Loci for insulin processing and secretion provide insight into type 2 diabetes risk
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Loci for insulin processing and secretion provide insight into type 2 diabetes risk. / Broadaway, K. Alaine; Yin, Xianyong; Williamson, Alice; Parsons, Victoria A.; Wilson, Emma P.; Moxley, Anne H.; Vadlamudi, Swarooparani; Varshney, Arushi; Jackson, Anne U.; Ahuja, Vasudha; Bornstein, Stefan R.; Corbin, Laura J.; Delgado, Graciela E.; Dwivedi, Om P.; Silva, Lilian Fernandes; Frayling, Timothy M.; Grallert, Harald; Gustafsson, Stefan; Hakaste, Liisa; Hammar, Ulf; Herder, Christian; Herrmann, Sandra; Højlund, Kurt; Hughes, David A.; Kleber, Marcus E.; Lindgren, Cecilia M.; Liu, Ching Ti; Luan, Jian'an; Malmberg, Anni; Moissl, Angela P.; Morris, Andrew P.; Perakakis, Nikolaos; Peters, Annette; Petrie, John R.; Roden, Michael; Schwarz, Peter E.H.; Sharma, Sapna; Silveira, Angela; Strawbridge, Rona J.; Tuomi, Tiinamaija; Wood, Andrew R.; Wu, Peitao; Zethelius, Björn; Baldassarre, Damiano; Eriksson, Johan G.; Fall, Tove; Florez, Jose C.; Fritsche, Andreas; Gigante, Bruna; Hamsten, Anders; Kajantie, Eero; Laakso, Markku; Lahti, Jari; Lawlor, Deborah A.; Lind, Lars; März, Winfried; Meigs, James B.; Sundström, Johan; Timpson, Nicholas J.; Wagner, Robert; Walker, Mark; Wareham, Nicholas J.; Watkins, Hugh; Barroso, Inês; O'Rahilly, Stephen; Grarup, Niels; Parker, Stephen Cj; Boehnke, Michael; Langenberg, Claudia; Wheeler, Eleanor; Mohlke, Karen L.
In: American Journal of Human Genetics, Vol. 110, No. 2, 2023, p. 284-299.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Loci for insulin processing and secretion provide insight into type 2 diabetes risk
AU - Broadaway, K. Alaine
AU - Yin, Xianyong
AU - Williamson, Alice
AU - Parsons, Victoria A.
AU - Wilson, Emma P.
AU - Moxley, Anne H.
AU - Vadlamudi, Swarooparani
AU - Varshney, Arushi
AU - Jackson, Anne U.
AU - Ahuja, Vasudha
AU - Bornstein, Stefan R.
AU - Corbin, Laura J.
AU - Delgado, Graciela E.
AU - Dwivedi, Om P.
AU - Silva, Lilian Fernandes
AU - Frayling, Timothy M.
AU - Grallert, Harald
AU - Gustafsson, Stefan
AU - Hakaste, Liisa
AU - Hammar, Ulf
AU - Herder, Christian
AU - Herrmann, Sandra
AU - Højlund, Kurt
AU - Hughes, David A.
AU - Kleber, Marcus E.
AU - Lindgren, Cecilia M.
AU - Liu, Ching Ti
AU - Luan, Jian'an
AU - Malmberg, Anni
AU - Moissl, Angela P.
AU - Morris, Andrew P.
AU - Perakakis, Nikolaos
AU - Peters, Annette
AU - Petrie, John R.
AU - Roden, Michael
AU - Schwarz, Peter E.H.
AU - Sharma, Sapna
AU - Silveira, Angela
AU - Strawbridge, Rona J.
AU - Tuomi, Tiinamaija
AU - Wood, Andrew R.
AU - Wu, Peitao
AU - Zethelius, Björn
AU - Baldassarre, Damiano
AU - Eriksson, Johan G.
AU - Fall, Tove
AU - Florez, Jose C.
AU - Fritsche, Andreas
AU - Gigante, Bruna
AU - Hamsten, Anders
AU - Kajantie, Eero
AU - Laakso, Markku
AU - Lahti, Jari
AU - Lawlor, Deborah A.
