scholarly journals Human Decidua Basa lis mesenchymal stem/stromal cells reverse the damaging effects of high level of glucose on endothelial cells in vitro

2020 ◽  
Author(s):  
Yasser S. Basmaeil ◽  
Eman. Bahattab ◽  
Manal A. Alshabibi ◽  
Fawaz M. Abomaray ◽  
Mohamed Abumaree ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Stromal Cells ◽  
High Level ◽  
Human Decidua ◽  
Damaging Effects

scholarly journals Differential expression and regulation of Tdo2 during mouse decidualization

2013 ◽  
Vol 220 (1) ◽  
pp. 73-83 ◽  
Author(s):  
Dang-Dang Li ◽  
Ying-Jie Gao ◽  
Xue-Chao Tian ◽  
Zhan-Qing Yang ◽  
Hang Cao ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Differential Expression ◽  
Stromal Cells ◽  
Real Time Pcr ◽  
Mouse Uterus ◽  
Decidual Cells ◽  
High Level ◽  
Rate Limiting

Tryptophan 2,3-dioxygenase (Tdo2) is a rate-limiting enzyme which directs the conversion of tryptophan to kynurenine. The aim of this study was to examine the expression and regulation of Tdo2 in mouse uterus during decidualization. Tdo2 mRNA was mainly expressed in the decidua on days 6–8 of pregnancy. By real-time PCR, a high level of Tdo2 expression was observed in the uteri from days 6 to 8 of pregnancy, although Tdo2 expression was observed on days 1–8. Simultaneously, Tdo2 mRNA was also detected under in vivo and in vitro artificial decidualization. Estrogen, progesterone, and 8-bromoadenosine-cAMP could induce the expression of Tdo2 in the ovariectomized mouse uterus and uterine stromal cells. Tdo2 could regulate cell proliferation and stimulate the expression of decidual marker Dtprp in the uterine stromal cells and decidual cells. Overexpression of Tdo2 could upregulate the expression of Ahr, Cox2, and Vegf genes in uterine stromal cells, while Tdo2 inhibitor 680C91 could downregulate the expression of Cox2 and Vegf genes in uterine decidual cells. These data indicate that Tdo2 may play an important role during mouse decidualization and be regulated by estrogen, progesterone, and cAMP.

scholarly journals Osteogenic preconditioning in perfusion bioreactors improves vascularization and bone formation by human bone marrow aspirates

2020 ◽  
Vol 6 (7) ◽  
pp. eaay2387 ◽  
Author(s):  
J. N. Harvestine ◽  
T. Gonzalez-Fernandez ◽  
A. Sebastian ◽  
N. R. Hum ◽  
D. C. Genetos ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Extracellular Matrix ◽  
Endothelial Cells ◽  
Stromal Cells ◽  
Bone Marrow Aspirate ◽  
De Novo ◽  
Trophic Factor ◽  
Calvarial Defect ◽  
Factor Secretion

Cell-derived extracellular matrix (ECM) provides a niche to promote osteogenic differentiation, cell adhesion, survival, and trophic factor secretion. To determine whether osteogenic preconditioning would improve the bone-forming potential of unfractionated bone marrow aspirate (BMA), we perfused cells on ECM-coated scaffolds to generate naïve and preconditioned constructs, respectively. The composition of cells selected from BMA was distinct on each scaffold. Naïve constructs exhibited robust proangiogenic potential in vitro, while preconditioned scaffolds contained more mesenchymal stem/stromal cells (MSCs) and endothelial cells (ECs) and exhibited an osteogenic phenotype. Upon implantation into an orthotopic calvarial defect, BMA-derived ECs were present in vessels in preconditioned implants, resulting in robust perfusion and greater vessel density over the first 14 days compared to naïve implants. After 10 weeks, human ECs and differentiated MSCs were detected in de novo tissues derived from naïve and preconditioned scaffolds. These results demonstrate that bioreactor-based preconditioning augments the bone-forming potential of BMA.

scholarly journals Pregnancy success in mice requires appropriate cannabinoid receptor signaling for primary decidua formation

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Yingju Li ◽  
Amanda Dewar ◽  
Yeon Sun Kim ◽  
Sudhansu K Dey ◽  
Xiaofei Sun
Keyword(s):  
Endothelial Cells ◽  
Stromal Cells ◽  
Cannabinoid Receptors ◽  
Cannabinoid Receptor ◽  
Angiogenic Factors ◽  
Permeable Barrier ◽  
Size Dependent ◽  
Decidual Cells ◽  
Avascular Zone

