Abstract
Satellite glial cells (SGCs) tightly surround neurons and modulate sensory transmission in dorsal root ganglion (DRG). At present, the biological property of primary SGCs in culture deserves further investigation. To reveal the key factor for SGCs growth and survival, we examined the effects of different culture supplementations containing Dulbecco’s Modified Eagle Medium (DMEM)/F12, DMEM high glucose (HG) or Neurobasal-A (NB). CCK-8 proliferation assay showed an increased proliferation of SGCs in DMEM/F12 and DMEM/HG, but not in NB medium. Bax, AnnexinV, and propidium iodide (PI) staining results showed that NB medium caused cell death and apoptosis. We showed that glutamine was over 2.5 mM in DMEM/F12 and DMEM/HG, whereas it was absence in NB medium. Interestingly, exogenous glutamine application significantly reversed the poor proliferation and cell death of SGCs in NB medium. These findings demonstrated that DMEM/F12 medium was optimal to get high-purity SGCs. Glutamine was the key molecule to maintain SGCs growth and survival in culture. Here, we provided a novel approach to get high-purity SGCs by changing the key component of culture medium. Our study shed a new light on understanding the biological property and modulation of glial cells of primary sensory ganglia.
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Data Availability
The data that support the findings of this study are available from the corresponding author upon reasonable request. The authors declared that all the data had been included in the manuscript, and the raw data could be obtained from the corresponding author with reasonable request.
Abbreviations
- Bax:
-
Bcl-2 Associated protein X
- DAPI:
-
4',6-Diamidino-2-phenylindole dihydrochloride
- DMEM:
-
Dulbecco’s Modified Eagle Medium
- HG:
-
High glucose
- DRG:
-
Dorsal root ganglion
- GS:
-
Glutamine synthetase
- GFAP:
-
Glial fibrillary acidic protein
- NB:
-
Neurobasal-A
- PI:
-
Propidium iodide
- SGC:
-
Satellite glial cell
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Acknowledgements
This study was funded by grants from NSFC grant 31871067, 81571073, Shaanxi Science Fund 2020JZ-27, 2018JC-014, Experimental Animal grant SYDW-2017-08, FMMU grant 2021HKYX29, and Tangdu Hospital grant 2018QYTS001, 2021SHRC013.
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Wei, N., Liu, YP., Wang, RR. et al. Glutamine Maintains Satellite Glial Cells Growth and Survival in Culture. Neurochem Res 47, 3635–3646 (2022). https://doi.org/10.1007/s11064-022-03614-z
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DOI: https://doi.org/10.1007/s11064-022-03614-z