MicroRNA-10b promotes migration and invasion through Hoxd10 in human gastric cancer.

BACKGROUND: This study aims to investigate the effect of miR-10b overexpression on cancer cell proliferation, migration, invasion, and Hoxd10 expression. METHODS: The effect of miR-10b on proliferation, migration, and invasion of MKN-28, BGC-823, and SGC-7901 cells and the expression of Hoxd10 protein in SGC-7901 and BGC-823 cells were detected following transfection of miR-10b inhibitor or Negative Control B. Expression of Hoxd10 protein in 436 paraffin-embedded cancer tissues was also investigated. RESULTS: miR-10b was significantly upregulated in AGS, MKN-28, BGC-823, HCG-27, SGC-7901, and MKN-45 cell lines, miR-10b inhibitor significantly inhibited proliferation and migration of MKN-45, BGC-823 and SGC-7901 cells 48 h after transfection, while Hoxd10 protein in these cells lines had increased 72 h after transfection. Hoxd10 was highly expressed in gastric cancer and correlated with size of tumor, Lauren classification, depth of invasion, lymph node and distant metastasis, Tumor-Node-Metastasis (TNM) stage, and prognosis. CONCLUSIONS: miR-10b promotes migration and invasion through Hoxd10 in human gastric cancer cell lines and may play an important role in tumorigenesis, progression, and prognosis.

Asymptomatic low-grade appendiceal mucinous neoplasm: A case report.

BACKGROUND: Low-grade appendiceal neoplasms (LAMN) are characterized by low incidence and atypical clinical presentations, often leading to misdiagnosis as acute or chronic appendicitis before surgery. The primary diagnostic tool for LAMN is abdominal computed tomography (CT) imaging. Surgical resection remains the cornerstone of LAMN management, necessitating en bloc tumor excision to minimize the risk of iatrogenic rupture. Laparoscopy, known for its minimal invasiveness, reduced postoperative discomfort, and expedited recovery, is a safe and reliable approach for LAMN treatment. Despite the possibility of pseudomyxoma peritonei development, appendectomy and partial appendectomy generally result in negative tumor margins and favorable outcomes, which can be attributed to the disease's slow growth and lower malignancy. CASE SUMMARY: A 71-year-old male patient was admitted to our hospital with a pelvic space-occupying lesion detected 1 mo prior. Physical examination showed a soft abdomen without tenderness or rebound and no palpable masses. No shifting dullness was noted, and digital rectal examination revealed no palpable mass. Enteroscopy revealed a raised, smooth-surfaced mass measuring 3.0 cm in the cecum. Abdominal contrast-enhanced CT showed a markedly thickened and dilated appendix with visible cystic shadows. Laparoscopic surgery was performed and revealed a significantly dilated appendix, leading to laparoscopic resection of the appendix and part of the cecum. Post-surgical pathologic analysis confirmed LAMN. The patient received symptomatic and supportive post-operative care and was discharged on postoperative day 4 without complications such as abdominal bleeding, intestinal obstruction, or incision infection. No tumor recurrence was observed during a 7-mo follow-up period. CONCLUSION: LAMN is a rare disease that lacks specific clinical manifestations. Abdominal CT plays a crucial role in diagnosing LAMN, and laparoscopic surgery is a safe and effective diagnostic and therapeutic approach.

Abnormal expression of miR-301a in gastric cancer associated with progression and poor prognosis.

