This document is a correction notice for an article titled "Histone Deacetylase Inhibitor RGFP109 Overcomes Temozolomide Resistance by Blocking NF-κB-Dependent Transcription in Glioblastoma Cell Lines" published in the journal Neurochemical Research. The correction states that there was an error in the protein bands for Total IκBα in Fig. 4B and α-tubulin in Fig. 5C, which were interchanged. The corrected figures are provided in the notice. The correction notice also includes a publisher's note stating that Springer Nature remains neutral regarding jurisdictional claims and institutional affiliations.