权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Enhanced Bone Healing Around Implants by Transplanted NF-kB Driven Immunomodulating MSCs

通过移植 NF-kB 驱动的免疫调节 MSC 增强植入物周围的骨愈合

基本信息

批准号：
10222569
负责人：
STUART B GOODMAN
金额：
$ 33.52万
依托单位：
STANFORD UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
2012
资助国家：
美国
起止时间：
2012-09-15 至 2023-01-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10222569
关键词：
Acute Age Aging Animals Anti-Inflammatory Agents Biological Assay Bone Density Bone Diseases Bone Marrow Bone remodeling CMV promoter Cells Chronic Coculture Techniques Custom Disease Elderly Environment Exposure to Female Fluorescence Grant Immune Implant Inflammation Inflammatory Infusion procedures Interleukin-4 Lentivirus Vector Lipopolysaccharides Luciferases Medical Device Mesenchymal Differentiation Mesenchymal Stem Cell Transplantation Mesenchymal Stem Cells Modeling Molecular Mus NF-kappa B Orthopedics Osseointegration Osteoclasts Osteogenesis Osteolysis Outcome Phase Phenotype Plasmids Population Process Production Prosthesis Replacement Arthroplasty Reporter Research Signal Transduction Stimulus System TNF gene Therapeutic Effect Tissues Transplantation aged arginase body system bone bone healing bone loss chemokine chronic inflammatory disease clinically relevant cytokine efficacious treatment immunoregulation implantation improved in vivo inflammatory bone loss macrophage male minimally invasive novel osteogenic paracrine particle preconditioning regenerative regenerative tissue sex stem cell therapy stem cells transcription factor translational approach

项目摘要

Acute transient inflammation is crucial for initiation of bone healing, osseointegration of implants, osteogenic differentiation of MSCs, and immunomodulation. However, harmful chronic inflammation and bone loss (osteolysis) are induced by adverse stimuli including wear byproducts from joint replacements (JR). Nuclear Factor kappa B (NF-κB) is a critical transcription factor in both macrophages (mϕ) and MSCs that regulates inflammation, bone formation/remodeling, and aging. We showed that preconditioning MSCs with lipopoly- saccharide (LPS) and tumor necrosis factor-α (TNF-α) to induce acute transient activation of NF-κB synergistically enhances osteogenesis, and modulates mϕ polarization from a pro-inflammatory (M1) to an anti-inflammatory pro-regenerative (M2) phenotype. Furthermore, inhibition of persistent NF-κB signaling using an NF-κB decoy OligoDeoxyNucleotide (ODN) was shown to mitigate inflammatory bone loss. We have genetically modified MSCs to sense NF-κB activation and then increase production of the anti-inflammatory pro-regenerative cytokine IL-4. The purpose of this grant is to accelerate net bone formation and mitigate chronic inflammation and osteolysis via NF-kB driven immunomodulation using preconditioned or genetically modified MSCs transplanted to the local environment. Specific Aim #1a -To define the critical immunomodulatory interactions of preconditioned vs. NF-κB sensing and IL-4 secreting MSCs on mϕ exposed to wear byproducts from orthopaedic implants. Specific Aim #1b - To enhance osteogenesis by using preconditioned vs. NF-κB sensing and IL-4 secreting MSCs in an MSC/mϕ co-culture model exposed to wear byproducts from orthopaedic implants. Specific Aim #2a - To demonstrate the therapeutic effects of transplanted preconditioned MSCs on bone during the acute inflammatory stage (simulating the stage of initial implantation of a prosthesis and osseointegration) using the murine continuous femoral particle infusion model. Specific Aim #2b - To demonstrate the therapeutic effects of preconditioned vs. NF-κB sensing and IL-4 secreting MSCs on net bone formation during the chronic inflammatory stage (simulating established wear particle disease) using the murine continuous femoral particle infusion model. Specific Aim #3 - To demonstrate that the above principles of modulating acute and chronic inflammation are valid irrespective of animal sex (male vs. female mice) or age (young vs. elderly mice) in vivo. We hypothesize that NF-κB preconditioning or NF-κB sensing and IL-4 secreting MSCs will enhance the osteogenic and immunomodulatory signaling of MSCs, enhancing bone formation via crosstalk by mϕ and MSCs. NF-kB driven immunomodulation of MSCs should mitigate particle-induced inflammation, osteoclast activation, and enhance bone formation in young and aged, male and female mice. NF-kB driven immune modulation of MSCs is novel, mechanistic, and directly translational to inflammatory disorders in other organ systems.

