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IL28B, IL29 and micro-RNA 548 in subacute sclerosing panencephalitis as a rare disease. Gene 2018; 678:73-78. [PMID: 30077763 DOI: 10.1016/j.gene.2018.07.062] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 12/18/2022]
Abstract
Subacute sclerosing panencephalitis (SSPE) is a progressive neurodegenerative disease which affects children and young adults, caused by a persistent infection of defective measles virus. IFN-λs (IL-28A, IL-28B and IL-29) are a group of cytokines mediating antiviral responses. It has been shown that IL-29 levels are significantly higher in infected cells with defective measles virus. IL-29 expression is thought to be regulated at post-transcriptional level and miRNA-548 family targets the 3'UTR of the IFNL1 gene. Impaired immune system has an important role as well as viral factors in SSPE. The aim of our study investigates whether IL-28B, IL-29 levels and gene polymorphisms contribute to the damaged immune response leading to the development of SSPE. Also possible association of miR-548 family with IL-29 and SSPE is explored. Frequencies of rs12979860, rs8099917, rs30461, serum levels of IL-28B, IL-29 and expression levels of miR-548b, miR-548c, miR-548i are determined at 64 SSPE patients and 68 healthy controls. Serum IL-29 levels are statistically significant higher in SSPE patients. Allele frequencies of rs8099917 are statistically significant higher in SSPE patients and resulted G allele is found to increase 2.183-fold risk of SSPE. The expression levels of miR-548b-5p, miR-548c-5p and miR-548i are found to be statistically significant higher in SSPE patients. Dramatically increased level of IL-29 seen in patient group indicates that the elevated miR-548 expression is compensatory result of the over-activated immune system response. Further studies referred to IL28, IL29 and related miRNA's will be enlightened the pathogenesis of SSPE.
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An evaluation of neuropeptide Y status in subacute sclerosing panencephalitis patients. LA CLINICA TERAPEUTICA 2013; 164:e159-e162. [PMID: 23868630 DOI: 10.7417/ct.2013.1561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM This study aimed to evaluate the neuropeptide Y values of patients with subacute sclerosing panencephalitis. MATERIALS AND METHODS The study comprised 38 patients diagnosed with subacute sclerosing panencephalitis at our clinic, who were being routinely followed-up, together with a control group of 36. Using the Risk and Haddad classification for clinical staging, 16 patients were determined as Stage II and 22 patients as Stage III. Neuropeptide Y values were measured by Enzyme Immunoassay methods. RESULTS The neuropeptide Y values of the all patients with subacute sclerosing panencephalitis were found to be significantly high compared to the control group (p<0.01). The neuropeptide Y values of the Stage III group were found to be significantly high compared to the Stage II and control groups (p<0.05). The neuropeptide Y values of the Stage II group were not determined to be significant compared to the control group (p≤0.05). CONCLUSIONS Neuropeptide Y can be considered a useful parameter to confirm diagnosis at advanced stages and to establish differences between stages in patients with subacute sclerosing panencephalitis.
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Serum and cerebrospinal fluid cytokine concentrations in subacute sclerosing panencephalitis. Brain Dev 2010; 32:463-6. [PMID: 19481385 DOI: 10.1016/j.braindev.2009.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Revised: 04/22/2009] [Accepted: 04/28/2009] [Indexed: 11/19/2022]
Abstract
Subacute sclerosing panencephalitis (SSPE) is a neurodegenerative disease due to persistent measles virus infection. Its immunopathogenesis is unknown. Tumor necrosis factor (TNF)-alpha, interleukin (IL)-2, IL-6, IL-10 and IL-4 concentrations were measured in cerebrospinal fluid (CSF) and serum samples from 30 SSPE patients and 19 control subjects by cytometric bead array. CSF and serum IFN-gamma, IL-12 and IL-18 levels were measured in 18 SSPE patients by ELISA. Serum IL-4 and IL-10 (p<0.001), CSF IL-4 (p<0.001) and IL-6 (p=0.049) concentrations were lower, and serum IL-2 concentrations, higher (p=0.001) in SSPE patients. Serum TNF-alpha and IL-6, CSF TNF-alpha, IL-10, and IL-2 concentrations were not different between SSPE and control groups. Serum IFN-gamma levels were higher in stage I and II than stage III patients (p<0.05), whereas there was no difference between stages in terms of other cytokines. The levels of Th2-type cytokines: IL-4, IL-6 and IL-10 were suppressed in our SSPE cases. This finding, along with relatively elevated IFN-gamma and IL-2 levels, may suggest more active effector T cells compared to regulatory T cells (Treg), especially induced Treg, in early disease. High serum IL-2 concentrations might indicate peripheral Th1 activation. Discrepancies between various reports in the literature should be examined in view of the ages, stage and treatments of the patients studied. The interplay of various cytokines or cellular systems which may vary over time and between patients. Studies of treatment measures favoring the preservation of the early inflammatory response may be of interest in SSPE.
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Abstract
Reduced serum levels of vitamin A affect morbidity and mortality in measles. The authors' newly diagnosed subacute sclerosing panencephalitis (n = 21) and age-matched control groups (n = 20) had mean serum beta-carotene levels of 1.12 +/- 0.56 and 1.50 +/- 0.52 microg/mL, respectively. Serum retinol <20 microg/dL was observed in 6 of 21 subacute sclerosing panencephalitis and 0 of 20 control cases (P < .05). Vitamin A deficiency can accompany subacute sclerosing panencephalitis: its contribution to the pathogenesis or course of the disease warrants further investigations.
