Correction: Overexpression of CTEN relates to tumor malignant potential and poor outcomes of adenocarcinoma of the esophagogastric junction.

[This corrects the article DOI: 10.18632/oncotarget.21109.

[A Case of Locally Advanced Rectal Cancer with Abscess and Rectovesical Fistula Curatively Resected Following Preoperative Chemotherapy].

A 63-year-old man with bloody stools, anal incompetence, and feeling of fatigue was diagnosed as having a RAS mutanttype rectal cancer with abscess and rectovesical fistula. Computed tomography revealed that the tumor had invaded the seminal vesicle, prostate, and bladder and formed an abscess. In addition, his general condition was poor.

Low plasma levels of miR-101 are associated with tumor progression in gastric cancer.

Background: Several studies have identified the decreased expression of the tumor suppressor miR-101 in various cancers. In this study, we tested miR-101 as a potential therapeutic target and novel plasma biomarker for gastric cancer (GC).

Results: The miR-101 expression level was significantly lower in GC tissues ( = 0.

Overexpression of ZRF1 is related to tumor malignant potential and a poor outcome of gastric carcinoma.

Zuotin-related factor 1 (ZRF1) is a recently characterized epigenetic factor involved in transcriptional regulation and is highly overexpressed in several malignancies, but it is not known whether it plays a role in gastric cancer (GC). In this study, we investigated whether ZRF1 acts as a cancer-promoting gene through its activation/overexpression in GC. We analyzed five GC cell lines and 133 primary tumors, which had been curatively resected in our hospital between 2001 and 2003.

Overexpression of CTEN relates to tumor malignant potential and poor outcomes of adenocarcinoma of the esophagogastric junction.

Background: To detect a novel treatment target for adenocarcinoma of the esophagogastric junction (AEG), we tested whether C-terminal tensin-like (CTEN), a member of the tensin gene family and frequently overexpressed in various cancers, acts as a cancer-promoting gene through overexpression in AEG.

Materials And Methods: We analyzed 5 gastric adenocarcinoma (GC) cell lines and 104 primary AEG tumors curatively resected in our hospital between 2000 and 2010.

Results: CTEN overexpression was detected in GC cell lines (2/5 cell lines; 40%) and primary AEG tumor samples (35/104 cases; 34%).

Liquid biopsy in patients with hepatocellular carcinoma: Circulating tumor cells and cell-free nucleic acids.

Hepatocellular carcinoma (HCC), with its high incidence and mortality rate, is one of the most common malignant tumors. Despite recent development of a diagnostic and treatment method, the prognosis of HCC remains poor. Therefore, to provide optimal treatment for each patient with HCC, more precise and effective biomarkers are urgently needed which could facilitate a more detailed individualized decision-making during HCC treatment, including the following; risk assessment, early cancer detection, prediction of treatment or prognostic outcome.

Depleted tumor suppressor miR-107 in plasma relates to tumor progression and is a novel therapeutic target in pancreatic cancer.

This study explored decreased tumor suppressor microRNA (miRNA) plasma levels in pancreatic cancer (PCa) patients to clarify their potential as novel biomarkers and therapeutic targets. We used the microRNA array-based approach to select candidates by comparing plasma levels between PCa patients and healthy volunteers. Six down-regulated miRNAs (miR-107, miR-126, miR-451, miR-145, miR-491-5p, and miR-146b-5p) were selected.

Overexpression of EGFR as an Independent Prognostic Factor in Adenocarcinoma of the Esophagogastric Junction.

Background: Adenocarcinoma of the esophagogastric junction (AEG) has increased in Western and Eastern countries, and its prognosis remains poor. We tested whether epidermal growth factor receptor (EGFR), that is overexpressed in various tumors, acts as a cancer-promoting gene through overexpression in AEG.

Materials And Methods: We analyzed 104 primary AEG tumors which were curatively resected in our hospital between 2000 and 2010.

Overexpression of PBK/TOPK Contributes to Tumor Development and Poor Outcome of Esophageal Squamous Cell Carcinoma.

Background: PDZ-binding kinase/T-cell-originated protein kinase (PBK/TOPK) is a serine-threonine kinase and overexpressed in various types of cancer. PBK/TOPK is associated with tumor cell development and progression through suppression of p53 function. In this study, we tested whether PBK acts as a cancer-promoting factor by being overexpressed in esophageal squamous cell carcinoma (ESCC).

Overexpression of YWHAZ as an independent prognostic factor in adenocarcinoma of the esophago-gastric junction.

