scholarly journals Thrombospondin-1 and microRNA-1 expression in response to multiwalled carbon nanotubes in alveolar epithelial cells

2017 ◽  
Vol 32 (5) ◽  
pp. 1596-1606 ◽  
Author(s):  
M. Pacurari ◽  
R. Kafoury ◽  
T. Turner ◽  
S. Taylor ◽  
P. B. Tchounwou
2009 ◽  
Vol 23 (5) ◽  
pp. 333-344 ◽  
Author(s):  
Prabakaran Ravichandran ◽  
Adaikkappan Periyakaruppan ◽  
Bindu Sadanandan ◽  
Vani Ramesh ◽  
Joseph C. Hall ◽  
...  

2012 ◽  
Vol 26 (6) ◽  
pp. 831-840 ◽  
Author(s):  
Cinzia Lucia Ursini ◽  
Delia Cavallo ◽  
Anna Maria Fresegna ◽  
Aureliano Ciervo ◽  
Raffaele Maiello ◽  
...  

2013 ◽  
Vol 27 (5) ◽  
pp. 286-286 ◽  
Author(s):  
Prabakaran Ravichandran ◽  
Adaikkappan Periyakaruppan ◽  
Bindu Sadanandan ◽  
Vani Ramesh ◽  
Joseph C. Hall ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Anurag Mishra ◽  
Yon Rojanasakul ◽  
Bean T. Chen ◽  
Vincent Castranova ◽  
Robert R. Mercer ◽  
...  

Multiwalled carbon nanotubes have been shown to possess unusual fibrogenic activityin vivoand are currently the focus of intense toxicological investigations. This study further determines the fibrogenic potential of well-dispersed MWCNT in human lung cell culture models and to develop a novel platform for understanding the cellular mechanisms of MWCNT-induced lung fibrosis. Survanta, a natural lung surfactant, showed effectiveness in dispersing agglomerates of MWCNT to fine structures similar in size to aerosolized one. At relevant low doses (0.002–0.2 μg/cm2), MWCNT exhibited a dose-dependent bio-effect on the human lung epithelial cells which is more pronounced in dispersed-MWCNT compared to non-dispersed form. Significantly elevated levels of fibrogenic mediators, such as transforming growth factor-β1 and matrix metalloprotienases-9 were observed in the dispersed-MWCNT treated lung epithelial cells. Based on previousin vivostudies showing that dispersed-MWCNT penetrated the interstitium and caused rapid interstitial fibrosis, we evaluated the potential direct interaction between lung fibroblasts and MWCNT. Direct stimulation of human lung fibroblast cell proliferation, collagen expression and fibroblast growth factor-2 were observed which suggests novel mechanisms of MWCNT-induced lung fibrosis. Our results indicate that the dispersion status of MWCNT determines their fibrogenic activity which is consistent within vivofindings.


APOPTOSIS ◽  
2010 ◽  
Vol 15 (12) ◽  
pp. 1507-1516 ◽  
Author(s):  
Prabakaran Ravichandran ◽  
Sudhakar Baluchamy ◽  
Bindhu Sadanandan ◽  
Ramya Gopikrishnan ◽  
Santosh Biradar ◽  
...  

Pneumologie ◽  
2014 ◽  
Vol 68 (06) ◽  
Author(s):  
S Seehase ◽  
B Baron-Luehr ◽  
C Kugler ◽  
E Vollmer ◽  
T Goldmann

Sign in / Sign up

Export Citation Format

Share Document