Augmented Injury due to Autologous Inflammatory Attack

自体炎症发作导致损伤加重

• 批准号: 7925675
• 负责人: FRANCIS D MOORE
• 金额: $ 200.33万
• 依托单位: BRIGHAM AND WOMEN'S HOSPITAL
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7925675
• 关键词: Augmented; Injury; due; Autologous; Inflammatory

This proposal represents a continuing highly integrated examination of the mechanism by which injured tissue elicits a response from the host and the harmful effects of this response. Data derived from our past studies of the antibody-complement-mast cell pro-inflammatory response system suggests that, in model reperfusion injuries and model burns, this linked system causes more tissue loss than the original insult itself. Accordingly, interference with antibody-binding or complement activation or mast cell activation has produced a diminution in the extent of final injury. Thus, we hypothesize that major injury is critically exacerbated by the autologous inflammatory response. We wish to understand, in detail, (1) the exact sequence from injury antigen expression to necrosis; (2) whether natural IgM is a critical component; (3) how murine injury might parallel events in human; and (4) how to synthesize these findings into an effective therapeutic strategy to reduce the adverse effects of human injury. The Trauma Center Core (Project 1) will provide administrative support for these projects as well as provide financial support for consistent animal experiments and development of novel murine stains. Project 2 and 4 propose to study common mechanisms shared by mice and humans. Project 3 seeks to discover the exact mechanism of mast cell activation and mast cell-dependent tissue loss. By this funding mechanism, we wish to efficiently, and by multiple techniques, arrive at specific therapy for reperfusion injury and thermal burns. Successful therapy both lessens the ensuing disability from the local wound and may lessen the systemic impact by reductions in shock and secondary injury in response to systemic inflammation.

该提案代表了对受损组织引起宿主反应的机制以及这种反应的有害影响的持续高度综合的研究。我们过去对抗体-补体-肥大细胞促炎症反应系统的研究得出的数据表明，在再灌注损伤模型和烧伤模型中，这种相关系统比原始损伤本身造成更多的组织损失。因此，干扰抗体结合或补体激活或肥大细胞激活已导致最终损伤程度的减小。因此，我们假设自体炎症反应严重加剧了重大损伤。我们希望详细了解：（1）从损伤抗原表达到坏死的确切顺序； (2)天然IgM是否是关键成分； (3) 小鼠损伤如何与人类事件相似； （4）如何将这些发现综合成有效的治疗策略，以减少人体伤害的不利影响。 创伤中心核心（项目 1）将为这些项目提供行政支持，并为一致的动物实验和新型鼠染色剂的开发提供财政支持。项目 2 和 4 提议研究小鼠和人类共有的共同机制。项目 3 旨在发现肥大细胞激活和肥大细胞依赖性组织损失的确切机制。 通过这种资助机制，我们希望通过多种技术有效地实现再灌注损伤和热烧伤的特异性治疗。成功的治疗不仅可以减轻局部伤口造成的残疾，还可以通过减少响应全身炎症的休克和继发性损伤来减轻全身影响。