Through the promotion of phagolysosome formation, autophagy has emerged as a crucial mechanism to eradicate intracellular (Mtb). A cell-autonomous host defense mechanism called lysosome biogenesis and autophagy transports cytoplasmic cargos and bacterial phagosomes to lysosomes for destruction during infection. Similar occurrences occurred in stressful or starvation circumstances and led to autophagy, which is harmful to the cell. It is interesting to note that under both hunger and infection states, the transcription factor EB (TFEB) acts as a master regulator of lysosomal activities and autophagy. This review highlighted recent research on the multitier regulation of TFEB-induced autophagy by a variety of host effectors and Mtb sulfolipid during Mtb infection and starvation. In general, the research presented here sheds light on how lysosome biogenesis and autophagy are differentially regulated by the TFEB during Mtb infection and starvation.
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http://dx.doi.org/10.3390/microorganisms11122944 | DOI Listing |
Case Rep Med
December 2024
Department of Otolaryngology, Head and Neck Surgery, Saint Louis University School of Medicine, St Louis, Missouri, USA.
Spread of Mycobacterium tuberculosis (MTB) to the larynx is exceedingly rare and can be obscured by more common conditions such as laryngeal cancer or oropharyngeal candidiasis, complicating an accurate diagnosis. Risk factors for chronic laryngeal disease, such as smoking and toxin exposure, place TB infection comparatively lower for consideration on a physician's differential. However, identifying these lesions is crucial from a medical and public health perspective to prevent community spread.
View Article and Find Full Text PDFTuberculosis (Edinb)
December 2024
Shanxi Provincial Key Laboratory for Medical Molecular Cell Biology, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, and Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, China. Electronic address:
Background: Immune imbalance is crucial in tuberculosis pathogenesis and may be modulated by mesenchymal stem cells (MSCs). However, how MSCs regulate the host's response to Mycobacterium tuberculosis (Mtb) is unclear.
Methods: Human umbilical cord-derived MSCs were co-cultured with Mtb-infected THP-1 macrophages.
Anal Chem
December 2024
NHC Key Laboratory of Systems Biology of Pathogens, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, P. R. China.
The great variety of antimicrobial resistance (AMR) profiles among tuberculosis (TB) patients necessitates a comprehensive detection method. This study developed culture-independent, long amplicon-based targeted next-generation sequencing (tNGS) methods for predicting AMR across 16 drugs within the complex (MTBC). Multiplex PCR amplification was employed to enrich 20 gene regions, with sequencing performed on either the Oxford Nanopore Technologies (ONT) or Illumina platforms.
View Article and Find Full Text PDFBMC Infect Dis
December 2024
Department of Internal Medicine, Asokoro District Hospital, Abuja, Nigeria.
Background: Tuberculosis (TB), caused by Mycobacterium tuberculosis, is a leading cause of infection-related deaths worldwide. Children with underdeveloped immune systems are particularly vulnerable, experiencing symptoms akin to common childhood illnesses. Early diagnosis and treatment typically yield positive outcomes.
View Article and Find Full Text PDFInt J Mycobacteriol
October 2024
Department of Global Public Health, Karolinska Institute, Stockholm, Sweden.
Background: Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB), can enter a dormant phase within host tissues, complicating treatment and highlighting the need to investigate the genetic changes associated with dormancy.
Methods: This study examined clinical isolates of MTB, representing a range of susceptibility profiles and standard reference laboratory strains, i.e.
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