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The role and potential molecular mechanism of inflammatory cells in pediatric localized scleroderma are poorly investigated. In this study, we first investigated the profiling of inflammatory cells in skin samples from pediatric localized scleroderma. Among them, CD4+ T‐cells were up‐regulated. Co‐culture dermal fibroblasts with CD4+ T‐cells promoted fibrosis of fibroblasts. Candidate lncRNAs were further explored by lncRNAs‐seq between the normal skin tissues and pediatric localized scleroderma tissues, and the lncRNAs‐seq between fibroblasts co‐cultured with CD4+ T lymphocytes and control fibroblasts. By comparing the two datasets, we identified eight up‐regulated and three down‐regulated lncRNAs, which were the potential lncRNAs for the phenotype of pediatric localized scleroderma. Here, we identified the CD4+ T‐cells infiltration in pediatric localized scleroderma and potential lncRNAs for the treatment of pediatric localized scleroderma. [ABSTRACT FROM AUTHOR]

Background: Micronized acellular dermal matrix (mADM) can induce tissue regeneration and repair, and filling. Objectives: The efficacy and safety of (mADM) were evaluated in the treatment of atrophic acne scar. Methods: In this single‐blinded, self‐controlled, split‐face study, 16 patients (48 scar sites) were divided into treatment group (24 scar sites) and control group (24 scar sites). One side of the affected area was treated with mADM combined with platelet rich plasma (PRP) injection as the treatment group; the other side of the affected area was treated with PRP injection as the control group. The efficacy was evaluated by the Acne scar assessment scale (ASAS) and Acne Scar Weight Rating Scale (ECCA) 3 months after treatment. Results: After 3‐month treatment in 16 patients, the atrophic acne scars in both groups were all improved. The ASAS score and ECCA weight score in the treatment group was significantly lower than that in the control group (2.50 ± 0.51 vs. 3.62 ± 0.77 and 14.17 ± 10.18 vs. 31.88 ± 13.25; p < 0.001). Limitations: Short‐term 3‐month treatment period. Small sample size limits generalizability of results. Conclusion: The curative effect of mADM combined with PRP is significantly better than that of PRP alone. [ABSTRACT FROM AUTHOR]