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  2. Guidelines say more women may need breast cancer gene test - AOL

    www.aol.com/news/2019-08-26-guidelines-say-more...

    Most cancer isn't caused by BRCA mutations — they account for 5 percent to 10 percent of breast cancers and 15 percent of ovarian cancers — so the gene tests aren't for everyone. But mutations ...

  3. BRCA1 - Wikipedia

    en.wikipedia.org/wiki/BRCA1

    [13] [11] BRCA1 and BRCA2 have been described as "breast cancer susceptibility genes" and "breast cancer susceptibility proteins". The predominant allele has a normal, tumor-suppressive function whereas high penetrance mutations in these genes cause a loss of tumor-suppressive function which correlates with an increased risk of breast cancer. [14]

  4. Mouse models of breast cancer metastasis - Wikipedia

    en.wikipedia.org/wiki/Mouse_models_of_breast...

    [3] [4] [5] Breast cancer is consensually considered genetically and clinically as a heterogeneous disease, in that it reflects the heterogeneity of the normal breast tissue at its origin17873350. [6] A number of discrete genetic events have to occur in order to enable individual tumor cells that have the capacity to grow at an ectopic site.

  5. Loss of heterozygosity - Wikipedia

    en.wikipedia.org/wiki/Loss_of_heterozygosity

    The exact targets for LOH are not characterised for all chromosomal losses in cancer, but certain are very well mapped. Some examples are 17p13 loss in multiple cancer types where a copy of TP53 gene gets inactivated, 13q14 loss in retinoblastoma with RB1 gene deletion or 11p13 in Wilms' tumor where WT1 gene is lost. [2]

  6. BRCA mutation - Wikipedia

    en.wikipedia.org/wiki/BRCA_mutation

    Compared to that, a woman with a high-risk BRCA1 mutation, if she had breast cancer screening but no prophylactic medical or surgical intervention, would have only 59% chance to reach age 70, twenty-five percentage points lower than normal. Of those women not surviving, 26% would die of breast cancer, 46% ovarian cancer, and 28% other causes. [15]

  7. BRCA2 - Wikipedia

    en.wikipedia.org/wiki/BRCA2

    A patent application for the isolated BRCA1 gene and cancer-cancer promoting mutations, as well as methods to diagnose the likelihood of getting breast cancer, was filed by the University of Utah, National Institute of Environmental Health Sciences (NIEHS) and Myriad Genetics in 1994; [42] over the next year, Myriad, in collaboration with other ...

  8. Cancer biomarker - Wikipedia

    en.wikipedia.org/wiki/Cancer_biomarker

    This test is intended for women with early-stage (Stage I or II), node-negative, estrogen receptor-positive (ER+) invasive breast cancer who will be treated with hormone therapy. Oncotype DX looks at a panel of 21 genes in cells taken during tumor biopsy .

  9. MammaPrint - Wikipedia

    en.wikipedia.org/wiki/MammaPrint

    MammaPrint is based on the Amsterdam 70-gene breast cancer gene signature and uses formalin-fixed-paraffin-embedded (FFPE) or fresh tissue for microarray analysis. [3] It is a laboratory developed test (LDT) which falls into the class of In Vitro Diagnostic Multivariate Index Assays (IVDMIA).

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