• Tohoku J. Exp. Med. · Mar 2024

    Serum Cell Division Cycle 42 before and after Programmed Death-1 Inhibitor Therapy in Advanced Melanoma Patients: Correlation with Tumor Features, Clinical Response, and Survival.

    • Ling Zhang, Shenglan Zhang, Zhao Han, Zhao Liu, Yanyan Xu, Xiaojing Li, Guoying Miao, and Liang Niu.
    • Dermatology Center, Affiliated Hospital of Hebei Engineering University.
    • Tohoku J. Exp. Med. 2024 Mar 6; 262 (2): 133141133-141.

    AbstractCell division cycle 42 (CDC42) mediates immune escape in cancers. This study aimed to investigate linkages of CDC42 with tumor features, treatment response, and survival in advanced melanoma patients receiving programmed death-1 (PD-1) inhibitors. Pre-treatment and post-treatment (after 2 cycles) serum CDC42 of 35 advanced melanoma patients receiving PD-1 inhibitor was assessed by enzyme-linked immunosorbent assay. Patients with tumor-node-metastasis (TNM) stage IV (vs. III) (P = 0.050) and abnormal (vs. normal) lactate dehydrogenase (LDH) (P = 0.022) had higher pre-treatment CDC42. After 2-cycle therapy, CDC42 was declined (P < 0.001). Objective response and disease control rates were 34.3% and 62.9%, respectively. Additionally, pre-treatment and post-treatment CDC42 was reduced in patients with objective response and disease control than those without (all P < 0.050). Concerning survival, pre-treatment with CDC42 > 700 pg/mL was associated with shorter progression-free survival (PFS) (P = 0.013), but not overall survival (OS) (P = 0.060). Specifically, the 12-month PFS rate was 26.7% and 66.2%, and the 12-month OS rate was 61.1% and 82.5% in patients with pre-treatment with CDC42 > 700 pg/mL and ≤ 700 pg/mL, respectively. Post-treatment with CDC42 > 700 pg/mL was correlated with shortened PFS (P = 0.010) and OS (P = 0.006). The 12-month PFS rate was 12.5% and 62.0%, and the 12-month OS rate was 42.3% and 88.0% in patients with post-treatment with CDC42 > 700 pg/mL and ≤ 700 pg/mL, accordingly. Furthermore, post-treatment with CDC42 > 700 pg/mL was independently related to PFS [hazard ratio (HR): 2.704, P = 0.029 and OS (HR: 7.749, P = 0.005)]. Elevated CDC42 correlates with advanced TNM, abnormal LDH, worse clinical response, and dismal survival in advanced melanoma patients receiving PD-1 inhibitors.

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