Method Profile

PARP–BLM Response Testing in Neuroendocrine Cervical Cancer Organoids

Patient-derived cervical cancer organoids connect molecular repair hypotheses with ATP-based single-agent and combination responses.

Tumor ModelsOrganoids
An anatomical diagram labels the cervix beneath the uterus, with surrounding reproductive structures.
Anatomical position of the cervix. (US Government; Pixelsquid, Public domain)

Research Applications

Evaluate preclinical DNA-repair combinations in a rare cervical cancer and compare selected non-neuroendocrine models.

Model & Design

NECC organoids with non-NECC cervical organoids for specified comparisons; complementary TC-YIK and other cancer cell lines.

Experimental Format

Matched vehicle conditions, dose-response profiling and a separate high-concentration combination experiment, with imaging and ATP luminescence.

Model Components

  • Component

    Organoids

    Description

    Patient-derived cervical cancer organoids, including NECC and specified non-NECC comparators.

  • Component

    Interventions

    Description

    Olaparib, the BLM inhibitor ML216 and cisplatin; the organoid combination-validation experiment used 500 μM olaparib and 500 μM BLM inhibitor.

  • Component

    Measurements

    Description

    ATP-based viability, bright-field images and immunofluorescence for replication-stress and repair markers.

Measurements & Endpoints

  • Relative ATP viability
  • Dose-response IC50
  • pRPA32/53BP1 and repair-marker staining

Analysis

Normalize ATP measurements to matched controls and distinguish organoid response measurements from cell-line ZIP synergy scores and mouse efficacy experiments.

Published Evidence

  • Study Design

    Compare olaparib responses across cervical organoid backgrounds and test olaparib with BLM inhibition.

    Study Sample

    NECC and non-NECC organoid models; three technical replicates per concentration/condition in the described drug assays. An independent donor count is not provided for that comparison.

    Comparison

    Matched vehicle, single agents and combination; cervical adenosquamous organoids provide the reported olaparib comparator.

    Finding

    NECC organoid olaparib IC50 was 7.47 μM versus >50 μM in the adenosquamous comparator; combined olaparib/ML216 further lowered ATP viability.

    Interpretation & Limits
    • The 500 μM combination-validation conditions differ from the 0.1–50 μM olaparib dose-response range.
    • Strong ZIP synergy was measured in TC-YIK cells, not calculated as an organoid score.
    • ML216 is a preclinical tool compound; clinical-grade BLM inhibitors require development for the proposed combination.

Sources

  1. Multi-omics profiling reveals homologous recombination repair hyperactivation as a therapeutic vulnerability in neuroendocrine cervical carcinoma. Signal Transduction and Targeted Therapy. 2026. DOI: 10.1038/s41392-026-02822-1 ↗