| JLK 6γ-secretase inhibitor |

Sample solution is provided at 25 µL, 10mM.
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Cell Stem Cell.2017 Nov 20. pii: S1934-5909(17)30375-2.Quality Control & MSDS
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- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
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Chemical structure


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| Cas No. | 62252-26-0 | SDF | Download SDF |
| Synonyms | 7-Amino-4-chloro-3-methoxy-1H-2-benzopyran | ||
| Chemical Name | 7-amino-4-chloro-3-methoxy-1H-isochromen-1-one | ||
| Canonical SMILES | COC1=C(Cl)C2=CC=C(N)C=C2C(O1)=O | ||
| Formula | C10H8ClNO3 | M.Wt | 225.63 |
| Solubility | <22.56mg l="" in="" dmso;="">22.56mg><5.64mg l="" in="" ethanol="">5.64mg> | Storage | Store at RT |
| Physical Appearance | Yellow solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
JLK 6, an isocoumarin, is a selective inhibitor of γ-secretase, with an IC50 value between 10 μM-1 mM [1, 2].
The enzyme γ-secretase catalyzes the cleavage of β-Amyloid precursor protein (βAPP) to produce Amyloid β-peptide (Aβ).Aβ is a part of the plaque present in the brain of patients with Alzheimer’s disease. γ-secretase also targets other substrates like Notch. Notch is a transmembrane protein which is involved in important functions during different stages in development, both embryonic and adulthood [1].
HEK293 cells were used. In these cells, wild-type βAPP was overexpressed (962 fmol/mL in 35-mm wells). JLK6 markedly reduced Aβ secreted from these cells. Interestingly, JLK6 potentiated the recovery of two fragments. Immunological characterization indicated that one fragment was labelled with a specific antibody against the Asp1 residue of Aβ. JLK6 also inhibited the Aβ recovery from cells overexpressing Swedish-mutant βAPP to a similar extent [2].
In the zebrafish embryo, JLK isocoumarin inhibitors did not change the Notch pathway responsible for somitogenesis. Unlike other γ-secretase inhibitors, these agents did not affect E-cadherin processing. JLKs did not inhibit α-secretase, β-site APP cleaving enzymes (BACE) 1 and BACE2, GSK3β kinase and proteasome. JLK inhibitors prevented Aβ production without inducing unwanted cleavages of other proteins [1].
References: [1]. Petit A, Pasini A, Alves Da Costa C, et al. JLK isocoumarin inhibitors: Selective γ-secretase inhibitors that do not interfere with notch pathway in vitro or in vivo. Journal of neuroscience research, 2003, 74(3): 370-377.[2]. Petit A, Bihel F, da Costa CA, et al. New protease inhibitors prevent γ-secretase-mediated production of Aβ40/42 without affecting Notch cleavage. Nature cell biology, 2001, 3(5): 507-511.
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生物工程的应用领域非常广泛,包括农业、工业、医学、药物学、能源、环保、冶金、化工原料等。它必将对人类社会的政治、经济、军事和生活等方面产生巨大的影响,为世界面临的资源、环境和人类健康等问题的解决提供美好的前景。展开
红细胞压积,是指红细胞占血液体积的比例,您仅仅是比参考范围略低,同时红细胞数量,和血红蛋白并没有下降,这可能是血液有所稀释所致。
白细胞计数3.9,正常的话 4-10之间,你仅仅是比参考范围略下降一丁点,本身并无意义,参考范围是大致的。而且血液还可能存在稀释可能性
中性粒细胞绝对值和百分比略低一点,同时淋巴细胞百分比略有上升,那这本身就只是略高一点点,而一般比如感冒以后,也往往可以升高,其他的红细胞分布宽度等是派生指标,没大意义的。
总之单单看这一个血常规检验,本身没有什么大的异常发现,当然也可以稍后复查,比如过2周以后复查
我是厉清,更多医疗知识,请看 厉清就是我 的新浪博客
生物工程包括五大工程,即遗传工程(基因工程)、细胞工程、微生物工程(发酵工程)、酶工程(生化工程)和生物反应器工程。在这五大领域中,前两者作用是将常规菌(或动植物细胞株)作为特定遗传物质受体,使它们获得外来基因,成为能表达超远缘性状的新物种——“工程菌”或“工程细胞株”。后三者的作用则是这一有巨大潜在价值的新物种创造良好的生长与繁殖条件,进行大规模的培养,以充分发挥其内在潜力,为人们提供巨大的经济效益 和社会效益。
生物工程的应用领域非常广泛,包括农业、工业、医学、药物学、能源、环保、冶金、化工原料等。它必将对人类社会的政治、经济、军事和生活等方面产生巨大的影响,为世界面临的资源、环境和人类健康等问题的解决提供美好的前景。展开
如题,求助。做肝癌细胞侵袭、迁移实验,用哪种细胞株比较好?
看到之前的一个朋友也发了IBC会议的PPT内容,不过好像没有这个PPT(不确定,要是重复了请见谅)。
因为会议上投影的问题,当时有些内容贾老师没介绍太多。不过内容相当不错,主要是国内比较缺乏这方面的信息和经验。可以算得上是干货吧,不过里面主要是一些规则性或方向性的内容,需要具体细节,只能花钱请她做顾问了。
AudreyJia是美籍华人,在FDA做CMCReviewer之前也一直是从事细胞开发及细胞培养的工作。她应该也是目前唯一一个生物大分子部门中,唯一从FDA离职出来从事顾问工作的。可能很多国内单抗药企大佬都认识她,可能很多园子里面的人也见过她了。
谁能赏几个积分啊?新人,没积分,一些东西想看或者下载都不行。
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Monoclonality_JIA1.pdf(952.57k)

