PMID- 11597593 OWN - NLM STAT- MEDLINE DCOM- 20020114 LR - 20190614 IS - 0006-8993 (Print) IS - 0006-8993 (Linking) VI - 916 IP - 1-2 DP - 2001 Oct 19 TI - GDNF is a major component of trophic activity in DA-depleted striatum for survival and neurite extension of DAergic neurons. PG - 76-84 AB - Extracts from dopamine (DA)-depleted striatal tissue (lesion extract) and from intact striatal tissue (intact extract) were prepared, and trophic activities in these extracts were evaluated using survival and neurite extension of DAergic neurons as indices. Levels of brain-derived neurotrophic factor (BDNF), basic fibroblast growth factor (bFGF), glial cell-line derived neurotrophic factor (GDNF) and neurotrophin-3 (NT-3) in extracts were measured using enzyme-linked immunosorbent assay (ELISA). The lesion extract exhibited a stronger trophic activity on survival and neurite extension of DAergic neurons than intact extract. In lesion extract, bFGF was slightly and GDNF was significantly increased, while BDNF and NT-3 were the same level in each extract. The peak increase of bFGF and GDNF was during 2 to 3 weeks after DA depletion. Trophic activity of extract was strongly attenuated after immunoprecipitation of GDNF and partly attenuated after immunoprecipitation of bFGF. In parallel immunohistological study, no significant variations were found for striatal microtubule-associated protein-2 (MAP-2)- nor OX-41-immunoreactive cells, while the number of strongly labeled glial fibrillary acidic protein (GFAP)-immunoreactive cells were increased in DA-depleted striatum, suggesting reactive gliosis. Data suggest that bFGF is a minor, while GDNF is a major component of trophic activity for DAergic neurons in DA-depleted striatum, and increased bFGF and GDNF levels may be mediated partly by reactive gliosis. FAU - Nakajima, K AU - Nakajima K AD - Department of Physiology, Nagoya City University Medical School, Kawasumi 1, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan. jaface@ylw.mmtr.or.jp FAU - Hida, H AU - Hida H FAU - Shimano, Y AU - Shimano Y FAU - Fujimoto, I AU - Fujimoto I FAU - Hashitani, T AU - Hashitani T FAU - Kumazaki, M AU - Kumazaki M FAU - Sakurai, T AU - Sakurai T FAU - Nishino, H AU - Nishino H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cell Extracts) RN - 0 (Gdnf protein, rat) RN - 0 (Glial Cell Line-Derived Neurotrophic Factor) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Nerve Growth Factors) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neuroprotective Agents) RN - 0 (Neurotrophin 3) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 9005-49-6 (Heparin) RN - VTD58H1Z2X (Dopamine) SB - IM MH - Animals MH - Astrocytes/metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Differentiation/drug effects/physiology MH - Cell Extracts/chemistry/pharmacology MH - Cell Survival/drug effects/*physiology MH - Cells, Cultured/cytology/drug effects/metabolism MH - Dopamine/*deficiency MH - Fibroblast Growth Factor 2/metabolism/pharmacology MH - Glial Cell Line-Derived Neurotrophic Factor MH - Glial Fibrillary Acidic Protein/metabolism MH - Heparin MH - Immunohistochemistry MH - Microtubule-Associated Proteins/metabolism MH - Neostriatum/metabolism/physiopathology MH - *Nerve Growth Factors MH - Nerve Tissue Proteins/*metabolism/pharmacology MH - Neurites/*drug effects/metabolism/ultrastructure MH - Neuroprotective Agents/*metabolism/pharmacology MH - Neurotrophin 3/metabolism MH - Parkinson Disease/drug therapy/*metabolism/physiopathology MH - Rats MH - Rats, Wistar MH - Substantia Nigra/*drug effects/growth & development/metabolism EDAT- 2001/10/13 10:00 MHDA- 2002/01/15 10:01 CRDT- 2001/10/13 10:00 PHST- 2001/10/13 10:00 [pubmed] PHST- 2002/01/15 10:01 [medline] PHST- 2001/10/13 10:00 [entrez] AID - S0006-8993(01)02866-9 [pii] AID - 10.1016/s0006-8993(01)02866-9 [doi] PST - ppublish SO - Brain Res. 2001 Oct 19;916(1-2):76-84. doi: 10.1016/s0006-8993(01)02866-9.