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Autologous priming

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https://www.readbyqxmd.com/read/28318765/in-vivo-electroporation-in-dna-vlp-prime-boost-preferentially-enhances-hiv-1-envelope-specific-igg2a-neutralizing-antibody-and-cd8-t-cell-responses
#1
Xun Huang, Qianqian Zhu, Xiaoxing Huang, Lifei Yang, Yufeng Song, Ping Zhu, Paul Zhou
Although in vivo electroporation (EP) has been utilized to improve immunogenicity in DNA vaccines alone or in prime-boost regimens with both proteins and viral-vectors, no studies on in vivo EP in DNA-VLP prime-boost regimens against HIV-1 have been reported. Previously we developed stably transfected Drosophila S2 clones to produce HIV-1 virus-like particles (VLP) and demonstrated that priming mice twice with DNA plasmids encoding HIV-1 gp120 and gag and boosting twice with HIV-1 VLP (i.e. DDVV immunization) elicited both envelope-specific antibody and envelope and gag-specific CD8 T cell responses...
March 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28218439/the-effects-of-exogenous-fatty-acids-and-niacin-on-human-monocyte-macrophage-plasticity
#2
Sergio Montserrat-de la Paz, Dolores Rodriguez, Magdalena P Cardelo, Maria C Naranjo, Beatriz Bermudez, Rocio Abia, Francisco J G Muriana, Sergio Lopez
SCOPE: Macrophage plasticity allows adapting to different environments, having a dual activity in inflammatory-related diseases. Our hypothesis is that the type of dietary fatty acids into human postprandial triglyceride-rich lipoproteins (TRLs), alone or in combination with niacin (vitamin B3), could modulate the plasticity of monocytes-macrophages. METHODS AND RESULTS: We isolated TRLs at the postprandial peak from blood samples of healthy volunteers after the ingestion of a meal rich in saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs) or MUFAs plus omega-3 long-chain polyunsaturated fatty acids (LCPUFAs)...
February 20, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28182150/evaluation-of-a-biosimilar-granulocyte-colony-stimulating-factor-filgrastim-xm02-for-peripheral-blood-stem-cell-mobilization-and-transplantation-a-single-center-experience-in-japan
#3
Hideaki Yoshimura, Masaaki Hotta, Takahisa Nakanishi, Shinya Fujita, Aya Nakaya, Atsushi Satake, Tomoki Ito, Kazuyoshi Ishii, Shosaku Nomura
BACKGROUND: Biosimilar granulocyte colony-stimulating factor (G-CSF) has recently been introduced into clinical practice. G-CSFs are used to mobilize CD34(+) cells and accelerate engraftment after transplantation. However, in Asia, particularly in Japan, data for peripheral blood stem cell (PBSC) mobilization by this biosimilar G-CSF are currently lacking. Therefore, the clinical efficacy and safety of biosimilar G-CSF for hematopoietic stem cell transplantation needs to be evaluated in a Japanese context...
2017: Journal of Blood Medicine
https://www.readbyqxmd.com/read/28123744/complete-response-to-azacitidine-priming-and-nab-paclitaxel-in-non-hodgkin-lymphoma-resistant-to-biochemotherapy
#4
Randy C Bowen, Andrew W Hahn, Thomas W Butler, Hung T Khong
The standard of care for first-line therapy in diffuse large B-cell lymphoma (DLBCL) is the rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) regimen. For patients who fail to respond, have an incomplete response or relapse, numerous effective options exists besides salvage cisplatin-based regimen and autologous stem cell therapy. Even with this approach, the outcome remains very poor for this group of patients. The present case illustrates a 55-year-old woman diagnosed with DLBCL, who experienced an early incomplete response, later progression during treatment with the R-CHOP regimen...
January 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28101702/bone-marrow-very-small-embryonic-like-stem-cells-new-generation-of-autologous-cell-therapy-soon-ready-for-prime-time
#5
EDITORIAL
David M Smadja
Very small embryonic-like stem cells (VSELs) are major pluripotent stem cells described in human and mouse. In this issue of Stem Cell Reviews and Reports, Shaikh and colleagues show in a valuable work that mouse bone marrow collected after 5FU treatment contains VSELs able to undergo in vitro multi-lineage differentiation into cells from all three germ layers and also in germ and hematopoietic cells. These findings are robust since no confounding factor such as feeder cell fusion with VSELs can occur here...
January 18, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/27994166/intratumoral-delivery-of-immunotherapy-act-locally-think-globally
#6
REVIEW
M Angela Aznar, Nicola Tinari, Antonio J Rullán, Alfonso R Sánchez-Paulete, María E Rodriguez-Ruiz, Ignacio Melero
Immune mechanisms have evolved to cope with local entry of microbes acting in a confined fashion but eventually inducing systemic immune memory. Indeed, in situ delivery of a number of agents into tumors can mimic in the malignant tissue the phenomena that control intracellular infection leading to the killing of infected cells. Vascular endothelium activation and lymphocyte attraction, together with dendritic cell-mediated cross-priming, are the key elements. Intratumoral therapy with pathogen-associated molecular patterns or recombinant viruses is being tested in the clinic...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27979840/early-effector-t-lymphocytes-coexpress-multiple-inhibitory-receptors-in-primary-non-small-cell-lung-cancer
#7
Elena Tassi, Giulia Grazia, Claudia Vegetti, Ilaria Bersani, Giulia Bertolini, Alessandra Molla, Paola Baldassari, Francesca Andriani, Luca Roz, Gabriella Sozzi, Ugo Pastorino, Roberta Mortarini, Andrea Anichini
Clinical efficacy of PD-1/PD-L1 targeting relies upon the reactivation of tumor-specific but functionally impaired PD-1(+) T cells present before therapy. Thus, analyzing early-stage primary tumors may reveal the presence of T cells that are not yet functionally impaired. In this study, we report that activated (HLA-DR(+)) T cells with an effector memory (TEM) profile are enriched in such lesions. Tumor-infiltrating lymphocytes coexpressed PD-1 with the inhibitory receptors TIM-3, CTLA-4, LAG-3, and TIGIT, but also displayed a recently activated, nonexhausted phenotype...
December 15, 2016: Cancer Research
https://www.readbyqxmd.com/read/27938493/thrombospondin-1-derived-peptide-rfyvvmwk-improves-the-adhesive-phenotype-of-cd34-cells-from-atherosclerotic-patients-with-type-2-diabetes
#8
Sylvie Cointe, Éric Rhéaume, Catherine Martel, Olivier Blanc-Brude, Evemie Dubé, Florence Sabatier, Françoise Dignat-George, Jean-Claude Tardif, Arnaud Bonnefoy
CD34+ progenitor cells are growing in use for vascular repair. However, in diabetic individuals with cardiovascular diseases, these cells have dysfunctional engraftment capabilities, which compromise their use for autologous cell therapy. The thrombospondin-1-derived peptide RFYVVMWK has previously been reported to stimulate cell adhesiveness through CD47 and integrin activation pathways. Our aim was to test whether RFYVVMWK preconditioning could modulate CD34+ cell phenotype and enhance its proadhesive properties in diabetic patients...
February 16, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/27933299/strategy-to-prime-the-host-and-cells-to-augment-therapeutic-efficacy-of-progenitor-cells-for-patients-with-myocardial-infarction
#9
REVIEW
Jeehoon Kang, Tae-Won Kim, Jin Hur, Hyo-Soo Kim
Cell therapy in myocardial infarction (MI) is an innovative strategy that is regarded as a rescue therapy to repair the damaged myocardium and to promote neovascularization for the ischemic border zone. Among several stem cell sources for this purpose, autologous progenitors from bone marrow or peripheral blood would be the most feasible and safest cell-source. Despite the theoretical benefit of cell therapy, this method is not widely adopted in the actual clinical practice due to its low therapeutic efficacy...
