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Giese, I.M.* ; Schilloks, M.C.* ; Degroote, R.L.* ; Weigand, M.* ; Renner, S.* ; Wolf, E.* ; Hauck, S.M. ; Deeg, C.A.*

Chronic hyperglycaemia drives functional impairment of lymphocytes in diabetic INSC94Y transgenic pigs.

Front. Immunol. 11:607473 (2020)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
People with diabetes mellitus have an increased risk for infections, however, there is still a critical gap in precise knowledge about altered immune mechanisms in this disease. Since diabetic INSC94Y transgenic pigs exhibit elevated blood glucose and a stable diabetic phenotype soon after birth, they provide a favorable model to explore functional alterations of immune cells in an early stage of diabetes mellitus in vivo. Hence, we investigated peripheral blood mononuclear cells (PBMC) of these diabetic pigs compared to non-diabetic wild-type littermates. We found a 5-fold decreased proliferative response of T cells in INSC94Y tg pigs to polyclonal T cell mitogen phytohemagglutinin (PHA). Using label-free LC-MS/MS, a total of 3,487 proteins were quantified, and distinct changes in protein abundances in CD4+ T cells of early-stage diabetic pigs were detectable. Additionally, we found significant increases in mitochondrial oxygen consumption rate (OCR) and higher basal glycolytic activity in PBMC of diabetic INSC94Y tg pigs, indicating an altered metabolic immune cell phenotype. Thus, our study provides new insights into molecular mechanisms of dysregulated immune cells triggered by permanent hyperglycemia.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Pha ; T Cells ; Animal Model(s) ; Annexin A1 ; Cell Metabolism ; Diabetes Mellitus ; Impaired Immune Cell Function ; Proliferation
ISSN (print) / ISBN 1664-3224
e-ISSN 1664-3224
Journal Frontiers in Immunology
Quellenangaben Volume: 11, Issue: , Pages: , Article Number: 607473 Supplement: ,
Publisher Frontiers
Publishing Place Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) CF Metabolomics & Proteomics (CF-MPC)
Grants German Center for Diabetes Research
Deutsche Forschungsgemeinschaft SPP project