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Anaplastic Large Cell Lymphomas (ALCL) are rare tumors of white blood cells, which fall into at least four categories. New research by the international ERIA consortium led by scientists in Vienna have now identified that all types of ALCL rely on the same signaling pathway for survival. TYK2 prevents apoptotic cell death by increasing the expression of the BCL2 family member Mcl1. Therefore TYK2 represents an attractive drug target due to its unique enzymatic domain, and TYK2-specific inhibitors show promise as novel targeted inhibitors for ALCL.
Personalised medicine is pioneered in cancer therapy, where diagnostic tools increasingly dissect tumor entitites in ever smaller sub-indication with the aim to devise individial therapeutic strategies. Therefore the molecular analysis of human tumor samples for new therapeutic targets and their validation in tumor models has become a main stay of cancer research to advance clinical management of cancer patients. However, this poses several challenges for clinicians, including the extensive diagnostic work-up of patients, but also the limited amount of information how to treat small patient groups. This is even more pressing for rare tumors, like ALCL with a very small number of patients
Therefore Olaf Merkel of the Medical University Vienna and his colleagues are happy to report now in the Journal “Leukemia” that instead of subdividing ALCL subgroups even further, they could identify a common player in all ALCL patients. TYK2 is not only expressed in all patients, it mediates the same anti-apoptotic response, which keeps the lymphoma cells alive and thus supports the growth of the tumor. “Therefore we could consider TYK2 signalling as the Achilles’ heel of ALCL, as in all patients we have analysed the tumor cells relied on this activity to support the essential survival signal” explains the senior author of this publication, Olaf Merkel. Withdrawing the Tyk2 signal in cell culture resulted in extensive cell death and in mice treated with an experimental drug switching off Tyk2 the researchers observed a much longer survival.
Lukas Kenner of the Ludwig Boltzmann Institute of Cancer Research and co-founder of the European Research Initiative on Alk-mediated diseases (ERIA) underscores the potential therapeutic importance in ALCL of TYK2 inhibitors. “We are looking forward to Tyk2 inhibitors becoming available, which are currently developed to treat immunological disorders, because in the more rare lymphomas we urgently need better therapies”, he points out.
Service:
The article Dependency on the TYK2/STAT1/MCL1 axis in anaplastic large cell lymphoma by Nicole Prutsch, Elisabeth Gurnhofer, Tobias Suske, Huan Chang Liang, Michaela Schlederer, Simone Roos, Lawren C. Wu, Ingrid Simonitsch-Klupp, Andrea Alvarez-Hernandez, Christoph Kornauth, Dario A. Leone, Jasmin Svinka, Robert Eferl, Tanja Limberger, Astrid Aufinger, Nitesh Shirsath, Peter Wolf, Thomas Hielscher, Fritz Aberger, Johannes Schmoellerl, Dagmar Stoiber, Birgit Strobl, Ulrich Jäger, Philipp B. Staber, Florian Grebien, Richard Moriggl, Mathias Müller, Giorgio G. Inghirami, Takaomi Sanda, A. Thomas Look, Suzanne D. Turner, Lukas Kenner, Olaf Merkel was published in Leukemia.
https://www.nature.com/articles/s41375-018-0239-1
About the University of Veterinary Medicine, Vienna
The University of Veterinary Medicine, Vienna in Austria is one of the leading academic and research institutions in the field of Veterinary Sciences in Europe. About 1,300 employees and 2,300 students work on the campus in the north of Vienna which also houses five university clinics and various research sites. Outside of Vienna the university operates Teaching and Research Farms. The Vetmeduni Vienna plays in the global top league: in 2018, it occupies the excellent place 6 in the world-wide Shanghai University veterinary in the subject "Veterinary Science". http://www.vetmeduni.ac.at
Scientific Contact:
Lukas Kenner
Unit of Pathology of Laboratory Animals
University of Veterinary Medicine Vienna (Vetmeduni Vienna)
T +43 1 25077-2421
lukas.kenner@vetmeduni.ac.at
Released by:
Georg Mair
Science Communication / Corporate Communications
University of Veterinary Medicine Vienna (Vetmeduni Vienna)
T +43 1 25077-1165
georg.mair@vetmeduni.ac.at
Unit of Pathology of Laboratory Animals
University of Veterinary Medicine Vienna (Vetmeduni Vienna)
T +43 1 25077-2421
lukas.kenner@vetmeduni.ac.at
Dependency on the TYK2/STAT1/MCL1 axis in anaplastic large cell lymphoma
Nicole Prutsch, Elisabeth Gurnhofer, Tobias Suske, Huan Chang Liang, Michaela Schlederer, Simone Roos, Lawren C. Wu, Ingrid Simonitsch-Klupp, Andrea Alvarez-Hernandez, Christoph Kornauth, Dario A. Leone, Jasmin Svinka, Robert Eferl, Tanja Limberger, Astrid Aufinger, Nitesh Shirsath, Peter Wolf, Thomas Hielscher, Fritz Aberger, Johannes Schmoellerl, Dagmar Stoiber, Birgit Strobl, Ulrich Jäger, Philipp B. Staber, Florian Grebien, Richard Moriggl, Mathias Müller, Giorgio G. Inghirami, Takaomi Sanda, A. Thomas Look, Suzanne D. Turner, Lukas Kenner, Olaf Merkel . Leukemia. https://doi.org/10.1038/s41375-018-0239-1
https://www.vetmeduni.ac.at/en/infoservice/press-releases/presse-releases-2018/s...
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