摘要:
The present invention provides apparatus and methods for enriching components or cells from a sample and conducting genetic analysis, such as SNP genotyping to provide diagnostic results for fetal disorders or conditions.
摘要:
The present invention provides systems, apparatuses, and methods to detect the presence of fetal cells when mixed with a population of maternal cells in a sample and to test fetal abnormalities, i.e. aneuploidy. In addition, the present invention provides methods to determine when there are insufficient fetal cells for a determination and report a non-informative case. The present invention involves quantifying regions of genomic DNA from a mixed sample. More particularly the invention involves quantifying DNA polymorphisms from the mixed sample.
摘要:
The invention encompasses methods for diagnosing, theranosing, or prognosing a condition in a patient based on the results of one or more analysis methods. The methods can comprise enriching a sample obtained from the patient for one or more rare cells. The analysis methods can include performing enumeration of the one or more rare cells or cell subtypes, performing nucleic acid analysis, or detecting a serum marker.
摘要:
The present invention provides apparatus and methods for enriching components or cells from a sample and conducting genetic analysis, such as SNP genotyping to provide diagnostic results for fetal disorders or conditions.
摘要:
The present invention provides methods for monitoring disease states in a subject, as well as methods for monitoring the levels of effect of therapies upon a subject having one or more disease states. The methods involve: (i) measuring abundances of cellular constituents in a cell from a subject to obtain a diagnostic profile, (ii) measuring abundances of cellular constituents in a cell of one or more analogous subjects to obtain perturbation response profiles which correlate to a particular disease or therapy, and (iii) determining the interpolated perturbation response profile or profiles which best fit the diagnostic profile. In other aspects, the invention also provides a computer system capable of performing the methods of the invention, databases comprising perturbation response profiles for one or more diseases and/or therapies, and kits for determining levels of disease states and/or therapeutic effects according to the methods of the invention.
摘要:
A method for fluorophore bias removal in microarray experiments in which the fluorophores used in microarray experiment pairs are reversed. Further, a method for calculating the individual errors associated with each measurement made in nominally repeated microarray experiments. This error measurement is optionally coupled with rank based methods in order to determine a probability that a cellular constituent is up or down regulated in response to a perturbation. Finally, a method for determining the confidence in the weighted average of the expression level of a cellular constituent in nominally repeated microarray experiments.
摘要:
The present invention provides methods for enhanced detection of biological response patterns. In one embodiment of the invention, genes are grouped into basis genesets according to the co-regulation of their expression. Expression of individual genes within a geneset is indicated with a single gene expression value for the geneset by a projection process. The expression values of genesets, rather than the expression of individual genes, are then used as the basis for comparison and detection of biological response with greatly enhanced sensitivity. In another embodiment of the invention, biological responses are grouped according to the similarity of their biological profile. The methods of the invention have many useful applications, particularly in the fields of drug development and discovery. For example, the methods of the invention may be used to compare biological responses with greatly enhanced sensitivity. The biological responses that may be compared according to these methods include responses to single perturbations, such as a biological response to a mutation or temperature change, as well as graded perturbations such as titration with a particular drug. The methods are also useful to identify cellular constituents, particularly genes, associated with a particular type of biological response. Further, the methods may also be used to identify perturbations, such as novel drugs or mutations, which effect one or more particular genesets. The methods may still further be used to remove experimental artifacts in biological response data.
摘要:
The present invention provides methods for determining the level of protein activity in a cell by: (i) measuring abundances of cellular constituents in a cell in which the activity of a specific protein is to be determined so that a diagnostic profile is thus obtained; (ii) measuring abundances of cellular constituents that occur in a cell in response to perturbations in the activity of said protein to obtain response profiles and interpolating said response profiles to generate response curves; and (iii) determining a protein activity level at which the response profile extracted from the response curves best fits the measured diagnostic profile, according to some objective measure. In alternative embodiments, the present invention also provides methods for identifying individuals having genetic mutations or polymorphisms that disrupt protein activity, and methods for identifying drug activity in vivo by determining the activity levels of proteins which interact with said drugs.
摘要:
This invention relates to methods and systems for characterizing the actions of drugs in cells. In particular, the invention provides methods for identifying multiple primary targets through which a drug, drug candidate, or other compound of interest acts on a cell. Thus, the invention also relates to methods for drug development based on the disclosed methods for identifying multiple primary targets of a drug. The methods of the invention involve: (i) measuring responses of cellular constituents to graded exposures of the cell to a drug of interest; (ii) identifying an “inflection concentration” of the drug for each cellular constituent measured; and (iii) identifying “expression sets” of cellular constituents from the distribution of the inflection drug concentrations. Each expression set corresponds to a particular primary target of the drug. The invention also provides computer systems which identify multiple targets of a drug by executing the disclosed methods.
摘要:
The present invention provides methods for monitoring disease states in a subject, as well as methods for monitoring the levels of effect of therapies upon a subject having one or more disease states. The methods involve: (i) measuring abundances of cellular constituents in a cell from a subject so that a diagnostic profile is obtained, (ii) measuring abundances of cellular constituents in a cell of one or more analogous subjects so that perturbation response profiles are obtained which correlate to a particular disease or therapy, and (iii) determining the interpolated perturbation response profile or profiles which best fit the diagnostic profile according to some objective measure. In other aspects, the invention also provides a computer system capable of performing the methods of the invention, data bases comprising perturbation response profiles for one or more diseases and/or therapies, and kits for determining levels of disease states and/or therapeutic effects according to the methods of the invention.