AU - Lind, Lars
AU - März, Winfried
AU - Meigs, James B.
AU - Sundström, Johan
AU - Timpson, Nicholas J.
AU - Wagner, Robert
AU - Walker, Mark
AU - Wareham, Nicholas J.
AU - Watkins, Hugh
AU - Barroso, Inês
AU - O'Rahilly, Stephen
AU - Grarup, Niels
AU - Parker, Stephen Cj
AU - Boehnke, Michael
AU - Langenberg, Claudia
AU - Wheeler, Eleanor
AU - Mohlke, Karen L.
N1 - Publisher Copyright: Copyright © 2023 American Society of Human Genetics. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Insulin secretion is critical for glucose homeostasis, and increased levels of the precursor proinsulin relative to insulin indicate pancreatic islet beta-cell stress and insufficient insulin secretory capacity in the setting of insulin resistance. We conducted meta-analyses of genome-wide association results for fasting proinsulin from 16 European-ancestry studies in 45,861 individuals. We found 36 independent signals at 30 loci (p value < 5 × 10-8), which validated 12 previously reported loci for proinsulin and ten additional loci previously identified for another glycemic trait. Half of the alleles associated with higher proinsulin showed higher rather than lower effects on glucose levels, corresponding to different mechanisms. Proinsulin loci included genes that affect prohormone convertases, beta-cell dysfunction, vesicle trafficking, beta-cell transcriptional regulation, and lysosomes/autophagy processes. We colocalized 11 proinsulin signals with islet expression quantitative trait locus (eQTL) data, suggesting candidate genes, including ARSG, WIPI1, SLC7A14, and SIX3. The NKX6-3/ANK1 proinsulin signal colocalized with a T2D signal and an adipose ANK1 eQTL signal but not the islet NKX6-3 eQTL. Signals were enriched for islet enhancers, and we showed a plausible islet regulatory mechanism for the lead signal in the MADD locus. These results show how detailed genetic studies of an intermediate phenotype can elucidate mechanisms that may predispose one to disease.
AB - Insulin secretion is critical for glucose homeostasis, and increased levels of the precursor proinsulin relative to insulin indicate pancreatic islet beta-cell stress and insufficient insulin secretory capacity in the setting of insulin resistance. We conducted meta-analyses of genome-wide association results for fasting proinsulin from 16 European-ancestry studies in 45,861 individuals. We found 36 independent signals at 30 loci (p value < 5 × 10-8), which validated 12 previously reported loci for proinsulin and ten additional loci previously identified for another glycemic trait. Half of the alleles associated with higher proinsulin showed higher rather than lower effects on glucose levels, corresponding to different mechanisms. Proinsulin loci included genes that affect prohormone convertases, beta-cell dysfunction, vesicle trafficking, beta-cell transcriptional regulation, and lysosomes/autophagy processes. We colocalized 11 proinsulin signals with islet expression quantitative trait locus (eQTL) data, suggesting candidate genes, including ARSG, WIPI1, SLC7A14, and SIX3. The NKX6-3/ANK1 proinsulin signal colocalized with a T2D signal and an adipose ANK1 eQTL signal but not the islet NKX6-3 eQTL. Signals were enriched for islet enhancers, and we showed a plausible islet regulatory mechanism for the lead signal in the MADD locus. These results show how detailed genetic studies of an intermediate phenotype can elucidate mechanisms that may predispose one to disease.
KW - colocalization
KW - conditional
KW - enhancer
KW - eQTL
KW - fine-mapping
KW - GWAS
KW - meta-analysis
KW - proinsulin
KW - signal
KW - type 2 diabetes
U2 - 10.1016/j.ajhg.2023.01.002
DO - 10.1016/j.ajhg.2023.01.002
M3 - Journal article
C2 - 36693378
AN - SCOPUS:85147458360
VL - 110
SP - 284
EP - 299
JO - American Journal of Human Genetics
JF - American Journal of Human Genetics
SN - 0002-9297
IS - 2
ER -
ID: 336466655