Inhibitors of mitochondrial fission and methods of use thereof
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsDaria Mochly-Rosen, Xin Qi, Nir Qvit
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AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsDaria Mochly-Rosen, Xin Qi, Nir Qvit
Estimating the term…
The present disclosure provides peptides and constructs that inhibit mitochondrial fission, and compositions comprising the peptides or constructs. The present disclosure provides methods of reducing abnormal mitochondrial fission in a cell. Also provided are methods for designing and validating mitochondrial fission inhibitor constructs and peptides, including but not limited to, evaluating the effects of the constructs and peptides on Drp1 GTPase activity, binding of Drp1 to Fis1, reduction of mitochondrial damage, reduction in cell death, inhibition of mitochondrial fragmentation in a cell under pathological conditions, and reduced loss of neurites in primary dopaminergic neurons in a Parkinsonism cell culture.
A mitochondrial fission inhibitor peptide consisting of 7, 8 or 9 amino acids,
A method for measuring Drp1 GTPase inhibitory activity of a test peptide comprising:
A mitochondrial fission inhibitor peptide consisting of 10, 11 or 12 amino acids, wherein the inhibitor peptide has at least 90% amino acid sequence identity to SEQ ID NO:10, and wherein the inhibitor inhibits a guanosine triphosphate phosphatase (GTPase) activity of the Dynamin 1-like protein (Drp1) (SEQ ID NO:1).
The inhibitor linear peptide construct of claim 19, wherein the fission inhibitor peptide consists of SEQ ID NO:10.
Dependencies are inferred from the claim text.