BACKGROUND AND OBJECTIVES: miR-301a is significantly overexpressed in many cancers. However, its expression and biological role in gastric cancer remain poorly understood. We investigated microRNA-301a (miR-301a) expression in gastric cancer and determined its effects on cancer cell behavior and its clinical significance in the development and progression of gastric cancer. METHODS: We determined miR-301a expression in gastric tumors and gastric cancer cell lines by reverse transcription-polymerase chain reaction. The effects of miR-301a on cell clone formation, migration, and invasion of HGC-27 and SGC-7901 cells were detected following transfection of an miR-301a inhibitor. miR-301a expression in a 304-tissue gastric cancer microarray was determined by in situ hybridization and its role in progression and prognosis was analyzed. RESULTS: miR-301a was upregulated in gastric tumor tissues and cell lines. Down-regulation of miR-301a significantly inhibited cell clone formation, migration, and invasion of HGC-27and SGC-7901 cells. Overexpression of miR-301a in primary gastric cancer tissues was associated with tumor size, invasion depth, lymph node metastasis, and TNM stage. CONCLUSIONS: miR-301a overexpression correlated with TNM stage and prognosis, suggesting that miR-301a is involved in cellular clone formation, migration, and invasion in vitro and may play an important role in the clinical progression and prognosis of gastric cancer.

Clinical utility of measuring expression levels of KAP1, TIMP1 and STC2 in peripheral blood of patients with gastric cancer.

BACKGROUND: We examined preoperative kinesin II-associated protein (KAP1), TIMP metallopeptidase inhibitor 1 (TIMP1) and stanniocalcin 2 (STC2) expression levels in patients with gastric cancers to assess their clinical application for diagnosing and monitoring diseases. METHODS: Real-time reverse transcription-polymerase chain reaction was used to detect the expression levels of KAP1, TIMP1, STC2, talin 2 (TLN2), sushi-repeat-containing protein, X-linked 2 (SRPX2) and secreted protein, acidic, cysteine-rich (SPARC) in the patients' peripheral blood karyocytes. The data were analyzed with receiver operating characteristics (ROC) curves. RESULTS: A total of 112 patients with gastric cancer, 42 patients with recurrence and 107 healthy volunteers were recruited. There were significant correlations between KAP1, TIMP1 and STC2 levels, and TNM tumor stages and distant metastases. The area under the ROC curves (AUC) of KAP1 was 0.803 ± 0.040 (P = 0.0001), the AUC of TIMP1 was 0.767 ± 0.043 (P = 0.0001) and the AUC of STC2 was 0.769 ± 0.045 (P = 0.0001), thus differentiating preoperative gastric cancer patients from healthy volunteers by ROC curve analysis. The AUC of STC2 was 0.739 ± 0.070 (P = 0.004) and the AUC of KAP1 was 0.418 ± 0.088 (P = 0.319), thus differentiating recurrence of gastric cancer from healthy volunteers by ROC curve analysis. High TIMP1 and STC2 expression levels were suspected to be poor prognostic factors of disease recurrence in patients with gastric cancer. CONCLUSIONS: KAP1, TIMP1 and STC2 expression levels may be potential biomarkers for the screening, diagnosis, prognosis and surveillance of gastric cancer.

Hypoxic Tumor-Derived Exosomal miR-199a-3p Promote Gastric Cancer Metastasis via MAP3K4.

Proximal gastrectomy is more frequently recommended for early upper gastric cancer and Siewert II gastroesophageal junction cancer less than 4 cm in length. After proximal gastrectomy, the anatomical structure of the gastroesophageal junction can be destroyed, and the anti-reflux effect of the cardia is lost. In recent years, as various anti-reflux reconstructions have been developed, some functions of the stomach are retained, and serious reflux esophagitis is avoided after proximal gastrectomy. In this article, we summarized the indications, advantages, and disadvantages of various classic reconstruction and latest improved reconstruction method including esophageal and residual stomach anastomosis, tubular gastroesophageal anastomosis, muscle flap anastomosis, jejunal interposition, and double-tract reconstruction.

ZNF521 Is Correlated with Tumor Immune Cell Infiltration and Act as a Valuable Prognostic Biomarker in Gastric Cancer.

Aim: To explore the correlations between the expression of zinc finger protein 521 (ZNF521) with immune invasion and prognosis of gastric cancer. Methods: Expression of ZNF521 was examined by immunohistochemistry in gastric cancer cases. Kaplan-Meier plotter was used to determine the relationships between ZNF521 and prognosis. TIMER and GEPIA were used to analyze the correlation between ZNF521 expression and gene markers of immune cell infiltration. Results: The expression of ZNF521 was up-regulated in gastric cancer samples. Kaplan-Meier analysis indicated that higher expression of ZNF521 was associated with poor prognosis. The expression of ZNF521 was correlated with infiltrating levels of CD4+ T and CD8+ T cells, macrophages, neutrophils, and dendritic cells in gastric cancer, which also correlated with diverse immune marker sets. Conclusions: ZNF521 is correlated significantly with immune cell infiltration and is a valuable biomarker for prognosis in gastric cancer.

Cardia function-preserving surgery and anti-reflux anastomotic method after proximal gastrectomy for gastric cancer: Current status and future perspectives.

The incidence and mortality of gastric cancer ranked 5th and 3rd worldwide, respectively, in 2018, and the incidence of gastroesophageal junction adenocarcinoma increased over the past 40 years. Radical resection and lymph node dissection is the preferred treatment for gastric cancer. Proximal gastrectomy or total gastrectomy is usually performed for gastroesophageal junction adenocarcinoma and upper gastric cancer. Owing to the resection of the cardia structures, the incidence of reflux esophagitis increases significantly after proximal gastrectomy and total gastrectomy, resulting in poor postoperative quality of life. To reduce the incidence of reflux esophagitis and improve patients' postoperative quality of life, various methods to preserve the function of the cardia or to perform anti-reflux reconstruction have emerged. In this manuscript, we systematically introduced the advantages and problems of various anti-reflux anastomotic method after proximal gastrectomy, and cardia-preserving gastrectomy including endoscopic resection (ER), local gastrectomy by gastroscopy combined with laparoscopy, segmental gastrectomy, subtotal gastrectomy, and cardia-preserving radical gastrectomy. Cardia-preserving radical gastrectomy has the advantage of more thorough lymph node dissection and wider indications than those for subtotal gastrectomy. However, the clinical efficacy of cardia-preserving radical gastrectomy requires verification in prospective and controlled clinical trials. Cardia-preserving radical gastrectomy is a promising approach as one of the more reasonable anti-reflux surgeries.

Spontaneous healing after conservative treatment of isolated grade IV pancreatic duct disruption caused by trauma: A case report.

BACKGROUND: Trauma is a common cause of pancreatic duct disruption. Surgical treatment is recommended in current clinical guidelines for adult pancreatic injury because non-surgical treatments have higher risks of serious complications or even death compared with surgical treatment. CASE SUMMARY: A 22-year-old woman was admitted to Tiantai People's Hospital of Zhejiang Province after 1-h duration of abdominal pain and distension following trauma. The diagnosis was "traumatic pancreatic rupture". The patient's symptoms were not severe, her vital signs were stable, and signs of peritonitis were not obvious. Therefore, conservative treatment could be considered, with the possibility of emergency surgery if necessary. After 2 mo of conservative treatment with duct drainage, the pancreatic duct healed spontaneously with no significant complications. CONCLUSION: We report a case of pancreatic duct disruption in the head and neck caused by trauma that was treated conservatively and healed spontaneously, providing a new choice for clinical practice. For isolated pancreatic injury with rupture of the pancreatic duct in the head and neck, conservative treatment under close observation is feasible.

Expression and prognostic significance of CEACAM6, ITGB1, and CYR61 in peripheral blood of patients with gastric cancer.

