Bacterial Infection

Rapamycin (Sirolimus; AY 22989) is a potent and specific blood-brain barrier-transmissible mTOR inhibitor with an IC₅₀ of 0.1 nM in HEK293 cells. Rapamycin is a molecular glue that binds FKBP12 and mTOR proteins together, thereby inhibiting mTOR kinase activity. Rapamycin binds to FKBP12 and specifically acts as an allosteric inhibitor of mTORC1. Rapamycin is an autophagy activator, an immunosuppressant.

Dimethyl sulfoxide (DMSO), meets analytical specification of Ch.P. is an aprotic solvent that dissolves polar and non-polar compounds, including water-insoluble therapeutic and toxic agents. Dimethyl sulfoxide (DMSO) has a strong affinity for water and can rapidly penetrate or enhance the penetration of other substances into biological membranes. Dimethyl sulfoxide also has potential free radical scavenging and anticholinesterase effects and may affect coagulation activity. Dimethyl sulfoxide also induces histamine release from mast cells but is thought to have low systemic toxicity. Dimethyl sulfoxide also exhibits antifreeze and antibacterial properties.
MCE provides Dimethyl sulfoxide that complies with the inspection standards (Ch.P) of Part 4 of the Chinese Pharmacopoeia (2020 Edition). Amicrobic, low endotoxin, can be used in various biochemical experiments such as drug dissolution.

Dexamethasone (Hexadecadrol) is a glucocorticoid receptor agonist, apoptosis inducer, and common disease inducer in experimental animals, constructing models of muscle atrophy, hypertension, and depression. Dexamethasone can inhibit the production of inflammatory miRNA-155 exosomes in macrophages and significantly reduce the expression of inflammatory factors in neutrophils and monocytes. Dexamethasone also has potential for use in COVID-19 research.

Lipopolysaccharides, from E. coli O55:B5 (LPS, from Escherichia coli (O55:B5)) are endotoxins and TLR4 activators extracted from Escherichia coli (E. coli O55:B5) and are classified as S (smooth) type LPS. Lipopolysaccharides, from E. coli O55:B5 possess the typical three-part structure: O-antigen, core oligosaccharide, and lipid A. Lipopolysaccharides, from E. coli O55:B5 activate TLR-4 in immune cells, exhibit high pyrogenicity, and demonstrate dose and serotype specificity. Lipopolysaccharides, from E. coli O55:B5 can be widely used to induce cellular inflammation and establish animal models related to inflammation.
It is recommended to prepare a solution with concentration ≥2 mg/mL. Vortex thoroughly for more than 10 minutes. Due to the adsorption characteristics of LPS, silanized container or low adsorption centrifuge tubes should be used for aliquoting and storage, and mix thoroughly before use.

Staurosporine is a potent, ATP-competitive and non-selective inhibitor of protein kinases with IC₅₀s of 6 nM, 15 nM, 2 nM, and 3 nM for PKC, PKA, c-Fgr, and Phosphorylase kinase respectively. Staurosporine also inhibits TAOK2 with an IC₅₀ of 3 μM. Staurosporine is an apoptosis inducer.

CCCP is an oxidative phosphorylation (OXPHOS) uncoupler. CCCP induces activation of PINK1 leading to Parkin Ser65 phosphorylation.

Cholesterol (from animal) is the major sterol in mammals. It is making up 20-25% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol (from animal) plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins. Cholesterol (from animal) is also an endogenous estrogen-related receptor α (ERRα) agonist.

Resveratrol (trans-Resveratrol; SRT501) is a CNS-penetrant natural polyphenolic phytoalexin that possesses anti-oxidant, anti-inflammatory, cardioprotective, and anti-cancer properties. Resveratrol (SRT 501) has a wide spectrum of targets including mTOR, JAK, β-amyloid, Adenylyl cyclase, IKKβ, DNA polymerase. Resveratrol also is a specific SIRT1 activator. Resveratrol is a potent pregnane X receptor (PXR) inhibitor. Resveratrol is an Nrf2 activator, ameliorates aging-related progressive renal injury in mice model. Resveratrol increases production of NO in endothelial cells.

Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy.

Brefeldin A (BFA) is a lactone antibiotic and a specific inhibitor of protein trafficking. Brefeldin A blocks the transport of secreted and membrane proteins from endoplasmic reticulum to Golgi apparatus. Brefeldin A is also an autophagy and mitophagy inhibitor. Brefeldin A inhibits HSV-1 and has anti-cancer activity.

G-418 disulfate (Geneticin sulfate), is an aminoglycoside antibiotic, inhibits protein synthesis in eukaryotes and prokaryotes. G-418 disulfate is commonly used as a selective agent for eukaryotic cells.

Puromycin dihydrochloride (CL13900 dihydrochloride), an aminonucleoside antibiotic, inhibits protein synthesis.

Puromycin dihydrochloride is the dihydrochloride salt of puromycin. Puromycin is an aminoglycoside antibiotic that inhibits protein synthesis.

Estradiol (β-Estradiol) is a steroid hormone and the major female sex hormone. Estradiol can up-regulate the expression of neural markers of human endometrial stem cells (hEnSCs) and promote their neural differentiation. Estradiol can be used for the research of cancers, neurodegenerative diseases and neural tissue engineering.

Hygromycin B is an aminoglycoside antibiotic active against prokaryotic and eukaryotic cells.

Doxycycline, an antibiotic, is an orally active and broad-spectrum metalloproteinase (MMP) inhibitor. Doxycycline shows antibacterial activity and anti-cancer cell proliferation activity.

5-Azacytidine (Azacitidine; 5-AzaC; Ladakamycin) is a nucleoside analogue of cytidine that specifically inhibits DNA methylation. 5-Azacytidine is incorporated into DNA to covalently trap DNA methyltransferases and contributes to reverse epigenetic changes. 5-Azacytidine induces cell autophagy.

Nigericin is an antibiotic derived from Streptomyces hygroscopicus that act as a K⁺/H⁺ ionophore, promoting K⁺/H⁺ exchange across mitochondrial membranes. Nigericin is a NLRP3 activator. Nigericin shows promising anti-cancer activities through decreasing intracellular pH (pHi), and inactivation of Wnt/β-catenin signals. Nigericin induces pyroptosis through caspase 1/GSDMD in TNBC.

Neomycin sulfate, an aminoglycoside antibiotic, exerts antibacterial activity through irreversible binding of the nuclear 30S ribosomal subunit, thereby blocking bacterial protein synthesis. Neomycin sulfate is a known phospholipase C (PLC) inhibitor. Neomycin sulfate potently inhibits both the nuclear translocation of angiogenin and angiogenin-induced cell proliferation and angiogenesis. Neomycin sulfate inhibits IP3-mediated Ca²⁺ release, MgATP-dependent Ca²⁺ uptake, and electrical excitation-evoked skeletal muscle Ca²⁺ transients. Neomycin sulfate depletes gut microbiota in specific mouse models, causes hearing impairment, and kidney damage with prolonged exposure. Neomycin sulfate can be used for the research of cancer.

Everolimus (RAD001) is a Rapamycin (HY-10219) derivative and a potent, selective, orally active, blood-brain barrier-permeable mTOR1 inhibitor. Everolimus binds to FKBP-12 to generate an immunosuppressive complex. Everolimus inhibits tumor cells proliferation and induces cell apoptosis and autophagy. Everolimus has potent immunosuppressive and anticancer activities.