课题基金 / 基金详情

Targeted therapy to reverse TLR4/DLL4 dysregulation in diabetic wounds

Targeted therapy to reverse TLR4/DLL4 dysregulation in diabetic wounds
逆转糖尿病伤口中 TLR4/DLL4 失调的靶向治疗
批准号:
10065265
负责人:
Christopher Onoruoiza Audu
金额:
$9.19万
依托单位国家:
美国
项目类别:
财政年份:
2020
资助国家:
美国
项目状态:
已结题
起止时间:
2020-07-01 至 2022-06-30

项目摘要

项目成果

Christopher Onoruoiza Audu的其他基金

相似基金

相关文献

中文摘要
翻译
项目总结/文摘
英文摘要
PROJECT SUMMARY/ABSTRACT Non-healing wounds in patients with Type 2 Diabetes (T2D) are a major cause of morbidity and mortality and are increasing at an alarming rate. Failure of wound healing in T2D patients represents the most common cause of amputation in the US with a 5-year mortality rate of nearly 50%. Thus, a critical need exists for understanding the wound healing defects in T2D in order to develop targeted therapies. Published data from our lab and my new preliminary data has identified that TLR4 signaling in diabetic wound macrophages upregulates the Notch ligand, DLL4, and promotes inflammation in acute wounds. Further, in diabetic wound macrophages, the TLR4/DLL4 pathway is upregulated secondary to an epigenetic mechanism whereby increased MLL1, a histone methyltransferase, on the Tlr4 promoter promotes increased TLR4 signaling. This increased TLR4 signaling (via MyD88) upregulates DLL4 in diabetic wound Mφs and drives inflammation and pathologic healing in diabetes. Our proposed studies will establish that TLR4 is epigenetically upregulated via an MLL1-mediated mechanism in diabetic wound macrophages and directly regulates DLL4 expression. These results have led to our hypothesis that increased TLR4 signaling in diabetic wound macrophages increases DLL4 which promotes chronic inflammation and non-healing in diabetic wounds. Our data suggest that diabetic wound repair may be improved via locally-targeted treatment with TLR4 inhibitor(s) and/or MLL1 inhibitor(s). To test our hypotheses, we will pursue the following Aims: Aim 1: To examine the TLR4-dependent regulation of DLL4 in diabetic wound macrophages in acute and chronic diabetic murine wound models. Aim 2: To determine if local therapeutic blockade of TLR4 or MLL1 improves diabetic wound repair in acute and chronic murine wound models.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Targeted therapy to reverse TLR4/DLL4 dysregulation in diabetic wounds
  • 批准号:
    10190764
  • 项目类别:
  • 资助金额:
    $9.56万
  • 财政年份:
    2020
  • 负责人:
    Christopher Onoruoiza Audu
  • 依托单位:
海外基金