PMID- 7534861 OWN - NLM STAT- MEDLINE DCOM- 19950425 LR - 20190825 IS - 0169-328X (Print) IS - 0169-328X (Linking) VI - 27 IP - 2 DP - 1994 Dec TI - Stabilization of neurofilament transcripts during postnatal development. PG - 215-20 AB - Neurofilament (NF) mRNAs in primary sensory neurons are long-lived transcripts that undergo transcription-dependent destabilization when placed in primary culture [32]. Destabilization of NF transcripts implies that the transcripts are stabilized in high-expressing neurons and that stabilization may coordinate and increase levels of NF expression. The present study examines the stabilities of the three NF subunit mRNAs in postnatal cultures of dorsal root ganglia (DRG) to determine whether increased stability of NF mRNAs could be responsible for the coordinate postnatal upregulation of the three NF subunits [29]. The studies show that the light (NF-L), mid-sized (NF-M) and heavy (NF-H) NF mRNAs are lost at 8 and 16 h in primary cultures from postnatal day 2 (P2) rats, but much less so in cultures from postnatal day 16 (P16) and day 30 (P30) rats. Losses of each NF mRNAs in P2 cultures occurs simultaneously in the presence or absence of actinomycin. The findings support the view that stabilization of NF transcripts contribute to the high and coordinate level NF expression and that components of the stabilizing process are acquired during postnatal development. FAU - Schwartz, M L AU - Schwartz ML AD - Division of Neuropathology, University of Pennsylvania Medical School, Philadelphia 19104-6079. FAU - Shneidman, P S AU - Shneidman PS FAU - Bruce, J AU - Bruce J FAU - Schlaepfer, W W AU - Schlaepfer WW LA - eng GR - K08 NS01451/NS/NINDS NIH HHS/United States GR - R01 NS15722/NS/NINDS NIH HHS/United States GR - T32 NS07064/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Brain Res Mol Brain Res JT - Brain research. Molecular brain research JID - 8908640 RN - 0 (Actins) RN - 0 (Neurofilament Proteins) RN - 0 (RNA, Messenger) RN - 1CC1JFE158 (Dactinomycin) SB - IM MH - Actins MH - Animals MH - Cells, Cultured MH - Dactinomycin/pharmacology MH - Ganglia, Spinal/physiology MH - Gene Expression/genetics MH - Neurofilament Proteins/*genetics MH - Neurons/physiology MH - RNA, Messenger/genetics MH - Rats MH - Up-Regulation EDAT- 1994/12/01 00:00 MHDA- 1994/12/01 00:01 CRDT- 1994/12/01 00:00 PHST- 1994/12/01 00:00 [pubmed] PHST- 1994/12/01 00:01 [medline] PHST- 1994/12/01 00:00 [entrez] AID - 0169-328X(94)90003-5 [pii] AID - 10.1016/0169-328x(94)90003-5 [doi] PST - ppublish SO - Brain Res Mol Brain Res. 1994 Dec;27(2):215-20. doi: 10.1016/0169-328x(94)90003-5.