Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells

Our previous studies demonstrated that cycleanine, a macrocyclic bisbenzylisoquinoline (BBIQ) alkaloid, showed potent anti-ovarian cancer activity via apoptosis induction. Here, we synthesized two novel (aminoalkyl)cycleanine analogues (2 and 3) through a simple and efficient two-step reaction start...

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Main Authors: Uche, F, McCullagh, J, Claridge, T, Richardson, A, Li, W
Format: Journal article
Published: Elsevier 2018
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author Uche, F
McCullagh, J
Claridge, T
Richardson, A
Li, W
author_facet Uche, F
McCullagh, J
Claridge, T
Richardson, A
Li, W
author_sort Uche, F
collection OXFORD
description Our previous studies demonstrated that cycleanine, a macrocyclic bisbenzylisoquinoline (BBIQ) alkaloid, showed potent anti-ovarian cancer activity via apoptosis induction. Here, we synthesized two novel (aminoalkyl)cycleanine analogues (2 and 3) through a simple and efficient two-step reaction starting from cycleanine isolated from Triclisia subcordata Oliv. These analogues showed greater potency than the unmodified cycleanine in three human ovarian cancer cell lines. Both 2 and 3 induced apoptosis in ovarian cancer cells by activations of caspases 3/7, cleavage of PARP, increase in subG1 cell cycle phase and in the percentage of apoptotic cells. Further confocal fluorescence microscopy analysis confirmed the cellular uptake of alkaloids in ovarian cancer cells by using the unique (alkynyl)cycleanine (3) via click chemistry reaction. Our results suggest that cycleanine could be a hit compound for the future development in attacking ovarian cancer.
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spelling oxford-uuid:2cd3960b-8fcf-4081-b887-76bcb72ceec22022-03-26T12:39:16ZSynthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2cd3960b-8fcf-4081-b887-76bcb72ceec2Symplectic Elements at OxfordElsevier2018Uche, FMcCullagh, JClaridge, TRichardson, ALi, WOur previous studies demonstrated that cycleanine, a macrocyclic bisbenzylisoquinoline (BBIQ) alkaloid, showed potent anti-ovarian cancer activity via apoptosis induction. Here, we synthesized two novel (aminoalkyl)cycleanine analogues (2 and 3) through a simple and efficient two-step reaction starting from cycleanine isolated from Triclisia subcordata Oliv. These analogues showed greater potency than the unmodified cycleanine in three human ovarian cancer cell lines. Both 2 and 3 induced apoptosis in ovarian cancer cells by activations of caspases 3/7, cleavage of PARP, increase in subG1 cell cycle phase and in the percentage of apoptotic cells. Further confocal fluorescence microscopy analysis confirmed the cellular uptake of alkaloids in ovarian cancer cells by using the unique (alkynyl)cycleanine (3) via click chemistry reaction. Our results suggest that cycleanine could be a hit compound for the future development in attacking ovarian cancer.
spellingShingle Uche, F
McCullagh, J
Claridge, T
Richardson, A
Li, W
Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title_full Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title_fullStr Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title_full_unstemmed Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title_short Synthesis of (aminoalkyl)cycleanine analogues: cytotoxicity, cellular uptake, and apoptosis induction in ovarian cancer cells
title_sort synthesis of aminoalkyl cycleanine analogues cytotoxicity cellular uptake and apoptosis induction in ovarian cancer cells
work_keys_str_mv AT uchef synthesisofaminoalkylcycleanineanaloguescytotoxicitycellularuptakeandapoptosisinductioninovariancancercells
AT mccullaghj synthesisofaminoalkylcycleanineanaloguescytotoxicitycellularuptakeandapoptosisinductioninovariancancercells
AT claridget synthesisofaminoalkylcycleanineanaloguescytotoxicitycellularuptakeandapoptosisinductioninovariancancercells
AT richardsona synthesisofaminoalkylcycleanineanaloguescytotoxicitycellularuptakeandapoptosisinductioninovariancancercells
AT liw synthesisofaminoalkylcycleanineanaloguescytotoxicitycellularuptakeandapoptosisinductioninovariancancercells