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    <ns1:title language="sr">Značaj ekspresije, regulisane estrogenom, proteina PS2 i katepsina D u primarnom operabilnom karcinomu dojke </ns1:title>
    <ns2:alt_title language="en">The relevance of estrogen-regulated expression of pS2 and cathepsin D proteins in primary operable breast carcinoma</ns2:alt_title>
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    <ns1:description language="sr">Karcinom dojke je najzastupljenije maligno oboljenje i jedan od vodećih uzroka smrtnosti od malignih oboljenja među ženama u industrijski-razvijenim zemljama. Tok bolesti ranog karcinoma dojke u prve 3 godine praćenja toka bolesti se karakteriše pojavom maksimalnog broja udaljenih metastaza koji je nezavisan od primenjene terapije. Identifikacija karakteristika tumora/domaćina tumora koje bi preciznije ukazale na pacijente sa niskim/visokim rizikom za pojavu metastatske bolesti predstavlja važan predmet istraživanja.  Cilj ovog istraživanja je bio određivanja granične vrednosti za definisanje povišene ekspresije i, posledično, statusa molekulskih biomarkera, pS2 i katepsina D, kao i identifikovanje grupe pacijentkinja sa niskim/visokim rizikom za relaps, u zavisnosti od statusa biomarkera, u ranom karcinomu dojke.  Analiza povezanosti klasičnih i biohemijskih faktora prognoze/predikcije toka bolesti sa koncentracijama pS2 i katepsina D je omogućila definisanje graničnih vrednosti, za ekspresiju pS2 (15 ng/mg) i za ekspresiju katepsina D (39 pmol/mg) u karcinomu dojke, koje imaju i biološki značaj, u smislu definisanja estrogen-zavisne naspram estrogen-nezavisne ekspresije.  Analiza toka bolesti pacijentkinja na osnovu statusa katepsina D, u periodu od 3 godine nakon hirurške terapije, je ukazala na biološki značaj, tj. na ulogu proteina u procesima proliferacije i apoptoze, i omogućila da se odredi njegov klinički značaj, tj. da se definišu visoko-rizične grupe (pN+ pT2 CD-, pN+ III CD-, I CD+), kao i nisko-rizična grupa pacijentkinja (I CD-), bez obzira na primenjenu terapiju.  Analiza toka bolesti pacijentkinja na osnovu statusa pS2, u periodu od 3 godine nakon hirurške terapije, je ukazala na biološki značaj proteina, tj. na njegovu anti-proliferativnu i anti-apoptotsku, kao i ulogu ovog proteina u rasejavanju malignih ćelija, i omogućila da se odredi njegov klinički značaj, tj. da se definišu visoko-rizične (post pN+ pS2-, pT2 III pS2-, pre II ER+ PR+ pS2+) i nisko-rizične grupe pacijentkinja (post II ER+ PR+ pS2+, pre II ER+ PR+ pS2-), bez obzira na primenjenu terapiju</ns1:description>
    <ns1:description language="en">Breast carcinoma is the most common malignancy and one of the leading causes of death from cancer among women in industrial countries. During the first 3 years of follow-up, early breast carcinoma is characterized by the maximum number of distant metastases, independent of applied therapy. Identification of the tumor/tumor-host characteristics that would specifically indicate patients with low/high risk for metastatic disease represents an important research goal. pS2 and cathepsin D were investigated in order to determine cut-off values for defining elevated expression and the status of biomarkers, providing the basis to identify groups of patients with low/high risk for relapse in early breast carcinoma. The relationship between classical and biochemical prognostic/predictive factors and concentrations of pS2 and cathepsin D allowed us to define the cut-off values for the expression of pS2 (15 ng/mg) and cathepsin D (39 pmol/mg) in breast carcinoma which have a biological relevance, in terms of defining the estrogen-dependent vs. estrogen-independent expression. Analysis of the first 3 years of follow-up on the basis of cathepsin D status indicated biological relevance, i.e. the role of the protein within the processes of proliferation and apoptosis, and allowed us to determine its clinical significance, i.e. to define high-risk groups (pN + pT2 CD-, pN + III CD-, I CD +) and low-risk group of patients (I CD-), regardless of applied therapy. Analysis of the first 3 years of follow-up on the basis of pS2 status indicated biological relevance, i.e. the anti- roliferative and anti-apoptotic as well as the role of this protein in dissemination of malignant cells, and allowed us to determine its clinical significance, i.e. to define high-risk (post pN + pS2-, pT2 III pS2-, pre II ER+ PR+ pS2+) and low-risk groups of patients (post II ER+ PR+ pS2+, pre II ER+ PR+ pS2-), regardless of applied therapy.</ns1:description>
    <ns1:description language="sr">Меdicinа, fizičkа hеmiја, еkspеrimеntаlnа оnkоlоgiја / Medicine, Physical Chemistry, Experimental Oncology 
Datum odbrane: 20.05.2011.</ns1:description>
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        <ns3:firstname> Milan</ns3:firstname>
        <ns3:lastname>Markićević</ns3:lastname>
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        <ns3:firstname> Goran</ns3:firstname>
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        <ns3:firstname>Drаgicа Nikоlić-Vukоsаvlјеvić</ns3:firstname>
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        <ns3:firstname>Мilоš Мојоvić</ns3:firstname>
        <ns3:lastname>Мilоš Мојоvić</ns3:lastname>
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    <ns7:keyword language="sr" seq="0">karcinom dojke, estrogenom-regulisani proteini, pS2, katepsin D, granična vrednost, nisko-rizične grupe pacijentkinja, visoko-rizične grupe pacijentkinja</ns7:keyword>
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