| Features: Promote calcium and phosphorus absorption | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vitamin D3 (Cholecalciferol) - Major VITAL study stated Vit D did not reduce invasive cancer, but Secondary Analysis stated reduces the incidence of metastatic cancer at diagnosis. - Amount needed may depend on your BMI. - Vitamin D deficiency, as determined by serum 25(OH)D concentrations of less than 30 ng/mL, - Target achieving 80 ng/mL - Vitamin D may modulate oxidative stress markers. (ROS) - Nrf2 plays a key role in protecting cells against oxidative stress; this is modulated by vitamin D - Vitamin D has antioxidant and anti-inflammatory regulatory effects; whether supplementation alters response to specific chemotherapy regimens remains context-dependent and not firmly established. - excess Vit D can raise calcium and cause harm Vitamin D deficiency is generally defined as serum 25(OH)D <20 ng/mL (50 nmol/L), though some guidelines consider ≥30 ng/mL sufficient. - One recommendation is to get your level up to around 125 ng/ml (however not supported by consensus clinical trial evidence). - Chemo depletes Vitamin D levels so 10,000 IUs daily? – ask your doctor first. Typical maintenance dosing for most adults is 800–2000 IU/day; higher doses may be used short-term under medical supervision when correcting deficiency. After correction of vitamin D deficiency through loading doses of oral vitamin D (or safe sun exposure), adequate maintenance doses of vitamin D3 are needed. This can be achieved in approximately 90% of the adult population with vitamin D supplementation between 1000 to 4000 IU/day, 10,000 IU twice a week, or 50,000 IU twice a month [10,125]. On a population basis, such doses would allow approximately 97% of people to maintain their serum 25(OH)D concentrations above 30 ng/mL [19,126]. Others, such as persons with obesity, those with gastrointestinal disorders, and during pregnancy and lactation, are likely to require doses of 6,000 IU/day. Vitamin D, particularly its active form 1,25-dihydroxyvitamin D (calcitriol), exerts multiple biological effects that may influence cancer development and progression. Calcitriol has been reported to induce cell cycle arrest (often at the G0/G1 phase) and promote pro-apoptotic mechanisms in various cancer cell types. Inhibition of Angiogenesis: Some studies indicate that vitamin D can reduce the expression of pro-angiogenic factors, thereby potentially limiting the blood supply to tumors, which is necessary for tumor growth and metastasis. Effects on the Wnt/β-catenin Pathway: The Wnt/β-catenin signaling pathway, often dysregulated in several cancers (for example, colorectal cancer), may be modulated by vitamin D. Calcitriol has been shown in some models to inhibit β-catenin signaling, which is associated with decreased cell proliferation and tumor progression. Vitamin D may interact with other signaling pathways, including the PI3K/AKT/mTOR pathway, which is involved in cell survival and proliferation.
Time-Scale Flag (TSF): P / R / G
Clinical trial data suggest vitamin D supplementation effects may be attenuated in individuals with obesity, potentially due to pharmacokinetic and inflammatory differences.
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| Source: HalifaxProj(inhibit) CGL-CS TCGA |
| Type: |
| 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. |
| 1223- | VitD3, | Vitamin D3 Treatment Influences PGE2 and TGFβ in Normal and Increased Breast Cancer Risk Women |
| - | Trial, | NA, | 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
Filter Conditions: Pro/AntiFlg:% IllCat:% CanType:% Cells:% prod#:167 Target#:304 State#:% Dir#:2
wNotes=0 sortOrder:rid,rpid