Navigation Links
Morphine May Help Tumors Spread in Cancer Patients
Date:11/18/2009

Lab study finds that common surgical painkillers help cancer cells thrive

WEDNESDAY, Nov. 18 (HealthDay News) -- Two new studies add to growing evidence that morphine and other opiate-based painkillers may promote the growth and spread of cancer cells.

The papers, scheduled to be presented Wednesday at an international cancer conference in Boston, also demonstrate how preventing opiates from reaching lung cancer cells reduces cancer cell proliferation, invasion and migration.

The findings from tests with cell cultures and mice suggest that the mu opiate receptor -- where morphine acts in the body -- may offer a potential treatment target.

"If confirmed clinically, this could change how we do surgical anesthesia for our cancer patients. It also suggests potential new applications for this novel class of drugs which should be explored," Patrick A. Singleton, an assistant professor of medicine at the University of Chicago and principal author of both studies, said in a university news release.

Morphine can increase tumor cell proliferation, inhibit the immune system, promote the growth of new blood vessels (angiogenesis) that feed tumors and decrease barrier function. In cancer patients undergoing surgery, decreased barrier function may make it easier for tumors to invade tissue and spread to other parts of the body, while increased angiogenesis helps tumors thrive in a new location.

Singleton and colleagues found that mice without the mu opiate receptor didn't develop tumors when injected with lung cancer cells, while normal mice did develop cancer. The researchers also found that methylnaltrexone -- developed to treat opiate-induced constipation -- reduced the proliferation of cancer cells in normal mice by 90 percent.

More information

The U.S. National Cancer Institute has more about metastatic cancer.



-- Robert Preidt



SOURCE: University of Chicago Medical Center, news release, Nov. 18, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. FDA Reverses Stance on Removal of Morphine Painkiller
2. GSU study first to confirm long-term benefits of morphine treatment in infants
3. Roxane Laboratories, Inc. Announces the Approval of Morphine Sulfate Tablets and Oral Solution
4. ETHEX Corporation Voluntarily Recalls a Single Lot of Morphine Sulfate 60 mg Extended Release Tablets Due to the Potential for Oversized Tablets
5. Morphine dependency blocked by single genetic change
6. Morphine: a comfort measure for the dying or pain control for the living?
7. Blocking Potent Oxidant Could Prevent Morphine Tolerance
8. KV Pharmaceutical Announces FDA Approval for Morphine ER 100 mg and 200 mg Tablets
9. Morphine Painkillers Wont Impair Driving
10. Wistar researchers show targeting normal cells in tumors slows growth
11. Drug shrinks lung cancer tumors in mice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... 27, 2016 , ... A revolution is underway. Brooklyn-based ... experience for the millions of people who require these medical transport services annually. ... through the use of technology. Now, SmartEMS has put forth an industry-changing app ...
(Date:6/26/2016)... ... June 26, 2016 , ... PawPaws brand pet supplements ... was developed to enhance the health of felines. The formula is all-natural and is ... herbs in the PawPaws Cat Kidney Support Supplement Soft Chews are Astragalus ...
(Date:6/25/2016)... ... , ... The temporary closing of Bruton Memorial Library on June 21 due to a possible ... often overlooked aspect of head lice: the parasite’s ability to live away from a human ... but a necessary one in the event that lice have simply gotten out of control. ...
(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)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that it ... (procalcitonin) assay as a dedicated testing solution for people ... Roche is the first IVD company in the U.S ... assessment and management. PCT is a sepsis-specific ... blood can aid clinicians in assessing the risk of ...
(Date:6/23/2016)... Capricor Therapeutics, Inc. ... company focused on the discovery, development and commercialization ... in its ongoing randomized HOPE-Duchenne clinical trial (Halt ... its 24-patient target. Capricor expects the trial to ... 2016, and to report top line data from ...
(Date:6/23/2016)... 23, 2016 Bracket , a leading clinical ... generation clinical outcomes platform, Bracket eCOA (SM) 6.0, at ... 26 – 30, 2016 in Philadelphia , ... Outcome Assessment product of its kind to fully integrate with ... Bracket eCOA 6.0 is a flexible platform for electronic clinical ...
Breaking Medicine Technology: