Objective:To investigate the expression and significance of ADAM12 in bladder cancer.Methods:Transcriptome data and clinical data of bladder cancer and normal samples from TCGA database were downloaded to analyze the ...Objective:To investigate the expression and significance of ADAM12 in bladder cancer.Methods:Transcriptome data and clinical data of bladder cancer and normal samples from TCGA database were downloaded to analyze the expression level and prognosis of ADAM12 in bladder cancer and normal tissues,and analyze its clinical correlation.Bladder cancer wax block samples were collected to detect the expression level of ADAM12 protein in cancer and adjacent cancer by immunohisto-chemistry.In vitro experiments,the experiments were divided into siNC group and siADAM12 group by transfection interference sequence,and the effect of knockdown ADAM12 on the proliferation and migration of bladder cancer cells was evaluated by CCK8,Transwell and scratch experiments.Western Blot was used to detect the expression level of EMT-related protein in each group of bladder cancer cells.Bioinformatics was used to explore the potential mechanism of ADAM12 in influencing the progression of bladder cancer.Results:ADAM12 expression in bladder cancer tissue is higher than normal tissue(P<0.05).Compared with the low expression group,the prognosis of high-expression ADAM12 was worse(P=0.007),and it was related to tumor stage,depth of invasion and lymph node metastasis(P<0.05).The immunohistochemical results showed that ADAM12 was expressed higher in bladder cancer tissues than in neighboring tissues(P<0.05).The results of in vitro experiments showed that knocking down ADAM12 could inhibit the proliferation and migration of bladder cancer cells compared with the control group.Compared with the NC group,the Western Blot test results showed that the expression of E-cadherin was increased in the siADAM12 group,while the expression of N-cadherin and Vimentin was decreased.Overexpression leads to the opposite.Bioinformatics analysis showed that ADAM12 may be involved in multiple cancer-related signaling pathways and is associated with the infiltration of various immune cell(P<0.05).Conclusion:ADAM12 is highly expressed in bladder cancer tissues and is associated with tumor immune cell infiltration and promotes the migration of bladder cancer cells by regulating EMT,which may be a prognostic marker and biotherapeutic target for bladder cancer.展开更多
Objective: The role of ureteroscopy in the diagnosis of upper tract urothelial carcinoma is yet to be fully determined. We aimed to provide an up to date evaluation of its role and the emerging technologies in the fie...Objective: The role of ureteroscopy in the diagnosis of upper tract urothelial carcinoma is yet to be fully determined. We aimed to provide an up to date evaluation of its role and the emerging technologies in the field.Methods: A literature search of the last two decades (from 24th May, 2001 to 24th May, 2021) was carried out identifying 147 papers for potential inclusion within this narrative review.Results: Diagnostic ureteroscopy is undeniably useful in its ability to visualise and biopsy indeterminate lesions, and to risk stratify malignant lesions that may be suitable for kidney sparing surgery. However, an increased risk of intravesical recurrence following nephroureterectomy when a prior diagnostic ureteroscopy has been performed, inadequate sampling at biopsy, complications from the procedure, and difficult ureteric access are all potential drawbacks. Furthermore, whilst generally an accurate diagnostic procedure, it risks missing carcinoma in-situ lesions. Despite this, evidence shows that routine use of ureteroscopy changes the management of patients in a large proportion of cases, preventing unnecessary surgery or facilitating kidney sparing surgery. The overall rate of complications is low, and improved biopsy techniques and the use of tissue biomarkers for improved staging and grading are encouraging. The risks of delays to definitive management and post-ureteroscopy intravesical recurrence do not seem to affect survival, and trials are in progress to determine whether intravesical therapy can mitigate the latter. Further promising techniques are being investigated to improve shortcomings, particularly in relation to improved diagnosis of carcinoma in situ and preoperative staging.Conclusion: Ureteroscopy has a role in the diagnosis of upper tract malignancy, though whether it should be used routinely is yet to be determined.展开更多
基金Natural Science Foundation of Anhui Province(No.1808085MH293)。
文摘Objective:To investigate the expression and significance of ADAM12 in bladder cancer.Methods:Transcriptome data and clinical data of bladder cancer and normal samples from TCGA database were downloaded to analyze the expression level and prognosis of ADAM12 in bladder cancer and normal tissues,and analyze its clinical correlation.Bladder cancer wax block samples were collected to detect the expression level of ADAM12 protein in cancer and adjacent cancer by immunohisto-chemistry.In vitro experiments,the experiments were divided into siNC group and siADAM12 group by transfection interference sequence,and the effect of knockdown ADAM12 on the proliferation and migration of bladder cancer cells was evaluated by CCK8,Transwell and scratch experiments.Western Blot was used to detect the expression level of EMT-related protein in each group of bladder cancer cells.Bioinformatics was used to explore the potential mechanism of ADAM12 in influencing the progression of bladder cancer.Results:ADAM12 expression in bladder cancer tissue is higher than normal tissue(P<0.05).Compared with the low expression group,the prognosis of high-expression ADAM12 was worse(P=0.007),and it was related to tumor stage,depth of invasion and lymph node metastasis(P<0.05).The immunohistochemical results showed that ADAM12 was expressed higher in bladder cancer tissues than in neighboring tissues(P<0.05).The results of in vitro experiments showed that knocking down ADAM12 could inhibit the proliferation and migration of bladder cancer cells compared with the control group.Compared with the NC group,the Western Blot test results showed that the expression of E-cadherin was increased in the siADAM12 group,while the expression of N-cadherin and Vimentin was decreased.Overexpression leads to the opposite.Bioinformatics analysis showed that ADAM12 may be involved in multiple cancer-related signaling pathways and is associated with the infiltration of various immune cell(P<0.05).Conclusion:ADAM12 is highly expressed in bladder cancer tissues and is associated with tumor immune cell infiltration and promotes the migration of bladder cancer cells by regulating EMT,which may be a prognostic marker and biotherapeutic target for bladder cancer.
文摘Objective: The role of ureteroscopy in the diagnosis of upper tract urothelial carcinoma is yet to be fully determined. We aimed to provide an up to date evaluation of its role and the emerging technologies in the field.Methods: A literature search of the last two decades (from 24th May, 2001 to 24th May, 2021) was carried out identifying 147 papers for potential inclusion within this narrative review.Results: Diagnostic ureteroscopy is undeniably useful in its ability to visualise and biopsy indeterminate lesions, and to risk stratify malignant lesions that may be suitable for kidney sparing surgery. However, an increased risk of intravesical recurrence following nephroureterectomy when a prior diagnostic ureteroscopy has been performed, inadequate sampling at biopsy, complications from the procedure, and difficult ureteric access are all potential drawbacks. Furthermore, whilst generally an accurate diagnostic procedure, it risks missing carcinoma in-situ lesions. Despite this, evidence shows that routine use of ureteroscopy changes the management of patients in a large proportion of cases, preventing unnecessary surgery or facilitating kidney sparing surgery. The overall rate of complications is low, and improved biopsy techniques and the use of tissue biomarkers for improved staging and grading are encouraging. The risks of delays to definitive management and post-ureteroscopy intravesical recurrence do not seem to affect survival, and trials are in progress to determine whether intravesical therapy can mitigate the latter. Further promising techniques are being investigated to improve shortcomings, particularly in relation to improved diagnosis of carcinoma in situ and preoperative staging.Conclusion: Ureteroscopy has a role in the diagnosis of upper tract malignancy, though whether it should be used routinely is yet to be determined.