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Recombinant antibodies generated from both clonal and less abundant plasma cell immunoglobulin G sequences in subacute sclerosing panencephalitis brain are directed against measles virus. J Neurovirol 2007; 12:398-402. [PMID: 17065133 PMCID: PMC3277326 DOI: 10.1080/13550280600957414] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Increased immunoglobulin G (IgG) and intrathecally produced oligoclonal bands (OGBs) are characteristic of a limited number of inflammatory central nervous system (CNS) diseases and are often directed against the cause of disease. In subacute sclerosing panencephalitis (SSPE), the cause of disease and the target of the oligoclonal response is measles virus (MV). The authors previously showed that clonally expanded populations of CD38+ plasma cells in SSPE brain, the likely source of OGBs, are directed against MV. In characterizing the breadth of the plasma cell reactivities, the authors found that a large proportion of the less abundant plasma cells are also directed against MV. The intrathecal response may be useful in determining the causes of other inflammatory CNS diseases, such as multiple sclerosis, Behcet's disease, and neurosarcoidosis.
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Serum levels of matrix metalloproteinase-9 and tissue inhibitors of metalloproteinases 1 in subacute sclerosing panencephalitis. J Neurol Sci 2007; 252:45-8. [PMID: 17118404 DOI: 10.1016/j.jns.2006.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2006] [Revised: 08/14/2006] [Accepted: 10/04/2006] [Indexed: 11/15/2022]
Abstract
We determined the relationship between the serum concentrations of matrix metalloproteinase-9 (MMP-9) and tissue inhibitors of metalloproteinases 1 (TIMP-1) in 33 patients with subacute sclerosing panencephalitis (SSPE) to investigate the function of the blood-brain-barrier (BBB) in SSPE. Serum MMP-9 and TIMP-1 levels were measured by ELISA. Serum MMP-9 levels and MMP-9/TIMP-1 ratios of SSPE patients in Papua New Guinea (n = 24), and those in Japan (n = 9) were significantly higher than the each control (MMP-9, p = 0.0390, and p = 0.0023, respectively; MMP-9/TIMP-1, p = 0.0319, and p = 0.0009, respectively). Serum MMP-9 levels and MMP-9/TIMP-1 ratios of SSPE patients with Jabbour stage III (n = 13) were significantly higher than those with Jabbour stage II (n = 18) (p = 0.003, and p = 0.0412, respectively). There were no significant differences of serum TIMP-1 levels between the SSPE patients and controls. High serum MMP-9 and MMP-9/TIMP-1 levels will promote brain invasion through the BBB by immunocompetent cells in the blood. Our findings suggest that the balance of serum MMP-9 and TIMP-1 levels modulate the inflammatory cascade of SSPE.
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Abstract
BACKGROUND Subacute sclerosing panencephalitis (SSPE) is a chronic and debilitating disease of the central nervous system caused by a latent measles virus infection. Three candidate genes, MxA, IL-4, and IRF-1 genes were shown to be associated with SSPE in Japanese patients. These genes have been suggested to play a role in the establishment of persistent viral infection in the central nervous system. SUBJECTS AND METHODS Sixty Filipino SSPE patients and 120 healthy control subjects were included in the study. Single nucleotide polymorphisms at promoter regions ( IL-4-590C/T and MXA-88G/T) were screened using PCR-RFLP method. Genotyping was done for GT repeat polymorphism within intron 7 of IRF-1. RESULTS The TT genotype of MXA, as well as the CT genotype of IL-4, were seen a little more frequently among the SSPE patients as compared to the control subjects. The values though, did not reach statistical significance. IRF-1 analysis did not differ between the two groups. CONCLUSION Our study failed to demonstrate a significant association between IL-4, MXA, or IRF-1, and SSPE in the Filipino population. Our results might be explained by a greater contribution of environmental factors such as the socio-economic and nutritional factors in the susceptibility of Filipinos to SSPE other than genetic factors.
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Analysis of serum and cerebrospinal fluid cytokine levels in subacute sclerosing panencephalitis in Papua New Guinea. Cytokine 2006; 33:17-20. [PMID: 16413199 DOI: 10.1016/j.cyto.2005.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2005] [Revised: 07/26/2005] [Accepted: 11/03/2005] [Indexed: 11/26/2022]
Abstract
BACKGROUND Subacute sclerosing panencephalitis (SSPE) is a rare progressive inflammatory disease characterized by the persistent infection of the brain by the measles virus. However, the immunological pathophysiology of SSPE is still unclear. METHODS We measured the concentrations of interferon-gamma (IFN-gamma), tumor necrosis factor-alpha (TNF-alpha), interleukin-2 (IL-2), IL-4, IL-6, IL-10, and soluble TNF receptor 1 (sTNFR1) in the serum and cerebrospinal fluid (CSF) of 23 patients with SSPE in Papua New Guinea (PNG), a country with a high incidence of SSPE, and Japanese controls by cytometric bead array or ELISA. RESULTS The serum IL-6 and IL-10 levels of SSPE patients were significantly higher than those of controls (p=0.0075, and p=0.0019, respectively). The serum IL-6 and IL-10 levels of SSPE patients with fever were significantly higher than those without fever (p=0.0107, and p=0.0006, respectively). The CSF IL-6 levels of SSPE patients were significantly higher than those of controls (p=0.0218). The CSF IL-6 levels of SSPE patients with myoclonic jerks were significantly higher than those without myoclonic jerks (p=0.0189). There were no differences in serum IFN-gamma, TNF-alpha, IL-2, IL-4, and sTNFR1, or CSF IFN-gamma, TNF-alpha, IL-2, IL-4, IL-10, and sTNFR1 levels between the affected patients and controls. CONCLUSION Our present study suggests that serum IL-6 and IL-10 levels are related to fever, and the CSF IL-6 level, myoclonic jerks, in SSPE patients in PNG.
