scholarly journals α-Galactosylceramide Can Act As a Nasal Vaccine Adjuvant Inducing Protective Immune Responses against Viral Infection and Tumor

2005 ◽  
Vol 175 (5) ◽  
pp. 3309-3317 ◽  
Author(s):  
Sung-Youl Ko ◽  
Hyun-Jeong Ko ◽  
Woo-Sung Chang ◽  
Se-Ho Park ◽  
Mi-Na Kweon ◽  
...  
Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1720
Author(s):  
Kuo-Chieh Liao ◽  
Mariano A. Garcia-Blanco

The importance of transcriptional regulation of host genes in innate immunity against viral infection has been widely recognized. More recently, post-transcriptional regulatory mechanisms have gained appreciation as an additional and important layer of regulation to fine-tune host immune responses. Here, we review the functional significance of alternative splicing in innate immune responses to viral infection. We describe how several central components of the Type I and III interferon pathways encode spliced isoforms to regulate IFN activation and function. Additionally, the functional roles of splicing factors and modulators in antiviral immunity are discussed. Lastly, we discuss how cell death pathways are regulated by alternative splicing as well as the potential role of this regulation on host immunity and viral infection. Altogether, these studies highlight the importance of RNA splicing in regulating host–virus interactions and suggest a role in downregulating antiviral innate immunity; this may be critical to prevent pathological inflammation.


2021 ◽  
Vol 42 (1) ◽  
pp. 77-85
Author(s):  
Meghana Muthuvattur Pallath ◽  
Ashok Kumar Ahirwar ◽  
Satyendra Chandra Tripathi ◽  
Priyanka Asia ◽  
Apurva Sakarde ◽  
...  

Abstract COVID-19 has resulted in an ongoing global pandemic, which spread largely among people who have had close contact with the infected person. The immunopathology of the SARS-CoV-2 virus includes the production of an excess amount of pro-inflammatory cytokines “a cytokine-storm”. The respiratory system (main), cardiovascular system and the gastrointestinal tract are the most affected body systems during viral infection. It has been found that most of the patients who require admission to hospital are elderly or have chronic underlying diseases. Higher cases of malnutrition and co-morbidities like diabetes mellitus and cardiovascular diseases are reported in elderly patients due to which, the immune system weakens and hence, the response to the virus is diminished in magnitude. A deficiency of micronutrients results in impaired immune responses leading to improper secretion of cytokines, alterations in secretory antibody response and antibody affinity which increases susceptibility to viral infection. The deficiency of various micronutrients in COVID-19 patient can be treated by appropriate nutritional supplements, prescribed after evaluating the patients’ nutritional status. Here we aim to highlight the role of a few particular nutrients namely Vitamin D, Vitamin C, Omega-3 fatty acids, Zinc and Magnesium along with the synergistic roles they play in enhancing immunity and thus, maintaining homeostasis.


2010 ◽  
Vol 226 (1) ◽  
pp. 242-253 ◽  
Author(s):  
Katherine S. Held ◽  
Oswald Steward ◽  
Caroline Blanc ◽  
Thomas E. Lane

Immunology ◽  
2016 ◽  
Vol 148 (4) ◽  
pp. 352-362 ◽  
Author(s):  
Sapna Patel ◽  
Archana Akalkotkar ◽  
Joseph J. Bivona ◽  
Ji-Young Lee ◽  
Young-Ki Park ◽  
...  

2004 ◽  
Vol 4 (2) ◽  
pp. 73 ◽  
Author(s):  
Eung-Soo Hwang ◽  
Chung-Gyu Park ◽  
Chang-Yong Cha

2019 ◽  
Vol 20 (17) ◽  
pp. 4241 ◽  
Author(s):  
Jean S. Marshall ◽  
Liliana Portales-Cervantes ◽  
Edwin Leong

Mast cells are well accepted as important sentinel cells for host defence against selected pathogens. Their location at mucosal surfaces and ability to mobilize multiple aspects of early immune responses makes them critical contributors to effective immunity in several experimental settings. However, the interactions of mast cells with viruses and pathogen products are complex and can have both detrimental and positive impacts. There is substantial evidence for mast cell mobilization and activation of effector cells and mobilization of dendritic cells following viral challenge. These cells are a major and under-appreciated local source of type I and III interferons following viral challenge. However, mast cells have also been implicated in inappropriate inflammatory responses, long term fibrosis, and vascular leakage associated with viral infections. Progress in combating infection and boosting effective immunity requires a better understanding of mast cell responses to viral infection and the pathogen products and receptors we can employ to modify such responses. In this review, we outline some of the key known responses of mast cells to viral infection and their major responses to pathogen products. We have placed an emphasis on data obtained from human mast cells and aim to provide a framework for considering the complex interactions between mast cells and pathogens with a view to exploiting this knowledge therapeutically. Long-lived resident mast cells and their responses to viruses and pathogen products provide excellent opportunities to modify local immune responses that remain to be fully exploited in cancer immunotherapy, vaccination, and treatment of infectious diseases.


2016 ◽  
pp. 321-350
Author(s):  
Hendrik Streeck ◽  
Todd J. Suscovich ◽  
Galit Alter

Cell Reports ◽  
2020 ◽  
Vol 31 (2) ◽  
pp. 107494 ◽  
Author(s):  
Lamin B. Cham ◽  
Laughing Bear Torrez Dulgeroff ◽  
Michal Caspi Tal ◽  
Tom Adomati ◽  
Fanghui Li ◽  
...  

2008 ◽  
Vol 13 (2) ◽  
pp. 153-162 ◽  
Author(s):  
Marlowe S Tessmer ◽  
Ayesha Fatima ◽  
Christophe Paget ◽  
Francois Trottein ◽  
Laurent Brossay

Blood ◽  
1999 ◽  
Vol 93 (8) ◽  
pp. 2653-2659
Author(s):  
Douglas G. McNeel ◽  
Kathy Schiffman ◽  
Mary L. Disis

Granulocyte-macrophage colony-stimulating factor (GM-CSF) is an important cytokine for the generation and propagation of antigen-presenting cells and for priming a cellular immune response. We report here that use of recombinant human GM-CSF (rhGM-CSF), administered as an adjuvant in a peptide-based vaccine trial given monthly by intradermal injection, led to the development of a T-cell and antibody response to rhGM-CSF. An antibody response occurred in the majority of patients (72%). This antibody response was not found to be neutralizing. In addition, by 48-hour delayed type hypersensitivity (DTH) skin testing, 17% of patients were shown to have a cellular immune response to the adjuvant rhGM-CSF alone. Thymidine incorporation assays also showed a peripheral blood T-cell response to rhGM-CSF in at least 17% of the patients. The generation of rhGM-CSF–specific T-cell immune responses, elicited in this fashion, is an important observation because rhGM-CSF is being used as a vaccine adjuvant in various vaccine strategies. rhGM-CSF–specific immune responses may be incorrectly interpreted as antigen-specific immunity, particularly when local DTH responses to vaccination are the primary means of immunologic evaluation. We found no evidence of hematologic or infectious complications as a result of the development of rhGM-CSF–specific immune responses.


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