PMID- 26652375 OWN - NLM STAT- MEDLINE DCOM- 20160909 LR - 20191210 IS - 1873-0191 (Electronic) IS - 0928-4931 (Linking) VI - 59 DP - 2016 Feb TI - Adhesion and internalization differences of COM nanocrystals on Vero cells before and after cell damage. PG - 286-295 LID - S0928-4931(15)30442-2 [pii] LID - 10.1016/j.msec.2015.10.012 [doi] AB - The adhesion and internalization between African green monkey kidney epithelial (Vero) cells (before and after oxidative damage by hydrogen peroxide) and calcium oxalate monohydrate (COM) nanocrystals (97+/-35nm) were investigated so as to discuss the molecular and cellular mechanism of kidney stone formation. Scanning electron microscope (SEM) was used to observe the Vero-COM nanocrystal adhesion; the nanocrystal-cell adhesion was evaluated by measuring the content of malonaldehyde (MDA), the activity of superoxide dismutase (SOD), the expression level of cell surface osteopontin (OPN) and the change of Zeta potential. Confocal microscopy and flow cytometry were used for the observation and quantitative analysis of crystal internalization. In the process of adhesion, the cell viability and the SOD activity declined, the MDA content, Zeta potential, and the OPN expression level increased. The adhesive capacity of injured Vero was obviously stronger than normal cells; in addition the injured cells promoted the aggregation of COM nanocrystals. The capacity of normal cells to internalize crystals was obviously stronger than that of injured cells. Cell injury increased adhesive sites on cell surface, thereby facilitating the aggregation of COM nanocrystals and their attachment, which results in enhanced risk of calcium oxalate stone formation. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Gan, Qiong-Zhi AU - Gan QZ AD - Department of chemistry, Jinan University, Guangzhou 510632, China;; Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China. FAU - Sun, Xin-Yuan AU - Sun XY AD - Department of chemistry, Jinan University, Guangzhou 510632, China;; Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China. FAU - Ouyang, Jian-Ming AU - Ouyang JM AD - Department of chemistry, Jinan University, Guangzhou 510632, China;; Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China. Electronic address: toyjm@jnu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151023 PL - Netherlands TA - Mater Sci Eng C Mater Biol Appl JT - Materials science & engineering. C, Materials for biological applications JID - 101484109 RN - 2612HC57YE (Calcium Oxalate) SB - IM MH - Animals MH - Calcium Oxalate/*metabolism MH - Cell Adhesion/physiology MH - Chlorocebus aethiops MH - Nanoparticles/*chemistry MH - Vero Cells OTO - NOTNLM OT - Calcium oxalate monohydrate OT - Crystal adhesion OT - Crystal internalization OT - Oxidative damage EDAT- 2015/12/15 06:00 MHDA- 2016/09/10 06:00 CRDT- 2015/12/15 06:00 PHST- 2015/07/14 00:00 [received] PHST- 2015/09/18 00:00 [revised] PHST- 2015/10/05 00:00 [accepted] PHST- 2015/12/15 06:00 [entrez] PHST- 2015/12/15 06:00 [pubmed] PHST- 2016/09/10 06:00 [medline] AID - S0928-4931(15)30442-2 [pii] AID - 10.1016/j.msec.2015.10.012 [doi] PST - ppublish SO - Mater Sci Eng C Mater Biol Appl. 2016 Feb;59:286-295. doi: 10.1016/j.msec.2015.10.012. Epub 2015 Oct 23.