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Calreticulin

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https://www.readbyqxmd.com/read/28801532/activation-of-nkx2-5-calr-p53-signaling-pathway-by-hyperglycemia-induces-cardiac-remodeling-and-dysfunction-in-adult-zebrafish
#1
Sun Yanyi, Wang Qiuyun, Fang Yuehua, Wu Chunfang, Lu Guoping, Chen Zhenyue
Hyperglycemia is an independent risk factor for diabetic cardiomyopathy in humans; however, the underlying mechanisms have not been thoroughly elucidated. Zebrafish (Danio rerio) was used in this study as a novel vertebrate model to explore the signaling pathways of human adult cardiomyopathy. Hyperglycemia was induced by alternately immersing adult zebrafish in a glucose solution or water. The hyperglycemic fish gradually exhibited some hallmarks of cardiomyopathy such as myocardial hypertrophy and apoptosis, myofibril loss, fetal gene reactivation, and severe arrhythmia...
August 11, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28801364/cd47-is-not-over-expressed-in-fibrolamellar-hepatocellular-carcinoma
#2
Tabitha Cooney, Michael C Wei, Arun Rangaswami, Lei Xu, Julien Sage, Florette K Hazard
OBJECTIVES: CD47 is a transmembrane receptor that inhibits phagocytosis. Over-expression of CD47 is associated with an increased risk of tumor growth and metastasis. Clinical trials based on anti-CD47 therapy in adults are underway in a variety of malignancies. CD47 has been shown to be over-expressed in conventional hepatocellular carcinoma (HCC), a common liver tumor in adults. To our knowledge, there have been no studies to evaluate CD47 expression in the fibrolamellar subtype of HCC (FL-HCC), common in children and young adults...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28800637/biologically-active-recombinant-human-erythropoietin-expressed-in-hairy-root-cultures-and-regenerated-plantlets-of-nicotiana-tabacum-l
#3
Poornima Devi Gurusamy, Holger Schäfer, Siva Ramamoorthy, Michael Wink
Hairy root culture is a potential alternative to conventional mammalian cell culture to produce recombinant proteins due to its ease in protein recovery, low costs and absence of potentially human pathogenic contaminants. The current study focussed to develop a new platform of a hairy root culture system from Nicotiana tabacum for the production of recombinant human EPO (rhEPO), which is regularly produced in mammalian cells. The human EPO construct was amplified with C-terminal hexahistidine tag from a cDNA of Caco-2 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28782880/adaptive-changes-of-telocytes-in-the-urinary-bladder-of-patients-affected-by-neurogenic-detrusor-overactivity
#4
Chiara Traini, Maria-Simonetta Fausssone-Pellegrini, Daniele Guasti, Giulio Del Popolo, Jacopo Frizzi, Sergio Serni, Maria-Giuliana Vannucchi
Urinary bladder activity involves central and autonomic nervous systems and bladder wall. Studies on the pathogenesis of voiding disorders such as the neurogenic detrusor overactivity (NDO) due to suprasacral spinal cord lesions have emphasized the importance of an abnormal handling of the afferent signals from urothelium and lamina propria (LP). In the LP (and detrusor), three types of telocytes (TC) are present and form a 3D-network. TC are stromal cells able to form the scaffold that contains and organizes the connective components, to serve as guide for tissue (re)-modelling, to produce trophic and/or regulatory molecules, to share privileged contacts with the immune cells...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28772263/collectin-11-is-an-important-modulator-of-retinal-pigment-epithelial-cell-phagocytosis-and-cytokine-production
#5
Xia Dong, Weiju Wu, Liang Ma, Chengfei Liu, Mohajeet B Bhuckory, Liping Wang, Emeline F Nandrot, Heping Xu, Ke Li, Yizhi Liu, Wuding Zhou
In this paper, we report previously unknown roles for collectin-11 (CL-11, a soluble C-type lectin) in modulating the retinal pigment epithelial (RPE) cell functions of phagocytosis and cytokine production. We found that CL-11 and its carbohydrate ligand are expressed in both the murine and human neural retina; these resemble each other in terms of RPE and photoreceptor cells. Functional analysis of murine RPE cells showed that CL-11 facilitates the opsonophagocytosis of photoreceptor outer segments and apoptotic cells, and also upregulates IL-10 production...