BACKGROUND: We examined CEACAM6, ITGB1, and cyr61 concentrations from patients with gastric cancers (GCs) to assess their clinical application for diagnosing and monitoring diseases. METHODS: Real-time reverse transcription-polymerase chain reaction was used to detect the expressions of CEA, CEACAM6, ITGB1, IGF1R, CK20, cyr61, and S100A4 in peripheral blood karyocyte from 82 patients with GC, 24 patients with recurrence, and 37 healthy volunteers. Receiver operating characteristics (ROC) curves were constructed. RESULTS: There were significant association between these CEACAM6, ITGB1, and cyr61 and TNM Stages and distant metastasis. The AUC of CEACAM6 was 0.884 ± 0.044 (P = 0.0001), the AUC of cyr61 was 0.833 ± 0.047 (P = 0.0001), and the AUC of ITGB1 was 0.838 ± 0.042 (P = 0.0001) by differentiating preoperative GC patients from healthy volunteers from ROC curve analysis. The AUC of CEACAM6 was 0.761 ± 0.066 (P = 0.001), the AUC of CYR61 was 0.762 ± 0.063 (P = 0.001), and the AUC of ITGB1 was 0.824 ± 0.051 (P = 0.0001), by differentiating recurrence of GC from healthy volunteers from ROC curve analysis. CONCLUSION: The method of detecting the expression of CEACAM6, ITGB1, and CYR61 in peripheral blood of GC patients was more sensitive than CEA, IGF1R, CK20, and S100A4 for the early diagnosis of metastasis and recurrence.

ADAM 10 is associated with gastric cancer progression and prognosis of patients.

BACKGROUND: The metalloproteinase domain-containing protein 10 (ADAM 10) has been implicated in the development and progression of gastric cancer. METHODS: Expression of ADAM 10 and C-erbB-2 were examined immunochemically in 436 clinicopathologically characterized gastric cancer cases. RESULTS: Protein levels of ADAM 10 and C-erbB-2 were up-regulated in gastric cancer lesions compared with adjacent non-cancerous tissues. Positive expression of ADAM 10 correlated with age, size of tumor, location of tumor, depth of invasion, vessel invasion, lymph node, and distant metastasis and TNM stage, and also with expression of C-erbB-2. In stages I, II, and III, the 5-year survival rate of patients with high ADAM 10 expression was significantly lower than in patients with low expression. However, in stage IV, ADAM 10 expression did not correlate with the 5-year survival rate. Further multivariate analysis suggests that up-regulation of ADAM 10 and C-erbB-2 were independent prognostic indicators for the disease, along with depth of invasion, lymph node and distant metastasis and TNM stage. CONCLUSION: Expression of ADAM 10 in gastric cancer is significantly associated with lymph node and distant metastasis, high C-erbB-2 expression, and poor prognosis. ADAM 10 and C-erbB-2 proteins could be useful markers to predict tumor progression and prognosis.

[Relationship between sphingosine kinase 1 expression and tumor invasion, metastasis and prognosis in gastric cancer].

OBJECTIVE: To explore the clinical significance of sphingosine kinase 1 (SPHK1) in the invasion, metastasis and prognosis of gastric cancer. METHODS: Immunohistochemistry was employed to analyze the expression of SPHK1 in 206 clinicopathologically characterized gastric cancer cases from January 2001 to December 2005 at Zhejiang Provincial People's Hospital. RESULTS: SPHK1 protein was detected in 3 (7.5%) of 40 human non-tumor mucosa. All samples expressed the protein at a low level. SPHK1 protein was detected in 181 (87.9%) of 206 human gastric cancer cases. An elevated expression of SPHK1 protein was detected in 126 (61.2%) tumors. And SPHK1 protein was up-regulated in gastric cancer lesions compared with adjacent noncancerous tissues (P = 0.001). The expression of SPHK1 was correlated with the depth of invasion, lymph node metastasis, distant metastasis and TNM stage (P = 0.039, 0.003, 0.020, 0.003). In stages I-II and III, the 5-year survival rate of the patients with a high expression of SPHK1 was significantly lower than those with a low expression (53.6% (15/28) vs 68.6% (24/35), 7.8% (6/77) vs 30.8% (12/39), P = 0.009, 0.006). In stage IV, the expression of SPHK1 was not correlated with the 5-year survival rate (P > 0.05). Further multivariate analysis suggested that lymph node metastasis, distant metastasis, TNM stage and the up-regulation of SPHK1 were independent prognostic indicators for gastric cancer. CONCLUSION: The expression of SPHK1 in gastric cancer is significantly associated with lymph node metastasis, distant metastasis and a poor prognosis. SPHK1 may become a useful marker of predicting tumor progression and prognosis.

High-level expression of S100A4 correlates with lymph node metastasis and poor prognosis in patients with gastric cancer.

