Abstract:
OBJECTIVE:To study antibody-independent contributions of B cells to inflammatory disease activity, and the immune consequences of B-cell depletion with rituximab, in patients with multiple sclerosis (MS). METHODS:B-Cell effector-cytokine responses were compared between MS patients and matched controls using a 3-signal model of activation. The effects of B-cell depletion on Th1/Th17 CD4 and CD8 T-cell responses in MS patients were assessed both ex vivo and in vivo, together with pharmacokinetic/pharmacodynamic studies as part of 2 rituximab clinical trials in relapsing-remitting MS. RESULTS:B Cells of MS patients exhibited aberrant proinflammatory cytokine responses, including increased lymphotoxin (LT):interleukin-10 ratios and exaggerated LT and tumor necrosis factor (TNF)-alpha secretion, when activated in the context of the pathogen-associated TLR9-ligand CpG-DNA, or the Th1 cytokine interferon-gamma, respectively. B-Cell depletion, both ex vivo and in vivo, resulted in significantly diminished proinflammatory (Th1 and Th17) responses of both CD4 and CD8 T cells. Soluble products from activated B cells of untreated MS patients reconstituted the diminished T-cell responses observed following in vivo B-cell depletion in the same patients, and this effect appeared to be largely mediated by B-cell LT and TNFalpha. INTERPRETATION:We propose that episodic triggering of abnormal B-cell cytokine responses mediates 'bystander activation' of disease-relevant proinflammatory T cells, resulting in new relapsing MS disease activity. Our findings point to a plausible mechanism for the long-recognized association between infections and new MS relapses, and provide novel insights into B-cell roles in both health and disease, and into mechanisms contributing to therapeutic effects of B-cell depletion in human autoimmune diseases, including MS.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Bar-Or A,Fawaz L,Fan B,Darlington PJ,Rieger A,Ghorayeb C,Calabresi PA,Waubant E,Hauser SL,Zhang J,Smith CHdoi
10.1002/ana.21939subject
Has Abstractpub_date
2010-04-01 00:00:00pages
452-61issue
4eissn
0364-5134issn
1531-8249journal_volume
67pub_type
杂志文章,随机对照试验abstract::The regional metabolic rate for glucose (rMRglu) was studied in macaque monkeys after spinal cord transection at T10, both during spinal shock and after reflexes had returned. The rMRglu was measured in all Rexed layers in cord segments both caudal and rostral to the level of the transection utilizing the quantitative...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140106
更新日期:1983-07-01 00:00:00
abstract::The purpose of this study was to determine the role of high-resolution T2-weighted fast multiplanar inversion-recovery (FMPIR) magnetic resonance (MR) imaging in detecting and delineating microscopic focal cortical dysplasia (FCD). We performed MR scans with FMPIR on 42 patients with suspected neocortical epilepsy. Te...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410440508
更新日期:1998-11-01 00:00:00
abstract::This study quantitatively explored the dendritic/spine extent of supragranular pyramidal neurons across several cortical areas in two adult male subjects who had undergone a callosotomy several decades before death. In all cortical areas, there were numerous atypical, supragranular pyramidal neurons with elongated "ta...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10620
更新日期:2003-07-01 00:00:00
abstract::Knowledge about the balance between heritable and nonheritable risk in multiple sclerosis (MS) is based on twin studies in high-prevalence areas. In a study that avoided ascertainment limitations and directly compared continental Italy (medium-prevalence) and Sardinia (high-prevalence), we ascertained 216 pairs from 3...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20683
更新日期:2006-01-01 00:00:00
abstract::Using the technique of transcranial magnetic stimulation over the motor areas of cortex and recording electromyographic (EMG) responses from the first dorsal interosseous muscle, we measured the excitability of corticocortical inhibitory circuits at rest using a double pulse paradigm, in 11 patients with Parkinson's d...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.410370208
更新日期:1995-02-01 00:00:00
abstract::A patient is described with the dermatological features of blue rubber bleb nevus syndrome (BRBNS), focal seizures, and lateralized neurological signs. CAT scan demonstrated a nonenhanced density in the region of the vein of Galen. Neuropathological examination showed that this density was a clot within a vein of Gale...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030522
更新日期:1978-05-01 00:00:00
