TY - JOUR
T1 - Novel loci and biomedical consequences of iron homoeostasis variation
AU - Allara, Elias
AU - Bell, Steven
AU - Smith, Rebecca
AU - Keene, Spencer J
AU - Gill, Dipender
AU - Gaziano, Liam
AU - Morselli Gysi, Deisy
AU - Wang, Feiyi
AU - Tragante, Vinicius
AU - Mason, Amy
AU - Karthikeyan, Savita
AU - Lumbers, R Thomas
AU - Bonglack, Emmanuela
AU - Ouwehand, Willem
AU - Roberts, David J
AU - Dowsett, Joseph
AU - Ostrowski, Sisse Rye
AU - Larsen, Margit Hørup
AU - Ullum, Henrik
AU - Pedersen, Ole Birger
AU - Brunak, Søren
AU - Banasik, Karina
AU - Erikstrup, Christian
AU - Mitchell, Jonathan
AU - Fuchsberger, Christian
AU - Pattaro, Cristian
AU - Pramstaller, Peter P
AU - Girelli, Domenico
AU - Arvas, Mikko
AU - Toivonen, Jarkko
AU - Molnos, Sophie
AU - Peters, Annette
AU - Polasek, Ozren
AU - Rudan, Igor
AU - Hayward, Caroline
AU - McDonnell, Ciara
AU - Pirastu, Nicola
AU - Wilson, James F
AU - van den Hurk, Katja
AU - Quee, Franke
AU - Ferrucci, Luigi
AU - Bandinelli, Stefania
AU - Tanaka, Toshiko
AU - Girotto, Giorgia
AU - Concas, Maria Pina
AU - Pecori, Alessandro
AU - Verweij, Niek
AU - van der Harst, Pim
AU - van de Vegte, Yordi J
AU - Di Angelantonio, Emanuele
AU - DBDS Genomic Consortium
N1 - © 2024. The Author(s).
PY - 2024/12/6
Y1 - 2024/12/6
N2 - Iron homoeostasis is tightly regulated, with hepcidin and soluble transferrin receptor (sTfR) playing significant roles. However, the genetic determinants of these traits and the biomedical consequences of iron homoeostasis variation are unclear. In a meta-analysis of 12 cohorts involving 91,675 participants, we found 43 genomic loci associated with either hepcidin or sTfR concentration, of which 15 previously unreported. Mapping to putative genes indicated involvement in iron-trait expression, erythropoiesis, immune response and cellular trafficking. Mendelian randomisation of 292 disease outcomes in 1,492,717 participants revealed associations of iron-related loci and iron status with selected health outcomes across multiple domains. These associations were largely driven by HFE, which was associated with the largest iron variation. Our findings enhance understanding of iron homoeostasis and its biomedical consequences, suggesting that lifelong exposure to higher iron levels is likely associated with lower risk of anaemia-related disorders and higher risk of genitourinary, musculoskeletal, infectious and neoplastic diseases.
AB - Iron homoeostasis is tightly regulated, with hepcidin and soluble transferrin receptor (sTfR) playing significant roles. However, the genetic determinants of these traits and the biomedical consequences of iron homoeostasis variation are unclear. In a meta-analysis of 12 cohorts involving 91,675 participants, we found 43 genomic loci associated with either hepcidin or sTfR concentration, of which 15 previously unreported. Mapping to putative genes indicated involvement in iron-trait expression, erythropoiesis, immune response and cellular trafficking. Mendelian randomisation of 292 disease outcomes in 1,492,717 participants revealed associations of iron-related loci and iron status with selected health outcomes across multiple domains. These associations were largely driven by HFE, which was associated with the largest iron variation. Our findings enhance understanding of iron homoeostasis and its biomedical consequences, suggesting that lifelong exposure to higher iron levels is likely associated with lower risk of anaemia-related disorders and higher risk of genitourinary, musculoskeletal, infectious and neoplastic diseases.
KW - Humans
KW - Iron/metabolism
KW - Homeostasis
KW - Hepcidins/genetics
KW - Receptors, Transferrin/genetics
KW - Hemochromatosis Protein/genetics
KW - Female
KW - Mendelian Randomization Analysis
KW - Male
KW - Genome-Wide Association Study
KW - Polymorphism, Single Nucleotide
KW - Deficiency
KW - Risk
KW - Stores
KW - Ferric carboxymaltose
KW - Metaanalysis
KW - Coronary-heart-disease
KW - Association
KW - Biobank
KW - Mice
KW - Failure
U2 - 10.1038/s42003-024-07115-3
DO - 10.1038/s42003-024-07115-3
M3 - Article
C2 - 39643614
SN - 2399-3642
VL - 7
JO - Communications Biology
JF - Communications Biology
IS - 1
M1 - 1631
ER -