High-affinity, dimeric inhibitors of PSD-95 as efficient neuroprotectants against ischemic brain damage and for treatment of pain
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United States of America Patent
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Sep 22, 2015
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Apr 3, 2014
app pub date -
May 11, 2012
filing date -
May 13, 2011
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Abstract
The invention provides novel potent inhibitors of the ternary protein complex of nNOS, PSD-95, and the NMDA receptor and pharmaceutical compositions comprising the inhibitors for prophylaxis and/or treatment of excitotoxic-related disease and chronic pain conditions in a subject. The inhibitors are dimeric PSD-95 inhibitors comprising a first peptide or peptide analogue linked to a second peptide or peptide analogue by a linker, wherein the first and the second peptide or peptide analogue comprise at least four amide-bonded residues having a sequence YTXV (SEQ ID NO: 5) or YSXV (SEQ ID NO: 6), wherein a. Y is selected from among E, Q, and A, or an analogue thereof, and b. X is selected from among A, Q, D, N, N-Me-A, N-Me-Q, N-Me-D, and N-Me-N or an analogue thereof, and wherein a Cell Penetrating Peptide (CPP) is linked to the linker or to an amino acid side chain of the first and second peptide or peptide analogue. The linker can be a PEG or NPEG linker.
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