Lymphovascular invasion is associated with poor long-term outcomes in patients with pT1N0-3 or pT2-3N0 remnant gastric cancer: a retrospective cohort study.

Background: Lymphovascular invasion (LVI) is a poor prognostic factor in various malignancies. However, its prognostic effect in remnant gastric cancer (RGC) remains unclear. We examined the correlation between LVI and disease prognosis in patients with T1N0-3 or T2-3N0 RGC in whom adjuvant chemotherapy was not indicated and a treatment strategy was not established.

[Two Cases of Blind Pouch Syndrome after Total Gastrectomy].

Blind loop syndrome(BLS)is one of the complications that can occur after intestinal anastomosis. Patients with the syndrome present with various clinical features, including nutrient malabsorption caused by the blind end as a result of the anastomotic morphology. On the other hand, blind pouch syndrome(BPS)is a subtype of BLS.

Prognostic impacts of categorized postoperative complications in surgery for gastric cancer.

Background: Postoperative complications generally aggravate postoperative prognosis and are correlated with both cancer-specific death and death from other causes.

Methods: Subjects were 197 patients who underwent gastrectomy at Kyoto Chubu Medical Center. Cancer-specific survival (CSS) and non-CSS (NCSS) were compared between cases with and without complications.

[A Case of R0 Resection, with Preservation of Bladder Function, of Advanced Rectal Cancer Infiltrating the Bladder with a Single Metastatic Liver Tumor Due to Preoperative Chemotherapy].

A 75-year-old man was diagnosed with advanced rectal cancer infiltrating the bladder and a single metastatic liver tumor. The patient first underwent colostomy followed by 8 cycles of chemotherapy, using a regimen of cetuximab, calcium levofolinate hydrate, fluorouracil and oxaliplatin(Cmab plus mFOLFOX6). This treatment resulted in a partial response(PR).

[Impact of the Age-Adjusted Charlson Comorbidity Index on Postoperative Complications after Gastric Cancer Surgery].

Background: The primary objective of this retrospective study was to examine the association between the age-adjusted Charlson comorbidity index(aCCI)score and postoperative complications after gastric cancer surgery.

Method: A total of 237 patients who underwent distal/total gastrectomy for gastric cancer between 2012 and 2020 were enrolled in this study. The aCCI and CCI were calculated by weighting individual comorbidities.

Impact of Preoperative Nutritional Indicator on Poor Postoperative Outcomes in Geriatric Patients with Colorectal Cancer.

The present study aimed to analyze the association between preoperative nutritional assessment and poor postoperative outcomes in geriatric patients with colorectal cancer. This retrospective study included 138 patients aged ≥80 years with colorectal cancer who underwent surgery from January 2013 to December 2018. Patients were classified into two groups according to outcomes, poor group and normal group.

[Comparison between Overall Survival and Disease-Specific Survival after Surgery in Gastric Cancer].

Background: It has been reported that we should give consideration to death caused by other disease from comparison between overall survival(OS)and disease specific survival(DSS)in several studies.

Patients And Methods: Relationships between the clinicopathological features of OS and DSS were examined among 197 patients undergoing surgery for gastric cancer.

Results: In OS analysis, the Charlson comorbidity index(CCI), pathological T and postoperative complications with Clavien-Dindo Grade≥Ⅲ were associated significantly in multivariate analyses(p=0.

Functional analysis and clinical significance of sodium iodide symporter expression in gastric cancer.

Background: Recent studies have described important roles for the sodium iodide symporter (NIS) in tumor behavior. The objectives of the present study were to investigate the role of NIS in the regulation of genes involved in tumor progression and the clinicopathological significance of its expression in gastric cancer (GC).

Methods: In human GC cell lines, knockdown experiments were conducted using NIS siRNA, and the effects on proliferation, survival, and cellular movement were analyzed.

Treatment with antibodies against primary group A streptococcal peritonitis: A case report and a review of the literature.

Rationale: Several reports describe severe group A streptococcal (GAS) infections causing septic shock, soft-tissue necrosis, and multiple organ failure known as streptococcal toxic shock syndrome (STSS). However, primary peritonitis with GAS is rare and most of them were undertaken surgical procedure.

