Lymphatic tissue is one of the main sites for replication of Junin virus. To characterize which cells are involved in that replication, the presence of Junin virus in purified populations of macrophages and dendritic cells from the spleens of guinea pigs infected with pathogenic and attenuated strains was investigated by immunofluorescence and intracerebral inoculation into newborn mice. The pathogenic strain was present both in macrophages and in dendritic cells, but the attenuated strain selectively infected dendritic cells. These observations suggest that the pathogenic behavior and replication efficiency of these two strains of Junin virus may be related to a difference in cell targets.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC264636PMC
http://dx.doi.org/10.1128/iai.41.3.1279-1283.1983DOI Listing

Publication Analysis

Top Keywords

junin virus
16
dendritic cells
12
pathogenic attenuated
8
attenuated strains
8
strains junin
8
lymphatic tissue
8
macrophages dendritic
8
vivo replication
4
pathogenic
4
replication pathogenic
4

Similar Publications

The Junín virus (JUNV) is one of the New World arenaviruses that cause severe hemorrhagic fever. Human transferrin receptor 1 (hTfR1) has been identified as the main receptor for JUNV for virus entry into host cells. To date, no treatment has been approved for JUNV.

View Article and Find Full Text PDF

The Junin virus causes Argentine hemorrhagic fever, leading to severe complications such as high fever, malaise, muscle pain, and bleeding disorders, including hemorrhages in the skin and mucous membranes. Neurological issues like confusion, seizures, and coma can also occur. Without prompt and effective treatment, the disease can be fatal, with mortality rates reaching up to 30%.

View Article and Find Full Text PDF

U-73122, a phospholipase C inhibitor, impairs lymphocytic choriomeningitis virus virion infectivity.

J Gen Virol

December 2024

Laboratory of Emerging Viral Diseases, International Research Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.

Lassa virus (LASV) is an Old World (OW) mammarenavirus that causes Lassa fever, a life-threatening acute febrile disease endemic in West Africa. Lymphocytic choriomeningitis virus (LCMV) is a worldwide-distributed, prototypic OW mammarenavirus of clinical significance that has been largely neglected as a human pathogen. No licensed OW mammarenavirus vaccines are available, and the current therapeutic option is limited to the off-label use of ribavirin, which offers only partial efficacy.

View Article and Find Full Text PDF

[Acute undifferentiated febrile illness among outpatients: differential diagnosis between dengue, zika, Argentine hemorrhagic fever and COVID-19].

Medicina (B Aires)

December 2024

Fundación para la Investigación en Neuro Epidemiología (FINEP), Junín, Buenos Aires, Argentina.

The "acute undifferentiated febrile illness" (AUFI) encompasses a range of diseases characterized by the presence of fever, often prompting consultations in emergency services. During epidemics like COVID-19 or dengue, a surge in consultations occurs, resulting in long wait times for patients. Errors in first diagnosis can result in severe consequences.

View Article and Find Full Text PDF

Several Old World and New World Mammarenavirus are responsible for hemorrhagic fever in humans. These enveloped viruses have a bi-segmented ambisense RNA genome that encodes four proteins. All Mammarenavirus identified to date share a common dependency on myristoylation: the addition of the C14 myristic acid on the N-terminal G2 residue on two of their proteins.

View Article and Find Full Text PDF

Want 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!