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Michael Sieweke Group

Stem Cell and Macrophage Biology

Portrait Michael Sieweke

Our research is located at the interface of immunology and stem cell research and our recent findings lay the groundwork for new cellular therapy approaches in regenerative medicine. One important line of our work has revealed mechanisms how hematopoietic stem cells can generate more myeloid cells to protect transplant recipients from lethal infections. Furthermore, we discovered that macrophages, mature cells of the immune system, can activate a network of genes shared with embryonic stem cells that enables them to proliferate indefinitely. Based on these discoveries macrophages can be amplified in culture as mature differentiated cells, without stem cell intermediates or tumorigenic transformation. Our results show the compatibility of self-renewal and differentiation and open the door for new macrophage based therapies.

CV

since 2018
Group leader at the CRTD, Alexander von Humboldt Professorship at TU Dresden

since 2014
EMBO member

since 2012
Head of Helmholtz-INSERM Joint Research Unit, CIML, Marseille, and MDC, Berlin

since 1999
Directeur de Recherche CNRS and group leader at CIML, Marseille

1996–1999
Staff Scientist at EMBL

1991–1995
Postdoctoral training at EMBL

1990
PhD, University of California, Berkeley

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Sieweke Group at TUD CRTD

Selected Publications

Matcovitch-Natan O, Winter DR, Giladi A, Vargas Aguilar S, Spinrad A, Sarrazin S, Ben-Yehuda H, David E, Zelada Gonzalez F, Perrin P, Keren-Shaul H, Gury M, Lara-Astaiso D, Thaiss CA, Cohen M, Halpern KB, Baruch K, Deczkowska A, Lorenzo-Vivas E, Itzkovitz S, Elinav E, Sieweke MH*, Schwartz M*, Amit I*
Microglia development follows a stepwise program to regulate brain homeostasis.
Science 353, aad8670. (2016) [* equal contribution]

Soucie EL, Wenig W, Geirsdóttir L, Molawi K, Maurizio J, Fenouil R, Mossadegh-Keller N, Gimenez G, VanHille L, Beniazza M, Favret J, Berruyer C, Perrin P, Hacohen N, Andrau JC, Ferrier P, Dubreuil P, Sidow A, Sieweke MH
Lineage-specific enhancers activate self-renewal genes in macrophages and embryonic stem cells
Science 351, aad5510 (2016)

Mossadegh-Keller N, Sarrazin S, Kandalla PK, Espinosa L, Stanley RE, Nutt SL, Moore J, Sieweke MH
M-CSF instructs myeloid lineage fate in single haematopoietic stem cells.
Nature 9, 239–243 (2013)

Aziz A, Soucie E, Sarrazin S, Sieweke MH
MafB/c-Maf deficiency enables self-renewal of differentiated functional macrophages.
Science 326, 867–871 (2009)

Sarrazin S, Mossadegh-Keller N, Fukao T, Aziz A, Mourcin F., Kelly L, Vanhille L, Kastner P, Chan S, Duprez E, Otto, C, Sieweke MH
MafB restricts M-CSF dependent myeloid commitment divisions of hematopoietic stem cells.
Cell 138, 300–313 (2009)

Contact

Center for Regenerative Therapies Dresden
TU Dresden
Fetscherstraße 105
01307 Dresden