Cell-to-cell contact induces human adipose tissue-derived stromal cells to differentiate into urothelium-like cells in vitro

2009 ◽  
Vol 390 (3) ◽  
pp. 931-936 ◽  
Author(s):  
Jie Liu ◽  
Jian Huang ◽  
Tianxin Lin ◽  
Caixia Zhang ◽  
Xinbao Yin
Keyword(s):  
Adipose Tissue ◽  
Stromal Cells ◽  
Human Adipose Tissue ◽  
Cell Contact

scholarly journals Human Adipose Tissue-Derived Stromal Cells Suppress Human, but Not Murine Lymphocyte Proliferation, via Indoleamine 2,3-Dioxygenase Activity

Cells ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 2419
Author(s):  
Adriana Torres Crigna ◽  
Stefanie Uhlig ◽  
Susanne Elvers-Hornung ◽  
Harald Klüter ◽  
Karen Bieback
Keyword(s):  
Adipose Tissue ◽  
Stromal Cells ◽  
Lymphocyte Proliferation ◽  
Molecular Mechanisms ◽  
Human Adipose Tissue ◽  
Kynurenine Pathway ◽  
Cell Contact ◽  
Indoleamine 2,3 Dioxygenase ◽  
Murine Lymphocyte

Over recent years, mesenchymal stromal cells (MSC) have gained immense attraction in immunotherapy, regenerative medicine and tissue engineering. MSC microenvironment modulation occurs through synergy of direct cell–cell contact, and secreted soluble factors and extracellular vesicles (EV). MSC-derived EV have been suggested as cell-free immunomodulatory alternative to MSC; however, previous findings have challenged this. Furthermore, recent data suggest that evaluating the mechanism of action of human MSC (hMSC) in animal models might promote adverse immune reactions or lack of functionality due to xeno-incompatibilities. In this study, we first assessed the immunomodulatory strength of different human MSC sources on in vitro stimulated T cells and compared this to interferon-gamma (IFNγ) primed MSC conditioned medium (CM) and EV. Second, we addressed the main molecular mechanisms, and third, we assessed the MSC in vitro immunosuppressive effect across interspecies barriers. We identified human adipose tissue-derived stromal cells (ASC) with strongest immunomodulatory strength, followed by bone marrow (BM) and cord blood-derived MSC (CB). Whilst CM from primed ASC managed to exert analogous effects as their cellular counterpart, EV derived thereof did not, reproducing previous findings. IFNγ-induced indoleamine 2,3-dioxygenase (IDO) activity was identified as key mechanism to suppress human lymphocyte proliferation, as in the presence of the IDO inhibitor epacadostat (Epac) a stimulation of proliferation was seen. In addition, we revealed MSC immunosuppressive effects to be species-specific, because human cells failed to suppress murine lymphocyte proliferation. In summary, ASC were the strongest immunomodulators with the IDO-kynurenine pathway being key within the human system. Importantly, the in vitro lack of interspecies immunomodulatory strength suggests that preclinical data need to be carefully interpreted especially when considering a possible translation to clinical field.

In vitro differentiation of neural cells from human adipose tissue derived stromal cells

2018 ◽  
Vol 66 (3) ◽  
pp. 716 ◽  
Author(s):  
ShrutiD Dave ◽  
ChetanN Patel ◽  
ArunaV Vanikar ◽  
HargovindL Trivedi
Keyword(s):  
Adipose Tissue ◽  
Stromal Cells ◽  
Human Adipose Tissue ◽  
Neural Cells ◽  
In Vitro Differentiation

scholarly journals Periostin expression and characters of human adipose tissue-derived mesenchymal stromal cells were aberrantly affected by in vitro cultivation

2019 ◽  
Vol 6 ◽  
pp. 33-33 ◽  
Author(s):  
Heba M. Saad Eldien ◽  
Hekmat Osman Abdel-Aziz ◽  
Douaa Sayed ◽  
Wafaa Mubarak ◽  
Hemmat H. G. Hareedy ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Mesenchymal Stromal Cells ◽  
Stromal Cells ◽  
Human Adipose Tissue ◽  
In Vitro Cultivation

scholarly journals Interaction of allogeneic adipose tissue-derived stromal cells and unstimulated immune cells in vitro: the impact of cell-to-cell contact and hypoxia in the local milieu

2017 ◽  
Vol 70 (1) ◽  
pp. 299-312 ◽  
Author(s):  
Aleksandra N. Gornostaeva ◽  
Elena R. Andreeva ◽  
Polina I. Bobyleva ◽  
Ludmila B. Buravkova
Keyword(s):  
Adipose Tissue ◽  
Immune Cells ◽  
Stromal Cells ◽  
Cell Contact ◽  
The Impact

scholarly journals Adult Stromal Cells Derived from Human Adipose Tissue Provoke Pancreatic Cancer Cell Death both In Vitro and In Vivo

PLoS ONE ◽  
2009 ◽  
Vol 4 (7) ◽  
pp. e6278 ◽  
Author(s):  
Beatrice Cousin ◽  
Emmanuel Ravet ◽  
Sandrine Poglio ◽  
Fabienne De Toni ◽  
Mélanie Bertuzzi ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Cell Death ◽  
Adipose Tissue ◽  
Cancer Cell ◽  
Stromal Cells ◽  
Pancreatic Cancer Cell ◽  
Human Adipose Tissue ◽  
Cancer Cell Death

Cartilaginous Tissue Formation with an Elastic PLCL Scaffold and Human Adipose Tissue-Derived Stromal Cells

2007 ◽  
Vol 342-343 ◽  
pp. 385-388
Author(s):  
So Eun Lee ◽  
Young Mee Jung ◽  
Soo Hyun Kim ◽  
Sang Heon Kim ◽  
Jong Won Rhie ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Adipose Tissue ◽  
Stromal Cells ◽  
Cartilage Tissue Engineering ◽  
Human Adipose Tissue ◽  
Cartilage Tissue ◽  
Tissue Formation ◽  
Cartilaginous Tissue

In cartilage tissue engineering, as a cell source, adult stem cells are very attractive for clinical applications. Recent studies suggest that human adipose tissue-derived stromal cells (ASCs) have multilineage potential similar to bone marrow-derived stromal cells (BMSCs). ASCs are obtained from adipose tissue easily isolated by suction-assisted lipectomy in various body parts. Also, as one of major factors of cartilage tissue engineering, scaffolds have an important role in cartilage formation. Poly(L-lactide-co-ε-carprolactone) scaffolds have physiological activity, biodegradability, high cell affinity, and mechano-activity. The object of this study is cartilaginous tissue formation using highly elastic PLCL scaffolds and ASCs in vitro and in vivo. Poly(L-lactide-co-ε-carprolactone) copolymers were synthesized from lactide and ε-carprolactone in the presence of stannous octoate as catalyst. The scaffolds with 85% porosity and 300-500μm pore size were fabricated by gel-pressing method. ASCs were seeded on scaffolds and cultured for 21days in vitro. Cell/polymer constructs were characterized by reverse transcriptase-polymerase chain reaction for confirming differentiation to chondrocytes onto PLCL scaffolds. Also, for examining cartilaginous tissue formation in vivo, ASCs seeded scaffolds which were induced chondrogenesis for 2 weeks were implanted in nude mice subcutaneously for up to 8weeks. Histological studies showed that implants partially developed cartilaginous tissue within lacunae. And there was an accumulation of sulfated glycoaminoglycans. Immunohistochemical analysis revealed that implants were positively stained for specific extracellular matrix. These results indicate that ASCs and PLCL scaffols could be used to cartilage tissue engineering.

scholarly journals hPER3 promotes adipogenesis via hHSP90AA1-mediated inhibition of Notch1 pathway

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Xinxing Wan ◽  
Liyong Zhu ◽  
Liling Zhao ◽  
Lin Peng ◽  
Jing Xiong ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
White Adipose Tissue ◽  
Stromal Cells ◽  
Critical Role ◽  
Human Adipose Tissue ◽  
Positive Role ◽  
Positive Regulator ◽  
Adipose Derived Stromal Cells

AbstractThe period circadian regulator 3 (PER3) has been reported to play a negative role in human immortalized bone marrow-derived Scp-1 cells (iBMSCs) and patient adipose-derived stromal cells (PASCs) or a negative/positive role in mice adipogenesis. However, human PER3 (hPER3) was identified as a positive regulator of human adipose tissue-derived stromal cells (hADSCs) adipogenesis in this study. Silencing or overexpression of hPER3 in hADSCs inhibited and promoted adipogenesis in vitro. In vivo, the overexpression of hPER3 increased high-fat diet-induced inguinal white adipose tissue (iWAT) and epididymal white adipose tissue (eWAT) forms, increasing systemic glucose intolerance and insulin resistance. Molecularly, hPER3 does not interact with hPPARγ, but represses Notch1 signaling pathway to enhance adipogenesis by interacting with hHSP90AA1, which is able to combine with the promoter of hNotch1 and inactivate its expression. Thus, our study revealed hPER3 as a critical positive regulator of hADSCs adipogenesis, which was different from the other types of cells, providing a critical role of it in treating obesity.

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