Related Experiment Video
Updated: Aug 7, 2026

Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
Specificity of cell surface virus receptors on radiation leukemia virus and radiation-induced thymic lymphomas
Abstract:
We have developed a system for analysis of murine leukemic virus (MuLV) receptors on the surface of thymic lymphoma cells utilizing the fluorescence-activated cell sorter. The binding of fluoresceinated or rhodaminated MuLV to target cells showed saturation kinetics and was blocked by homologous MuLV, and bound MuLV had a polypeptide profile identical to that of input MuLV. Thymic lymphomas bound specifically the MuLV which induced them, whereas only 0.5 to 2% of normal thymocytes showed equivalent MuLV binding. Simultaneous binding of excess fluoresceinated RadLV and rhodaminated MCF-247 AKR virus to radiation leukemia virus-induced or spontaneous AKR thymic lymphomas demonstrated that even in the presence of both viruses the cells bound preferentially the inducing MuLV. Examination of the C57BL/Ka endogenous viruses showed that radiation leukemia virus-induced thymic lymphomas bind only thymotropic-leukemogenic radiation leukemia virus and not eco- or xenofibrotropic MuLV's. Thus, virus binding in this system involves only leukemogenic isolates of these retroviruses and implies a central role of this receptor-ligand interaction in the processes of leukemic transformation.
Insights
Researchers identified specific murine leukemic virus (MuLV) receptors on thymic lymphoma cells. This receptor-ligand interaction is crucial for leukemic transformation, binding only leukemogenic retroviruses.
Area of Science:
- Oncology
- Virology
- Immunology
Background:
- Murine leukemic viruses (MuLV) are implicated in thymic lymphoma development.
- Understanding virus-receptor interactions is key to elucidating leukemogenesis.
Purpose of the Study:
- To develop a system for analyzing MuLV receptors on thymic lymphoma cells.
- To investigate the specificity of MuLV binding to lymphoma cells.
Main Methods:
- Utilized fluorescence-activated cell sorting (FACS) to analyze MuLV binding.
- Employed fluoresceinated and rhodaminated MuLV for binding assays.
- Performed competitive binding studies with homologous and heterologous MuLV strains.
Main Results:
- MuLV binding to thymic lymphoma cells exhibited saturation kinetics and specificity.
- Lymphoma cells preferentially bound the specific MuLV that induced them.
- Normal thymocytes showed minimal binding compared to lymphoma cells.
- Leukemogenic MuLV isolates were specifically bound, while non-leukemogenic MuLV were not.
Conclusions:
- The study demonstrates a specific receptor-ligand interaction between leukemogenic MuLV and thymic lymphoma cells.
- This interaction plays a significant role in the process of leukemic transformation.
- The developed system provides a tool for further research into retroviral leukemogenesis.
More Related Videos
08:04Development of an IFN-γ ELISpot Assay to Assess Varicella-Zoster Virus-specific Cell-mediated Immunity Following Umbilical Cord Blood Transplantation
Published on: July 9, 2014
10:01Radial Mobility and Cytotoxic Function of Retroviral Replicating Vector Transduced, Non-adherent Alloresponsive T Lymphocytes
Published on: February 11, 2015
Related Concept Videos
Mechanisms of Retrovirus-induced Cancers
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Diversity of Antigen Receptors
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...