ABSTRACT
<p><b>OBJECTIVE</b>To investigate the relationship between six-transmembrane epithelial antigen of the prostate (STEAP) expression and the histologic grading of prostatic carcinoma (PCa).</p><p><b>METHODS</b>Different prostatic tissues and non-prostatic tumors, 131 cases of PCa, 164 cases of benign prostate hyperplasia (BPH), and 56 cases of non-prostatic malignancies, were analyzed for the expression of STEAP by using STEAP monoclonal antibody and SP immunohistochemical staining. The positive area unit (PU) was introduced to describe the intensity of STEAP expression.</p><p><b>RESULTS</b>The prostatic tissues of all but 3 cases of PCa and 5 cases of BPH were stained positively, while all of the non-prostatic tumors were stained negatively. There was a significant negative correlation between the STEAP expression and the histologic grading of PCa.</p><p><b>CONCLUSION</b>STEAP can be a prognostic marker of PCa and a potential therapeutic target in PCa.</p>
Subject(s)
Humans , Male , Antigens, Neoplasm , Genetics , Immunohistochemistry , Oxidoreductases , Prostatic Neoplasms , Diagnosis , Allergy and Immunology , PathologyABSTRACT
Objective To explore the safety and efficacy of minimally invasive percutaneous nephrolithotomy (MPCNL) for pediatric upper urinary tract calculi. Methods We retrospectively reviewed the clinical data of 35 pediatric patients with upper urinary tract stones treated by MPCNL in our hospital. The series consists of 29 boys and 6 girls with a mean age of 8.5 years (4 to 13 years). Among the 35 cases,7 children had proximal ureteral stones and 28 showed renal stones; 2 of the patients were complicated with ureteropelvic junction obstruction (UPJ). Results Totally 31 (88.6%) of the 35 cases were cured by MPCNL. The one-session success rate was 87.1% (27/31),and two-session success rate was 75% (3/4). Four patients were converted to open surgery because of UPJ-caused ureteral stenosis under the level of the calculi or failure in percutaneous renal puncture. Conclusion MPCNL is safe and effective for renal calculi and proximal ureteral calculi in children.