Mechanism and Uses of Transmembrane Helix Insertion by Soluble Peptides
可溶性肽跨膜螺旋插入的机制和用途
基本信息
- 批准号:10586116
- 负责人:
- 金额:$ 58.28万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-05-15 至 2025-01-31
- 项目状态:未结题
- 来源:
- 关键词:AcidityAlgorithmsAmanitinsAntibodiesAntibody-drug conjugatesAreaBasic ScienceBioinformaticsBiological MarkersBreast Cancer PatientC-terminalCell surfaceCellsChemicalsClinical TrialsCompensationComputer ModelsCrosslinkerCyclic PeptidesDNAData SetDatabasesDevelopmentDiagnosisDiseaseExcipientsFluorescent DyesGoalsGrantHandHydrophobicityImage-Guided SurgeryKineticsLearningLengthLinkLipidsMalignant neoplasm of urinary bladderMeasuresMediatingMedicineMembraneMemorial Sloan-Kettering Cancer CenterMethodsModelingModernizationMolecularOperative Surgical ProceduresOutcomePeptidesPerfusionPeriodicityPermeabilityPharmaceutical PreparationsPhasePhase I Clinical TrialsPositron-Emission TomographyPropertyPublishingRNA Polymerase IIRNA Polymerase InhibitorResearchResistanceSolubilityStructureTestingTherapeuticTherapeutic AgentsTherapeutic EffectTherapeutic StudiesToxinTubulinTumor MarkersVariantVesicleWorkbiophysical techniquescancer cellcancer imagingclinical applicationdesignexpectationfluorescence imagingfluorescence-guided surgeryimaging agentin vivoinsightiterative designmodel designmolecular dynamicsneoplastic cellnon-drugnovelnovel diagnosticsnuclear imagingpH gradientpolypeptideprotein aminoacid sequenceside effecttargeted agenttargeted deliverytargeted imagingtargeted treatmenttreatment strategytumor
项目摘要
PROJECT SUMMARY/ABSTRACT
The understanding we now have of the pHLIPs (pH-Low Insertion Peptides) enables the design of novel, pH-
sensitive targeting agents that use the acidity of tumor cell surfaces as a biomarker. The work supported by
this grant has already yielded a new diagnostic nuclear imaging agent (PET-pHLIP) and a new fluorescent
imaging agent for image-guided surgical interventions (ICG-pHLIP), which are advancing to clinical trials at
Memorial Sloan Kettering Cancer Center in 2019.
The primary focus of this continuation is to enable targeted intracellular delivery of polar and moderately
hydrophobic therapeutic molecules. We propose a systematic approach using representative cargoes from 3
classes of therapeutic molecules that possess different physical, chemical and functional properties: i) a
moderately hydrophobic, sparingly cell-permeable, small drug molecule: mertansine;; ii) a moderately polar,
cell-impermeable, cyclic, rigid, larger drug: amanitin;; and iii) a large, polar, cell-impermeable drug:
calicheamicin. Each of these drugs is currently under development or in use as an antibody-drug conjugate
warhead, but there are important limitations to the antibody approaches, including limited biomarker
availability, resistance selection, a narrow therapeutic window and limited delivery, often with < 1% of a
construct reaching the tumor. Our approach is based on targeting tumor acidity, especially cancer cell surface
pH that is a general parameter within and among different tumors, and independent of tumor perfusion.
We propose to explore variation of pHLIP sequences, introduce pHLIP-cycles and exploit pHLIP-bundles for
delivery of these therapeutic cargoes. The pHLIP-cargo constructs will be tested for insertion stability and
kinetics, using biophysical methods and computational modelling. Activity will be evaluated in cells, and
promising constructs will be assessed in vivo. We will accumulate a parameter database of pHLIP-cargo
properties and employ modern bioinformatics algorithms to analyze the entire data set to reveal major design
principles.
By studies of these therapeutic agents with pHLIPs, we hope to find principles for targeted delivery of a range
of other compounds. Should we be successful, the limitations of antibody drug conjugates for therapy will be
overcome, and greater understanding of the membrane barrier will also be in hand. Our expectation is to have
a candidate for the treatment of bladder cancer as the practical outcome of this grant renewal.
项目总结/摘要
我们现在对pHLIPs(pH-LIPs Low Insertion Peptides)的理解使得能够设计新颖的pH-LIPs。
利用肿瘤细胞表面的酸性作为生物标志物的敏感靶向剂。
这项资助已经产生了一种新的诊断核成像剂(PET-pHLIP)和一种新的荧光
用于影像学引导外科手术的成像剂(ICG-pHLIP)正在进入临床试验,
2019年纪念斯隆凯特琳癌症中心。
这种延续的主要焦点是使极性和适度的靶向细胞内递送成为可能。
我们提出了一个系统的方法,使用代表性的货物从3
具有不同物理、化学和功能性质的治疗分子的类别:i)a
中等疏水性、微细胞渗透性的小药物分子:mertansine; iii)中等极性,
细胞膜不可渗透的、环状的、刚性的、较大的药物:鹅膏蕈碱;和iii)大的、极性的、细胞膜不可渗透的药物:
这些药物中的每一种目前都在开发中或作为抗体-药物缀合物使用
弹头,但抗体方法存在重要的限制,包括有限的生物标志物
可用性、抗性选择、狭窄的治疗窗口和有限的递送,通常< 1%的
我们的方法是基于靶向肿瘤酸性,特别是癌细胞表面
pH是不同肿瘤内和之间的一般参数,并且与肿瘤灌注无关。
我们建议探索pHLIP序列的变化,引入pHLIP-双循环,并利用pHLIP-双束,
将测试pHLIP-β-运载物构建体的插入稳定性,
动力学,使用生物物理方法和计算建模。活性将在细胞中进行评估,
有希望的构建体将在体内进行评估,我们将积累一个pHLIP-β-cargo的参数数据库,
属性,并采用现代生物信息学算法来分析整个数据集,以揭示主要设计
原则
通过对这些治疗药物与pHLIPs的研究,我们希望找到一系列靶向给药的原则,
如果我们成功的话,抗体药物缀合物用于治疗的局限性将是
克服,并更好地了解膜屏障也将在手。我们的期望是有
膀胱癌治疗的候选人作为这一赠款更新的实际成果。
项目成果
期刊论文数量(65)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Advanced targeted nanomedicine.
