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https://www.readbyqxmd.com/read/28535506/long-noncoding-rna-afap1-as1-promoted-tumor-growth-and-invasion-in-cholangiocarcinoma
#1
Xu Lu, Chuang Zhou, Renfeng Li, Yilei Deng, Longshuan Zhao, Wenlong Zhai
BACKGROUND: Long non-coding RNAs (lncRNAs) have been shown to play important roles in a wide range of pathophysiological processes, including cancer progression. Our previous study has shown that AFAP1-AS1 was upregulated and acted as an oncogene in hepatocellular carcinoma. However, the expression and biological functions of lncRNA AFAP1-AS1 in intrahepatic cholangiocarcinoma (CCA) remains largely unknown. METHODS: The expression level of AFAP1-AS1 was measured in 56 pairs of human cholangiocarcinoma tumor tissues and corresponding adjacent normal bile duct tissues...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28529808/mirrizi-syndrome-and-markedly-elevated-levels-of-carbohydrate-antigen-19-9-in-the-absence-of-malignant-disease
#2
Natasha Shah, Eula Tetangco, Hafiz Muhammad Sharjeel Arshad, Hareth Raddawi
Elevated carbohydrate antigen 19-9 (CA19-9) beyond 1000 U/L occurs in nonneoplastic conditions which is causing questioning of the use of CA19-9 as a marker for screening. We report a case where a 51-year-old male with Mirrizi Syndrome (MS) presented with markedly increased CA19-9 level (4,618 U/mL). MS is a rare complication characterized by compression of the common bile or hepatic duct caused by an impacted gallstone in the cystic duct or neck of the gallbladder. Biliary epithelial cells secrete CA19-9: it is hypothesized that increased proliferation of such cells caused by inflammation leads to increased secretion...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28529742/intraductal-tubulopapillary-neoplasm-accompanied-by-invasive-carcinoma-of-the-pancreas-a-case-report-and-review-of-the-literature
#3
Li Niu, Zhigao Xu, Huan Liu, Hong Cao, Guifang Yang
Intraductal tubulopapillary neoplasms (ITPNs) are rare pancreatic neoplasms accounting for ~0.4% of pancreatic tumors. However, their clinicopathological characteristics have not been clearly determined and the number of available clinical studies on this type of tumor is limited at present. Due to the rare incidence of ITPN, diagnosis is often delayed. We herein present a unique case of a 38-year-old man who was diagnosed with ITPN accompanied with invasive carcinoma of the pancreas and underwent total pancreatectomy...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28523328/duodenal-gastrointestinal-stromal-tumor-presenting-as-pancreatic-head-mass-a-case-report
#4
DănuŢ Vasile, George Iancu, Raluca Claudia Iancu, George Simion, Radu Constantin Ciuluvică
Duodenal gastrointestinal stromal tumors (GISTs) are uncommon. Tumors arising from the first and the second part of the duodenum (DI and DII, respectively) can be wrongly diagnosed as pancreatic mass. We present a case of a 59-year-old woman who came with abdominal pain and severe upper gastrointestinal bleeding (hemoglobin 3.5 g÷dL). A solid, heterogeneously enhancing neoplasm in the head of the pancreas was revealed preoperatively by an abdominal computed tomography scan. A diagnosis of GIST was suggested...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28515290/a-point-mutation-in-the-rhesus-rotavirus-vp4-protein-generated-through-rotavirus-reverse-genetics-system-attenuates-the-murine-model-of-biliary-atresia
#5
Sujit K Mohanty, Bryan Donnelly, Phylicia Dupree, Inna Lobeck, Sarah Mowery, Jaroslaw Meller, Monica McNeal, Greg Tiao
Rotavirus infection is one of the most common causes of diarrheal illness in humans. In neonatal mice, rhesus rotavirus (RRV) can induce biliary atresia (BA), a disease resulting in inflammatory obstruction of the extra-hepatic biliary tract and intrahepatic bile ducts. We have previously shown that the amino acid, arginine (R) within the sequence "SRL" (amino acids 445-447) on the RRV VP4 protein is required for viral binding and entry into biliary epithelial cells. To determine if the single amino acid (R) influences the pathogenicity of the virus, we generated a recombinant virus with a single amino acid mutation at this site through a reverse genetics system...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28508685/primary-epidermoid-cyst-of-biliary-duct-presenting-as-choledochal-cyst
#6
Dong Hyang Kwon, Lynt B Johnson, Metin Ozdemirli
Choledochal cyst is a cystic dilation of the biliary tree that can increase the risk of malignancy in bile ducts and the gallbladder. These are usually lined by bile duct epithelium, which may undergo intestinal and squamous metaplasia. This is the first report of clinically diagnosed type II choledochal cyst that is entirely lined by metaplastic stratified squamous epithelium, unlike most other cysts, which are histologically lined by bile duct epithelium. This observation can potentially explain the underlying pathogenic mechanism of rare reports of squamous cell carcinomas arising in bile duct systems...
May 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28506361/igg4-related-disease-and-the-liver
#7
REVIEW
Jonathan H Chen, Vikram Deshpande
Pathologists are likely to encounter IgG4-related disease in several organ systems. This article focuses on helping pathologists diagnose IgG4-related disease in the hepatobiliary system. Missing the diagnosis can result in unnecessary organ damage and/or unnecessary surgical and cancer therapy. In the liver, tumefactive lesion(s) involving the bile ducts with storiform fibrosis and an IgG4-enriched lymphoplasmacytic infiltrate are highly concerning for IgG4-related disease. The recent identification of oligoclonal populations of T cells and B cells in IgG4-related disease may lead to molecular tests, new therapeutics, and a greater mechanistic understanding of the disease...
June 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28504959/casticin-attenuates-liver-fibrosis-and-hepatic-stellate-cell-activation-by-blocking-tgf-%C3%AE-smad-signaling-pathway
#8
Ling Zhou, Xiaoying Dong, Linlin Wang, Lanlan Shan, Ting Li, Wanfu Xu, Yan Ding, Mingqiang Lai, Xiaojun Lin, Meng Dai, Xiaochun Bai, Chunhong Jia, Hang Zheng
Although many advances have been made in understanding the pathogenesis of liver fibrosis, few options are available for treatment. Casticin, one of the major flavonoids in Fructus Viticis extracts, has shown hepatoprotective potential, but its effects on liver fibrosis are not clear. In this study, we investigated the antifibrotic activity of casticin and its underlying mechanism in vivo and in vitro. Male mice were injected intraperitoneally with carbon tetrachloride (CCl4) or underwent bile duct ligation (BDL) to induce liver fibrosis, followed by treatment with casticin or vehicle...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28501004/adipose-derived-mesenchymal-stem-cells-slow-disease-progression-of-acute-on-chronic-liver-failure
#9
Carlos Gilsanz, Maria-Angeles Aller, Sherezade Fuentes-Julian, Isabel Prieto, Alejandro Blázquez-Martinez, Salvador Argudo, Jorge Fernández-Delgado, Jose Beleña, Jaime Arias, María P De Miguel
A serious complication of chronic hepatic insufficiency is acute-on-chronic liver failure, a recognized syndrome characterized by acute decompensation of cirrhosis and organ/system failure. We investigated the use of adipose-derived mesenchymal stem cells (AD-MSCs) in an experimental model of acute-on-chronic liver failure, developed by microsurgical extrahepatic cholestasis in rats. Rats undergoing microsurgical extrahepatic cholestasis were treated by intraparenchymal liver injection of human or rat AD-MSCs, undifferentiated or previously differentiated in vitro toward the hepatocyte lineage...
May 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28500662/application-of-a-novel-bioreactor-for-in-vivo-engineering-of-pancreas-tissue
#10
Hashemi Javad, Pasalar Parvin, Soleimani Masoud, Khorramirouz Reza, Fendereski Kiarad, Enderami Seyed Ehsan, Kajbafzadeh Abdol-Mohammad
Type 1 diabetes is characterized by autoimmune destruction of pancreatic cells. Organ transplantation is an acceptable treatment for native organ failure. However, it is associated with several problems due to a number of reasons, such as the lack of appropriate donors and immunosuppression. In our present study, a novel model is presented for in vivo recellularization of acellular pancreas by implanting between the host pancreas and the adjacent omental flap. In this study, the pancreases were harvested and cannulated via the common bile duct and then, the scaffolds were acellularized by a detergent-based protocol...
