Jak2
Mostrando 1-12 de 333 artigos, teses e dissertações.
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1. Screening for myeloid mutations in patients with myelodysplastic syndromes and AML with myelodysplasia-related changes
ABSTRACT Introduction: One of the most critical complications in myelodysplastic syndromes (MDS) is the progression to acute myeloid leukemia (AML). The dynamics of clonal evolution in MDS and how acquired mutations can be used as biomarkers to track disease progression remains under investigation. Objective and method: Herein, we investigated the frequenc
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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2. Clinical and molecular profile of a Brazilian cohort of patients with classical BCR-ABL1-negative myeloproliferative neoplasms
ABSTRACT Background: The classical BCR-ABL1-negative myeloproliferative neoplasms (MPNs) are Polycythemia Vera (PV), Essential Thrombocythemia (ET) and Primary Myelofibrosis (PMF). In developing countries, there are few reports that truly reveal the clinical setting of these patients. Therefore, we aimed to characterize a single center MPN population with a
Hematol., Transfus. Cell Ther.. Publicado em: 2020-09
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3. Modulation of Wnt/β-catenin signaling in IL-17A-mediated macrophage polarization of RAW264.7 cells
Macrophages play pivotal roles in host defense and immune homeostasis, which have two major functional polarization states, the classically activated M1 and the alternatively activated M2. Interleukin (IL)-17A is an immune modulator able to shape macrophage phenotypes. Wnt/β-catenin is a developmental signaling pathway that plays crucial roles in morphogene
Braz J Med Biol Res. Publicado em: 2020-08
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4. Essential thrombocythemia - a predisponent factor for stroke
SUMMARY The essential thrombocythemia is one of the seven described forms of myeloproliferative neoplasms. It is characterized by megakaryocytic hyperplasia with consequent thrombocytosis maintained in the peripheral blood, favoring the occurrence of thrombo-hemorrhagic phenomena. We present the case of an 81-year-old woman with a history of ischemic stroke
Rev. Assoc. Med. Bras.. Publicado em: 22/07/2019
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5. The effect of hirudin on antagonisting thrombin induced apoptosis of human microvascular endothelial cells
Abstract Purpose: To investigate whether hirudin exerts its antithrombin action to decrease the ratio of Human Microvascular Endothelial Cells (HMVECs) apoptosis. Methods: Human microvascular endothelial cells (HMVECs) cultured in the third and fifth generations were used. HMVECs were divided into normal group, thrombin group (T group), natrual hirudin gr
Acta Cir. Bras.. Publicado em: 14/02/2019
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6. Insulin Substrate Receptor (IRS) proteins in normal and malignant hematopoiesis
The insulin receptor substrate (IRS) proteins are a family of cytoplasmic proteins that integrate and coordinate the transmission of signals from the extracellular to the intracellular environment via transmembrane receptors, thus regulating cell growth, metabolism, survival and proliferation. The PI3K/AKT/mTOR and MAPK signaling pathways are the best-charac
Clinics. Publicado em: 11/10/2018
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7. Philadelphia-negative myeloproliferative neoplasms as disorders marked by cytokine modulation
ABSTRACT Background: Cytokines are key immune mediators in physiological and disease processes, whose increased levels have been associated with the physiopathology of hematopoietic malignancies, such as myeloproliferative neoplasms. Methods: This study examined the plasma cytokine profiles of patients with essential thrombocythemia, primary myelofibrosis,
Hematol., Transfus. Cell Ther.. Publicado em: 2018-06
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8. Uso do tofacitinibe na retocolite ulcerativa refratária ao tratamento com anti-TNF e anti-integrina
RESUMO Os inibidores das Janus kinases (JAK) têm sido incorporados ao tratamento de doenças imunomediadas, como artrite reumatoide e, além disso, têm sido testados no tratamento da psoríase e doenças inflamatórias intestinais, tanto na retocolite ulcerativa quanto na doença de Crohn. Tofacitinibe é uma droga do grupo das pequenas moléculas de uso o
Arq. Gastroenterol.. Publicado em: 2018-06
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9. Molecular biology of human epidermal receptors, signaling pathways and targeted therapy against cancers: new evidences and old challenges
ABSTRACT Human epidermal receptors (HER1/2/3/4) belong to the class of receptor-type tyrosine kinases. After binding a ligand, dimerization, it will ocurr activation of intracellular kinases after two-dimensional and cytoplasmic tail reciprocal transphosphorylation. This transphosphorylation recruits signaling pathways such as Ras/Raf/MEK/Erk1-2, PI3-K/AKT a
Braz. J. Pharm. Sci.. Publicado em: 20/07/2017
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10. Aplicação do escore prognóstico IPSET-trombose nos pacientes com trombocitemia essencial em um hospital público brasileiro
Resumo Introdução: em pacientes com trombocitemia essencial (TE), complicações vasculares contribuem para morbidade e mortalidade. Para melhor predizer a ocorrência de eventos trombóticos, um escore prognóstico internacional de trombose para TE (IPSET-trombose) foi recentemente desenvolvido. Apresentamos aqui a aplicação desse escore e comparamos s
Rev. Assoc. Med. Bras.. Publicado em: 2016-10
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11. Reactive oxygen species overload promotes apoptosis in JAK2V617F-positive cell lines
Rev. Bras. Hematol. Hemoter.. Publicado em: 2016-09
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12. l-Amino acid oxidase isolated from Calloselasma rhodostoma snake venom induces cytotoxicity and apoptosis in JAK2V617F-positive cell lines
ABSTRACT BACKGROUND: Myeloproliferative neoplasms are Philadelphia chromosome-negative diseases characterized by hyperproliferation of mature myeloid cells, associated or not with the Janus kinase 2 tyrosine kinase mutation, JAK2V617F. As there is no curative therapy, researchers have been investigating new drugs to treat myeloproliferative neoplasms, incl
Rev. Bras. Hematol. Hemoter.. Publicado em: 2016-06