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ABCG2 is a translocation protein used to actively pump drugs and other compounds against their concentration gradient using the bonding and hydrolysis of ATP as the energy source. [1] ABCG2 forms into a homodimer to assume its active transport conformation. The dimer weighs approximately 144 kDa. The expression of this transport protein is ...
In medical genetics, compound heterozygosity is the condition of having two or more heterogeneous recessive alleles at a particular locus that can cause genetic disease in a heterozygous state; that is, an organism is a compound heterozygote when it has two recessive alleles for the same gene, but with those two alleles being different from each other (for example, both alleles might be ...
If the breast cancer does not overexpress HER2, trastuzumab will have no beneficial effect (and may cause harm). Doctors use laboratory tests to discover whether HER2 is overexpressed. In the routine clinical laboratory , the most commonly employed methods for this are immunohistochemistry (IHC) and either silver, chromogenic or fluorescent in ...
MCF-7 is a breast cancer cell line isolated in 1970 from a 69-year-old White woman. [1] MCF-7 is the acronym of Michigan Cancer Foundation-7, referring to the institute in Detroit where the cell line was established in 1973 by Herbert Soule and co-workers. [2] The Michigan Cancer Foundation is now known as the Barbara Ann Karmanos Cancer ...
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 ...
Experiments using cell culture are used for developing new diagnostic tests and new treatments for diseases. This is a list of major breast cancer cell lines that are primarily used in breast cancer research .
The commercial test is marketed for use in breast cancer irrespective of estrogen receptor (ER) status. [72] The test is run on formalin fixed, paraffin-embedded tissue. MammaPrint traditionally used rapidly frozen tissue [39] but a room temperature, molecular fixative is available for use within 60 minutes of obtaining fresh tissue samples. [75]
The estimated fraction of breast cancer attributed to this variant is reported to be around 1.2% in the US. [ 8 ] Two more CHEK2 gene mutations, CHEK2*S428F, an amino-acid substitution to the kinase domain in exon 11 and CHEK2*P85L, an amino-acid substitution in the N-terminal region (exon 1) have been found in the Ashkenazi Jewish population ...