Ursolic acid, a naturally occurring triterpenoid, induces the apoptosis of human cancer cells through multiple signaling pathways. In vitro: Ursolic acid is important in the induction of apoptosis via AKT/NF-κB signaling suppression in T24 human bladder cancer cells and this occurs in a dose-dependent manner. Thus, Akt and NF-κB are potential targets for bladder cancer therapy and ursolic acid may serve as a naturally-occurring candidate drug for the prevention and treatment of bladder cancer.[1]Ursolic acid induce apoptosis via inhibition of NF-κB induced BCl-2 mediated anti-apoptotic pathway leading to activation of p53 induced and caspase-3 mediated pro-apoptotic pathways.[2]In vivo: UA significantly suppressed prostate tumor growth in nude mice without any significant decrease in body weight. The systemic bioavailability of UA in serum samples obtained from nude mice. UA was detected in all serum samples 24 h after last injection. Systemic bioavailability of UA was in nanogram range and metabolites of UA were not detected in the samples. These results indicate that UA is well absorbed in the mouse peritoneum and supports the role of UA as a potent compound for chemoprevention and therapy of prostate cancer. [3]
Ginsenoside Rh3 is a bacterial metabolite of Ginsenoside Rg5. Ginsenoside Rh3 treatment in human retinal cells induces Nrf2 activation.
Notoginsenoside R1, the main bioactive component in panaxnotoginseng, is reported to have some neuronal protective, antihypertensive effects. IC50 value:Target:In vitro:In vivo: Notoginsenoside R1 significantly reduce blood pressure in spontaneously hypertensive rats and induce nitric oxide generation through increasing the phosphorylation of iNOS. Notoginsenoside R1 reduces the caudal blood pressure of spontaneously hypertensive rats through induction of iNOS regulated by long non-coding RNA AK094457 [1]. The mice with notoginsenoside R1 treatment showed significant amelioration in the cognitive function and increased choline acetyl transferase expression, as compared to the vehicle treated mice. Notoginsenoside R1 treatment inhibited Aβ accumulation and increased insulin degrading enzyme expression in both APP/PS1 mice and N2a-APP695sw cells [2]. In Notoginsenoside R1 treated rats, expression of TGF-β1and Smad3 at each time point was down-regulated, with statistical significance(P0.05) compared with that in the NDMA group [3].
Rebaudioside C(Dulcoside B) is used as natural sweeteners to diabetics and others on carbohydrate-controlled diets.
Forskolin is a potent adenylate cyclase activator, with IC50 and EC50 of 41 nM and 0.5 μM for type I adenylyl cyclase, respectively.
Ginsenoside Rh1 is isolated from the root of Panax Ginseng. Ginsenoside Rh1 inhibits the expression of PPAR-γ, TNF-α, IL-6, and IL-1β.
Notoginsenoside R2 is a newly isolated notoginsenoside from Panax notoginseng, showed neuroprotective effects against 6-OHDA-induced oxidative stress and apoptosis.
Astragaloside A is one of the major active constituents of Astragalus membranaceus in Traditional Chinese Medicine; has been widely used to treat ischemic diseases.IC50 value: Target: in vitro: AS-IV treatment promotes umbilical vein endothelial cells (HUVEC) proliferation, migration, and tube formation. AS-IV treatment also activates JAK2/STAT3 and ERK1/2 signaling pathways, and up-regulates endothelial nitric oxide synthase (eNOS) expression and nitric oxide (NO) production [1]. Administration of astragaloside IV (16, 32, and 64 μM) 1 h prior to lipopolysaccharide stimulation dose-dependently attenuated cardiac hypertrophy induced by lipopolysaccharide. Further studies demonstrated that astragaloside IV inhibited the increment of the resting intracellular free Ca2+, and its effect was similar to verapamil [2]. ASI could inhibit cells apoptosis induced by high glucose (25mmol/L) in dose-dependent and time-dependent manners. ASI also inhibited high glucose-induced expression of TGF-β1 and activation of p38 MAPK pathway at the protein level. Furthermore, ASI increased HGF production in human tubular epithelial cells [3].in vivo: the growth of tumor was suppressed by AS-IV treatment in vivo. AS-IV also could down-regulate regulatory T cells (Tregs) and up-regulate cytotoxic T lymphocytes (CTLs) in vivo and in vitro[4]. As an in vivo model, mice subjected to unilateral ureteral obstruction (UUO) were administered AS-IV (20 mg/kg) by intraperitoneal injection for 7 days. AS-IV significantly alleviated renal mass loss and reduced the expression of α-smooth muscle actin, fibronectin, and collagen IV both in vitro and in vivo [5].
Ginkgolide B, an important active terpenoid from Ginkgo biloba leaves, is reported to increase cell viability and decrease cell apoptosis.IC50 value:Target:In vitro: Ginkgolide B (0.2 or 0.4 μg/ml) was added to the culture medium in vitro led to increases in cell viability and decreases in the number of hippocampal cells undergoing AAPH-induced apoptosis [1]. Ginkgolide B caused a dose-related protection against dysrhythmias; the antiarrhythmic effect of ginkgolide B was comparable to that of diltiazem and superior to the activity of metoprolol. Ginkgolide B can presumably prevent the re-entry mechanism involved in the development of ischemia-induced rhythm disturbances [2].In vivo: Oral administration of ginkgolide B (2 mg/kg/day, p.o.) caused a significant increase in cell viability and a highly significant decrease in the numbers of both spontaneously occurring and AAPH-induced apoptoses.
