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https://www.readbyqxmd.com/read/29150960/epithelial-cell-adhesion-molecule-fragments-and-signaling-in-primary-human-liver-cells
#1
Jörg C Gerlach, Hubert G Foka, Robert L Thompson, Bruno Gridelli, Eva Schmelzer
Epithelial Cell Adhesion Molecule (EpCAM), or CD326, is a trans-membrane glycoprotein expressed by multiple normal epithelia as well as carcinoma. Human hepatic stem cells and bile duct epithelium of the liver are EpCAM positive. In tumor cell lines, its intracellular domain can be released after cleavage of the extracellular domain. Within the cell nucleus it induces cell proliferation, but cleavage depends on cell contact. Fragments of various lengths have been described in tumor cells. Despite of its described important role in proliferation in tumor cells, there is not much known about the expression and role of EpCAM fragments in primary human liver cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29147441/intrahepatic-biliary-metastasis-of-colonic-adenocarcinoma-a-case-report-with-immunohistochemical-analysis
#2
Keisuke Kawashima, Naoki Watanabe, Sho Tawada, Takahito Adachi, Makoto Yamada, Yusuke Kitoh, Tamotsu Takeuchi, Takuji Tanaka
Although intrabiliary metastasis of carcinoma in the liver is unusual, intraductal and/or intraepithelial spread of cancer cells along intrahepatic bile ducts is now well recognized as hepatic metastasis. However, several clinical and laboratory findings, including images, lead us to differentially diagnose from primary intrahepatic cholangiocarcinoma. We report here on a case of colonic adenocarcinoma that metastasized to the liver with spread along with the intrahepatic bile duct of S5/6 area. The patient was a 51-year-old man and clinically diagnosed liver metastasis of sigmoid colon cancer (tub2, pMP, ly1, v0, n0), which was diagnosed and treated by sigmoidectomy 7 years ago...
June 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29141455/methionine-adenosyltransferases-in-cancers-mechanisms-of-dysregulation-and-implications-for-therapy
#3
Lauren Y Maldonado, Diana Arsene, José M Mato, Shelly C Lu
Methionine adenosyltransferase genes encode enzymes responsible for the biosynthesis of S-adenosylmethionine, the principal biological methyl donor and precursor of polyamines and glutathione. Mammalian cells express three genes - MAT1A, MAT2A, and MAT2B - with distinct expression and functions. MAT1A is mainly expressed in the liver and maintains the differentiated states of both hepatocytes and bile duct epithelial cells. Conversely, MAT2A and MAT2B are widely distributed in non-parenchymal cells of the liver and extrahepatic tissues...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29140850/hepatocellular-carcinoma-with-bile-duct-tumor-thrombus-extrahepatic-bile-duct-preserving-or-not-reply
#4
Kiyoshi Hasegawa, Satoshi Yamamoto, Yousuke Inoue, Junichi Shindoh, Taku Aoki, Yoshihiro Sakamoto, Yasuhiko Sugawara, Norihiro Kokudo, Masatoshi Makuuchi
No abstract text is available yet for this article.
December 2017: Annals of Surgery
https://www.readbyqxmd.com/read/29118690/pneumoperitoneum-after-endoscopic-retrograde-cholangiopancreatography-due-to-rupture-of-intrahepatic-bile-ducts-and-glisson-s-capsule-in-hepatic-metastasis-a-case-report-and-review-of-literature
#5
Zubair Khan, Umar Darr, Mohamad Nawras, Muhammad Bawany, Jacob Bieszczad, Osama Alaradi, Ali Nawras
Introduction: Endoscopic retrograde cholangiopancreatography (ERCP) has been proven to be a safe and effective method for diagnosis and treatment of biliary and pancreatic disorders. Major complications of ERCP include pancreatitis, hemorrhage, cholangitis, and duodenal perforation. We report a third case in literature of pneumoperitoneum after ERCP due to rupture of intrahepatic bile ducts and Glisson's capsule in a peripheral hepatic lesion. Case Report: A 50-year-old male with a history of metastatic pancreatic neuroendocrine tumor and who had a partially covered metallic stent placed in the biliary tree 1 year ago presented to the oncology clinic with fatigue, abdominal pain, and hypotension...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29118686/hepatectomy-for-hilar-cholangiocarcinoma-with-right-sided-ligamentum-teres-using-a-hepatectomy-simulation-system
#6
