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Polymorphism and liver transplant

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https://www.readbyqxmd.com/read/28411360/liver-transplant-in-children-with-hepatoblastoma
#1
Razieh Abdolvahabi, Abdolfatah Sarrafnejad, Mohsen Nafar, Davood Jafari, Efat Razaghi, Mahboob Lessan-Pezashki, Mir Saeed Yekaninejad, Ehsan Sharif-Paghaleh, Aliakbar Amirzargar
OBJECTIVES: Toll-like receptors play an important role in innate and adaptive immune responses and can induce acute graft rejection, especially in the early phase after transplant. The aim of this study was to evaluate the possible association between TLR2, TLR4, and CD14 polymorphisms and acute renal rejection. MATERIALS AND METHODS: Our study included 239 patients seen between 2013 and 2015. Patients were classified into 3 groups: acute rejection group (71 patients), stable graft function group (71 patients), and healthy control group (97 patients)...
April 14, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28403123/influence-of-genetic-variations-in-the-sod1-gene-on-the-development-of-ascites-and-spontaneous-bacterial-peritonitis-in-decompensated-liver-cirrhosis
#2
Sebastian Schwab, Jennifer Lehmann, Philipp Lutz, Christian Jansen, Beate Appenrodt, Frank Lammert, Christian P Strassburg, Ulrich Spengler, Hans-Dieter Nischalke, Jonel Trebicka
BACKGROUND: The balance between generation and elimination of reactive oxygen species by superoxide dismutase (SOD) is crucially involved in the pathophysiology of liver cirrhosis. Reactive oxygen species damage cells and induce inflammation/fibrosis, but also play a critical role in immune defense from pathogens. As both processes are involved in the development of liver cirrhosis and its complications, genetic variation of the SOD1 gene was investigated. PATIENTS AND METHODS: Two SOD1 single nucleotide polymorphisms (rs1041740 and rs3844942) were analyzed in 49 cirrhotic patients undergoing liver transplantation...
April 11, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28348581/tfcp2-genetic-polymorphism-is-associated-with-predisposition-to-and-transplant-prognosis-of-hepatocellular-carcinoma
#3
Zhikun Liu, Feng Gao, Zhou Shao, Haiyang Xie, Lin Zhou, Xiao Xu, Shusen Zheng
TFCP2 is an oncogene and plays crucial roles in the incidence and progression of hepatocellular carcinoma (HCC). However, no reports are available on the impact of TFCP2 genetic polymorphism on the susceptibility to and the transplant prognosis of HCC. Here, we genotyped 7 SNPs of TFCP2 in a case-control study of 119 patients with HCC and 200 patients with chronic liver disease. Of the 7 SNPs in TFCP2, rs7959378 distributed differentially between patients with versus patients without HCC. The patients with the CA (OR = 0...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28299025/interleukin-28b-rs12979860-c-t-polymorphism-and-acute-cellular-rejection-after-liver-transplantation
#4
H Fereidooni, N Azarpira, R Yaghobi, A Vahdati, S A Malek-Hoseini
BACKGROUND: Interleukin-28 (IL-28B) rs12979860 C/T polymorphism is a known predictor of sustained virological response after antiviral treatment in hepatitis C. IL-28B affects the innate immune system as well as intrahepatic expression level of interferon-stimulated genes. OBJECTIVE: To investigate the effect of recipient IL-28B polymorphism on occurrence of acute rejection after liver transplantation. METHODS: 140 liver allograft recipients were selected...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28294511/ugt1a-polymorphisms-as-genetic-biomarkers-for-hcc-risk-in-caucasian-population
#5
Elena De Mattia, Erika Cecchin, Jerry Polesel, Francesco Lupo, Claudio Tiribelli, Marina Crovatto, Angela Buonadonna, Giuseppe Toffoli
BACKGROUND&AIMS: The definition of new biomarkers of hepatocellular carcinoma (HCC) risk, especially in high-risk HBV/HCV-positive population, is urgently needed to improve HCC clinical management. This study focused on variants of UDP-glucuronosyltransferase 1A (UGT1A) enzymes, that catalyse the reaction of glucuronidation, one of the most important chemical defence pathway of the body. Aim of the study was to elucidate the contribution of UGT1A polymorphisms in predicting HCC susceptibility in Caucasians...