With implantation, mouse stromal cells begin to transform into epithelial-like cells surrounding the implantation chamber forming an avascular zone called the primary decidual zone (PDZ). In the mouse, the PDZ forms a transient, size-dependent permeable barrier to protect the embryo from maternal circulating harmful agents. The process of decidualization is critical for pregnancy maintenance in mice and humans. Mice deficient in cannabinoid receptors, CB1 and CB2, show compromised PDZ with dysregulated angiogenic factors, resulting in the retention of blood vessels and macrophages. This phenotype is replicated in Cnr1-/- but not in Cnr2-/-mice. In vitro decidualization models suggest that Cnr1 levels substantially increase in mouse and human decidualizing stromal cells, and that neutralization of CB1 signaling suppresses decidualization and misregulates angiogenic factors. Taken together, we propose that implantation quality depends on appropriate angiogenic events driven by the integration of CB2 in endothelial cells and CB1 in decidual cells.

scholarly journals Secretion of interleukin-1 by acute myeloblastic leukemia cells in vitro induces endothelial cells to secrete colony stimulating factors

Blood ◽  
1987 ◽  
Vol 70 (4) ◽  
pp. 1218-1221 ◽  
Author(s):  
JD Griffin ◽  
A Rambaldi ◽  
E Vellenga ◽  
DC Young ◽  
D Ostapovicz ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Stromal Cells ◽  
Interleukin 1 ◽  
Constitutive Expression ◽  
Conditioned Media ◽  
Acute Myeloblastic Leukemia ◽  
Gm Csf ◽  
Macrophage Colony Stimulating Factor ◽  
Macrophage Colony

The interaction of acute myeloblastic leukemia (AML) cells with stromal cells was investigated by adding AML-conditioned media to cultures of human endothelial cells. This conditioned media contained factors that induced expression of both the granulocyte macrophage colony- stimulating factor (GM-CSF) and granulocyte CSF (G-CSF) genes and release of colony stimulating activity from endothelial cells. The conditioned media contained interleukin-1 (IL-1) bioactivity and the endothelial cell stimulatory activity was partially neutralized by anti- IL-1 antiserum. Constitutive expression of the IL-1-beta gene was detected in ten of 17 AML cases analyzed. These results suggest that the unregulated secretion of IL-1 by AML cells can induce stromal cells in vitro to overproduce CSFs. This could contribute to the unrestricted growth of AML cells.

scholarly journals In situ Synthesized Monosodium Urate Crystal Enhances Endometrium Decidualization via Sterile Inflammation During Pregnancy

2021 ◽  
Vol 9 ◽  
Author(s):  
Yu-Yuan Zhu ◽  
Yao Wu ◽  
Si-Ting Chen ◽  
Jin-Wen Kang ◽  
Ji-Min Pan ◽  
...  
Keyword(s):  
Stromal Cells ◽  
Early Stage ◽  
Sterile Inflammation ◽  
Monosodium Urate ◽  
Endometrial Stromal Cells ◽  
Elective Abortion ◽  
Urate Crystal ◽  
High Level

High level of uric acid (UA) is the major origin of gout, and is highly associated with various pregnant complications, such as preeclampsia and gestational diabetes. However, UA’s level and role in the very early stage of pregnancy has not been uncovered. This study aims to investigate the relevance of serum UA and decidualization, an essential process for the establishment and maintenance of pregnancy in women and mice during the early stage of pregnancy. In this study, we first proved that expression level of UA synthase xanthine dehydrogenase (XDH) is highly increased along with decidualization of endometrial stromal cells in both in vitro and in vivo models. Furthermore, serum and endometrial levels of UA are higher in mice with decidualized uterin horn and in vitro decidualized stromal cells. The existence of monosodium urate (MSU) crystal was also confirmed by immunostaining. Next, the roles of MSU on decidualization were explored by both in vitro and in vivo models. Our data shows MSU crystal but not UA enhances the decidualization response of endometrial stromal cells, via the upregulation of inflammatory genes such Ptgs2 and Il11. inhibiting of Cox-2 activity abolishes MSU crystal induced higher expression of decidualization marker Prl8a2. At last, in women, we observed enriched expression of XDH in decidua compare to non-decidualized endometrium, the serum level of UA is significantly increased in women in very early stage of pregnancy, and drop down after elective abortion. In summary, we observed an increased serum UA level in the early stage of women’s pregnancy, and proved that the increased level of UA results from the expressed XDH in decidualizing endometrium of both human and mouse, leading to the formation of MSU crystal. MSU crystal can enhance the decidualization response via inflammatory pathways. Our study has uncovered the association between UA, MSU, and decidualization during the early stage of pregnancy.

scholarly journals A Xeno-Free Strategy for Derivation of Human Umbilical Vein Endothelial Cells and Wharton’s Jelly Derived Mesenchymal Stromal Cells: A Feasibility Study toward Personal Cell and Vascular Based Therapy

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Hataiwan Kunkanjanawan ◽  
Tanut Kunkanjanawan ◽  
Veerapol Khemarangsan ◽  
Rungrueang Yodsheewan ◽  
Kasem Theerakittayakorn ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Umbilical Cord ◽  
Mesenchymal Stromal Cells ◽  
Stromal Cells ◽  
Umbilical Vein ◽  
Wharton’S Jelly ◽  
Human Umbilical Vein ◽  
Wharton's Jelly ◽  
Umbilical Vein Endothelial Cells

