Navigation Links
Faster genetic testing method will likely transform care for patients with breast cancer
Date:3/26/2014

Faster and cheaper DNA sequencing techniques will likely improve care for patients with breast cancer but also create challenges for clinicians as they counsel patients on their treatment options. Those are among the conclusions of a study published recently in the BJS (British Journal of Surgery). The findings provide insights into how genetic advances will soon be affecting patient care.

When a woman is diagnosed with breast cancer, it's important to know as much about her tumour as possible to determine the best treatment. Most cases of breast cancer are sporadic, but a minority are hereditary and caused by one or more mutations in genes such as BRCA1 or BRCA2. To find such genetic mutations in newly diagnosed patients, researchers must sequence the woman's DNA, which is generally a relatively slow process that generates results weeks or months after patients have started treatment. Next generation sequencing (NGS) is a newer method of sequencing DNA that processes large amounts of data. It's faster and more expensive than conventional sequencing, but in recent years it has become cheaper and more widely accessible by rapid advances in computing power. With the use of NGS, which will soon become the mainstay of clinical genetics, breast cancer units will likely be able to get the results of genetic testing before patients begin their breast cancer treatment.

In a collaboration between breast surgeons and medical geneticists at the Norfolk & Norwich University Hospital and Addenbrooke's Hospital in Cambridge, UK, Simon Pilgrim, MD, and his colleagues searched the medical literature to identify relevant studies relating to breast cancer genetics and then looked to see what impact NGS will have on breast cancer units as well as what opportunities will arise for improving treatment for patients.

The researchers found that because NGS will allow breast cancer clinicians to know whether patients carry high-risk mutations (which might increase their risk of developing another breast cancer in the same or other breast in the future) before the start of treatment, more women might opt for mastectomy instead of breast-conserving surgery or for double rather than single mastectomy. Dr Pilgrim noted that some of the mutations that are detected might also confer increased risks of developing other cancers, which would indicate the need to monitor at-risk patients closely for these cancers as well. "The converse is also true," he said. "NGS can be used to find genetic mutations in people with other hereditary cancers or conditions. For example, a woman with ovarian cancer might be found to have a BRCA1 mutation, and hence breast units must be prepared to handle questions about the management of breast cancer risk in patients referred by other specialties." Dr Pilgrim added that NGS will have implications for the relatives of people found to have mutations linked to breast or other cancers, and therefore family members may also wish to undergo testing after appropriate counseling.

In the longer term, being able to identify patients with breast cancer who carry certain gene mutations before they start treatment will help researchers conduct clinical trials to establish which treatments are best for carriers of particular mutations. Dr Pilgrim noted that research already suggests that BRCA1-associated breast cancer is more responsive to certain chemotherapy drugs than sporadic breast cancers are.


'/>"/>
Contact: Evelyn Martinez
sciencenewsroom@wiley.com
201-748-6358
Wiley
Source:Eurekalert

Related biology news :

1. Faster anthrax detection could speed bioterror response
2. A faster way to flag bacteria-tainted food -- and prevent illness
3. Faster testing of new pharmaceuticals
4. The bigger the tree, the faster it grows
5. Trees grow faster and store more carbon as they age
6. EU policy is driving up demand for pollination faster than honeybee numbers
7. Ultrafast heating of water -- This pot boils faster than you can watch it
8. New technique identifies pathogens in patient samples faster, in great detail
9. Tidy knots are faster
10. New method to diagnose sepsis is faster, cheaper
11. Snow melts faster under trees than in open areas in mild climates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2016)... SAN FRANCISCO and BANGALORE, India ... part of EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... service provider, today announced a global partnership that ... convenient way to use mobile banking and payment services. ... Mobility is a key innovation area for financial services, but ...
(Date:4/26/2016)... BANGALORE, India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a ... ), and Onegini today announced a partnership to ... banking solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... banks to provide their customers enhanced security to ...
(Date:4/19/2016)... , UAE, April 20, 2016 ... be implemented as a compact web-based "all-in-one" system solution ... the biometric fingerprint reader or the door interface with ... of modern access control systems. The minimal dimensions of ... ID readers into the building installations offer considerable freedom ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016   EpiBiome , a ... $1 million in debt financing from Silicon Valley Bank ... automation and to advance its drug development efforts, as ... facility. "SVB has been an incredible strategic ... services a traditional bank would provide," said Dr. ...
(Date:6/23/2016)... NEWPORT BEACH, Calif. , June 23, 2016 /PRNewswire/ ... offering new biological discoveries to the medical community, has ... and co-founder Matthew Nunez . "We ... provide us with the capital we need to meet ... funding will essentially provide us the runway to complete ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... a new line of intelligent tools designed, tuned and optimized exclusively for Okuma ... 12–17 in Chicago. The result of a collaboration among several companies with expertise ...
(Date:6/22/2016)... , June 22, 2016  According to Kalorama ... generation sequencing (NGS) market include significant efforts in ... sequencers.  More accessible and affordable sequencers, say the ... demand for consumables including sample prep materials.  The ... for Sample Preparation for Next Generation Sequencing (NGS) ...
Breaking Biology Technology: