ERX-11: Difference between revisions

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'''ERX-11''' is a [[BRCA1]] inhibitor that is currently under investigation for its potential use in the treatment of [[cancer]]. It was developed by Elixirgen Therapeutics, a biopharmaceutical company based in Baltimore, Maryland, USA.
== ERX-11 ==
 
[[File:ERX-11.svg|thumb|right|Diagram of ERX-11 molecule]]
 
'''ERX-11''' is a novel small molecule that has been studied for its potential therapeutic effects in the treatment of [[breast cancer]]. It is classified as an [[estrogen receptor]] (ER) modulator, specifically targeting the [[estrogen receptor alpha]] (ER_) subtype. ERX-11 is designed to disrupt the interaction between ER_ and its coactivators, thereby inhibiting the transcriptional activity of ER_ and reducing the proliferation of ER-positive breast cancer cells.


== Mechanism of Action ==
== Mechanism of Action ==
ERX-11 works by inhibiting the function of the BRCA1 protein. [[BRCA1]] is a tumor suppressor protein that plays a key role in repairing damaged DNA. In normal cells, BRCA1 helps to repair DNA damage, which prevents the development of tumors. However, in some cancer cells, BRCA1 is overactive, which allows these cells to repair their DNA and continue to grow and divide. By inhibiting BRCA1, ERX-11 prevents cancer cells from repairing their DNA, which leads to cell death.


== Clinical Trials ==
ERX-11 functions by binding to a unique site on the [[estrogen receptor alpha]], distinct from the ligand-binding domain where traditional [[selective estrogen receptor modulators]] (SERMs) and [[aromatase inhibitors]] act. This binding interferes with the recruitment of coactivators necessary for the transcriptional activity of ER_, leading to a decrease in the expression of genes that promote cell growth and survival in ER-positive breast cancer.
ERX-11 is currently in the early stages of clinical development. Preclinical studies have shown that it is effective in killing cancer cells in the laboratory. Clinical trials are now underway to determine its safety and efficacy in humans.
 
== Clinical Significance ==
 
The development of ERX-11 is significant in the context of [[hormone receptor-positive breast cancer]], which constitutes a large proportion of breast cancer cases. Current therapies, such as [[tamoxifen]] and [[fulvestrant]], face challenges such as resistance and side effects. ERX-11 offers a potential alternative by targeting ER_ in a novel manner, which may overcome some of the limitations of existing therapies.
 
== Research and Development ==


== Potential Applications ==
Research on ERX-11 is ongoing, with preclinical studies demonstrating its efficacy in reducing tumor growth in [[xenograft]] models of ER-positive breast cancer. These studies suggest that ERX-11 may be effective in cases where tumors have developed resistance to other forms of endocrine therapy.
If successful in clinical trials, ERX-11 could be used to treat a variety of cancers, including [[breast cancer]], [[ovarian cancer]], and [[prostate cancer]]. It could be particularly useful in treating cancers that are resistant to other forms of treatment.


== See Also ==
== Potential Side Effects ==
* [[BRCA1]]
* [[Cancer]]
* [[Breast cancer]]
* [[Ovarian cancer]]
* [[Prostate cancer]]


[[Category:Experimental cancer drugs]]
As with any new therapeutic agent, the safety profile of ERX-11 is under investigation. Potential side effects are being evaluated in preclinical and early clinical trials, with a focus on ensuring that the disruption of ER_ activity does not adversely affect normal physiological processes regulated by estrogen.
[[Category:BRCA1]]


{{stub}}
== Future Directions ==


== References ==
The future of ERX-11 involves further clinical trials to establish its efficacy and safety in humans. Researchers are also exploring its potential use in combination with other therapies to enhance its anti-tumor effects and to prevent the development of resistance.
<references />


== External Links ==
== Related Pages ==
* [https://www.elixirgen.com/ Elixirgen Therapeutics]


== Further Reading ==
* [[Breast cancer]]
* [https://www.ncbi.nlm.nih.gov/pubmed/29774130 "ERX-11 is an orally bioavailable, specific inhibitor of the BRCA1 DNA repair complex"] (PubMed)
* [[Estrogen receptor]]
* [https://www.cancer.gov/publications/dictionaries/cancer-drug/def/erx-11 "ERX-11"] (National Cancer Institute Drug Dictionary)
* [[Selective estrogen receptor modulator]]
* [[Aromatase inhibitor]]
 
[[Category:Breast cancer treatment]]
[[Category:Experimental cancer drugs]]

Latest revision as of 03:30, 13 February 2025

ERX-11[edit]

Diagram of ERX-11 molecule

ERX-11 is a novel small molecule that has been studied for its potential therapeutic effects in the treatment of breast cancer. It is classified as an estrogen receptor (ER) modulator, specifically targeting the estrogen receptor alpha (ER_) subtype. ERX-11 is designed to disrupt the interaction between ER_ and its coactivators, thereby inhibiting the transcriptional activity of ER_ and reducing the proliferation of ER-positive breast cancer cells.

Mechanism of Action[edit]

ERX-11 functions by binding to a unique site on the estrogen receptor alpha, distinct from the ligand-binding domain where traditional selective estrogen receptor modulators (SERMs) and aromatase inhibitors act. This binding interferes with the recruitment of coactivators necessary for the transcriptional activity of ER_, leading to a decrease in the expression of genes that promote cell growth and survival in ER-positive breast cancer.

Clinical Significance[edit]

The development of ERX-11 is significant in the context of hormone receptor-positive breast cancer, which constitutes a large proportion of breast cancer cases. Current therapies, such as tamoxifen and fulvestrant, face challenges such as resistance and side effects. ERX-11 offers a potential alternative by targeting ER_ in a novel manner, which may overcome some of the limitations of existing therapies.

Research and Development[edit]

Research on ERX-11 is ongoing, with preclinical studies demonstrating its efficacy in reducing tumor growth in xenograft models of ER-positive breast cancer. These studies suggest that ERX-11 may be effective in cases where tumors have developed resistance to other forms of endocrine therapy.

Potential Side Effects[edit]

As with any new therapeutic agent, the safety profile of ERX-11 is under investigation. Potential side effects are being evaluated in preclinical and early clinical trials, with a focus on ensuring that the disruption of ER_ activity does not adversely affect normal physiological processes regulated by estrogen.

Future Directions[edit]

The future of ERX-11 involves further clinical trials to establish its efficacy and safety in humans. Researchers are also exploring its potential use in combination with other therapies to enhance its anti-tumor effects and to prevent the development of resistance.

Related Pages[edit]