Boda Francisc, Banfai Krisztina, Garai Kitti, Kovacs Bela, Almasi Attila, Scheffer Dalma, Sinkler Reka Lambertne, Csonka Robert, Czompoly Tamas, Kvell Krisztian
Department F1, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, Romania.
Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Pecs, Pecs, Hungary.
J Venom Anim Toxins Incl Trop Dis. 2020 Dec 14;26:e20200057. doi: 10.1590/1678-9199-JVATITD-2020-0057.
Certain environmental toxins permanently damage the thymic epithelium, accelerate immune senescence and trigger secondary immune pathologies. However, the exact underlying cellular mechanisms and pathways of permanent immune intoxication remain unknown. The aim of the present study was to demonstrate gene expressional changes of apoptosis-related cellular pathways in human thymic epithelial cells following exposure to snake venom from and
Snake venoms were characterized by analytical methods including reversed phase high-performance liquid chromatography and sodium dodecyl sulphate-polyacrylamide gel electrophoresis, then applied on human thymic epithelial cells (1889c) for 24 h at 10 μg/mL (as used in previous TaqMan Array study). Gene expressional changes restricted to apoptosis were assayed by TaqMan Array (Human Apoptosis Plate).
The most prominent gene expressional changes were shown by (≈ 2.5 million-fold, confirmed by dedicated quantitative polymerase chain reaction) and (0.016-fold) for and (6.46-fold) and (0.30-fold) for
The observed apoptotic environment suggests that pyroptosis may be the dominant pathway through which and snake venoms trigger thymic epithelial apoptosis following envenomation.
某些环境毒素会永久性损伤胸腺上皮,加速免疫衰老并引发继发性免疫病理。然而,永久性免疫中毒的确切潜在细胞机制和途径仍不清楚。本研究的目的是证明人胸腺上皮细胞在暴露于[蛇种名称]蛇毒后凋亡相关细胞途径的基因表达变化。
通过反相高效液相色谱和十二烷基硫酸钠-聚丙烯酰胺凝胶电泳等分析方法对蛇毒进行表征,然后以10μg/mL的浓度(如先前TaqMan阵列研究中所使用的)作用于人胸腺上皮细胞(1889c)24小时。通过TaqMan阵列(人类凋亡板)测定限于凋亡的基因表达变化。
[蛇种名称1]显示出最显著的基因表达变化(约250万倍,经专用定量聚合酶链反应确认),[凋亡相关基因1]为0.016倍;[蛇种名称2]时[凋亡相关基因2]为6.46倍,[凋亡相关基因3]为0.30倍。
观察到的凋亡环境表明,细胞焦亡可能是[蛇种名称1]和[蛇种名称2]蛇毒在注入毒液后触发胸腺上皮细胞凋亡的主要途径。