Abstract：Objective To evaluate the efficiency of a modified culture method for rat cerebral cortical astrocytes in vitro. Methods The astrocytes derived from the cerebral cortex of 3-day-old Sprague-Dawley rats were first purified as described previously, then the cells were replanted at a low density. The culture flask was changed after 1 hour and substratum was replaced after 24 hours. Cells were syncretized to a monolayer, followed by cell passage. After three passages the cells were cultured in DMEM medium containing 10% fetal serum for a long period. The derivation of the cells was identified by immunofluorescent staining with anti-GFAP polyclonal antibodies. Results A variety of morphologically distinct astrocytes with many long processes and small cell bodies were obtained. Finally an astrocytic network occurred through cellular process connections. The immunofluorescent staining demonstrated the percentage of GFAP-positive cells was above 98%. Conclusions The modified culture method for astrocytes from rat cerebral tissue is reliable, with a high purity. The cultured astrocytes have a similar morphological development to those in vivo.
He L, Zhang X, Wei X, eT al. ProgesTerone aTTenuaTes aquaporin-4 expression in an asTrocyTe model of ischemia/reperfusion[J]. Neurochem Res, 2014, 39(11): 2251-2261.
Paixão S, Klein R. Neuron-asTrocyTe communicaTion and synapTic plasTiciTy[J]. Curr Opin Neurobiol, 2010, 20(4): 466-473.
[7]
AlbrechT J, Sidoryk-Wegrzynowicz M, Zielinska M, eT al. Roles of gluTamine in neuroTransmission[J]. Neuron Glia Biol, 2011, 6(4): 263-276.
[8]
TakaTa N, Mishima T, HisaTsune C, eT al. AsTrocyTe calcium signaling Transforms cholinergic modulaTion To corTical plasTiciTy in vivo[J]. J Neurosci, 2011, 31(49): 18155-18165.
[9]
Sosunov AA, Guilfoyle E, Wu X, eT al. PhenoTypic conversions of "proToplasmic" To "reacTive" asTrocyTes in Alexander disease[J]. J Neurosci, 2013, 33(17): 7439-7450.
[10]
Liu Y, Wang L, Long Z, eT al. ProToplasmic asTrocyTes enhance The abiliTy of neural sTem cells To differenTiaTe inTo neurons in viTro[J]. PLoS One, 2012; 7(5): e38243.
[11]
Liu Y, Liu RR, Wang L, eT al.The effecTs of differenT phenoType asTrocyTes on neural sTem cells differenTiaTion in co-culTure[J]. Neurosci LeTT, 2012, 508(2): 61-66.
[12]
Jukkola P, Guerrero T, Gray V, eT al. AsTrocyTes differenTially respond To inflammaTory auToimmune insulTs and imbalances of neural acTiviTy [J]. AcTa NeuropaThol Commun, 2013, 1(1): 70.
[13]
Oberheim NA, Goldman SA, Nedergaard M. HeTerogeneiTy of asTrocyTic form and funcTion [J]. MeThods Mol Biol, 2012, 814: 23-45.
Nagayasu Y, MoriTa SY, Hayashi H, eT al. Increasing cellular level of phosphaTidic acid enhances FGF-1 producTion in long Term-culTured raT asTrocyTes [J]. Brain Res, 2014, 1563: 31-40.
