| Title |
|
A Mouse Model for the Rapid and Binomial Assessment of Putative WNT/β-Catenin Signalling Inhibitors. |
|
|
| Publication Date |
|
| Author(s) |
|
| Subject |
|
| Type of document |
|
| OrcId |
|
#PLACEHOLDER_PARENT_METADATA_VALUE# |
|
|
#PLACEHOLDER_PARENT_METADATA_VALUE# |
|
|
#PLACEHOLDER_PARENT_METADATA_VALUE# |
|
|
#PLACEHOLDER_PARENT_METADATA_VALUE# |
|
|
| DOI |
|
10.3390/biomedicines11102719 |
|
|
| Abstract |
|
Specific signalling thresholds of the WNT/β-catenin pathway affect embryogenesis and tissue homeostasis in the adult, with mutations in this pathway frequently occurring in cancer. Excessive WNT/β-catenin activity inhibits murine anterior development associated with embryonic lethality and accounts for the driver event in 80% of human colorectal cancers. Uncontrolled WNT/β-catenin signalling arises primarily from impairment mutation in the tumour suppressor gene APC that otherwise prevents prolonged stabilisation of β-catenin. Surprisingly, no inhibitor compounds for WNT/β-catenin signalling have reached clinical use in part owing to the lack of specific in vivo assays that discriminate between on-target activities and dose-limiting toxicities. Here, we present a simple in vivo assay with a binary outcome whereby the administration of candidate compounds to pregnant and phenotypically normal Apcflox/flox mice can rescue in utero death of Apcmin/flox mutant conceptus without subsequent post-mortem assessment of WNT/β-catenin signalling. Indeed, the phenotypic plasticity of born Apcmin/flox conceptus enables future refinement of our assay to potentially enable dosage finding and cross-compound comparisons. Thus, we show for the first time the suitability of endogenous WNT/β-catenin signalling during embryonic development to provide an unambiguous and sensitive mammalian in vivo model to assess the efficacy and bioavailability of potential WNT/β-catenin antagonists. |
|
|
| Link |
|
| Citation |
|
Biomedicines 2023-10-07; 11(10) |
|
|
| Jornal Title |
|
