Multi-Omics Integration Uncovers That Tenofovir Disoproxil Fumarate Is Linked to Hepatic Metabolic Reprogramming Independent of Viral Infection.

BACKGROUND AND AIMS: TDF is a first-line antiviral for CHB with pleiotropic effects including immunomodulation and fibrosis regression, but its virus-independent mechanisms are unclear. This study delineates TDF's direct molecular and metabolic landscape in vivo using multi-omics.

METHODS

Wild-type mice received TDF or vehicle for 4 months. Liver tissues underwent RNA-seq and targeted metabolomics, followed by integrative systems biology.

RESULTS

TDF caused no hepatotoxicity but induced transcriptomic reprogramming: broad upregulation of immune/inflammatory pathways and suppression of metabolic pathways. Metabolomics confirmed perturbations in amino acid and fatty acid homeostasis. Multi-omics revealed coordinated downregulation of arginine/proline, alanine/aspartate/glutamate, and phenylalanine metabolism, restricting fibrogenic amino acids. TDF also suppressed the TCA cycle (downregulating Idh, Sdh, and Mdh), suggesting a metabolic bottleneck that was associated with paradoxically accumulated succinate and oxoglutarate-immunomodulatory danger signals.

CONCLUSIONS

This first integrated atlas shows TDF actively remodels the hepatic microenvironment independent of viral infection, bridging metabolic suppression with immune activation. These findings provide an immunometabolic framework that offers new perspectives for understanding the clinical application of TDF and identifies potential biomarkers for CHB therapy. explaining TDF's clinical superiority and identifying potential biomarkers for CHB therapy.