Seikan Hai, Etsuro Hatano, Tadamichi Hirano, Yasukane Asano, Kazuhiro Suzumura, Hideaki Sueoka, Jiro Fujimoto
Right-sided ligamentum teres (RSLT) is a rare congenital anomaly often accompanied by variation of the hepatic vasculature. We herein report a surgical case of a hilar cholangiocarcinoma with RSLT in whom preoperative hepatectomy simulation proved useful for understanding the anatomical structure of the liver. A 78-year-old male with obstructive jaundice was referred to our department for further examination. The patient was suspected of having a hilar cholangiocarcinoma originating from the left hepatic bile duct by contrast-enhanced computed tomography (CT), and CT also showed right umbilical portion (RUP)...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29114851/biweekly-cisplatin-and-gemcitabine-in-patients-advanced-biliary-tract-cancer
#7
Daniel H Ahn, Josh Reardon, Chul W Ahn, Manojkumar Bupathi, Sameh Mikhail, Christina Sing-Ying Wu, Tanios Bekaii-Saab
Treatment with cisplatin with gemcitabine (CG) demonstrates a survival benefit in patients with advanced biliary tract cancer (ABTC). However, the weekly administration can add significant toxicities that may prohibit prolonged treatment. Based on previous studies, we implemented a modified biweekly regimen of GC in an attempt to optimize the prescribed regimen with an improved toxicity profile, added convenience to patients while maintaining efficacy. Patients with ABTC were treated with fixed dose rate (FDR) gemcitabine (1000mg/m(2) /min) and cisplatin 20mg/m(2) on days 1 and 15 of every 28-day cycle...
November 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29110582/establishment-of-cholangiocarcinoma-cell-lines-from-patients-in-the-endemic-area-of-liver-fluke-infection-in-thailand
#8
Sunitta Saensa-Ard, Saman Leuangwattanawanit, Laddawan Senggunprai, Nisana Namwat, Sarinya Kongpetch, Yaovalux Chamgramol, Watcharin Loilome, Walaiporn Khansaard, Apinya Jusakul, Auemduan Prawan, Chawalit Pairojkul, Narong Khantikeo, Puangrat Yongvanit, Veerapol Kukongviriyapan
Cholangiocarcinoma is a rare type of cancer which is an increasingly discernible health threat. The disease is usually very difficult in diagnosis and various treatment modalities are typically not effective. Cholangiocarcinoma is a complex and very heterogeneous malignancy characterized by tumor location, different risk factors, molecular profiling, and prognosis. Cancer cell lines represent an important tool for investigation in various aspects of tumor biology and molecular therapeutics. We established two cell lines, KKU-452 and KKU-023, which were derived from patients residing in the endemic area of liver fluke infection in Thailand...
November 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29107934/the-clinical-significance-and-biological-function-of-interferon-regulatory-factor-1-in-cholangiocarcinoma
#9
Peiqi Wan, Junhong Zhang, Qiang Du, David A Geller
Interferon regulatory factor 1 (IRF1) has been suggested to act as a tumor suppressor in human cancers. However, the clinical significance and biological function of IRF1 in cholangiocarcinoma is poorly understood. In our results, IRF1 mRNA and protein expressions were decreased in cholangiocarcinoma tissues and cell lines compared with paired normal hepatic tissues and intrahepatic bile duct epithelial cell line. IRF1 protein low-expression was associated with tumor stage, tumor size, vascular invasion and metastasis and served as a poor independent prognostic parameter in cholangiocarcinoma patients...
November 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29103773/kras-mutation-and-immunohistochemical-profile-in-intraductal-papillary-neoplasm-of-the-intrahepatic-bile-ducts
#10
Zhi-Hong Xian, Chun Qin, Wen-Ming Cong
Intraductal papillary neoplasm of bile duct (IPNB) is characterized by a spectrum of diseases ranging from low-grade intraepithelial neoplasia to invasive carcinoma. In the present study, we aimed to investigate immunophenotypic features and KRAS mutations in relation to pathological subtypes and grades in Chinese patients with IPNBs. A total of 46 patients with IPNBs and 11 invasive adenocarcinomas arising in IPNBs (invasive IPNBs) were enrolled and clinicopathological data were analyzed. It was found that CK7 was expressed in 42 of the 46 neoplastic lesions...
