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Published on: February 24, 2023
Cytokines in Mycoplasma pneumoniae infections
Jun Yang1, W Craig Hooper, Donald J Phillips
1Department of Pathology and Pathophysiology, and Proteomics Research Center, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310031, China
Abstract:
Mycoplasma pneumoniae (M. pneumoniae) is one of the smallest free-living bacteria known. Along with other unique characteristics of this genus, it lacks the typical peptidoglycan cell wall of most eubacteria. Best known for causing tracheobronchitis and atypical pneumonia in humans, this pathogen also causes a number of extrapulmonary syndromes such as meningitis/encephalitis and arthritis. Recent studies also suggest that infection may be associated with chronic conditions such as asthma. Although the mechanisms of M. pneumoniae pathogenesis remain to be elucidated, one important component of M. pneumoniae infections is the induction of proinflammatory and other cytokines in both acute and chronic conditions. In this review, we survey the induction of cytokines by M. pneumoniae in different model systems, and we discuss the possible role of induced cytokines in M. pneumoniae pathogenesis.
Insights
Mycoplasma pneumoniae (M. pneumoniae) infections trigger inflammatory cytokines, contributing to both acute respiratory illness and chronic conditions like asthma. Understanding these cytokine responses is key to M. pneumoniae pathogenesis.
Area of Science:
- Microbiology
- Immunology
- Pathogenesis
Background:
- Mycoplasma pneumoniae (M. pneumoniae) is an atypical bacterium lacking a peptidoglycan cell wall.
- It is a common cause of human respiratory infections, including atypical pneumonia and tracheobronchitis.
- M. pneumoniae is also associated with extrapulmonary manifestations and potentially chronic conditions like asthma.
Purpose of the Study:
- To review the induction of cytokines by M. pneumoniae across various model systems.
- To discuss the role of these induced cytokines in the pathogenesis of M. pneumoniae infections.
Main Methods:
- Literature review of studies investigating M. pneumoniae and cytokine induction.
- Analysis of data from different experimental models (in vitro and in vivo).
Main Results:
- M. pneumoniae infection consistently induces both pro-inflammatory and other cytokines.
- Cytokine induction occurs in both acute and chronic infection models.
- Evidence suggests a significant role for cytokines in the host response to M. pneumoniae.
Conclusions:
- Cytokine induction is a critical aspect of M. pneumoniae pathogenesis.
- Further research into cytokine modulation may offer therapeutic strategies for M. pneumoniae-associated diseases.
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