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Topic Review
HIV mRNA Vaccine Platforms
The SARS-CoV-2 pandemic introduced the world to a new type of vaccine based on mRNA encapsulated in lipid nanoparticles (LNPs). Instead of delivering antigenic proteins directly, an mRNA-based vaccine relies on the host’s cells to manufacture protein immunogens which, in turn, are targets for antibody and cytotoxic T cell responses. mRNA-based vaccines have been the subject of research for over three decades as a platform to protect against or treat a variety of cancers, amyloidosis and infectious diseases. In this review, we discuss mRNA-based approaches for the generation of prophylactic and therapeutic vaccines to HIV. We examine the special immunological hurdles for a vaccine to elicit broadly neutralizing antibodies and effective T cell responses to HIV. Lastly, we outline an mRNA-based HIV vaccination strategy based on the immunobiology of broadly neutralizing antibody development.
  • 721
  • 25 Jun 2021
Topic Review
Intestinal Homeostasis under Stress Siege
Intestinal homeostasis encompasses a complex and balanced interplay among a wide array of components that collaborate to maintain gut barrier integrity. The appropriate function of the gut barrier requires the mucus layer, a sticky cushion of mucopolysaccharides that overlays the epithelial cell surface. Mucus plays a critical anti-inflammatory role by preventing direct contact between luminal microbiota and the surface of the epithelial cell monolayer. Moreover, mucus is enriched with pivotal effectors of intestinal immunity, such as immunoglobulin A (IgA). A fragile and delicate equilibrium that supports proper barrier function can be disturbed by stress. The impact of stress upon intestinal homeostasis results from neuroendocrine mediators of the brain-gut axis (BGA), which comprises a nervous branch that includes the enteric nervous system (ENS) and the sympathetic and parasympathetic nervous systems, as well as an endocrine branch of the hypothalamic-pituitary-adrenal axis. 
  • 718
  • 02 Jun 2021
Topic Review
Paradoxical Duel Role of Collagen in Rheumatoid Arthritis
In biology, collagen-biomaterial regulates several signaling mechanisms of bone and immune cells involved in tissue repair and any imbalance in collagen turnover may affect the homeostasis of cells, becoming a major cause of several complications. The administration of oral collagen may play a potential role in returning cells to their normal function. For several decades, the beneficial effects of collagen have been explored widely, and thus many commercial products are available in cosmetics, food, and biomedical fields. For instance, collagen-based-products have been widely used to treat the complications of cartilage-related-disorders. Many researchers are reporting the anti-arthritogenic properties of collagen-based materials. In contrast, collagen, especially type-II collagen (CII), has been widely used to induce arthritis by immunization in an animal-model with or without adjuvants, and the potentially immunogenic-properties of collagen have been continuously reported for a long time. Additionally, the immune tolerance of collagen is mainly regulated by the T-lymphocytes and B-cells. This controversial hypothesis is getting more and more evidence nowadays from both sides to support its mechanism. 
  • 714
  • 22 Jul 2022
Topic Review
Molecular Mechanisms of Scombroid Food Poisoning
Scombroid food poisoning (SFP) is a foodborne disease that develops after consumption of fresh fish and, rarely, seafood that has fine organoleptic characteristics but contains a large amount of exogenous histamine. SFP, like other food pseudo-allergic reactions (FPA), is a disorder that is clinically identical to allergic reactions type I, but there are many differences in their pathogenesis. Since SFP is an FPA, exogenous histamine intoxication is strictly dose dependent. Increased intoxication with exogenous histamine leads to an increase in symptoms and a deterioration in the human condition.
  • 714
  • 12 Jan 2023
Biography
Riccardo Cortese
Riccardo Cortese (Siena, Italy, March 29, 1944 - Basel, Switzerland, April 27, 2017) was an Italian scientist, entrepreneur, and innovator in the field of gene expression, drug discovery and genetic vaccines. His work led to the development of novel therapeutic strategies for the prevention and cure of viral infections, including HIV, HCV, Ebola and RSV. He pioneered a novel platform technology
  • 713
  • 14 Dec 2022
Topic Review
Still’s Disease and Kawasaki Disease
Still’s disease and Kawasaki disease (KD) today belong to the group of cytokine storm syndromes, a pathophysiological set related to excessive activation of the innate immune response. 
  • 712
  • 30 Jul 2021
Topic Review
CAR T Cell Immune Therapy for Solid Tumors
Chimeric antigen receptor (CAR) T cells are genetically engineered T cells that recognize markers present on tumor cells and drive the degradation of the tumor itself. CAR T immunotherapy has obtained remarkable success in targeting a number of blood malignancies; however, its outcome is typically modest when applied to solid tumors, because of specific structural, biological, and metabolic aspects of the solid tumor environment. 
