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https://www.readbyqxmd.com/read/28545127/improvement-of-alt-decay-kinetics-by-all-oral-hcv-treatment-role-of-ns5a-inhibitors-and-differences-with-ifn-based-regimens
#1
Valeria Cento, Thi Huyen Tram Nguyen, Domenico Di Carlo, Elisa Biliotti, Laura Gianserra, Ilaria Lenci, Daniele Di Paolo, Vincenza Calvaruso, Elisabetta Teti, Maddalena Cerrone, Dante Romagnoli, Michela Melis, Elena Danieli, Barbara Menzaghi, Ennio Polilli, Massimo Siciliano, Laura Ambra Nicolini, Antonio Di Biagio, Carlo Federico Magni, Matteo Bolis, Francesco Paolo Antonucci, Velia Chiara Di Maio, Roberta Alfieri, Loredana Sarmati, Paolo Casalino, Sergio Bernardini, Valeria Micheli, Giuliano Rizzardini, Giustino Parruti, Tiziana Quirino, Massimo Puoti, Sergio Babudieri, Antonella D'Arminio Monforte, Massimo Andreoni, Antonio Craxì, Mario Angelico, Caterina Pasquazzi, Gloria Taliani, Jeremie Guedj, Carlo Federico Perno, Francesca Ceccherini-Silberstein
BACKGROUND: Intracellular HCV-RNA reduction is a proposed mechanism of action of direct-acting antivirals (DAAs), alternative to hepatocytes elimination by pegylated-interferon plus ribavirin (PR). We modeled ALT and HCV-RNA kinetics in cirrhotic patients treated with currently-used all-DAA combinations to evaluate their mode of action and cytotoxicity compared with telaprevir (TVR)+PR. STUDY DESIGN: Mathematical modeling of ALT and HCV-RNA kinetics was performed in 111 HCV-1 cirrhotic patients, 81 treated with all-DAA regimens and 30 with TVR+PR...
2017: PloS One
https://www.readbyqxmd.com/read/28544749/role-of-treatment-on-the-development-of-secondary-malignancies-in-patients-with-essential-thrombocythemia
#2
Cristina Santoro, Isabella Sperduti, Roberto Latagliata, Erminia Baldacci, Barbara Anaclerico, Giuseppe Avvisati, Massimo Breccia, Francesco Buccisano, Michele Cedrone, Giuseppe Cimino, Cinzia De Gregoris, Marianna De Muro, Ambra Di Veroli, Sabrina Leonetti Crescenzi, Marco Montanaro, Enrico Montefusco, Raffaele Porrini, Angela Rago, Antonio Spadea, Francesca Spirito, Nicoletta Villivà, Alesssandro Andriani, Giuliana Alimena, Maria Gabriella Mazzucconi
Aim of this study is to explore the role of different treatments on the development of secondary malignancies (SMs) in a large cohort of essential thrombocythemia (ET) patients. We report the experience of a regional cooperative group in a real-life cohort of 1026 patients with ET. We divided our population into five different groups: group 0, no treatment; group 1, hydroxyurea (HU); group 2, alkylating agents (ALK); group 3, ALK + HU sequentially or in combination; and group 4, anagrelide (ANA) and/or α-interferon (IFN) only...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544690/deficiency-of-complement-1r-subcomponent-in-early-onset-sle-role-for-disease-modifying-alleles-in-a-monogenic-disease
#3
Erkan Demirkaya, Qing Zhou, Carolyne K Smith, Michael J Ombrello, Natalie Deuitch, Wanxia L Tsai, Patrycja Hoffmann, Elaine F Remmers, Masaki Takeuchi, Yong Hwan Park, JaeJin Chae, Kenan Barut, Dogan Simsek, Amra Adrovic, Sezgin Sahin, Salim Caliskan, Settara C Chandrasekharappa, Sarfaraz A Hasni, Amanda K Ombrello, Massimo Gadina, Daniel L Kastner, Mariana J Kaplan, Ozgur Kasapcopur, Ivona Aksentijevich
OBJECTIVE: To identify a genetic cause of early-onset systemic lupus erythematosus (SLE) in a large consanguineous family from Turkey and to study the mechanisms of disease. METHODS: We performed whole exome sequencing (WES) and SNP array genotyping in affected and unaffected family members. Protein studies, gene expression, cytokine profiling, neutrophil extracellular trap formation, and presence of low-density granulocytes were evaluated in patient primary cells and serum samples...
