Navigation Links
Breast cancer etiology may vary by subtype
Date:5/21/2009

Women's reproductive and lifestyle characteristics can be linked to different invasive breast cancer subtypes. Data on 2544 breast cancer cases, presented in the open access journal Breast Cancer Research, suggests that traditional risk factors for development of the condition are associated with different kinds of tumor.

Marilyn Kwan from Kaiser Permanente Division of Research, California, led a team of researchers who used data from the LACE (Life After Cancer Epidemiology) and Pathways studies to investigate the characteristics of women with different breast cancer subtypes: luminal A, luminal B, triple negative and Her2-overexpressing. She said, "These varying associations by subtype lend further support to the growing evidence base that breast cancer is a heterogeneous disease defined by estrogen receptor, progesterone receptor, and Her2 expression with distinct etiologic pathways and prognoses".

The researchers found that patients with luminal B tumors were generally younger at diagnosis than those with luminal A and were less likely to consume alcohol, use HRT or use oral contraceptives. Compared to luminal A cases, triple negative cases tended to be African American, younger at diagnosis and overweight/obese if premenopausal. Her2-overexpressing cases were also more likely to be seen in younger patients than luminal A cases and were more likely to be Hispanic or Asian.

Kwan concludes, "Future research should focus on refinement of tumor subtypes in order to best elucidate how the risk factors may vary. Important modifiable factors that may be related to the development of specific tumor subtypes include obesity in the case of triple negative cancers and alcohol consumption for luminal B tumors".


'/>"/>

Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-787-741-1853
BioMed Central
Source:Eurekalert

Page: 1

Related medicine news :

1. Survival differences by race most apparent in advanced stages of breast cancer
2. MRI finds breast cancer before it becomes dangerous
3. Pathway links inflammation, angiogenesis and breast cancer
4. Drop in breast cancer incidence linked to hormone use, not mammograms
5. Breast cancer prevention practices vary across Canada
6. Eating junk food whilst pregnant and breastfeeding may lead to obese offspring
7. Acrylamide Wont Raise Breast Cancer Risk
8. New link between estrogen and breast cancer
9. Hypnosis Eases Pain of Breast Cancer Surgery
10. Discovery suggests location of genes for breast density, a strong risk factor for breast cancer
11. Longaberger Expands Horizon of Hope Campaign to Build Support for American Cancer Societys Breast Cancer Initiatives
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2017)... ... April 28, 2017 , ... ... the North East region. Côté has 20+ years of experience within the beauty ... Côté worked with an array of high-end cosmetic brands, retail brands and outlets ...
(Date:4/28/2017)... ... April 28, 2017 , ... Semrock’s highly popular SearchLight ... online modeling resource for fluorescence microscopists and optical system designers, enabling The Right ... years spanning the globe, SearchLight has become a tremendously popular tool for the ...
(Date:4/27/2017)... ... April 27, 2017 , ... ... deodorant. On the heels of Thinksport’s award-winning sunscreen they’ve used the same scientific ... actually works! , Countless deodorants flood the aisles that contain harmful chemicals that ...
(Date:4/27/2017)... ... April 27, 2017 , ... Offering the purest product ... oil many times purer and more potent than the market has seen before. Swissx ... Switzerland, as well as a patented chromatography process for extraction, to produce its CBD ...
(Date:4/26/2017)... ... April 26, 2017 , ... Journal of Oral Implantology ... have severe consequences to overall dental health, including complications with speech, eating, and overcompensation ... dental implants to replace lost teeth. As the number of tooth replacements increase, it ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... April 19, 2017 The Mobile X-Ray product segment ... healthy CAGR during the forecast period Mobile X-Ray ... global digital mobile X-Ray devices market, which is estimated to ... expanding at a CAGR of 7% over the forecast period. ... of more than US$ 100 Mn in 2017 over 2016. ...
(Date:4/19/2017)... , April 19, 2017 Global ... This report on the prostate cancer therapeutics market ... global market. Increasing prevalence of prostate cancer, launch ... in the development of new drugs & therapeutic ... cancer drug due to lesser side effects are ...
(Date:4/19/2017)... April 19, 2017  Sorrento Therapeutics, Inc. (NASDAQ: ... biopharmaceutical company developing new treatments for cancer and ... of its previously announced underwritten public offering of ... public offering price of $2.00 per share, before ... expenses payable by Sorrento.  The net proceeds to ...
Breaking Medicine Technology: