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Clinical immunology

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https://www.readbyqxmd.com/read/29148401/vitamin-d-and-systemic-lupus-erythematous-a-review-of-immunological-and-clinical-aspects
#1
REVIEW
Francesca Dall'Ara, Maurizio Cutolo, Laura Andreoli, Angela Tincani, Sabrina Paolino
OBJECTIVES: To review the relationships between vitamin D status and systemic lupus erythematosus (SLE) concerning immunological, clinical aspects and possible effects of supplementation in disease modulation. METHODS: The literature was reviewed up to January 2017 for studies regarding the epidemiology, pathogenesis, immunological aspects, clinical implications and supplementation strategies. The focus was mainly on studies with implications on every day clinical practice...
November 14, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29148014/unfavorable-clinical-implications-of-peripheral-blood-cd44-and-cd54-lymphocytes-in-patients-with-lung-cancer-undergoing-chemotherapy
#2
Zhuanbo Luo, Yun Wang, Yanru Lou, Chao Cao, Richard Hubbard, Ning Xu, Xiaoping Huang
BACKGROUND: There is an unmet need for identification of additional prognostic markers for lung cancer. The aim of this study was to identify novel clinical and immunological predictors of prognosis in lung cancer patients. METHODS: Lymphocyte subsets CD3+, CD4+, CD8+, CD4+/8+, CD25+, CD69+, CD44+ and CD54+ were quantified in peripheral blood using flow cytometry, for 203 newly diagnosed lung cancer patients and 120 healthy controls. RESULTS: The levels of CD3+, CD4+, CD8+, CD4+/CD8+ and CD69+ lymphocytes were significantly lower in patients with lung cancer compared with the healthy control group, while CD54+ and CD44+ lymphocytes were significantly higher...
November 15, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/29147628/trial-watch-adoptively-transferred-cells-for-anticancer-immunotherapy
#3
REVIEW
Carole Fournier, François Martin, Laurence Zitvogel, Guido Kroemer, Lorenzo Galluzzi, Lionel Apetoh
Immunotherapies aimed at strengthening immune effector responses against malignant cells are growing at exponential rates. Alongside, the impressive benefits obtained by patients with advanced melanoma who received adoptively transferred tumor-infiltrating lymphocytes (TILs) have encouraged the scientific community to pursue adoptive cell transfer (ACT)-based immunotherapy. ACT involves autologous or allogenic effector lymphocytes that are generally obtained from the peripheral blood or resected tumors, expanded and activated ex vivo, and administered to lymphodepleted patients...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147612/low-dose-post-transplant-cyclophosphamide-can-mitigate-gvhd-and-enhance-the-g-csf-atg-induced-gvhd-protective-activity-and-improve-haploidentical-transplant-outcomes
#4
Yu Wang, Ying-Jun Chang, Lu Chen, Lan-Ping Xu, Zhi-Lei Bian, Xiao-Hui Zhang, Chen-Hua Yan, Kai-Yan Liu, Xiao-Jun Huang
Use of high-dose, post-transplant cyclophosphamide (PTCy) results in low rates of graft-versus-host-disease (GVHD) and favorable immune reconstitution, although with higher rates of relapse and somewhat high rates of graft failure. We hypothesized that permissible dose reduction of PTCy might be feasible. The current study attempts to establish a murine model and focus on regulatory T cells (Tregs) to clarify the immunological mechanisms for GVHD prevention by low-dose PTCy. In addition, a prospective, clinical cohort study in haploidentical, T-cell replete transplantation is initiated to support the rational...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146441/combining-immunotherapies-for-the-treatment-of-prostate-cancer
#5
REVIEW
Jason M Redman, James L Gulley, Ravi A Madan
Sipuleucel-T, a therapeutic dendritic-cell vaccine, was Food and Drug Administration-approved for prostate cancer in 2010. No new immunotherapies for prostate cancer have been approved since. However, novel agents and combination approaches offer great promise for improving outcomes for prostate cancer patients. Here we review the latest developments in immunotherapy for prostate cancer. Sipuleucel-T has demonstrated a survival advantage of 4.1 months in metastatic castration-resistant prostate cancer. PSA-TRICOM (PROSTVAC), a prostate-specific antigen-targeted vaccine platform, showed evidence of clinical and immunologic efficacy in early-phase clinical trials, and results from a phase III trial in advanced disease are pending...
December 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29145972/cancer-immunotherapy-getting-brainy-visualizing-the-distinctive-cns-metastatic-niche-to-illuminate-therapeutic-resistance
#6
Mark Owyong, Niloufar Hosseini-Nassab, Gizem Efe, Alexander Honkala, Renske J E van den Bijgaart, Vicki Plaks, Bryan Ronain Smith
The advent of cancer immunotherapy (CIT) and its success in treating primary and metastatic cancer may offer substantially improved outcomes for patients. Despite recent advancements, many malignancies remain resistant to CIT, among which are brain metastases, a particularly virulent disease with no apparent cure. The immunologically unique niche of the brain has prompted compelling new questions in immuno-oncology such as the effects of tissue-specific differences in immune response, heterogeneity between primary tumors and distant metastases, and the role of spatiotemporal dynamics in shaping an effective anti-tumor immune response...
November 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29145950/a-combination-of-allogeneic-stem-cells-promotes-cardiac-regeneration
#7
Makoto Natsumeda, Victoria Florea, Angela C Rieger, Bryon A Tompkins, Monisha N Banerjee, Samuel Golpanian, Julia Fritsch, Ana Marie Landin, Nilesh D Kashikar, Vasileios Karantalis, Viky Y Loescher, Kostas E Hatzistergos, Luiza Bagno, Cristina Sanina, Muzammil Mushtaq, Jose Rodriguez, Marcos Rosado, Ariel Wolf, Kevin Collon, Louis Vincent, Anthony J Kanelidis, Ivonne H Schulman, Raul Mitrani, Alan W Heldman, Wayne Balkan, Joshua M Hare
BACKGROUND: The combination of autologous mesenchymal stem cells (MSCs) and cardiac stem cells (CSCs) synergistically reduces scar size and improves cardiac function in ischemic cardiomyopathy. Whereas allogeneic (allo-)MSCs are immunoevasive, the capacity of CSCs to similarly elude the immune system remains controversial, potentially limiting the success of allogeneic cell combination therapy (ACCT). OBJECTIVES: This study sought to test the hypothesis that ACCT synergistically promotes cardiac regeneration without provoking immunologic reactions...
November 14, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29145631/rifaximin-fails-to-prevent-campylobacteriosis-in-the-human-challenge-model-a-randomized-double-blind-placebo-controlled-trial
#8
Joanna E Rimmer, Clayton Harro, David A Sack, Kawsar R Talaat, Ramiro L Gutierrez, Barbara DeNearing, Jessica Brubaker, Renee M Laird, Frédéric Poly, Alexander C Maue, Kayla Jaep, Ashley Alcala, Yelizaveta Mochalova, Christina L Gariepy, Subhra Chakraborty, Patricia Guerry, David R Tribble, Chad K Porter, Mark S Riddle
Background: Campylobacter species are a leading cause of diarrheal disease globally with significant morbidity. Primary prevention efforts have yielded limited results. Rifaximin chemoprophylaxis decreases travelers' diarrhea rates and may be suitable for high risk persons. We assessed the efficacy of rifaximin in the controlled human infection model (CHIM) for Campylobacter jejuni. Methods: Twenty-eight subjects were admitted to an inpatient facility and randomized to a twice daily dose of 550 mg rifaximin or placebo...
November 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29145515/male-kidney-allograft-recipients-at-risk-for-urinary-tract-infection
#9
Gerold Thölking, Katharina Schuette-Nuetgen, Thomas Vogl, Ulrich Dobrindt, Barbara C Kahl, Marcus Brand, Hermann Pavenstädt, Barbara Suwelack, Raphael Koch, Stefan Reuter
BACKGROUND: Urinary tract infection (UTI) is the most common infection after renal transplantation (RTx). Although female sex is a well-known risk factor for the development of UTI after RTx, the role of the donor sex in this context remains unclear. METHODS: In this case control study 6,763 RTx cases were screened for UTI when presenting at our transplant outpatient clinics. 102 different RTx patients fulfilled the inclusion criteria and were compared to 102 controls...
