ZFIN ID: ZDB-PUB-200104-7
Phytochemicals inhibit migration of triple negative breast cancer cells by targeting kinase signaling
Shahi Thakuri, P., Gupta, M., Singh, S., Joshi, R., Glasgow, E., Lekan, A., Agarwal, S., Luker, G.D., Tavana, H.
Date: 2020
Source: BMC cancer   20: 4 (Journal)
Registered Authors: Glasgow, Eric
Keywords: Cell migration, Invasion, Metastasis, Phytochemical, Protein kinases, TNBC
MeSH Terms:
  • Animals
  • Antineoplastic Agents, Phytogenic/chemistry
  • Antineoplastic Agents, Phytogenic/pharmacology*
  • Cell Line, Tumor
  • Cell Movement/drug effects
  • Cell Proliferation/drug effects
  • Cell Survival/drug effects
  • Female
  • Humans
  • Phytochemicals/chemistry
  • Phytochemicals/pharmacology*
  • Protein Kinase Inhibitors/chemistry
  • Protein Kinase Inhibitors/pharmacology*
  • Proteome
  • Proteomics/methods
  • Signal Transduction/drug effects
  • Triple Negative Breast Neoplasms/metabolism
  • Zebrafish
PubMed: 31898540 Full text @ BMC Cancer
Cell migration and invasion are essential processes for metastatic dissemination of cancer cells. Significant progress has been made in developing new therapies against oncogenic signaling to eliminate cancer cells and shrink tumors. However, inherent heterogeneity and treatment-induced adaptation to drugs commonly enable subsets of cancer cells to survive therapy. In addition to local recurrence, these cells escape a primary tumor and migrate through the stroma to access the circulation and metastasize to different organs, leading to an incurable disease. As such, therapeutics that block migration and invasion of cancer cells may inhibit or reduce metastasis and significantly improve cancer therapy. This is particularly more important for cancers, such as triple negative breast cancer, that currently lack targeted drugs.
We used cell migration, 3D invasion, zebrafish metastasis model, and phosphorylation analysis of 43 protein kinases in nine triple negative breast cancer (TNBC) cell lines to study effects of fisetin and quercetin on inhibition of TNBC cell migration, invasion, and metastasis.
Fisetin and quercetin were highly effective against migration of all nine TNBC cell lines with up to 76 and 74% inhibitory effects, respectively. In addition, treatments significantly reduced 3D invasion of highly motile TNBC cells from spheroids into a collagen matrix and their metastasis in vivo. Fisetin and quercetin commonly targeted different components and substrates of the oncogenic PI3K/AKT pathway and significantly reduced their activities. Additionally, both compounds disrupted activities of several protein kinases in MAPK and STAT pathways. We used molecular inhibitors specific to these signaling proteins to establish the migration-inhibitory role of the two phytochemicals against TNBC cells.
We established that fisetin and quercetin potently inhibit migration of metastatic TNBC cells by interfering with activities of oncogenic protein kinases in multiple pathways.