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Related Experiment Video

Updated: Jan 19, 2026

In Vitro Aggregation Assays Using Hyperphosphorylated Tau Protein

In Vitro Aggregation Assays Using Hyperphosphorylated Tau Protein

Published on: January 2, 2015

Tau Phosphorylation and Aggregation in the Developing Human Brain.

Marco M Hefti^1,2,3, SoongHo Kim^2,4,5, Aaron J Bell^2,6

¹Department of Pathology.

Journal of Neuropathology and Experimental Neurology

|September 11, 2019

Summary

This summary is machine-generated.

Human fetal brains exhibit tau hyperphosphorylation, similar to Alzheimer

Keywords:

Brain development Oligomers Phosphorylation Protein aggregation Tau protein

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Last Updated: Jan 19, 2026

In Vitro Aggregation Assays Using Hyperphosphorylated Tau Protein

In Vitro Aggregation Assays Using Hyperphosphorylated Tau Protein

Published on: January 2, 2015

Detection of Phosphorylated Tau Proteins in Mouse Brain Samples Using Western Blot Analysis

Detection of Phosphorylated Tau Proteins in Mouse Brain Samples Using Western Blot Analysis

Lentiviral-Mediated Transduction of Human Neurons for Tau Protein Aggregation Analysis

Lentiviral-Mediated Transduction of Human Neurons for Tau Protein Aggregation Analysis

Area of Science:

Neuroscience
Cell Biology
Biochemistry

Background:

Tau hyperphosphorylation is central to Alzheimer disease (AD) and tauopathies.
While rodent studies suggest roles in fetal brain development, human data are limited.

Purpose of the Study:

To investigate tau phosphorylation patterns in human fetal and adult brain tissue.
To compare fetal tau phosphorylation with that observed in Alzheimer disease.

Main Methods:

Immunohistochemistry and immunoblotting on human fetal and adult autopsy brain tissue.
Utilized antibodies targeting specific phosphorylated tau residues (e.g., pSer214, pSer202, pThr231).

Main Results:

90% of fetal brains showed pSer214; many also positive for pSer202 and pSer396/pSer404.
Specific residues like pThr231 and pSer409 were largely negative in fetal tissue but associated with AD.
Fetal brains contained non-toxic phospho-tau aggregates.

Conclusions:

Fetal tau phosphorylation partially overlaps with AD, but some residues are AD-specific.
The fetal brain demonstrates resilience against forming toxic tau aggregates.
Understanding fetal tau mechanisms may offer insights into aging brain tauopathies.