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甘氨酸CA19-9在小鼠中促进胰腺炎和胰腺癌
Dannielle D Engle1,2, Hervé Tiriac1,2, Keith D Rivera1
1Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
概括
通过激活EGFR信号,改变的糖化,特别是sialyl-Lewis a (CA19- 9) 在小鼠中引起严重的胰腺炎和胰腺癌. 这种CA19-9驱动的胰腺炎是可逆的,是潜在的治疗点.
科学领域:
- 生物化学
- 分子生物学
- 癌症学
背景情况:
- 糖化变化与炎症和癌症有关.
- 特定的甘氨酸变化对疾病发病的作用尚不清楚.
研究的目的:
- 调查sialyl-Lewis a (CA19-9) 在胰腺疾病发病过程中的作用.
- 探索CA19-9作为胰腺炎和胰腺癌的潜在治疗点.
主要方法:
- 在小鼠中诱导基转移酶3和β1,3-基转移酶5的表达,以使CA19-9复制.
- 研究CA19-9对表皮生长因子受体 (EGFR) 信号传递的影响机制.
- 已测试的治疗干预措施,包括抗体阻断和向纤维素-3和EGFR.
主要成果:
- 引起了EGFR过度激活的快速严重胰腺炎.
- 纤维素-3 的CA19-9 修饰增强了其与EGFR的相互作用.
- 阻断纤维素-3,EGFR配体或CA19- 9可以防止EGFR过度活化.
- 由CA19-9引起的胰腺炎是可逆的,可以用CA19-9抗体治疗.
- CA19-9与Kras合作促进了侵袭性胰腺癌.
结论:
- 在胰腺炎和胰腺癌的病因中,CA19-9起着至关重要的作用.
- CA19-9是胰腺疾病的潜在治疗点.
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