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.

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 July 25, 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 July 25, 2014).

Share This




More Plants & Animals News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Boy Attacked by Shark in Florida

Boy Attacked by Shark in Florida

Reuters - US Online Video (July 24, 2014) — An 8-year-old boy is bitten in the leg by a shark while vacationing at a Florida beach. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) — The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Dogs Appear To Become Jealous Of Owners' Attention

Dogs Appear To Become Jealous Of Owners' Attention

Newsy (July 23, 2014) — A U.C. San Diego researcher says jealousy isn't just a human trait, and dogs aren't the best at sharing the attention of humans with other dogs. Video provided by Newsy
Powered by NewsLook.com
Professor Creates Site Revealing Where People's Cats Live

Professor Creates Site Revealing Where People's Cats Live

Newsy (July 23, 2014) — ​It's called I Know Where Your Cat Lives, and you can keep hitting the "Random Cat" button to find more real cats all over the world. 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