METHODS AND COMPOSITIONS RELATING TO THE REGULATION OF APOPTOSIS BY MUC1 AND BH3-CONTAINING PROAPOPTOTIC PROTEINS
First Claim
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1. A method of identifying a compound that inhibits the binding of MUC1 to a BH3-containing proapoptotic protein, the method comprising:
- (a) contacting a MUC1 reagent with a BH3-containing proapoptotic protein reagent in the presence of a candidate compound; and
(b) determining whether the candidate compound inhibits binding of the MUC1 reagent to the BH3-containing proapoptotic reagent.
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Abstract
This invention relates to regulation of cell signaling, cell growth, and more particularly to the regulation of cancer or immune cell growth. The invention provides methods of inhibiting interactions between MUC1 and BH3-containing proapoptotic proteins, methods of inhibiting MUC1 expression, and methods of promoting apoptosis. Also provided are screening methods for compounds that inhibit interactions between MUC1 and BH3-containing proapoptotic proteins and pharmaceutical compositions of the same.
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Citations
62 Claims
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1. A method of identifying a compound that inhibits the binding of MUC1 to a BH3-containing proapoptotic protein, the method comprising:
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(a) contacting a MUC1 reagent with a BH3-containing proapoptotic protein reagent in the presence of a candidate compound; and (b) determining whether the candidate compound inhibits binding of the MUC1 reagent to the BH3-containing proapoptotic reagent. - View Dependent Claims (2, 3, 4, 9, 10)
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5. A method of generating a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein, the method comprising:
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(a) providing a three-dimensional structure of a molecule or a molecular complex, the structure comprising;
(i) the cytoplasmic domain of MUC1 or a BH3-containing proapoptotic protein-binding fragment thereof;
(ii) a molecule comprising a BH3-containing proapoptotic protein or a MUC1-binding fragment thereof;
or (iii) a molecular complex comprising (i) and (ii);(b) designing, based on the three-dimensional structure, a compound comprising a region that inhibits the interaction between MUC1 and the BH3-containing proapoptotic protein; and (c) producing the compound. - View Dependent Claims (6, 7, 8)
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11. A process of manufacturing a compound, the process comprising:
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(a) contacting a MUC1 reagent with a BH3-containing proapoptotic protein reagent in the presence of a candidate compound; (b) determining whether the candidate compound inhibits binding of the MUC1 reagent to the BH3-containing proapoptotic reagent; and (c) after determining that a compound inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein, manufacturing the compound.
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12. An in vitro method of inhibiting an interaction between MUC1 and a BH3-containing proapoptotic protein, the method comprising contacting (i) a MUC1 reagent;
- (ii) a BH3-containing proapoptotic protein reagent;
or (iii) a molecular complex comprising (i) or (ii) with a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein. - View Dependent Claims (13, 14, 15, 16)
- (ii) a BH3-containing proapoptotic protein reagent;
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17. An in vitro method of promoting apoptosis in a cell, the method comprising:
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(a) identifying a cell as one expressing a BH2-containing antiapoptotic protein; and (b) contacting (i) a MUC1 reagent;
(ii) a BH3-containing proapoptotic protein reagent;
or (iii) a molecular complex comprising (i) or (ii) with a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein, wherein the BH3-containing proapoptotic protein is capable of binding to the BH2-containing antiapoptotic protein. - View Dependent Claims (18, 19, 20, 21, 22)
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- 23. An in vitro method of promoting apoptosis in a cell, the method comprising identifying a cell as one expressing a BH3-containing proapoptotic protein, and culturing the cell with a compound that inhibits the expression of MUC1.
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25. An in vitro method of promoting apoptosis in a cell, the method comprising identifying a cell as one expressing MUC1, and culturing the cell with an inhibitor of a BH2-containing antiapoptotic protein.
- 26. An in vivo method of inhibiting an interaction between MUC1 and a BH3-containing proapoptotic protein, the method comprising delivering to a subject a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein.
- 44. An in vivo method of promoting apoptosis in a cell, the method comprising identifying a subject as one having a cancer comprising one or more cells expressing a BH3-containing proapoptotic protein, and delivering to the subject a compound that inhibits MUC1.
- 50. An in vivo method of promoting apoptosis in a cell, the method comprising identifying a subject as one having a cancer comprising one or more cells expressing a BH2-containing antiapoptotic protein, and delivering to the subject a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein, wherein the BH3-containing proapoptotic protein is capable of binding to the BH2-containing antiapoptotic protein.
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52. An in vivo method of promoting apoptosis in a cell, the method comprising identifying a subject as having a cancer comprising one or more cells expressing MUC1, and delivering to the subject an inhibitor of a BH2-containing antiapoptotic protein.
- 53. An in vivo method of promoting apoptosis in a cell, the method comprising identifying a subject as one having a inflammatory condition mediated by one or more inflammatory cells expressing a BH3-containing proapoptotic protein, and delivering to the subject a compound that inhibits MUC1.
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58. An in vivo method of promoting apoptosis in a cell, the method comprising:
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(a) identifying a subject as one having a inflammatory condition mediated by one or more inflammatory cells expressing a BH2-containing antiapoptotic protein; and (b) delivering to the subject a compound that inhibits the interaction between MUC1 and a BH3-containing proapoptotic protein, wherein the BH3-containing proapoptotic protein is capable of binding to the BH2-containing antiapoptotic protein. - View Dependent Claims (59)
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- 60. An in vivo method of promoting apoptosis in a cell, the method comprising identifying a subject as one having a inflammatory condition mediated by one or more inflammatory cells expressing MUC1, and delivering to the subject an inhibitor of a BH2-containing antiapoptotic protein.
Specification