  • 712
  • 08 Dec 2022
Topic Review
Gene Circuits for Cancer Immunotherapy
Engineered mammalian cells for medical purposes are becoming a clinically relevant reality thanks to advances in synthetic biology that allow enhanced reliability and safety of cell-based therapies. However, their application is still hampered by challenges including time-consuming design-and-test cycle iterations and costs. For example, in the field of cancer immunotherapy, CAR-T cells targeting CD19 have already been clinically approved to treat several types of leukemia, but their use in the context of solid tumors is still quite inefficient, with additional issues related to the adequate quality control for clinical use.
  • 711
  • 17 Jan 2021
Topic Review
Types of Lipid-Based Nanocarriers for Vaccine Delivery
Lipid-based vaccine delivery systems such as the conventional liposomes, virosomes, bilosomes, vesosomes, pH-fusogenic liposomes, transferosomes, immuno-liposomes, ethosomes, and lipid nanoparticles have gained a remarkable interest in vaccine delivery due to their ability to render antigens in vesicular structures, that in turn prevents its enzymatic degradation in vivo. The particulate form of lipid-based nanocarriers confers immunostimulatory potential, making them ideal antigen carriers.
  • 711
  • 31 Mar 2023
Topic Review
Macrophages Proliferation in Health and Disease
Macrophages are the most abundant immune cells of the tumor microenvironment (TME) and have multiple important functions in cancer. Macrophages comprise a heterogeneous and functionally versatile population of innate immune cells. Compelling evidence indicate that the high degree of plasticity of macrophages and their ability to self-renew majorly impact tumor progression and resistance to therapy. In addition, the microenvironmental factors largely affect the metabolism of macrophages and may have a major influence on TAMs proliferation and subsets functions. Thus, understanding the signaling pathways regulating TAMs self-renewal capacity may help to identify promising targets for the development of novel anticancer agents.
  • 709
  • 02 Nov 2022
Topic Review
Linear IgA Disease
Linear IgA disease (LAD) is an autoimmune mucocutaneous disease characterized by linear deposits of IgA at the basement membrane zone on immunopathology. It is also known as linear IgA bullous dermatosis (LABD), but LAD is preferred because it is inclusive of patients without bullous lesions. In the pediatric population, it is known as chronic bullous disease of childhood (CBDC).
  • 708
  • 22 Sep 2021
Topic Review
The RadScopal Technique to Treat Cancer
The RadScopalTM technique is an innovative treatment approach that combines high-dose radiotherapy (H-XRT) directed to a primary tumor with low-dose radiotherapy (L-XRT) applied to secondary tumor(s) in patients currently undergoing or who have progressed on immunotherapy. The goal of this approach is to turn the primary tumor microenvironment (TME) into an in-situ vaccine that primes T-cells, while modulating the tumor stroma of secondary/metastatic lesions to enhance the infiltration and antitumor functions of effector immune cells. Furthermore, L-XRT is capable of reducing TGF-β levels and polarizing macrophages from M2 to M1 phenotype, thereby counteracting disadvantages that may be induced by H-XRT.
  • 708
  • 20 Apr 2023
Topic Review
Tumor Necrosis Factor-Alpha
Tumor necrosis factor-alpha (TNF-α) is a multifunctional Th1 cytokine and one of the most important inflammatory cytokines.
  • 705
  • 22 Jun 2021
Topic Review
Immunotherapy with Checkpoint-Inhibitors for HCC
Immune checkpoint inhibitors (ICIs) are beginning to show promise in the clinical management of hepatocellular carcinoma (HCC). Most recently, the anti-programmed death protein-1 (PD-1) agent atezolizumab combined with bevacizumab demonstrated superiority to sorafenib in a Phase 3 randomised clinical trial in the frontline setting. Other ongoing trials of immunotherapy for HCC are exploring different drug combinations, such as a double checkpoint blockade with PD-1 and anti-Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) agents or with tyrosine kinase inhibitors. Moreover, ICIs are being tested in the adjuvant and neoadjuvant settings trying to resolve long-time unmet needs in HCC. The results of the ongoing trials will be critical to understanding the extent of the therapeutic role of ICIs in the complex and multifaceted clinical scenario of HCC. Still, there are some critical points which need further attention to clarify the best use of ICIs in HCC patients. For instance, the actual eligibility rate of patients in the real-life scenario, the prompt identification and correct management of immune-mediated adverse events, the identification of biomarkers predicting response or resistance, and strategies to prevent the tumour escape from ICI effect.  Deatail review paper about the current therapeutic scenario of immune checkpoint inhibitors (in particular nivolumab, ipilimumab, atezolizumab, pembrolizumab, durvalumab) for the treatment of hepatocellular carcinoma. The first part of this review is dedicated to the concluded and ongoing clinical trials. The second part deals with the hot topics in the field of immunotherapy borrowing concepts from other cancers and adapting them to the specific scenario of hepatocellular carcinoma.
