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Updated: Jul 30, 2025

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images
Published on: September 7, 2017
Loss of CpG island immunity to DNA methylation induced by mutation
Bernhard Horsthemke1, Adrian Bird2
1Institut Für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, 45122, Essen, Germany. bernhard.horsthemke@uni-due.de.
Abstract:
The inheritance of acquired traits in mammals is a highly controversial topic in biology. Recently, Takahashi et al. (Cell 186:715-731, 2023) have reported that insertion of CpG-free DNA into a CpG island (CGI) can induce DNA methylation of the CGI and that this aberrant methylation pattern can be transmitted across generations, even after removal of the foreign DNA. These results were interpreted as evidence for transgenerational inheritance of acquired DNA methylation patterns. Here, we discuss several interpretational issues raised by this study and consider alternative explanations.
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