How does dihydroceramide accumulation specifically induce protein aggregation in HSCs?

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Description

The study shows dhCers accumulate in Emp1-deficient HSCs and cause protein aggregation, but the molecular mechanism linking sphingolipid metabolism to protein misfolding is not explained. Understanding this connection could reveal new therapeutic targets for protein aggregation diseases.

Gap type: unexplained_observation Source paper: EMP1 safeguards hematopoietic stem cells by suppressing sphingolipid metabolism and alleviating endoplasmic reticulum stress. (2025, Nat Commun, PMID:40624017)

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