Hyaluronic acid drives mesenchymal stromal cell-derived extracellular matrix assembly by promoting fibronectin fibrillogenesis

Author(s):  
Marisa Assunção ◽  
Chi Him Kendrick Yiu ◽  
Ho-Ying Wan ◽  
Dan Wang ◽  
Dai Fei Elmer Ker ◽  
...  

Hyaluronic acid (HA) is present at sites of ongoing fibronectin fibrillogenesis (fibrillar adhesions) and necessary for efficient fibronectin fibrillogenesis. As a result, fibronectin deposition can be enhanced by exogenous HA.

Cytotherapy ◽  
2015 ◽  
Vol 17 (7) ◽  
pp. 860-873 ◽  
Author(s):  
Mizuho Kittaka ◽  
Mikihito Kajiya ◽  
Hideki Shiba ◽  
Manabu Takewaki ◽  
Kei Takeshita ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0147600 ◽  
Author(s):  
Abigail Hielscher ◽  
Kim Ellis ◽  
Connie Qiu ◽  
Josh Porterfield ◽  
Sharon Gerecht

2006 ◽  
Vol 26 (7) ◽  
pp. 2519-2530 ◽  
Author(s):  
Nan Tang ◽  
Fiona Mack ◽  
Volker H. Haase ◽  
M. Celeste Simon ◽  
Randall S. Johnson

ABSTRACT The tumor suppressor von Hippel-Lindau protein (pVHL) is critical for cellular molecular oxygen sensing, acting to target degradation of the hypoxia-inducible factor alpha transcription factor subunits under normoxic conditions. We have found that independent of its function in regulating hypoxic response, the VHL gene plays a critical role in embryonic endothelium development through regulation of vascular extracellular matrix assembly. We created mice lacking the VHL gene in endothelial cells; these conditional null mice died at the same stage as homozygous VHL-null mice, with similar vascular developmental defects. These included defective vasculogenesis in the placental labyrinth, a collapsed endocardium, and impaired vessel network patterning. The defects in embryonic vascularization were correlated with a diminished vascular fibronectin deposition in vivo and defective endothelial extracellular fibronectin assembly in vitro. We found that the impaired migration and adhesion of VHL-null endothelial cells can be partially rescued by the addition of back exogenous fibronectin, which indicates that pVHL regulation of fibronectin deposition plays an important functional role in vascular patterning and maintenance of vascular integrity.


2018 ◽  
Vol 70 ◽  
pp. 71-83 ◽  
Author(s):  
Maria Chiara Ciuffreda ◽  
Giuseppe Malpasso ◽  
Cindy Chokoza ◽  
Deon Bezuidenhout ◽  
Kyle P. Goetsch ◽  
...  

1995 ◽  
Vol 108 (6) ◽  
pp. 2511-2523 ◽  
Author(s):  
C. Wu ◽  
A.E. Chung ◽  
J.A. McDonald

To study the biological role of alpha 3 beta 1 integrins in cell adhesion, migration, and in the deposition of extracellular matrix, we stably expressed the human alpha 3 integrin subunit in the alpha 4, alpha 5 integrin deficient CHO cell line B2. The expression of alpha 3 beta 1 integrins enhanced cell adhesion on entactin (also known as nidogen), but not on fibronectin. Using recombinant GST-fusion proteins that span the entire length of the entactin molecule, we located cell adhesive activity to the G2 domain of entactin. These results suggest that the alpha 3 beta 1 integrin functions as an adhesion receptor interacting with the G2 domain of entactin. On the other hand, the expression of alpha 3 beta 1 integrins did not confer the ability to migrate on entactin. Strikingly, the expression of alpha 3 beta 1 dramatically increased the deposition of entactin and fibronectin into the pericellular matrix. This was accompanied by increased binding activity of the 29 kDa amino-terminal domain of fibronectin. Thus, similar to alpha 5 beta 1 integrins, alpha 3 beta 1 integrins can play an important role in modulating the assembly of pericellular matrices. However, unlike fibronectin deposition supported by alpha 5 beta 1, alpha 3 beta 1 supported fibronectin deposition into pericellular matrix was not inhibited by antibodies binding to the RGD containing cell adhesion domain of fibronectin, demonstrating that the two processes are mechanistically distinct. The role of alpha 3 beta 1 in pericellular matrix assembly potentially implicates this receptor in the assembly and/or recognition of entactin-containing pericellular matrices, an observation consistent with its apparent role in the renal glomerulus of the mammalian kidney.


Author(s):  
Ekaterina Novoseletskaya ◽  
Olga Grigorieva ◽  
Peter Nimiritsky ◽  
Nataliya Basalova ◽  
Roman Eremichev ◽  
...  

2013 ◽  
Vol 5 (2) ◽  
pp. 025003 ◽  
Author(s):  
Shraddha Thakkar ◽  
Corina A Ghebes ◽  
Maqsood Ahmed ◽  
Cindy Kelder ◽  
Clemens A van Blitterswijk ◽  
...  

2020 ◽  
Author(s):  
Mary Mohrin ◽  
Justin Liu ◽  
Jose Zavala-Solorio ◽  
Sakshi Bhargava ◽  
John Maxwell Trumble ◽  
...  

AbstractReducing insulin-like growth factor (IGF) signaling is one of the best conserved and characterized mechanisms to extend longevity. Pregnancy associated plasma protein A (PAPP-A) is a secreted metalloprotease that increases IGF availability by cleaving IGF binding proteins. PAPP-A inhibition reduces local IGF signaling, limits the progression of multiple age-related diseases, and extends lifespan, but the mechanisms behind these pleiotropic effects remains unknown. Here, we developed and utilized a PAPP-A neutralizing antibody to discover that adulthood inhibition of this protease reduced collagen and extracellular matrix (ECM) gene expression in multiple tissues in mice. Using bone marrow to explore this effect, we identified mesenchymal stromal cells (MSCs) as the source of PAPP-A and primary responders to PAPP-A inhibition. Short-term treatment with anti-PAPP-A reduced IGF signaling in MSCs, altered MSC expression of collagen/ECM, and decreased MSC number. This affected MSC-dependent functions, decreasing myelopoiesis and osteogenesis. Our data demonstrate that PAPP-A inhibition reduces the activity and number of IGF-dependent mesenchymal progenitor cells and their differentiated progeny, and that this reduction leads to functional changes at the tissue level. MSC-like cells are present in virtually all tissues, and aberrant collagen and ECM production from mesenchymal cells drives aspects of aging and age-related diseases, thus this may be a mechanism by which PAPP-A deficiency enhances lifespan and healthspan.SummaryInhibition of PAPP-A, a regulator of IGF signaling, decreases multi-tissue collagen and extracellular matrix gene expression and modulates mesenchymal stromal cell activity in murine bone marrow.


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