neolignan/breast neoplasms

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Asperjinone, a nor-neolignan, and terrein, a suppressor of ABCG2-expressing breast cancer cells, from thermophilic Aspergillus terreus.

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Breast cancer cells express ABCG2 transporters, which mediate multidrug resistance. Discovering a novel compound that can suppress ABCG2 expression and restore drug sensitivity could be the key to improving breast cancer therapeutics. In the current work, one new nor-neolignan, asperjinone (1), as

Induction of apoptosis by VB1 in breast cancer cells: the role of reactive oxygen species and Bcl-2 family proteins.

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We have previously reported that the EVn-50 mixture of vitexins (lignan compounds) containing the purified vitexin (neolignan) compound, 6-hydroxy-4(4-hydroxy-3-methoxyphenyl)-3-hydroxymethyl‑7-methoxy-3,4-dihydro-2-naphthaldehyde, termed VB1, exhibits potent anticancer activity through the

New neolignans from the seeds of Myristica fragrans and their cytotoxic activities.

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Three new dihydrobenzofuran neolignans, myticaganal A-C (1-3), along with five known compounds (4-8), were isolated from the seeds of Myristica fragrans. Their structures were elucidated by extensive spectroscopic analysis. In vitro cytotoxic activities of the isolated compounds against three human

Bishonokiol A Induces Multiple Cell Death in Human Breast Cancer MCF-7 Cells.

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A dimeric neolignan, bishonokiol A (BHNKA) isolated from Magnolia grandiflora, significantly inhibits the proliferation of human breast cancer cells. However, the exact mechanism of BHNKA induced breast cancer cell death is unknown. In this study, we investigated the pharmacological

Down-regulation of c-Src/EGFR-mediated signaling activation is involved in the honokiol-induced cell cycle arrest and apoptosis in MDA-MB-231 human breast cancer cells.

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Honokiol is a naturally occurring neolignan abundant in Magnoliae Cortex and has showed anti-proliferative and pro-apoptotic effects in a wide range of human cancer cells. However, the molecular mechanisms on the anti-proliferative activity in cancer cells have been poorly elucidated. In this study,

Lignans and Neolignans: Plant secondary metabolites as a reservoir of biologically active substances.

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Lignans and neolignans are plant secondary metabolites derived from the oxidative coupling of phenylpropanoids. Biological activity of these phenolic compounds ranges from antioxidant, antitumor (terminaloside P, IC₅₀ = 10 nM), anti-inflammatory, anti-neurodegenerative (schibitubin B,

Synthesis of neolignans as microtubule stabilisers.

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Tubulin is a well established target for anticancer drug development. Lignans and neolignans were synthesized as tubulin interacting agents. Neolignans 10 and 19 exhibited significant anticancer activity against MCF-7 and MDAMB-231 human breast cancer cell lines. Both the compounds effectively

Bishonokiol A inhibits breast cancer cell invasion and migration by suppressing hypoxia inducible factor-1α.

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Hypoxia inducible factor-1α (HIF-1α) plays a central role in cell survival, invasion, metastasis and angiogenesis, and also is emerging as an important target in anti-cancer drug discovery. In the present study, bishonokiol A, a dimeric neolignan isolated from Magnolia grandiflora, was identified as

Pharbilignan C induces apoptosis through a mitochondria-mediated intrinsic pathway in human breast cancer cells.

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Pharbitidis Semen, the seed of Morning glory (Pharbitis nil), is a medicinal agent that has traditionally been used as a purgative in Korea. Pharbilignan C (PLC) is a dihydro[b]-benzofuran-type neolignan from Pharbitidis Semen, which reportedly exhibited the most potent cytotoxicity against human

Antiproliferative lactams and spiroenone from adlay bran in human breast cancer cell lines.

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Two new lactams, coixspirolactam D (1) and coixspirolactam E (2), and a new spiroenone, coixspiroenone (3), together with seven known compounds, coixspirolactam A (4), coixspirolactam B (5), coixspirolactam C (6), coixlactam (7), coixol (8), ethyl dioxindole-3-acetate (9), and isoindol-1-one (10),

In vitro and in vivo anticancer activity of extracts, fractions, and eupomatenoid-5 obtained from Piper regnellii leaves.

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Despite numerous studies with the Piper genus, there are no previous results reporting in vitro or in vivo Piper regnellii (Miq.) C. DC. var. regnellii anticancer activity. The aim of this study was to investigate P. regnellii in vitro and in vivo anticancer activity and further identify its active

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