Multiple sclerosis (MS) is an increasingly prevalent progressive autoimmune and debilitating chronic disease that involves the detrimental recognition of central nervous system (CNS) antigens by the immune system. Although significant progress has been made in the last decades on the biology of MS and the identification of novel therapies to treat its symptoms, the etiology of this disease remains unknown. However, recent studies have suggested that viral infections may contribute to disease onset. Interestingly, a potential association between herpes simplex virus type 1 (HSV-1) infection and MS has been reported, yet a direct relationship among both has not been conclusively demonstrated. Experimental autoimmune encephalomyelitis (EAE) recapitulates several aspects of MS in humans and is widely used to study this disease. Here, we evaluated the effect of asymptomatic brain infection by HSV-1 on the onset and severity of EAE in C57BL/6 mice. We also evaluated the effect of infection with an HSV-1-mutant that is attenuated in neurovirulence and does not cause encephalitis. Importantly, we observed more severe EAE in mice previously infected either, with the wild-type (WT) or the mutant HSV-1, as compared to uninfected control mice. Also, earlier EAE onset was seen after WT virus inoculation. These findings support the notion that a previous exposure to HSV-1 can accelerate and enhance EAE, which suggests a potential contribution of asymptomatic HSV-1 to the onset and severity of MS.
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http://dx.doi.org/10.3389/fimmu.2021.635257 | DOI Listing |
Zhonghua Bing Li Xue Za Zhi
February 2025
Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China.
Int J Antimicrob Agents
January 2025
School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China. Electronic address:
The prevalence of herpes simplex virus type 1 (HSV-1) infection and the emergence of drug-resistant HSV-1 strains posts a significant global health challenge, necessitating the urgent development of effective anti-HSV-1 drugs. As one of the most prevalent molecular chaperones, heat shock protein 90 α (Hsp90α) has been extensively demonstrated to regulate a range of viral infections, thus representing a promising antiviral target. In this study, we identified JD-13 as a novel Hsp90α inhibitor and explored its capability in inhibiting HSV-1 infection.
View Article and Find Full Text PDFViruses
January 2025
Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
In this narrative review, we explore the burden and risk factors of various herpesvirus infections in patients receiving chimeric antigen receptor T-cell (CAR-T) therapy or bispecific antibodies (BsAb) for the treatment of hematologic malignancies. Antiviral prophylaxis for herpes simplex/varicella zoster viruses became part of the standard of care in this patient population. Breakthrough infections may rarely occur, and the optimal duration of prophylaxis as well as the timing of recombinant zoster immunization remain to be explored.
View Article and Find Full Text PDFPathogens
January 2025
Department of Medical Microbiology, Faculty of Medicine, Sakarya University, 54100 Sakarya, Turkey.
Rubella Virus, Cytomegalovirus (CMV), Herpes Simplex Virus-2 (HSV-2), Hepatitis B (HBV) and Hepatitis C virus (HCV) can cause serious fetal disease. The seropositivity rates of these agents vary among countries and geographic regions. This study aimed to analyze the prevalence rates and diagnostic methods used in studies investigating the seroprevalence of viral pathogens in the TORCH group among pregnant women in Turkey between 2005 and 2024.
View Article and Find Full Text PDFJ Clin Med
January 2025
Eye Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany.
: Clinically inactive corneal scars have repeatedly been shown to exhibit histological inflammation. This study aimed to evaluate the degree of histological inflammation in clinically inactive corneal scars of different origins and its correlation with graft rejection and failure following penetrating keratoplasty. : The study included 205 primary corneal explants with clinically inactive central scars resulting from herpes simplex virus keratitis (HSV, = 55), keratoconus ( = 39), mechanical trauma ( = 27), scrophulosa ( = 22) or other/unknown causes ( = 62).
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