# Protocol for 3D direct reprogramming of human glia into dopaminergic neurons with gene expression and immunocytochemistry validation

## TL;DR

This paper presents a detailed protocol for converting human glial cells into dopaminergic neurons using 3D reprogramming techniques validated by gene expression and immunocytochemistry.

## Contribution

A novel 3D protocol for direct reprogramming of human glial progenitor cells into dopaminergic neurons with validation methods is described.

## Key findings

- 3D spheroid formation combined with lentiviral transduction enables efficient neuronal conversion.
- Doxycycline-induced neuronal induction was successfully validated using gene expression and immunostaining.
- The protocol provides a versatile approach for generating dopaminergic neurons from human glial cells.

## Abstract

Direct reprogramming of somatic cells into neurons offers a promising strategy for studying neurological disorders and developing cell-based therapies. This protocol describes the 3D direct reprogramming of human glial progenitor cells into dopaminergic neurons. It includes spheroid formation, lentiviral transduction, neuronal induction using doxycycline, and validation via gene expression and immunocytochemistry. This versatile approach enables efficient reprogramming of human cells into dopaminergic neurons.

For complete details on the use and execution of this protocol, please refer to Giacomoni et al.1

•Steps for thawing and expanding human glial progenitor cells before reprogramming•Instructions for co-seeding glial cells with lentivirus to initiate 3D spheroid formation•Guidance on applying media changes to transduced spheroids to induce neuronal conversion•Procedures for validating neuronal identity using gene expression and immunostaining

Steps for thawing and expanding human glial progenitor cells before reprogramming

Instructions for co-seeding glial cells with lentivirus to initiate 3D spheroid formation

Guidance on applying media changes to transduced spheroids to induce neuronal conversion

Procedures for validating neuronal identity using gene expression and immunostaining

Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.

Direct reprogramming of somatic cells into neurons offers a promising strategy for studying neurological disorders and developing cell-based therapies. This protocol describes the 3D direct reprogramming of human glial progenitor cells into dopaminergic neurons. It includes spheroid formation, lentiviral transduction, neuronal induction using doxycycline, and validation via gene expression and immunocytochemistry. This versatile approach enables efficient reprogramming of human cells into dopaminergic neurons.