Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/26490
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Effects of fish oils on ex vivo B-cell responses of obese subjects upon BCR/TLR stimulation: a pilot study
Author(s): Guesdon, William
Kosaraju, Rasagna
Brophy, Patricia
Clark, Angela
Dillingham, Steve
Aziz, Shahnaz
Moyer, Fiona
Wilson, Kate
Dick, James R
Patil, Shivajirao Prakash
Balestrieri, Nicholas
Armstrong, Michael
Reisdroph, Nichole
Shaikh, Saame Raza
Contact Email: j.r.dick@stir.ac.uk
Keywords: Fish oil
B cells
Cytokines
Antibody levels
Lipidomics
Toll-like receptors
B-cell receptor
Issue Date: Mar-2018
Citation: Guesdon W, Kosaraju R, Brophy P, Clark A, Dillingham S, Aziz S, Moyer F, Wilson K, Dick JR, Patil SP, Balestrieri N, Armstrong M, Reisdroph N & Shaikh SR (2018) Effects of fish oils on ex vivo B-cell responses of obese subjects upon BCR/TLR stimulation: a pilot study, Journal of Nutritional Biochemistry, 53, pp. 72-80.
Abstract: The long-chain n-3 polyunsaturated fatty acids (LC-PUFAs) eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) in fish oil have immunomodulatory properties. B cells are a poorly studied target of EPA/DHA in humans. Therefore, in this pilot study, we tested how n-3 LC-PUFAs influence B-cell responses of obese humans. Obese men and women were assigned to consume four 1-g capsules per day of olive oil (OO, n=12), fish oil (FO, n=12) concentrate or high-DHA-FO concentrate (n=10) for 12 weeks in a parallel design. Relative to baseline, FO (n=9) lowered the percentage of circulating memory and plasma B cells, whereas the other supplements had no effect. There were no postintervention differences between the three supplements. Next, ex vivo B-cell cytokines were assayed after stimulation of Toll-like receptors (TLRs) and/or the B-cell receptor (BCR) to determine if the effects of n-3 LC-PUFAs were pathway-dependent. B-cell IL-10 and TNFα secretion was respectively increased with high DHA-FO (n=10), relative to baseline, with respective TLR9 and TLR9 + BCR stimulation. OO (n=12) and FO (n=12) had no influence on B-cell cytokines compared to baseline, and there were no differences in postintervention cytokine levels between treatment groups. Finally, ex vivo antibody levels were assayed with FO (n=7) after TLR9 + BCR stimulation. Compared to baseline, FO lowered IgM but not IgG levels accompanied by select modifications to the plasma lipidome. Altogether, the results suggest that n-3 LC-PUFAs could modulate B-cell activity in humans, which will require further testing in a larger cohort.
DOI Link: http://dx.doi.org/10.1016/j.jnutbio.2017.10.009
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: Guesdon W, Kosaraju R, Brophy P, Clark A, Dillingham S, Aziz S, Moyer F, Wilson K, Dick JR, Patil SP, Balestrieri N, Armstrong M, Reisdroph N & Shaikh SR (2018) Effects of fish oils on ex vivo B-cell responses of obese subjects upon BCR/TLR stimulation: a pilot study, Journal of Nutritional Biochemistry, 53, pp. 72-80. DOI: 10.1016/j.jnutbio.2017.10.009 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Files in This Item:
File Description SizeFormat 
guesdon V29.pdf284.17 kBAdobe PDFView/Open



This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.