Journal of International Oncology ›› 2025, Vol. 52 ›› Issue (11): 695-699.doi: 10.3760/cma.j.cn371439-20250123-00119

• Original article • Previous Articles     Next Articles

Diagnostic value of MRI combined with serum LRG1 and LOXL2 for prostate cancer

Ye Rui, Chen Zhen(), Hao Ningning, Li Rongrong   

  1. Department of Radiology Diagnosis, 900th Hospital of PLA Joint Logistic Support Force, Fuzhou 350003, China
  • Received:2025-01-23 Revised:2025-09-19 Online:2025-11-08 Published:2025-12-21
  • Contact: Chen Zhen E-mail:ipy17e@163.com

Abstract:

Objective To explore the diagnostic value of MRI combined with serum levels of leucine-rich α2 glycoprotein 1 (LRG1) and lysyl oxidase like-2 protein (LOXL2) for prostate cancer. Methods A total of 84 patients with prostate cancer who were treated at the 900th Hospital of PLA Joint Logistic Support Force from January 2021 to December 2023 were selected as the research subjects (prostate cancer group). Meanwhile, 59 patients diagnosed with benign prostate lesions by pathology during the same period were selected as the control group. All subjects underwent multiparametric MRI examination. The levels of serum LRG1 and LOXL2 in the two groups of patients were determined by enzyme linked immunosorbent assay (ELISA). Receiver operator characteristic (ROC) curve was used to analyze the diagnostic value of MRI, levels of serum LRG1, LOXL2 and prostate specific antigen (PSA) for prostate cancer. Results The volume transfer constant (Ktrans) of the control group and the prostate cancer group were (0.09±0.03) and (0.13±0.04)/min, respectively, the rate constant (Kep) were (0.48±0.11) and (0.53±0.12)/min, respectively, and the apparent diffusion coefficient (ADC) were (1.16±0.15)×10-3 and (0.92±0.13)×10-3 mm2/s, respectively, with statistically significant differences (t=6.50, P<0.001; t=2.54, P=0.012; t=10.20, P<0.001). The serum LRG1 levels of the prostate cancer group and the control group were (115.48±15.61) and (92.51±14.34) ng/ml, respectively, the LOXL2 levels were (6.79±1.15) and (5.21±0.93) ng/ml, respectively, and the PSA levels were 16.05 (12.23, 22.89) and 6.04 (2.62, 12.04) ng/ml, respectively, with statistically significant differences (t=8.96,P<0.001; t=8.73, P<0.001; Z=7.02, P<0.001). ROC curve analysis showed that, the area under the curve (AUC) of MRI, serum LRG1, LOXL2 and PSA levels in the diagnosis of prostate cancer were 0.826, 0.844, 0.829, and 0.845, respectively. The AUC of the combined diagnosis of prostate cancer by MRI, serum levels of LRG1 and LOXL2 was 0.929, and the combined diagnostic efficacy was better than that of MRI (Z=4.51, P<0.001), serum LRG1 (Z=3.65, P<0.001), LOXL2 (Z=3.91, P<0.001), and PSA (Z=2.30, P=0.022) alone. Conclusions MRI combined with the levels of serum LRG1 and LOXL2 has a relatively high diagnostic efficacy for prostate cancer.

Key words: Prostatic neoplasms, MRI, Diagnosis, Leucine-rich α2 glycoprotein 1, Lysyl oxidase like-2 protein