What does this research mean for the field?

An intraperitoneal injection model using OVCAR-3 cells supplemented with basement membrane extract accurately reproduces human peritoneal carcinomatosis progression and distribution in mice, outperforming localized implantation strategies. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To compare diffuse versus localized intraperitoneal engraftment strategies of OVCAR-3 cells and evaluate the effect of basement membrane extract supplementation to establish a reproducible murine model of peritoneal carcinomatosis.

September 2, 2026Animal Models and Experimental MedicineOpen Access

Refining OVCAR ‐3 xenograft models of peritoneal carcinomatosis in nu/nu mice: Comparative intraperitoneal implantation strategies and the role of basement membrane matrix

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Authors

MPM. Teresa Perelló-Trias ASAntonio José Serrano‐Muñoz JSJuan José Segura‐Sampedro

Discussion

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Overview

Preclinical study demonstrates that intraperitoneal injection with basement membrane extract mimics peritoneal carcinomatosis in mice, indicating a reliable model for drug testing.

Key Points

To compare diffuse versus localized intraperitoneal engraftment strategies of OVCAR-3 cells and evaluate the effect of basement membrane extract supplementation to establish a reproducible murine model of peritoneal carcinomatosis.
Engrafted immunodeficient female nu/nu mice with luciferase-expressing OVCAR-3 cells using either a localized preperitoneal technique (1 × 10^6 vs. 4 × 10^6 cells, tested with basement membrane extract [BME]) or a diffuse intraperitoneal injection (1 × 10^6 cells with BME).
Monitored longitudinal tumor progression via weekly bioluminescence imaging (BLI) and performed post-sacrifice macroscopic, histological, and immunohistochemical assessments.
In the localized preperitoneal model, cell density (1 × 10^6 vs. 4 × 10^6) showed no engraftment differences; BME temporarily increased initial tumor volume, but the lesions subsequently exhibited apoptosis, matrix remodeling, and progressive regression.
In the intraperitoneal dissemination model with BME, bioluminescence signals steadily increased after an initial dip, and necropsy confirmed the development of clinically representative tumor nodules spread across abdominal organ surfaces.

Cite This Study

Perelló-Trias et al. (2026) studied this question.

synapsesocial.com/papers/6a97e305c562ede874ec79ed https://doi.org/10.1002/ame2.70280

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September 2, 2026Animal Models and Experimental MedicineOpen Access

Refining OVCAR ‐3 xenograft models of peritoneal carcinomatosis in nu/nu mice: Comparative intraperitoneal implantation strategies and the role of basement membrane matrix

View Full Paper

Ask AI

Bookmark

Authors

MPM. Teresa Perelló-Trias ASAntonio José Serrano‐Muñoz JSJuan José Segura‐Sampedro

Discussion

Member takes

Overview

Preclinical study demonstrates that intraperitoneal injection with basement membrane extract mimics peritoneal carcinomatosis in mice, indicating a reliable model for drug testing.

Key Points

To compare diffuse versus localized intraperitoneal engraftment strategies of OVCAR-3 cells and evaluate the effect of basement membrane extract supplementation to establish a reproducible murine model of peritoneal carcinomatosis.
Engrafted immunodeficient female nu/nu mice with luciferase-expressing OVCAR-3 cells using either a localized preperitoneal technique (1 × 10^6 vs. 4 × 10^6 cells, tested with basement membrane extract [BME]) or a diffuse intraperitoneal injection (1 × 10^6 cells with BME).
Monitored longitudinal tumor progression via weekly bioluminescence imaging (BLI) and performed post-sacrifice macroscopic, histological, and immunohistochemical assessments.
In the localized preperitoneal model, cell density (1 × 10^6 vs. 4 × 10^6) showed no engraftment differences; BME temporarily increased initial tumor volume, but the lesions subsequently exhibited apoptosis, matrix remodeling, and progressive regression.
In the intraperitoneal dissemination model with BME, bioluminescence signals steadily increased after an initial dip, and necropsy confirmed the development of clinically representative tumor nodules spread across abdominal organ surfaces.

Cite This Study

Perelló-Trias et al. (2026) studied this question.

synapsesocial.com/papers/6a97e305c562ede874ec79ed https://doi.org/10.1002/ame2.70280

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