s. aureus

Gatifloxacin hydrochloride (AM-1155 hydrochloride) is a fourth-generation fluoroquinolone antibiotic that inhibits bacterial DNA gyrase and topoisomerase IV.

Stearyl glycyrrhetinate, the stearyl ester of 18-β-glycyrrhetinic acid, has been demonstrated to improve antiviral effects, reduce inflammation and suppress allergies in the pharmaceutical and cosmetic industry.

Mycaminosyltylonolide is a macrolide antibiotic that is tylonolide having a beta-D-mycaminosyl residue attached at position 5. Mycaminosyltylonolide is a potent antibiotic with antibacterial activity and inhibits luciferase synthesis.

Glycol chitosan, a chitosan derivative with hydrophilic ethylene glycol branches, inhibits E. coli, S. aureus, and S. enteritidis growth (MICs: 4 μg mL, 32 μg mL, and <0.5 μg mL), and enhances membrane permeability and leakage in Glycine max [Harosoy 63W] cells.

Blasticidin S HCl is a peptide-based nucleoside antibiotic (antibiotic) isolated from Streptomyces griseochromogenes that inhibits prokaryotic and eukaryotic protein synthesis by interfering with the formation of peptide bonds in the ribosome.

Moracin C, a natural compound found in Morus mesozygia, Morus alba var. multicaulis, is an anti-inflammatory agent. moracin C inhibits nitric oxide (NO) release and LPS-activated reactive oxygen species (ROS) in cells.

Penicillin V Potassium (Phenoxymethylpenicillin potassium salt) is an orally administered, broad-spectrum penicillin antibiotic used for treating mild to moderate infections caused by susceptible gram-positive organisms.

Lauric Acid (Dodecylic acid),which is found naturally in various plant and animal fats and oils, is a saturated medium-chain fatty acid with a 12-carbon backbone. It is a major component of coconut oil and palm kernel oil.

Aureusimine B, also known as phevalin, is a natural pyrazinone produced by certain fungi and by Staphylococcus spp., including S. aureus. Its synthesis appears to be initiated by a conserved nonribosomal peptide synthetase that creates a dipeptide (phenylalanine-valine) aldehyde, which then undergoes cyclization and oxidation. Aureusimine B inhibits calpain in a casein hydrolysis assay (IC50 = 1.3 μM), contributes to S. aureus infection in mice, and alters human keratinocyte gene expression.

Dihydropinosylvinin is an phytoalexin, it shows antifungal activity against Cladosporium cladosporioides, Botryodiplodia theobromae, Aspergillus niger and Penicillium schlerotgenum, it also exhibits strong antibacterial activity against Bacillus cereus, S

Pachybasin is an anthraquinone fungal metabolite. Pachybasin shows antimicrobial activities against E. coli, B. subtilis, M. luteus, S. cerevisiae, C. albicans, A. niger, and A. flavus, with MIC values of 64.0 μg mL, and against S. aureus and F. oxysporum with MIC values of 32.0 and 16.0 μg mL respectively.

2,5-Dihydroxybenzaldehyde (Gentisaldehyde) has antioxidant activity against Mycobacterium avium subsp. Paratuberculosis. 2,5-Dihydroxybenzaldehyde also inhibits S. aureus strains(MIC50: 500 mg L).

Oxychelerythrine shows high modulatory activity enhancing the susceptibility of the S. aureus ATCC 6538 to all the tested antibiotics from two to four-fold. It also shows antifeeding activities against Tribolium castaneum adults, with the EC50 of 192.32 p

Angustifoline is a natural alkaloid isolated from Lupinus angustifolius L., exhibiting antimicrobial and anticancer properties. It inhibits the growth of various bacteria(S. aureus, B. subtilis, E. coli, P. aeruginosa and B. thuringiensis) and induces autophagy and apoptosis in human colon cancer cells.

Mahanimbine is found in the roots, leaves and stems of Murraya koenigii and is an orally active alkaloid extracted from Murraya koenigii. Bifidobacterium bifidum leaves on histopathological changes in pancreatic beta cells of streptozotocin-induced diabetic rats.

Violacein is a bacterial metabolite originally isolated from C. violaceum that has antibacterial and antiprotozoal activities.[1] [2] It is produced by C. violaceum as a purple pigment in response to N-hexanoyl homoserine lactone , a property that has been modified to create a strain of C. violaceum used in detecting quorum-sensing molecules.[3] Violacein is active against Gram-positive bacteria, including B. subtilis and S. aureus (MICs = 0.8 and 1.6 µM, respectively). It is also active against P. falciparum, including chloroquine-susceptible and -resistant strains (IC50s = 0.85 and 0.63 µM, respectively).[2] It reduces parasitemia in a mouse model of nonlethal P. chabaudi chabaudi infection when administered at a dose of 7.5 mg/kg and increases survival in a mouse model of lethal P. chabaudi chabaudi infection. Violacein permeabilizes the cytoplasmic membrane of bacterial cells but does not affect the cell wall.[1]

IB-96212 is a macrolide that has been found in Micromonospora and has antibacterial and anticancer activities. It is active against M. luteus, B. subtilis, and S. aureus (MICs = 0.4, 100, and 100 µg ml, respectively). IB-96212 induces death in P388, A549, HT-29, and SK-MEL-28 cells (IC50s = 0.0001, 1, 1, and 1 µg ml, respectivel).

