The ability to maintain homeostasis is conserved from unicellular organisms to mammals, which requires sensing and responding to the environment. Similar to pathogen infection, tissue injury is an ancient and universal insult that disrupts tissue and organismal homeostasis. Prompt sensing and repair of the injury is essential for organismal health and survival. While mechanisms of host defense through innate immune sensing of pathogen-derived “non-self” signals have been elucidated, how tissue injury is sensed by mammals to coordinate repair is less clear.
Drawing parallels between pathogen defense and injury repair, our projects focus on:
1) The cellular and molecular mechanisms of injury sensing and repair through innate immune-like signaling pathways.
2) The role of injury-induced signaling in wound-associated malignancy and infection.
3) How local injury regulates organismal homeostasis systemically.
We use in vitro biochemistry, cell-based and ex-vivo assays to dissect signaling mechanism and mouse genetics to define physiological function of these parallel signaling pathways.