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Once you have discovered your novel biomarker candidate, you need to validate it using in vitro and in vivo model systems before moving to the clinic. Investigators concerned with the spatial features of a biomarker candidate in a solid tumor typically use antibodies to immunolabel proteins or oligos to identify RNA via in situ hybridization. From a clinical perspective, the ideal biomarker candidate should be obtained via minimally invasive methods such as body fluid collection or liquid biopsies. Enzyme-Linked Immunosorbent Assays (ELISAs) are another commonly used to measure changes in protein secretion into body fluids. ELISAs are ideal for assessing analyte expression in body fluids or liquid biopsies. Bio-Techne’s brands have over 30 years of expertise in ELISA development. You will need tools that you can count on to reliably measure target analytes. Download our ELISA guide below, if you are unsure which type of ELISA is best for your needs.


We have over 1000 high-quality antibodies against cancer related proteins. We have sorted our antibodies by cancer type for your convenience.

Antibodies for Cancer Biomarker Discovery

In Situ Hybridization (ISH)

Use our proprietary in situ hybridization assays to detect any target that has a known transcript. Choose from RNAscope™, BaseScope™, or multiplex with our new HiPlex v2 Assay.

ISH for Cancer Biomarker Discovery

Quantikine™ ELISAs

Quantikine ELISAs are the gold-standard assay for measuring analytes in supernates and secreted fluids. Count on Quantikine ELISAs for the reliability and accuracy that you need before moving to the clinic. Have questions about the Quantikine ELISA? Watch the How-to video.

ELISA data for Cancer Biomarker Discovery

DuoSet™ ELISAs

Prefer to do it yourself? This economical alternative to Quantikine allows you to build your own ELISA from scratch. Choose from over 800 flexible, DuoSet ELISA Development Systems. Unsure how to run DuoSet ELISA? Watch our How-to video.

ELISAs for Cancer Biomarker Discovery

Milo™ Single-Cell Westerns

Cellular heterogeneity is a great confound. Extrapolating biological responses from large populations of cells can be a source of error. Use Milo to assess protein changes at the single cell level.

Cancer Biomarker Discovery with the Milo Instrument

Monitoring Target Engagement in Drug Discovery: Application of Wes to the CETSA

Is your biomarker candidate also a drug target? Download this appnote to see how Wes™ can be used for Cellular Thermal Shift Assays!

Immunohistochemistry Handbook

Download this guide to immunohistochemistry (IHC) for technical tips, benchtop protocols, and a troubleshooting guide to optimize your experiments.

Immunocytochemistry Handbook

Download this guide to immunocytochemistry (ICC) for detailed protocols and troubleshooting tips.


Not sure which ELISA is best for your needs? Download our ELISA guide to find out.