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Browsing by Subject "Breast Neoplasms"

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    • Article  

      Bacterial cupredoxin azurin as an inducer of apoptosis and regression in human breast cancer 

      Punj, V.; Bhattacharyya, S.; Saint-Dic, D.; Vasu, C.; Cunningham, E. A.; Graves, J.; Yamada, T.; Constantinou, Andreas I.; Christov, K.; White, B.; Li, G.; Majumdar, D.; Chakrabarty, A. M.; Das Gupta, T. K. (2004)
      Azurin, a copper-containing redox protein released by the pathogenic bacterium Pseudomonas aeruginosa, is highly cytotoxic to the human breast cancer cell line MCF-7, but is less cytotoxic toward p53-negative (MDA-MB-157) ...

    • Article  

      Black cohosh (Cimicifuga racemosa L.) protects against menadione-induced DNA damage through scavenging of reactive oxygen species: Bioassay-directed isolation and characterization of active principles 

      Burdette, J. E.; Chen, S. -N; Lu, Z. -Z; Xu, H.; White, B. E. P.; Fabricant, D. S.; Liu, J.; Fong, H. H. S.; Farnsworth, N. R.; Constantinou, Andreas I.; Van Breemen, R. B.; Pezzuto, J. M.; Bolton, J. L. (2002)
      The roots/rhizomes of Cimicifuga racemosa L. (Nutt.) (black cohosh) have traditionally been used to treat menopausal symptoms through an unknown mechanism of action. In an effort to determine if black cohosh had additional ...

    • Article  

      Computer-aided classification of breast cancer nuclei 

      Schnorrenberg, F.; Pattichis, Constantinos S.; Schizas, Christos N.; Kyriacou, Kyriacos C.; Vassiliou, M. (1996)
      Breast cancer is the most common malignancy affecting the female population in industrialized countries. Prognostic factors, such as steroid receptors visualized in biopsy slides, provide critical information to oncologists ...

    • Article  

      Computer-aided detection of breast cancer nuclei 

      Schnorrenberg, F.; Pattichis, Constantinos S.; Kyriacou, Kyriacos C.; Schizas, Christos N. (1997)
      A computer-aided detection system for tissue cell nuclei in histological sections is introduced and validated as part of the Biopsy Analysis Support System (BASS). Cell nuclei are selectively stained with monoclonal ...

    • Article  

      Content-based retrieval of breast cancer biopsy slides 

      Schnorrenberg, F.; Pattichis, Constantinos S.; Schizas, Christos N.; Kyriacou, Kyriacos C. (2000)
      The Biopsy Analysis Support System (BASS), previously used for image analysis of immunohistochemically stained sections of breast carcinoma, has been extended to include indexing and content-based retrieval of biopsy slide ...

    • Article  

      D-alpha-tocopheryl polyethylene glycol succinate (TPGS) induces cell cycle arrest and apoptosis selectively in Survivin-overexpressing breast cancer cells 

      Neophytou, Christiana M.; Constantinou, Constantina; Papageorgis, P.; Constantinou, Andreas I. (2014)
      d-alpha-tocopheryl polyethylene glycol succinate (TPGS) is a vitamin E derivative that has been intensively applied as a vehicle for drug delivery systems to enhance drug solubility and increase the oral bioavailability ...

    • Article  

      The effect of the phytoestrogens genistein, daidzein, and equol on the growth of tamoxifen-resistant T47D/PKCα 

      Tonetti, D. A.; Zhang, Y.; Zhao, H.; Lim, S. -B; Constantinou, Andreas I. (2007)
      Soy supplements are often consumed by women for alleviating menopausal symptoms or for the perceived protective effects against breast cancer. More concerning is the concurrent consumption of soy isoflavones with tamoxifen ...

    • Article  

      Genistein inactivates bcl-2, delays the G2/M phase of the cell cycle, and induces apoptosis of human breast adenocarcinoma MCF-7 cells 

      Constantinou, Andreas I.; Kamath, N.; Murley, J. S. (1998)
      The aim of this study was to identify the molecular mechanism of action of the isoflavone, genistein. Genistein at 0.15 mM caused MCF-7 apoptotic cell death, which was accompanied by cell cycle delay in the G2/M phase. ...

    • Article  

      Genistein induces maturation of cultured human breast cancer cells and prevents tumor growth in nude mice 

      Constantinou, Andreas I.; Krygier, A. E.; Mehta, R. R. (1998)
      Results of recent studies in animal models of mammary carcinogenesis showed that the soybean isoflavone genistein is a chemopreventive agent. The objective of the present study was to determine whether soybean isoflavones ...

    • Article  

      Identification of the factors responsible for the in vitro pro-oxidant and cytotoxic activities of the olive polyphenols oleuropein and hydroxytyrosol 

      Odiatou, Elena M.; Skaltsounis, Alexios Leandros; Constantinou, Andreas I. (2013)
      The olive polyphenols oleuropein and hydroxytyrosol were reported recently to produce extracellular hydrogen peroxide (H2O2) under standard culture conditions. The precise factors responsible for this production and the ...

