ArticleScientific reports2026
Human bone marrow derived mesenchymal stem cells do not promote oral cancer cell growth in vitro and metastasis in vivo.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Mesenchymal stem cells (MSCs), particularly those derived from bone marrow (BMMSCs), hold substantial promise for bone regeneration in the maxillofacial region, especially after surgical resections with bone involvement. However, their use in patients with resections undergoing oral cancer treatment poses potential risks due to the effects of MSCs in modulating cancer cell behavior. This study aimed to assess the effect of circulatory BMMSCs on proliferation, migration, invasion, tumor growth, and metastasis of oral squamous cell carcinoma (OSCC) cells. Human BMMSCs were isolated, characterized, and their conditioned medium (CM) was tested on OSCC cell lines (Ca1 and OSCC1). Further, BMMSCs were transduced with lentiviral particles to express firefly luciferase for live cell tracking in vivo to study their biodistribution and homing capability to xenograft tongue tumors. In vitro assays revealed that BMMSC-CM did not significantly alter OSCC proliferation or invasion in 3D organotypic assays, while significantly reducing their migration in 2D scratch wound assay. In vivo, bioluminescent imaging and histological analyses indicated that human BMMSCs predominantly localized to the lungs without homing to other organs or to the human xenograft tongue tumors. Moreover, circulatory BMMSCs did not influence tumor size, nor did they promote lung metastasis in xenografted mice under these conditions. These findings suggest that circulating BMMSCs did not exacerbate OSCC progression, supporting their potential use in regenerative applications for patients post-OSCC resection.
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