KSHV microRNAs in tumor invasion and angiogenesis
KSHV microRNA 在肿瘤侵袭和血管生成中的作用
基本信息
- 批准号:9906178
- 负责人:
- 金额:$ 18.97万
- 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:2017-03-03 至 2022-02-28
- 项目状态:已结题
- 来源:
- 关键词:Acquired Immunodeficiency SyndromeBindingCellsChinaClinical TrialsCoupledDevelopmentEtiologyFundingG protein coupled receptor kinaseGenomeGlutamic AcidGoalsHerpesviridae InfectionsHighly Active Antiretroviral TherapyHumanHuman Herpesvirus 8IndividualKaposi SarcomaLaboratoriesMalignant - descriptorMalignant NeoplasmsMediatingMesenchymal Stem CellsMicroRNAsModelingMolecularMorbidity - disease rateMulticentric Angiofollicular Lymphoid HyperplasiaMutagenesisMutateOrganPathologicPathway interactionsPatientsPhosphotransferasesPreventionProteinsProto-Oncogene Proteins c-aktRoleSH3 DomainsSTAT3 geneSignal TransductionSiteSocietiesTherapeuticTimeTumor AngiogenesisTumor Cell InvasionViralVisceralangiogenesiscellular targetinginhibitor/antagonistinnovationinsightmortalitynovelnovel therapeutic interventionoverexpressionprimary effusion lymphomaprogramsreceptortherapeutic targettumortumorigenesis
项目摘要
Kaposi’s sarcoma-associated herpesvirus (KSHV) is the etiologic agent of several cancers. Despite highly
active anti-retroviral therapy, Kaposi’s sarcoma (KS) remains as a dominant cancer in AIDS patients. The
hallmark pathological features of KS are excessive deregulation of angiogenesis and extreme invasiveness
manifested as multifocal tumors and involvement of visceral organs. Thus, understanding the molecular basis
of KSHV-induced angiogenesis and cell invasion could serve as the basis for developing novel therapeutic
approaches. Our US-China collaborative team funded by previous cycle of the US-China Program has made
significant progresses toward this goal by 1) developing a novel model of KSHV infection of human primary
mesenchymal stem cells (MSCs), in which KSHV induces angiogenesis, cell invasion, malignant
transformation and tumorigenesis closely mimicking human KS tumors;; 2) demonstrating the essential roles of
KSHV microRNAs (miRNAs) in KSHV-induced angiogenesis and cell invasion;; 3) identifying KSHV miR-K6-3p
as a pro-angiogenic miRNA that induces angiogenesis by targeting SH3 domain-binding glutamic acid-rich
protein (SH3BGR) to activate the STAT3 pathway;; and 4) demonstrating that KSHV miR-K3-5p promotes cell
invasion by targeting G-protein coupled receptor kinase 2 (GRK2) to activate the AKT signaling. We propose to
extend these exciting discoveries with the objective to further dissect the molecular mechanisms by which
KSHV miRNAs promote tumorigenesis by inducing angiogenesis and cell invasion, and to explore the
therapeutic application of these discoveries. The central hypothesis is that KSHV encodes specific miRNAs
to activate angiogenic and invasive pathways contributing to KSHV-induced tumorigenesis, and as a result,
targeting these pathways can effectively inhibit the development of KSHV-induced cancers. We will identify
KSHV miRNAs that mediate KSHV-induced angiogenesis and define the mechanisms of action (Aim 1);;
identify KSHV miRNAs that mediate KSHV-induced cell invasion and define the mechanisms of action (Aim 2);;
delineate the roles of pro-angiogenic and pro-invasive miRNAs in the development of tumors, and in tumor
angiogenesis and invasion (Aim 3);; and explore the therapeutic application of targeting angiogenic and
invasive pathways activated by KSHV miRNAs in KSHV-induced tumorigenesis (Aim 4). This application will
further reinforce the collaborative efforts of the two US and China teams with highly complementary expertise
to accelerate the advancements of the proposed project that are otherwise difficult to achieve by the individual
laboratories. The results from this project will be highly significant and innovative because they will, for the
first time, define the functions and mechanisms of action of KSHV miRNAs in tumor angiogenesis and invasion
in a genuine KS model, and identify novel targets for developing innovative therapeutic approaches. The study
will also establish a novel paradigm of oncogenesis mediated by viral subversion of the miRNA pathway, thus
providing insights into the oncogenesis of other cancers.
