Reactive Oxygen Species

MitoSOX Red is a novel fluorescent probe that is specific and cell membrane-permeable and targets mitochondria in living cells.MitoSOX Red is oxidized by superoxide upon entry into the mitochondria and is not oxidized by other ROS or RNS-generating systems.MitoSOX Red then binds to nucleic acids in the mitochondrion and produces a strong red fluorescence.MitoSOX Red can be used as a fluorescent indicator for the specific detection of superoxide.MitoSOX Red can be used as a fluorescent indicator for the specific detection of superoxide. MitoSOX Red can be used as a fluorescent indicator to specifically detect superoxide. Superoxide dismutase (SOD) prevents the oxidation of MitoSOX Red.

Imeglimin hydrochloride (EMD 387008 hydrochloride） is an oral hypoglycemic agent. Imeglimin improves insulin sensitivity, inhibits the production of reactive oxygen species, increases mitochondrial DNA, and improves mitochondrial function.

Antroquinonol is a ubiquinone derivative from Antrodia camphorata with anti-inflammatory and anticancer activities.Antroquinonol reduces oxidative stress and inhibits inflammation and sclerosis in mice with focal segmental glomerulosclerosis through enhancement of the Nrf2 signaling pathway.Antroquinonol has potential for use in the treatment of non-small cell lung cancer. Antroquinonol has potential for the treatment of non-small cell lung cancer and may be used in colon cancer research.

Elesclomol (STA-4783) is an oxidative stress inducer and a highly lipophilic copper ion carrier. Elesclomol induces apoptosis in tumor cells and is used in copper death related studies. Elesclomol also inhibits FDX1-mediated Fe-S cluster biosynthesis.

Acetylcysteine (NAC) is an N-acetyl derivative of cysteine, a ROS inhibitor and mucolytic agent. Acetylcysteine induces apoptosis, can be used to reduce mucus thickness, and has anti-influenza viral activity.

Squalene (AddaVax) is a natural organic compound originally obtained for commercial purposes primarily from shark liver oil, though there are botanical sources as well, including rice bran, wheat germ, and olives. All higher organisms produce squalene, including humans. Squalene is an intermediate product in the synthesis of cholesterol and shows several pharmacological properties such as hypolipidemic, hepatoprotective, cardioprotective, antioxidant, and antitoxicant activity.

Quercetin, a flavonoid natural product, is a SIRT1 activator. It is also a PI3K inhibitor, inhibiting PI3Kγ, PI3Kδ, and PI3Kβ with IC50 values of 2.4, 3.0, and 5.4 μM, respectively. Recognized as a heat shock protein inhibitor, Quercetin can significantly reduce exosome release in TII models by downregulating Hsp70 or Hsp90.

Zinc Protoporphyrin (Zn(II)-protoporphyrin IX) is an orally active, competitive inhibitor of heme oxygenase-1 (HO-1) that markedly attenuates the protective effects of Phloroglucinol (PG) against H2O2 and exhibits anti-cancer activity.

Succinyl phosphonate trisodium salt is an inhibitor of α-ketoglutarate dehydrogenase (KGDHC).

Mito-TEMPO, a mitochondria-targeted superoxide dismutase mimetic, scavenges superoxide and alkyl radicals, preventing mitochondrial oxidation, necrosis, and apoptosis.

Trabectedin (Ecteinascidin 743) has potent antitumor activity and the potential for soft tissue sarcoma and ovarian cancer research. Trabectedin inhibits cell growth of MX-1, MCF7 and MCF7 DXR cells with IC50 values of 0.1 nM, 1.5 nM and 3.7 nM, respectively.

H2DCFDA (DCFH-DA) belongs to the class of green fluorescent dyes and is a probe for the detection of intracellular reactive oxygen species (ROS) (Ex Em=488 525 nm) with cell membrane permeability.

Mitoquinone mesylate (MitoQ10 mesylate) is a TPP-based, mitochondrially targeted antioxidant to protect against oxidative damage.

N-Acetylcysteine amide is a thiol antioxidant and a neuroprotective agent with cell permeability and blood-brain barrier permeability. N-Acetylcysteine amide reduces ROS production.

Trolox is a vitamin E analogue, used in reducing oxidative stress or damage.

(-)-Epigallocatechin Gallate (EGCG) is a phenolic antioxidant polyphenol flavonoid found in plants such as green and black tea, which inhibits telomerase and DNA methyltransferase, blocks the activation of EGF receptors and HER-2 receptors, inhibits cellular oxidation, and prevents free radical damage to cells.

Liquiritin (Liquiritigenin-4'-O-glucoside) (LIQ) is a main component among the licorice flavonoids, and possesses anti-inflammatory and anti-cancer abilities.

Canthaxanthin (E 161g) is a red-orange carotenoid that belongs to the xanthophyll group. This naturally occurring pigment is present in bacteria, algae and some fungi.

Sodium dichloroacetate (BCA) , a specific inhibitor of pyruvate dehydrogenase kinase (PDK) with IC50 values of 183 and 80 μM for PDK2 and PDK4 respectively, has been shown to derepress a mitochondrial potassium-ion channel axis, trigger apoptosis in cancer cells, and inhibit tumor growth.

GSK5182 is a highly selective inverse estrogen-related receptor γ agonist (IC50 : 79 nM)

1. Berberine (Umbellatine) is a potent oral hypoglycemic agent with beneficial effects on lipid metabolism. 2. Berberine may as a broad-spectrum anti-microbial medicine, a complementary therapeutic agent for HIV AIDS. 3. Berberine seems to act as an herbal antidepressant and a neuroprotector against neurodegenerative disorders. 4. Berberine is used in histology for staining heparin in mast cells. As a natural dye, berberine has a colour index of 7516. 5. Berberine reduces hepatic fat content in rats with nonalcoholic fatty liver disease; also prevents proliferation of hepatic stellate cells (HSCs), which are central for the development of fibrosis during liver injury. 6. Berberine can ameliorate proinflammatory cytokines-induced intestinal epithelial tight junction damage in vitro, and berberine may be one of the targeted therapeutic agents that can restore barrier function in intestinal disease states. 7. Berberine has antineoplastic effects, including breast cancer, leukemia, melanoma, epidermoid carcinoma, hepatoma, pancreatic cancer, oral carcinoma, tongue carcinoma, glioblastoma, prostate carcinoma and gastric carcinoma, etc.

Isobavachalcone (Corylifolinin) is a chalcone constituent of Angelica keiskei, has potent anti-inflammatory activity, possible can ameliorate neuronal injury in brain diseases associated with inflammation.

Nobiletin (Hexamethoxyflavone) is a natural polymethoxylated flavone isolated from citrus peels with anti-inflammatory and anti-tumor activities. Nobiletin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa).

1. Albiflorin (Alibiflorin) has anticonvulsant effect for pain relief. 2. Albiflorin and paeoniflorin has neuroprotective action against Glu toxicity. 3. Albiflorin and paeoniflorin significantly ameliorated Glu-induced reduction of cell viability, nuclear and mitochondrial apoptotic alteration, reactive oxygen species accumulation and B-cell lymphoma 2 (Bcl-2) Bax ratio. 4. Albiflorin can serve as a new chemical marker for the quality control of Paeoniae Radix and the Chinese Pharmacopoeia can be updated, via has similar anti-inflammatory effects to paeoniflorin.

Calycosin-7-O-β-D-glucoside (calycosin-7-O-beta-D-glucopyranoside) exhibits a protective effect on rat hepatocytes, inhibits COX-2 activity, has antimicrobial properties, and is a promising anti-HIV agent. Additionally, it demonstrates scavenging activity against DPPH radicals and superoxide anions, alleviates osteoarthritis, and increases brain cell membrane fluidity in ischemia-reperfusion rats.

Astaxanthin (trans-Astaxanthin) is a keto-carotenoid in the terpenes class of chemical compounds. It is classified as a xanthophyll but it is a carotenoid with no vitamin A activity. It is present in most red-colored aquatic organisms. Astaxanthin has shown to mediate anti-oxidant and anti-inflammatory actions. It may be found in fish feed or some animal food as a color additive.

L-Ascorbic acid (Vitamin C) is a natural product that is a potent reducing agent and antioxidant. L-Ascorbic acid functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen. L-Ascorbic acid is used in the treatment of scurvy.

N-Acetyl-D-cysteine exhibits antioxidant activities and scavenges ROS through its thiol group reaction.

Aureusidin (Auresidin) shows antioxidant and lipoxygenase inhibitory activity with anti-inflammatory effects.

CPS-11 (N-(Hydroxymethyl)thalidomide) is a Thalidomide analogue with significant antitumor activity, exhibiting a broader and more potent effect on the MM (multiple myeloma) cell line.

