Enantiomer-specific and paracrine leukemogenicity of mutant IDH metabolite 2-hydroxyglutarate.
Name:
Chaturvedi et al.pdf
Size:
1.635Mb
Format:
PDF
Description:
free PMC's author's manuscript
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Authors
Chaturvedi, AAraujo Cruz, M M
Jyotsana, N
Sharma, A
Goparaju, R
Schwarzer, A
Görlich, K
Schottmann, R
Struys, E A
Jansen, E E
Rohde, C
Müller-Tidow, C
Geffers, Robert

Göhring, G
Ganser, A
Thol, F
Heuser, M
Issue Date
2016-08
Metadata
Show full item recordAbstract
Canonical mutations in IDH1 and IDH2 produce high levels of the R-enantiomer of 2-hydroxyglutarate (R-2HG), which is a competitive inhibitor of α-ketoglutarate (αKG)-dependent enzymes and a putative oncometabolite. Mutant IDH1 collaborates with HoxA9 to induce monocytic leukemia in vivo. We used two mouse models and a patient-derived acute myeloid leukemia xenotransplantation (PDX) model to evaluate the in vivo transforming potential of R-2HG, S-2HG and αKG independent of the mutant IDH1 protein. We show that R-2HG, but not S-2HG or αKG, is an oncometabolite in vivo that does not require the mutant IDH1 protein to induce hyperleukocytosis and to accelerate the onset of murine and human leukemia. Thus, circulating R-2HG acts in a paracrine manner and can drive the expansion of many different leukemic and preleukemic clones that may express wild-type IDH1, and therefore can be a driver of clonal evolution and diversity. In addition, we show that the mutant IDH1 protein is a stronger oncogene than R-2HG alone when comparable intracellular R-2HG levels are achieved. We therefore propose R-2HG-independent oncogenic functions of mutant IDH1 that may need to be targeted in addition to R-2HG production to exploit the full therapeutic potential of IDH1 inhibition.Citation
Enantiomer-specific and paracrine leukemogenicity of mutant IDH metabolite 2-hydroxyglutarate. 2016, 30 (8):1708-15 LeukemiaAffiliation
Helmholtz Centre for infection research, Inhoffenstr. 7, 38124 Braunschweig, Germany.Journal
LeukemiaPubMed ID
27063596Type
ArticleLanguage
enISSN
1476-5551ae974a485f413a2113503eed53cd6c53
10.1038/leu.2016.71
Scopus Count
The following license files are associated with this item:
- Creative Commons
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-sa/4.0/