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https://www.readbyqxmd.com/read/28645247/the-correlation-between-poor-prognosis-and-increased-yes-associated-protein-1-expression-in-keratin-19-expressing-hepatocellular-carcinomas-and-cholangiocarcinomas
#1
KyuHo Lee, Kyoung-Bun Lee, Hae Yoen Jung, Nam-Joon Yi, Kwang-Woong Lee, Kyung-Suk Suh, Ja-June Jang
BACKGROUND: The Hippo pathway plays a vital role in liver regeneration and development by determining cellular lineage and regulating cell proliferation and apoptosis. In this study, we aimed to assess the role of the Hippo pathway in hepatic carcinogenesis and morphogenesis by examining Yes-associated protein 1 (YAP1) expression in the spectrum of hepatic carcinomas based on cellular lineage. METHODS: We examined 913 primary hepatic carcinomas, including hepatocellular carcinomas (HCCs), combined hepatocellular and cholangiocarcinomas (cHC-CCAs), intrahepatic cholangiocarcinomas (IHCCAs) and perihilar extrahepatic bile duct carcinomas (EHBCAs)...
June 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28644135/evaluation-of-thromboelastometry-parameters-as-predictive-markers-for-sinusoidal-obstruction-syndrome-in-patients-undergoing-allogeneic-stem-cell-transplantation-for-acute-leukaemia
#2
Joanna Rupa-Matysek, Lidia Gil, Ewelina Wojtasińska, Zuzanna Kanduła, Adam Nowicki, Magdalena Matuszak, Mieczysław Komarnicki
Hepatic sinusoidal obstruction syndrome (previously named veno-occlusive disease, SOS/VOD) is a serious complication of allogeneic stem cell transplantation (HSCT). Early identification of patients at risk of SOS/VOD may possibly improve the outcome and reduce mortality. Rotation thromboelastometry (ROTEM) is global assay allowing for the precise assessment of both bleeding and thrombotic conditions, however, its usefulness in patients undergoing HSCT for acute leukaemia has not been studied.We evaluated the thromboelastometry parameters in patients undergoing allogeneic HSCT for acute leukaemia to identify candidate biomarkers of SOS/VOD occurrence...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28643126/cancer-stem-cells-in-hepatocellular-carcinoma
#3
REVIEW
Tamer Yagci, Metin Cetin, Pelin Balcik Ercin
BACKGROUND: Hepatocellular carcinoma is one of the most common cancers and the second leading cause of cancer-related deaths worldwide. Only a small proportion of patients benefit from curative treatment and the prognosis is very poor for the majority of cases due to late presentation, resistance to chemotherapy and high recurrence rate. In recent years, progress in stem cell biology allowed us to explain that hierarchically organized cancer stem cells (CSCs) drive histological and functional heterogeneity of hematological malignancies and solid tumors...
June 23, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28641515/the-development-of-stem-cell-based-treatment-for-liver-failure
#4
Tiantian Zhu, Yuwen Li, Yusheng Guo, Chuanlong Zhu
Liver failure is a devastating clinical syndrome with a persistently mortality rate despite advanced care. According to the pathological histology, hepatic failure was divided into four categories: acute liver failure (ALF), subacute liver failure (SALF), acute - on - chronic liver failure (ACLF) and chronic liver failure (CLF). Orthotopic liver transplantation protected patients from hepatic failure. Yet, limitations including postoperative complications, high costs, and shortages of donor organs defect its application...
June 15, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28641094/emerging-concepts-in-cytomegalovirus-infection-following-hematopoietic-stem-cell-transplantation
#5
REVIEW
Jose F Camargo, Krishna V Komanduri
Despite the refinements in molecular methods for the detection of cytomegalovirus (CMV) and the advent of highly effective preemptive strategies, CMV remains a leading cause of morbidity and mortality in hematopoietic cell transplant (HCT) recipients. CMV can cause tissue-invasive disease including pneumonia, hepatitis, colitis, retinitis, and encephalitis. Mortality in HCT recipients with CMV disease can be as high as 60%. CMV infection has been associated with increased risk of secondary bacterial and fungal infections, increased risk of graft-versus-host disease, and high rates of nonrelapse mortality following HCT...