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Role of CSF serology in follow-up of subacute Sclerosing Panencephalitis patients on treatment. Indian J Med Microbiol 2006; 24:131-2. [PMID: 16687866 DOI: 10.4103/0255-0857.25202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Subacute sclerosing panencephalitis (SSPE) is a progressive inflammatory disease of the central nervous system with poor prognosis and high mortality. No effective treatment has a proven role; oral isoprinosine and intrathecal administration of alpha-interferon may prolong survival. We report an unusual case of adult onset SSPE patient on treatment with significant clinical improvement, even in the absence of conversion to seronegativity in either CSF or serum, on follow-up serological examination.
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Elevated interleukin-12 and CXCL10 in subacute sclerosing panencephalitis. Cytokine 2005; 32:104-10. [PMID: 16226466 DOI: 10.1016/j.cyto.2005.08.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2005] [Revised: 06/29/2005] [Accepted: 08/24/2005] [Indexed: 10/25/2022]
Abstract
Immunosuppression associated with measles virus (MV) can be demonstrated by cytokine production failure in subacute sclerosing panencephalitis (SSPE) and may have implications on the pathogenesis of the disease. Cytokines (IL-12, IL-10, IL-4, IL-17, IL-18, IFN-alpha, IFN-gamma) and chemokines (CXCL8, CXCL10, CCL2 and CCL5) were measured in the cerebrospinal fluid (CSF) and serum samples from 60 patients with SSPE, 36 patients with infectious and/or inflammatory (IN) and 28 with other non-inflammatory (NIN) neurological diseases by ELISA. IL-12 p70+p40 was elevated in CSF and sera of SSPE when compared to the NIN group. However, the CSF levels of IL-12 p70 alone were not increased, indicating an increase of p40. The CSF of SSPE patients also showed relatively higher levels of IL-10 than that of the NIN group. CXCL10 levels in CSF were significantly higher in SSPE, whereas CXCL8 was increased in sera compared to NIN. No difference was detected in IFN-gamma, IFN-alpha, IL-17, IL-18, IL-4 or CCL2 and CCL5 levels. These results demonstrate that immune response against MV in SSPE may be impaired, although some T cell/Th1 inducing stimulations are present.
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Alterations in cell-mediated immune response in subacute sclerosing panencephalitis. J Neuroimmunol 2005; 170:179-85. [PMID: 16223530 DOI: 10.1016/j.jneuroim.2005.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2005] [Accepted: 09/09/2005] [Indexed: 10/25/2022]
Abstract
To investigate T cell responses in subacute sclerosing panencephalitis (SSPE), we analyzed proliferation and cytokine secretion of cells from 35 patients and 42 healthy controls (HC) in response to central nervous system (CNS) antigens. The proliferation in response to myelin basic protein (MBP), myelin oligodendrocyte-glycoprotein (MOG) and alphaB-crystallin did not differ between groups. There was a trend towards a decrease in IL-12 production in response to MBP and in vitro IL-12 secretion of SSPE patients to measles virus vaccine (MVV) was lower than controls. Proliferation, as well as IFN-gamma, IL-12 and IL-10 production in response to purified protein derivate (PPD) was impaired in SSPE patients. The results did not demonstrate any by-stander cellular response against myelin antigens, implicating that CNS is not a predominant target of an autoimmune response in SSPE. The recall responses were lower in SSPE as reported in measles before.
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Changing trend of SSPE over a period of ten years. Indian J Public Health 2005; 49:235-7. [PMID: 16479905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
Sub acute sclerosing pan-encephalitis (SSPE) is a slowly progressive inflammatory disorder of the central nervous system. A decline in frequency has been noticed in most of the developed countries, whereas it continues to be high in developing countries. Though a number of studies have been carried out, the exact trend of SSPE is still not clear. Hence the present study was carried out to analyze the trend of SSPE over the past ten years in and around Chandigarh. A total of 205 patients with clinical features suggestive of SSPE were enrolled for the study during Jan'92 to Dec. 2001. Measles specific antibodies were detected in blood and CSF by HAI method. 114 patients were found to be positive for measles specific HAI antibody with a male preponderance. The number of SSPE cases were found to be more during the period 1992-95 in comparison to the next 6 years (p < 0.05). The high incidence of SSPE in our country could be due to improper vaccine coverage, poor cold chain maintenance or circulation of atypical measles virus strain.
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Abstract
The authors describe five cases of subacute sclerosing panencephalitis (SSPE) identified through the California Encephalitis Project that emphasize the importance of considering SSPE in the differential diagnosis of encephalitis, particularly among pediatric patients. SSPE was not suspected in the differential diagnosis of three of the cases until results of measles testing were known. The diagnosis of SSPE is often not considered by clinicians because of its rarity in the United States and the nonspecific clinical manifestations at onset.
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Abstract
The authors used a liquid-phase radiobinding assay to measure serum anti-myelin oligodendrocyte protein (MOG) immunoglobulin (Ig) G in 87 patients with multiple sclerosis (MS), in 12 patients with encephalomyelitis, and in 47 healthy subjects. Anti-MOG IgM was determined in samples obtained at onset from 40 of 87 patients with MS and in control subjects. The frequency of positive samples with low titers of anti-MOG IgG (< or =5.7%) and IgM (< or =8.3%) was similar in all the groups and subgroups. Binding competition experiments showed that these antibodies had low affinity. Anti-MOG antibodies are not disease specific.
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Abstract
Subacute sclerosing panencephalitis is a rare progressive neurological disorder of childhood and early adolescence caused by persistent measles virus. The diagnosis is based upon characteristic clinical manifestations, periodic EEG discharges, raised antibody titre against measles/SSPE in the plasma and cerebrospinal fluid and increase of gamma-globulins in the cerebrospinal fluid. Histopathological examination shows neuronal loss, astrogliosis, demyelination, infiltration of inflammatory cells, and intranuclear inclusions in neurons, oligodendrocytes and astrocytes. In most cases nucleocapsids are detected by electron microscopy. Although treatment is still undetermined, combination of intrathecal high-dose interferon-alpha and intravenous ribavirin administered at an early stage of SSPE seems to be effective.
