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:6/20/2016)... -- Securus Technologies, a leading provider of civil ... investigation, corrections and monitoring announced that after exhaustive ... the final acceptance by all three (3) Department ... (MAS) installed. Furthermore, Securus will have contracts for ... October, 2016. MAS distinguishes between legitimate wireless device ...
(Date:6/9/2016)... June 9, 2016 Paris ... Teleste,s video security solution to ensure the safety of people ... during the major tournament Teleste, an international ... and services, announced today that its video security solution will ... to back up public safety across the country. The system ...
(Date:6/2/2016)... , June 2, 2016   The Weather Company , ... Watson Ads, an industry-first capability in which consumers will be ... able to ask questions via voice or text and receive ... Marketers have long sought an advertising ... that can be personal, relevant and valuable; and can scale ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... December 5, 2016 According ... Market, by Products (Consumable, Instruments, Automated Cell Expansion ... and Stem Cell Research, Cancer, and Cell-Based Research), ... Banks) - Global Revenue, Trends, Growth, Share, Size ... Research, the global cell expansion market is expected ...
(Date:12/5/2016)... Mich. , Dec. 5, 2016 NxGen MDx announced today ... bringing the test in house, we,ve been able to improve customer service ... for patients," says Alan Mack , CEO of NxGen MDx. ... , , ... test volume has led to more job opportunities at the Grand Rapid ...
(Date:12/5/2016)... , December 5, 2016 The ... with almost $108 billion of revenue and some $890 ... were spent on global biopharmaceuticals, and this figure is ... Stock-Callers.com has lined up these four equities for assessment: ... Pharmaceuticals Inc. (NASDAQ: ACAD ), Acorda Therapeutics ...
(Date:12/4/2016)... , Dec. 3, 2016  In five studies ... Hematology (ASH) Annual Meeting and Exposition in ... engineering methods to improve the delivery of life-saving treatments ... new methods are designed to carry therapies directly to ... most, which could provide a substantial advantage over traditional, ...
Breaking Biology Technology: