FORCE's eXamining the Relevance of Articles for You (XRAY) program looks behind the headlines of cancer news to help you understand what the research means for you.
XRAY is a reliable source of hereditary cancer research-related news and information.
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Keyword: PALB2
Relevance: Medium-High
Strength of Science: Medium-High
Study : Breast cancer risk increases modestly after childbirth
Most relevant for: Women in their childbearing years
Does having children alter the risk of breast cancer? Women who give birth have a lower lifetime risk of breast cancer. However, newer data suggests that breast cancer risk increases immediately after childbirth. A study published in December 2018 examines data from the Premenopausal Breast Cancer Collective Group seeking to clarify this issue. (12/28/18)
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Relevance: Medium-High
Strength of Science: High
Research Timeline: Post Approval
Study : Inherited breast cancer in Nigerian women
Most relevant for: Nigerian women or women of Nigerian descent who have breast cancer
A new study shows that among Nigerian women, one in eight cases of breast cancer is due to an inherited mutation in BRCA1, BRCA2, PALB2 or TP53. (12/5/18)
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Relevance: Medium-High
Strength of Science: Medium-High
Research Timeline: Post Approval
Study : Study identifies genes associated with risk of triple-negative breast cancer
Most relevant for: People diagnosed with triple-negative breast cancer
Panel testing can identify women who are at increased risk for breast cancer. However, those at risk for triple-negative breast cancer cannot easily be identified because other than BRCA1, genes that increase the risk for triple-negative breast cancer are unknown. A new study uses panel testing to identify which genes increase the risk for triple-negative breast cancer. (8/23/18)
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Relevance: Medium-Low
Strength of Science: Medium-Low
Research Timeline: Human Research
Study : No new high-risk breast cancer genes here
Most relevant for: People with a family history of breast cancer but no known inherited mutation
While some of the genes that cause hereditary breast cancer are known (for example, inherited mutations in genes like BRCA, ATM and PALB2), others remain unidentified. Two studies found 72 DNA changes (also known as “variants” or “SNPs”) that affect breast cancer risk. These variants are different from mutations in genes that dramatically increase cancer risk. Most of these new variants are located outside of the portion of DNA that is used to make proteins. Further research is needed on these new variants before they can be used by doctors to help people understand and manage their risk for cancer. (1/12/18)
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Study : Angelina Jolie spoke out on BRCA testing: Did genetic testing increase?
Most relevant for: People interested in genetic testing for an inherited mutation
Angelina Jolie published an editorial in the New York Times in 2013 about her choice to have a double mastectomy after finding out she was positive for a BRCA1 mutation. Researchers from a recent study claim that her celebrity endorsement of BRCA testing may have missed its target audience (previvors), due to the increase in BRCA testing following publication of the editorial but a decrease in the number of mastectomies performed. However, the study failed to take into account that many women without breast cancer do not pursue mastectomy in the months following genetic testing. (1/4/17)
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Relevance: Medium-High
Strength of Science: Medium
Research Timeline: Post Approval
Study : Rare mutations in PALB2, CHEK2, and ATM: how much do they increase cancer risk?
Most relevant for: People who tested positive for one of the rare variants in CHEK2, ATM or PALB2 that are covered in this study
As multi-gene panel tests become more common, people are discovering they have mutations in genes that are not understood as well as BRCA. This can make it difficult to give patients accurate assessments of their cancer risk. For example, mutations in PALB2, CHEK2, and ATM are rare, but some specific changes in these genes are even less common. The goal of this international collaboration was to better understand the cancer risks of some very rare PALB2, CHEK2, and ATM mutations. The findings are relevant only to the specific mutations covered in this paper and do not apply to all people with mutations in PALB2, CHEK2, or ATM. (9/27/16)
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Relevance: Medium
Strength of Science: Medium-High
Research Timeline: Post Approval
Study : What are the genetics underlying 12 different cancer types?
Most relevant for: People diagnosed with cancer
As gene sequencing has become more affordable, researchers and health care providers are now looking for mutations in many genes beyond BRCA1, BRCA2 and others that are associated with known hereditary cancer syndromes. By sequencing thousands of genes rather than just one or two, researchers can better understand which inherited mutations affect cancer risk. In this study, researchers sequenced thousands of genes in patients with one of 12 cancers, including breast, and catalogued which gene mutations are most commonly found in each cancer. (03/01/16)
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Relevance: Medium
Strength of Science: Medium
Research Timeline: Human Research
Study : Potential genetic basis for breast cancer survivors who develop therapy-related leukemia
Most relevant for: Breast cancer patients who have an inherited mutation and breast cancer patients who developed leukemia after treatment for breast cancer.
The population of breast cancer survivors in the United States is increasing. One rare but dangerous long-term effect of breast cancer treatment is an increased risk of leukemia, a type of bone marrow cancer. A recent study uncovered a potential genetic basis for this condition. (01/26/2015)
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Relevance: Medium
Strength of Science: Medium-High
Research Timeline: Human Research
Study : How many children with cancer have mutations in genes that increase cancer risk?
Most relevant for: Survivors of childhood cancer and people with a family history of relatives diagnosed with childhood cancers
Many genes are associated with increased cancer risk in adults, but it is unclear how common these mutations are in children with cancer. This study found that about 9% of children with cancer carry mutations in a gene that is known to increase cancer risk. Over half of the mutations were in the TP53 gene, which is associated with increased cancer risk at a young age and increased risk of breast cancer in adults. (12/15/2015)
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