• Research blog
Tuesday, 16. September 2025

Loss of STAT3 in Acute Myeloid Leukemia Favors Tissue Infiltration Linked to CXCR4 Signaling

Recent Publication


 

Researchers in the Division of Pharmacology have discovered that the loss of the STAT3 protein in acute myeloid leukaemia (AML) increases the spread of cancer cells to organs such as the liver and spleen. This effect was particularly strong in a subtype with certain gene mutations. The cause of this is the molecule CXCR4, which helps leukaemia cells to penetrate tissue like a ‘docking point’. Analyses of patient data confirmed that high CXCR4 levels mean a poorer prognosis. The results show that blocking STAT3 in therapy could have unexpectedly negative consequences.

 

Zdársky, B., Edtmayer, S., Witalisz-Siepracka, A., Weiss, S., Boigenzahn, S., Heindl, K., Zahma, S., Győrffy, B., Moriggl, R., & Stoiber, D. (Accepted/In press). Loss of STAT3 in Acute Myeloid Leukemia Favors Tissue Infiltration Linked to CXCR4 Signaling. Blood Neoplasia, 100158. https://doi.org/10.1016/j.bneo.2025.100158

Bernhard Zdársky PhD

Bernhard Zdársky PhD

Scientific Staff (PostDoc), Works Council
Department of Pharmacology

Sophie Rosa Edtmayer MSc PhD

Sophie Rosa Edtmayer MSc PhD

Scientific Staff (PostDoc)
Department of Pharmacology

Agnieszka Witalisz-Siepracka PhD

Agnieszka Witalisz-Siepracka PhD

Scientific Staff (PostDoc)
Department of Pharmacology

Kerstin Heindl MSc

Kerstin Heindl MSc

Biomedical analyst
Department of Pharmacology

Univ.-Prof. PD MMag. Dr. Dagmar Stoiber-Sakaguchi

Univ.-Prof. PD MMag. Dr. Dagmar Stoiber-Sakaguchi

Head of
Department of Pharmacology