Alison R Moliterno

6696549, Feb 24, 2004

Aug 31, 2000

09/652037

Jerry Spivak - Baltimore MD
Alison Moliterno - Baltimore MD

The Johns Hopkins University - Baltimore MD

C07K 1628

53038822, 5303879, 5303881, 530351

Impaired TPO-mediated platelet protein tyrosine phosphorylation was consistently observed in patients with polycythemia vera (PV) as well as those with idiopathic myelofibrosis (IMF), in contrast to patients with essential thrombocytosis, chronic myelogenous leukemia, secondary erythrocytosis, iron deficiency anemia, hemochromatosis or normal volunteers. Moreover, the platelet TPO receptor, Mpl, was not detectable by immunoblotting with an antibody to the extracellular domain, by chemical crosslinking of TPO to the surface of platelets, or by flow cytometry using an antibody to the extracellular domain, in 34 of 34 PV patients and also in 13 of 14 IMF patients. Impaired TPO-induced protein tyrosine phosphorylation in PV and IMF platelets was uniformly associated with markedly reduced or absent expression of the extracellular domain of Mpl. Thus the reduced detectablility of Mpl by these methods can be used a marker of PV and IMF. The abnormality appears to distinguish PV from other forms of erythrocytosis and may be involved in the platelet function defect associated with PV.

60279028, Feb 22, 2000

May 20, 1998

9/081619

Jerry Spivak - Baltimore MD
Alison Moliterno - Baltimore MD

Johns Hopkins University - Baltimore MD

G01N 3353
G01N 33567

435 71

Impaired TPO-mediated platelet protein tyrosine phosphorylation was consistently observed in patients with polycythemia vera (PV) as well as those with idiopathic myelofibrosis (IMF), in contrast to patients with essential thrombocytosis, chronic myelogenous leukemia, secondary erythrocytosis, iron deficiency anemia, hemochromatosis or normal volunteers. Moreover, the platelet TPO receptor, Mpl, was not detectable by immunoblotting with an antibody to the extracellular domain, by chemical crosslinking of TPO to the surface of platelets, or by flow cytometry using an antibody to the extracellular domain, in 34 of 34 PV patients and also in 13 of 14 IMF patients. Impaired TPO-induced protein tyrosine phosphorylation in PV and IMF platelets was uniformly associated with markedly reduced or absent expression of the extracellular domain of Mpl. Thus the reduced detectablility of Mpl by these methods can be used a marker of PV and IMF. The abnormality appears to distinguish PV from other forms of erythrocytosis and may be involved in the platelet function defect associated with PV.

61501204, Nov 21, 2000

May 20, 1998

9/081618

Jerry L Spivak - Baltimore MD
Alison Moliterno - Baltimore MD

The Johns Hopkins University - Baltimore MD

G01N 3353

435 724

Impaired TPO-mediated platelet protein tyrosine phosphorylation was consistently observed in patients with polycythemia vera (PV) as well as those with idiopathic myelofibrosis (IMF), in contrast to patients with essential thrombocytosis, chronic myelogenous leukemia, secondary erythrocytosis, iron deficiency anemia, hemochromatosis or normal volunteers. Moreover, the platelet TPO receptor, Mpl, was not detectable by immunoblotting with an antibody to the extracellular domain, by chemical crosslinking of TPO to the surface of platelets, or by flow cytometry using an antibody to the extracellular domain, in 34 of 34 PV patients and also in 13 of 14 IMF patients. Impaired TPO-induced protein tyrosine phosphorylation in PV and IMF platelets was uniformly associated with markedly reduced or absent expression of the extracellular domain of Mpl. Thus the reduced detectablility of Mpl by these methods can be used a marker of PV and IMF. The abnormality appears to distinguish PV from other forms of erythrocytosis and may be involved in the platelet function defect associated with PV.

20150292028, Oct 15, 2015

Nov 8, 2013

14/441721

- Baltimore MD, US
Michael Ochs - Oreland PA, US
Michael Considine - Belair MD, US
Donna Rowley - Beltsville MD, US
Alison R. Moliterno - Baltimore MD, US

C12Q 1/68
G06F 19/00

The presently disclosed subject matter provides a genetic assay to determine the prognosis in Polycythemia Vera (PV) patients with an indolent form of PV. This assay involves measuring certain messenger RNAs (mRNAs) in blood cells, such as white blood cells. In some embodiments, the cells are CD34+ cells. These mRNA levels are inserted into an algorithm that yields a predictive score of the risk of PV in the patient transforming from an indolent form to an aggressive form.