Bostrycin, an anthraquinone derived from B. alpestre, exhibits a broad spectrum of biological activities including antibacterial, antiproliferative, and phytotoxic effects. This compound demonstrates efficacy against Gram-positive bacteria like methicillin-resistant S. aureus (MRSA), M. tuberculosis, and C. botulinum. Additionally, Bostrycin shows antiproliferative action against A549 lung adenocarcinoma cells, particularly by arresting the cell cycle at the G0/G1 phase and triggering apoptosis within a concentration range of 10 to 30 µM. As a phytotoxin, it causes necrosis in water hyacinth leaves at approximately 7 µg/ml. Furthermore, Bostrycin serves as a protein immobilization cross-linking agent, managing to preserve its bacteriostatic properties when affixed to nonwoven polypropylene fabric.

Conocarpan has antinociceptive effects. Conocarpan is quite active against S. aureus and B. subtilis with MIC of 6.25 micrograms/ml, it also shows activity against M. tuberculosis (MIC=15.6 ug/ml). Conocarpan shows considerable activity against epimastigo

Isoapetalic acid and apetalic acid exhibit cytotoxic activities towards both cancer cell lines(human breast cancer (MCF-7) and human lung carcinoma (A-549) cell lines) and both Gram-positive bacteria(two Gram-positive bacteria, S. aureus and B. subtilis a

Xanthoquinodin A1 is a fungal metabolite that has been found inHumicolaand has diverse biological activities.1,2It inhibitsE. tenellaschizont formation in BHK-21 cells with a minimum effective concentration (MEC) value of 0.02 μg/ml.1Xanthoquinodin A1 is active againstB. subtilis,M. luteus,S. aureus,A. laidlawii, andB. fragilisin a disc assay when used at a concentration of 1 mg/ml. It is also active againstB. cereus(MIC = 0.44 μM).2Xanthoquinodin A1 is cytotoxic to KB, MCF-7, and NCI H187 cancer cells. 1.Tabata, N., Suzumura, Y., Tomoda, H., et al.Xanthoquinodins, new anticoccidial agents produced by Humicola sp. Production, isolation and physico-chemical and biological propertiesJ. Antibiot. (Tokyo)46(5)749-755(1993) 2.Tantapakul, C., Promgool, T., Kanokmedhakul, K., et al.Bioactive xanthoquinodins and epipolythiodioxopiperazines from Chaetomium globosum 7s-1, an endophytic fungus isolated from Rhapis cochinchinensis (Lour.) MartNat. Prod. Res.34(4)494-502(2020)

Terpendole I is a fungal metabolite that has been found in A. yamanashiensis.1 It is a weak inhibitor of acyl-coenzyme A:cholesterol acyltransferase (ACAT; IC50 = 145 μM) and is active against the bacteria B. cereus and B. subtilis (MICs = 100 μg/ml for both) but not S. aureus, P. aeruginosa, or K. pneumoniae (MICs = >200 μg/ml for all) or the fungus C. albicans (MIC = 200 μg/ml).1,2 It is cytotoxic to HeLa cells with an IC50 value of 52.6 μM.3 |1. Tomoda, H., Tabata, N., Yang, D.-J., et al. Terpendoles, novel ACAT inhibitors produced by Albophoma yamanashiensis. III. Production, isolation and structure elucidation of new components. J. Antibiot. (Tokyo) 48(8), 793-804 (1995).|2. Zhao, J.-C., Wang, Y.-L., Zhang, T.-Y., et al. Indole diterpenoids from the endophytic fungus Drechmeria sp. as natural antimicrobial agents. Phytochemistry 148, 21-28 (2018).|3. Nagumo, Y., Motoyama, T., Hayashi, T., et al. Structure-activity relationships of terpendole E and its natural derivatives. ChemistrySelect 2(4), 1533-1536 (2017).

Aspergillin PZ is a fungal metabolite originally isolated from A. awamori. It induces morphological deformation of P. oryzae conidia when used at a concentration of 89 nM. Aspergillin PZ is active against S. epidermidis (MIC = 20 μM) but not S. aureus, E. coli, or B. cereus (MICs = >20 μM). It is cytotoxic to HL-60 promyelocytic leukemia cells (IC50 = 56.61 μM) but not THP-1 acute monocytic leukemia or PC3 prostate cancer cells (IC50s = >80 μM).

Oxychlororaphine (phenazine-1-carboxamide) inhibits strongly the growth of Streptomyces sp. 441.