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| Copper Metal Copper levels are considerably elevated in various malignancies. Copper [Cu(II)] is a transition and trace element in living organisms. It increases reactive oxygen species (ROS) and free-radical generation that might damage biomolecules like DNA, proteins, and lipids. Copper (dietary/physiology) ≠ copper-loading therapeutics ≠ copper nanoparticles. For Cu nanoparticles, the dominant and most reproducible theme is toxicity via ROS → mitochondrial damage/genotoxicity, not clean tumor selectivity. - Copper acts as a critical cofactor for numerous enzymes involved in redox reactions, energy production, and connective tissue formation. - Increased copper levels in the tumor microenvironment can enhance angiogenic signaling and thus supply the tumor with necessary oxygen and nutrients, facilitating tumor growth and metastasis. - Copper can participate in redox cycling reactions, similar to the Fenton reaction, leading to the production of reactive oxygen species (ROS). - Cancer cells often exhibit altered copper homeostasis, with some studies showing elevated copper levels in tumor tissues relative to normal tissues. Two main approaches are: - Copper Chelation: Drugs that bind copper (chelators) can reduce the bioavailability of copper, potentially inhibiting angiogenesis and other copper-dependent tumor processes. - Copper Ionophores: These agents facilitate the transport of copper into cancer cells to induce cytotoxicity by elevating intracellular copper levels beyond a tolerable threshold, leading to cell death. - Depletion of glutathione and stimulation of lipid peroxidation, catalase and superoxide dismutase. - Studies have shown that the level of copper in tumour cells and blood serum from cancer patients is elevated, and the conclusion is that cancer cells need more copper than healthy cells. (but also sometimes depleted). - Copper is a double-edged sword, maintaining normal cell development and promoting tumor development. - Tumor tissue has a higher demand for copper and is more susceptible to copper homeostasis, copper may modulate cancer cell survival through reactive oxygen species (ROS) excessive accumulation, proteasome inhibition and anti-angiogenesis. Natural Product: Cu, Copper (ion biology)
Time-Scale Flag (TSF): P / R / G
Copper Nanoparticles: CuNP / CuO-NP (tox + “anticancer” claims are mostly preclinical)
Time-Scale Flag (TSF): P / R / G
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| Cancer Stem Cells Phytochemicals (natural plant-derived compounds) that may affect CSCs: Curcumin — suppresses self-renewal and pathways (Wnt/Notch/Hedgehog). Resveratrol — shown to reduce CSC populations and sphere formation in multiple models. Sulforaphane (from broccoli sprouts) — reported to inhibit CSC properties and pathways; active in vitro and in vivo. EGCG (epigallocatechin-3-gallate, green tea) — reduces CSC markers and sphere formation in several cancer types. Quercetin — reported to inhibit CSC proliferation, self-renewal and invasiveness (breast, endometrial, others). Berberine — shown to suppress CSC “stemness” and reduce tumorigenic properties in multiple models. Genistein (soy isoflavone) — decreases CSC markers, sphere formation and stemness signaling in prostate/breast/other models. Honokiol (Magnolia bark) — shown to eliminate or suppress CSC-like populations in oral, colon, glioma models. Luteolin — inhibits stemness/EMT and reduces CSC markers and self-renewal in breast, prostate and other models. Withaferin A (from Withania somnifera / ashwagandha) — multiple preclinical reports show WA targets CSCs and reduces tumor growth/metastasis in models. Circadian disruption in cancer and regulation of cancer stem cells by circadian clock genes: An updated review Potential Role of the Circadian Clock in the Regulation of Cancer Stem Cells and Cancer Therapy Can we utilise the circadian clock to target cancer stem cells? |
| 5012- | DSF, | Cu, | Advancing Cancer Therapy with Copper/Disulfiram Nanomedicines and Drug Delivery Systems |
| 4916- | DSF, | Cu, | The immunomodulatory function and antitumor effect of disulfiram: paving the way for novel cancer therapeutics |
| - | Review, | Var, | NA |
| 4915- | DSF, | Cu, | Disulfiram: A novel repurposed drug for cancer therapy |
| - | Review, | Var, | NA |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
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