Difference between revisions of "Part:BBa K3338005"
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The human interleukin-6 promoter originally controls the expression of the cytokine Il-6 that is involved in the regulation of the acute-phase response to injury and infection but also other processes like hematopoiesis and embryonal development (Heinrich <i>el al.</i> 2003). The regulation of transcription exerted by the IL-6 promoter is mainly controlled by several cis-acting response elements present within the promoter region including binding motifs for NF-κB, NF-IL6, CREB, C/EBP, AP-1 and AP-2 (Xiao <i>et al.</i> 2004, Beetz <i>et al.</i> 2000). The regulation of the IL-6 promoter depends on the cell type and the stimulus. This means that different transcription factors are needed under different conditions. In our study we used LPS to induce IL-6 promoter activation. In this case the transcription factors NF-κB and AP1 play important roles (Xiao <i>et al.</i> 2004, Liu <i>et al.</i> 2018). The activation of the promoter is achieved by the cooperative binding of NF-κB and c-Jun (AP-1) (Xiao <i>et al.</i> 2004). AP-1- and NF-κB-translocation to the nucleus is triggered downstream of Toll like receptor (TLR) signaling cascades involving TRIF, MyD88, RIPK1 and TAK1. Toll like receptors are activated by a variety of pathogen-associated molecular patterns (Kawai and Akira 2007). | The human interleukin-6 promoter originally controls the expression of the cytokine Il-6 that is involved in the regulation of the acute-phase response to injury and infection but also other processes like hematopoiesis and embryonal development (Heinrich <i>el al.</i> 2003). The regulation of transcription exerted by the IL-6 promoter is mainly controlled by several cis-acting response elements present within the promoter region including binding motifs for NF-κB, NF-IL6, CREB, C/EBP, AP-1 and AP-2 (Xiao <i>et al.</i> 2004, Beetz <i>et al.</i> 2000). The regulation of the IL-6 promoter depends on the cell type and the stimulus. This means that different transcription factors are needed under different conditions. In our study we used LPS to induce IL-6 promoter activation. In this case the transcription factors NF-κB and AP1 play important roles (Xiao <i>et al.</i> 2004, Liu <i>et al.</i> 2018). The activation of the promoter is achieved by the cooperative binding of NF-κB and c-Jun (AP-1) (Xiao <i>et al.</i> 2004). AP-1- and NF-κB-translocation to the nucleus is triggered downstream of Toll like receptor (TLR) signaling cascades involving TRIF, MyD88, RIPK1 and TAK1. Toll like receptors are activated by a variety of pathogen-associated molecular patterns (Kawai and Akira 2007). | ||
| − | In our study it was tested for a LPS-sensitivity for use our inflammatory toxin sensor. Unfortunately, the mutagenized promoter is not sensitive to LPS supplementation to the medium of Hela cells. | + | In our study it was tested for a LPS-sensitivity for use in our inflammatory toxin sensor. Unfortunately, the mutagenized promoter is not sensitive to LPS supplementation to the medium of Hela cells. |
=Sequence and Features= | =Sequence and Features= | ||
Revision as of 14:55, 26 October 2020
Interleukin-6 Promoter mutagenized (IL-6 Pmut)
Usage and Biology
The human interleukin-6 promoter originally controls the expression of the cytokine Il-6 that is involved in the regulation of the acute-phase response to injury and infection but also other processes like hematopoiesis and embryonal development (Heinrich el al. 2003). The regulation of transcription exerted by the IL-6 promoter is mainly controlled by several cis-acting response elements present within the promoter region including binding motifs for NF-κB, NF-IL6, CREB, C/EBP, AP-1 and AP-2 (Xiao et al. 2004, Beetz et al. 2000). The regulation of the IL-6 promoter depends on the cell type and the stimulus. This means that different transcription factors are needed under different conditions. In our study we used LPS to induce IL-6 promoter activation. In this case the transcription factors NF-κB and AP1 play important roles (Xiao et al. 2004, Liu et al. 2018). The activation of the promoter is achieved by the cooperative binding of NF-κB and c-Jun (AP-1) (Xiao et al. 2004). AP-1- and NF-κB-translocation to the nucleus is triggered downstream of Toll like receptor (TLR) signaling cascades involving TRIF, MyD88, RIPK1 and TAK1. Toll like receptors are activated by a variety of pathogen-associated molecular patterns (Kawai and Akira 2007).
In our study it was tested for a LPS-sensitivity for use in our inflammatory toxin sensor. Unfortunately, the mutagenized promoter is not sensitive to LPS supplementation to the medium of Hela cells.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12INCOMPATIBLE WITH RFC[12]Illegal NheI site found at 1347
- 21INCOMPATIBLE WITH RFC[21]Illegal BglII site found at 220
Illegal BamHI site found at 395
Illegal XhoI site found at 1581 - 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI site found at 340
Illegal BsaI.rc site found at 387
Illegal BsaI.rc site found at 696
Characterization
References
Beetz, A., Peter, R. U., Oppel, T., Kaffenberger, W., Rupec, R. A., Meyer, M., van Beuningen, D., Kind, P., & Messer, G. (2000). NF-kappaB and AP-1 are responsible for inducibility of the IL-6 promoter by ionizing radiation in HeLa cells. International journal of radiation biology, 76(11), 1443–1453.
Heinrich, P. C., Behrmann, I., Haan, S., Hermanns, H. M., Müller-Newen, G., & Schaper, F. (2003). Principles of interleukin (IL)-6-type cytokine signalling and its regulation. The Biochemical journal, 374(Pt 1), 1–20.
Kawai, T., & Akira, S. (2007). Signaling to NF-kappaB by Toll-like receptors. Trends in molecular medicine, 13(11), 460–469.
Liu, X., Yin, S., Chen, Y., Wu, Y., Zheng, W., Dong, H., Bai, Y., Qin, Y., Li, J., Feng, S., & Zhao, P. (2018). LPS‑induced proinflammatory cytokine expression in human airway epithelial cells and macrophages via NF‑κB, STAT3 or AP‑1 activation. Molecular medicine reports, 17(4), 5484–5491.
Xiao, W., Hodge, D. R., Wang, L., Yang, X., Zhang, X., & Farrar, W. L. (2004). NF-kappaB activates IL-6 expression through cooperation with c-Jun and IL6-AP1 site, but is independent of its IL6-NFkappaB regulatory site in autocrine human multiple myeloma cells. Cancer biology & therapy, 3(10), 1007–1017.