Tumor-Infiltrating Lymphocytes and Microvessel Density Together Predict Breast Cancer Prognosis

Breast cancer prognosis may depend not just on single tumor features but on how two key components of the tumor microenvironment act together. A new study published in Cellular Oncology reports that a combined model based on tumor-infiltrating lymphocytes (TILs) and a microvessel density-score (MVD-score) exhibited better prognostic performance, suggesting that the joint status of immune cells and blood vessels within the tumor may reflect the tumor microenvironment.

The research team, led by Jianping Huang, Junkang Li and Shengrong Du with senior authors including Liqin Zheng, Deyong Kang and Zhonghua Han, analyzed samples from 471 breast cancer patients. The researchers derived both the TILs-score and the MVD-score from 471 patients using statistical analysis based on multiphoton microscopy (MPM), an imaging technique. The study set out to explore how these two measures relate to patient prognosis, and how different types of TILs, the MVD-score and the molecular subtypes of breast cancer correlate with one another.

To evaluate prognostic value, the authors applied three complementary statistical approaches: Cox proportional hazards regression to model associations with survival, receiver operating characteristic analysis to assess predictive performance, and Kaplan-Meier survival analysis to visualize differences between patient groups.

The central finding is that the model combining TILs-score and MVD-score exhibited better prognostic performance, which the authors suggest may be sufficient to reflect the overall status of the tumor microenvironment. This supports the study’s core premise: while most previous research has focused on single biomarkers, the synergistic effects among components of the tumor microenvironment may carry prognostic information that individual markers cannot capture on their own.

The correlation analysis revealed a more nuanced picture of how these microenvironmental features interact. The MVD-score was not statistically associated with the overall TILs-score, but it was significantly associated with two specific lymphocyte categories, TILs-2 and TILs-3. In other words, the relationship between tumor blood vessels and immune infiltration depends on which lymphocyte compartment is being measured, a detail that could matter for interpreting microenvironment-based biomarkers in future studies.

Molecular subtype also emerged as an important modifier. The MVD-score was not directly correlated with breast cancer molecular subtypes, yet the association between the MVD-score and the types of TILs was modulated by molecular subtype. This indicates that the interplay between vasculature and immune infiltration is not uniform across breast cancers but varies with the biological class of the tumor, adding a layer of complexity to how such markers should be interpreted.

In their conclusion, the authors state that MVD-score and TILs-score have predictive value for breast cancer prognosis, and that their synergistic interaction within the tumor microenvironment, together with the modulatory effect of molecular subtypes, provides implications for deepening the understanding of tumor microenvironment complexity and for guiding personalized treatment.

The article is published open access and was shared on 23 September 2026 as an accepted-manuscript version, citable under a permanent DOI, with a final Version of Record to follow after further edits. Readers should therefore treat specific numerical details as potentially subject to revision. Even so, the study adds to a growing body of work arguing that the tumor microenvironment should be read as an integrated ecosystem: immune cells, blood vessels and molecular background interact, and measuring them in combination may yield a more complete prognostic picture of breast cancer than any single marker examined in isolation.

Subject of Research: The combined prognostic value of tumor-infiltrating lymphocytes and microvessel density in breast cancer

Article Title: Synergistic prognostic value of tumor-infiltrating lymphocytes and microvessel density in breast cancer

Article References: Huang, J., Li, J., Du, S., Ke, Y., Lu, Z., Luo, Y., Shi, Z., Han, X., Li, L., Chen, J., Zheng, L., Kang, D., & Han, Z. (2026). Synergistic prognostic value of tumor-infiltrating lymphocytes and microvessel density in breast cancer. Cellular Oncology. https://doi.org/10.1007/s13402-026-01296-1

Image Credits: AI Generated

DOI: 10.1007/s13402-026-01296-1

Keywords: breast cancer, tumor microenvironment, tumor-infiltrating lymphocytes, microvessel density, prognosis, multiphoton microscopy, molecular subtypes, biomarkers, Cox regression, Kaplan-Meier analysis, open access, Synergistic