Patient Concerns: We herein reported the case of 26-year-old healthy woman with sudden severe abdominal pain and hypotension.

[A Case of Giant Liver Metastasis from Gastric Cancer after Surgery for Which Transcatheter Arterial Embolization and Chemotherapy Made Hepatic Resection Possible].

The prognosis of liver metastasis from gastric cancer, which often exhibits incurable factors, is dismal, and no effective therapy exists. We report a case of giant liver metastasis from gastric cancer after surgery, for which transcatheter arterial embolism and chemotherapy(G-SOX)made it possible to perform hepatic resection. The patient was a 78-year-old woman who underwent distal gastrectomy combined with D2 lymphadenectomy at our department in August 2014.

PKCδ-iPLA2-PGE2-PPARγ signaling cascade mediates TNF-α induced Claudin 1 expression in human lung carcinoma cells.

Claudin 1 (CLDN1) is a critical component of tight junction adhesion complexes that maintains the structural integrity of epithelial cell layers. Dysregulation of CLDN1 is associated with the growth and metastasis of human lung adenocarcinoma. TNF-α treatment was previously shown to increase expression of CLDN1 that mediated lung cancer cell morphology changes and migration.

Claudin 1 mediates tumor necrosis factor alpha-induced cell migration in human gastric cancer cells.

Aim: To investigate the role of claudin 1 in the regulation of genes involved in cell migration and tumor necrosis factor alpha (TNF-α)-induced gene expression in human gastric adenocarcinoma cells.

Methods: Knockdown experiments were conducted with claudin 1 small interfering RNA (siRNA), and the effects on the cell cycle, apoptosis, migration and invasion were analyzed in human gastric adenocarcinoma MKN28 cells. The gene expression profiles of cells were analyzed by microarray and bioinformatics.

Prognostic significance of p21 expression in patients with esophageal squamous cell carcinoma.

Background: Although p21 is an important component that regulates cell-cycle progression, no consensus has been reached about its clinicopathological significance in esophageal squamous cell carcinoma (ESCC). In the present study, we investigated its prognostic significance and correlation with cyclin-D1 (CCND1) expression in ESCC.

Materials And Methods: The p21 labeling index (LI) was calculated by immunohistochemistry for 69 primary tumor samples obtained from patients with ESCC who had undergone curative esophagectomy, and correlations between p21 LI and various clinicopathological features, prognosis, and CCND1 LI were studied.

xCT, component of cysteine/glutamate transporter, as an independent prognostic factor in human esophageal squamous cell carcinoma.

Background: xCT is a component of the cysteine/glutamate transporter, which plays a key role in glutathione synthesis. The objectives of the present study were to investigate the role of xCT in the regulation of genes involved in cell cycle progression and the clinicopathological significance of its expression in esophageal squamous cell carcinoma (ESCC).

Methods: xCT expression in human ESCC cell lines was analyzed by Western blotting and immunofluorescent staining.

XB130, a new adaptor protein, regulates expression of tumor suppressive microRNAs in cancer cells.

XB130, a novel adaptor protein, promotes cell growth by controlling expression of many related genes. MicroRNAs (miRNAs), which are frequently mis-expressed in cancer cells, regulate expression of targeted genes. In this present study, we aimed to explore the oncogenic mechanism of XB130 through miRNAs regulation.

Anti-phosphohistone H3 as an independent prognostic factor in human esophageal squamous cell carcinoma.

Background: The immunohistochemical staining of phospho-histone H3 (PHH3) has recently been reported to predict the prognosis of different tumors. However, it has not been evaluated in esophageal squamous cell carcinoma (ESCC). The aim of this study was to evaluate the prognostic impact of PHH3 in ESCC.

Enhancement of the cytocidal effects of hypotonic solution using a chloride channel blocker in pancreatic cancer cells.

Background: Tumor cells exfoliated during surgery for pancreatic cancer can cause peritoneal recurrence. Peritoneal lavage with distilled water has been performed during surgery, but there have been no systematic studies for its efficacy and no experimental data demonstrating the cytocidal effects of distilled water on pancreatic cancer cells. This study investigated the cytocidal effects of hypotonic shock and enhancement using chloride channel blocker in pancreatic cancer cells.

