
JLK 6γ-secretase inhibitor |
Sample solution is provided at 25 µL, 10mM.
































Quality Control & MSDS
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- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
- Datasheet
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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希望有大神赐教!谢谢!
指导意见:
毕竟阴道上皮是鳞状上皮,而输尿管,膀胱,尿道的上皮是柱状上皮,形态上是不一样的.所以您要是对您的结果出怀疑态度,首先:重新留尿,做一个复检(留尿时注意防止阴道分泌物污染);或者让值班医生分析一下是那种类型的上皮(鳞状还是柱状).所以不要担心这个结果.一般情况下污染的比较多.
病情描述(发病时间、主要症状等):
体检血常规中血小板计数343.血小板比积0.39.
尿检中白细胞计数26.2.上皮细胞计数10.30
心电图下写窦性心律,p-r间期偏短
想得到怎样的帮助:
有没有什么大问题
如题,求助。做肝癌细胞侵袭、迁移实验,用哪种细胞株比较好?
2:红细胞计数(RBC)(参考值:3.5~5.5),(单位:10^12/L)
3:血红蛋白浓度(HB)(参考值:120~160),(单位:g/L)
4:红细胞压积(HCT)(参考值:40~48),(单位:%)
5:平均红细胞体积(MCV)(参考值:80~97),(单位:fL)
6:平均红细胞血红蛋白含量(MCH)(参考值:26.5~33.5),(单位:pg)
7:平均红细胞血红蛋白浓度(MCHC)(参考值:300~360),(单位:g/L)
8:血小板计数(PLT)(参考值:100~300),(单位:10^9/L)
9:淋巴细胞比值(LY%)(参考值:17~48),(单位:%)
10:单核细胞比例(MONO%)(参考值:4-10),(单位:%)
11:中性粒细胞比例(NEUT%)(参考值:43~76),(单位:%)
12:淋巴细胞计数(LY)(参考值:0.8~4.0),(单位: 10^9/L)
13:单核细胞计数(MONO)(参考值:0.3~0.8),(单位:10^9/L)
14:中性粒细胞计数(NEUT)(参考值:1.2~6.8),(单位:10^9/L)
15:红细胞分布宽度(参考值:11~14.5),(单位:%)
16:血小板体积分布宽度(PDW)(参考值:9~18),(单位:%)
17:平均血小板体积(MPV)(参考值:7.4~12.5),(单位:fL)
18:大血小板比例(P-LCR)(参考值:10~50),(单位:%)

