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DNA Methylation in Long-term Memory.

Xinyue Chen,Yueqing Peng,X. S. Liu

Published 2025 in Physiology

ABSTRACT

Understanding neural mechanisms of memory has been one of the key questions in biology. Long-term memory specifically, allows one to travel mentally without constraints of time and space (1). A long-term memory must have gone through a series of temporal processes: encoding, consolidation, storage, and retrieval. Decades of studies have revealed cellular and molecular mechanisms underlying each process. In this paper, we will first review the emerging concept of memory engrams and technologies of engram labeling, as these methods provide a new avenue to study the molecular mechanisms for memory. Then, we will focus on DNA methylation and its role in long-term memory. Lastly, we will discuss some key remaining questions in this field and their implications in memory-related disease.

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