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| Silymarin (Milk Thistle) Flowering herb related to daisy and ragweed family. Silibinin (INN), also known as silybin is the major active constituent of silymarin, a standardized extract of the milk thistle seeds. -a flavonoid combination of 65–80% of seven flavolignans; the most important of these include silybin, isosilybin, silychristin, isosilychristin, and silydianin. Silybin is the most abundant compound in around 50–70% in isoforms silybin A and silybin B -Note half-life 6hrs?. BioAv not soluble in water, low bioA (1%). 240mg yielded only 0.34ug/ml plasma level. oral administration of SM (equivalent to 120 mg silibinin), total (unconjugated + conjugated) silibinin concentration in plasma was 1.1–1.3 μg/mL, so can on acheive levels used in most in-vitro studies. Pathways: - results for both inducing and reducing ROS in cancer cells. In normal cell seems to consistently lower ROS. Given low bioavailability seems unlikely one could acheieve levels in vivo to raise ROS(except level in GUT could be much higher (800uM). - ROS↑ related: MMP↓(ΔΨm), Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, TIMP2, uPA↓, VEGF↓, FAK↓, NF-κB↓, CXCR4↓, TGF-β↓, α-SMA↓, ERK↓ - reactivate genes thereby inhibiting cancer cell growth : HDAC↓, DNMTs↓, P53↑, HSP↓, - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, FAK↓, ERK↓, EMT↓, - inhibits glycolysis and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, PFKs↓, OXPHOS↓, GRP78↑, Glucose↓, GlucoseCon↓ - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, PDGF↓, EGFR↓, - inhibits Cancer Stem Cells : CSC↓, Hh↓, GLi1↓, β-catenin↓, Notch2↓, OCT4↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK, ERK↓, JNK, - SREBP (related to cholesterol). - Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells |
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| Glycolysis is a metabolic pathway that converts glucose into pyruvate, producing a small amount of ATP (energy) in the process. It is a fundamental process for cellular energy production and occurs in the cytoplasm of cells. In normal cells, glycolysis is tightly regulated and is followed by aerobic respiration in the presence of oxygen, which allows for the efficient production of ATP. In cancer cells, however, glycolysis is often upregulated, even in the presence of oxygen. This phenomenon is known as the Warburg Mutations in oncogenes (like MYC) and tumor suppressor genes (like TP53) can alter metabolic pathways, promoting glycolysis and other anabolic processes that support cell growth.effect. Acidosis: The increased production of lactate from glycolysis can lead to an acidic microenvironment, which may promote tumor invasion and suppress immune responses. Glycolysis is a hallmark of malignancy transformation in solid tumor, and LDH is the key enzyme involved in glycolysis. Pathways: -GLUTs, HK2, PFK, PK, PKM2, LDH, LDHA, PI3K/AKT/mTOR, AMPK, HIF-1a, c-MYC, p53, SIRT6, HSP90α, GAPDH, HBT, PPP, Lactate Metabolism, ALDO Natural products targeting glycolytic signaling pathways https://pmc.ncbi.nlm.nih.gov/articles/PMC9631946/ Alkaloids: -Berberine, Worenine, Sinomenine, NK007, Tetrandrine, N-methylhermeanthidine chloride, Dauricine, Oxymatrine, Matrine, Cryptolepine Flavonoids: -Oroxyline A, Apigenin, Kaempferol, Quercetin, Wogonin, Baicalein, Chrysin, Genistein, Cardamonin, Phloretin, Morusin, Bavachinin, 4-O-methylalpinumisofavone, Glabridin, Icaritin, LicA, Naringin, IVT, Proanthocyanidin B2, Scutellarin, Hesperidin, Silibinin, Catechin, EGCG, EGC, Xanthohumol. Non-flavonoid phenolic compounds: Curcumin, Resveratrol, Gossypol, Tannic acid. Terpenoids: -Cantharidin, Dihydroartemisinin, Oleanolic acid, Jolkinolide B, Cynaropicrin, Ursolic Acid, Triptolie, Oridonin, Micheliolide, Betulinic Acid, Beta-escin, Limonin, Bruceine D, Prosapogenin A (PSA), Oleuropein, Dioscin. Quinones: -Thymoquinone, Lapachoi, Tan IIA, Emodine, Rhein, Shikonin, Hypericin Others: -Perillyl alcohol, HCA, Melatonin, Sulforaphane, Vitamin D3, Mycoepoxydiene, Methyl jasmonate, CK, Phsyciosporin, Gliotoxin, Graviola, Ginsenoside, Beta-Carotene. |
| 1001- | SIL, | Silibinin down-regulates PD-L1 expression in nasopharyngeal carcinoma by interfering with tumor cell glycolytic metabolism |
| - | in-vitro, | NA, | NA |
| 1140- | SIL, | Silibinin-mediated metabolic reprogramming attenuates pancreatic cancer-induced cachexia and tumor growth |
| - | in-vitro, | PC, | AsPC-1 | - | in-vivo, | PC, | NA | - | in-vitro, | PC, | MIA PaCa-2 | - | in-vitro, | PC, | PANC1 | - | in-vitro, | PC, | Bxpc-3 |
| 2410- | SIL, | Autophagy activated by silibinin contributes to glioma cell death via induction of oxidative stress-mediated BNIP3-dependent nuclear translocation of AIF |
| - | in-vitro, | GBM, | U87MG | - | in-vitro, | GBM, | U251 | - | in-vivo, | NA, | NA |
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