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Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
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Related Experiment Video

Updated: May 12, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
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High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes

Published on: March 24, 2015

Low-Strength Type I Interferon Signaling Promotes CAR T Cell Treatment Efficacy.

Erting Tang1, Yifei Hu1, Guoshuai Cao1

  • 1University of Chicago Chicago, IL United States.

Cancer Immunology Research
|May 11, 2026
PubMed
Summary

Type I interferon (IFN-I) signaling enhances chimeric antigen receptor (CAR) T-cell therapy for lymphoma. Ex vivo IFN-I treatment boosts CAR T-cell efficacy without causing in vivo toxicities, improving patient outcomes.

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Generation of CAR T Cells for Adoptive Therapy in the Context of Glioblastoma Standard of Care

Published on: February 16, 2015

Area of Science:

  • Immunotherapy
  • Oncology
  • Cellular Therapy

Background:

  • Chimeric antigen receptor (CAR) T-cell therapy shows promise for relapsed/refractory diffuse large B-cell lymphoma (r/r DLBCL).
  • However, a significant proportion of patients do not achieve complete response, necessitating strategies to improve therapeutic efficacy.
  • Understanding the factors influencing CAR T-cell response is crucial for optimizing treatment outcomes.

Purpose of the Study:

  • To identify determinants of therapeutic efficacy in CD19-directed CAR T-cell therapy for r/r DLBCL.
  • To develop a novel strategy to enhance CAR T-cell efficacy by modulating type I interferon (IFN-I) signaling during manufacturing.
  • To evaluate the impact of ex vivo IFN-I enhancement on CAR T-cell function and anti-tumor activity.

Main Methods:

  • Single-cell transcriptomics analysis of CAR T-cell infusion products from r/r DLBCL patients with varying clinical responses.
  • Ex vivo manufacturing of CAR T-cells with incorporation of low-strength IFN-I signaling.
  • Assessment of IFN-I enhanced CAR T-cell cytotoxicity and efficacy against B-cell lymphoma and leukemia models.

Main Results:

  • Complete responders exhibited enriched type I interferon (IFN-I) signaling signatures in their CAR T-cell infusion products compared to progressive disease patients.
  • Ex vivo low-strength IFN-I signaling enhanced the cytotoxicity and efficacy of both CD28- and 4-1BB-costimulated CAR T-cells.
  • The IFN-I enhancement strategy is compatible with current CAR constructs and manufacturing workflows, and avoids in vivo toxicities.

Conclusions:

  • Type I interferon (IFN-I) is a potent, costimulation-independent enhancer of CAR T-cell efficacy.
  • Ex vivo manufacturing incorporating IFN-I presents a translationally feasible approach to improve CAR T-cell therapy for B-cell malignancies.
  • This strategy offers a potential method to overcome non-response and enhance treatment outcomes in patients with r/r DLBCL.