Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047, United States.
J Neuroimmunol. 2013 Oct 15;263(1-2):20-7. doi: 10.1016/j.jneuroim.2013.07.009. Epub 2013 Aug 1.
Previously, bifunctional peptide inhibitors (BPI) with a single antigenic peptide have been shown to suppress experimental autoimmune encephalomyelitis (EAE) in an antigen-specific manner. In this study, a multivalent BPI (MVBMOG/PLP) with two antigenic peptides derived from myelin oligodendrocyte glycoprotein (MOG38-50) and myelin proteolipid protein (PLP139-151) was evaluated in suppressing MOG38-50- and PLP139-151-induced EAE. MVBMOG/PLP significantly suppressed both models of EAE even when there was some evidence of epitope spreading in the MOG38-50-induced EAE model. In addition, MVBMOG/PLP was found to be more effective than PLP-BPI and MOG-BPI in suppressing MOG38-50-induced EAE. Thus, the development of MVB molecules with broader antigenic targets can lead to suppression of epitope spreading in EAE.
先前,具有单一抗原肽的双功能肽抑制剂 (BPI) 已被证明能够以抗原特异性方式抑制实验性自身免疫性脑脊髓炎 (EAE)。在这项研究中,评估了一种具有两个抗原肽的多价 BPI (MVBMOG/PLP),这两个抗原肽来源于髓鞘少突胶质细胞糖蛋白 (MOG38-50) 和髓鞘蛋白脂质蛋白 (PLP139-151),以抑制 MOG38-50- 和 PLP139-151 诱导的 EAE。即使在 MOG38-50 诱导的 EAE 模型中出现表位扩展的一些证据时,MVBMOG/PLP 也显著抑制了这两种 EAE 模型。此外,与 PLP-BPI 和 MOG-BPI 相比,MVBMOG/PLP 更有效地抑制了 MOG38-50 诱导的 EAE。因此,开发具有更广泛抗原靶标的 MVB 分子可以导致 EAE 中表位扩展的抑制。