矩阵金属蛋白酶-7和矩阵金属蛋白酶-9的表达在先天性肺形中被上调
Ayşe Parlak1, Seçil Ak Aksoy2, Melis Erçelik3
1Department of Pediatric Surgery, Faculty of Medicine, Bursa Uludağ University, Bursa, Türkiye.
The Turkish journal of pediatrics
|March 14, 2025
概括
矩阵金属蛋白酶 (MMPs),特别是MMP-7和MMP-9,在先天性肺形 (CLMs) 的发展中起着重要作用. 这项研究强调了它们在诸如先天性肺气道形和支气管囊等疾病中的作用.
科学领域:
- 肺部病理学 肺部病理学
- 生物化学 生物化学
- 儿科手术 儿科手术
背景情况:
- 先天性肺形 (CLMs) 是一种在出生时存在的结构性肺异常.
- 矩阵金属蛋白酶 (MMP) 是发育过程中肺组织重塑的关键酶.
- 了解MMP在CLM中的作用对于其临床病理学至关重要.
研究的目的:
- 研究各种CLM中MMP-2,MMP-7和MMP-9的表达水平.
- 为了将MMP表达与CLMs的特定类型和病理学相关联.
主要方法:
- 来自41名患有CLM的儿科患者 (0-17岁) 的肺组织分析,这些患者接受了手术.
- 反转录聚合酶连锁反应 (RT-PCR) 用于量化MMP-2,MMP-7和MMP-9的mRNA表达.
- 在CLM组织中MMP表达的比较与相邻的正常肺组织.
主要成果:
- 与正常肺组织相比,MMP-7和MMP-9在所有CLM组织中表达明显更高.
- 在先天性肺气道形 (CPAM) 和支气管囊 (BC) 中,MMP-7和MMP-9的高调特别明显.
- MMP-2表达表明CPAM水平上升的趋势,在支气管肺封存 (BPS),先天性叶膜过度膨胀 (CLO) 和BC中显著表达,但缺乏统计学意义.
结论:
- MMP-7和MMP-9在CLM,特别是CPAM和BC的病变发生过程中发挥着特定的作用.
- 这项研究提供了MMP表达模式在先天性肺形的第一个证据.
相关概念视频
01:23Role of Matrix Metalloproteases in Degradation of ECM
2.3K
Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
2.3K
01:24Regulation of Angiogenesis and Blood Supply
2.5K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.5K