Systems and methods for automated sample preparation and processing of protein corona are described herein, as well as its application in the discovery of advanced diagnostic tools as well as therapeutic agents.

The field of this invention relates to immunohistochemistry (IHC) and in situ hybridization (ISH) for the targeted detection and mapping of biomolecules (e.g., proteins and miRNAs) in tissues or cells for example, for research use and for clinical use such by pathologists (e.g., biomarker analyses of a resected tumor or tumor biopsy). In particular, the use of mass spectrometric imaging (MSI) as a mode to detect and map the biomolecules in tissues or cells for example. More specifically, the field of this invention relates to photocleavable mass-tag reagents which are attached to probes such as antibodies and nucleic acids and used to achieve multiplex immunohistochemistry and in situ hybridization, with MSI as the mode of detection/readout. Probe types other than antibodies and nucleic acids are also covered in the field of invention, including but not limited to carbohydrate-binding proteins (e.g., lectins), receptors and ligands. Finally, the field of the invention also encompasses multi-omic MSI procedures, where MSI of photocleavable mass-tag probes is combined with other modes of MSI, such as direct label-free MSI of endogenous biomolecules from the biospecimen (e.g., tissue), whereby said biomolecules can be intact or digested (e.g., chemically digested or by enzyme).

The disclosure relates to methods of analyzing a post-translationally modified protein of interest using electrophoresis, the methods comprising deglycosylating the protein of interest after labeling.

An embodiment according to the present disclosure provides a method for evaluating a degree of glycation of a protein, the method including providing a solution potentially containing a target protein, bringing the solution into contact with a color indicator, bringing the solution into contact with protease, using a first reaction between the color indicator and the target protein to determine a concentration of the target protein in the solution, using a second reaction between the protease and the target protein to determine a concentration of the target protein having been glycated, and determining, based on the concentration of the target protein and the concentration of the target protein having been glycated, a degree of glycation of the target protein.

This invention provides methods for the screening and identification of antigenic components in a tissue or organ of interest.

The present invention provides compositions and methods that can be used to determine a peptide signature for an antibody repertoire in a sample comprising multiple antibodies. The method can be used to characterize a phenotype in a sample, such as providing a diagnosis, prognosis or theranosis of a medical condition.

The present disclosure provides a system comprising a communication interface and computer for assigning a label to the biomolecule fingerprint, wherein the label corresponds to a biological state. The present disclosure also provides a sensor arrays for detecting biomolecules and methods of use. In some embodiments, the sensor arrays are capable of determining a disease state in a subject.

The present disclosure provides a system comprising a communication interface and computer for assigning a label to the biomolecule fingerprint, wherein the label corresponds to a biological state. The present disclosure also provides a sensor arrays for detecting biomolecules and methods of use. In some embodiments, the sensor arrays are capable of determining a disease state in a subject.

The present invention provides glycated Amadori products of the CD59 peptide and fragments thereof to be used as tools and among methods for the diagnosis and prognosis of pre-diabetes and diabetes. Certain aspects of the invention include glycated Amadori products of CD59 and fragments thereof to be used for the generation of antibodies and antibody fragments. Still other aspects of the invention include methodologies for the preparation of glycated Amadori products of CD59, fragments thereof, the inventive antibodies, and antibody fragments.

Disclosed herein, inter alia, are compositions and methods of use thereof for interrogating a cell.