Extracellular matrix regulation of differentiation via modulation of ILK: application to 3D bioprinting of cardiac tissue

通过调节 ILK 进行细胞外基质分化调节:在心脏组织 3D 生物打印中的应用

基本信息

  • 批准号:
    10001078
  • 负责人:
  • 金额:
    $ 45.21万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2017
  • 资助国家:
    美国
  • 起止时间:
    2017-04-01 至 2022-03-31
  • 项目状态:
    已结题

项目摘要

PROJECT SUMMARY The primary objective of this proposal is to couple a) mechanistic insight relating differentiation outcomes to ECM engagement via intracellular signaling events triggered at the focal adhesion (FA), with b) 3D printing of ECM and ECM-associated proteins as a means to direct cell distribution with maturation and thereby enable fabrication of thick, functional cardiac tissue. The proposal is significant as it has the potential to generate replacement tissues and even heart grafts for individuals suffering from acute and chronic injury to the heart. It is the first of its kind to address the conundrum of the apparent uniformity of the focal adhesion relative to the myriad of different ECM/integrin combinations and the corresponding variety of cell behaviors that emerge from ECM engagement. It does so by proposing that elements of the FA, namely integrin linked kinase (ILK) and associated phosphatase, act as sensitive rheostats that can be co-opted to yield desired behavior. Here, the desired behavior is cardiac differentiation, and the innovation is the utilization of optimized ECM formulations as bioinks to create 3D cardiac tissue mimics (3DCTM) capable of directing cell distribution of multiple cell types with differentiation. This concept is feasible as the Ogle laboratory has long-studied the biochemistry of the ECM and stem cell behaviors associated with ECM engagement, and the McAlpine laboratory has focused on 3D printing of functional materials for a range of applications, from biological to electronic and the merger of these materials. These groups will also interface with expertise of the Kamp lab with respect to their recent generation of induced cardiac progenitor cells (iCPCs) to populate the 3DCTM, the Provenzano lab to assist with molecular mechanisms associated with FA formation, the Garry lab to assist with bioreactor implementation, the Zhang lab to add cardiovascular physiology expertise, and the Talkachova lab to assist with optical imaging to assess function of the 3DCTM and core facilities for mass spectrometry of ECM components and gene editing tools for modulating ILK activity. Together, this expertise will be funneled toward meeting the primary objective of the proposal via the following aims: 1) determine whether activation of integrin-linked kinase (ILK) of focal adhesions or costameres couples integrin activation to β-catenin activation via GSK3β to enable expression of genes associated with cardiomyocyte specification, 2) use 3D ECM-based model systems to identify ECM formulations supportive of endothelial differentiation and assess ILK dependence, and 3) use ECM-based 3D printing to modulate differentiation of cardiac cell types spatially in a cardiac tissue mimic. The motivation for this concept was based on extensive literature search, and results from our own experimentation; the approach was designed to insure that the interpretations of the results are subject to minimal bias and the hypotheses posed are truly tested.
项目摘要 该提案的主要目的是将a)与分化结果与 通过在焦点粘附(FA)触发的细胞内信号事件(FA)中参与ECM,b)3D打印 ECM和ECM相关蛋白作为成熟的细胞分布的一种手段,从而使 制造厚的功能性心脏组织。该提案很重要,因为它有可能产生 对患有急性和慢性损伤的人的替代组织,甚至是心脏移植。它 是第一个解决焦点粘合剂明显均匀性的难题 无数不同的ECM/整合素组合以及从中出现的相应各种细胞行为 ECM参与。它通过提出FA的元素,即整联蛋白连接激酶(ILK)和 相关的磷酸酶充当敏感的风湿病,可以选择产生所需的行为。在这里, 所需的行为是心脏差异,创新是优化的ECM公式的利用 随着生物学创建3D心脏组织模拟(3DCTM),能够指导多个细胞的细胞分布 具有差异化的类型。这个概念是可行的,因为Ogle实验室已长期研究了 与ECM参与相关的ECM和干细胞行为,McAlpine实验室已集中 从生物学到电子的一系列应用,对功能材料的3D打印以及合并 这些材料。这些小组还将与坎普实验室的专家有关 产生诱导的心脏祖细胞(ICPC)以填充3DCTM,即Provenzano实验室以协助 通过与FA形成相关的分子机制,Garry Lab可以协助生物反应器 实施,Zhang实验室以增加心血管生理学专业知识和Talkachova实验室以协助 使用光学成像来评估ECM质谱的3DCTM和核心设施的功能 组件和基因编辑工具用于调节ILK活动。在一起,这种专业知识将被融入 通过以下目的实现提案的主要目标:1)确定是否激活 焦点粘合剂或服装的整合素连接激酶(ILK)伴侣整联蛋白激活β-catenin激活 通过GSK3β启用与心肌细胞规范相关的基因表达,2)使用基于3D ECM的基因 识别支持内皮分化和评估的ECM公式的模型系统 依赖性和3)使用基于ECM的3D打印来在空间上调节心脏细胞类型的分化 心脏组织模仿。这个概念的动机是基于广泛的文献搜索和结果 根据我们自己的实验;该方法旨在确保结果的解释是 受到最小偏见和提出的假设的影响。

项目成果

期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Implementing Biological Pacemakers: Design Criteria for Successful.
Laminin 411 mediates endothelial specification via multiple signaling axes that converge on β-catenin.
  • DOI:
    10.1016/j.stemcr.2022.01.005
  • 发表时间:
    2022-03-08
  • 期刊:
  • 影响因子:
    5.9
  • 作者:
    Hall, Mikayla L.;Givens, Sophie;Santosh, Natasha;Iacovino, Michelina;Kyba, Michael;Ogle, Brenda M.
  • 通讯作者:
    Ogle, Brenda M.
Kinases of the Focal Adhesion Complex Contribute to Cardiomyocyte Specification.
Body builder: from synthetic cells to engineered tissues.
  • DOI:
    10.1016/j.ceb.2018.04.010
  • 发表时间:
    2018-10
  • 期刊:
  • 影响因子:
    7.5
  • 作者:
    Hu S;Ogle BM;Cheng K
  • 通讯作者:
    Cheng K
A novel perfusion bioreactor promotes the expansion of pluripotent stem cells in a 3D-bioprinted tissue chamber.
  • DOI:
    10.1088/1758-5090/ad084a
  • 发表时间:
    2023-11-10
  • 期刊:
  • 影响因子:
    9
  • 作者:
    Komosa, Elizabeth R.;Lin, Wei-Han;Mahadik, Bhushan;Bazzi, Marisa S.;Townsend, DeWayne;Fisher, John P.;Ogle, Brenda M.
  • 通讯作者:
    Ogle, Brenda M.
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Michael McAlpine其他文献

Michael McAlpine的其他文献

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{{ truncateString('Michael McAlpine', 18)}}的其他基金

Extracellular matrix regulation of differentiation via modulation of ILK: application to 3D bioprinting of cardiac tissue
通过调节 ILK 进行细胞外基质分化调节:在心脏组织 3D 生物打印中的应用
  • 批准号:
    9301966
  • 财政年份:
    2017
  • 资助金额:
    $ 45.21万
  • 项目类别:
3D Printed Nano-Bionic Organs
3D打印纳米仿生器官
  • 批准号:
    9063925
  • 财政年份:
    2015
  • 资助金额:
    $ 45.21万
  • 项目类别:
3D Printed Nano-Bionic Organs
3D打印纳米仿生器官
  • 批准号:
    9459522
  • 财政年份:
    2015
  • 资助金额:
    $ 45.21万
  • 项目类别:
3D Printed Nano-Bionic Organs
3D打印纳米仿生器官
  • 批准号:
    8742786
  • 财政年份:
    2014
  • 资助金额:
    $ 45.21万
  • 项目类别:

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