针对骨关节炎的向策略:生物材料,关节特异性药物输送和转化进展
Haozhe Chen1, Jialin Sun1, Yue Liao1
1State Key Laboratory of Oral Diseases & National Center For Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Advanced healthcare materials
|March 4, 2026
概括
骨关节炎治疗由于关节结构和药物清除而面临挑战. 通过智能生物材料利用酸性pH和活性氧物种 (ROS),可以为改善骨关节炎治疗提供有针对性的药物输送.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 生物技术是生物技术.
背景情况:
- 骨关节炎 (OA) 是一种退行性关节疾病,由于软骨的密集基质和快速药物清除,治疗选择有限.
- 复杂的关节结构,如椎间盘,阴囊和关节盘,为治疗带来独特的解剖学和生物力学挑战.
- 氧化的微环境,以酸性pH值和高反应性氧物种 (ROS) 为特征,为向治疗提供了潜力.
研究的目的:
- 对模拟关节环境和选OA疗法的生物反应器技术进行审查.
- 检查关节结构中的微观变化作为治疗障碍和机会.
- 突出智能生物材料和针对性OA治疗的传递系统.
主要方法:
- 对OA研究的生物反应器技术的审查.
- 对关节组织微观变化的分析.
- 对响应pH和ROS的智能生物材料的检查.
- 关节结构的组织特定向和传递系统的概述.
主要成果:
- 生物反应器为研究OA病原和治疗查提供了平台.
- 智能生物材料利用OA特定的线索 (pH,ROS) 实现特定地点的药物输送.
- 目前正在开发针对表面和深层软骨层的向策略.
- 交付系统正在为复杂的关节结构量身定制,并注意到翻译方面的进展.
结论:
- 利用OA特定的微环境线索是针对性和响应性处理的有希望的策略.
- 智能生物材料和先进的传递系统对于克服OA治疗挑战至关重要.
- 新兴的方法显示了在骨关节炎管理中桥梁实验室研究和临床应用的潜力.
相关概念视频
Site-Targeted Drug Delivery Systems: Polymeric Carriers
64
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
64
Modified-Release Drug Delivery Systems: Site-Targeted
57
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
57
Drug Delivery Systems: Different Types
131
Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...
131
Drug Delivery: Miscellaneous Routes
902
Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection, and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
902
Ophthalmic Drug Delivery Systems
117
Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
117