August 4, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28771523/differential-expression-of-pathogenic-genes-of-entamoeba-histolytica-vs-e-dispar-in-a-model-of-infection-using-human-liver-tissue-explants
#6
Cecilia Ximénez, Enrique González, Miriam Nieves, Ulises Magaña, Patricia Morán, Marco Gudiño-Zayas, Oswaldo Partida, Eric Hernández, Liliana Rojas-Velázquez, Ma Carmen García de León, Héctor Maldonado
We sought to establish an ex vivo model for examining the interaction of E. histolytica with human tissue, using precision-cut liver slices (PCLS) from donated organs. E. histolytica- or E. dispar-infected PCLS were analyzed at different post-infection times (0, 1, 3, 24 and 48 h) to evaluate the relation between tissue damage and the expression of genes associated with three factors: a) parasite survival (peroxiredoxin, superoxide dismutase and 70 kDa heat shock protein), b) parasite virulence (EhGal/GalNAc lectin, amoebapore, cysteine proteases and calreticulin), and c) the host inflammatory response (various cytokines)...
2017: PloS One
https://www.readbyqxmd.com/read/28770174/the-novel-type-1-fimbriae-fimh-receptor-calreticulin-plays-a-role-in-salmonella-host-specificity
#7
Krzysztof Grzymajlo, Maciej Ugorski, Jaroslaw Suchanski, Anna E Kedzierska, Rafal Kolenda, Anna Jarzab, Agnieszka Biernatowska, Peter Schierack
It was suggested that minor differences in the structure of FimH are most likely associated with differences in its adhesion specificities and may determine the tropism of various Salmonella serovars to different species and tissues. We have recently shown that FimH adhesins from host-adapted serovars, e.g., Salmonella Choleraesuis (SCh), bind to other glycoprotein receptors compared to FimH from host-unrestricted Salmonella Enteritidis (SE). Here we identify porcine calreticulin expressed by swine intestinal cells as a host-specific receptor for SCh FimH adhesin, suggesting that such an interaction may contribute to SCh host specificity...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28763460/inhibitory-effects-and-mechanism-of-dihydroberberine-on-herg-channels-expressed-in-hek293-cells
#8
Dahai Yu, Lin Lv, Li Fang, Bo Zhang, Junnan Wang, Ge Zhan, Lei Zhao, Xin Zhao, Baoxin Li
The human ether-a-go-go-related gene (hERG) potassium channel conducts rapid delayed rectifier potassium currents (IKr) and contributes to phase III cardiac action potential repolarization. Drugs inhibit hERG channels by binding to aromatic residues in hERG helixes. Berberine (BBR) has multiple actions, and its hydrogenated derivative dihydroberberine (DHB) is a potential candidate for developing new drugs. Previous studies have demonstrated that BBR blocks hERG channels and prolongs action potential duration (APD)...
2017: PloS One
https://www.readbyqxmd.com/read/28761621/toxicity-and-immunogenicity-in-murine-melanoma-following-exposure-to-physical-plasma-derived-oxidants
#9
Sander Bekeschus, Katrin Rödder, Bob Fregin, Oliver Otto, Maxi Lippert, Klaus-Dieter Weltmann, Kristian Wende, Anke Schmidt, Rajesh Kumar Gandhirajan
Metastatic melanoma is an aggressive and deadly disease. Therapeutic advance has been achieved by antitumor chemo- and radiotherapy. These modalities involve the generation of reactive oxygen and nitrogen species, affecting cellular viability, migration, and immunogenicity. Such species are also created by cold physical plasma, an ionized gas capable of redox modulating cells and tissues without thermal damage. Cold plasma has been suggested for anticancer therapy. Here, melanoma cell toxicity, motility, and immunogenicity of murine metastatic melanoma cells were investigated following plasma exposure in vitro...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28751563/calreticulin-as-a-novel-b-cell-receptor-antigen-in-chronic-lymphocytic-leukemia
#10
Elisa Ten Hacken, Maria Gounari, Jaap Willem Back, Ekaterina Shimanovskaya, Lydia Scarfo, Ekaterina Kim, Jared Burks, Maurilio Ponzoni, Giuseppe Alvise Ramirez, William G Wierda, Zeev Estrov, Michael J Keating, Alessandra Ferrajoli, Kostas Stamatopoulos, Paolo Ghia, Jan A Burger
No abstract text is available yet for this article.
