Navigation Links
A New Strategy to Control Breast Cancer

A recent study finds that, TACE inhibitors currently developed for treating rheumatoid arthritis can also be employed to control proliferation of tumor cells. TACE is// strongly present in a form of breast cancer, which responds poorly to current therapies.

TACE (tumor necrosis factor-alpha-converting enzyme) acts like a “molecular scissors” that releases a pair of ligands, called Amphiregulin and TGF-alpha, from the cell surface. These ligands activate EGFR.

EGFR, which stands for Epidermal Growth Factor Receptor, is the protein on the outer surface of a cell that is activated by EGF and related growth factors and signals for the cell to divide. Given that one of the hallmarks of cancer is cell division run amok, the reduction of high levels of EGFR activity has long been a primary target for anti-cancer drug development. So far, however, drugs aimed at directly inhibiting EGFR activity have met with only limited success in the cancer clinic, primarily in a small number of lung cancers.

Bissell and Kenny, researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have demonstrated that by targeting TACE (also known as ADAM17) with either molecular inhibitors or short interfering RNAs (siRNAs) that silence the TACE gene, the shedding of Amphiregulin and TGF-alpha ligands could effectively be blocked.

This also resulted in the inhibition of EGFR signaling and the reversion of malignant characteristics in tumor cells. It is the first reported use of protease inhibitors to stop breast cancer cell proliferation and restore the normal breast tissue structure.

Tumor cells, says Bissell, exist in the same microenvironment as healthy cells and must therefore appropriate normal physiological processes to facilitate their growth and spread. This idea can open up potential new avenues and targets for diagnostic and therapeutic applications.

“Because of this, we turned our attention to the processes that regulate the production of the ligands which bind and activate EGFR,” Kenny said. “We reasoned that this binding and activation is essential for EGFR activation and that finding a way to block this interaction might prove to be an important additional approach to explore for inhibition of this pathway.”

“We have designed an entirely new way of targeting EGFR signaling in breast cancer,” said Kenny. “Almost all the work to date has involved the use of antibodies that stick to kinases or drugs that block kinase activities.”

“Women with those types of tumors would seem to be poorly served by existing treatments and may stand to benefit from therapies that are based on the inhibition of TACE activity,” said Kenny. “We would like to see some of the companies who have developed the new generation TACE inhibitors for treatment of rheumatoid arthritis also consider evaluating them in cancer patients.”

“TACE inhibition has the potential to be an effective means of stopping tumor growth for EGFR-dependent cancers outside the breast as well,” she added.

Source-Erekalert
SRM
'"/>




Related medicine news :

1. Novel Strategy To Combat Alzheimer’s Disease
2. "Defensive Pessimism" Before Exam Results Not a Good Strategy
3. WHO Devises New Global Strategy To Fight Tuberculosis
4. HER-2 Positive Breast Cancer Patients May Benefit With a Combo Drug Strategy
5. West Nile Virus Can Be Tackled By New Strategy
6. Australia Set To Implement A national Strategy Tackle Cannabis Abuse
7. Clement Urged to Plot a National Pharmaceutical Strategy
8. New Preventive Strategy to Fight Childhood Obesity
9. Rae unveils Health-care Strategy
10. A Promising New Vaccination Strategy for Late-Stage Melanoma
11. Effective Strategy Against Bird flu-Spainish Flu Vaccine Raises Hopes
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) ... a collection of specialty vendors and unique items from across the nation, this holiday-themed ... and wellness services offered by the VNA. The boutique will be open Saturday, ...
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and ... explains one of the most popular and least understood books in the Holy Scriptures, ... puzzling descriptions that have baffled scholars for centuries. Many have tossed it off as ...
(Date:10/13/2017)... ... ... Journey: From the Mountains to the Mission Field”: the story of a missionary couple ... From the Mountains to the Mission Field” is the creation of published author, Carole ... and currently teaches a class of ladies at her church, which she has taught ...
(Date:10/12/2017)... Francisco, CA (PRWEB) , ... October 12, 2017 ... ... Dr. Cheng, are now treating sleep apnea using cutting-edge Oventus O2Vent ... apnea, a serious sleep disorder characterized by frequent cessation in breathing. Oral appliances ...
(Date:10/12/2017)... Fla. (PRWEB) , ... October 12, 2017 , ... IsoComforter, ... therapy products, announced today the introduction of an innovative new design of the shoulder ... pad so you get maximum comfort while controlling your pain while using cold therapy. ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... , Oct. 11, 2017  True Health, ... has amplified its effort during National Breast Cancer ... hereditary cancer risks. ... Clinical Oncology calculated that more than 10 million ... inherited mutations in BRCA1 or BRCA2 and have not ...
(Date:10/10/2017)... 10, 2017   West Pharmaceutical Services, Inc. ... injectable drug administration, today shared the results of a ... improving the intradermal administration of polio vaccines. The study ... in May 2017 by Dr. Ondrej Mach , ... Health Organization (WHO), and recently published in the journal ...
(Date:10/4/2017)... 2017  South Korean-based healthcare product Development Company I.M. ... on Kickstarter. The device will educate the user about ... better efficiency compared to the dated and pricey CPR ... efficacy of the compression for a more informed CPR ... to raise $5,000. ...
Breaking Medicine Technology: