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Purpose To investigate the expression of polo-like kinase 1 (Plk1) and Cyclin B1, p21WAF1in cervical carcinoma, and to determine the relationship between the expression of the three proteins and tumor clinicopathological features. Methods The expres-sion of Plk1, Cyclin B1 and p21WAF1 was detected in 102 cases of cervical carcinoma, 20 cases of (cervical intraepithelial neoplasia, CIN) , and 20 cases of nomal cervical tissues by the technique of tissue chip and immunohistochemical staining of EliVision. Statistical analyses of the data were performed with SPSS 19. 0 software. Results The positive rates of Plk1 in cervical carcinoma and CIN were 70. 5%, 55. 0%, respectively, which were significantly higher than normal cervical tissues (10%) (P<0. 01);The positive rates of Cyclin B1 in cervical carcinoma and CIN were 52. 9% and 30. 0%, respectively, which were significantly higher than normal cervical tissues (10%)(P <0.01); The positive rates of p21WAF1 in cervical carcinoma and CIN were 23.5% and 10.0%, respectively, which were significantly higher than normal cervical tissues ( 0 ) ( P<0. 01 ) . There were no significant differences between cervical carcinoma and CIN in the positive rates of Plk1, Cyclin B1 and p21WAF1. The expression of Plk1 was associated with the depth of carci-noma invasion (P<0. 05), that of Cyclin B1 was associated with lymph node metastases and the depth of carcinoma invasion (P<0. 05)and that of p21WAF1 in cervical carcinoma was associated with histological grade (P<0. 05). In cervical carcinoma, the expres-sion of Plk1 was positively correlated with Cyclin B1 (rs =0. 297, P=0. 002) and negatively correlated with p21WAF1(rs = -0. 403, P<0. 001). Conclusion The expression of Plk1, Cyclin B1 and p21WAF1 is involved in the occurrence and development of cervical carcinoma, and the former two are also related with prognosis of cervical carcinoma. The combination of the three would provide a new target for clinical treatment.
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Purpose To investigate the clinicopathologic features of cervical adenoid basal cell carcinoma. Methods Clinical and pathological data were analyzed in 12 cases of cervical adenoid basal cell carcinoma and the relevant literatures were reviewed. Results The age of 12 cases of with cervical adenoid basal cell cancer patients ranged from 36~70 years ( mean:53. 3 years) , with a medi-an age of 51. 5 years. Amongst 12 patients who contained no gross definite lesion, 5 patients (41. 7%) had the symptoms of vaginal bleeding. 8 cases of patients underwent hysterectomy, while the other four received cervical conization. Cervical intraepithelial neopla-sia ( CIN) lesions were observed in all 12 cases. The tumor cells were small and uniform, with dark oval nuclei without conspicuous nucleoli and scanty cytoplasm. Tumor infiltrated into the stroma in nests and cords. Glandular differentiation within tumor nests were seen in 12 cases, including two cases of squamous cell differentiation accompanied by partial and minor interstitial edema. Peripheral palisading cells around tumor nests were also found. The infiltrating depth of tumor ranged from 0. 5~10 mm with the average 4. 12 mm. Cancer embolis were available in 2 cases with no lymph node metastasis. 10 cases followed up for 3~78 months with no recur-rence and metastasis, but 2 cases were lost. Conclusion Adenoid basal cell carcinoma is a rare uterine cervical tumor found in post-menopausal women, which are often accompanied with CIN. This tumor has a favorable prognosis and should be clearly separated from adenoid cystic carcinoma and other tumors which also have infiltrative growth pattern.
