PMID- 18672002 OWN - NLM STAT- MEDLINE DCOM- 20081106 LR - 20211203 IS - 0165-0270 (Print) IS - 0165-0270 (Linking) VI - 174 IP - 1 DP - 2008 Sep 15 TI - Closing the phenotypic gap between transformed neuronal cell lines in culture and untransformed neurons. PG - 31-41 LID - 10.1016/j.jneumeth.2008.06.031 [doi] AB - Studies of neuronal dysfunction in the central nervous system (CNS) are frequently limited by the failure of primary neurons to propagate in vitro. Neuronal cell lines can be substituted for primary cells but they often misrepresent normal conditions. We hypothesized that a three-dimensional (3D) cell culture system would drive the phenotype of transformed neurons closer to that of untransformed cells, as has been demonstrated in non-neuronal cell lines. In our studies comparing 3D versus two-dimensional (2D) culture, neuronal SH-SY5Y (SY) cells underwent distinct morphological changes combined with a significant drop in their rate of cell division. Expression of the proto-oncogene N-myc and the RNA-binding protein HuD was decreased in 3D culture as compared to standard 2D conditions. We observed a decline in the anti-apoptotic protein Bcl-2 in 3D culture, coupled with increased expression of the pro-apoptotic proteins Bax and Bak. Moreover, thapsigargin (TG)-induced apoptosis was enhanced in the 3D cells. Microarray analysis demonstrated significantly differing mRNA levels for over 700 genes in the cells of the two culture types, and indicated that alterations in the G1/S cell-cycle progression contributed to the diminished doubling rate in the 3D-cultured SY cells. These results demonstrate that a 3D culture approach narrows the phenotypic gap between neuronal cell lines and primary neurons. The resulting cells may readily be used for in vitro research of neuronal pathogenesis. FAU - Myers, Tereance A AU - Myers TA AD - Division of Bacteriology & Parasitology, Tulane National Primate Research Center, 18703 Three Rivers Road, Covington, LA 70433, USA. FAU - Nickerson, Cheryl A AU - Nickerson CA FAU - Kaushal, Deepak AU - Kaushal D FAU - Ott, C Mark AU - Ott CM FAU - Honer zu Bentrup, Kerstin AU - Honer zu Bentrup K FAU - Ramamurthy, Rajee AU - Ramamurthy R FAU - Nelman-Gonzalez, Mayra AU - Nelman-Gonzalez M FAU - Pierson, Duane L AU - Pierson DL FAU - Philipp, Mario T AU - Philipp MT LA - eng GR - P51 RR000164-46/RR/NCRR NIH HHS/United States GR - RR 00164/RR/NCRR NIH HHS/United States GR - R01 NS048952-04/NS/NINDS NIH HHS/United States GR - P51 RR000164/RR/NCRR NIH HHS/United States GR - R01 NS048952/NS/NINDS NIH HHS/United States GR - NS 048952/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20080710 PL - Netherlands TA - J Neurosci Methods JT - Journal of neuroscience methods JID - 7905558 RN - 0 (Apoptosis Regulatory Proteins) RN - 0 (Cell Cycle Proteins) RN - 0 (ELAV Proteins) RN - 0 (ELAV-Like Protein 4) RN - 0 (ELAVL4 protein, human) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (MAS1 protein, human) RN - 0 (NMI protein, human) RN - 0 (Proto-Oncogene Mas) RN - 0 (Proto-Oncogene Proteins c-myc) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - Apoptosis/genetics MH - Apoptosis Regulatory Proteins/genetics MH - Cell Culture Techniques/methods MH - Cell Cycle Proteins/genetics MH - Cell Differentiation/physiology MH - Cell Division/physiology MH - Cell Line, Transformed MH - Cell Proliferation MH - Cell Shape/physiology MH - ELAV Proteins/genetics MH - ELAV-Like Protein 4 MH - Gene Expression Profiling MH - Genes, cdc/physiology MH - Humans MH - Intracellular Signaling Peptides and Proteins MH - Neurons/*cytology/*metabolism MH - Oligonucleotide Array Sequence Analysis MH - Organ Culture Techniques/methods MH - PC12 Cells MH - Phenotype MH - Proto-Oncogene Mas MH - Proto-Oncogene Proteins c-myc/genetics MH - RNA, Messenger/analysis/genetics MH - Rats PMC - PMC2586177 MID - NIHMS69271 EDAT- 2008/08/02 09:00 MHDA- 2008/11/07 09:00 PMCR- 2009/09/15 CRDT- 2008/08/02 09:00 PHST- 2008/04/22 00:00 [received] PHST- 2008/06/18 00:00 [revised] PHST- 2008/06/19 00:00 [accepted] PHST- 2008/08/02 09:00 [pubmed] PHST- 2008/11/07 09:00 [medline] PHST- 2008/08/02 09:00 [entrez] PHST- 2009/09/15 00:00 [pmc-release] AID - S0165-0270(08)00380-4 [pii] AID - 10.1016/j.jneumeth.2008.06.031 [doi] PST - ppublish SO - J Neurosci Methods. 2008 Sep 15;174(1):31-41. doi: 10.1016/j.jneumeth.2008.06.031. Epub 2008 Jul 10.