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Objective:To improve the understanding of cervical papillary squamous cell carcinoma (PSCC), and to provide evidence for the diagnosis and treatment of PSCC.Methods:The clinicopathological and follow-up data of 18 patients diagnosed PSCC by preoperative cervical biopsy in Tangshan Gongren hospital were collected, the correlation of preoperative biopsy, liquid-based cells, and human papilloma virus (HPV) with postoperative pathology and prognosis was analyzed.Results:The concordance rate between preoperative biopsy and postoperative pathology was 50% (9/18). 4 patients showed the characteristic features of PSCC in their liquid-based cells of the 9 patients who were diagnosed as PSCC postoperatively (4/9), the HPV infection rate was 44.4% (4/9), the International Federation of Gynecology and Obstetrics stage were IA1-IB1, no lymph node metastasis, recurrence or death occurred in all patients.Conclusions:Cervical biopsy before operation has certain limitations in the diagnosis of PSCC, which requires a clear diagnosis by postoperative pathology. The HPV infection rate is lower, the stage is earlier and the prognosis is better in PSCC. Some patients can choose a less invasive surgical method than radical surgery.
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<p><b>OBJECTIVE</b>To detect plasma miR-106a level in patients with colorectal cancer (CRC) and analyze its correlation to the clinicopathological features and disease diagnosis.</p><p><b>METHODS</b>miRNA expression profiling was performed using miRNA microarray chip for 3 colorectal adenocarcinoma samples and matched normal tissues. Plasma samples was collected from 50 colorectal cancer patients for quantitative analysis of miR-106a using real-time RT-PCR using 47 plasma samples from healthy volunteer as the control. Forty plasma samples were collected from these patients 7 days after operation to examine the changes in miR-106a expression.</p><p><b>RESULTS</b>miR-106a was differentially expressed in colorectal adenocarcinoma compared to normal tissues. The plasma levels of miR-106a expression were significantly higher in the cancer patients than in the healthy control group (P=0.012). miR-106a expression significantly decreased after the operation compared with its preoperative level (P<0.01), and no correlation was found between preoperative plasma miR-106a and the clinicopathological features including lymph node metastasis and TNM stage (P>0.05). miR-106a showed a receiver operating characteristic (ROC) curve area of 66.1%, a sensitivity of 62.3%, and a specificity of 68.2% in discriminating colorectal cancer patients from the control subjects.</p><p><b>CONCLUSION</b>plasma miR-106a is up-regulated in CRC patients, suggesting its potential value for the diagnosis of CRC.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Case-Control Studies , Colorectal Neoplasms , Blood , Diagnosis , Lymphatic Metastasis , MicroRNAs , Blood , Sensitivity and Specificity , Up-RegulationABSTRACT
Background and purpose: MicroRNAs (miRNAs) play an important role in tumor biological behavior. miRNAs are down-regulated or up-regulated in various cancer types, triggering abnormal cell differentiation, proliferation and apoptosis. This study was designed to investigate the expression and clinical signiifcance of miR-187*in colorectal cancer (CRC), and further to investigate its roles in promoting cell apoptosis. Methods:The expressions of miR-187* in 40 CRC cases were examined by real-time quantitative reverse transcription-PCR (qRT-PCR). The relationship between miR-187*expression and clinical features of CRC was analyzed. HCT116 cells were transfected with a miR-187*mimic and the apoptosis of the transfected cells were examined by lfow cytometry (FCM). Results:The expression of miR-187*was down-regulated in CRC tissues 0.165 (0.106, 0.428) compared with those in normal tissues 0.334 (0.211, 0.712) (P<0.05), especially in mucinous carcinoma and older age CRC (P<0.05). Transfection of HCT116 cells with a miR-187*mimic up-regulated the expression of miR-187*and increased cell early apoptosis (P<0.05). Conclusion: The expression level of miR-187* was lower in CRC. miR-187* expression correlates with histological type and age. Transfection of HCT116 cells with a miR-187*mimic accelerates apoptosis of tumor cells, suggesting that miR-187*is a potent tumor suppressor.