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Portrait Anna Taubenberger
Current Research

Cancer cells and their surrounding tissue are characterised by altered mechanical properties. So far, it is not well understood how precisely these mechanical changes affect the cells’ metastatic potential in vivo. We address this question by mechanically characterising tumour samples to instruct physiologically relevant 3D in vitro models. These are then in combination with in vivo models employed to systematically study the role of cell and microenvironment stiffness on tumour spheroid growth, invasion, drug resistance, and metastasis. We aim at elucidating mechanisms by which cells sense their mechanical environment in 3D and how this can be potentially exploited for new therapeutic approaches.

Previous Research

Our previous work has shown that growth in stiff microenvironments causes compressive stress on breast cancer spheroids, which concomitantly alters their cytoskeleton organisation, increases constituent cell stiffness and slows down cell cycle progression. This contributes to a better understanding of how tumor cells adapt their proliferation under compressive stress in confining microenvironments. To characterise cell mechanical properties from single cells to complex tissues, a toolbox of atomic force microscopy, Brillouin microscopy and RT-DC is used.

Anna Taubenberger Research: Figure
Figure: (left) Breast cancer tumor spheroid (F-actin, Cytokeratin 8/18, nuclei stained) top middle: SEM image of tumor spheroid. Down middle: tumor spheroid with cell-sized stress sensors (PAA beads) indicating compressive stress upon growth in stiff microenvironments. Right top: schematics of AFM indentation test, right middle: human adipocytes (lipid droplets, F-actin, nuclei stained). Right down: Cancer associated fibroblast imaged by AFM.

Future Projects and Goals

  • Investigate the link between microenvironment mechanics and spheroid growth, mechanics, and invasion using bioengineered in vitro models.
  • Test the functional role of cell mechanics in cancer cell invasion and metastasis using in vitro and in vivo models.
  • Unravel mechanisms of how cells sense the mechanical properties of their 3D microenvironment.
  • Identify clinical markers for individualized breast cancer therapy.

Methodological and Technical Expertise

  • Atomic force microscopy (AFM)
  • Real-time Deformability Cytometry
  • 3D cultures (tumor spheroids, hydrogels)

Currently Recruiting

Anna Taubenberger is recruiting in the PhD Fall Selection 2020 (call is closed)

CV

Since 05/2020
Mildred-Scheel-Nachwuchszentrum (MSNZ) research group leader, affiliated with BIOTEC TU Dresden, Germany

2013–2020
Postdoctoral Fellow, BIOTEC Dresden, Germany

2009–2012
Postdoctoral Fellow, Queensland University of Technology, Australia

2009
PhD in Engineering, Technische Universität Dresden

2001–2002
Universidad de Talca, Chile

2004
Diploma (Masters) in Bioprocess Engineering, Technische Universität Dresden, Germany

Selected Publications

Matthews HK, Ganguli S, Plak K, Taubenberger AV, Piel M, Guck J, Baum B
Oncogenic signaling alters cell shape and mechanics to facilitate cell division under confinement.
Developmental Cell 52:563 (2020)

Taubenberger A, Girardo S, Träber N, Fischer Friedrich E, Kräter M, Wagner K, Kurth T, Richter I, Haller B, Binner M, Hahn D, Freudenberg U, Werner C, Guck J
3D microenvironment stiffness regulates tumor spheroid growth and mechanics via p21 and ROCK.
Advanced Biosystems 3(9):1900128 (2019).

Tavares S, Vieira AF*, Taubenberger AV*, Araújo M*, Pimpao Santos Martins N, Brás-Pereira C, Polónia A, Herbig M, Barreto C, Otto O, Cardoso J, Pereira-Leal JB, Guck J, Paredes J, Janody F
Actin stress fiber organization promotes cell stiffening and proliferation of pre-invasive breast cancer cells.
Nature Communications 8:15237 (2017)

Taubenberger AV, Bray LJ, Haller B, Shaposhnykov A, Binner M, Freudenberg U, Guck J, Werner C
3D extracellular matrix interactions modulate tumour cell growth, invasion and angiogenesis in engineered tumour microencironments.
Acta Biomaterialia. 2016 May;36:73–85 (2016)

Thibaudeau L*, Taubenberger AV*, Theodoropoulos C, Holzapfel BM, Ramuz O, Straub M, Hutmacher DW
New mechanistic insights of integrin β1 in breast cancer bone colonization.
Oncotarget 6(1):332–44 (2015)

*equal contribution

Contact

Technische Universität Dresden
Biotechnology Center
Tatzberg 47/49
01307 Dresden, Germany