Native human Prostate-specific antigen

Product Overview

Prostate-specific antigen (PSA) is a glycoprotein of approx. 30 kDa found mainly in prostatic tissue and seminal fluid; it is produced by normal prostate cells. The molecule consists of approximately 92% protein and 8% carbohydrate. This enzyme participates in the dissolution of the seminal fluid coagulum and plays an important role in fertility. The highest amounts of PSA are found in the seminal fluid; some PSA escapes the prostate and can be found in the serum. This serum component has been used to track the response to therapy in men with prostate cancer.

Application Notes

Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Purity

> 95% (by SDS-PAGE)

Format

Lyophilized

Preservative

None

Storage

Store lyophilized product in freezer (-20 °C to -80 °C). The expiration date of unopened product vial is indicated on the vial label. After reconstitution prepare suitable aliquots. Reconstituted product is stable for at least 6 months when stored in freezer (-20 °C to -80 °C). Avoid freeze/thaw cycles.

Introduction

Prostate cancer is the one of the most common types of cancer found in man. The incidence of prostate cancer increases with age and accounts for a growing number of newly diagnosed patients. Prostate specific antigen (PSA) is produced primarily in the prostate gland and is secreted into the prostate ducts and at ejaculation serves to liquefy the seminal coagulum. Virtually all healthy males under 50 years of age have PSA concentration under 4.0 ng/ml. If PSA level is above 20 ng/ml, the patient most likely to have prostate cancer. Some studies indicated that elevated total PSA levels are found in serum from patients who have prostate cancer cells metastasized throughout their bodies. Other studies indicated that Free PSA, which can not foam a complex with serine protease tends to be more abundant in patients with benign prostatic hyperplasia. PSA Serum Rapid Test use antibodies which can equally recognize both free PSA and PSA-ACT complex.

Keywords

Alternative namesAPS; Gamma seminoprotein; Gamma-seminoprotein; hK3; Kallikrein 3; Kallikrein related peptidase 3; Kallikrein-3; KLK 3; KLK2A1; KLK3; KLK3_HUMAN; P 30 antigen; P-30 antigen; P30 antigen; Prostate Specific Antigen; Prostate-specific antigen; Psa; Semenogelase; Seminin