BACKGROUND: The present study investigated the clinical significance of S100 calcium binding protein A4 in the development, progression, and metastasis of gastric cancer. METHODS: Tumor tissue, adjacent normal tissue, and lymph node and peritoneal metastases were obtained from patients with gastric cancer, and their gene expression profiles were analyzed by Affymetrix GeneChip HG-U133A2.0 array. The expression of S100A4 was detected by real-time quantitative reverse-transcription polymerase chain reaction (RT-PCR) in gastric tumor tissue and lymph node and peritoneum metastasis. Immunohistochemistry was employed to analyze S100A4 expression in 436 clinicopathologically characterized gastric cancer cases and in corresponding distant metastases from 61 patients. RESULTS: A total of 434 genes and 169 expressed sequence tags were upregulated by at least twofold in the tumor tissue. The expression of S100A4 in lymph node and peritoneal metastases was significantly higher than that in gastric tumor tissue. The expression of S100A4 messenger RNA (mRNA) or protein differed significantly among gastric tumor tissue, matched normal gastric mucosa, and lymph node and peritoneal metastases. Further multivariate analysis suggested that depth of invasion, lymph node and distant metastases, tumor-node-metastasis (TNM) stage, and upregulation of S100A4 were independent prognostic indicators for the disease. CONCLUSION: Gene expression profiles are a useful way to perform simultaneously large-scale analysis of the expression level of thousands of genes. Expression of S100A4 in gastric cancer is associated significantly with lymph node and distant metastases, and poor prognosis. S100A4 may be a useful marker to predict development, progression, and metastasis of gastric cancer.

[Different procedures of alimentary tract reconstruction after subtotal distal gastrectomy in dogs].

OBJECTIVE: To explore an ideal procedure of alimentary tract reconstructions after subtotal distal gastrectomy. METHODS: Thirty-two healthy adult beagle dogs were randomly divided into experimental groups A, B, C and control group (n=8). Groups A, B, C operated by subtotal distal gastrectomy underwent 3 different reconstruction methods: continual jejunal interposition (CJI), Billroth II and Roux-en-Y. The control group received a sham operation. Dogs were observed for 12 weeks post-operation. The different parameters of body weight, food intake, PNI (prognostic nutritional index) and peripheral blood concentration of ghrelin were measured in 4 groups. RESULTS: The body weight, food intake and PNI in Groups A, B, C decreased significantly at post-operation versus pre-operation. There was a slow elevation of body weight, food intake and PNI at Week 12. Group A was significantly better than Groups B and C (P<0.05) while there was no significant difference between Groups B and C. The plasma ghrelin concentrations in Groups A, B, C were significantly reduced at Day 1 post-operation versus pre-operation. But no difference was observed among Groups A, B and C. However an elevated ghrelin concentration was observed at Week 1 post-operation. At Week 12 post-operation, the plasma ghrelin concentration in Group A increased significantly versus Groups B and C (both P<0.05). However, the plasma ghrelin concentration, food intake and PNI were not significantly changed in control group (P>0.05). CONCLUSIONS: The CJI reconstruction procedure is ideally suited for the preservation of duodenal passage after subtotal distal gastrectomy. Subsequently it leads to a significant elevation of circulating ghrelin concentration and a rapid post-operative recovery of food intake, body weight and PNI.

CAP2 is a Valuable Biomarker for Diagnosis and Prognostic in Patients with Gastric Cancer.

