Dietary Supplementation with Transgenic Camelina sativa Oil Containing 20:5n-3 and 22:6n-3 or Fish Oil Induces Differential Changes in the Transcriptome of CD3+ T Lymphocytes

A - Papers appearing in refereed journals

West, A. L., Miles, E. A., Han, L., Lillycrop, K. A., Napier, J. A., Calder, P. C. and Burdge, G. C. 2021. Dietary Supplementation with Transgenic Camelina sativa Oil Containing 20:5n-3 and 22:6n-3 or Fish Oil Induces Differential Changes in the Transcriptome of CD3+ T Lymphocytes. Nutrients. 13 (9), p. 3116. https://doi.org/10.3390/nu13093116

AuthorsWest, A. L., Miles, E. A., Han, L., Lillycrop, K. A., Napier, J. A., Calder, P. C. and Burdge, G. C.
Abstract

Eicosapentaenoic acid (20:5n-3) and docosahexaenoic acid (22:6n-3) are important for leukocyte function. This study investigated whether consuming transgenic Camelina sativa (tCSO) seed oil containing both 20:5n-3 and 22:6n-3 is as effective as fish oil (FO) for increasing the 20:5n-3 and 22:6n-3 content of leukocytes and altering mitogen-induced changes to the T cell transcriptome. Healthy adults (n = 31) consumed 450 mg/day of 20:5n-3 plus 22:6n-3 from either FO or tCSO for 8 weeks. Blood was collected before and after the intervention. 20:5n-3 and 22:6n-3 incorporation from tCSO
into immune cell total lipids was comparable to FO. The relative expression of the transcriptomes of mitogen-stimulated versus unstimulated T lymphocytes in a subgroup of 16 women/test oil showed 4390 transcripts were differentially expressed at Baseline (59% up-regulated), 4769 (57% up-regulated) after FO and 3443 (38% up-regulated) after tCSO supplementation. The 20 most altered transcripts after supplementation differed between test oils. The most altered pathways were associated with cell proliferation and immune function. In conclusion, 20:5n-3 and 22:6n-3 incorporation into immune cells from tCSO was comparable to FO and can modify mitogen-induced changes in the T cell transcriptome, contingent on the lipid matrix of the oil.

KeywordsOmega-3; RNAseq; T lymphocyte; Transgenic plant ; Fish oil ; Eicosapentaenoic acid ; Docosahexaenoic acid
Year of Publication2021
JournalNutrients
Journal citation13 (9), p. 3116
Digital Object Identifier (DOI)https://doi.org/10.3390/nu13093116
Web address (URL)https://www.mdpi.com/2072-6643/13/9/3116
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeTPM - Tailoring Plant Metabolism - Work package 1 (WP1) - High value lipids for health and industry
Publisher's version
Supplemental file
Output statusPublished
Publication dates
Online05 Sep 2021
Publication process dates
Accepted02 Sep 2021
PublisherMDPI
ISSN2072-6643

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