Background: Pancreatic cancer is a common malignant tumor of the digestive tract. It has a high degree of malignancy and poor prognosis. Finding effective molecular markers has great significance for pancreatic cancer diagnosis and treatment.
View Article and Find Full Text PDFColorectal cancer (CRC) is one of the most common malignant tumors in the world. With the deepening of people's understanding of CRC at the molecular level, the survival and prognosis of CRC have been significantly improved with the help of surgery, radiotherapy, and chemotherapy, molecular targeted biological therapy and early detection of diseases. The research of different disciplines and the development of multihistological analysis in recent years have proved that the occurrence and development of CRC is a complex biological process with the common action of multiple factors, which involves the huge changes of various histological levels such as the genome, transcriptome, and epigenome.
View Article and Find Full Text PDFNowadays, pancreatic cancer (PC) remains the most lethal tumor, partially due to the invasive and treatment-resistant phenotype induced by the extent of hypoxic stress within the tumor tissue. According to previous studies, miR-142/HIF-1α and miR-133a/EGFR could modulate PC cell proliferation under hypoxic and normoxic conditions, respectively. In the present study, FEZF1-AS1, a recently described oncogenic long noncoding RNA, was predicted to target both miR-142 and miR-133a; thus, we hypothesized that FEZF1-AS1 might affect PC cell proliferation through these two axes under hypoxic or normoxic conditions.
View Article and Find Full Text PDFWorld J Clin Cases
November 2018
Choledochocele (also known as type III choledochal cyst according to Todani's classification) is a cystic dilation of the distal segment of the common bile duct protruding into the duodenal lumen. Cases are rare and the etiology remains unclear. It is usually misdiagnosed as peptic ulcer, as in the patient whose case is described here.
View Article and Find Full Text PDFPancreatic cancer has one of the highest mortality rates among malignant tumors and is characterized by rapid invasion, early metastasis and chemoresistance. X-linked inhibitor of apoptosis (XIAP) and survivin are two of the most important members of the IAP family. Previous studies have shown that XIAP and survivin were overexpressed in pancreatic cancer and were closely associated with cell proliferation and chemoresistance to gemcitabine.
View Article and Find Full Text PDFMicroRNAs (miRNAs) represent a class of small non‑coding RNAs regulating gene expression by inducing the degradation of RNA or interfering with translation. Aberrant miRNA expression has been described in several types of cancer in humans. In the present study, it was demonstrated that miR‑145 is downregulated in pancreatic cancer tissues and the Panc‑1 cell line.
View Article and Find Full Text PDFObjective: To investigate the effect on cell proliferation and chemosensitivity of human pancreatic cancer cells Panc-1 after X-linked inhibitor of apoptosis protein (XIAP) and Survivin are inhibited simultaneously, and to compare it with the separate gene suppression strategy by which expression of XIAP or Survivin is inhibited respectively.
Methods: Panc-1 (Panc-1-X, Panc-1-S and Panc-1-XS) in which expression of XIAP and/or Survivin was inhibited, was established by using XIAP-shRNA lentiviral and Survivin-shRNA lentiviral we had built. The expressions of XIAP and Survivin mRNA and protein were evaluated by Real-time PCR and Semi-quantitatively Western blot analysis; cell proliferation was investigated by cell counting and colony formation assay; cell apoptosis was investigated by Caspase-3/7 activity assay kit and flow cytometry; gemcitabine (Gem) chemosensitivity was investigated by MTT assay.
The majority of patients with pancreatic cancer are resistant to gemcitabine. One of the mechanisms involved is the anti-apoptotic ability of these cells. The median lethal dose (LD50) of gemcitabine for PANC-1 cells was higher than that for Mia PaCa-2 cells and the former had higher nuclear factor-κB (NF-κB) and X-linked inhibitor of apoptosis protein (XIAP) levels.
View Article and Find Full Text PDFAim: To determine whether lentivirus-mediated shRNA targeting the X-linked inhibitor of apoptosis protein (XIAP) gene could be exploited in the treatment of pancreatic cancer.
Methods: Human pancreatic cancer cells Panc-1, Mia-paca2, Bxpc-3 and SW1990, infected with lentivirus, were analyzed by real-time polymerase chain reaction (PCR). Western blotting was used to examine XIAP protein levels, survivin and p-Akt to confirm the result of real-time PCR and determine the possible mechanism.
A review of the literature indicates a higher prevalence of depression and anxiety in patients with pancreatic carcinoma compared with nonclinical populations. The aims of this study were to evaluate the tripartite model for assessing symptoms of depression and anxiety and develop a Chinese version of the Mood and Anxiety Symptoms Questionnaire-Short Form (MASQ-SF) in patients with pancreatic cancer. The final sample consisted of 1,029 patients with pancreatic cancer.
View Article and Find Full Text PDFThe aim of this study was to investigate the inhibitor of apoptosis proteins survivin and XIAP in pancreatic cancer by determining their biological characteristics and expression. XIAP and survivin are potential therapeutic targets for pancreatic cancer, and elucidating their association with cell proliferation and apoptosis may lead to the development of novel treatments for this disease. The human pancreatic cancer SW1990 cell line was infected with lentivirus and then analyzed by real-time PCR, and the results were confirmed by Western blotting.
View Article and Find Full Text PDFWorld J Gastroenterol
October 2010
Aim: To study the diagnosis of hepatocellular carcinoma (HCC) presenting as bile duct tumor thrombus with no detectable intrahepatic mass.
Methods: Six patients with pathologically proven bile duct HCC thrombi but no intrahepatic mass demonstrated on the preoperative imaging or palpated intrahepatic mass during operative exploration, were collected. Their clinical and imaging data were retrospectively analyzed.
Objective: To study the effect of lower-molecular weight heparin in the prevention of pancreatic encephalopathy (PE) in the patient with severe acute pancreatitis (SAP).
Methods: Two hundred sixty-five SAP patients were randomly divided into 2 groups: (1) conventional treatment group (C group, n = 130) and (2) conventional treatment plus lower-molecular weight heparin treatment group (LT group, n = 135). The clinical parameters, laboratory parameters and computed tomographic (CT) score of pancreatic necrosis (CTSPN), incidence of PE, and mortality in the 2 groups were compared.
Beijing Da Xue Xue Bao Yi Xue Ban
August 2009
A 18-year-old male patient's case was diagnosed as Degos'disease with pathognomonic skin lesions, accompanied by small bowel perforation, and reported here. Skin histopothological test show that the typical wedge-shaped necrobiosis and lymphocyte inflammatory infiltration. Vessels showed narrowing and thrombosis, with lymphocyte infiltration.
View Article and Find Full Text PDFBackground & Objective: Ezrin protein is a membrane cytoskeletal crosslinker between the cell membrane and cytoskeleton. Increasing evidence has shown that Ezrin may be associated with tumor invasion and progression. This study was to explore the correlation of Ezrin to metastasis of pancreatic carcinoma.
View Article and Find Full Text PDFObjective: To explore an effective method of treating serious hepatic injuries.
Methods: A retrospective analysis was conducted on 92 consecutive cases of serious hepatic injuries during recent 21 years.
Results: Eighty-four cases were treated with operation, and 8 cases with nonoperation management (NOM).