Cyclase-associated protein 2 (CAP2) protein is reported to be upregulated in hepatocellular carcinoma (HCC), human breast cancer, and malignant melanoma. However, its expression in gastric cancer remains unknown, this study was to investigate CAP2 expression and its prognostic significance in gastric cancer. Firstly, we analyzed the Oncomine databases to compare CAP2 mRNA expression in gastric cancer and normal tissues. CAP2 protein expression was analyzed in gastric cancer samples and non-tumor mucosa by RT-PCR and immunohistochemical analysis. Consequently, statistical analyses were performed to evaluate the clinicopathological significance of CAP2 expression in gastric cancer. CAP2 expression was significant higher in gastric cancer tissues than that in non-tumor mucosa at protein levels. CAP2 was up-regulated in 57.8% (252/436) of gastric cancer samples, while detected in only 10.9% (10/92) of non-tumor mucosa. Statistical analysis shows that the expression of CAP2 was correlated with tumor size, Lauren's classification, depth of invasion, lymph node and distant metastases, and regional lymph node stage, TNM stage, but not with age, sex, histology classification, and histologic differentiation. Kaplan-Meier analysis indicated that high CAP2 expression was associated with poor overall survival (78.7%) in 203 of 252 gastic cancer patients. In stage I, II, and III tumors, the 5-year survival rate was lower in those with high expression of CAP2 than those with low expression. In stage IV tumors, the expression of CAP2 did not correlate with the 5-year survival rate. Multiple Cox regression analysis indicated CAP2 as an independent predictor for overall survival [hazard ratio (HR) = 2.045, 95% confidence interval: 1.445-2.895, p < 0.01], while Lauren's classification, TNM stage, and expression of CAP2 were independent prognostic factors in patients with gastric cancer. For the first time, we found that CAP2 was upregulated in gastic cancer, and was associated with lymph node and distant metastases. CAP2 may serve as a prognostic indicator for patients with gastic cancer.

VSNL1 Promotes Gastric Cancer Cell Proliferation and Migration by Regulating P2X3/P2Y2 Receptors and Is a Clinical Indicator of Poor Prognosis in Gastric Cancer Patients.

PURPOSE: The aim of this study was to investigate the role of Visinin Like 1 (VSNL1) in the proliferation and migration of gastric cancer (GC) cells as well as its clinical prognostic significance. METHODS: To this end, we evaluated VSNL1 expression in GC tissues and cell lines by real-time PCR and immunohistochemistry. To further explore the effects of VSNL1, a lentiviral vector expressing a short hairpin RNA (shRNA) against VSNL1 was constructed and transduced into the GC cell lines BGC-823 and SGC-7901. The interference efficiency of VSNL1-shRNA was determined by western blot. The effects of VSNL1 on the migration and invasion of GC cells as well as the expression of P2X3/P2Y2 were explored using MTS, colony formation, migration, and western blot assays. RESULTS: VSNL1 mRNA and protein levels were increased in GC tissues and cell lines. Furthermore, VSNL1 expression was positively correlated with Lauren's classification, lymph node metastasis, distant metastasis, TNM stage, and prognosis. VSNL1 expression was inversely correlated with the 5-year survival rate of GC patients. VSNL1 expression was markedly reduced in cells transduced with lentivirus expressing shRNA against VSNL1, and inhibiting VSNL1 expression significantly suppressed cell growth, migration, and colony formation and reduced the expression of P2X3/P2Y2. CONCLUSION: VSNL1 may promote the proliferation and migration of GC cells by regulating P2X3 and P2Y2 expression. VSNL1 plays important roles in GC development and metastasis and may be correlated with patient prognosis.

Surgical Treatment of Port-Site Metastases After Laparoscopic Radical Resection of Gastrointestinal Tumors.

Aim: This study was performed to investigate the feasibility of surgical treatment of port-site metastasis after laparoscopic radical resection of gastrointestinal tumors. Patients and Methods: We retrospectively analyzed the clinical data and follow-up data of 8 patients with port-site metastases after gastrointestinal cancer resection in our hospital from January 2014 to January 2018. Results: Six of port-site metastases occurred within 6 months after gastrointestinal tumor resection, one of port-site metastases occurred in 10 months after the operation, and one of port-site metastases occurred in 30 months after the operation. Any metastasis to the abdominal cavity or distant metastasis was ruled out before the surgical treatment of the port-site metastases, and all patients recovered well after the extended operation. No incisional infection or incisional hernia occurred. By December 2019, 4 patients had died (they had survived for 12, 13, 18, and 24 months, respectively) and 5 patients had survived. The follow-up duration ranged from 19 to 28 months. Conclusions: Surgical resection of port-site metastases is not difficult because of their superficial location. Surgical treatment can improve the prognosis of patients without abdominal metastasis or distant metastasis/recurrence.

miR-199a-3p targets ETNK1 to promote invasion and migration in gastric cancer cells and is associated with poor prognosis.