October 18, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29098752/hemobilia-immediately-after-transcatheter-arterial-chemoembolization-using-drug-eluting-beads-for-hepatocellular-carcinoma-with-intrahepatic-bile-duct-invasion
#11
Maiko Nishi, Issei Saeki, Takahiro Yamasaki, Masaki Maeda, Takuro Hisanaga, Takuya Iwamoto, Toshihiko Matsumoto, Isao Hidaka, Tsuyoshi Ishikawa, Taro Takami, Isao Sakaida
Transcatheter arterial chemoembolization (TACE) is used as a palliative treatment for unresectable hepatocellular carcinoma (HCC) worldwide. Recently, a novel drug delivery-embolic agent, the drug-eluting bead (DEB), was introduced for TACE. There are a few reports of tumor hemorrhage after TACE using DEB (DEB-TACE) for HCC. However, there have not been any reports of hemobilia immediately after DEB-TACE for an HCC with intrahepatic bile duct invasion. Here, the first such case is reported. A 71-year-old woman was admitted to our hospital to undergo DEB-TACE for multiple HCCs with worsening left intrahepatic bile duct dilatation...
November 2, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/29079176/t-complex-associated-testis-expressed-3-tcte3-is-a-novel-marker-for-pancreatobiliary-carcinomas
#12
Chaohui Lisa Zhao, Yiang Hui, Li Juan Wang, Kara Lombardo, Dongfang Yang, Shamlal Mangray, Evgeny Yakirevich, Ali Amin, Chiung-Kuei Huang, Shaolei Lu
Several markers of pancreatobiliary lineage have been described in the literature. However, none have demonstrated sufficient specificity and sensitivity to warrant diagnostic use. We evaluated the utility of T-complex-associated-testis-expressed 3 (TCTE3) as a pancreatobiliary marker. A set of 247 adenocarcinomas from the gastrointestinal (GI) tract was identified including 18 from the gastroesophageal junction (GEJ), 29 stomach, 17 ampullary, 62 pancreatic, and 16 common bile duct and gallbladder (CBD/GB), 13 non-ampullary small intestine, 32 colon, and 24 rectum...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29067113/photodynamic-therapy-for-biliary-tract-organ-via-a-novel-ultra-small-composite-optical-fiberscope
#13
Kazuhiko Kasuya, Kiyoshi Oka, Ryoko Soya, Takaaki Tsuchiya, Takao Itoi, Akihiko Tsuchida
Photodynamic therapy (PDT) is a method used treat tumors via utilizing photodynamic reactions between photosensitive substances with tumor affinity and lasers. For overall bile duct cancers, PDT has been demonstrated to resolve stenosis and improve prognosis; however, when limited to intrahepatic bile duct cancers, modifications to the laser irradiation are necessary as surrounding hepatocytes incorporate a large amount of photosensitive substances. Furthermore, the intrahepatic bile duct is thin, and a guide sheath and thin fiber are necessary to transport laser irradiation probes to the target region...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29063951/-biliary-tract-cancers-molecular-characterization-and-identification-of-novel-prognostic-markers
#14
REVIEW
B Goeppert
BACKGROUND: Bile duct cancers (BTCs) are highly aggressive tumors with a dismal prognosis and an increasing incidence. BTC is a tumorbiologically and clinically heterogeneous tumor group and can be subdivided according to anatomical aspects into intrahepatic cholangiocarcinomas (iCCA), extrahepatic cholangiocarcinomas (eCCA) and gallbladder carcinomas (GBC). NEW THERAPY OPTIONS: Chronic inflammatory processes of the biliary system seem to play a role in the development of these tumors...
October 24, 2017: Der Pathologe
https://www.readbyqxmd.com/read/29056698/correlation-between-preoperative-ultrasonographic-findings-and-clinical-intraoperative-cytopathological-and-histopathological-diagnosis-of-acute-abdomen-syndrome-in-50-dogs-and-cats
#15
Ahmed Abdellatif, Martin Kramer, Klaus Failing, Kerstin von Pückler
Acute abdomen syndrome is an emergency in small animal practice that requires rapid diagnosis to determine the appropriate treatment. No studies have correlated the preoperative abdominal ultrasonography (US) findings with the clinical, surgical, cytopathologic, and histopathologic findings. This retrospective study was designed to evaluate abdominal US in the diagnosis of acute abdomen syndrome using surgery as a "criterion standard". The most frequently misinterpreted lesions with US were also identified...
August 8, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29049401/risk-factors-for-intrahepatic-and-extrahepatic-cholangiocarcinoma-in-the-united-states-a-population-based-study-in-seer-medicare
#16
Jessica L Petrick, Baiyu Yang, Sean F Altekruse, Alison L Van Dyke, Jill Koshiol, Barry I Graubard, Katherine A McGlynn
OBJECTIVES: Intrahepatic (ICC) and extrahepatic (ECC) cholangiocarcinomas are rare tumors that arise from the epithelial cells of the bile ducts, and the etiology of both cancer types is poorly understood. Thus, we utilized the Surveillance, Epidemiology, and End Results (SEER)-Medicare resource to examine risk factors and novel preexisting medical conditions that may be associated with these cancer types. METHODS: Between 2000 and 2011, 2,092 ICC and 2,981 ECC cases and 323,615 controls were identified using the SEER-Medicare database...
