Innate lymphoid cells in neuroinflammation.
Daria Kveštak1, Andrea Mihalić1, Stipan Jonjić1,2
1Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.
Frontiers in Cellular Neuroscience
|March 7, 2024
Summary
Innate lymphoid cells (ILCs) are key immune cells in the central nervous system (CNS). This review details their roles in maintaining CNS health and responding to conditions like neuroinflammation and infection.
Area of Science:
- Neuroimmunology
- Cellular Biology
- Tissue Homeostasis
Background:
- Innate lymphoid cells (ILCs) are crucial for tissue homeostasis and early inflammatory responses.
- ILCs are typically found in the choroid plexus and meninges, with minimal presence in the CNS parenchyma under normal conditions.
Purpose of the Study:
- To provide a comprehensive overview of innate lymphoid cell involvement and function within the CNS.
- To explore the roles of ILCs in physiological states and pathological conditions including CNS infections, autoimmune diseases, neurodegeneration, and injury.
Main Methods:
- Literature review and synthesis of existing research on ILCs in the CNS.
Main Results:
- ILCs are present in the CNS, primarily in the meninges and choroid plexus during homeostasis.
- Pathological conditions like autoimmune neuroinflammation and viral CNS infections trigger ILC infiltration into the CNS parenchyma.
Conclusions:
- ILCs play significant roles in the CNS, both in maintaining normal tissue function and in responding to disease.
- Understanding ILC dynamics in the CNS is critical for developing therapeutic strategies for neurological disorders.
Related Concept Videos
Cells of the Innate Immune Response
1.6K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.6K
Cells of the Adaptive Immune Response
986
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
986
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
Nervous Tissue: Glial Cells
2.9K
Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...
2.9K
Neurogenesis and Regeneration of Nervous Tissue
776
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
776
Introduction to Innate and Adaptive Immunity
4.0K
The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
4.0K


