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Cited by 309

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

FIP1L1-PDGFRA fusion: prevalence and clinicopathologic correlates in 89 consecutive patients with moderate to severe eosinophilia

Open access
Pardanani, Animesh, Brockman, Stephanie R., Paternoster, Sarah F., Flynn, Heather C., Ketterling, Rhett P., Lasho, Terra L., Ho, Ching-Liang, Li, Chin-Yang, Dewald, Gordon W., Tefferi, Ayalew·2004·Blood

Abstract

A novel oncogenic mutation (FIP1L1-PDGFRA), which results in a constitutively activated platelet-derived growth factor receptor-α (PDGFRA), has been invariably associated with a primary eosinophilic disorder. The current study examines both the prevalence and the associated clinicopathologic features of this mutation in a cohort of 89 adult patients presenting with an absolute eosinophil count (AEC) of higher than 1.5 × 109/L. A fluorescence in situ hybridization (FISH)–based strategy was used to detect FIP1L1-PDGFRA in bone marrow cells. None of 8 patients with reactive eosinophilia displayed the abnormality, whereas the incidence of FIP1L1-PDGFRA in the remaining 81 patients with primary eosinophilia was 14% (11 patients). None (0%) of 57 patients with the hypereosinophilic syndrome (HES) but 10 (56%) of 19 patients with systemic mast cell disease associated with eosinophilia (SMCD-eos) carried the specific mutation. The bone marrow mast cell infiltration pattern in FIP1L1-PDGFRA+ SMCD-eos was distinctly diffuse with loose tumoral aggregates. Treatment with low-dose imatinib (100 mg/d) produced complete and durable responses in all 8 FIP1L1-PDGFRA+ cases treated. In contrast, only 40% partial response rate was seen in 10 HES cases. FIP1L1-PDGFRA is a relatively infrequent but treatment-relevant mutation in primary eosinophilia that is indicative of an underlying systemic mastocytosis.

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Metadata

Authors
Pardanani, A., Brockman, S. R., Paternoster, S. F., Flynn, H. C., Ketterling, R. P., Lasho, T. L., Ho, C.-L., Li, C.-Y., Dewald, G. W., & Tefferi, A.
Venue
Blood
Published
2004-11-15
Volume
104
Issue
10
Pages
3038-3045
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2078398386
Cited by
309
References
10
FWCI
18.21
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: FIP1L1-PDGFRA fusion: prevalence and clinicopathologic correlates in 89 consecutive patients with moderate to severe eosinophilia. https://app.cochat.ai/papers/10.1182/blood-2004-03-0787
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Pardanani, A., Brockman, S. R., Paternoster, S. F., Flynn, H. C., Ketterling, R. P., Lasho, T. L., Ho, C.-L., Li, C.-Y., Dewald, G. W., & Tefferi, A. (2004). FIP1L1-PDGFRA fusion: prevalence and clinicopathologic correlates in 89 consecutive patients with moderate to severe eosinophilia. Blood. https://doi.org/10.1182/blood-2004-03-0787

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