Diosmin is a flavonoid found in a variety of citrus fruits and also an agonist of the aryl hydrocarbon receptor (AhR).
Neobavaisoflavone, an isoflavone isolated from Psoralea corylifolia, has striking anti-inflammatory and anti-cancer effects. IC50 value: 42.93 μM (toward CCRF-CEM cells); 114.64 μM [against HCT116 (p53(+/+)) cells] [2]Target:In vitro: In the cancer cells, neobavaisoflavone sensitizes human U373MG glioma cells to TRAIL-mediated apoptosis; upregulated DR5 expression; induced TRAIL-mediated apoptosis in human glioma cells by suppressing migration and invasion, and by inhibiting anoikis resistance [1]. In caner cell lines, neobavaisoflavone is selectively active, and IC50 values below 115 μM were obtained on 6/9 cell lines, with values ranging from 42.93 μM (toward CCRF-CEM cells) to 114.64 μM [against HCT116 (p53(+/+)) cells] [2]. In vivo:
Cirsiliol is a potent and selective 5-lipoxygenase inhibitor and a competitive low affinity benzodiazepine receptor ligand.
Kuwanon A is a flavone derivative isolated from the root barks of the mulberry tree (Morus alba L.); inhibits nitric oxide production with an IC50 of 10.5 μM.
Procyanidin B1 is a polyphenolic flavonoid isolated from commonly eaten fruits, binds to TLR4/MD-2 complex, and has anti-inflammatory activity.
Tectochrysin (Techtochrysin) is one of the major flavonoids of Alpinia oxyphylla Miquel. Tectochrysin (Techtochrysin) inhibits activity of NF-κB.
Epmedin C, a natural product, has estrogen-like effects for ovariectomized mice.IC50 value:Target:In vitro:In vivo: Anesthetized with 0.4%pentobarbital sodium, mice of the ovariectomized group were conducted with Bilateral oophorectomy, while fat beside ovaries were removed on mice of the sham-operation group. Compared with the sham-operation group, body weight of mice of model group were significantly increased, uterus weight and uterine factor and estradiol levels were significantly reduced, which suggested a significant difference. In comparison of the ovariectomized group, body weight of mice were relieved significantly and uterus weight and uterine factor and estradiol levels were increased significantly in all Epmedin C groups [1].
Casticin is a methyoxylated flavonol isolated from Viticis Fructus, with antimitotic and anti-inflammatory effect. Casticin inhibits the activation of STAT3.
Bavachin, a flavonoid first isolated from seeds of P. corylifolia, acts as a phytoestrogen that activates the estrogen receptors ERα and ERβ with EC50s of 320 and 680 nM, respectively.
Mulberrin is a strong inhibitor of organic anion-transporting polypeptide 2B1 (OATP2B1)-mediated estrone-3-sulfate (E3S) uptake with an IC50 value being 1.8 ±1.5 μM.
Luteolin 7-O-glucuronide could inhibit Matrix Metalloproteinases (MMP) activities, with IC50s of 17.63, 7.99, 11.42, 12.85, 0.03 μM for MMP-1, MMP-3, MMP-8, MMP-9, MMP-13, respectively.
Sophoflavescenol is a prenylated flavonol, which shows great inhibitory activity with IC50 of 0.013 μM against Phosphodiesterase 5 (PDE5), and also inhibits RLAR, HRAR, AGE, BACE1, AChE and BChE with IC50s of 0.30 µM, 0.17 µM, 17.89 µg/mL, 10.98 µM, 8.37 µM and 8.21 µM, respectively.
Astilbin, a flavonoid compound, is isolated from the rhizome of Smilax glabra. Astilbin enhances NRF2 activation. Astilbin also suppresses TNF-α expression and NF-κB activation.
Hesperidin (HP) is a bioflavonoid that plays a role in plant defense and is abundant in citrus species, such as grapefruit, lemon and orange. Hesperidin is used effectively as a supplemental agent in complementary therapy protocols, since it possesses biological and pharmacological properties as an effective antioxidant, anti-inflammatory, anti-carcinogenic, and anti-hypertensive agent with lipid-lowering activity[1]IC50: hesperidin (IC50=116.68μmo/L))[4]in vitro: hesperidin and linarin are two of the main constituent of Valeriana's extract exhibiting a high affinity to KATP channel, which are related to the control of Ca++ concentration and release of GABA in synaptic nerve terminal, mainly on cells of SN[2]in vivo: Hesperidin was dissolved in 1% carboxymethyl cellulose (CMC) and administered orally at a dose of 50 mg/kg for 10 consecutive days. In the control group, rats were treated with the corn oil and 1% CMC vehicle.[1]
Phlorizin is a non-selective SGLT inhibitor with Kis of 300 and 39 nM for hSGLT1 and hSGLT2, respectively. Phlorizin is also a Na+/K+-ATPase inhibitor.
Licochalcone C could inhibit α-glucosidase, with IC50s of <100 nM and 92.43 μM for α-glucosidase and protein tyrosine phosphatase 1B (PTP1B), respectively.
