지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.12
- 수록면
- 88 - 111 (24page)
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초록· 키워드
오류제보하기
Systemic sclerosis (SSc) is a complex autoimmune disease with an unclear etiology and no effective treatments. Recent research has suggested involvement of the microbiome in SSc pathogenesis. This study aimed to identify specific microbial species associated with SSc and explore their therapeutic potential. Serum Abs against 384 intestinal microbial species revealed a significant depletion in Abs against Bifidobacterium longum in patients with SSc compared to healthy controls. In a bleomycin-induced SSc mouse model, oral administration of B. longum strain RAPO attenuated skin and lung fibrosis, accompanied by reduced infiltration of inflammatory monocytes/macrophages and downregulation of pro-inflammatory cytokines and chemoattractant Ccl2 genes in lymph nodes and fibrotic tissues. B. longum RAPO treatment restored fecal microbial diversity and augmented short- chain fatty acid (SCFA)-producing bacteria in the gut, leading to increased fecal butyrate levels and upregulated SCFA receptor Gpr41 in the mesenteric lymph node. In vitro, B. longum RAPO and its culture supernatant suppressed the expressions of pro-inflammatory cytokine genes in macrophages and inhibited myofibroblast differentiation in fibroblasts. These findings highlight the probiotic potential of B. longum RAPO in preventing tissue fibrosis by modulating macrophage activity and promoting the growth of SCFA-producing bacteria, underscoring the therapeutic potential of microbial modulation in SSc.
목차
ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
DISCUSSION
REFERENCES
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