Design and synthesis of EGFR dimerization inhibitors and evaluation of their potential in the treatment of psoriasis
摘要:
Hit compounds from in silico screening for inhibitors of the EGFR dimerization process were evaluated for their anti-proliferative (CCD-1106 keratinocytes) and anti-oxidant (TBA assay) activity and their effect on EGFR dimerization (BS3 chemical crosslinking assay). 7-Benzyl-8-{N'-[1-( 3-ethoxy-4-hydroxyphenyl)meth-(Z)-ylidene]hydrazino}-1,3-dimethylxanthine 2a (127 mu M) leads to 37% inhibition of p-EGFR dimerization in the CCD-1106 cell line and also inhibits phosphorylation of proteins in the MAPK/ERK pathway, ERK 1/2 and p-38. Based on this initial data, 2a was selected for further study and was evaluated for its anti-proliferative activity in a range of keratinocyte (CCD-1106, HaCaT and NHEK) and monocyte (ThP1 and U937) cell lines. Xanthine 2a is pro-apoptotic in HaCaT keratinocytes, as shown by electron microscopy, caspase 3/7, and annexin V-FITC/PI flow cytometric assays. It is significantly less cytotoxic than the established antipsoriatic agent dithranol 14, as determined by MTT and LDH release assays, and thus has potential as a lead compound for the treatment of psoriasis. (C) 2012 Elsevier Ltd. All rights reserved.
Design and synthesis of EGFR dimerization inhibitors and evaluation of their potential in the treatment of psoriasis
摘要:
Hit compounds from in silico screening for inhibitors of the EGFR dimerization process were evaluated for their anti-proliferative (CCD-1106 keratinocytes) and anti-oxidant (TBA assay) activity and their effect on EGFR dimerization (BS3 chemical crosslinking assay). 7-Benzyl-8-{N'-[1-( 3-ethoxy-4-hydroxyphenyl)meth-(Z)-ylidene]hydrazino}-1,3-dimethylxanthine 2a (127 mu M) leads to 37% inhibition of p-EGFR dimerization in the CCD-1106 cell line and also inhibits phosphorylation of proteins in the MAPK/ERK pathway, ERK 1/2 and p-38. Based on this initial data, 2a was selected for further study and was evaluated for its anti-proliferative activity in a range of keratinocyte (CCD-1106, HaCaT and NHEK) and monocyte (ThP1 and U937) cell lines. Xanthine 2a is pro-apoptotic in HaCaT keratinocytes, as shown by electron microscopy, caspase 3/7, and annexin V-FITC/PI flow cytometric assays. It is significantly less cytotoxic than the established antipsoriatic agent dithranol 14, as determined by MTT and LDH release assays, and thus has potential as a lead compound for the treatment of psoriasis. (C) 2012 Elsevier Ltd. All rights reserved.
Compounds, compositions and methods are described for inhibiting the TRPC5 ion channel and disorders related to TRPC5.
本文描述了抑制TRPC5离子通道及与TRPC5相关的疾病的化合物、组合物和方法。
US2014/275528
申请人:——
公开号:——
公开(公告)日:——
US20140275528A1
申请人:——
公开号:——
公开(公告)日:——
[EN] SUBSTITUTED XANTHINES AND METHODS OF USE THEREOF<br/>[FR] XANTHINES SUBSTITUÉES ET LEURS PROCÉDÉS D'UTILISATION
申请人:HYDRA BIOSCIENCES INC
公开号:WO2014152287A2
公开(公告)日:2014-09-25
Compounds, compositions and methods are described for inhibiting the TRPC5 ion channel and disorders related to TRPC5.
Design and synthesis of EGFR dimerization inhibitors and evaluation of their potential in the treatment of psoriasis
作者:Donna Petch、Rosaleen J. Anderson、Anne Cunningham、Suja E. George、David E. Hibbs、Ran Liu、Simon P. Mackay、Andrew Paul、David A.P. Small、Paul W. Groundwater
DOI:10.1016/j.bmc.2012.07.048
日期:2012.10
Hit compounds from in silico screening for inhibitors of the EGFR dimerization process were evaluated for their anti-proliferative (CCD-1106 keratinocytes) and anti-oxidant (TBA assay) activity and their effect on EGFR dimerization (BS3 chemical crosslinking assay). 7-Benzyl-8-N'-[1-( 3-ethoxy-4-hydroxyphenyl)meth-(Z)-ylidene]hydrazino}-1,3-dimethylxanthine 2a (127 mu M) leads to 37% inhibition of p-EGFR dimerization in the CCD-1106 cell line and also inhibits phosphorylation of proteins in the MAPK/ERK pathway, ERK 1/2 and p-38. Based on this initial data, 2a was selected for further study and was evaluated for its anti-proliferative activity in a range of keratinocyte (CCD-1106, HaCaT and NHEK) and monocyte (ThP1 and U937) cell lines. Xanthine 2a is pro-apoptotic in HaCaT keratinocytes, as shown by electron microscopy, caspase 3/7, and annexin V-FITC/PI flow cytometric assays. It is significantly less cytotoxic than the established antipsoriatic agent dithranol 14, as determined by MTT and LDH release assays, and thus has potential as a lead compound for the treatment of psoriasis. (C) 2012 Elsevier Ltd. All rights reserved.