Ginkgolide C is a flavone isolated from Ginkgo biloba leaves, possessing multiple biological functions, such as decreasing platelet aggregation and ameliorating Alzheimer disease.
Oxypaeoniflorin is a natural product derived from Radix Paeoniae Rubra and Radix Paeoniae Alba.
Podocarpic acid is a natural product, which has the best all-round positive effect and acts as a novel TRPA1 activator.
Limonene is a monoterpene in citrus peel oil. A popular disinfectant and food preservative. Antimicrobial activities[1]. Anti-proliferative activities[2]. Antioxidant and anti-inflammatory effect[3].
Macranthoidin B is a major bioactive saponin in rat plasma after oral administration of extraction of saponins from Flos Lonicerae.
14-Deoxy-11,12-didehydroandrographolide is an analogue of Andrographolide that can be isolated from A. paniculata. 14-Deoxy-11,12-didehydroandrographolide inhibits NF-κB activation.
Ginsenoside Rb3 is extracted from steamed Panax notoginseng. Ginsenoside Rb3 exhibits inhibitory effect on TNFα-induced NF-κB transcriptional activity with an IC50 of 8.2 μM in 293T cell lines. Ginsenoside Rb3 also inhibits the induction of COX-2 and iNOS mRNA.
Curcumol is a sesquiterpene originally isolated from curcuma rhizomes; shows anticancer activities both in vitro and in vivo.IC50 value:Target: Anticancer natural compoundin vitro: Curcumol exhibited time- and concentration-dependent anti-proliferative effects in SPC-A-1 human lung adenocarcinoma cells with cell cycle arrest in the G0/G1 phase while apoptosis-induction was also confirmed with flow cytometry and morphological analyses [1]. Curcumol-induced growth inhibition correlated with apoptosis induction as evidenced by Annexin V staining, and cleavage of caspase-3 and poly (ADP-ribose) polymerase (PARP) in HSC-T6. Suppression of the NF-κB translocation via inhibition of IκB-α phosphorylation by the curcumol led to the inhibition of expression of NF-κB-regulated gene, e.g. Bcl-xL and Bcl-2, in a PI3K-dependent manner, which is upstream of NF-κB activation [2]. Curcumol exhibits an inhibitory effect on receptor activator of nuclear factor kappaB ligand (RANKL)-induced osteoclast differentiation with both bone marrow-derived macrophages and RAW264.7 cells in a dose-dependent manner [3].in vivo: Anti-neoplastic effects of curcumol were also confirmed in tumor bearing mice. Curcumol (60 mg/kg daily) significantly reduced tumor size without causing notable toxicity [1].
pleuromutilin inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit of bacteria.
Tubeimoside II(Tubeimoside-B) is a natural analogue of oleanane type of triterpenoid saponin; show anti-inflammatory, antitumor, and antitumor-promoting effects.IC50 value:Target:The anti-inflammatory, anti-tumor, and anti-tumorigenic activities of tubeimoside II are stronger than those of tubeimoside I, and the acute toxicity of tubeimoside II is lower than that of tubeimoside I; the anti-inflammatory, anti-tumor, and anti-tumorigenic activities of tubeimoside III are stronger than those of tubeimoside II, and the acute toxicity of tubeimoside III is also stronger than that of tubeimoside II.
Acevaltrate, isolated from Valeriana glechomifolia, inhibits the Na+/K+-ATPase activity in the rat kidney and brain hemispheres with IC50s of 22.8±1.1 μM and 42.3±1.0 μM, respectively[1].
Panaxatriol is a natural product that can relieve myelosuppression induced by radiation injury.
Artemisinin is an anti-malarial drug isolated from the aerial parts of Artemisia annua L. plants.
7-epi-Taxol is an active metabolite of taxol, with activity comparable to that of taxol against cell replication, promoting microtubule bundle formation and against microtubule depolymerization.
Cucurbitacin E is a natural compound which from the climbing stem of Cucumic melo L. Cucurbitacin E significantly suppresses the activity of the cyclin B1/CDC2 complex.
Gentiopicroside, a naturally occurring iridoid glycoside, inhibits P450 activity, with an IC50 and a Ki of 61 µM and 22.8 µM for CYP2A6; Gentiopicroside has antianti-inflammatoryand antioxidative effects.
Brusatol, isolated from the Brucea javanica plant, inhibits Nrf2.
Britannilactone(Desacetylinulicin) is a methanol extract of the dried flower of Inula britannica L.IC50 value:Target:A bioassay-guided isolation of the chloroform fraction of the I. britannica using an in vitro melanogenesis inhibition assay led to the isolation of sesquiterpenes, 1-O-acetylbritannilactone (1), britannilactone (2) and neobritannilactone B (3). Compounds 1 and 2 significantly reduced melanin production in a dose-dependent manner with IC50 values of 13.3 and 15.5 μM, respectively [1].
Cucurbitacin I is a natural selective inhibitor of JAK2/STAT3, with potent anti-cancer activity.
Kauniolide(81066-45-7) is a natural compound.
Ingenol Mebutate is an active ingredient in Euphorbia peplus, acts as a potent PKC modulator, with Kis of 0.3, 0.105, 0.162, 0.376, and 0.171 nM for PKC-α, PKC-β, PKC-γ, PKC-δ, and PKC-ε, respectively, and has antiinflammatory and antitumor activity.