Clinical impact of circulating miR-221 in plasma of patients with pancreatic cancer

Background: Several recent studies have demonstrated that microRNAs (miRNAs) are stably detectable in plasma/serum. We tested miR-221 and miR-375, which are frequently reported to be highly and poorly expressed in pancreatic cancer (PCa), as candidates for plasma biomarkers in PCa. Methods: This stu...

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Veröffentlicht in:British journal of cancer 2013-02, Vol.108 (2), p.361-369
Hauptverfasser: Kawaguchi, T, Komatsu, S, Ichikawa, D, Morimura, R, Tsujiura, M, Konishi, H, Takeshita, H, Nagata, H, Arita, T, Hirajima, S, Shiozaki, A, Ikoma, H, Okamoto, K, Ochiai, T, Taniguchi, H, Otsuji, E
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container_end_page 369
container_issue 2
container_start_page 361
container_title British journal of cancer
container_volume 108
creator Kawaguchi, T
Komatsu, S
Ichikawa, D
Morimura, R
Tsujiura, M
Konishi, H
Takeshita, H
Nagata, H
Arita, T
Hirajima, S
Shiozaki, A
Ikoma, H
Okamoto, K
Ochiai, T
Taniguchi, H
Otsuji, E
description Background: Several recent studies have demonstrated that microRNAs (miRNAs) are stably detectable in plasma/serum. We tested miR-221 and miR-375, which are frequently reported to be highly and poorly expressed in pancreatic cancer (PCa), as candidates for plasma biomarkers in PCa. Methods: This study was divided into three parts: (1) Confirmation of higher miR-221 levels in primary PCa tissue and cell lines than normal pancreatic tissues. (2) Evaluation of plasma miR-221 and miR-375 concentrations by comparing results from 47 consecutive PCa patients and 30 healthy volunteers. (3) Evaluation of the assay for monitoring tumour dynamics in PCa patients. Results: (1) Expression of miR-221 was significantly higher in PCa tissues and cell lines than normal pancreatic tissues. (2) Plasma miR-221 concentrations were significantly higher in PCa patients than that in benign pancreatic tumours ( P =0.016) and controls ( P
doi_str_mv 10.1038/bjc.2012.546
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We tested miR-221 and miR-375, which are frequently reported to be highly and poorly expressed in pancreatic cancer (PCa), as candidates for plasma biomarkers in PCa. Methods: This study was divided into three parts: (1) Confirmation of higher miR-221 levels in primary PCa tissue and cell lines than normal pancreatic tissues. (2) Evaluation of plasma miR-221 and miR-375 concentrations by comparing results from 47 consecutive PCa patients and 30 healthy volunteers. (3) Evaluation of the assay for monitoring tumour dynamics in PCa patients. Results: (1) Expression of miR-221 was significantly higher in PCa tissues and cell lines than normal pancreatic tissues. (2) Plasma miR-221 concentrations were significantly higher in PCa patients than that in benign pancreatic tumours ( P =0.016) and controls ( P &lt;0.0005), while plasma miR-375 concentrations tended to be lower in PCa patients ( P =0.064), and the miR-221/miR-375 ratio was significantly higher ( P &lt;0.0001) in PCa patients than in controls. (3) Plasma miR-221 concentrations were significantly reduced in postoperative samples ( P =0.018). Furthermore, PCa patients with high plasma miR-221 concentrations had significant correlation with distant metastasis ( P =0.041), and non-resectable status ( P =0.021). Conclusion: Plasma miR-221 could be a useful biomarker for cancer detection, monitoring tumour dynamics and predicting malignant outcomes in PCa patients, and may contribute to clinical decision making in PCa treatments.</description><identifier>ISSN: 0007-0920</identifier><identifier>EISSN: 1532-1827</identifier><identifier>DOI: 10.1038/bjc.2012.546</identifier><identifier>PMID: 23329235</identifier><identifier>CODEN: BJCAAI</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>631/337/384/331 ; 692/699/67/1504/1713 ; 692/699/67/1857 ; 692/700/139 ; Aged ; Biological and medical sciences ; Biomarkers, Tumor - blood ; Biomarkers, Tumor - genetics ; Biomedical and Life Sciences ; Biomedicine ; Cancer Research ; Cell Line, Tumor ; Drug Resistance ; Epidemiology ; Female ; Gastroenterology. Liver. Pancreas. Abdomen ; Humans ; Liver. Biliary tract. Portal circulation. Exocrine pancreas ; Male ; Medical sciences ; MicroRNAs - blood ; Molecular Diagnostics ; Molecular Medicine ; Oncology ; Pancreatic cancer ; Pancreatic Neoplasms - blood ; Pancreatic Neoplasms - genetics ; Tumors</subject><ispartof>British journal of cancer, 2013-02, Vol.108 (2), p.361-369</ispartof><rights>The Author(s) 2013</rights><rights>2014 INIST-CNRS</rights><rights>Copyright Nature Publishing Group Feb 5, 2013</rights><rights>Copyright © 2013 Cancer Research UK 2013 