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Cited by 268

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Autophagy contributes to therapy-induced degradation of the PML/RARA oncoprotein

Isakson, Pauline, Bjørås, Magnar, Bøe, Stig Ove, Simonsen, Anne·2010·Blood

Abstract

Treatment of acute promyelocytic leukemia (APL) with all-trans retinoic acid and/or arsenic trioxide represents a paradigm in targeted cancer therapy because these drugs cause clinical remission by affecting the stability of the fusion oncoprotein promyelocytic leukemia (PML)/retinoic acid receptor alpha (RARA). The authors of previous studies have implicated the ubiquitin-proteasome pathway as the main mechanism involved in therapy-induced PML/RARA degradation. Here we have investigated a role of autophagy, a protein degradation pathway that involves proteolysis of intracellular material within lysosomes. We found that both all-trans retinoic acid and arsenic trioxide induce autophagy via the mammalian target of rapamycin pathway in APL cells and that autophagic degradation contributes significantly both to the basal turnover as well as the therapy-induced proteolysis of PML/RARA. In addition, we observed a correlation between autophagy and therapy-induced differentiation of APL cells. Given the central role of the PML/RARA oncoprotein in APL pathogenesis, this study highlights an important role of autophagy in the development and treatment of this disease.

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Crossref · 10.1182/blood-2010-01-261040

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Metadata

Authors
Isakson, P., Bjørås, M., Bøe, S. O., & Simonsen, A.
Venue
Blood
Published
2010-09-30
Volume
116
Issue
13
Pages
2324-2331
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2049362524
Cited by
268
References
9
FWCI
6.26
Type
journal article
Language
en
Open access
closed

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