Fig. 4: The prognostic significance of infiltrating follicular helper T cells (Tfh) and activated natural killer cells (NK) in the unirradiated tumor lesions (n = 21).

The associations of relative abundance of infiltrating Tfh and activated NK with the patient’s progression-free survival (PFS) and overall survival (OS), in the pre-SBRT (A) and post-SBRT (B) tissue samples (log-rank test). P-value < 0.05 (two-sided) was considered statistically significant without adjustment for multiplicity. Source data are provided in the Source Data file. SBRT stereotactic body radiotherapy.