TY - JOUR
T1 - Role of Tat-interacting protein of 110kDa and microRNAs in the regulation of hematopoiesis
AU - Liu, Ying
AU - He, Johnny J.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - Purpose of review Hematopoiesis is regulated by cellular factors including transcription factors, microRNAs, and epigenetic modifiers. Understanding how these factors regulate hematopoiesis is pivotal for manipulating them to achieve their desired potential. In this review, we will focus on HIV-1 Tat-interacting protein of 110kDa (Tip110) and its regulation of hematopoiesis. Recent findings There are several pathways in hematopoiesis that involve Tip110 regulation. Tip110 is expressed in human cord blood CD34 + cells; its expression decreases when CD34 + cells begin to differentiate. Tip110 is also expressed in mouse marrow hematopoietic stem cells (HSC) and hematopoietic progenitor cells (HPC). Tip110 expression increases the number, survival, and cell cycling of HPC. Tip110-mediated regulation of hematopoiesis has been linked to its reciprocal control of proto-oncogene expression. Small noncoding microRNAs (miRs) have been shown to play important roles in regulation of hematopoiesis. miR-124 specifically targets 3′-untranslated region of Tip110 and subsequently regulates Tip110 expression in HSC. Summary Our recent findings for manipulating expression levels of Tip110 in HSC and HPC could be useful for expanding HSC and HPC and for improving engraftment of cord blood HSC/HPC.
AB - Purpose of review Hematopoiesis is regulated by cellular factors including transcription factors, microRNAs, and epigenetic modifiers. Understanding how these factors regulate hematopoiesis is pivotal for manipulating them to achieve their desired potential. In this review, we will focus on HIV-1 Tat-interacting protein of 110kDa (Tip110) and its regulation of hematopoiesis. Recent findings There are several pathways in hematopoiesis that involve Tip110 regulation. Tip110 is expressed in human cord blood CD34 + cells; its expression decreases when CD34 + cells begin to differentiate. Tip110 is also expressed in mouse marrow hematopoietic stem cells (HSC) and hematopoietic progenitor cells (HPC). Tip110 expression increases the number, survival, and cell cycling of HPC. Tip110-mediated regulation of hematopoiesis has been linked to its reciprocal control of proto-oncogene expression. Small noncoding microRNAs (miRs) have been shown to play important roles in regulation of hematopoiesis. miR-124 specifically targets 3′-untranslated region of Tip110 and subsequently regulates Tip110 expression in HSC. Summary Our recent findings for manipulating expression levels of Tip110 in HSC and HPC could be useful for expanding HSC and HPC and for improving engraftment of cord blood HSC/HPC.
KW - 3′-untranslated region
KW - Tat-interacting protein of 110kDa
KW - hematopoietic stem cells
KW - microRNA-124
UR - http://www.scopus.com/inward/record.url?scp=84963638722&partnerID=8YFLogxK
U2 - 10.1097/MOH.0000000000000246
DO - 10.1097/MOH.0000000000000246
M3 - Review article
C2 - 27071021
AN - SCOPUS:84963638722
SN - 1065-6251
VL - 23
SP - 325
EP - 330
JO - Current Opinion in Hematology
JF - Current Opinion in Hematology
IS - 4
ER -