ArticleInternational journal of hematology2020
Functional analysis of a novel fusion protein PAX5-KIDINS220 identified in a pediatric Ph-like ALL patient.
Article in International journal of hematology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Identification of GSE1 as a PAX5 fusion partner and characterization of PAX5 fusion signature in B-cell acute lymphoblastic leukaemia.British journal of haematology · 2026Article
- Recurrent PAX5::ZCCHC7 rearrangement in B-cell acute lymphoblastic leukemia.Annals of hematology · 2024Article
- Fusion Oncoproteins in Childhood Cancers: Potential Role in Targeted Therapy.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2021Review
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Authors and funding
9 authors at 5 institutions in 1 country.
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Abstract
PAX5-KIDINS220 (PAX5-K220) is a novel chimeric fusion gene identified in a pediatric Philadelphia chromosome (Ph)-like acute lymphoblastic leukemia (ALL) patient, but the function of the encoded fusion protein has not yet been analyzed. Here, we report the functional analysis of PAX5-K220 in vitro. We successfully generated PAX5-K220 expressing cells and demonstrate that PAX5-K220 is a nuclear protein. Luciferase reporter assay reveals that PAX5-K220 inhibits wild-type PAX5 transcriptional activity in a dominant-negative fashion like other PAX5-related fusion proteins, and may contribute to lymphocyte differentiation block. However, although identified in Ph-like ALL, PAX5-K220 does not induce IL-3-independent proliferation when transduced in the IL-3-dependent Ba/F3 murine leukemia cells, but rather attenuates growth. These results reveal that PAX5-K220 certainly shares the character with other PAX5-related fusion proteins rather than other fusion proteins with tyrosine kinase activity identified in Ph-like ALL, and did not contribute to proliferation activity. Precise functional analysis of each differently partnered PAX5 fusion protein is warranted in the future for better understanding of PAX5-related translocations and their effects.
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Registered trials
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