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Home NEWS Science News Cancer

Oncotarget: Inhibitory effects of Tomivosertib in acute myeloid leukemia

Bioengineer by Bioengineer
July 12, 2021
in Cancer
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These Oncotarget findings demonstrate that Tomivosertib exhibits potent anti-leukemic properties on AML cells and support the development of clinical translational efforts involving the use of this drug

IMAGE

Credit: Correspondence to – Leonidas C. Platanias – [email protected]

Oncotarget published “Inhibitory effects of Tomivosertib in acute myeloid leukemia” which reported that the authors evaluated the therapeutic potential of the highly-selective MNK1/2 inhibitor Tomivosertib on AML cells.

Tomivosertib was highly effective at blocking eIF4E phosphorylation on serine 209 in AML cells.

Moreover, combination of Tomivosertib and Venetoclax resulted in synergistic anti-leukemic responses in AML cell lines.

Mass spectrometry studies identified novel putative MNK1/2 interactors, while in parallel studies we demonstrated that MNK2 – RAPTOR – mTOR complexes are not disrupted by Tomivosertib.

Overall, these Oncotarget findings demonstrate that Tomivosertib exhibits potent anti-leukemic properties on AML cells and support the development of clinical translational efforts involving the use of this drug, alone or in combination with other therapies for the treatment of AML.

These Oncotarget findings demonstrate that Tomivosertib exhibits potent anti-leukemic properties on AML cells and support the development of clinical translational efforts involving the use of this drug

Dr. Leonidas C. Platanias from The Northwestern University as well as The Jesse Brown Veterans Affairs Medical Center said, “Acute myeloid leukemia (AML) is the second most common form of leukemia in adults, and has a very poor overall survival rate.“

Therefore, there continues to be a need for new therapeutic modalities, including approaches targeting negative-feedback signaling pathways that may be activated in response to antileukemic treatments, leading to resistance.

The pro-neoplastic activity of eIF4E is associated with its phosphorylation/activation by MNK1/2 on serine 209 and correlates with enhanced mRNA translation, as well as nuclear export of mRNAs involved in tumorigenesis and cell cycle control.

Several studies have shown that pharmacological targeting of MNK1/2 results in inhibitory activity against AML cells in pre-clinical models.

As a result, the full therapeutic potential of MNK1/2 inhibition for the treatment of AML has not been fully assessed.

The authors demonstrate that Tomivosertib suppresses eIF4E phosphorylation in AML cells and decreases leukemic cell survival and proliferation.

The Platanias Research Team concluded in their Oncotarget Research Output, “Viewed altogether, these studies indicate that MNK1/2 inhibition would most likely be a successful strategy in only a subset of AML patients. In future studies it will be crucial to ascertain what pathways are responsible for sensitivity to MNK inhibitors. These studies will help to identify potential regulatory programs through which MNK1/2 modulates cell signaling pathways critical for leukemic cell survival and may lead to the development of novel therapeutic interventions for AML.“

###

DOI – https://doi.org/10.18632/oncotarget.27952

Full text – https://www.oncotarget.com/article/27952/text/

Correspondence to – Leonidas C. Platanias – [email protected]

Keywords –
MNK,
Tomivosertib,
acute myeloid leukemia,
eIF4E

About Oncotarget

Oncotarget is a bi-weekly, peer-reviewed, open access biomedical journal covering research on all aspects of oncology.

To learn more about Oncotarget, please visit https://www.oncotarget.com or connect with:

SoundCloud – https://soundcloud.com/oncotarget
Facebook – Oncotarget/”>https://www.facebook.com/Oncotarget/
Twitter – https://twitter.com/oncotarget
LinkedIn – https://www.linkedin.com/company/oncotarget
Pinterest – https://www.pinterest.com/oncotarget/
Reddit – Oncotarget/”>https://www.reddit.com/user/Oncotarget/

Oncotarget is published by Impact Journals, LLC please visit https://www.ImpactJournals.com or connect with @ImpactJrnls

Media Contact

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Impact Journals is a registered trademark of Impact Journals, LLC

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Original Source

https://www.oncotarget.com/news/pr/inhibitory-effects-of-tomivosertib-in-acute-myeloid-leukemia/

Related Journal Article

http://dx.doi.org/10.18632/oncotarget.27952

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