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Nanoallergen platform for detection of platin drug allergies
Platinum-based antineoplastic agents (platins) are the most frequently used chemotherapeutics in patients with a variety of cancers, such as ovarian, colorectal, endometrial, and pancreatic cancer among others, and their use is associated with an increase in drug hypersensitivity reactions (DHRs).1 In particular, 2 commonly used platins, oxaliplatin and carboplatin, have high rates of DHR: carboplatin DHR rates range from 9% to 27%, whereas oxaliplatin DHR rates are as high as 25% and typically manifest between the fifth and seventh infusions.
Source: Journal of Allergy and Clinical Immunology - January 22, 2019 Category: Allergy & Immunology Authors: Peter E. Deak, Baksun Kim, Ather Adnan, Marina Labella, Leticia De las Vecillas, Mariana Castells, Basar Bilgicer Tags: Letter to the Editor Source Type: research
Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death.
The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties
Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research
Beyond CAR T Cells: Other Cell-Based Immunotherapeutic Strategies Against Cancer
Conclusions: CAR T cell therapies have demonstrated the clinical benefits of harnessing our body's own defenses to combat tumor cells. Similar research is being conducted on lesser known modifications and gene-modified immune cells, which we highlight in this review.
Introduction
Chimeric antigen receptors and engineered T cell receptors (based on previously identified high affinity T cell receptors) function by redirecting T cells to a predefined tumor-specific (or tumor-associated) target. Most of these modifications use retroviral or lentiviral vectors to integrate the construct, and most of the receptors ...
Source: Frontiers in Oncology - April 9, 2019 Category: Cancer & Oncology Source Type: research
Lactobacillus plantarum KLDS1.0318 Ameliorates Impaired Intestinal Immunity and Metabolic Disorders in Cyclophosphamide-Treated Mice
Conclusion
In conclusion, the present study showed that the oral administration of L. plantarum KLDS1.0318 normalized the parameters altered by CTX-induced toxicities, strengthening intestinal health by regulating the Th1/Th2 balance, ameliorating the intestinal morphology and improving profiles of intestinal microbiota and metabolism. Therefore, our findings suggested that the administration of L. plantarum KLDS1.0318 could be of significant advantage in reducing intestinal immunity impairment caused by cyclophosphamide.
Ethics Statement
This study was carried out according to the Animal Care Review Committee, Northeas...
Source: Frontiers in Microbiology - April 11, 2019 Category: Microbiology Source Type: research
Plant-Derived Alkaloids: The Promising Disease-Modifying Agents for Inflammatory Bowel Disease
Conclusion
This paper summarizes the current findings regarding the anti-colitis activity of plant-derived alkaloids and shows how these alkaloids exhibit significant and beneficial effects in alleviating colonic inflammation. These natural alkaloids are not only promising agents for IBD treatment but are also components for developing new wonder drugs. However, the underlying molecular mechanisms or toxicological evaluation of most plant-derived alkaloids still require much scientific research, and their actual efficacies for IBD patients have not been verified well in field research. Thus, further clinical trials to elu...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research
Sanguinarine Induces Apoptosis Pathway in Multiple Myeloma Cell Lines via Inhibition of the JaK2/STAT3 Signaling
In this study, we aimed to investigate the potential anti-proliferative and pro-apoptotic activities of SNG in a panel of MM cell lines (U266, IM9, MM1S, and RPMI-8226). SNG treatment of MM cells resulted in a dose-dependent decrease in cell viability through mitochondrial membrane potential loss and activation of caspase 3, 9, and cleavage of PARP. Pre-treatment of MM cells with a universal caspase inhibitor, Z-VAD-FMK, prevented SNG mediated loss of cell viability, apoptosis, and caspase activation, confirming that SNG-mediated apoptosis is caspase-dependent. The SNG-mediated apoptosis appears to be resulted from suppres...
Source: Frontiers in Oncology - April 16, 2019 Category: Cancer & Oncology Source Type: research
Dysbiosis of the Gut Microbiome in Lung Cancer
In conclusion, compared to previous analyses of the relationship between LC and the lung microbiome, this is the first study of LC in connection with the gut microbiome (Hosgood et al., 2014; Kosikowska et al., 2016). Our findings support the hypothesis of LC-specific microbiota. We suggest that the reduced levels of Actinobacteria sp. and Bifidobacterium sp. and elevated levels of Enterococcus sp. are associated with LC. At the same time, we have further revealed that the damage of the normal function of the gut microbiome is associated with the progression of LC. the progress of LC. We hope that the results herein can pr...
Source: Frontiers in cellular and infection microbiology - April 17, 2019 Category: Microbiology Source Type: research
Focused Ultrasound Improves NK-92MI Cells Infiltration Into Tumors
Conclusion
In conclusion, we demonstrated that the combination of FUS and microbubbles could increase the NK-92MI cells’ infiltration into tumors in this study. The combination of FUS and NK-92MI had a much better therapeutic effect when compared with the PBS group, but no superior therapeutic effect when compared with the NK-92MI group. In total, FUS and microbubbles can improve NK cells’ infiltration into tumors, but future work is still needed to improve NK-92MI cells’ delivery efficiency for solid tumor treatment.
