Expressive

rs1169296 (HNF1A): MODY Pathway and Pancreatic Cancer

Key takeaways

  • The MODY gene pathway, which includes HNF1A, was linked to pancreatic ductal adenocarcinoma risk in 9,040 cases and 12,496 controls.
  • This pathway-level connection survived the strictest statistical correction (Bonferroni, P <= 1.3 x 10^-5).
  • Large metabolic GWAS studies with over 136,000 participants are mapping how genes like HNF1A shape circulating metabolites.
  • Available evidence for rs1169296 specifically is at the pathway level, not the individual variant level.

Key takeaways

  • The MODY (maturity-onset diabetes of the young) gene pathway, which includes HNF1A, was linked to pancreatic ductal adenocarcinoma risk in a pathway-level study of 9,040 cancer cases and 12,496 controls.
  • This connection survived the strictest statistical threshold (Bonferroni correction, P <= 1.3 x 10^-5) and a false discovery rate below 5%.
  • Large population-scale metabolic GWAS studies involving up to 136,016 participants have mapped more than 400 genomic loci influencing circulating metabolic traits, providing context for HNF1A-related metabolic biology.
  • Evidence in the available studies is at the gene-pathway level; direct variant-level data for rs1169296 specifically were not reported in the provided study texts.

What the research says A large agnostic pathway-based meta-analysis of genome-wide association data in 9,040 pancreatic ductal adenocarcinoma (PDAC) cases and 12,496 controls identified the MODY pathway - a gene set that includes HNF1A among several MODY-related genes - as one of five pathways surviving Bonferroni correction (P <= 1.3 x 10^-5), with all 14 pathways identified also meeting an FDR threshold below 5%. A separate genome-wide study of 233 circulating metabolic traits in up to 136,016 participants from 33 cohorts identified more than 400 independent genomic loci associated with lipid, lipoprotein, amino acid, and small-molecule metabolites, providing a broad population-level reference for how genetic variants shape metabolic biomarkers.

Reported associations

  • Pancreatic ductal adenocarcinoma (PDAC) risk: The MODY pathway, which includes HNF1A among multiple MODY-related genes, was among five gene sets surviving Bonferroni correction (P <= 1.3 x 10^-5) in a pathway meta-analysis of 9,040 PDAC cases and 12,496 controls; this is a pathway-level association, not a direct single-variant finding for rs1169296.
  • Circulating metabolic traits: A GWAS of 233 metabolic traits in up to 136,016 participants identified more than 400 independent loci; the provided study text does not name rs1169296 or the HNF1A locus explicitly among reported associations, so this study provides general methodological and population-scale context rather than variant-specific evidence.

Evidence quality The primary evidence linking the HNF1A gene region to disease in these studies comes from a pathway-level meta-analysis using the summary-based adaptive rank truncated product (ARTP) method applied to GWAS summary statistics from 9,040 PDAC cases and 12,496 controls. Pathway analyses aggregate statistical signals across many variants and multiple genes simultaneously, meaning the reported association reflects the collective contribution of the MODY gene set rather than the effect of rs1169296 in isolation. The association was statistically robust, meeting both an FDR threshold below 5% and the stricter Bonferroni correction at P <= 1.3 x 10^-5. The metabolic biomarker GWAS (up to 136,016 participants across 33 cohorts) is large and well-powered but does not report rs1169296-specific effect sizes or associations in the text provided. No direct, variant-level replication data for rs1169296 are present in the available studies; the evidence should be considered preliminary and indirect with respect to this specific SNP.

Lifestyle considerations No lifestyle considerations on file for this variant.

Frequently asked questions

What does HNF1A do in the body?

HNF1A (Hepatocyte Nuclear Factor 1 Alpha) is a transcription factor - a protein that switches other genes on or off. It belongs to the MODY (maturity-onset diabetes of the young) gene pathway, which plays a role in pancreatic and metabolic function.

Is rs1169296 linked to pancreatic cancer?

Not directly at the single-variant level based on the available studies. The MODY gene pathway - which includes HNF1A along with other MODY genes - was linked to pancreatic ductal adenocarcinoma risk in a large pathway analysis. This pathway-level finding cannot isolate the contribution of rs1169296 alone.

What metabolic traits are associated with HNF1A variants?

Large-scale GWAS research has identified more than 400 genomic loci influencing circulating lipids, lipoproteins, amino acids, and other metabolites across 136,000 participants, but the available study texts do not explicitly report metabolic associations specific to rs1169296.

How reliable is the MODY pathway association with pancreatic cancer?

The association was statistically robust, surviving both a false discovery rate threshold below 5% and the stricter Bonferroni correction (P <= 1.3 x 10^-5) across 9,040 cancer cases and 12,496 controls. However, pathway analyses reflect the collective signal of a gene group, not a single variant.