Read by QxMD icon Read


Kurt A Zimmerman, Cheng Jack Song, Nancy Gonzalez-Mize, Zhang Li, Bradley K Yoder
Hepatorenal fibrocystic disease (HRFCD) is characterized by cysts in the kidney and liver with associated fibrosis and is the result of defects in proteins required for cilia function or assembly. Previous reports indicate that macrophages, mainly M2-like macrophages, contribute to HRFCD, although the origin (yolk-sac derived resident macrophages vs bone-marrow derived infiltrating macrophages) and contribution of these cells to the observed phenotypes is unknown. Herein, we utilize a congenital model of cilia dysfunction (IFT88Orpk ) to study the importance of macrophages in HRFCD...
March 15, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
Alexander Raven, Wei-Yu Lu, Tak Yung Man, Sofia Ferreira-Gonzalez, Eoghan O'Duibhir, Benjamin J Dwyer, John P Thomson, Richard R Meehan, Roman Bogorad, Victor Koteliansky, Yuri Kotelevtsev, Charles Ffrench-Constant, Luke Boulter, Stuart J Forbes
This corrects the article DOI: 10.1038/nature23015.
March 14, 2018: Nature
Andrey Elchaninov, Timur Fatkhudinov, Natalia Usman, Irina Arutyunyan, Andrey Makarov, Anastasia Lokhonina, Irina Eremina, Viktor Surovtsev, Dmitry Goldshtein, Galina Bolshakova, Valeria Glinkina, Gennady Sukhikh
AIM: To investigate the influence of the umbilical cord-derived multipotent stromal cells (MSCs) on recovery of the liver after the subtotal resection, that is, removal of 80% of the organ mass, a renowned model of the small-for-size liver remnant syndrome. METHODS: The MSCs were obtained from the intervascular tissue of umbilical cords, dissected from rat fetuses, by the explant culture technique. The vital labeling of MSCs with РКН26 was carried out on the 3rd passage...
February 27, 2018: World Journal of Hepatology
Yi Shi, Jianfeng Bai, Shuwei Guo, Jiandong Wang
Intrahepatic cholangiocarcinoma (ICC) is an aggressive malignancy of the bile duct, representing the second most common primary liver cancer. Wntless (Wls) is a highly conserved transmembrane protein that shuttles palmitoylated Wnt proteins from the endoplasmic reticulum to the plasma membrane. Wls is highly expressed in various types of cancers and is essential for cell proliferation, anti-apoptotic activity, and survival. The profile of Wls expression and its clinical significance has not been well clarified in ICC...
2018: Tohoku Journal of Experimental Medicine
Sofia Ferreira-Gonzalez, Wei-Yu Lu, Alexander Raven, Benjamin Dwyer, Tak Yung Man, Eoghan O'Duibhir, Philip J Starkey Lewis, Lara Campana, Tim J Kendall, Thomas G Bird, Nuria Tarrats, Juan-Carlos Acosta, Luke Boulter, Stuart J Forbes
Cellular senescence is a mechanism that provides an irreversible barrier to cell cycle progression to prevent undesired proliferation. However, under pathological circumstances, senescence can adversely affect organ function, viability and regeneration. We have developed a mouse model of biliary senescence, based on the conditional deletion of Mdm2 in bile ducts under the control of the Krt19 promoter, that exhibits features of biliary disease. Here we report that senescent cholangiocytes induce profound alterations in the cellular and signalling microenvironment, with recruitment of myofibroblasts and macrophages causing collagen deposition, TGFβ production and induction of senescence in surrounding cholangiocytes and hepatocytes...
March 9, 2018: Nature Communications
Francesca Maione, Nicholas Gilbo, Silvia Lazzaro, Peter Friend, Giovanni Camussi, Renato Romagnoli, Jacques Pirenne, Ina Jochmans, Diethard Monbaliu
BACKGROUND: Understanding ischemia reperfusion injury (IRI) is essential to further improve outcomes after liver transplantation (LT). Porcine isolated liver perfusion (ILP) is increasingly used to reproduce LT-associated IRI in a strictly controlled environment. However, whether ILP is a reliable substitute of LT was never validated. METHODS: We systematically reviewed the current experimental set-ups for ILP and parameters of interest reflecting IRI. RESULTS: ILP was never compared to transplantation in animals...
