Memory T Cells: Investigation of Original Models with Transgenic T Cell Receptors

Area of Science:

• Immunology
• Molecular Biology
• Oncology

Background:

• Research on T cell receptor (TCR) function is crucial for understanding immune responses.
• Mouse models are essential tools for studying T lymphocyte homeostasis and activation.
• The laboratory of regulatory mechanisms in immunity has developed novel transgenic mouse models.

Purpose of the Study:

• To summarize research data on original mouse models for studying T lymphocyte homeostasis and activation.
• To investigate new features of immune selection and tumor progression using these models.
• To explore the potential of TCR properties for therapeutic applications.

Main Methods:

• Gene transfer of T cell receptor (TCR) α- and β-chains into mice to create transgenic lines.
• Investigation of immune selection and tumor progression in developed transgenic models.
• Analysis of TCR "chain-centricity" and its implications for T cell recognition.

Main Results:

• Transgenic mouse models were successfully produced, aiding the study of T lymphocyte homeostasis and activation markers.
• The property of TCR "chain-centricity" was confirmed, highlighting the dominance of one TCR chain in MHC/peptide complex recognition.
• Engineered T cells with specific TCRs demonstrated potential for adoptive immunotherapy and innate immunological resistance.

Conclusions:

• TCR structure and specificity play an instructive role in T cell function and phenotype, independent of prior antigen exposure.
• "Chain-centricity" offers a method to generate large pools of immunocompetent T cells for therapeutic use.
• Transgenic models provide valuable insights into immune selection, tumor progression, and the development of targeted immunotherapies.