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CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker
A by-product in the processing of prostate tissue for cell sorting by collagenase digestion is the media supernatant that remains after the cells are harvested. These supernatants contain proteins made by the cells within the tissue. Quantitative proteomic analysis of N-glycosylated proteins detecte...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2948633/ https://www.ncbi.nlm.nih.gov/pubmed/20562849 http://dx.doi.org/10.1038/modpathol.2010.122 |
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author | True, Lawrence D Zhang, Hui Ye, Mingliang Huang, Chung-Ying Nelson, Peter S von Haller, Priska D Tjoelker, Larry W Kim, Jong-Seo Qian, Wei-Jun Smith, Richard D Ellis, William J Liebeskind, Emily S Liu, Alvin Y |
author_facet | True, Lawrence D Zhang, Hui Ye, Mingliang Huang, Chung-Ying Nelson, Peter S von Haller, Priska D Tjoelker, Larry W Kim, Jong-Seo Qian, Wei-Jun Smith, Richard D Ellis, William J Liebeskind, Emily S Liu, Alvin Y |
author_sort | True, Lawrence D |
collection | PubMed |
description | A by-product in the processing of prostate tissue for cell sorting by collagenase digestion is the media supernatant that remains after the cells are harvested. These supernatants contain proteins made by the cells within the tissue. Quantitative proteomic analysis of N-glycosylated proteins detected an increased amount of CD90/THY1 in cancer supernatants compared to non-cancer supernatants. Immunohistochemistry showed that in all carcinomas, regardless of Gleason grade, a layer of CD90-positive stromal fibroblastic cells, approximately 5-to-10 cells deep, was localized to tumor glands. In contrast, a no more than 1-cell wide girth of CD90-positive stromal cells was found around benign glands. The increased number of CD90-positive stromal cells in cancer correlated with overexpression of CD90 mRNA detected by gene expression analysis of stromal cells obtained by laser-capture microdissection. There is increasing evidence that cancer-associated stroma plays a role in both tumor progression and carcinogenesis. Most experiments to identify cancer biomarkers have focused on the cancer cells. CD90, being a marker for prostate cancer-associated stroma, might be a potential biomarker for this cancer. A non-invasive test could be provided by a urine test. Proteomic analysis of urine from patients with prostate cancer identified CD90; conversely, CD90 was not detected in the urine of post-prostatectomy patients. Furthermore, this urinary CD90 protein was a variant CD90 protein not known to be expressed by such cells as lymphocytes that express CD90. These CD90 results were obtained from ∼90 cases consisting of proteomic analysis of tissue and urine, immunohistochemistry, Western blot analysis of tissue media, flow cytometry of cells from digested tissue, and reverse transcriptase polymerase chain reaction analysis of isolated stromal cells. |
format | Text |
id | pubmed-2948633 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
record_format | MEDLINE/PubMed |
spelling | pubmed-29486332011-04-01 CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker True, Lawrence D Zhang, Hui Ye, Mingliang Huang, Chung-Ying Nelson, Peter S von Haller, Priska D Tjoelker, Larry W Kim, Jong-Seo Qian, Wei-Jun Smith, Richard D Ellis, William J Liebeskind, Emily S Liu, Alvin Y Mod Pathol Article A by-product in the processing of prostate tissue for cell sorting by collagenase digestion is the media supernatant that remains after the cells are harvested. These supernatants contain proteins made by the cells within the tissue. Quantitative proteomic analysis of N-glycosylated proteins detected an increased amount of CD90/THY1 in cancer supernatants compared to non-cancer supernatants. Immunohistochemistry showed that in all carcinomas, regardless of Gleason grade, a layer of CD90-positive stromal fibroblastic cells, approximately 5-to-10 cells deep, was localized to tumor glands. In contrast, a no more than 1-cell wide girth of CD90-positive stromal cells was found around benign glands. The increased number of CD90-positive stromal cells in cancer correlated with overexpression of CD90 mRNA detected by gene expression analysis of stromal cells obtained by laser-capture microdissection. There is increasing evidence that cancer-associated stroma plays a role in both tumor progression and carcinogenesis. Most experiments to identify cancer biomarkers have focused on the cancer cells. CD90, being a marker for prostate cancer-associated stroma, might be a potential biomarker for this cancer. A non-invasive test could be provided by a urine test. Proteomic analysis of urine from patients with prostate cancer identified CD90; conversely, CD90 was not detected in the urine of post-prostatectomy patients. Furthermore, this urinary CD90 protein was a variant CD90 protein not known to be expressed by such cells as lymphocytes that express CD90. These CD90 results were obtained from ∼90 cases consisting of proteomic analysis of tissue and urine, immunohistochemistry, Western blot analysis of tissue media, flow cytometry of cells from digested tissue, and reverse transcriptase polymerase chain reaction analysis of isolated stromal cells. 2010-06-18 2010-10 /pmc/articles/PMC2948633/ /pubmed/20562849 http://dx.doi.org/10.1038/modpathol.2010.122 Text en Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms |
spellingShingle | Article True, Lawrence D Zhang, Hui Ye, Mingliang Huang, Chung-Ying Nelson, Peter S von Haller, Priska D Tjoelker, Larry W Kim, Jong-Seo Qian, Wei-Jun Smith, Richard D Ellis, William J Liebeskind, Emily S Liu, Alvin Y CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title | CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title_full | CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title_fullStr | CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title_full_unstemmed | CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title_short | CD90/THY1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
title_sort | cd90/thy1 is over-expressed in prostate cancer-associated fibroblasts and could serve as a cancer biomarker |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2948633/ https://www.ncbi.nlm.nih.gov/pubmed/20562849 http://dx.doi.org/10.1038/modpathol.2010.122 |
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