May 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28496142/src-homology-protein-tyrosine-phosphatase-1-agonist-sc-43-reduces-liver-fibrosis
#11
Tung-Hung Su, Chung-Wai Shiau, Ping Jao, Nian-Jie Yang, Wei-Tien Tai, Chun-Jen Liu, Tai-Chung Tseng, Hung-Chih Yang, Chen-Hua Liu, Kai-Wen Huang, Ting-Chen Hu, Yu-Jen Huang, Yao-Ming Wu, Li-Ju Chen, Pei-Jer Chen, Ding-Shinn Chen, Kuen-Feng Chen, Jia-Horng Kao
This study aimed to investigate the role of src-homology protein tyrosine phosphatase-1 (SHP-1)-signal transducer and activator of transcription 3 (STAT3) pathway in liver fibrogenesis and the anti-fibrotic effect of SHP-1 agonist. The antifibrotic activity of SC-43, a sorafenib derivative with an enhanced SHP-1 activity, was evaluated in two fibrosis mouse models by carbon tetrachloride induction and bile duct ligation. Rat, human, and primary mouse hepatic stellate cells (HSCs) were used for mechanistic investigations...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28494557/-clinicopathologic-features-of-drug-induced-vanishing-bile-duct-syndrome
#12
L H Ye, C K Wang, H C Zhang, Z Q Liu, H W Zheng
Vanishing bile duct syndrome (VBDS) manifests as progressive destruction and disappearance of the intrahepatic bile duct caused by various factors and cholestasis. VBDS associated with drug-induced liver injury (D-VBDS) is an important etiology of VBDS, and immune disorder or immune imbalance may be the main pathogenesis. According to its clinical symptoms, serological markers, and course of the disease, D-VBDS is classified into major form and minor form, and its clinical features are based on various pathomorphological findings...
April 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28487049/liver-cirrhosis-reversion-is-improved-in-hamsters-with-a-neurointermediate-pituitary-lobectomy
#13
A Quintanar-Stephano, J Ventura-Juárez, E Sánchez-Alemán, L R Aldaba-Muruato, D Cervantes-García, D Gonzalez-Blas, M H Muñoz-Ortega
Regulating mechanisms of fibrosis is an important goal in the treatment of fibrosis and liver cirrhosis. The role of arginine vasopressin (AVP) in promoting fibrosis in several organs has been well documented. However, the result of an AVP deficiency during liver fibrosis has not been reported. We herein study the effects of an AVP deficiency, which was induced by neurointermediate pituitary lobectomy (NIL), on liver cirrhosis and liver cirrhosis reversion. Hamsters were intact (control) or underwent CCl4-induced cirrhosis, the latter animals divided into four groups: Cirrhotic, NIL-cirrhotic, Cirrhotic-reversion (R) and NIL-cirrhotic-R...
May 7, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28473062/coffee-consumption-prevents-fibrosis-in-a-rat-model-that-mimics-secondary-biliary-cirrhosis-in-humans
#14
Jonathan Arauz, Natanael Zarco, Erika Hernández-Aquino, Marina Galicia-Moreno, Liliana Favari, José Segovia, Pablo Muriel
Investigations demonstrated that oxidative stress plays an important role in injury promotion in cholestatic liver disease. We hypothesized that coffee attenuates cholestasis-induced hepatic necrosis and fibrosis via its antioxidant, anti-inflammatory, and antifibrotic properties. The major aim of this study was to evaluate the hepatoprotective properties of coffee and caffeine in a model of chronic bile duct ligation (BDL) in male Wistar rats. Liver injury was induced by 28-day BDL, and conventional coffee, decaffeinated coffee, or caffeine was administered daily...
April 2017: Nutrition Research
https://www.readbyqxmd.com/read/28463600/imaging-of-abdominal-and-pelvic-manifestations-of-graft-versus-host-disease-after-hematopoietic-stem-cell-transplant
#15
Meghan G Lubner, Christine O Menias, Michelle Agrons, Kinan Alhalabi, Venkata S Katabathina, Khaled M Elsayes, Perry J Pickhardt
OBJECTIVE: Graft-versus-host disease (GVHD) is a common complication of hematopoietic stem cell transplant (HSCT). GVHD predominantly affects the skin, gastrointestinal system and hepatobiliary systems. Imaging findings in the gastrointestinal tract include bowel wall thickening with mucosal enhancement, mesenteric edema, and vascular engorgement. In the hepatobiliary system, hepatosplenomegaly, periportal edema, bile duct dilatation, and gallbladder and biliary wall thickening are seen...
