scholarly journals Increased vaccine efficacy against tuberculosis of recombinant Mycobacterium bovis bacille Calmette-Guerin mutants that secrete listeriolysin

2005 ◽  
Vol 115 (9) ◽  
pp. 2472-2479 ◽  
Author(s):  
L. Grode
Molecules ◽  
2011 ◽  
Vol 16 (6) ◽  
pp. 5168-5181 ◽  
Author(s):  
Clement Chan ◽  
Yok Hian Chionh ◽  
Chia-Hua Ho ◽  
Kok Seong Lim ◽  
I. Ramesh Babu ◽  
...  

Author(s):  
Christoph Lange ◽  
Peter Aaby ◽  
Marcel A Behr ◽  
Peter R Donald ◽  
Stefan H E Kaufmann ◽  
...  

Vaccines ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Mario Alberto Flores-Valdez

In 2021, most of the world was reasonably still concerned about the COVID-19 pandemic, how cases were up and down in different countries, how the vaccination campaigns were ongoing, and most people were familiar with the speed with which vaccines against SARS-Co-V2 were developed, analyzed, and started to be applied in an attempt to curb the pandemic. Because of this, it may have somehow passed relatively inadvertently for people outside of the field that the vaccine used to control tuberculosis (TB), Mycobacterium bovis Bacille Calmette-Guérin (BCG), was first applied to humans a century ago. Over these years, BCG has been the vaccine applied to most human beings in the world, despite its known lack of efficacy to fully prevent respiratory TB. Several strategies have been employed in the last 20 years to produce a novel vaccine that would replace, or boost, immunity and protection elicited by BCG. In this work, to avoid potential redundancies with recently published reviews, I only aim to present my current thoughts about some of the latest findings and outstanding questions that I consider worth investigating to help develop a replacement or modified BCG in order to successfully fight TB, based on BCG itself.


2019 ◽  
Vol 221 (6) ◽  
pp. 989-999
Author(s):  
Jason D Simmons ◽  
Glenna J Peterson ◽  
Monica Campo ◽  
Jenny Lohmiller ◽  
Shawn J Skerrett ◽  
...  

Abstract Novel antimicrobials for treatment of Mycobacterium tuberculosis are needed. We hypothesized that nicotinamide (NAM) and nicotinic acid (NA) modulate macrophage function to restrict M. tuberculosis replication in addition to their direct antimicrobial properties. Both compounds had modest activity in 7H9 broth, but only NAM inhibited replication in macrophages. Surprisingly, in macrophages NAM and the related compound pyrazinamide restricted growth of bacille Calmette-Guérin but not wild-type Mycobacterium bovis, which both lack a functional nicotinamidase/pyrazinamidase (PncA) rendering each strain resistant to these drugs in broth culture. Interestingly, NAM was not active in macrophages infected with a virulent M. tuberculosis mutant encoding a deletion in pncA. We conclude that the differential activity of NAM and nicotinic acid on infected macrophages suggests host-specific NAM targets rather than PncA-dependent direct antimicrobial properties. These activities are sufficient to restrict attenuated BCG, but not virulent wild-type M. bovis or M. tuberculosis.


2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Youn Young Choi ◽  
Mi Seon Han ◽  
Hoan Jong Lee ◽  
Ki Wook Yun ◽  
Chang Ho Shin ◽  
...  

2012 ◽  
Vol 1 (3) ◽  
Author(s):  
Vincent Fradet ◽  
Christiane Gaudreau ◽  
Paul Perrotte ◽  
Jean Côté ◽  
Jean-Marie Paquin

Intravesical bacille Calmette-Guérin (BCG) therapy is the most effective treatmentfor high-risk superficial bladder cancer. Severe systemic complications are rare, but may occur in approximately 1% of cases. We report a severe complicationof intravesical BCG: a disseminated Mycobacterium bovis infectionwith biopsy-proven granulomatous hepatitis in a patient with bladder cancer. We also elaborate on the different management alternatives.


2006 ◽  
Vol 7 (8) ◽  
pp. 684-687 ◽  
Author(s):  
K Turcotte ◽  
J C Loredo-Osti ◽  
P Fortin ◽  
E Schurr ◽  
K Morgan ◽  
...  

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