Tectorigenin is a plant isoflavonoid originally isolated from the dried flower of Pueraria thomsonii Benth.
Bavachinin(7-O-Methylbavachin) is a natural compound isolated from the Chinese herb Fructus Psoraleae;has potent anti-angiogenic activity.IC50 value:Target:in vitro: Isobavachalcone significantly inhibits both oligomerization and fibrillization of Aβ42, whereas bavachinin inhibits fibrillization and leads to off-pathway aggregation. Both of the compounds attenuated Aβ42-induced toxicity in a SH-SY5Y cell model [1]. Bavachinin, has potent anti-angiogenic activity in vitro and in vivo. Bavachinin inhibited increases in HIF-1α activity in human KB carcinoma (HeLa cell derivative) and human HOS osteosarcoma cells under hypoxia in a concentration-dependent manner, probably by enhancing the interaction between von Hippel-Lindau (VHL) and HIF-1α [2].in vivo: significantly inhibited Th2 cytokine production, including IL-4, IL-5 and IL-13. Notably, this compound almost completely blocked inflammation in the ovalbumin (OVA)-sensitized animal asthma model [3].
Cardamonin is a novel antagonist of hTRPA1 cation channel with an IC50 of 454 nM.
Sotetsuflavone is a potent inhibitor of DENV-NS5 RdRp (Dengue virus NS5 RNA-dependent RNA polymerase) with an IC50 of 0.16 uM, is the most active compound of this series .
Glycitein is a soybean (yellow cultivar) isoflavonoid; used in combination with other isoflavonoids such as genistein and daidzein to study apoptosis and anti-oxidation processes.
Bavachalcone is a major bioactive compounds isolated from Psoralea corylifolia L.; has been widely used as traditional Chinese medicine; antibiotic or anticancer agent.IC50 value:Target:Bavachalcone inhibited osteoclast formation from precursor cells with the IC(50) of approximately 1.5 microg ml(-1). The activation of MEK, ERK, and Akt by receptor activator of nuclear factor kappaB ligand (RANKL), the osteoclast differentiation factor, was prominently reduced in the presence of bavachalcone. The induction of c-Fos and NFATc1, key transcription factors for osteoclastogenesis, by RANKL was also suppressed by bavachalcone [1]. Bavachalcone exhibited a significant inhibitory effect on baculovirus-expressed BACE-1 in vitro [2]. Bavachalcone had stronger inhibition on UGT1A1 and UGT1A7 than corylin which did not inhibit UGT1A1, UGT1A3, UGT1A7, UGT1A8, UGT1A10, and UGT2B4. Data fitting using Dixon and Lineweaver-Burk plots demonstrated the noncompetitive inhibition of bavachalcone against UGT1A1 and UGT1A7-mediated 4-MU glucuronidation reaction. The values of inhibition kinetic parameters (Ki) were 5.41 μ M and 4.51μ M for UGT1A1 and UGT1A7, respectively [3].
Apigenin-7-glucoside exhibits significant anti-proliferative and antioxidant activity, scavengers of ROS.In vitro: exhibits significant anti-proliferative activity against B16F10 melanoma cells after 24 and 48 h of incubation. Apigenin-7-glucoside provoks an increase of subG0/G1, S and G2/M phase cell proportion with a significant decrease of cell proportion in G0/G1 phases. Apigenin-7-glucoside enhances melanogenesis synthesis and tyrosinase activity of B16F10 melanoma cells. [1] Api7G specifically induced the differentiation of CD34+ cells towards the erythroid lineage and inhibited the myeloid differentiation. [2] APIG had strong antioxidant activity against reactive oxygen species (ROS) in vitro in a concentration-dependent manner.
[6]-Gingerol is an active compound isolated from Ginger (Zingiber officinale Rosc), exhibits a variety of biological activities including anticancer, anti-inflammation, and anti-oxidation.
Quercetagetin (6-Hydroxyquercetin) is the major flavonoid isolated from Citrus unshiu (C. unshiu) peel[3]. Quercetagetin is a moderately potent and selective, cell-permeable pim-1 kinase inhibitor (IC50, 0.34 μM)[1]. Anti-inflammatory and anticancer properties.
Isovitexin is a flavonoid isolated from rice hulls of Oryza sativa, possesses anti-inflammatory and anti-oxidant activities; Isovitexin acts like a JNK1/2 inhibitor and inhibits the activation of NF-κB.
Icariside I is a metabolite of Icarlin, which could regulate bone remodeling and is recognized as an effective agent for the treatment of osteoporosis.
Sagittatoside B is a natural compound isolated from traditional Chinese herb Yinyanghuo (Herba Epimdii).
Scutellarin, an active flavone isolated from Scutellaria baicalensis, can down-regulates the STAT3/Girdin/Akt signaling in HCC cells, and inhibits RANKL-mediated MAPK and NF-κB signaling pathway in osteoclasts.