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Improving Biopsies using Magnetic Nanoparticles

使用磁性纳米颗粒改善活检

基本信息

批准号：
8337490
负责人：
EDWARD R FLYNN
金额：
$ 0.62万
依托单位：
SENIOR SCIENTIFIC
依托单位国家：
美国
项目类别：
财政年份：
2005
资助国家：
美国
起止时间：
2005-07-20 至 2011-05-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8337490
关键词：
Acute Lymphocytic Leukemia Antibodies Antineoplastic Agents Applications Grants Area Binding Biochemical Biocompatible Biological Biopsy Blood Vessels Blood specimen Bone Marrow Bone marrow biopsy Breast Breast Diseases Cancerous Cells Characteristics Child Clinical Clinical Trials Collecting Cell Collection Cytometry Detection Development Disease Drug usage Dysmyelopoietic Syndromes Excision Goals Health Heating Hodgkin Disease Human Human body Institutional Review Boards Label Lead Left Life Magnetism Malignant Neoplasms Marrow Measurement Measures Metals Methodology Methods Microscopic Monitor Nanostructures Nanotechnology Nature Needle biopsy procedure Needles Ovarian Ovarian Diseases Pain Patients Phase Plastics Procedures Process Property Prostate Prostatic Diseases Radial Randomized Reporting Residual Neoplasm Sampling Sensitivity and Specificity Site Specificity Staging T-Cell Leukemia Techniques Testing Therapeutic Therapeutic Agents Therapeutic Intervention Time Tissues angiogenesis base bone cancer cell cancer site cancer type cell type chemotherapy clinical application controlled release design experience hyperthermia treatment improved leukemia magnetic field millisecond movie nanoparticle nanosystems novel older patient outcome forecast particle programs sensor tool

项目摘要

DESCRIPTION (provided by applicant): In children with acute lymphomatic leukemia (ALL) and in myelodysplastic syndrome (MDS) with older patients it is extremely important to measure the minimal residual disease (MRD) to monitor the progress of chemotherapy at early stages Such measurements determine the prognosis, efficacy, and levels of the treatment. The normal method for detection and monitoring is through bone marrow biopsies. Unfortunately, this method requires multiple biopsies to obtain sufficient samples and these must be made at periodic intervals to monitor the treatment. It is possible to substantially improve the efficiency of biopsies through the use of appropriately labeled magnetic nanoparticles and using magnetic collection methods. These antibody-labeled magnetic nanoparticles seek out, and attach themselves to, cancer cells, which can then be collected magnetically. This grant application describes the methodology behind this biopsy technique using a }smart} magnetic biopsy needle making it possible to substantially increase the efficiency of the biopsy as well as the specificity for particular leukemia cancer types but also including the sampling of metastatic rare cancer cells in the marrow. By using magnetic nanoparticles coated with anti-cancer agents and magnetically concentrated, direct therapeutic intervention at the cancer site is possible. PUBLIC HEALTH RELEVANCE: Nanotechnology for Disease Detection, Magnetic Nanoparticles for targeting Disease, Magnetic Needle for Bone Marrow Biopsy

描述（由申请人提供）：在患有急性淋巴白血病（ALL）的儿童和患有老年骨髓增生异常综合征（MDS）的患者中，在早期阶段测量最小残留病（MRD）以监测化疗进展非常重要，这种测量决定了预后、疗效和治疗水平。正常的检测和监测方法是通过骨髓活检。不幸的是，这种方法需要多次活检以获得足够的样本，并且必须定期进行活检以监测治疗情况。通过使用适当标记的磁性纳米颗粒和使用磁性收集方法，可以大大提高活组织检查的效率。这些抗体标记的磁性纳米颗粒寻找并附着在癌细胞上，然后可以通过磁性收集癌细胞。该资助申请描述了使用智能磁活检针的活检技术背后的方法，该技术可以大大提高活检的效率以及对特定白血病类型的特异性，还包括骨髓中转移性罕见癌细胞的采样。通过使用磁性纳米颗粒包裹抗癌剂并进行磁性浓缩，在癌症部位进行直接治疗干预是可能的。公共卫生相关性：疾病检测的纳米技术，靶向疾病的磁性纳米颗粒，骨髓活检的磁针