  • 704
  • 25 Oct 2020
Topic Review
Modeling Immune Checkpoint Inhibitors
Immune checkpoint inhibitors are revolutionizing the treatment of cancer, but models that accurately predict their efficacy before administering them to humans are badly needed.  This entry presents the application of a microfluidic tumor model that simulates the interactions between immune cells and tumors in a dynamic microenvironment, utilizing real-time imaging and image analytic algorithms to demonstrate excellent correlations between the laboratory model and animal studies.  Future applications of the system in precision medicine will explore the use of the device for selecting patient-specific therapies for cancer.
  • 703
  • 26 Oct 2020
Topic Review
The Next-Generation Immune Checkpoint LAG-3
The blockade of immune checkpoints (ICPs), such as cytotoxic T lymphocyte associated protein-4 (CTLA-4) and programmed death-1 (PD-1) and its ligand (PD-L1), has propelled the field of immuno-oncology into its current era.
  • 702
  • 13 Jan 2021
Topic Review
Psoriasis and Its Clinical Implications
Psoriasis is the result of uncontrolled keratinocyte proliferation, and its pathogenesis involves the dysregulation of the immune system. The interplay among cytokines released by dendritic, Th1, Th2, and Th17 cells leads to the phenotypical manifestations seen in psoriasis. Biological therapies target the cytokine-mediated pathogenesis of psoriasis and have improved patient quality of life.
  • 702
  • 05 May 2022
Topic Review
TLR4-Pathway-Associated Biomarkers in Subarachnoid Hemorrhage
Subarachnoid hemorrhage (SAH) is a complex condition with high morbidity and mortality. Numerous different factors contributing to brain injury after SAH have been identified. Despite treatment of complications of early brain injury, such as rise of intracranial pressure, disturbance of the blood–brain barrier, cerebral edema, and decrease in cerebral perfusion, the outcome of many patients remains devastating. Neuroinflammation within the brain parenchyma with associated neuronal cell death has been described as a leading mechanism for additional secondary brain injury. It involves complex signaling cascades in which the upregulation of inflammatory genes is induced. Consequently, the release of different inflammatory cytokines and chemokines leads to self-reinforcement of the immune system with concomitant neuronal cell death, destroying the brain. The immune system within the central nervous system (CNS) fulfills a special role. It is privileged and differs in its standards from the peripheral immune response. 
  • 702
  • 10 Nov 2022
Topic Review
Current Trends in Cancer Immunotherapy
The search for an effective drug to treat oncological diseases, which have become the main scourge of mankind, has generated a lot of methods for studying this affliction. It has also become a serious challenge for scientists and clinicians who have needed to invent new ways of overcoming the problems encountered during treatments, and have also made important discoveries pertaining to fundamental issues relating to the emergence and development of malignant neoplasms. Understanding the basics of the human immune system interactions with tumor cells has enabled new cancer immunotherapy strategies. Understanding the ways in which present therapies work, their advantages and disadvantages and how we can improve therapies is essential for developing next generation, or new treatments for cancer. 
  • 701
  • 30 Jan 2021
Topic Review
Inflammaging, an Imbalanced Immune Response
Nowadays, new advances in society and health have brought an increased life expectancy. However, at the same time, aging comes with complications that impact the development of autoimmunity, neurodegenerative diseases and cancer. These complications affect the quality of life and impact the public health system. Specifically, with aging, a low-grade chronic sterile systemic inflammation with self-reactivity in the absence of acute infection occurs termed inflammaging. Inflammaging is related to an imbalanced immune response that can be either naturally acquired with aging or accelerated due to external triggers. Different molecules, metabolites and inflammatory forms of cell death are highly involved in these processes. Importantly, adoptive cellular immunotherapy is a modality of treatment for cancer patients that administers ex vivo expanded immune cells in the patient. The manipulation of these cells confers them enhanced proinflammatory properties. A general consequence of proinflammatory events is the development of autoimmune diseases and cancer.
  • 700
  • 11 Oct 2021
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