abstract::We present the clinicopathological features of two siblings from a consanguineous marriage who presented with respiratory hypoventilation and died 10 days and 4 years later, respectively. This disorder showed extensive tau neuropathology, and both had a novel homozygous S352L tau gene mutation. This is the first descr...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10747
更新日期:2003-11-01 00:00:00
abstract::The worldwide epidemiology of Creutzfeldt-Jakob disease (CJD) is presented from an analysis of 1,435 patients. In the United States, the average annual mortality rate is at least 0.26 deaths per million. Temporal-spatial clustering of cases was not found in the United States, but reports from other countries indicate ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050212
更新日期:1979-02-01 00:00:00
abstract:OBJECTIVE:Determining if traumatic brain injury (TBI) and post-traumatic stress disorder (PTSD) are risk factors for Parkinson's disease (PD). This constitutes a research priority for the Veterans Administration (VA) with implications for screening policy and prevention. METHODS:Population-based, matched case-control ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25726
更新日期:2020-07-01 00:00:00
abstract::Successful axon regeneration depends on the expression of regeneration-associated genes by axotomized neurons. Here, we demonstrate, for the first time to our knowledge, the expression of regeneration-associated genes by axotomized human CNS neurons. In situ hybridization and immunohistochemistry showed a transient in...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10724
更新日期:2003-10-01 00:00:00
abstract::A 65-year-old woman with normal pressure hydrocephalus experienced improved gait and hydrocephalus following surgical resection of a cauda equina neurinoma. Fibrinogen, detected in the cerebrospinal fluid, may be involved in the pathophysiological process of normal pressure hydrocephalus. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410270414
更新日期:1990-04-01 00:00:00
abstract::We studied neuronal activity and its relation to the accumulation of neurofibrillary tangles in Alzheimer's disease (AD) neurons by in situ hybridization to cytochrome oxidase subunit III messenger RNA, a marker of mitochondrial energy metabolism. In AD midtemporal cortex, levels of cytochrome oxidase subunit III mess...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400310
更新日期:1996-09-01 00:00:00
abstract::The possibility of detecting acute hypoxic-ischemic brain lesions by prenatal magnetic resonance imaging or ultrasound is low. We present a case of a fetus with a vein of Galen arteriovenous malformation in whom prenatal diffusion-weighted magnetic resonance imaging at 33 weeks of gestation clearly detected cerebral a...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10255
更新日期:2002-08-01 00:00:00
abstract::To evaluate reports of abnormal levels of free amino acids (AA) in patients with amyotrophic lateral sclerosis (ALS), we studied serum, cerebrospinal fluid, and urine AA in 12 patients with ALS and 12 controls matched for age, sex, and severity of disability. ALS patients had statistically significant elevations in se...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030405
更新日期:1978-04-01 00:00:00
abstract::The etiology of sudden death in patients with epilepsy remains unclear. Previous studies in a well-established sheep model of status epilepticus showed that more than one-third of the unsedated animals died within 5 minutes of seizure onset due to hypoventilation. The relative contributions of airway obstruction and c...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410420409
更新日期:1997-10-01 00:00:00
abstract::More than a decade ago myasthenic symptoms were observed in rabbits immunized with acetylcholine receptor (AChR) [119] and AChR deficiency was found at the neuromuscular junction in human myasthenia gravis (MG) [36]. By 1977 the autoimmune character of MG and the pathogenic role of AChR antibodies had been established...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410160502
更新日期:1984-11-01 00:00:00
abstract::Indirect evidence suggests that an autoimmune response to myelin basic protein (MBP) may be involved in the pathogenesis of multiple sclerosis (MS). In MS, several reports have suggested that restricted T-cell populations respond to MPB, as in inbred rodents with the MS disease model experimental allergic encephalomye...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410340313
更新日期:1993-09-01 00:00:00
abstract:OBJECTIVE:Gray matter (GM) damage and meningeal inflammation have been associated with early disease onset and a more aggressive disease course in multiple sclerosis (MS), but can these changes be identified in the patient early in the disease course? METHODS:To identify possible biomarkers linking meningeal inflammat...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25197
更新日期:2018-04-01 00:00:00