May 23, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28544524/increase-of-cells-expressing-pd-1-and-pd-l1-and-enhancement-of-ifn-%C3%AE-production-via-pd-1-pd-l1-blockade-in-bovine-mycoplasmosis
#4
Shinya Goto, Satoru Konnai, Tomohiro Okagawa, Asami Nishimori, Naoya Maekawa, Satoshi Gondaira, Hidetoshi Higuchi, Masateru Koiwa, Motoshi Tajima, Junko Kohara, Satoshi Ogasawara, Yukinari Kato, Yasuhiko Suzuki, Shiro Murata, Kazuhiko Ohashi
INTRODUCTION: Bovine mycoplasma, chiefly Mycoplasma bovis, is a pathogen that causes pneumonia, mastitis, arthritis, and otitis media in cattle. This pathogen exerts immunosuppressive effects, such as the inhibition of interferon production. However, the mechanisms involved in bovine mycoplasmosis have not been fully elucidated. In this study, we investigated the role of the programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway in immunosuppression in bovine mycoplasmosis...
May 24, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28543170/specific-activation-of-cd4-cd8-double-negative-t-cells-by-t-cruzi-derived-glycolipids-induces-a-pro-inflammatory-profile-associated-with-cardiomyopathy-in-chagas-patients
#5
Lívia Silva Araújo Passos, Luísa Mourão Dias Magalhães, Rodrigo Pedro Soares, Alexandre F Marques, Maria do Carmo Pereira Nunes, Kenneth J Gollob, Walderez Ornelas Dutra
Cardiomyopathy is the most severe outcome of Chagas disease, causing over 12,000 deaths/year. Immune cells participate in cardiomyopathy development either by direct tissue destruction, or by driving inflammation. We have shown that CD4-CD8- (double negative - DN) T cells are major sources of inflammatory and anti-inflammatory cytokines, associated with the cardiac (CARD) and indeterminate (IND) forms of Chagas disease, respectively. Here, we sought to identify Trypanosoma cruzi derived components that lead to activation of DN T cells in Chagas patients...
May 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28542569/fas-associated-factor-1-positively-regulates-type-i-interferon-response-to-rna-virus-infection-by-targeting-nlrx1
#6
Jae-Hoon Kim, Min-Eun Park, Chamilani Nikapitiya, Tae-Hwan Kim, Md Bashir Uddin, Hyun-Cheol Lee, Eunhee Kim, Jin Yeul Ma, Jae U Jung, Chul-Joong Kim, Jong-Soo Lee
FAS-associated factor-1 (FAF1) is a component of the death-inducing signaling complex involved in Fas-mediated apoptosis. It regulates NF-κB activity, ubiquitination, and proteasomal degradation. Here, we found that FAF1 positively regulates the type I interferon pathway. FAF1gt/gt mice, which deficient in FAF1, and FAF1 knockdown immune cells were highly susceptible to RNA virus infection and showed low levels of inflammatory cytokines and type I interferon (IFN) production. FAF1 was bound competitively to NLRX1 and positively regulated type I IFN signaling by interfering with the interaction between NLRX1 and MAVS, thereby freeing MAVS to bind RIG-I, which switched on the MAVS-RIG-I-mediated antiviral signaling cascade...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542482/down-regulation-of-macrophage-ifngr1-exacerbates-systemic-l-monocytogenes-infection
#7
Emily M Eshleman, Christine Delgado, Staci J Kearney, Rachel S Friedman, Laurel L Lenz
Interferons (IFNs) target macrophages to regulate inflammation and resistance to microbial infections. The type II IFN (IFNγ) acts on a cell surface receptor (IFNGR) to promote gene expression that enhance macrophage inflammatory and anti-microbial activity. Type I IFNs can dampen macrophage responsiveness to IFNγ and are associated with increased susceptibility to numerous bacterial infections. The precise mechanisms responsible for these effects remain unclear. Type I IFNs silence macrophage ifngr1 transcription and thus reduce cell surface expression of IFNGR1...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542438/chemically-induced-disseminated-pythiosis-in-balb-c-mice-a-new-experimental-model-for-pythium-insidiosum-infection
#8
Juliana S M Tondolo, Érico S Loreto, Pauline C Ledur, Francielli P K Jesus, Taiara M Silva, Glaucia D Kommers, Sydney H Alves, Janio M Santurio
Pythiosis is a severe and life-threatening disease that affects humans and various animal species. We report a model of vascular/disseminated pythiosis occurring after subcutaneous inoculation of 2 x 104 Pythium insidiosum zoospores/mL in immunocompromised BALB/c mice. For this model, we carried out two rounds of experiments. First, we evaluated two protocols of immunosuppression before inoculation: cyclophosphamide at 150 mg/kg (CYP group) and cyclophosphamide 200 mg/kg plus hydrocortisone acetate at 250 mg/kg (CYP+HCA group)...
