[EN] INTERNALIZING BINDING MOLECULES<br/>[FR] INTERNALISATION DE MOLÉCULES DE LIAISON
申请人:LINXIS B V
公开号:WO2022060223A1
公开(公告)日:2022-03-24
The invention relates to the field of binding molecules comprising at least one single variable antibody domain, targeted at receptors present on fibrogenic effector cells, such as activated hepatic stellate cells in liver fibrosis, activated interstitial fibroblasts or vascular smooth muscle cells in lung fibrosis, activated mesangial- or interstitial fibroblasts in renal fibrosis, activated dermal fibroblasts in systemic sclerosis/scleroderma, activated fibroblasts in inflammatory bowel disease, or tumor-supporting stromal fibroblasts in sclerosing malignant tumors. More in particular, the invention relates to internalizing binding molecules for cell-specific targeted delivery of anti-fibrotic substances. The invention also relates to a binding molecule comprising at least two single variable antibody domains, each targeting a receptor on said fibrogenic effector cells. The invention further relates to nucleic acids encoding such binding molecules, a host cell for expression of such binding molecules and to methods for preparing such binding molecules. The invention further relates to pharmaceutical compositions that comprise such binding molecule and to uses of such binding molecules and/or compositions, in particular for prophylactic, therapeutic or diagnostic purposes.
本发明涉及结合分子领域,其包括至少一个单一可变抗体结构域,针对纤维化效应细胞上存在的受体,例如肝纤维化中的活化肝星状细胞,肺纤维化中的活化间质成纤维细胞或血管平滑肌细胞,肾脏纤维化中的活化系膜或间质成纤维细胞,系统性硬化/硬皮病中的活化真皮成纤维细胞,炎症性肠病中的活化成纤维细胞,或者硬化恶性肿瘤中支持肿瘤的基质成纤维细胞。更具体地,本发明涉及内化结合分子,用于细胞特异性靶向输送抗纤维化物质。本发明还涉及一种结合分子,包括至少两个单一可变抗体结构域,每个结构域靶向上述纤维化效应细胞上的一个受体。本发明还涉及编码这种结合分子的核酸,表达这种结合分子的宿主细胞以及制备这种结合分子的方法。本发明还涉及包括这种结合分子的制药组合物以及这种结合分子和/或组合物的用途,特别是用于预防、治疗或诊断目的。