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| Spermidine : Polyamine (natural small molecule) Sources: Found in foods like wheat germ, soybeans, mushrooms, aged cheese, and fermented foods. Typical dietary intake is ~5–20 mg/day.Top food sources = wheat germ > soybeans > aged cheddar > mushrooms > rice bran/legumes. Ripening / fermentation: especially in aged or fermented foods like cheese, where spermidine and other polyamines can rise during ripening because microbial activity and protein breakdown contribute to amine formation. That is one reason aged cheeses can rank unusually high. Cooking: boiling and grilling significantly reduced polyamine content in many foods, whereas microwave and sous-vide tended to preserve more. Primary Actions: Autophagy induction, mild ROS modulation, epigenetic regulation, and modulation of polyamine metabolism. Pathway Effect of Spermidine Autophagy (ATG genes) ↑ Induction, Beclin-1 activation mTORC1 signaling ↓ Inhibition, promotes catabolic metabolism p53/p21 Modulation via epigenetic changes Polyamine metabolism Supports or stresses proliferating cells ROS / redox balance Mild modulation; sensitizes cancer cells to ROS stressContext-dependent risk: High spermidine levels might support tumor growth in polyamine-addicted cancers; dose, timing, and tumor type matter. Chemo interaction: Generally compatible; not expected to block ROS-dependent therapy at oral doses. Spermidine, a biogenic polyamine that declines along with aging, shows promise in restoring antitumor immunity by enhancing mitochondrial fatty acid oxidation (FAO) Spermidine — Cancer vs Normal Cell Effects
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| Lipid peroxidation is a chain reaction process in which free radicals (often reactive oxygen species, or ROS) attack lipids containing carbon-carbon double bonds, especially polyunsaturated fatty acids. This attack results in the formation of lipid radicals, peroxides, and subsequent breakdown products. Lipid peroxidation can cause damage to cell membranes, leading to increased permeability and disruption of cellular functions. This damage can initiate a cascade of events that may contribute to carcinogenesis. The byproducts of lipid peroxidation, such as malondialdehyde (MDA) and 4-hydroxynonenal (4-HNE), can form adducts with DNA, leading to mutations. These mutations can disrupt normal cellular processes and contribute to the development of cancer. Lipid peroxidation damages cell membranes, disrupts cellular functions, and can trigger inflammatory responses. It is a marker of oxidative stress and is implicated in many chronic diseases. Negative Prognostic Indicator: In many cancers, high levels of lipid phosphates, particularly S1P, are associated with poor prognosis, indicating a more aggressive tumor phenotype and potential resistance to therapy. Mixed Evidence: The prognostic significance of lipid phosphates can vary by cancer type, with some studies showing that their expression may not always correlate with adverse outcomes. |
| 4892- | Sper, | erastin, | Spermidine inactivates proteasome activity and enhances ferroptosis in prostate cancer |
| - | in-vitro, | Pca, | PC3 | - | in-vivo, | Pca, | 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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