Corporate Banner
Satellite Banner
Technology Networks Header
Wednesday, November 26, 2014
Technology Networks
 
Register | Sign in
Home Page > Videos > Tumour Regression after Intravenous Administration of Novel Tumour-targeted Nanomedicines
  Videos

Return

Tumour Regression after Intravenous Administration of Novel Tumour-targeted Nanomedicines
SELECTBIO

The possibility of using genes as medicines to treat cancer is limited by the lack of safe and efficacious delivery systems able to deliver therapeutic genes selectively to tumours by intravenous administration, without secondary effects to healthy tissues. In order to remediate to this problem, we investigated if the conjugation of the polypropylenimine dendrimer to transferrin, whose receptors are overexpressed on numerous cancers, could result in a selective gene delivery to tumours after intravenous administration, leading to an increased therapeutic efficacy. The objectives of this study are to evaluate the targeting and therapeutic efficacies of a novel transferrin-bearing polypropylenimine dendrimer. The intravenous administration of transferrin-bearing polypropylenimine polyplex resulted in gene expression mainly in the tumours. Consequently, the intravenous administration of the delivery system complexed to a therapeutic DNA encoding TNF led to a rapid and sustained tumour regression over one month (90% complete response, 10% partial response on A431 human epidermoid tumours). It also resulted in tumour suppression for 60% of PC-3 and 50% of DU145 prostate tumours. The treatment was well tolerated by the animals, with no apparent signs of toxicity. Transferrin-bearing polypropylenimine is therefore a highly promising delivery system for cancer therapy

Request more information
Company product page



For access to this article, enter your email address to instantly recieve a Password Reset link.

Please enter your email address below:

Existing users please Sign In here. Don't have an account? Register Here for free access.

Don't have an account? | Register Here

Scientific News
Precisely Off The Mark
Possible cause discovered for failure of targeted liver cancer therapies.
Novel Cancer Vaccine Approach for Brain Tumors
Researchers unravel the mechanisms behind a novel cancer vaccine for brain tumors, paving the way for further development.
New Test Developed at Dana-Farber/Brigham and Women's Cancer Center
Rapid Heme Panel - A high-tech genetic test that speeds treatment decisions for blood cancer patients.
Researchers Silence Leading Cancer-Causing Gene
A novel siRNA-based molecule successfully targets KRAS, a well-studied but hard to halt protein important for cancer development and metastasis.
Tumor Suppressor Also Inhibits Key Property Of Stem Cells
The retinoblastoma protein inhibits cancer by controlling cell division. Now, researchers have shown that it also binds to and inhibits genes necessary for pluripotency.
Almac Announces Launch of CLIA Validated Next Generation Sequencing Assay
P53 considered important biomarker for cancer drug discovery.
Next-Gen Melanoma Drug Excels in Lab Tests
Anti-cancer activity was reported in 10 out of 11 patient tumor samples grown in mice and treated with the experimental drug TAK-733.
Study Identifying Cell of Origin for Large, Disfiguring Nerve Tumors
Lays groundwork for development of new therapies.
Light Shed On Genetic Architecture Of Kidney Cancer
Research reveals link between renal cell carcinoma and exposure to aristolochic acid.
Salk Scientists Discover a Key to Mending Broken Hearts
Researchers regenerate and heal mouse hearts by using the molecular machinery the animals had all along.
Scroll Up
Scroll Down
SELECTBIO
SELECTBIO Market Reports
Follow TechNetcom1 on Twitter
Technology Networks Ltd. on LinkedIn
Go to LabTube.tv