Randolph Noelle and colleagues from Dartmouth Medical School in Lebanon, USA show that certain adjuvants can induce antigen specific memory B cells, in the absence of induction of plasma cells. This is an important fundamental immunological observation as it suggests that memory B cells can arise independently of long-lived plasma cells, which is also interesting from a vaccination perspective.
The immune system recognizes vaccine agents as foreign, destroys them, and “remembers” them. When the virulent version of an agent comes along, the immune system is thus prepared to respond. This long term immunity relies heavily upon the generation of so called B cells, which will generate antibodies that will bind to pathogens and mark them for destruction. Specifically, almost all vaccine formulations induce two types of B-cells: memory B cells and antibody producing B-cells called plasma cells.
Adjuvants, agents which modify the effect of other agents while having few, if any direct effects when given by themselves, are many times used to modify (in this case augment) the effects that a vaccine has on disease resistance. However, the reasons why certain vaccine adjuvants are more or less effective at inducing immune responses often remains unclear.
“This article provides a very exciting new insight because it seems to change the traditional textbook paradigm on relationship between plasma cells and memory B cells", said Vaclav Horejsi”, the Editor-in-Chief of the EFIS journal.
In addition to being scientifically very interesting, the discovery may have important practical consequences in vaccinology as they suggest that memory B cell can be induced during vaccination without the recipient having to mount a strong primary antibody response during immunization. “While perhaps not immediately practicable, this study will have a contribution to the rational development of adjuvants for use in vaccination”, according to immunologist James Brewer from the University of Strathclyde in Glasgow, UK in his commentary published volume 109, issue 2 of Immunology Letters (http://www.sciencedirect.com/science/journal/01652478).
Floris de Hon | alfa
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
19.03.2018 | Physics and Astronomy
19.03.2018 | Materials Sciences
19.03.2018 | Event News