ArticleNucleus (Austin, Tex.)2026
Passive nuclear transport deviates from Fickian behavior in prostate and breast cell types.
Article in Nucleus (Austin, Tex.), 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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4 authors.
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Abstract
Nuclear trafficking is essential for cellular function and biomedical applications such as nucleus-targeted drug delivery; however, how passive nuclear transport varies across cell types and phenotypic states remains poorly understood. Here, we investigate passive nuclear transport of fluorescent molecular cargoes spanning 500-20,000 Da across multiple cell lines. We observe cell-line-specific nuclear restrictions and find that passive nuclear uptake does not exhibit a monotonic dependence on molecular weight, suggesting non-Fickian transport behavior. Furthermore, transforming a healthy breast cell model into an invasive-like phenotype via TGF-Beta treatment significantly altered passive nuclear transport characteristics, closely resembling those of a well-established invasive breast cancer cell line. These phenotype-dependent changes in nuclear permeability provide new insight into fundamental biophysical alterations associated with cancerous cellular transformation.
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