About Careers MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

Gene Lost in Childhood Cancer Crucial for Cells' Life

by Bidita Debnath on January 27, 2016 at 2:56 AM
Font : A-A+

 Gene Lost in Childhood Cancer Crucial for Cells' Life

In children, neuroblastoma is the third most common type of tumour. Its aggressive nature and the frequency of metastatic disease at diagnosis contribute to the fact that neuroblastoma accounts for almost 15 percent of childhood cancer fatalities.

For the past two decades a region on chromosome 1 that is often missing in neuroblastoma cells has been thought to harbour an important tumour suppressor gene. "Our data strongly suggest that KIF1Bβ, which is localised on chromosome 1p36, might be such a neuroblastoma tumour suppressor gene", says principal investigator Susanne Schlisio at the Department of Microbiology, Tumor and Cell Biology at Karolinska Institutet and Assistant Member at the Ludwig Institute for Cancer Research in Stockholm, Sweden.

Advertisement


Neuroblastoma tumours originate from the same transient progenitor cells-neural crest cells-that give rise to the nervous system along with other tissues. Members of some families are at higher risk than others to develop tumours that originate from these cells due to mutations in specific genes. The research team behind the new study previously discovered that genes mutated in some of the tumours play a central role in determining whether neural crest cells live or die. Neural crest cells that should ordinarily have succumbed to programmed cell death escape that fate when KIF1B-β is lost. Later in life, the cells might develop into cancer cells.

In the current study, the investigators describe the mechanisms by which KIF1B-β causes cell death. They found that KIF1B-β affects the cells' power stations, the mitochondria, by activating an enzyme named calcineurin. Schlisio and her colleagues also show that a critical signal required to induce cell death by fragmenting the mitochondria is compromised by the loss of KIF1B-β. By examining neuroblastoma tumors biopsied from patients, the researchers demonstrate that loss of KIF1B-β is associated with poor prognosis and reduced survival.
Advertisement

The team also demonstrates a general mechanism that can explain how calcium-dependent signalling by calcineurin is executed. This is a significant finding because the loss of control of calcineurin signalling seems to play a role in many diseases, including neurodegenerative disease, cardiac disease and cancers.

"We conclude that KIF1B-β plays a key role in the decision between life and death for neural crest cells and tumours originating from the neural crest", says Susanne Schlisio. "In time, knowledge of the mechanism by which KIF1B-β induce cell death might prove important in attempts to develop new neuroblastoma therapies." The research was financially supported by grants from the Ludwig Institute, the Swedish Children Cancer Foundation, the Swedish Research Council (VR) and the Swedish Cancer Society.

Source: Newswise
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Test Your Knowledge on Sugar Intake and Oral Health
Test  Your Knowledge on Heart
Test Your Knowlege on Genes
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
DNA Finger Printing Cancer and Homeopathy Acute Lymphoblastic Leukemia Cancer Facts Cancer Tattoos A Body Art Weaver Syndrome Common Lifestyle Habits that Cause Diseases Health Benefits of Dandelion Plant Brain Tumor in Children 

Most Popular on Medindia

Sanatogen Iron Intake Calculator Accident and Trauma Care Drug - Food Interactions Pregnancy Confirmation Calculator Find a Hospital Daily Calorie Requirements Hearing Loss Calculator Blood Donation - Recipients Loram (2 mg) (Lorazepam)
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

Gene Lost in Childhood Cancer Crucial for Cells' Life Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests