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Objective Spinal cord injury (SCI) is a neurological disease with high incidence and disability. In this paper, we made a foundational study in long non-coding RNA paternally expressed gene 10 (lncRNA PEG10) at PC-12 cells. Methods We used CCK8, flow cytometry, migration and invasion assay to detect changes at the cellular level. PEG10, microRNA-34a-5p (miR-34a-5p) and TLX transfected by transfection assay and amplified by real-time quantitative PCR (qRT-PCR). TLX expression and proteins about apoptosis and pathways were investigated by Western blot. Additionally, the relationship between PEG10 and miR-34a-5p, miR-34a-5p and TLX were examined through luciferase assay. Results H2O2-injury model was established. Knockdown PEG10 deteriorated H2O2-injury. miR-34a-5p was confirmed as a target of PEG10 and miR-34a-5p inhibitor remitted PEG10-induced H2O2-injury. Moreover, TLX was confirmed as a target miR-34a-5p and TLX remitted H2O2-injury. At last, TLX worked in H2O2-injury via Smad and Wnt/β-catenin pathways. Conclusion Knockdown PEG10 remitted H2O2-injury of PC-12 cells by targeting miR-34a-5p/TLX, and the behavior may be involved in Smad and Wnt/β-catenin pathways.

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Editor-in-Chief. As originally reported in https://pubpeer.com/publications/9D9EBE8EAD0041A196D37E10E1BF18, Fig. 6I shows evidence of data manipulation, visible as patterns of repeated background artifacts in independent western blots that are unlikely to be the result of serendipity. The authors were contacted to investigate further the validity of these allegations and to provide the raw data but the journal received no response and therefore the Editor-in-Chief decided to retract the article.