XB130 mediates cancer cell proliferation and survival through multiple signaling events downstream of Akt.

XB130, a novel adaptor protein, mediates RET/PTC chromosome rearrangement-related thyroid cancer cell proliferation and survival through phosphatidyl-inositol-3-kinase (PI3K)/Akt pathway. Recently, XB130 was found in different cancer cells in the absence of RET/PTC. To determine whether RET/PTC is required of XB130-related cancer cell proliferation and survival, WRO thyroid cancer cells (with RET/PTC mutation) and A549 lung cancer cells (without RET/PTC) were treated with XB130 siRNA, and multiple Akt down-stream signals were examined.

XB130 as an independent prognostic factor in human esophageal squamous cell carcinoma.

Background: Adaptor proteins, with multimodular structures, can participate in the regulation of various cellular functions. A novel adaptor protein XB130 has been implicated as a substrate and regulator of tyrosine kinase-mediated signaling and in controlling cell proliferation and apoptosis in thyroid and lung cancer cells. However, its expression and role in gastrointestinal cancer have not been investigated.

Case involving long-term survival after esophageal cancer with liver and lung metastases treated by multidisciplinary therapy: report of a case.

A 57-year-old male with lower esophageal cancer underwent subtotal esophagectomy with lymphadenectomy. The histopathological diagnosis was poorly differentiated squamous cell carcinoma, pT2N1M0 pStageIIB. After one course of postoperative adjuvant chemotherapy involving low-dose CDDP/5FU, a PET-CT scan obtained 12 months after surgery revealed a solitary liver metastasis in the S2 area.

Blockade of chloride ion transport enhances the cytocidal effect of hypotonic solution in gastric cancer cells.

Background: Cancer cells that are exfoliated into the peritoneal cavity during surgery are viable and have the potential to produce peritoneal recurrence. Although peritoneal lavage with distilled water is applied in some cancer surgeries to kill tumor cells, there is no consensus regarding the optimal methodology and its effects.

Methods: Three human gastric cancer cell lines, MKN28, MKN45, and Kato-III, were exposed to distilled water, and the resultant morphologic changes were observed using a microscope.

[Laparoscopic and endoscopic cooperative surgery for gastric tumor--a case report with review of literature].

Thanks to recent advances of therapeutic devices, the less invasive surgical explorations such as endoscopic submucosal resection( ESD) and laparoscopic surgery have widely gained an acceptance and become more common. During laparoscopic partial gastrectomy for submucosal tumor such as gastrointestinal stromal tumor (GIST) of the stomach, it is important to avoid an excessive surgical resection of the gastric wall, which causes a deformity of the stomach and has a potential risk to decrease oral intake. We report here a successfully treated case without any deformity of the stomach and complications using laparoscopic and endoscopic cooperative surgery (LECS) for intraluminal type of GIST.

[A case report--locally advanced pancreatic adenocarcinoma was resected after chemotherapy].

The case was a 36-year-old male whose chief complaints were anorexia and weight loss. Upper gastrointestinal endoscopy revealed circumferential stenosis in the fourth portion of the duodenum, while CT revealed a tumor with a diameter of 60 mm continuing as a single mass from the pancreatic body and tail to the fourth portion of the duodenum, and this was accompanied by findings that raised suspicions of circumferential invasion of the superior mesentric artery (SMA). Based on these results and biopsy, the patient was diagnosed with pancreatic and SMA invasion of duodenal cancer that was considered to be unresectable.

[Partial response of liver metastasis from colon cancer following intermittent oral administration of TS-1 after intra-hepatic arterial single injection of CDDP, doxorubicin and 5-FU].

An intrahepatic arterial injection of CDDP, doxorubicin and 5-FU, followed by 17 courses of oral TS-1 administration (80 mg/day x 14 days, q=28 days), induced a partial response for 9 months after 18 months of stable disease in a 76-year-old male with asynchronous liver metastasis due to ascending colon cancer. TS-1 showed an excellent anticancer effect against colorectal metastatic liver cancers for a long time without loss of QOL or safety.