- DOI:10.1016/j.jbiotec.2015.01.009
- 发表时间:2015-05-20
- 期刊:
- 影响因子:4.1
- 作者:Pereira MC;Reshetnyak YK;Andreev OA
- 通讯作者:Andreev OA
Novel pH-Sensitive Cyclic Peptides.
- DOI:10.1038/srep31322
- 发表时间:2016-08-12
- 期刊:
- 影响因子:4.6
- 作者:Weerakkody D;Moshnikova A;El-Sayed NS;Adochite RC;Slaybaugh G;Golijanin J;Tiwari RK;Andreev OA;Parang K;Reshetnyak YK
- 通讯作者:Reshetnyak YK
pHLIP-FIRE, a cell insertion-triggered fluorescent probe for imaging tumors demonstrates targeted cargo delivery in vivo.
- DOI:10.1021/cb500388m
- 发表时间:2014-11-21
- 期刊:
- 影响因子:4
- 作者:Katabadzhak, Alexander G.;An, Ming;Yao, Lan;Langenbacher, Rachel;Moshnikova, Anna;Adochite, Ramona-Cosmina;Andreev, Oleg A.;Reshetnyak, Yana K.;Engelman, Donald M.
- 通讯作者:Engelman, Donald M.
Identifying and measuring transmembrane helix-helix interactions by FRET.
通过 FRET 识别和测量跨膜螺旋-螺旋相互作用。
- DOI:10.1007/978-1-62703-023-6_6
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Thevenin,Damien;Lazarova,Tzvetana
- 通讯作者:Lazarova,Tzvetana
Ex-vivo Imaging of Upper Tract Urothelial Carcinoma Using Novel pH Low Insertion Peptide (Variant 3), a Molecular Imaging Probe.
- DOI:10.1016/j.urology.2019.01.008
- 发表时间:2020-05
- 期刊:
- 影响因子:2.1
- 作者:Brito J;Golijanin B;Kott O;Moshnikova A;Mueller-Leonhard C;Gershman B;Andreev OA;Reshetnyak YK;Amin A;Golijanin D
- 通讯作者:Golijanin D
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Oleg A Andreev其他文献
Oleg A Andreev的其他文献
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{{ truncateString('Oleg A Andreev', 18)}}的其他基金
pHLIP Nanotechnology Platform for Cancer Imaging and Therapy
用于癌症成像和治疗的 pHLIP 纳米技术平台
- 批准号:
7910974 - 财政年份:2009
- 资助金额:
$ 58.28万 - 项目类别:
pHLIP Nanotechnology Platform for Cancer Imaging and Therapy
用于癌症成像和治疗的 pHLIP 纳米技术平台
- 批准号:
8266880 - 财政年份:2008
- 资助金额:
$ 58.28万 - 项目类别:
pHLIP Nanotechnology Platform for Cancer Imaging and Therapy
用于癌症成像和治疗的 pHLIP 纳米技术平台
- 批准号:
7640915 - 财政年份:2008
- 资助金额:
$ 58.28万 - 项目类别:
pHLIP Nanotechnology Platform for Cancer Imaging and Therapy
用于癌症成像和治疗的 pHLIP 纳米技术平台
- 批准号:
8079618 - 财政年份:2008
- 资助金额:
$ 58.28万 - 项目类别:
New Technology for Selective Delivery of PNAs in Cancer Cells In Vitro and In Viv
体外和体内癌细胞中选择性递送 PNA 的新技术
- 批准号:
7290218 - 财政年份:2007
- 资助金额:
$ 58.28万 - 项目类别:
New Technology for Selective Delivery of PNAs in Cancer Cells In Vitro and In Viv
体外和体内癌细胞中选择性递送 PNA 的新技术
- 批准号:
7483276 - 财政年份:2007
- 资助金额:
$ 58.28万 - 项目类别:
Mechanism and Uses of Transmembrane Helix Insertion by Soluble Peptides
可溶性肽跨膜螺旋插入的机制和用途
- 批准号:
8106730 - 财政年份:2006
- 资助金额:
$ 58.28万 - 项目类别:
Mechanism and Uses of Transmembrane Helix Insertion by Soluble Peptides
可溶性肽跨膜螺旋插入的机制和用途
- 批准号:
8280406 - 财政年份:2006
- 资助金额:
$ 58.28万 - 项目类别:
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