Barcoded Magnetic Beads for Rapid Tests of MRSA and Respiratory Viral Panels

用于快速检测 MRSA 和呼吸道病毒检测的条形码磁珠

• 批准号: 7926790
• 负责人: Gao Chen
• 金额: $ 280.3万
• 依托单位: MAXWELL SENSORS, INC.
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-04-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7926790
• 关键词: Accounting; Antiviral Therapy; Attention; Automation; Bacteria; Base Sequence; Binding; Biological; Biological Assay; Centers for Disease Control and Prevention (U.S.); Cessation of life; Clinical Microbiology; Communicable Diseases; Complex; Country; Coupled; Detection; Development; Diagnostic; Disease; Disease Outbreaks; Drops; Economics; Figs - dietary; Fluorescence; Gene Targeting; Genetic Materials; Health Care Costs; Healthcare; Hospitalization; Hospitals; Human; Immunology; Infection; Influenza; Influenza A Virus, H1N1 Subtype; Laboratories; Lead; Marketing; Measurement; Medicare; Methicillin Resistance; Methods; Microbiology; Microscope; Molecular; Molecular Genetics; Nosocomial Infections; Nucleic acid sequencing; Patients; Pattern; Performance; Persons; Physicians; Polymerase Chain Reaction; Polymers; Process; Production; Reaction; Reagent; Reporting; Reproducibility; Sampling; Scanning; Screening procedure; Seasons; Sensitivity and Specificity; Signal Transduction; Social Impacts; Specimen; Staging; Staphylococcus aureus; Structure; Symptoms; System; Technology; Test Result; Testing; Time; Tube; Uncertainty; United States; Viral; Virus; Work; base; cost; design; flu; interest; magnetic beads; medical schools; meetings; methicillin resistant Staphylococcus aureus; multiplex detection; novel; pandemic disease; pathogen; public health relevance; research and development; resistant strain; respiratory; scale up; sensor; success; swine flu

DESCRIPTION (provided by applicant): Barcoded Magnetic Beads for Rapid Tests of MRSA and Respiratory Viral Panels. The human and financial impact of Methicillin-resistant Staphylococcus aureus (MRSA) is high. MRSA now accounts for greater than 60% of hospital-acquired S. aureus infections in the United States (2004). Over 278,000 hospitalized persons are infected by MRSA annually. Over 17,000 MRSA-related hospitalizations end in death. Over $2.5 billion excess health care costs are attributable to MRSA infections. The Centers for Disease Control and Prevention (CDC) has reported that MRSA infections have doubled in the past six years. The ability to accurately identify these pathogens is important because, beginning in October 2008, hospitals across the country may no longer receive Medicare reimbursement for many hospital acquired infections. The 2009 Influenza A/H1N1, or "swine flu," pandemic occupied the time and attention of many. With the new H1N1 virus continuing to cause illness, hospitalizations and deaths in the US during the normally flu-free summer months, there is some uncertainty about what the upcoming flu season might bring. Since the test allows physicians to quickly differentiate H1N1 patients from those who have similar symptoms, infected patients can be provided proper antiviral therapy in a timely manner. A rapid confirmation of H1N1 patients can mitigate many of the negative economic and social impacts associated with infectious disease outbreaks. Maxwell Sensors Inc. (MSI) has successfully combined Barcoded Magnetic Bead (BMB)(R) and Target Enriched Multiplex Polymerase Chain Reaction (Tem-PCR) technologies for simple, rapid, multiplex tests including: 14-plex Respiratory Viral Pathogen (RVP) (H1N1) panel, 18-plex MRSA panel, and 12-plex HAI (Healthcare Acquired Infection) panel. Barcode Magnetic Beads offer a new, simple, and robust multiplexed platform that can be coated with a reagent specific to a particular bioassay, allowing the capture and detection of specific analytes from a sample in homogeneous assays. Tem- PCR, a novel amplification method based on nested target-specific primers, allows sensitive and specific amplification of target sequences from any disease agents and/or secondary disease agent. The combined BMB/Tem-PCR is a very powerful method for a wide variety of panel applications. The polymer-based BMB are each coupled with one specific probe, and are able to accurately identify many targets in a single homogeneous medium. Each BMB uses a specific barcode to identify its specific target and fluorescence measurement for target detection. The BMB also functions like a traditional magnetic bead which can be used in routine washing processes and automation. The technology is very powerful and offers the following advantages: 1. Permit identification of panel of pathogens that are impossible or difficult to culture in the clinical microbiology laboratory setting; and 2. Allow clinical microbiology laboratories to provide important diagnostic information to physicians in a timely, cost-effective manner for an early, effective management of infected patients. PUBLIC HEALTH RELEVANCE: Current developments in laboratory diagnostics are characterized by an increasing request for the simultaneous determination of complex parameter profiles in immunology or molecular diagnostics. At the same time, rapid availability of test results and low total costs are needed for diagnostic laboratories. Test platforms that allow the simultaneous characterization of multiple molecular analytes in a single biological sample really make sense from the cost point of view. Conventionally, one well is designed for a single test. Now, multiple tests can be performed in one well. As reducing the cost of healthcare is one of the nation's best interests, the proposed technology certainly can reduce the expense of diagnostics by all-in-one tests.

