scholarly journals Mycobacterium abscessus, un modèle de résistance aux différentes classes d’antibiotiques

2021 ◽  
Vol 37 (11) ◽  
pp. 993-1001
Author(s):  
Morgane Illouz ◽  
Matthéo Alcaraz ◽  
Françoise Roquet-Banères ◽  
Laurent Kremer

Mycobacterium abscessus est une bactérie non tuberculeuse, environnementale, à croissance rapide, qui est responsable d’infections pulmonaires sévères, notamment chez les patients atteints de mucoviscidose. Le traitement actuel combine l’utilisation d’une b-lactamine et d’un aminoglycoside associés à un macrolide. Cette bactérie est polyrésistante à la plupart des antibiotiques utilisés en clinique. Les mécanismes de résistance, innés ou acquis, qu’elle a développés, conduisent fréquemment à des échecs thérapeutiques, ce qui limite considérablement les moyens de lutte disponibles pour le clinicien. Une compréhension globale des mécanismes de résistance de cette bactérie s’avère ainsi nécessaire pour contrer les infections pulmonaires qu’elle provoque.

2019 ◽  
Vol 71 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Gloria H Hong ◽  
Ana M Ortega-Villa ◽  
Sally Hunsberger ◽  
Ploenchan Chetchotisakd ◽  
Siriluck Anunnatsiri ◽  
...  

Abstract Background The natural history of anti-interferon-γ (IFN-γ) autoantibody-associated immunodeficiency syndrome is not well understood. Methods Data of 74 patients with anti-IFN-γ autoantibodies at Srinagarind Hospital, Thailand, were collected annually (median follow-up duration, 7.5 years). Annual data for 19 patients and initial data for 4 patients with anti-IFN-γ autoantibodies at the US National Institutes of Health were collected (median follow-up duration, 4.5 years). Anti-IFN-γ autoantibody levels were measured in plasma samples. Results Ninety-one percent of US patients were of Southeast Asian descent; there was a stronger female predominance (91%) in US than Thai (64%) patients. Mycobacterium abscessus (34%) and Mycobacterium avium complex (83%) were the most common nontuberculous mycobacteria in Thailand and the United States, respectively. Skin infections were more common in Thailand (P = .001), whereas bone (P < .0001), lung (P = .002), and central nervous system (P = .03) infections were more common in the United States. Twenty-four percent of Thai patients died, most from infections. None of the 19 US patients with follow-up data died. Anti-IFN-γ autoantibody levels decreased over time in Thailand (P < .001) and the United States (P = .017), with either cyclophosphamide (P = .01) or rituximab therapy (P = .001). Conclusions Patients with anti-IFN-γ autoantibodies in Thailand and the United States had distinct demographic and clinical features. While titers generally decreased with time, anti-IFN-γ autoantibody disease had a chronic clinical course with persistent infections and death. Close long-term surveillance for new infections is recommended.


2014 ◽  
Vol 28 (5) ◽  
pp. 409-414 ◽  
Author(s):  
Seung‐Heon Lee ◽  
Hee Kyung Yoo ◽  
Seol Hee Kim ◽  
Won‐Jung Koh ◽  
Chang Ki Kim ◽  
...  

2008 ◽  
Vol 23 (1) ◽  
pp. 49 ◽  
Author(s):  
Sunghoon Park ◽  
Shinok Kim ◽  
Eun Mi Park ◽  
Hojoong Kim ◽  
O Jung Kwon ◽  
...  

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