Design of next-generation degradable polymer materials with immunoregulatory properties

具有免疫调节特性的下一代可降解高分子材料的设计

• 批准号: RGPIN-2022-03666
• 负责人: DavenportHuyer, Locke
• 金额: $ 2.11万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=743701
• 关键词: Design; next; generation; degradable; polymer

Synthetic polymer materials provide optimized properties that enable diverse medical device technologies. While foundational to medical advances, the clinical application of these devices is fraught with challenges: patients frequently encounter undesired side effects that require follow-up treatments, device removal, and ongoing therapies. Many of these are caused by inflammation related to material composition, highlighting the need for novel polymer development that can provide inherent control of undesired immune cell behaviour. The proposed research program will address this need, taking inspiration from biology to build a family of degradable polymer materials that can deliver potent regulators of inflammation. Our lab recently developed immune regulatory materials by building molecules of the body's inherent regulatory systems directly into degradable polymer backbones, demonstrating the utility of delivering regulatory building blocks in materials that break down over time. From our expertise in degradable polyester materials, we will apply this approach to build family of materials inspired by the stable small molecules cells use to self-regulate inflammation in multiple cell types. Using these molecules, we will generate a library of regulatory polymers with utility in diverse biomaterial applications. This will be achieved by building a multiplexed approach to synthesis and analysis, allowing us to test more formulations and extract more information for thorough optimization. In practice, the interaction of the body's immune system and material surfaces is biologically complex. Our recent work highlights this complexity at different time points and motivates the need for materials that can change their regulatory behaviour as the immune system does. Building from expertise in other material applications that respond to cellular stimuli, we will design material compositions that can amplify the release of regulatory targets of our material family when inflammatory cells instructs them too. The proposed research program will draw from diversity in subject areas, skills, and personnel identity to achieve these goals. This will facilitate effective skill development for highly qualified personnel (HQP) in natural science and engineering; trainees will engage in multiple techniques that cross polymer development, data analysis, and harnessing the tools of immunology to build biomaterials. The interdisciplinary nature of the research team will translate well to the critical thinking required in emerging areas of biotechnology. The combination of proposed research goals, and a collaborate team of HQP, will potentiate translation of this Discovery research in material design, enabling next-generation degradable medical devices. By providing a strong foundation to future commercialization of medical devices based on new polymers, this program supports Canada's position as a consistent innovator in medical device technologies.

合成聚合物材料提供优化的性能，使各种医疗器械技术成为可能。虽然这些设备是医学进步的基础，但其临床应用充满了挑战：患者经常遇到需要后续治疗、设备移除和持续治疗的不良副作用。其中许多是由与材料组成相关的炎症引起的，这突出了对新型聚合物开发的需求，这些聚合物可以提供对不期望的免疫细胞行为的内在控制。拟议的研究计划将满足这一需求，从生物学中获得灵感，建立一个可降解聚合物材料家族，可以提供有效的炎症调节剂。我们的实验室最近通过将身体固有调节系统的分子直接构建到可降解聚合物主链中来开发免疫调节材料，展示了在随时间推移而分解的材料中提供调节构件的实用性。根据我们在可降解聚酯材料方面的专业知识，我们将应用这种方法来构建材料家族，其灵感来自于稳定的小分子细胞，用于在多种细胞类型中自我调节炎症。使用这些分子，我们将产生一个库的调节聚合物与实用程序在不同的生物材料应用。这将通过建立一个多路复用的合成和分析方法来实现，使我们能够测试更多的配方，并提取更多的信息进行彻底的优化。在实践中，人体免疫系统和材料表面的相互作用在生物学上是复杂的。我们最近的工作在不同的时间点强调了这种复杂性，并激发了对能够像免疫系统那样改变其调节行为的材料的需求。基于对细胞刺激做出反应的其他材料应用的专业知识，我们将设计材料组合物，当炎症细胞也指示它们时，这些材料组合物可以放大我们材料家族的调节靶点的释放。拟议的研究计划将借鉴学科领域，技能和人员身份的多样性，以实现这些目标。这将促进自然科学和工程领域高素质人员（HQP）的有效技能发展;学员将参与跨聚合物开发，数据分析和利用免疫学工具构建生物材料的多种技术。研究团队的跨学科性质将很好地转化为新兴生物技术领域所需的批判性思维。拟议的研究目标和HQP的合作团队的结合将加强探索研究在材料设计中的转化，使下一代可降解医疗器械成为可能。通过为基于新聚合物的医疗器械的未来商业化提供坚实的基础，该计划支持加拿大作为医疗器械技术持续创新者的地位。