Featured Research

from universities, journals, and other organizations

How Tumors Prevent Immune Cell Entry

Date:
August 22, 2007
Source:
Journal of Clinical Investigation
Summary:
For a number of cancers the presence of immune cells known as an NKT cells in the tumor is associated with a better prognosis. It has therefore been suggested that more aggressive tumors have developed strategies to prevent them from being infiltrated by NKT cells. A new study shows that this is the case. The pathway used by tumors to prevent NKT cell infiltration might provide researchers with new targets for the development of new treatments for cancer.

For a number of cancers the presence of immune cells known as an NKT cells in the tumor is associated with a better prognosis. It has therefore been suggested that more aggressive tumors have developed strategies to prevent them from being infiltrated by NKT cells.

Related Articles


A new study, published online on August 16 in advance of publication in the September print issue of the Journal of Clinical Investigation, shows that this is the case. The pathway used by tumors to prevent NKT cell infiltration might provide researchers with new targets for the development of new treatments for cancer.

In the study, Leonid Metelitsa and colleague from Childrens Hospital Los Angeles show in vitro that expression of a protein known as MYCN, which has been associated with many different types of cancer, by neuroblastoma cells decreases their secretion of a soluble factor (CCL2) that attracts NKT cells.

Similarly, in mice, NKT cells were largely inhibited from invading neuroblastomas overexpressing MYCN. Furthermore, individuals with neuroblastomas that expressed high levels of MYCN and whose cancer had spread to the bone marrow had substantially fewer NTK cells in their bone marrow than individuals with neuroblastomas that expressed low levels of MYCN and whose cancer had spread to the bone marrow.

The authors therefore suggest that enhancing NKT cell localization to the tumor should be considered when designing new cancer therapeutics.

Article: Oncogene MYCN regulates localization of NKT cells to the site of disease in neuroblastoma


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Cite This Page:

Journal of Clinical Investigation. "How Tumors Prevent Immune Cell Entry." ScienceDaily. ScienceDaily, 22 August 2007. <www.sciencedaily.com/releases/2007/08/070818085336.htm>.
Journal of Clinical Investigation. (2007, August 22). How Tumors Prevent Immune Cell Entry. ScienceDaily. Retrieved March 6, 2015 from www.sciencedaily.com/releases/2007/08/070818085336.htm
Journal of Clinical Investigation. "How Tumors Prevent Immune Cell Entry." ScienceDaily. www.sciencedaily.com/releases/2007/08/070818085336.htm (accessed March 6, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, March 6, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Bupa Eyes India Healthcare Opportunities

Bupa Eyes India Healthcare Opportunities

Reuters - Business Video Online (Mar. 5, 2015) Bupa is hoping to expand in India&apos;s fast-growing health insurance market, once a rule change on foreign investment is implemented. The British private healthcare group&apos;s CEO tells Grace Pascoe why it&apos;s so keen on the new opportunity. Video provided by Reuters
Powered by NewsLook.com
Doctor in Your Pocket Is Getting Smarter

Doctor in Your Pocket Is Getting Smarter

Reuters - Business Video Online (Mar. 5, 2015) Mobile apps are turning smartphones into a personal doctors, with users able to measure heart rate, blood pressure and even blood sugar. But will it change our behaviour? Ivor Bennett reports from the Mobile World Congress in Barcelona. Video provided by Reuters
Powered by NewsLook.com
AbbVie Inks $21B Deal To Buy Cancer Drugmaker Pharmacyclics

AbbVie Inks $21B Deal To Buy Cancer Drugmaker Pharmacyclics

Newsy (Mar. 5, 2015) AbbVie announced Wednesday it will buy cancer drugmaker Pharmacyclics in a $21 billion deal. Video provided by Newsy
Powered by NewsLook.com
Toddlers Drinking Coffee? Why You Shouldn't Share Your Joe

Toddlers Drinking Coffee? Why You Shouldn't Share Your Joe

Newsy (Mar. 5, 2015) A survey of Boston mothers and toddlers found that 15 percent of two-year-olds drink coffee and 2.5 percent of 1-year-olds. 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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