Navigation Links
New study finds compounds show promise in blocking STAT3 signaling as treatment for osteosarcoma
Date:4/11/2011

A study appearing in the journal Investigational New Drugs and conducted by researchers at Nationwide Children's Hospital, discovered that two new small molecule inhibitors are showing promise in blocking STAT3, a protein linked to the most common malignant bone tumor, osteosarcoma. These small molecule inhibitors one derived from a portion of the turmeric spice may serve as a new, non-toxic treatment for these deadly tumors.

Osteosarcoma is aggressive and its treatment outlook has not changed significantly over the last 20 years. Treatment consists of a combination of toxic chemotherapy and aggressive surgical resection. Yet, despite these options, patients have at most a 50-to-60 percent five-year disease-free survival rate.

"The outcome for patients with advanced or metastatic osteosarcoma continues to be dismal, emphasizing the need for new therapies," said the study's lead author Jaiyuh Lin, PhD, principal investigator in the Center for Childhood Cancer in The Research Institute at Nationwide Children's Hospital. "Directly targeting STAT3 signaling represents a potential therapeutic approach to treating this type of cancer."

STAT3 is a member of a protein family that plays a role in relaying signals from cytokines and growth factors. The abnormal activation of STAT proteins is becoming more commonly associated with unrestricted cell growth and transformation of normal cells into malignant cells. Abnormal STAT3 activation has been seen in human and canine osteosarcoma cell lines and shows cancer-causing-capabilities in cultured cells and mouse models.

"Recent experiments aimed at blocking STAT3 signaling have been successful, resulting in the inhibition of growth and the induction of death in tumors," said Dr. Lin, also a faculty member at The Ohio State University College of Medicine. "They have also shown that blocking STAT3 in normal cells is neither harmful nor toxic."

Dr. Lin and his team evaluated two newly developed compounds, LLL12 and FLLL32, to determine their ability to inhibit STAT3 activity in human osteosarcoma cells. FLLL32 is derived from the dietary agent curcumin, the principal compound in the popular Indian spice turmeric.

Findings showed that both agents were able to inhibit STAT3 activity and suppressed tumor growth in the mouse model that was developed using human osteosarcoma cells, and primary osteosarcoma xenograft provided by Nationwide Children's Hospital scientist, Peter Houghton, PhD, directly from a patient.

"This study suggests that LLL12 and FLLL32 should be suitable for targeting osteosarcoma and possibly certain types of cancer cells with persistently activated STAT3," said Dr. Lin. "This approach deserves further exploration as a potential treatment of osteosarcoma."


'/>"/>

Contact: Erin Pope
Erin.Pope@NationwideChildrens.org
614-355-0495
Nationwide Children's Hospital
Source:Eurekalert

Related medicine news :

1. Tone of Voice Stays Constant Through Menstrual Cycle: Study
2. Higher Rate of Morning Heart Attacks Not Due to Blood Pressure: Study
3. Wayne State leads study to improve management of cancer pain in African Americans
4. Experimental Weight-Loss Drug Seems to Work: Study
5. Spinal Fusion for Scoliosis Seems Effective Years Later: Study
6. Warning labels better than a fat tax, University of Alberta study shows
7. Parkinsons May Have Links to Certain Cancers, Study Suggests
8. Short Bursts of Exercise Good for the Heart: Study
9. People With Epilepsy More Prone to Brain Tumors: Study
10. Research shows blood protein levels may predict risk of a cardiovascular event: Study
11. Long-term study shows that kidney transplants are faring better than previously reported
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... ... ‘17, and Jennifer Huggins, PharmD ’17, along with clinical associate professor Janice ... of cardiovascular diseases during the 15th Annual Women’s Health Conference. The SIU ...
(Date:10/13/2017)... ... October 13, 2017 , ... Ellevate Network, the leading network ... advocate for action towards gender equality at their inaugural Summit in New York City ... and reached a social audience of over 3 million. To watch the Mobilize Women ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to ... to save lost souls in the Philippines. “The Journey: From the Mountains to the ... teacher of the Bible. She has taught all ages and currently teaches a class ...
(Date:10/12/2017)... ... 12, 2017 , ... The company has developed a suite ... regulatory authorities worldwide. From Children’s to Adults 50+, every formula has been developed ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, ...
(Date:10/12/2017)... ANGELES (PRWEB) , ... October 12, 2017 , ... ... Parsa Mohebi Hair Restoration, has recently contributed a medical article to the newly ... on cosmetictown.com. Dr. Mohebi’s article spotlights the hair transplant procedure known as ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017 The Rebound mobile app ... struggle to reverse the tide of prescription drug addiction. The ... their medicine intake and stepping down their dosage in a ... launch in December 2017; the first 100,000 people to sign ... at http://www.rebound-solution.com/ ...
(Date:9/27/2017)... NEW YORK , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: ... data solutions, today announced that its MyDario product is expected to appear ... listings for when The Dr. Oz Show airs in your area: ... The nine-time Emmy award-winning, The ... ...
(Date:9/22/2017)... 22, 2017  As the latest Obamacare repeal effort ... Cassidy (R-LA) and Lindsey Graham (R-SC) ... medical device industry is in an odd place.  The ... 2.3% excise tax on medical device sales passed along ... covered patients, increased visits and hospital customers with the ...
Breaking Medicine Technology: