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Updated: Jan 31, 2026

Microfluidic Device for Recreating a Tumor Microenvironment in Vitro
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Something Old, Something New: The Tumor Microenvironment Comes of Age
Kerrie L Marie1, Glenn Merlino1
1Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland. gmerlino@helix.nih.gov kerrie.marie@nih.gov.
None:
In this issue, Weeraratna and colleagues demonstrate that observed differences in melanoma aggressiveness in younger versus older patients can be explained not just by cell-intrinsic alterations over time, but by age-dependent changes in fibroblasts and the extracellular matrix they help create. Their findings identify novel cellular targets for melanoma therapy, as well as candidate prognostic biomarkers to better inform clinical decisions for patients with melanoma.See related article by Kaur et al., p. 64.See related article by Ecker et al., p. 82.
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