Structural modifications allow them to stay in circulation for hours or even days: IGF-1 LR3 : 2030 hour half-life CJC-1295 with DAC : 58 day half-life PEG-MGF : detectable for up to 12 weeks Pharmacokinetic enhancements such as PEGylation or fatty acid acylation extend the peptides residence time, reduce renal clearance, and improve therapeutic utility. Veronese & Mero, BioDrugs What Determines How Long Peptides Stay in Your System
Int J Pathophysiol Pharmacol 15(3):5674 Zhao H et al (2016) Frontal cortical mitochondrial dysfunction and mitochondria-related -amyloid accumulation by chronic sleep restriction in mice
Sikiric, P., Petek, M., Rucman, R., Seiwerth, S., Grabarevic, Z., Rotkvic, I.,
Bibcode:1956Sci...124..484C
Cancer-cell-secreted CXCL11 promoted CD8+ T cells infiltration through docetaxel-induced-release of HMGB1 in NSCLC