Research Paper Volume 15, Issue 24 pp 14957—14984

A novel oxidative stress-related gene signature as an indicator of prognosis and immunotherapy responses in HNSCC

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Figure 6. Prognostic significance of SPINK6 protein expression in nasopharyngeal squamous cell carcinoma. (AD) Representative photomicrographs of SPINK6 protein expression by IHC magnified 200 times under a light microscope. (A) Staining intensity of SPINK6 protein was negative (0). (B) Staining intensity of SPINK6 protein was weak (1+). (C) Staining intensity of SPINK6 protein was moderate (2+). (D) Staining intensity of SPINK6 protein was strong (3+). (E) Comparison of high and low SPINK6 IHC Score groups in validation cohort. (F) KM survival curves of high and low SPINK6 IHC Score groups in validation cohort.