| 1. |
- Bracci-Laudiero, Luisa, et al.
(författare)
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NGF modulates CGRP synthesis in human B-lymphocytes : A possible anti-inflammatory action of NGF?
- 2002
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Ingår i: Journal of Neuroimmunology. - 0165-5728 .- 1872-8421. ; 123:1-2, s. 58-65
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Tidskriftsartikel (refereegranskat)abstract
- We investigated whether the sensory neuropeptide, calcitonin gene-related peptide (CGRP), could be synthesised by human lymphocytes. Our results indicate that in activated B-cells, there is a strong expression of CGRP gene transcripts, which is almost absent in resting cells. Since B-cells autocrinally produce NGF, the neutralisation of endogenous NGF by anti-NGF antibodies resulted in a marked reduction in CGRP expression in both resting and activated B-cells. Thus, NGF appears to directly affect the synthesis of CGRP in B-cells as in sensory neurons. By regulating CGRP synthesis in lymphocytes and neuronal cells, NGF can influence the intensity and duration of the immune response. ⌐ 2002 Elsevier Science B.V. All rights reserved.
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| 2. |
- Dahle, Charlotte, et al.
(författare)
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T lymphocyte subset abnormalities in peripheral blood from patients with the Guillain-Barré syndrome
- 1994
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Ingår i: Journal of Neuroimmunology. - : Elsevier BV. - 0165-5728 .- 1872-8421. ; 53:2, s. 219-225
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Tidskriftsartikel (refereegranskat)abstract
- T lymphocytes are probably of pathogenic importance in many autoimmune diseases. Recently, deviations of circulating T-helper (CD4+) subpopulations have been noticed. Blood samples from 12 patients with Guillain-Barré syndrome (GBS) were studied with flow cytometry during their disease to define circulating T cell populations. The proportion of T-helper cells (CD4+) was decreased (mean value 41±15%, P = 0.01) and the proportion of T cytotoxic/suppressor cells (CD8+) was increased (35±18%, P = 0.0006) as compared to the control group of healthy blood donors (47±8% and 26±7% respectively). The CD4+ population is divided into the helper/inducer (CD4+ CD29+) and suppressor/inducer (CD4+ CD45RA+) subsets. which normally are equally distributed (mean values in our control group were 45±15% and 44±15%, respectively). In patients with GBS, the helper/inducer (CD4+ CD29+) subset was increased (54±10%, P = 0.05) and the suppressor/inducer (CD4+ CD45RA+) subset was decreased (31±9, P = 0.005) compared to the controls. The proportion of activated HLA-DR-expressing T cells was increased (7±8%, P = 0.005) as compared to control (3±3%). The total proportions of T cells (CD2+), B cells (CD19+) and natural killer (NK) cells (CD56+) were similar in pateints and controls. The CD4+ and CD8+ populations, as well as the activated HLA-DR+ T cells, normalized during the disease course. The derivations within the CD4+ population also tended to normalize, but even at follow up after 6–33 (mean 23) months, some abnormalities remained. In conclusion, we confirm previous reports of T cell activation in peripheral blood from patients with GBS. A new finding is the derivation of T helper subpopulations with an increased helper/inducer (CD4+ CD29+) subset and a decreased suppressor/inducer (CD4+ CD45RA+) subset, which indicates a possible autoimmune character of GBS.
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| 3. |
- Grusell, Mattias, et al.
(författare)
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Increased expression of the Th1-inducing cytokines interleukin-12 and interleukin-18 in cerebrospinal fluid but not in sera from patients with Lyme neuroborreliosis
- 2002
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Ingår i: Journal of Neuroimmunology. - 0165-5728 .- 1872-8421. ; 131:1-2, s. 173-178
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Tidskriftsartikel (refereegranskat)abstract
- Lyme neuroborreliosis is a complex disease with different clinical outcomes and where immunopathological mechanisms are probably involved. In this study, sera and cerebrospinal fluid (CSF) from 21 neuroborreliosis patients and 26 control patients were analyzed for the Th1-inducing cytokines, interleukin (IL)-12 and IL-18, and the Th2 associated, soluble CD30 (sCD30) by ELISA. The results showed an increased number of neuroborreliosis patients expressing IL-12 (p<0.05) and IL-18 (p<0.05) in the CSF when compared with the controls, but no indication of increased levels in the sera. Nor were there any differences regarding levels of sCD30 in the sera or the CSF, indicating a local Th1-generating milieu in the target organ of neuroborreliosis.
