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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Expression of receptor tyrosine kinase HTK (hepatoma transmembrane kinase) and HTK ligand by human leukemia-lymphoma cell lines.

HTK (hepatoma transmembrane kinase) is a receptor tyrosine kinase belonging to the EPH subfamily of tyrosine kinases. Binding of its ligand (HTKL) results in tyrosine phosphorylation of HTK. In the present study, we analyzed the possible involvement of this ligand-receptor signalling system in hematopoiesis by examining the expression of both HTK and HTKL in a large and comprehensive panel of 70 continuous human leukemia-lymphoma cell lines. HTK and HTKL mRNA expression were analyzed by reverse transcriptase-polymerase chain reaction (RT-PCR). HTK mRNA was detected in 68/70 cell lines; 58/70 cell lines were positive for HTKL mRNA expression; consequently, co-expression of both receptor and ligand was demonstrated in the majority of cell lines. Collectively, the wide-spread expression suggests a role for this ligand-receptor pair in hematopoietic development and/or function. Investigation of the details of signal transduction pathway that is activated by the HTK tyrosine kinase will help to define the exact biological function of the HTK-HTKL system.[1]

References

  1. Expression of receptor tyrosine kinase HTK (hepatoma transmembrane kinase) and HTK ligand by human leukemia-lymphoma cell lines. Steube, K.G., Meyer, C., Habig, S., Uphoff, C.C., Drexler, H.G. Leuk. Lymphoma (1999) [Pubmed]
 
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