The lipid-metabolism enzyme ECI2 reduces neutrophil extracellular traps formation for colorectal cancer suppression.

Nat Commun. 2024 Aug 21;15(1):7184.

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Significance :

This study reveals a critical link between lipid metabolism and colorectal cancer (CRC).

In particular, the lipid metabolizing enzyme ECI2 was found to inhibit tumor formation.

It was found that ECI2 could reduce interleukin-8 (IL-8) expression by modulating ether

lipid metabolism, thereby reducing neutrophil recruitment and the formation of neutrophil

extracellular traps (NETs), which is important for inhibiting the progression of CRC.

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Importance of lipidology :

This study provides insight into the relationship between ether lipid metabolism and

tumor progression. Ether lipids have been found to be associated with increased tumor

aggressiveness in the past, and this study further confirms their role in CRC. The role

of ECI2 in the inhibition of ether lipid production may provide a new direction for targeting

lipid metabolic pathways in cancer therapy in the future.

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Connectivity to other field :

Abnormal lipid metabolism is not only an intracellular change, but also affects the immune

response in the tumor microenvironment. Neutrophils, as part of the immune system,

undergo functional changes when regulated by ether lipids, especially in the formation of

NETs, which are DNA and protein meshwork excreted by neutrophil, and have been shown

to be associated with the progression of various cancers. This study reveals how lipid

metabolism regulates immune responses in the tumor microenvironment, particularly affecting

the function of immune cells, providing new directions for cancer immunotherapy research.

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https://pubmed.ncbi.nlm.nih.gov/39169021/