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Browsing by Subject "Gene mutation"

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    • Article  

      Biomarkers of benefit from cetuximab-based therapy in metastatic colorectal cancer: Interaction of EGFR ligand expression with RAS/RAF, PIK3CA genotypes 

      Pentheroudakis, George; Kotoula, V.; Roock, W. De; Kouvatseas, G.; Papakostas, P.; Makatsoris, T.; Papamichael, D.; Xanthakis, I.; Sgouros, J.; Televantou, D.; Kafiri, G.; Tsamandas, A. C.; Razi, E. D.; Galani, E.; Bafaloukos, Dimitrios; Efstratiou, I.; Bompolaki, I.; Pectasides, Dimitrios; Pavlidis, Nicholas; Tejpar, S.; Fountzilas, George (2013)
      Background: More than half of patients with KRAS-wild type advanced colorectal cancer (CRC) fail anti-EGFR monoclonal antibodies. We studied EGFR-axis messenger RNA (mRNA) expression and RAS, RAF, PIK3CA mutations in order ...

    • Article  

      Cancer of unknown primary site: Missing primary or missing biology? 

      Pentheroudakis, George; Briassoulis, E. Ch; Pavlidis, Nicholas (2007)
      Cancer of unknown primary site (CUP) ranks as the fourth most common cause of cancer deaths and represents both a diagnostic and a management challenge. In CUP, the regression or dormancy of the primary tumor, the development ...

    • Article  

      Direct evidence for normalization of platelet function resulting from platelet count reduction in essential thrombocythemia 

      Tsantes, Argirio E.; Nikolopoulos, Georgios K.; Tsirigotis, P.; Zoi, K.; Zomas, A.; Kapsimali, Violetta; Kopterides, Petros; Chondropoulos, Spyros; Dervenoulas, John; Mantzios, Georgios P. (2011)
      Essential thrombocythemia is characterized by persistent elevation and functional disturbances of platelets. Both the platelet function analyzer-100 (PFA-100) collagen-epinephrine (CEPI) cartridge and aggregometry with ...

    • Article  

      The effect of homocysteine on the clinical outcomes of ventilated patients with severe sepsis 

      Tsantes, Argirio E.; Tsangaris, I.; Nikolopoulos, Georgios K.; Bagos, Pantelis G.; Kopterides, Petros; Antonakos, Georgios; Dimopoulou, Ioanna; Vrioni, G.; Kapsimali, Violetta; Dima, Kleanthi; Armaganidis, Apostolos; Travlou, Anthi S. (2010)
      Background. There is considerable evidence that elevated plasma homocysteine levels are associated with a prothrombotic milieu, whereas activation of the coagulation cascade is an important component of the pathogenesis ...

    • Article  

      Exploring the biology of cancer of unknown primary: Breakthroughs and drawbacks 

      Kamposioras, K.; Pentheroudakis, George; Pavlidis, Nicholas (2013)
      Background: Cancer of unknown primary (CUP) ranks among the ten most common malignancies worldwide. Cancer of unknown primary presents as disseminated disease, has a dismal prognosis and remains a diagnosis of exclusion. ...

    • Article  

      Global profiling of EGFR gene mutation, amplification, regulation and tissue protein expression in unknown primary carcinomas: To target or not to target? 

      Dova, L.; Pentheroudakis, George; Georgiou, I.; Malamou-Mitsi, Vassiliki D.; Vartholomatos, G.; Fountzilas, George; Kolaitis, N.; Kitsou, E.; Pavlidis, Nicholas (2007)
      Introduction: Epidermal growth factor receptor (EGFR) signalling contributes to malignant transformation and survival. We studied molecular predictors of benefit from EGFR-modulating therapies in patients with cancer of ...

    • Article  

      KRAS, NRAS and BRAF mutations in Greek and Romanian patients with colorectal cancer: A cohort study 

      Negru, S.; Papadopoulou, E.; Apessos, A.; Stanculeanu, D. L.; Ciuleanu, E.; Volovat, C.; Croitoru, A.; Kakolyris, S.; Aravantinos, Gerasimos; Ziras, N.; Athanasiadis, E.; Touroutoglou, N.; Pavlidis, Nicholas; Kalofonos, H. P.; Nasioulas, G. (2014)
      Objectives: Treatment decision-making in colorectal cancer is often guided by tumour tissue molecular analysis. The aim of this study was the development and validation of a high-resolution melting (HRM) method for the ...

