The Genome Editing and Mouse Models (GEMM) facility is a core service dedicated to generating novel genetically engineered mice.
We specialise in providing comprehensive genome editing services and developing precise mouse models to advance cancer research.
GEMM offers an all-inclusive service from conceptualisation through model generation and validation.
Our services cover every step, from targeting design to confirmation of germline transmission.
This includes:
- Generation of genetically modified mice via CRISPR-Cas technology, random transgenesis and embryonic stem cell targeting
- Identification of correct genome edited alleles (Sanger sequencing and long reads sequencing)
- Cryopreservation of mouse embryos and gametes
- Import and export of mouse models from and to collaborators outside CRUK MI and repositories
- Assisted reproductive technologies (e.g. in-vitro fertilization and rederivation)
- Colony management and complex genotyping design
Featured Publications

The PI3K-AKT-mTOR axis persists as a therapeutic dependency in KRASG12D-driven non-small cell lung cancer
12th November 2024
The Genome Editing and Mouse Models facility generated the conditional KRASG12C mice in this publication. Authors show that KRASG12D is more potent than KRASG12C in driving NSCLC initiation in vivo.

The small inhibitor WM-1119 effectively targets KAT6A-rearranged AML, but not KMT2A-rearranged AML, despite shared KAT6 genetic dependency
8th October 2024
The epigenetic factors KAT6A and KMT2A interact in normal hematopoiesis to regulate progenitors’ self-renewal. Authors evaluated the potential of different KAT6A therapeutic targeting strategies to alter the growth of KAT6A and KMT2A rearranged AMLs.
Online Resources – contributions from the GEMM team
Members of the GEMM team regularly participate in panels and discussions related to colony management and other areas of animal research. They have contributed their expertise and insights to several resources for the wider animal research community:
- Sharing & archiving of genetically altered mice: Opportunities for reduction and refinement
- – Produced by The National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs) Breeding and colony management working group

Find all the GEMM team publications
https://doi.org/10.1186/s12943-024-02157-x
The PI3K-AKT-mTOR axis persists as a therapeutic dependency in KRASG12D-driven non-small cell lung cancer
12 November 2024
Institute Authors (1)
Amaya Viros
Labs & Facilities
Genome Editing and Mouse Models
Research Group
Skin Cancer & Ageing
12 November 2024
https://doi.org/10.1186/s13045-024-01610-0
The small inhibitor WM-1119 effectively targets KAT6A-rearranged AML, but not KMT2A-rearranged AML, despite shared KAT6 genetic dependency
8 October 2024
Institute Authors (6)
Georges Lacaud, Mathew Sheridan, Michael Lie-a-ling, Liam Clayfield, Jessica Whittle, Jingru Xu
Research Group
Stem Cell Biology
8 October 2024
/wp-content/uploads/2024/11/Annual-Report-2023.pdf
2023 Annual Report
13 September 2024
13 September 2024
https://doi.org/10.1126/science.adh7954
Vitamin D regulates microbiome-dependent cancer immunity
25 April 2024
Institute Authors (1)
Evangelos Giampazolias
Research Group
Cancer Immunosurveillance
25 April 2024
https://doi.org/10.1038/s41684-024-01363-w
Streamlining mouse genome editing by integrating AAV repair template delivery and CRISPR-Cas electroporation
10 April 2024
Institute Authors (1)
Natalia Moncaut
Labs & Facilities
Genome Editing and Mouse Models
10 April 2024
https://www.biorxiv.org/content/10.1101/2023.12.13.568969v1
A novel human model to deconvolve cell-intrinsic phenotypes of genetically dysregulated pathways in lung squamous cell carcinoma
14 December 2023
Institute Authors (3)
Carlos Lopez-Garcia, Caroline Dive, Anthony Oojageer
Research Group
Translational Lung Cancer Biology
14 December 2023
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A note from the Team Leader – Natalia Moncaut
GEMM offers an all-inclusive service from conceptualisation through model generation and validation. Our services cover every step, from targeting design to confirmation of germline transmission