Ethics Statement
This study was carried out in accordance with the recommendations...
Source: Frontiers in Pharmacology - April 17, 2019 Category: Drugs & Pharmacology Source Type: research
Osteoporosis and Sarcopenia Increase Frailty Syndrome in the Elderly
Conclusions
World population is aging and the increase in life expectancy is often unhealthy. In particular, musculoskeletal aging, which leads to sarcopenia and osteoporosis, has several causes such as changes in body composition, inflammation, and hormonal imbalance. Sarcopenia, osteoporosis, and more frequently, sarcopenic obesity are commonly associated with aging and frequently closely linked each other, often leading to the development of a frailty syndrome. Frailty syndrome favors an increased risk of loss function in daily activities, for cardiovascular diseases, cancers, falls, and mortality. As the number of eld...
Source: Frontiers in Endocrinology - April 23, 2019 Category: Endocrinology Source Type: research
Oligonucleotides —A Novel Promising Therapeutic Option for IBD
Conclusions
In this review, we focused on recent and past approaches to test the therapeutic efficacy of oligonucleotide based therapies in IBD.
The combining mechanistic mode of oligonucleotide based therapeutics is a targeted action on specific pro-inflammatory molecules, which are over activated in IBD patients and contribute significantly to disease pathogenesis. The proposed high selectivity of the agents is derived from its mode of action, that aims to specifically block certain inflammatory molecular patterns, without a general systemic effect on other molecular targets. It would be important for each oligonucleot...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research
Innate Lymphoid Cells: Expression of PD-1 and Other Checkpoints in Normal and Pathological Conditions
Conclusions and Future Perspectives
It is now evident that NK/ILC family plays a pivotal role in the immune defenses. Recent studies in murine and human settings demonstrated that the expression of several inhibitory checkpoints, that may be detrimental in the tumor context, is not restricted to T lymphocytes, revealing an important, yet poorly appreciated, contribution of their expression on innate immune cells. Thus, in the recent years different immunotherapy approaches, based on the blockade of inhibitory NK cell receptors, have been developed in order to unleash NK cell cytotoxicity. This is particularly important in...
Source: Frontiers in Immunology - April 25, 2019 Category: Allergy & Immunology Source Type: research
Leukocyte Heparanase: A Double-Edged Sword in Tumor Progression
Conclusions
This review describes how leukocyte-heparanase can be a double-edged sword in tumor progression; it can enhance tumor immune surveillance and tumor cell clearance, but also promote tumor survival and growth. We also discuss the potential of using heparanase in leukocyte therapies against tumors, and the effects of heparanase inhibitors on tumor progression and immunity.
We are just beginning to understand the influence of heparanase on a pro/anti-tumor immune response, and there are still many questions to answer. How do the pro/anti-tumorigenic effects of heparanase differ across different cancer types? Does...
Source: Frontiers in Oncology - April 29, 2019 Category: Cancer & Oncology Source Type: research
TRAIL-R1 and TRAIL-R2 Mediate TRAIL-Dependent Apoptosis in Activated Primary Human B Lymphocytes
In conclusion, this study provides a systematic analysis of the expression of TRAIL-Rs in human primary B cells and of their capacity to signal and induce apoptosis. This dataset forms a basis to further study and understand the dysregulation of TRAIL-Rs and TRAIL expression observed in autoimmune diseases. Additionally, it will be important to foresee potential bystander immunomodulation when TRAIL-R agonists are used in cancer treatment.
Introduction
The homeostasis of humoral immunity requires a tight control of generation, survival, activation and maturation of B lymphocytes. Therefore, pro-survival and pro-apo...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research
Hepatic Natural Killer Cells: Organ-Specific Sentinels of Liver Immune Homeostasis and Physiopathology
Joanna Mikulak1,2, Elena Bruni1,2, Ferdinando Oriolo1,2, Clara Di Vito1 and Domenico Mavilio1,2*
1Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy
2Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
The liver is considered a preferential tissue for NK cells residency. In humans, almost 50% of all intrahepatic lymphocytes are NK cells that are strongly imprinted in a liver-specific manner and show a broad spectrum of cellular heterogeneity. Hepatic NK (he-NK) cells play key roles in tuning liver immune response in b...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research
Neutrophil Cytosolic Factor 1 in Dendritic Cells Promotes Autoreactive CD8+ T Cell Activation via Cross-Presentation in Type 1 Diabetes
Conclusion: ROS promote CD8+ T cell activation by facilitating autoantigen cross-presentation by DCs. ROS scavengers could potentially represent an important component of therapies aiming to disrupt autoantigen presentation and activation of CD8+ T cells in individuals at-risk for developing T1D.
In Type 1 Diabetes (T1D), pancreatic β cells are attacked by a T cell mediated autoimmune response and lose their ability to produce insulin (1–3). While a number of immune cell subsets are involved throughout the development of T1D, cytotoxic CD8+ T cells (CTLs) function as primary effectors of ...
Source: Frontiers in Immunology - April 30, 2019 Category: Allergy & Immunology Source Type: research
