Table 3.

JAK2 and MPL mutations in myelodysplastic syndromes and mixed myelodysplastic/myeloproliferative neoplasms.

AuthorsProportion of cases that were found to be positive forJAK2(V617F)MPLmutations
Abbreviations: CMML, chronic myelomonocytic leukemia; ET, essential thrombocythemia; MDS/MPD, U, myelodysplastic/myeloproliferative disease, unclassifiable; RARS-T, refractory anemia with ringed sideroblasts associated with marked thrombocytosis 
Szpurka et al29  6/9 RARS-T
 3/26 MDS/MPD, U
 2/22 CMML Not studied 
Remacha et al30  6/9 RARS-T Not studied 
Wang et al31  6/12 RARS-T with plt count ≥ 600 × 109/L
 0/19 RARS-T with plt count < 600 × 109/L
 0/11 MDS/MPD, U Not studied 
Boissinot et al32  5/16 RARS-T
 (5/8 RARS-T with ET features) Not studied 
Ceesay et al33  4/6 RARS-T Not studied 
Renneville et al34  5/7 RARS-T Not studied 
 2/15 CMML  
Gattermann et al35  9/10 RARS-T Not studied 
Schnittger et al36   MPL (W515) mutation in a case with features of both ET and RARS-T 
Schmitt-Graeff et al37  11/23 RARS-T MPL (W515) mutation in 1 JAK2 (V617F)-negative patient with RARS-T 
Raya et al38  14/23 (61%) RARS-T with plt count ≥ 600 × 109/L 
 3/24 RARS-T with plt count 400–600 × 109/L
 (all had plt count > 500 × 109/L Not studied 
Ingram et al39  6/97 MDS with del(5q) Not studied 
AuthorsProportion of cases that were found to be positive forJAK2(V617F)MPLmutations
Abbreviations: CMML, chronic myelomonocytic leukemia; ET, essential thrombocythemia; MDS/MPD, U, myelodysplastic/myeloproliferative disease, unclassifiable; RARS-T, refractory anemia with ringed sideroblasts associated with marked thrombocytosis 
Szpurka et al29  6/9 RARS-T
 3/26 MDS/MPD, U
 2/22 CMML Not studied 
Remacha et al30  6/9 RARS-T Not studied 
Wang et al31  6/12 RARS-T with plt count ≥ 600 × 109/L
 0/19 RARS-T with plt count < 600 × 109/L
 0/11 MDS/MPD, U Not studied 
Boissinot et al32  5/16 RARS-T
 (5/8 RARS-T with ET features) Not studied 
Ceesay et al33  4/6 RARS-T Not studied 
Renneville et al34  5/7 RARS-T Not studied 
 2/15 CMML  
Gattermann et al35  9/10 RARS-T Not studied 
Schnittger et al36   MPL (W515) mutation in a case with features of both ET and RARS-T 
Schmitt-Graeff et al37  11/23 RARS-T MPL (W515) mutation in 1 JAK2 (V617F)-negative patient with RARS-T 
Raya et al38  14/23 (61%) RARS-T with plt count ≥ 600 × 109/L 
 3/24 RARS-T with plt count 400–600 × 109/L
 (all had plt count > 500 × 109/L Not studied 
Ingram et al39  6/97 MDS with del(5q) Not studied 

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