Chair of Biochemistry and Molecular Biology

    AG Diefenbacher

    Dr. Markus E. Diefenbacher

    Lehrstuhl für Biochemie und Molekularbiologie
    Am Hubland
    97074 Würzburg
    Raum B 328/329

    Tel:   0931 31-88167
    Fax:  0931 31-84113

    Curriculum Vitae

    Our research focus is the deregulation of protein turnover as a central driver in tumourigenesis.


    Lab News

    ‘’July 2021: Check out our work on the exquisite dependence of PTEN mutant Non-Small Cell Lung Cancer for ATM to evade radiotherapy, available as preprint via BioRxiv: https://www.biorxiv.org/content/10.1101/2021.07.24.453632v1

    “June 2021: Coming soon! We are recruiting a PhD student in tumourigenesis with a background in biochemistry or biomedicine.”

    “May 2021: Our graduate college “Understanding Ubiquitylation: From Molecular Mechanisms to Diseases” was granted a second funding period by the DFG for another 4,5 years starting in October 2021!”

    “Feb 2021: Dr. Camina Fuss started as a new member of our lab. As a clinican scientist, her research work will focus on modelling adrenocortical cancer and identification of so far unexplored dependencies and vulnerabilities for therapy.




    Mainz, L., Sarhan, M. A. F. E., Roth, S., Sauer, U., Maurus, K., Hartmann, E. M., Seibert, H.-D., Rosenwald, A., Diefenbacher, M. E. & Rosenfeldt, M. T. (2022) Autophagy Blockage Reduces the Incidence of Pancreatic Ductal Adenocarcinoma in the Context of Mutant Trp53, Frontiers in Cell and Developmental Biology. 10.

    Mainz, L., Sarhan, M., Roth, S., Sauer, U., Kalogirou, C., Eckstein, M., Gerhard-Hartmann, E., Seibert, H. D., Voelker, H. U., Geppert, C., Rosenwald, A., Eilers, M., Schulze, A., Diefenbacher, M. & Rosenfeldt, M. T. (2022) Acute systemic knockdown of Atg7 is lethal and causes pancreatic destruction in shRNA transgenic mice, Autophagy, 1-14.


    Ruiz, E. J., Lan, L., Diefenbacher, M. E., Riising, E. M., Da Costa, C., Chakraborty, A., Hoeck, J. D., Spencer-Dene, B., Kelly, G., David, J. P., Nye, E., Downward, J. & Behrens, A. (2021) JunD, not c-Jun, is the AP-1 transcription factor required for Ras-induced lung cancer, JCI Insight. 6.

    Prieto-Garcia, C., Tomašković, I., Shah, V. J., Dikic, I. & Diefenbacher, M. (2021) USP28: Oncogene or Tumor Suppressor? A Unifying Paradigm for Squamous Cell Carcinoma, Cells. 10, 2652.

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    Emil Hilb Programm

    "Targeting protein stability in lung squamous cell carcinoma"

    "Establishing a human colorectal cancer organoid bank" Collaboration with Armin Wiegering

    "Unmasking E3-ligase-DUB pairs in colorectal cancer"