Multi-walled carbon nanotube length as a critical determinant of bioreactivity with primary human pulmonary alveolar cells

Research output: Contribution to journalArticlepeer-review

Standard

Multi-walled carbon nanotube length as a critical determinant of bioreactivity with primary human pulmonary alveolar cells. / Sweeney, Sinbad; Berhanu, Deborah; Misra, Superb K.; Thorley, Andrew J.; Valsami-jones, Eugenia; Tetley, Teresa D.

In: Carbon, Vol. 78, 11.2014, p. 26-37.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{f53930ab05ae45b1bbcadc5faa1a9d9c,
title = "Multi-walled carbon nanotube length as a critical determinant of bioreactivity with primary human pulmonary alveolar cells",
abstract = "Multiwalled carbon nanotube (MWCNT) length is suggested to critically determine their pulmonary toxicity. This stems from in vitro and in vivo rodent studies and in vitro human studies using cell lines (typically cancerous). There is little data using primary human lung cells. We addressed this knowledge gap, using highly relevant, primary human alveolar cell models exposed to precisely synthesised and thoroughly characterised MWCNTs. In this work, transformed human alveolar type-I-like epithelial cells (TT1), primary human alveolar type-II epithelial cells (ATII) and alveolar macrophages (AM) were treated with increasing concentrations of MWCNTs before measuring cytotoxicity, inflammatory mediator release and MAP kinase signalling. Strikingly, we observed that short MWCNTs (∼0.6 μm in length) induced significantly greater responses from the epithelial cells, whilst AM were particularly susceptible to long MWCNTs (∼20 μm). These differences in the pattern of mediator release were associated with alternative profiles of JNK, p38 and ERK1/2 MAP kinase signal transduction within each cell type. This study, using highly relevant target human alveolar cells and well defined and characterised MWCNTs, shows marked cellular responses to the MWCNTs that vary according to the target cell type, as well as the aspect ratio of the MWCNT.",
author = "Sinbad Sweeney and Deborah Berhanu and Misra, {Superb K.} and Thorley, {Andrew J.} and Eugenia Valsami-jones and Tetley, {Teresa D.}",
year = "2014",
month = nov,
doi = "10.1016/j.carbon.2014.06.033",
language = "English",
volume = "78",
pages = "26--37",
journal = "Carbon",
issn = "0008-6223",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Multi-walled carbon nanotube length as a critical determinant of bioreactivity with primary human pulmonary alveolar cells

AU - Sweeney, Sinbad

AU - Berhanu, Deborah

AU - Misra, Superb K.

AU - Thorley, Andrew J.

AU - Valsami-jones, Eugenia

AU - Tetley, Teresa D.

PY - 2014/11

Y1 - 2014/11

N2 - Multiwalled carbon nanotube (MWCNT) length is suggested to critically determine their pulmonary toxicity. This stems from in vitro and in vivo rodent studies and in vitro human studies using cell lines (typically cancerous). There is little data using primary human lung cells. We addressed this knowledge gap, using highly relevant, primary human alveolar cell models exposed to precisely synthesised and thoroughly characterised MWCNTs. In this work, transformed human alveolar type-I-like epithelial cells (TT1), primary human alveolar type-II epithelial cells (ATII) and alveolar macrophages (AM) were treated with increasing concentrations of MWCNTs before measuring cytotoxicity, inflammatory mediator release and MAP kinase signalling. Strikingly, we observed that short MWCNTs (∼0.6 μm in length) induced significantly greater responses from the epithelial cells, whilst AM were particularly susceptible to long MWCNTs (∼20 μm). These differences in the pattern of mediator release were associated with alternative profiles of JNK, p38 and ERK1/2 MAP kinase signal transduction within each cell type. This study, using highly relevant target human alveolar cells and well defined and characterised MWCNTs, shows marked cellular responses to the MWCNTs that vary according to the target cell type, as well as the aspect ratio of the MWCNT.

AB - Multiwalled carbon nanotube (MWCNT) length is suggested to critically determine their pulmonary toxicity. This stems from in vitro and in vivo rodent studies and in vitro human studies using cell lines (typically cancerous). There is little data using primary human lung cells. We addressed this knowledge gap, using highly relevant, primary human alveolar cell models exposed to precisely synthesised and thoroughly characterised MWCNTs. In this work, transformed human alveolar type-I-like epithelial cells (TT1), primary human alveolar type-II epithelial cells (ATII) and alveolar macrophages (AM) were treated with increasing concentrations of MWCNTs before measuring cytotoxicity, inflammatory mediator release and MAP kinase signalling. Strikingly, we observed that short MWCNTs (∼0.6 μm in length) induced significantly greater responses from the epithelial cells, whilst AM were particularly susceptible to long MWCNTs (∼20 μm). These differences in the pattern of mediator release were associated with alternative profiles of JNK, p38 and ERK1/2 MAP kinase signal transduction within each cell type. This study, using highly relevant target human alveolar cells and well defined and characterised MWCNTs, shows marked cellular responses to the MWCNTs that vary according to the target cell type, as well as the aspect ratio of the MWCNT.

U2 - 10.1016/j.carbon.2014.06.033

DO - 10.1016/j.carbon.2014.06.033

M3 - Article

VL - 78

SP - 26

EP - 37

JO - Carbon

JF - Carbon

SN - 0008-6223

ER -