Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Human T-lymphotropic virus-1 (HTLV-1) induces neoplastic adult T-cell leukemia/lymphoma (ATLL) and neurological HTLV-1 associated myelopathy (HAM) in approximately 3 %-5 % of infected individuals. The precise factors that facilitate disease manifestation are still unknown; interaction between the virus and the host's immune response is key. Cytokines regulates physiological activities and their dysregulation may initiate the pathogenesis of various malignant and infectious diseases. Genetic variations, particularly polymorphisms in gene regulatory regions, lead to varying cytokine production patterns. Interferon-gamma (IFN-γ), a key cytokine in HTLV-1 infection, is a signature cytokine for T-helper 1 (Th1) cells that interferes with viral replication and enhances innate and adaptive immune responses during viral infections. The IFNG gene possesses several single nucleotide polymorphisms (SNPs), among which the + 874 A/T SNP has been widely studied for its functional role in HTLV-1 infection. The purpose of this review was to provide insight into the impact of IFNG SNPs on HTLV-1 Infection.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.critrevonc.2025.104614DOI Listing

Publication Analysis

Top Keywords

htlv-1 infection
16
single nucleotide
8
nucleotide polymorphisms
8
htlv-1
6
exploring impact
4
impact interferon-gamma
4
interferon-gamma single
4
polymorphisms htlv-1
4
infection
4
infection unraveling
4

Similar Publications

Mother-to-child transmission (MTCT) is the primary route of human T-lymphotropic virus type 1 (HTLV-1) infection. Although formula feeding reduces breastfeeding-associated transmission, MTCT still occurs, implicating pregnancy or delivery as key transmission windows. In this study, placental tissues from nine HTLV-1-positive mothers were analyzed using DNA/RNAscope, revealing low HTLV-1 DNA and RNA levels and a low RNA/DNA ratio, consistent with latent infection in the placenta and potentially explaining the low MTCT rate.

View Article and Find Full Text PDF

Outcomes of patients aged 70 years or younger with aggressive ATL at core hospitals for ATL treatment in Tokyo.

Int J Hematol

September 2025

Department of Hematology/Oncology, Research Hospital, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, Japan.

Adult T-cell leukemia-lymphoma (ATL) is one of the most intractable peripheral T-cell neoplasms caused by human T-cell leukemia virus type I (HTLV-1) infection. Recently, the incidence of HTLV-1 infection and ATL has increased in non-endemic metropolitan areas in Japan. This retrospective study evaluated the clinical features and outcomes of patients with aggressive ATL aged 70 years or younger treated at a core hospital in Tokyo between 2004 and 2016.

View Article and Find Full Text PDF

Human T-cell leukemia virus type 1: oncogenic potential and vaccine development strategies.

Front Cell Infect Microbiol

September 2025

One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador.

The human T-cell lymphotropic virus type 1 (HTLV-1) is a highly oncogenic retrovirus recognized as the causative agent of adult T-cell leukemia/lymphoma (ATLL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Among the key risk factors for ATLL development are high proviral load, reduced anti-Tax immune responses, and elevated levels of soluble interleukin-2 receptor. Unlike classical oncogenic viruses, HTLV-1 does not encode proto-oncogenes but instead drives cellular transformation through a combination of mechanisms, including viral gene dysregulation, chromatin remodeling, epigenetic reprogramming, persistent clonal expansion, immune evasion, and RNA-based modifications.

View Article and Find Full Text PDF

Prevalence of human T-cell leukemia virus type 1 associated inflammatory myopathies (HAIM) in Salvador, Brazil.

PLoS Negl Trop Dis

August 2025

Centro Integrativo e Multidisciplinar de HTLV, Centro de Neurociências Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil.

Background: Human T-cell leukemia virus type 1 (HTLV-1) causes inflammatory diseases and is associated with various muscle abnormalities, including polymyositis. Elevated serum creatine kinase (CPK) levels are typically indicative of muscle damage.

Aims: This study aimed to determine the prevalence of HTLV-1 associated inflammatory myopathies (HAIM) in a large cohort of People living with HTLV-1 from Salvador, Brazil.

View Article and Find Full Text PDF

Introduction: Alterations in the immune response may influence the development of HTLV-1-associated diseases. TLR3 detects viral nucleic acids, including HTLV-1, and triggers the production of IFN-I and other cytokines. Genetic variations in may alter the antiviral and inflammatory responses and contribute to the progression of HTLV-1 infection.

View Article and Find Full Text PDF