2019
DOI: 10.3390/cancers11111726
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STAT5A and STAT5B—Twins with Different Personalities in Hematopoiesis and Leukemia

Abstract: The transcription factors STAT5A and STAT5B have essential roles in survival and proliferation of hematopoietic cells—which have been considered largely redundant. Mutations of upstream kinases, copy number gains, or activating mutations in STAT5A, or more frequently in STAT5B, cause altered hematopoiesis and cancer. Interfering with their activity by pharmacological intervention is an up-and-coming therapeutic avenue. Precision medicine requests detailed knowledge of STAT5A’s and STAT5B’s individual functions… Show more

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Cited by 57 publications
(74 citation statements)
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References 201 publications
(284 reference statements)
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“…The activation of STAT5 can be mediated by growth hormone (GH), which has been shown to upregulate melanocyte-inducing transcription factor (MITF) expression and activity via JAK2-STAT5 in melanoma [ 13 ]. STAT5 is also implicated in malignant haematopoiesis, with a detailed review of the contributions of STAT5A and B in this process in this issue [ 14 ]. A new genetically engineered mouse model that allows tissue specific combined deletion of STAT3 and STAT5A/B, is also described, and will be invaluable in the study of the role of these signalling proteins in cancer and other diseases [ 15 ], since, among other roles, both STAT3 and STAT5 regulate metabolism-related genes [ 16 ].…”
mentioning
confidence: 99%
“…The activation of STAT5 can be mediated by growth hormone (GH), which has been shown to upregulate melanocyte-inducing transcription factor (MITF) expression and activity via JAK2-STAT5 in melanoma [ 13 ]. STAT5 is also implicated in malignant haematopoiesis, with a detailed review of the contributions of STAT5A and B in this process in this issue [ 14 ]. A new genetically engineered mouse model that allows tissue specific combined deletion of STAT3 and STAT5A/B, is also described, and will be invaluable in the study of the role of these signalling proteins in cancer and other diseases [ 15 ], since, among other roles, both STAT3 and STAT5 regulate metabolism-related genes [ 16 ].…”
mentioning
confidence: 99%
“…Al igual que ocurre con la vía PI3K-AKT, STAT5 también es de gran importancia para multitud de procesos celulares, como la proliferación, diferenciación, supervivencia y senescencia. Existe una gran variedad de receptores que activan la vía de señalización JAK-STAT5 en respuesta a gran cantidad de citoquinas y factores de crecimiento hematopoyéticos (IL-3, IL-5, IL-2, IL-7, TPO, EPO, SCF, GM- 274,275 . A su vez, STAT5 regula la actividad de multitud de genes implicados en hematopoyesis (Mpl, Spi1, Cited2, Gata1, , Bmi1, Tie2, Cdk4, …) 276 .…”
Section: -C)unclassified
“…En relación con células HSC, la introducción de mutantes de STAT5 activos constitutivamente genera una mayor capacidad de autorrenovación en éstas, tanto in vivo como in vitro, presumiblemente mediante una fuerte reducción de los silvestres 274,275 . En cambio, la eliminación de STAT5 produce la pérdida de la quiescencia y de la expansión de las LT-HSCs 274,277 , y una aparente menor capacidad de competir por el nicho celular en condiciones normales 274 , por lo que la capacidad de repoblación a largo plazo de estas células se encuentra seriamente perjudicada.…”
Section: -C)unclassified
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