Differences between cultured cortical neurons by trypsin and papain digestion
Chang-Yan Hu1, Ruo-Lan Du2, Qiu-Xia Xiao1
1Animal Zoology Department Kunming Medical University Kunming Yunnan China.
Ibrain
|October 3, 2023
Summary
Trypsin is more effective for neuronal digestion than papain, yielding more neurons with better cell size, axonal length, and higher transfection efficiency. This study highlights trypsin as a superior enzyme for cortical neuron isolation and manipulation.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Neuronal digestion is crucial for studying neuronal function and development.
- Enzyme selection impacts neuronal yield, morphology, and viability.
Purpose of the Study:
- To compare the efficiency of trypsin and papain for cortical neuron digestion.
- To determine the optimal enzyme for neuronal isolation and subsequent lentiviral transfection.
Main Methods:
- Cortical tissues from Sprague-Dawley rats were digested using either trypsin or papain.
- Neuronal morphology, cell count, axonal length, and purity were assessed.
- Lentiviral transfection efficiency and neuronal morphology post-transfection were evaluated.
Main Results:
- Trypsin digestion resulted in a higher number of cortical neurons with larger cell bodies and longer axons compared to papain.
- The trypsin group exhibited significantly fewer impurities.
- Transfection efficiency was higher in the trypsin group (57.77%) than the papain group (53.83%).
Conclusions:
- Trypsin is a more efficient enzyme for cortical neuron digestion than papain.
- Trypsin promotes better neuronal morphology and higher lentiviral transfection rates.
- These findings suggest trypsin as the preferred enzyme for neuronal isolation and genetic manipulation.
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