Abstract: The invention provides systems and methods for increased clinical efficacy of rifabutin against A. baumannii. The invention takes advantage of the discovery of a ferric-coprogen (FhuE) receptor that is responsible for the uptake of rifabutin into A. baumannii cells. Methods preferably include obtaining a sample from a patient suspected of having an infection; performing a test on the sample to identify an infection of A. baumannii in the patient; and providing a formulation of rifabutin for treating the patient that, when administered to the patient, maximizes a resultant AUC and/or Cmax. The method may include administering the formulation of rifabutin to the patient. Preferably the formulation is delivered to the patient, e.g., by intravenous injection and results in a Cmax is that greater than about 2 mg/L and optionally less than about 50 mg/L.

Abstract: The invention relates to compounds and pharmaceutical compositions useful in combination with tetracyclines in the treatment of bacterial infections caused by Gram-positive and Gram-negative pathogens, with particular efficacy in tetracycline resistant strains. These compounds specifically bind to TetR and therefore prevent the transcriptional activation of tet resistance genes. The compounds have a potentiating effect on the activity of members of the tetracycline family, in particular of tetracycline, minocycline, doxycycline and tigecycline, in the treatment of tetracycline susceptible, intermediate and tetracycline resistant pathogens.

Abstract: The invention relates to compounds and pharmaceutical compositions useful in combination with tetracyclines in the treatment of bacterial infections caused by Gram-positive and Gram-negative pathogens, with particular efficacy in tetracycline resistant strains. These compounds specifically bind to TetR and therefore prevent the transcriptional activation of tet resistance genes. The compounds have a potentiating effect on the activity of members of the tetracycline family, in particular of tetracycline, minocycline, doxycycline and tigecycline, in the treatment of tetracycline susceptible, intermediate and tetracycline resistant pathogens.

Abstract: The invention relates to a pharmaceutical composition comprising a compound of formula (1) wherein R1 is optionally substituted phenyl, optionally substituted pyridyl or optionally substituted indolyl; R2 is (CH2)n wherein n is 0, 1, 2, 3 or 4; R3 is (CH2)mR3A wherein m is 0, 1, 2, 3 or 4, and R3A is methyl, isopropyl, tert-butyl, OCH3, OH, optionally substituted phenoxy, C?CH, C?N, optionally substituted phenyl, furanyl or thienyl; A is a ring containing X1 with the meaning O, S, NH, N(CH3) or CH2; and X2 is O, S or NH; and a compound of formula (2) wherein R4 is optionally substituted phenyl, optionally substituted pyridyl, optionally substituted indolyl, —NR7R8; or —NH—N?CH—R9; and substituents R5 to R9 have the meanings indicated in the description, in particular ethionamide. The pharmaceutical composition is useful, e.g., in the treatment of multidrug-resistant tuberculosis.

Abstract: The invention relates to the use of a skin permeating compound such as phloretin for controlling transgene expression under control of the Pseudomonas putida DOT-T1E-derived bacterial repressor TtgR, to a vector comprising the genetic code for the repressor TtgR fused to a transactivation or a transrepressor domain, to a vector comprising a TtgR-specific operator sequence (OTtgR), a promoter and a polynucleotide coding for an endogenous or exogenous protein, and to a mammalian cell transiently or constitutively transfected with the mentioned vectors, and to mammals comprising such cells in nano- or microcontainers.

Abstract: The invention relates to a pharmaceutical composition comprising a compound of formula (1) wherein R1 is optionally substituted phenyl, optionally substituted pyridyl or optionally substituted indolyl; R2 is (CH2)n wherein n is 0, 1, 2, 3 or 4; R3 is (CH2)mR3A wherein m is 0, 1, 2, 3 or 4, and R3A is methyl, isopropyl, tert-butyl, OCH3, OH, optionally substituted phenoxy, C?CH, C?N, optionally substituted phenyl, furanyl or thienyl; A is a ring containing X1 with the meaning O, S, NH, N(CH3) or CH2; and X2 is O, S or NH; and a compound of formula (2) wherein R4 is optionally substituted phenyl, optionally substituted pyridyl, optionally substituted indolyl, —NR7R8; or —NH—N?CH—R9; and substituents R5 to R9 have the meanings indicated in the description, in particular ethionamide. The pharmaceutical composition is useful, e.g., in the treatment of multidrug-resistant tuberculosis.

Abstract: The invention relates to the use of a skin permeating compound such as phloretin for controlling transgene expression under control of the Pseudomonas putida DOT-T1E-derived bacterial repressor TtgR, to a vector comprising the genetic code for the repressor TtgR fused to a transactivation or a transrepressor domain, to a vector comprising a TtgR-specific operator sequence (OTtgR), a promoter and a polynucleotide coding for an endogenous or exogenous protein, and to a mammalian cell transiently or constitutively transfected with the mentioned vectors, and to mammals comprising such cells in nano- or microcontainers.