2. Academic Validation
  3. Fecal microbiota transplantation affects the recovery of AD-skin lesions and enhances gut microbiota homeostasis

Fecal microbiota transplantation affects the recovery of AD-skin lesions and enhances gut microbiota homeostasis

  • Int Immunopharmacol. 2023 Mar 14;118:110005. doi: 10.1016/j.intimp.2023.110005.
Xinyu Jiang 1,  Zhifang Liu 1,  Yizhao Ma 1,  Linlin Miao 1,  Keyu Zhao 1,  Dianchen Wang 1,  Mengmeng Wang 1,  Hongyu Ruan 1,  Feng Xu 2,  Qiongyan Zhou 2,  Suling Xu 3
Affiliations

Affiliations

  • 1 The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China.
  • 2 The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China.
  • 3 The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China. Electronic address: [email protected].
PMID: 36924566 DOI: 10.1016/j.intimp.2023.110005
Abstract

Background: Accumulating evidence has shown that gut microbiota plays a key role in the progression of atopic dermatitis (AD). Fecal microbiota transplantation (FMT), as an effective method to restore gut microbiota homeostasis, has been successfully applied for treating many inflammatory diseases. However, the therapeutic effect of FMT on AD remains unclear. The following study examined the effect and mechanism of FMT on AD-skin lesions in an AD mouse model.

Methods: In this study, we exposed the shaved back skin of BALB/c mice to calcipotriol (MC903) to induce AD model. Mice were then treated with FMT, which was performed with gut microbiota from healthy mice. The gut microbiota of treated mice was tracked by 16S rRNA gene sequencing. Mice skin tissues were examined by histopathology and inflammatory cytokines change in serum by ELISA.

Results: FMT had a faster trend on the reversion of the increases in skin epidermal layer thicknesses and suppressed some of the representative inflammatory cytokines. The gut microbial community in the natural recovery process varied significantly in the FMT group at day 7 (ANOSIM P = 0.0229, r = 0.2593). Notably, FMT had a long-lasting and beneficial impact on the gut microbial compositions of AD mice by increasing the ratio of Firmicutes to Bacteroidetes and the amount of butyric-producing bacteria (BPB), including Erysipelotrichaceae, Lactobacillaceae, and Eubacteriacea. Furthermore, the relative abundances of gut microbiota-mediated functional pathways involved in the cell growth and death, amino acid, energy, lipid, and carbohydrate metabolisms, and immune system increased after FMT treatment.

Conclusion: FMT modulated the gut microbiota homeostasis and affected the recovery from AD-related inflammations, suggesting that it could be used as a treatment strategy for AD patients in the clinic.

Keywords

Atopic dermatitis (AD); Gut microbial community; Gut-skin axis; fecal microbiota transplantation (FMT).

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