Phytochemical Name : Pyranocycloartobiloxanthone A (PA)

Properties Information
PhytoCAT-ID PhytoCAT-1016
Phytochemical name or plant extracts Pyranocycloartobiloxanthone A (PA)
PMID 22739412
Literature evidence High content screening (HCS) was used to observe the nuclear condensation, cell permeability, mitochondrial membrane potential (MMP) and cytochrome c release.
IUPAC name 12,19,22,24-tetrahydroxy-8,8,18-trimethyl-3,9,20-trioxahexacyclo[15.7.1.0²,¹⁵.0⁴,¹³.0⁵,¹⁰.0²¹,²⁵]pentacosa-1(25),2(15),4,6,10,12,21,23-octaen-14-one
Phytochemicals’ class or type of plant extracts Xanthone
Source of phytochemicals or plant Extracts Artocarpus obtusus
Geographical availability Borneo
Plant parts Stem
Other cancers Breast cancer
Target gene or protein Bax, Bcl-2
Gene or Protein evidence Treatment of MCF7 cells with PA induced apoptosis with cell death-transducing signals, that regulate the MMP by down-regulation of Bcl2 and up-regulation of Bax, triggering the cytochrome c release from mitochondria to cytosol. The release of cytochrome c triggered the activation of caspases-9, then activates downstream executioner caspase-3/7 and consequently cleaved specific substrates leading to apoptotic changes.
Target pathways NF-κB and Bcl2/Bax signaling pathways
IC50 At 24h, 48h: 3.5 ± 0.50 μg/ml, 1.4 ± 0.21 μg/ml against MCF-7 respectively
Potency Pyranocycloartobiloxanthone A (1) showed strong free radical scavenging activity by using DPPH assay as well as cytotoxicity towards K562, HL-60, and MCF7 cell lines.
Cell line/ mice model MCF-7, K562, HL-60
Additional information  Treatment with PA significantly decreased nuclear area, cell morphology, cell membrane permeability as shown by the multiparameter apoptosis analysis. Due to the ability in activation of cellular apoptotic program directly, mitochondria have been described to play a central role in the apoptotic process .
PubChem ID 46216999
Additional PMIDs 20390751
Additional sources of information https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:582631-1
Safety NA