Navigation Links
UNC scientist proves potential of new nanoparticle design for cancer therapy
Date:9/20/2011

CHAPEL HILL, N.C. - A new type of nanoparticle developed in the laboratories at the University of North Carolina has shown potential for more effective delivery of chemotherapy to treat cancer. Wenbin Lin, PhD, Kenan Distinguished Professor of Chemistry and Pharmacy, and colleagues report their finding in the Sept. 14, 2011 issue of Angewandte Chemie, the German-based flagship chemistry journal.

In laboratory studies, Lin and colleagues developed and tested a new type of nanoparticle that can deliver larger amounts of a drug and will not leak the drug as the particle circulates through the blood stream on its way to the target.

In the proof-of-concept experiments, they tested the nanoparticle's ability to deliver therapeutic doses of the chemotherapy drug oxaliplatin to colon and pancreatic tumors. The oxaliplatin-based particles showed significant growth inhibition of pancreatic tumors that are extremely difficult to treat. The nanoparticle has two to three times therapeutic efficacy over oxaliplatin.

The nanoparticle is different from other nanoparticles in its very high drug loading and in the ability to release in the chemotherapeutics in a controlled fashion. The release of therapeutic cargoes depends on the naturally occurring molecules that are more abundant in many tumors.

Lin explains, "The polysilsesquioxane (PSQ) particle we have developed carries extremely high loadings of oxaliplatin-based chemotherapeutics. The particles are stable under normal physiological conditions, but can be readily reduced to release the platin cargoes in highly reducing tumor microenvironments that have high concentrations of reducing agents. As a result, they have very little background release and are more easily targeted to tumors than most existing particles. We need to thoroughly determine the pharmacokinetics and other important properties of the PSQparticle in order to translate this particle platform to the clinic."


'/>"/>

Contact: Dianne Shaw
dgs@med.unc.edu
919-966-7834
University of North Carolina School of Medicine
Source:Eurekalert  

Related medicine news :

1. NIH scientists find earliest known evidence of 1918 influenza pandemic
2. A*STAR scientists make headway for cancer treatment and cancer prevention with landmark discovery
3. To treat rare disease, NIH scientists repurpose FDA-approved drug
4. UT MD Anderson scientists discover secret life of chromatin
5. Scientists Use Stem Cells for Blood Self-Transfusion
6. Scripps Research scientists reveal how white blood cell promotes growth and spread of cancer
7. Thank Neanderthals for That Healthy Immune System, Scientists Say
8. Scripps Research scientists define cellular pathway essential to removing damaged mitochondria
9. Scientists develop new approaches to predict the environmental safety of chemicals
10. Black Scientists Less Likely to Receive NIH Research Grants
11. Scientists show how gene variant linked to ADHD could operate
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UNC scientist proves potential of new nanoparticle design for cancer therapy
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... ... 24, 2016 , ... June 19, 2016 is World Sickle Cell Observance Day. ... the benefits of holistic treatments, Serenity Recovery Center of Marne, Michigan, has ... , Sickle Cell Disease (SCD) is a disorder of the red blood cells, which ...
(Date:6/24/2016)... San Francisco, CA (PRWEB) , ... June 24, ... ... at CitiDent, is now offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has ... , self-ligating Damon brackets , AcceleDent, and accelerated osteogenic orthodontics. , ...
(Date:6/24/2016)... ... 24, 2016 , ... EB Medicine presented its first-ever “Issue ... conference in Ponte Vedra Beach, FL. The awards honor the outstanding work of ... and Pediatric Emergency Medicine Practice. , “With this award, we recognize the ...
(Date:6/24/2016)... ... ... National recruitment firm Slone Partners is pleased to announce the ... as Vice President of North American Capital Sales at HTG Molecular . ... team in the commercialization of the HTG EdgeSeq system and associated reagents in North ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Research and Markets has announced the addition of ... report to their offering. ... The World Market for Companion Diagnostics covers the world market ... the report includes the following: , World ... Region (N. America, EU, ROW), 2015-2020 , World IVD ...
(Date:6/23/2016)...  MedSource announced today that it has selected ... of choice.  This latest decision demonstrates MedSource,s commitment ... clients by offering a state-of-the-art electronic data capture ... as the EDC platform of choice in exchange ... has long been a preferred EDC platform by ...
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced ... BRAHMS PCT (procalcitonin) assay as a dedicated testing solution ... this clearance, Roche is the first IVD company in ... sepsis risk assessment and management. PCT is ... levels in blood can aid clinicians in assessing the ...
Breaking Medicine Technology: