Optimal RNA-based therapeutics for vocal fold injury and fibrosis

针对声带损伤和纤维化的最佳 RNA 疗法

基本信息

批准号：
9274959
负责人：
Ryan Comfort Branski
金额：
$ 48.11万
依托单位：
NEW YORK UNIVERSITY SCHOOL OF MEDICINE
依托单位国家：
美国
项目类别：
财政年份：
2014
资助国家：
美国
起止时间：
2014-06-19 至 2019-05-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9274959
关键词：
Acute Address Affect American Anxiety Asthma Biological Biomechanics Cations Cell Proliferation Cells Chronic Chronic Obstructive Airway Disease Cicatrix Clinic Clinical Clinical Treatment Collagen Complex Data Deposition Development Diffuse Dimensions Direct Costs Disease Distant Environment Etiology Extracellular Matrix Fibroblasts Fibrosis Financial cost Gel Gene Silencing Goals Human In Vitro Incidence Income Injectable Injection of therapeutic agent Injury Intervention Investigation Lamina Propria Lesion Lipids Longevity Maintenance Mediator of activation protein Mental Depression Messenger RNA Metabolism Modeling Nodule Occupational Operative Surgical Procedures Organ Oryctolagus cuniculus Pathway interactions Patients Pharmaceutical Preparations Phenotype Phonation Pliability Population Process Proteins RNA Reagent Research Personnel Role Signal Transduction Signaling Protein Smad Proteins Small Interfering RNA Social Functioning Source Stenosis Techniques Testing Therapeutic Therapeutic Effect Tissues Toxic effect Transcriptional Regulation Transfection Transforming Growth Factors Treatment Protocols Up-Regulation Voice Voice Disorders Work Wound Healing base body system cytotoxicity experience healing improved in vivo injured innovation insight interest migration nanoparticle novel public health relevance regenerative repaired response response to injury stem targeted treatment tissue repair vocal cord vocalis muscle

项目摘要

DESCRIPTION (provided by applicant): The universality of fibrosis as an underlying etiology for many voice disorders stems from the reparative response to injury. To date, treatments have been largely unsatisfactory. Acknowledging that healing is complex, we seek to expand our recent findings elucidating one regulatory mechanism underlying repair in the vocal folds. Specifically, we seek increased insight into the transforming growth factor (TGF)-� signaling cascade. Our preliminary data suggest that targeting this pathway, not TGF-� directly, but rather upstream, to be optimal. Smad3, an upstream cytoplasmic signaling protein provides an ideal target for the use of RNA- based therapeutics, specifically small interfering ribonucleic acid (siRNA). However, delivery of siRNA in vivo is complicated by the inherent proteolytic environment. We hypothesize that lipid nanoparticle delivery will address these issues, delivering optimal drug concentrations with reduced toxicity. This investigation is germane; cumulative estimates regarding the incidence of voice disorders across the lifespan are not known, but are hypothesized to be higher than the 3-9% of the population figure that is often cited. This innovative approach has potential to evolve to the clinic across multiple organ systems.

描述（由适用提供）：纤维化的宇宙作为许多语音疾病的基本病因，从对伤害的赔偿反应步骤。迄今为止，治疗基本上不令人满意。认识到愈合很复杂，我们试图扩大我们最近的发现，阐明了人声折叠中修复的一种调节机制。具体而言，我们寻求对转化生长因子（TGF）信号级联的洞察力的洞察力。我们的初步数据表明，针对这种途径，而不是直接而不是直接的TGF-，而是在上游，是最佳的。 Smad3，一种上游细胞质信号蛋白，为使用基于RNA的治疗，特别是小干扰核糖核酸（siRNA）提供了理想的靶标。但是，体内siRNA的递送因固有的蛋白水解环境而变得复杂。我们假设脂质纳米颗粒的递送将解决这些问题，从而提供最佳的药物浓度，毒性降低。这项投资是隐密的；关于整个寿命的声音障碍发生率的累积估计尚不清楚，但假设高于经常引用的人口数字的3-9％。这种创新的方法有可能在多个器官系统中发展为诊所。