July 27, 2017: Haematologica
https://www.readbyqxmd.com/read/28747287/three-novel-calreticulin-mutations-in-two-turkish-patients
#11
Veysel Sabri Hançer, Hüseyin Tokgöz, Serkan Güvenç, Ümran Çalışkan, Murat Büyükdoğan
No abstract text is available yet for this article.
July 27, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28745444/comparison-of-the-proteomes-of-mouse-skin-derived-precursors-skps-and-skp-derived-fibroblasts-sfbs-by-itraq
#12
Yujie Mao, Lidan Xiong, Li Li
Skin-derived precursors (SKPs) can differentiate into fibroblasts. However, little is known about the molecular mechanism of the differentiation process. Our previous study has compared the transcriptomes of mouse SKPs and SKP- derived fibroblasts (SFBs) by RNA-Seq analysis and found some genes and signal pathways that might play important roles in the transition from SKPs to SFBs. Here, to further investigate the process by which SKPs differentiate into fibroblasts, we compared the proteomes between SKPs and SFBs using iTRAQ...
July 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28741795/a-novel-molecular-mechanism-of-cellular-transformation-via-a-mutant-molecular-chaperone-in-myeloproliferative-neoplasms
#13
REVIEW
Marito Araki, Norio Komatsu
Deregulation of the cytokine-receptor signaling pathway plays a significant role in tumorigenesis. Such deregulation is frequently caused by alterations in the genes involved in the signaling pathway. At the end of 2013, recurrent somatic mutations in the calreticulin (CALR) gene that encodes a molecular chaperone were identified in a subset of patients with Philadelphia-chromosome negative myeloproliferative neoplasms (MPNs). This review focuses on the role of CALR mutations in the oncogenic transformations observed in MPNs...
July 25, 2017: Cancer Science
https://www.readbyqxmd.com/read/28725653/calr-positive-myeloproliferative-disorder-in-a-patient-with-ph-positive-chronic-myeloid-leukemia-in-durable-treatment-free-remission-a-case-report
#14
Irene Dogliotti, Carmen Fava, Anna Serra, Enrico Gottardi, Filomena Daraio, Francesca Carnuccio, Emilia Giugliano, Monica Bocchia, Giuseppe Saglio, Giovanna Rege-Cambrin
Current diagnostic criteria for Philadelphia-negative myeloproliferative neoplasia (MPN) have been redefined by the discovery of Janus kinase 2 (JAK2), myeloproliferative leukemia (MPL) and calreticulin (CALR) genetic alterations. Only few cases of coexistence of CALR-mutated MPN and Philadelphia-positive chronic myeloid leukemia (CML) have been described so far. Here we report the case of a patient with CML diagnosed in 2001, treated with imatinib and pegylated interferon (IFN) frontline. She reached complete molecular remission (CMR) and discontinued imatinib, maintaining treatment free remission...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28725049/loss-of-calreticulin-uncovers-a-critical-role-for-calcium-in-regulating-cellular-lipid-homeostasis
#15
Wen-An Wang, Wen-Xin Liu, Serpen Durnaoglu, Sun-Kyung Lee, Jihong Lian, Richard Lehner, Joohong Ahnn, Luis B Agellon, Marek Michalak
A direct link between Ca(2+) and lipid homeostasis has not been definitively demonstrated. In this study, we show that manipulation of ER Ca(2+) causes the re-distribution of a portion of the intracellular unesterified cholesterol to a pool that is not available to the SCAP-SREBP complex. The SREBP processing pathway in ER Ca(2+) depleted cells remained fully functional and responsive to changes in cellular cholesterol status but differed unexpectedly in basal activity. These findings establish the role of Ca(2+) in determining the reference set-point for controlling cellular lipid homeostasis...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714945/impact-of-molecular-residual-disease-post-allografting-in-myelofibrosis-patients
#16
C Wolschke, A Badbaran, T Zabelina, M Christopeit, F Ayuk, I Triviai, A Zander, H Alchalby, U Bacher, B Fehse, N Kröger
We screened 136 patients with myelofibrosis and a median age of 58 years who underwent allogeneic stem cell transplantation (AHSCT) for molecular residual disease for JAKV617F (n=101), thrombopoietin receptor gene (MPL) (n=4) or calreticulin (CALR) (n=31) mutation in peripheral blood on day +100 and +180 after AHSCT. After a median follow-up of 78 months, the 5-year estimated overall survival was 60% (95% confidence interval (CI): 50-70%) and the cumulative incidence of relapse at 5 years was 26% (95% CI: 18-34%) for the entire study population...
