PMID- 17620987 OWN - NLM STAT- MEDLINE DCOM- 20070831 LR - 20091119 IS - 0022-3069 (Print) IS - 0022-3069 (Linking) VI - 66 IP - 7 DP - 2007 Jul TI - Gene expressions specifically detected in motor neurons (dynactin 1, early growth response 3, acetyl-CoA transporter, death receptor 5, and cyclin C) differentially correlate to pathologic markers in sporadic amyotrophic lateral sclerosis. PG - 617-27 AB - In a differential gene expression profile, we showed previously that dynactin 1 (DCTN1), early growth response 3 (EGR3), acetyl-CoA transporter (ACATN), death receptor 5 (DR5), and cyclin C (CCNC) were prominently up- or downregulated in motor neurons of sporadic amyotrophic lateral sclerosis (ALS). In the present study, we examined the correlation between the expression levels of these genes and the levels of pathologic markers for motor neuron degeneration (i.e. cytoplasmic accumulation of phosphorylated neurofilament H [pNF-H] and ubiquitylated protein) and the numbers of residual motor neurons in 20 autopsies of patients with sporadic ALS. DCTN1 and EGR3 were widely downregulated, and the changes in gene expression were correlated to the number of residual motor neurons. In particular, DCTN1 was markedly downregulated in most residual motor neurons before the accumulation of pNF-H, even in cases with well-preserved motor neuron populations. ACATN, DR5, and CCNC were upregulated in subpopulations of residual motor neurons, and their expression levels were well correlated with the levels of pNF-H accumulation and the number of residual motor neurons. The expressions of DCTN1, EGR3, ACATN, and DR5 were all markedly altered before ubiquitylated protein accumulation. DCTN1 downregulation appears to be an early event before the appearance of neurodegeneration markers, whereas upregulations of DR5 and CCNC are relatively later phenomena associated with pathologic markers and leading to neuronal death. The sequence of motor neuron-specific gene expression changes in sporadic ALS can be beneficial information in developing appropriate therapeutic strategies for neurodegeneration. FAU - Jiang, Yue-Mei AU - Jiang YM AD - Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan. FAU - Yamamoto, Masahiko AU - Yamamoto M FAU - Tanaka, Fumiaki AU - Tanaka F FAU - Ishigaki, Shinsuke AU - Ishigaki S FAU - Katsuno, Masahisa AU - Katsuno M FAU - Adachi, Hiroaki AU - Adachi H FAU - Niwa, Jun-Ichi AU - Niwa J FAU - Doyu, Manabu AU - Doyu M FAU - Yoshida, Mari AU - Yoshida M FAU - Hashizume, Yoshio AU - Hashizume Y FAU - Sobue, Gen AU - Sobue G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Neuropathol Exp Neurol JT - Journal of neuropathology and experimental neurology JID - 2985192R RN - 0 (CCNC protein, human) RN - 0 (Cyclin C) RN - 0 (Cyclins) RN - 0 (EGR3 protein, human) RN - 0 (Membrane Transport Proteins) RN - 0 (Neurofilament Proteins) RN - 0 (Receptors, TNF-Related Apoptosis-Inducing Ligand) RN - 0 (Ubiquitin) RN - 108688-71-7 (neurofilament protein H) RN - 144516-98-3 (Early Growth Response Protein 3) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Amyotrophic Lateral Sclerosis/*pathology/*physiopathology MH - Cyclin C MH - Cyclins/metabolism MH - Early Growth Response Protein 3/metabolism MH - Female MH - Gene Expression Regulation/*physiology MH - Humans MH - Immunohistochemistry/methods MH - In Situ Hybridization/methods MH - Male MH - Membrane Transport Proteins/metabolism MH - Middle Aged MH - Motor Neurons/*metabolism MH - Neurofilament Proteins/metabolism MH - Oligonucleotide Array Sequence Analysis/methods MH - Receptors, TNF-Related Apoptosis-Inducing Ligand/metabolism MH - Spinal Cord/pathology MH - Statistics, Nonparametric MH - Ubiquitin/metabolism EDAT- 2007/07/11 09:00 MHDA- 2007/09/01 09:00 CRDT- 2007/07/11 09:00 PHST- 2007/07/11 09:00 [pubmed] PHST- 2007/09/01 09:00 [medline] PHST- 2007/07/11 09:00 [entrez] AID - 00005072-200707000-00007 [pii] AID - 10.1097/nen.0b013e318093ece3 [doi] PST - ppublish SO - J Neuropathol Exp Neurol. 2007 Jul;66(7):617-27. doi: 10.1097/nen.0b013e318093ece3.