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Updated: Jun 6, 2026

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
Sterol regulatory element‑binding proteins: Master regulators of lipid metabolic reprogramming in cancer and emerging
Qing Liu1, Rui Wang2, Zhenbo Li2
1College of Basic Medical Science, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China.
Abstract:
Sterol regulatory element‑binding proteins (SREBPs) are key regulatory factors of lipid synthesis. Tumor cells are highly dependent on SREBP‑driven lipid synthesis for the biogenesis of their cell membranes and signaling molecules. The aberrant activation of SREBPs is a critical event that drives tumorigenesis and progression. SREBPs are a subset of membrane‑bound proteins that function as basic helix‑loop‑helix leucine zipper (bHLH‑Zip) transcription factors. They mainly maintain the homeostasis of lipid metabolism in the body by activating the genes related to the synthesis and uptake of cholesterol, fatty acids and triglycerides. In addition to their involvement in tumor lipid metabolic reprogramming, SREBPs play critical roles in obesity, atherosclerosis, diabetes mellitus and neurodegenerative diseases. The present review summarizes the regulatory mechanisms of SREBPs, their aberrant activation in tumors, their role in promoting the malignant progression of tumors, as well as the relevant targeted therapeutic strategies from different aspects. In conclusion, targeting SREBPs is a promising anticancer strategy, and future studies are needed to further elucidate their intricate regulatory networks to advance precision medicine.
Insights
Sterol regulatory element-binding proteins (SREBPs) are crucial for lipid synthesis and tumor growth. Targeting SREBPs presents a promising strategy for developing new cancer therapies.
Area of Science:
- Molecular Biology
- Oncology
- Metabolic Diseases
Background:
- Sterol regulatory element-binding proteins (SREBPs) are key regulators of lipid synthesis.
- Tumor cells rely heavily on SREBP-driven lipid synthesis for membrane biogenesis and signaling.
- Aberrant SREBP activation is critical in tumorigenesis and progression.
Purpose of the Study:
- To review the regulatory mechanisms of SREBPs.
- To explore SREBP's aberrant activation in tumors.
- To summarize targeted therapeutic strategies against SREBPs in cancer.
Main Methods:
- Literature review of SREBP regulatory mechanisms.
- Analysis of SREBP's role in tumor lipid metabolism.
- Examination of targeted SREBP-based cancer therapies.
Main Results:
- SREBPs control cholesterol, fatty acid, and triglyceride synthesis and uptake.
- Dysregulated SREBPs contribute to obesity, diabetes, and neurodegenerative diseases.
- SREBP targeting demonstrates potential in preclinical cancer models.
Conclusions:
- Targeting SREBPs is a promising anticancer strategy.
- Further research into SREBP regulatory networks is needed for precision medicine.
- SREBP inhibition may offer novel therapeutic avenues for various cancers.
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