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| Inositol is a form of sugar your body needs to grow. myo-inositol is a sugar alcohol and a glucose isomer found in many food including grains and fruits. Inositol — Inositol is a naturally occurring six-carbon cyclitol (sugar alcohol-like carbohydrate), with myo-inositol being the predominant biologically active stereoisomer in humans and the form most commonly used as an oral supplement. It is formally classified as a nutrient/metabolic signaling molecule rather than an established anticancer drug; common abbreviations include MI, myo-Ins, and Ins. Myo-inositol is obtained from foods and is also synthesized endogenously from glucose-6-phosphate through ISYNA1-dependent metabolism. It is a precursor for phosphatidylinositol and phosphoinositide second-messenger systems. Myo-inositol should be distinguished from inositol hexaphosphate (IP6/phytic acid), which has substantially more preclinical anticancer literature and is listed separately in this database. Primary mechanisms (ranked):
Bioavailability / PK relevance: Myo-inositol is orally absorbed through sodium-dependent inositol transport systems, with human serum concentrations peaking approximately 1.5–3 hours after oral administration. A 100 mg/kg oral dose produced an estimated peak serum concentration of about 100 µM in a small human kinetic study. Bioavailability varies with formulation and can be reduced by competing D-chiro-inositol and some sugars/transporter substrates. Renal elimination is important. High-dose oncology studies have used approximately 18 g/day; gastrointestinal intolerance becomes dose-limiting at higher doses. In-vitro vs systemic exposure relevance: Exposure is concentration-driven. A recent DU-145 prostate-cancer study reported an approximate myo-inositol IC50 of 0.06 mg/mL after 72 hours, equivalent to about 330 µM; this is several-fold above the approximately 100 µM peak serum concentration observed after a 100 mg/kg oral human dose, although substantially higher oral doses have been used clinically. Some mechanistic experiments use still higher concentrations, so direct systemic translation of in-vitro cytotoxicity should be interpreted cautiously. Chemopreventive and signaling effects may occur below directly cytotoxic concentrations. Clinical evidence status: RCT-level chemoprevention evidence but no demonstrated anticancer efficacy. A randomized double-blind phase IIb trial used myo-inositol 9 g twice daily for six months in smokers with bronchial dysplasia. It did not significantly improve the primary dysplasia-response endpoint versus placebo, although BAL IL-6 decreased and responders showed reduced airway PI3K-activation signatures. Earlier phase I work established approximately 18 g/day as a tolerated dose and suggested lesion-regression activity. Myo-inositol is therefore best classified as an experimental chemopreventive/metabolic adjunct rather than an established cancer treatment. Inositol Cancer-Relevant Mechanisms
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| Lipogenesis is the metabolic process by which simple substrates like acetyl-CoA are converted into fatty acids, which are then assembled into complex lipids. This process is essential for producing cell membranes, signaling molecules, and energy storage forms, such as triglycerides. In normal physiology, lipogenesis is tightly regulated by nutritional and hormonal signals to meet the needs of different tissues. Key enzymes (e.g. acetyl-CoA carboxylase [ACC], fatty acid synthase [FASN]) involved in lipogenesis. Several enzymes play critical roles in lipogenesis, including acetyl-CoA carboxylase (ACC), which catalyzes the rate-limiting formation of malonyl-CoA, and fatty acid synthase (FASN), which catalyzes the assembly of fatty acids. Transcription factors such as SREBP1 (sterol regulatory element-binding protein 1) also regulate the expression of lipogenic genes. Cancer cells often upregulate lipogenesis, even under conditions where normal cells might rely on dietary fat. This metabolic reprogramming supports rapid cell proliferation by providing the necessary lipids for new cellular membranes and energy storage. Elevated activity of enzymes like ACC and FASN is frequently observed in tumors. High lipogenic activity in tumors has been correlated with aggressive phenotypes. Elevated expression of lipogenic enzymes is often associated with increased cell proliferation, invasion, and resistance to apoptosis. Consequently, tumors showing robust lipogenesis may be linked to poorer overall prognosis. |
| 7631- | Ins, | IP6, | Broad Spectrum Anticancer Activity of Myo-Inositol and Inositol Hexakisphosphate |
| - | 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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