Method of screening PTPζ activity promoter or inhibitor

Multicellular living organisms and unmodified parts thereof and – Method of using a transgenic nonhuman animal in an in vivo...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C800S018000, C800S009000

Reexamination Certificate

active

10333786

ABSTRACT:
An object of the present invention is to provide a remedy for dysfunction of central monoamine pathway, a method for screening a PTPζ inhibitor or activator, and a non-human model animal being hyposensitive to a stimulant drug, After administering a subject material to PTPζ knockout mice and wild-type mice, PTPζ activity in the PTPζ knockout mice and the wild-type mice is compared and evaluated to screen a PTPζ inhibitor or activator. Examples of the comparison and the evaluation of the PTPζ activity include the comparison and the evaluation of the function of central monoamine pathway such as changes in the level of central monoamine metabolism, sensitivity to a stimulant drug, the presence of dysfunction of mesolimbic dopamine pathway, level of acclimation to new circumstances, or stress-responsiveness.

REFERENCES:
patent: WO 02/46390 (2002-06-01), None
Moreadith, 1997, Gene targeting in embryonic stem cells : the new physiology and metabolism, Journal of Molecular Medicine, vol. 75, pp. 208-216.
Prelle, K. 1999, Establishment of pluripotent cell lines from vertebrate species-present status and future prosopects, Cells Tissues Organs, vol. 165, pp. 220-236.
Wheeler, M.B. 2001, Transgenic technology and applications in swine. Theriogenology, vol. 56, pp. 1345-1369.
Nobuaki Maeda et al., “Involvement of Receptor-Like Protein Tyrosine Phosphatase ζRPTPγ And Its Ligand Pleiotrophin/Heparin-Binding Growth-Associated Molecule (HB-GAM) In Neuronal Migration”, The Journal of Cell Biology, The Rockefeller University Press, vol. 142, No. 1, pp. 203-216, (1998).
W.-J. Song et al., “Somatodendritic Depolarization-Activated Potassium Currents In Rat Neostriatal Cholinergic Interneurons Are Predominantly Of The A Type And Attributable To Coexpression Of Kv4.2 And Kv4.1 Subunits”, The Journal of Neuroscience, Society for Neuroscience, vol. 18, No. 9, pp. 3124-3137, (1998).
Birgit Liss et al., “Alternative Sulfonylurea Receptor Expression Defines Metabolic Sensitivity Of K-ATP Channels In Dopaminergic Midbrain Neurons,” The EMBO Journal, European Molecular Biology Organization, vol. 18, No. 4, pp. 833-846, (1999).
Taeko Nishiwaki et al., “Characterization And Developmental Regulation Of Proteoglycan-Type Protein Tyrosine Phosphatase ζRPTPγ Isoforms”, J. Biochem., The Japanese Biochemical Society, vol. 123, pp. 458-467, (1998).
Kung Meng et al., “Pleiotrophin Signals Increased Tyrosine Phosphorylation of γ-Catenin Through Inactivation Of The Intrinsic Catalytic Activity Of The Receptor-Type Protein Tyrosine Phosphatase γζ”, PNAS, vol. 97, No. 6, pp. 2603-2608, (2000).
Hiroyuki Kawachi et al., “Identification Of GITI Cat-1 As A Substrate Molecule Of Protein Tyrosine Phosphatase ζ γ, By The Yeast Substrate-Trapping System”, PNAS, vol. 98, No. 12, pp. 6593-6598, (2001).
Takafumi Shintani et al., “Neurons As Well As Astrocytes Express Proteoglycan-Type Protein Tyrosine Phosphatase ζRPTPγ: Analysis Of Mice In Which The PTPζRPTPγ Gene Was Replaced With The LacZ Gene”, Neuroscience Letters, vol. 247, pp. 135-138, (1998).
Kinnosuke Yashiro et al., “Activation Of Helicobacter Pylori VacA Toxin By Alkaline Or Acid Conditions Increases Its Binding To A 250-KDa Receptor Protein-Tyrosine Phosphatase γ”, J. Biol. Chem., vol. 274, No. 51, pp. 36693-36699, (1999).
Nobuaki Maeda et al., “6B4 Proteoglycan Phosphaean, An Extracellular Variant Of Receptor-Like Protein-Tyrosine Phosphatase ζRPTPγ, binds Pleiotrophin/Heparin-Binding Growth-Associated Molecule (HB-GAM)”, J. Biol. Chem., vol. 271, No. 35, pp. 21446-21452, (1996).
Nobuaki Maeda et al., “A Receptor-Like Protein-Tyrosine Phosphatase PTPζ RPTPγ Binds A Heparin-Binding Growth Factor Midkine, Involvement Of Arginine 78 Of Midkine In The High Affinity Binding To PTPζ”, J. Biol. Chem., vol. 274, No. 18, pp. 12474-12479, (1999).
Philip Ian Padilla et al. “Morphologic Differentiation of HL-60 Cells is Associated with Appearance of RPTPbeta and Induction of Helicobacter Pylori VacA Sensitivity,” Journal of Biological Chemistry, May 19, 2000, vol. 275, No. 20, pp. 15200-15206.
Fujikawa et al. “Dopaminergic Dysfunction in the Mice Lacking the Receptor Tyrosine Phosphatase Zeta/RPTPbeta Gene,” vol. 27, No. 1, p. 1429 * Abstract*, Nov. 2001, Society for Neuroscience Abstracts.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of screening PTPζ activity promoter or inhibitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of screening PTPζ activity promoter or inhibitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of screening PTPζ activity promoter or inhibitor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3759836

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.