PMID- 31804607 OWN - NLM STAT- MEDLINE DCOM- 20210908 LR - 20230918 IS - 1476-5403 (Electronic) IS - 1350-9047 (Print) IS - 1350-9047 (Linking) VI - 27 IP - 6 DP - 2020 Jun TI - IGF2BP2 regulates DANCR by serving as an N6-methyladenosine reader. PG - 1782-1794 LID - 10.1038/s41418-019-0461-z [doi] AB - The major function of Insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) is to regulate cell metabolism. However, emerging evidence indicates that IGF2BP2 plays a role in cancer, but the underlying mechanism is largely unknown. Here we showed that upregulation of IGF2BP2 is associated with poor outcomes of pancreatic cancer patients and suppression of IGF2BP2 inhibits cell proliferation. We further showed that IGF2BP2 regulates lncRNA DANCR. Ectopic expression IGF2BP2 enhances, whereas knockdown (KD) or knockout (KO) of IGF2BP2 suppresses DANCR expression. Moreover, in vivo RNA precipitation and reciprocal RNA immunoprecipitation revealed that IGF2BP2 interacts with DANCR. DANCR promotes cell proliferation and stemness-like properties. Experiments with xenograft models revealed that while ectopic expression of DANCR promotes, DANCR KO suppresses tumor growth. Mechanistically, DANCR is modified at N6-methyladenosine (m6A) and mutagenesis assay identified that adenosine at 664 of DANCR is critical to the interaction between IGF2BP2 and DANCR where IGF2BP2 serves a reader for m6A modified DANCR and stabilizes DANCR RNA. Together, these results suggest that DANCR is a novel target for IGF2BP2 through m6A modification, and IGF2BP2 and DANCR work together to promote cancer stemness-like properties and pancreatic cancer pathogenesis. FAU - Hu, Xiaoge AU - Hu X AD - Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China. AD - Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA. FAU - Peng, Wan-Xin AU - Peng WX AD - Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA. AD - Department of Cell biology, School of Medicine, Jiangsu University, Zhenjiang, China. FAU - Zhou, Huaixiang AU - Zhou H AD - Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China. FAU - Jiang, Jiahong AU - Jiang J AD - Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China. FAU - Zhou, Xinchun AU - Zhou X AD - Department of Pathology, University of Mississippi Medical Center, Jackson, MS, USA. FAU - Huang, Dongsheng AU - Huang D AD - Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China. FAU - Mo, Yin-Yuan AU - Mo YY AD - Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA. ymo@umc.edu. AD - Department of Pharmacology/Toxicology, University of Mississippi Medical Center, Jackson, MS, USA. ymo@umc.edu. FAU - Yang, Liu AU - Yang L AD - Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China. yangliuqq2003@163.com. LA - eng GR - P20 GM121334/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20191205 PL - England TA - Cell Death Differ JT - Cell death and differentiation JID - 9437445 RN - 0 (DANCR long noncoding RNA, human) RN - 0 (IGF2BP2 protein, human) RN - 0 (RNA, Long Noncoding) RN - 0 (RNA-Binding Proteins) RN - CLE6G00625 (N-methyladenosine) RN - K72T3FS567 (Adenosine) SB - IM MH - Adenosine/*analogs & derivatives/metabolism MH - Animals MH - Cell Line, Tumor MH - Cell Proliferation MH - Humans MH - Mice MH - Mice, Inbred BALB C MH - Mice, Knockout MH - Pancreatic Neoplasms/*metabolism MH - RNA, Long Noncoding/*metabolism MH - RNA-Binding Proteins/*physiology PMC - PMC7244758 COIS- The authors declare that they have no conflict of interest. EDAT- 2019/12/06 06:00 MHDA- 2021/09/09 06:00 PMCR- 2019/12/05 CRDT- 2019/12/06 06:00 PHST- 2019/05/16 00:00 [received] PHST- 2019/11/11 00:00 [accepted] PHST- 2019/11/02 00:00 [revised] PHST- 2019/12/06 06:00 [pubmed] PHST- 2021/09/09 06:00 [medline] PHST- 2019/12/06 06:00 [entrez] PHST- 2019/12/05 00:00 [pmc-release] AID - 10.1038/s41418-019-0461-z [pii] AID - 461 [pii] AID - 10.1038/s41418-019-0461-z [doi] PST - ppublish SO - Cell Death Differ. 2020 Jun;27(6):1782-1794. doi: 10.1038/s41418-019-0461-z. Epub 2019 Dec 5.