Browsing by Subject "Biological"
Now showing items 1-20 of 43
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Angiogenesis in cancer of unknown primary: Clinicopathological study of CD34, VEGF and TSP-1
(2005)Background: Cancer of unknown primary remains a mallignancy of elusive biology and grim prognosis that lacks effective therapeutic options. We investigated angiogenesis in cancer of unknown primary to expand our knowledge ...
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Biomarkers of benefit from cetuximab-based therapy in metastatic colorectal cancer: Interaction of EGFR ligand expression with RAS/RAF, PIK3CA genotypes
(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 ...
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Biphasic modeling of brain tumor biomechanics and response to radiation treatment
(2016)Biomechanical forces are central in tumor progression and response to treatment. This becomes more important in brain cancers where tumors are surrounded by tissues with different mechanical properties. Existing mathematical ...
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Cancer of unknown primary site: 20 questions to be answered
(2010)Cancer of unknown primary (CUP) is a common, well-recognized and heterogeneous clinical syndrome. Patients with CUP present with metastatic disease in the absence of an identifiable primary tumour despite a diagnostic ...
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Carboplatin plus paclitaxel in unknown primary carcinoma: A phase II Hellenic Cooperative Oncology Group Study
(2000)Purpose: To evaluate the efficacy of the carboplatin/paclitaxel combination in patients with carcinoma of unknown primary site (CUP). Patients and Methods: Seventy-seven consecutive CUP patients (45 women and 32 men; median ...
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Cell-nuclear data reduction and prognostic model selection in bladder tumor recurrence
(2006)OBJECTIVE: The paper aims at improving the prediction of superficial bladder recurrence. To this end, feedforward neural networks (FNNs) and a feature selection method based on unsupervised clustering, were employed. ...
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Chemotherapy for patients with two favourable subsets of unknown primary carcinoma: Active, but how effective?
(2005)Carcinoma of unknown primary (CUP) is characterized by dismal patient survival. The outcome of patients with two favourable risk CUP subsets was studied. Eighty patients diagnosed with either midline lymph node metastases ...
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Clinical value of CA 15-3, mucin-like carcinoma-associated antigen, tumor polypeptide antigen, and carcinoembryonic antigen in monitoring early breast cancer patients
(1996)A total of 209 postsurgical breast cancer patients were prospectively monitored with simultaneous serum level estimations of CA 15-3, mucin-like carcinoma-associated antigen (MCA), tumor polypeptide antigen (TPA), and ...
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Clinicopathological study of metallothionein immunohistochemical expression, in benign, borderline and malignant ovarian epithelial tumors
(2006)Metallothioneins (MTs) are a family of cystein-rich metal-binding proteins, which are expressed in normal cells during fetal and postnatal life but also in a variety of human neoplasms. MT expression in human tumors has ...
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Coevolution of solid stress and interstitial fluid pressure in tumors during progression: Implications for vascular collapse
(2013)The stress harbored by the solid phase of tumors is known as solid stress. Solid stress can be either applied externally by the surrounding normal tissue or induced by the tumor itself due to its growth. Fluid pressure is ...
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Combining two strategies to improve perfusion and drug delivery in solid tumors
(2013)Blood perfusion in tumors can be significantly lower than that in the surrounding normal tissue owing to the leakiness and/or compression of tumor blood vessels. Impaired perfusion reduces oxygen supply and results in a ...
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Endometrioid Carcinoma of the Prostate. The Diagnostic Value of Leu7 and Prostatic Specific Antigen
(1993)Summary— In a case of endometrioid carcinoma of the prostate the expression of Leu7 and prostatic specific antigen (PSA) was studied immunohistochemically on paraffin sections. The same markers were studied in 14 cases of ...
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Evaluation of six tumor markers in patients with carcinoma of unknown primary
(1994)We have retrospectively evaluated six serum tumor markers in 85 patients with carcinoma of unknown primary. The serum levels of carcinoembryonic antigen (CEA), CA 19‐9, CA 15‐3, CA 125, β‐chorionic gonadotropin (β‐HCG) and ...
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Evaluation of the prognostic role of centromere 17 gain and HER2/topoisomerase II alpha gene status and protein expression in patients with breast cancer treated with anthracycline-containing adjuvant chemotherapy: Pooled analysis of two Hellenic Cooperative Oncology Group (HeCOG) phase III trials
(2013)Background: The HER2 gene has been established as a valid biological marker for the treatment of breast cancer patients with trastuzumab and probably other agents, such as paclitaxel and anthracyclines. The TOP2A gene has ...
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Evolution of osmotic pressure in solid tumors
(2014)The mechanical microenvironment of solid tumors includes both fluid and solid stresses. These stresses play a crucial role in cancer progression and treatment and have been analyzed rigorously both mathematically and ...
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Exploring the biology of cancer of unknown primary: Breakthroughs and drawbacks
(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. ...
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Five tumor markers in lung cancer: Significance of total and>-Bound sialic acid
(1991)Total sialic acid (TSA) and > sialic acid (LSA) were evaluated in comparison to carcinoembryonic antigen (CEA) and ferritin and neuron specific enolase (NSE) in 152 untreated patients with primary lung cancer, 107 benign ...
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G-CSF induces elevation of circulating CA 15-3 in breast carcinoma patients treated in an adjuvant setting
(2001)BACKGROUND. Cancer antigen 15-3 (CA 15-3), a circulating marker that determines secreted products of the polymorphic MUC1 gene, has been established as a convenient tool for monitoring breast carcinoma patients. METHODS. ...
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Gene expression of estrogen receptor, progesterone receptor and microtubule-associated protein Tau in high-risk early breast cancer: A quest for molecular predictors of treatment benefit in the context of a Hellenic Cooperative Oncology Group trial
(2009)Background Estrogen receptor (ER) and progesterone receptor (PgR) protein expression carry weak prognostic and moderate predictive utility for the outcome of early breast cancer patients on adjuvant chemohormonotherapy. ...