Postdoctoral Fellow Cancer Biologist – V Li lab
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Details of the role:
Reports to: Vivian Li, Senior Group Leader
Working pattern: This is a full-time, fixed term 4 year position on Crick terms and conditions of employment.
Salary: From £45,500 with benefits, subject to skills and experience.
Application closing date: 30th of March 2026 at 23.59pm
About us
The Francis Crick Institute is Europe’s largest biomedical research institute under one roof. Our world-class scientists and staff collaborate on vital research to help prevent, diagnose and treat illnesses such as cancer, heart disease, infectious diseases and neurodegenerative conditions.
The Crick is a place for collaboration, innovation and exploration across many disciplines. A space where the brightest minds can pursue big and bold ideas and discover answers to crucial scientific questions. We support them in a dynamic environment which fosters excellence with state-of-the-art infrastructure, cutting-edge facilities, and a creative and curious culture. We’ve removed traditional boundaries of departments, divisions and disciplines and instead have an open approach that supports every researcher. This gives us the freedom to take risks and carry out high-quality, pioneering research. Creating a space for discovery without boundaries helps us to turn our science into benefits for human health and the economy.
About the role
Dr Li’s laboratory investigates the functional implication of Wnt signalling pathway in intestinal stem cells, regeneration and cancer with emphasis of finding new tumour-specific targets. Her lab combines genetically engineered mouse models, patient-derived organoids, and advanced genomic tools to investigate how Wnt signalling and cell state plasticity contribute to homeostasis and disease, particularly in the context of therapy resistance in colorectal cancer.
We are looking for an ambitious cancer biologist to work in Dr Li laboratory who can integrate functional CRISPR screens with single-cell and spatial transcriptomics to uncover the mechanisms driving cell state rewiring and therapeutic resistance in cancer.
Details of research projects currently being undertaken can be seen at: https://www.crick.ac.uk/vivian-li/.
The Project
Cell state plasticity is a fundamental process in both health and disease. In the intestine, plasticity plays a pivotal role in cell fate decision, injury-induced regeneration and cancer. Upon tissue injury, the intestinal epithelium regenerates through transient reprogramming of committed adult cells to a fetal-like state, a process that is ultimately resolved. In cancer, dynamic shifts in cancer cell states promote tumour progression and therapeutic resistance across multiple cancer types. Despite extensive knowledge documenting cellular plasticity within the intestinal crypt, it remains unclear how cell state rewiring is initiated and resolved during tissue regeneration, and why plasticity fails to resolve in cancer.
Understanding the role of cell state rewiring in cancer represents a critical frontier for overcoming therapeutic resistance in cancer. The Li laboratory hypothesise that oncogenic mutations and therapeutic pressure drive dynamic cell-state rewiring through intrinsic and extrinsic signals, and that decoding this rewiring will expose novel, targetable vulnerabilities to overcome therapeutic resistance. To systematically uncover therapeutic vulnerabilities, we will conduct unbiased CRISPR-Cas9 loss-of-function screens in colorectal cancer (CRC) organoids in vitro and in engrafted tumour models in vivo. We will also perform single-cell and spatial transcriptomics to map cancer cell state transitions under therapeutic pressure.
This project is funded by CRUK Cancer Grand Challenges REWIRE-CAN programme.
What you will be doing
In this project, some of the specific aims include but are not limited to:
- Assess therapeutic response in primary CRC organoids in vitro and implanted tumours in vivo
- Loss-of-functional whole-genome/sub-genome CRISPR screen in vitro and in vivo to reveal treatment vulnerability
- Single-cell and spatial transcriptomic analysis of treated organoids and tumour
- Computational modelling of cell state rewiring network
- Functional validation of identified targets in various tumour models
- Drug efficacy testing in mice
You will be responsible for:
- Performing CRISPR screen and testing drug efficacy in organoids and in mice
- Liaising with members of the REWIRE-CAN team to perform experiments and communicate data and results
- Writing and contributing to the preparation of scientific manuscripts, reports, presentations and records of experimental plans and results
- Supervising and providing technical advice to more junior members of the team when appropriate
Please click here for full job description
About you
You will have:
- PhD in Developmental Biology, Stem Cell or Cancer Biology or in the final stages of PhD submission*
- Experience in 3D cancer organoid culture and tumour implantation studies*
- Experience in functional CRISPR screen*
- Excellent track record of research as evidenced by publications in referred journals*
- Experience in advanced genomic sequencing and data analysis
- Experience in spatial transcriptomic data analysis
- Animal work experience
- Experience in drug safety and efficacy studies
- Evidence of data presentation at scientific meetings
Minimum criteria*
About Working at the Crick
Our values
Everyone who works at the Crick has a valuable role to play in advancing the Crick’s mission and shaping our culture.
- We are bold. We make space for creative, dynamic and imaginative ideas and approaches. We’re not afraid to do things differently.
- We are open. We’re highly collaborative and interactive, and make sure our activities are visible to the outside world.
- We are collegial. We show respect for one another, work cooperatively and support the wider community.
At the Francis Crick Institute, we believe that diversity and inclusion are essential to driving innovation and scientific discovery. We are committed to creating a workplace where everyone feels valued, respected, and empowered to succeed, regardless of their background, identity, or personal circumstances. We actively encourage applications from individuals of all genders, ethnicities, abilities, and experiences. We are a Disability Confident: Committed employer and want to ensure that everyone can apply and be part of our recruitment processes and so we'll make reasonable adjustments if you need them - just let us know when you apply. If you need assistance with applying (i.e., would like to apply by phone or post) please email: karen.au@crick.ac.uk
Find out more about life at the Crick.
What will you receive?
At the Francis Crick Institute, we value our team members and are proud to offer an extensive range of benefits to support their well-being and development:
- Visas: Applicants for this role will be eligible for sponsorship to work in the UK
- Generous Leave: 28 days of annual leave, plus three additional days over Christmas and bank holidays.
- Pension Scheme: Defined contribution pension with employer contributions of up to 16%.
Please note you must meet the essential criteria listed within the Role Profile, to have your application reviewed.
We reserve the right to withdraw this advert at any given time due to the number of applications received.