olaptesed pegol

Ligand id: 9674

Name: olaptesed pegol

Classification
Compound class Synthetic organic
International Nonproprietary Names
INN number INN
9718 olaptesed pegol
Synonyms
NOX-A12
Comments
Olaptesed pegol (NOX-A12) is an investigational inhibitor of CXCL12 activity, with a novel mechanism of action [1]. Structurally it is an RNA oligonucleotide in L-configuration (Spiegelmer) conjugated to polyethyleneglycol (PEG). Its sequence is β-L-ribo-[(3'-5')-R-pG-C-G-U-G-G-U-G-U-G-A-U-C-U-A-G-A-U-G-U-A-U-U-G-G-C-U-G-A-UC-C-U-A-G-U-C-A-G-G-U-A-C-G-C], with R being PEG (sequence from the INN record for olaptesed pegol). Chemical synthesis of pegylated Spiegelmers is described by Hoffmann et al. (2011) [2]. Functionally, olaptesed pegol competes with CXCL12 for heparin binding. Once bound to CXCL12, olaptesed pegol causes the release of CXCL12 from stromal cell-surface-bound glycosaminoglycans (GAGs e.g. heparin) and neutralization of the chemokine. This decreases CXCL12 interaction with its cognate receptor CXCR4. Olaptesed pegol was designed to interfere with CXCL12 in the tumour microenvironment, particularly for chronic lymphocytic leukemia, and for cell mobilization. Olaptesed pegol exhibits high binding specificity, low immunogenicity, and structural stability, but it is not orally bioavailable [3].
Database Links
CAS Registry No. 1390628-22-4 (source: SciFinder)
GtoPdb PubChem SID 348353633
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