Carcinogenesis, Teratogenesis & Mutagenesis ›› 2024, Vol. 36 ›› Issue (6): 463-469.doi: 10.3969/j.issn.1004-616x.2024.06.007

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Clinical value of CST4 in auxiliary diagnosis and prognosis assessment of pancreatic cancer

GUO Xujuan1, JIA Yuming2, YAN Xi1, ZHAO Hongzheng1, GUO Yiyang1, ZHANG Jinyan1   

  1. 1. Clinical Laboratory, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011;
    2. Hepatobiliary Surgery, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
  • Received:2024-01-15 Revised:2024-06-20 Published:2024-12-04

Abstract: OBJECTIVE: To evaluate the value of serum cystatin 4 (CST4) levels in the clinical diagnosis and prognosis evaluation of pancreatic cancer. METHODS: From October 2020 to January 2023,71 newly diagnosed pancreatic cancer patients who were treated in the Fourth Hospital of Hebei Medical University were selected for our study,and their clinical indicators including blood routine,coagulation function,blood biochemistry,and serum tumor markers were collected. Differences in CST4 and other clinical laboratory test results between these patients and patients with benign pancreatic tumors were analyzed. Receiver operating curve (ROC) analysis were performed to evaluate the significance of CST4 in the diagnosis and clinical progression assessment of pancreatic cancer. Kaplan-Meier survival curves were constructed,and multivariate Cox regression analysis was conducted to evaluate the value of CST4 in the clinical prognosis assessment of pancreatic cancer compared with traditional tumor markers:carcinoembryonic antigen (CEA) and carbohydrate antigen 199 (CA19-9). RESULTS: Compared with the benign tumors group,the proportions and median values of serum CST4,CA19-9,and CEA levels in pancreatic cancer patients were significantly increased (P<0.01). ROC analysis showed that the area under the curve (AUC) of CST4 in the diagnosis of pancreatic cancer was 0.782,and the AUC of CST4 combined with CEA and CA19-9 was significantly higher than that of single detection (AUC=0.930) (P<0.05). CST4 showed higher value in predicting the clinical progression of pancreatic cancer (AUC=0.794),with a sensitivity of 80.90%,specificity of 70.80%,positive likelihood ratio of 2.77,and an optimal cutoff value of 84.41 U/mL. Prognostic analysis showed that the median survival times of high CST4 group and low CST4 group patients were significantly different at 6.2 months and 25.6 months (P<0.01). Elevated serum CST4 level was identified as an independent risk factor for the prognosis of pancreatic cancer (P<0.05). CONCLUSION: Our data show that serum CST4 level can be used as a clinical auxiliary diagnostic indicator for pancreatic cancer and as an independent risk factor for the prognosis of pancreatic cancer.

Key words: pancreatic cancer, cystatin 4, serum tumor markers, prognosis

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