Kallikrein-2 Measurement

2020 ◽  
Author(s):  
Keyword(s):  
Kallikrein 2

815: Human Kallikrein 2 (HK2) Inhibitors Suppress Tumor Growth of Prostate Cancer Xenografts in Nude Mice

2006 ◽  
Vol 175 (4S) ◽  
pp. 263-263
Author(s):  
Christoph Kündig ◽  
Sylvain M. Cloutier ◽  
Steve Aellen ◽  
Loyse M. Felber ◽  
Jair R. Chagas ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Tumor Growth ◽  
Nude Mice ◽  
Human Kallikrein 2 ◽  
Kallikrein 2

scholarly journals Development of Sensitive Immunoassays for Free and Total Human Glandular Kallikrein 2

2004 ◽  
Vol 50 (9) ◽  
pp. 1607-1617 ◽  
Author(s):  
Ville Väisänen ◽  
Susann Eriksson ◽  
Kaisa K Ivaska ◽  
Hans Lilja ◽  
Martti Nurmi ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Detection Limit ◽  
Solid Phase ◽  
Specific Antigen ◽  
Control Group ◽  
Serum Samples ◽  
Human Kallikrein 2 ◽  
Kallikrein 2 ◽  
Capture Antibody ◽  
Total Psa

Abstract Background: Free and total human kallikrein 2 (hK2) might improve the discrimination between prostate cancer and benign prostatic hyperplasia. Concentrations of hK2 are 100-fold lower than concentrations of prostate-specific antigen (PSA); therefore, an hK2 assay must have a low detection limit and good specificity. Methods: PSA- and hK2-specific monoclonal antibodies were used in solid-phase, two-site immunofluorometric assays to detect free and total hK2. The total hK2 assay used PSA-specific antibodies to block nonspecific signal. The capture antibody of the free hK2 assay did not cross-react with PSA. To determine the hK2 concentrations in the male bloodstream, total hK2 was measured in a control group consisting of 426 noncharacterized serum samples. Free and total hK2 were measured in plasma from 103 patients with confirmed prostate cancer. Results: All 426 males in the control group had a total hK2 concentration above the detection limit of 0.0008 μg/L. The median total hK2 concentration was 0.022 μg/L (range, 0.0015–0.37 μg/L). hK2 concentrations were 0.1–58% of total PSA (median, 3.6%). hK2 concentrations were similar in men 41–50 and 51–60 years of age. The ratio of hK2 to PSA steadily decreased from 5–30% at PSA <1 μg/L to 1–2% at higher PSA concentrations. In 103 patients with prostate cancer, the median hK2 concentration in plasma was 0.079 μg/L (range, 0.0015–16.2 μg/L). The median free hK2 concentration was 0.070 (range, 0.005–12.2) μg/L. The proportion of free to total hK2 varied from 17% to 131% (mean, 85%). Conclusions: The wide variation in the free-to-total hK2 ratio suggests that hK2 in blood plasma is not consistently in the free, noncomplexed form in patients with prostate cancer. The new assay is sufficiently sensitive to be used to study the diagnostic accuracies of free and total hK2 for prostate cancer.

Sensitive two-site immunoassays for measurement of the free and total forms of human glandular kallikrein 2 (hK2)

2002 ◽  
Vol 1 (1) ◽  
pp. 96
Author(s):  
Ville Väisänen ◽  
S. Eriksson ◽  
K. Ivaska ◽  
H. Lilja ◽  
K. Pettersson
Keyword(s):  
Glandular Kallikrein ◽  
Kallikrein 2

DISCRIMINATION OF MEN WITH PROSTATE CANCER FROM THOSE WITH BENIGN DISEASE BY MEASUREMENTS OF HUMAN GLANDULAR KALLIKREIN 2 (HK2) IN SERUM

2000 ◽  
Vol 163 (1) ◽  
pp. 311-316 ◽  
Author(s):  
CHARLOTTE BECKER ◽  
TIMO PIIRONEN ◽  
KIM PETTERSSON ◽  
THOMAS BJöRK ◽  
KIRK J. WOJNO ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Benign Disease ◽  
Glandular Kallikrein ◽  
Kallikrein 2

Decreased concentrations of prostate-specific antigen and human glandular kallikrein 2 in malignant versus nonmalignant prostatic tissue

Urology ◽  
2000 ◽  
Vol 56 (3) ◽  
pp. 527-532 ◽  
Author(s):  
Angeliki Magklara ◽  
Andreas Scorilas ◽  
Carsten Stephan ◽  
Glen O Kristiansen ◽  
Steffen Hauptmann ◽  
...  
Keyword(s):  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Prostatic Tissue ◽  
Glandular Kallikrein ◽  
Kallikrein 2
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