2006
DOI: 10.1182/blood-2006-04-020305
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Autocrine release of interleukin-9 promotes Jak3-dependent survival of ALK+ anaplastic large-cell lymphoma cells

Abstract: The aberrant fusion protein NPM-ALK plays an important pathogenetic role in ALK ؉ anaplastic large-cell lymphoma (ALCL). We previously demonstrated that Jak3 potentiates the activity of NPM-ALK. Jak3 activation is restricted to interleukins that recruit the common ␥ chain (␥c) receptor, including IL-9. NPM-ALK was previously shown to promote widespread lymphomas in IL-9 transgenic mice by unknown mechanisms. We hypothesized that IL-9 plays an important role in ALK ؉ ALCL via Jak3 activation. Our studies demons… Show more

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Cited by 74 publications
(60 citation statements)
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“…52 In addition, we recently identified the autocrine release of IL-9 by ALK ϩ ALCL cells as an upstream modulator of the Jak3/Stat3 signaling system in these cells. 57 Consistent with the selective inhibition of Jak3, an anti-IL-9 neutralizing antibody was shown to downregulate phosphorylated Jak3 and Stat3 and to decrease NPM-ALK kinase activity. 57 It is possible that the interactions between Jak3 and NPM-ALK are similar to the recently described interactions between Src and each of NPM-ALK and Bcr-Abl.…”
Section: Oncogenic Molecules That Interact With Npm-alk Jak/statmentioning
confidence: 83%
See 1 more Smart Citation
“…52 In addition, we recently identified the autocrine release of IL-9 by ALK ϩ ALCL cells as an upstream modulator of the Jak3/Stat3 signaling system in these cells. 57 Consistent with the selective inhibition of Jak3, an anti-IL-9 neutralizing antibody was shown to downregulate phosphorylated Jak3 and Stat3 and to decrease NPM-ALK kinase activity. 57 It is possible that the interactions between Jak3 and NPM-ALK are similar to the recently described interactions between Src and each of NPM-ALK and Bcr-Abl.…”
Section: Oncogenic Molecules That Interact With Npm-alk Jak/statmentioning
confidence: 83%
“…57 Consistent with the selective inhibition of Jak3, an anti-IL-9 neutralizing antibody was shown to downregulate phosphorylated Jak3 and Stat3 and to decrease NPM-ALK kinase activity. 57 It is possible that the interactions between Jak3 and NPM-ALK are similar to the recently described interactions between Src and each of NPM-ALK and Bcr-Abl. Cussac et al 58 Another mechanism of Stat3 constitutive activation in ALK ϩ ALCL occurs via downregulation of SH2 domain-containing protein tyrosine phosphatase-1 (Shp1), which is a nontransmembrane tyrosine phosphatase predominantly expressed in hematopoietic cells.…”
mentioning
confidence: 83%
“…Finally, treatment with a high-dose of methylprednisolone was demonstrated to reduce serum IL-9 levels and the percentages of CD4 + IL-9 + T cells, indicating that IL-9 and CD4 + IL-9 + T cells are involved in the inflammatory process of SLE. The use of IL-9-specific antibodies in the treatment of several conditions, such as EAE (13), collagen-induced arthritis (14), transplantation (22), chronic active EBV infection (23) and human anaplastic large-cell lymphoma cells (24), has been previously implemented. Targeting IL-9 in human SLE could be a promising approach in the future.…”
Section: Discussionmentioning
confidence: 99%
“…Immunohistochemical staining was performed on formalin-fixed paraffin-embedded sections obtained from cell-blocks of cell lines or the human tumors using a DakoCytomation kit (Carpinteria, CA, USA) as previously described. 22,23,33,34 Additional information on immuno histochemical staining is given in the Online Suppl ementary Methods.…”
Section: Polymerase Chain Reaction Analyses Antigen Density and Westmentioning
confidence: 99%