TDP-43 and Limbic-Predominant Age-Related TDP-43 Encephalopathy

Lumi Zhang; Yi Chen; Min Liu; Yunyun Wang; Guoping Peng

doi:10.3389/fnagi.2019.00376

TDP-43 and Limbic-Predominant Age-Related TDP-43 Encephalopathy

Front Aging Neurosci. 2020 Jan 14:11:376. doi: 10.3389/fnagi.2019.00376. eCollection 2019.

Authors

Lumi Zhang¹, Yi Chen¹, Min Liu^{1

2}, Yunyun Wang^{1

3}, Guoping Peng¹

Affiliations

¹ Department of Neurology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
² Department of Neurology, Zhejiang University ShuLan International Hospital, Hangzhou, China.
³ Department of Neurology, Shengzhou People's Hospital, Shengzhou, China.

Abstract

Through a number of an extensive autopsy, biomarker, and genomics studies, researchers have recently defined a novel type of dementia known as limbic-predominant age-related TDP-43 encephalopathy (LATE). LATE is perhaps best characterized by the presence of hyperphosphorylated TDP-43, which plays multi-functional roles through interactions with DNA and RNA, leading to significant alterations in the transcription and translation of particular genes. As individuals of advanced age represent a rapidly growing demographic group globally, there is a steadily increasing rate of LATE incidence that has to date received insufficient recognition despite its serious implications for public health. TDP-43 is the common pathology of various age-related dementia, therefore, it may be a potential and promising therapeutic target for such diseases. In the present review, we discuss the pathways regulating TDP-43 expression, metabolism, and disease activity in order to better understand the link between TDP-43 proteinopathy and LATE at the genetic, pathological, and clinical levels.

Keywords: Alzheimer’s disease; TDP-43; dementia; hippocampal sclerosis; neurodegeneration; neuropathology.