Nature子刊：邹强/崔心刚/倪志宇/高强团队发现，饮食来源的半乳糖具有抗癌作用

Core Viewpoint - The research indicates that dietary galactose can reprogram hepatocytes to produce insulin-like growth factor binding protein-1 (IGFBP-1), which prevents T cell exhaustion and stimulates antitumor immune responses [2][3][5]. Group 1: Research Findings - High galactose diets promote hepatocytes to produce IGFBP-1, inhibiting T cell exhaustion dependent on insulin-like growth factor-1 (IGF-1) signaling [5]. - The absence of IGF-1 receptor (IGF-1R) in T cells enhances antitumor CD8+ T cell responses and prevents T cell exhaustion, demonstrating a phenotype associated with high galactose feeding [5]. - Galactose in the circulatory system reprograms hepatocyte metabolism, inhibiting mTORC1 activity and inducing IGFBP-1 production to enhance CD8+ T cell function [5]. Group 2: Clinical Observations - In cancer patients, those with higher plasma levels of IGFBP-1 exhibited reduced T cell exhaustion and enhanced T cell responses in tumor tissues [5]. - These findings suggest that dietary galactose can specifically stimulate robust antitumor CD8+ T cell responses, providing new insights for developing more effective cancer immunotherapies [5].