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Science. 2015 Apr 17;348(6232):aaa2151. doi: 10.1126/science.aaa2151.

Skin fibrosis. Identification and isolation of a dermal lineage with intrinsic fibrogenic potential.

Author information

1
Institute for Stem Cell Biology and Regenerative Medicine, Departments of Pathology and Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.
2
Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
3
Ludwig Center for Cancer Stem Cell Biology and Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
#
Contributed equally

Abstract

Dermal fibroblasts represent a heterogeneous population of cells with diverse features that remain largely undefined. We reveal the presence of at least two fibroblast lineages in murine dorsal skin. Lineage tracing and transplantation assays demonstrate that a single fibroblast lineage is responsible for the bulk of connective tissue deposition during embryonic development, cutaneous wound healing, radiation fibrosis, and cancer stroma formation. Lineage-specific cell ablation leads to diminished connective tissue deposition in wounds and reduces melanoma growth. Using flow cytometry, we identify CD26/DPP4 as a surface marker that allows isolation of this lineage. Small molecule-based inhibition of CD26/DPP4 enzymatic activity during wound healing results in diminished cutaneous scarring. Identification and isolation of these lineages hold promise for translational medicine aimed at in vivo modulation of fibrogenic behavior.

PMID:
25883361
PMCID:
PMC5088503
DOI:
10.1126/science.aaa2151
[Indexed for MEDLINE]
Free PMC Article

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