CD169-positive macrophages in lymph nodes and the tumor microenvironment: harnessing their biology for clinical diagnosis and anticancer therapeutic strategies - Report - MDSpire

CD169-positive macrophages in lymph nodes and the tumor microenvironment: harnessing their biology for clinical diagnosis and anticancer therapeutic strategies

  • By

  • Ryo Fukuda

  • Yukio Fujiwara

  • Toru Maruyama

  • Yoshihiro Komohara

  • June 24, 2026

  • 0 min

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Clinical Report: Exploring the Role of CD169-Positive Macrophages in Lymph Nodes

Overview

CD169+ macrophages play critical roles in tumor progression and control within tumor-draining lymph nodes and the tumor microenvironment. Their interactions with cancer cells and immune populations are under investigation.

Background

The study of CD169+ macrophages is essential due to their involvement in immune homeostasis and cancer biology. These macrophages are found in various tissues and have been implicated in both promoting and suppressing tumor growth.

Data Highlights

No numerical data available in the source material.

Key Findings

  • CD169+ macrophages are present in both tumor-draining lymph nodes and the tumor microenvironment.
  • These macrophages are derived from embryonic precursors and postnatal hematopoietic stem cells.
  • CD169+ macrophages can influence systemic anticancer immunity through their interactions with cancer cells.
  • Higher densities of CD169+ macrophages in lymph nodes correlate with survival outcomes in various malignancies.
  • CD169 expression may serve as a biomarker in cancer treatment contexts.

Clinical Implications

Understanding the role of CD169+ macrophages can inform future research directions.

Conclusion

CD169+ macrophages are an area of research in cancer immunology.

Related Resources & Content

  1. Frontiers in Immunology, 2026 -- 25HC regulates the polarization of CD163+ macrophages in the immune microenvironment of triple-negative breast cancer through the interferon pathway
  2. Blood Cancer Journal, 2025 -- Macrophages Expressing PDL1 Infiltrate Diffuse Large B-Cell Lymphoma and Enhance Tumor Growth in a MYC-Driven Experimental Model
  3. Frontiers in Immunology, 2026 -- An IHC-derived TLS–CD8–macrophage immune niche score predicts major pathological response to neoadjuvant chemoimmunotherapy in resectable NSCLC
  4. Frontiers in Oncology, 2026 -- Spatial distribution and prognostic value of tumor-associated macrophages in head and neck squamous cell carcinomas
  5. College of American Pathologists -- Principles of Analytic Validation of Immunohistochemical Assays
  6. CD169 Expression in Lymph Nodes is Associated with Increased Infiltration of CD8+ T Cells in Tumors: A Systematic Review and Meta-Analysis - PMC
  7. The tumor-draining lymph node as a reservoir for systemic immune surveillance - PMC
  8. Principles of Analytic Validation… | College of American Pathologists
  9. CD169 Expression in Lymph Nodes is Associated with Increased Infiltration of CD8+ T Cells in Tumors: A Systematic Review and Meta-Analysis - PMC
  10. The tumor-draining lymph node as a reservoir for systemic immune surveillance - PMC

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