摘要:
The invention concerns various methods of using labeled HSP90 inhibitors to improve treatment of cancer patients with HSP90 inhibitors, including ex vivo and in vivo methods for determining whether a tumor will likely respond to therapy with an HSP90 inhibitor. The disclosure provides a method for determining whether a tumor will likely respond to therapy with an HSP90 inhibitor which comprises the following steps: (a) contacting the tumor or a sample containing cells from the tumor with a detectably labeled HSP90 inhibitor which binds preferentially to a tumor-specific form of HSP90; (b) measuring the amount of labeled HSP90 inhibitor bound to the tumor or the tumor cells in the sample; and (c) comparing the amount of labeled HSP90 inhibitor bound to the tumor or the tumor cells in the sample measured in step (b) to the amount of labeled-HSP90 inhibitor bound to a reference.
摘要:
The disclosure provides evidence that the abundance of this particular “oncogenic HSP90” species, which is not dictated by HSP90 expression alone, predicts for sensitivity to HSP90 inhibition therapy, and thus is a biomarker for HSP90 therapy. The disclosure also provides evidence that identifying and measuring the abundance of this oncogenic HSP90 species in tumors predicts of response to HSP90 therapy. “Oncogenic HSP90” is defined herein as the HSP90 fraction that represents a cell stress specific form of chaperone complex, that is expanded and constitutively maintained in the tumor cell context, and that may execute functions necessary to maintain the malignant phenotype. Such roles are not only to regulate the folding of overexpressed (i.e. HER2), mutated (i.e. mB-Raf) or chimeric proteins (i.e. Bcr-Abl), but also to facilitate scaffolding and complex formation of molecules involved in aberrantly activated signaling complexes (i.e. STATS, BCL6).
摘要:
The disclosure provides evidence that the abundance of this particular “oncogenic HSP90” species, which is not dictated by HSP90 expression alone, predicts for sensitivity to HSP90 inhibition therapy, and thus is a biomarker for HSP90 therapy. The disclosure also provides evidence that identifying and measuring the abundance of this oncogenic HSP90 species in tumors predicts of response to HSP90 therapy. “Oncogenic HSP90” is defined herein as the HSP90 fraction that represents a cell stress specific form of chaperone complex, that is expanded and constitutively maintained in the tumor cell context, and that may execute functions necessary to maintain the malignant phenotype. Such roles are not only to regulate the folding of overexpressed (i.e. HER2), mutated (i.e. mB-Raf) or chimeric proteins (i.e. Bcr-Abl), but also to facilitate scaffolding and complex formation of molecules involved in aberrantly activated signaling complexes (i.e. STATS, BCL6).
摘要:
The disclosure relates to Compounds of Formula (1) : and pharmaceutically acceptable salts thereof wherein Z1, Z2, Z3, Xa, Xb, Xc, Y, X2, and X4 are as defined herein, compositions comprising an effective amount of a Compound of Formula (1) or a pharmaceutically acceptable salt thereof, and methods to treat or prevent a condition, such as cancer which overexpresses Her-kinases, comprising administering to an patient in need thereof a therapeutically effective amount of a Compound of Formula (1) or a pharmaceutically acceptable salt thereof.
摘要:
The disclosure relates to Compounds of Formula (1) : and pharmaceutically acceptable salts thereof wherein Z1, Z2, Z3, Xa, Xb, Xc, Y, X2, and X4 are as defined herein, compositions comprising an effective amount of a Compound of Formula (1) or a pharmaceutically acceptable salt thereof, and methods to treat or prevent a condition, such as cancer which overexpresses Her-kinases, comprising administering to an patient in need thereof a therapeutically effective amount of a Compound of Formula (1) or a pharmaceutically acceptable salt thereof.
摘要:
The disclosure relates to Compounds of Formulae (IA) and (IB): and pharmaceutically acceptable salts thereof wherein Z1, Z2, Z3, Xa, Xb, Xc, Xd, Y, X2, and X4 are as defined herein, compositions comprising an effective amount of a Compound of Formula (IA) and/or (IB), and methods to treat or prevent a condition, such cancer which overexpresses Her-kinases, comprising administering to an patient in need thereof a therapeutically effective amount of a Compound of Formula (IA) or (IB). The disclosure further relates to compounds of Formulae (IA) and IB) in which X2 is a leaving for introducing a radiolabeled atom, such as 124I or 131I and to methods of using such compounds in the preparation of radiolabeled compounds, particularly for use in imaging.
摘要:
The present subject matter relates to a compound represented by the general formula (I) or (I′) or a pharmacologically acceptable salt thereof; pharmaceutical compositions containing at least one of these compounds; methods of making at least one of these compounds; methods of using at least one of these compounds for treating and/or preventing various cancers and/or proliferation disorders; methods of using at least one of these compounds for monitoring the effectiveness of an anticancer therapy against various cancers. In one embodiment, the subject matter relates to compounds that bind with a level of specificity to heat shock protein 70 (Hsp70). In another embodiment, the subject matter relates to compounds that bind with a level of specificity to inhibit both heat shock protein 70 (Hsp70) and heat shock cognate protein 70 (Hsc70).
摘要:
The disclosure relates to Compounds of Formulae (IA) and (IB): and pharmaceutically acceptable salts thereof wherein Z1, Z2, Z3, Xa, Xb, Xc, Xd, Y, X2, and X4 are as defined herein, compositions comprising an effective amount of a Compound of Formula (IA) and/or (IB), and methods to treat or prevent a condition, such cancer which overexpresses Her-kinases, comprising administering to an patient in need thereof a therapeutically effective amount of a Compound of Formula (IA) or (IB). The disclosure further relates to compounds of Formulae (IA) and IB) in which X2 is a leaving for introducing a radiolabeled atom, such as 124I or 131I and to methods of using such compounds in the preparation of radiolabeled compounds, particularly for use in imaging.
摘要:
The present subject matter relates to a compound represented by the general formula (I) or (I′) or a pharmacologically acceptable salt thereof; pharmaceutical compositions containing at least one of these compounds; methods of making at least one of these compounds; methods of using at least one of these compounds for treating and/or preventing various cancers and/or proliferation disorders; methods of using at least one of these compounds for monitoring the effectiveness of an anticancer therapy against various cancers. In one embodiment, the subject matter relates to compounds that bind with a level of specificity to heat shock protein 70 (Hsp70). In another embodiment, the subject matter relates to compounds that bind with a level of specificity to inhibit both heat shock protein 70 (Hsp70) and heat shock cognate protein 70 (Hsc70).