WO2013180214A1 - 筋萎縮性側索硬化症および/または前頭側頭葉変性症のモデルマウス - Google Patents
筋萎縮性側索硬化症および/または前頭側頭葉変性症のモデルマウス Download PDFInfo
- Publication number
- WO2013180214A1 WO2013180214A1 PCT/JP2013/065029 JP2013065029W WO2013180214A1 WO 2013180214 A1 WO2013180214 A1 WO 2013180214A1 JP 2013065029 W JP2013065029 W JP 2013065029W WO 2013180214 A1 WO2013180214 A1 WO 2013180214A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tdp
- gene
- mutant
- vertebrate
- seq
- Prior art date
Links
- 206010002026 amyotrophic lateral sclerosis Diseases 0.000 title claims abstract description 27
- 208000002339 Frontotemporal Lobar Degeneration Diseases 0.000 title claims abstract description 23
- 201000011240 Frontotemporal dementia Diseases 0.000 title claims abstract description 23
- 101710150875 TAR DNA-binding protein 43 Proteins 0.000 claims abstract description 156
- 241000251539 Vertebrata <Metazoa> Species 0.000 claims abstract description 41
- 150000001413 amino acids Chemical class 0.000 claims abstract description 41
- 235000001014 amino acid Nutrition 0.000 claims abstract description 39
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims abstract description 34
- 102000008300 Mutant Proteins Human genes 0.000 claims abstract description 21
- 108010021466 Mutant Proteins Proteins 0.000 claims abstract description 21
- 235000018417 cysteine Nutrition 0.000 claims abstract description 19
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims abstract description 19
- 108700028369 Alleles Proteins 0.000 claims abstract description 18
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004471 Glycine Substances 0.000 claims abstract description 17
- 125000001493 tyrosinyl group Chemical group [H]OC1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])(N([H])[H])C(*)=O 0.000 claims abstract description 16
- 125000000151 cysteine group Chemical group N[C@@H](CS)C(=O)* 0.000 claims abstract description 15
- 230000035772 mutation Effects 0.000 claims abstract description 15
- 235000004279 alanine Nutrition 0.000 claims abstract description 13
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims abstract description 11
- 102100040347 TAR DNA-binding protein 43 Human genes 0.000 claims description 114
- 241000699666 Mus <mouse, genus> Species 0.000 claims description 63
- 241001465754 Metazoa Species 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 108090000623 proteins and genes Proteins 0.000 claims description 11
- 101000891092 Homo sapiens TAR DNA-binding protein 43 Proteins 0.000 claims description 8
- 108091029865 Exogenous DNA Proteins 0.000 claims description 6
- 241000282412 Homo Species 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 235000018102 proteins Nutrition 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108700026220 vif Genes Proteins 0.000 claims description 3
- 238000010172 mouse model Methods 0.000 claims description 2
- 208000024891 symptom Diseases 0.000 abstract description 9
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 241000699670 Mus sp. Species 0.000 description 90
- 210000004027 cell Anatomy 0.000 description 18
- 210000003000 inclusion body Anatomy 0.000 description 18
- 238000012360 testing method Methods 0.000 description 17
- 206010044565 Tremor Diseases 0.000 description 14
- 230000002159 abnormal effect Effects 0.000 description 14
- 210000003414 extremity Anatomy 0.000 description 13
- 239000013598 vector Substances 0.000 description 11
- 108020004414 DNA Proteins 0.000 description 9
- 230000005856 abnormality Effects 0.000 description 9
- 210000004556 brain Anatomy 0.000 description 9
- 239000002299 complementary DNA Substances 0.000 description 9
- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 8
- 241000545067 Venus Species 0.000 description 8
- 230000011514 reflex Effects 0.000 description 8
- 208000019901 Anxiety disease Diseases 0.000 description 6
- 230000036506 anxiety Effects 0.000 description 6
- 230000003542 behavioural effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 210000000805 cytoplasm Anatomy 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 102000004190 Enzymes Human genes 0.000 description 4
- 108090000790 Enzymes Proteins 0.000 description 4
- 241000700159 Rattus Species 0.000 description 4
- 230000037396 body weight Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 108091006047 fluorescent proteins Proteins 0.000 description 4
- 102000034287 fluorescent proteins Human genes 0.000 description 4
- 210000002569 neuron Anatomy 0.000 description 4
- 238000012346 open field test Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 208000000187 Abnormal Reflex Diseases 0.000 description 3
- 102000006479 Heterogeneous-Nuclear Ribonucleoproteins Human genes 0.000 description 3
- 108010019372 Heterogeneous-Nuclear Ribonucleoproteins Proteins 0.000 description 3
- 206010060860 Neurological symptom Diseases 0.000 description 3
- 230000006399 behavior Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000030833 cell death Effects 0.000 description 3
- 230000007850 degeneration Effects 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 208000035475 disorder Diseases 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 239000013604 expression vector Substances 0.000 description 3
- 210000001320 hippocampus Anatomy 0.000 description 3
- 230000003834 intracellular effect Effects 0.000 description 3
- 210000002161 motor neuron Anatomy 0.000 description 3
- 210000004940 nucleus Anatomy 0.000 description 3
- 230000001575 pathological effect Effects 0.000 description 3
- 210000003478 temporal lobe Anatomy 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000003936 working memory Effects 0.000 description 3
- 206010000171 Abnormal reflexes Diseases 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 2
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 2
- 102000015636 Oligopeptides Human genes 0.000 description 2
- 108010038807 Oligopeptides Proteins 0.000 description 2
- 210000004436 artificial bacterial chromosome Anatomy 0.000 description 2
- 210000004958 brain cell Anatomy 0.000 description 2
- 230000003925 brain function Effects 0.000 description 2
- 238000004520 electroporation Methods 0.000 description 2
- 238000002073 fluorescence micrograph Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000008098 formaldehyde solution Substances 0.000 description 2
- 210000001652 frontal lobe Anatomy 0.000 description 2
- 108020001507 fusion proteins Proteins 0.000 description 2
- 102000037865 fusion proteins Human genes 0.000 description 2
- 210000004602 germ cell Anatomy 0.000 description 2
- 230000000971 hippocampal effect Effects 0.000 description 2
- 230000006801 homologous recombination Effects 0.000 description 2
