2016
DOI: 10.1002/iub.1481
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The phenomenon of acquired resistance to metformin in breast cancer cells: The interaction of growth pathways and estrogen receptor signaling

Abstract: Metformin, a biguanide antidiabetic drug, is used to decrease hyperglycemia in patients with type 2 diabetes. Recently, the epidemiological studies revealed the potential of metformin as an anti-tumor drug for several types of cancer, including breast cancer. Anti-tumor metformin action was found to be mediated, at least in part, via activation of adenosine monophosphate-activated protein kinase (AMPK)-intracellular energy sensor, which inhibits the mammalian target of rapamycin (mTOR) and some other signaling… Show more

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Cited by 55 publications
(50 citation statements)
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“…Because ERα interacts with the α-catalytic subunit of the central energy sensor AMP-activated protein kinase (AMPK), 61 whereas the substrate accumulation but not end-product depletion of fatty acids from FASN inhibition triggers AMPK activation, 62, 63 our findings might implicate de novo lipogenesis operating as a bona fide metabolic signal transmitter, 64 regulating breast cancer cell sensitivity not only to E 2 but also to antiestrogen therapies. 65, 66 …”
Section: Discussionmentioning
confidence: 99%
“…Because ERα interacts with the α-catalytic subunit of the central energy sensor AMP-activated protein kinase (AMPK), 61 whereas the substrate accumulation but not end-product depletion of fatty acids from FASN inhibition triggers AMPK activation, 62, 63 our findings might implicate de novo lipogenesis operating as a bona fide metabolic signal transmitter, 64 regulating breast cancer cell sensitivity not only to E 2 but also to antiestrogen therapies. 65, 66 …”
Section: Discussionmentioning
confidence: 99%
“…Было обнаружено, что такие клетки, обозначенные нами как MCF-7 / М, отличаются, наряду с активацией не-которых сигнальных путей (PI3K / Akt, Snail1), замет-ным снижением транскрипционной активности ре-цептора эстрогена и, соответственно, частичной резистентностью к антипролиферативному действию антиэстрогенов [7].…”
Section: экспериментальные статьиunclassified
“…Как уже отмечалось, исходная сублиния MCF-7 / M, резистентная к метформину, отличается перекрестной резистентностью к метформину и тамок-сифену. Этот эффект предположительно связан с по-давлением активности рецептора эстрогенов в клетках MCF-7 / M [7]. Мы обнаружили, что клетки MCF-7 с резистентностью к метформину, приобретенной в процессе кокультивирования с клетками MCF-7 / M, также характеризуются перекрестной резистентностью к тамоксифену (рис.…”
Section: результатыunclassified
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