突变驱动的S100A8过度表达在1型CALR-突变的MPN中产生异常的表型
Ying-Hsuan Wang1, Ying-Ju Chen1, Yi-Hua Lai1
1Division of Hematology and Oncology, Department of Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan.
International journal of molecular sciences
|May 27, 2023
概括
骨髓增殖性新生瘤 (MPN) 中不同的卡尔雷蒂库林 (CALR) 突变导致S100A8表达的变化,影响疾病表型. CALR外因子9删除 (CALRDEL) 独特地增加S100A8,影响细胞增殖和细胞亡.
科学领域:
- 分子生物学分子生物学
- 血液学 血液学 血液学
- 在瘤学瘤学.
背景情况:
- 骨髓增殖性新生瘤 (MPN) 是由像卡尔雷蒂库林 (CALR) 这样的基因突变驱动的.
- 特定的CALR前列体9突变,如1型 (CALRDEL) 和2型 (CALRINS),是最常见的.
- 尽管共享MPN病理生物学,但不同的临床表型的原因仍然不清楚.
研究的目的:
- 根据特定的CALR突变,研究MPN中差异性基因表达背后的分子机制.
- 确定受CALRDEL与CALRINS突变影响的特定基因和通路.
- 探索发现的分子差异的功能和临床相关性.
主要方法:
- 在MPN模型细胞中进行RNA测序和蛋白质/mRNA水平验证.
- 路西法酶记者测定和抑制剂治疗研究基因调节.
- 用于促进体区域的表观遗传学分析的热量测序.
- 功能性测试评估细胞增殖和细胞亡.
- 在患者队列中对基因表达的临床验证.
主要成果:
- 在CALRDEL MPN模型细胞中,S100A8被特别丰富,但在CALRINS细胞中没有.
- 鉴定出STAT3是S100A8表达的调节者,在CALRDEL促进区进行低甲基化.
- 在CALRDEL细胞中,S100A8有助于加速增殖和减少亡.
- 临床数据显示,CALRDELMPN患者的S100A8表达更高,与较少突出的血栓细胞瘤相关.
结论:
- 不同的CALR突变差异性调节特定的基因表达,如S100A8.8.
- 在S100A8促进体的表观遗传变化可能会导致S100A8水平的分歧.
- S100A8在MPN病变发生过程中起着功能性作用,并影响临床表现.
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