Molecular signatures differentiate immune states in type 1 diabetic families. Diabetes 2014 Nov;63(11):3960-73
Date
04/25/2014Pubmed ID
24760139Pubmed Central ID
PMC4207392DOI
10.2337/db14-0214Scopus ID
2-s2.0-84906086651 (requires institutional sign-in at Scopus site) 51 CitationsAbstract
Mechanisms associated with type 1 diabetes (T1D) development remain incompletely defined. Using a sensitive array-based bioassay where patient plasma is used to induce transcriptional responses in healthy leukocytes, we previously reported disease-specific, partially interleukin (IL)-1-dependent signatures associated with preonset and recent onset (RO) T1D relative to unrelated healthy control subjects (uHC). To better understand inherited susceptibility in T1D families, we conducted cross-sectional and longitudinal analyses of healthy autoantibody-negative (AA(-)) high HLA-risk siblings (HRS) (DR3 and/or DR4) and AA(-) low HLA-risk siblings (LRS) (non-DR3/non-DR4). Signatures, scored with a novel ontology-based algorithm, and confirmatory studies differentiated the RO T1D, uHC, HRS, and LRS plasma milieus. Relative to uHC, T1D family members exhibited an elevated inflammatory state, consistent with innate receptor ligation that was independent of HLA, AA, or disease status and included elevated plasma IL-1α, IL-12p40, CCL2, CCL3, and CCL4 levels. Longitudinally, signatures of T1D progressors exhibited increasing inflammatory bias. Conversely, HRS possessing decreasing AA titers revealed emergence of an IL-10/transforming growth factor-β-mediated regulatory state that paralleled temporal increases in peripheral activated CD4(+)/CD45RA(-)/FoxP3(high) regulatory T-cell frequencies. In AA(-) HRS, the familial innate inflammatory state also was temporally supplanted by immunoregulatory processes, suggesting a mechanism underlying the decline in T1D susceptibility with age.
Author List
Chen YG, Cabrera SM, Jia S, Kaldunski ML, Kramer J, Cheong S, Geoffrey R, Roethle MF, Woodliff JE, Greenbaum CJ, Wang X, Hessner MJAuthors
Susanne M. Cabrera MD Associate Professor in the Pediatrics department at Medical College of WisconsinYi-Guang Chen PhD Professor in the Pediatrics department at Medical College of Wisconsin
Martin J. Hessner PhD Professor in the Pediatrics department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
AdolescentAdult
Chemokine CCL2
Chemokine CCL3
Chemokine CCL4
Child
Cross-Sectional Studies
Diabetes Mellitus, Type 1
Female
Humans
Interleukin-1
Interleukin-10
Interleukin-12 Subunit p40
Longitudinal Studies
Male
T-Lymphocytes, Regulatory
Young Adult