Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Live imaging reveals how wound healing influences cancer

01.07.2015

Researchers in the United Kingdom and Denmark have studied the "see-through" larvae of zebrafish to reveal how wound healing leads to skin cancer. Live imaging shows neutrophils, the protective inflammatory cells of the body's immune system, diverted from an induced wound to any nearby precancerous skin cells. The newly arrived neutrophils cause rapid division of these skin cells, which may cause them to progress to melanoma. The results are published in The EMBO Journal.

"Our results provide direct visual evidence of a physical link between wound-associated inflammation and the development of skin cancer," says EMBO Member Paul Martin, professor at Bristol University and the University of Cardiff.


The neutrophils (red) swarm around nearby precancerous cells (green) where they trigger cell division and progression of melanoma.

Courtesy of Paul Martin, University of Bristol

"White blood cells, in particular neutrophils, that typically serve as part of the body's built-in immune system are usurped by nearby precancerous skin cells in a way that leads to the proliferation of tumour cells in our zebrafish model experimental system of human melanoma."

Scientists have known for some time that inflammation is one of the ten hallmarks of cancer. Cancer has also been described as a "wound that does not heal." However details about how physical damage to body tissues might influence the progress of cancer have remained scarce.

The researchers used genetically modified larvae of zebrafish to watch the relationship between wound-associated inflammation and melanoma as the cancer took hold in the living fish. The cellular events and changes were observed by live imaging with a special confocal laser-scanning microscope.

In further experiments, the researchers were also able to show that a specific type of signaling molecule released by neutrophils, prostaglandin E2, is part of the signal that drives the splurge of cell growth linked to the cancer in their experimental system.

High levels of neutrophils were also detected in human clinical samples of melanomas that had been obtained from individuals whose cancers had open ulcers. Importantly, neutrophils were linked to increased proliferation of melanoma cells and poor survival, which suggests that these findings in fish may have considerable relevance to cancer patients.

The authors note that the findings of the study may have implications for cancer surgery. Minimally invasive surgery is beneficial to cancer patients in many situations and often the preferred treatment. However, particularly in cases where all cancerous tissue cannot be removed, the inflammatory response might influence the remaining cancer cells in the body.

"Our studies to date suggest that several strategies might improve outcomes for patients including the possible use of therapeutics to dampen damage-induced inflammatory responses," adds Martin.

Further work is in progress to better understand the relationship between the inflammatory response and skin cancer in the zebrafish model system. Studies are also needed to investigate what therapeutic or other strategies might bring better interventions for patients who have adverse tissue inflammation due to planned (for example biopsy or surgery) or unplanned (e.g. ulceration) tissue damage.

###

The wound inflammatory response exacerbates growth of pre-neoplastic cells and progression to cancer.

Nicole Antonio, Marie Louise Bønnelykke-Behrndtz, Laura Ward, John Collin, Ib Jarle Christensen, Torben Steiniche, Henrik Schmidt, Yi Feng, Paul Martin

The paper will be available at 1200 Central European Time at emboj.embopress.org. Please send an e-mail to barry.whyte@embo.org if you require a copy of the paper during the embargo period.

For further information on The EMBO Journal please consult emboj.embopress.org.

Video: Neutrophils (red) swarm around nearby precancerous cells (green) where they trigger cell division and progression of cancer.

Media contacts:

Barry Whyte
barry.whyte@embo.org

Karin Dumstrei
Karin.dumstrei@embo.org
+49 6221 8891 406
The EMBO Journal

About EMBO

EMBO is an organization of more than 1700 leading researchers that promotes excellence in the life sciences. The major goals of the organization are to support talented researchers at all stages of their careers, stimulate the exchange of scientific information, and help build a European research environment where scientists can achieve their best work.

EMBO helps young scientists to advance their research, promote their international reputations and ensure their mobility. Courses, workshops, conferences and scientific journals disseminate the latest research and offer training in techniques to maintain high standards of excellence in research practice. EMBO helps to shape science and research policy by seeking input and feedback from our community and by following closely the trends in science in Europe.
For more information visit: http://www.embo.org.

Barry Whyte | EurekAlert!

More articles from Health and Medicine:

nachricht The genes are not to blame
20.07.2018 | Technische Universität München

nachricht Targeting headaches and tumors with nano-submarines
20.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>