Human immunodeficiency virus (HIV) infection alters the function and repertoire of peripheral blood gamma delta T cells expressing the V gamma 2/V delta 2 T cell receptor (TCR). A cross-sectional comparison of the V gamma 2 TCR repertoire was performed for 56 HIV-infected subjects, 51 of whom were receiving highly active antiretroviral therapy (HAART), to measure changes in the V gamma 2 TCR repertoire. Longer durations of HAART were associated with partial recovery of the normal TCR repertoire, and recovery was greatest in subjects with complete virus suppression. Changes in the V gamma 2 TCR repertoire are sensitive measures for the effects of HAART and of residual HIV replication.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1086/382961 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tumor infiltration of inactive CD8 + T cells was associated with poor prognosis in Gastric Cancer.
Gastric Cancer
December 2024
Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
Background: Gastric cancer (GC) shows limited response to immune checkpoint inhibitors due to its complex tumor immune microenvironment (TIME). This study explores the functions of various immune cells in the complex TIME in GC.
Methods: We assessed CD8 + T-cell infiltration of GC tissues by immunohistochemistry, and performed single-cell RNA sequencing (scRNA-seq) of tumor and normal tissues from 34 patients with GC.
High peripheral T cell diversity is associated with lower risk of toxicity and superior response to dual immune checkpoint inhibitor therapy in patients with metastatic NSCLC.
J Immunother Cancer
December 2024
Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Introduction: Despite significant successes, immune checkpoint blockade fails to achieve clinical responses in a significant proportion of patients, predictive markers for responses are imperfect and immune-related adverse events (irAEs) are unpredictable. We used T-cell receptor (TCR) sequencing to systematically analyze prospectively collected patient blood samples from a randomized clinical trial of dual immune checkpoint inhibitor therapy to evaluate changes in the T-cell repertoire and their association with response and irAEs.
Methods: Patients with immunotherapy-naïve metastatic non-small cell lung cancer (NSCLC) were treated with ipilimumab and nivolumab according to trial protocol (LONESTAR, NCT03391869).
Characteristics of peripheral immune response induced by large-vessel occlusion in patients with acute ischemic stroke.
Front Neurol
December 2024
Department of Stroke Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
Introduction: Despite improvements in the treatment of acute ischemic stroke (AIS), some patients still suffer from functional impairments, indicating the poor understanding of pathophysiologic process of AIS. Inflammation plays an important role in the pathophysiology of AIS. The purpose of the study was to investigate the peripheral inflammation in different subtypes of AIS.
View Article and Find Full Text PDFCracking the code of adaptive immunity: The role of computational tools.
Cell Syst
December 2024
Department of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA. Electronic address:
In recent years, the advances in high-throughput and deep sequencing have generated a diverse amount of adaptive immune repertoire data. This surge in data has seen a proportional increase in computational methods aimed to characterize T cell receptor (TCR) repertoires. In this perspective, we will provide a brief commentary on the various domains of TCR repertoire analysis, their respective computational methods, and the ongoing challenges.
View Article and Find Full Text PDFT-cell diversity and exclusion of blood-derived T-cells in the tumor microenvironment of classical Hodgkin Lymphoma.
Leukemia
December 2024
Department of Pathology, Hematopathology Section, University Hospital Schleswig-Holstein Campus, Kiel, Germany.
The Tumor Microenvironment (TME) in classical Hodgkin Lymphoma (HL) contains abundant immune cells and only few neoplastic Hodgkin and Reed-Sternberg cells (HRSC). We analyzed the T-cell receptor (TCR) repertoire to detect T-cell expansion in the TME and blood. In contrast to solid cancer tissue, T-cells in the TME of HL are highly polyclonal at first diagnosis and show only minor clonal expansion during anti-PD1 immune checkpoint blockade (ICB).
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!