PURPOSE: To investigate the prognostic significance of miR-199a-3p and its role in invasion and metastasis in gastric cancer. METHODS: miR-199a-3p expression in 436 formalin-fixed and 39 frozen gastric cancer tissues was investigated by in situ hybridization and RT-PCR, respectively. The role of miR-199a-3p in the migration and invasion of gastric cancer cells was determined in overexpression and inhibitor studies using transwell assays and the SGC-7901, BGC-823 and MGC-803 gastric cancer cells lines. The effect of miR-199a-3p expression on ethanolamine kinase 1 (ETNK1) levels was determined by western botting. RESULTS: miR-199a-3p was significantly up-regulated in AGS, SGC-7901, BGC-823 and MGC-803 gastric cancer cells, when compared with GES-1 non-malignant gastric epithelial cells. In situ hybridization studies revealed that human non-tumor gastric mucosa samples were negative for miR-199a-3p expression, while 162 of 436 (37.16%) cases of gastric cancer demonstrated positive expression. miR-199a-3p overexpression was associated with tumor size, Lauren classification, depth of invasion, lymph node and distant metastasis, TNM stage and prognosis. In patients with I, II and III stage tumors, high miR-199a-3p expression was associated with a significantly lower 5-year survival rate. miR-199a-3p overexpression was associated with increased cell migration and invasion. ETNK1 expression was inhibited following miR-199a-3p overexpression in BGC-823 and SGC-7901 cells, and elevated following miR-199a-3p suppression in MGC-803 cells. CONCLUSION: miR-199a-3p is highly expressed in gastric cancer, and correlates with invasion, metastasis and prognosis. miR-199a-3p regulates the invasion and migration of gastric cancer cells by targeting ETNK1. Consequently, miR-199a-3p may serve as a prognostic indicator in gastric cancer.

Acute pancreatitis with abdominal bloating and distension, normal lipase and amylase: A case report.

RATIONALE: Acute pancreatitis is an inflammatory disorder of the pancreas, and its correct diagnosis is an area of interest for clinicians. In accordance with the revised Atlanta classification, acute pancreatitis can be diagnosed if at least 2 of the following 3 criteria are fulfilled: abdominal pain; serum lipase (or amylase) activity at least 3 times the upper limit of normal; or characteristic findings of acute pancreatitis on contrast-enhanced computed tomography (CT) or, less often, magnetic resonance imaging or transabdominal ultrasonography. Diagnostic imaging is essential in patients with no or slight enzyme elevation. If enzymes are normal in cases with abdominal distension, there is clinical doubt about the diagnosis of acute pancreatitis, so an early CT scan should be obtained and other life-threatening disorders excluded. PATIENT CONCERNS: A 50-year-old male presented with a 1-day history of abdominal bloating and distension. On physical examination, abdominal bulging and mild epigastric tenderness were detected. Laboratory evaluation showed normal amylase and lipase. There was no abnormality on abdominal ultrasound or CT of the abdomen and pelvis. On the fourth day of admission, CT of the abdomen and pelvis showed a hypodense lesion in the pancreas surrounded by a moderate amount of peripancreatic fluid. DIAGNOSES: In accordance with the revised Atlanta classification, acute pancreatitis was diagnosed, based on the presence of abdominal pain, and the results of the CT scan of the abdomen and pelvis. INTERVENTIONS: The patient was treated with fasting, gastrointestinal decompression bowel rest, intravenous rehydration, and somatostatin. OUTCOMES: After 2 days of treatment, his abdominal distension was significantly relieved, and the patient was discharged on the seventh day of admission. At the 3-month follow-up, the patient had no recurrence of pancreatitis. LESSONS: This case of abdominal distension could not be explained by common causes, such as ascites, bowel edema, hematoma, bowel distension, or ileus, which led us to suspect pancreatitis.

