微生物转质氨酶 - 食品添加剂,可能是原发性胆道胆道炎的诱导因素
Alicja Bauer1, Paulina Rosiek2, Tomasz Bauer2
1Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, PL-01-813 Warsaw, Poland.
Molecules (Basel, Switzerland)
|February 26, 2025
概括
微生物转质氨酶 (mTG) 是一种食品添加剂,可以通过模仿人类抗原来触发自身免疫. 这项研究发现了mTG和与原发性胆道胆道炎 (PBC) 相关的抗原之间的交叉反应,这表明在自身免疫性疾病的发展中可能发挥作用.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 微生物转胺酶 (mTG) 是一种细菌酶,用于食品添加剂.
- mTG可以形成免疫原性表位,可能导致自身免疫.
- 初级胆道胆炎 (PBC) 是一种与特定自身抗体相关的自身免疫性肝病.
研究的目的:
- 为了研究mTG和PBC特异性抗原之间的表位相似性和交叉反应性.
- 探索mTG在通过分子模拟诱导自身免疫的潜在作用.
主要方法:
- 使用针对mTG的单克隆和多克隆抗体的ELISA技术.
- 测试mTG对9种不同的PBC特异性抗原的反应性.
- 使用PBC患者血清进行体外研究,以评估mTG对抗原-抗体结合的影响.
主要成果:
- mTG抗体与九种PBC抗原中的四种显著反应,特别是gp210和PML蛋白.
- 四个PBC特异性抗原与mTG序列共享同质性.
- mTG 抑制了与 PDC M2,gp210,PML 和 KLHL12 蛋白质的特定抗原-抗体结合.
结论:
- 像mtg这样的微生物模仿者可能是与人类抗原交叉反应的目标.
- mTG和PBC相关抗原之间的交叉反应性表明与PBC等自身免疫性疾病的发展有联系.
相关概念视频
Chronic Pancreatitis I: Introduction
61
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...
61
Gastritis-II: Pathophysiology
208
Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
208
Chronic Bowel Disorders: Introduction
378
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...
378


