scholarly journals Comparative Proteomic Profile of the Human Umbilical Cord Blood Exosomes between Normal and Preeclampsia Pregnancies with High-Resolution Mass Spectrometry

2015 ◽  
Vol 36 (6) ◽  
pp. 2299-2306 ◽  
Author(s):  
Ruizhe Jia ◽  
Jingyun Li ◽  
Can Rui ◽  
Hui Ji ◽  
Hongjuan Ding ◽  
...  
Keyword(s):  
High Resolution ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
High Resolution Mass Spectrometry ◽  
Expression Profiles ◽  
Human Umbilical Cord Blood ◽  
Human Umbilical Cord ◽  
Altered Expression ◽  
Extracellular Region

Background/Aims: Exosomes are extracellular vesicles that are involved in several biological processes. The roles of proteins from human umbilical cord blood exosomes in the pathogenesis of preeclampsia remains poorly understood. Methods: In this study, we used high-resolution LC-MS/MS technologies to construct a comparative proteomic profiling of human umbilical cord blood exosomes between normal and preeclamptic pregnancies. Results: A total of 221 proteins were detected in human umbilical cord blood exosomes, with 14 upregulated and 15 downregulated proteins were definitively identified between preeclamptic and control pregnancies. Further bioinformatics analysis (Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis) indicated that these differentially expressed proteins correlate with enzyme regulator activity, binding, extracellular region, cell part, biological regulation, cellular process and complement and coagulation cascades occurring during pathological changes of preeclampsia. Conclusion: Our results show significantly altered expression profiles of proteins in human umbilical cord blood exosomes between normal and preeclampsia pregnancies. These proteins may be involved in the etiology of preeclampsia.

Therapeutic Potential of Endothelial Colony Forming Cells Derived from Human Umbilical Cord Blood

2019 ◽  
Vol 14 (6) ◽  
pp. 460-465 ◽  
Author(s):  
Jing Jia ◽  
Baitao Ma ◽  
Shaoshuai Wang ◽  
Ling Feng
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Tissue Regeneration ◽  
Umbilical Cord Blood ◽  
Therapeutic Potential ◽  
Human Umbilical Cord Blood ◽  
Proliferative Potential ◽  
Human Umbilical Cord ◽  
Preclinical Studies ◽  
Endothelial Colony Forming Cells

Endothelial progenitor cells (EPCs) are implicated in multiple biologic processes such as vascular homeostasis, neovascularization and tissue regeneration, and tumor angiogenesis. A subtype of EPCs is referred to as endothelial colony-forming cells (ECFCs), which display robust clonal proliferative potential and can form durable and functional blood vessels in animal models. In this review, we provide a brief overview of EPCs’ characteristics, classification and origins, a summary of the progress in preclinical studies with regard to the therapeutic potential of human umbilical cord blood derived ECFCs (CB-ECFCs) for ischemia repair, tissue engineering and tumor, and highlight the necessity to select high proliferative CB-ECFCs and to optimize their recovery and expansion conditions.

Hoechst dye efflux reveals a novel CD7+CD34− lymphoid progenitor in human umbilical cord blood

Blood ◽  
2000 ◽  
Vol 96 (6) ◽  
pp. 2125-2133 ◽  
Author(s):  
Robert W. Storms ◽  
Margaret A. Goodell ◽  
Alan Fisher ◽  
Richard C. Mulligan ◽  
Clay Smith
Keyword(s):  
Stem Cells ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Large Population ◽  
Lymphoid Cells ◽  
Human Umbilical Cord Blood ◽  
Human Umbilical Cord ◽  
Hematopoietic Stem ◽  
Cd34 Cells

Abstract A novel Hoechst 33342 dye efflux assay was recently developed that identifies a population of hematopoietic cells termed side population (SP) cells. In the bone marrow of multiple species, including mice and primates, the SP is composed primarily of CD34−cells, yet has many of the functional properties of hematopoietic stem cells (HSCs). This report characterizes SP cells from human umbilical cord blood (UCB). The SP in unfractionated UCB was enriched for CD34+ cells but also contained a large population of CD34− cells, many of which were mature lymphocytes. SP cells isolated from UCB that had been depleted of lineage-committed cells (Lin− UCB) contained CD34+ and CD34− cells in approximately equivalent proportions. Similar to previous descriptions of human HSCs, the CD34+Lin− SP cells were CD38dimHLA-DRdimThy-1dimCD45RA−CD71−and were enriched for myelo-erythroid precursors. In contrast, the CD34−Lin− SP cells were CD38−HLA-DR−Thy-1−CD71−and failed to generate myelo-erythroid progeny in vitro. The majority of these cells were CD7+CD11b+CD45RA+, as might be expected of early lymphoid cells, but did not express other lymphoid markers. The CD7+CD34−Lin− UCB SP cells did not proliferate in simple suspension cultures but did differentiate into natural killer cells when cultured on stroma with various cytokines. In conclusion, the human Lin− UCB SP contains both CD34+ multipotential stem cells and a novel CD7+CD34−Lin− lymphoid progenitor. This observation adds to the growing body of evidence that CD34− progenitors exist in humans.

scholarly journals Endothelial cell precursors are normal components of human umbilical cord blood

1997 ◽  
Vol 98 (3) ◽  
pp. 775-777 ◽  
Author(s):  
Mie Nieda ◽  
Andrew Nicol ◽  
Patricia Denning‐Kendall ◽  
John Sweetenham ◽  
Ben Bradley ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Human Umbilical Cord Blood ◽  
Human Umbilical Cord
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