Position: Postdoc in Spatial Genomics

Department: Artificial Intelligence in Oncology

Code number: 2022-0153

The German Cancer Research Center is the largest biomedical research institution in Germany. With more than 3,000 employees, we operate an extensive scientific program in the field of cancer research.

The laboratory of Dr. Moritz Gerstung (Division of Artificial Intelligence in Oncoclogy) at the German Cancer Research Center (DKFZ) is looking for a postdoctoral fellow in spatial genomics. The group studies cancer evolution using a combination of AI analysis and new experimental technologies [1,2]. We have recently co-developed experimental protocols to detect mutations in tissue sections which map how cancers have grown in their tissue context [3]. This method, termed base specific in situ sequencing (BaSISS) extends the Cartana/10x ISS protocol. The BaSISS protocol combines sequencing of a tumour to identify mutations and localises these variants in a tumour section with single molecule padlock probes, which are interrogated by cyclic fluorescence microscopy. Our newly developed spot detection algorithm [4] then extracts signals from 100,000s of cells in a tissue, which are assembled into maps of subclonal growth. The protocols also allow for measuring the histopathological and transcriptomic changes acquired during tumour progression.


Job description:

We are looking for an experimental postdoc to apply these spatial genomics technologies to study the evolution of sarcomas and other cancer types. You will work alongside other lab members and in collaboration with the Single-cell Open Lab [5] to pursue our efforts to use spatial genomics for studying cancer evolution in our new lab at DKFZ [6] which opened in September 2021. Being part of an international interdisciplinary team working both experimentally and computationally will offer you a comprehensive training and opportunities to broaden your horizon in many ways. Furthermore, you will have the opportunity to take full advantage of all the training and social activities the DKFZ International Postdoc Program has to offer [7]. The starting date is flexible, depending on candidate preferences.

Your responsibilities:

  • Implement and run BaSISS and general ISS experiments
  • Run 10x visium spatial transcriptomics arrays on fresh and fixed tissues
  • Implement other standard in situ hybridisation assays (e.g. RNAscope, Nanostring GeoMx) widely utilized in the field

Further information:

  1. Fu, Y. et al. Pan-cancer computational histopathology reveals mutations, tumor
    composition and prognosis. Nature Cancer 1, 800–810 (2020)
  2. Gerstung, M. et al. The evolutionary history of 2,658 cancers. Nature 578, 122–128
  3. Lomakin, A. et al. Spatial genomics maps the structure, character and evolution of
    cancer clones. bioRxiv (2021) doi:10.1101/2021.04.16.439912
  4. Gataric, M. et al. PoSTcode: Probabilistic image-based spatial transcriptomics
    decoder. bioRxiv (2021) doi:10.1101/2021.10.12.464086
  5. https://www.dkfz.de/en/single-cell-sequencing/open-lab.html
  6. https://www.dkfz.de/en/kuenstliche-intelligenz-in-der-onkologie/index.php 
  7. https://www.dkfz.de/en/postdoc-program/index.html 



Key skills:

  • A PhD in biological sciences or related field, with a focus on histology
  • Advanced experience with tissue preservation (e.g. fixation, cryo-preservation) and sectioning including both paraffin embedded and frozen tissue material
  • Experience in fluorescence microscopy of cells or tissues
  • A proven track record of delivering ambitious biomedical research projects
  • Excellent communication skills in English and the ability to work effectively within a team

Desirable skills:

  • Experience with immunohistochemistry and in situ hybridization
  • Knowledge of image data pre-processing
  • Ability to test, implement and troubleshoot new techniques and protocols
  • Attention to detail and record keeping for sample and experimental tracking

We offer:

  • Interesting, versatile workplace
  • International, attractive working environment
  • Campus with modern state-of-the-art infrastructure
  • Salary according to TV-L including social benefits
  • Possibility to work part-time
  • Flexible working hours
  • Comprehensive further training program
  • Access to the DKFZ  International Postdoc Program

Important notice:

The DKFZ is subject to the regulations of the Infection Protection Act (IfSG). As a consequence, only persons who present proof of immunity against measles as well as against COVID-19 may work at the DKFZ.

Earliest possible start date: as soon as possible

Duration: The position is limited to 3 years with the possibility of prolongation. ‚Äč

The position can in principle be part-time.

Application deadline: 15.06.2022


Dr. Moritz Gerstung
Phone +49 (0)6221/42-4522

Please note that we do not accept applications submitted via email.

The DKFZ is committed to increase the proportion of women in all areas and positions in which women are underrepresented. Qualified female applicants are therefore particularly encouraged to apply.

Among candidates of equal aptitude and qualifications, a person with disabilities will be given preference.

To apply for a position please use our online application portal (https://www.dkfz.de/en/stellenangebote/index.php).

We ask for your understanding that we cannot return application documents that are sent to us by post (Deutsches Krebsforschungszentrum, Personalabteilung, Im Neuenheimer Feld 280, 69120 Heidelberg) and that we do not accept applications submitted via email. We apologize for any inconvenience this may cause.