Coimplantation of endothelial cells (ECs) and mesenchymal stromal cells (MSCs) into the transplantation site could be a feasible option to achieve a sufficient level of graft-host vascularization. To find a suitable source of tissue that provides a large number of high-quality ECs and MSCs suited for future clinical application, we developed a simplified xeno-free strategy for isolation of human umbilical vein endothelial cells (HUVECs) and Wharton’s jelly-derived mesenchymal stromal cells (WJ-MSCs) from the same umbilical cord. We also assessed whether the coculture of HUVECs and WJ-MSCs derived from the same umbilical cord (autogenic cell source) or from different umbilical cords (allogenic cell sources) had an impact on in vitro angiogenic capacity. We found that HUVECs grown in 5 ng/ml epidermal growth factor (EGF) supplemented xeno-free condition showed higher proliferation potential compared to other conditions. HUVECs and WJ-MSCs obtained from this technic show an endothelial lineage (CD31 and von Willebrand factor) and MSC (CD73, CD90, and CD105) immunophenotype characteristic with high purity, respectively. It was also found that only the coculture of HUVEC/WJ-MSC, but not HUVEC or WJ-MSC mono-culture, provides a positive effect on vessel-like structure (VLS) formation, in vitro. Further investigations are needed to clarify the pros and cons of using autogenic or allogenic source of EC/MSC in tissue engineering applications. To the best of our knowledge, this study offers a simple, but reliable, xeno-free strategy to establish ECs and MSCs from the same umbilical cord, a new opportunity to facilitate the development of personal cell-based therapy.

Integrin expression and integrin-mediated adhesion in vitro of human multipotent stromal cells (MSCs) to endothelial cells from various blood vessels

2010 ◽  
Vol 341 (1) ◽  
pp. 147-158 ◽  
Author(s):  
Julie A. Semon ◽  
Lauren H. Nagy ◽  
Claire B. Llamas ◽  
H. Alan Tucker ◽  
Ryang Hwa Lee ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Blood Vessels ◽  
Stromal Cells ◽  
Integrin Expression ◽  
Multipotent Stromal Cells

Stromal cells expressing ephrin-B2 promote the growth and sprouting of ephrin-B2+ endothelial cells

Blood ◽  
2001 ◽  
Vol 98 (4) ◽  
pp. 1028-1037 ◽  
Author(s):  
Xiu-Qin Zhang ◽  
Nobuyuki Takakura ◽  
Yuichi Oike ◽  
Tomohisa Inada ◽  
Nicholas W. Gale ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Stromal Cells ◽  
Network Formation ◽  
Smooth Muscle Actin ◽  
Cell System ◽  
Vascular Network ◽  
Functional Studies ◽  
Vasculogenesis And Angiogenesis ◽  
Arterial Endothelial Cells

Ephrin-B2 is a transmembrane ligand that is specifically expressed on arterial endothelial cells (ECs) and surrounding cells and interacts with multiple EphB class receptors. Conversely, EphB4, a specific receptor for ephrin-B2, is expressed on venous ECs, and both ephrin-B2 and EphB4 play essential roles in vascular development. The bidirectional signals between EphB4 and ephrin-B2 are thought to be specific for the interaction between arteries and veins and to regulate cell mixing and the making of particular boundaries. However, the molecular mechanism during vasculogenesis and angiogenesis remains unclear. Manipulative functional studies were performed on these proteins in an endothelial cell system. Using in vitro stromal cells (OP9 cells) and a paraaortic splanchnopleura (P-Sp) coculture system, these studies found that the stromal cells expressing ephrin-B2 promoted vascular network formation and ephrin-B2+ EC proliferation and that they also induced the recruitment and proliferation of α-smooth muscle actin (α-SMA)–positive cells. Stromal cells expressing EphB4 inhibited vascular network formation, ephrin-B2+ EC proliferation, and α-SMA+ cell recruitment and proliferation. Thus, these data suggest that ephrin-B2 and EphB4 mediate reciprocal interactions between arterial and venous ECs and surrounding cells to form each characteristic vessel.

Adult Human Bone Marrow– and Adipose Tissue–Derived Stromal Cells Support the Formation of Prevascular-like Structures from Endothelial Cells In Vitro

2010 ◽  
Vol 16 (1) ◽  
pp. 101-114 ◽  
Author(s):  
Femke Verseijden ◽  
Sandra J. Posthumus-van Sluijs ◽  
Predrag Pavljasevic ◽  
Stefan O.P. Hofer ◽  
Gerjo J.V.M van Osch ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Endothelial Cells ◽  
Adipose Tissue ◽  
Stromal Cells ◽  
Human Bone ◽  
Human Bone Marrow ◽  
Adult Human
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