KPV (Dalmasso et al., 2008) |
Interaction with PepT1 |
Oral |
VIP (Lakhan and Kirchgessner, 2010; Dulari et al., 2020) |
Modulates the immune system by binding to two G-protein-coupled VIP receptor |
Oral |
Cortistatin (Gonzalez-Rey et al., 2006) |
Binding to receptor for the growth hormone secretagogue ghrelin |
Intrarectal |
Ac2-26 (Li et al., 2019) |
Inhibitor of NF-κB |
Oral delivery |
GLP-2 (Ivory et al., 2008) |
Inhibiting ERK1/2, JNK1/2, NF-κB signaling pathways, and SOCS in STAT-3 signaling |
Subcutaneous |
WKYMVm (Kim et al., 2013) |
Inhibit the production of proinflammatory cytokines such as TNF-α and interleukin (IL)-1β |
Subcutaneous |
Cathelicidin (Koon et al., 2011) |
Toll-like receptor |
Intracolonic |
Adrenomedullin (Ashizuka et al., 2013) |
Downregulation of inflammatory cytokines |
NA |
Tyr-Pro-D-Ala-NH2–DI-1 (Salaga et al., 2018) |
Regulate GLP-2 level |
Intracolonic |