Discovery of Gut-Restricted PRMT5 Inhibitors to Intercept Colorectal Cancer in Patients with Genetic Loss of Tumor Suppressor Adenomatous Polyposis Coli

Loss of the functional Adenomatous Polyposis Coli (<i>APC</i>-LOF) tumor suppressor gene represents the disease-initiating event in most colorectal cancer (CRC) cases. A newly identified dependency between PRMT5 and <i>APC</i>-LOF suggests that inhibiting PRMT5 may help intercept CRC. To circumvent hematological toxicities associated with orally bioavailable first-generation PRMT5 inhibitors, we aimed to limit systemic exposure after oral administration. We describe our efforts, challenges, and compound evaluation workflow resulting in gut-restricted PRMT5 inhibitors. A two-pronged approach was envisioned, consisting of (1) minimizing passive absorption, and (2) maximizing systemic clearance by incorporation of a metabolic "soft spot". This resulted in <b>9</b> and <b>18</b>, displaying low absorption in preclinical species and high first-pass extraction mediated by aldehyde oxidase. <b>9</b> and <b>18</b> demonstrated in vivo colon pharmacodynamics without signs of systemic on-target toxicity, confirming gut-restriction. Administering <b>9</b> to dextran sodium sulfate (DSS)-treated polyp-bearing <i>Apc</i><sup>Min/+</sup> mice significantly reduced polyp number, indicating local treatment efficacy.

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Publication Details

Journal
Journal of Medicinal Chemistry
Published
2025-08-26
DOI
https://doi.org/10.1021/acs.jmedchem.5c00830
Citations
1
Primary Topic
Cancer-related gene regulation
Type
article
Field-Weighted Citation Impact
0.81
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article

Discovery of Gut-Restricted PRMT5 Inhibitors to Intercept Colorectal Cancer in Patients with Genetic Loss of Tumor Suppressor Adenomatous Polyposis Coli

Jan Willem Thuring, Fabian Hulpia, Petra Vinken, Wim Schepens et al.
1 citations
Journal of Medicinal Chemistry
Cancer-related gene regulation
0.81
article

Discovery of Gut-Restricted PRMT5 Inhibitors to Intercept Colorectal Cancer in Patients with Genetic Loss of Tumor Suppressor Adenomatous Polyposis Coli

Jan Willem Thuring, Fabian Hulpia, Petra Vinken, Wim Schepens, Tammy L. Bush, Cynthia Milligan, Zhengyu Jiang, Zienab Etwebi, Stefaan Last, Aaron Patrick, Susan Lepri, Sven Van Brandt, Carla S. Veríssimo, Ferran Jardí, Juan‐Miguel Jimenez, Eileen D. Vesely, Mariana Teixeira da Silva, Serge Pieters, Albi Francis, Guido Verniest, Egor M. Larin, Joseph E. Leenaerts, Yi Fan, Jie Yang, Kurtis E. Bachman, Ferdinand H. Lutter, Johan Nicolaï, Laura Pérez‐Benito, Mark S. Hixon, Bethany K. Mattson, Gauri A. Patwardhan, Xuemei Yao, Dana S. Gaffney, Alexandra G. Liddane, Sylvia F. Boj, David J. Pocalyko, Victoria D. Wong, Gerben ten Hag, Kathleen W. Clancy, Evelien Renders, Yufei Wang, Fei Chen, José Périto Leite Rodrigues da Silva, Siyu Li, Melissa Everaerts, Shuai Jin, M. da G. da C. Carvalho, Gerald Chu, Claudia Thäte, Dan Lv, Irene Vetrano, Constance Smith-Monroy, Froylan Omar Fernandez Candelaria, Ed Retzbach, Hans Sterckx, Remco Zijlmans
article en
1 citations

Abstract

Loss of the functional Adenomatous Polyposis Coli (<i>APC</i>-LOF) tumor suppressor gene represents the disease-initiating event in most colorectal cancer (CRC) cases. A newly identified dependency between PRMT5 and <i>APC</i>-LOF suggests that inhibiting PRMT5 may help intercept CRC. To circumvent hematological toxicities associated with orally bioavailable first-generation PRMT5 inhibitors, we aimed to limit systemic exposure after oral administration. We describe our efforts, challenges, and compound evaluation workflow resulting in gut-restricted PRMT5 inhibitors. A two-pronged approach was envisioned, consisting of (1) minimizing passive absorption, and (2) maximizing systemic clearance by incorporation of a metabolic "soft spot". This resulted in <b>9</b> and <b>18</b>, displaying low absorption in preclinical species and high first-pass extraction mediated by aldehyde oxidase. <b>9</b> and <b>18</b> demonstrated in vivo colon pharmacodynamics without signs of systemic on-target toxicity, confirming gut-restriction. Administering <b>9</b> to dextran sodium sulfate (DSS)-treated polyp-bearing <i>Apc</i><sup>Min/+</sup> mice significantly reduced polyp number, indicating local treatment efficacy.

Journal of Medicinal ChemistryVol. 68(22)
Johnson & Johnson (United States) (US), Jilin Province Tumor Hospital (CN), Pharmaron (United Kingdom) (GB), Translational Research in Oncology (FR), Johnson & Johnson (Israel) (IL), Drug Discovery Laboratory (Norway) (NO), Association of Organ Procurement Organizations (US), AstraZeneca (Germany) (DE), Intercept Pharmaceuticals (United States) (US)
Good health and well-being
Openalex Percentile: Top 24%
Cancer-related gene regulation
0.81
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