Th1 Cells

Th1 cells are a subset of CD4+ T helper lymphocytes that coordinate cell-mediated immunity, particularly against intracellular pathogens, and help shape inflammatory responses. After antigen presentation, signals such as interleukin-12 promote activation of the transcription factor T-bet, driving Th1 differentiation and production of interferon-γ, which activates macrophages and supports cytotoxic immune functions. Studying Th1 cells helps explain host defense against infections and the immune mechanisms underlying conditions such as autoimmune disease. Their cytokine pathways also inform vaccine design, immune monitoring, and therapies that modulate inflammation.

Th1 Cells - Related Videos

Research

JoVE Journal - Immunology and Infection

An In Vivo Mouse Model to Measure Naïve CD4 T Cell Activation, Proliferation and Th1 Differentiation Induced by Bone Marrow-derived Dendritic Cells

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Cited by 5 •

2018

Here, we present a protocol for the in vivo determination of naïve CD4 T cell (T cell) activation, proliferation, and Th1 differentiation induced by GM-CSF bone marrow (BM)-derived dendritic cells (DCs). In addition, this protocol describes BM and T-cell isolation, DC generation, and DC and T-cell adoptive transfer.

Murine Lymphocyte Labeling by 64Cu-Antibody Receptor Targeting for In Vivo Cell Trafficking by PET/CT

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Cited by 3 •

2017

Following the preparation of a 64Cu-modified monoclonal antibody binding to a transgenic murine T cell receptor, T cells are radiolabeled in vivo, analyzed for viability, functionality, labeling stability and apoptosis, and adoptively transferred into mice with an airway delayed-type hypersensitivity reaction for non-invasive imaging by positron emission tomography/computed tomography (PET/CT).

Labeling Murine T Helper Lymphocytes using Radiolabeled Monoclonal Antibodies

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2025

In this video, we demonstrate the intracellular radiolabeling of T helper cells using radioactive isotope-conjugated monoclonal antibodies for non-invasive positron emission tomography imaging.

Research

JoVE Journal - Cancer Research
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Tractable In Vivo Reprogramming of Tumor Cells to Type 1 Conventional Dendritic Cell-like Cells

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2025

This protocol describes the in vivo reprogramming of mouse cancer cells into type 1 dendritic-like cells within the tumor microenvironment through enforced expression of the transcription factors PU.1, IRF8, and BATF3.

Induction of Paralysis and Visual System Injury in Mice by T Cells Specific for Neuromyelitis Optica Autoantigen Aquaporin-4

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Cited by 10 •

2017

Here, we present a protocol to induce paralysis and opticospinal inflammation by transfer of aquaporin-4 (AQP4)-specific T cells from AQP4-/- mice into WT mice. In addition, we demonstrate how to use serial optical coherence tomography to monitor visual system dysfunction.

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