Antimicrobianos

Borrelidin is a potent antibiotic of the polyketide class, which is isolated from various Streptomyces species. Its mode of action is characterized by its inhibition of threonyl-tRNA synthetase, effectively disrupting protein synthesis within bacteria. Additionally, Borrelidin is known for its unique anti-angiogenic properties, which result from the inhibition of endothelial cell proliferation, making it a compound of interest in cancer research.

Tuberculosis inhibitor 3 is a synthesized chemical compound designed to target the Mycobacterium tuberculosis bacterium, which is the causative agent of tuberculosis. This inhibitor is derived through advanced chemical synthesis techniques, involving the modification of specific molecular structures to enhance its binding affinity and specificity toward the bacterial cellular targets.

(2RS,4S)-2-[[(Phenylacetyl)amino]methyl]-5,5-dimethylthiazolidine-4-carboxylic acid, commonly referred to as penilloic acids, is a hydrolytic degradation product of benzylpenicillin. It is derived through the enzymatic or chemical cleavage of the β-lactam ring of benzylpenicillin, which is a classic β-lactam antibiotic.

Oxpoconazole fumarate is a systemic antifungal agent, which is a synthetic compound derived from chemical synthesis. It functions by inhibiting the biosynthesis of ergosterol, a critical component of fungal cell membranes, ultimately disrupting cell growth and replication. This inhibition interferes with the integrity and functionality of the fungal cell membrane, leading to cell death.

Acepromazine hydrochloride is a phenothiazine derivative tranquilizer, which is synthesized chemically. Its mode of action is primarily through antagonism of dopamine receptors in the central nervous system, leading to a sedative effect. Additionally, it exerts peripheral actions, including alpha-adrenergic blockade and diminished release of hypothalamic and hypophyseal hormones, contributing to vasodilation and other physiological effects.

Beauvericin is a cyclic peptide that is isolated from the fungus Fusarium. It has been shown to have antimicrobial activity against bacteria, as well as a variety of other biological properties. Beauvericin has been shown to inhibit mitochondrial membrane potential and induce toxicity in some animal models. Beauvericin also inhibits protein synthesis and causes cell death by inhibiting DNA polymerase activity. This compound is active against cancer cells, including HL-60 cells, which are derived from human lymphocytes and are used as a model for leukemia. Beauvericin can be extracted from an ETOA extract of the fungus Fusarium oxysporum; this extract has shown anti-cancer effects in vitro assays.

Piericidin A is a microbial metabolite, specifically a type of polyketide, which is derived from the bacterium of the genus Streptomyces. This compound acts as an electron transport chain inhibitor by specifically binding to the ubiquinone binding site of complex I (NADH:ubiquinone oxidoreductase) in mitochondria. This mode of action results in the disruption of ATP production through oxidative phosphorylation.

Dequalinium chloride is a novel, broad spectrum antimicrobial agent with a mechanism of action that inhibits the mitochondria-dependent respiratory chain. Studies have shown that it inhibits the growth of resistant microorganisms in cell-based experiments and in bacterial infections. Dequalinium chloride also has cytopathic effects on thp-1 cells, which are specific for Mycobacterium tuberculosis. In addition to inhibiting mitochondria-dependent respiration, this compound also increases acetylcholine receptor sensitivity in A549 lung cancer cells. Dequalinium chloride is a quaternary ammonium cation and has been shown to be effective against clinical isolates and inhibitory concentrations of a variety of virus species, including human rhinovirus (HRV) and Coxsackie virus type B4 (CoxB4).

Norfloxacin methyl ester is a synthetic derivative of the fluoroquinolone antibiotic, norfloxacin, which is sourced from chemical synthesis. Its mode of action involves inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes crucial for DNA replication, transcription, repair, and recombination. This specific mechanism disrupts bacterial replication and cell division, leading to bacterial cell death.

Dicloxacillin sodium salt monohydrate is a beta-lactam antibiotic with action on bacterial cell wall synthesis and is used for treating infections caused by penicillinase-producing bacteria.