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Related Experiment Video

Updated: Jun 21, 2026

Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging

Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging

Published on: October 20, 2017

Functional amyloids signal their arrival.

Matthew P Badtke¹, Neal D Hammer, Matthew R Chapman

¹Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.

Science Signaling

|July 23, 2009

Summary

This summary is machine-generated.

Functional amyloids, once linked to disease, are now recognized as vital for normal cell function. Research reveals they act as storage reservoirs for peptide hormones in mammals.

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Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging

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Area of Science:

Biochemistry
Cellular Biology
Neuroscience

Background:

Amyloids are traditionally associated with misfolded protein aggregates and neurodegenerative diseases.
Recent discoveries highlight the existence and importance of functional amyloids in normal cellular physiology.
Functional amyloid production is a highly regulated process with diverse cellular roles.

Purpose of the Study:

To explore the novel role of amyloids as storage reservoirs for peptide hormones within mammalian secretory granules.
To investigate the formation of amyloid structures by peptide hormones.
To understand the physiological significance of hormone amyloid deposits.

Main Methods:

In vitro amyloid formation assays for various peptide hormones.
In vivo studies in rats and mice to identify and characterize hormone amyloid deposits in secretory granules.
Analysis of the structure and localization of these amyloid deposits.

Main Results:

Over 30 different peptide hormones were found to form amyloids in vitro.
Hormone amyloid deposits were identified within secretory granules in both rats and mice.
This demonstrates a new function for amyloids in hormone storage.

Conclusions:

Amyloid formation is not solely linked to disease but plays a crucial role in normal cellular functions.
Functional amyloids serve as storage reservoirs for peptide hormones in mammalian secretory granules.
This discovery opens new avenues for research in both peptide hormone biology and functional amyloid fields.