Plasmonic nanoparticle-mediated immunotherapy to treat metastatic cancer
Plasmonic nanoparticle-mediated immunotherapy to treat metastatic cancer
批准号:
9916759
负责人:
Brant Allen Inman
金额:
$53.22万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2019
资助国家:
美国
项目状态:
已结题
起止时间:
2019-05-01 至 2023-01-31
关键词:
AblationAcuteAge-YearsAmericanAnimalsBiodistributionBiologicalBiophotonicsBladderBladder TissueCancer ModelCancer PatientCause of DeathCessation of lifeChronicClinicalClinical TrialsCombined Modality TherapyComplementary therapiesCystoscopyDisseminated Malignant NeoplasmDistantEffectivenessElectromagnetic EnergyElectromagnetic FieldsEstersFDA approvedFailureFluorescenceFormulationFractionationFutureGenerationsGeometryGoalsGoldHeat shock proteinsHumanImageImmune checkpoint inhibitorImmune responseImmunizeImmunocompetentImmunohistochemistryImmunophenotypingImmunotherapyImpairmentIndividualInductively Coupled Plasma Mass SpectrometryInjectionsIntravenousKDR geneLasersLengthLesionLeukocytesLifeLigand BindingLigandsLightMalignant NeoplasmsMalignant neoplasm of urinary bladderMapsMediatingMethodsModalityMorbidity - disease rateMusNanotechnologyNeoplasm MetastasisOperative Surgical ProceduresOpticsPD-1/PD-L1PatientsPenetrationPermeabilityPhotonsPhototherapyPositron-Emission TomographyProcessPropertyQuality of lifeRadical CystectomyRecurrenceRegimenReporterResearchResearch ProposalsStructureSulfhydryl CompoundsSurfaceT-Cell ReceptorTechnologyTestingTherapeuticTimeToxic effectTransgenic OrganismsTreatment CostTreatment EfficacyTreatment ProtocolsTumor BurdenVaccinesWomanWorkabsorptionanti-PD-1anti-canceranti-tumor immune responsebasebioaccumulationbiomaterial compatibilitycancer cellcancer imagingcancer recurrencechemotherapyclinical translationcytokinedosimetryeffectiveness evaluationimmune activationimmune checkpointimmune checkpoint blockadeimmune resistanceimmunogenicimprovedin vivoindividualized medicineinnovationmenmortalitymouse modelmultimodalitynanoGoldnanoparticlenanoplasmonicnanotherapynew technologynext generationnovelnovel drug classnovel therapeuticsphantom modelphotothermal therapyplasmonicspreventprogrammed cell death ligand 1programmed cell death protein 1real time monitoringresistance mechanismresponsesynergismtreatment optimizationtumortumor ablation
中文摘要
膀胱癌(BC)是男性中第4大常见癌症,女性中第11大常见癌症。BC
在所有癌症中,它的每名患者的终生治疗费用最高,主要是因为它的高复发率。
此外,定期侵入性膀胱镜检查和随后的复发性手术治疗损害了患者的质量
并导致严重的发病率。 因此,临床上显然需要新技术,
有效治疗BC,最终减少肿瘤复发、治疗费用、根治性细胞切除术次数,
and mortality. 金纳米颗粒(gold nanoparticles,GNP)是一种很有前途的癌症治疗平台。 以
由于金的高生物相容性,GNP可以静脉注射,并优先在体内蓄积。
由于增强的渗透性和滞留作用,癌细胞的细胞内的细胞 在GNP平台中,金纳米星
(GNS)由于独特的星星-星形几何形状,
光吸收和由于等离子体效应而有效地转换成热。这种光热过程可以
可用于特异性消融肿瘤,重要的是,可用于增强抗肿瘤免疫反应,
癌细胞的高免疫原性热死亡。与此相关,许多癌症利用免疫检查点-
例如程序性细胞死亡1(PD-1)与其配体(PD-IL 1)之间的相互作用--以逃避抗病毒,
癌症免疫反应最近的免疫疗法使这种免疫抵抗机制失效,
令人鼓舞的临床结果,是FDA批准在不列颠哥伦比亚省,但不提供一个永久治愈大多数患者。
因此,我们建议开发GNS技术用于协同免疫光热
纳米疗法(SYMPHONY),一种整合纳米技术、生物光子学和
免疫疗法 该建议的中心假设是,结合GNS-β介导的光热
纳米疗法与PD-IL 1/PD-IL 1免疫检查点阻断将导致显著的治疗协同作用,
治疗癌症转移。 这一假设的基本原理是,光热疗法不仅可以减少肿瘤,
通过直接基于热消融的免疫系统,
PD-β 1/PD-β L1免疫检查点阻断。具体目标是:(1)光学性质的制备和调制
下一代等离子体激元GNS,以最大限度地提高深部肿瘤的光热治疗;
功能化GNS以安全地改善体内BC靶向;(3)评估SYMPHONY的有效性
用于在鼠模型中治疗BC的疗法。 我们的研究计划旨在证明,
纳米颗粒疗法和免疫疗法可以协同组合以产生抗肿瘤系统性药物组合物,
反应远远上级单独的单一疗法。我们还将证明,SYMPHONY触发了一个极端的
有效的全身反应,治愈原发性和远处病变,产生“疫苗”效应,
