Abstract
We demonstrate that the histone deacetylase (HDAC) inhibitor drug trichostatin A (TSA) reduces spinal cord inflammation, demyelination, neuronal and axonal loss and ameliorates disability in the relapsing phase of experimental autoimmune encephalomyelitis (EAE), a model of multiple sclerosis (MS). TSA up-regulates antioxidant, anti-excitotoxicity and pro-neuronal growth and differentiation mRNAs. TSA also inhibits caspase activation and down-regulates gene targets of the pro-apoptotic E2F transcription factor pathway. In splenocytes, TSA reduces chemotactic, pro-Th1 and pro-proliferative mRNAs. A transcriptional imbalance in MS may contribute to immune dysregulation and neurodegeneration, and we identify HDAC inhibition as a transcriptional intervention to ameliorate this imbalance.
Publication types
-
Comparative Study
-
Research Support, N.I.H., Extramural
-
Research Support, Non-U.S. Gov't
-
Research Support, U.S. Gov't, Non-P.H.S.
-
Research Support, U.S. Gov't, P.H.S.
MeSH terms
-
Animals
-
Cell Death / drug effects
-
Cells, Cultured
-
Cerebral Cortex / cytology
-
Cytokines / genetics
-
Cytokines / metabolism
-
Disease Models, Animal
-
Drug Administration Schedule
-
Drug Interactions
-
Embryo, Mammalian
-
Encephalomyelitis, Autoimmune, Experimental / chemically induced
-
Encephalomyelitis, Autoimmune, Experimental / drug therapy*
-
Encephalomyelitis, Autoimmune, Experimental / genetics
-
Encephalomyelitis, Autoimmune, Experimental / pathology
-
Female
-
Gene Expression Profiling / methods
-
Gene Expression Regulation / drug effects*
-
Glycoproteins
-
Hydroxamic Acids / therapeutic use*
-
Immunohistochemistry / methods
-
Mice
-
Mice, Inbred C57BL
-
Myelin-Oligodendrocyte Glycoprotein
-
Neurons / drug effects
-
Oligonucleotide Array Sequence Analysis / methods
-
Peptide Fragments
-
Protein Synthesis Inhibitors / therapeutic use*
-
RNA, Messenger / metabolism
-
Rats
-
Rats, Sprague-Dawley
-
Reverse Transcriptase Polymerase Chain Reaction / methods
-
Severity of Illness Index
-
Spleen / drug effects
-
Spleen / metabolism
-
Tetrazolium Salts
-
Thiazoles
-
Time Factors
Substances
-
Cytokines
-
Glycoproteins
-
Hydroxamic Acids
-
Myelin-Oligodendrocyte Glycoprotein
-
Peptide Fragments
-
Protein Synthesis Inhibitors
-
RNA, Messenger
-
Tetrazolium Salts
-
Thiazoles
-
myelin oligodendrocyte glycoprotein (35-55)
-
trichostatin A
-
thiazolyl blue