) J Immunol 178, 5690-700.
7. Leppä, S. and Bohmann, D. (1999) Oncogene 18, 6158-62.
8. Shaulian, E. and Karin, M. (2002) Nat Cell Biol 4, E131-6.
9. Weiss, C. and Bohmann, D. (2004) Cell Cycle 3, 111-3.
10. Karamouzis, M.V. et al. (2007) Mol Cancer Res 5, 109-20.
11. Kim, S. and Iwao, H. (2003) J Pharmacol Sci 91, 177-81.
12. Dass, C.R. and Choong, P.F. (2008) Pharmazie 63, 411-4.

注意事项：

Storage: c-Jun siRNA I is supplied in RNAse-free water. Aliquot
and store at -20ºC.