未来的BC循环。 拟议的工作将为SYMPHONY未来的快速临床翻译奠定基础
提高BC患者的生活质量,降低死亡率。
英文摘要
Bladder cancer (BC) is the 4th most common cancer in men and the 11th most common in women. BC
has the highest lifetime per-patient treatment cost of all cancers, mainly because of its high recurrence rate.
Also, regular invasive cystoscopy and the subsequent surgical treatment of recurrences impair patient quality
of life and cause significant morbidity. Therefore, there is a clear clinical need for novel technologies to
effectively treat BC, ultimately reducing tumor recurrences, treatment costs, number of radical cystectomies,
and mortality. A promising therapeutic platform for cancer is offered by gold nanoparticles (GNP). Taking
advantage of gold’s high biocompatibility, GNP can be injected intravenously and accumulate preferentially in
cancer cells due to the enhanced permeability and retention effect. Among GNP platforms, gold nanostars
(GNS) have great therapeutic potential due to the unique star-shaped geometry that dramatically enhances
light absorption and effective conversion into heat due to the plasmonic effect. This photothermal process can
be exploited to specifically ablate tumors and, importantly, to amplify the anti-tumor immune response following
the highly immunogenic thermal death of cancer cells. Relatedly, many cancers exploit immune checkpoints –
such as the interaction between programmed cell death 1 (PD-1) and its ligand (PD-L1) – to evade the anti-
cancer immune response. Recent immunotherapies disabling this immune resistance mechanism have shown
encouraging clinical results, are FDA approved in BC, but do not offer a permanent cure for most patients.
We thus propose to develop the GNS technology for use in SYnergistic iMmuno PHOtothermal
NanotherapY (SYMPHONY), a novel therapy that integrates nanotechnology, biophotonics, and
immunotherapy. The central hypothesis of this proposal is that combining GNS-mediated photothermal
nanotherapy with PD-1/PD-L1 immune checkpoint blockade will result in dramatic therapeutic synergism to
treat cancer metastasis. The rationale for this hypothesis is that photothermal therapy not only reduces tumor
burden by direct heat-based ablation, but also causes intense immune responses that can be amplified with
PD-1/PD-L1 immune checkpoint blockade. The specific aims are: (1) Fabricate and modulate optical properties
of next-generation plasmonics GNS to maximize photothermal therapy of deep tumors;; (2) Coat and
functionalize GNS to safely improve in vivo BC targeting;; and (3) Evaluate effectiveness of SYMPHONY
therapy for treating BC in murine models. The results of our research proposal intends to prove that
nanoparticle therapy and immunotherapy can be synergistically combined to produce an antitumor systemic
response far superior to either single therapy alone. We will also prove that SYMPHONY triggers an extremely
potent systemic response that cures both primary and distant lesions, producing a ‘vaccine’ effect to prevent
future BC recurrences. The proposed work will set the stage for SYMPHONY’s rapid future clinical translation
to improve life quality and reduce mortality of BC patients.
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