ArticleTranslational cancer research2025
Small peritoneal macrophages are accelerators of peritoneal metastasis of colorectal cancer.
Article in Translational cancer research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Accumulation of small peritoneal macrophages and dendritic cells in a concomitant immunity model associated with prolonged survival.Frontiers in immunology · 2026Article
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Background: The peritoneal cavity (PerC) constitutes a distinct anatomical compartment that harbors various subpopulations of peritoneal macrophages. However, there remains a significant gap in our understanding of the functions of these macrophage subpopulations in the context of peritoneal metastasis of colorectal cancer (PM-CRC) and their roles in the tumor progression process. This investigation seeks to analyze the characteristics of large peritoneal macrophages (LPMs) and small peritoneal macrophages (SPMs), in the context of PM-CRC. Methods: A murine model of PM-CRC was developed through the intraperitoneal administration of the MC38 colorectal cancer cell line into C57BL/6 mice. Peritoneal effusions were subsequently collected at various time points post-injection and subjected to analysis via flow cytometry, cell co-culture assays, among other techniques. Additionally, clodronate liposomes were employed to deplete peritoneal macrophages in order to investigate the impact of SPMs on tumor progression and survival in the PM-CRC mouse model. Results: The findings of this study demonstrated a significant increase in the number of SPMs during the progression of PM-CRC, concomitant with a decrease in the proportion of LPMs. Notably, SPMs exhibited a macrophage phenotype conducive to tumor growth. In the PM-CRC mouse model, the dynamic escalation of SPMs following lipopolysaccharide stimulation was associated with a reduced survival rate. However, the depletion of SPMs using clodronate liposomes in the later stages of the model effectively extended the survival period in cases of PM-CRC. Conclusions: The findings of this study suggest that SPMs acts as a catalyst in the progression of peritoneal metastasis in colorectal cancer, thereby identifying it as a potential therapeutic target for managing this condition.
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