Injectable and Self‐Healing Hydrogel with Anti‐Bacterial and Anti‐Inflammatory Properties for Acute Bacterial Rhinosinusitis with Micro Invasive Treatment. Issue 20 (9th September 2020)

• Record Type: Journal Article
• Authors: Chen, Zhengming; Cai, Zhengwei; Zhu, Chengjing; Song, Xianmin; Qin, Yanghua; Zhu, Minhui; Zhang, Tao; Cui, Wenguo; Tang, Haihong; Zheng, Hongliang
• Is Part Of: Advanced healthcare materials. Volume 9:Issue 20(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-09-09
• Subjects: acute bacterial rhinosinusitis -- anti‐bacterial properties -- anti‐inflammation properties -- micro‐invasive drug delivery -- self‐healing hydrogels; Biomedical materials -- Periodicals; 610.28
• DOI: 10.1002/adhm.202001032
• Languages: English
• ISSNs: 2192-2640

Abstract

Abstract: Systemic antibiotic therapy is the main treatment for acute bacterial rhinosinusitis (ABRS). However, this treatment often causes side effects of dizziness, diarrhea, and drug resistance. In this study, a new polyethylene glycol hydrogel (PEG‐H) treatment model is developed to achieve sustained release of drugs at the locality while avoiding those adverse effects. The PEG‐H is composed of 4‐arm‐PEG‐SH and silver ions through a high affinity and dynamic reversible coordination bond between the thiol and silver ion. In the initial test, PEG‐H is loaded with Clarithromycin (CAM‐Lips@Hydrogel) or Clarithromycin and Budesonide liposomes (CAM+BUD‐Lips@Hydrogel). The results show that PEG‐H maintains the characteristics of self‐healing, biodegradability, moderate swelling rate, injectibility and sustained drug release. In in vivo studies, the hydrogel is injected into the maxillary sinus of ABRS rabbit models. In both a single or combined load, the hydrogel not only plays an effective role as an anti‐bacterial, but also inhibits inflammatory response of local sinus mucosa. In addition, no other side effects are observed in the ABRS rabbit model through behavioral observation and drug sensitivity tests. Therefore, the injectable self‐healing hydrogel with anti‐bacterial and anti‐inflammatory properties provides a new micro invasive therapeutic method for the clinical treatment of ABRS. Abstract : An injectable and self‐healing hydrogel is first developed to treat acute bacterial rhinosinusitis based on high affinity and reversible combination between thiol and Ag + . This dynamic hydrogel with anti‐bacterial and anti‐inflammatory properties is suitable for sinus micro invasive treatment which not only effectively eliminates pathogens, but also reduces mucosal edema. This approach provides a new strategy for avoiding systemic abuse of antibiotics.