OnCo

MUC16 (CA-125)

Short target page →

The giant mucin that is shed into blood as the CA-125 ovarian cancer marker; its membrane stalk is being targeted by ADCs and T-cell engagers. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

22,000-amino-acid mucin with tandem repeats, SEA domains cleaved to release CA-125, and a short cytoplasmic tail; mediates immune evasion (binds Siglec-9, mesothelin), adhesion to mesothelium and metastasis.

Where it is found
  • High-grade serous ovarian cancer (~80%)
  • Pancreatic adenocarcinoma (~65%)
  • Endometrial, lung adenocarcinoma, mesothelioma
  • Serum CA-125 in ovarian cancer monitoring
Class: surface antigen · Gene: MUC16 · Facts checked 2026-09-08 · Target page

Elsewhere: identifiers and databases

Built from HGNC, Ensembl, UniProt and ChEMBL ids

How common it is, by cancer

Full matrix →
CancerPrevalenceSource
Ovarian cancer
80%
doi.org

Approximate, population-level figures; the measure column says what was counted. Ranges show the midpoint as a bar.

Products by modality and phase

Browse products →

No product in the corpus is aimed at this target yet.

No trial in the corpus names this target or one of its products.

Resistance routes that involve this target

Unaddressed routes →

The resistance atlas has no route that names this target.

Pathways where it is a node

Pathway-to-drug matrix →

No pathway diagram carries this target as a node.

Companion diagnostics and assays

Assay registry →

No companion diagnostic in the registry measures this target.

Preclinical models

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No model entry for this target yet; check the cancer entries on the models page.

No open questions recorded for this target yet. Suggest one.

Key papers and the live literature

Preprints →
Latest papers · live from Europe PMC
Open in Europe PMC

Query for this target: (TITLE:"MUC16" OR ABSTRACT:"MUC16" OR TITLE:"CA-125" OR ABSTRACT:"CA-125") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about MUC16 (CA-125), not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/muc16.json. Licence CC BY 4.0.