Regenerative inflammation in the CNS: Innate and adaptive immune mechanisms in myelin repair

MCT Research Seminars – October, 8th 2018

Dr Dombrowski’s research focuses on immune mechanisms in tissue damage and repair. Tissue damage can occur in infectious (e.g. bacteria, virus, fungi) or sterile settings (e.g. trauma, autoimmune attack). The Dombrowski group is primarily interested in the underlying immunological mechanisms that direct tissue repair and regeneration with the goal to identify novel therapeutic targets for immune-mediated diseases such as Multiple Sclerosis (MS).
Despite driving pathology in many diseases, the immune system is required for tissue regeneration. Innate immune receptors sense disruption of tissue homeostasis initiating a regenerative immune response that leads to the repair of the damaged tissue. Our central goal is to elucidate the mechanisms of regenerative inflammation, in particular, the role of the innate immune system in myelin regeneration in MS.
In MS the myelin sheath that covers nerve fibres is damaged due to an autoimmune attack against proteins in the myelin sheath. As a result, the nerve fibres die leading to a loss of function, which can result in paralysis and other neurodegenerative symptoms. There is no cure for MS to date and there are no therapies that can restore damaged myelin in order to prevent nerve loss.
Current projects of the group investigate the function of inflammasomes during myelin damage and regeneration in the central nervous system (CNS) and the effects of IL-1 cytokines on oligodendrocyte progenitor cells, stem cell-like cells in the CNS that produce myelin. Other projects in the group investigate the role of inflammasomes in regenerative inflammation after infectious tissue damage and the role of e-cigarette vapour as an inflammasome activator. Dr Dombrowski has published her work in high-impact journals (e.g. Nature Neuroscience 2017) and her research has been recognized in prestigious awards including an Early Career Fellowship from The Leverhulme Trust and the invitation to the 64th Lindau Nobel Laureate Meeting for Physiology and Medicine as one of ten UK representatives.