Targeting redox heterogeneity to counteract drug tolerance in replicating Mycobacterium tuberculosis

Drug tolerance in Mycobacterium tuberculosis.

Although Mycobacterium tuberculosis is eradicated rapidly during therapy in some patients with pulmonary tuberculosis, it can persist for many months in others. This study examined the relationship between mycobacterial drug tolerance (delayed killing in vitro), persistence, and relapse. It was performed with 39 fully drug-susceptible isolates from a prospective trial of standard short-course a...

Targeting Drug Resistance Mechanisms in Mycobacterium tuberculosis

Historically, tuberculosis (TB) has left a scar as mankind’s greatest infectious killer. With evidence of TB infection dating back nine millenia to a Neolithic Eastern Mediterranean settlement [1], this ancient disease meant almost certain death to those infected, a phenomenon spanning pre-antibiotic eras from the time of the Roman empire all the way to the beginning of the 20th century. But wi...

A STUDY OF MYCOBACTERIUM TUBERCULOSIS DRUG RESISTANCE IN PULMONARY TUBERCULOSIS

Tuberculosis remains a major public health problem in both developing and developed countries. Drug-resistant tuberculosis is an increasing health problem and serious challenge to tuberculosis (TB) control programs. Information about the susceptibility pattern of Mycobacterium tuberculosis isolates against anti-tuberculosis drugs is an important aspect to TB control. The objectives of the s...

Mycobacterium tuberculosis has diminished capacity to counteract redox stress induced by elevated levels of endogenous superoxide

Mycobacterium tuberculosis (Mtb) has evolved protective and detoxification mechanisms to maintain cytoplasmic redox balance in response to exogenous oxidative stress encountered inside host phagocytes. In contrast, little is known about the dynamic response of this pathogen to endogenous oxidative stress generated within Mtb. Using a noninvasive and specific biosensor of cytoplasmic redox state...

Drug development targeting Mycobacterium tuberculosis signaling