Assessment of DNA/RNA Deregulation in Cancer Using 99mTc-Labeled Thiopurine.

IF 2.4 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Cancer Biotherapy and Radiopharmaceuticals Pub Date : 2024-06-01 Epub Date: 2024-03-08 DOI:10.1089/cbr.2023.0148
Chuang-Hsin Chiu, David J Yang, Yi-Chen Liou, Wei-Chung Chang, Tsung-Hsun Yu, Min-Ching Chung, Yen-Chun Lee, Ing-Jou Chen, Pao-Yeh Wang, Ching-Po Lin, Hey-Jen Tsay, Skye Hsin-Hsien Yeh
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使用 99mTc 标记的硫嘌呤评估癌症中的 DNA/RNA 失调。
背景:DNA 生物标记物有助于评估肿瘤细胞的增殖情况。作者旨在合成一种基于硫嘌呤的配体,用于评估核吸收和肿瘤定位。材料与方法:在螯合剂(cyclam)和硫嘌呤配体之间加入 2-hydroxypropyl spacer,制成 SC-06-L1。在乳腺癌(MCF-7、MDA-MB-231)和卵巢癌(TOV-112D、OVCAR3)细胞中评估了[99m锝]锝-SC-06-L1的体外细胞摄取和细胞/介质比。在 OVCAR-3 和 MCF-7 细胞中测定了 [99mTc]Tc-SC-06-L1 的细胞核和细胞质摄取比。对用 SC-06-L1 处理过的癌细胞进行了细胞毒性测定和细胞周期凋亡流式细胞分析。在肿瘤小鼠中进行了成像;氟-18-2'-氟脱氧葡萄糖([18F]FDG)用作对照。结果:99mTc]Tc-SC-06-L1 的放射化学纯度大于 95%。与[18F]FDG 相比,[99m锝]Tc-SC-06-L1 在癌细胞中显示出更高的细胞与介质比率。在 OVCAR-3 和 MCF-7 细胞中,[99m锝]锝-SC-06-L1 在核部分的摄取率很高,核/胞浆比分别为 8 和 2。细胞毒性试验表明,与硫唑嘌呤相比,SC-06-L1 对乳腺癌和卵巢癌细胞无毒性。结论[99m锝]锝-SC-06-L1具有稳定性并参与核活动。[99m锝]锝-SC-06-L1对癌细胞无毒性,在肿瘤成像中表现出快速动力学摄取模式。[99m锝]锝-SC-06-L1是一种很有前景的嘌呤通路导向系统成像生物标记物。
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来源期刊
CiteScore
7.80
自引率
2.90%
发文量
87
审稿时长
3 months
期刊介绍: Cancer Biotherapy and Radiopharmaceuticals is the established peer-reviewed journal, with over 25 years of cutting-edge content on innovative therapeutic investigations to ultimately improve cancer management. It is the only journal with the specific focus of cancer biotherapy and is inclusive of monoclonal antibodies, cytokine therapy, cancer gene therapy, cell-based therapies, and other forms of immunotherapies. The Journal includes extensive reporting on advancements in radioimmunotherapy, and the use of radiopharmaceuticals and radiolabeled peptides for the development of new cancer treatments.
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