ArticleLaboratory investigation; a journal of technical methods and pathology2011
Determining the contribution of NPM1 heterozygosity to NPM-ALK-induced lymphomagenesis.
Article in Laboratory investigation; a journal of technical methods and pathology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Review
- Human rpL3 induces G₁/S arrest or apoptosis by modulating p21 (waf1/cip1) levels in a p53-independent manner.Cell cycle (Georgetown, Tex.) · 2013Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
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Abstract
Heterozygous expression of Nucleophosmin (NPM1) predisposes to hematological malignancies in the mouse and cooperates with Myc in lymphomagenesis. NPM1 is therefore regarded as a haploinsufficient tumor suppressor. Heterozygous loss of NPM1 occurs as a result of the t(2;5), which generates the oncogenic fusion tyrosine kinase, NPM-anaplastic lymphoma kinase (ALK), a molecule underlying the pathogenesis of anaplastic large cell lymphoma (ALCL). Given the aforementioned role of NPM1 as a tumor suppressor, we hypothesized that NPM1 heterozygosity would cooperate with NPM-ALK in lymphomagenesis. In the event, we observed no difference in tumor latency, incidence or phenotype in NPM-ALK-transgenic mice heterozygous for NPM1 relative to transgenic mice expressing both NPM1 alleles. We propose that although the t(2;5) simultaneously reduces NPM1 allelic dosage and creates the NPM-ALK fusion protein, the two events do not cooperate in the pathogenesis of ALCL in our mouse model. These data indicate that a tumor-suppressive role for NPM1 may depend on cellular and/or genetic context.
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