TY - JOUR
KW - Resistance
KW - Treatment
KW - Mycobacteria tuberculosis
KW - Mycobacteria leprae
AU - Lobato LS
AU - Rosa P
AU - Ferreira JS
AU - Neumann AS
AU - Silva MG
AU - Nascimento DC
AU - Soares CT
AU - Pedrini SCB
AU - Oliveira DL
AU - Monteiro CP
AU - Pereira GMB
AU - Ribeiro-Alves M
AU - Hacker MA
AU - Moraes M
AU - Pessolani M
AU - Duarte RS
AU - Lara F
AB - <p>Mycobacterium leprae and Mycobacterium tuberculosis antimicrobial resistance has been followed with great concern during the last years, while the need for new drugs able to control leprosy and tuberculosis, mainly due to XDR-TB, is pressing. Our group has recently described that M. leprae is able to induce lipid body biogenesis and cholesterol accumulation in macrophages and Schwann cells, facilitating its viability and replication. Considering these previous results, we investigated the efficacy of two statins on the intracellular viability of mycobacteria within the macrophage, and atorvastatin effect on BALB/c mice M. leprae infection. We observed that intracellular mycobacteria viability decreased markedly after incubation with both statins, but atorvastatin showed the best inhibitory effect when combined with rifampin. Using Shepard's model we observed atorvastatin efficacy in control M. leprae and inflammatory infiltrate in the BALB/c footpad, in a serum cholesterol level dependent way. We conclude that statins contribute to macrophage-bactericidal activity against M. bovis, M. leprae and M. tuberculosis. It is likely that statins association with the actual multidrug therapy could effectively reduce mycobacteria viability and tissue lesion in Leprosy and Tuberculosis patients, although epidemiological studies are still needed for confirmation.</p>
BT - Antimicrobial Agents and Chemotherapy
C1 - http://www.ncbi.nlm.nih.gov/pubmed/25049257?dopt=Abstract
DO - 10.1128/AAC.01826-13
J2 - Antimicrob. Agents Chemother.
LA - eng
N2 - <p>Mycobacterium leprae and Mycobacterium tuberculosis antimicrobial resistance has been followed with great concern during the last years, while the need for new drugs able to control leprosy and tuberculosis, mainly due to XDR-TB, is pressing. Our group has recently described that M. leprae is able to induce lipid body biogenesis and cholesterol accumulation in macrophages and Schwann cells, facilitating its viability and replication. Considering these previous results, we investigated the efficacy of two statins on the intracellular viability of mycobacteria within the macrophage, and atorvastatin effect on BALB/c mice M. leprae infection. We observed that intracellular mycobacteria viability decreased markedly after incubation with both statins, but atorvastatin showed the best inhibitory effect when combined with rifampin. Using Shepard's model we observed atorvastatin efficacy in control M. leprae and inflammatory infiltrate in the BALB/c footpad, in a serum cholesterol level dependent way. We conclude that statins contribute to macrophage-bactericidal activity against M. bovis, M. leprae and M. tuberculosis. It is likely that statins association with the actual multidrug therapy could effectively reduce mycobacteria viability and tissue lesion in Leprosy and Tuberculosis patients, although epidemiological studies are still needed for confirmation.</p>
PY - 2014
T2 - Antimicrobial Agents and Chemotherapy
TI - Statins increase rifampin mycobactericidal effect.
SN - 1098-6596
ER -