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27927646/bcr-abl-specific-t-cell-therapy-in-ph-all-patients-on-tyrosine-kinase-inhibitors
#10
Patrizia Comoli, Sabrina Basso, Giovanni Riva, Patrizia Barozzi, Ilaria Guido, Antonella Gurrado, Giuseppe Quartuccio, Laura Rubert, Ivana Lagreca, Daniela Vallerini, Fabio Forghieri, Monica Morselli, Paola Bresciani, Angela Cuoghi, Ambra Paolini, Elisabetta Colaci, Roberto Marasca, Antonio Cuneo, Lorenzo Iughetti, Tommaso Trenti, Franco Narni, Robin Foà, Marco Zecca, Mario Luppi, Leonardo Potenza
Although the emergence of bone marrow (BM)-resident (p190)BCR-ABL-specific T lymphocytes has been correlated with hematologic and cytogenetic remissions in patients with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph(+) ALL) undergoing maintenance tyrosine-kinase inhibitor treatment, little is known about the possibility of culturing these cells ex vivo and using them in T-cell therapy strategies. We investigated the feasibility of expanding/priming (p190)BCR-ABL-specific T cells in vitro by stimulation with dendritic cells pulsed with (p190)BCR-ABL peptides derived from the BCR-ABL junctional region and alternative splicing, and of adoptively administering them to patients with relapsed disease...
February 2, 2017: Blood
https://www.readbyqxmd.com/read/27913524/cellular-and-vaccine-immunotherapy-for-multiple-myeloma
#11
Alfred L Garfall, Edward A Stadtmauer
Allogeneic hematopoietic cell transplantation and donor lymphocyte infusion for multiple myeloma (MM) can induce graft-versus-myeloma immunity and long-term survivorship, but limited efficacy and associated toxicities have prevented its widespread use. Cellular immunotherapies and vaccines seek to induce more specific, reliable, and potent antimyeloma immune responses with less treatment-related risk than is possible with allogeneic transplantation. Advances in molecular biology, and basic and applied immunology, have led to promising approaches such as genetically engineered T cells with chimeric antigen receptors and T-cell receptors targeting myeloma-specific epitopes, vaccine primed ex vivo expanded autologous T cells, expanded marrow-infiltrating lymphocytes, and plasma cell/dendritic cell fusion vaccines...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27874054/combinational-immunotherapy-with-allo-dribble-vaccines-and-anti-ox40-co-stimulation-leads-to-generation-of-cross-reactive-effector-t-cells-and-tumor-regression
#12
Guangjie Yu, Yuhuan Li, Zhihua Cui, Nicholas P Morris, Andrew D Weinberg, Bernard A Fox, Walter J Urba, Lixin Wang, Hong-Ming Hu
It is well-known that vaccines comprising of irradiated whole tumor cells or tumor-derived heat shock proteins can generate tumor-specific immune responses. In contrast, we showed recently that vaccines composed of autophagosomes (DRibbles) derived from syngeneic sarcomas could induce cross-reactive T-cell responses and cross-protection against the tumor. This unusual property of DRibbles was related to the selective recruitment of defective ribosomal products (DRiPs) and other short-lived proteins (SLiPs) into autophagosomes via sequestosome (SQSTM1, p62) mediated association of ubiquitinated SLiPs to the autophagy gene product LC3...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867632/the-modest-outcome-of-clinical-trials-with-bone-marrow-cells-for-myocardial-repair-is-the-autologous-source-of-cells-the-prime-culprit
#13
COMMENT
Muhammad Siddique Shahid, Wael Lasheen, Khawaja Husnain Haider
No abstract text is available yet for this article.
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27863558/development-of-an-autologous-canine-cancer-vaccine-system-for-resectable-malignant-tumors-in-dogs
#14
J R Yannelli, R Wouda, T J Masterson, M G Avdiushko, D A Cohen
While conventional therapies exist for canine cancer, immunotherapies need to be further explored and applied to the canine setting. We have developed an autologous cancer vaccine (K9-ACV), which is available for all dogs with resectable disease. K9-ACV was evaluated for safety and immunogenicity for a variety of cancer types in a cohort of companion dogs under veterinary care. The autologous vaccine was prepared by enzymatic digestion of solid tumor biopsies. The resultant single cell suspensions were then UV-irradiated resulting in immunogenic cell death of the tumor cells...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27863082/allogeneic-platelet-rich-plasma-affects-monocyte-differentiation-to-dendritic-cells-causing-an-anti-inflammatory-microenvironment-putatively-fostering-the-wound-healing
#15
Andrea Papait, Ranieri Cancedda, Maddalena Mastrogiacomo, Alessandro Poggi
Autologous platelet rich plasma (PRP) is clinically used to induce repair of different tissues through the release of bioactive molecules. In some patients, the production of an efficient autologous PRP is unfeasible due to their compromised health. We developed an allogeneic PRP mismatched for AB0 and Rh antigens. To broadcast its clinical applications avoiding side effects the outcome of allogeneic PRP on immune response should be defined. Thus, we investigated whether PRP affected the differentiation of peripheral blood monocytes to dendritic cells upon stimulation with granulocyte monocyte colony stimulating factor and interleukin-4...
