Natural endogenous materials (NEMs), such as cell and cell derivatives, polysaccharide, protein and peptide, and nucleic acid-derived vectors, often exhibit biocompatibility, biodegradability and natural homing ability, which can minimize adverse reactions in vivo and have the potential to improve drug delivery efficacy. Currently, a variety of drug delivery systems (DDSs) based on NEMs have been constructed for macromolecules to address the challenges posed by their inherent large size, intricate structure, low permeability, and susceptibility to harsh environments. The aim of this article is to provide a comprehensive overview of various delivery strategies that predominantly utilize NEMs as carriers for macromolecular delivery. By thoroughly discussing the pros and cons of NEM-based DDSs, we hope to provide valuable insights into future innovations in pharmaceutical science, with a focus on improving therapeutic outcomes through advanced drug formulations.
Animals ; Humans ; Biological Products/chemistry* ; Drug Carriers/chemistry* ; Drug Delivery Systems ; Macromolecular Substances/chemistry*

The authors introduced a pharmaceutical care mode by establishing a medication management platform(" Smart Pharmacists" platform), automatically and regularly sending personalized medication reminders for out-of-hospital patients. In virtue of the medication consultation service built on mobile internet technology, the hospital information system was seamlessly connected with the WeChat public account of the hospital, hence broadening pharmaceutical care. The " Smart Pharmacists" platform covered such six parts as medication reminder, medication record, voice broadcast, medication consultation, prescription query, and package insert inquiry. It serves as a reminder of taking medicine for patients out of the hospital and provides an accessible " pharmacist-patient interaction" service window, which will guarantee the safety and effectiveness of medication for out-of-hospital patients.