Phytochemical Name : Schisandrin B

Properties Information
PhytoCAT-ID PhytoCAT-1180
Phytochemical name or plant extracts Schisandrin B
PMID 28827665
Literature evidence Our results showed that Sch B increased the intracellular accumulation of DOX through inhibiting expression and activity of P-glycoprotein (P-gp).
IUPAC name 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.02,7.014,18]nonadeca-1(19),2,4,6,12,14(18)-hexaene
Phytochemicals’ class or type of plant extracts Lignan
Source of phytochemicals or plant Extracts Schisandrae Chinensis
Geographical availability Amur, China North-Central, Inner Mongolia, Japan, Khabarovsk, Korea, Manchuria, Primorye, Sakhalin
Plant parts NA
Other cancers Breast cancer, Cervical cancer
Target gene or protein NOX4, TGF-β
Gene or Protein evidence Sch B suppresses TGF-β-induced and NOX4-associated ROS production in 4T1 cells and inhibits TGF-β-enhanced cell migration.
Target pathways NA
IC50 NA
Potency Meanwhile, Sch B was identified as a potent P-gp inhibitor and could enhance DOX-induced apoptosis in cancer cells, but not in primary rat cardiomyocytes and primary human fibroblasts
Cell line/ mice model 4T1, siha, MCF-7, A2780
Additional information  Furthermore, Sch B preferentially promoted chymotryptic activity of the proteasome in a concentration-dependent manner, and the proteasome inhibitor MG-132 prevented Sch B-induced survivin downregulation. Taken together, our findings suggest that Sch B could be a potential candidate for combating drug resistant cancer via modulating two key factors that responsible for cancer resistance.
PubChem ID 108130
Additional PMIDs 28827665 23688500
Additional sources of information https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60456331-2
Safety Schisandrin B (Sch B), a naturally occurring dibenzocyclooctadiene lignan with very low toxicity, is a novel NOX inhibitor and its IC50 toward NOX4 is 9.3μM