# Emodin is a novel phosphatidylethanolamine anabolism inhibitor that reprograms lipid metabolism to overcome 5-fluorouracil resistance in colorectal cancer

**Authors:** Yanyan Chen, Yanchen Liu, Zhicheng Gong, Zhaohui Huang

PMC · DOI: 10.1016/j.jpha.2025.101343 · Journal of Pharmaceutical Analysis · 2025-05-12

## TL;DR

Emodin helps overcome resistance to 5-fluorouracil in colorectal cancer by inhibiting phosphatidylethanolamine anabolism and disrupting MAPK signaling.

## Contribution

Emodin is identified as a novel phosphatidylethanolamine anabolism inhibitor that targets PIM1 to reverse drug resistance.

## Key findings

- Emodin overcomes 5-fluorouracil resistance in colorectal cancer.
- Emodin inhibits phosphatidylethanolamine accumulation by targeting PIM1.
- Emodin restores PEBP1-RAF1 interaction to inactivate MAPK signaling.

## Abstract

Image 1

•Emodin overcomes 5-Fu resistance in colorectal cancer.•5-Fu drives PE accumulation to shift PEBP1 binding partners and activate MAPK signaling, which maintains drug resistance.•Emodin acts as a novel PE anabolism inhibitor by directly targeting PIM1.•Emodin reverses 5-Fu-induced PE accumulation to restore the PEBP1-RAF1 interaction to inactivate MAPK signaling.

Emodin overcomes 5-Fu resistance in colorectal cancer.

5-Fu drives PE accumulation to shift PEBP1 binding partners and activate MAPK signaling, which maintains drug resistance.

Emodin acts as a novel PE anabolism inhibitor by directly targeting PIM1.

Emodin reverses 5-Fu-induced PE accumulation to restore the PEBP1-RAF1 interaction to inactivate MAPK signaling.

## Linked entities

- **Genes:** PEBP1 (phosphatidylethanolamine binding protein 1) [NCBI Gene 5037], PIM1 (Pim-1 proto-oncogene, serine/threonine kinase) [NCBI Gene 5292], RAF1 (Raf-1 proto-oncogene, serine/threonine kinase) [NCBI Gene 5894], MAPK (mitogen activated kinase-like protein) [NCBI Gene 7446652]
- **Chemicals:** Emodin (PubChem CID 3220), 5-fluorouracil (PubChem CID 3385)
- **Diseases:** colorectal cancer (MONDO:0005575)

## Full-text entities

- **Diseases:** colorectal cancer (MESH:D015179)
- **Chemicals:** phosphatidylethanolamine (MESH:C483858), lipid (MESH:D008055), Emodin (MESH:D004642), 5-fluorouracil (MESH:D005472)

## Full text

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## Figures

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## References

4 references — full list in the complete paper: https://tomesphere.com/paper/PMC12593595/full.md

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Source: https://tomesphere.com/paper/PMC12593595