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Combination therapy with intraventricular interferon-alpha and ribavirin for subacute sclerosing panencephalitis and monitoring measles virus RNA by quantitative PCR assay. Brain Dev 2003; 25:367-9. [PMID: 12850518 DOI: 10.1016/s0387-7604(03)00017-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Subacute sclerosing panencephalitis (SSPE) is a degenerative disease of the central nervous system that leads to death within a few years. Recently, it has been reported that combination therapy with intraparenchymal interferon-alpha (INF-alpha) and intraventricular ribavirin is effective. An 11-year-old SSPE patient whose clinical symptoms progressed rapidly, was treated first with intraventricular INF-alpha and then with combined intraventricular INF-alpha and ribavirin therapy. To monitor viral load over the course of the therapy, measles virus RNA was quantified using a real-time polymerase chain reaction assay. Measles virus RNA decreased rapidly after the INF-alpha therapy was started, paralleling the decrease in the measles antibody titer in the cerebrospinal fluid and the improvement in the neurological disability. After intraventricular ribavirin was combined with INF-alpha therapy, no further improvement was observed. The neurological disability gradually progressed, although the amount of virus RNA remained low.
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Hypothalamic digoxin-mediated model for subacute sclerosing panencephalitis. J Neurovirol 2002; 8:326-34. [PMID: 12161817 DOI: 10.1080/13550280290100770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The isoprenoid pathway including endogenous digoxin was assessed in subacute sclerosing panencephalitis (SSPE). This was also studied for comparison in patients with right hemispheric and left hemispheric dominance. The following parameters were measured in patients with SSPE and in individuals with right hemispheric, left hemispheric and bihemispheric dominance-(a) plasma HMG CoA reductase, digoxin, dolichol, ubiquinone, and magnesium levels; (b) tryptophan/tyrosine catabolic patterns; (c) free-radical metabolism; (d) glycoconjugate metabolism; and (e) membrane composition and RBC membrane Na(+)-K(+) ATPase activity. The isoprenoid pathway was upregulated with increased digoxin synthesis in patients with SSPE and in those with right hemispheric dominance. In this group of patients: (a) the tryptophan catabolites were increased and the tyrosine catabolites reduced; (b) the dolichol and glycoconjugate levels were elevated; (c) lysosomal stability was reduced; (d) ubiquinone levels were low and free-radical levels increased; and (e) the membrane cholesterol:phospholipid ratios were increased and membrane glycoconjugates reduced. On the other hand, in patients with left hemispheric dominance the reverse patterns were obtained. The upregulated isoprenoid pathway and hypothalamic digoxin are involved in the pathogenesis of SSPE. SSPE occurs in right hemispheric chemically dominant individuals and a pathogenetic model for SSPE implicating hypothalamic digoxin is proposed.
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Abstract
Two patients with subacute sclerosing panencephalitis (SSPE) were treated safely and effectively with high doses of intravenous ribavirin combined with intraventricular alpha interferon. The ribavirin concentrations maintained in the serum and cerebrospinal fluid were higher than those which inhibit SSPE virus replication in vitro and in vivo.
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Measles virus-specific immunoglobulin G subclass response in serum and cerebrospinal fluid. CLINICAL AND DIAGNOSTIC VIROLOGY 1997; 8:233-9. [PMID: 9406654 DOI: 10.1016/s0928-0197(97)10007-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND While many previous studies have focused on the impairment in the cellular immunity during measles virus infection, to date, a limited amount of data is available concerning the virus-specific IgG subclass response during measles virus infection. OBJECTIVE The purpose of this study is to analyze the measles virus infection on the basis of virus-specific IgG subclass (G 1 and G 3). STUDY DESIGN Frozen-stored, serum and/or cerebospinal fluid samples from three groups of patients were tested retrospectively; Group 1 comprised 14 patients with measles primary infection, group 2, ten patients with reinfection/vaccine failure, and group 3, seven patients with subacute sclerosing panencephalitis. The method used was a modified ELISA method utilizing the Enzygnost IgG detection kit with mouse-monoclonal antibodies (clone HP6091 for IgG 1 and clone HP6050 for IgG 3). Avidity testing for each subclass IgG was also performed for selected samples by means of an 8 M urea-denaturation method. RESULTS In group 1, the IgG 3 could be detected in serum within 7 days from the onset of rash more frequently than IgG 1. In the cases of group 2, both subclasses were detected in very acute phase serum samples. In these cases, the IgG 1-specific avidity was always higher than that of IgG 3. In group 3, the subclass IgGs detected in the cerebrospinal fluid had a lower avidity than those in the serum. CONCLUSIONS Our results suggested that in measles virus infection, like other viral infections, the IgG 3 response normally occurs before the IgG 1 response, and plays a major role in the acute phase immunity during the primary infection, while the IgG 1 plays a major role in the maintenance of immunity. Continuously produced IgG 1 and IgG 3 in the central nervous system in cases of subacute sclerosing panencephalitis may be derived from cell populations different from those in the blood.
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Abstract
OBJECTIVE We measured measles-specific IgA in matched pairs of cerebrospinal fluid (CSF) and sera of patients with subacute sclerosing panencephalitis (SSPE), multiple sclerosis (MS), other central nervous system (CNS) infectious diseases (INF) and other neurological diseases (OND) by using enzyme linked immunosorbent assay. MATERIALS AND METHODS CSF and sera from 23 patients with SSPE, 15 with MS, 14 with INF, and 15 with OND were included in the study. RESULTS The ratios of measles-specific IgA in CSF to serum were increased in SSPE patients compared to patients with MS, INF or OND. CONCLUSION The data indicate a local production of measles-specific IgA in the CNS of SSPE patients.
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Synthesis of antibodies against measles virus and myelin by in vitro stimulated B-cells derived from patients with subacute sclerosing panencephalitis. Immunol Lett 1993; 38:55-8. [PMID: 7507883 DOI: 10.1016/0165-2478(93)90118-l] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Subacute sclerosing panencephalitis (SSPE) patients carry persistent measles virus infection in the brain. Furthermore, the blood lymphocytes contain viral RNA. Lymphocytes derived from 6 SSPE patients were stimulated with Epstein-Barr virus (EBV). Production of antibodies against measles virus of the IgG isotype was detected in the supernatants of cell cultures of all patients, regardless of the disease's activity, duration or interferon therapy. In contrast, only some of these cell cultures also produced antibodies against myelin.
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Measles virus nucleocapsid protein expressed in insect cells assembles into nucleocapsid-like structures. J Gen Virol 1993; 74 ( Pt 7):1439-44. [PMID: 8336125 DOI: 10.1099/0022-1317-74-7-1439] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The gene encoding the major nucleocapsid, N, protein of measles virus has been inserted into a baculovirus vector under the control of the polyhedrin promoter. Insect cells infected with this recombinant baculovirus synthesize high levels of measles N protein, up to 40% of total soluble cell protein. The recombinant protein is recognized by sera from convalescent patients, vaccinees and patients with subacute sclerosing panencephalitis and thus could form the basis of a simple diagnostic assay. Nucleocapsid-like structures, similar to those found in mammalian cells infected with measles virus, can be observed in both the nucleus and cytoplasm of the infected insect cells. These have many structural features in common with nucleocapsids found in measles virus-infected cells, but are longer (up to 2 microns) and have a lower buoyant density. Measles N protein thus appears to be capable of assembling into nucleocapsid-like structures in the absence of measles virion RNA or other viral proteins.
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Increased levels of beta 2-microglobulin, soluble interleukin-2 receptor, and soluble CD8 in patients with subacute sclerosing panencephalitis. CLINICAL IMMUNOLOGY AND IMMUNOPATHOLOGY 1992; 65:53-9. [PMID: 1382909 DOI: 10.1016/0090-1229(92)90247-l] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We measured beta 2-microglobulin (beta 2-M), soluble interleukin-2 receptor (sIL-2R), and soluble CD8 (sCD8) antigen levels in paired cerebrospinal fluid (CSF) and sera from patients with subacute sclerosing panencephalitis (SSPE), multiple sclerosis (MS), and other neurological diseases (OND) using enzyme-linked immunosorbent assay. beta 2-M was significantly increased in CSF of the SSPE group compared to the MS or the OND group. Similarly, beta 2-M in the MS versus OND group was significantly increased in CSF. Although serum levels of beta 2-M were similar in the three groups, the CSF/serum ratios were higher in SSPE versus the MS group and in the MS versus the OND group. Levels of sIL-2R and sCD8 were higher in SSPE CSF than OND CSF; however, there were no differences between levels in SSPE and MS CSF. The levels of sIL-2R were increased in SSPE sera compared to those of MS or the OND group, whereas levels of sCD8 in serum from the three groups were similar. The findings of increased CSF/serum ratio of beta 2-M and higher levels of serum sIL-2R and CSF sCD8 in SSPE patients are consistent with those seen in patients with acute and chronic viral infections. When the levels between the initial and follow-up CSF and serum samples from SSPE patients were compared, the data showed that CSF levels of sCD8 elevated during periods of clinical worsening and decreased during clinical improvement. In contrast, serum beta 2-M decreased during periods of worsening and increased during improvement. The measurement of serum beta 2-M and CSF sCD8 may be useful in SSPE patients as markers to monitor disease activity.
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Effect of treatment on oligoclonal IgG bands and intrathecal IgG synthesis in sequential cerebrospinal fluid and serum from patients with subacute sclerosing panencephalitis. J Neurol Sci 1992; 109:64-8. [PMID: 1381411 DOI: 10.1016/0022-510x(92)90095-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Oligoclonal IgG bands were analyzed in matching pairs of cerebrospinal fluid (CSF) and serum from 12 subacute sclerosing panencephalitis (SSPE) patients, using isoelectric focusing and immunofixation. Each patient was given isoprinosine, and four of the 12 patients were given alpha-interferon in addition. Two to 4 serial CSF and serum samples were collected from each SSPE patient during periods ranging from 1 to 16 months. In 3 SSPE patients a small number of new oligoclonal bands were seen in the follow-up CSF samples. In the other 9 SSPE patients there was no change in CSF band patterns between initial and follow-up specimens. Band patterns in serum remained unchanged between initial and follow-up samples. Although all 12 SSPE cases had higher IgG indices and increased rate of intra blood-brain barrier (BBB) IgG synthesis in comparison to patients with other neurological diseases, the values did not significantly differ between the first and follow-up specimens. We conclude that treatment of SSPE patients with isoprinosine or with isoprinosine and alpha-interferon had no significant effect on the CSF oligoclonal band profiles or IgG synthesis within the central nervous system.
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25
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[Secretion of tumor necrosis factor alpha (TNF-alpha) by peripheral blood monocytes in patients with multiple sclerosis and subacute sclerosis panencephalitis]. Neurol Neurochir Pol 1991; 25:455-9. [PMID: 1803255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
TNF alpha production by peripheral blood monocytes was studied in seventeen patients with a recent exacerbation of MS, thirteen with remission of MS and fourteen patients with SSPE. Monocytes from both MS groups spontaneously secreted high amounts of TNF alpha in vitro. Addition of lipopolisaccharide could not stimulate further synthesis of TNF alpha. In SSPE spontaneous and stimulated TNF alpha release did not differ from that in the control group. The observed changes in TNF alpha release in MS patients could play a role in the pathogenesis of the disease.
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26
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CSF oligoclonal banding pattern changes in a long-surviving SSPE patient treated with alpha-IFN. ITALIAN JOURNAL OF NEUROLOGICAL SCIENCES 1991; 12:187-91. [PMID: 2071365 DOI: 10.1007/bf02337032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Oligoclonal bands are a constant, non-modifiable feature of CSF examination in SSPE. We studied CSF oligoclonal IgG banding pattern in a long-surviving SSPE patient treated with serial courses of intrathecal alpha-IFN. alpha-IFN administration did not significantly modify the clinical status of the patient. Oligoclonal IgG banding pattern varied during the 58 month-long treatment. Oligoclonal bands disappeared at the end of the first course only to reappear during the third course, 2 years later, with a different electrophoretic pattern. We conclude that oligoclonal bands may transiently disappear from the CSF of long-surviving SSPE patients. Although alpha-IFN treatment induces no clinical improvement, it might affect the quality of Ig production.
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27
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Measles virus-specific immunoglobulin D antibody in cerebrospinal fluid and serum from patients with subacute sclerosing panencephalitis and multiple sclerosis. J Neuroimmunol 1990; 26:69-74. [PMID: 2294143 DOI: 10.1016/0165-5728(90)90121-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Quantitation of measles-specific immunoglobulin D (IgD) antibody was carried out in cerebrospinal fluid (CSF) and serum samples from 18 patients with subacute sclerosing panencephalitis (SSPE), 12 patients with multiple sclerosis (MS) and seven normal controls with high measles antibody titers in serum, using polyclonal and monoclonal antibodies specific for human IgD and enzyme-linked immunosorbent assay. Measles-specific IgD activity was significantly higher in CSF and serum from SSPE patients compared to that found in patients with MS or normal controls. The IgD antibody to measles virus was not due to high levels of measles-specific IgG since significant measles IgD activity was found after eluting IgG from SSPE serum. The increased level of measles-specific IgD found in SSPE sera is consistent with the levels observed in patients with acute and chronic viral infections.
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28
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Comparative analysis of virus-specific antibodies and immunoglobulins in serum and cerebrospinal fluid of subacute measles virus-induced encephalomyelitis (SAME) in rats and subacute sclerosing panencephalitis (SSPE). J Neuroimmunol 1988; 19:339-52. [PMID: 3262624 PMCID: PMC7119893 DOI: 10.1016/0165-5728(88)90014-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The intrathecal humoral immune response was analysed in patients with subacute sclerosing panencephalitis (SSPE) and Lewis rats with subacute measles virus (MV)-induced encephalomyelitis (SAME). SSPE patients as well as SAME rats revealed oligoclonal, intrathecal antibody synthesis with MV specificity. SAME rats synthesized MV-specific antibodies intracerebrally to a higher extent than SSPE patients. Although a restricted isoelectric pattern of MV-specific antibodies was detected in the cerebrospinal fluid (CSF) of SSPE patients as well as of SAME rats, the heterogeneity within clusters of immunoglobulin bands was higher in the rat specimens. Increase in the blood-brain barrier permeability for albumin was exclusively detected in SAME rats but not in SSPE patients. These data suggest that the rat model offers excellent opportunities to study the initial humoral events in MV-induced encephalitides.
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29
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Leukocyte function in subacute sclerosing panencephalitis. Ann Neurol 1988; 23:423. [PMID: 3382185 DOI: 10.1002/ana.410230430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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30
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Subacute sclerosing panencephalitis: detection of measles virus sequences in RNA extracted from circulating lymphocytes. BRITISH MEDICAL JOURNAL 1988; 296:684. [PMID: 3128370 PMCID: PMC2545302 DOI: 10.1136/bmj.296.6623.684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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31
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Abstract
Elevated levels of soluble interleukin-2 receptors were present in the serum from patients with acute primary and postinfectious encephalitis and subacute sclerosing panencephalitis. In addition, soluble interleukin-2 receptors were detected in the cerebrospinal fluid from patients with acute primary encephalitis. Their presence in the cerebrospinal fluid was not explained by damage to the blood-brain barrier and our data attest to their local origin. This suggests that it may be possible in certain neurological diseases to detect cerebral T-lymphocyte activation through a specific marker in the cerebrospinal fluid.
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32
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Fuzzy material surrounding measles virus nucleocapsids identified as matrix protein. Brief report. Arch Virol 1987; 94:163-8. [PMID: 3579607 DOI: 10.1007/bf01313735] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Measles virus grown in Vero cell cultures was examined at the ultrastructural level after immunoperoxidase staining with antiserum against the matrix protein. The antiserum clearly preferentially labeled the fuzzy material surrounding cytoplasmic nucleocapsids, but not the nucleocapsids themselves.
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33
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Circulating immune complexes in patients with subacute sclerosing panencephalitis. CLINICAL IMMUNOLOGY AND IMMUNOPATHOLOGY 1986; 41:16-25. [PMID: 2943544 DOI: 10.1016/0090-1229(86)90047-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Levels of immune complexes (ICs) in serum and cerebrospinal fluid (CSF) specimens from subacute sclerosing panencephalitis (SSPE) patients were measured using a solid-phase C1q radioimmunoassay. Single or serial serum specimens were available from 19 patients, while serial CSF specimens were available from two patients. ICs isolated from one CSF specimen by C1q immobilized to Affi-Gel were analyzed for measles virus antigens by binding of measles virus-specific antisera and by polyacrylamide gel electrophoresis followed by Western blotting. Of 78 serum specimens analyzed, 36 (46%) were positive for ICs. When the 8 patients with 3 or more serum specimens were analyzed, 6 had fluctuating levels of ICs. Two of 5 CSF specimens obtained from a patient during acute disease onset were IC-positive, while a second patient exhibited a rapid increase and decrease of IC levels in 14 CSF specimens obtained during an acute disease exacerbation. Composition analysis of ICs isolated from one of the CSF specimens revealed the presence of antigens corresponding in size to measles virus polymerase, nucleoprotein, and possibly, hemagglutinin polypeptides. These results show that SSPE patients frequently have ICs, that IC levels fluctuate in both serum and CSF, and that the ICs are at least partially composed of measles virus antigens.
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34
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Detection of measles virus RNA in lymphocytes from peripheral-blood and brain perivascular infiltrates of patients with subacute sclerosing panencephalitis. N Engl J Med 1985; 313:910-5. [PMID: 4033727 DOI: 10.1056/nejm198510103131502] [Citation(s) in RCA: 76] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To clarify the relation between lymphocytes and measles virus in subacute sclerosing panencephalitis, we used in situ hybridization and a cloned measles virus DNA probe, specific for nucleocapsid protein, to detect measles virus RNA sequences in circulating lymphocytes and brain perivascular cuffs of patients with subacute sclerosing panencephalitis. Seventy to 90 per cent of peripheral mononuclear cells from three such patients were found to contain measles virus RNA sequences. In contrast, only a few infected cells were observed in four seropositive adults (0.1 to 5 per cent) and three age-matched children (10 to 15 per cent) used as controls. In one sample of brain tissue from a patient with subacute sclerosing panencephalitis, viral RNA sequences were also detected in nerve cells and in numerous cells from the perivascular infiltrates. In contrast, no hybridization was observed in brain tissue from a patient with herpetic encephalitis and from a patient with postlymphoma encephalitis. We conclude that measles virus has a strong tropism for lymphocytes and nerve cells in subacute sclerosing panencephalitis and that lymphocytes may be involved in the pathogenesis of the disease.
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35
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Abstract
A thermostable alpha 2 globulin inhibiting the immunoglobulin/anti-immunoglobulin reaction was demonstrated working with subacute sclerosing panencephalitis (SSPE) and control serum IgG. This protein was isolated from SSPE and normal human blood, it inhibits the immunoglobulin/anti-immunoglobulin reaction but no other antigen/antibody reactions when applying different immunochemical methods such as nitrocellulose immunofixation, 2 site immunoradiometric assay, solid phase radioimmunoassay in coated cups. This was demonstrated, working on the one hand with measles virus strain Edmonston or SSPE virus strain D.R. and SSPE serum and on the other hand with IgG from SSPE and control serum. This alpha 2 globulin, an inhibiting protein, appears to be related to "normal immunosuppressive protein".
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36
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Abstract
Using the method of haemagglutination inhibition, the authors determined the levels of measles antibodies in the saliva of 14 children with subacute sclerosing panencephalitis. In 13 of them these antibodies were found in titres from 1:8 to 1:128. In the control groups, comprising 29 children, these antibodies were found in the saliva in only two cases and in low titres. There appears to be a correlation between the levels of these antibodies in the saliva and cerebrospinal fluid in patients with subacute sclerosing panencephalitis.
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37
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Serum amyloid A (SAA) in viral infection: rubella, measles and subacute sclerosing panencephalitis (SSPE). Clin Exp Immunol 1982; 50:503-6. [PMID: 7165997 PMCID: PMC1536832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Serum amyloid A (SAA) levels were determined in the serial serum samples of eight rubella, 10 measles and seven subacute sclerosing panencephalitis (SSPE) patients. An early rise in SAA levels was detected in the acute phase in rubella and measles, followed by a prompt decrease in the convalescent phase. In a number of measles and rubella patients from whom early serum samples were available, the rise of SAA levels could be demonstrated before specific viral antibodies could be detected by complement fixation (CF) (measles) and haemagglutination inhibition (HI) (rubella). In only one rubella and one measles patient was no rise of SAA level detected. In SSPE only a moderate increase in SAA levels was noted except in one patient during a temporary deterioration, at which time the SAA level was very high; it returned to close to normal shortly thereafter. The possibility that SAA levels might be of value in monitoring the severity of infections, the recovery process and effects of anti-viral agents is discussed.
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38
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Different virus antibodies in serum and cerebrospinal fluid of patients suffering from subacute sclerosing panencephalitis. J Neuroimmunol 1982; 2:27-34. [PMID: 6296199 DOI: 10.1016/0165-5728(82)90073-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Complement fixing (CF) antibody titers to measles, parainfluenza (PI) types 1 and 3, mumps, herpes type 1, and cytomegalovirus (CMV) in serum and cerebrospinal fluid (CSF) of 33 patients with subacute sclerosing panencephalitis (SSPE) were evaluated. Results were analyzed in comparison to 11 patients with neurological diseases other than SSPE and 7 normal subjects. All SSPE patients had elevated serum and CSF measles antibody titers. The number of SSPE patients manifesting elevated titers other than measles did not reach statistical significance when compared to controls, except for PI type 1. This suggests a possible dual infection with measles and PI in SSPE. The anticomplementary effect detected in the serum and CSF of some patients indirectly suggests the presence of immune complexes.
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39
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[Subacute viral infection in the central nervous system -- subacute sclerosing panencephalitis]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1981; 39:2303-7. [PMID: 7031302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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40
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Protein patterns of the cerebrospinal fluid of 30 patients with subacute sclerosing panencephalitis (SSPE). Acta Neurol Scand 1981; 63:255-66. [PMID: 7211190 DOI: 10.1111/j.1600-0404.1981.tb00779.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Lumbar cerebrospinal fluid (CSF) from 30 cases of subacute sclerosing panencephalitis (SSPE) was studied for total protein and protein electrophoresis. Total CSF protein values were normal in almost all the cases, but the gamma-globulin was increased and had an oligoclonal morphology in all the cases. Absolute and relative values of some of the other electrophoretic fractions were decreased. Total protein and electrophoretic serum values in 25 cases did not differ significantly from the controls, although the gamma-globulin presented an oligoclonal morphology in 13 cases. CSF immunoglobulins were determined in 10 cases; IGG was increased in ll; IgA was traceable and slightly increased in only four cases; IgM was not found. These findings point to the intrathecal synthesis of IgG and the absence of barrier impairment. The decrease of the absolute values of some of the other CSF proteins suggests that homeostatic mechanisms for protein concentration in the CSF are maintained in SSPE.