July 17, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28714529/immunologic-responses-to-a-novel-dna-vaccine-targeting-human-papillomavirus-11-e6e7
#17
Julie Ahn, Shiwen Peng, Chien-Fu Hung, Richard B S Roden, Tzyy-Choou Wu, Simon R Best
OBJECTIVES/HYPOTHESIS: Recurrent respiratory papillomatosis (RRP) is a benign disease caused by human papillomavirus (HPV) types 6 and 11. Although a prophylactic vaccine against RRP is available, a therapeutic vaccine is needed to treat those already infected. The objective of our study was to design and test a DNA vaccine targeting HPV11 proteins. STUDY DESIGN: Preclinical scientific investigation. METHODS: A DNA vaccine encoding the HPV11 E6 and E7 genes linked to calreticulin (CRT) was generated...
July 17, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28693241/the-novel-immunomodulator-immunepotent-crp-combined-with-chemotherapy-agent-increased-the-rate-of-immunogenic-cell-death-and-prevented-melanoma-growth
#18
Maria Del Carmen Rodríguez-Salazar, Moises Armides Franco-Molina, Edgar Mendoza-Gamboa, Ana Carolina Martínez-Torres, Pablo Zapata-Benavides, Jose Sullivan López-González, Erika Evangelina Coronado-Cerda, Juan Manuel Alcocer-González, Reyes Silvestre Tamez-Guerra, Cristina Rodríguez-Padilla
Immunogenic cell death is a cell death modality that stimulates the immune system to combat cancer cells. IMMUNEPOTENT CRP (ICRP) is a mixture of substances of low molecular weight obtained from bovine spleens that exhibits in vitro cytotoxic activity on different tumor cell lines and modulates the immune response in vivo. The aim of the present study was to determine whether the cytotoxic effect of ICRP and its combination with oxaliplatin (OXP) on murine melanoma B16F10 cells was due to immunogenic cell death...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28676668/the-calreticulin-calr-exon-9-mutations-are-promising-targets-for-cancer-immune-therapy
#19
M O Holmström, E Martinenaite, S M Ahmad, Ö Met, C Friese, L Kjær, C H Riley, P Thor Straten, I M Svane, H C Hasselbalch, M H Andersen
The CALR exon 9 mutations are found in approximately 30% of patients with essential thrombocythemia and primary myelofibrosis. Recently, we reported spontaneous immune responses against the CALR mutations. Here, we describe that CALR-mutant (CALRmut)-specific T-cells are able to specifically recognize CALRmut cells. First, we established a T-cell culture specific for a CALRmut epitope. These specific T-cells were able to recognize several epitopes in the CALRmut C-terminus. Next, we established a CALRmut specific CD4(+) T-cell clone by limiting dilution...
July 5, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28673392/mechanisms-of-resistance-to-jak2-inhibitors-in-myeloproliferative-neoplasms
#20
REVIEW
Sara C Meyer
Myeloproliferative neoplasms are driven by activated JAK2 signaling due to somatic mutations in JAK2, the thrombopoietin receptor MPL or the chaperone calreticulin in hematopoietic stem/progenitor cells. JAK2 inhibitors have been developed, but despite clinical benefits, they do not signficantly reduce the mutant clone. Loss of response to JAK2 inhibitors occurs and several mechanisms of resistance, genetic and functional, have been identified. Resistance mutations have not been reported in MPN patients suggesting incomplete target inhibition...
August 2017: Hematology/oncology Clinics of North America
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