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Updated: Mar 30, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
The use of porcupine inhibitors to target Wnt-driven cancers
1Experimental Therapeutics Centre, 31 Biopolis Way, #03-01 Nanos, Singapore 138669, Singapore.
Abstract:
Over the past decade, academic groups and pharmaceutical companies have uncovered several components and targets for intervention in the Wnt pathway. One approach is to block Wnt signalling through the use of orally bioavailable small molecules that prevent Wnt ligand secretion. In recent years, the membrane bound O-acyl transferase (MBOAT) porcupine (PORCN) has emerged as a molecular target of interest in the search for clinical options to treat Wnt-driven cancers. This review shall provide an overview of the reported small molecule inhibitors for PORCN and discuss the progress made in identifying human disease models that are responsive to PORCN inhibitors.
Insights
Researchers are exploring small molecule inhibitors targeting porcupine (PORCN) to block Wnt signaling. This approach aims to treat Wnt-driven cancers by preventing Wnt ligand secretion.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- The Wnt pathway is crucial in cellular processes and implicated in various cancers.
- Intervention strategies are being developed to modulate Wnt signaling.
- Porcupine (PORCN), a membrane-bound O-acyl transferase, is a key regulator of Wnt ligand secretion.
Purpose of the Study:
- To review small molecule inhibitors targeting PORCN.
- To discuss the therapeutic potential of PORCN inhibitors in Wnt-driven cancers.
- To explore human disease models responsive to PORCN inhibition.
Main Methods:
- Literature review of published research on PORCN inhibitors.
- Analysis of drug discovery efforts targeting PORCN.
- Examination of preclinical and clinical data for PORCN inhibitor efficacy.
Main Results:
- Several small molecule inhibitors targeting PORCN have been identified.
- These inhibitors demonstrate potential in blocking Wnt ligand secretion.
- Progress has been made in identifying cancer models sensitive to PORCN inhibition.
Conclusions:
- PORCN inhibitors represent a promising therapeutic strategy for Wnt-driven cancers.
- Further research is needed to optimize these inhibitors and validate their clinical utility.
- PORCN inhibition holds potential for treating various malignancies.
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