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Dasatinib Attenuates Fibrosis in Keloids by Decreasing Senescent Cell Burden

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Specialty Dermatology
Date 2023 Apr 6
PMID 37021598
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Abstract

Keloids are skin tumours caused by aberrant growth of dermal fibroblasts. Cellular senescence contributes to aging and various pathological conditions, including cancer, atherosclerosis, and fibrotic diseases. However, the effects of cellular senescence and senolytic drugs on keloids remain largely unknown. This study investigated senescent fibroblasts in keloids and assessed the effects of dasatinib on these cells. Tissues acquired from keloid removal surgery were analysed for senescence-associated β-galactosidase-positive cells, p16 expression, and the effects of dasatinib treatment on keloids. Keloid tissue was xenotransplanted into mice, and the effect of intralesional dasatinib injection on keloid growth was observed. The results showed that the numbers of β-galactosidase-positive and p16-expressing cells were higher in the keloids compared with in the controls. Dasatinib induced selective clearance of senescent cells and decreased procollagen expression in cultured keloid fibroblasts. In this xenotransplant keloid mouse model, intralesional injection of dasatinib reduced gross keloid tissue weight and the expression of both procollagen and p16. In addition, dasatinib-treated keloid fibroblasts conditioned medium reduced procollagen and p16 expression in cultured keloid fibroblasts. In conclusion, these results suggest that an increased number of senescent fibroblasts may play an important role in the pathogenesis of keloids. Therefore, dasatinib could be an alternative treatment for patients with keloids.

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References
1.
Limandjaja G, Belien J, Scheper R, Niessen F, Gibbs S . Hypertrophic and keloid scars fail to progress from the CD34 /α-smooth muscle actin (α-SMA) immature scar phenotype and show gradient differences in α-SMA and p16 expression. Br J Dermatol. 2019; 182(4):974-986. DOI: 10.1111/bjd.18219. View

2.
Martyanov V, Whitfield M, Varga J . Senescence Signature in Skin Biopsies From Systemic Sclerosis Patients Treated With Senolytic Therapy: Potential Predictor of Clinical Response?. Arthritis Rheumatol. 2019; 71(10):1766-1767. PMC: 7863581. DOI: 10.1002/art.40934. View

3.
Xiao M, Chen W, Wang C, Wu Y, Zhu S, Zeng C . Senescence and cell death in chronic liver injury: roles and mechanisms underlying hepatocarcinogenesis. Oncotarget. 2018; 9(9):8772-8784. PMC: 5823588. DOI: 10.18632/oncotarget.23622. View

4.
Li B, He F, Yang X, Chen Y, Fan J . Steatosis induced CCL5 contributes to early-stage liver fibrosis in nonalcoholic fatty liver disease progress. Transl Res. 2016; 180:103-117.e4. DOI: 10.1016/j.trsl.2016.08.006. View

5.
Zhu Y, Tchkonia T, Pirtskhalava T, Gower A, Ding H, Giorgadze N . The Achilles' heel of senescent cells: from transcriptome to senolytic drugs. Aging Cell. 2015; 14(4):644-58. PMC: 4531078. DOI: 10.1111/acel.12344. View