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Downregulation of t...
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Abrahamsson, AnnelieLinköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten,Region Östergötland, Onkologiska kliniken US
(författare)
Downregulation of tumor suppressive microRNAs in vivo in dense breast tissue of postmenopausal women
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
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2017-09-15
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Impact Journals LCC,2017
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-143240
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143240URI
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https://doi.org/10.18632/oncotarget.20906DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Funding Agencies|Swedish Cancer Society [2015/309]; Swedish Research Council [2013-2457]; LiU-Cancer; ALF of Linkoping University Hospital
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Women with dense breast tissue on mammography are at higher risk of developing breast cancer but the underlying mechanisms are not well understood. De-regulation of microRNAs (miRNAs) has been associated with the onset of breast cancer. miRNAs in the extracellular space participate in the regulation of the local tissue microenvironment. Here, we recruited 39 healthy postmenopausal women attending their mammography-screen that were assessed having extreme dense or entirely fatty breasts (nondense). Microdialysis was performed in breast tissue and a reference catheter was inserted in abdominal subcutaneous fat for local sampling of extracellular compounds. Three miRNAs, associated with tumor suppression, miR-193b, miR-365a, and miR-452 were significantly down-regulated in dense breast tissue compared with nondense breast tissue. In addition, miR-452 exhibited significant negative correlations with several pro-inflammatory cytokines in vivo, which was confirmed in vitro by overexpression of miR-452 in breast cancer cells. No differences were found of miR-21, -29a, -30c, 146a, -148a, -203, or -451 in breast tissue and no miRs were different in plasma. Extracellular miRNAs may be among factors that should be included in studies of novel prevention strategies for breast cancer.
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Capodanno, Alessandra,1978-Linköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten,Region Östergötland, Onkologiska kliniken US(Swepub:liu)aleca68
(författare)
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Rzepecka, AnnaLinköpings universitet,Institutionen för medicin och hälsa,Medicinska fakulteten,Region Östergötland, Röntgenkliniken i Linköping(Swepub:liu)n/a
(författare)
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Dabrosin, CharlottaLinköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten,Region Östergötland, Onkologiska kliniken US(Swepub:liu)chada67
(författare)
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Linköpings universitetAvdelningen för Kirurgi, Ortopedi och Onkologi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Oncotarget: Impact Journals LCC8:54, s. 92134-921421949-2553
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