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Cancer, Lipids, and Metabolism / Peroxisome Proliferator-activated Receptors · Journal article
Bioorganic Chemistry · September 8, 2026
Raises a question worth testing. It does not answer one.
This is a narrative review synthesizing current knowledge of FABP-mediated lipid metabolism in tumor and immune cells, proposing bidirectional crosstalk mechanisms between tumor cells, adipocytes, macrophages, and immune checkpoints. The source identifies FABPs as potential therapeutic targets but presents no original experimental or clinical evidence to support efficacy or change practice.
Journal article.
FABPs act as cytoplasmic lipid chaperones regulating intracellular fatty acid trafficking and metabolic homeostasis. FABP isoforms coordinate lipid uptake, synthesis, oxidation, and storage to support tumor growth and metastatic progression. FABP-dependent lipid remodeling shapes immune cell function by modulating lipid availability and redox balance.
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
The source did not state who this applies to in practice.
This is a narrative review synthesizing mechanistic evidence about FABP-mediated lipid signaling in tumors and immunity, raising therapeutic hypotheses rather than testing them with clinical or experimental data.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.
Fatty acid-binding proteins (FABPs) are cytoplasmic lipid chaperones that regulate intracellular fatty acid trafficking and metabolic homeostasis. Increasing evidence identifies FABPs as key drivers of tumor metabolic reprogramming. Within the broader tumor microenvironment (TME), particularly its immune compartment, the tumor immune microenvironment (TIME), FABP isoforms coordinate lipid uptake, synthesis, oxidation, and storage, thereby supporting tumor growth and metastatic progression. Beyond tumor cells, FABP-dependent lipid remodeling shapes immune cell function and tumor–immune crosstalk by modulating lipid availability and redox balance. Conversely, tumor-microenvironmental cues, including adipocyte-derived lipids, obesity-associated fatty acids, macrophage polarization signals, and immune-checkpoint signaling, can regulate FABP expression and redistribute lipid metabolic programs among tumor and immune cells. Given their central function in lipid metabolic networks, FABPs represent promising therapeutic targets. Unlike previous FABP4-centered reviews, this review emphasizes multi-isoform FABP-mediated lipid metabolic crosstalk across tumor and immune-cell compartments, highlighting reciprocal TME regulation, immune-cell dysfunction, and therapeutic responsiveness.
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