Unknown

Dataset Information

0

Single-domain antibody-based noninvasive in vivo imaging of α-synuclein or tau pathology.


ABSTRACT: Intracellular deposition of α-synuclein and tau are hallmarks of synucleinopathies and tauopathies, respectively. Recently, several dye-based imaging probes with selectivity for tau aggregates have been developed, but suitable imaging biomarkers for synucleinopathies are still unavailable. Detection of both of these aggregates early in the disease process may allow for prophylactic therapies before functional impairments have manifested, highlighting the importance of developing specific imaging probes for these lesions. In contrast to the β sheet dyes, single-domain antibodies, found in camelids and a few other species, are highly specific, and their small size allows better brain entry and distribution than whole antibodies. Here, we have developed such imaging ligands via phage display libraries derived from llamas immunized with α-synuclein and tau preparations, respectively. These probes allow noninvasive and specific in vivo imaging of α-synuclein versus tau pathology in mice, with the brain signal correlating strongly with lesion burden. These small antibody derivatives have great potential for in vivo diagnosis of these diseases.

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC10171817 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature

altmetric image

Publications

Single-domain antibody-based noninvasive in vivo imaging of α-synuclein or tau pathology.

Jiang Yixiang Y   Lin Yan Y   Krishnaswamy Senthilkumar S   Pan Ruimin R   Wu Qian Q   Sandusky-Beltran Leslie A LA   Liu Mengyu M   Kuo Min-Hao MH   Kong Xiang-Peng XP   Congdon Erin E EE   Sigurdsson Einar M EM  

Science advances 20230510 19


Intracellular deposition of α-synuclein and tau are hallmarks of synucleinopathies and tauopathies, respectively. Recently, several dye-based imaging probes with selectivity for tau aggregates have been developed, but suitable imaging biomarkers for synucleinopathies are still unavailable. Detection of both of these aggregates early in the disease process may allow for prophylactic therapies before functional impairments have manifested, highlighting the importance of developing specific imaging  ...[more]

Similar Datasets

| S-EPMC6883785 | biostudies-literature
2020-05-26 | PXD016015 | Pride
| S-EPMC10524543 | biostudies-literature
| S-EPMC9749177 | biostudies-literature
| S-EPMC5577807 | biostudies-literature
| S-EPMC5960184 | biostudies-literature
| S-EPMC4626540 | biostudies-literature
| S-EPMC11567871 | biostudies-literature
| S-EPMC5681716 | biostudies-literature
| S-EPMC5886210 | biostudies-literature