相关实验视频
Updated: Jun 27, 2025

20:28
A Toolkit to Enable Hydrocarbon Conversion in Aqueous Environments
Published on: October 2, 2012
14.1K
发现了一种降解阿尔多-基托减少酶1C3 (AKR1C3) 的降解剂
Angelica V Carmona1, Shirisha Jonnalagadda1, Alfie M Case1
1Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68106, USA.
Communications chemistry
|April 29, 2024
概括
研究人员开发了一种新型的PROTAC降解剂,其向Aldo-keto减少酶1C3 (AKR1C3),这是与癌症扩散有关的蛋白质. 这种新化合物有效地降低了前列腺癌细胞中的AKR1C3和雄激素受体结合变异7 (ARv7).
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药用化学 医学化学
背景情况:
- 阿尔多-基因减少酶1C3 (AKR1C3) 在包括前列腺癌在内的各种癌症中被上调,有助于瘤生长和治疗抵抗.
- 雄激素受体结合变异7 (ARv7) 是割抵抗性前列腺癌中抗雄激素受体信号抑制剂的关键驱动因素.
- AKR1C3稳定了ARv7,加剧了前列腺癌的治疗耐药性.
研究的目的:
- 发现和描述AKR1C3.3.的第一类蛋白质溶解向奇美拉 (PROTAC) 降解剂.
- 评估该化合物在降解AKR1C3方面的有效性及其在前列腺癌模型中的下游影响.
主要方法:
- 开发一种新型的PROTAC分子,旨在诱导AKR1C3.3.的降解.
- 用AKR1C3 PROTAC降解剂治疗22Rv1前列腺癌细胞.
- 使用降解试验量化AKR1C3,ARv7和相关异型 (AKR1C1,AKR1C2) 蛋白质水平.
主要成果:
- 第一代AKR1C3 PROTAC降解剂在22Rv1细胞中强烈降低了AKR1C3表达 (DC50 = 52nM).
- 同时观察到ARv7的降解,DC50为70nM.
- 该化合物还在较小程度上降解了AKR1C1和AKR1C2异型.
结论:
- 开发的PROTAC分子是第一类的向AKR1C3.3的降解剂.
- 这种化合物作为一种有价值的化学工具,用于研究AKR1C3在癌症中的功能.
- 这些发现为前列腺癌干预提供了一个有前途的治疗策略,通过向AKR1C3和ARv7.
相关概念视频
Phase I Reactions: Reductive Reactions
200
Phase I biotransformation reductive reactions are chemical processes that modify drugs by introducing or revealing polar functional groups via reduction. Enzymes called reductases catalyze these reactions, playing a pivotal role in drug metabolism by transforming lipophilic drugs into more polar, water-soluble metabolites for easy excretion. An essential type of reductive reaction is the carbonyl group reduction, where aldehydes and ketones are reduced to alcohols. An example is the...
200
C–C Bond Cleavage: Retro-Aldol Reaction
5.7K
The reverse of the aldol addition reaction is called the retro-aldol reaction. Here, the carbon–carbon bond in the aldol product is cleaved under acidic or basic conditions to form two molecules of carbonyl compounds. The mechanism of the reaction consists of three steps.
In the first step, as depicted in Figure 1, the base deprotonates the β-hydroxy ketone at the hydroxyl group to form an alkoxide ion.
In the first step, as depicted in Figure 1, the base deprotonates the β-hydroxy ketone at the hydroxyl group to form an alkoxide ion.
5.7K
Aldehydes and Ketones to Alkanes: Wolff–Kishner Reduction
4.5K
Wolff–Kishner reduction involves converting aldehydes and ketones to alkanes using hydrazine and a base. The reaction converts a carbonyl group to a methylene group. The method was independently discovered by N. Kishner in 1911 and L. Wolff in 1912. The reduction is carried out in high-boiling solvents such as ethylene glycol and diethylene glycol because heat is required to deprotonate the N–H proton in one of the reaction steps. ...
4.5K
Vicinal Diols via Reductive Coupling of Aldehydes or Ketones: Pinacol Coupling Overview
1.7K
Wilhelm Rudolph Fittig discovered the pinacol coupling reaction in 1859. It is a radical dimerization reaction and involves the reductive coupling of aldehydes or ketones in the presence of hydrocarbon solvent to yield vicinal diols.
1.7K
Acid-Catalyzed Aldol Addition Reaction
2.5K
The aldol reaction of a ketone under acidic conditions successfully forms an unsaturated carbonyl as the final product instead of an aldol. The acid-catalyzed aldol reaction is depicted in Figure 1.
2.5K
Alcohols from Carbonyl Compounds: Reduction
10.4K
Reduction is a simple strategy to convert a carbonyl group to a hydroxyl group. The three major pathways to reduce carbonyls to alcohols are catalytic hydrogenation, hydride reduction, and borane reduction.
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
10.4K

