関連する実験動画
Updated: Sep 9, 2025
07:22
Basophil Activation Test for Allergy Diagnosis
Published on: May 31, 2021
8.5K
辺縁ベースフィルの活性化: プライマリー胆管炎の免疫病原生における隠された役割
Huan-Qin Han1,2, Jia-Min Bao2, Wei Deng2
1The First Affiliated Hospital, Jinan University, Guangzhou 510630, Guangdong Province, China.
World journal of hepatology
|September 3, 2025
まとめ
主要胆管炎 (PBC) 患者では,ベースフィル数と活性化が増加しています. これらの活性化されたベースフィルは,より多くのIL-6を放出し,Th17細胞の増殖を促し,PBCに寄与する可能性があります.
科学分野:
- 免疫学
- ヘパトロジー
- 細胞生物学
背景:
- Tヘルパー17 (Th17) 細胞とIL-17は,原発性胆管炎 (PBC) の免疫損傷を誘導する.
- インタールイウキン6 (IL-6) はTh17細胞を活性化します.
- ベースフィル由来IL-6はTh17細胞の分化と機能を促進する.
研究 の 目的:
- PBCにおけるベースフィル活性化とサイトカイン発現を調査する.
- PBCの病原性へのベースフィルの貢献を明らかにする.
主な方法:
- 65人のPBC患者,65人の慢性B型肝炎患者,そして65人の健康な対照群を対象に実施した,遡及的症例対照試験.
- フロー・サイトメトリーは,ベースフィルの割合,活性化マーカー (CD203c,CD62L),IL-6+ベースフィル,Th17細胞 (CD3+CD4+IL-17+) を分析した.
主要な成果:
- PBC患者では,CHB患者と健康な対照群よりも,ベースフィルの数値と比率が高かった.
- ベースフィル活性化マーカー (CD203c) の上昇とIL-6+ベースフィルの増加がPBCで観察されました.
- PBC患者ではTh17細胞の割合が著しく高かった.
結論:
- PBCの患者では,周辺ベースフィルの数が増加し,活性化が強化されます.
- PBCの活性化されたベースフィルはIL-6発現を増加させる.
- このIL-6はTh17細胞の増殖を促進し,PBCの病原化に寄与する.
関連する概念動画
01:24B Cell Activation and Differentiation
5.5K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
5.5K
01:24Chronic Pancreatitis I: Introduction
148
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
148
01:17Chronic Bowel Disorders: Introduction
540
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...
540