2017: PloS One
https://www.readbyqxmd.com/read/28542326/the-murine-cytomegalovirus-m35-protein-antagonizes-type-i-ifn-induction-downstream-of-pattern-recognition-receptors-by-targeting-nf-%C3%AE%C2%BAb-mediated-transcription
#9
Baca Chan, Vladimir Gonçalves Magalhães, Niels A W Lemmermann, Vanda Juranić Lisnić, Markus Stempel, Kendra A Bussey, Elisa Reimer, Jürgen Podlech, Stefan Lienenklaus, Matthias J Reddehase, Stipan Jonjić, Melanie M Brinkmann
The type I interferon (IFN) response is imperative for the establishment of the early antiviral immune response. Here we report the identification of the first type I IFN antagonist encoded by murine cytomegalovirus (MCMV) that shuts down signaling following pattern recognition receptor (PRR) sensing. Screening of an MCMV open reading frame (ORF) library identified M35 as a novel and strong negative modulator of IFNβ promoter induction following activation of both RNA and DNA cytoplasmic PRR. Additionally, M35 inhibits the proinflammatory cytokine response downstream of Toll-like receptors (TLR)...
May 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542321/early-protection-events-in-swine-immunized-with-an-experimental-live-attenuated-classical-swine-fever-marker-vaccine-flagt4g
#10
Lauren G Holinka, Vivian O'Donnell, Guillermo R Risatti, Paul Azzinaro, Jonathan Arzt, Carolina Stenfeldt, Lauro Velazquez-Salinas, Jolene Carlson, Douglas P Gladue, Manuel V Borca
Prophylactic vaccination using live attenuated classical swine fever (CSF) vaccines has been a very effective method to control the disease in endemic regions and during outbreaks in previously disease-free areas. These vaccines confer effective protection against the disease at early times post-vaccination although the mechanisms mediating the protection are poorly characterized. Here we present the events occurring after the administration of our in-house developed live attenuated marker vaccine, FlagT4Gv...
2017: PloS One
https://www.readbyqxmd.com/read/28541302/the-long-noncoding-rna-lnc-egfr-stimulates-t-regulatory-cells-differentiation-thus-promoting-hepatocellular-carcinoma-immune-evasion
#11
Runqiu Jiang, Junwei Tang, Yun Chen, Lei Deng, Jie Ji, Yu Xie, Ke Wang, Wei Jia, Wen-Ming Chu, Beicheng Sun
Long noncoding RNAs play a pivotal role in T-helper cell development but little is known about their roles in Treg differentiation and functions during the progression of hepatocellular carcinoma (HCC). Here, we show that lnc-epidermal growth factor receptor (EGFR) upregulation in Tregs correlates positively with the tumour size and expression of EGFR/Foxp3, but negatively with IFN-γ expression in patients and xenografted mouse models. Lnc-EGFR stimulates Treg differentiation, suppresses CTL activity and promotes HCC growth in an EGFR-dependent manner...
May 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28540834/the-cryo-thermal-therapy-induced-il-6-rich-acute-pro-inflammatory-response-promoted-dcs-phenotypic-maturation-as-the-prerequisite-to-cd4-t-cell-differentiation
#12
Kun Liu, Kun He, Ting Xue, Ping Liu, Lisa X Xu
In our previous studies, a novel tumor therapeutic modality of the cryo-thermal therapy has been developed leading to long-term survival in 4T1 murine mammary carcinoma model. The cryo-thermal therapy induced the strong acute inflammatory response and IL-6 was identified in an acute profile. In this study, we found that the cryo-thermal therapy triggered robust acute inflammatory response with high expression of IL-6 locally and systemically. The phenotypic maturation of dendritic cells (DCs) was induced by acute IL-6 following the treatment...
May 17, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540823/the-effects-of-hyperthermia-on-the-immunomodulatory-properties-of-human-umbilical-cord-vein-mesenchymal-stem-cells-mscs
#13
Shilan Hesami, Mehdi Mohammadi, Mohamad Ali Rezaee, Ali Jalili, Mohammad Reza Rahmani
PURPOSE: Hyperthermia can modulate inflammation and the immune response. Based on the recruitment of mesenchymal stem cells (MSCs) to inflamed tissues and the immunomodulatory properties of these cells, the aim of this study was to examine the effects of hyperthermia on the immunomodulatory properties of MSCs in a mixed lymphocyte reaction (MLR). MATERIALS AND METHODS: Passages 4-6 of human umbilical cord vein mesenchymal stem cells were co-cultured in a two-way MLR...
May 19, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540757/association-of-tuberculosis-status-with-neurologic-disease-and-immune-response-in-htlv-1-infection
#14
Anselmo Souza, Natália Carvalho, Yuri Neves, Silvane Braga Santos, Maria de Lourdes Bastos, Sergio Arruda, Eduardo Martins Netto, Marshall Glesby, Edgar Carvalho
The human T-cell lymphotropic virus type 1 (HTLV-1) is the etiologic agent of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). HTLV-1 infected individuals have increased susceptibility to Mycobacterium tuberculosis infection but the influence of tuberculosis on the course of HTLV-1 infection is unknown. The aim of this study was to evaluate the influence of tuberculosis on immunological, virologic, and neurologic features of HTLV-1 infection. This is a retrospective analysis of individuals enrolled in a cohort study from an HTLV-1 clinic who were evaluated for past or latent tuberculosis and classified clinically as HTLV-1 carriers, probable HAM/TSP and definite HAM/TSP...
May 25, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28540600/microglial-interferon-signaling-and-white-matter
#15
Ashley McDonough, Richard V Lee, Jonathan R Weinstein
Microglia, the resident immune cells of the CNS, are primary regulators of the neuroimmune response to injury. Type I interferons (IFNs), including the IFNαs and IFNβ, are key cytokines in the innate immune system. Their activity is implicated in the regulation of microglial function both during development and in response to neuroinflammation, ischemia, and neurodegeneration. Data from numerous studies in multiple sclerosis (MS) and stroke suggest that type I IFNs can modulate the microglial phenotype, influence the overall neuroimmune milieu, regulate phagocytosis, and affect blood-brain barrier integrity...
May 25, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28540167/t-cell-associated-immunoregulation-and-antiviral-effect-of-oxymatrine-in-hydrodynamic-injection-hbv-mouse-model
#16
Xiuxiu Sang, Ruilin Wang, Yanzhong Han, Cong'en Zhang, Honghui Shen, Zhirui Yang, Yin Xiong, Huimin Liu, Shijing Liu, Ruisheng Li, Ruichuang Yang, Jiabo Wang, Xuejun Wang, Zhaofang Bai, Xiaohe Xiao
Although oxymatrine (OMT) has been shown to directly inhibit the replication of hepatitis B virus (HBV) in vitro, limited research has been done with this drug in vivo. In the present study, the antiviral effect of OMT was investigated in an immunocompetent mouse model of chronic HBV infection. The infection was achieved by tail vein injection of a large volume of DNA solution. OMT (2.2, 6.7 and 20 mg/kg) was administered by daily intraperitoneal injection for 6 weeks. The efficacy of OMT was evaluated by the levels of HBV DNA, hepatitis B surface antigen (HBsAg), hepatitis B e antigen (HBeAg) and hepatitis B core antigen (HBcAg)...
