Hermetica Superfood Encyclopedia
The Short Answer
Icaritin is a prenylflavonoid derivative of icariin that demonstrates potent anti-cancer activity through cell cycle arrest and apoptosis induction. This bioactive compound primarily targets hepatocellular carcinoma cells with IC50 values ranging from 3-8 μM in preclinical studies.
CategoryNamed Bioactive Compounds
GroupCompound
Evidence LevelModerate
Primary Keywordicaritin benefits
Synergy Pairings3
Icaritin (Flavonoid) — botanical close-up
Health Benefits
Origin & History
Natural habitat
Icaritin is a prenylated flavonoid aglycone found in plants of the genus Epimedium (horny goat weed), serving as the deglycosylated form of icariin. It is produced naturally in low amounts or via enzymatic hydrolysis using Aspergillus sp. flavonoid-glycosidase, yielding 92.5% molar purity at 98% HPLC purity through biotransformation.
“Icaritin occurs in Epimedium herbs used in Traditional Chinese Medicine. However, no specific historical context or traditional indications for icaritin itself (versus glycosides like icariin) are documented in available sources.”Traditional Medicine
Scientific Research
No human clinical trials, RCTs, or meta-analyses on icaritin were identified. Research is limited to preclinical in vitro studies, such as anti-hepatocellular carcinoma effects where icaritin derivatives inhibited Hep3B, HepG2, and SMMC-7721 cell lines, with derivative 11c showing IC50 values of 7.6 μM (HepG2) and 3.1 μM (SMMC-7721).
Preparation & Dosage
Traditional preparation
No clinically studied dosage ranges for icaritin in humans are available. In vitro anticancer assays used icaritin concentrations yielding IC50 values around 3-8 μM against HCC cells, but no standardization or human dosing has been established. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
{"bioactive_compounds": {"icaritin": {"concentration": "variable", "bioavailability_notes": "Limited human data; bioavailability may be affected by metabolism and absorption rates."}}, "macronutrients": {"protein": "Not applicable", "fiber": "Not applicable"}, "micronutrients": {"vitamins": "Not applicable", "minerals": "Not applicable"}}
How It Works
Mechanism of Action
Icaritin induces G0/G1 phase cell cycle arrest by modulating cyclin-dependent kinase pathways and promoting p53-mediated apoptosis. The compound activates caspase cascades while downregulating anti-apoptotic proteins like Bcl-2. It also demonstrates estrogen receptor modulation and potential anti-angiogenic effects through VEGF pathway inhibition.
Clinical Evidence
Current evidence for icaritin is limited to preclinical in vitro and animal studies, with no completed human clinical trials. Laboratory studies demonstrate cytotoxicity against hepatocellular carcinoma cell lines (HepG2, SMMC-7721) with IC50 values of 3-8 μM. Animal studies suggest potential hepatoprotective and anti-tumor effects, but effective human dosing remains undetermined. The evidence quality is preliminary and requires human clinical validation.
Safety & Interactions
Safety data for icaritin in humans is extremely limited due to lack of clinical trials. As a flavonoid derivative, it may interact with cytochrome P450 enzymes, potentially affecting drug metabolism. Theoretical concerns include hormonal effects due to estrogen receptor activity, making it potentially unsuitable during pregnancy and breastfeeding. Individuals on anticoagulant medications should exercise caution due to potential bleeding risk associated with flavonoid compounds.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
3,5,7-trihydroxy-2-(4-hydroxyphenyl)-8-(3-methyl-2-butenyl)-4H-1-benzopyran-4-oneIcaritin aglyconeDeglycosylated icariinEpimedium flavonoidPrenylated flavonoid aglyconeHorny goat weed aglycone
Frequently Asked Questions
What is the difference between icaritin and icariin?
Icaritin is a metabolite and derivative of icariin, lacking the glucose and rhamnose sugar groups present in icariin. This structural difference makes icaritin more bioavailable and potent, with stronger anti-cancer effects demonstrated in preclinical studies.
What cancers does icaritin work against?
Preclinical studies show icaritin is most effective against hepatocellular carcinoma (liver cancer) with IC50 values of 3-8 μM in HepG2 and SMMC-7721 cell lines. Limited research suggests potential activity against other cancer types, but liver cancer shows the strongest evidence.
How much icaritin should I take daily?
There is no established safe or effective dosage for icaritin in humans since no clinical trials have been completed. All current evidence comes from laboratory studies using concentrations that cannot be directly translated to human supplement doses.
Can icaritin cause side effects?
Side effects in humans are unknown due to lack of clinical studies. Based on its estrogen receptor activity and flavonoid structure, potential concerns include hormonal disruption, drug interactions, and possible bleeding risk, especially with anticoagulant medications.
Where does icaritin come from naturally?
Icaritin is found in Epimedium species (horny goat weed) plants, particularly as a metabolite of icariin. It can be extracted directly from the plant or produced through enzymatic conversion of icariin during processing or metabolism.
What is the current evidence quality for icaritin's anti-cancer effects in humans?
Current evidence for icaritin's anti-cancer effects is preliminary, based primarily on laboratory studies using cancer cell lines (HepG2, SMMC-7721) rather than human clinical trials. While preclinical data shows promising IC50 values of 3-8 μM and mechanisms like G0/G1 cell cycle arrest, these results have not been validated in human populations. No large-scale clinical trials in humans have yet confirmed these anti-cancer benefits, so icaritin should not be considered a proven cancer treatment at this time.
Is icaritin safe to use alongside chemotherapy or cancer medications?
The safety of combining icaritin with chemotherapy or cancer medications has not been adequately studied in humans or clinical settings. Given icaritin's preliminary effects on cell cycle regulation and apoptosis, there is a theoretical risk of interactions with conventional cancer treatments. Anyone undergoing cancer treatment should consult their oncologist before adding icaritin or other supplements, as some may interfere with drug efficacy or increase toxicity.
What organs or health conditions does icaritin research suggest may benefit most?
Preclinical research indicates icaritin may have potential multi-organ support capabilities, particularly for liver, lung, heart, bone, and blood health, though most evidence comes from laboratory studies rather than human trials. The strongest preliminary data focuses on hepatocellular carcinoma cell inhibition, suggesting the liver may be a primary target organ. However, translation of these findings to clinical benefit in humans remains unproven and requires further investigation.
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