Lipid Based Self Assembled Materials Synthesis and Characterization

总结 脂质基自组装材料和表征核心（LBSAMCC）的总体目标是 合成、表征和提供用于改善氮的破坏性作用的高度新颖的治疗剂 和硫磺对眼睛（项目1）和皮肤（项目2）的刺激。高密度脂蛋白（HDL）很小 溶解和运输胆固醇和脂质的纳米颗粒在调节先天免疫中是不可或缺的 系统和功能，以提高上皮屏障的完整性。小说的发展和交付 模拟HDL的这些关键功能特征的材料，重要的是，能够靶向适当的细胞， 眼睛和皮肤中的免疫细胞类型（例如先天免疫细胞、角质形成细胞和角质形成细胞）高度区分这一点。 从其他人的平台，以减轻伤害造成的暴力。萨克斯顿实验室率先合成了 HDL样合成生物制剂（HDL NPs），其具有惰性的固体核金纳米颗粒（AuNP），在其上自 HDL的脂质和蛋白质货物的组装可以化学附着。整体尺寸和表面化学性质可以 严格控制，使其类似于天然HDL，从而使这些第一代材料能够定制， 可以加入任何数量的磷脂、甾醇和/或小分子药物（例如siRNA或microRNA）。 Thaxton和Nguyen实验室之间的最近合作进一步证明，第一代的AuNP- 可以用尺寸控制的有机核心（OC）支架替换生成材料， 控制生物功能（例如胆固醇摄取和抗炎），并打开加载的机会 并通过相关疗法（例如维生素D）卸载这些靶向物质的核心。最终， HDL生物制剂为开发针对眼睛和/或皮肤损伤的新疗法提供了巨大的机会， 是由于暴露在辐射下而发生的。LBSAMCC将直接负责合成一套有机化合物， 核心（具体目标1）用作模板以产生具有和不具有小- 分子和脂质缀合的药物，并配制成局部应用于眼睛和皮肤（特定目的2）。 此外，LBSAMCC将有助于对ocHDL进行完整的理化和功能筛选 NP（具体目标3），以便在每个项目中自信地交付和进一步发展。作为 因此，LBSAMCC将递送有效的ocHDL NP以修复对眼睛的化学芥子气损伤， 皮肤这项工作的影响是，严格的方法和逐步的方法将产生有效的局部 用于改善氮和硫对眼睛和皮肤造成的破坏性损伤的治疗方法 芥末。

SUMMARY The overall goal of the Lipid-Based Self-Assembled Materials and Characterization Core (LBSAMCC) is to synthesize, characterize, and deliver highly novel therapeutics for ameliorating the devastating effects of nitrogen and sulfur mustards to the eye (Project 1) and skin (Project 2). High-density lipoproteins (HDL) are small nanoparticles that solubilize and transport cholesterol and lipids, are integral in modulating the innate immune system, and function to enhance the integrity of epithelial barriers. The development and delivery of novel materials that mimic these key functional features of HDLs and, importantly, enable targeting of appropriate cell types (e.g. innate immune cells, keratocytes, and keratinocytes) in the eye and skin, highly differentiate this platform from others to ameliorate injuries caused by mustards. The Thaxton lab pioneered the synthesis of HDL-like synthetic biologics (HDL NPs) with an inert, solid core gold nanoparticle (AuNP) upon which the self- assembly of lipid and protein cargos of HDLs can chemically attach. The overall size and surface chemistry can be strictly controlled to resemble native HDLs enabling these first-generation materials to be tailorable, such that any number of phospholipids, sterols, and/ or small molecule drugs (e.g. siRNA or microRNA) may be added. Recent collaborations between the Thaxton and Nguyen labs further demonstrated that the AuNP of first- generation materials can be swapped out for size-controlling organic core (oc) scaffolds, which can be used to control biological function (e.g. cholesterol uptake and anti-inflammatory) and opens up the opportunity to load and unload the core of these targeted materials with relevant therapies (e.g. vitamin D). Ultimately, synthetic HDL biologics offer a tremendous opportunity for developing novel therapies against eye and/or skin injuries that occur due to exposure to mustards. The LBSAMCC will be directly responsible for synthesizing a suite of organic cores (Specific Aim 1) to be used as templates to produce a library of ocHDL NPs with and without small- molecule and lipid-conjugated drugs and formulated to be topically applied to the eye and skin (Specific Aim 2). Furthermore, the LBSAMCC will facilitate the complete physicochemical and functional screening of the ocHDL NPs (Specific Aim 3) so that they can be confidently delivered and further developed in each of the Projects. As such, the LBSAMCC will deliver effective ocHDL NPs to remediate chemical mustard injuries to the eye and skin. The impact of this work is that a rigorous approach and step-wise method will produce effective topically delivered therapies for ameliorating the devastating injuries caused to the eye and skin by nitrogen and sulfur mustard.