Corporate Banner
Satellite Banner
RNAi
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Small Bits of Genetic Material Fight Cancer's Spread

Published: Monday, October 21, 2013
Last Updated: Monday, October 21, 2013
Bookmark and Share
A class of molecules called microRNAs may offer cancer patients two ways to combat their disease.

Researchers at Princeton University have found that microRNAs — small bits of genetic material capable of repressing the expression of certain genes — may serve as both therapeutic targets and predictors of metastasis, or a cancer's spread from its initial site to other parts of the body. The research was published in the journal Cancer Cell.

MicroRNAs are specifically useful for tackling bone metastasis, which occurs in about 70 percent of patients with late-stage cancer, said senior author Yibin Kang, Princeton's Warner-Lambert/Parke-Davis Professor of Molecular Biology. During bone metastasis, tumors invade the bone and take over the cells known as osteoclasts that normally break down old bone material as new material grows. These cells then go into overdrive and dissolve the bone far more quickly than they would during normal bone turnover, which leads to bone lesions, bone fracture, nerve compression and extreme pain.

"The tumor uses the osteoclasts as forced labor," explained Kang, who is a member of the Rutgers Cancer Institute of New Jersey and adviser to Brian Ell, a graduate student in the Princeton Department of Molecular Biology and first author on the study. Kang and Ell worked with scientists at the IRCCS Scientific Institute of Romagna for the Study and Treatment of Cancer in Meldola, Italy, and the University Cancer Center in Hamburg, Germany. In this video, Ell describes his research on using small RNAs for treating and monitoring bone metastasis.

MicroRNAs can reduce that forced labor by inhibiting osteoclast proteins and thus limiting the number of osteoclasts present. Ell and his colleagues observed that bones exhibiting metastasis developed significantly fewer lesions when injected with microRNAs. Their findings suggest that microRNAs could be effective treatment targets for tackling bone metastasis — and also may help doctors detect the cancer's spread to the bone, Kang said. Samples collected from human patients revealed a strong correlation between elevated levels of another group of microRNAs and the occurrence of bone metastasis, the researchers found.

In a commentary accompanying the study in Cancer Cell, researchers who were not associated with the work wrote, "This [study] represents significant insight into our understanding of the organ-specific function and pathological activity of miRNAs, which could lead to improvements in diagnosis, treatment and prevention of bone metastases and elucidates a unique aspect of the bone microenvironment to support tumor growth in bone." The commentary was authored by David Waning, Khalid Mohammad and Theresa Guise of Indiana University in Indianapolis.

Kang said he ultimately hopes to extend mice experimentation to clinical trials. "In the end, we want to help the patients," he said.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,100+ scientific posters on ePosters
  • More than 4,500+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Physicists, Biologists Unite to Expose How Cancer Spreads
New study has found that cancer cells that can break out of a tumor are more aggressive and nimble than nonmalignant cells.
Thursday, May 02, 2013
Nanotechnology Breakthrough could Dramatically Improve Medical Tests
A laboratory test used to detect disease and perform biological research could be made more than 3 million times more sensitive, say researchers who combined standard biological tools with a breakthrough in nanotechnology.
Tuesday, June 26, 2012
mRNA Profile Independently Predicts Prostate Cancer Prognosis
Scientists have found that classifying prostate tumors according to their mRNA expression patterns can help predict disease aggressiveness and poor prognosis in patients with low- or mid-range Gleason scores.
Wednesday, November 30, 2011
Scientific News
First Large-Scale Proteogenomic Study of Breast Cancer
The study offers understanding of potential therapeutic targets.
Early Genetic Changes in Premalignant Colorectal Tissue Identified
Findings point to drivers of early cancer development, targets for cancer prevention therapies.
Scientists Find Evidence That Cancer Can Arise Changes
Researchers at Rockefeller University have found a mutation that affects the proteins that package DNA without changing the DNA itself can cause a rare form of cancer.
Breakthrough Approach to Breast Cancer Treatment
Scripps scientists have designed a drug candidate that decreases growth of breast cancer cells.
A Guide to CRISPR Gene Activation
A comparison of synthetic gene-activating Cas9 proteins can help guide research and development of therapeutic approaches.
Testing Non-Breast/Ovarian Cancer Genes
Researchers have found that expanding gene panel beyond breast/ovarian cancer genes in these patients does not add any clinical benefit. Instead, testing has produced more questions than answers.
Myeloid-Derived Suppressor Cells Play Role in Tumor Growth
Researchers at Baylor College of Medicine have reported a new mechanism that helps cancer cells engage myeloid-derived suppressor cells.
Cancer Cells Coordinate to Form Roving Clusters
Rice University scientists identify ‘smoking gun’ in metastasis of hybrid cells.
Poliovirus Therapy Wins 'Breakthrough' Status
FDA decision will fast-track research on breakthrough Duke brain cancer therapy.
Novel Way to Prevent Deadly Bacterial Infections
Monash scientists may have found a way to stop deadly bacteria from infecting patients. The discovery could lead to a whole new way of treating antibiotic-resistant “superbugs”
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,100+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!