Several studies have demonstrated that YWHAZ (14-3-3ζ), included in the 14-3-3 family of proteins, is implicated in the initiation and progression of cancers. To detect a novel treatment target for adenocarcinoma of the esophagogastric junction (AEG), we tested whether YWHAZ acted as a cancer-promoting gene through its overexpression in AEG. We analyzed YWHAZ protein expression in 92 consecutive primary AEG tumors, which had been curatively resected in our institution between 2000 and 2010.

Overexpression of PBK/TOPK relates to tumour malignant potential and poor outcome of gastric carcinoma.

Background: PDZ-binding kinase/T-LAK cell-originated protein kinase (PBK/TOPK) is a serine-threonine kinase and overexpressed in various types of cancer by inhibiting the transactivation activities of p53 and PTEN. We tested whether PBK/TOPK acts as a cancer-promoting gene through its activation/overexpression in gastric cancer (GC).

Methods: We analysed five GC cell lines and 144 primary tumours, which were curatively resected in our hospital between 2001 and 2003.

Circulating MicroRNAs: A Next-Generation Clinical Biomarker for Digestive System Cancers.

MicroRNAs (miRNAs) are short noncoding RNAs that post-transcriptionally regulate gene expression and play important roles in various physiological and developmental processes such as oncogenic or tumor suppressive regulators. Specific miRNA expression signatures have been identified in a number of human cancers. Cell-free miRNAs have recently been stably detected in plasma and serum (circulating miRNAs), and their presence in blood has attracted the attention of researchers due to their potential as non-invasive biomarkers.

Plasma microRNA profiles: identification of miR-23a as a novel biomarker for chemoresistance in esophageal squamous cell carcinoma.

Background: This study aims to explore novel microRNAs in plasma for predicting chemoresistance in preoperative chemotherapy of patients with esophageal squamous cell carcinoma (ESCC) using a microRNA array-based approach.

Results: (1) Four candidate microRNAs (miR-223, 103a, 23b and 23a), which were highly expressed in the pretreatment plasma of patients with a low histopathologic response, were selected. (2) In a large-scale validation analysis by quantitative RT-PCR, plasma levels of miR-223, miR-23b and miR-23a were significantly higher in patients with a low histopathologic response than in those with a high histopathologic response (p = 0.

Circulating miR-21 as an independent predictive biomarker for chemoresistance in esophageal squamous cell carcinoma.

Only a few studies indentified the significance of circulating microRNAs in blood as a predictive biomarker for chemoresistance in esophageal squamous cell carcinoma (ESCC). In this study, we tested whether oncogenic miR-21 promoted chemoresistance in ESCC and served as a biomarker for predicting chemoresistance in plasma of patients with ESCC. All consecutive patients underwent the preoperative chemotherapy regimen (JCOG9907 trial) with cisplatin plus 5-fluorouracil.

Circulating microRNA profiles in plasma: identification of miR-224 as a novel diagnostic biomarker in hepatocellular carcinoma independent of hepatic function.

Aims: This study was designed to identify novel microRNAs (miRNAs) in plasma for detecting and monitoring hepatocellular carcinoma (HCC), independent of hepatic function and background liver diseases with different etiologies.

Results: (1) Four oncogenic miRNAs (miR-151, 155, 191 and 224) with high expression in HCC tissues were selected as candidates. (2) Quantitative RT-PCR using plasma samples from 107 HCC patients and 75 healthy volunteers revealed a significantly higher level of plasma miR-224 in HCC patients than in healthy volunteers according to a small-scale analysis (P < 0.

Liquid biopsy in patients with pancreatic cancer: Circulating tumor cells and cell-free nucleic acids.

Despite recent advances in surgical techniques and perioperative management, the prognosis of pancreatic cancer (PCa) remains extremely poor. To provide optimal treatment for each patient with Pca, superior biomarkers are urgently needed in all phases of management from early detection to staging, treatment monitoring, and prognosis. In the blood of patients with cancer, circulating tumor cells (CTCs) and cell-free nucleic acids (cfNAs), such as DNA, mRNA, and noncoding RNA have been recognized.

Positive Lymph Node Ratio as an Indicator of Prognosis and Local Tumor Clearance in N3 Gastric Cancer.

Background: Nodal metastasis is an important clinical issue in gastric cancer patients. This study was designed to investigate the clinical usefulness of the positive lymph node ratio (PLNR), which reflects both metastatic and retrieved lymph node numbers, in patients with pN3 gastric cancer.

