Chemoproteomic-Enabled Strategy to Study SLC Transporter Roles in Inflammation
研究 SLC 转运蛋白在炎症中的作用的化学蛋白质组学策略
基本信息
- 批准号:10597482
- 负责人:
- 金额:$ 39.53万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-07-01 至 2026-06-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
PROJECT SUMMARY
The innate immune system is the first line of defense against invading pathogens and intimately collaborates
with the adaptive immune system to maintain physiological homeostasis. However, components of the immune
response can sometimes become dysfunctional, failing in this protective role and even directly causing a variety
of autoimmune diseases. Immune dysfunction arises from an interplay of genetic and environmental factors,
however a mechanistic understanding of the various proteins and pathways that drive these conditions remains
incomplete. In particular, it is known that immune sensors, which are typically dedicated to protection against
infection, are sometimes usurped, and instead initiate and propagate autoimmune diseases such as systemic
lupus erythematosus (SLE) and Crohn’s disease. Specifically, self-induced signaling by nucleic acid-sensing
endosomal Toll-like receptors (TLRs 7 and 9) and the unchecked production of pro-inflammatory cytokines (e.g.
type I interferons;; IFN-I) in plasmacytoid dendritic cells (pDCs) are key events in the pathogenesis of numerous
autoimmune conditions. Thus, compounds that can suppress the production of these cytokines in pDCs would
be clinically useful agents for the treatment of such diseases. Recently, loss-of-function studies of the poorly
characterized endolysosomal solute carrier gene family 15 member 4 (SLC15A4) in lupus mouse models
revealed significantly reduced disease manifestation as well as near complete suppression of TLR7/9-mediated
production of IFN-I and other proinflammatory cytokines. In this application, we have leveraged our lab’s
innovative chemoproteomic fragment-based ligand discovery platform to develop a suite of chemical probes that
engage SLC15A4 in human pDCs, block SLC15A4 mediated transport, and suppress IFN-I production in human
and mouse primary pDCs. We will utilize an interdisciplinary strategy that draws upon the fields of chemical
biology, immunology and mass spectrometry to illuminate how SLC15A4 controls TLR-mediated production of
IFN-I in primary human and mouse immune cells and evaluate pharmacological inhibition in vivo. Specifically,
we will investigate the role of SLC15A4 in regulating endolysosomal homeostasis, map the protein interaction
network of SLC15A4 and broadly characterize pharmacological inhibition of SLC15A4 in immune cells. We will
also evaluate and optimize chemical probes to assess the therapeutic potential of SLC15A4 in mouse models of
lupus. The chemical tools generated, and knowledge gained from these studies are certain to greatly advance
our understanding of SLC15A4 biology and the endolysosomal regulation of TLR signaling, enabling the
identification of novel strategies to treat human autoimmune diseases.
项目总结
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Christopher G Parker其他文献
Christopher G Parker的其他文献
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{{ truncateString('Christopher G Parker', 18)}}的其他基金
Chemoproteomic-Enabled Strategy to Study SLC Transporter Roles in Inflammation
研究 SLC 转运蛋白在炎症中的作用的化学蛋白质组学策略
- 批准号:
10434128 - 财政年份:2021
- 资助金额:
$ 39.53万 - 项目类别:
Chemoproteomic-Enabled Strategy to Study SLC Transporter Roles in Inflammation
研究 SLC 转运蛋白在炎症中的作用的化学蛋白质组学策略
- 批准号:
10298385 - 财政年份:2021
- 资助金额:
$ 39.53万 - 项目类别:
Chemoproteomic-Enabled Strategy to Study SLC Transporter Roles in Inflammation
研究 SLC 转运蛋白在炎症中的作用的化学蛋白质组学策略
- 批准号:
10686379 - 财政年份:2021
- 资助金额:
$ 39.53万 - 项目类别:
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