Cited by 157Erythropoietin and Anemia TreatmentPulmonary Hypertension Research and TreatmentsMyeloproliferative Neoplasms: Diagnosis and Treatment

Autosomal dominant erythrocytosis and pulmonary arterial hypertension associated with an activating HIF2α mutation

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Gale, Daniel P., Harten, Sarah K., Reid, Cecil D. L., Tuddenham, Edward G. D., Maxwell, Patrick H.·2008·Blood

Abstract

investigated for BCR-ABL transcripts with 2 different polymerase chain reaction (PCR) methods as previously described in detail.1,2 Forty-six (1.8%) cases showed an ambiguous result and were not considered for further analysis.Of the remaining 2498 cases, 904 (36.2%) were BCR-ABL ϩ (599 ϭ 24% minor breakpoint region [m-bcr] and 282 ϭ 11.3% major breakpoint region [M-bcr], 15 ϭ 0.6% both, M-bcr and m-bcr, and 8 atypical transcripts), and 1594 were BCR-ABL Ϫ .Atypical transcripts were not systematically detected before 2000 1 and thus had to be excluded from further analysis.We grouped patients into age cohorts at 10-year intervals according to their age at diagnosis, each comprising between 277 and 481 patients and found a remarkable increase of BCR-ABL frequency in adolescents and young adults (Figure 1).It increased from 12.7% in adolescents (15-24 years) to 30.6% and 43.7% in patients aged 25 to 34 and 35 to 44 years, respectively.In patients older than 44 years, the BCR-ABL frequency showed no further increment and ranged between 42% and 44%.The increase of BCR-ABL frequency was paralleled by a relative increase of M-bcr transcripts.These transcripts accounted for 16.4% of all BCR-ABL-positive cases in adolescents (15-24 years).Their relative frequency increased to 22.5% in 25-to 34-year-olds and to 36.8% in 35-to 44-year-olds and remained between 33% and 36.2% from then on.The reason for this age dependency is not obvious.The relative frequencies of immunologic subtypes (78.2% common, 19.9% pre-B, 1.9% pro-B) of BCR-ABL ϩ patients did not differ significantly across the age groups.Moreover, the frequency of BCR-ABL was also not significantly different in woman compared with men.Our study excluded lymphatic blast crises in patients with known chronic myeloid leukemia (CML).Previous work has indicated that M-bcr-and m-bcr-positive ALL may arise from different sets of hematopoietic progenitor cells, 3 but this does not explain the age dependency.A number of genetic markers in ALL show a marked age dependency (reviewed in Armstrong and Look 4 ), eg, TEL-AML1, TLX1, and TLX3, MLL aberrations (especially in infant ALL).Our data provide additional information on the biology of BCR-ABL-positive ALL and substantiate evidence of age-dependent variation in the genetic background of ALL.

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  • Most gain-of-function mutations in HIF-2α are in direct proximity to proline residue 531.

    “Most gain-of-function mutations in HIF-2α are in direct proximity to proline residue 531, which is one of the two main hydroxylation sites (the other major hydroxylation site is proline 405). 147–154”

    From Regulation of erythropoiesis by hypoxia-inducible factors (2013) · cites this paper as [149]

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Research works printed but not linked: 4

  1. Burmeister T, Schwartz S, Taubald A, et al. Atypical BCR-ABL mRNA tran- scripts in adult ALL. Haematologica. 2007;92:1699-1702.
  2. Gleissner B, Go ¨kbuget N, Bartram CR, et al. Leading prognostic relevance of the BCR-ABL translocation in adult acute B-lineage lymphoblastic leukemia: a prospective study of the German Multicenter Trial Group and confirmed poly- merase chain reaction analysis. Blood. 2002;99:1536-1543.
  3. Castor A, Nilsson L, Astrand-Grundstro ¨m I, et al. Distinct patterns of hemato- poietic stem cell involvement in acute lymphoblastic leukemia. Nat Med. 2005; 11:630-637.
  4. Armstrong SA, Look AT. Molecular genetics of acute lymphoblastic leukemia. J Clin Oncol. 2005;23:6306-6315. References

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Authors
Gale, D. P., Harten, S. K., Reid, C. D. L., Tuddenham, E. G. D., & Maxwell, P. H.
Venue
Blood
Published
2008-08-01
Volume
112
Issue
3
Pages
919-921
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2074813003
Cited by
157
References
11
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 13 · 2022: 4 · 2021: 15 · 2020: 6 · 2019: 11 · 2018: 11 · 2017: 10 · 2016: 19 · 2015: 10 · 2014: 9 · 2013: 10 · 2012: 4
FWCI
4.98
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • National Institute for Health and Care Research (NF-SI-0507-10315)
  • British Heart Foundation
Topics
  • Health Sciences › Medicine › Hematology › Erythropoietin and Anemia Treatment
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
  • Health Sciences › Medicine › Genetics › Myeloproliferative Neoplasms: Diagnosis and Treatment
Keywords
pulmonary arterial hypertension, erythropoietin, hypoxia-inducible factor, VHL, erythrocytosis
MeSH terms
Endothelial PAS Domain-Containing Protein 1, Adolescent, Adult, Aged, Humans, Hypertension, Pulmonary, Middle Aged, Mutation, Polycythemia, Basic Helix-Loop-Helix Proteins

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