98%
921
2 minutes
20
We recently developed a novel targeting Sindbis virus envelope pseudotyped lentiviral vector, 2.2ZZ, which acquires specific transduction capacity by antibody conjugation and binding with specific antigens on the surface of targeted cells. Here we characterize the virological properties of this vector by examining its targeting to CD4 antigen. Our results show that entry is dependent on CD4 cell surface density and occurs via the clathrin-mediated endocytic pathway. These findings provide insight into the mechanism of infection by a new viral vector with combined properties of Sindbis virus and lentiviruses and infectivity conferred by monoclonal antibody-ligand interactions.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2786851 | PMC |
http://dx.doi.org/10.1128/JVI.01530-09 | DOI Listing |
Front Pharmacol
August 2025
Department of Pharmacy, Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Malaysia.
Sickle cell disease (SCD) is an inherited blood disorder marked by the production of abnormal hemoglobin, leading to the distortion-or sickling-of red blood cells. The SCD arises from a single-point mutation that substitutes glutamic acid with valine at the sixth codon of the β-globin chain in hemoglobin. This substitution promotes deoxyhemoglobin aggregation, elevating red blood cell stiffness, and triggering vaso-occlusive and hemolytic repercussions.
View Article and Find Full Text PDFFront Immunol
September 2025
Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Background: Multiplex gene-edited chimeric antigen receptor (CAR) T-cell therapies face significant challenges, including potential oncogenic risks associated with double-strand DNA breaks. Targeted microRNAs (miRNAs) may provide a safer, functional, and tunable alternative for gene silencing without the need for DNA editing.
Methods: As a proof of concept for multiplex gene silencing, we employed an optimized miRNA backbone and gene architecture to silence T-cell receptor (TCR) and major histocompatibility complex class I (MHC-I) in mesothelin-directed CAR (M5CAR) T cells.
Front Immunol
September 2025
Department of Rheumatology and Immunology, The First Hospital of China Medical University, China Medical University, Shenyang, Liaoning, China.
CAR-T cell therapy has been proven effective in various autoimmune diseases, with most studies utilizing lentiviral-transduced CAR-T cells. In recent years, retroviral vector-transduced CAR-T cells-characterized by a high positivity rate, stable cell lines, and lower plasmid requirements-have attracted increasing attention. This article presents a complex case of a patient with SLE combined with APS and TBIRS.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
May 2025
Department of Rehabilitation Medicine, Second Xiangya Hospital, Central South University, Changsha 410011.
Objectives: Osteoarthritis (OA) is one of the most common chronic degenerative diseases, with chondrocyte apoptosis and extracellular matrix (ECM) degradation as the major pathological changes. The mechanical stimulation can attenuate chondrocyte apoptosis and promote ECM synthesis, but the underlying molecular mechanisms remain unclear. This study aims to investigate the role of primary cilia (PC) in mediating the effects of mechanical stimulation on OA progression.
View Article and Find Full Text PDFBiochem Pharmacol
September 2025
Guizhou Medical University, Guiyang 550004 Guizhou, PR China; Department of Cardiovascular Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004 Guizhou, PR China; The Key Laboratory of Myocardial Remodeling Research, The Affiliated Hospital of Guizhou Medical University, G
Atherosclerosis (AS), a chronic inflammatory disease and a leading cause of cardiovascular morbidity and mortality. Macrophage-mediated lipid uptake and inflammation are central to plaque formation. TREM2, an immunoreceptor expressed in macrophages, has been reported to regulate lipid metabolism and inflammation, yet its role in atherosclerosis remains controversial.
View Article and Find Full Text PDF