March 5, 2018: Transplantation
Cinthya Santos Cirqueira, Aloisio Sousa Felipe-Silva, Alda Wakamatsu, Lidiane Vieira Marins, Eziel Cavalcanti Rocha, Evandro Sobroza de Mello, Venâncio Avancini Ferreira Alves
Multidrug resistance-associated protein 2 (MRP2) is a multi-specific organic anion transporter predominantly expressed in the canalicular membrane of hepatocytes, epithelial cells from gallbladder and apical membranes of proximal tubular kidney epithelium whereas multidrug resistance-associated protein 3 (MRP3) is present in the basolateral membrane of hepatocytes and cholangiocytes. This study aims to detect the expression of these transporters in hepatocellular carcinoma (HCC) and in cholangiocarcinoma (CC), searching for evidences for future studies on differential diagnosis and on clinical essays...
February 20, 2018: Pathology Oncology Research: POR
Yoshimasa Saito, Toshiaki Nakaoka, Toshihide Muramatsu, Hidenori Ojima, Aoi Sukeda, Yuko Sugiyama, Ryoei Uchida, Ryo Furukawa, Aya Kitahara, Toshiro Sato, Yae Kanai, Hidetsugu Saito
Intrahepatic cholangiocarcinoma (IHCC) is a highly aggressive malignancy with a poor prognosis. It is thought to originate from cholangiocytes, which are the component cells of intrahepatic bile ducts. However, as patients with viral hepatitis often develop IHCC, it has been suggested that transformed hepatocytes may play a role in IHCC development. To investigate whether IHCC cells can be converted to functional hepatocytes, we established organoids derived from human IHCC and cultured them under conditions suitable for hepatocyte differentiation...
February 12, 2018: Scientific Reports
Xiang Jiang, Min Lian, Yanmei Li, Weici Zhang, Qixia Wang, Yiran Wei, Jun Zhang, Weihua Chen, Xiao Xiao, Qi Miao, Zhaolian Bian, Dekai Qiu, Jingyuan Fang, Aftab A Ansari, Patrick S C Leung, Ross L Coppel, Ruqi Tang, M Eric Gershwin, Xiong Ma
Mucosal-associated invariant T (MAIT) cells are novel innate-like T cells constituting a significant proportion of circulating and hepatic T cells. Herein, we extensively examine the phenotypical and functional alterations of MAIT cells and their regulation in a cohort of 56 patients with Primary Biliary Cholangitis (PBC) and 53 healthy controls (HC). Additionally alterations of MAIT cells were assessed before and after UDCA treatment. Finally the localization of MAIT cell in liver was examined using specific tetramer staining and the underlying mechanisms of these alterations in PBC were explored...
February 8, 2018: Journal of Autoimmunity
Xiaojiaoyang Li, Runping Liu, Zhiming Huang, Emily C Gurley, Xuan Wang, Juan Wang, Hongliang He, Hu Yang, Guanhua Lai, Luyong Zhang, Jasmohan S Bajaj, Melanie White, William M Pandak, Phillip B Hylemon, Huiping Zhou
Cholestatic liver injury is an important clinical problem with limited understanding of disease pathologies. Exosomes are small extracellular vesicles released by a variety of cells including cholangiocytes. Exosome-mediated cell-cell communication can modulate various cellular functions by transferring a variety of intracellular components to target cells. Our recent studies indicate that the long non-coding RNA H19 is mainly expressed in cholangiocytes and its aberrant expression is associated with significant down-regulation of small heterodimer partner (SHP) in hepatocytes and cholestatic liver injury in multidrug resistance 2 knockout (Mdr2-/- ) mice...