    • Article  

      Mutational profiling of the RAS, PI3K, MET and b-catenin pathways in cancer of unknown primary: a retrospective study of the Hellenic Cooperative Oncology Group 

      Pentheroudakis, George; Kotteas, E. A.; Kotoula, V.; Papadopoulou, K.; Charalambous, E.; Cervantes, A.; Ciuleanu, T.; Fountzilas, George; Pavlidis, Nicholas (2014)
      Cancer of unknown primary origin (CUP) had a poor prognosis, determined by clinico-histological characteristics, partly due to the lack of insights on its biology. We screened tumour DNA from 87 patients with CUP for CTNNB1 ...

    • Article  

      Perspectives for targeted therapies in cancer of unknown primary site 

      Pentheroudakis, George; Pavlidis, Nicholas (2006)
      Cancer of unknown primary site (CUP) ranks as the fourth most common cause of cancer deaths. Regression of the primary, early development of systemic metastases and resistance to therapy are hallmarks of this heterogeneous ...

    • Article  

      Prognostic factors in aggressive non-Hodgkin's lymphomas 

      Nikolaides, C.; Dimou, S.; Pavlidis, Nicholas (1998)
      Aggressive non-Hodgkin's lymphoma (NHL) is a biologically heterogeneous disease that can be cured with aggressive chemotherapy treatment. Different clinical, biological, cellular and molecular features have been identified ...

    • Article  

      Psychosocial predictors of health outcomes in colorectal cancer: A comprehensive review 

      Sales, P. M. G.; Carvalho, A. F.; McIntyre, R. S.; Pavlidis, Nicholas; Hyphantis, T. (2014)
      Background: A diagnosis of colorectal cancer (CRC) and its long-term treatment may lead to significant psychological distress and impaired health-related quality of life (HRQoL) for a significant proportion of patients. ...

    • Article  

      Serous papillary peritoneal carcinoma: Unknown primary tumour, ovarian cancer counterpart or a distinct entity? A systematic review 

      Pentheroudakis, George; Pavlidis, Nicholas (2010)
      Introduction: Serous peritoneal papillary carcinoma (SPPC), though managed according to ovarian cancer therapeutic principles, has been variably considered as an ovarian cancer counterpart, a peritoneal malignancy with ...

    • Article  

      Systemic dissemination in cancer of unknown primary is independent of mutational inactivation of the KiSS-1 metastasis-suppressor gene 

      Dova, L.; Golfinopoulos, Vassilis; Pentheroudakis, George; Georgiou, I.; Pavlidis, Nicholas (2008)
      Cancer of unknown primary represents a heterogeneous group of malignancies characterised by early systemic dissemination and lack of primary site. KiSS1 is a member of the metastasis-suppressor gene family whose functional ...

    • Article  

      Targeting c-KIT, PDGFR in cancer of unknown primary: A screening study for molecular markers of benefit 

      Dova, L.; Pentheroudakis, George; Golfinopoulos, Vassilis; Malamou-Mitsi, Vassiliki D.; Georgiou, I.; Vartholomatos, G.; Ntemou, A.; Fountzilas, George; Pavlidis, Nicholas (2008)
      Aims: In view of available targeted therapies, we investigated the presence of c-kit, PDGFR gene mutations and protein expression in cancer of unknown primary (CUP) in order to study their contribution in pathogenesis, ...

    • Article  

      A twisted kiss: In vitro and in vivo evidence of genetic variation and suppressed transcription of the metastasis-suppressor gene KiSS1 in early breast cancer 

      Pentheroudakis, George; Kostadima, Lida; Dova, L.; Georgiou, I.; Tzavaras, T.; Vartholomatos, G.; Wirtz, R. M.; Fountzilas, George; Malamou-Mitsi, Vassiliki D.; Pavlidis, Nicholas (2010)
      KiSS-1 is a metastasis suppressor gene, its inactivation linked to advanced tumor stage and dismal prognosis. We studied its mutational status, transcription and protein expression in human cancer cell lines and patients ...

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