1.Clinical utility of real-time fluorescent PCR for combined detection of anaplastic lymphoma kinase and c-ros oncogene 1 receptor tyrosine kinase in non-small cell lung cancer
Dongyu BAI ; Haiping ZHANG ; Shan ZHONG ; Wenhao SUO ; Dehong GAO ; Yi DING ; Jinhua TU
Chinese Journal of Oncology 2016;38(12):898-903
Objective To investigate the clinical application value of combined detection of ALK fusion gene and c?ros oncogene 1 receptor tyrosine kinase ( ROS1) fusion gene in non?small cell lung cancer ( NSCLC) using real?time fluorescent PCR. Methods A kit for combined detection of ALK fusion gene and ROS1 fusion gene based on fluorescent PCR was used to simultaneously detect the two fusion genes in 302 cases of NSCLC specimens. The results were validated through Sanger sequencing. The consistency of the two detection methods was analyzed. Results All 302 cases of NSCLC specimens were successfully analyzed through fluorescent PCR (302/302). 12 cases (4.0%) were found to contain ALK fusion gene, including 3 cases with ALK?M1, 3 with ALK?M2, 3 with ALK?M3, 1 with ALK?M4, and 2 with ALK?M6 fusion gene. 12 cases (4.0%) were found to contain ROS1 fusion gene, including 1 case with ROS1?M7, 8 cases with ROS1?M8,1 case with ROS1?M12,1 case with ROS1?M14,and 1 case with double?positive ROS1?M3 and ROS1?M8 fusion genes. The total detection rate of ALK fusion gene and ROS1 fusion gene was 7. 9%(24/302) and 278 cases showed to be negative for ALK fusion gene and ROS1 fusion gene. The successful detection rates for Sanger DNA sequencing were also 100%. The positive, negative and total coincidence rates obtained by real?time fluorescent PCR and by Sanger DNA sequencing were all 100%. Conclusions The results of Sanger DNA sequencing demonstrate that the real?time fluorescent PCR assay is equally effective in detecting ALK and ROS1 fusion genes in NSCLC tissues. Furthermore, real?time fluorescent PCR assay can be used to detect trace ALK and ROS1 fusion gene simultaneously in tiny samples, and can save time and avoid repeated sampling. It is worthy of recommendation as a rapid and reliable detection technique.
2.Clinical utility of real-time fluorescent PCR for combined detection of anaplastic lymphoma kinase and c-ros oncogene 1 receptor tyrosine kinase in non-small cell lung cancer
Dongyu BAI ; Haiping ZHANG ; Shan ZHONG ; Wenhao SUO ; Dehong GAO ; Yi DING ; Jinhua TU
Chinese Journal of Oncology 2016;38(12):898-903
Objective To investigate the clinical application value of combined detection of ALK fusion gene and c?ros oncogene 1 receptor tyrosine kinase ( ROS1) fusion gene in non?small cell lung cancer ( NSCLC) using real?time fluorescent PCR. Methods A kit for combined detection of ALK fusion gene and ROS1 fusion gene based on fluorescent PCR was used to simultaneously detect the two fusion genes in 302 cases of NSCLC specimens. The results were validated through Sanger sequencing. The consistency of the two detection methods was analyzed. Results All 302 cases of NSCLC specimens were successfully analyzed through fluorescent PCR (302/302). 12 cases (4.0%) were found to contain ALK fusion gene, including 3 cases with ALK?M1, 3 with ALK?M2, 3 with ALK?M3, 1 with ALK?M4, and 2 with ALK?M6 fusion gene. 12 cases (4.0%) were found to contain ROS1 fusion gene, including 1 case with ROS1?M7, 8 cases with ROS1?M8,1 case with ROS1?M12,1 case with ROS1?M14,and 1 case with double?positive ROS1?M3 and ROS1?M8 fusion genes. The total detection rate of ALK fusion gene and ROS1 fusion gene was 7. 9%(24/302) and 278 cases showed to be negative for ALK fusion gene and ROS1 fusion gene. The successful detection rates for Sanger DNA sequencing were also 100%. The positive, negative and total coincidence rates obtained by real?time fluorescent PCR and by Sanger DNA sequencing were all 100%. Conclusions The results of Sanger DNA sequencing demonstrate that the real?time fluorescent PCR assay is equally effective in detecting ALK and ROS1 fusion genes in NSCLC tissues. Furthermore, real?time fluorescent PCR assay can be used to detect trace ALK and ROS1 fusion gene simultaneously in tiny samples, and can save time and avoid repeated sampling. It is worthy of recommendation as a rapid and reliable detection technique.
3.Inflammatory cells infiltration status in bladder submucosa of patients with cystitis glandularis and its clinical significance
Yuedong CHEN ; Yankai ZENG ; Peide BAI ; Fei LIU ; Wenhao SUO ; Dongyu BAI ; Yongqiang LIAO ; Jinchun XING
Chinese Journal of Urology 2018;39(8):569-572
Objective To analyze the infiltration of inflammatory cells under the mucosa of female cystitis glandularis and the different inflammatory infiltration in different clinical pathological types of cystitis glandularis.Methods Immunohistochemical method was used to detect the bladder mucosal tissue samples of 10 female patients confirmed cystitis glandularis admitted from June 2016 to October 2016.The results of immunohistochemical staining were collected and statistically analyzed by the automatic microscopy and image analysis system.In addition,the clinical data and tissue sample of 49 cases of cystitis glandularis treated from December 2006 to August 2017 were collected.Age of 49 patients was (34.4 ±7.5) years old and BMI was (21.9 ± 4.2) kg/m2.There were 19 cases of hypertension and 18 cases of diabetes.According to the cystoscopic manifestations,follicular edema type,papilloma type,and intestinal adenomatosis type were defined as high risk.Chronic inflammatory type and mucosa unchanged type were defined as low risk.Immunohistochemical staining was used to detect tissue samples,to compare the general data of different types of cystitis glandularis and the degree of infiltration of bladder mucosal inflammatory cells.Results T lymphocytes were highly expressed in 10 patients,and B lymphocytes and plasma cells were not expressed or extremely low (P < 0.01).Of the 49 patients,29 were high risk type cystitis glandularis (follicular edema type,papilloma type,and intestinal adenomatosis type),and 21 were low risk type (chronic inflammatory type and mucosa unchanged type).The age of the high-risk group was (34.4 ± 7.5) years old with BMI of (21.9 ±4.2) kg/m2,8 cases of hypertension and 8 cases of diabetes.The age of the low-risk group was (38.2 ±8.5) years old with BMI of (20.8 ±4.0) kg/m2,11 cases of hypertension and 10 cases of diabetes.There was no statistically significant difference between two groups (P > 0.05).The OABSS of high-risk group(10.4 ± 2.6) was significantly higher than that of low-risk group (7.1 ± 2.1,P < 0.01).QOL of high-risk group (4.9 ± 0.9) was significantly higher than that of low-risk group (4.1 ± 0.8,P < 0.01).Qmax of high-risk group was (11.4 ± 3.6) ml/s,significantly lower than that of low-risk group[(15.8 ±3.8) ml/s,P <0.01].The positive number of T lymphocytes of high-risk group was (173.5 ± 26.8),which was significantly higher than that of low-risk group(119.5 ± 21.2,P < 0.01).Conclusions T lymphocytes infiltration is the major phenomenon in bladder submucosa of female patients with cystitis glandularis.The inflammatory infiltration by T lymphocytes could be associated with patient's symptom and bladder's pathological changes.