Proteomics-based Research Initiative for Non-Cytochrome P450 Enzymes (PRINCE)
The Proteomics-based Research Initiative for Non-Cytochrome P450 Enzymes (PRINCE) is a research collaboration between Washington State University and multiple pharmaceutical companies. The overarching objective of PRINCE is to enable prediction of drug metabolism mediated by non-cytochrome P450 (non-CYP) enzymes. The research utilizes quantitative mass spectrometry proteomics for:
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The characterization of differential tissue expression, interindividual variability, and inter-species differences in non-CYP enzymes
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In vitro to in vivo extrapolation (IVIVE) of non-CYP metabolism for predicting drug clearance and fractional contribution of individual enzymes
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Physiologically-based pharmacokinetic (PBPK) modeling of drugs metabolized by non-CYP enzymes
Specific aims and publications from PRINCE work:
PRINCE 1.0 (2018-19)
- Characterization of differential tissue abundance of UDP glucuronosyltransferases (UGTs), aldehyde oxidase (AOX), and carboxylesterases (CESs) in human liver, intestine, kidney, heart, and lung (PMID: 32955894).
- Regional proteomic quantification of clinically relevant non-cytochrome P450 enzymes along the human small intestine (PMID: 32350063).
PRINCE 2.0 (2019-21)
- Protein abundance of non-cytochrome P450 drug-metabolizing enzymes across tissues in laboratory animal species (rat, mouse, dog, and monkey) versus humans (PMID: 34969659).
PRINCE 3.0 (2021-23)
- Compare relative expression and relative activity factors (REF versus RAF) of human aldehyde oxidase (AO) and carboxylesterase (CES) in commercially available recombinant models and pooled tissue fractions (PMID: 37429730).
- Ontogeny of AO in human liver cytosol and human hepatocytes
- Develop PBPK models for predicting pharmacokinetics of AO and CES substates
PRINCE 4.0 (2023-25)
- Validate global proteomics-based Total Protein Approach (TPA) for quantification of selected hydrolytic drug metabolizing enzymes (H-DMEs): Comparison of targeted versus TPA methods
- Characterize ontogeny of H-DMEs in human hepatocytes
- Quantify differential tissue abundance of H-DMEs in human
- Quantify inter-species differences in H-DMEs (species: mouse, rat, dog, monkey, and human)
Consortium members:
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CORE members: The core members contribute in designing PRINCE research direction, continuous intellectual input in research, and manuscript writing.
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SUPPORTING member: The supporting members support PRINCE research by providing critical reagents or separate research funding on specific non-CYP research
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ADVISORY Members: Individuals from industry or academia with interest to intellectually contributing to the non-CYP research conducted by PRINCE consortium
Membership benefits:
Benefits to CORE members:
- Vote for future directions of PRINCE research
- Access to pre-publication data from the PRINCE research
- Submission of up to 10 samples/per funding cycle for proteomics analysis of selected DMEs and transporter proteins
- Participation in regular PRINCE teleconferences and face-to-face meetings
- Opportunity to contribute as coauthors in manuscripts from PRINCE research
Benefits to SUPPORTING members:
- Opportunity to contribute as coauthors in manuscripts from PRINCE research
Benefits to ADVISORY members:
- Opportunity to participate in PRINCE research (co-authorship to be decided on case-by-case basis)
People:
Program Director:
Research Team:
- Sandhya Subash, Ph.D.
- Dilip Singh, Ph.D.
- Guihua (Eileen) Yue, Ph.D.
- Namrata Bachhav
- Siavosh Naji-Talakar
Contact:
Please contact Bhagwat Prasad if you are interested in becoming a PRINCE member or have any questions regarding this program.