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Searched keyword : Mycobacterium tuberculosis
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Label free quantification of proteins after the infection with M. tuberculosis. Macrophages isolated from seven patients were used in this study. Four conditions were compared.
Tuberculosis (TB) still remains a major public health problem with estimated 9 million incident cases and 1.5 million deaths in 2014 (WHO, Global Tuberculosis Report 2015). More worrisome is the emergence of multi drug resistance (MDR), or even extensively resistant (XDR) M. tuberculosis strains worldwide. The standardized treatment of pan-susceptible tuberculosis is the administration of two antibiotics (rifampicin and isoniazid) for six months, accompanied by two additional antibiotics (pyrazinamid and ethambutol) for the first two months. Although very efficacious, this treatment is very demanding due to the duration and the possible side effects. The treatment of MDR-TB is less standardized, with more toxic and poorly tolerated drugs, resulting in lower cure rates. Therefore, we need not only more molecules with antimycobacterial activity, but also, we urgently need new strategies to increase our therapeutic arsenal for treating MDR-TB. Only three new drugs, bedaquiline, delamanid and PA-824 have been tested in phase2/3 clinical trials.
In this context, the european funded project NAREB has been created. It brings together 14 partners from 8 EU Member and Associated States, and it aims to (i) screen different combinations of antibiotic drugs with nano-carriers (lipid, polymeric, biopolymeric) with and without targeting ligands, (ii) coload antibiotics in order to develop innovative therapeutic combination therapies (iii) test in vitro and in vivo the best therapeutic combinations. In particular, we will analyze more in-depth the effect of bedaquilin, new TB drugs and nano-carriers on the host/bacterial transcriptome using RNAseq.
Tuberculosis (TB), which is caused by Mycobacterium tuberculosis (MTB), is the deadliest disease due to a single infectious agent. Despite considerable efforts to fight the disease, TB remains a major public health problem. Even more worrying for the future, multidrug resistant (MDR) strains of MTB are continually emerging and about 10% of people with MDR-TB have extensively drug-resistant TB (XDR-TB). Drug-sensitive TB can be cured by a 6-month treatment using 4 antibiotics, but MDR-TB and extensively drug-resistant XDR-TB require treatment for up to 2 years with more toxic and costly second- and third-line drugs. Toxicity of these drugs is well described; it includes hepatotoxicity, liver injury, skin reactions, gastrointestinal and neurological disorders. However how MTB drugs influence the host response to MTB infection has been poorly addressed. The main goal of project is to understand how drugs interact with the host in order to improve the treatment.
Microbes are prone to rapid changes and they can either exploit or countervail their variation in a context-dependent manner. To this purpose, both genetic diversity and non-genetic phenotypic variati
Without new treatment development tuberculosis could cause about 70 million deaths by 2050, mostly due to the spread of multidrug-resistant strains. The standard drug regimen still builds on the first