Work

Targeting the tripartite axis of immune-metabolic-spatial crosstalk to overcome therapy resistance in breast cancer

Year: 2026

Type: article

Abstract: Therapeutic resistance remains the principal cause of mortality in breast cancer. While the tumor microenvironment (TME) is a key contributor, therapies targeting isolated TME components, whether immune, metabolic, or spatial, have largely failed due to compensatory adaptations and ecological resilience. This review synthesizes recent advances to propose a tripartite "Immune-Metabolic-Spatial" axis as the fundamental organizer of a robust resistance niche. We elucidate how immunosuppressive cells, such as TAMs and Tregs, are metabolically sustained by altered nutrient availability like lactate and hypoxia, while spatial constraints, including CAF-deposited ECM and DDR1-mediated collagen alignment, physically impede drug delivery and immune infiltration. Critically, we highlight reciprocal crosstalk where metabolic reprogramming dictates immune cell function, in turn influencing stromal remodeling to create a self-reinforcing resistance loop. Beyond mechanism, we evaluate emerging strategies that concurrently target multiple axes, such as combining immune checkpoint blockade with metabolic inhibitors or stromal disruptors. Finally, we discuss clinical translation through biomarker development and innovative trial designs, framing the tripartite axis as an actionable framework for overcoming therapeutic resistance.

Source: Frontiers in Immunology

DOI: 10.3389/fimmu.2026.1748257

Authors: Siyu He, Xuyan Liu, Qingjie Lv

Institutions: China Medical University, Sheng Jing Hospital, China Medical University

Language: English

Topic: Cancer Immunotherapy and Biomarkers

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,801