Fusarochromanone (FC-101) is a mycotoxin produced by Fusarium marcescens with potent antiangiogenic, anticancer and antimalarial activities. Fusarochromanone induces cell death in COS7 and HEK293 cells through activation of the JNK pathway.

Procyanidin B2 (Proanthocyanidin B2) has vascular protective, anti-diabetic nephropathy, anti-cancer, anti-inflammatory, and antioxidant activities. Procyanidin B2 inhibited NLRP3 inflammasome activation via suppression of AP-1 pathway.

AKBA (3-O-Acetyl-11-keto-beta-boswellic acid), a natural component from frankincense, is a novel activator of Nrf2.

Methoxy-PMS (1-Methoxyphenazine methosulfate) is stable electron-transport mediator between NAD(P)H and tetrazolium dyes, can induce active oxygen formation.

CT-2584 is an anticancer agent that inhibits phospholipid signaling and kills tumor cells through the production of reactive oxygen intermediates. CT-2584 reduces NKEF-B expression in several tumor cell types. CT-2584 reduced tumor growth in SCID mice by causing shunting of ab initio phospholipid biosynthesis from phosphatidylcholine (PC) to phosphatidylinositol (PI) via PA.

Amentoflavone (3',8''-Biapigenin), as a potent inhibitor of CYP3A4 and CYP2C9, can interact with many other medications. CYP3A4 and CYP2C9 are proteins used for drug metabolism in the body. Amentoflavone also is an inhibitor of human cathepsin B. It has antimalarial activity in trials significant affinities towards the Delta-1, kappa opioid receptors (as an antagonist) and binds to benzodiazepine receptors. Amentoflavone may be a potential lead for a new type of anti-inflammatory agents having the dual inhibitory activity of group II phospholipase A2 and cyclooxygenase. Amentoflavone and quercetin differentially exerted suppression of PGE2 biosynthesis via downregulation of COX-2 iNOS expression.

Isochlorogenic acid A (3,5-Dicaffeoylquinic acid), a natural phenolic acid, exhibits antioxidant and anti-inflammatory properties.

L-Glutathione reduced (Glutathione) is a naturally occurring tripeptide found in cells as an endogenous antioxidant that scavenges oxygen free radicals. L-Glutathione reduced is a cofactor for certain enzymes and is involved in the rearrangement of protein disulfide bonds and the reduction of peroxides.

Cichoric Acid (Dicaffeoyltartaric acid) is a potent inhibitor of human immunodeficiency virus type-1 (HIV-1) integrase and the replication in tissues. It also a class of cannabinomimetics with CB2 receptor-dependent and independent.

Chlorogenic acid is a natural phenol found in honeysuckle. Chlorogenic acid has a wide range of biological activities including anti-inflammatory, antioxidant, antitumor, antimicrobial, and neuroprotective.

3-demethylcolchicine is a natural product isolated from Gloriosa superba.Inhibitory effect on the polymerization of purified bovine brain tubulin.

alpha-Mangostin (Mangostin) is a natural xanthonoid, a type of organic compound isolated from various parts of the mangosteen tree.

2-Methoxyestradiol (2-ME2) is an orally bioavailable estradiol metabolite with potential antineoplastic activity. 2-Methoxyestradiol inhibits angiogenesis by reducing endothelial cell proliferation and inducing endothelial cell apoptosis. This agent also inhibits tumor cell growth by binding to tubulin, resulting in antimitotic activity, and by inducing caspase activation, resulting in cell cycle arrest in the G2 phase, DNA fragmentation, and apoptosis.

Diphenyleneiodonium chloride (DPI)(DPI) is an irreversible inhibitor of iNOS and eNOS (IC50 values of 50 nM and 0.3 μM, respectively),and displays broad-spectrum bactericidal activity.

TPEN (TPEDA) is a specific cell-permeable heavy metal chelator.

Echinacoside is a natural polyphenolic compound with various kinds of pharmacological activities, such as anti-inflammatory, antioxidative, hepatoprotective, neuroprotective, nitric oxide radical-scavenging and vasodilative ones.

α-Thujone is an inhibitor of ACh with an IC50 value of 24.7μM.

Hesperidin (Cirantin) is a flavanone glycoside found in citrus fruits with antioxidant, anti-inflammatory, anti-carcinogenic, and antihypertensive and lipid-lowering activity.