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  • Microfluidic separation of axonal and somal compartments of neural progenitor cells differentiated in a 3D matrix.

Microfluidic separation of axonal and somal compartments of neural progenitor cells differentiated in a 3D matrix.

STAR protocols (2022-01-22)
Madhura S Lotlikar, Marina B Tarantino, Mehdi Jorfi, Dora M Kovacs, Rudolph E Tanzi, Raja Bhattacharyya
ABSTRACT

This protocol describes the differentiation of human neural progenitor cells (hNPCs) in a microfluidic device containing a thin 3D matrix with two separate chambers, enabling a cleaner separation between axons and soma/bulk neurons. We have used this technique to study how mitochondria-associated ER membranes (MAMs) regulate the generation of somal and axonal amyloid β (Aβ) in FAD hNPCs, a cellular model of Alzheimer's disease. This protocol also details the quantification of Aβ molecules and isolation of pure axons via axotomy. For complete details on the use and execution of this profile, please refer to Bhattacharyya et al. (2021).

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Anti-APP A4 Antibody, a.a. 66-81 of APP {NT}, clone 22C11, clone 22C11, Chemicon®, from mouse
Sigma-Aldrich
Amyloid β Protein Fragment 1-40, ≥90% (HPLC), powder