TY - JOUR
T1 - Rapid and continuous accumulation of nitric oxide-releasing liposomes in tumors to augment the enhanced permeability and retention (EPR) effect
AU - Yoshikawa, Takuma
AU - Mori, Yukina
AU - Feng, Haitao
AU - Phan, Khanh Quoc
AU - Kishimura, Akihiro
AU - Kang, Jeong Hun
AU - Mori, Takeshi
AU - Katayama, Yoshiki
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Challenging Research (project No. 18K19148) of MEXT , Japan. T. Yoshikawa thanks JSPS for their fellowship.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/6/30
Y1 - 2019/6/30
N2 - The modulation of blood flow to tumors is a prominent strategy for improving the tumor accumulation of nanomedicines, resulting from the enhanced permeability and retention (EPR) effect. We previously reported a promising EPR enhancer—a nitric oxide (NO) donor-containing liposome (NO-LP)—which showed enhanced accumulation in tumor tissue. Herein, we study NO-LP in greater detail to clarify its practical use as an EPR enhancer. NO-LP was found to have advantages as a NO donor, including the ability to maintain NO donation over long periods of time, and a constant rate of NO-release irrespective of the environmental pH. NO-LP showed rapid accumulation in tumor tissue after injection (1 h), and then accumulation was continuously enhanced until 48 h. Enhanced NO-LP accumulation was observed specifically in tumor, while the accumulation in other organs remained relatively unchanged. The results obtained show the promising features of NO-LP as an EPR enhancer.
AB - The modulation of blood flow to tumors is a prominent strategy for improving the tumor accumulation of nanomedicines, resulting from the enhanced permeability and retention (EPR) effect. We previously reported a promising EPR enhancer—a nitric oxide (NO) donor-containing liposome (NO-LP)—which showed enhanced accumulation in tumor tissue. Herein, we study NO-LP in greater detail to clarify its practical use as an EPR enhancer. NO-LP was found to have advantages as a NO donor, including the ability to maintain NO donation over long periods of time, and a constant rate of NO-release irrespective of the environmental pH. NO-LP showed rapid accumulation in tumor tissue after injection (1 h), and then accumulation was continuously enhanced until 48 h. Enhanced NO-LP accumulation was observed specifically in tumor, while the accumulation in other organs remained relatively unchanged. The results obtained show the promising features of NO-LP as an EPR enhancer.
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U2 - 10.1016/j.ijpharm.2019.05.043
DO - 10.1016/j.ijpharm.2019.05.043
M3 - Article
C2 - 31102802
AN - SCOPUS:85065717913
VL - 565
SP - 481
EP - 487
JO - International Journal of Pharmaceutics
JF - International Journal of Pharmaceutics
SN - 0378-5173
ER -