    • Article  

      Identification of the polycomb group protein SU(Z)12 as a potential molecular target for human cancer therapy 

      Kirmizis, Antonis; Bartley, S. M.; Farnham, P. J. (2003)
      We have previously identified SU(Z)12 as an E2F target gene. Because many E2F target genes encode proteins that are critical for the control of cell proliferation, we have further characterized the regulation and expression ...

    • Article  

      Improved detection of breast cancer nuclei using modular neural networks 

      Schnorrenberg, F.; Tsapatsoulis, Nicolas; Pattichis, Constantinos S.; Schizas, Christos N.; Kollias, S.; Vassiliou, M.; Adamou, Adamos K.; Kyriacou, Kyriacos C. (2000)
      A modular neural network-based approach to detect and classify breast cancer nuclei stained for steroid receptors in hispathological sections is evaluated. The system named biopsy analysis support system (BASS) is designed ...

    • Article  

      Induction of discrete apoptotic pathways by bromo-substituted indirubin derivatives in invasive breast cancer cells 

      Nicolaou, Katerina A.; Liapis, Vasilios; Evdokiou, Andreas; Constantinou, Constantina; Magiatis, Prokopios; Skaltsounis, Alexios Leandros; Koumas, Laura; Costeas, Paul A.; Constantinou, Andreas I. (2012)
      Indirubin derivatives gained interest in recent years for their anticancer and antimetastatic properties. The objective of the present study was to evaluate and compare the anticancer properties of the two novel bromo-substituted ...

    • Article  

      A metabolite of equine estrogens, 4-hydroxyequilenin, induces DNA damage and apoptosis in breast cancer cell lines 

      Chen, Y.; Liu, X.; Pisha, E.; Constantinou, Andreas I.; Hua, Y.; Shen, L.; Van Breemen, R. B.; Elguindi, E. C.; Blond, S. Y.; Zhang, Fengwangdong; Bolton, J. L. (2000)
      Estrogen replacement therapy has been correlated with an increased risk of developing breast or endometrial cancer. 4-Hydroxyequilenin (4-OHEN) is a catechol metabolite of equilenin which is a minor component of the estrogen ...

    • Article  

      Point-counterpoint: Soy intake for breast cancer patients 

      Block, K. I.; Constantinou, Andreas I.; Hilakivi-Clarke, L.; Hughes, C.; Tripathy, D.; Tice, J. A. (2002)

    • Article  

      Remodeling of extracellular matrix due to solid stress accumulation during tumor growth 

      Pirentis, A. P.; Polydorou, C.; Papageorgis, P.; Voutouri, C.; Mpekris, F.; Stylianopoulos, T. (2015)
      Solid stresses emerge as the expanding tumor displaces and deforms the surrounding normal tissue, and also as a result of intratumoral component interplay. Among other things, solid stresses are known to induce extensive ...

    • Article  

      Reversal of ER-β silencing by chromatin modifying agents overrides acquired tamoxifen resistance 

      Pitta, Chara A.; Papageorgis, P.; Charalambous, Christina; Constantinou, Andreas I. (2013)
      The purpose of this work is to determine the molecular mechanisms underlying tamoxifen resistance. We show here that ER-β is epigenetically silenced in a cell line with acquired tamoxifen resistance (MCF-7/TAM-R) and this ...

    • Article  

      Role of constitutive behavior and tumor-host mechanical interactions in the state of stress and growth of solid tumors 

      Voutouri, C.; Mpekris, F.; Papageorgis, P.; Odysseos, A. D.; Stylianopoulos, T. (2014)
      Mechanical forces play a crucial role in tumor patho-physiology. Compression of cancer cells inhibits their proliferation rate, induces apoptosis and enhances their invasive and metastatic potential. Additionally, compression ...

    • Article  

      Sonic-hedgehog pathway inhibition normalizes desmoplastic tumor microenvironment to improve chemo- and nanotherapy 

      Mpekris, F.; Papageorgis, P.; Polydorou, C.; Voutouri, C.; Kalli, M.; Pirentis, A. P.; Stylianopoulos, T. (2017)
      Targeting the rich extracellular matrix of desmoplastic tumors has been successfully shown to normalize collagen and hyaluronan levels and re-engineer intratumoral mechanical forces, improving tumor perfusion and chemotherapy. ...

    • Article  

      Stable transfection of an estrogen receptor beta cDNA isoform into MDA-MB-231 breast cancer cells 

      Tonetti, D. A.; Rubenstein, R.; DeLeon, M.; Zhao, H.; Pappas, S. G.; Bentrem, D. J.; Chen, B.; Constantinou, Andreas I.; Jordan, V. C. (2003)
      We previously reported stable transfection of estrogen receptor alpha (ERα) into the ER-negative MDA-MB-231 cells (S30) as a tool to examine the mechanism of action of estrogen and antiestrogens [J. Natl. Cancer Inst. 84 ...

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