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https://www.readbyqxmd.com/read/29786123/genetic-variations-in-lta-gene-and-pdcd1-gene-and-intrauterine-infection-of-hepatitis-b-virus-a-case-control-study-in-china
#1
Tingting Liu, Zhihua Wan, Songxu Peng, Yanni Wang, Hongyan Chen, Xiu Li, Yukai Du
Intrauterine infection with hepatitis B virus (HBV) has been suggested to accounting for most cases of chronic HBV infection, which cannot be blocked by combined immunoprophylaxis. The fact that the genetic background might impact the susceptibility to intrauterine infection of HBV has been identified by recent researches. A case-control study included sixty-nine HBsAg-positive mother-newborn pairs with intrauterine infection as cases compared to 138 mother-newborn pairs without intrauterine infection as controls...
May 21, 2018: Amino Acids
https://www.readbyqxmd.com/read/29784449/a-radiosensitivity-gene-signature-and-pd-l1-predict-the-clinical-outcomes-of-patients-with-lower-grade-glioma-in-tcga
#2
Bum-Sup Jang, In Ah Kim
PURPOSE: Identifying predictive factors for the clinical outcome of patients with lower grade gliomas following radiotherapy could help optimize patient treatments. Here, we investigate the predictive efficacy of both a previously identified "31-gene signature" and programmed death ligand-1 (PD-L1) expression. MATERIAL AND METHODS: We identified 511 patients with lower grade glioma (Grade 2 and 3) in The Cancer Genome Atlas dataset and divided them into two clusters: radiosensitive (RS) and radioresistant (RR)...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29761938/lactoferricin-b-reverses-cisplatin-resistance-in-head-and-neck-squamous-cell-carcinoma-cells-through-targeting-pd-l1
#3
Pei Zhang, Jinzhong Liu, Wenlu Li, Shanshan Li, Xinguang Han
Head and neck squamous cell carcinoma (HNSCC) ranks among the top most common cancers with a poor prognosis. The mechanism of chemoresistance is still not well known. This study is to investigate the programmed death-ligand 1 (PD-L1) expression in HNSCC, and test the effect of lactoferricin B (LfcinB) on chemoresistance and its mechanism. We analyzed 510 HNSCC patients in TCGA database and investigated how CD274 expression was related to patient prognosis. PD-L1 was verified from HNSCC samples at local hospital with immunohistochemistry...
May 15, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29728568/egr2-independent-klf1-mediated-induction-of-pd-l1-in-cd4-t-cells
#4
Shuzo Teruya, Tomohisa Okamura, Toshihiko Komai, Mariko Inoue, Yukiko Iwasaki, Shuji Sumitomo, Hirofumi Shoda, Kazuhiko Yamamoto, Keishi Fujio
Programmed death ligand 1 (PD-L1)-mediated induction of immune tolerance has been vigorously investigated in autoimmunity and anti-tumor immunity. However, details of the mechanism by which PD-L1 is induced in CD4+ T cells are unknown. Here, we revealed the potential function of Klf1 and Egr2-mediated induction of PD-L1 in CD4+ T cells. We focused on the molecules specifically expressed in CD4+ CD25- LAG3+ regulatory T cells (LAG3+ Tregs) highly express of PD-L1 and transcription factor Egr2. Although ectopic expression of Egr2 induced PD-L1, a deficiency of Egr2 did not affect its expression, indicating the involvement of another PD-L1 induction mechanism...
May 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29721184/correlation-between-lower-balance-of-th2-helper-t-cells-and-expression-of-pd-l1-pd-1-axis-genes-enables-prognostic-prediction-in-patients-with-glioblastoma
#5
Yasuo Takashima, Atsushi Kawaguchi, Tomohiko Kanayama, Azusa Hayano, Ryuya Yamanaka
Common cancer treatments include radiation therapy, chemotherapy including molecular targeted drugs and anticancer drugs, and surgical treatment. Recent studies have focused on investigating the mechanisms by which immune cells attack cancer cells and produce immune tolerance-suppressing cytokines, as well as on their potential application in cancer immunotherapy. We conducted expression profiling of CD274 ( PD-L1 ), GATA3, IFNG, IL12R, IL12RB2, IL4, PDCD1 ( PD-1 ), PDCD1LG2 ( PD-L2 ), and TBX21 ( T-bet ) using data of 158 glioblastoma multiforme (GBM) patients with clinical information available at The Cancer Genome Atlas...
April 10, 2018: Oncotarget
https://www.readbyqxmd.com/read/29716923/interferon-gamma-messenger-rna-signature-in-tumor-biopsies-predicts-outcomes-in-patients-with-non-small-cell-lung-carcinoma-or-urothelial-cancer-treated-with-durvalumab
#6
Brandon W Higgs, Christopher Morehouse, Katie L Streicher, Philip Brohawn, Fernanda Pilataxi, Ashok Gupta, Koustubh Ranade
PURPOSE: To identify a predictive biomarker for durvalumab, an anti-programmed death ligand 1 (PD-L1) monoclonal antibody. EXPERIMENTAL DESIGN: RNA sequencing of 97 advanced-stage non-small-cell lung carcinoma (NSCLC) biopsies from a nonrandomized phase 1b/2 clinical trial (1108/NCT01693562) were profiled to identify a predictive signature; 62 locally advanced or metastatic urothelial cancer (UC) tumors from the same study were profiled to confirm predictive utility of the signature...
May 1, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29707129/circulating-programmed-death-ligand-1-cpd-l1-in-non-small-cell-lung-cancer-nsclc
#7
Silvia Vecchiarelli, Francesco Passiglia, Armida D'Incecco, Marianna Gallo, Antonella De Luca, Elisa Rossi, Federica D'Incà, Gabriele Minuti, Lorenza Landi, Chiara Bennati, Michela Spreafico, Manolo D'Arcangelo, Valentina Mazza, Nicola Normanno, Federico Cappuzzo
Background: This study aimed at investigating feasibility of programmed death ligand-1 (PD-L1) testing in plasma samples of advanced NSCLC patients receiving first-line treatment, assessing whether circulating (c)PD-L1 levels were modified by the therapy and whether baseline cPD-L1 levels were associated with patients' clinical responses and survival outcome. Methods: Peripheral blood samples were collected from 16 healthy volunteers and 56 newly diagnosed NSCLC patients before and at 12th week during the course of first-line therapy...
April 3, 2018: Oncotarget
https://www.readbyqxmd.com/read/29642405/transcriptome-analysis-of-acute-phase-liver-graft-injury-in-liver-transplantation
#8
Nikki P Lee, Haiyang Wu, Kevin T P Ng, Ruibang Luo, Tak-Wah Lam, Chung-Mau Lo, Kwan Man
BACKGROUND: Liver transplantation remains the treatment of choice for a selected group of hepatocellular carcinoma (HCC) patients. However, the long-term benefit is greatly hampered by post-transplant HCC recurrence. Our previous studies have identified liver graft injury as an acute phase event leading to post-transplant tumor recurrence. METHODS: To re-examine this acute phase event at the molecular level and in an unbiased way, RNA sequencing (RNA-Seq) was performed on liver graft biopsies obtained from the transplant recipients two hours after portal vein reperfusion with an aim to capture frequently altered pathways that account for post-transplant tumor recurrence...
April 6, 2018: Biomedicines
https://www.readbyqxmd.com/read/29615459/genetic-analysis-of-779-advanced-differentiated-and-anaplastic-thyroid-cancers
#9
Nikita Pozdeyev, Laurie Gay, Ethan S Sokol, Ryan J Hartmaier, Kelsi E Deaver, Stephanie N Davis, Jena D French, Pierre Vanden Borre, Daniel V LaBarbera, Aik-Choon Tan, Rebecca E Schweppe, Lauren Fishbein, Jeffrey S Ross, Bryan R Haugen, Daniel W Bowles
PURPOSE: To define the genetic landscape of advanced differentiated and anaplastic thyroid cancer and identify genetic alterations of potential diagnostic, prognostic and therapeutic significance. EXPERIMENTAL DESIGN: The genetic profiles of 583 advanced differentiated and 196 anaplastic thyroid cancers (ATC) generated with targeted next-generation sequencing cancer-associated gene panels MSK-IMPACT and FoundationOne were analyzed. RESULTS: ATC had more genetic alterations per tumor, and pediatric papillary thyroid cancer had fewer genetic alterations per tumor when compared to other thyroid cancer types...
April 3, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29593668/simulation-study-of-cdna-dataset-to-investigate-possible-association-of-differentially-expressed-genes-of-human-thp1-monocytic-cells-in-cancer-progression-affected-by-bacterial-shiga-toxins
#10
Syed A Muhammad, Jinlei Guo, Thanh M Nguyen, Xiaogang Wu, Baogang Bai, X Frank Yang, Jake Y Chen
Shiga toxin (Stxs) is a family of structurally and functionally related bacterial cytotoxins produced by Shigella dysenteriae serotype 1 and shigatoxigenic group of Escherichia coli that cause shigellosis and hemorrhagic colitis, respectively. Until recently, it has been thought that Stxs only inhibits the protein synthesis and induces expression to a limited number of genes in host cells, but recent data showed that Stxs can trigger several signaling pathways in mammalian cells and activate cell cycle and apoptosis...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29593314/oncofetal-gene-sall4-reactivation-by-hepatitis-b-virus-counteracts-mir-200c-in-pd-l1-induced-t-cell-exhaustion
#11
Cheng Sun, Peixiang Lan, Qiuju Han, Mei Huang, Zhihong Zhang, Geliang Xu, Jiaxi Song, Jinyu Wang, Haiming Wei, Jian Zhang, Rui Sun, Cai Zhang, Zhigang Tian
A chronic viral or tumor microenvironment can push T cells to exhaustion by promoting coinhibitory ligand expression. However, how host factors control coinhibitory ligand expression and whether viral infection breaks this control during tumor progress is unknown. Here we show a close negative correlation between SALL4 or PD-L1 and miR-200c in tumors from 98 patients with HBV-related hepatocellular carcinoma. SALL4 or PD-L1 expression correlates negatively with miR-200c expression, and patients with lower levels of SALL4 or PD-L1 and higher miR-200c survive longer...
March 28, 2018: Nature Communications
https://www.readbyqxmd.com/read/29575535/inhibition-of-yes-associated-protein-down-regulates-pd-l1-cd274-expression-in-human-malignant-pleural-mesothelioma
#12
Ping-Chih Hsu, Jinbai Miao, Yu-Cheng Wang, Wen-Qian Zhang, Yi-Lin Yang, Chih-Wei Wang, Cheng-Ta Yang, Zhen Huang, Joanna You, Zhidong Xu, David M Jablons, Liang You
Although tumour PD-L1 (CD274) expression had been used as a predictive biomarker in checkpoint immunotherapy targeting the PD1/PD-L1 axis in various cancers, the regulation of PD-L1 (CD274) expression is unclear. Yes-associated protein (YAP), an important oncogenic protein in Hippo signalling pathway, reportedly promotes cancer development. We investigated whether inhibition of YAP down-regulates PD-L1 (CD274) in human malignant pleural mesothelioma (MPM). Western blotting showed that 2 human MPM cell lines (H2052 and 211H) had increased PD-L1 protein expression compared to H290, MS-1 and H28 cells...
March 24, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29571084/comprehensive-analysis-of-cancers-of-unknown-primary-for-the-biomarkers-of-response-to-immune-checkpoint-blockade-therapy
#13
Zoran Gatalica, Joanne Xiu, Jeff Swensen, Semir Vranic
BACKGROUND: Cancer of unknown primary (CUP) accounts for approximately 3% of all malignancies. Avoiding immune destruction is a major cancer characteristic and therapies aimed at immune checkpoint blockade are in use for several specific cancer types. A comprehensive survey of predictive biomarkers to immune checkpoint blockade in CUP were explored in this study. METHODS: About 389 cases of CUP were analysed for mutations in 592 genes and 52 gene fusions using a massively parallel DNA sequencing platform (next-generation sequencing [NGS])...
March 20, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29545920/hypoxia-enhances-indoleamine-2-3-dioxygenase-production-in-dendritic-cells
#14
Xiang Song, Yan Zhang, Li Zhang, Wengang Song, Lixin Shi
Hypoxia-associated metabolic reprogramming modulates the biological functions of many immune and non-immune cells, and affects immune response types and intensities. Adenosine and indoleamine 2,3-dioxygenase (IDO) are known immunosuppressors, and adenosine is a hypoxia-associated product. We investigated the impact of hypoxia on IDO production in dendritic cells (DCs). We found that hypoxia (1% O2 ) enhances IDO production in DCs, and this increase was dependent on the adenosine A3 receptor (A3R), but not A2aR or A2bR...
February 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29538329/update-on-immunohistochemistry-for-the-diagnosis-of-lung-cancer
#15
REVIEW
Kentaro Inamura
Immunohistochemistry is a widely available technique that is less challenging and can provide clinically meaningful results quickly and cost-efficiently in comparison with other techniques. In addition, immunohistochemistry allows for the evaluation of cellular localization of proteins in the context of tumor structure. In an era of precision medicine, pathologists are required to classify lung cancer into specific subtypes and assess biomarkers relevant to molecular-targeted therapies. This review summarizes the hot topics of immunohistochemistry in lung cancer, including (i) adenocarcinoma vs squamous cell carcinoma; (ii) neuroendocrine markers; (iii) ALK, ROS1, and EGFR; (iv) PD-L1 (CD274); (v) lung carcinoma vs malignant mesothelioma; and (vi) NUT carcinoma...
March 14, 2018: Cancers
https://www.readbyqxmd.com/read/29520442/cd274-lag3-and-ido1-expressions-in-tumor-infiltrating-immune-cells-as-prognostic-biomarker-for-patients-with-msi-high-colon-cancer
#16
Soo Jung Lee, Sun-Young Jun, In Hee Lee, Byung Woog Kang, Su Yeon Park, Hye Jin Kim, Jun Seok Park, Gyu-Seog Choi, Ghilsuk Yoon, Jong Gwang Kim
PURPOSE: This study attempted to reveal the prognostic impact of microsatellite instability-high (MSI-H) colon cancer with tumor-infiltrating immune cells (TIICs) and immune checkpoint protein expression, which are good candidates for immunotherapy. MATERIALS AND METHODS: The study included 89 patients with MSI-H colon cancer who underwent curative surgery at Kyungpook National University Chilgok Hospital. The expression status of specific inhibitory receptors, such as CD274 (programmed death-ligand 1, PD-L1), PDCD1 (programmed cell death 1, PD-1), cytotoxic T-lymphocyte-associated protein 4 (CTLA4), lymphocyte-activation gene 3 (LAG3), and indolamine 2'3'-dioxygenase 1 (IDO1), was retrospectively analyzed using immunohistochemistry (IHC)...
June 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29499224/a-critical-role-for-il-18-in-transformation-and-maturation-of-naive-eosinophils-to-pathogenic-eosinophils
#17
Sathisha Upparahalli Venkateshaiah, Akanksha Mishra, Murli Manohar, Alok K Verma, Priya Rajavelu, Rituraj Niranjan, Laurianne G Wild, Nereida A Parada, Uwe Blecker, Joseph A Lasky, Anil Mishra
No abstract text is available yet for this article.
March 2, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29490989/a-genetic-polymorphism-in-ctla-4-is-associated-with-overall-survival-in-sunitinib-treated-patients-with-clear-cell-metastatic-renal-cell-carcinoma
#18
Xiaoyan Liu, Jesse J Swen, Meta H M Diekstra, Epie Boven, Daniel Castellano, Hans Gelderblom, Ron H J Mathijssen, Sita H Vermeulen, Egbert Oosterwijk, Kerstin Junker, Max Roessler, Kristin Alexiusdottir, Asgerdur Sverrisdottir, Marius T Radu, Valentin Ambert, Tim Eisen, Anne Warren, Cristina Rodríguez-Antona, Jesus García-Donas, Stefan Böhringer, Karel K M Koudijs, Lambertus A L M Kiemeney, Brian I Rini, Henk-Jan Guchelaar
Purpose: The survival of patients with clear cell metastatic renal cell carcinoma (cc-mRCC) has improved substantially since the introduction of tyrosine kinase inhibitors (TKI). With the fact that TKIs interact with immune responses, we investigated whether polymorphisms of genes involved in immune checkpoints are related to the clinical outcome of cc-mRCC patients treated with sunitinib as first TKI. Experimental Design: Twenty-seven single-nucleotide polymorphisms (SNP) in CD274 (PD-L1), PDCD1 (PD-1), and CTLA-4 were tested for a possible association with progression-free survival (PFS) and overall survival (OS) in a discovery cohort of 550 sunitinib-treated cc-mRCC patients...
February 28, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29463802/clonal-dynamics-towards-the-development-of-venetoclax-resistance-in-chronic-lymphocytic-leukemia
#19
Carmen D Herling, Nima Abedpour, Jonathan Weiss, Anna Schmitt, Ron Daniel Jachimowicz, Olaf Merkel, Maria Cartolano, Sebastian Oberbeck, Petra Mayer, Valeska Berg, Daniel Thomalla, Nadine Kutsch, Marius Stiefelhagen, Paula Cramer, Clemens-Martin Wendtner, Thorsten Persigehl, Andreas Saleh, Janine Altmüller, Peter Nürnberg, Christian Pallasch, Viktor Achter, Ulrich Lang, Barbara Eichhorst, Roberta Castiglione, Stephan C Schäfer, Reinhard Büttner, Karl-Anton Kreuzer, Hans Christian Reinhardt, Michael Hallek, Lukas P Frenzel, Martin Peifer
Deciphering the evolution of cancer cells under therapeutic pressure is a crucial step to understand the mechanisms that lead to treatment resistance. To this end, we analyzed whole-exome sequencing data of eight chronic lymphocytic leukemia (CLL) patients that developed resistance upon BCL2-inhibition by venetoclax. Here, we report recurrent mutations in BTG1 (2 patients) and homozygous deletions affecting CDKN2A/B (3 patients) that developed during treatment, as well as a mutation in BRAF and a high-level focal amplification of CD274 (PD-L1) that might pinpoint molecular aberrations offering structures for further therapeutic interventions...
February 20, 2018: Nature Communications
https://www.readbyqxmd.com/read/29453977/amelioration-of-progressive-autoimmune-encephalomyelitis-by-epigenetic-regulation-involves-selective-repression-of-mature-neutrophils-during-the-preclinical-phase
#20
Arathi Jayaraman, Monica Sharma, Bellur Prabhakar, Mark Holterman, Sundararajan Jayaraman
We have recently demonstrated that treatment of NOD mice with the epigenetic drug Trichostatin A (TSA) ameliorated myelin peptide induced progressive experimental autoimmune encephalomyelitis (P-EAE). Protection was accompanied by induction of antigen-specific T-cell tolerance in the periphery and reduced influx of T cells into the spinal cord. In this investigation, we examined whether the epigenetic drug could impact the innate immune system as well. Whereas the mature (MHC class II+ ) CD11b+ Ly-6G+ neutrophils expanded substantially in the peripheral lymphoid compartment during the preclinical phase, the MHC class II+ , CD11b+ Ly-6C+ mature monocytes increased modestly throughout the disease course...
June 2018: Experimental Neurology
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