TY - JOUR
T1 - Bottom-up synthesis of carbon nanoparticles with higher doxorubicin efficacy
AU - Bayda, Samer
AU - Hadla, Mohamad
AU - Palazzolo, Stefano
AU - Kumar, Vinit
AU - Caligiuri, Isabella
AU - Ambrosi, Emmanuele
AU - Pontoglio, Enrico
AU - Agostini, Marco
AU - Tuccinardi, Tiziano
AU - Benedetti, Alvise
AU - Riello, Pietro
AU - Canzonieri, Vincenzo
AU - Corona, Giuseppe
AU - Toffoli, Giuseppe
AU - Rizzolio, Flavio
PY - 2017/2/28
Y1 - 2017/2/28
N2 - Nanomedicine requires intelligent and non-toxic nanomaterials for real clinical applications. Carbon materials possess interesting properties but with some limitations due to toxic effects. Interest in carbon nanoparticles (CNPs) is increasing because they are considered green materials with tunable optical properties, overcoming the problem of toxicity associated with quantum dots or nanocrystals, and can be utilized as smart drug delivery systems. Using black tea as a raw material, we synthesized CNPs with a narrow size distribution, tunable optical properties covering visible to deep red absorption, non-toxicity and easy synthesis for large-scale production. We utilized these CNPs to label subcellular structures such as exosomes. More importantly, these new CNPs can escape lysosomal sequestration and rapidly distribute themselves in the cytoplasm to release doxorubicin (doxo) with better efficacy than the free drug. The release of doxo from CNPs was optimal at low pH, similar to the tumour microenvironment. These CNPs were non-toxic in mice and reduced the tumour burden when loaded with doxo due to an improved pharmacokinetics profile. In summary, we created a new delivery system that is potentially useful for improving cancer treatments and opening a new window for tagging microvesicles utilized in liquid biopsies.
AB - Nanomedicine requires intelligent and non-toxic nanomaterials for real clinical applications. Carbon materials possess interesting properties but with some limitations due to toxic effects. Interest in carbon nanoparticles (CNPs) is increasing because they are considered green materials with tunable optical properties, overcoming the problem of toxicity associated with quantum dots or nanocrystals, and can be utilized as smart drug delivery systems. Using black tea as a raw material, we synthesized CNPs with a narrow size distribution, tunable optical properties covering visible to deep red absorption, non-toxicity and easy synthesis for large-scale production. We utilized these CNPs to label subcellular structures such as exosomes. More importantly, these new CNPs can escape lysosomal sequestration and rapidly distribute themselves in the cytoplasm to release doxorubicin (doxo) with better efficacy than the free drug. The release of doxo from CNPs was optimal at low pH, similar to the tumour microenvironment. These CNPs were non-toxic in mice and reduced the tumour burden when loaded with doxo due to an improved pharmacokinetics profile. In summary, we created a new delivery system that is potentially useful for improving cancer treatments and opening a new window for tagging microvesicles utilized in liquid biopsies.
KW - Cancer
KW - Carbon nanoparticles
KW - Doxorubicin
KW - Drug delivery
KW - Nanotechnology
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UR - http://www.scopus.com/inward/citedby.url?scp=85010007272&partnerID=8YFLogxK
U2 - 10.1016/j.jconrel.2017.01.022
DO - 10.1016/j.jconrel.2017.01.022
M3 - Article
C2 - 28093297
AN - SCOPUS:85010007272
VL - 248
SP - 144
EP - 152
JO - Journal of Controlled Release
JF - Journal of Controlled Release
SN - 0168-3659
ER -