Maria Kefala

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BACKGROUND Phosphorylation of the H2AX histone is an early indicator of DNA double-strand breaks and of the resulting DNA damage response. In the present study, we assessed the expression and prognostic significance of γ-H2AX in a cohort of 96 patients with operable non-small cell lung carcinoma. METHODS Ninety-six paraffin-embedded specimens of non-small(More)
OBJECTIVES Tumor angiogenesis based on microvessel density assessment has been associated with poor prognosis in several studies of patients with pancreatic ductal adenocarcinoma (PDAC). Expression of endoglin (CD105), a tumor-induced vascularization marker, has been found to represent a negative prognostic factor in many malignant tumors. The aim of our(More)
A 37-year-old male was admitted to the Department of Hemaology in March 2010, due to ecchymoses and nose bleeding. ast medical history was unremarkable. On physical examinaion, he was pale and had a 100/min pulse and a blood pressure f 115/80mmHg. There was neither hepatosplenomegaly nor nlarged lymph nodes. Complete blood count was as follows: Hb .4 g/dL,(More)
The expression of activated forms of key proteins of the DNA damage response machinery (pNBS1, pATM and γH2AX) was assessed by means of immunohistochemistry in bone marrow biopsies of 74 patients with de novo myelodysplastic syndromes (MDS) and compared with 15 cases of de novo acute myeloid leukemia (AML) and 20 with reactive bone marrow histology.(More)
Real-time PCR-based molecular diagnostic techniques were used for the comparative identification of the most common KRAS and BRAF mutations from methanol liquid-based cytology samples and matched, formalin-fixed and paraffin-embedded tissue samples. Methanol-based fixation and preservation of brushing samples of colorectal carcinomas could contribute to(More)
S100 proteins are involved in carcinogenesis, metastasis, and survival. S100A2 is a member of the S100 family, and its expression and precise role in patients with non-small cell lung carcinoma (NSCLC) has been debated. Therefore, we examined the immunohistochemical expression patterns of S100A2 in NSCLC in relation to clinicopathological parameters,(More)
Simultaneous development of adenocarcinoma and primary B cell lymphoma of mucosa-associated lymphoid tissue (MALT) lymphoma of the colon is rare; only one case has so far been reported out of 13 cases with the coexistence of colonic adenocarcinoma with involvement of the colon by lymphoma. We hereby present three more cases, two females (aged 75 and 71(More)
OBJECTIVES The demethylating factor 5-Azacytidine (5-AZA) improves survival of patients with myelodysplastic syndromes (MDS) in randomized control trials but the results in 'real life' are controversial. METHODS In this retrospective study, we evaluated the outcome of 56 high-risk MDS patients who were treated with 5-AZA between 2005 and 2013. 5-AZA was(More)
Carcinosarcoma (CS) of the breast is a rare, poorly differentiated, malignant tumor which represents less than 0.1% of all breast cancers. It is strictly defined as a mixed, biphasic neoplasm consisting of a carcinomatous component combined with a malignant nonepithelial element of mesenchymal origin. We present a female patient with breast CS. Relevant(More)