A method for predicting patient survival comprises determining a level of STK1 (serum thymidine kinase 1) material in a body sample from a patient diagnosed with prostate cancer using an antibody or a fragment thereof specifically binding to a serum form of human TK1. The method also comprises predicting survival of the patient based on the determined level of STK1 material in the body sample.

The present invention relates to diagnosing and classifying respiratory infections based on determined TK1 protein levels in body samples. In particular, a respiratory infection can be diagnosed and classified as Mycoplasma pneumonia caused by Mycoplasma pneumoniae based on the determined TK1 protein level.

Disclosed are the development of a recombinant chicken IgY monoclonal antibody and a recombinant chicken IgY single-chain variable fragment (scFv) antibody raised against human thymidine kinase 1 in mammalian cells and a preparation method and use thereof. A light chain of the scFv antibody includes an amino acid sequence shown in SEQ ID NO: 1, and a heavy chain of the scFv antibody includes an amino acid sequence shown in SEQ ID NO: 2.

The present disclosure relates to the finding that thymidine kinase 1 (TK-1) represents a valuable biomarker in a method for determining a Prognostic Index (PI) for risk stratification of a patient with aggressive B-cell lymphoma, especially diffuse large B-cell lymphoma (DLBCL), to the use of TK-1 in such PI and to a PI comprising the marker TK-1.

Disclosed are the expression of a recombinant chicken IgY scFv antibody and monoclonal antibody raised against human thymidine kinase 1 (hTK1) in prokaryotic cells and a preparation method and use thereof. The scFv antibody includes an amino acid sequence shown in SEQ ID NO: 1. The anti-hTK1 recombinant scFv antibody and monoclonal antibody have good immunoreactivity, high specificity and sensitivity, and are easy to separate and purify.

Disclosed are a kit and use thereof. The kit includes a first polyclonal antibody that has been immobilized or suitable for immobilization on a solid carrier, a second polyclonal antibody labeled with a marker. Both the first polyclonal antibody and the second polyclonal antibody are both chicken anti human-thymidine kinase IgY-polyclonal antibodies. Both the first polyclonal antibody and the second polyclonal antibody are suitable for specifically binding to thymidine kinase 1. The kit is suitable for the risk assessment of micro malignant tumors/precancerous diseases and tumors that are not detectable by human population screening images.

A kit useful for determination of canine TK1 in a sample is disclosed. The kit comprises a first monoclonal antibody, or a fragment thereof, immobilized to a support or intended to be immobilized to a support. The kit also comprises a second monoclonal antibody, or a fragment thereof. One of the monoclonal antibodies has specificity for a peptide consisting of an amino acid sequence from a C-terminal region of canine TK1 and the other monoclonal antibody has specificity for a peptide consisting of an amino acid sequence from an active site of TK1.

The disclosure provides methods and materials for detecting endogenous IgA antibodies to one or more, or all, of OmpC (ACA), Ki67 (AKiA), TK1, integrin (AINTA) and keratin (AKERA), which are useful to diagnose and distinguish chronic enteropathies, e.g. gastrointestinal neoplasms, e.g., gastrointestinal lymphoma, and, inflammatory conditions, e g inflammatory bowel disease, in felines.

Provided are a composition and a kit for diagnosing bladder cancer, breast cancer, cervical cancer, colorectal cancer, gastric cancer, liver cancer, lung cancer, ovarian cancer, pancreatic cancer, prostate cancer, and renal cancer, and a method for diagnosing cancer or a method for detecting a biomarker for diagnosing cancer, using the same. The present invention may be used as a composition or a kit for point-of-care testing-type diagnosis, and may diagnose bladder cancer, breast cancer, cervical cancer, colorectal cancer, gastric cancer, liver cancer, lung cancer, ovarian cancer, pancreatic cancer, prostate cancer, and renal cancer with high accuracy, sensitivity, and specificity.

The embodiments relate to monoclonal antibodies or fragments capable of binding to a serum form of human TK1 and to kits and methods involving the use of such monoclonal antibodies or fragments.