Study: Existing drug may treat triple-negative breast cancer

The new research has revealed that an existing drug could be repurposed to treat some of the people with this form of breast cancer.

By: Editorial Team | | Published: October 9, 2018 5:48 pm

Aim to create awareness regarding breast cancer. © Shutterstock

A new study found that estradiol, the existing drug estradiol can obstruct tumour growth in a subtype of triple-negative breast cancer. According to the Medical News Today report, in the phase II clinical trial, the researchers may soon test the repurposed drug. Triple-negative breast cancer is an aggressive form of breast cancer wherein tumours lack expression of three proteins. This condition is able to grow and spread more quickly than other forms of breast cancer. The three are progesterone receptor, human epidermal growth factor receptor 2 (HER2) and estrogen receptor. Also, specialists cannot treat them with hormone therapy because its cancer cells lack hormone receptors. The only treatment for these types of cancer is chemotherapy.

However, previous research by Hawse and team found that estrogen beta, another form of estrogen receptor is present in over 30 per cent of estrogen receptor-positive breast cancer tumours and in 25 per cent of triple-negative tumours. That research also showed that the estrogen receptor beta is a tumour suppressor, which correlates with better patient outcomes.

According to the new study, Hawse and his colleagues studied the effect of estradiol on the growth of triple-negative tumours that express estrogen receptor beta. Both in vitro and in vivo experiments was included in the study.

Published : October 9, 2018 5:48 pm

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