Applications and Technical Advantages of LAG3 Recombinant Rabbit Monoclonal Antibody in Immune Checkpoint Function Research

13 Apr 2026 by AntBio
Applications and Technical Advantages of LAG3 Recombinant Rabbit Monoclonal Antibody in Immune Checkpoint Function Research

ANT BIO PTE. LTD. Official Literature-Based Promotion Article


Literature Information


Document Theme: Applications and Technical Advantages of LAG3 Recombinant Rabbit Monoclonal Antibody in Immune Checkpoint Function Research

Core Content: Expression characteristics of LAG3 in immune cells; technical advantages of recombinant rabbit monoclonal antibody; ligand interaction mechanism of LAG3; role of LAG3 in disease pathogenesis; application value of LAG3 antibody in disease research and drug development

Research Focus: LAG3 immune checkpoint regulation; T‑cell exhaustion mechanism; tumor immune microenvironment; high‑performance LAG3 recombinant rabbit monoclonal antibody

Research Background


Immune checkpoints are critical regulatory molecules that maintain immune homeostasis and prevent autoimmunity. Lymphocyte activation gene 3 (LAG3, CD223) has emerged as a key inhibitory immune checkpoint, highly expressed on exhausted T cells in the tumor microenvironment and chronic infection contexts. Persistent high expression of LAG3, together with PD‑1, TIM‑3, and other inhibitory receptors, induces T‑cell exhaustion, suppresses anti‑tumor immune responses, and mediates tumor immune escape.

However, the lack of high‑specificity, high‑sensitivity, and batch‑stable antibodies has long restricted the progress of LAG3‑related basic research and translational applications. Traditional antibody preparation techniques cannot meet the requirements of multi‑platform compatibility and quantitative detection, resulting in poor reproducibility and high cross‑reactivity in complex immune microenvironments. Therefore, high‑quality recombinant rabbit monoclonal antibodies have become an indispensable tool for LAG3 immune checkpoint research, disease mechanism exploration, and immunotherapeutic drug development.

Research Ideas


  1. Analyze the expression characteristics of LAG3 in different immune cell subsets and clarify its cell‑type‑specific expression patterns.
  2. Verify the technical advantages of recombinant rabbit monoclonal antibody in multi‑platform detection and quantitative analysis.
  3. Explore the ligand‑medi immune regulation mechanism of LAG3 and its role in T‑cell exhaustion.
  4. Clarify the function of LAG3 in autoimmune diseases, chronic infections, and tumor diseases.
  5. Evaluate the application value of LAG3 recombinant rabbit monoclonal antibody in disease research, prognosis evaluation, and drug development.
  6. Integrate ANT BIO PTE. LTD.’s product system to provide integrated solutions for immune checkpoint research.

Research Achievements


  1. LAG3 is specifically expressed on activated T lymphocytes, Tregs, and partial dendritic cell subsets, and its sustained high expression is closely related to T‑cell exhaustion.
  2. LAG3 recombinant rabbit monoclonal antibody shows high specificity, high sensitivity, and multi‑platform adaptability, and can be stably applied to flow cytometry, IHC, IF, and WB.
  3. LAG3 regulates T‑cell activation threshold and immune response intensity through binding to MHC II, Galectin‑3, and other ligands.
  4. LAG3 participates in the occurrence and development of multiple diseases, including tumors, chronic infections, and autoimmune diseases.
  5. LAG3 recombinant rabbit monoclonal antibody provides a reliable tool for exploring disease mechanism, evaluating immunotherapy response, and developing targeted drugs.

Product Empowerment


ANT BIO PTE. LTD. provides a full set of high‑quality reagents for LAG3 immune checkpoint research through its three specialized sub‑brands:

  • Absin: Supplies general reagents, supporting buffers, and supporting kits for immune checkpoint research.
  • Starter: Provides high‑performance LAG3 recombinant rabbit monoclonal antibody and other immune checkpoint antibodies.
  • UA: Provides recombinant proteins related to LAG3 and other immune checkpoints for functional verification and drug screening.

These products effectively support the expression detection, localization analysis, functional verification, and drug development of LAG3, and strongly promote the progress of immune checkpoint basic research and translational application.

Brand Mission


ANT BIO PTE. LTD. is a professional supplier of life science reagents, focusing on providing high‑quality antibodies, recombinant proteins, general reagents, and supporting kits for life science research. Through three specialized sub‑brands: Absin, Starter, and UA, we cover a full spectrum of research needs from general reagents to antibodies and recombinant proteins, and are committed to empowering scientific breakthroughs in life science research.

Related Product List


  1. LAG3 recombinant rabbit monoclonal antibody
  2. Immune checkpoint antibody panel (LAG3, PD‑1, TIM‑3, CTLA‑4)
  3. LAG3 recombinant protein
  4. IHC/IF supporting kits
  5. Flow cytometry staining supporting reagents
  6. WB related reagents and kits


Brand Promotion Copy


ANT BIO PTE. LTD. – Empowering Scientific Breakthroughs

At ANTBIO, we are committed to advancing life science research through high-quality, reliable reagents and comprehensive solutions. Our specialized sub-brands (Absin, Starter, UA) cover a full spectrum of research needs, from general reagents and kits to antibodies and recombinant proteins. With a focus on innovation, quality, and customer-centricity, we strive to be your trusted partner in unlocking scientific mysteries and driving medical progress. Explore our product portfolio today and elevate your research to new heights
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