Diagnostic platforms for the detection of mucinous and high grade cysts in the pancreas of subjects are provided. The disclosure provides a system comprising enzyme specific substrate, that are specific for detection and/or quantification of serine protease TPP-1, the value of which corresponding to a determination of whether a mucinous cyst in the pancreas is malignant or benign. The disclosure also provides for a two-step method, in which a sample from a pancreatic cyst is determined mucinous by detection and/or quantification of aspartyl protease expression, and then the same cyst is determined high grade dysplasia or malignant by detection and/or quantification of serine protease expression.

Disclosed are novel detectable imaging agents that can bind to a novel biomarker for cancer and methods of their use in the resection of a tumor.

Provided herein are antibodies and related polypeptides that bind specifically to CEACAM6. The antibodies and/or polypeptides can be configured as bispecific T cell engagers. The antibodies and/or polypeptides can also be configured as chimeric antigen receptors. Also provided are methods of detection and treatment of cancer, for example, pancreatic cancer, using the antibodies and related polypeptides herein.

The invention provides an anti-CEA antibody for use in detecting CEA, treating disorders associated with CEA expression, diagnosing cancers characterized by aberrant CEA expression, and predicting effectiveness of cancer drug therapies.

The present invention relates to an antigen-binding protein, or an antigen-binding fragment thereof which binding to CEACAM6, comprising (i) a heavy chain variable domain comprising a VHCDR1 having the amino acid sequence GNTFTSYVMH; a VHCDR2 having the amino acid sequence YINPYNDGTKYNEKFKG; and a VHCDR3 having the amino acid sequence STARATPYFYAMDY and (ii) a light chain variable domain comprising a VLCDR1 having the amino acid sequence KSSQSLLWSVNQNSYLS, a VLCDR2 having the amino acid sequence GASIRES, and a VLCDR3 having the amino acid sequence QHNHGSFLPYT. The present invention also relates to compositions comprising the antigen-binding protein, or antigen-binding fragment thereof, methods of use of the antigen-binding protein, or antigen-binding fragment thereof for cancer treatment, prevention or detection and a kit comprising the antigen-binding protein, or antigen-binding fragment thereof.

The present invention provides a technique for reducing contamination with impurities in a system of operating an extracellular vesicle. More specifically, the present invention provides a method of washing an extracellular vesicle and the like. The method includes washing the extracellular vesicle with a nonionic surfactant that is a chain compound containing a structure represented by —O—(—CH.sub.2—CH.sub.2—O—).sub.x—H, wherein x is a value defined in the description.

Provided are a monoclonal antibody capable of specifically binding to human carcinoembryonic antigen cell adhesion molecule 5 (CEACAM5) and an antigen binding fragment thereof. Further provided are a preparation method for and use of said antibody and antigen binding fragment thereof.

Provided herein are antibodies and related polypeptides that bind specifically to CEACAM6. The antibodies and/or polypeptides can be configured as bispecific T cell engagers. The antibodies and/or polypeptides can also be configured as chimeric antigen receptors. Also provided are methods of detection and treatment of cancer, for example, pancreatic cancer, using the antibodies and related polypeptides herein.

Disclosed are antibodies which bind human and Macaca fascicularis CEACAM5 proteins, as well as isolated nucleic acids, vectors and host cells comprising a sequence encoding the antibodies. Also disclosed are immunoconjugates comprising the antibodies conjugated or linked to a growth-inhibitory agent, and pharmaceutical compositions comprising the antibodies or immunoconjugates of the invention. The antibodies or immunoconjugates are used for the treatment of cancer or for diagnostic purposes.

The present disclosure relates generally to detection of molecular biomarkers in a sample or diagnosis of a subject based upon detection or quantification of molecular biomarkers in a sample, specifically to the identification and use of biomarkers for pancreatic cysts.