MRNIP as a Radioligand Therapy Target
MRNIP, MRN complex interacting protein, is a cell-surface protein. In Human Protein Atlas immunohistochemistry, MRNIP staining is highest in liver cancer (100% of samples positive), colorectal cancer (100% of samples positive) and head and neck cancer (100% of samples positive). Clinical status: Discovery-stage (no clinical drug program).
Is MRNIP a good radioligand therapy target?
Scored against the six criteria that decide whether a protein can become a radioligand therapy:
- ✅ Cell-surface accessibility: Localized to the cell surface, so a radioligand can reach it from circulation.
- ✅ Tumor expression: High IHC staining in liver cancer, 100% of samples positive.
- ❔ Internalization: Not yet assessed.
- ⚠️ Clinical precedent: Discovery-stage (no clinical drug program)
- ❔ Shedding: Not yet assessed.
- ❔ Normal-tissue dosimetry: Check kidney, liver, bone marrow and salivary expression in the Human Protein Atlas tissue atlas.
MRNIP expression in cancer
Protein expression of MRNIP across 20 cancer types from Human Protein Atlas immunohistochemistry. The score is a weighted staining intensity from 0 to 1; "% positive" is the share of patient samples with detectable staining.
| Cancer type | IHC score | Level | % positive |
|---|---|---|---|
| Liver Cancer | 0.75 | High | 100% |
| Colorectal Cancer | 0.67 | High | 100% |
| Head and Neck Cancer | 0.67 | High | 100% |
| Thyroid Cancer | 0.67 | High | 100% |
| Neuroendocrine Tumors | 0.67 | High | 100% |
| Testicular Cancer | 0.67 | High | 100% |
| Melanoma | 0.64 | High | 100% |
| Bladder Cancer | 0.64 | High | 100% |
| Pancreatic Cancer | 0.64 | High | 100% |
| Endometrial Cancer | 0.63 | High | 100% |
| Gastric Cancer | 0.63 | High | 100% |
| Breast Cancer | 0.58 | High | 100% |
| Skin Cancer | 0.55 | High | 100% |
| Prostate Cancer | 0.54 | High | 100% |
| Lung Cancer | 0.53 | High | 90% |
| Ovarian Cancer | 0.53 | High | 100% |
| Cervical Cancer | 0.50 | Medium | 92% |
| Kidney Cancer | 0.44 | Medium | 92% |
| Glioma | 0.25 | Medium | 50% |
Not detected by IHC in: lymphoma.
Is MRNIP internalized?
Nuclens has not yet extracted internalization evidence for MRNIP. Internalization matters for radioligands because an internalizing receptor traps the radionuclide inside the tumor cell. Run a full analysis to pull the latest literature.
MRNIP clinical trials
Discovery-stage (no clinical drug program). Nuclens hasn't indexed trials for MRNIP yet. Search ClinicalTrials.gov for MRNIP trials.
MRNIP normal tissue expression
Normal-tissue expression in dose-limiting organs (kidney, liver, bone marrow, salivary glands) drives radioligand dosimetry risk. Nuclens is re-validating its normal-tissue values, so they are not shown here yet. See MRNIP in the Human Protein Atlas tissue atlas, and read how normal-tissue expression predicts radioligand dosimetry risk.
MRNIP gene essentiality (DepMap)
CRISPR knockout effect across 1258 cancer cell lines: 0.02 (not essential). Radioligands kill by radiation, not by blocking the target, so essentiality matters less than for inhibitors. A non-essential target can still be an excellent radioligand target.
Related liver cancer radioligand targets
EGFR · c-MET (MET) · HER3 (ERBB3) · SSTR2 · STEAP2 · HER2 (ERBB2) · Mesothelin (MSLN) · B7-H3 (CD276)
See all radioligand therapy targets in liver cancer.
See how MRNIP ranks against 15,000 targets for your indication.
Run a free analysisData sources
Subcellular localization: UniProt via Open Targets (CC BY 4.0 / CC0). Tumor immunohistochemistry: Human Protein Atlas (CC BY-SA 4.0). Clinical trials: ClinicalTrials.gov (public domain). Gene essentiality: DepMap (CC BY 4.0). Internalization and shedding: AI-extracted from PubMed abstracts, so verify against the cited papers before relying on them. Nuclens is a first-pass triage layer, not a substitute for wet-lab validation or clinical dosimetry. Derived expression data on this page is shared under CC BY-SA 4.0.