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Targeting free pros...
Targeting free prostate-specific antigen for in vivo imaging of prostate cancer using a monoclonal antibody specific for unique epitopes accessible on free prostate-specific antigen alone
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- Evans Axelsson, Susan (author)
- Lund University,Lunds universitet,Urologisk cancerforskning, Malmö,Forskargrupper vid Lunds universitet,Urological cancer, Malmö,Lund University Research Groups
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- Ulmert, David (author)
- Lund University,Lunds universitet,Urologisk cancerforskning, Malmö,Forskargrupper vid Lunds universitet,Klinisk kemi, Malmö,Urological cancer, Malmö,Lund University Research Groups,Clinical Chemistry, Malmö
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- Örbom, Anders (author)
- Lund University,Lunds universitet,Forskningsgruppen för Systemisk strålterapi,Forskargrupper vid Lunds universitet,Systemic Radiation Therapy Group,Lund University Research Groups
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- Peterson, Pernilla (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups
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- Nilsson, Olle (author)
- Fujirebio Diagnostics AB
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- Wennerberg, Johan (author)
- Lund University,Lunds universitet,Huvud- och halscancergruppen,Forskargrupper vid Lunds universitet,Head and Neck Cancer Research Group,Lund University Research Groups
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- Strand, Joanna (author)
- Lund University,Lunds universitet,Systemisk strålterapi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Systemic radiation therapy,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Wingårdh, Karin (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Olsson, Tomas (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Hagman, Zandra (author)
- Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups
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- Tolmachev, Vladimir (author)
- Uppsala University,Uppsala universitet,Enheten för biomedicinsk strålningsvetenskap,Vladimir Tolmachev
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- Bjartell, Anders (author)
- Lund University,Lunds universitet,Urologisk cancerforskning, Malmö,Forskargrupper vid Lunds universitet,Urological cancer, Malmö,Lund University Research Groups,Skåne University Hospital
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- Lilja, Hans (author)
- Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups,Memorial Sloan-Kettering Cancer Center
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- Strand, Sven-Erik (author)
- Lund University,Lunds universitet,Forskningsgruppen för Systemisk strålterapi,Forskargrupper vid Lunds universitet,Systemic Radiation Therapy Group,Lund University Research Groups
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(creator_code:org_t)
- Mary Ann Liebert Inc, 2012
- 2012
- English.
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In: Cancer Biotherapy and Radiopharmaceuticals. - : Mary Ann Liebert Inc. - 1084-9785 .- 1557-8852. ; 27:4, s. 243-251
- Related links:
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https://europepmc.or...
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
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- This study investigated the feasibility of targeting the free, unbound forms of prostate-specific antigen (fPSA) for in vivo imaging of prostate adenocarcinomas (PCa), as PSA is produced and secreted at abundance during every clinical stage and grade of PCa, including castration-resistant disease. We injected 125I-labeled monoclonal antibody PSA30 (specific for an epitope uniquely accessible on fPSA alone) intravenously in male nude mice carrying subcutaneous xenografts of LNCaP tumors (n=36). Mice were sacrificed over a time course from 4 hours to 13 days after injecting 125I-labeled PSA30. Tissue uptake of 125I-PSA30 at 48 and 168 hours after intravenous injection was compared with two clinically used positron emission tomography radiopharmaceuticals, 18F-fluoro-deoxy-glucose (18F-FDG) or 18F-choline, in cryosections using Digital AutoRadiography (DAR) and also compared with immunohistochemical staining of PSA and histopathology. On DAR, the areas with high 125I-PSA30 uptake corresponded mainly to morphologically intact and PSA-producing LNCaP cells, but did not associate with the areas of high uptake of either 18F-FDG or 18F-choline. Biodistribution of 125I-PSA30 measured in dissected organs ex vivo during 4 to 312 hours after intravenous injection demonstrated maximum selective tumor uptake 24–48 hours after antibody injection. Our data showed selective uptake in vivo of a monoclonal antibody highly specific for fPSA in LNCaP cells. Hence, in vivo imaging of fPSA may be feasible with putative usefulness in disseminated PCa.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
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- ref (subject category)
- art (subject category)
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- By the author/editor
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Evans Axelsson, ...
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Ulmert, David
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Örbom, Anders
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Peterson, Pernil ...
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Nilsson, Olle
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Wennerberg, Joha ...
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Strand, Joanna
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Wingårdh, Karin
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Olsson, Tomas
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Hagman, Zandra
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Tolmachev, Vladi ...
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Bjartell, Anders
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Lilja, Hans
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Strand, Sven-Eri ...
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
- Articles in the publication
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Cancer Biotherap ...
- By the university
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Uppsala University
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Lund University