abstract::The phenotype of severe congenital hydrocephalus secondary to neural cell adhesion molecule L1 (L1CAM) gene mutations includes the distinct finding of brainstem corticospinal tract hypoplasia. Using diffusion-weighted imaging (DWI), we failed to demonstrate anisotropy in the corticospinal tracts of the basis pontis in...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::We report an immunohistochemical study of the mitochondrial alpha-ketoglutarate dehydrogenase complex (KGDHC) in the substantia nigra in Parkinson's disease. The KGDHC, the three enzyme complex catalyzing the oxidation of alpha-ketoglutarate to succinate through succinic semialdehyde, is the rate-regulating enzyme of ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350212
更新日期:1994-02-01 00:00:00
abstract::Fifty children with marked neurological abnormality manifested by moderate or severe motor disability and severe mental retardation were compared with a large control population with respect to prospectively ascertained perinatal characteristics. None of 60 prenatal factors distinguished the affected group from contro...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410020505
更新日期:1977-11-01 00:00:00
abstract::Huntington's disease is a genetic disorder that causes motor dysfunction, personality changes, dementia, and premature death. There is currently no effective therapy. Several transgenic models of Huntington's disease are available, the most widely used of which is the R6/2 mouse, because of its rapid disease progressi...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10094
更新日期:2002-02-01 00:00:00
abstract::Deposition of fibrillar amyloid beta protein (A beta) is increased in brains of patients with Alzheimer's disease. Concentrations of A beta were measured in cerebrospinal fluid with an enzyme-linked immunosorbent assay in 10 neurological patients free from neurodegenerative disease, 28 patients with Parkinson's diseas...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410370221
更新日期:1995-02-01 00:00:00
abstract::We measured brain acetylcholinesterase activity in 30 patients with Alzheimer's disease (AD) and 14 age-matched controls by positron emission tomography (PET) and using a carbon 11-labeled acetylcholine analogue. Seven AD patients had repeat PET scans. The k3 values were calculated as an index of acetylcholinesterase ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::The nucleus basalis of Meynert, which supplies diffuse cholinergic fibers to the cerebral neocortex, was investigated in two cases of parkinsonism-dementia complex of Guam (PDG). The nucleus basalis of the two PDG patients showed extensive neuron loss when compared with age-matched non-Guamanian controls, suggesting t...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410130118
更新日期:1983-01-01 00:00:00
abstract::Progressive cerebral deposition of amyloid-beta (Abeta) peptide, an early and essential feature of Alzheimer's disease (AD), is accompanied by an inflammatory reaction marked by microgliosis, astrocytosis, and the release of proinflammatory cytokines. Mucosal administration of disease-implicated proteins can induce an...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract::Previous studies have indicated increased immunoreactivity of the endogenous opioid peptide beta-endorphin in the cerebrospinal fluid (CSF) of infants under 2 years of age with apnea. To assess the role of endogenous opioids in the pathogenesis of apnea in children, the effect of oral treatment with the opioid antagon...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410270112
更新日期:1990-01-01 00:00:00
abstract::Multiple sclerosis (MS) is characterized by patchy accumulations of inflammatory cells combined with demyelination. There are mononuclear cells in blood and cerebrospinal fluid of patients with MS that produce interferon-gamma and interleukin-4 in response to myelin basic protein (MBP) and proteolipid protein (PLP). H...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350211
更新日期:1994-02-01 00:00:00
abstract::Interpretation of biochemical measurements in the human brain after death is complicated by a variety of premortem, perimortem, and postmortem factors. The activity of glutamic acid decarboxylase (GAD) in particular has been found to vary considerably among human brains. In contrast to neurotransmitter-associated enzy...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410100410
更新日期:1981-10-01 00:00:00
abstract::We describe two new clinical syndromes, mirror agnosia and mirror ataxia, both characterized by the deficit of reaching for an object through a mirror in association with a lesion of either parietal lobe. Clinical investigation of 13 patients demonstrated that the impairments affected both sides of the body. In mirror...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(199907)46:1<51::aid-ana9>3.0.co;
更新日期:1999-07-01 00:00:00