Počet záznamů: 1
Julolidine-based small molecular probes for fluorescence imaging of RNA in live cells
- 1.
SYSNO ASEP 0576478 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Julolidine-based small molecular probes for fluorescence imaging of RNA in live cells Tvůrce(i) Mondal, I. C. (IN)
Rawat, P. (IN)
Galkin, Maksym (UOCHB-X) ORCID
Deka, S. (IN)
Karmakar, A. (PT)
Mondal, P. (IN)
Ghosh, S. (IN)Zdroj.dok. Organic & Biomolecular Chemistry. - : Royal Society of Chemistry - ISSN 1477-0520
Roč. 21, č. 38 (2023), s. 7831-7840Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova aggregation-induced emission ; graphene quantum dots ; living cells Obor OECD Organic chemistry Způsob publikování Omezený přístup Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 001067011900001 EID SCOPUS 85173019972 DOI https://doi.org/10.1039/d3ob01314F Anotace Intracellular RNA imaging with organic small molecular probes has been an intense topic, although the number of such reported dyes, particularly dyes with high quantum yields and long wavelength excitation/emission, is quite limited. The present work reports the design and synthesis of three cationic julolidine-azolium conjugates (OX-JLD, BTZ-JLD and SEZ-JLD) as turn-on fluorescent probes with appreciably high quantum yields and brightness upon interaction with RNA. A structure-efficiency relationship has been established for their potential for the interaction and imaging of intracellular RNA. Given their chemical structure, the free rotation between the donor and the acceptor gets restricted when the probes bind with RNA resulting in strong fluorescence emission towards a higher wavelength upon photoexcitation. A detailed investigation revealed that the photophysical properties and the optical responses of two probes, viz. BTZ-JLD and SEZ-JLD, towards RNA are very promising and qualify them to be suitable candidates for biological studies, particularly for cellular imaging applications. The probes allow imaging of intracellular RNA with prominent staining of nucleoli in live cells under a range of physiological conditions. The results of the cellular digest test established the appreciable RNA selectivity of BTZ-JLD and SEZ-JLD inside the cellular environment. Moreover, a comparison between the relative intensity profile of SEZ-JLD before and after the RNA-digestion test inside the cellular environment indicated that the interference of cellular viscosity in fluorescence enhancement is insignificant, and hence, SEZ-JLD can be used as a cell membrane permeable cationic molecular probe for deep-red imaging of intracellular RNA with a good degree of selectivity. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Rok sběru 2024 Elektronická adresa https://doi.org/10.1039/D3OB01314F
Počet záznamů: 1