Abstract
Carbon nanomaterials, include carbon nanotubes and graphene nanosheets, have drawn an increasing amount of attention because of their potential applications in daily life or in providing novel therapeutic possibilities for treating diseases. However, the overall biocompatibility, the potential toxic effects of carbon nanomaterials toward human cells, and their modulations in cellular mechanism, are not fully understood. Herein, four types of carbon nanomaterials, include long and short carbon nanotubes and graphene nanosheets, at low and high concentrations, were functionalized and dispersed in the biocompatible buffer for assessment. The surface structure, the morphology, and chemical composition of carbon nanomaterials were characterized. Also, biological assays investigating cellular viability, vitality, cell cycle, and apoptotic cell death were applied on cells co-incubated with nanomaterials, to evaluate the biocompatibility of these nanomaterials in human cells. Our data suggested that even though co-incubation of nanomaterials did not seem to affect the viability of cells notably, high concentrations (50 ug/ml) of SW could lead to unhealthy cells, and we observed dramatic G2 arrest effect mediated by p21 induction in high SW incubated cells. Other nanomaterials at high concentration may also alter cell cycle profile of the cells. In summary, our data demonstrated that these nanomaterials could regulate cell cycle and lead to apoptosis at high concentrations, and the underling molecular mechanisms have been addressed. Caution should be taken on their concentration when nanomaterials are in used in future medical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 14-21 |
| Number of pages | 8 |
| Journal | Journal of Biotechnology |
| Volume | 296 |
| DOIs | |
| Publication status | Published - Apr 20 2019 |
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Keywords
- Apoptosis
- Biocompatibility
- Carbon nanomaterials
- Cell cycle
- Toxicity
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Applied Microbiology and Biotechnology
Cite this
Carboxylated carbon nanomaterials in cell cycle and apoptotic cell death regulation. / Lee, Kuen Chan; Lo, Pei Ying; Lee, Guang Yu; Zheng, Jia Huei; Cho, Er Chieh.
In: Journal of Biotechnology, Vol. 296, 20.04.2019, p. 14-21.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Carboxylated carbon nanomaterials in cell cycle and apoptotic cell death regulation
AU - Lee, Kuen Chan
AU - Lo, Pei Ying
AU - Lee, Guang Yu
AU - Zheng, Jia Huei
AU - Cho, Er Chieh
PY - 2019/4/20
Y1 - 2019/4/20
N2 - Carbon nanomaterials, include carbon nanotubes and graphene nanosheets, have drawn an increasing amount of attention because of their potential applications in daily life or in providing novel therapeutic possibilities for treating diseases. However, the overall biocompatibility, the potential toxic effects of carbon nanomaterials toward human cells, and their modulations in cellular mechanism, are not fully understood. Herein, four types of carbon nanomaterials, include long and short carbon nanotubes and graphene nanosheets, at low and high concentrations, were functionalized and dispersed in the biocompatible buffer for assessment. The surface structure, the morphology, and chemical composition of carbon nanomaterials were characterized. Also, biological assays investigating cellular viability, vitality, cell cycle, and apoptotic cell death were applied on cells co-incubated with nanomaterials, to evaluate the biocompatibility of these nanomaterials in human cells. Our data suggested that even though co-incubation of nanomaterials did not seem to affect the viability of cells notably, high concentrations (50 ug/ml) of SW could lead to unhealthy cells, and we observed dramatic G2 arrest effect mediated by p21 induction in high SW incubated cells. Other nanomaterials at high concentration may also alter cell cycle profile of the cells. In summary, our data demonstrated that these nanomaterials could regulate cell cycle and lead to apoptosis at high concentrations, and the underling molecular mechanisms have been addressed. Caution should be taken on their concentration when nanomaterials are in used in future medical applications.
AB - Carbon nanomaterials, include carbon nanotubes and graphene nanosheets, have drawn an increasing amount of attention because of their potential applications in daily life or in providing novel therapeutic possibilities for treating diseases. However, the overall biocompatibility, the potential toxic effects of carbon nanomaterials toward human cells, and their modulations in cellular mechanism, are not fully understood. Herein, four types of carbon nanomaterials, include long and short carbon nanotubes and graphene nanosheets, at low and high concentrations, were functionalized and dispersed in the biocompatible buffer for assessment. The surface structure, the morphology, and chemical composition of carbon nanomaterials were characterized. Also, biological assays investigating cellular viability, vitality, cell cycle, and apoptotic cell death were applied on cells co-incubated with nanomaterials, to evaluate the biocompatibility of these nanomaterials in human cells. Our data suggested that even though co-incubation of nanomaterials did not seem to affect the viability of cells notably, high concentrations (50 ug/ml) of SW could lead to unhealthy cells, and we observed dramatic G2 arrest effect mediated by p21 induction in high SW incubated cells. Other nanomaterials at high concentration may also alter cell cycle profile of the cells. In summary, our data demonstrated that these nanomaterials could regulate cell cycle and lead to apoptosis at high concentrations, and the underling molecular mechanisms have been addressed. Caution should be taken on their concentration when nanomaterials are in used in future medical applications.
KW - Apoptosis
KW - Biocompatibility
KW - Carbon nanomaterials
KW - Cell cycle
KW - Toxicity
UR - http://www.scopus.com/inward/record.url?scp=85063038396&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063038396&partnerID=8YFLogxK
U2 - 10.1016/j.jbiotec.2019.02.005
DO - 10.1016/j.jbiotec.2019.02.005
M3 - Article
VL - 296
SP - 14
EP - 21
JO - Journal of Biotechnology
JF - Journal of Biotechnology
SN - 0168-1656
ER -