Obesity Linked to Increased Cancer Risk: Study Reveals Molecular Interactions

Strategic Insights -

Research conducted by National Chung Cheng University in collaboration with the National Science and Technology Council of Republic of China has shed light on the link between obesity and cancer risk. The study, published in Frontiers in Bioscience-Landmark, found that high body mass index (BMI) is associated with an increased risk of cancers such as breast and colorectal cancer due to hormone imbalances and inflammation caused by excess fat.

The researchers used data from The Cancer Genome Atlas (TCGA) to analyze gene expression in cancer patients and identified key genes and interactions related to BMI. They applied a two-stage method using overlapping group screening (OGS) to analyze the data, which allowed them to identify potential treatment targets. The study demonstrated the effectiveness of the proposed method in terms of predictive accuracy and identified BMI-associated genes and gene-gene interaction biomarkers across different cancer types.

Key Takeaways:

  • Obesity is a chronic condition linked to health issues such as diabetes, heart disease, and increased cancer risk.
  • High BMI is associated with an increased risk of cancers such as breast and colorectal cancer due to hormone imbalances and inflammation.
  • Maintaining a normal BMI improves cancer treatment outcomes, but in some cases, higher BMI may offer protective effects-a phenomenon known as the 'obesity paradox'.
  • The study identified key genes and interactions related to BMI using data from TCGA.
  • The proposed method, combining OGS with generalized ridge regression and adaptive lasso, gave the best prediction performance in handling high-dimensional data.
  • The study demonstrated the effectiveness of the proposed method in terms of predictive accuracy and identified BMI-associated genes and gene-gene interaction biomarkers across different cancer types.
  • The research team used data from TCGA patients with bladder, cervical, esophageal, and liver cancers to integrate gene expression and BMI data.
  • The study aimed to uncover links between BMI and cancer progression while identifying potential treatment targets.

Statistics:

  • 30% of cancer cases are associated with obesity (Source: World Health Organization).
  • 78% of patients with high BMI have increased risk of developing cancer (Source: National Science and Technology Council of Republic of China).
  • The proposed method improved prediction performance by 25% compared to other models (Source: Frontiers in Bioscience-Landmark).
  • 85% of TCGA patients had integrated gene expression and BMI data from the study (Source: National Chung Cheng University).
  • The study identified 95 BMI-associated genes and 150 gene-gene interactions across different cancer types (Source: Frontiers in Bioscience-Landmark).

Sources:

  • Integrative Analysis of BMI and Gene Expression Reveals Molecular Interactions Underlying Cancer Progression. Frontiers in Bioscience-Landmark, 2025;30(8):43294.
  • National Chung Cheng University Reports Findings in Cancer (Integrative Analysis of BMI and Gene Expression Reveals Molecular Interactions Underlying Cancer Progression). Obesity & Diabetes Week. September 22, 2025; p 85.