Phytochemical Name : Shikonin

Properties Information
PhytoCAT-ID PhytoCAT-1868
Phytochemical name or plant extracts Shikonin
PMID 26496737
Literature evidence RIP1K and RIP3K provoked by shikonin induce cell cycle arrest in the triple negative breast cancer cell line, MDA-MB-468: necroptosis as a desperate programmed suicide pathway.
IUPAC name 5,8-dihydroxy-2-[(1R)-1-hydroxy-4-methylpent-3-enyl]naphthalene-1,4-dione
Phytochemicals’ class or type of plant extracts Quinone
Source of phytochemicals or plant Extracts Lithospermum erythrorhizon
Geographical availability Amur, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia, Japan, Korea, Manchuria, Primorye, Yakutskiya
Plant parts Root
Other cancers Breast cancer
Target gene or protein DUSP1, DUSP2, ERα, GPER, EGFR, p-ERK, RIP1K, RIP3K, E-cadherin, N-cadherin, vimentin, Snail
Gene or Protein evidence Therefore, our results suggest that shikonin induces the expression of DUSP1 and DUSP2 which consequently switches off JNK and p38 MAPK pathways and causes cell cycle arrest and apoptosis in breast cancer cells. Furthermore, shikonin downregulated the expression of ERα and GPER, and this effect was not affected by the estrogen environment. In addition, shikonin downregulated the EGFR and p-ERK expression in MCF-7 and SK-BR-3, which was also not affected by the estrogen environment. RIP1K and RIP3K provoked by shikonin induce cell cycle arrest in the triple negative breast cancer cell line, MDA-MB-468: necroptosis as a desperate programmed suicide pathway. Shikonin depressed cell migration and invasion, upregulated E-cadherin levels, downregulated N-cadherin, vimentin, and Snail levels, and reorganized the cytoskeletal proteins F-actin and vimentin.
Target pathways GSK-3β-regulated suppression of β-catenin signaling. JNK and p38 MAPK pathways
IC50 10.3 μΜ against MCF-7 15.0 μΜ against SKBR-3 15.0 μΜ against MDA-MB-231
Potency the results revealed that shikonin potently decreased the viabilities of TNBC MDA-MB-231 and 4T1 cells but showed less cytotoxicity to normal mammary epithelial MCF-12A cells.
Cell line/ mice model MDA-MB-468, MDA-MB-231, MCF-7, SKBR-3
Additional information  An increase in the ROS levels and a reduction in mitochondrial membrane potential have been observed in the shikonin-treated cells. Cell death has mainly occurred through necroptosis with a significant increase in the RIP1K and RIP3K expressions, and characteristic morphological changes have been observed. In the presence of Nec-1, caspase-3 mediating apoptosis has occurred in the shikonin-treated cells.
PubChem ID 479503
Additional PMIDs 31071331 29422643 31545985
Additional sources of information https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:118039-1
Safety NA