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27846835/equine-dendritic-cells-generated-with-horse-serum-have-enhanced-functionality-in-comparison-to-dendritic-cells-generated-with-fetal-bovine-serum
#16
Anja Ziegler, Helen Everett, Eman Hamza, Mattia Garbani, Vinzenz Gerber, Eliane Marti, Falko Steinbach
BACKGROUND: Dendritic cells are professional antigen-presenting cells that play an essential role in the initiation and modulation of T cell responses. They have been studied widely for their potential clinical applications, but for clinical use to be successful, alternatives to xenogeneic substances like fetal bovine serum (FBS) in cell culture need to be found. Protocols for the generation of dendritic cells ex vivo from monocytes are well established for several species, including horses...
November 15, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27845055/is-stem-cell-therapy-ready-for-prime-time-in-treatment-of-inflammatory-bowel-diseases
#17
Christopher J Hawkey, Daniel W Hommes
Autologous hematopoietic stem cell transplantation (HSCT) and mesenchymal stromal cell therapy have been proposed for patients with refractory Crohn's disease (CD) and fistulizing CD, respectively. Will these highly advanced techniques be available only for select patients, at specialized centers, or is further clinical development justified, with the aim of offering widespread, more definitive therapeutic options for often very difficult to treat disease? Patients with CD who are eligible for HSCT have typically been failed by most approved therapies, have undergone multiple surgeries, and have coped with years of disease activity and poor quality of life...
February 2017: Gastroenterology
https://www.readbyqxmd.com/read/27812850/generation-of-t-cell-effectors-using-tumor-cell-loaded-dendritic-cells-for-adoptive-t-cell-therapy
#18
Katerina Vavrova, Petra Vrabcova, Dominik Filipp, Jirina Bartunkova, Rudolf Horvath
Adoptive T cell transfer has been shown to be an effective method used to boost tumor-specific immune responses in several types of malignancies. In this study, we set out to optimize the ACT protocol for the experimental treatment of prostate cancer. The protocol includes a pre-stimulation step whereby T cells were primed with autologous dendritic cells loaded with the high hydrostatic pressure-treated prostate cancer cell line, LNCaP. Primed T cells were further expanded in vitro with anti-CD3/CD28 Dynabeads in the WAVE bioreactor 2/10 system and tested for cytotoxicity...
December 2016: Medical Oncology
https://www.readbyqxmd.com/read/27741149/blood-conservation-strategies-in-cardiac-valve-replacement-a-retrospective-analysis-of-1645-patients
#19
Junnan Zheng, Liangwei Chen, Linfeng Qian, Jianjie Jiang, Yinglian Chen, Jue Xie, Liping Shi, Yiming Ni, Haige Zhao
We aimed to evaluate whether blood conservation strategies including intraoperative autologous donation (IAD) could reduce perioperative blood transfusion for patients undergoing cardiac valve replacement including mitral valve replacement, aortic valve replacement (AVR), and double valve replacement (DVR).A total of 726 patients were studied over a 3-year period (2011-2013) after the implementation of IAD and were compared with 919 patients during the previous 36-month period (January 2008-December 2010). The method of small-volume retrograde autologous priming, strict blood transfusion standard together with IAD constituted a progressive blood-saving strategy...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27729702/blood-conservation-a-team-sport
#20
REVIEW
Donald S Likosky, Timothy A Dickinson, Theron A Paugh
Cardiac surgery accounts for between 15% and 20% of all blood product utilization in the United States. A body of literature suggests that patients who are exposed to even small quantities of blood have an increased risk of morbidity and mortality, even after adjusting for pre-operative risk. Despite this body of literature supporting a restrictive blood management strategy, wide variability in transfusion rates exist across institutions. Recent blood management guidelines have shed light on a number of potentially promising blood management strategies, including acute normovolemic hemodilution (ANH) and retrograde autologous priming (RAP)...
September 2016: Journal of Extra-corporeal Technology
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