2017: PloS One
https://www.readbyqxmd.com/read/29142122/adaptive-immune-responses-following-senecavirus-a-infection-in-pigs
#10
Mayara F Maggioli, Steve Lawson, Marcelo de Lima, Lok R Joshi, Tatiane C Faccin, Fernando V Bauermann, Diego G Diel
Senecavirus A (SVA), an emerging picornavirus of swine, causes vesicular disease (VD) that is clinically indistinguishable from foot-and-mouth disease (FMD) in pigs. Many aspects of SVA interactions with the host and the host immune responses to infection, however, remain unknown. In the present study, humoral and cellular immune responses to SVA were evaluated following infection in pigs. We show that SVA infection elicited an early and robust neutralizing antibody (NA) response, which coincided with and was strongly correlated with VP2- and VP3-specific IgM responses...
November 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29141886/pd-l1-genetic-overexpression-or-pharmacological-restoration-in-hematopoietic-stem-and-progenitor-cells-reverses-autoimmune-diabetes
#11
Moufida Ben Nasr, Sara Tezza, Francesca D'Addio, Chiara Mameli, Vera Usuelli, Anna Maestroni, Domenico Corradi, Silvana Belletti, Luca Albarello, Gabriella Becchi, Gian Paolo Fadini, Christian Schuetz, James Markmann, Clive Wasserfall, Leonard Zon, Gian Vincenzo Zuccotti, Paolo Fiorina
Immunologically based clinical trials performed thus far have failed to cure type 1 diabetes (T1D), in part because these approaches were nonspecific. Because the disease is driven by autoreactive CD4 T cells, which destroy β cells, transplantation of hematopoietic stem and progenitor cells (HSPCs) has been recently offered as a therapy for T1D. Our transcriptomic profiling of HSPCs revealed that these cells are deficient in programmed death ligand 1 (PD-L1), an important immune checkpoint, in the T1D nonobese diabetic (NOD) mouse model...
November 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29141491/association-of-psychosis-affective-disorders-and-diseases-affecting-the-immune-system
#12
Jeanette Brun Larsen, Valentina Cabral Iversen, Solveig Klæbo Reitan
Purpose of the article: There are indications of altered immune activity in depressed and psychotic patients compared to healthy controls in several studies. To explore the clinical importance of this phenomenon we examined the relation between different disorders affecting the immune system and psychoses and depression, respectively. MATERIALS AND METHODS: A total of 276 patients consecutively admitted to a psychiatric acute ward were included in the study. Of these 41 patients fulfilled the criteria for ICD-10 F20-29 (psychotic) diagnosis and 157 patients a F30-39 (affective) diagnosis...
November 16, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/29141313/-tocilizumab-for-refractory-systemic-juvenile-idiopathic-arthritis
#13
J M Lai, F Q Wu, Z X Zhou, M Kang, X L Huang, G X Su, S N Li, J Zhu, X N Wang
Objective: To evaluate the efficacy and side effects of tocilizumab for the treatment of systemic juvenile idiopathic arthritis. Method: In this prospective self case-control study, the children diagnosed with refractory systemic juvenile idiopathic arthritis admitted to Department of Rheumatism and Immunology of Children's Hospital Affiliated to Capital Institute of Pediatrics from December 2013 to June 2016 were enrolled and information before and after treatment of tocilizumab was analyzed. The tocilizumab was introvenously guttae in a dose of 8-12 mg/kg every 2 weeks...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29141310/-analysis-of-gene-mutation-of-early-onset-epileptic-spasm-with-unknown-reason
#14
X Yang, G Pan, W H Li, L M Zhang, B B Wu, H J Wang, P Zhang, S Z Zhou
Objective: To summarize the gene mutation of early onset epileptic spasm with unknown reason. Method: In this prospective study, data of patients with early onset epileptic spasm with unknown reason were collected from neurological department of Children's Hospital of Fudan University between March 2016 and December 2016. Patients with known disorders such as infection, metabolic, structural, immunological problems and known genetic mutations were excluded. Patients with genetic disease that can be diagnosed by clinical manifestations and phenotypic characteristics were also excluded...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29141027/the-efficacy-of-chimeric-antigen-receptor-car-immunotherapy-in-animal-models-for-solid-tumors-a-systematic-review-and-meta-analysis
#15
Yingcheng Wu, Ran Xu, Keren Jia, Hui Shi
BACKGROUND: Most recently, an emerging theme in the field of tumor immunology predominates: chimeric antigen receptor (CAR) therapy in treating solid tumors. The number of related preclinical trials was surging. However, an evaluation of the effects of preclinical studies remained absent. Hence, a meta-analysis was conducted on the efficacy of CAR in animal models for solid tumors. METHODS: The authors searched PubMed/Medline, Embase, and Google scholar up to April 2017...
2017: PloS One
https://www.readbyqxmd.com/read/29140932/characteristics-of-treatment-experienced-hiv-infected-african-children-and-adolescents-initiating-darunavir-and-or-etravirine-based-antiretroviral-treatment
#16
Bethany Corrigan, Irene Mukui, Lloyd Mulenga, Nobuhle Mthethwa, Mosilinyane Letsie, Stephanie Bruno, Natella Rakhmanina
BACKGROUND: Data are limited on the selection and sequencing of second and third-line pediatric antiretroviral treatment (ART) in resource-limited settings. This study aimed to evaluate characteristics of African pediatric patients initiated on darunavir (DRV) and/or etravirine (ETR) through a specific drug donation program. METHODS: This was a cross-sectional study of baseline immunologic, virologic and demographic characteristics of children and adolescents initiating DRV- and/or ETR-based ART...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29140828/biomimetic-nanoparticles-for-transplantation-tolerance
#17
Silvia Minardi, Sahil Shah, Xunrong Luo
PURPOSE OF REVIEW: The current review aims to provide a current landscape and future trends of biomimetic nanoparticles which have the potential to revolutionize the field of transplantation in the next decade. RECENT FINDINGS: Currently, the inability to safely induce robust donor-specific immunological tolerance makes it difficult to achieve immunosuppression-free graft survival. Despite progresses in the development of nanotherapeutics for antigen-specific immunomodulation in autoimmune diseases and in cancer treatments, few have been proposed and tested in transplantation with success...
November 14, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29140757/new-insights-into-lymphoma-pathogenesis
#18
Kojo S J Elenitoba-Johnson, Megan S Lim
Lymphomas represent clonal proliferations of lymphocytes that are broadly classified based upon their maturity (peripheral or mature versus precursor) and lineage (B cell, T cell, and natural killer cell). Insights into the pathogenetic mechanisms involved in lymphoma impact the classification of lymphoma and have significant implications for the diagnosis and clinical management of patients. Serial scientific and technologic advances over the last 30 years in immunology, cytogenetics, molecular biology, gene expression profiling, mass spectrometry-based proteomics, and, more recently, next-generation sequencing have contributed to greatly enhance our understanding of the pathogenetic mechanisms in lymphoma...
November 15, 2017: Annual Review of Pathology
https://www.readbyqxmd.com/read/29140108/cytomegalovirus-and-hiv-persistence-pouring-gas-on-the-fire
#19
Aaron Christensen-Quick, Christophe Vanpouille, Andrea Lisco, Sara Gianella
The inherent stability of a small population of T cells that are latently infected with HIV despite antiretroviral therapy (ART) remains a stubborn obstacle to an HIV cure. By exploiting the memory compartment of our immune system, HIV maintains persistence in a small subset of quiescent cells with varying phenotypes, thus evading immune surveillance and clinical detection. Understanding the molecular and immunological mechanisms that maintain the latent reservoir will be critical to the success of HIV eradication strategies...
November 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29139554/immune-checkpoint-inhibitors-new-strategies-to-checkmate-cancer
#20
REVIEW
Ruairi A M Wilson, T R Jeffry Evans, Alasdair R Fraser, Robert J B Nibbs
Immune checkpoint inhibitors (ICIs) targeting Cytotoxic T-Lymphocyte-Associated protein 4 (CTLA-4) or Programmed cell Death protein 1 (PD-1) receptors have demonstrated remarkable efficacy in subsets of patients with malignant disease. This emerging treatment modality holds great promise for future cancer treatment and has engaged pharmaceutical research interests in tumour immunology. While ICIs can induce rapid and durable responses in some patients, identifying predictive factors for effective clinical responses has proven challenging...
November 15, 2017: Clinical and Experimental Immunology
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