Recipient cell membranes and associated surface receptors in injured or inflamed tissue

The term "Recipient cell membranes and associated surface receptors in injured or inflamed tissue" refers to the complex biological interface of cells within a pathological microenvironment rather than a single molecular entity. This site is characterized by the localized upregulation of specific proteins, including cell adhesion molecules (CAMs) such as ICAM-1 and VCAM-1, and various chemokine receptors like CXCR4 (Source: PubMed, PMID: 30245168). In the context of advanced pharmacology, these surface features are exploited as docking sites for targeted drug delivery systems, including mesenchymal stem cells (MSCs), exosomes, and functionalized nanoparticles, which "home" to these areas to deliver anti-inflammatory or regenerative payloads (Source: Nature Reviews Materials, doi:10.1038/s41578-020-0182-3). The interaction typically involves the binding of specific ligands or homing receptors on the therapeutic vehicle to the overexpressed receptors on the recipient cell membrane (Source: Frontiers in Pharmacology, doi:10.3389/fphar.2019.01028). This targeting strategy aims to increase local drug concentration while minimizing systemic side effects in conditions such as myocardial infarction, rheumatoid arthritis, and solid tumors (Source: Journal of Controlled Release, doi:10.1016/j.jconrel.2021.08.015). Consequently, while the membrane itself provides a physical barrier, its associated receptors act as the functional targets for localized therapeutic intervention.

Other names

Inflammatory cell surfaceInjured tissue microenvironmentTarget cell membrane interfaceInflamed endothelium

Therapeutic agents or delivery vehicles utilize ligand-receptor interactions to home and adhere to upregulated adhesion molecules and chemokine receptors on the recipient cell surface in pathological sites.