Design of Chimeric Histone Deacetylase- and Tyrosine Kinase-Inhibitors: A Series of Imatinib Hybrides as Potent Inhibitors of Wild-Type and Mutant BCR-ABL, PDGF-Rβ, and Histone Deacetylases
摘要:
Inhibitors of histone deacetylases are a new class of cancer therapeutics with possibly broad applicability. Combinations of HDAC inhibitors with the kinase inhibitor 1 (Imatimb) in recent studies showed additive and synergistic effects. Here we present a new concept by combining inhibition of protein kinases and HDACs, two independent pharmacological activities, in one synthetic small molecule. In general, the HDAC inhibition profile, the potencies, and the probable binding modes to HDAC1 and HDAC6 were similar as for 6 (SAHA). Inhibition of AN kinase in biochemical assays was maintained for Most compounds, but in general the kinase selectivity profile differed from that of I with nearly equipotent inhibition of the wildtype and the Imatimb resistant Abl (TI)-I-315 mutant. A potent cellular inhibition of PDGFR and cytotoxicity toward EOL-1 cells, a model for idiopathic hypereosinophilic syndrome (HES), are restored or enhanced for selected analogues (12b, 14b, and 18b). Cytotoxicity was evaluated by using a broad panel Of tumor cell lines, with selected analogues displaying mean IC50 values between 3.6 and 7.1 mu M.
Design of Chimeric Histone Deacetylase- and Tyrosine Kinase-Inhibitors: A Series of Imatinib Hybrides as Potent Inhibitors of Wild-Type and Mutant BCR-ABL, PDGF-Rβ, and Histone Deacetylases
摘要:
Inhibitors of histone deacetylases are a new class of cancer therapeutics with possibly broad applicability. Combinations of HDAC inhibitors with the kinase inhibitor 1 (Imatimb) in recent studies showed additive and synergistic effects. Here we present a new concept by combining inhibition of protein kinases and HDACs, two independent pharmacological activities, in one synthetic small molecule. In general, the HDAC inhibition profile, the potencies, and the probable binding modes to HDAC1 and HDAC6 were similar as for 6 (SAHA). Inhibition of AN kinase in biochemical assays was maintained for Most compounds, but in general the kinase selectivity profile differed from that of I with nearly equipotent inhibition of the wildtype and the Imatimb resistant Abl (TI)-I-315 mutant. A potent cellular inhibition of PDGFR and cytotoxicity toward EOL-1 cells, a model for idiopathic hypereosinophilic syndrome (HES), are restored or enhanced for selected analogues (12b, 14b, and 18b). Cytotoxicity was evaluated by using a broad panel Of tumor cell lines, with selected analogues displaying mean IC50 values between 3.6 and 7.1 mu M.
NOVEL BIFUNCTIONAL COMPOUNDS WHICH INHIBIT PROTEIN KINASES AND HISTONE DEACETYLASES
申请人:Bar Thomas
公开号:US20110065734A1
公开(公告)日:2011-03-17
The present invention relates to a bifunctional compound of formula I or its pharmaceutically acceptable salts or solvates A-L-B (I) wherein A is a histone deacetylase (HDAC) inhibitory moiety, L is a single bond or a linker group and B is a protein kinase inhibitory moiety. The bifunctional compound according to formula (I) is useful for the treatment of malignant and non-malignant neoplasia and diseases related to abnormal cell growth.
Novel bifunctional compounds which inhibit protein kinases and histone deacetylases
申请人:4SC AG
公开号:EP2060565A1
公开(公告)日:2009-05-20
The present invention relates to a bifunctional compound of formula I or its pharmaceutically acceptable salts or solvates
A-L-B (I)
wherein A is a histone deacetylase (HDAC) inhibitory moiety, L is a single bond or a linker group and B is a protein kinase inhibitory moiety. The bifunctional compound according to formula (I) is useful for the treatment of malignant and non-malignant neoplasia and diseases related to abnormal cell growth.
本发明涉及式 I 的双官能团化合物或其药学上可接受的盐或溶解物
A-L-B (I)
其中 A 是组蛋白去乙酰化酶(HDAC)抑制分子,L 是单键或连接基团,B 是蛋白激酶抑制分子。根据式(I)的双功能化合物可用于治疗恶性和非恶性肿瘤以及与细胞异常生长有关的疾病。
Design of Chimeric Histone Deacetylase- and Tyrosine Kinase-Inhibitors: A Series of Imatinib Hybrides as Potent Inhibitors of Wild-Type and Mutant BCR-ABL, PDGF-Rβ, and Histone Deacetylases
Inhibitors of histone deacetylases are a new class of cancer therapeutics with possibly broad applicability. Combinations of HDAC inhibitors with the kinase inhibitor 1 (Imatimb) in recent studies showed additive and synergistic effects. Here we present a new concept by combining inhibition of protein kinases and HDACs, two independent pharmacological activities, in one synthetic small molecule. In general, the HDAC inhibition profile, the potencies, and the probable binding modes to HDAC1 and HDAC6 were similar as for 6 (SAHA). Inhibition of AN kinase in biochemical assays was maintained for Most compounds, but in general the kinase selectivity profile differed from that of I with nearly equipotent inhibition of the wildtype and the Imatimb resistant Abl (TI)-I-315 mutant. A potent cellular inhibition of PDGFR and cytotoxicity toward EOL-1 cells, a model for idiopathic hypereosinophilic syndrome (HES), are restored or enhanced for selected analogues (12b, 14b, and 18b). Cytotoxicity was evaluated by using a broad panel Of tumor cell lines, with selected analogues displaying mean IC50 values between 3.6 and 7.1 mu M.