中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Ligand-specific binding forces of LFA-1 and Mac-1 in neutrophil adhesion and crawling

文献类型:期刊论文

作者Li N(李宁); Yang H(杨浩); Wang ML; Lv SQ(吕守芹); Zhang Y(章燕); Long M(龙勉)
刊名MOLECULAR BIOLOGY OF THE CELL
出版日期2018-02-15
卷号29期号:4页码:408-418
ISSN号1059-1524
DOI10.1091/mbc.E16-12-0827
英文摘要Lymphocyte function-associated antigen-1 (LFA-1) and macrophage-1 antigen (Mac-1) and their counterreceptors such as intercellular cell adhesion molecules (ICAM-1 and ICAM-2), junctional adhesion molecules (JAM-A, JAM-C), and receptors for advanced glycation end products (RAGE) are crucial for promoting polymorphonuclear leukocyte (neutrophil, PMN) recruitment. The underlying mechanisms of ligand-specific bindings in this cascade remain incompletely known. We compared the dynamic force spectra for various LFA-1/Mac1-ligand bonds using single-molecule atomic force microscopy (AFM) and tested their functions in mediating PMN recruitment under in vitro shear flow. Distinct features of bond rupture forces and lifetimes were uncovered for these ligands, implying their diverse roles in regulating PMN adhesion on endothelium. LFA-1 dominates PMN adhesion on ICAM-1 and ICAM-2, while Mac-1 mediates PMN adhesion on RAGE, JAM-A, and JAM-C, which is consistent with their bond strength. All ligands can trigger PMN spreading and polarization, in which Mac-1 seems to induce outside-in signaling more effectively. LFA-1-ICAM-1 and LFA-1/Mac-1-JAM-C bonds can accelerate PMN crawling under high shear stress, presumably due to their high mechanical strength. This work provides new insight into basic molecular mechanisms of physiological ligands of beta 2 integrins in PMN recruitment.
分类号二类
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WOS关键词INFLAMMATORY CELL RECRUITMENT ; HIGH-STRENGTH STATES ; BETA(2) INTEGRIN ; ENDOTHELIAL-CELLS ; SHEAR-FLOW ; IN-VIVO ; TRANSENDOTHELIAL MIGRATION ; CONFORMATIONAL-CHANGES ; LEUKOCYTE RECRUITMENT ; MOLECULE-1 ICAM-1
WOS研究方向Cell Biology
语种英语
WOS记录号WOS:000425859100005
资助机构National Natural Science Foundation of China [31230027, 31110103918, 31300776] ; Strategic Priority Research Program and Frontier Science Key Project of Chinese Academy of Sciences [XDA01030102, XDB22040101, QYZDJ-SSW-JSC018] ; National Key Research and Development Program of China [2016YFA0501601] ; Visiting Scholar Foundation of the Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education [CQKLBST-2015-002]
源URL[http://dspace.imech.ac.cn/handle/311007/77801]  
专题力学研究所_国家微重力实验室
作者单位1.Chinese Acad Sci, Ctr Biomech & Bioengn, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Mech, Beijing Key Lab Engn Construct & Mechanobiol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
4.Chongqing Univ, Minist Educ, Key Lab Biorheol Sci & Technol, Chongqing 400044, Peoples R China
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GB/T 7714
Li N,Yang H,Wang ML,et al. Ligand-specific binding forces of LFA-1 and Mac-1 in neutrophil adhesion and crawling[J]. MOLECULAR BIOLOGY OF THE CELL,2018,29(4):408-418.
APA 李宁,杨浩,Wang ML,吕守芹,章燕,&龙勉.(2018).Ligand-specific binding forces of LFA-1 and Mac-1 in neutrophil adhesion and crawling.MOLECULAR BIOLOGY OF THE CELL,29(4),408-418.
MLA 李宁,et al."Ligand-specific binding forces of LFA-1 and Mac-1 in neutrophil adhesion and crawling".MOLECULAR BIOLOGY OF THE CELL 29.4(2018):408-418.

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来源:力学研究所

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