Atlas of Genetics and Cytogenetics in Oncology and Haematology


Home   Genes   Leukemias   Solid Tumours   Cancer-Prone   Deep Insight   Case Reports   Journals  Portal   Teaching   

X Y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 NA

t(9;12)(q34;p13)

Clinics and Pathology

Disease described in only 6 cases; acute lymphoblastic leukemia (ALL), acute non lymphocytic leukemia (ANLL) and chronic myeloid leukemia (CML)
Prognosis numbers small, but one CML case had allogeneic BMT and is in complete remission, the remaining cases had rapid disease progression and died of shortly after diagnosis

Cytogenetics

Cytogenetics Morphological t(9;12)(q34;p13), cryptic at the cytogenetic level
Variants t(9;12;14)(q34;p13;q22) and complex insertions of ETV6 into ABL

Genes involved and Proteins

Gene Name ABL
Location 9q34
Dna / Rna ETV6 is fused to exon 2 of ABL in the three cases described
Protein tyrosine kinase, localized primarily to the nucleus
Gene Name ETV6
Location 12p13
Dna / Rna 9 exons; alternate splicing
Protein contains Helix-Loop-Helix (HLH) at N-terminal end and ETS DNA binding domain at C-terminal end; wide expression; nuclear localization; ETS- related transcription factor

Result of the chromosomal anomaly

Hybrid gene
Description 5 ETV6 - 3 ABL; two different fusion breakpoints have been described; ETV6 exon 4 fused in frame to ABL exon 2 (Type A) and ETV6 exon 5 fused in frame to ABL exon 2 (Type B); ETV6 maintains the HLH domain and ABL the tyrosine kinase domain
  
Fusion Protein
Description a 155 kDa protein in Type A, 180 kDa protein in Type B; has elevated tyrosine kinase activity, localized in the cytoplasm and co-localizes with the actin filaments of the cells
Oncogenesis
  • the HLH domain of ETV6 induces oligomerization, which results in the constitutive activation of the kinase domain of ABL; this is thought to result in phosphorylation of JAK2 and activation of the ONCOGENESIS
  • biological activity very similar to BCR-ABL
  •   

    External links

    Other databaset(9;12)(q34;p13) Mitelman database (CGAP - NCBI)
    Other databaset(9;12)(q34;p13) CancerChromosomes (NCBI)

    To be noted

    Additional cases are needed to delineate the epidemiology of this rare entity:
    you are welcome to submit a paper to our new Case Report section.

    Bibliography

    The novel activation of ABL by fusion to an ets-related gene, TEL.
    Papadopoulos P, Ridge SA, Boucher CA, Stocking C, Wiedemann LM
    Cancer research. 1995 ; 55 (1) : 34-38.
    PMID 7805037
     
    Oligomerization of the ABL tyrosine kinase by the Ets protein TEL in human leukemia.
    Golub TR, Goga A, Barker GF, Afar DE, McLaughlin J, Bohlander SK, Rowley JD, Witte ON, Gilliland DG
    Molecular and cellular biology. 1996 ; 16 (8) : 4107-4116.
    PMID 8754809
     
    BCR/ABL-negative chronic myeloid leukemia with ETV6/ABL fusion.
    Andreasson P, Johansson B, Carlsson M, Jarlsfelt I, Fioretos T, Mitelman F, Hglund M
    Genes, chromosomes & cancer. 1997 ; 20 (3) : 299-304.
    PMID 9365838
     
    Haemopoietic transformation by the TEL/ABL oncogene.
    Hannemann JR, McManus DM, Kabarowski JH, Wiedemann LM
    British journal of haematology. 1998 ; 102 (2) : 475-485.
    PMID 9695962
     
    Bcr/Abl activates transcription of the Bcl-X gene through STAT5.
    Gesbert F, Griffin JD
    Blood. 2000 ; 96 (6) : 2269-2276.
    PMID 10979976
     
    Bcr/Abl activates transcription of the Bcl-X gene through STAT5.
    Gesbert F, Griffin JD
    Blood. 2000 ; 96 (6) : 2269-2276.
    PMID 10979976
     
    Molecular cytogenetic and clinical findings in ETV6/ABL1-positive leukemia.
    Van Limbergen H, Beverloo HB, van Drunen E, Janssens A, Hhlen K, Poppe B, Van Roy N, Marynen P, De Paepe A, Slater R, Speleman F
    Genes, chromosomes & cancer. 2001 ; 30 (3) : 274-282.
    PMID 11170285
     

    Contributor(s)

    Written12-2000Nyla A. Heerema

    Citation

    This paper should be referenced as such :
    Heerema NA . t(9;12)(q34;p13). Atlas Genet Cytogenet Oncol Haematol. December 2000 .
    URL : http://AtlasGeneticsOncology.org/Genes/t912ID1080.html

    © Atlas of Genetics and Cytogenetics in Oncology and Haematology
    indexed on : Wed Sep 24 21:07:43 2008


    Home   Genes   Leukemias   Solid Tumours   Cancer-Prone   Deep Insight   Case Reports   Journals  Portal   Teaching   

    For comments and suggestions or contributions, please contact us

    j.l.huret@chu-poitiers.fr.