| Features: Compound | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Brazilian Green Propolis often considered best • Derived from Baccharis dracunulifolia, this type is rich in artepillin C. • It has been widely researched for its anticancer, anti-inflammatory, and antioxidant properties. -Propolis common researched flavonoids :chrysin, pinocembrin, galangin, pinobanksin(Pinocembrin) -most representative phenolic acids were caffeic acid, p-coumaric acid, and ferulic acid, as well as their derivatives, DMCA and caffeic acid prenyl, benzyl, phenylethyl (CAPE), and cinnamyl esters -One of the most studied active compounds of a poplar-type propolis is caffeic acid phenethyl ester (CAPE) -caffeic acid phenethyl ester (CAPE), galangin, chrysin, nemorosone, propolin G, artepillin C, cardanol, pinocembrin, pinobanksin, chicoric acid, and phenolic acids (caffeic acid, ferulic acid, and coumaric acid), as well as luteolin, apigenin, myricetin, naringenin, kaempferol, quercetin, polysaccharides, tannins, terpenes, sterols, and aldehydes -content highly variable based on location and extraction Two main factors of interest: 1. affects interstitual fluild pH 2. high concentration raises ROS (Reactive Oxygen Species), while low concentration may reduce ROS - Artepillin-C (major phenolic compounds found in Brazilian green propolis (BGP)) - caffeic acid major source Propolis is chemically diverse (300+ compounds reported) and composition depends on botanical/geographic source. Antibacterial activity is documented in classic literature (often stronger against Gram+). CAPE from propolis has reported preferential tumor cytotoxicity in early landmark work (often cited in antimicrobial paper references) Do not combine with 2DG Pathways: -Propolis compounds (e.g., artepillin C, caffeic acid phenethyl ester [CAPE]) can trigger apoptosis (programmed cell death) in cancer cells. -Propolis has been shown to inhibit NF‑κB activation. -Propolis extracts can cause cell cycle arrest at specific checkpoints (e.g., G0/G1 or G2/M phases). -Enhance the body’s antitumor immune responses, for example by activating natural killer (NK) cells and modulating cytokine profiles. -Note half-life no standard, high variablity of content. BioAv poor water solubility, and low oral bioavailability. Pathways: - high concentration may induce ROS production, while low concentrations mya low it. This may apply to both normal and cancer cells. Normal Cells Example. (Also not sure if high level are acheivable in vivo due to bioavailability) - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓, Prx, SOD↓, GSH↓ Catalase↓ HO1↓ GPx↓ --> - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓">COX2↓, Pro-Inflammatory Cytokines : NLRP3↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, IGF-1↓, uPA↓, VEGF↓, ROCK1↓, FAK↓, RhoA↓, NF-κB↓, TGF-β↓, α-SMA↓, ERK↓ - reactivate genes thereby inhibiting cancer cell growth : HDAC↓, P53↑, - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, FAK↓, ERK↓, EMT↓, TOP1↓, TET1, - inhibits glycolysis /Warburg Effect and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, PFKs↓, PDKs↓, GRP78↑, GlucoseCon↓ - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, - Others: PI3K↓, AKT↓, STAT↓, β-catenin↓, AMPK, ERK↓, JNK, - Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells
Time-Scale Flag (TSF): P / R / G
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| Source: HalifaxProj(inhibit) |
| Type: |
| Cyclooxygenase-2 (COX-2) is an enzyme that plays a critical role in the conversion of arachidonic acid to prostaglandins, which are lipid compounds involved in various physiological processes, including inflammation, pain, and fever. COX-2 is an inducible enzyme, meaning its expression is typically low in normal tissues but can be upregulated in response to inflammatory stimuli, growth factors, and certain oncogenic signals. -Cyclooxygenase-2 (COX-2), the rate-limiting enzyme in prostaglandin biosynthesis, plays a key role in inflammation and circulatory homeostasis. -COX-2 is an inducible enzyme that is upregulated in response to pro-inflammatory signals, including cytokines (e.g., IL-1β, TNF-α) and growth factors. COX-2 is often overexpressed in various tumors, including colorectal, breast, lung, and prostate cancers. The prostaglandins produced by COX-2, particularly prostaglandin E2 (PGE2), have several effects that can facilitate cancer progression: Cell Proliferation: PGE2 can promote the proliferation of cancer cells by activating signaling pathways such as the PI3K/Akt and MAPK pathways. Nonselective NSAIDs, such as aspirin and ibuprofen, inhibit both COX-1 and COX-2. Epidemiological studies have suggested that regular use of NSAIDs may reduce the risk of certain cancers, particularly colorectal cancer. Drugs specifically targeting COX-2, such as celecoxib, have been developed. COX-2 and xanthine oxidase are ROS-producing pro-oxidant enzymes that contribute to inflammation. Elevated COX‑2 levels, often found in inflammatory conditions or certain types of cancers, can contribute to increased production of ROS. |
| 1666- | PBG, | Molecular and Cellular Mechanisms of Propolis and Its Polyphenolic Compounds against Cancer |
| - | 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
Filter Conditions: Pro/AntiFlg:% IllCat:% CanType:% Cells:% prod#:137 Target#:66 State#:% Dir#:2
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