May 2, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28458597/gastrointestinal-involvement-of-recurrent-renal-cell-carcinoma-ct-findings-and-clinicopathologic-features
#16
Hyo Jung Park, Hyun Jin Kim, Seong Ho Park, Jong Seok Lee, Ah Young Kim, Hyun Kwon Ha
OBJECTIVE: To retrospectively evaluate the CT findings and clinicopathologic features in patients with gastrointestinal (GI) involvement of recurrent renal cell carcinoma (RCC). MATERIALS AND METHODS: The medical records were reviewed for 15 patients with 19 pathologically proven GI tract metastases of RCC. The CT findings were analyzed to determine the involved sites and type of involvement; lesion size, morphology, and contrast enhancement pattern; and occurrence of lymphadenopathy, ascites and other complications...
May 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28457378/electrospun-polyhydroxyethyl-aspartamide-polylactic-acid-scaffold-for-biliary-duct-repair-a-preliminary-in%C3%A2-vivo-evaluation
#17
S Buscemi, G Damiano, S Fazzotta, A Maffongelli, V D Palumbo, S Ficarella, C Fiorica, G Cassata, M Licciardi, F S Palumbo, L Gulotta, G Buscemi, A I Lo Monte
Tissue engineering has emerged as a new approach with the potential to overcome the limitations of traditional therapies. The objective of this study was to test whether our polymeric scaffold is able to resist the corrosive action of bile and to support a cell's infiltration and neoangiogenesis with the aim of using it as a biodegradable tissue substitute for serious bile duct injuries. In particular, a resorbable electrospun polyhydroxyethyl-aspartamide-polylactic acid (90 mol% PHEA, 10 mol% PLA)/polycaprolactone (50:50 w/w) plate scaffold was implanted into rabbit gallbladder to assess the in vivo effects of the lytic action of the bile on the scaffold structure and then as a tubular scaffold to create a biliary-digestive anastomosis as well...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28454463/reduced-ebp50-expression-levels-are-correlated-with-unfavorable-clinicopathological-features-of-extrahepatic-bile-duct-carcinoma-and-promote-the-proliferation-and-migration-of-qbc939-cells
#18
Duiping Feng, Ying Xiong, Zhiqiang Peng, Qiang Ma, Tao Tao, Hua Liu, Jianfang Liang, Zhigang Wei, Junfang Zheng, Lei Wang, Hui Zhang
The present study aimed to clarify the association between ezrin-radixin-moesin-binding phosphoprotein-50 (EBP50) expression level and the tumor phenotype and clinicopathological features of extrahepatic bile duct carcinoma. Tissue samples from patients with extrahepatic bile duct carcinoma (54 cases) and patients with normal bile duct epithelia from gallbladder of cholecystitis (20 cases) were collected, and immunohistochemical staining was used to detect the expression levels of EBP50 in these tissues. In addition, small interfering (si)RNA-EBP50 was used to knock down the expression of EBP50 in the QBC939 human cholangiocarcinoma (CC) cell line...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454273/repurposing-cimetidine-for-cholangiocarcinoma-antitumor-effects-in-vitro-and-in-vivo
#19
Paweena Dana, Kulthida Vaeteewoottacharn, Ryusho Kariya, Kouki Matsuda, Sopit Wongkham, Seiji Okada
Cimetidine is a histamine type-2 (H2) receptor antagonist that has been demonstrated to have antitumor effects on various types of malignancy. However, its effect on cholangiocarcinoma (CCA), a chemotherapy-resistant bile duct tumor, has yet to be investigated. In the present study, the antitumor activity of cimetidine in vitro and in vivo was evaluated. A methylthiotetrazole assay revealed that the proliferation of certain CCA cell lines was inhibited by cimetidine, which induced the caspase-dependent apoptosis of CCA cells via suppression of the protein kinase B signaling pathway...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28452094/imaging-characteristics-of-liver-langerhans-cell-histiocytosis-in-children
#20
Hui Liu, Xueying Long, Xiaoyi Wang, Wenzheng Li, Yigang Pei
BACKGROUND: Hepatic involvement of Langerhans cell histiocytosis (LCH) in children is important not only for prognostic purposes, but also as a guide for therapeutic strategies. The purpose of this study was to evaluate the imaging characteristics of hepatic LCH by computed tomography (CT) and magnetic resonance imaging (MRI) in children. METHODS: Imaging features of 17 children with hepatic LCH diagnosed by physical examination, laboratory and histopathological tests were analyzed retrospectively...
April 28, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
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