PMID- 11408619 OWN - NLM STAT- MEDLINE DCOM- 20010726 LR - 20220321 IS - 0036-8075 (Print) IS - 0036-8075 (Linking) VI - 293 IP - 5529 DP - 2001 Jul 20 TI - Loss of huntingtin-mediated BDNF gene transcription in Huntington's disease. PG - 493-8 AB - Huntingtin is a 350-kilodalton protein of unknown function that is mutated in Huntington's disease (HD), a neurodegenerative disorder. The mutant protein is presumed to acquire a toxic gain of function that is detrimental to striatal neurons in the brain. However, loss of a beneficial activity of wild-type huntingtin may also cause the death of striatal neurons. Here we demonstrate that wild-type huntingtin up-regulates transcription of brain-derived neurotrophic factor (BDNF), a pro-survival factor produced by cortical neurons that is necessary for survival of striatal neurons in the brain. We show that this beneficial activity of huntingtin is lost when the protein becomes mutated, resulting in decreased production of cortical BDNF. This leads to insufficient neurotrophic support for striatal neurons, which then die. Restoring wild-type huntingtin activity and increasing BDNF production may be therapeutic approaches for treating HD. FAU - Zuccato, C AU - Zuccato C AD - Department of Pharmacological Sciences, University of Milano, Via Balzaretti 9, 20133 Milano, Italy. FAU - Ciammola, A AU - Ciammola A FAU - Rigamonti, D AU - Rigamonti D FAU - Leavitt, B R AU - Leavitt BR FAU - Goffredo, D AU - Goffredo D FAU - Conti, L AU - Conti L FAU - MacDonald, M E AU - MacDonald ME FAU - Friedlander, R M AU - Friedlander RM FAU - Silani, V AU - Silani V FAU - Hayden, M R AU - Hayden MR FAU - Timmusk, T AU - Timmusk T FAU - Sipione, S AU - Sipione S FAU - Cattaneo, E AU - Cattaneo E LA - eng GR - E.0840/TI_/Telethon/Italy PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20010614 PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (HTT protein, human) RN - 0 (Htt protein, mouse) RN - 0 (Huntingtin Protein) RN - 0 (Nerve Growth Factors) RN - 0 (Nerve Tissue Proteins) RN - 0 (Nuclear Proteins) SB - IM CIN - Science. 2001 Jul 20;293(5529):445-6. PMID: 11463904 MH - 3T3 Cells MH - Animals MH - Apoptosis MH - Brain-Derived Neurotrophic Factor/biosynthesis/*genetics/metabolism MH - Cell Survival MH - Cells, Cultured MH - Cerebral Cortex/cytology/*metabolism MH - Corpus Striatum/cytology/*metabolism/pathology MH - Exons MH - Hippocampus/cytology/metabolism/pathology MH - Humans MH - Huntingtin Protein MH - Huntington Disease/*genetics/metabolism/pathology MH - Mice MH - Mice, Transgenic MH - Mutation MH - Nerve Degeneration MH - Nerve Growth Factors/genetics/metabolism MH - Nerve Tissue Proteins/genetics/*physiology MH - Neurons/*metabolism/pathology MH - Nuclear Proteins/genetics/*physiology MH - Promoter Regions, Genetic MH - Transcription, Genetic MH - Transfection EDAT- 2001/06/16 10:00 MHDA- 2001/07/28 10:01 CRDT- 2001/06/16 10:00 PHST- 2001/06/16 10:00 [pubmed] PHST- 2001/07/28 10:01 [medline] PHST- 2001/06/16 10:00 [entrez] AID - 1059581 [pii] AID - 10.1126/science.1059581 [doi] PST - ppublish SO - Science. 2001 Jul 20;293(5529):493-8. doi: 10.1126/science.1059581. Epub 2001 Jun 14.