TREATING PATHOLOGICAL CONDITIONS BY DIRECT AND INDIRECT TARGETING OF SIRPA - CD47 INTERACTION
申请人:Stichting Het Nederlands Kanker Instituut-
Antoni van Leeuwenhoek Ziekenhuis
公开号:EP3747438A1
公开(公告)日:2020-12-09
The present invention relates to active agents or compounds as well as pharmaceutical compositions comprising said compounds, which are capable of reducing or inhibiting or blocking the enzymatic activity of the glutaminyl-peptide cyclotransferase (QPCT) protein, the glutaminyl-peptide cyclotransferase-like protein (QPCTL) protein, or combinations thereof or are capable of reducing or inhibiting the expression of QPCT gene, the QPCTL gene, or combinations thereof. Also provided are methods for screening or selecting for said compounds. The present invention further relates to a pharmaceutical composition comprising a first active agent for use in a method of treating a condition in a subject that would benefit from reducing the signaling or the binding between SIRPa and CD47 in the subject (e.g. cancer), wherein the method of treating comprises reducing expression or enzymatic activity of QPCTL, QPCT, or combinations thereof in the cell with CD47 on the surface. The compounds and pharmaceutical compositions of the invention may be particularly useful for treating a subject suffering from a disease or condition involving the CD47-SIRPa signaling axis such including e.g., various cancer types, atherosclerosis, fibrotic diseases, and infectious diseases.
本发明涉及活性剂或化合物以及包含所述化合物的药物组合物,它们能够降低或抑制或阻断谷氨酰胺酰肽环转酶(QPCT)蛋白、谷氨酰胺酰肽环转酶样蛋白(QPCTL)蛋白或其组合的酶活性,或者能够降低或抑制QPCT基因、QPCTL基因或其组合的表达。还提供了筛选或选择所述化合物的方法。本发明进一步涉及一种药物组合物,该药物组合物包含第一活性剂,用于治疗受试者(如癌症)中可从减少SIRPa和CD47之间的信号转导或结合中获益的病症的方法,其中治疗方法包括减少表面有CD47的细胞中QPCTL、QPCT或其组合的表达或酶活性。本发明的化合物和药物组合物可能特别适用于治疗患有涉及 CD47-SIRPa 信号轴的疾病或病症的受试者,例如包括各种癌症类型、动脉粥样硬化、纤维化疾病和传染性疾病。