Featured Research

from universities, journals, and other organizations

Engineered bacteria effectively target tumors, enabling tumor imaging potential in mice

Date:
January 27, 2012
Source:
Public Library of Science
Summary:
Tumor-targeted bioluminescent bacteria have been shown for the first time to provide accurate 3-D images of tumors in mice, further advancing the potential for targeted cancer drug delivery.

(a) Whole Body 3D co-registration of lux, FLuc and µCT. Combined luminescence and µCT demonstrating co-localisation of B. breve (bacterial lux - orange) and subcutaneous HCT116-luc2 tumour (FLuc - green). (b) Intratumoural Imaging. Combined µCT and luminescence imaging. Magnification of subcutaneous tumour from mouse in (a), top, side and base view. Viable tumour (FLuc green/blue), vasculature (contrast agent – red) and bacterial (orange/yellow) signals are visualised.
Credit: Michelle Cronin, Ali R. Akin, Sara A. Collins, Jeff Meganck, Jae-Beom Kim, Chwanrow K. Baban, Susan A. Joyce, Gooitzen M. van Dam, Ning Zhang, Douwe van Sinderen, Gerald C. O'Sullivan, Noriyuki Kasahara, Cormac G. Gahan, Kevin P. Francis, Mark Tangney. High Resolution In Vivo Bioluminescent Imaging for the Study of Bacterial Tumour Targeting. PLoS ONE, 2012; 7 (1): e30940 DOI: 10.1371/journal.pone.0030940

Tumor-targeted bioluminescent bacteria have been shown for the first time to provide accurate 3-D images of tumors in mice, further advancing the potential for targeted cancer drug delivery, according to a study published in the Jan. 25 issue of the online journal PLoS ONE.

Related Articles


The specially engineered probiotic bacteria, like those found in many yogurts, were intravenously injected into mice with tumors, after which the researchers took full body bioluminescent images. The 3-D images revealed information about the number and location of the bacteria, to the level of precisely revealing where within the tumor the bacteria were living, providing much more information on the interaction of bacteria and tumors than was previously available using similar two-dimensional imaging methods.

According to the authors, led by Mark Tangney of University College Cork in Ireland, "before now, researchers used luminescence to provide an approximation of where a test organism was within the body, and would then follow up with multiple further experiments using different techniques to try to find a precise location."

This new research suggests that such bacteria can be engineered to contain diagnostic or therapeutic agents that would be produced specifically within the tumor for targeted treatment.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Michelle Cronin, Ali R. Akin, Sara A. Collins, Jeff Meganck, Jae-Beom Kim, Chwanrow K. Baban, Susan A. Joyce, Gooitzen M. van Dam, Ning Zhang, Douwe van Sinderen, Gerald C. O'Sullivan, Noriyuki Kasahara, Cormac G. Gahan, Kevin P. Francis, Mark Tangney. High Resolution In Vivo Bioluminescent Imaging for the Study of Bacterial Tumour Targeting. PLoS ONE, 2012; 7 (1): e30940 DOI: 10.1371/journal.pone.0030940

Cite This Page:

Public Library of Science. "Engineered bacteria effectively target tumors, enabling tumor imaging potential in mice." ScienceDaily. ScienceDaily, 27 January 2012. <www.sciencedaily.com/releases/2012/01/120125172319.htm>.
Public Library of Science. (2012, January 27). Engineered bacteria effectively target tumors, enabling tumor imaging potential in mice. ScienceDaily. Retrieved October 26, 2014 from www.sciencedaily.com/releases/2012/01/120125172319.htm
Public Library of Science. "Engineered bacteria effectively target tumors, enabling tumor imaging potential in mice." ScienceDaily. www.sciencedaily.com/releases/2012/01/120125172319.htm (accessed October 26, 2014).

Share This



More Plants & Animals News

Sunday, October 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) — Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) — Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) — One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) — Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. 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

 

Plants & Animals

Earth & Climate

Fossils & Ruins

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