[Clinical Value of p15, DAPK, SOCS1 and FHIT Genes Combined Detection in the Early Diagnosis and Prognosis Evaluation of Myelodysplastic Syndrome].

OBJECTIVE: To investigate the value of p15, DAPK, SOCS1 and FHIT genes combined detection in the early diagnosis and prognosis evaluation of patients with myelodysplastic syndrome(MDS). METHODS: The methylation-specific PCR (MSP) was used to detect the methylation of the above-mentioned 4 genes in 67 patients with MDS. The value of 4 gene combined detection in the early diagnosis and prognosis evaluation of patients with MDS was compared and anazlyzed. RESULTS: The methylation rates of p15, DAPK, SOCS1 and FHIT genes in 67 patients with MDS were 37.3%, 35.8%, 47.8% and 52.2%, respectively, which were significantly higher than those in control group (P<0.05). The accordance rates of p15, DAPK, SOCS1 and FHIT single detection for diagnosis of MDS were 37.3%,35.8%,47.8% and 52.2%, respectively, meanswhile the accordance rate of above-mentioned 4 gene combined detection for diagnosis of MDS was 82.1%, which was significantly higher than that of single gene detection(P<0.001). The methylation of ≥2 genes in relatively high risk group was significantly higher than that in relatively low risk group (P<0.05). The median survival time of MDS patients was 18(13.3, 22.7) months; the median survival time in relatively low risk group was significantly longer than that in relatively high risk group [27(20.3,33.7) months vs 9(5.9,12.1) months] (P<0.05). The survival time of MDS patients with different risks displayed the trend of shorting feature along with increasing of methylated genes (P<0.05). CONCLUSION: The combined detection of above menthioned 4 genes can improve the accuracy of early diagnosis and prognosis evaluation for MDS patients.