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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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| A radiosensitizer is an agent that makes cancer cells more sensitive to the damaging effects of radiation therapy. By using a radiosensitizer, clinicians aim to enhance the effectiveness of radiation treatment by either increasing the damage incurred by tumor cells or by interfering with the cancer cells’ repair mechanisms. This can potentially allow for lower doses of radiation, reduced side effects, or improved treatment outcomes. Pathways that help Radiosensitivity: downregulating HIF-1α, increase SIRT1, Txr List of Natural Products with radiosensitizing properties: -Curcumin:modulate NF-κB, STAT3 and has been shown in preclinical studies to enhance the effects of radiation by inhibiting cell survival pathways. -Resveratrol: -EGCG: -Quercetin: -Genistein: -Parthenolide: How radiosensitizers inhibit the thioredoxin (Trx) system in cellular contexts. Notable radiosensitizers, including: -gold nanoparticles (GNPs), -gold triethylphosphine cyanide ([Au(SCN) (PEt3)]), -auranofin, ceria nanoparticles (CONPs), -curcumin and its derivatives, -piperlongamide, -indolequinone derivatives, -micheliolide, -motexafin gadolinium, and -ethane selenide selenidazole derivatives (SeDs) |
| 1599- | Cu, | Copper in tumors and the use of copper-based compounds in cancer treatment |
| - | Review, | NA, | NA |
| 1596- | Cu, | CDT, | Unveiling the promising anticancer effect of copper-based compounds: a comprehensive review |
| - | Review, | NA, | NA |
| 5011- | DSF, | Cu, | Leveraging disulfiram to treat cancer: Mechanisms of action, delivery strategies, and treatment regimens |
| - | Review, | Var, | NA |
| 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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