2017: PloS One
https://www.readbyqxmd.com/read/29040981/abdominal-ultrasound-findings-of-tumor-forming-hepatic-malignant-lymphoma
#17
Shogo Kitahata, Atsushi Hiraoka, Masatoshi Kudo, Taisei Murakami, Marie Ochi, Hirofumi Izumoto, Hidetaro Ueki, Miho Kaneto, Toshihiko Aibiki, Tomonari Okudaira, Hiroka Yamago, Yuji Miyamoto, Ryuichiro Iwasaki, Hideomi Tomida, Kenichiro Mori, Masato Kishida, Hideki Miyata, Eiji Tsubouchi, Masashi Hirooka, Yohei Koizumi, Tomoyuki Ninomiya, Yoichi Hiasa, Kojiro Michitaka
AIM/BACKGROUND: Evaluations of abdominal ultrasonography (US) findings of primary and secondary tumor-forming hepatic malignant lymphoma (HML) have not been adequately reported. In this study, we elucidated US and contrast-enhanced US (CEUS) findings in patients with HML. MATERIALS/METHODS: From January 2006 to March 2017, 25 patients with HML were enrolled (primary 7, secondary 18), each of whom was diagnosed pathologically. They were divided into 2 groups based on tumor diameter (cutoff, 30 mm)...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/29039079/a-long-term-survivor-of-hilar-cholangiocarcinoma-with-resection-of-recurrent-peritoneal-dissemination-after-r0-surgery-a-case-report
#18
Tatsunori Miyata, Hirohisa Okabe, Akira Chikamoto, Takanobu Yamao, Naoki Umezaki, Masayo Tsukamoto, Yuki Kitano, Kota Arima, Shigeki Nakagawa, Katsunori Imai, Daisuke Hashimoto, Yo-Ichi Yamashita, Hideo Baba
BACKGROUND: Although hilar cholangiocarcinoma (HCCA) has a very poor prognosis, there are cases in which long-term survival is rarely obtained by multidisciplinary treatment. CASE PRESENTATION: A 61-year-old man diagnosed with HCCA was referred to our hospital. We performed an extended left hemi-hepatectomy and caudate lobectomy with extrahepatic bile duct resection. The tumor stage was T2aN0M0, stage II, based on the TNM classification, seventh edition. R0 resection was successfully performed...
October 16, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/29034817/enhanced-cytotoxic-activity-of-effector-t-cells-against-cholangiocarcinoma-by-dendritic-cells-pulsed-with-pooled-mrna
#19
Mutita Junking, Janya Grainok, Chutamas Thepmalee, Sopit Wongkham, Pa-Thai Yenchitsomanus
Cholangiocarcinoma is a malignancy of bile duct epithelia with an increasing in incidence rate worldwide. Surgery is the only curative treatment, while adjuvant chemotherapy and radiotherapy render poor responses. Cell-based immunotherapy is a potential strategy for cholangiocarcinoma treatment. However, variation of tumor antigens in cholangiocarcinoma leads to the ineffectiveness of cell-based immunotherapy. In this study, we examined the activation of effector T-cells by dendritic cells pulsed with protein lysate or total RNA from cholangiocarcinoma cell lines for their cytolytic activity against cholangiocarcinoma...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28984361/contrast-enhanced-ultrasound-examination-of-the-gallbladder-and-bile-ducts-a-pictorial-essay
#20
Demosthenes D Cokkinos, Eleni G Antypa, Sofia Tsolaki, Maria Skylakaki, Alkmini Skoura, Vassiliki Mellou, Ioannis Kalogeropoulos
The gallbladder and bile ducts are usually assessed initially with conventional gray-scale ultrasound (US). Contrast enhanced US (CEUS) is used when a diagnosis cannot be reached with conventional US. CEUS is easy to learn and perform. US contrast agents can be safely administered in patients with renal function impairment. In this pictorial essay the physics, examination technique and indications of CEUS for examining the gallbladder and bile ducts are reviewed. Gallbladder indications include elucidating normal variants, differentiating sludge from neoplastic lesions, benign and malignant pathology, infection, wall rupture and hemobilia...
October 6, 2017: Journal of Clinical Ultrasound: JCU
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