| Hexylresorcinolmushroom tyrosinase 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
- View current batch:
- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure


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| Cas No. | 136-77-6 | SDF | Download SDF |
| Chemical Name | 4-hexylbenzene-1,3-diol | ||
| Canonical SMILES | CCCCCCC1=C(O)C=C(O)C=C1 | ||
| Formula | C12H18O2 | M.Wt | 194.27 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| 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. | ||
IC50: 1.24 μM
Hexylresorcinol is a mushroom tyrosinase inhibitor.
Tyrosinase, a copper-containing enzyme, is distributed in microorganisms, animals, and plants widely. Mushroom tyrosinase has been becoming popular due to its availability and usages in various applications.
In vitro: Previous results showed hexylresorcinol could inhibit both mono- and di-phenolase activity of mushroom tyrosinase. Moreover, hexylresorcinol at 2 μM lengthened the lag period from 98 s to 26. Hexylresorcinol could also display reversible inhibition of the enzyme. In addition, the kinetic analyses showed that hexylresorcinol was a competitive inhibitor with the apparent inhibition constant binding with free enzyme to be 0.443 μM for diphenolase [1].
In vivo: Previous in vivo study showed that hexylresorcinol could induce chromosome aberrations in mouse eukaryotic cells at doses of 0.5, 0.05, and 0.005 mg/g and the metabolic transformation of hexylresorcinol decreased its genotoxic effect in mice. Moreover, the mutagenic effect lasted for 3 days only at the highest dose of hexylresorcinol (0.5 mg/g). Thus, hexylresorcinol doses less than 0.5 mg/g were metabolized within two days to the extent of the cytotoxic effect. In addition, hexylresorcinol was transformed at a rate of 0.0025–0.025 mg/day after a single administration to mice [2].
Clinical trial: Hexylresorcinol is clinically available for topically use on small skin infections, or as an ingredient in throat lozenges. Johnson & Johnson has marketed hexylresorcinol in its skincare products as an anti-aging cream (https://en.wikipedia.org/wiki/Hexylresorcinol).
References:[1] Chen QX,Ke LN,Song KK,Huang H,Liu XD. Inhibitory effects of hexylresorcinol and dodecylresorcinol on mushroom (Agaricus bisporus) tyrosinase. Protein J.2004 Feb;23(2):135-41.[2] Margulis AB,Ozhiganova IV,Bushmanova OV,Kolpakov AI,Il"inskaia ON. Hexylresorcinol induces chromosome aberrations in mouse peripheral blood cells. Genetika. 2005 Aug;41(8):1045-8.
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重组HMGB1A盒蛋白,一种HMGB1拮抗剂,由pQE-80L/DHFR/HMGB1Abox载体转染大肠杆菌,再经处理纯化获得。
有无公司代做的?
2、抗HMGB1中和抗体
在一篇文献中看到一种chickenanti-pigHMGB1polyclonalantibody,没有公司和货号。
文献《Contributionsofhighmobilitygroupboxproteininexperimentalandclinicalacutelunginjury》
两种都可以,急求!万分感谢!
分子式:C6428H9976N1720O2018S42 (仅多肽部分)
分子量:144 985 Da (仅多肽部分)
辅料包括:蔗糖、聚山梨酯80、十二水合磷酸氢二钠、二水合磷酸二氢钠和注射用水。
【性状】:澄清至半透明的无色至淡黄色液体。
参考资料:http://baike.baidu.com/view/10489361.htm
华北制药完成重组人源抗狂犬病毒单克隆抗体注射液I期临床
2013-10-25
近日,由华北制药集团新药研究开发有限责任公司(以下简称华北制药新药公司)开发研制的国家一类新药重组人源抗狂犬病毒单克隆抗体(rhRIG),完成I期人体临床试验,即将启动II期临床试验。
作为我国第一个具有自主知识产权的重组人源抗体,I期临床试验结果表明,健康受试者对重组人源抗狂犬病毒单抗注射液的耐受性良好,药物在人体的安全性得到了初步确证。
与当前市售的狂犬病毒免疫球蛋白相比,重组人源狂犬病毒单克隆抗体以其对人体无免疫原性、无污染源、可连续规模生产等优势将逐渐成为预防狂犬病的具有良好应用前景的新产品。华北制药新药公司依托抗体药物研制国家重点实验室,经过多年研发,2009年,重组人源抗狂犬病毒单抗注射液获国家食品药品监督管理局新药人体临床试验批件,成为我国第一个具有自主知识产权的重组人源抗体的临床试验批件。
高健/文
详细原因细胞生物学产品专家齐氏生物整理如下:
目前,多种表达系统均可实现重组抗体的异源表达,但是抗体药物的产业化制备,始终以动物细胞大规模培养工艺为主。1986年首个治疗性抗体OKT3TM上市之初,动物细胞表达水平普遍不足100mg/L。经过近三十年间发展,业内用于重组抗体生产的动物细胞培养工艺,无论细胞培养密度,还是抗体表达水平均提高五十倍以上。流加培养工艺中细胞密度可达1~2×107 cell/mL,日均产量200mg/L/day以上(最高可达700mg/L/D),最终收液的容积产率可达3-5g/L(最高达13g/L),培养体积可至20,000L(Lonza, Portsmouth/NH—facility);灌注培养工艺中细胞密度可达2×108cell/ml,抗体容积产率最高达25~40g/L(Percivia公司XD?灌注系统)。以上行业技术水平的飞速提升,既源于上游细胞系构建技术的突破,也得益于细胞大规模培养工艺的日臻成熟。尤其是后者综合培养基开发,工艺优化,结合新型生物反应器的使用,实现了动物细胞的高密度、高表达培养,满足了临床上对于抗体药物“公斤级”产能的需求。
动物细胞的体外培养,涉及生物反应器的物理参数(温度、pH、DO、DCO2等)、培养基的营养成分(葡萄糖、谷氨酰胺、氨基酸、维生素等)的消耗,以及自身代谢产物(乳酸、氨、重组蛋白等)的积累与生理生化参数(细胞密度、活性,能荷等)的变化。作为重组抗体生产的“细胞工厂”,上述过程参数的改变会直接影响生产细胞系的活性与重组抗体的收率。比如:当乳酸(58 mM)、渗透压(382 mOsm/kg)、氨(5.1 mM)参数超过其相应的阈值,细胞活性和抗体产量均会明显下降。目前,业内已经对于细胞培养过程参数进行了深入的研究,在动物细胞大规模培养中下述参数的控制也已成定式
随着组学技术的发展与应用,目前的细胞培养工艺开发,已经从简单的工艺参数优化,进入系统的组学研究深度,生产细胞的代谢网络与重组抗体合成机制日益清晰。对于生产细胞系在不同工艺条件下抗体产量的差异,已经能够从基因组、蛋白组、代谢组等不同层次进行分析、解释。这就为今后大规模细胞培养工艺开发提供了新的线索。同时,业内随着“QbD”理念的深入,越来越多的“过程分析技术”(Process analytical technologies)开始应用于细胞培养过程,旨在通过加强关键过程参数的监控来确保蛋白药物的最终质量。如:培养基检测、培养过程监控、多批次数据分析等。未来基于重组抗体表达的细胞大规模培养工艺开发,将朝着稳定产能,提高质量的方向发展。

