The A3 adenosinereceptor (AR) is a Gprotein‐coupledreceptor (GPCR) overexpressed in the membrane of specific cancer cells. Thus, the development of nanosystems targeting this receptor could be a strategy to both treat and diagnose cancer. Iron‐filled carbonnanotubes (CNTs) are an optimal platform for theranostic purposes, and the use of a magnetic field can be exploited for cancer magnetic cell sorting
A 3腺苷受体 (AR) 是一种 G 蛋白偶联受体 (GPCR),在特定癌细胞的膜中过度表达。因此,针对这种受体的纳米系统的开发可能是一种治疗和诊断癌症的策略。充铁碳纳米管 (CNT) 是用于治疗诊断的最佳平台,磁场的使用可用于癌症磁性细胞分选和热治疗。在这项工作中,我们在铁填充的碳纳米管表面结合了 A 3 AR 配体,目的是靶向过度表达 A 3 AR 的细胞。特别是,设计了两种带有不同长度 PEG 接头的缀合物。A 3 的对接分析AR 表明 CNT 和接头均不干扰配体与受体的结合;A 3 AR 的体外初步放射性配体竞争试验证实了这一点。受这一结果的鼓舞,磁性细胞分选被应用于过表达或不表达 A 3 AR的细胞混合物,其中我们的化合物显示出与所有细胞的无差别结合。尽管如此,这是第一次将 GPCR 配体锚定在磁性纳米系统上,从而为癌症治疗的新应用打开了大门。
US9227979B2
申请人:——
公开号:US9227979B2
公开(公告)日:2016-01-05
FLUORESCENT ANTAGONISTS OF THE A3 ADENOSINE RECEPTOR
申请人:e Department of Health and Human Services The United State of America, as represented by th
公开号:US20130190335A1
公开(公告)日:2013-07-25
Disclosed are compounds of the formula (I) which are fluorescently labeled antagonists of the A
3
adenosine receptor:
wherein A, R
1
, R
2
, and Y are as described herein. Also disclosed are diagnostic compositions and a method of diagnosis of a patient for a possible treatment by an antagonist of the A
3
adenosine receptor, involving the use of one or more of these compounds as diagnostic agents.
Conjugable A3 adenosine receptor antagonists for the development of functionalized ligands and their use in fluorescent probes
作者:Stephanie Federico、Enrico Margiotta、Stefano Moro、Eszter Kozma、Zhan-Guo Gao、Kenneth A. Jacobson、Giampiero Spalluto
DOI:10.1016/j.ejmech.2019.111886
日期:2020.1
promising research target. In this work, two series of conjugable hA3AR antagonists, based on the pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidine nucleus, were developed. The introduction of an aromatic ring at the 5 position of the scaffold, before (phenylacetamido moiety) or after (1,2,3-triazole obtained by clickchemistry) the conjugation is aimed to increase affinity and selectivity towards the hA3AR