- 238000002744 homologous recombination Methods 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 108020004999 messenger RNA Proteins 0.000 description 2
- 238000002703 mutagenesis Methods 0.000 description 2
- 231100000350 mutagenesis Toxicity 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 239000013612 plasmid Substances 0.000 description 2
- 210000001778 pluripotent stem cell Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical compound C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 description 1
- 102000002260 Alkaline Phosphatase Human genes 0.000 description 1
- 108020004774 Alkaline Phosphatase Proteins 0.000 description 1
- 206010003694 Atrophy Diseases 0.000 description 1
- 241000255601 Drosophila melanogaster Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 101000693844 Homo sapiens Insulin-like growth factor-binding protein complex acid labile subunit Proteins 0.000 description 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 1
- 108060001084 Luciferase Proteins 0.000 description 1
- 239000005089 Luciferase Substances 0.000 description 1
- 206010061296 Motor dysfunction Diseases 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 108090000526 Papain Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 206010037211 Psychomotor hyperactivity Diseases 0.000 description 1
- 241000700157 Rattus norvegicus Species 0.000 description 1
- 206010038254 Reflexes abnormal Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 102000044159 Ubiquitin Human genes 0.000 description 1
- 108090000848 Ubiquitin Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001294 alanine derivatives Chemical class 0.000 description 1
- 125000003295 alanine group Chemical group N[C@@H](C)C(=O)* 0.000 description 1
- 230000006907 apoptotic process Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 102000005936 beta-Galactosidase Human genes 0.000 description 1
- 108010005774 beta-Galactosidase Proteins 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000287 crude extract Substances 0.000 description 1
- 210000004748 cultured cell Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 108010048367 enhanced green fluorescent protein Proteins 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 210000003194 forelimb Anatomy 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003198 gene knock in Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 102000055128 human TARDBP Human genes 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 238000010859 live-cell imaging Methods 0.000 description 1
- 241001515942 marmosets Species 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 230000004784 molecular pathogenesis Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000004770 neurodegeneration Effects 0.000 description 1
- 230000016273 neuron death Effects 0.000 description 1
- 230000007823 neuropathy Effects 0.000 description 1
- 201000001119 neuropathy Diseases 0.000 description 1
- 229940055729 papain Drugs 0.000 description 1
- 235000019834 papain Nutrition 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 208000033808 peripheral neuropathy Diseases 0.000 description 1
- 239000013600 plasmid vector Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000022532 regulation of transcription, DNA-dependent Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 210000003705 ribosome Anatomy 0.000 description 1
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 1
- 230000006886 spatial memory Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000037423 splicing regulation Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 125000000185 sucrose group Chemical group 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011830 transgenic mouse model Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 238000001262 western blot Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/027—New or modified breeds of vertebrates
- A01K67/0275—Genetically modified vertebrates, e.g. transgenic
- A01K67/0278—Knock-in vertebrates, e.g. humanised vertebrates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2207/00—Modified animals
- A01K2207/15—Humanized animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2217/00—Genetically modified animals
- A01K2217/07—Animals genetically altered by homologous recombination
- A01K2217/072—Animals genetically altered by homologous recombination maintaining or altering function, i.e. knock in
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2217/00—Genetically modified animals
- A01K2217/15—Animals comprising multiple alterations of the genome, by transgenesis or homologous recombination, e.g. obtained by cross-breeding
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2227/00—Animals characterised by species
- A01K2227/10—Mammal
- A01K2227/105—Murine
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2267/00—Animals characterised by purpose
- A01K2267/03—Animal model, e.g. for test or diseases
- A01K2267/0306—Animal model for genetic diseases
- A01K2267/0318—Animal model for neurodegenerative disease, e.g. non- Alzheimer's
Definitions
- the present invention relates to a model mouse of amyotrophic lateral sclerosis and / or frontotemporal lobar degeneration.
- TDP-43 is a heterogeneous nuclear ribonucleoprotein (hnRNP) that binds to mRNA and other hnRNPs, stabilizes mRNA, and selectively selects hnRNA. Involved in splicing and transcriptional regulation. Recently, it was revealed that TDP-43 is a component of ubiquitin-positive inclusions that appear in degenerative sites of frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS) (M Neumann et al. 2006 vol.314 p.130-133). Later, a number of TDP-43 mutations were identified as a pathogenic gene for familial ALS (J. Sreedharan et al. 2008 vol.319 p.1668-1672; E.Lee wt al. 2012 vol.13 p. 38-50).
- FTLD frontotemporal lobar degeneration
- ALS amyotrophic lateral sclerosis
- a mutant TDP-43 transgenic mouse, a mutant TDP-43 (Q343R) knock-in mouse, and the like were created as model mice for ALS using TDP-43, imitating the mutations identified in humans.
- Scientific Research Fund 2009 Research Results Report “Amyotrophic Lateral Sclerosis and TDP-43: Elucidation of the Pathology and Molecular Pathology” (Research Project No. 20240037, Representative: Hitoshi Takahashi)).
- neurological symptoms similar to those of FTLD and ALS did not appear, and abnormal intracellular inclusion bodies that cause neuronal cell death were not detected.
- Rhizosclerosis and TDP-43 Elucidation of the pathological picture and molecular pathogenesis "(Research Project No. 20240037, Representative: Hitoshi Takahashi)).
- the present invention was made for the purpose of producing a model mouse having symptoms similar to those of human amyotrophic lateral sclerosis and / or human frontotemporal lobar degeneration.
- One embodiment of the present invention is a mutant protein (SEQ ID NO: 2) in which at least one allele of the endogenous TDP-43 gene is substituted with tyrosine at the amino acid corresponding to position 382 of SEQ ID NO: 1, or SEQ ID NO: 1 is a vertebrate (except for humans) in which the expression of a mutant protein (SEQ ID NO: 3) in which the amino acid glycine corresponding to position 348 is replaced with cysteine is controlled by the endogenous TDP-43 gene promoter .
- the vertebrate has a mutation in which at least one allele of the endogenous TDP-43 gene is substituted by tyrosine with an alanine of amino acid corresponding to position 382 of SEQ ID NO: 1 by exogenous DNA, or position 348 of SEQ ID NO: 1. It may have a mutation in which the corresponding amino acid glycine is replaced with cysteine.
- the vertebrate may be an amyotrophic lateral sclerosis model animal, a frontotemporal lobar degeneration model animal, or a human TDP-43 gene knock-in mouse.
- a further embodiment of the present invention is a method for producing a frontotemporal lobar degeneration model animal or amyotrophic lateral sclerosis model animal, wherein the endogenous TDP-43 of a vertebrate (but excluding humans) is used.
- Mutant protein in which the alanine of the amino acid corresponding to position 382 of SEQ ID NO: 1 is substituted with tyrosine or the glycine of the amino acid corresponding to position 348 of SEQ ID NO: 1 is replaced with cysteine in at least one allele of the gene Mutating the vertebrate such that expression of is controlled by the endogenous TDP-43 gene promoter.
- the vertebrate may be mutated by substituting cysteine for the amino acid corresponding to position 348 of 1 with cysteine.
- the endogenous TDP-43 gene of the vertebrate or a part thereof may be replaced with an exogenous human TDP-43 gene or a part thereof.
- Example by this invention it is various observation images of the abnormal inclusion body which arises when mutant type TDP-43 (G348C) is transiently expressed in HeLa cells.
- images of apoptosis observed when mutant TDP-43 (G348C) is transiently expressed in HeLa cells are shown in time series.
- the fluorescent signal from Venus is shining white.
- an abnormal inclusion body is observed in the cytoplasm of the nerve cell in the center.
- the construction of the mutant TDP-43 knock-in vector (Targeting vector), the construction of the endogenous TDP-43 gene before knock-in (Tardbp genome), and the construction of the endogenous TDP-43 gene after knock-in Indicates.
- the data shows the expression of wild type or mutant TDP-43 in the central nerve of wild type mice and mutant type TDP-43 knock-in mice.
- ⁇ G> represents a mutant TDP-43 (G348C) knock-in mouse
- ⁇ A> represents a mutant TDP-43 (A382T) knock-in mouse.
- the weights of wild-type mice and mutant TDP-43 knock-in mice were measured up to 14 months of age, and the graph shows the transition of the average weight.
- it is the figure which showed the behavioral abnormality by the disorder
- a behavioral abnormality (limb reflex and tremor) of a mutant TDP-43 knock-in mouse was evaluated in five stages, and a wild type mouse was evaluated along with a time course for each individual. is there.
- ⁇ G> represents a mutant TDP-43 (G348C) knock-in mouse
- ⁇ A> represents a mutant TDP-43 (A382T) knock-in mouse.
- behavioral abnormalities tremor, grip strength and limb reflex
- FIG. ⁇ G> represents a mutant TDP-43 (G348C) knock-in mouse
- ⁇ A> represents a mutant TDP-43 (A382T) knock-in mouse.
- x indicates that it could not be measured because it died.
- an electromyogram in which a time extension of MUP (Moter unit potential) was observed as a result of measuring an electromyogram of a mutant TDP-43 (G348C) knock-in mouse at 4 months of age (A ), An abnormal electromyogram (B), and an electromyogram (C) in which MUP is completed within a normal time.
- MUP Mobile unit potential
- Example by this invention it is a figure which shows transition of the action amount to the horizontal direction of a knock-in mouse ( ⁇ ) and a wild type mouse ( ⁇ ) in a home cage activity test. In one Example by this invention, it is a figure which shows the time staying in the wall side of the knock-in mouse (right bar) and the wild type mouse (left bar), and the time staying in a center range in an open field test. In one Example by this invention, it is a figure which shows the time to stay near the novel thing of a knock-in mouse (right bar) and a wild type mouse (left bar) in a novel object recognition test.
- knock-in mice in a three-chamber test, knock-in mice (right bar) and wild-type mice (left bar) stayed in a room with other mice (stranger-near), and other mice It is a figure which shows the time (empty-near) which stayed in the room which does not exist.
- the time to finish eating all eight arms of knock-in mice ( ⁇ ) and wild-type mice ( ⁇ ) It is a figure which shows the frequency
- the expression of the mutant protein in which the amino acid corresponding to position 382 of Alanine is substituted with tyrosine or the mutant protein in which the amino acid glycine corresponding to position 348 of SEQ ID NO: 1 is replaced with cysteine is expressed by the endogenous TDP-43 gene promoter. Mutating the vertebrate as controlled by.
- the TDP-43 gene is a gene that has been identified in humans (Gene ID: 23435), mice (Gene ID: ⁇ 230908), Drosophila melanogaster (Gene ID: 37781), and is widely present in vertebrates. Therefore, the vertebrate to be used is not particularly limited, but is preferably a non-human primate or rodent, and particularly preferably a marmoset, mouse or rat.
- the amino acid corresponding to position 382 of SEQ ID NO: 1 is alanine
- the amino acid corresponding to position 348 of SEQ ID NO: 1 is glycine.
- amino acid corresponding to position 382 of SEQ ID NO: 1 does not necessarily have to be position 382 in the vertebrate, and corresponds to position 382 of SEQ ID NO: 1, that is, around the 382rd position of SEQ ID NO: 1.
- amino acid sequences that are homologous to the amino acid sequence any amino acid corresponding to position 382 of SEQ ID NO: 1 may be used. The same applies to the amino acid corresponding to position 348 of SEQ ID NO: 1.
