Biomaterial Database

Uptake of minocycline and tetracycline by tetracycline-susceptible and -resistant bacteria. 1973

N A Kuck, and M Forbes

Minocycline (7-dimethylamino-6-demethyl-6-deoxytetracycline) is a new semisynthetic tetracycline with potent activity against tetracycline-susceptible bacterial pathogens and unique activity against tetracycline-resistant staphylococci. Studies to determine the basis for this unique activity showed that, whereas tetracycline-resistant staphylococci took up less (3)H-tetracycline than the susceptible cells, both the tetracycline-resistant and -susceptible cells accumulated equivalent amounts of (14)C-minocycline. In contrast, tetracycline-resistant Escherichia coli cells were relatively resistant to minocycline and accumulated less of both drugs than did the susceptible organisms. It is proposed that minocycline is effective against tetracycline-resistant staphylococci because of its ability to penetrate the cells sufficiently to reach inhibiting concentrations at sensitive reaction sites.

UI	MeSH Term	Description	Entries
D008911	Minocycline	A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections.	Akamin,Akne-Puren,Aknemin,Aknin-Mino,Aknosan,Apo-Minocycline,Arestin,Blemix,Cyclomin,Cyclops,Dentomycin,Dynacin,Icht-Oral,Klinomycin,Lederderm,Mestacine,Minakne,Mino-Wolff,Minocin,Minocin MR,Minoclir,Minocycline Hydrochloride,Minocycline Monohydrochloride,Minocycline, (4R-(4 alpha,4a beta,5a beta,12a beta))-Isomer,Minolis,Minomycin,Minoplus,Minotab,Minox 50,Mynocine,Akne Puren,Aknin Mino,Apo Minocycline,Hydrochloride, Minocycline,Icht Oral,Mino Wolff,Monohydrochloride, Minocycline
D004352	Drug Resistance, Microbial	The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).	Antibiotic Resistance,Antibiotic Resistance, Microbial,Antimicrobial Resistance, Drug,Antimicrobial Drug Resistance,Antimicrobial Drug Resistances,Antimicrobial Resistances, Drug,Drug Antimicrobial Resistance,Drug Antimicrobial Resistances,Drug Resistances, Microbial,Resistance, Antibiotic,Resistance, Drug Antimicrobial,Resistances, Drug Antimicrobial
D004926	Escherichia coli	A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.	Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D013210	Staphylococcus	A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are found on the skin and mucous membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.
D013752	Tetracycline	A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.	4-Epitetracycline,Achromycin,Achromycin V,Hostacyclin,Sustamycin,Tetrabid,Tetracycline Hydrochloride,Tetracycline Monohydrochloride,Topicycline,4 Epitetracycline