American Association for Cancer Research
00085472can171860-sup-185193_2_supp_4525759_p327y8.pdf (1.57 MB)

Supplemental figures from Tumorigenic and Antiproliferative Properties of the TALE-Transcription Factors MEIS2D and MEIS2A in Neuroblastoma

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journal contribution
posted on 2023-03-31, 01:20 authored by Anja Groß, Catrine Schulz, Jasmine Kolb, Jan Koster, Sibylle Wehner, Sebastian Czaplinski, Abdulghani Khilan, Hermann Rohrer, Patrick N. Harter, Thomas Klingebiel, Julian D. Langer, Dirk Geerts, Dorothea Schulte

This file contains additional data related to the results shown in figures 1-5 of the main manuscript.


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Childhood Solid Tumor Network

Ludwig Edinger Fellowship



Neuroblastoma is one of only a few human cancers that can spontaneously regress even after extensive dissemination, a poorly understood phenomenon that occurs in as many as 10% of patients. In this study, we identify the TALE-homeodomain transcription factor MEIS2 as a key contributor to this phenomenon. We identified MEIS2 as a MYCN-independent factor in neuroblastoma and showed that in this setting the alternatively spliced isoforms MEIS2A and MEIS2D exert antagonistic functions. Specifically, expression of MEIS2A was low in aggressive stage 4 neuroblastoma but high in spontaneously regressing stage 4S neuroblastoma. Moderate elevation of MEIS2A expression reduced proliferation of MYCN-amplified human neuroblastoma cells, induced neuronal differentiation and impaired the ability of these cells to form tumors in mice. In contrast, MEIS2A silencing or MEIS2D upregulation enhanced the aggressiveness of the tumor phenotype. Mechanistically, MEIS2A uncoupled a negative feedback loop that restricts accumulation of cellular retinoic acid, an effective agent in neuroblastoma treatment. Overall, our results illuminate the basis for spontaneous regression in neuroblastoma and identify an MEIS2A-specific signaling network as a potential therapeutic target in this common pediatric malignancy.Significance: This study illuminates the basis for spontaneous regressions that can occur in a common pediatric tumor, with implications for the development of new treatment strategies. Cancer Res; 78(8); 1935–47. ©2018 AACR.