描述(由申请人提供)：用于MRSA和呼吸道病毒面板快速检测的条形码磁珠。耐甲氧西林金黄色葡萄球菌(MRSA)对人类和经济的影响很大。耐甲氧西林金黄色葡萄球菌现在占美国医院获得的金黄色葡萄球菌感染的60%以上(2004年)。每年有超过27.8万名住院患者感染耐甲氧西林金黄色葡萄球菌。超过17,000名与耐甲氧西林金黄色葡萄球菌相关的住院患者最终死亡。超过25亿美元的超额医疗费用可归因于MRSA感染。疾病控制和预防中心(CDC)报告称，在过去六年中，MRSA感染人数翻了一番。准确识别这些病原体的能力很重要，因为从2008年10月开始，全国各地的医院可能不再为许多医院获得性感染获得医疗保险补偿。2009年的甲型H1N1流感，或称“猪流感”，占据了许多人的时间和注意力。在通常没有流感的夏季，新型H1N1病毒继续在美国引发疾病、住院和死亡，对于即将到来的流感季节可能会带来什么存在一些不确定性。由于该检测可以让医生迅速区分甲流患者和有类似症状的患者，因此可以及时为感染患者提供适当的抗病毒治疗。H1N1患者的快速确认可以减轻与传染病暴发相关的许多负面经济和社会影响。Maxwell Sensors Inc.(MSI)已成功地将条形码磁珠(BMB)(R)和目标丰富的多重聚合酶链式反应(Tem-PCR)技术结合在一起，用于简单、快速和多重检测，包括：14-plex呼吸道病毒病原体(H1N1)面板、18-plex MRSA面板和12-plex HAI(医疗保健获得性感染)面板。条形码磁珠提供了一种新的、简单且坚固的多路复用平台，该平台可以涂覆特定的生物检测试剂，允许在均相分析中捕获和检测样品中的特定分析物。TEM-PCR是一种基于嵌套式靶标特异性引物的新型扩增方法，可以从任何病原体和/或继发性病原体中灵敏和特异地扩增靶序列。结合BMB/Tem-PCR是一种非常有效的方法，适用于各种面板应用。基于聚合物的BMB每个都与一个特定的探针耦合，并且能够在单一的均匀介质中准确地识别许多目标。每个BMB使用特定的条形码来识别其特定的目标，并使用荧光测量来检测目标。BMB还具有传统磁珠的功能，可用于常规洗涤过程和自动化。该技术非常强大，具有以下优势：1.允许识别在临床微生物实验室环境中不可能或难以培养的病原体组；以及2.允许临床微生物实验室以及时、经济高效的方式向医生提供重要的诊断信息，以便对感染患者进行早期有效的治疗。 公共卫生相关性：实验室诊断学目前的发展特点是越来越多地要求同时测定免疫学或分子诊断学中的复杂参数谱。同时，诊断实验室需要快速获得检测结果和较低的总成本。从成本的角度来看，允许在单个生物样本中同时表征多个分子分析物的测试平台确实有意义。按照惯例，一口井是为一次测试设计的。现在，一口井可以进行多项测试。由于降低医疗成本是国家的最大利益之一，拟议中的技术肯定可以通过一体式测试减少诊断费用。