5 条结果 关键词:TmDOTP5- ×

A high-throughput imaging platform to characterize extracellular pH in organotypic three-dimensional in vitro models of liver cancer.

NMR in biomedicine 2021 Savic LJ, Schobert IT, Hamm CA, Adam LC 等 6 人

本研究针对肝细胞癌独特的肿瘤代谢及其对治疗反应的影响,提出一种基于磁共振波谱成像(MRSI)的高通量细胞外pH(pHe)成像平台,用于三维(3D)体外肝癌模型。采用BIRDS(biosensor imaging of redundant deviation in shifts)技术在9.4 T和11.7 T磁共振谱仪上进行验证,同时...

Extracellular pH mapping of liver cancer on a clinical 3T MRI scanner.

Magnetic resonance in medicine 2020 Coman D, Peters DC, Walsh JJ, Savic LJ 等 12 人

本研究旨在验证在临床3T MRI扫描仪上开发非侵入性细胞外pH(pHe)成像方法用于肝癌分子成像的可行性。此前,BIRDS(Biosensor Imaging of Redundant Deviation in Shifts)已在9.4T和11.7T小动物扫描仪上实现活体pHe成像,其3D化学位移成像(CSI)读出依赖于TmDOTP...

Mapping Extracellular pH of Gliomas in Presence of Superparamagnetic Nanoparticles: Towards Imaging the Distribution of Drug-Containing Nanoparticles and Their Curative Effect on the Tumor Microenvironment.

Contrast media & molecular imaging 2017 Maritim S, Coman D, Huang Y, Rao JU 等 6 人

胶质瘤脑微血管受损,静脉注射含药纳米颗粒(D-NPs)和超顺磁氧化铁纳米颗粒(SPIO-NPs)可在递送高剂量药物的同时允许磁共振成像(MRI)追踪药物分布。然而,SPIO-NPs 产生的超顺磁场会干扰常规 MRI 分子读出。细胞外 pH(pHe)是肿瘤标志,因此映射 pHe 对评估肿瘤微环境和疗效至关重要。脑 pHe 可通过生物传...

Towards longitudinal mapping of extracellular pH in gliomas.

NMR in biomedicine 2016 Huang Y, Coman D, Herman P, Rao JU 等 6 人

生物传感器冗余位移成像(BIRDS)是一种超快化学位移成像技术,需要静脉输注顺磁探针,如与铥离子(Tm3+)络合的1,4,7,10-四氮杂环十二烷-1,4,7,10-四亚甲基膦酸(TmDOTP5-)。该技术通过检测探针中超精细位移不可交换质子的pH敏感共振来成像细胞外pH(pHe),可绘制瘤内-瘤周pHe梯度,满足肿瘤研究需求。然而...

Characterization of a lanthanide complex encapsulated with MRI contrast agents into liposomes for biosensor imaging of redundant deviation in shifts (BIRDS).

Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2014 Maritim S, Huang Y, Coman D, Hyder F

本文报道了一种将顺磁性镧系配合物TmDOTP5-与强T1/T2磁共振对比剂Magnevist和Molday ION共同封装于DPPC脂质体的纳米探针,并评估其用于BIRDS分子成像的可行性。传统脂质体MRI探针主要依赖组织水T1/T2弛豫增强,在强顺磁环境中缺乏特异性分子读出,难以用于疾病治疗监测。BIRDS通过检测TmDOTP5-...