scholarly journals Regulating cell fate of human amnion epithelial cells using natural compounds: an example of enhanced neural and pigment differentiation by 3,4,5-tri-O-caffeoylquinic acid

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Meriem Bejaoui ◽  
Farhana Ferdousi ◽  
Yun-Wen Zheng ◽  
Tatsuya Oda ◽  
Hiroko Isoda

AbstractOver the past years, Human Amnion Epithelial Cells (hAECs), a placental stem cell, are gaining higher attention from the scientific community as they showed several advantages over other types of stem cells, including availability, easy accessibility, reduced rejection rate, non-tumorigenicity, and minimal legal constraint. Recently, natural compounds are used to stimulate stem cell differentiation and proliferation and to enhance their disease-treating potential. A polyphenolic compound 3,4,5-Tri-O-Caffeoylquinic Acid (TCQA) has been previously reported to induce human neural stem cell differentiation and may affect melanocyte stem cell differentiation as well. In this study, TCQA was tested on 3D cultured hAECs after seven days of treatment, and then, microarray gene expression profiling was conducted of TCQA-treated and untreated control cells on day 0 and day 7. Analyses revealed that TCQA treatment significantly enriched pigment and neural cells sets; besides, genes linked with neurogenesis, oxidation–reduction process, epidermal development, and metabolism were positively regulated. Interestingly, TCQA stimulated cell cycle arrest-related pathways and differentiation signaling. On the other hand, TCQA decreased interleukins and cytokines expression and this due to its anti-inflammatory properties as a polyphenolic compound. Results were validated to highlight the main activities of TCQA on hAECs, including differentiation, cell cycle arrest, and anti-inflammatory. This study highlights the important role of hAECs in regenerative medicine and the use of natural compounds to regulate their fate.

2018 ◽  
Vol 115 (11) ◽  
pp. 2250-2258 ◽  
Author(s):  
Richard Ballweg ◽  
Suengwon Lee ◽  
Xiaonan Han ◽  
Philip K. Maini ◽  
Helen Byrne ◽  
...  

2016 ◽  
Vol 30 (4) ◽  
pp. 421-433 ◽  
Author(s):  
Siim Pauklin ◽  
Pedro Madrigal ◽  
Alessandro Bertero ◽  
Ludovic Vallier

2018 ◽  
Vol 434 (1) ◽  
pp. 84-95 ◽  
Author(s):  
Pooja Flora ◽  
Sean Schowalter ◽  
SiuWah Wong-Deyrup ◽  
Matthew DeGennaro ◽  
Mohamad Ali Nasrallah ◽  
...  

2021 ◽  
Author(s):  
Elliot T Martin ◽  
Patrick Blatt ◽  
Elaine Ngyuen ◽  
Roni Lahr ◽  
Sangeetha Selvam ◽  
...  

Ribosomal defects perturb stem cell differentiation, causing diseases called ribosomopathies. How ribosome levels control stem cell differentiation is not fully known. Here, we discovered three RNA helicases are required for ribosome biogenesis and for Drosophila oogenesis. Loss of these helicases, which we named Aramis, Athos and Porthos, lead to aberrant stabilization of p53, cell cycle arrest and stalled GSC differentiation. Unexpectedly, Aramis is required for efficient translation of a cohort of mRNAs containing a 5′-Terminal-Oligo-Pyrimidine (TOP)-motif, including mRNAs that encode ribosomal proteins and a conserved p53 inhibitor, Novel Nucleolar protein 1 (Non1). The TOP-motif co-regulates the translation of growth-related mRNAs in mammals. As in mammals, the La-related protein co-regulates the translation of TOP-motif containing RNAs during Drosophila oogenesis. Thus, a previously unappreciated TOP-motif in Drosophila responds to reduced ribosome biogenesis to co-regulate the translation of ribosomal proteins and a p53 repressor, thus coupling ribosome biogenesis to GSC differentiation.


2016 ◽  
Vol 7 (10) ◽  
pp. 4432-4441 ◽  
Author(s):  
Daisuke Arai ◽  
Ryousuke Kataoka ◽  
Satoshi Otsuka ◽  
Midori Kawamura ◽  
Hiroko Maruki-Uchida ◽  
...  

Piceatannol (3,3′,4′,5-trans-tetrahydroxystilbene) is a polyphenolic compound abundant in the seeds of passion fruit (Passiflora edulis).


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 4194-4194
Author(s):  
Toska J. Zomorodian ◽  
Mehrdad Abedi ◽  
Gerri Dooner ◽  
Debbie Greer ◽  
Kevin Johnson ◽  
...  

Abstract Hierarchical models of hematopoiesis suppose an ordered system in which stem cells and progenitors with specific fixed differentiation potentials exist. We show that the potential of marrow stem cells to differentiate changes reversibly with cytokine-induced cell cycle transit. To address whether the cell cycle plays a role in the differentiation of stem cells, we co-cultured murine bone marrow Lin- Sca-1+ cells, at different points in their cycle, with the OP9-DL1 system. OP9-DL1 stromal cell layer has been transduced to allow T-cell differentiation in culture. We first induced cell cycle synchrony by exposing the isolated cells to a cytokine cocktail of TPO, Flt-3 and Stem Cell Factor. The cells were exposed to this primary culture for 0, 6, 24, 32 and 40 hours and were subsequently cultured on an OP9-DL1 stromal cell layer grown in 6-well plates. Cells were co-cultured for 8 days and 21 days, in the presence of IL-7 and Flt-3. Cultured cells were evaluated for CD4, CD8, B220, CD19, NK1.1, and Mac-1 surface markers, using flow cytometry. On Day 8, we found a significant hotspot at 32-hours (early-S phase) for B220+ cells (34.3 %), while Mac-1 positive cells demonstrated a 24-hour hotspot (18.1 %). As expected, terminal T and B-cell differentiation (CD 4, CD8, and CD19) was undetectable at 8 days. Three separate short-term (8 day) experiments have confirmed these data. Cells in culture for 21 days similarly show variation in differentiation outcome. CD4 cells demonstrate a peak at the 40 hour time point (mid-S phase) (69.9%), while CD8 positive cells were significantly increased at the 32 hour time point (34.4%). These data indicate both B and T cells show reversible differentiation fluxes linked to cell cycle. This work supports previous evidence that marrow hematopoiesis at the stem cell level is regulated on a continuum and that stem cells have reversible, cycle-related differentiation capacity.


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