Featured Research

from universities, journals, and other organizations

New treatment to overpower drug resistance in ovarian cancer

Date:
November 15, 2010
Source:
Centenary Institute
Summary:
A new treatment kills ovarian cancer cells in a way that can break the resistance mechanism -- even in those resistant to cisplatin. Researchers found the drug (FTY720) had a potent effect in human ovarian cancer cells, even in those resistant to cisplatin, the most commonly used chemotherapeutic drug currently available for the treatment of ovarian cancer.

New research from the Centenary Institute has discovered a treatment that kills ovarian cancer cells in a way that can break the resistance mechanism -- even in those resistant to cisplatin.

Drug resistance is a major obstacle in curing ovarian cancer but new research from the Centenary Institute has discovered a treatment that kills ovarian cancer cells in a new way that can break the resistance mechanism. Published in Autophagy, the researchers found the drug (FTY720) had a potent effect in human ovarian cancer cells, even in those resistant to cisplatin, the most commonly used chemotherapeutic drug currently available for the treatment of ovarian cancer.

Centenary Institute Signal Transduction Head Associate Professor Pu Xia described the findings as a breakthrough in ovarian cancer treatment because, FTY720 kills ovarian cancer cells through a unique way different to the current anti-cancer drugs. Current treatments, such as cisplatin, kill ovarian cancer cells through a way of programming cell death known as apoptosis but this is often reversible or demolished by cancer cells. However, FTY720 kills cells through an irreversible process known as necrosis so the cancer cells cannot resist, repair and relapse.

Ovarian cancer is the leading cause of death in women with gynaecological malignancies in the world.

Dr Xia said: "One of the major reasons for such a poor outcome of ovarian cancer is that the cancer cells have an ability to resist the current chemotherapeutic drugs through a protective shield, which occurs naturally or as a response to the treatment, and this survives the cancer from the treatment. Such a protective shield, uncovered by the findings from the Xia laboratory, is built, at least partially, on a catabolic process, called autophagy, by which cells eat their own non-vital components for survival under stress conditions such as starvation or chemotherapy. Remarkably, despite this survival process being activated by ovarian cancer cells during the treatment, FTY720 is still capable of killing them effectively.

While this research is a major first step toward developing a more effective treatment for ovarian cancer, the researchers claim more pre-clinical and clinical trials are needed before the drug might be used in women with ovarian cancer. However, the researchers are optimistic that the treatment would be available as a new chemotherapeutic agent within the next several years, because this drug has been approved by the US Food and Drug Administration (FDA) for use in the treatment of multiple sclerosis and is also used in multiple clinical trials for the prevention of organ transplant rejection and the treatment of various autoimmune diseases. Recent studies have also shown anti-tumour efficacy in several types of cancers but this is the first time it has been studied for the treatment of ovarian cancer.

This research was made possible by a Research Fellowship from the Cancer Institute New South Wales to Associate Professor Xia. The project also received support from the National Health and Medical Research Council and Science and Technology Council of Shanghai Municipality.


Story Source:

The above story is based on materials provided by Centenary Institute. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ning Zhang, Yanfei Qi, Carol Wadham, Lijun Wang, Alessandra Warren, Wen Di, Pu Xia. FTY720 induces necrotic cell death and autophagy in ovarian cancer cells: A protective role of autophagy. Autophagy, 2010; 6 (8): 1157 DOI: 10.4161/auto.6.8.13614

Cite This Page:

Centenary Institute. "New treatment to overpower drug resistance in ovarian cancer." ScienceDaily. ScienceDaily, 15 November 2010. <www.sciencedaily.com/releases/2010/11/101115101137.htm>.
Centenary Institute. (2010, November 15). New treatment to overpower drug resistance in ovarian cancer. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2010/11/101115101137.htm
Centenary Institute. "New treatment to overpower drug resistance in ovarian cancer." ScienceDaily. www.sciencedaily.com/releases/2010/11/101115101137.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins