01 March 2005 : Original article
Co-localization of human herpes virus 6 and tissue plasminogen activator in multiple sclerosis brain tissue
Jussi Oskari Virtanen, John B. Zabriskie, Vappu Sirén, Jacqueline E. Friedman, Michael J. Lyons, Mark Edgar, Antti Vaheri, Marjaleena KoskiniemiMed Sci Monit 2005; 11(3): BR84-87 :: ID: 15381
Abstract
Background: Multiple sclerosis (MS) is a chronic infl ammatory disease of the central nervous system of unknown etiology. Several viruses have been suggested as playing a role in the pathogenesis of MS. The aim of this study was to investigate the interrelationship of human herpesvirus 6 (HHV-6) and plasminogen activation at the cellular level in MS plaques.
Material/Methods: Brain tissue specimens obtained from autopsies of 15 patients with MS and 10 controls were studied immunohistochemically for HHV-6 and cytomegalovirus (CMV) antigen and tissue plasminogen activator (tPA) protein. The presence of Ebstein-Barr virus (EBV) EBER RNA was studied using RNA in situ hybridization.
Results: HHV-6 antigen was identifi ed in the cells of 67% (10/15) of MS brain sections and 30% (3/10) of the control sections. All samples were negative for CMV antigen and all samples with intact RNA were negative for EBV EBER RNA as demonstrated by in situ hybridization. tPA expression was found to be increased in MS plaques compared with the control samples. Interestingly, in 5 MS samples both HHV-6 antigen and tPA stained clearly, compared with none in the controls, but HHV-6 and tPA only occasionally co-localized in the same cells.
Conclusions: At the cellular level, HHV-6 and plasminogen activation seem to co-localize in MS.
Keywords: Herpesvirus 6, Human - isolation & purification, Herpesvirus 6, Human - metabolism, Multiple Sclerosis - virology, Antigens, Viral - immunology, Brain - virology, Case-Control Studies, Herpesvirus 6, Human - metabolism, In Situ Hybridization, Multiple Sclerosis - virology, Tissue Plasminogen Activator - metabolism
882 2
Editorial
01 June 2023 : Editorial
Editorial: Infectious Disease Surveillance Using Artificial Intelligence (AI) and its Role in Epidemic and Pandemic PreparednessDOI: 10.12659/MSM.941209
Med Sci Monit 2023; 29:e941209
In Press
07 Jun 2023 : Review article
Ultrasound-Guided Brachial Plexus Block by Costoclavicular Space Approach: A Narrative ReviewMed Sci Monit In Press; DOI: 10.12659/MSM.939920
05 Jun 2023 : Clinical Research
Comparison of Texture and Color Enhancement Imaging with White Light Imaging in 52 Patients with Short-Segm...Med Sci Monit In Press; DOI: 10.12659/MSM.940249
05 Jun 2023 : Laboratory Research
Comparison of Composite Resin (Duo-Shade) Shade Guide with Vita Ceramic Shades Before and After Chemical an...Med Sci Monit In Press; DOI: 10.12659/MSM.940949
02 Jun 2023 : Database Analysis
The COVID-19 Crisis and the Incidence of Alcohol-Related Deaths in PolandMed Sci Monit In Press; DOI: 10.12659/MSM.940904
Most Viewed Current Articles
13 Nov 2021 : Clinical Research
Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...DOI :10.12659/MSM.932788
Med Sci Monit 2021; 27:e932788
30 Dec 2021 : Clinical Research
Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...DOI :10.12659/MSM.935379
Med Sci Monit 2021; 27:e935379
08 Mar 2022 : Review article
A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...DOI :10.12659/MSM.936292
Med Sci Monit 2022; 28:e936292
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952