Vimentin regulates nuclear segmentation in neutrophils

Vimentin regulates nuclear segmentation in neutrophils
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波形蛋白调节中性粒细胞的核分割

DOI:
10.1073/pnas.2307389120
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发表时间:
2023
影响因子:
11.1
通讯作者:
Qiang Guo
Qiang Guo
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Jiaqi Liu;Zhixun Li;Meijing Li;Wenjing Du;Wolfgang Baumeister;Jing Yang;Qiang Guo

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中性粒细胞是人体内最丰富的免疫细胞,其核呈重度分节,但其亚细胞形态的机制尚不完全清楚。本研究利用冷冻电子断层扫描成像小鼠中性粒细胞,并确定波形蛋白,细胞质中间丝蛋白,作为一个关键蛋白参与核分割。波形蛋白的基因缺失减少了中性粒细胞和嗜酸性粒细胞的核叶数量,模拟了Pelger-Huët异常。这些发现提供了独特的核形态的中性粒细胞,这可能有重要的意义,了解他们的免疫功能在各种病理生理背景下的见解。此外,这项研究强调了细胞质中间丝蛋白在塑造细胞核结构中的潜在广泛参与,为细胞生物学开辟了一条令人兴奋的研究途径。
Significance Neutrophils, the most abundant immune cells in the body, exhibit heavily segmented nuclei, but the mechanism responsible for this subcellular morphology is incompletely understood. This study utilized cryo-electron tomography to image mouse neutrophils and identified vimentin, a cytoplasmic intermediate-filament protein, as a key protein involved in nuclear segmentation. The genetic deletion of vimentin reduced the number of nuclear lobes of neutrophils and eosinophils, mimicking the Pelger–Huët anomaly. These findings offer insights into the unique nuclear morphology of neutrophils, which may have important implications for understanding their immune functions in various pathophysiological contexts. In addition, this study highlights the potentially broad involvement of cytoplasmic intermediate-filament proteins in shaping the structure of nuclei, opening an exciting research avenue in cell biology.
DOI: 10.1146/annurev-pathol-020712-164023
发表时间: 2014
期刊: Annual review of pathology
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