Featured Research

from universities, journals, and other organizations

Taking aim at metastatic lung tumors

Date:
June 15, 2010
Source:
Cell Press
Summary:
A new study uses a sophisticated genomic analysis to unravel some of the complex cellular signals that drive the deadly invasive spread of lung cancer. The research identifies specific molecules involved in the often fatal metastasis of a common type of non-small cell lung cancer and uses this information to design effective therapeutic strategies.

A new study uses a sophisticated genomic analysis to unravel some of the complex cellular signals that drive the deadly invasive spread of lung cancer. The research, published by Cell Press in the June issue of the journal Cancer Cell, identifies specific molecules involved in the often fatal metastasis of a common type of non-small cell lung cancer (NSCLC) and uses this information to design effective therapeutic strategies.

"Previous cancer genomics studies have established a number of oncogene and tumor suppressor pathways as important for the initiation and maintenance of NSCLC," explains senior study author, Dr. Kwok-Kin Wong from the Dana-Farber Cancer Institute in Boston. "However, the molecular alterations necessary for invasion and metastases of NSCLC are less well-defined. Because metastasis causes much of the morbidity and incurability of cancer, there is an urgent need to elucidate the events underlying this biological process.

Dr. Wong and colleagues had recently shown that the loss of the Lkb1 tumor suppressor gene in a significant population of lung tumors results in metastasis in mice. Although the Lkb1 gene has also been linked with about 30% of human lung cancers, the pathways responsible for the metastatic effects had not been identified. To gain insight into the signaling pathways that underlie Lkb1-deficient lung tumors, the research team performed a comprehensive analysis of the genomic and signaling protein signatures of primary and metastatic lung tumors.

Loss of Lkb1 in mouse and human lung cancer cells was associated with an increase in the activity of proteins that are known to modulate cell motility and adhesion. Importantly, combined pharmacological inhibition of these key regulatory proteins in Lkb1-deficient cells decreased cell migration and induced tumor regression.

"Our analyses of primary and metastatic Lkb1-deficient mouse lung tumors have shown that progression to metastatic lung cancer is associated with unique gene and protein signatures," concludes Dr. Wong. "Importantly, our findings indicate that despite the complex transcriptional and signaling changes that occur in the setting of Lkb1 loss and progression of NSCLC, these tumors may still be addicted to isolated oncogenic events that can be successfully therapeutically targeted."


Story Source:

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


Journal Reference:

  1. Julian Carretero, Takeshi Shimamura, Klarisa Rikova, Autumn L. Jackson, Matthew D. Wilkerson, Christa L. Borgman, Matthew S. Buttarazzi, Benjamin A. Sanofsky, Kate L. McNamara, Kathleyn A. Brandstetter, Zandra E. Walton, Ting-Lei Gu, Jeffrey C. Silva, Katherine Crosby, Geoffrey I. Shapiro, Sauveur-Michel Maira, Hongbin Ji, Diego H. Castrillon, Carla F. Kim, Carlos Garcνa-Echeverrνa, Nabeel Bardeesy, Norman E. Sharpless, Neil D. Hayes, William Y. Kim, Jeffrey A. Engelman, Kwok-Kin Wong. Integrative Genomic and Proteomic Analyses Identify Targets for Lkb1-Deficient Metastatic Lung Tumors. Cancer Cell, 2010; 17 (6): 547-559 DOI: 10.1016/j.ccr.2010.04.026

Cite This Page:

Cell Press. "Taking aim at metastatic lung tumors." ScienceDaily. ScienceDaily, 15 June 2010. <www.sciencedaily.com/releases/2010/06/100614121552.htm>.
Cell Press. (2010, June 15). Taking aim at metastatic lung tumors. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2010/06/100614121552.htm
Cell Press. "Taking aim at metastatic lung tumors." ScienceDaily. www.sciencedaily.com/releases/2010/06/100614121552.htm (accessed September 18, 2014).

Share This



More Health & Medicine News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Artificial Sweetener Could Promote Diabetes

Artificial Sweetener Could Promote Diabetes

Newsy (Sep. 17, 2014) — Doctors once thought artificial sweeteners lacked the health risks of sugar, but a new study says they can impact blood sugar levels the same way. Video provided by Newsy
Powered by NewsLook.com
Ebola Vaccine Trial Gets Underway at Oxford University

Ebola Vaccine Trial Gets Underway at Oxford University

AFP (Sep. 17, 2014) — A healthy British volunteer is to become the first person to receive a new vaccine for the Ebola virus after US President Barack Obama called for action against the epidemic and warned it was "spiralling out of control." Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Obesity Rates Steady Even As Americans' Waistlines Expand

Obesity Rates Steady Even As Americans' Waistlines Expand

Newsy (Sep. 17, 2014) — Researchers are puzzled as to why obesity rates remain relatively stable as average waistlines continue to expand. Video provided by Newsy
Powered by NewsLook.com
President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) — President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
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