May 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28540091/a-severe-case-of-lymphomatoid-papulosis-type-e-successfully-treated-with-interferon-alfa-2a
#17
Aslı Bilgiç Temel, Betül Unal, Hatice Erdi Şanlı, Şeniz Duygulu, Soner Uzun
Lymphomatoid papulosis (LyP) is a benign papulonodular skin eruption with histologic features of malignant lymphoma. A new variant of LyP which was termed "type E" was recently described with similar clinical and histological features to angiocentric and angiodestructive T-cell lymphoma. LyP type E is characterized with recurrent papulonodular lesions which rapidly turn into hemorrhagic necrotic ulcers and spontaneous regression by leaving a scar. None of the available treatment modalities affects the natural course of LyP...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/28539950/association-of-changes-in-mood-status-and-psychosocial-well-being-with-depression-during-interferon-based-treatment-for-hepatitis-c
#18
Jung-Seok Choi, Won Kim, Bo Kyung Sohn, Jun-Young Lee, Hee Yeon Jung, Sohee Oh, Sae Kyoung Joo, Hwi Young Kim, Yong Jin Jung
OBJECTIVE: The aims of this prospective study were to investigate temporal changes in mood status and distress level, as well as the development of depression, during pegylated interferon (PEG-IFN)-based treatment of patients with chronic hepatitis C (CHC). We also explored whether baseline demographic, psychiatric, and personality traits predicted the evolution of depression. METHODS: CHC patients without depression were screened with laboratory tests; psychiatric interviews; and evaluations of mood symptoms, level of distress, and personality traits...
May 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28539888/safety-and-immunogenicity-of-a-human-epidermal-growth-factor-receptor-1-her1-based-vaccine-in-prostate-castration-resistant-carcinoma-patients-a-dose-escalation-phase-i-study-trial
#19
Iraida Caballero, Lazaro E Aira, Anabel Lavastida, Xitlally Popa, Javier Rivero, Joaquín González, Mónica Mesa, Narjara González, Kelly Coba, Patricia Lorenzo-Luaces, Barbara Wilkinson, Yuliannis Santiesteban, Yanela Santiesteban, Mayelin Troche, Eduardo Suarez, Tania Crombet, Belinda Sánchez, Angel Casacó, Amparo Macías, Zaima Mazorra
Metastatic castration-resistant prostate cancer (CRPC) remains incurable due to the lack of effective therapies. Activation of the human epidermal growth factor receptor 1 (HER1) in prostate cancer contributes to metastatic progression as well as to disease relapse. Here, we determined the toxicity and immunogenicity of a HER1-based cancer vaccine in CRPC patients included in a phase I clinical trial. CRPC patients (n = 24) were intramuscularly vaccinated with HER1 vaccine consisting of the extracellular domain of HER1 molecule (ECD) and very small size proteoliposome from Neisseria meningitidis (VSSP) and Montanide ISA-51 VG as adjuvants...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28539815/increase-of-soluble-programmed-cell-death-ligand-1-in-patients-with-chronic-hepatitis-c
#20
Satoshi Yamagiwa, Toru Ishikawa, Nobuo Waguri, Soichi Sugitani, Kenya Kamimura, Atsunori Tsuchiya, Masaaki Takamura, Hirokazu Kawai, Shuji Terai
Objectives: To determine whether the soluble programmed cell death ligand 1 (sPD-L1) levels in patients with chronic hepatitis C (CHC) are associated with the clinical features of the disease and the efficacy of treatment, including interferon (IFN)-α. Methods: We investigated the sPD-L1 levels in the sera of 80 genotype 1b Japanese patients with CHC who underwent 12 weeks of telaprevir (TVR)- or simeprevir (SMV)-based triple therapy followed by 12 weeks of dual therapy with pegylated IFN-α plus ribavirin...
2017: International Journal of Medical Sciences
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