Cancer Research UK</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c563t-f9d518d3f929b81dbb6b7de6aeb96d82470b042d3bde16746c086a58cd4ab8b93</citedby><cites>FETCH-LOGICAL-c563t-f9d518d3f929b81dbb6b7de6aeb96d82470b042d3bde16746c086a58cd4ab8b93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3566805/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3566805/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,41488,42557,51319,53791,53793</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=27104621$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23329235$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kawaguchi, T</creatorcontrib><creatorcontrib>Komatsu, S</creatorcontrib><creatorcontrib>Ichikawa, D</creatorcontrib><creatorcontrib>Morimura, R</creatorcontrib><creatorcontrib>Tsujiura, M</creatorcontrib><creatorcontrib>Konishi, H</creatorcontrib><creatorcontrib>Takeshita, H</creatorcontrib><creatorcontrib>Nagata, H</creatorcontrib><creatorcontrib>Arita, T</creatorcontrib><creatorcontrib>Hirajima, S</creatorcontrib><creatorcontrib>Shiozaki, A</creatorcontrib><creatorcontrib>Ikoma, H</creatorcontrib><creatorcontrib>Okamoto, K</creatorcontrib><creatorcontrib>Ochiai, T</creatorcontrib><creatorcontrib>Taniguchi, H</creatorcontrib><creatorcontrib>Otsuji, E</creatorcontrib><title>Clinical impact of circulating miR-221 in plasma of patients with pancreatic cancer</title><title>British journal of cancer</title><addtitle>Br J Cancer</addtitle><addtitle>Br J Cancer</addtitle><description>Background: Several recent studies have demonstrated that microRNAs (miRNAs) are stably detectable in plasma/serum. 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(2) Plasma miR-221 concentrations were significantly higher in PCa patients than that in benign pancreatic tumours ( P =0.016) and controls ( P &lt;0.0005), while plasma miR-375 concentrations tended to be lower in PCa patients ( P =0.064), and the miR-221/miR-375 ratio was significantly higher ( P &lt;0.0001) in PCa patients than in controls. (3) Plasma miR-221 concentrations were significantly reduced in postoperative samples ( P =0.018). Furthermore, PCa patients with high plasma miR-221 concentrations had significant correlation with distant metastasis ( P =0.041), and non-resectable status ( P =0.021). 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We tested miR-221 and miR-375, which are frequently reported to be highly and poorly expressed in pancreatic cancer (PCa), as candidates for plasma biomarkers in PCa. Methods: This study was divided into three parts: (1) Confirmation of higher miR-221 levels in primary PCa tissue and cell lines than normal pancreatic tissues. (2) Evaluation of plasma miR-221 and miR-375 concentrations by comparing results from 47 consecutive PCa patients and 30 healthy volunteers. (3) Evaluation of the assay for monitoring tumour dynamics in PCa patients. Results: (1) Expression of miR-221 was significantly higher in PCa tissues and cell lines than normal pancreatic tissues. (2) Plasma miR-221 concentrations were significantly higher in PCa patients than that in benign pancreatic tumours ( P =0.016) and controls ( P &lt;0.0005), while plasma miR-375 concentrations tended to be lower in PCa patients ( P =0.064), and the miR-221/miR-375 ratio was significantly higher ( P &lt;0.0001) in PCa patients than in controls. (3) Plasma miR-221 concentrations were significantly reduced in postoperative samples ( P =0.018). Furthermore, PCa patients with high plasma miR-221 concentrations had significant correlation with distant metastasis ( P =0.041), and non-resectable status ( P =0.021). Conclusion: Plasma miR-221 could be a useful biomarker for cancer detection, monitoring tumour dynamics and predicting malignant outcomes in PCa patients, and may contribute to clinical decision making in PCa treatments.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>23329235</pmid><doi>10.1038/bjc.2012.546</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
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subjects 631/337/384/331
692/699/67/1504/1713
692/699/67/1857
692/700/139
Aged
Biological and medical sciences
Biomarkers, Tumor - blood
Biomarkers, Tumor - genetics
Biomedical and Life Sciences
Biomedicine
Cancer Research
Cell Line, Tumor
Drug Resistance
Epidemiology
Female
Gastroenterology. Liver. Pancreas. Abdomen
Humans
Liver. Biliary tract. Portal circulation. Exocrine pancreas
Male
Medical sciences
MicroRNAs - blood
Molecular Diagnostics
Molecular Medicine
Oncology
Pancreatic cancer
Pancreatic Neoplasms - blood
Pancreatic Neoplasms - genetics
Tumors
title Clinical impact of circulating miR-221 in plasma of patients with pancreatic cancer
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