manassantin b/saururus

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Manassantin B isolated from Saururus chinensis inhibits cyclooxygenase-2-dependent prostaglandin D2 generation by blocking Fyn-mediated nuclear factor-kappaB and mitogen activated protein kinase pathways in bone marrow derived-mast cells.

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The authors investigated the effect of manassantin B (Man B) isolated from Saururus chinensis (S. chinensis) on cyclooxygenase-2 (COX-2)-dependent prostaglandin D2 (PGD2) generation in mouse bone marrow derived-mast cells (BMMCs). Man B inhibited the generation of PGD2 dose-dependently by inhibiting

The mTOR Inhibitor Manassantin B Reveals A Crucial Role of mTORC2 Signaling in Epstein-Barr Virus Reactivation.

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Lytic replication of Epstein-Barr virus (EBV) is not only essential for its cell-to-cell spread and host-to-host transmission, but also contributes to EBV-induced oncogenesis. Thus, blocking EBV lytic replication could be a strategy for managing EBV-associated diseases. Previously we identified a

Effect of manassantin B, a lignan isolated from Saururus chinensis, on lipopolysaccharide-induced interleukin-1β in RAW 264.7 cells.

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BACKGROUND Elevated systemic levels of pro-inflammatory cytokines cause hypotension during septic shock and induce capillary leakage in acute lung injury. Manassantin B has anti-inflammatory and anti-plasmoidal properties. This study examined the effects of manassantin B on lipopolysaccharide

Inhibition of NF-IL6 activity by manassantin B, a dilignan isolated from Saururus chinensis, in phorbol myristate acetate-stimulated U937 promonocytic cells.

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Mannasantin B, a dilignan structurally related to manssantin A, is an inhibitor of NF-kappaB transactivation. In the present study, we found that it inhibited PMA-induced expression of IL-1beta, IL-1beta mRNA, and IL-1beta promoter activity in U937 cells with IC50 values of about 50 nM. It also

The dineolignan from Saururus chinensis, manassantin B, inhibits tumor-induced angiogenesis via downregulation of matrix metalloproteinases 9 in human endothelial cells.

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Manassantin B (MB) is a neolignan isolated from Saururus chinensis that exhibits a range of activities, including anti-inflammatory, antiseptic and antitumor activity. MB was recently found to affect cell adhesion and expression of several adhesion molecules. Based on the important roles of these

Molecular-targeted antitumor agents: the Saururus cernuus dineolignans manassantin B and 4-O-demethylmanassantin B are potent inhibitors of hypoxia-activated HIF-1.

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The transcription factor hypoxia-inducible factor-1 (HIF-1) is a key regulator of tumor cell adaptation and survival under hypoxic conditions. Selective HIF-1 inhibitors represent an important new class of potential molecular-targeted antitumor therapeutic agents. Extracts of plants and marine

Manassantin B inhibits melanosome transport in melanocytes by disrupting the melanophilin-myosin Va interaction.

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Human skin hyperpigmentation disorders occur when the synthesis and/or distribution of melanin increases. The distribution of melanin in the skin is achieved by melanosome transport and transfer. The transport of melanosomes, the organelles where melanin is made, in a melanocyte precedes the

Manassantin B shows antiviral activity against coxsackievirus B3 infection by activation of the STING/TBK-1/IRF3 signalling pathway.

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Coxsackievirus B3 (CVB3) is an important human pathogen associated with the development of acute pancreatitis, myocarditis, and type 1 diabetes. Currently, no vaccines or antiviral therapeutics are approved for the prevention and treatment of CVB3 infection. We found that Saururus chinensis Baill

Protective effect of lignans against sepsis from the roots of Saururus chinensis.

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In the course of isolating preventive agents from sepsis based on the in vivo assay model from the EtOAc extract of the roots of Saururus chinensis, twelve lignans, sarisan (1), erythro-austrobailignan-6 (2), meso-dihydroguaiaretic acid (3), saucerneol B (4), manassantin B (5), manassantin A (6),

A new dineolignan from Saururus chinensis root.

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A new tetrahydrofuradineolignan, called 4-O-demethylmanassantin A (1) was isolated from underground parts of Saururus chinensis together with three known dineolignans, 4-O-demethylmanassantin B (2), manassantin A (3) and manassantin B (4).

Immunosuppressive lignans isolated from Saururus chinensis.

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Bioactivity-guided fractionation of Saururus chinensis (Saururaceae) using a lymphoproliferation assay led us to isolate 5 lignans (compounds 1 - 5). Compounds 1 - 5 were identified as sauchinone, (-)-saucerneol, saucerneol C, manassantin A, and manassantin B, respectively, by spectroscopic

Inhibition of DNA topoisomerases I and II and cytotoxicity by lignans from Saururus chinensis.

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Thirteen lignans, erythro-austrobailignan-6 (1), meso-dihydroguaiaretic acid (2), sauchinone (3), 1'-epi-sauchinone (4), saucerneol D (5), manassantin B (6), manassantin A (7), nectandrin B (8), machilin D (9), saucerneol F (10), saucerneol G (11), saucerneol H (12) and saucerneol I (13), were

Human ACAT-1 and -2 inhibitory activities of saucerneol B, manassantin A and B isolated from Saururus chinensis.

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The sesquineolignan, saucerneol B (1), and dineolignans, manassantin A (2), and manassantin B (3), were isolated from the methanol extracts of Saururus chinensis root and elucidated by their spectroscopic data analysis. Compounds 1-3 inhibited hACAT-1 and hACAT-2 with IC(50) values of 43.0 and 124.0

Lignans from Saururus chinensis inhibiting the transcription factor NF-kappaB.

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The sesquineolignans, saucerneol D and saucerneol E were isolated from the roots of Saururus chinensis together with four known lignans, manassantin A, manassantin B, (-)-saucerneol methyl ether, and (+)-saucernetin. Structure elucidation was based on the analysis of spectroscopic data and

Potential antiviral lignans from the roots of Saururus chinensis with activity against Epstein-Barr virus lytic replication.

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Epstein-Barr virus (EBV) is a member of the γ-herpes virus subfamily and has been implicated in the pathogenesis of several human malignancies. Bioassay-guided fractionation was conducted on an EtOAc-soluble extract of the roots of Saururus chinensis and monitored using an EBV lytic replication

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