Aim: To evaluate modulatory effect of verapamil (VP) in rifampicin (RIF) activity and its effect in efflux pumps (EPs) transcript levels in Mycobacterium tuberculosis. Materials & methods: RIF and VP minimal inhibitory concentration, combinatory effect and detection of mutations were determined in 16 isolates. EPs transcript levels were determined in four isolates by real-time PCR after exposure to drugs. Results: VP showed good combinatory effect among RIF-resistant isolates. This effect was also observed in the relative transcript levels of EPs, mainly after 72h of exposure, depending on the EP gene, genotype and the resistance profile of the isolate. Conclusion: Additional regulatory mechanisms in the EP activities, as well as, interactions with other drug-specific resistance mechanisms need further investigation in M. tuberculosis.
机构:
TERI Univ, Dept Biotechnol, New Delhi 110070, India
Jawaharlal Nehru Univ, Sch Biotechnol, New Delhi 110067, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
Singh, Aditi
Grover, Sonam
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IIT Delhi, Kusuma Sch Biol Sci, New Delhi 110016, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
Grover, Sonam
Sinha, Siddharth
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TERI Univ, Dept Biotechnol, New Delhi 110070, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
Sinha, Siddharth
Das, Mriganko
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机构:
Jawaharlal Nehru Univ, Sch Biotechnol, New Delhi 110067, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
Das, Mriganko
Somvanshi, Pallavi
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TERI Univ, Dept Biotechnol, New Delhi 110070, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
Somvanshi, Pallavi
Grover, Abhinav
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机构:
Jawaharlal Nehru Univ, Sch Biotechnol, New Delhi 110067, IndiaTERI Univ, Dept Biotechnol, New Delhi 110070, India
机构:
Univ Claude Bernard Lyon 1, Ecole Normale Super Lyon, CIRI Ctr Int Rech Infectiol, CNRS,UMR5308,Inserm,U1111, Lyon, France
Hosp Civils Lyon, Inst Agents Infect, Lab Bacteriol, Lyon, France
Univ Lyon 1, Fac Med & Pharm Lyon, Lyon, FranceUniv Claude Bernard Lyon 1, Ecole Normale Super Lyon, CIRI Ctr Int Rech Infectiol, CNRS,UMR5308,Inserm,U1111, Lyon, France
Dumitrescu, Oana
Lyon TB Study Grp
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机构:Univ Claude Bernard Lyon 1, Ecole Normale Super Lyon, CIRI Ctr Int Rech Infectiol, CNRS,UMR5308,Inserm,U1111, Lyon, France
机构:
Istanbul Univ, Dept Med Microbiol, Inst Grad Studies Hlth Sci, Istanbul, Turkey
Istanbul Sabahattin Zaim Univ, Food & Agr Res Ctr, Istanbul, TurkeyIstanbul Univ, Dept Med Microbiol, Inst Grad Studies Hlth Sci, Istanbul, Turkey
Servi, Esra Yildirim
Uzun, Meltem
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机构:
Istanbul Univ, Istanbul Fac Med, Dept Med Microbiol, Istanbul, TurkeyIstanbul Univ, Dept Med Microbiol, Inst Grad Studies Hlth Sci, Istanbul, Turkey
Uzun, Meltem
JOURNAL OF ISTANBUL FACULTY OF MEDICINE-ISTANBUL TIP FAKULTESI DERGISI,
2022,
85
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: 216
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