Pregled bibliografske jedinice broj: 1182949
2- and 2,7-substituted pyridine pyrenes derivatives and their DNA/RNA interactions
2- and 2,7-substituted pyridine pyrenes derivatives and their DNA/RNA interactions // 2- and 2, 7-substituted pyridine pyrenes derivatives and their DNA/RNA interactions / Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna (ur.).
Veli Lošinj: Hrvatsko kemijsko društvo, 2021. str. 85-85 (predavanje, domaća recenzija, sažetak, znanstveni)
CROSBI ID: 1182949 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
2- and 2,7-substituted pyridine pyrenes derivatives and their DNA/RNA interactions
Autori
Košćak, Marta ; Piantanida, Ivo ; Božinović, Ksenija ; Majhen, Dragomira ; Kumar Kole ; Goutam ; Marder, Todd B.
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
2- and 2, 7-substituted pyridine pyrenes derivatives and their DNA/RNA interactions
/ Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna - Veli Lošinj : Hrvatsko kemijsko društvo, 2021, 85-85
Skup
27. hrvatski skup kemičara i kemijskih inženjera (27HSKIKI) ; 5. simpozij Vladimir Prelog
Mjesto i datum
Veli Lošinj, Hrvatska, 05.10.2021. - 08.10.2021
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Domaća recenzija
Ključne riječi
2- i 2, 7-piridin pireni ; nekovalentne interakcije s DNA/RNA ; fluorescencija ; citotoksičnost ; ROS specije
(2- and 2, 7-pyridine pyrenes ; noncovalent interactions with DNA/RNA ; fluorescence ; cytotoxicity ROS species)
Sažetak
Pyrene is one of the most frequently studied fluorophore due to its environmental emission sensitivity and tendency to excimers and exciplexes formation. 1-, 3-, 6- and 8-substituted pyrenes are already well known, while 2- and 7- substituted ones are less researched while possesing very interesting photophysical properties. Planar structure of pyrene allows “aromatic stacking” with nucleobases, also intercalation between DNA/RNA basepairs and possibility of groove binding. Our preliminary studies indicated strong interactions of cationic analogues (1M and 2M) with ct-DNA, mainly based on intercalation. Only the monocation 1M showed a pronounced fluorescent selectivity between various DNAs and RNAs, in contrast to the less selective 2M. Neutral, monopyridine analogue 1 binds to DNA upon protonation at pH 5 (biorelevant because of tumor tissues acidity), with increase in pyrene excimer emission. Biological studies on the lung tumor cell line (A549) indicated for 1, 1M, and 2M a significant increase in cytotoxicity upon illumination, which was explained by the singlet oxygen generation and the consequent intense action of ROS species. New compounds with an intense fluorescent response and photo-induced bioactivity are promising candidates for new theranostic agents.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Biologija
POVEZANOST RADA
Ustanove:
Institut "Ruđer Bošković", Zagreb
Profili:
Ivo Piantanida
(autor)
Dragomira Majhen
(autor)
Ksenija Božinović
(autor)
Marta Jurković
(autor)