Helical tomotherapy combined with capecitabine in the preoperative treatment of locally advanced rectal cancer.

The aim of this study was to evaluate the efficacy of helical tomotherapy plus capecitabine as a preoperative chemoradiotherapy (CRT) in patients with locally advanced rectal cancer (LARC). Thirty-six LARC patients receiving preoperative CRT were analyzed. Radiotherapy (RT) consisted of 45 Gy to the regional lymph nodes and simultaneous-integrated boost (SIB) 50.

DPYD, TYMS, TYMP, TK1, and TK2 genetic expressions as response markers in locally advanced rectal cancer patients treated with fluoropyrimidine-based chemoradiotherapy.

This study is to investigate multiple chemotherapeutic agent- and radiation-related genetic biomarkers in locally advanced rectal cancer (LARC) patients following fluoropyrimidine-based concurrent chemoradiotherapy (CCRT) for response prediction. We initially selected 6 fluoropyrimidine metabolism-related genes (DPYD, ORPT, TYMS, TYMP, TK1, and TK2) and 3 radiotherapy response-related genes (GLUT1, HIF-1α, and HIF-2α) as targets for gene expression identification in 60 LARC cancer specimens. Subsequently, a high-sensitivity weighted enzymatic chip array was designed and constructed to predict responses following CCRT.

A observational study of the efficacy and safety of capecitabine versus bolus infusional 5-fluorouracil in pre-operative chemoradiotherapy for locally advanced rectal cancer.

Background And Objectives: This study is to evaluate the safety and efficacy of preoperative radiotherapy (RT) combined with bolus infusional 5-fluorouracil (5-FU) or oral capecitabine in patients with locally advanced rectal cancer (LARC).

Materials And Methods: Seventy-four patients were retrospectively analyzed. Twenty-seven patients were treated with 5-FU (350 mg/m(2) i.

Overexpression of Helicobacter pylori-associated urease mRNAs in human gastric cancer.

Urease is involved in Helicobacter pylori infection and survival in acid circumference. This study explored the overexpression of H. pylori-associated urease mRNAs in human gastric cancers by using a well-established membrane array analysis method in our lab.

Molecular detection of circulating tumor cells in the peripheral blood of patients with colorectal cancer using RT-PCR: significance of the prediction of postoperative metastasis.

Background: Approximately 20%-45% of colorectal cancer (CRC) patients ultimately develop local recurrence or metastasis following curative surgical resection. The latter is caused by tumor cells shed from the primary carcinoma prior to or during operation, currently undetected by standard clinical staging. Fortunately, the presence of tumor cells in peripheral blood can be detected by molecular methods and is being regarded increasingly as a clinically relevant prognostic factor.

Clinical significance of MUC1 and c-Met RT-PCR detection of circulating tumor cells in patients with gastric carcinoma.

Background: Recently, several reverse transcription-polymerase chain reaction (RT-PCR) techniques have been proven to be useful in the detection of circulating tumor cells (CTCs) in cancer patients. We attempted to detect CTCs in patients with gastric cancer (GC) using a RT-PCR assay for c-Met and MUC1 and to evaluate their clinical value.

Methods: Using a RT-PCR assay, c-Met and MUC1 mRNAs were amplified in 52 GC patients and 36 healthy individuals.

Molecular detection of circulating cancer cells in the peripheral blood of patients with colorectal cancer by using membrane array with a multiple mRNA marker panel.

The objective of this study was mainly to evaluate the simultaneous detection of expression levels of a multiple mRNA marker panel in the peripheral blood of colorectal cancer (CRC) patients for use in complementary CRC diagnosis. Twenty-seven tumor tissue specimens and 80 peripheral blood specimens were collected from CRC patients. Firstly, the levels of multiple molecular markers in the tumor tissue and blood specimens were evaluated by using real-time quantitative PCR (RT-QPCR) and membrane array.

Fatty acid metabolism pathway play an important role in carcinogenesis of human colorectal cancers by Microarray-Bioinformatics analysis.

The present study systematically explored metabolic pathways and altered expressions of genes speculatively participating in colorectal carcinogenesis by using a Microarray-Bioinformatic analysis methods. The results revealed that 157 genes were up-regulated and 281 genes were down-regulated in colorectal cancer (CRC). Gene Ontology (GO) and relevant bioinformatics tools indicated that the functional category to which 438 genes (12%; 438/3800) of the most frequent alteration belonged was metabolism.