Background: Natural measles virus infection as well as vaccination with attenuated measles virus induce temporary immunosuppression, which is responsible for part of the morbidity and mortality associated with measles. The underlying molecular mechanisms are not known. Recently, in vitro studies have revealed a marked increase of LFA-1 expression of lymphocytes in the presence of infectious measles virus.
Objectives: In order to further investigate immune dysfunction in measles we analyzed the expression of leukocyte function-associated antigen 1 (LFA-1) on ex vivo derived circulating human T cells.
Study Design: Expression of LFA-1 was measured by flow cytometry using monoclonal antibodies directed against CD11a and CD18. LFA-1 expression was followed in the course of infection in four adult seronegative vaccinees and in four patients with natural measles.
Results: There was a remarkable loss of LFA-1-bright cells during natural measles and after measles vaccination. The number of LFA-1-bright cells reached a minimum on day 7-14 after vaccination, and at the onset of rash during natural measles infection, and approached normal levels within 3-5 weeks.
Conclusion: It is suggested that measles virus infection interferes with lymphocyte trafficking and reallocation. Disruption of recirculation and random homing of lymphocytes might contribute to the immunosuppression, which is characteristic for measles virus infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s1386-6532(99)00002-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Revaccination and its efficacy against hepatitis B virus, measles, mumps, and rubella in children after allogeneic hematopoietic stem cell transplantation.
Chin Med J (Engl)
January 2025
Department of Infectious Disease, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, and National Children's Medical Center, Shanghai 200127, China.
A Roadmap Towards the Identification and Validation of Conserved T Cell Epitope Regions in Viral Pathogen Families with Pandemic Potential.
Curr Pharm Biotechnol
January 2025
Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA.
The SARS-CoV-2 pandemic has highlighted the need for society, as a whole, to be prepared against potential pandemics caused by a variety of different viral families of concern. Here, we describe a roadmap towards the identification and validation of conserved T cell epitope regions from Viral Families of Pandemic Potential (VFPP). For each viral family, we select a prototype virus, the sequence of which could be utilized in epitope identification screens.
View Article and Find Full Text PDFInterventions to Maintain HIV/AIDS, Tuberculosis, and Malaria Service Delivery During Public Health Emergencies in Low- and Middle-Income Countries: Protocol for a Systematic Review.
JMIR Res Protoc
January 2025
Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
Background: Although existing disease preparedness and response frameworks provide guidance about strengthening emergency response capacity, little attention is paid to health service continuity during emergency responses. During the 2014 Ebola outbreak, there were 11,325 reported deaths due to the Ebola virus and yet disruption in access to care caused more than 10,000 additional deaths due to measles, HIV/AIDS, tuberculosis, and malaria. Low- and middle-income countries account for the largest disease burden due to HIV, tuberculosis, and malaria and yet previous responses to health emergencies showed that HIV, tuberculosis, and malaria service delivery can be significantly disrupted.
View Article and Find Full Text PDFAim: Romania is currently facing a prolonged measles outbreak. The aim of the study was to analyse the circulating human measles virus (HMV) strains by combining whole genome sequencing (WGS) with phylogenetic analysis, with a focus on the haemagglutinin gene.
Methods: We conducted an observational study in the first five months of 2024, in which 168 patients diagnosed with measles were randomly included.
The Polygenic Nature of Multiple Sclerosis: Genetic Variants, Immunological Modulation, and Environmental Connections.
Endocr Metab Immune Disord Drug Targets
December 2024
Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Block 23, Sofia1113, Bulgaria.
Multiple Sclerosis (MS), a debilitating inflammatory disorder of the central nervous system characterized by demyelination, is significantly influenced by polygenic variations. Although the precise cause of MS remains unclear, it is believed to arise from a complex interplay of genetic and environmental factors. Recent investigations have focused on the polygenic nature of genetic alterations linked to MS risk.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!