March 12, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28293239/major-histocompatibility-complex-class-i-chain-related-a-mica-molecules-relevance-in-solid-organ-transplantation
#6
REVIEW
Ajay Kumar Baranwal, Narinder K Mehra
An ever growing number of reports on graft rejection and/or failure even with good HLA matches have highlighted an important role of non-HLA antigens in influencing allograft immunity. The list of non-HLA antigens that have been implicated in graft rejection in different types of organ transplantation has already grown long. Of these, the Major Histocompatibility Complex class I chain-related molecule A (MICA) is one of the most polymorphic and extensively studied non-HLA antigenic targets especially in the kidney transplantation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28246425/influence-of-il-18-and-il-10-polymorphisms-on-tacrolimus-elimination-in-chinese-lung-transplant-patients
#7
Xiaoqing Zhang, Jiandong Xu, Junwei Fan, Tao Zhang, Yuping Li, Boxiong Xie, Wei Zhang, Shengtao Lin, Ling Ye, Yuan Liu, Gening Jiang
Aims. The influence of interleukin-10 (IL-10) and interleukin-18 (IL-18) polymorphisms on tacrolimus pharmacokinetics had been described in liver and kidney transplantation. The expression of cytokines varied in different kinds of transplantation. The influence of IL-10 and IL-18 genetic polymorphisms on the pharmacokinetic parameters of tacrolimus remains unclear in lung transplantation. Methods. 51 lung transplant patients at Shanghai Pulmonary Hospital were included. IL-18 polymorphisms (rs5744247 and rs1946518), IL-10 polymorphisms (rs1800896, rs1800872, and rs3021097), and CYP3A5 rs776746 were genotyped...
2017: Disease Markers
https://www.readbyqxmd.com/read/28164520/the-effect-of-abcb1-polymorphisms-on-serial-tacrolimus-concentrations-in-stable-austrian-long-term-kidney-transplant-recipients
#8
Markus Riegersperger, Max Plischke, Corinna Steinhauser, Anita Jallitsch-Halper, Guerkan Sengoelge, Wolfgang C Winkelmayer, Gere Sunder-Plassmann, Manuela Födinger
BACKGROUND: The multidrug resistance 1 gene (ABCB1) encodes P-glycoprotein (PGP), mainly expressed in the liver and engaged in metabolism of drugs including the immunosuppressant tacrolimus (TAC). ABCB1 single nucleotide polymorphisms (SNP) may significantly alter pharmacokinetics and influence TAC concentrations of kidney transplant recipients (KTR). METHODS: The genotype distribution of ABCB1 1236C>T, 2677G>T/A and 3435C>T was investigated among 96 Austrian KTR who were converted from cyclosporin to TAC...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28100495/probe-free-digital-pcr-quantitative-methodology-to-measure-donor-specific-cell-free-dna-after-solid-organ-transplantation
#9
Su Kah Goh, Vijayaragavan Muralidharan, Christopher Christophi, Hongdo Do, Alexander Dobrovic
BACKGROUND: Donor-specific cell-free DNA (dscfDNA) is increasingly being considered as a noninvasive biomarker to monitor graft health and diagnose graft rejection after solid-organ transplantation. However, current approaches used to measure dscfDNA can be costly and/or laborious. A probe-free droplet digital PCR (ddPCR) methodology using small deletion/insertion polymorphisms (DIPs) was developed to circumvent these limitations without compromising the quantification of dscfDNA. This method was called PHABRE-PCR (Primer to Hybridize across an Allelic BREakpoint-PCR)...
January 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/27973562/the-pnpla3-genetic-variant-rs738409-influences-the-progression-to-cirrhosis-in-hiv-hepatitis-c-virus-coinfected-patients
#10
Rocío Núñez-Torres, Juan Macías, María Mancebo, Mario Frías, Giovanni Dolci, Francisco Téllez, Dolores Merino, Nicolás Merchante, Jesús Gómez-Mateos, Giovanni Guaraldi, Antonio Rivero-Juárez, Juan A Pineda, Luis M Real
Contradictory data about the impact of the rs738409 steatosis-related polymorphism within PNPLA3 gene on liver fibrosis progression in HIV/hepatitis C virus (HIV/HCV)-coinfected patients have been reported. Our objective was to test whether this, and other polymorphisms previously related to fatty liver disease in HIV infection linked to SAMM50 or LPPR4 genes, influence liver fibrosis progression in HIV/HCV-coinfected individuals. Three hundred and thirty two HIV/HCV-coinfected patients who consecutively attended four Spanish university hospitals from November 2011 to July 2013 were included...
2016: PloS One
https://www.readbyqxmd.com/read/27875564/donor-ifnl4-genotype-is-associated-with-early-post-transplant-fibrosis-in-recipients-with-hepatitis-c
#11
Taylor Aiken, Ari Garber, Dawn Thomas, Nicole Hamon, Rocio Lopez, Rajesh Konjeti, Arthur McCullough, Nizar Zein, John Fung, Medhat Askar, Binu V John
BACKGROUND AND AIMS: Early post-transplant hepatic fibrosis is associated with poor outcomes and may be influenced by donor/recipient genetic factors. The rs368234815 IFNL4 polymorphism is related to the previously described IL28B polymorphism, which predicts etiology-independent hepatic fibrosis. The aim of this study was to identify the impact of donor and/or recipient IFNL4 genotype on early fibrosis among patients transplanted for hepatitis C (HCV). METHODS: Clinical data were collected for 302 consecutive patients transplanted for HCV...
2016: PloS One
https://www.readbyqxmd.com/read/27835865/il-15-enhances-the-anti-tumor-activity-of-trastuzumab-against-breast-cancer-cells-but-causes-fatal-side-effects-in-humanized-tumor-mice-htm
#12
Anja K Wege, Florian Weber, Alexander Kroemer, Olaf Ortmann, Falk Nimmerjahn, Gero Brockhoff
Cancer immunotherapy has been shown to enhance established treatment regimens. We evaluated the potential reinforcing effect of IL-15 in trastuzumab treated humanized tumor mice (HTM) which were generated by concurrent transplantation of neonatal NOD-scid IL2Rγnull mice with human hematopoietic stem cells (HSC) and HER2 positive breast cancer cells (metastasizing SK-BR-3, solid tumor forming BT474).We found that trastuzumab treatment efficacy mainly depends on the immediate anti-tumorigenic cellular effect which is significantly enhanced by tumor interacting immune cells upon cotransplantion of HSC...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/27783703/the-impact-of-methylenetetrahydrofolate-reductase-c677t-polymorphism-on-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation-with-methotrexate-prophylaxis
#13
Ja Min Byun, Hea-Lim Kim, Dong-Yeop Shin, Youngil Koh, Sung-Soo Yoon, Moon-Woo Seong, Sung Sup Park, Jin Hee Kim, Yun-Gyoo Lee, Inho Kim
Pharmacogenomics can explain the inter-individual differences in response to drugs, including methotrexate (MTX) used for acute graft-versus-host disease (aGVHD) prophylaxis during hematopoietic stem cell transplantation (HSCT). In real-world practice, preplanned MTX dose is arbitrarily modified according to observed toxicity which can lead to unexpected and severe aGVHD development. We aimed to validate the influence of MTHFR C677T polymorphism on the outcomes of allogenic HSCT in a relatively under-represented homogenous Asian population...
2016: PloS One
https://www.readbyqxmd.com/read/27750412/differences-in-toxicological-and-pharmacological-responses-mediated-by-polymorphic-cytochromes-p450-and-related-drug-metabolizing-enzymes
#14
Hiroshi Yamazaki
Research over the past 30 years has elucidated the roles of polymorphic human liver cytochrome P450 (P450) enzymes associated with toxicological and/or pharmacological actions. Thalidomide exerts its various pharmacological and toxic actions in primates through multiple mechanisms, including nonspecific modification of many protein networks after bioactivation by autoinduced human P450 enzymes. To overcome species differences between rodents, currently, nonhuman primates and/or mouse models with transplanted human hepatocytes are used...
January 17, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/27721965/association-of-gsto2-n142d-genetic-polymorphism-and-acute-rejection-of-liver
#15
M Khosravi, I Saadat, M H Karimi, S A Malek Hosseini
BACKGROUND: Acute rejection is the main problem in liver transplantation that occurs in the first days or months of transplantation. It includes histological and cellular rejection. Acute histological rejection is confirmed by biopsy. Glutathione S-transferase family is the most important genes in phase II detoxification working in xenobiotic and drug metabolism. GSTO2 is one of the members of this family. GSTO2 (N142D) polymorphism may influence metabolism of immunosuppressive drugs...
2016: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/27713880/an-algorithm-measuring-donor-cell-free-dna-in-plasma-of-cellular-and-solid-organ-transplant-recipients-that-does-not-require-donor-or-recipient-genotyping
#16
Paul M K Gordon, Aneal Khan, Umair Sajid, Nicholas Chang, Varun Suresh, Leo Dimnik, Ryan E Lamont, Jillian S Parboosingh, Steven R Martin, Richard T Pon, Jene Weatherhead, Shelly Wegener, Debra Isaac, Steven C Greenway
Cell-free DNA (cfDNA) has significant potential in the diagnosis and monitoring of clinical conditions. However, accurately and easily distinguishing the relative proportion of DNA molecules in a mixture derived from two different sources (i.e., donor and recipient tissues after transplantation) is challenging. In human cellular transplantation, there is currently no useable method to detect in vivo engraftment, and blood-based non-invasive tests for allograft rejection in solid organ transplantation are either non-specific or absent...
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27664842/14-bp-ins-del-polymorphism-and-3142c-g-snp-of-the-hla-g-gene-have-a-significant-impact-on-acute-rejection-after-liver-transplantation
#17
Hansjörg Thude, Maike Janssen, Martina Sterneck, Björn Nashan, Martina Koch
Expression of human leukocyte antigen G (HLA-G) has been associated with increased graft survival and decreased rejection episodes. It has been described that the HLA-G 14-base pair (bp) insertion/deletion (ins/del) (rs66554220) and +3142C>G (rs1063320) gene polymorphisms modify the expression level of HLA-G. The aim of the study was to investigate whether these HLA-G polymorphisms have an impact on acute rejection after liver transplantation. In total, 146 liver transplant recipients (57 with acute rejection and 89 without acute rejection) and 99 corresponding liver donors were genotyped for both polymorphisms...
December 2016: Human Immunology
https://www.readbyqxmd.com/read/27616538/effect-of-hepatic-drug-transporter-polymorphisms-on-the-pharmacokinetics-of-mycophenolic-acid-in-patients-with-severe-renal-dysfunction-before-renal-transplantation
#18
Hideaki Kagaya, Takenori Niioka, Mitsuru Saito, Takamitsu Inoue, Kazuyuki Numakura, Tomonori Habuchi, Shigeru Satoh, Masatomo Miura
1. The objective of this study was to examine the association of UGT1A9, SLCO, and ABCC polymorphisms with mycophenolic acid (MPA) pharmacokinetics in ABO blood type (ABO) incompatible patients with severe renal dysfunction pre-transplantation. 2. In all patients, on day 14 after beginning mycophenolate mofetil (MMF) treatment (1 week before transplantation) and on day 28 after renal transplantation, samples were collected just prior to and 1, 2, 3, 4, 6, 9, and 12 h after oral MMF administration. 3. The median dose-adjusted AUC0-12 of MPA after renal transplantation was significantly lower than before transplantation (57...
October 24, 2016: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/27601752/bradycardia-induced-polymorphic-ventricular-tachycardia-during-living-donor-liver-transplantation
#19
Sunaina Tejpal Karna, Chandra Kant Pandey, Vijay Kant Pandey, Mandeep Dhankhar
No abstract text is available yet for this article.
August 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27580702/a-1573t-c-snp-within-the-human-trail-promoter-determines-trail-expression-and-hcc-tumor-progression
#20
Katja Piras-Straub, Khaleda Khairzada, Peri Kocabayoglu, Andreas Paul, Guido Gerken, Kerstin Herzer
The cytokine tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) induces apoptosis in liver cancer cells but not in normal liver cells. Therefore, TRAIL got credited to play a role in hepatocellular carcinoma (HCC) development and progression. Impaired expression of TRAIL in HCC cells and sequence variations in the TRAIL promoter may facilitate development, growth, and spread . The TRAIL promoter was sequenced from liver tissue of 93 patients undergoing partial liver resection (PRT) or liver transplantation (LT) for HCC...
August 31, 2016: Cancer Medicine
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