» Articles » PMID: 22952218

Overcoming Limitations in Nanoparticle Drug Delivery: Triggered, Intravascular Release to Improve Drug Penetration into Tumors

Overview
Journal Cancer Res
Specialty Oncology
Date 2012 Sep 7
PMID 22952218
Citations 165
Authors
Affiliations
Soon will be listed here.
Abstract

Traditionally, the goal of nanoparticle-based chemotherapy has been to decrease normal tissue toxicity by improving drug specificity to tumors. The enhanced permeability and retention effect can permit passive accumulation into tumor interstitium. However, suboptimal delivery is achieved with most nanoparticles because of heterogeneities of vascular permeability, which limits nanoparticle penetration. Furthermore, slow drug release limits bioavailability. We developed a fast drug-releasing liposome triggered by local heat that has already shown substantial antitumor efficacy and is in human trials. Here, we show that thermally sensitive liposomes (Dox-TSL) release doxorubicin inside the tumor vasculature. Real-time confocal imaging of doxorubicin delivery to murine tumors in window chambers and histologic analysis of flank tumors illustrates that intravascular drug release increases free drug in the interstitial space. This increases both the time that tumor cells are exposed to maximum drug levels and the drug penetration distance, compared with free drug or traditional pegylated liposomes. These improvements in drug bioavailability establish a new paradigm in drug delivery: rapidly triggered drug release in the tumor bloodstream.

Citing Articles

Advances in the Repurposing and Blood-Brain Barrier Penetrance of Drugs in Pediatric Brain Tumors.

Rechberger J, Toll S, Biswas S, You H, Chow W, Kendall N Cancers (Basel). 2025; 17(3).

PMID: 39941807 PMC: 11816256. DOI: 10.3390/cancers17030439.


Three-Dimensional Printing of Hydrogel Blend Tissue Engineering Scaffolds with In Situ Delivery of Anticancer Drug for Treating Melanoma Resection-Induced Tissue Defects.

Chen X, Zhang X, Zhu H, Lu H, Wang M J Funct Biomater. 2024; 15(12).

PMID: 39728181 PMC: 11678273. DOI: 10.3390/jfb15120381.


Nanomaterial-enabled drug transport systems: a comprehensive exploration of current developments and future avenues in therapeutic delivery.

Basu S, Biswas P, Anto M, Singh N, Mukherjee K 3 Biotech. 2024; 14(12):289.

PMID: 39507057 PMC: 11534931. DOI: 10.1007/s13205-024-04135-y.


Diffuse intrinsic pontine glioma (DIPG): A review of current and emerging treatment strategies.

Weisbrod L, Thiraviyam A, Vengoji R, Shonka N, Jain M, Ho W Cancer Lett. 2024; 590:216876.

PMID: 38609002 PMC: 11231989. DOI: 10.1016/j.canlet.2024.216876.


Modulated Electro-Hyperthermia Accelerates Tumor Delivery and Improves Anticancer Activity of Doxorubicin Encapsulated in Lyso-Thermosensitive Liposomes in 4T1-Tumor-Bearing Mice.

Aloss K, Bokhari S, Leroy Viana P, Giunashvili N, Schvarcz C, Szenasi G Int J Mol Sci. 2024; 25(6).

PMID: 38542073 PMC: 10970314. DOI: 10.3390/ijms25063101.


References
1.
Issels R, Lindner L, Verweij J, Wust P, Reichardt P, Schem B . Neo-adjuvant chemotherapy alone or with regional hyperthermia for localised high-risk soft-tissue sarcoma: a randomised phase 3 multicentre study. Lancet Oncol. 2010; 11(6):561-70. PMC: 3517819. DOI: 10.1016/S1470-2045(10)70071-1. View

2.
Kong G, Braun R, Dewhirst M . Characterization of the effect of hyperthermia on nanoparticle extravasation from tumor vasculature. Cancer Res. 2001; 61(7):3027-32. View

3.
Weinstein J, Magin R, Yatvin M, ZAHARKO D . Liposomes and local hyperthermia: selective delivery of methotrexate to heated tumors. Science. 1979; 204(4389):188-91. DOI: 10.1126/science.432641. View

4.
Yarmolenko P, Zhao Y, Landon C, Spasojevic I, Yuan F, Needham D . Comparative effects of thermosensitive doxorubicin-containing liposomes and hyperthermia in human and murine tumours. Int J Hyperthermia. 2010; 26(5):485-98. PMC: 2956508. DOI: 10.3109/02656731003789284. View

5.
Weinstein J, Magin R, Cysyk R, ZAHARKO D . Treatment of solid L1210 murine tumors with local hyperthermia and temperature-sensitive liposomes containing methotrexate. Cancer Res. 1980; 40(5):1388-95. View