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SSHD molecules



The BRC1 gene plays an important role in the repair of many different types of DNA damage. Decreased BRCA1 activity is associated with increased susceptibility to development of cancers such as breast and ovary and others including fallopian tube, pancreatic and male breast cancer. Decreased BRCA1 expression is also associated with tumour progression. The SSHD-BRC1 molecule targets this gene to increase its efficiency.

What does the BRCA1 gene do?

The BRCA1 gene makes a protein that plays an important role in repairing damaged DNA. DNA is being damaged continuously in every single cell, therefore adequate function of BRCA1 is required to ensure effective repair of DNA.

The BRCA1 gene also belongs to a class of genes known as tumour suppressor genes. Like many other tumour suppressors, the protein produced from the BRCA1 gene helps prevent cells from growing and dividing too rapidly or in an uncontrolled way.

Breast cancer and other cancers may have a familial background. Such breast cancer cases often have a heritable form of BRCA1 that is low in activity. Non-familial or sporadic forms of breast and other cancers on the other hand, have been found to have reduced expression of the BRCA1 gene [1 & 2]. More importantly, scientists have shown that the degree of reduced gene expression of BRCA1 is associated with tumour progression and aggressiveness [2].

By helping repair DNA, BRCA1 plays a role in maintaining the stability of a cell's genetic information. Therefore, increasing BRCA1 expression will help to stabilise the structure of DNA as well as reduce the likelihood of development of many cancers and slow down their progression.


  1. Thompson et al., Decreased expression of BRCA1 accelerates growth and is often present during sporadic breast cancer progression. Nat Genet 1995, 9, 444.
  2. Zheng et al., Reduction of BRCA1 expression in sporadic ovarian cancer. Gynecol Oncol. 2000, 76, 294.

Want to know more?

For more information about this SSHD molecule, contact your healthcare practitioner or arrange an appointment using our clinic.

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