Digital pathology for intraoperative frozen section diagnosis of thoracic specimens: an evaluation of a system using remote sampling and whole slide imaging diagnosis.

Background: Digital pathology is now used for primary diagnostic work as well as teaching, research and consultation. In our multisite institution service reorganisation led to histopathology being located in a separate hospital from some surgical specialities. We implemented remotely supervised specimen sampling and frozen section diagnosis using digital pathology.

Lactate dehydrogenase-B is silenced by promoter methylation in a high frequency of human breast cancers.

Objective: Under normoxia, non-malignant cells rely on oxidative phosphorylation for their ATP production, whereas cancer cells rely on Glycolysis; a phenomenon known as the Warburg effect. We aimed to elucidate the mechanisms contributing to the Warburg effect in human breast cancer.

Experimental Design: Lactate Dehydrogenase (LDH) isoenzymes were profiled using zymography.

Impact of different sectioning of excision biopsies of the cervical transformation zone for detection of invasive cervical cancer in 2 European centers related to national cervical screening programs.

Background: The impact of the number of sections used in cervical excision biopsies of transformation zone on sensitivity of histological detection of cervical cancer is poorly documented.

Aim: To assess whether different techniques of sectioning cervical excision biopsies in 2 European laboratories influence the finding of cervical cancer by histopathological examination.

Materials And Methods: The routine assessment at the Department of Histopathology and Cytology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK (Sheffield), encompassed sectioning a cone in 3-mm tissue blocks and cutting 3 levels per block.

Simultaneous evaluation of maspin and CXCR4 in patients with breast cancer.

Aim: To study simultaneously the actions of maspin and CXCR4, which share several similar pathways in cancer, including apoptosis and angiogenesis.

Methods: Our material consisted of 151 invasive breast carcinomas arranged in a tissue microarray setting. Maspin and CXCR4 expression was evaluated by immunohistochemistry.

Expression of mos in ependymal gliomas.

The c-mos gene and its protein product mos, components of the mitogen-activated protein kinase transduction pathway, are known to be involved in the control of meiosis and mitosis. Apart from our previous studies on lung carcinomas and astrocytic gliomas, little has been published about its role in human neoplasia. The aim of this study was to investigate the expression of mos in ependymal neoplasms and to correlate it with tumor grade, proliferative fraction, and clinical behavior.

The complement inhibitor CD59 and the lymphocyte function-associated antigen-3 (LFA-3, CD58) genes possess functional binding sites for the p53 tumor suppressor protein.

p53 is an oncosuppressor protein, which acts via transcriptional and non-transcriptional mechanisms. The transcriptional function of p53 is mediated by specific responsive elements. In the present study we found active responsive elements, specific for the p53 within the 5'flanking region and within the first intron of the gene encoding for the CD59 membrane inhibitor of reactive lysis, and within the first intron of the gene encoding for the CD58 membrane protein (LFA-3).

Expression of mos in astrocytic tumors and its potential role in neoplastic progression.

The c-mos gene and its protein product mos, components of the mitogen-activated protein kinase transduction pathway, are known to be involved in the control of meiosis and mitosis. Apart from a study on lung carcinomas, there is little information about its role in human neoplasia. The aim of this study was to investigate expression of mos in astrocytic tumors and to correlate it with accumulation of p53.