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Reducing FASN expression sensitizes acute myeloid leukemia cells to differentiation therapy
- Source :
- Cell Death and Differentiation, Humbert, Magali; Seiler, Kristina; Mosimann, Severin; Rentsch, Vreni; Sharma, Katyayani; Pandey, Amit Vikram; McKenna, Sharon L.; Tschan, Mario P. (2021). Reducing FASN expression sensitizes acute myeloid leukemia cells to differentiation therapy. Cell death and differentiation, 28(8), pp. 2465-2481. Springer Nature 10.1038/s41418-021-00768-1
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Fatty acid synthase (FASN) is the only human lipogenic enzyme available for de novo fatty acid synthesis and is often highly expressed in cancer cells. We found that FASN mRNA levels were significantly higher in acute myeloid leukemia (AML) patients than in healthy granulocytes or CD34+ hematopoietic progenitors. Accordingly, FASN levels decreased during all-trans retinoic acid (ATRA)-mediated granulocytic differentiation of acute promyelocytic leukemia (APL) cells, partially via autophagic degradation. Furthermore, our data suggest that inhibition of FASN expression levels using RNAi or (-)-epigallocatechin-3-gallate (EGCG) accelerated the differentiation of APL cell lines and significantly re-sensitized ATRA refractory non-APL AML cells. FASN reduction promoted translocation of transcription factor EB (TFEB) to the nucleus, paralleled by activation of CLEAR network genes and lysosomal biogenesis. Together, our data demonstrate that inhibition of FASN expression in combination with ATRA treatment facilitates granulocytic differentiation of APL cells and may extend differentiation therapy to non-APL AML cells.
- Subjects :
- Acute promyelocytic leukemia
CD34
610 Medicine & health
Article
Differentiation therapy
Macroautophagy
medicine
Humans
neoplasms
Molecular Biology
biology
Chemistry
Myeloid leukemia
Cell Differentiation
Oncogenes
Cell Biology
medicine.disease
Fatty Acid Synthase, Type I
Leukemia, Myeloid, Acute
Haematopoiesis
Fatty acid synthase
Cancer cell
biology.protein
Cancer research
570 Life sciences
TFEB
Subjects
Details
- ISSN :
- 14765403 and 13509047
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Cell Death & Differentiation
- Accession number :
- edsair.doi.dedup.....0ff3bac66d67eebf719cac72f98bb636
- Full Text :
- https://doi.org/10.1038/s41418-021-00768-1