AHWWebImage_ParentPage_WhatWeDo.jpg

Solving Protein Structures to Uncover Molecular Mechanisms of Cancer

Equipping and staffing a state-of-the-art facility to solve the atomic-level structure of cancer-relevant proteins

Full Project Name:Solving Protein Structures to Uncover Molecular Mechanisms of CancerPrincipal Investigator:Gustavo Leone, PhD, BiochemistryCo-Investigator(s):Wei Lui, PhD, Pharmacology and ToxicologyAward Amount:$5,500,000
Award Date
July2022
Project Duration:96 months

Project Summary:


In 2022, over 36,000 Wisconsinites will be newly diagnosed with cancer, and 11,700 will die from it. The Medical College of Wisconsin Cancer Center is dedicated to developing, translating, and offering novel therapies to improve cancer survivorship and decrease cancer outcomes disparities throughout the state. Knowing a protein's 3D structure is a critical asset necessary to understand mechanisms underlying protein function because proteins' interactions with other proteins or with drugs are mediated by their shape along with electrical and chemical properties. Such mechanistic understanding can be applied to develop effective cancer therapeutics by designing drugs that bind proteins involved in cancer in a highly specific manner to inhibit or activate them.

Since 2010, cryo-electron microscopy (cryo-EM) has emerged as a powerful new means to map proteins' shapes. By establishing a cryo-EM capability and expanding collaborations with multidisciplinary teams of scientists, the researchers propose to unravel the underlying mechanisms driving cancer initiation, progression, and metastasis, paving the way for future studies to evaluate and optimize drugs that target these mechanisms and providing significant benefits to cancer patients in Wisconsin.

Through this partnership with AHW, the researchers will establish a pipeline using cryo-EM to solve the structures of important membrane-bound proteins, such as G protein-coupled receptors (GPCRs) and other cancer-relevant protein targets. By doing so, they will provide the data required for structure-based drug design, paving the way for novel therapeutics that will have superior efficacy and fewer negative side effects than currently available cancer drugs. These more effective drugs will be better tolerated by patients, markedly reduce or eliminate their tumors, increase their disease-free and overall survival, and improve the quality of life after cancer.

Project Updates:


  • Established the Structural Biology Shared Resources, including the protein production facility, which feeds into the CryoEM pipeline and provides services for cloning and cell line generation, and the cryoEM facility, which focuses on structure determination, determination of ligand binding sites, and optimization of ligand design
  • Continued to grow the user base for both facilities, with six active projects for the protein production facility and eight currently active projects for the cryo-EM facility focused on determination of channel structures, receptor structures, and pathogenetic factors implicated in communicable diseases and cardiovascular disease
  • Recruited additional research technologists and scientists to improve service timelines and meet increasing demand for protein production and structural biology services
  • Hosted a symposium to highlight the critical role of cryo-EM in accelerating drug discovery with nearly 100 attendees and a week-long training course on CryoEM and data analysis
  • Disseminated project efforts and findings through five publications


AHW Logo

8701 W Watertown Plank Road,
Milwaukee, WI 53226-0509
(414) 955-4350

©2021 MEDICAL COLLEGE OF WISCONSIN. ALL RIGHTS RESERVED | MCW.EDU | TERMS & PRIVACY | NON-DISCRIMINATION NOTICE

top