February 9, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Adrian P Mansini, Maria J Lorenzo Pisarello, Kristen M Thelen, Maetzin Cruz-Reyes, Estanislao Peixoto, Sujeong Jin, Brynn N Howard, Christy E Trussoni, Gabriella B Gajdos, Nicholas F LaRusso, Maria J Perugorria, Jesus M Banales, Sergio A Gradilone
Cholangiocytes normally express primary cilia, a multisensory organelle that detects signals from the cellular environment. Cilia are significantly reduced in cholangiocarcinoma (CCA) by a mechanism involving overexpression of histone deacetylase 6 (HDAC6). Despite HDAC6 overexpression in CCA, we found no differences in its mRNA level, suggesting a post-transcriptional regulation, possibly involving miRNAs. Here we describe that at least two HDAC6-targeting miRNAs, miR-433 and miR-22, are downregulated in CCA both in vitro and in vivo...
February 6, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Ran-Ran Zhang, Yun-Wen Zheng, Bin Li, Yun-Zhong Nie, Yasuharu Ueno, Tomonori Tsuchida, Hideki Taniguchi
BACKGROUND: Mature human hepatocytes are critical in preclinical research and therapy for liver disease, but are difficult to manipulate and expand in vitro. Hepatic stem cells (HpSCs) may be an alternative source of functional hepatocytes for cell therapy and disease modeling. Since these cells play an import role in regenerative medicine, the precise characterization that determines specific markers used to isolate these cells as well as whether they contribute to liver regeneration still remain to be shown...
February 5, 2018: Stem Cell Research & Therapy
Tea Soini, Marjut Pihlajoki, Noora Andersson, Jouko Lohi, Kari A Huppert, David A Rudnick, Stacey S Huppert, David B Wilson, Mikko P Pakarinen, Markku Heikinheimo
Biliary atresia (BA), a neonatal liver disease, is characterized by obstruction of extrahepatic bile ducts with subsequent cholestasis, inflammation, and progressive liver fibrosis. To gain insights into the pathophysiology of BA, we focused attention on GATA6, a transcription factor implicated in biliary development. Early in fetal development GATA6 expression is evident in cholangiocytes and hepatocytes, but by late gestation it is extinguished in hepatocytes. Utilizing a unique set of BA liver samples collected before and after successful portoenterostomy (PE), we found that GATA6 expression is markedly upregulated in hepatocytes of patients with BA compared to healthy and cholestatic disease controls...
February 1, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
Maria Lorenzo Pisarello, Tatyana V Masyuk, Sergio A Gradilone, Anatoliy I Masyuk, Jingyi Francess Ding, Pui-Yuen Lee, Nicholas F LaRusso
Hepatic cystogenesis in polycystic liver disease (PLD) is associated with abnormalities in multiple cellular processes, including elevated cAMP and overexpression of histone deacetylase 6 (HDAC6). Disease progression in polycystic kidney (PCK) rats (an animal model of PLD) is attenuated by inhibition of either cAMP production or HDAC6. Therefore, we hypothesized that concurrent targeting of HDAC6 and cAMP would synergistically reduce cyst growth. Changes in hepatorenal cystogenesis were examined in PCK rats treated with a pan-HDAC inhibitor, panobinostat; three specific HDAC6 inhibitors, ACY-1215, ACY-738, and ACY-241; and a combination of ACY-1215 and the somatostatin receptor analogue, pasireotide...
January 31, 2018: American Journal of Pathology
Qin Li, Amal Dutta, Charles Kresge, Abhijit Bugde, Andrew P Feranchak
Bile acids stimulate a bicarbonate-rich choleresis in part through effects on cholangiocytes. As Cl- channels in the apical membrane of cholangiocytes provide the driving force for secretion and TMEM16A has been identified as the Ca2+ -activated Cl- channel in the apical membrane of cholangiocytes (1), the aim of the present study was to determine if TMEM16A is the target of bile acid-stimulated Cl- secretion and to identify the regulatory pathway involved. In these studies of mouse, rat, and human biliary epithelium exposure to Ursodeoxycholic acid (UDCA) or Tauroursodeoxycholic acid (TUDCA) rapidly increased the rate of exocytosis, ATP release, [Ca2+ ]i , membrane Cl- permeability, and transepithelial secretion...
January 23, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Elizabeth Brunt, Shinichi Aishima, Pierre-Alain Clavien, Kathryn Fowler, Zachary Goodman, Gregory Gores, Annette Gouw, Alex Kagen, David Klimstra, Mina Komuta, Fukuo Kondo, Rebecca Miksad, Masayuki Nakano, Yasuni Nakanuma, Irene Ng, Valerie Paradis, Young Nyun Park, Alberto Quaglia, Massimo Roncalli, Tania Roskams, Michiie Sakamoto, Romil Saxena, Christine Sempoux, Claude Sirlin, Ashley Stueck, Swan Thung, W M S Tsui, Xin-Wei Wang, Aileen Wee, Hirohisa Yano, Matthew Yeh, Yoh Zen, Jessica Zucman-Rossi, Neil Theise
Primary liver carcinomas with both hepatocytic and cholangiocytic differentiation have been referred to as "combined (or mixed) hepatocellular-cholangiocarcinoma." These tumors, although described over 100 years ago, have attracted greater attention recently because of interest in possible stem cell origin and perhaps because of greater frequency and clinical recognition. Currently, due to lack of common terminology in the literature, effective treatment and predictable outcome data have been challenging to accrue...
January 23, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Jesus M Banales, Marco Marzioni, Nicholas F LaRusso, Peter Jansen
No abstract text is available yet for this article.
January 18, 2018: Biochimica et Biophysica Acta
Tharni Vasavan, Elisa Ferraro, Effendi Ibrahim, Peter Dixon, Julia Gorelik, Catherine Williamson
Cardiac dysfunction has an increased prevalence in diseases complicated by liver cirrhosis such as primary biliary cholangitis and primary sclerosing cholangitis. This observation has led to research into the association between abnormalities in bile acid metabolism and cardiac pathology. Approximately 50% of liver cirrhosis cases develop cirrhotic cardiomyopathy. Bile acids are directly implicated in this, causing QT interval prolongation, cardiac hypertrophy, cardiomyocyte apoptosis and abnormal haemodynamics of the heart...
January 6, 2018: Biochimica et Biophysica Acta
Fei Hou, Ruixia Liu, Xiaoya Liu, Lijian Cui, Xiaozheng Yu, Yan Wen, Huiguo Ding, Chenghong Yin
Arkadia is able to degrade key signaling molecules in the transforming growth factor (TGF)‑β1 signaling pathway; however, the expression of Arkadia in the liver during development and progression of TGF‑β1/Smad signaling‑regulated hepatic fibrosis remains to be elucidated. The present study aimed to examine Arkadia expression in the livers of two rat models of hepatic fibrosis induced by bile duct ligation and carbon tetrachloride intoxication, and in human liver samples from patients with hepatic fibrosis...
December 22, 2017: International Journal of Molecular Medicine
Marketa Jirouskova, Katerina Nepomucka, Gizem Oyman-Eyrilmez, Alzbeta Kalendova, Helena Havelkova, Lenka Sarnova, Karel Chalupsky, Bjoern Schuster, Oldrich Benada, Petra Miksatkova, Martin Kuchar, Ondrej Fabian, Radislav Sedlacek, Gerhard Wiche, Martin Gregor
BACKGROUND & AIMS: Plectin, a highly versatile cytolinker protein, controls intermediate filament (IF) cytoarchitecture and cellular stress response. In the present study, we investigate the role of plectin in the liver under basal conditions and in experimental cholestasis. METHODS: We generated liver-specific Plectin knockout (PleΔalb) mice and analyzed them using two cholestatic liver injury models: bile duct ligation (BDL) and 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) feeding...
December 19, 2017: Journal of Hepatology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"