Related Experiment Video
Updated: Dec 8, 2025

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function
Published on: October 15, 2013
Immune Checkpoints in Viral Infections.
Huiming Cai1,2, Ge Liu1,2, Jianfeng Zhong1,2
1Guangdong Key Laboratory for Genome Stability & Human Disease Prevention, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen 518060, China.
Viral infections exploit immune checkpoints, similar to cancer. Immune checkpoint blockade therapy, successful in cancer, shows potential for treating chronic viral infections like COVID-19.
Area of Science:
- Immunology
- Virology
- Oncology
Background:
- Virus-infected cells, including cancer cells, suppress T-cell function through immune checkpoints.
- Viral infections utilize immune checkpoints as a mechanism to evade the host immune system.
Purpose of the Study:
- To review recent findings on immune checkpoints in viral infections.
- To discuss the role of immune checkpoints in various viral infections.
- To explore the potential of immune checkpoint blockade as antiviral therapy.
Main Methods:
- Literature review of recent studies on immune checkpoints and viral infections.
- Analysis of the role of immune checkpoints in viral pathogenesis.
- Discussion of the therapeutic implications of immune checkpoint blockade.
Main Results:
- Immune checkpoints play a significant role in viral infections, similar to their role in cancer.
- Chronic viral infections, such as COVID-19, exhibit immune checkpoint dysregulation.
- Evidence suggests immune checkpoint blockade could be a viable antiviral strategy.
Conclusions:
- Immune checkpoint blockade represents a promising therapeutic avenue for viral infections.
- Further research is warranted to translate immune checkpoint blockade into clinical antiviral treatments.
- Understanding immune checkpoint mechanisms is crucial for developing novel antiviral therapies.
More Related Videos
Related Concept Videos
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...
Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
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...
Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Cell-mediated Immune Responses
Mechanisms of Retrovirus-induced Cancers