- a vertebrate is given a mutation source, and from among a large number of mutants, Individuals may be selected in which alanine or glycine is mutated to tyrosine or cysteine, respectively. However, using reverse DNAs, this alanine or glycine may be replaced with tyrosine or cysteine, respectively, using exogenous DNA. .
- substituting amino acids the expression of the mutant protein is controlled by the endogenous TDP-43 gene promoter, and there may be other insertions of foreign DNA as long as the effect of the mutant protein is produced.
- An example of an amino acid substitution method is shown below, but the substitution method is not limited to this example.
- the amino acid alanine corresponding to position 382 of SEQ ID NO: 1 is substituted with tyrosine, or the 348th position of SEQ ID NO: 1
- the amino acid glycine corresponding to is substituted with cysteine.
- DNA encoding the tag is bound in an in frame to express a fusion protein with mutant TDP-43.
- an IRES sequence internal ribosomal entry site
- the origin of the TDP-43 gene or cDNA is not particularly limited, but is preferably a vertebrate TDP-43 gene or cDNA, more preferably a human TDP-43 gene or cDNA.
- the tag is not particularly limited, and examples thereof include oligopeptides such as His tag and Myc tag, fluorescent proteins such as GFP and EGFP, enzymes such as ⁇ -galactosidase, luciferase, and alkaline phosphatase.
- an oligopeptide or a fluorescent protein is preferable, and when an IRES sequence is used, a fluorescent protein or an enzyme protein is preferable.
- the knock-in DNA thus prepared is introduced into pluripotent stem cells such as ES cells and iPS cells, and cells in which the knock-in DNA is replaced with the endogenous TDP-43 gene are selected.
- pluripotent stem cells such as ES cells and iPS cells
- cells in which the knock-in DNA is replaced with the endogenous TDP-43 gene are selected.
- a mutant protein in which the alanine of amino acid corresponding to position 382 of SEQ ID NO: 1 is substituted with tyrosine, or the amino acid corresponding to position 348 of SEQ ID NO: 1
- Expression of mutant proteins in which glycine is replaced with cysteine is controlled by the endogenous TDP-43 gene promoter.
- knock-in animals can be produced by injecting DNA for knock-in into fertilized eggs, selecting individuals in which the endogenous TDP-43 gene has been replaced, and raising the selected individuals to adulthood.
- These knock-in animals are heterozygous for the mutated TDP-43 gene, but since the introduced mutation is a dominant mutation, these heterozygotes are referred to as amyotrophic lateral sclerosis and / or frontotemporal lobar degeneration. It can be used as a model animal for illness. Homozygotes can also be obtained by mating male and female heterozygotes.
- a vertebrate produced by the above-described method is a mutant protein in which at least one allele of the endogenous TDP-43 gene is substituted with tyrosine at the amino acid alanine corresponding to position 382 of SEQ ID NO: 1, or Expression of the mutant protein in which the amino acid glycine corresponding to position 348 is replaced with cysteine is controlled by the endogenous TDP-43 gene promoter.
- This mutant vertebrate is a mutation in which at least one allele of the endogenous TDP-43 gene is substituted with tyrosine for the amino acid corresponding to position 382 of SEQ ID NO: 1 by exogenous DNA, or position 348 of SEQ ID NO: 1. It may also be a vertebrate having a mutation in which the amino acid glycine corresponding to is substituted with cysteine. In the mutant vertebrate, foreign DNA may be inserted as long as the expression of the mutant protein is controlled by the endogenous TDP-43 gene promoter and the effect of the mutant protein is produced.
- the mutant vertebrate may be heterozygous in which substitution has occurred in one allele of the endogenous TDP-43 gene, or may be homozygous in which substitution has occurred in both alleles.
- endogenous TDP-43 gene is preferably replaced with an exogenous human TDP-43 gene.
- This mutant vertebrate exhibits abnormal neurological symptoms such as tremor and abnormal limb reflex after birth. In addition, the gripping force is reduced, and it is difficult to grasp the object. In the central nerve cells of the spinal cord and brain, abnormal inclusion bodies of TDP-43 are produced. Thus, since the vertebrate manifests symptoms peculiar to amyotrophic lateral sclerosis, it is useful as a model animal for amyotrophic lateral sclerosis.
- TDP-43 cDNA Human cDNA clone, FCC-101, TOYOBO Co., LTD.
- SEQ ID NO: 9 was inserted into the HindIII and BamHI sites of the pBluescriptSK (+) plasmid vector.
- a mutant TDP-43 cDNA (G298S, A315T, G348C, N352S, A382T) was prepared by in vitro mutagenesis method (Nuc. Acids Res. 2000 vol. 28 E78).
- G298S primer attgtttcccaaactagctccaccccc (SEQ ID NO: 4)
- A315T primer attaatgctgaacgtaccaaagttc (SEQ ID NO: 5)
- G348C primer attacccgatgggcatgactggttc (SEQ ID NO: 6)
- N352S primer ttggttttggttactacccgattggcc (SEQ ID NO: 7)
- A382T primer tccccaaccaattgttgcaccagaatt (SEQ ID NO: 8)
- the mutant TDP-43 cDNA cleaved with the same enzyme was inserted into the HindIII and KpnI sites of Venus / pcDNA3 (plasmid in which Venus was inserted into the BamHI and EcoRI sites of the pcDNA3 vector).
- FIG. 1 shows various inclusion bodies observed with mutant TDP-43 in HeLa cells.
- A) to (C) are inclusion bodies produced in the cytoplasm, which are relatively small diffused (A), medium lumps (B), and relatively large lumps It is an example of thing (C).
- D) is an inclusion body produced in the nucleus.
- the effect of mutant TDP-43 was similarly observed using rat brain neurons.
- Wistar Rat on the 19th day of pregnancy was anesthetized after cervical dislocation, the brain was collected from the fetus taken out by laparotomy, and the hippocampus was cut out under a stereomicroscope. The collected hippocampus was immersed in PBS containing enzymes (Papain and DnaseI) at 37 ° C. for 10 minutes, and cells of hippocampal tissue were dispersed with a glass pipette. Cells collected from the hippocampus were cultured in an imaging dish having a diameter of 35 mm. The medium used here was 2% FBS / MEM with N2 and B27 added.