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41
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Abstract
A new indirect peroxidase antibody to membrane antigen (IPAMA) technique for the detection of IgG specific antibodies against measles virus is described. The technique utilizes as antigen measles-infected Vero cells dried on glass slides and stored at --70 degrees C. Sera of 509 healthy medical students and laboratory workers and 24 sera of measles, encephalitis, and subacute sclerosing panencephalitis (SSPE) patients were checked by IPAMA and the results have been compared with the results obtained by the hemagglutination-inhibition (HI) test. There is good agreement between the results of both techniques as to the presence or absence of antibody in 48 out of the 50 tested. The advantages of the techniques are discussed.
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42
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Prevalence of measles antibodies in patients with subacute sclerosing panencephalitis in Poland in the years 1971--1978. J Neurol 1980; 224:145-53. [PMID: 6160218 DOI: 10.1007/bf00313352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Between 1971 and 1978, clinical centres in four provinces of Poland reported 107 cases of subacute sclerosing panencephalitis (SSPE). This series comprised 73.8% boys and 26.2% girls. Most children were aged 6--8 years, and 66% of them had had measles in the first two years of life. As compared with a control group the geometric means of the haemagglutination-inhibiting antibodies and neutralizing antibodies were between ten and twenty times higher in SSPE patients. Determinations of the levels of antibodies carried out several times during the disease showed a rise of the titres to values as high as 1 : 128,000 in the serum and 1 : 1,024 in the cerebrospinal fluid in some cases.
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43
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Chromosome changes in the leukocytes from patients with subacute sclerosing panencephalitis. Virologie (Montrouge) 1980; 31:103-10. [PMID: 7405009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Alterations in chromosome number and structure could be detected in phytohemagglutin-stimulated leukocyte cultures from four patients with an ascertained diagnosis, of subacute sclerosing panencephalitis. Chromosome changes are polymorphous, involving most frequently the acrocentric group G or D chromosomes. It is suggested that chromosome damage might represent a diagnostic indication before the onset of neurologic symptoms.
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44
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Surface markers on lymphocytes from human cerebrospinal fluid. II. Altered patterns in subacute sclerosing panencephalitis. Eur Neurol 1980; 19:241-6. [PMID: 6967405 DOI: 10.1159/000115153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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45
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A heat stable serum inhibitor of an antigen antibody reaction of subacute sclerosing panencephalitis. J Neurol 1977; 216:51-6. [PMID: 72794 DOI: 10.1007/bf00312816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A factor which inhibits the antigen antibody reaction was isolated from the sera of patients affected with subacute sclerosing panencephalitis (SSPE), multiple sclerosis (MS) and also of control subjects. This factor inhibits the immune reaction between SSPE serum IgGs and measles virus. This inhibiting factor was detected in the alpha globulin region after agar gel electrophoresis, and is heat stable at 100 degrees C for ten minutes.
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46
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47
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Letter: Host inhibitory or blocking factor in subacute sclerosing panencephalitis. J Pediatr 1976; 89:518-9. [PMID: 956990 DOI: 10.1016/s0022-3476(76)80577-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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48
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Letter: Interferon in serum and cerebrospinal fluid in subacute sclerosing panencephalitis. CANADIAN MEDICAL ASSOCIATION JOURNAL 1976; 115:309. [PMID: 953897 PMCID: PMC1878664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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49
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Immunofixation electrophoretic techniques applied to identification of proteins in serum and cerebrospinal fluid. Clin Chem 1976; 22:1262-8. [PMID: 949834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We describe the application of immunofixation staining of agarose-gel electrophoretograms in areas where its use in the clinical laboratory is appropriate. Immunofixation electrophoresis consists of an electrophoretic phase followed by a fixation phase in which antiserum is used to precipitate the protein. As long as the antibody is in slight excess or near equivalency, the antigen/antibody complex remains insoluble. The reaction can be detected by visual inspection in indirect light, by protein staining, or by use of antibodies labeled with fluorescein, enzyme, or isotope. In the method described here we primarily have used protein staining (Coomassie Blue) to accentuate the proteins fixed by antisera. All unreacted proteins are removed by pressing with filter paper and saline washing. In the clinical laboratory, this method expedites immunochemical evaluation of samples and may also supplement immunoelectrophoresis. It has been applied successfully in identifying small obscure monoclonal proteins in the serum and cerebrospinal fluid of patients with multiple sclerosis, subacute sclerosing panencephalitis, biclonal gammopathies, serum monoclonal light chains, and mobility shifts of certain proteins, particularly of the complement series. Immunofixation demonstrates that the protein bands present in spinal fluid from multiple sclerosis and subacute sclerosing panencephalitis patients are of the IgG class of immunoglobulins; and non-IgG protein, such as beta and gamma trace proteins, are not detected. We also comment on reverse immunofixation with labeled antigen as a branch of the procedure that allows detection of function of the immunoglobulins separated by electrophoresis.
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50
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Bound and free light chains in subacute sclerosing panencephalitis and multiple sclerosis serum and cerebrospinal fluid. ZEITSCHRIFT FUR KLINISCHE CHEMIE UND KLINISCHE BIOCHEMIE 1975; 13:305-10. [PMID: 810984 DOI: 10.1515/cclm.1975.13.7.305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The kappa-lambda light chain ratios, the presence of free light chains and the double ring formation, with antikappa and antilambda serum, in single radial immunodiffusion were investigated in serum and cerebrospinal fluid of patients with subacute sclerosing panencephalitis. Cerebrospinal fluid samples of several multiple sclerosis cases were considered simultaneously. The results obtained suggest special immunoglobulin synthesis in both diseases.
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