BACKGROUND: Updated National Academy of Clinical Biochemistry (NACB) Laboratory Medicine Practice Guidelines for the use of tumor markers in the clinic have been developed. METHODS: Published reports relevant to use of tumor markers for 5 cancer sites - testicular, prostate, colorectal, breast, and ovarian - were critically reviewed. RESULTS: For testicular cancer, α-fetoprotein, human chorionic g

BACKGROUND. There is wide interest in the use of molecular markers for the early detection of cancer, the prediction of disease outcome, and the selection of patients for chemotherapy. Despite significant and increasing research activity, to the authors' knowledge only a small number of molecular markers have been successfully integrated into clinical practice. In the current study, the experiment

Introduction: Due to its universal applicability for early detection and prediction of cancer stage and disease recurrence, widespread implementation of serum-based prostate-specific antigen (PSA) measurements has a significant influence on current treatment strategies for men with prostate cancer (PCa). However, over-detection and the resultant over-treatment of indolent cancers have been strongl

We have constructed two phagemid vectors containing the gene coding for human Prostate Specific Antigen (PSA) translationally fused to a pelB signal sequence and minor coat protein III of phage fd leading to phage particles that carry PSA on their tips. Phages were characterized by Western blotting and by panning, using biotinylated monoclonal anti-PSA antibodies immobilized onto streptavidin-coat

Protein C inhibitor (PCI), a serine‐proteinase inhibitor first purified from human blood plasma, occurs at high concentrations (3–4 μM) in seminal fluid in both a high‐molecular‐mass and low‐molecular‐mass form. Immunochemical data have previously suggested that PCI in seminal plasma forms complexes with the most abundant serine proteinase in semen, prostate‐specific antigen (PSA). To provide a st

This issue marks the start of my term as department editor for the “Requirements” column. I very much look forward to exploring contemporary aspects of requirements and requirements engineering (RE) in the coming years! As an institute researcher with RISE, I primarily work in strictly regulated domains, in which requirements are cornerstones in the development activities. Please check my introduc

Background. Prostate specific antigen (PSA) is a zymogen of a 33‐kilodalton (kD) serine proteinase with extensive similarity to glandular kallikreins. The mechanism responsible for converting the zymogen into active proteinase has not been defined, but active PSA may be irreversibly inactivated in vitro by two of the major proteinase inhibitors in blood: alpha1‐antichymotrypsin and alpha2‐macroglo

A complete cDNA clone encoding the human acrosin-trypsin inhibitor HUSI-II has been isolated from a cDNA library of human testis and completely sequenced. The cDNA of 594 bp contained an open reading frame of 252 base pairs, The deduced amino acid sequence comprised the complete amino acid sequence of HUSI-II[1] and a putative signal peptide. Northern blotting analysis revealed that HUSI-II is syn

The proteolytic degradation of human seminal fluid proteins at acidic conditions has been investigated. Upon acidification to the pH level of the human vagina, autoproteolysis of most seminal fluid proteins occurred after 30 minute of incubation at 37°C. The degradation was unaffected by inhibitors of serine, thiol, or me‐tallo proteases, whereas pepstatin prevented any proteolysis. The proteins i

Prostate-specific antigen (PSA) and human glandular kallikrein 1 (hGK-1) are structurally similar products of the human glandular kallikrein gene locus on chromosome 19 that become selectively expressed by human prostate tissue. PSA is one of the most abundant prostate-derived proteins in the seminal fluid. The mature form of PSA, a single-chain glycoprotein of 237 amino acids, is a serine proteas

Summary Semenogelin is the predominant protein in human semen. It is synthetised by the secretory epithelium of the seminal vesicles as a 461 amino acid precursor protein. Following cleavage of a predominantly hydrophobic signal peptide, the secreted protein contains 439 amino acid residues. The amino acid sequence of semenogelin has a repetitive structure, but it displays no significant homology

Summary Prostatic acid phosphatase (PAP), prostate‐specific antigen (PSA; or γ‐seminoprotein), and β‐microseminoprotein (β‐MSP; PSP94 or β‐inhibin) are the three predominant proteins secreted by the normal human prostate gland. In the epithelium of normal and hyperplastic prostatic acini and ducts PAP, PSA and β‐MSP have an identical immunohistochemical localization. Highly differentiated (grade I

Prostate specific antigen is an abundant prostate-derived serine protease in the seminal fluid. Low concentrations of the protein are normally released into blood, but above normal concentrations are frequently detected in prostate disease. The PSA-ACT complex is the predominant molecular form of serum PSA (up to ≃95%) although complex formation is slow between the purified proteins in vitro. A fr

Prostate-specific antigen (PSA) is a tissue-specific serine protease similar in structure to the trypsin-like glandular kallikreins but which is unique inasmuch as the enzyme activity is similar to that of chymotrypsin. The active enzyme is a single chain glycoprotein of 237 amino acids. The major form of PSA in serum is complexed to α1-antichymotrypsin (ACT). A small amount is free, non-complexed

Human prostate specific antigen, PSA, is a product of the human glandular kallikrein gene locus on chromosome 19 that is almost selectively expressed by prostate tissue. PSA is one of the dominating prostate derived proteins in seminal fluid. The mature form of PSA, a single chain glycoprotein of 237 amino acids, is a serine protease manifesting restricted chymotrypsin-like activity. PSA is mainly

The introduction of total prostate-specific antigen (tPSA) testing in serum has revolutionized the detection and management of men with prostate cancer. This review will highlight some of the exciting new developments in the field of prostate cancer screening in general and from our SPORE research program at Memorial-Sloan Kettering Cancer Center. First, it is important to understand that the inhe

I den här rapporten analyseras ett urval av de totalt 100 projekt som ingått i Arvsfondens Nyanländasatsning vilken hade till syfte att stärka nyanlända barns och ungas etablering och delaktighet i samhället. Rapporten bygger på tre delstudier. En dokumentstudie bestående av ansökningshandlingar, årsrapporter och i förekommande fall slutrapporter från projekten, en enkät omfattande 89 av sats