Methods: We retrospectively analyzed the records of 138 consecutive pN3 patients who underwent curative gastrectomy with lymphadenectomy from 2000 to 2012.

[Inventive Approach during Laparoscopic Distal Gastrectomy for Treatment of Gastric Cancer in Patients with Adachi Type Ⅵ Vascular Anomaly].

Vascular anomalies, as described by the Adachi classification, are an inevitable issue for gastric cancer surgery. Here, we report a safe technique for laparoscopic lymph node dissection in a patient with Adachi typeⅥ vascular anomaly. The patient is a 72-year-old woman, who presented with a submucosal gastric cancer located on the lesser curvature of the stomach.

Plasma microRNA profiles: identification of miR-744 as a novel diagnostic and prognostic biomarker in pancreatic cancer.

Background: This study aims to explore novel microRNAs in plasma for screening cancer and predicting clinical outcomes in pancreatic cancer (PCa) patients using a microRNA array-based approach.

Methods: We used the Toray 3D-Gene microRNA array-based approach to compare plasma levels between PCa patients and healthy volunteers.

Results: (1) Six oncogenic microRNAs (miR-615-5p, -744, -575, -557, -675, and -550a) with high expression in plasma were selected.

Overexpression of denticleless E3 ubiquitin protein ligase homolog (DTL) is related to poor outcome in gastric carcinoma.

Background: Denticleless E3 ubiquitin protein ligase homolog (DTL) has been identified in amplified region (1q32) of several cancers and has an oncogenic function. In this study, we tested whether DTL acts as a cancer-promoting gene through its activation/overexpression in gastric cancer (GC).

Methods: We analyzed 7 GC cell lines and 100 primary tumors that were curatively resected in our hospital between 2001 and 2003.

Gastric carcinoma originating from the heterotopic submucosal gastric gland treated by laparoscopy and endoscopy cooperative surgery.

Gastric carcinoma is derived from epithelial cells in the gastric mucosa. We reported an extremely rare case of submucosal gastric carcinoma originating from the heterotopic submucosal gastric gland (HSG) that was safely diagnosed by laparoscopy and endoscopy cooperative surgery (LECS). A 66-year-old man underwent gastrointestinal endoscopy, which detected a submucosal tumor (SMT) of 1.

Histological mixed-type as an independent risk factor for nodal metastasis in submucosal gastric cancer.

Recent studies reported that the histological mixed-type, which consists of differentiated and undifferentiated components, was related to the aggressive clinical features of gastric cancer as well as its poor outcomes. This study was designed to investigate the influences of the mixed-type on lymph node metastasis in patients with submucosal gastric cancer. We analyzed a total of 239 consecutive patients who underwent curative gastrectomy for submucosal gastric cancer between 2004 and 2012 from their hospital records.

Discrepancies in the histologic type between biopsy and resected specimens: a cautionary note for mixed-type gastric carcinoma.

Aim: To evaluate discrepancies between biopsy and resected specimens using the Japanese Classification of Gastric Carcinoma (JCGC) and tumor-node-metastasis (TNM) classification.

Methods: A total of 376 consecutive paired samples from biopsy and resected gastric specimens, which were derived from curative gastrectomy for gastric cancer between 2008 and 2011, were retrospectively analyzed.

Results: (1) Discrepancies in the histologic type were observed between biopsy and resected specimens; 11.

Malignant potential in pancreatic neoplasm; new insights provided by circulating miR-223 in plasma.

Background: Recent studies have identified that microRNAs are stably detectable in plasma/serum because of their binding to specific proteins or being packaged in secretory vesicles.

Methods: We tested miR-223 as a candidate of novel plasma biomarker in pancreatic cancer (PCa) and intraductal papillary mucinous neoplasm (IPMN).

Results: i) miR-223 expression was significantly higher in PCa tissues (p = 0.

[Palliation of gastric cancer-related jejunum stricture with a self-expandable metal stent - a case report with review of the literature].

Prospective randomized controlled studies have indicated that endoscopic placement of self-expandable metal stents (SEMSs)is an effective treatment option for patients with malignant gastric outlet obstruction (GOO). We report a case of effective palliation of gastric cancer-related jejunum stricture with a SEMS. A7 7-year-old woman, who had previously undergone partial remnant gastrectomy and Roux-en-Y reconstruction, was diagnosed with abdominal recurrence of gastric cancer.