Systemic Immune Cell Profiles in Spine Surgery Patients With and Without Infections

A 2026 study by Pia Fehrenbach compares immune cell profiles in 17 patients with surgical site infections after spine surgery against 20 matched control patients without infections. Peripheral blood mononuclear cells were analyzed using high-dimensional mass cytometry, identifying 46 immune cell clusters. The research reveals significant differences in 30 clusters, including decreased natural killer cells and increased activated T-cell subsets in infected patients.

Use Cases

• Identify diagnostic immune biomarkers for surgical site infections based on the described differences in natural killer cell and T-cell counts.
• Train classifiers to differentiate infected from non-infected patients based on the 30 significantly altered immune cell clusters.
• Investigate the role of Th17 and HLA-DR+ CD4+ T cells in post-surgical infection pathology as highlighted in the results.
• Validate mass cytometry analysis pipelines for clinical immunology using the described high-dimensional immune cell data.

Strengths

• Data is from a controlled clinical study with matched patient groups (17 infected, 20 non-infected) for age, BMI, and surgical invasiveness.
• Analysis identified 46 distinct immune cell clusters via mass cytometry, with 30 showing statistically significant differences between groups.
• Specific immune cell changes are reported with p-values (e.g., natural killer cells p=0.0269), providing concrete findings.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is small (2.4 MB), suggesting a limited sample size.

Provenance

Source

Pia Fehrenbach via figshare

Collection Method

Peripheral blood mononuclear cells were collected post-surgery from patients and analyzed via high-dimensional mass cytometry.

Freshness

Last updated 2026-05-26 04:36:55; freshness should be verified.