Self-assembled amphiphilic fluorescent probe: detecting pH-fluctuations within cancer cells and tumour tissues
作者:Soo Yeon Kim、Arup Podder、Hyunseung Lee、Youn-Joo Cho、Eun Hee Han、Sabina Khatun、Jonathan L. Sessler、Kwan Soo Hong、Sankarprasad Bhuniya
DOI:10.1039/d0sc03795h
日期:——
cell membranes and selected intracellular organelles without the need for specific tumour targeting. Time-dependent cellimaging studies reveal that CS-1 localizes within the cancer cell-membrane about 20 min post-incubation. This is followed by migration to the lysosomes at 30 min before being taken up in the mitochondria after about 60 min. Probe CS-1 can selectively labelcancercells and 3D cancer
异常的无氧代谢会导致特定细胞内细胞器内和周围细胞外区域内许多肿瘤的pH值降低。有关细胞和组织中pH波动的信息可以帮助鉴定肿瘤性病变,并有助于了解致癌因素。在这里,我们报告了一种两亲性荧光pH探针(CS-1),由于其暂时的运动,它可以在癌细胞膜和选定的细胞内细胞器中提供与pH相关的信息,而无需进行特定的肿瘤靶向。时间依赖性细胞成像研究表明CS-1温育后约20分钟定位在癌细胞膜内。随后在30分钟时迁移至溶酶体,然后在约60分钟后被线粒体吸收。探头CS-1可以选择性标记癌细胞和癌症三维球状体和使用该绿色荧光通道(被容易地观察到λ EM = 532纳米)。相反,CS-1仅少量标记正常细胞,与标准细胞内细胞器探针共同孵育时,发现相对较低的Pearson相关系数。无论在体内和体外实验提供支持该建议是CS-1充当肿瘤外围的荧光标记,归因于质子诱导的聚集。肌肉和肝脏的反应要低得多。基于目前的结果,我们建议
COMPOUNDS AND COMPOSITIONS FOR INTRACELLULAR DELIVERY OF THERAPEUTIC AGENTS
申请人:ModernaTX, Inc.
公开号:US20220409536A1
公开(公告)日:2022-12-29
The disclosure features novel lipids and compositions involving the same. Nanoparticle compositions include a novel lipid as well as additional lipids such as phospholipids, structural lipids, and PEG lipids. Nanoparticle compositions further including therapeutic and/or prophylactics such as RNA are useful in the delivery of therapeutic and/or prophylactics to mammalian cells or organs to, for example, regulate polypeptide, protein, or gene expression.
Progesterone-cationic lipid hybrid as anticancer agent and the process of synthesis thereof
申请人:Council of Scientific & Industrial Research
公开号:US10100079B2
公开(公告)日:2018-10-16
The present invention relates to the development of the cationic progesterone compounds as a novel anti-tumor agent. The present invention provides a method for the preparation of novel series of progesterone derivatives. The invention also provides information related to highly selective anti-cancer activities of these compounds in wide range of cancer cell irrespective of their progesterone receptor status. Thus, the presently disclosed cationic progesterone compounds offer a viable option as anti-cancer therapeutics.