scholarly journals Mesenchymal Stem/Stromal Cells seeded on cartilaginous endplates promote Intervertebral Disc Regeneration through Extracellular Matrix Remodeling

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Catarina Leite Pereira ◽  
Graciosa Q. Teixeira ◽  
Cláudia Ribeiro-Machado ◽  
Joana Caldeira ◽  
Madalena Costa ◽  
...  
2019 ◽  
Vol 20 (7) ◽  
pp. 1716 ◽  
Author(s):  
Gauri Tendulkar ◽  
Sabrina Ehnert ◽  
Vrinda Sreekumar ◽  
Tao Chen ◽  
Hans-Peter Kaps ◽  
...  

Musculoskeletal disorders, such as osteoarthritis and intervertebral disc degeneration are causes of morbidity, which concomitantly burdens the health and social care systems worldwide, with massive costs. Link N peptide has recently been described as a novel anabolic stimulator for intervertebral disc repair. In this study, we analyzed the influence on anabolic response, by delivering synthetic Link N encoding mRNA into primary human chondrocytes and mesenchymal stromal cells (SCP1 cells), Furthermore, both cell types were seeded on knitted titanium scaffolds, and the influence of Link N peptide mRNA for possible tissue engineering applications was investigated. Synthetic modified Link N mRNA was efficiently delivered into both cell types and cell transfection resulted in an enhanced expression of aggrecan, Sox 9, and type II collagen with a decreased expression of type X collagen. Interestingly, despite increased expression of BMP2 and BMP7, BMP signaling was repressed and TGFβ signaling was boosted by Link N transfection in mesenchymal stromal cells, suggesting possible regulatory mechanisms. Thus, the exogenous delivery of Link N peptide mRNA into cells augmented an anabolic response and thereby increased extracellular matrix synthesis. Considering these findings, we suppose that the cultivation of cells on knitted titanium scaffolds and the exogenous delivery of Link N peptide mRNA into cells could mechanically support the stability of tissue-engineered constructs and improve the synthesis of extracellular matrix by seeded cells. This method can provide a potent strategy for articular cartilage and intervertebral disc regeneration.


2020 ◽  
Vol 13 ◽  
Author(s):  
Fedor Zhuravlev

The tumor microenvironment is a dynamic ecosystem where malignant cells interact with the stromal cells sustaining and promoting tumor growth and metastasis. Cancer-associated fibroblasts (CAFs) are the major component of tumor stroma. CAFs control key tumorigenic activities by participating in immune evasion and suppression, extracellular matrix remodeling, neo-angiogenesis, and drug resistance. Therefore, targeting CAFs emerges as an attractive anti-cancer strategy. This review summarized recent advancements in targeting CAFs with diagnostic and therapeutic radiopharmaceuticals using clinically-promising biomarkers. The efforts to improve clinical outcomes via application of new radiotheranostic compounds are discussed in the context of radionuclide, the pharmacophore, and, more generally, in terms of biomarker specificity and expression across different cancers and CAF phenotypes.


FEBS Journal ◽  
2016 ◽  
Vol 283 (9) ◽  
pp. 1689-1700 ◽  
Author(s):  
Jun Xu ◽  
Xiao‐Qiang E ◽  
Nan‐Xiang Wang ◽  
Mo‐Nan Wang ◽  
Huan‐Xin Xie ◽  
...  

Clinics ◽  
2011 ◽  
Vol 66 (5) ◽  
pp. 903-909 ◽  
Author(s):  
Luciano Miller Reis Rodrigues ◽  
Thérèse Rachell Theodoro ◽  
Leandro Luongo Matos ◽  
Ana Maria Mader ◽  
Carlo Milani ◽  
...  

2015 ◽  
Vol 117 (3) ◽  
pp. 684-693 ◽  
Author(s):  
Emmanuel C. Ekwueme ◽  
Jay V. Shah ◽  
Mahir Mohiuddin ◽  
Corina A. Ghebes ◽  
João F. Crispim ◽  
...  

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