Development of a monoclonal anti-ADAMTS-5 antibody that specifically blocks the interaction with LRP1

作者：Santamaria Salvatore; Fedorov Oleg; McCafferty John; Murphy Gillian; Dudhia Jayesh; Nagase Hideaki; Yamamoto Kazuhiro^*

来源：mAbs, 2017, 9(4): 595-602.

DOI：10.1080/19420862.2017.1304341

• Aggrecanase
• cartilage
• endocytosis
• extracellular matrix
• proteoglycanase

The potent aggrecanase ADAMTS-5 is constitutively secreted by chondrocytes, but it is rapidly endocytosed in normal cartilage via the cell surface endocytic receptor LRP1. Therefore it is difficult to detect the total ADAMTS-5 activity produced. In this study, we isolated a monoclonal anti-ADAMTS-5 antibody 1B7 that blocks LRP1-mediated internalization without affecting the aggrecanolytic activity. Addition of 1B7 to cultured human chondrocytes revealed the full aggrecanolytic activity of ADAMTS-5 generated by the cells. 1B7 is a useful tool to estimate the ADAMTS-5 activity and to identify its potential roles in the tissues.

• 出版日期2017