Understanding and precision targeting of malfunctioning gene regulatory elements in human cancer and other enhanceropathies

We're hiring!

Want to join our team? A two-year extendable post-doc/researcher position is open at our lab for a skilled experimental wet-lab scientist! Applications are considered on a rolling basis and positions will be filled immediately!

If you’re interested, please apply below, or contact us for more information.

About our lab

The Precision Cancer Epigenomics laboratory at NCMM (Nordic-EMBL Partnership Institute) at the University of Oslo, Norway started in September 2022.

The Enhancer Biology lab started in June 2019 in the Applied Tumor Genomics research program of the Faculty of Medicine at the University of Helsinki, Finland.

We have a total of 10 group members in both our Oslo and Helsinki groups, lead by Dr Biswajyoti Sahu, and we are looking forward to grow in the coming days!

Our goal is to understand the molecular mechanisms of chromatin reprogramming by transcription factors in cell fate control and in cancer and human enhanceropathies.

We use state-of-the-art genomics methods for transcription factor binding, functional enhancer activity, chromatin accessibility and genome editing by CRISPR-Cas9.

We employ computational tools to analyse and integrate genome wide datasets from several multiomics methods utilising next-generation sequencing.

Our research

Role of defined transcription factors in cell fate and organ-specific cancer

We use novel cell fate conversion methods to study the early regulatory events in pancreatic cancer – one of the most lethal cancer types currently lacking clear diagnostic markers and effective treatment options.

Non-coding regulatory genome and enhancer malfunction in cancers of ENDODERMAL LINEAGE

Our goal is to understand the human regulatory elements in enhancer reprogramming and malfunction using a plethora of functional genomics methods in several cancer types of endodermal lineage.

Reprogamming of the Epigenome during cancer progression and ENDOMETRIOSIS

To understand the epigenome reprogramming events during disease progression, we are using hospital biobank samples for prostate cancer and innovative cell-based models for delineating the molecular causes of endometriosis.

Our methods

To achieve our research objectives, we utilize various cutting-edge genome-wide techniques based on next generation sequencing and their computational analysis from bulk samples to single cell and single molecule resolution.

Latest news

We’ve received a grant from the ‘Norwegian Cancer Society (Kreftforeningen)’

Our team

Biswa Sahu

I lead the Precision Cancer Epigenomics laboratory in Oslo and the Enhancer Biology laboratory in Helsinki. I am genomics scientist by training and the primary goal of my research is to understand the role of transcription factors and the non-coding regulatory genome in human enhanceropathies such as cancer.

I am a Group Leader in Centre for Molecular Medicine (NCMM, Nordic-EMBL Partnership Institute) of the Faculty of Medicine at the University of Oslo, Norway and also hold an Adjunct Researcher position at the Oslo University Hospital in the Department of Cancer Genetics at the Institute of Cancer Research in Norway.

I am also a Principal Investigator at the Applied Tumor Genomics program of the Research Programs Unit at the Faculty of Medicine, University of Helsinki, Finland. I also hold the title of Docent in Molecular Genetics from the University of Helsinki, Finland.

Samuele Cancellieri, PhD
Post-doc
Liangru Fei, PhD
Post-doc
Divyesh
Divyesh Patel, PhD
Post-doc
Ville
Ville Tiusanen, MSc
PhD student
Celina
Celina Wiik, MSc
PhD Student
Chi Xu
Chi Xu, MSC
PhD Student
Jiahao Guo
Jiahao Guo, MSc
Researcher
Hanxuan Sheng
Hanxuan Sheng, MSc
Researcher
Konsta
Konsta Karttunen, MsC
Researcher
Veera
Veera Erkkilä
Lab Manager
Pia Ahnstrøm
Pia Ahnstrøm
Lab Engineer
Solveig Bakken
MSc Student
Marlene Metz
MSc Student

Latest publications

The combination of immunotherapy and epigenetic therapy is emerging as a promising approach for cancer therapy. Epigenetic therapy can induce derepression of transposable elements (TEs) that play a major role in activation of immune response against cancer cells.

Here, we have generated pancreatic exocrine cells of ductal epithelial identity from human fibroblasts using a set of six TFs. We mapped the molecular determinants of lineage dynamics using a factor-indexing method based on single-nuclei multiome sequencing (FI-snMultiome-seq) that enables dissecting the role of each individual TF and pool of TFs in cell fate conversion.

Here, we show the role of transposable elements as cancer-specific enhancers using unbiased functional enhancer assay using massively parallel reporter assays (MPRAs, STARR-seq) together with orthogonal functional genomics methods for chromatin accessibility, histone modifications and transcription factor binding.

Contact

If you’d like to get in touch, please use the contact form, call us by phone or visit our lab in Oslo or Helsinki.

Feel free to contact us about possible collaboration opportunities! Motivated researchers (post-docs, PhD, Master’s students) can always contact us to ask about thesis projects and available positions.

Affiliation and funding

STIFTELSEN ASTRI OG BIRGER TORSTEDS LEGATER