A highly sensitive and selective miRNA detection approach based on a small circular probe and dual signal amplification has been reported. We successfully applied the assay for quantitative let-7a detection in cell lysates and the results agreed well with those of qRT-PCR.
An organocatalytic one‐step desymmetrizing dearomatization reaction of indoles with in situ formed vinylidene ortho‐quinone methides is reported. A set of [6‐6‐5] and/or [5‐6‐5] fused indoline heterocycles were obtained in excellent yields with excellent diastereoselectivities (>20:1 d.r.) and enantioselectivities (up to 99 % ee). Moreover, some of the obtained products were screened against a panel of cancer cell lines, and one was identified to inhibit the proliferation of all the tested cancer cells, but showed marginal effects against non‐cancerous cells. The methodology provides a platform for the synthesis of new leading compounds with antitumor activity.
Nucleus-targeted therapy holds great promise in cancer treatment, however, a lack of effective nucleus-specific delivery significantly limits its application potential. Here, we report a nucleus-targeted synergistic chemo-photodynamic therapy based on...
Protein therapy has the potential to revolutionize medicine, but the delivery of multiple proteins is challenging because it requires the development of a strategy that enables different proteins to be combined together and transported not only into cells, but also to the desired cell compartments, such as the nucleus. Here, an efficient intranuclear protein delivery nanoplatform based on modified ribonuclease A (RNase A) tuned self‐assembly is presented. RNase A bioreversibly modified with adamantane is functionalized with wind chime‐like lysine modified cyclodextrin (WLC) to generate RNase A‐WLC (R‐WLC). R‐WLC can not only enhance the cellular uptake of RNase A and accumulate it into the nucleus, but also works as nanovehicles to efficiently transport deoxyribonuclease I (DNase I) into the nucleus, resulting in greatly improved antitumor efficacy in vitro and in vivo. This protein co‐assembly strategy can be applied to other functional proteins and has great prospects in the treatment of many diseases.
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