June 14, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28631381/tec-controls-pluripotency-and-early-cell-fate-decisions-of-human-pluripotent-stem-cells-via-regulation-of-fgf2-secretion
#6
Tereza Vanova, Zaneta Konecna, Zuzana Zbonakova, Giuseppe La Venuta, Karolina Zoufalova, Sarka Jelinkova, Miroslav Varecha, Vladimir Rotrekl, Pavel Krejci, Walter Nickel, Petr Dvorak, Michaela Kunova Bosakova
Human pluripotent stem cells (hPSC) require signaling provided by fibroblast growth factor (FGF) receptors. This can be initiated by the recombinant FGF2 ligand supplied exogenously, but hPSC further support their niche by secretion of endogenous FGF2. In this study, we describe a role of TEC kinase (tyrosine kinase expressed in hepatocellular carcinoma) in this process. We show that TEC-mediated FGF2 secretion is essential for hPSC self-renewal, and its lack mediates specific differentiation. Following both shRNA- and siRNA-mediated TEC knock-down, hPSC secrete less FGF2...
June 20, 2017: Stem Cells
https://www.readbyqxmd.com/read/28627746/hepatic-perivascular-mesenchymal-stem-cells-with-myogenic-properties
#7
Sudheer Shenoy P, Bipasha Bose
Pericytes are multipotent mesenchymal stem cells (MSCs) located on the walls of blood vessels in various organs and are characterized as CD146(+) cells.. In this study, we have first immunohistochemically detected such pericytes in the perivascular regions of liver from two mouse genotypes namely wild-type (WT) and myostatin null (Mstn(-/-) ). We further isolated such pericytes using sorting as CD146(+) CD34(-) CD56(-) CD45(-) cells. The main finding of this study involve the contrasting -fibrogenic versus myogenic behavior of liver pericytes from WTMstn(-/-) ) mouse respectively...
June 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28627604/the-c-terminus-domain-of-the-hepatitis-b-virus-x-protein-stimulates-the-proliferation-of-mouse-foetal-hepatic-progenitor-cells-although-it-is-not-required-for-the-formation-of-spheroids
#8
Liming Yu, Shu Chen, Na Luo, Song He
The hepatitis B virus X (HBx) protein is an important factor in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC). The C-terminal region of HBx plays a major role in the replication of HBV. Notably, HBx promotes the expansion and tumourigenesis of hepatic progenitor cells (HPCs) in mice. However, it remains unclear as to whether the C-terminal region of HBx is required for the stimulation fo the proliferation of mouse foetal HPCs (FHPCs). In our study, we used EpCAM+, CD133+ and CD49f+ FHPCs, which are bipotential clonogenic cells...
June 14, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28627280/the-targeting-effect-of-hm2e8b-nctd-liposomes-on-b-lineage-leukemia-stem-cells-is-associated-with-the-hlf-slug-axis
#9
Jingying Zhang, Diyin Shen, Min Jia, Haizhao Zhao, Yongmin Tang
To identify an agent with specific activity against B-lineage leukemia stem cells (B-LSCs), we generated norcantharidin (NCTD)-encapsulated liposomes modified with a novel humanized anti-human CD19 monoclonal antibody, Hm2E8b (Hm2E8b-NCTD-liposomes). These liposomes were specially designed to recognize and kill B-LSCs in vitro, and to decrease non-specific cytotoxicity to untargeted cells. Hm2E8b-NCTD-liposomes selectively ablated B-LSCs through targeting hepatic leukemia factor (HLF), which is implicated in hematopoietic stem cell regulation and is overexpressed in LSCs...
June 19, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28624103/from-organoids-to-organs-bioengineering-liver-grafts-from%C3%A2-hepatic-stem-cells-and-matrix
#10
REVIEW
Jorke Willemse, Ruby Lieshout, Luc J W van der Laan, Monique M A Verstegen
Due to the complex function and structure of the liver, resourceful solutions for treating end-stage liver disease are required. Currently, liver transplantation is the only curative therapeutic option. However, due to a worldwide donor shortage, researchers have been looking in other fields for alternative sources of transplantable liver tissue. Recent advances in our understanding of liver physiology, stem cell and matrix biology, have accelerated tissue engineering research. Most notable is the discovery of a culture system to grow liver-like organoids from human hepatic stem cells...
April 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28620221/mesenchymal-stem-cell-derived-exosomes-as-a-new-therapeutic-strategy-for-liver-diseases
#11
REVIEW
Guohua Lou, Zhi Chen, Min Zheng, Yanning Liu
The administration of mesenchymal stem cells (MSCs) as a therapy for liver disease holds great promise. MSCs can differentiate into hepatocytes, reduce liver inflammation, promote hepatic regeneration and secrete protective cytokines. However, the risks of iatrogenic tumor formation, cellular rejection and infusional toxicity in MSC transplantation remain unresolved. Accumulating evidence now suggests that a novel cell-free therapy, MSC-secreted exosomes, might constitute a compelling alternative because of their advantages over the corresponding MSCs...
June 16, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28612274/fine-structure-of-the-midgut-epithelium-in-the-millipede-telodeinopus-aoutii-myriapoda-diplopoda-with-special-emphasis-on-epithelial-regeneration
#12
M M Rost-Roszkowska, M Kszuk-Jendrysik, A Marchewka, I Poprawa
The midgut of millipedes is composed of a simple epithelium that rests on a basal lamina, which is surrounded by visceral muscles and hepatic cells. As the material for our studies, we chose Telodeinopus aoutii (Demange, 1971) (Kenyan millipede) (Diplopoda, Spirostreptida), which lives in the rain forests of Central Africa. This commonly reared species is easy to obtain from local breeders and easy to culture in the laboratory. During our studies, we used transmission and scanning electron microscopes and light and fluorescent microscopes...
June 14, 2017: Protoplasma
https://www.readbyqxmd.com/read/28596681/effects-of-heme-oxygenase-1-modified-bone-marrow-mesenchymal-stem-cells-on-microcirculation-and-energy-metabolism-following-liver-transplantation
#13
Liu Yang, Zhong-Yang Shen, Rao-Rao Wang, Ming-Li Yin, Wei-Ping Zheng, Bin Wu, Tao Liu, Hong-Li Song
AIM: To investigate the effects of heme oxygenase-1 (HO-1)-modified bone marrow mesenchymal stem cells (BMMSCs) on the microcirculation and energy metabolism of hepatic sinusoids following reduced-size liver transplantation (RLT) in a rat model. METHODS: BMMSCs were isolated and cultured in vitro using an adherent method, and then transduced with HO-1-bearing recombinant adenovirus to construct HO-1/BMMSCs. A rat acute rejection model following 50% RLT was established using a two-cuff technique...
May 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28586545/multifaceted-therapeutic-benefits-of-factors-derived-from-stem-cells-from-human-exfoliated-deciduous-teeth-for-acute-liver-failure-in-rats
#14
Yoshihiro Matsushita, Masatoshi Ishigami, Kohki Matsubara, Megumi Kondo, Hirotaka Wakayama, Hidemi Goto, Minoru Ueda, Akihito Yamamoto
In acute liver failure (ALF), a poorly controlled innate immune response causes massive hepatic destruction, which elicits a systemic inflammatory response, progressive multiple organ failure and ultimate sudden death. Although the liver has inherent tissue-repairing activities, its regeneration during ALF fails, and orthotopic liver transplantation is the only curative approach. Here we show that a single intravenous administration of stem cells derived from human exfoliated deciduous teeth (SHEDs) or of SHED-derived serum-free conditioned medium (SHED-CM) into the d-galactosamine-induced rat model of ALF markedly improved the condition of the injured liver and the animals' survival rate...
June 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28583205/human-liver-mesenchymal-stem-progenitor-cells-inhibit-hepatic-stellate-cell-activation-in-vitro-and-in-vivo-evaluation
#15
Mustapha Najimi, Silvia Berardis, Hoda El-Kehdy, Valérie Rosseels, Jonathan Evraerts, Catherine Lombard, Adil El Taghdouini, Patrick Henriet, Leo van Grunsven, Etienne Marc Sokal
BACKGROUND: Progressive liver fibrosis leads to cirrhosis and end-stage liver disease. This disease is a consequence of strong interactions between matrix-producing hepatic stellate cells (HSCs) and resident and infiltrating immune cell populations. Accumulated experimental evidence supports the involvement of adult-derived human liver mesenchymal stem/progenitor cells (ADHLSCs) in liver regeneration. The aim of the present study was to evaluate the influence of ADHLSCs on HSCs, both in vitro and in vivo...
June 5, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28572613/mesenchymal-stem-cells-correct-haemodynamic-dysfunction-associated-with-liver-injury-after-extended-resection-in-a-pig-model
#16
Hans-Michael Tautenhahn, Sandra Brückner, Christiane Uder, Silvio Erler, Madlen Hempel, Martin von Bergen, Janine Brach, Sandra Winkler, Franziska Pankow, Claudia Gittel, Manja Baunack, Undine Lange, Johannes Broschewitz, Matthias Dollinger, Michael Bartels, Uta Pietsch, Kerstin Amann, Bruno Christ
In patients, acute kidney injury (AKI) is often due to haemodynamic impairment associated with hepatic decompensation following extended liver surgery. Mesenchymal stem cells (MSCs) supported tissue protection in a variety of acute and chronic diseases, and might hence ameliorate AKI induced by extended liver resection. Here, 70% liver resection was performed in male pigs. MSCs were infused through a central venous catheter and haemodynamic parameters as well as markers of acute kidney damage were monitored under intensive care conditions for 24 h post-surgery...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28566884/hepatitis-b-virus-x-protein-induces-hepatic-stem-cell-like-features-in-hepatocellular-carcinoma-by-activating-kdm5b
#17
Xuyang Wang, Naoki Oishi, Tetsuro Shimakami, Taro Yamashita, Masao Honda, Seishi Murakami, Shuichi Kaneko
AIM: To determine the role of hepatitis B virus X protein (HBx), HBx in regulating hepatic progenitor cell (HPC)-like features in hepatocellular carcinoma (HCC) and the underlying molecular mechanisms. METHODS: We used a retrovirus vector to introduce wild type HBx or empty vector into HepG2 cells. We then used these cells to analyze cell proliferation, senescence, transformation, and stem-like features. Gene expression profiling was carried out on Affymetrix GeneChip Human U133A2...
May 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28557353/generation-of-carbamoyl-phosphate-synthetase-1-reporter-cell-lines-for-the-assessment-of-ammonia-metabolism
#18
Yi Wang, Le Chang, Jiahui Zhai, Qiao Wu, Donggen Wang, Yunfang Wang
Both primary hepatocytes and stem cells-derived hepatocyte-like cells (HLCs) are major sources for bioartificial liver (BAL). Maintenance of hepatocellular functions and induction of functional maturity of HLCs are critical for BAL's support effect. It remains difficult to assess and improve detoxification functions inherent to hepatocytes, including ammonia clearance. Here, we aim to assess ammonia metabolism and identify ammonia detoxification enhancer by developing an imaging strategy. In hepatoma cell line HepG2, and immortalized hepatic cell line LO2, carbamoyl phosphate synthetase 1 (CPS1) gene, the first enzyme of ammonia-eliminating urea cycle, was labelled with fluorescence protein via CRISPR/Cas9 system...
May 30, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28554132/the-human-rna-surveillance-factor-up-frameshift-1-inhibits-hepatic-cancer-progression-by-targeting-mrp2-abcc2
#19
Hai Zhang, Yina You, Zhongliang Zhu
Although the roles of Up-frameshift 1 (UPF1) in hepatocellular carcinoma (HCC) have been partly revealed, the detailed mechanisms remain poorly understood. Here, quantitative real-time PCR (qRT-PCR) and immunohistochemistry assays indicated that UPF1 expression was decreased in HCC tissues compared to the corresponding adjacent tissues, and was negatively correlated with MRP2/ABCC2 expression. Cell viability and apoptosis analyses showed that overexpression of UPF1 enhanced HCC cell sensitivity to sorafenib treatment, while knockdown of UPF1 decreased the sensitivity...
May 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28552849/human-mesenchymal-stem-cells-preferentially-migrate-toward-highly-oncogenic-human-hepatocellular-carcinoma-cells-with-activated-epcam-signaling
#20
Berwini Endaya, Shou P Guan, Jennifer P Newman, Hung Huynh, Kian C Sia, Siao T Chong, Catherine Y L Kok, Alexander Y F Chung, Bin B Liu, Kam M Hui, Paula Y P Lam
The epithelial cell adhesion molecule (EpCAM) is a type I transmembrane glycoprotein that is regarded as one of the markers for tumor initiating cells (TIC) in human hepatocellular carcinoma (HCC). Much work has been directed towards targeting these TICs as a mean of placing these master regulators of cell proliferation and drug resistance under control. Human bone marrow-derived mesenchymal stem cells are known to exhibit an innate property of tumor tropism. However, the possible relationship between MSC and TIC is not well understood...
May 5, 2017: Oncotarget
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