Research output: Contribution to journal › Article › peer-review
Design, Synthesis, and Biological Investigation of Novel Classes of 3-Carene-Derived Potent Inhibitors of TDP1. / Il'ina, Irina V.; Dyrkheeva, Nadezhda S.; Zakharenko, Alexandra L. et al.
In: Molecules (Basel, Switzerland), Vol. 25, No. 15, 3496, 08.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Design, Synthesis, and Biological Investigation of Novel Classes of 3-Carene-Derived Potent Inhibitors of TDP1
AU - Il'ina, Irina V.
AU - Dyrkheeva, Nadezhda S.
AU - Zakharenko, Alexandra L.
AU - Sidorenko, Alexander Yu
AU - Li-Zhulanov, Nikolay S.
AU - Korchagina, Dina V.
AU - Chand, Raina
AU - Ayine-Tora, Daniel M.
AU - Chepanova, Arina A.
AU - Zakharova, Olga D.
AU - Ilina, Ekaterina S.
AU - Reynisson, Jóhannes
AU - Malakhova, Anastasia A.
AU - Medvedev, Sergey P.
AU - Zakian, Suren M.
AU - Volcho, Konstantin P.
AU - Salakhutdinov, Nariman F.
AU - Lavrik, Olga I.
PY - 2020/8
Y1 - 2020/8
N2 - Two novel structural types of tyrosyl-DNA phosphodiesterase 1 (TDP1) inhibitors with hexahydroisobenzofuran 11 and 3-oxabicyclo [3.3.1]nonane 12 scaffolds were discovered. These monoterpene-derived compounds were synthesized through preliminary isomerization of (+)-3-carene to (+)-2-carene followed by reaction with heteroaromatic aldehydes. All the compounds inhibit the TDP1 enzyme at micro- and submicromolar levels, with the most potent compound having an IC50 value of 0.65 μM. TDP1 is an important DNA repair enzyme and a promising target for the development of new chemosensitizing agents. A panel of isogenic clones of the HEK293FT cell line knockout for the TDP1 gene was created using the CRISPR-Cas9 system. Cytotoxic effects of topotecan (Tpc) and non-cytotoxic compounds of the new structures were investigated separately and jointly in the TDP1 gene knockout cells. For two TDP1 inhibitors, 11h and 12k, a synergistic effect was observed with Tpc in the HEK293FT cells but was not found in TDP1 -/- cells. Thus, it is likely that the synergistic effect is caused by inhibition of TDP1. Synergy was also found for 11h in other cancer cell lines. Thus, sensitizing cancer cells using a non-cytotoxic drug can enhance the efficacy of currently used pharmaceuticals and, concomitantly, reduce toxic side effects.
AB - Two novel structural types of tyrosyl-DNA phosphodiesterase 1 (TDP1) inhibitors with hexahydroisobenzofuran 11 and 3-oxabicyclo [3.3.1]nonane 12 scaffolds were discovered. These monoterpene-derived compounds were synthesized through preliminary isomerization of (+)-3-carene to (+)-2-carene followed by reaction with heteroaromatic aldehydes. All the compounds inhibit the TDP1 enzyme at micro- and submicromolar levels, with the most potent compound having an IC50 value of 0.65 μM. TDP1 is an important DNA repair enzyme and a promising target for the development of new chemosensitizing agents. A panel of isogenic clones of the HEK293FT cell line knockout for the TDP1 gene was created using the CRISPR-Cas9 system. Cytotoxic effects of topotecan (Tpc) and non-cytotoxic compounds of the new structures were investigated separately and jointly in the TDP1 gene knockout cells. For two TDP1 inhibitors, 11h and 12k, a synergistic effect was observed with Tpc in the HEK293FT cells but was not found in TDP1 -/- cells. Thus, it is likely that the synergistic effect is caused by inhibition of TDP1. Synergy was also found for 11h in other cancer cell lines. Thus, sensitizing cancer cells using a non-cytotoxic drug can enhance the efficacy of currently used pharmaceuticals and, concomitantly, reduce toxic side effects.
KW - carene
KW - inhibitor
KW - monoterpene
KW - synergy
KW - TDP1 gene knockout cells
KW - topotecan
KW - tyrosyl-DNA phosphodiesterase 1
KW - ISOMERIZATION
KW - TYROSYL-DNA PHOSPHODIESTERASE
KW - GENOME
KW - TDP1gene knockout cells
KW - IMPACT
KW - VAPOR-PHASE
UR - http://www.scopus.com/inward/record.url?scp=85089133050&partnerID=8YFLogxK
U2 - 10.3390/molecules25153496
DO - 10.3390/molecules25153496
M3 - Article
C2 - 32751997
AN - SCOPUS:85089133050
VL - 25
JO - Molecules
JF - Molecules
SN - 1420-3049
IS - 15
M1 - 3496
ER -
ID: 24953716