Final published version
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
}
TY - CHAP
T1 - Pathophysiology of lymphatic drainage of the central nervous system
T2 - Implications for the pathophysiology of multiple sclerosis
AU - Weller, Roy O.
AU - Carare, Roxana O.
AU - Hawkes, Cheryl A.
AU - Galea, Ian
PY - 2015/11/20
Y1 - 2015/11/20
N2 - Autoimmune inflammation in the central nervous system (CNS) plays a significant role in multiple sclerosis (MS), suggesting that regional lymph nodes are involved in pathogenesis of the disease. The brain has two fluids that drain to lymph nodes: cerebrospinal fluid (CSF) and interstitial fluid (ISF). CSF drains via nasal lymphatics and carries antigens, antigen-presenting cells (APCs), and inflammatory cells to cervical lymph nodes (CLNs). There are no conventional lymphatics in the parenchyma of the CNS; instead, ISF and soluble antigens drain to lymph nodes along narrow basement membranes in the walls of capillaries and arteries. This route is too narrow to allow the migration of APCs. Lymphatic drainage of CSF and ISF appears to confer tolerance to CNS proteins upon the CLNs. Such tolerance may be eclipsed when systemic exposure to brain antigens primes lymphocytes against CNS antigens, as occurs in experimental autoimmune encephalomyelitis. Similar mechanisms may apply to the pathogenesis of MS.
AB - Autoimmune inflammation in the central nervous system (CNS) plays a significant role in multiple sclerosis (MS), suggesting that regional lymph nodes are involved in pathogenesis of the disease. The brain has two fluids that drain to lymph nodes: cerebrospinal fluid (CSF) and interstitial fluid (ISF). CSF drains via nasal lymphatics and carries antigens, antigen-presenting cells (APCs), and inflammatory cells to cervical lymph nodes (CLNs). There are no conventional lymphatics in the parenchyma of the CNS; instead, ISF and soluble antigens drain to lymph nodes along narrow basement membranes in the walls of capillaries and arteries. This route is too narrow to allow the migration of APCs. Lymphatic drainage of CSF and ISF appears to confer tolerance to CNS proteins upon the CLNs. Such tolerance may be eclipsed when systemic exposure to brain antigens primes lymphocytes against CNS antigens, as occurs in experimental autoimmune encephalomyelitis. Similar mechanisms may apply to the pathogenesis of MS.
KW - Alzheimer's disease
KW - Arteries
KW - Basement membranes
KW - Brain
KW - CSF
KW - Immunological tolerance
KW - Interstitial fluid
KW - Lymph nodes
KW - Lymphatic drainage
KW - Multiple sclerosis
KW - Neuroimmunology
U2 - 10.1016/B978-0-12-800763-1.00019-1
DO - 10.1016/B978-0-12-800763-1.00019-1
M3 - Chapter
SN - 9780128007631
SP - 479
EP - 501
BT - Multiple Sclerosis
A2 - Minagar, Alireza
PB - Elsevier Inc.
ER -