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T Cell Types and Functions01:24

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Related Experiment Video

Updated: Feb 2, 2026

In Vitro Tumor Cell Rechallenge For Predictive Evaluation of Chimeric Antigen Receptor T Cell Antitumor Function
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Generation and functional evaluation of STAb-T cells.

Anaïs Jiménez-Reinoso1, Belén Blanco1, Luis Álvarez-Vallina1

  • 1Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, Madrid, Spain; Immuno-Oncology and Immunotherapy Group, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; H12O-CNIO Cancer Immunotherapy Clinical Research Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.

Methods in Cell Biology
|January 31, 2026
PubMed
Summary

Secreting T cell engager bispecific Antibodies (STAb) T cells represent a novel cancer immunotherapy. These engineered cells secrete bispecific antibodies to target tumors, showing promise in preclinical models for hematological malignancies.

Keywords:
Cancer immunotherapy, adoptive T cell therapy, bispecific antibodies, T cell engagers, STAb-T cells

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Area of Science:

  • Immunotherapy
  • Cancer Research
  • Cell Therapy

Background:

  • Adoptive cell therapies and bispecific antibodies are established cancer treatments.
  • Combining these approaches offers potential synergistic anti-tumor effects.
  • STAb-T cells are engineered to secrete bispecific T cell engagers (TCEs) for targeted cancer cell destruction.

Purpose of the Study:

  • To provide guidelines for generating STAb-T cells.
  • To outline methods for assessing STAb-T cell functionality and efficacy.
  • To establish protocols for evaluating STAb-T cells in hematological malignancy models.

Main Methods:

  • Genetic engineering of T lymphocytes to secrete TCEs.
  • In vitro assessment of STAb-T cell cytotoxicity and cytokine production.
  • In vivo efficacy studies in relevant hematological malignancy models.

Main Results:

  • Preclinical models demonstrate potent anti-tumor activity of STAb-T cells.
  • Guidelines for STAb-T cell generation and assessment are established.
  • The study provides a framework for future clinical evaluation.

Conclusions:

  • STAb-T cell therapy is a promising immunotherapy strategy.
  • Comprehensive guidelines facilitate the development and evaluation of STAb-T cells.
  • Further research and clinical trials are warranted for hematological malignancies.