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Objective:To observe the effect of ketogenic diet on the growth of human colon cancer cells in nude mice and to de-termine its possible mechanisms. Methods:A total of 24 male BALB/C nude mice were injected subcutaneously with the tumor cells of the colon cancer cell line HCT116. These animals were randomized into two feeding groups. One group was fed with a ketogenic diet (KD group;n=12), and the other group was given a standard diet (SD group;n=12) ad libitum. Experiments were completed upon at-taining a target tumor volume of 600 mm3 to 700 mm3. The two diets were compared based on body weight, serum glucose, ketone body, insulin, tumor growth, and survival time, which is the interval between tumor cell injection and attainment of target tumor vol-ume. Results:The tumor growth was significantly more delayed in the KD group than in the SD group. Tumors in the KD and SD groups reached the target tumor volume at 33.8 ± 6.7 days and 24.8 ± 3.1 days, respectively. The ketone body in the KD group was ele-vated with a slight reduction in serum insulin, and the difference in serum glucose in the two groups was insignificant. Importantly, the KD group had significantly larger necrotic areas and less vessel density than the SD group. Conclusion:The application of an unre-stricted ketogenic diet delayed tumor growth in a mouse xenograft model. Further studies are needed to address the mechanism of this diet intervention and its effect on other tumor-relevant functions, such as invasive growth and metastasis.
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Objective To investigate the imaging features of pancreatic acinar cell carcinoma (PACC),and to assess the role of CT and MRI in the diagnosis of the disease.Methods CT and MRI data of 7 cases with PACC confirmed by surgery and pathology were reviewed retrospectively.Plan and dynamic contrast-enhanced CT were performed in 4 cases.MRI with T1 WI,T2 WI,and dy-namic contrast-enhanced series were performed in 3 cases.Results All of the PACC lesions were manifested as a single solitary mass.1 lesion was located in the pancreatic head,and the other 6 in the pancreatic body-tail.On plan CT,all of the 4 lesions ap-peared hypodense and 3 lesions had irregular more hypodense region in the lesions.On the contrast-enhanced CT,the tumor paren-chyma showed mild to moderate enhancement with non-enhanced hypodense region in the arterial phase,and lower enhancement than that of the surrounding normal pancreatic tissue in the portal and delayed phase.All of the 3 cases were heterogeneous hypointensity on T1 WI and hyperintensity on T2 WI.The manifestations of the tumors on contrast-enhanced MRI were similar with that on the contrast-enhanced CT.Dilation of the pancreatic duct was seen in 4 cases.Liver metastasis was seen in 1 case.Surrounding tissues were invaded in 4 cases.Conclusion CT and MRI can display the features of PACC and help to improve the diagnostic accuracy.
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Objective To evaluate the clinical values of acoustic radiation force impulse(ARFI) elastography for liver fibrosis on hepatopath patients.Methods ARFI elastography was prospectively performed on 99 patients prepared to undergo hepatic surgery to get a shear wave velocity(Vs) which was the representative of liver stiffness.The fibrosis stages,inflammation grades and steatosis grades were evaluated histologically after surgery.Values of Vs were compared with the histological results.Results Values of Vs with fibrosis stage 0-4 was (1.14 ± 0.22) m/s,(1.30 ± 0.22) m/s,(1.36 ± 0.38) m/s,(1.47 ± 0.37)m/s and (1.87 ± 0.08) m/s,respectively.A significant difference was observed among them (P ＜0.001).There was a certain correlation between Vs and fibrosis stage(r =0.541,P ＜0.001).Vs was a significant predictor of stage ≥3 fibrosis with an area under the ROC curve of 0.812,sensitivity 73.2％ and specificity 81.4％ when 1.40 m/s was the cutoff value (P ＜ 0.001).Values of Vs with inflammation grade 0-3 was (1.17 ± 0.16)m/s,(1.43 ± 0.36) m/s,(1.59 ± 0.53) m/s and (1.89 ± 0.59) m/s,respectively,which were significantly different (P ＜ 0.001).A certain correlation was observed between Vs and inflammation grade(r =0.383,P ＜0.001).Values of Vs with steatosis grade 0-4 was (1.61 ±0.42) m/s,(1.47±0.58) m/s,(1.56 ± 0.71)m/s,1.13 m/s and (0.94 ± 0.95) m/s.Obvious difference didn't exist between Vs and steatosis grade (P =0.286).Obvious correlation wasn't observed between them,either (r =-0.177,P =0.080).Conclusions ARFI elastography has a certain value for the evaluation of liver fibrosis,while inflammation grade may affect its performance.