乾癬患者と健常対照群における腸内細菌叢と炎症性インターロイキンとの関連:観察研究
L Schneller-Pavelescu1, C Mora-Martínez2, M J Sánchez-Pujol3
1Departamento de Dermatología, Hospital Vega Baja, Orihuela, Alicante, Spain.
Actas dermo-sifiliograficas
|December 20, 2025
まとめ
乾癬患者は腸内細菌叢の変化を示し、SubdoligranulumおよびLactobacillusの存在量の違いが炎症性サイトカインと関連していました。これらの腸内細菌叢の変化は、乾癬治療の新たな道筋を提供する可能性があります。
科学分野:
- 免疫皮膚科学
- マイクロバイオーム研究
- 消化器病学
背景:
- 腸内細菌叢は、免疫系の調節および炎症性疾患において重要な役割を果たしている。
- 乾癬は炎症性疾患であり、腸内細菌叢の特定の役割とメカニズムは依然として不明である。
研究 の 目的:
- 乾癬患者と健常対照群の間での腸内細菌叢組成の違いを調査および特徴づけること。
- 乾癬の病因に関与する主要なインターロイキンと、観察された腸内細菌叢の変化との関連を調査すること。
主な方法:
- 36名の乾癬患者および23名の健常対照者を対象とした横断的観察研究。
- 16Sアンライコンシーケンシングによる腸内細菌叢の解析、およびELISAを用いた血清サイトカイン(IL-17、IL-22、IL-23、IL-31、IL-33、IL-36、IFN-γ、TGF-β)の定量。
主要な成果:
- 乾癬患者と健常対照群の間で腸内細菌叢に有意な違いが見られ、健常対照群ではSynergistotaの存在量が多かった。
- 乾癬患者ではSubdoligranulum、Lactobacillus、Bacteroides plebeiusの存在量が増加し、Senegalimassilia anaerobiaおよびRuminococcusの存在量が減少した。
- SubdoligranulumおよびLactobacillusの存在量と、IL-17、IL-23、TNF-αを含むいくつかの炎症性サイトカインとの間に顕著な相関が観察された。
結論:
- 乾癬患者では腸内細菌叢が著しく変化しており、特定の細菌分類群が炎症性サイトカインプロファイルと相関している。
- これらの所見は、乾癬における腸内細菌叢の関与を浮き彫りにし、新規のプロバイオティクスベースの治療戦略の可能性を示唆している。
関連する概念動画
T Cell Types and Functions
2.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
2.1K
Inflammatory Bowel Disease II: Crohn's Disease
915
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
915
Chronic Bowel Disorders: Introduction
732
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
732
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
614
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
614
Irritable Bowel Syndrome I: Introduction
890
Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
890
Inflammatory Bowel Disease I: Ulcerative Colitis
859
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
859


