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Multiple recognitio...
Multiple recognition assay reveals prostasomes as promising plasma biomarkers for prostate cancer
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- Tavoosidana, Gholamreza (författare)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Ronquist, Gunnar (författare)
- Uppsala universitet,Klinisk kemi
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- Darmanis, Spyros (författare)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Yan, Junhong (författare)
- Uppsala universitet,Molekylära verktyg,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Carlsson, Lena (författare)
- Uppsala universitet,Klinisk kemi
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- Wu, Di (författare)
- Uppsala universitet,Molekylära verktyg,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Conze, Tim (författare)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Ek, Pia (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Semjonow, Axel (författare)
- Prostate Center, Dept. of Urology, University Clinic, Muenster, Germany
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- Eltze, Elke (författare)
- Prostate Center, Gerhard-Domagk Institute of Pathology, University Clinic, Muenster, Germany
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- Larsson, Anders (författare)
- Uppsala universitet,Klinisk kemi
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- Landegren, Ulf (författare)
- Uppsala universitet,Molekylära verktyg,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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- Kamali-Moghaddam, Masood (författare)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi,Science for Life Laboratory, SciLifeLab,Molecular Medicine
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(creator_code:org_t)
- 2011-05-09
- 2011
- Engelska.
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 108:21, s. 8809-8814
- Relaterad länk:
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http://www.pnas.org/...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Prostasomes are microvesicles (mean diameter, 150 nm) that are produced and secreted by normal and malignant prostate acinar cells. It has been hypothesized that invasive growth of malignant prostate cells may cause these microvesicles, normally released into seminal fluid, to appear in interstitial space and therewith into peripheral circulation. The suitability of prostasomes as blood biomarkers in patients with prostate cancer was tested by using an expanded variant of the proximity ligation assay (PLA). We developed an extremely sensitive and specific assay (4PLA) for detection of complex target structures such as microvesicles in which the target is first captured via an immobilized antibody and subsequently detected by using four other antibodies with attached DNA strands. The requirement for coincident binding by five antibodies to generate an amplifiable reporter results in both increased specificity and sensitivity. The assay successfully detected significantly elevated levels of prostasomes in blood samples from patients with prostate cancer before radical prostatectomy, compared with controls and men with benign biopsy results. The medians for prostasome levels in blood plasma of patients with prostate cancer were 2.5 to sevenfold higher compared with control samples in two independent studies, and the assay also distinguished patients with high and medium prostatectomy Gleason scores (8/9 and 7, respectively) from those with low score (<= 6), thus reflecting disease aggressiveness. This approach that enables detection of prostasomes in peripheral blood may be useful for early diagnosis and assessment of prognosis in organ-confined prostate cancer.
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- MEDICINE
- MEDICIN
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Tavoosidana, Gho ...
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Ronquist, Gunnar
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Darmanis, Spyros
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Yan, Junhong
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Carlsson, Lena
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Wu, Di
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visa fler...
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Conze, Tim
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Ek, Pia
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Semjonow, Axel
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Eltze, Elke
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Larsson, Anders
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Landegren, Ulf
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Kamali-Moghaddam ...
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Uppsala universitet