Differential infiltration of CD4+ and CD8+ T cells and expression of PD-L1 in paired biopsy and resection specimens of gastric and colorectal adenocarcinomas - Scorecard - MDSpire

Differential infiltration of CD4+ and CD8+ T cells and expression of PD-L1 in paired biopsy and resection specimens of gastric and colorectal adenocarcinomas

  • By

  • Wang, Zi-xuan

  • Zhang, Chun-mei

  • Liu, Yao-zhen

  • Zhang, Yu-wei

  • Tong, Shi-jie

  • Liu, Qi

  • Deng, Duo

  • Pan, Yun

  • June 22, 2026

  • 0 min

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Clinical Scorecard: Comparative Analysis of CD4+ and CD8+ T Cell Infiltration and PD-L1 Expression in Biopsy Versus Resection Samples of Gastric and Colorectal Adenocarcinomas

At a Glance

CategoryDetail
ConditionGastric and Colorectal Adenocarcinomas
Key MechanismsCD4+ T cell and CD8+ T cell infiltration, PD-L1 expression
Target PopulationPatients with gastric and colorectal adenocarcinomas
Care SettingOncology

Key Highlights

  • Higher CD4+ and CD8+ T cell density and PD-L1 expression in resection specimens compared to biopsies in gastric adenocarcinoma.
  • In colorectal adenocarcinoma, only CD8+ T cell density was significantly higher in resection specimens.
  • CD4+ T cells negatively correlated with Ki-67 in colorectal adenocarcinoma.
  • Preoperative neutrophil-to-lymphocyte ratio positively correlated with tumor diameter in both cancers.

Guideline-Based Recommendations

Diagnosis

  • Assess CD4+ and CD8+ T cell density and PD-L1 expression in resection specimens.

Management

  • Consider tumor-type-specific immune assessment of biopsies.

Monitoring & Follow-up

  • Monitor correlations between immune cell infiltration and tumor markers.

Risks

  • Biopsy specimens may not accurately reflect the immune microenvironment.

Patient & Prescribing Data

Patients undergoing treatment for gastric and colorectal adenocarcinomas.

Clinical Best Practices

  • Utilize resection specimens for more accurate immune profiling.
  • Evaluate immune cell ratios at tumor center and invasive margin.

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