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| 4. |
- Kosek, E, et al.
(författare)
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Differences in neuroimmune signalling between male and female patients suffering from knee osteoarthritis.
- 2018
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Ingår i: Journal of Neuroimmunology. - : Elsevier BV. - 0165-5728 .- 1872-8421. ; 321, s. 49-60
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Tidskriftsartikel (refereegranskat)abstract
- The primary aim was to identify cytokines involved in blood borne, neuroimmune joint-to-CNS signalling in knee osteoarthritis (OA) patients. Monocyte chemoattractant protein 1 (MCP1) and Interleukin-8 (IL-8) were elevated in the cerebrospinal fluid (CSF) in patients indicating neuroinflammation. Significant positive correlations were found for MCP1 across CSF, serum and synovial fluid (SF), in female, but not male patients. The results revealed sex differences in neuroimmune signalling and implicated MCP1 in blood borne joint-to-CNS signalling in female patients. Symptom severity correlated with IL-6 and IL-8 levels in SF, but was inversely associated with IL-6 and IL-8 levels in CSF, indicating that neuroinflammation in OA may be an adaptive, possibly neuroprotective mechanism promoting symptom reduction.
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| 5. |
- Ahlgren, Cecilia, 1946, et al.
(författare)
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The effect of live, attenuated measles vaccine and measles infection on measles antibody levels in serum and CSF of patients with multiple sclerosis or clinically isolated syndrome.
- 2011
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Ingår i: Journal of neuroimmunology. - : Elsevier BV. - 1872-8421 .- 0165-5728. ; 235:1-2, s. 98-103
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Tidskriftsartikel (refereegranskat)abstract
- High occurrence of measles, rubella and varicella zoster antibodies has been used as a biomarker for MS (the MRZ test). We analyzed measles antibody titres with respect to measles infection/measles vaccination status in 166 patients with MS or clinically isolated syndrome. Fifty blood donors served as controls. Measles vaccination yielded CSF measles antibodies in fewer patients (62%) than measles infection did (87%, p=0.001) and yielded lower measles titres in both serum and CSF (p<0.001). Controls had lower CSF measles titres than patients with measles vaccination alone (p<0.001). Childhood vaccinations probably reduce the sensitivity of the MRZ diagnostic test for MS.
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| 8. |
- Anderson, Albert M, et al.
(författare)
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Cerebrospinal fluid CXCL10 is associated with the presence of low level CSF HIV during suppressive antiretroviral therapy.
- 2021
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Ingår i: Journal of neuroimmunology. - : Elsevier BV. - 1872-8421 .- 0165-5728. ; 353
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Tidskriftsartikel (refereegranskat)abstract
- Surrogate markers of HIV central nervous system (CNS) persistence are needed because direct HIV measurements from the CNS require specialized protocols and are not always detectable or quantifiable. We analyzed paired plasma and CSF samples from people with HIV (PWH) on suppressive therapy (ART) with a validated HIV single copy RNA assay. Two potential markers of CNS persistence were measured (CXCL10 and sCD30). We then examined associations with CSF HIV RNA positivity in univariable and multivariable analyses. Among 66 individuals, 18.2% had detectable CSF HIV. Individuals who had detectable HIV in CSF had higher CSF CXCL10 concentrations (median 514pg/ml versus median 317pg/ml, p=0.019), but did not have significantly different CSF sCD30 concentrations (median 7.5ng/ml versus median 7.6ng/ml, p=0.78). In the multiple logistic analysis, both higher CSF CXCL10 (p=0.038) and plasma HIV detectability (p=0.035) were significantly associated with detectable CSF HIV. Both sCD30 and CXCL10 correlated positively with NfL and NSE, two neuronal markers. This study demonstrates that CSF CXCL10 concentrations reflect low level HIV CNS persistence despite virologic suppression on ART. Given that it is readily detectable and quantifiable, this chemokine may be a promising biomarker to evaluate HIV eradication therapies that target the CNS.
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