Please join UK’s College of Arts & Sciences faculty authors for readings and inspirations featuring their newest book releases

Reception to follow in the Alumni Gallery

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Abstract: The human cytochrome P450 1B1 (CYP1B1) is an emerging target for small- molecule therapeutics. Several solid tumors overexpress CYP1B1 to the degree that it has been referred to as a universal tumor antigen. Conversely, its expression is low in healthy tissues. CYP1B1 may drive tumorigenesis through promoting the formation of reactive toxins from environmental pollutants or from endogenous hormone substrates. Additionally, the expression of CYP1B1 in tumors is associated with resistance to several common chemotherapies and with poor prognoses in cancer patients. However, inhibiting CYP1B1 with small molecules has been demonstrated in cellular and murine model systems to reverse this resistance phenotype. Thus, an approved CYP1B1 inhibitor may be of immense benefit to cancer patients struggling against chemotherapy-resistant disease.

However, developing selective inhibitors of CYP1B1 is challenging due to the existence of approximately fifty related cytochromes P450 found in humans which share similar structural features. Confounding this fact, CYP1B1 preferentially binds substrates of low three-dimensional complexity and with high lipophilicity, which from a synthetic viewpoint are relatively nondescript, making rational inhibitor design difficult.

This work offers new synthetic approaches toward the solution to the challenge of developing selective CYP1B1 inhibitors. The first part of the work describes the discovery and mode of action of a previously unknown inhibitor of CYP1B1 active at sub-nanomolar concentrations, and with unprecedented selectivity compared to existing inhibitors. Next, the pharmacokinetic optimization of this lead compound was undertaken resulting in an improved lead with excellent metabolic stability for future applications in disease models, and with the long-term goal of translation into the clinic for use in human patients. Together, the development of a series of new molecular entities is described which enable the exquisite control of the activity of this medically relevant enzyme and is an important step toward the development of drug candidates.

UK Department of Chemistry Regional Undergraduate Poster Competition

Jacobs Science Building - Second and Third floors (check-in located in JSB 261M)

The Department of Chemistry at the University of Kentucky will hold its annual Regional Poster Session for Undergraduates on Friday, March 31, 2023. Come participate in this opportunity to share your research and network with other undergraduate researchers in the region. There is no registration fee!

Abstracts are due by Friday, March 17, 2023. To submit an abstract and register, click here.

To view a copy of this year's abstract booklet, click here.

Note to UK students: Students in CHE 395 planning to graduate or otherwise conclude their research are required to participate in the Poster Competition if they have not done so in the past.

Please contact the department if you have questions.

Awards

Past winners include students from:

We thank the Lexington Section of the American Chemical Society for graciously funding the awards for this poster competition.

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