Regulation of biological events using novel compounds
First Claim
Patent Images
1. A method for multimerizing chimeric proteins in cells which comprises:
- (a) providing cells which contain;
(i) a first recombinant nucleic acid encoding a first chimeric protein which binds to rapamycin or an analog thereof and which comprises at least one FK506-binding protein (FKBP) domain and at least one protein domain heterologous thereto, wherein the FKBP domain comprises a naturally occurring FKBP or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids;
(ii) a second recombinant nucleic acid encoding a second chimeric protein which forms a complex with both (a) rapamycin or a rapamycin analog and (b) the first chimeric protein, and which comprises at least one FKBP;
rapamycin binding (FRB) domain and at least one domain heterologous thereto, wherein the FRB domain comprises a peptide sequence selected from a naturally occurring FRB domain, or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids; and
, (b) contacting the cells with a rapalog which forms a complex containing itself and at least one molecule of each of the first and second chimeric proteins, where the rapalog has an immunosup-pressive effect less than 0.01 times that of rapamycin and comprises the substructure of formula I;
bearing one or more optional substituents, optionally unsaturated at one or more carbon—
carbon bonds spanning carbons 1 through 8, as a substantially pure stereoisomer or mixture of stereoisomers, or a pharmaceutically acceptable derivative thereof.
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Abstract
Materials and methods are disclosed for regulation of biological events such as target gene transcription and growth, proliferation or differentiation of engineered cells.
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Citations
36 Claims
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1. A method for multimerizing chimeric proteins in cells which comprises:
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(a) providing cells which contain;
(i) a first recombinant nucleic acid encoding a first chimeric protein which binds to rapamycin or an analog thereof and which comprises at least one FK506-binding protein (FKBP) domain and at least one protein domain heterologous thereto, wherein the FKBP domain comprises a naturally occurring FKBP or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids;
(ii) a second recombinant nucleic acid encoding a second chimeric protein which forms a complex with both (a) rapamycin or a rapamycin analog and (b) the first chimeric protein, and which comprises at least one FKBP;
rapamycin binding (FRB) domain and at least one domain heterologous thereto, wherein the FRB domain comprises a peptide sequence selected from a naturally occurring FRB domain, or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids; and
,(b) contacting the cells with a rapalog which forms a complex containing itself and at least one molecule of each of the first and second chimeric proteins, where the rapalog has an immunosup-pressive effect less than 0.01 times that of rapamycin and comprises the substructure of formula I;
bearing one or more optional substituents, optionally unsaturated at one or more carbon—
carbon bonds spanning carbons 1 through 8, as a substantially pure stereoisomer or mixture of stereoisomers, or a pharmaceutically acceptable derivative thereof.- View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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2. A method for multimerizing chimeric proteins in cells which comprises:
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(a) providing cells which contain;
(i) a first recombinant nucleic acid encoding a first chimeric protein which binds to rapamycin or an analog thereof and which comprises at least one FKBP domain and at least one protein domain heterologous thereto, wherein the FKBP domain comprises a naturally occurring FKBP or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids;
(ii) a second recombinant nucleic acid encoding a second chimeric protein which forms a complex with both (a) rapamycin or a rapamycin analog and (b) the first chimeric protein, and which comprises at least one FRB domain and at least one domain heterologous thereto, wherein the FRB domain comprises a naturally occurring FRB domain or a variant thereof in which up to 10 amino acid residues have been deleted, inserted, or replaced with substitute amino acids; and
(b) contacting the cells with a rapalog which forms a complex containing itself and at least one molecule of each of the first and second chimeric proteins, where the rapalog is of the formula;
wherein one of RC7a and RC7b is H and the other is —
H, halo, —
R2, —
OR1, —
SR1, —
OC(O)R1, —
OC(O)NHR1, —
NHR1, —
NHR1R2, —
NHC(O)R1, or —
NH—
SO2—
R1, where R2=aliphatic, heteroaliphatic, aryl, heteroaryl or alkylaryl,RC30 is halo, —
OR3 or (═
O),RC24 is ═
O, ═
NR4, ═
NOR4, ═
NNHR4, —
NHOR4, —
NHNHR4, —
OR4, —
OC(O)R4, —
OC(O)NR4, halo or —
H,RC14 is ═
O, —
OR6, —
NR6, —
H, —
NC(O)R6, —
OC(O)R6 or —
OC(O)NR6R3 is H, —
R7, —
C(O)R7 or —
C(O)NHR7 or a cyclic moiety bridging C28 and C30RC28 is halo or —
OR3RC29 is H, OH or OMe where each substituent is present in either stereochemical orientation unless otherwise indicated, and where R1, R4, R5, R6, R7, R9, and R10 are independently selected from H, aliphatic, heteroaliphatic, aryl or heteroaryl;
R8 is H, halo, —
CN, ═
O, —
OH, —
NR9R10, OSO2CF3, OSO2F, OSO2R4′
, OCOR4′
, OCONR4′
R5′
, or OCON(OR4′
)R5′
;
in which one or both of RC13 and RC28 is a halo substituent;
both RC24 and RC30 are other than ═
O;
one of RC7a and RC7b is H and the other is phenyl, di- or tri-substituted phenyl or a mono- or di-substituted heterocyclic moiety;
n is 1; and
/or moietyas a substantially pure stereoisomer or mixture of stereoisomers, or a pharmaceutically acceptable derivative thereof. - View Dependent Claims (3, 4, 15, 16, 17, 18, 19)
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Specification