"JaK has a history of making very relevant and current statements, " typically within 48 hours, Zenn told CNN.

CNN: How did Mohammed Merah become a jihadist?

He worked with Sega on Sonic the Hedgehog, Jak and Daxter, Ratchet and Clank, lead engineer of the PS4.

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Zenn said JaK's apparent claim of responsibility posted Thursday was in similar form to others posted by the group.

CNN: How did Mohammed Merah become a jihadist?

However, JaK was not publicly known when Merah was in the region.

CNN: How did Mohammed Merah become a jihadist?

To prove the importance of the JAK pathway, someone needed to discover a compound to test the hypothesis that inhibiting the JAK enzyme was of value in treating disease.

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Jacob Zenn, a Jamestown Foundation analyst who has researched JaK, told CNN the group has a track record of quickly and credibly claiming responsibility for attacks in Kazakhstan since its founding in September 2011.

CNN: How did Mohammed Merah become a jihadist?

Does remind me of Jak and Daxter.

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The excitement over Canadian-based YM and its presentation of data from phase I and II clinical trials at ASCO centers not only on its positive data on myelofibrosis but on indications its JAK inhibitors may also have applications in solid tumors, as well as inflammatory diseases, says Chrystyna Bedrij, biotech analyst at Griffin Securities.

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