Update on Adipose Tissue and Cancer

Area of Science:

• Endocrinology
• Oncology
• Metabolic Syndrome

Background:

• Adipose tissue, the largest endocrine organ, significantly impacts energy homeostasis.
• Increased adiposity is linked to 13 types of cancer, metabolic dysfunction, and insulin resistance.
• Adipose tissue crosstalks with organs, influencing development, growth, and progression of cancers like breast, colon, and endometrial cancers.

Purpose of the Study:

• To provide an updated review of the literature on the role of adipose tissue in cancer initiation and progression.
• To highlight the mechanisms by which obesity-associated adipose tissue dysfunction promotes cancer.
• To summarize the impact of metabolic changes and crosstalk between adipose and tumor cells on cancer development.

Main Methods:

• Literature review of studies investigating the link between adipose tissue, obesity, and cancer.
• Analysis of molecular and cellular mechanisms involved in adipose tissue remodeling and its impact on cancer.
• Synthesis of evidence on hormonal, metabolic, and inflammatory mediators in the obesity-cancer axis.

Main Results:

• Obesity-induced metabolic dysfunction, including insulin resistance, fuels cancer growth.
• Adipose tissue secretes factors (e.g., leptin, endotrophin) that promote cancer, while losing protective factors (e.g., adiponectin).
• Structural adipose tissue remodeling (fibrosis, disrupted angiogenesis) and nutrient provision (fatty acids, lactate) support tumor progression.

Conclusions:

• Adipose tissue plays a critical role in both the initiation and progression of various cancers.
• Obesity-driven alterations in adipose tissue create a pro-tumorigenic microenvironment.
• Understanding these complex interactions is crucial for developing targeted cancer therapies.