Measuring cancer biomarker candidates by targeted ms and ab enrichment
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| Project Title: |
Measuring cancer biomarker candidates by targeted ms and ab enrichment |
| Principal Investigators (PI): |
CARR STEVEN A
|
| Project Number: |
5U24CA126476-05 |
| Organization: |
BROAD INSTITUTE, INC.
|
| |
| Project Description: |
| [unreadable] (provided by applicant): We propose to assess the robustness of a high-throughput mass spectrometric (MS) technology platform for quantitative measurement of multiple candidate biomarker proteins in complex samples such as human plasma. Specific assays will be developed for 300 candidate biomarker proteins drawn from published literature, pathway analysis, microarray, and proteomics discovery efforts. These assays will be used to measure biomarker levels in 200 selected cancer and 200 control plasma samples at three different laboratory sites using two variant MS platforms. The results will characterize the quantitative reproducibility of the assay methodology within- and between-laboratories and over time. A series of standardized reagents will be developed allowing the assays to be implemented in other laboratories using similar standardized instrumentation. Our measurement platform makes use of well-established quantitative MS techniques used in the routine measurement of small molecules: so-called "multiple reaction monitoring" (or MRM) assays and stable isotope labeled internal standards for quantitation, here in the form of synthetic, labeled peptides. By measuring both the labeled and unlabeled (sample-derived) peptides by MS, the method provides a quantitative measure of the relative amounts of the signature peptide and therefore the protein that it is derived from. In order to access lower abundance biomarkers (those in the lower 5 orders of magnitude of the overall 10 orders of magnitude plasma abundance scale) we will employ specific enrichment techniques using immobilized anti-peptide antibodies. After extensive optimization and characterization, our assays will be deployed on clinical plasma samples from breast cancer cases and controls. Key outcomes of this project will be to demonstrate 1) that we can make sensitive and specific assays quickly and inexpensively; 2) that the assays can be highly multiplexed, greatly reducing the cost-per-analyte; and 3) that the protocols and technology can be standardized and distributed. Several members of our CPTAC team are currently involved in proteomic consortia aimed at MS-based discovery of candidate breast cancer biomarkers in human samples and mouse models. These efforts are generating robust datasets that will also be leveraged by this CPTAC team to inform selection of candidates for assay development and ultimate validation. [unreadable] [unreadable] [unreadable] |
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| Project Terms: |
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Assay
Bioassay
Biologic Assays
Biological Assay
Blood Plasma
Cancer of Breast
Cancers
Clinical
Complex
Data Set
Dataset
Human
Human, General
Instrumentation, Other
Label
Laboratories
Literature
Malignant Neoplasms
Malignant Tumor
Malignant Tumor of the Breast
Malignant neoplasm of breast
Man (Taxonomy)
Man, Modern
Measurement
Measures
Method LOINC Axis 6
Methodology
Methods
Methods and Techniques
Methods, Other
Network Analysis
Outcome
Pathway Analysis
Peptide antibodies
Peptides
Plasma
Proteins
Proteomics
Protocol
Protocols documentation
Publishing
Reagent
Relative
Relative (related person)
Reproducibility
Reticuloendothelial System, Serum, Plasma
Sampling
Series
Serum, Plasma
Site
Stable Isotope Labeling
Techniques
Technology
Time
Validation
Variant
Variation
assay development
base
biomarker
candidate selection
case control
cost
gene product
instrumentation
malignancy
malignant breast neoplasm
member
mouse model
multiple reaction monitoring
neoplasm/cancer
small molecule
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| Project Title: |
Measuring cancer biomarker candidates by targeted ms and ab enrichment |
| Principal Investigators (PI): |
CARR STEVEN A
|
| Project Number: |
5U24CA126476-05 |
| Organization: |
BROAD INSTITUTE, INC.
|
| |
| Project_number |
Title |
Year |
FY Total Cost |
| There are no results for this project in database. |
| Project Title: |
Measuring cancer biomarker candidates by targeted ms and ab enrichment |
| Principal Investigators (PI): |
CARR STEVEN A
|
| Project Number: |
5U24CA126476-05 |
| Organization: |
BROAD INSTITUTE, INC.
|
| |
| Project Title: |
Measuring cancer biomarker candidates by targeted ms and ab enrichment |
| Principal Investigators (PI): |
CARR STEVEN A
|
| Project Number: |
5U24CA126476-05 |
| Organization: |
BROAD INSTITUTE, INC.
|
| |
| Project number |
Project title |
Principal investigator |
| There are no any related projects. |
| Project Title: |
Measuring cancer biomarker candidates by targeted ms and ab enrichment |
| Principal Investigators (PI): |
CARR STEVEN A
|
| Project Number: |
5U24CA126476-05 |
| Organization: |
BROAD INSTITUTE, INC.
|
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