scholarly journals MicroRNA-145 regulates the differentiation of human adipose-derived stem cells to smooth muscle cells via targeting Krüppel-like factor 4

2017 ◽  
Vol 15 (6) ◽  
pp. 3787-3795 ◽  
Author(s):  
Kaisaier Aji ◽  
Yun Zhang ◽  
Abudusaimi Aimaiti ◽  
Yujie Wang ◽  
Mulati Rexiati ◽  
...  
2021 ◽  
Author(s):  
Xuling Lv ◽  
Hao Chen ◽  
Zikai Zhang ◽  
Tian Li ◽  
Qing Wei ◽  
...  

Abstract Background: Pelvic floor dysfunction (PFD) is a spectrum of disorders including stress urinary incontinence and pelvic organ prolapse. Transforming growth factor-β1 (TGF-β1) can induce mesenchymal stem cells (MSCs) to differentiate into smooth muscle cells (SMCs). SMCs derived from adipose-derived stem cells (ADSCs) can be used to repair damaged pelvic floor smooth muscle tissues, which is of great interest for clinical applications using stem cell therapy for PFD. The Wnt/β-catenin pathway acts as a decisive factor in the fate of stem cells.Methods and Results: In this study, we used medium containing TGF-β1, TGF-β1 inhibitor LY2109761, or Wnt/β-catenin inhibitor KYA1797K, to induce ADCSs to differentiate into SMCs in vitro to explore the influence of TGF-β1 on the myogenic differentiation of ADCSs via the Wnt/β-catenin pathway. Results: 1) TGF-β1 induces ADSC-derived SMCs to hyper-express the SMC markers including SMA-α, Desmin, Calponin, and SMMHC ; 2) TGF-β1 activates the Wnt/β-catenin signaling pathway in ADSCs. After blocking TGF-β1, the Wnt/β-catenin pathway and myogenic differentiation in cells were inhibited; 3) the Wnt/β-catenin pathway is involved in the differentiation of ADSCs into SMCs. After differentiation induction, the synchronized changes in the activation of Wnt/β-catenin signaling and the expression of SMC-specific proteins showed a trend of simultaneous changes, and after the inhibition of the Wnt pathway, the adult muscle differentiation was significantly inhibited.Conclusions: We established a simpler and more efficient method for inducing ADSCs to differentiate into SMCs using TGF-β1 and demonstrated that the Wnt/β-catenin signaling pathway is activated during this process.


2019 ◽  
Vol 18 (1) ◽  
pp. e1266
Author(s):  
S. Salemi ◽  
D. Haralampieva-Mohr ◽  
B. Kranzbühler ◽  
A. Mortezavi ◽  
T. Sulser ◽  
...  

Biomedicines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 797
Author(s):  
Alvaro Yogi ◽  
Marina Rukhlova ◽  
Claudie Charlebois ◽  
Ganghong Tian ◽  
Danica B. Stanimirovic ◽  
...  

Synthetic grafts have been developed for vascular bypass surgery, however, the risks of thrombosis and neointimal hyperplasia still limit their use. Tissue engineering with the use of adipose-derived stem cells (ASCs) has shown promise in addressing these limitations. Here we further characterized and optimized the ASC differentiation into smooth muscle cells (VSMCs) induced by TGF-β and BMP-4. TGF-β and BMP-4 induced a time-dependent expression of SMC markers in ASC. Shortening the differentiation period from 7 to 4 days did not impair the functional property of contraction in these cells. Stability of the process was demonstrated by switching cells to regular growth media for up to 14 days. The role of IGFBP7, a downstream effector of TGF-β, was also examined. Finally, topographic and surface patterning of a substrate is recognized as a powerful tool for regulating cell differentiation. Here we provide evidence that a non-woven PET structure does not affect the differentiation of ASC. Taken together, our results indicate that VSMCs differentiated from ASCs are a suitable candidate to populate a PET-based vascular scaffolds. By employing an autologous source of cells we provide a novel alternative to address major issues that reduces long-term patency of currently vascular grafts.


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Bernard Mvula ◽  
Heidi Abrahamse

Stem cells have the ability to self-renew and differentiate into several specialised cells. Low intensity laser irradiation (LILI) has been shown to have positive effects on cells including adipose derived stem cells (ADSCs). Growth factors such as retinoic acid and transforming growth factor (TGF-β1) play significant roles in the differentiation of cells. This study aimed at investigating the role of LILI and growth factors on differentiation of adipose derived stem cells cocultured with smooth muscle cells (SMCs). The study used isolated human adipose derived stem cells and smooth muscle commercial cells (SKUT-1). The cells were cocultured directly in the ratio 1 : 1 using the established methods with and without growth factors (retinoic acid and TGF-β1) and then exposed to LILI at a wavelength of 636 nm with 5 J/cm2using a diode laser. The cellular proliferation and expression of the both cell type markers were assessed using optical density and flow cytometry at 24 h and 72 h. The study showed that LILI increased the proliferation of cocultured cells. The expression of the smooth muscle cell markers increased in the coculture groups that were exposed to LILI in the presence of growth factors while those of the ADSCs decreased.


2013 ◽  
Vol 8 (4) ◽  
pp. 331-336
Author(s):  
Bernard Mvula ◽  
Heidi Abrahamse

AbstractTissue engineering and regenerative medicine has become the treatment of choice for several degenerative diseases. It involves the repairing or replacing of diseased or damaged cells or tissues. Stem cells have a key role to play in this multidisciplinary science because of their capacity to differentiate into several lineages. Adipose derived stem cells (ADSCs) are adult mesenchymal stem cells that are easily harvested and have the capacity to differentiate into cartilage, bone, smooth muscle, fat, liver and nerve cells. ADSCs have been found to differentiate into smooth muscle cells which play major roles in diseases such as asthma, hypertension, cancer and arteriosclerosis. Low Intensity Laser Irradiation (LILI), which involves the application of monochromatic light, has been found to increase viability, proliferation and differentiation in several types of cells including ADSCs. This review discusses the role of ADSCs, smooth muscle cells and LILI in the science of tissue engineering and regenerative medicine.


Sign in / Sign up

Export Citation Format

Share Document