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New biomarkers for neuroblastoma, a type of cancer in children

13 March, 2018

NEW STUDY. Two new biomarkers for a type of cancer in children called neuroblastoma have been identified in a study published in the journal Cancer Cell. The findings are expected to have immediate significance for disease prognosis, and eventually also for treatment.

Chandrasekhar Kanduri. Photo: Margareta Gustafsson Kubista.

“There is a need for new methods of treatment for high-risk patients, and that’s where our research can lead to truly great benefits,” says Chandrasekhar Kanduri, professor of medical biochemistry and cell biology at Sahlgrenska Academy.

Neuroblastoma is the most common form of childhood cancer of the peripheral nervous system, the part of the system that is not the brain or spinal cord. The disease can occur in the chest, neck, abdomen and adrenal glands and also spread to the spinal column. Symptoms may be general aches, anemia and skeletal pains.

When the disease is detected, the children are 17 months old on average and rarely over five years old. Milder variants of neuroblastoma may heal on their own in some cases, while the aggressive cases are the most deadly form of childhood cancer. Treatment is successful in less than half of these cases.

Better prognoses

Identification of high risk patients is crucial, and this is where the new findings come in. With the support of patient data from Sweden (59 cases) and Germany (498 cases), researchers have identified two new types of RNA molecules that control the stability of tumor proteins and that, along with an already known RNA molecule, form a trio that can indicate how serious the condition of an individual patient is.

What can be measured, immediately after a diagnosis is made, is the strength of the three RNA molecules’ gene expression. With a stronger expression, there is less scope for a particular tumor-inducing protein to stabilize itself, and vice versa.

This also has to do with a tug of war between the identified RNA molecules (6p22 lncRNAs) and the specific protein (USP36) in which a reading of relative strength can contribute to a better disease prognosis. Researchers believe this points to a near-term application in health care.

Treatment for severe cases

Eventually epigenetic drugs, which alter gene expression, may also play an important role in treatment of the disease.

Professor Chandrasekahr Kanduri (in the middle) together with postdoc Prasanna Kumar (left) and postdoctoral research fellow Tanmoy Mondal (right). Photo by Margareta Gustafsson Kubista.

“Epigenetic drugs activate the RNA molecules in question and thereby forestall the tumor, and in this way it will be possible to go in and treat high-risk patients,” Chandrasekhar Kanduri says. “Our findings pave the way for development of drugs in the field, and we have close collaboration with clinical researchers in both Sweden and Germany.”

Title: Sense-antisense lncRNA pair encoded by locus 6p22.3 determines neuroblastoma susceptibility via USP36-CHD7-SOX9 regulatory axis

TEXT: MARGARETA GUSTAFSSON KUBISTA

Link: http://www.cell.com/cancer-cell/fulltext/S1535-6108(18)30020-5

By: Elin Lindström
Tagged With: Cancerforskning, institutionen för biomedicin

HAPPY SUMMER!

The newsletter from Akademiliv will return on Wednesday, August 21st.

Contact your institute to add your event to the calendar in the Staff Portal

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Information from Sahlgrenska Academy Research Support Office

[UPDATED JUNE 2024]
The Sahlgrenska Academy Research Support Office provides an overview of upcoming and current calls, nominations and events in an information letter. This letter is updated on a monthly basis.
Current and previous newsletters are also available in the Staff Portal.

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