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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(induce) |
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| IL-12, an antitumor cytokine is considered to be a promising cytokine for enhancing an antitumor immune response. Interleukin-12 (IL-12) is a cytokine that plays a crucial role in the immune response, particularly in the activation of T cells and natural killer (NK) cells. It is produced by various immune cells, including macrophages and dendritic cells, and is known for its ability to promote the differentiation of T cells into a type that can effectively combat cancer cells. IL-12 is often expressed in various cancers, including melanoma, renal cell carcinoma, breast cancer, and colorectal cancer. Its expression can vary depending on the tumor type and the immune context. Tumor-infiltrating immune cells, particularly activated macrophages and dendritic cells, are significant sources of IL-12 in the tumor microenvironment. IL-12 is primarily known for its role in promoting anti-tumor immunity. It enhances the differentiation of naive T cells into T helper 1 (Th1) cells, which produce pro-inflammatory cytokines and support cytotoxic T cell responses. IL-12 also stimulates the activity of NK cells, enhancing their ability to kill tumor cells and produce additional cytokines, such as interferon-gamma (IFN-γ), which further promotes anti-tumor immunity. Low levels of IL-12 in the tumor microenvironment are often associated with poor anti-tumor immune responses and can correlate with worse clinical outcomes. In such cases, strategies to enhance IL-12 production or signaling may be beneficial for improving anti-tumor immunity. |
| 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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