识别多个加勒素作为β-1,3-葡萄糖的受体
Xuejiao Xu1, Zhen He1, Yuanning Wang1
1Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun, 130024, China.
研究人员发现,加勒素与β-1,3-葡萄糖结合,扩大了这些强大的免疫调节器的已知受体. 这一发现突出了质素作为免疫反应调节的潜在治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 葡萄糖生物学 葡萄糖生物学
- 生物化学 生物化学
背景情况:
- β-1,3-葡萄糖是一种天然的多糖,存在于细菌和真菌的细胞壁中.
- 它们是已知的免疫调节剂,与Dectin-1和CD204.4等受体相互作用.
- 贝塔-1,3-葡萄糖受体的全谱仍然不完全理解.
研究的目的:
- 为了确定beta-1,3-glucans的新型受体.
- 描述beta-1,3-glucans与已识别的受体之间的结合相互作用.
- 探索这些相互作用对免疫反应的功能后果.
主要方法:
- 使用了血液凝结抑制,生物层干扰测量 (BLI) 和微尺度热泳 (MST) 试验.
- 测试了来自不同来源的各种 galectins (Gal-1 到 -9) 与β-1,3-glucans的结合.
- 评估了加列克介导的细胞过程的调制.
主要成果:
- 鉴定出多个甲状素 (Gal-1, -2, -3, -4, -7, -8, -9) 作为β-1,3-葡萄糖的直接结合伙伴.
- 证明了纳米分子到微分子的结合亲和力,与Dectin-1和CD204.4的亲和力相当或超过它们.
- 表明β-1,3-葡萄糖会影响加勒因介导的细胞激活和细胞亡.
结论:
- 扩大了已知的β-1,3-葡萄糖的受体谱,包括几种 galectins.
- 提供了对β-1,3-葡萄糖的免疫调节机制的新见解.
- 定位了加勒素作为有前途的治疗点,用于调节抗真菌和癌症免疫疗法环境中的免疫反应.
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