Saffron, derived from the stigma of Crocus sativus L., has been utilized for millennia as a culinary spice, natural dye, and traditional medicine. Its extensive history of use spans cultures across Asia, the Middle East, and Europe, where it was historically prescribed for respiratory ailments, mood disorders, inflammation, and cardiovascular diseases. In modern scientific research, saffron’s bioactive constituents—particularly crocin and crocetin—have gained attention for their potent anti-cancer properties. While prior studies have predominantly focused on saffron’s ability to inhibit primary tumor growth through induction of apoptosis and cell cycle arrest, its potential to suppress metastasis—the leading cause of cancer-related mortality—has only recently emerged as a significant area of investigation. This review presents a comprehensive synthesis of current evidence on saffron’s anti-metastatic effects, highlighting its capacity to hinder cancer cell migration, invasion, angiogenesis, and epithelial-mesenchymal transition (EMT), along with the underlying molecular pathways involved.PDGFR Antibody Autophagy
Extensive in vitro and in vivo studies demonstrate that saffron and its carotenoids effectively impede key steps in the metastatic cascade. In colorectal cancer models, saffron extract significantly reduced the migration of MACC1-expressing SW620 and SW480/MACC1 cells in a dose- and MACC1-dependent manner. Notably, this effect was absent in MACC1-knockout variants, suggesting a specific interaction with this metastasis-promoting oncogene. The anti-migratory activity is mediated through downregulation of doublecortin-like kinase 1 (DCLK1), a protein implicated in tumor initiation and metastatic spread. Similarly, in prostate cancer cell lines PC3 and 22rv1, saffron suppressed both migration and invasion by inhibiting matrix metalloproteinases (MMP2, MMP9) and urokinase-type plasminogen activator (uPA), enzymes essential for extracellular matrix degradation. Additionally, saffron reversed EMT by upregulating epithelial markers (E-cadherin) and downregulating mesenchymal markers (N-cadherin, β-catenin, vimentin), thereby enhancing cell-cell adhesion and reducing motility. Animal studies confirmed these findings: xenograft mice treated with saffron exhibited smaller tumors, fewer blood vessels, delayed tumor progression, and improved survival compared to controls.
In breast cancer, saffron aqueous extract exerted anti-angiogenic effects by reducing expression of vascular endothelial growth factor receptor 2 (VEGFR2), VEGF-A, and MMPs—key regulators of new blood vessel formation. These effects were further amplified when combined with low-frequency electromagnetic fields, indicating synergistic potential. A limited clinical trial involving patients with liver metastases reported higher response rates and lower mortality in those receiving saffron supplementation, underscoring its translational relevance. Saffron also demonstrated protective effects against hepatotoxicity and bladder damage in animal models, reinforcing its safety profile at therapeutic doses.DCX Antibody medchemexpress
The anti-metastatic potency of saffron is attributed to multiple interconnected mechanisms.PMID:34749401 It modulates signaling pathways such as Wnt/β-catenin, Ras/ERK, P38 MAPK, and DCLK1, all of which are dysregulated in advanced cancers. Moreover, saffron reduces CD34-positive endothelial progenitor cells, a marker associated with angiogenesis, thereby limiting tumor vascularization. Importantly, the observed anti-metastatic effects occur at non-toxic concentrations, well below those required for cytotoxicity, placing them within safe dietary intake levels.
These findings collectively position saffron not merely as a functional food but as a promising candidate for integrative cancer therapy. Its favorable bioavailability, low toxicity to normal cells, and multi-targeted action make it an ideal adjunctive agent in preventing or delaying metastasis. Future research should focus on clinical validation, formulation optimization, and exploration of synergies with conventional chemotherapeutics to fully harness saffron’s anti-metastatic potential.MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. We have professionally experienced and friendly staff to meet your needs. We are a competent and trustworthy partner for your research and scientific projects.Related websites: https://www.medchemexpress.com