急性短暂炎症对于骨愈合、种植体骨整合、成骨作用的启动至关重要 MSC 的分化和免疫调节。然而，有害的慢性炎症和骨质流失（骨溶解）是由不利刺激引起的，包括关节置换术 (JR) 产生的磨损副产品。核因子 kappa B (NF-κB) 是巨噬细胞 (mφ) 和 MSC 中的关键转录因子，可调节炎症、骨形成/重塑和衰老。我们表明，用脂多聚预处理 MSC 糖 (LPS) 和肿瘤坏死因子-α (TNF-α) 诱导 NF-κB 急性瞬时激活协同增强成骨作用，并将 mψ 极化从促炎 (M1) 调节为促炎 (M1) 抗炎促再生（M2）表型。此外，使用 NF-κB 信号传导抑制持续 NF-κB 诱饵寡脱氧核苷酸 (ODN) 被证明可以减轻炎症性骨质流失。我们有转基因 MSC 可以感知 NF-κB 的激活，然后增加抗炎物质的产生促再生细胞因子 IL-4。这笔赠款的目的是加速净骨形成并减轻使用预处理或遗传通过 NF-kB 驱动的免疫调节来调节慢性炎症和骨质溶解改良的间充质干细胞移植到当地环境。具体目标 #1a - 定义预处理与 NF-κB 传感的关键免疫调节相互作用 IL-4 在暴露于骨科植入物磨损副产品的 m 上分泌 MSC。具体目标 #1b - 通过使用预处理与 NF-κB 传感和 IL-4 分泌来增强成骨 MSC/mφ 共培养模型中的 MSC 暴露于骨科植入物的磨损副产品。具体目标#2a - 证明移植的预处理 MSC 对骨的治疗效果在急性炎症阶段（模拟假体初始植入阶段和骨整合）使用小鼠连续股骨颗粒输注模型。具体目标 #2b - 证明预处理与 NF-κB 传感和 IL-4 的治疗效果在慢性炎症阶段分泌 MSC 促进净骨形成（模拟已建立的磨损）颗粒病）使用小鼠连续股骨颗粒输注模型。具体目标#3 - 证明上述调节急性和慢性炎症的原则是无论体内动物性别（雄性小鼠与雌性小鼠）或年龄（年轻小鼠与老年小鼠）如何，该结果均有效。我们假设 NF-κB 预处理或 NF-κB 传感和 IL-4 分泌 MSC 将增强成骨和 MSC 的免疫调节信号，通过 mφ 和 MSC 的串扰增强骨形成。 NF-kB驱动 MSC 的免疫调节应减轻颗粒诱导的炎症、破骨细胞活化，并增强年轻和老年、雄性和雌性小鼠的骨形成。 NF-kB 驱动的 MSC 免疫调节是新颖的，机械性的，并直接转化为其他器官系统的炎症性疾病。

项目成果

期刊论文数量（76）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Innate immunity sensors participating in pathophysiology of joint diseases: a brief overview.

DOI：
10.1615/jlongtermeffmedimplants.2014010825
发表时间：
2014
期刊：
Journal of long-term effects of medical implants
影响因子：
0
作者：
Gallo J;Raska M;Konttinen YT;Nich C;Goodman SB
通讯作者：
Goodman SB

Modulation of mouse macrophage polarization in vitro using IL-4 delivery by osmotic pumps.

DOI：
10.1002/jbm.a.35278
发表时间：
2015-04
期刊：
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
影响因子：
4.9
作者：
Pajarinen, Jukka;Tamaki, Yasunobu;Antonios, Joseph K.;Lin, Tzu-Hua;Sato, Taishi;Yao, Zhenyu;Takagi, Michiaki;Konttinen, Yrjo T.;Goodman, Stuart B.
通讯作者：
Goodman, Stuart B.

Preconditioning of murine mesenchymal stem cells synergistically enhanced immunomodulation and osteogenesis.