Apigetrin

Apigetrin is a flavonoid glycoside found in chamomile and parsley that demonstrates anti-cancer properties through cell cycle arrest and apoptosis induction. Research shows it inhibits PI3K/AKT/mTOR signaling pathways while reducing inflammation and oxidative stress in cellular studies.

Origin & History

Apigetrin, also known as apigenin-7-glucoside, is a flavonoid glycoside derived from plants like Scutellaria baicalensis Georgi and various fruits and vegetables. It is typically extracted using standard phytochemical techniques from herbal medicines.

Historical & Cultural Context

Apigetrin is isolated from the traditional Chinese medicinal herb Scutellaria baicalensis Georgi, used for its anti-inflammatory properties. Specific historical usage of apigetrin itself is not detailed.

Health Benefits

• Inhibits proliferation and induces apoptosis in HepG2 hepatocellular carcinoma cells (PMID: 37509167; in vitro).
• Induces G2/M arrest and autophagy in AGS gastric cancer cells by inhibiting PI3K/AKT/mTOR pathways (PMID: 32559585; in vitro).
• Reduces inflammation and oxidative stress in an LPS-induced mouse otitis media model (PMID: 30551453; animal study).
• Ameliorates testicular damage via anti-apoptotic and antioxidant effects in doxorubicin-treated rats (PMID: 38643196; animal study).
• Exhibits anti-inflammatory effects by inhibiting NF-κB signaling in BV-2 microglia and L6 cells (preclinical evidence).

How It Works

Apigetrin exerts anti-cancer effects by inhibiting the PI3K/AKT/mTOR signaling pathway, leading to G2/M cell cycle arrest and autophagy induction in cancer cells. The compound also demonstrates anti-inflammatory activity by reducing LPS-induced inflammatory responses and oxidative stress markers.

Scientific Research

Apigetrin's effects have been investigated only in preclinical settings, with no human clinical trials or meta-analyses available. Key preclinical studies include its effects on HepG2 cells (PMID: 37509167) and gastric cancer cells (PMID: 32559585).

Clinical Summary

Current research on apigetrin consists primarily of in vitro studies examining its anti-cancer properties. Laboratory studies show it effectively inhibits proliferation and induces apoptosis in HepG2 hepatocellular carcinoma cells. Additional cellular research demonstrates G2/M arrest and autophagy induction in AGS gastric cancer cells through PI3K/AKT/mTOR pathway inhibition. However, human clinical trials and specific dosage recommendations are not yet available.

Nutritional Profile

Apigetrin (apigenin-7-O-glucoside) is a naturally occurring flavonoid glycoside (molecular formula: C21H20O10; molecular weight: 432.38 g/mol), not a food ingredient per se but a bioactive phytochemical compound. It is not a source of macronutrients (protein, fat, or carbohydrate in a nutritional sense) or classical micronutrients (vitamins/minerals). As a flavone glycoside, it consists of the aglycone apigenin (4',5,7-trihydroxyflavone) conjugated with a glucose moiety at the 7-position. It is found naturally in chamomile (Matricaria chamomilla) flowers at concentrations reported up to ~3–8 mg/g dry weight, as well as in parsley, celery, and other Apiaceae family plants. Bioavailability: The glucoside form (apigetrin) undergoes hydrolysis in the gut by intestinal beta-glucosidases and colonic microbiota to release the aglycone apigenin, which is then absorbed; the glycoside form generally shows lower direct intestinal absorption compared to the aglycone but may have improved water solubility (solubility ~0.2 mg/mL in water vs. poorly soluble apigenin). Oral bioavailability is limited and estimated to be moderate-to-low (<10–20%) due to extensive first-pass metabolism; primary metabolites include luteolin, naringenin derivatives, and various glucuronide/sulfate conjugates. No fiber, protein, or lipid content is associated with this isolated compound. Standardized extracts used in research typically contain apigetrin at purities of ≥95–98% (HPLC grade).

Preparation & Dosage

No clinically studied dosages in humans are available. Preclinical studies used concentrations like 100 µM in vitro. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Quercetin, Resveratrol, Curcumin, Green Tea Extract, Vitamin C

Safety & Interactions

Safety data for apigetrin supplementation in humans is limited due to the lack of clinical trials. As a flavonoid compound, it may interact with medications metabolized by cytochrome P450 enzymes. Potential side effects and contraindications have not been established through human studies. Pregnant and breastfeeding women should avoid apigetrin supplements due to insufficient safety data.