- the mutant TDP-43 expression vector was transfected into rat hippocampal cultured cells by the calcium phosphate method, and as shown in FIG. 3, formation of abnormal inclusion bodies was also observed in the cells.
- a DNA fragment amplified by PCR and a BAC (bacterial-artificial-chromosome) vector into which a wild-type TDP-43 gene has been inserted are introduced into Escherichia coli by electroporation to induce homologous recombination
- the knock-in vector was completed.
- FIG. 4 shows the structure of the knock-in vector, the structure of the endogenous TDP-43 gene before knock-in, and the structure of the endogenous TDP-43 gene after knock-in.
- a chimeric mouse was prepared, a germline chimeric mouse was selected, and a mutant TDP-43 knock-in mouse was obtained from its offspring.
- mutant type TDP-43 (A382T) knock-in mice signals indicating the expression of wild type TDP-43 and mutant type TDP-43 were detected.
- the expression level of wild-type TDP-43 in wild-type mice was almost the same as the total expression level of wild-type TDP-43 and mutant TDP-43 in mutant mice.
- the mutant TDP-43 (A382T) knock-in mouse in addition to these signals, a signal with a small molecular weight was also detected weakly. In general, however, it is considered that the mutant protein is easily degraded. It is considered that mutant TDP-43 (A382T) was partially degraded.
- mutant TDP-43 knock-in mice Wild-type mice (7 males, 9 females), mutant TDP-43 (G348C) knock-in mice (6 males, 3 females), mutant TDP- For 43 (A382T) knock-in mice (4 males, 5 females), the body weight was measured immediately after birth until 14 months after birth, the average body weight was calculated, and the transition of the average body weight was graphed ( FIG. 6). As shown in FIG. 6, both knock-in mice gained weight more slowly than the wild type, and were significantly lighter than the wild type mice even after 14 months.
- mutant TDP-43 knock-in mice Behavioral analysis of mutant TDP-43 knock-in mice When wild mice and mutant TDP-43 knock-in mice were observed for the behavior of the mice in the cage, the wild-type mice were free to grab the cage net. Both of the mutant TDP-43 knock-in mice move around in the cage, but their grip strength is low, and even if they hold the cage net, they cannot support their own weight. It was slow. This abnormality is thought to be due to a failure of the lower motor neuron.
- mice when the mice were observed to move freely in the cage for 1-2 minutes and examined whether tremor occurred, they were not observed in 16 wild-type mice, but in mutant mice TDP-43 (G348C) knock-in mice produced 8 out of 10 mice, and mutant TDP-43 (A382T) knock-in mice produced 7 out of 9 mice.
- limb reflexes and tremors were scored and evaluated every 5 years from 6 months to 10 months (0 to 4: the number of limbs with abnormal reflexes and tremors were left as is. Scored). Then, for each individual, the evaluation was made as a graph over time (FIG. 8). From FIG. 8, it can be seen that the tremor of the mutant mice gradually deteriorated from 6 months to 10 months after birth. In addition, abnormalities of limb reflexes were already observed in many mutant mice 6 months after birth.
- mutant TDP-43 (G348C) knock-in mice and mutant TDP-43 (A382T) knock-in mice were every 15 weeks from 33 weeks to 78 weeks after birth. Evaluation was performed.
- tremors “0” was used when tremors were observed, and “1” when tremors were not observed.
- the grip strength “0” is available when the four limbs can be hung on the cage net, “1” when the four limbs can be hung on the cage net, but it falls immediately. If the forelimb of the book can hold the cage net but cannot hang on the cage net with four limbs, it is “2”. .
- limb reflexes the number of limbs with abnormal reflexes or tremors was used as the score. Then, for each individual, the evaluation of tremor, grip strength, and limb reflex was shown in the figure over time (FIG. 9).
- the mutant mouse is useful as an ALS model animal because it has an abnormality similar to ALS.
- FIG. 10A shows an electromyogram when the MUP is completed within the normal time.
- FIG. 10B shows an electromyogram when the MUP is completed within the normal time.
- mutant TDP-43 knock-in mice Five months old mutant TDP-43 knock-in mice were reflux fixed with 4% formaldehyde solution, brains were collected, and again overnight with 4% formaldehyde solution. After fixation, it was replaced with Sucrose. Thereafter, a frozen section having a thickness of 30 micrometers was prepared by a retotome. In this section, a fluorescence image from Venus was observed with a fluorescence microscope. As shown in FIG. 11, mutant TDP-43 formed inclusion bodies in the cytoplasm in addition to being localized in the nucleus. Thus, the mutant TDP-43 knock-in mouse is useful as an ALS model animal showing symptoms similar to human ALS and an FTLD model animal showing symptoms similar to human FTLD.
- the behavioral analysis device (limited company) of 12 mutant TDP-43 (A382T) knock-in mice and 11 wild-type mice until 360 minutes passed immediately after returning to the home gauge. (Merquest, SCANET). The number of times the mouse shielded the infrared rays inside the device (count number) was counted every 30 minutes. The results are shown in FIG. 12 ( ⁇ mutant mouse; ⁇ wild-type mouse).
- mutant TDP-43 (A382T) knock-in mice are slower to adapt to the environment than wild-type mice.
- mice The mouse was placed in a 50 cm ⁇ 50 cm field, and the time spent staying on the wall side and the time spent staying in the center range (18 cm ⁇ 18 cm) of the field were measured.
- 11 mutant TDP-43 (G348C) knock-in mice and 11 wild-type mice were used. The results are shown in FIG. 13 (left bar wild type mouse; right bar mutant mouse).
- mutant TDP-43 (G348C) knock-in mouse spent significantly longer in the central region than the wild type.
- mutant TDP-43 (G348C) knock-in mice have a low degree of anxiety and tend not to feel anxiety in a new environment.
- the mutant TDP-43 (A382T) knock-in mouse showed the same tendency when the open field test was conducted.
- ⁇ Mouse was put in the device where the object as a novel object was installed, and the time spent staying near the object was measured.
- 11 mutant TDP-43 (G348C) knock-in mice, 12 mutant TDP-43 (A348T) knock-in mice, and 11 wild-type mice were used. The results are shown in FIG. 14 (left bar wild type mouse; right bar mutant mouse).
- both the mutant TDP-43 (G348C) knock-in mouse and the mutant TDP-43 (A348T) knock-in mouse have a lower degree of anxiety and are less likely to feel anxiety than the wild type. .
- mutant TDP-43 (A348T) knock-in mice A similar evaluation was performed on mutant TDP-43 (A348T) knock-in mice, and the time spent in a room with mice that had never lived so far tended to be shorter than in wild-type mice. This indicates that the sociality of mutant TDP-43 knock-in mice tends to be lower than that of wild-type mice.
- a device having eight arms extending radially was prepared, food was placed at the tip of each arm, and a mouse was placed in the device. Then, the time required to finish eating all eight arms, the number of times of intrusion into the arm that had already eaten food (number of working memory errors), and the total number of times of intrusion into the arm were measured. This test was repeated for 14 days. For the test, 11 mutant TDP-43 (G348C) knock-in mice and 11 wild-type mice were used. The results are shown in FIG. 16 ( ⁇ mutant mouse; ⁇ wild-type mouse).
- mutant TDP-43 knock-in mice after 5 months of age have higher-order dysfunctions that are considered to reflect human FTLD, and were found to be useful as FTLD model animals.
- a model mouse having symptoms similar to human amyotrophic lateral sclerosis and / or human frontotemporal lobar degeneration can be produced.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Peptides Or Proteins (AREA)
Abstract
Description
本出願は、2012年5月31日付で出願した日本国特許出願2012-124947、及び2012年7月30日付で出願した日本国特許出願2012-168001に基づく優先権を主張するものであり、当該基礎出願を引用することにより、本明細書に含めるものとする。
筋萎縮性側索硬化症および/または前頭側頭葉変性症と同様な症状を有するモデル動物を作製する方法には、脊椎動物の内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換された変異タンパク質、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換された変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御されるように、前記脊椎動物に変異を起こさせる工程を含む。
上述した方法によって作製された脊椎動物は、内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換された変異タンパク質、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換された変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御されている。この変異脊椎動物は、内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、外来性DNAによって、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換した変異、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換した変異を有する脊椎動物であってもよい。なお、変異脊椎動物は、変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御され、その変異タンパク質の効果が生じる限り、他に外来DNAの挿入等があっても良い。
TDP-43cDNA(Human cDNA clone, FCC-101, TOYOBO Co.,LTD.)(配列番号9)をpBluescriptSK(+)プラスミドベクターのHindIII及びBamHI部位に挿入したプラスミドを用い、下記プライマーを用い、in vitro mutagenesis法(Nuc. Acids Res. 2000 vol.28 E78)によって変異型TDP-43cDNA(G298S、A315T、G348C、N352S、A382T)を作製した。
G298Sプライマー: attgtttcccaaactagctccaccccc(配列番号4)
A315Tプライマー: attaatgctgaacgtaccaaagttc(配列番号5)
G348Cプライマー: attacccgatgggcatgactggttc (配列番号6)
N352Sプライマー: ttggttttggttactacccgattggcc(配列番号7)
A382Tプライマー: tccccaaccaattgttgcaccagaatt(配列番号8)
次に、Venus/pcDNA3 (VenusがpcDNA3ベクターのBamHIとEcoRI部位に挿入されているプラスミド)のHindIII及びKpnI部位へ、同じ酵素で切断した変異型TDP-43cDNAを挿入した。このようにして、変異型TDP-43に蛍光蛋白質Venusを融合させた発現ベクターを作製した。
HeLa細胞に、変異型TDP-43発現ベクターをLipofectamin2000を用いてリポフェクションし、24時間後に共焦点蛍光顕微鏡でVenusの蛍光を観察したところ、細胞質にVenusを含む封入体を持つ細胞の頻度は、変異型TDP-43(G348C)及び変異型TDP-43(A382T)が最も高く、一方、野生型TDP-43の強制発現では封入体は少数しか見られなかった。そこで、変異型TDP-43ノックインマウスを作製するのに、これらの変異型を用いた。なお、以下のいずれの実験でも、変異型TDP-43(G348C)及び変異型TDP-43(A382T)について、同様の実験結果が得られたが、本明細書では、一例として、変異型TDP-43(G348C)で得られた結果を記載する。
まず、pBluescriptベクターのXhoI HindIIIの間にNeoカセットが挿入されたベクターをApaI及びXhoIで切断し、変異型TDP-43の発現ベクターから、ApaI及びXhoIで切り出した変異型TDP-Venus-polyAを挿入し、TDP43-Venus-polyA-Neoカセット/pBstSKを作製した。
野生型マウス(雄7匹、雌9匹)、変異型TDP-43(G348C)ノックインマウス(雄6匹、雌3匹)、変異型TDP-43(A382T)ノックインマウス(雄4匹、雌5匹)について、生後すぐから、生後14ヶ月に至るまで、体重を測定し、その平均体重を算出し、その平均体重の推移をグラフ化した(図6)。
図6で示すように、両方のノックインマウスは、野生型に比べて体重の増加が遅く、14ヶ月後でも、野生型マウスより、有意に体重が軽かった。
野生型マウスと変異型TDP-43ノックインマウスに対し、ケージ中のマウスの行動を観察すると、野生型マウスは、ケージの網を掴みながら自由にケージ内を動きまわるが、変異型TDP-43ノックインマウスは、両方とも、握力が低下しており、ケージの網を掴んでも、自分自身の体重を支えきれないことから、ケージ内での動きが緩慢になっていた。なお、この異常は、下位運動ニューロンの障害によると考えられる。
生後4カ月の変異型TDP-43(G348C)ノックインマウスにおいて、筋電図を測定し、その結果を図10に示した。
変異ノックインマウスでは、motor unit potential(MUP)が基線に戻るまでの時間が異常に延長したり(図10A)、下位運動神経の障害で起こるfibrilation potentialと見られる微弱な異常波形が出現したり(図10B)した。なお、比較のため、MUPが正常時間内に終了した時の筋電図を図10Cに示した。
このように、変異型TDP-43(G348C)ノックインマウスでは、運動神経障害が、筋電図波形にも現れた。
(7)変異型TDP-43ノックインマウスの脳細胞の解析
生後5ヶ月の変異型TDP-43ノックインマウスを4%ホルムアルデヒド溶液で還流固定後、脳を採取し、再度、4%ホルムアルデヒド溶液で1晩固定後、Sucroseに置換した。その後、リトラトームで厚さ30マイクロメートルの凍結切片を作製した。
この切片において、Venusからの蛍光像を蛍光顕微鏡で観察したところ、図11に示すように、変異型TDP-43は、核に局在する他に、細胞質に封入体を形成した。
このように、変異型TDP-43ノックインマウスは、ヒトALSと同様の症状を示すALSモデル動物およびヒトFTLDと同様の症状を示すFTLDモデル動物として有用である。
以下のように、生後5ヶ月から9ヶ月の変異型TDP-43のノックインマウスの高次脳機能解析を行った。
まず、変異型TDP-43(A382T)ノックインマウスを用いてホームケージ活動性試験を行い、このマウスの環境への適応性を評価した。
次に、オープンフィールド試験を行い、変異型TDP-43ノックインマウスの新規環境に対する不安耐性を評価した。
次に、新奇物体認識試験を行い、変異型TDP-43ノックインマウスの新奇物に対する不安耐性についての評価を行った。
次に、3チャンバー試験を行い、変異型TDP-43ノックインマウスの社会性を評価をした。
次に、8方向放射状迷路試験を行い、変異型TDP-43ノックインマウスの空間記憶を評価した。
Claims (11)
- 内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換された変異タンパク質、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換された変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御されている脊椎動物(ただし、ヒトを除く)。
- 内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、外来性DNAによって、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換した変異、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換した変異を有する、請求項1に記載の脊椎動物。
- 筋萎縮性側索硬化症モデル動物である、請求項1または2に記載の脊椎動物。
- 前頭側頭葉変性症モデル動物である、請求項1または2に記載の脊椎動物。
- ヒトTDP-43遺伝子のノックインマウスである、請求項1~4のいずれか1項に記載の脊椎動物。
- 筋萎縮性側索硬化症モデル動物を作製する方法であって、
脊椎動物(ただし、ヒトを除く)の内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換された変異タンパク質、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換された変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御されるように、前記脊椎動物に変異を起こさせる工程を含む方法。 - 前記脊椎動物の内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、外来性DNAを用いて、配列番号1の382番目に対応するアミノ酸のアラニンをチロシンに置換する工程、または配列番号1の348番目に対応するアミノ酸のグリシンをシステインに置換する工程、によって、前記脊椎動物に変異を起こさせることを特徴とする、請求項6に記載の方法。
- 前記脊椎動物の内在性TDP-43遺伝子又はその一部を、外来性ヒトTDP-43遺伝子又はその一部と置換することを特徴とする、請求項7に記載の方法。
- 前頭側頭葉変性症モデルマウスを作製する方法であって、
脊椎動物(ただし、ヒトを除く)の内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、配列番号1の382番目に対応するアミノ酸のアラニンがチロシンに置換された変異タンパク質、または配列番号1の348番目に対応するアミノ酸のグリシンがシステインに置換された変異タンパク質の発現が、内在性TDP-43遺伝子プロモーターによって制御されるように、前記脊椎動物に変異を起こさせる工程を含む方法。 - 前記脊椎動物の内在性TDP-43遺伝子の少なくとも一方のアレルにおいて、外来性DNAを用いて、配列番号1の382番目に対応するアミノ酸のアラニンをチロシンに置換する工程、または配列番号1の348番目に対応するアミノ酸のグリシンをシステインに置換する工程、によって、前記脊椎動物に変異を起こさせることを特徴とする、請求項9に記載の方法。
- 前記脊椎動物の内在性TDP-43遺伝子又はその一部を、外来性ヒトTDP-43遺伝子又はその一部と置換することを特徴とする、請求項10に記載の方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13796611.5A EP2856869A4 (en) | 2012-05-31 | 2013-05-30 | WALL MODEL OF AMYOTROPHIC LATERAL SCLEROSIS AND / OR FRONTO-TEMPORAL DEGENERATION |
US14/404,570 US20150173330A1 (en) | 2012-05-31 | 2013-05-30 | Mouse model of amyotrophic lateral sclerosis and/or frontotemporal lobar degeneration |
JP2014518720A JP6366188B2 (ja) | 2012-05-31 | 2013-05-30 | 筋萎縮性側索硬化症および/または前頭側頭葉変性症のモデルマウス |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012124947 | 2012-05-31 | ||
JP2012-124947 | 2012-05-31 | ||
JP2012-168001 | 2012-07-30 | ||
JP2012168001 | 2012-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013180214A1 true WO2013180214A1 (ja) | 2013-12-05 |
Family
ID=49673401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/065029 WO2013180214A1 (ja) | 2012-05-31 | 2013-05-30 | 筋萎縮性側索硬化症および/または前頭側頭葉変性症のモデルマウス |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150173330A1 (ja) |
EP (1) | EP2856869A4 (ja) |
JP (1) | JP6366188B2 (ja) |
WO (1) | WO2013180214A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017197443A (ja) * | 2016-04-25 | 2017-11-02 | 国立研究開発法人国立精神・神経医療研究センター | Tdp−43プロテイノパチー治療用組成物 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220024134A (ko) * | 2019-06-27 | 2022-03-03 | 리제너론 파마슈티칼스 인코포레이티드 | Tdp-43 단백질이상질환 모델링 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2327788A1 (en) * | 2009-11-25 | 2011-06-01 | Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH) | Conditional expression of transgenes in vivo |
-
2013
- 2013-05-30 JP JP2014518720A patent/JP6366188B2/ja not_active Expired - Fee Related
- 2013-05-30 EP EP13796611.5A patent/EP2856869A4/en not_active Withdrawn
- 2013-05-30 WO PCT/JP2013/065029 patent/WO2013180214A1/ja active Application Filing
- 2013-05-30 US US14/404,570 patent/US20150173330A1/en not_active Abandoned
Non-Patent Citations (7)
Title |
---|
"Current Protocols in Molecular Biology", JOHN WILEY & SONS LTD. |
"Molecular cloning, a laboratory manual", 2012, COLD SPRING HARBOR PRESS |
HITOSHI TAKAHASHI: "Amytrophic latheral sclerosis and TDP-43: elucidation of the entire neuropathological picture and molecular pathomechanism", KAGAKU KENKYUHI HOJOKIN KENKYU SEIKA HOKOKUSHO, 2011, XP055180083, Retrieved from the Internet <URL:http://kaken.nii.ac.jp/pdf/2010/seika/jsps/13101/20240037seika.pdf> [retrieved on 20130611] * |
KOJI YAMANAKA: "Glial pathology in amyotrophic lateral sclerosis", NEUROLOGY RESEARCH INTERNATIONAL, vol. 2011, no. 718987, 2011, pages 1192 - 1194, XP055180075 * |
MAKOTO URUSHITANI: "Future perspectives of immunotherapy against ALS", CLINICAL NEUROLOGY, vol. 4, no. 11, 2009, pages 818 - 820, XP055180064 * |
NUC. ACIDS RES., vol. 28, 2000, pages E78 |
TAKUYA KONNO ET AL.: "ALSIO (Idensei ALS-TDP) no Rinsho to Byori", CLINICAL NEUROSCIENCE, vol. 29, no. 9, 1 September 2011 (2011-09-01), pages 1019 - 1021, XP008176047 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017197443A (ja) * | 2016-04-25 | 2017-11-02 | 国立研究開発法人国立精神・神経医療研究センター | Tdp−43プロテイノパチー治療用組成物 |
Also Published As
Publication number | Publication date |
---|---|
EP2856869A4 (en) | 2016-02-17 |
JP6366188B2 (ja) | 2018-08-01 |
US20150173330A1 (en) | 2015-06-25 |
EP2856869A1 (en) | 2015-04-08 |
JPWO2013180214A1 (ja) | 2016-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Gilley et al. | Rescue of peripheral and CNS axon defects in mice lacking NMNAT2 | |
Lopez et al. | Anatomically defined neuron-based rescue of neurodegenerative Niemann–Pick type C disorder | |
Puckelwartz et al. | Disruption of nesprin-1 produces an Emery Dreifuss muscular dystrophy-like phenotype in mice | |
Speed et al. | Autism-associated insertion mutation (InsG) of Shank3 exon 21 causes impaired synaptic transmission and behavioral deficits | |
Hudry et al. | Inhibition of the NFAT pathway alleviates amyloid beta neurotoxicity in a mouse model of Alzheimer's disease | |
JP7026678B2 (ja) | C9orf72座位中にヘキサヌクレオチドリピート伸長を有する非ヒト動物 | |
Ruehle et al. | Cannabinoid CB1 receptor in dorsal telencephalic glutamatergic neurons: distinctive sufficiency for hippocampus-dependent and amygdala-dependent synaptic and behavioral functions | |
McDowell et al. | Reduced cortical BDNF expression and aberrant memory in Carf knock-out mice | |
Khelfaoui et al. | Loss of X-linked mental retardation gene oligophrenin1 in mice impairs spatial memory and leads to ventricular enlargement and dendritic spine immaturity | |
Sperber et al. | A unique role for Fyn in CNS myelination | |
Bi et al. | Inactivation of Rai1 in mice recapitulates phenotypes observed in chromosome engineered mouse models for Smith–Magenis syndrome | |
Danglot et al. | Absence of TI-VAMP/Vamp7 leads to increased anxiety in mice | |
Zhang et al. | Fuz regulates craniofacial development through tissue specific responses to signaling factors | |
Shen et al. | Targeted disruption of Tgif, the mouse ortholog of a human holoprosencephaly gene, does not result in holoprosencephaly in mice | |
Volders et al. | Drosophila rugose is a functional homolog of mammalian Neurobeachin and affects synaptic architecture, brain morphology, and associative learning | |
Pelletier et al. | An early onset progressive motor neuron disorder in Scyl1-deficient mice is associated with mislocalization of TDP-43 | |
US20160345547A1 (en) | Non-human animals having a disruption in a c9orf72 locus | |
Sudo et al. | Temporal requirement of dystroglycan glycosylation during brain development and rescue of severe cortical dysplasia via gene delivery in the fetal stage | |
Qian et al. | Stage specific requirement of platelet-derived growth factor receptor-α in embryonic development | |
JP2020005660A (ja) | 上位及び下位運動ニューロン機能並びに知覚の減衰を示す非ヒト動物 | |
JP6366188B2 (ja) | 筋萎縮性側索硬化症および/または前頭側頭葉変性症のモデルマウス | |
EP3158084A2 (en) | Compositions and methods for modulating neuronal degeneration | |
US20080120731A1 (en) | Transgenic Animal Models for Neurodevelopmental Disorders | |
Hao et al. | The Nesprin-1/-2 ortholog ANC-1 regulates organelle positioning in C. elegans without its KASH or actin-binding domains | |
Yang et al. | A giant ankyrin-B mechanism for neuro-diversity/divergence through stochastic ectopic axon projections |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13796611 Country of ref document: EP Kind code of ref document: A1 |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2014518720 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013796611 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14404570 Country of ref document: US |