产品货号Reference:              CAN-TPSA-4300
检测方法Kit Type:                 Sandwich ELISA
规格Kit Size:                         96-well break-apart microplate
灵敏度Sensitivity:                 0.1 ng/mL
检测样本Sample Type:         Human serum / 25 μL
校准范围Calibrator Range:  0.5–100 ng/mL
检测时间Total Assay Time: 105 minutes

背景介绍：
前列腺特异性抗原(PSA)是一种由前列腺上皮细胞分泌的33 kDa糖蛋白。在人血清中，前列腺特异性抗原主要与α-1-抗糜蛋白酶结合，但与其他血清蛋白结合的程度较小。只有一小部分PSA以自由形式存在(自由PSA)。男性血清总PSA的正常值低于4 ng/mL。PSA浓度升高表明前列腺病理改变，包括良性前列腺增生和前列腺癌。
Prostate specific antigen (PSA) is a 33-kDa glycoprotein secreted by epithelial cells of the prostate gland. In human serum, PSA is primarily complexed with α1-antichymotrypsin, and to a lesser extent with other serum proteins. Only a small portion of PSA is present as the free form (free PSA). The expected normal level of total PSA in male serum is lower than 4 ng/mL. A rise in the concentration of PSA indicates prostate pathology, including benign prostatic hyperplasia and prostate cancer.

注：本产品仅用于科研用途，不能直接用于人体或临床诊断使用。