1 Introduction Ulcerative colitis (UC) is a chronic, relapsing form of inflammatory bowel disease (IBD) characterized by immune system dysfunction and pathological overactivation of mucosal immune responses, leading to persistent inflammation and subsequent colonic mucosal injury ( Sirtuins (SIRTs) represent a family of evolutionarily conserved enzymes that are dependent on NAD + , categorized into seven distinct members (SIRT1 through SIRT7) ( + -dependent deacetylase sirtuin-1 (SIRT1) meticulously regulates a variety of substrates, such as histone and non-histone proteins, thereby producing significant effects on metabolic homeostasis, apoptosis regulation, inflammatory responses, attenuation of oxidative stress, and even the aging process ( Signal transducer and activator of transcription 3 (STAT3), a crucial cytoplasmic transcription factor in the STAT family, consists of 770 amino acids and possesses a complex domain structure, facilitating its diverse roles in cell signaling and gene regulation ( Short peptides are distinctive biomolecules that combine the benefits of traditional small molecules and mature proteins, offering new, more effective therapeutic agents with fewer side effects ( 2+ affinity comparable to that of albumins copper transport sites, forming an in vivo complex, glycyl-L-histidyl-L-lysine-Cu 2+ (GHK-Cu), which enhances its bioavailability (Figure 1A
Another study systematically evaluated the influence of PEG molecular weight, architecture, and conjugation chemistry on peptide delivery efficiency and cytotoxicity, revealing that these parameters critically affect the performance of PEGylated peptides
(2015) 166:6205.e624
European Neurology
