Navigation Links
Slipping past the blood brain barrier: Research shows potential treatment for brain cancer

A compound that kills cancer can sneak past the blood brain barrier, which protects the brain from foreign substances, to do its work in fighting a particularly invasive brain cancer, according to a new Saint Louis University animal study published in the Proceedings of the National Academy of Sciences Online Early Edition the week of Aug. 22.

"The bottom line is, if you can get drugs into the brain, you can cure brain cancer," says William A. Banks, M.D., professor of geriatrics in the department of internal medicine and professor of pharmacological and physiological science at Saint Louis University School of Medicine and a member of the research team.

The compound - JV-1-36 - is an antagonist of the hypothalamic growth hormone- releasing hormone, which has been found to cause cancerous tumors, such as malignant glioblastomas, to grow. The main known purposes of the hypothalamic growth hormone-releasing hormone usually are to trigger the hormone that makes children grow and affect how glucose is used in adults.

Researchers found that the P-gp system, an extra guardian located at the blood brain barrier that usually keeps anticancer drugs out of the brain, intercepted some of the JV-1-36 that was injected into mice but let much of it pass into the brain to treat cancer.

"The blood brain barrier is set up to very carefully patrol what it lets into the brain and what it keeps out. It makes these decisions based on the physicochemical properties," says Dr. Banks, who also is a staff physician at Veterans Affairs Medical Center in St. Louis.

"Most of our drugs that fight cancers are toxic to cancer cells and to other cells, too. That's why the blood brain barrier locks them out of the brain."

The research was done in collaboration with investigators at Tulane University School of Medicine in New Orleans, including Nobel Laureate Andrew V. Schally, Ph.D.

Dr. Banks said the findings are promising because they show a way to get drugs into the brain to treat cancer.

"There are times when there's a big difference between an animal model and the human condition. In terms of getting drugs across the blood brain barrier to fight cancer, there's not such a big difference. There's pretty much the same rules in any blood brain barrier - be it in a mouse or human."

Laura Jaeger, the lead author of the study and a doctoral student in the department of pharmacological and physiological science at Saint Louis University, calls the findings "very positive and a good first step."


'"/>

Source:Saint Louis University


Related biology news :

1. White blood cell waste disposal system plays critical regulatory role
2. Epstein-Barr virus protein crucial to its role in blood cancers
3. New insight into regulation of blood stem cells
4. Nano-bumps could help repair clogged blood vessels
5. First technology to remove prions that cause vCJD from blood launched
6. Breakthrough isolating embryo-quality stem cells from blood
7. Thai spice helps cut blood sugar swings
8. Study shows humans have ability to track odors, much like bloodhounds
9. Mad cow proteins successfully detected in blood
10. Unexpected lock and key mechanism found for the assembly of tumor blood vessels
11. Redesigned protein accelerates blood clotting
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/26/2016)... BANGALORE, India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a ... ), and Onegini today announced a partnership to ... banking solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... banks to provide their customers enhanced security to ...
(Date:4/19/2016)... , UAE, April 20, 2016 ... implemented as a compact web-based "all-in-one" system solution for ... biometric fingerprint reader or the door interface with integration ... modern access control systems. The minimal dimensions of the ... readers into the building installations offer considerable freedom of ...
(Date:4/15/2016)... Research and Markets has announced ... 2016-2020,"  report to their offering.  , ... global gait biometrics market is expected to grow ... 2016-2020. Gait analysis generates multiple variables ... to compute factors that are not or cannot ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the ... the Supplyframe Design Lab . Located in Pasadena, Calif., the Design Lab’s ... how hardware projects are designed, built and brought to market. , The Design ...
(Date:6/23/2016)... BEACH, Calif. , June 23, 2016  Blueprint ... new biological discoveries to the medical community, has closed ... co-founder Matthew Nunez . "We have ... us with the capital we need to meet our ... will essentially provide us the runway to complete validation ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... quality, regulatory and technical consulting, provides a free webinar on Performing ... July 13, 2016 at 12pm CT at no charge. , Incomplete investigations are ...
(Date:6/22/2016)... DIEGO , June 22, 2016 ... that will allow them to produce up to ... from one lot within one week. These high-quality, ... time laboriously preparing cells and spend more time ... possible through a proprietary, high-volume manufacturing process that ...
Breaking Biology Technology: