BRCA1 Gene News and Research

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BRCA1 is a gene on chromosome 17 that normally helps to suppress cell growth. A person who inherits certain mutations (changes) in a BRCA1 gene has a higher risk of getting breast, ovarian, prostate, and other types of cancer.

New breast cancer genes detected using cutting edge technology

Scientists in the UK say they have detected four new genes believed to be involved in the development of breast cancer.

4 Aug 2005

Protein called cyclin D1 disrupts BRCA1's normal role as a cancer inhibitor

For about a decade, scientists have recognized that many cases of hereditary breast cancer result from a mutation of a specific gene called BRCA1, which, in its normal state, helps keep tumor formation in check. About five to 10 percent of breast cancer cases are linked to genetic miscues, about half of which are linked to BRCA1.

2 Aug 2005

Harmful chemicals may reprogram gene response to estrogen

New research shows that exposure to harmful chemicals and drugs during critical developmental periods early in life may actually "reprogram" the way certain genes respond to the female hormone estrogen. This genetic reprogramming may determine whether people with a genetic predisposition for a disease actually develop the disease.

1 Jun 2005

Environment factors can interact with genetics to increase disease risk

31 May 2005

Exposure to pharmaceutical estrogen during fetal development can permanently "reprogram" tissue in a way that determines whether tumors will develop in adulthood

Researchers at The University of Texas M. D. Anderson Cancer Center may have uncovered the reason why some people who are genetically predisposed to hormone-dependent cancers develop the disease as an adult, while others who are similarly susceptible don't.

30 May 2005

Combined MRI and mammography more effective at detecting breast cancer in high risk women

Annual screening, using magnetic resonance imaging (MRI) and X-ray mammography, is the best way to detect breast cancer in women that have a high genetic risk of the disease, according to a study published online by The Lancet.

16 May 2005

New gene linked to familial cancer

Scientists have identified a new gene that appears to be linked to a small but significant percentage of familial cancer cases – as well as seemingly randomly occurring malignancies.

20 Apr 2005

Reducing expression of a gene called BRCC36 makes breast cancer cells more responsive to ionizing radiation

The research was presented today at the 96th Annual Meeting of the American Association for Cancer Research (AACR) in Anaheim, Calif. BRCC36 directly interacts with the BRCA1 protein. Almost all invasive breast cancer cells have elevated BRCC36 levels compared to normal breast milk-duct cells.

20 Apr 2005

Dramatic difference between breast cancers in US and Africa

A study comparing, for the first time, breast cancers from Nigeria, Senegal and North America has found that women of African ancestry are more likely to be diagnosed with a more virulent form of the disease than women of European ancestry.

19 Apr 2005

Black women in the US less likely to access preventative cancer treatments

A report from the University of Pennsylvania School of Medicine in Philadelphia says that black women in the US with a family history of breast or ovarian cancer, are far less likely to seek genetic counselling and possible testing than their white counterparts, and although the reasons for the disparity are not clear, it is suspected that mistrust of both the medical system and advice from primary physicians may be factors.

12 Apr 2005

Mutated BRCA1 genes cause ovarian cancer indirectly

Mutated BRCA1 genes cause ovarian cancer indirectly, by interfering with the biochemical signals one ovarian cell sends to another, according to a team of researchers led by scientists at the USC/Norris Comprehensive Cancer Center and the Keck School of Medicine of the University of Southern California.

28 Mar 2005

Oral contraceptives may protect against breast cancer

Women at high genetic risk of breast cancer could reduce their risk of developing the disease at an early age by taking oral contraceptives, a new study has found. The findings contradict previous studies, which suggested oral contraceptive use would increase the risk of developing breast cancer.

22 Mar 2005

Women with non–invasive breast cancer carry the same mutations in two inherited breast/ovarian cancer genes as women diagnosed with invasive breast cancer

The inherited breast/ovarian cancer genes are BRCA1 and BRCA2, which are associated with an increased risk of breast and/or ovarian cancer. The results are part of a five–year study of a common form of early stage breast cancer called ductal carcinoma in situ (DCIS).

7 Mar 2005

Non-invasive and invasive breast cancers share the same genetic mutations

Women diagnosed with early stage, non–invasive breast cancer who carry the same mutations in two inherited breast/ovarian cancer genes as women diagnosed with invasive breast cancer, may benefit from high risk treatment, Yale researchers report in the February 23 issue of Journal of the American Medical Association.

23 Feb 2005

Breast conserving therapy safe for hereditary breast cancer

Women with hereditary breast cancer treated with breast conserving therapy appear to have no increased risk for recurrence in the treated breast, according to results from a prospective study published in the January 1, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society.

23 Nov 2004

Study clarifies BRCA1 and BRCA2 links with other cancers

The largest population study ever done into the risk of cancer in families that fulfil the criteria for BRCA1 and BRCA2 mutation testing has confirmed that breast and ovarian cancers are the major concerns for geneticists and doctors counselling families.

14 Nov 2004

New insight into the role of the breast cancer gene known as BRCA2

Researchers at the Medical Research Council (MRC) Cancer Cell Unit, Cambridge have gained an important new insight into the role of the breast cancer gene known as BRCA2.

29 Oct 2004

Sister study that examines causes of breast cancer opens

A new study that will look at 50,000 sisters of women diagnosed with breast cancer opened today for enrollment across the United States. The Sister Study, conducted by the National Institute of Environmental Health Sciences (NIEHS), will investigate environmental and genetic causes of breast cancer.

18 Oct 2004

Support groups help women with breast cancer gene mutations

A new study finds support groups can relieve the anxiety and depression associated with carrying BRCA1 or 2 gene mutations, the so-called "cancer genes."

11 Oct 2004

50,000 women whose sisters had breast cancer needed for nationwide study

Women who know the angry, helpless feeling of watching a sister face breast cancer have gained a new, active, and personal way to fight the disease with the nationwide launch of The Sister Study.

26 Sep 2004