卡波西(Kaposi)的肉瘤相关疱疹病毒(KSHV)是几种癌症的病因学剂。尽管很高
Kaposi的肉瘤(KS)活跃的抗逆转录病毒疗法仍然是艾滋病患者的主要癌症。这
KS的标志性病理特征是血管生成和极端侵入性的更多放松管制
表现为多灶性肿瘤和内脏器官的参与。这是理解分子巴西的
KSHV诱导的血管生成和细胞侵袭可以作为开发新疗法的基础
方法。由美国 - 中国计划的上一个周期资助的我们的美国 - 中国合作团队已提出
通过1)开发一种新型人类主要的KSHV感染模型来实现这一目标的重大进展
间充质干细胞(MSC),其中KSHV诱导血管生成,细胞浸润,恶性肿瘤
转化和肿瘤发生紧密模仿人类KS肿瘤; 2)证明
KSHV诱导的血管生成和细胞侵袭中的KSHV microRNA(miRNA); 3)识别KSHV mir-k6-3p
作为一种促血管生成miRNA,通过靶向富含SH3域结合谷氨酸的诱导血管生成
蛋白质(SH3BGR)激活STAT3途径;; 4)证明KSHV miR-k3-5p促进细胞
通过靶向G蛋白耦合受体激酶2(GRK2)来激活AKT信号传导来侵袭。我们建议
扩展这些令人兴奋的发现,以进一步剖析分子机制
KSHV miRNA通过诱导血管生成和细胞侵袭来促进肿瘤发生,并探索
这些发现的治疗应用。中心假设是KSHV编码特定的miRNA
激活有助于KSHV诱导的肿瘤发生的血管生成和侵入性途径,结果
靶向这些途径可以有效抑制KSHV诱导的癌症的发展。我们将确定
KSHV miRNA介导KSHV诱导的血管生成并定义了作用机理(AIM 1);;
确定介导KSHV诱导的细胞侵袭并定义作用机理的KSHV miRNA(AIM 2);
描述亲血管生成和促侵入性miRNA在肿瘤发展中的作用,在肿瘤中的作用
血管生成和入侵(AIM 3);;并探索靶向血管生成和
KSHV miRNA在KSHV诱导的肿瘤发生中激活的侵入性途径(AIM 4)。此应用程序将
进一步加强了具有高度完善的专业知识的美国和中国团队的合作努力
加快拟议项目的进步,这些项目原本很难实现
实验室。该项目的结果将是非常重要和创新的,因为它们将
第一次定义KSHV miRNA在肿瘤血管生成和侵袭中的作用和机制
在真正的KS模型中,并确定了开发创新治疗方法的新颖目标。研究
还将建立一个由miRNA途径的病毒颠倒介导的新型肿瘤发生范式,因此
提供有关其他癌症的肿瘤发生的见解。
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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Shou-Jiang Gao其他文献
Shou-Jiang Gao的其他文献
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{{ truncateString('Shou-Jiang Gao', 18)}}的其他基金
Citrulline-urea cycle in KSHV cellular transformation
KSHV 细胞转化中的瓜氨酸-尿素循环
- 批准号:
10634838 - 财政年份:2023
- 资助金额:
$ 18.97万 - 项目类别:
Impact of microbiota on AIDS-Kaposi’s sarcoma development and therapy
微生物群对艾滋病-卡波西肉瘤发展和治疗的影响
- 批准号:
10753890 - 财政年份:2023
- 资助金额:
$ 18.97万 - 项目类别:
Regulation of KSHV replication by N6-methyladenosine (m6A) - Diversity Supplement
N6-甲基腺苷 (m6A) 对 KSHV 复制的调节 - Diversity Supplement
- 批准号:
10533427 - 财政年份:2022
- 资助金额:
$ 18.97万 - 项目类别:
HISTONE MODIFIERS IN ORAL KSHV INFECTION AND MALIGNANCIES
口腔 KSHV 感染和恶性肿瘤中的组蛋白修饰剂
- 批准号:
9756364 - 财政年份:2018
- 资助金额:
$ 18.97万 - 项目类别:
KSHV microRNAs in tumor invasion and angiogenesis
KSHV microRNA 在肿瘤侵袭和血管生成中的作用
- 批准号:
10264784 - 财政年份:2017
- 资助金额:
$ 18.97万 - 项目类别:
KSHV microRNAs in tumor invasion and angiogenesis
KSHV microRNA 在肿瘤侵袭和血管生成中的作用
- 批准号:
9243868 - 财政年份:2017
- 资助金额:
$ 18.97万 - 项目类别:
Targeting KSHV malignancies and persistent infection
针对 KSHV 恶性肿瘤和持续感染
- 批准号:
8943348 - 财政年份:2015
- 资助金额:
$ 18.97万 - 项目类别:
HISTONE MODIFIERS IN ORAL KSHV INFECTION AND MALIGNANCIES
口腔 KSHV 感染和恶性肿瘤中的组蛋白修饰剂
- 批准号:
9257374 - 财政年份:2015
- 资助金额:
$ 18.97万 - 项目类别:
HISTONE MODIFIERS IN ORAL KSHV INFECTION AND MALIGNANCIES
口腔 KSHV 感染和恶性肿瘤中的组蛋白修饰剂
- 批准号:
9108377 - 财政年份:2015
- 资助金额:
$ 18.97万 - 项目类别:
KSHV microRNAs in cellular transformation and tumorigenesis
KSHV microRNA 在细胞转化和肿瘤发生中的作用
- 批准号:
8728172 - 财政年份:2013
- 资助金额:
$ 18.97万 - 项目类别:
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