Long noncoding RNA OIP5-AS1 targets Wnt-7b to affect glioma progression via modulation of miR-410.

The present study was undertaken to investigate the underlying mechanisms of long noncoding RNA OIP5-AS1 via regulating miR-410 to modulate Wnt-7b in the progression of glioma. To address this problem, we measured the expression of OIP5-AS1 and miR-410 in glioma tissues by qRT-PCR. Glioma U87 cells were transfected with OIP5-AS1 siRNA or miR-410 inhibitors. The targeting relationships among miR-410, OIP5-AS1 and Wnt-7b were verified by luciferase reporter assays. Western blotting was employed to determine the expression of Wnt-7b/ß-catenin pathway-related proteins, while MTT, flow cytometry, Transwell assays and wound-healing assays were used to measure the biological characteristics of glioma cells. The results showed that OIP5-AS1 expression was higher and miR-410 was lower in glioma tissues. Luciferase reporter assays confirmed a targeting relationship between OIP5-AS1 and miR-410, as well as between miR-410 and Wnt-7b. Silencing OIP5-AS1 reduced cell proliferation, invasion and migration of glioma U87 cells and led to depressed expression levels of miR-410, Wnt-7b, p-ß-catenin, GSK-3ß-pS9, c-Myc and cyclin D1. Furthermore, down-regulation of OIP5-AS1 induced G0/G1 phase cell cycle arrest and apoptosis of glioma cells. Inhibitors of miR-410 abolished the biological effects of OIP5-AS1 siRNA in glioma cells. In vivo, OIP5-AS1 knockdown also inhibited tumor growth. Taken together, this research suggested that silencing OIP5-AS1 may specifically block the Wnt-7b/ß-catenin pathway via targeted up-regulating miR-410, thereby inhibiting growth, invasion and migration while promoting apoptosis in glioma cells.

Relationship between cell adhesion molecules expression and the biological behavior of gastric carcinoma.

AIM: To evaluate the relationship between the expression of cell adhesion molecules (CAMs) and the biological behavior of gastric carcinoma. METHODS: Expression of syndecan-1, E-cadherin and integrin beta3 were evaluated by immunohistochemical study in a total of 118 gastric carcinomas and 20 non-tumor gastric mucosas. RESULTS: The expressions of syndecan-1 and E-cadherin were significantly lower in gastric carcinoma compared to non-tumor gastric mucosa, and the low expression rates were positively correlated to the tumor invasion depth, vessel invasion, lymph node metastasis and distant metastasis (P < 0.01 in all cases). However, the expression of integrin beta3 was significantly higher in gastric carcinoma compared to non-tumor gastric mucosa, and the high expression rates were positively correlated to the tumor invasion depth, vessel invasion, lymph node metastasis and distant metastasis (P < 0.01 in all cases). In addition, the three protein expressions were correlated to the tumor growth pattern (P < 0.01, P < 0.01, and P < 0.05 respectively), but not correlated to tumor differentiation (P > 0.05, P > 0.05 and P > 0.05 respectively). Positive correlation was observed between the expressions of syndecan-1 and E-cadherin, but they which were negatively correlated to the expression of integrin beta3 (P < 0.01 in all cases). Univariate analysis demonstrated that the mean survival time and 5-year survival rate were lower in the cases with low expressions of syndecan-1 and E-cadherin and high expression of integrin beta3 (P < 0.01, in all cases). COX multivariate analysis showed that the expression level of syndecan-1 could be an independent prognostic index of gastric carcinoma (P < 0.01), whereas E-cadherin and integrin beta3 could not be independent indexes (P > 0.05, P > 0.05 respectively). CONCLUSION: The low expression of syndecan-1 and E-cadherin and the high expression of integrin beta3 are significantly correlated with the invasion and metastasis of gastric carcinoma, and they are highly correlated with each other. Therefore they may serve as important prognostic markers of gastric carcinoma.