Progress of immune checkpoint LAG‑3 in immunotherapy (Review)

  • Authors:
    • Chanchan Shan
    • Xing Li
    • Jian Zhang
  • View Affiliations

  • Published online on: September 8, 2020     https://doi.org/10.3892/ol.2020.12070
  • Article Number: 207
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Abstract

Immune checkpoint inhibition has been shown to successfully reactivate T cell responses directed against tumor‑associated antigens, resulting in significantly prolonged overall survival in patients with various types of solid tumors. Among them, cytotoxic T‑lymphocyte protein 4 (CTLA‑4) and programmed cell death protein 1 (PD‑1) play key roles in tumor immune escape and are well‑established targets of cancer immunotherapy. However, the low response rate PD‑1 and CTLA‑4 is a limitation and a challenge. Hence, studies have focused on investigating the tumor microenvironment for alternative therapeutic targets. Lymphocyte activation gene 3 protein (LAG‑3) negatively regulates T lymphocytes by binding to the extracellular domain of the ligand, thus avoiding autoimmunity caused by T cell overactivation. LAG‑3 is an important immune checkpoint in vivo and plays a balanced regulatory role in the human immune system. LAG‑3 is now regarded as a new generation of immunotherapy targets. The present review describes the research progress of LAG‑3 to provide reference for further investigation of LAG‑3. The immune checkpoint of LAG‑3 plays a crucial role in cancer development and may be used in future clinical practice of cancer therapy.
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November-2020
Volume 20 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Shan C, Li X and Zhang J: Progress of immune checkpoint LAG‑3 in immunotherapy (Review). Oncol Lett 20: 207, 2020
APA
Shan, C., Li, X., & Zhang, J. (2020). Progress of immune checkpoint LAG‑3 in immunotherapy (Review). Oncology Letters, 20, 207. https://doi.org/10.3892/ol.2020.12070
MLA
Shan, C., Li, X., Zhang, J."Progress of immune checkpoint LAG‑3 in immunotherapy (Review)". Oncology Letters 20.5 (2020): 207.
Chicago
Shan, C., Li, X., Zhang, J."Progress of immune checkpoint LAG‑3 in immunotherapy (Review)". Oncology Letters 20, no. 5 (2020): 207. https://doi.org/10.3892/ol.2020.12070