Abstract
In this prospective observational study, our objective was to investigate the serum levels of Acyl-CoA synthetase long-chain family member 4 (ACSL4) in prostate cancer (PCa) patients and examine its association with other serum biomarkers, and the clinical outcomes of PCa patients. This prospective observational study was conducted from January 2019 to October 2021, including 103 cases of PCa patients and 101 cases of benign prostate hyperplasia (BPH) patients who received treatment at our hospital. All patients had their serum ACSL4 levels measured using enzyme-linked immunosorbent assay before treatment. The clinical outcomes included age, body mass index, gender, systolic blood pressure, diastolic blood pressure, tumor node metastasis stage, Gleason scores, and prostate volume and serum biomarkers were collected. All patients were followed up for 36 months, the overall survival and disease-free survival were recorded for all patients. All data used SPSS 26.0 for analysis. The phosphorus (P) and serum low-density lipoprotein cholesterol levels were significantly higher in PCa patients compared to BPH patients. Furthermore, compared to the BPH patients, the serum ACSL4 and free prostate-specific antigen levels were significantly decreased while serum total prostate-specific antigen (tPSA) levels were significantly elevated in PCa patients. Pearson correlation analysis showed a positive correlation between ACSL4 levels and free prostate-specific antigen levels, while a negative correlation was observed with P and tPSA levels. ACSL4 might serve as a biomarker for diagnosing PCa with the AUC was 0.747, cutoff value of 33.68 ng/mL, sensitivity of 70.3%, and specificity of 60.2%. Finally, we found that ACSL4, tPSA, and P were identified as risk factors associated with PCa patients. Our findings indicated that the serum levels of ACSL4 were significantly decreased in PCa patients compared to BPH patients. Serum ACSL4 could be used as a potential biomarker for early PCa diagnosis and prognosis.
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