Yersinia pestis Cellular Pathogenesis
Modeling intracellular and extracellular dynamics during macrophage interaction
Summary
Yersinia pestis, the causative agent of plague, employs a sophisticated type III secretion system (T3SS) to inject effector proteins into host immune cells, primarily macrophages. This suppresses phagocytosis and dampens inflammatory responses. Recent research has elucidated how Yop proteins manipulate host signaling pathways, including NF-κB and MAPK cascades, to subvert immune detection and promote intracellular survival. Additionally, extracellular vesicles and nutrient absorption play key roles in the bacteria's adaptation and persistence in hostile environments.
Interpretation
This simulation illustrates interactions between Y. pestis and host macrophages, including extracellular medium effects and absorption behaviors. The model integrates biochemical signaling and spatial interactions to simulate cellular responses under varying environmental pressures.