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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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| Source: HalifaxProj(inhibit) CGL-CS TCGA |
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| Human malignancies frequently exhibit mutations in the TGF-β pathway, and overactivation of this system is linked to tumor growth by promoting angiogenesis and inhibiting the innate and adaptive antitumor immune responses. Anti-inflammatory cytokine. In normal tissues, TGF-β plays an essential role in cell cycle regulation, immune function, and tissue remodeling. - In early carcinogenesis, TGF-β typically acts as a tumor suppressor by inhibiting cell proliferation and inducing apoptosis. In advanced cancers, cells frequently become resistant to the growth-inhibitory effects of TGF-β. - TGF-β then switches roles and promotes tumor progression by stimulating epithelial-to-mesenchymal transition (EMT), cell invasion, metastasis, and immune evasion. Non-canonical (Smad-independent) pathways, such as MAPK, PI3K/Akt, and Rho signaling, also contribute to TGF-β-mediated responses. Elevated levels of TGF-β have been detected in many advanced-stage cancers, including breast, lung, colorectal, pancreatic, and prostate cancers. - The switch from a tumor-suppressive to a tumor-promoting role is often associated with increased TGF-β production and activation in the tumor microenvironment. High TGF-β expression or signaling activity is frequently correlated with aggressive disease features, resistance to therapy, increased metastasis, and poorer overall survival in many cancer types. |
| 1601- | Cu, | The copper (II) complex of salicylate phenanthroline induces immunogenic cell death of colorectal cancer cells through inducing endoplasmic reticulum stress |
| - | in-vitro, | CRC, | 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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