Bernert, B. 2013. Importance of Hyaluronan Metabolism and Signalling in Tumour Progression. Acta Universitatis Upsaliensis. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 855. 59 pp. Uppsala. ISBN 978-91-554-8574-0. Hyaluronan, an unbranched glycosaminoglycan of the extracellular matrix, has an amazingly simple structure. Initially thought to fulfil only h...

BACKGROUND/AIMS Hyaluronan (sodium hyaluronate) has been shown to confer objective and subjective improvement in patients with dry eye syndrome. This study compared the efficacy and safety of a 0.1% solution of hyaluronan with 0.9% saline, when administered topically to the eye, in the treatment of symptoms of severe dry eye syndrome. METHODS A randomised, double blind, crossover clinical tri...

BACKGROUND Hydrocellular foam dressing, modern wound dressing, induces moist wound environment and promotes wound healing: however, the regulatory mechanisms responsible for these effects are poorly understood. This study was aimed to reveal the effect of hydrocellular foam dressing on hyaluronan, which has been shown to have positive effects on wound healing, and examined its regulatory mechan...

Extensive accumulation of the glycosaminoglycan hyaluronan is found in pancreatic cancer. The role of hyaluronan synthases 2 and 3 (HAS2, 3) was investigated in pancreatic cancer growth and the tumor microenvironment. Overexpression of HAS3 increased hyaluronan synthesis in BxPC-3 pancreatic cancer cells. In vivo, overexpression of HAS3 led to faster growing xenograft tumors with abundant extra...

The extracellular matrix is composed of hyaluronan different molecular weights that play roles in cellular proliferation, migration, and differentiation. dysregulated accumulation alters the mechanical biochemical properties it associated with several pathological states. Biomaterials can be engineered using native backbone or chemically modified to target cells via specific receptors, such as ...

BACKGROUND Dimethylnitrosamine (DMN), a potent hepatotoxin, administered to rats, provides a convenient model for toxic liver injury. Indicators of early liver injury are important clinically, for surveillance, for screening new drugs that are potentially hepatotoxic and for identifying drugs that protect against liver injury. Both cirrhosis and wound healing culminate in deposition of fibrous ...

Hyaluronan is a biological polysaccharide that may exist in different degrees of polymerization. Several investigations reported that low molecular mass hyaluronan may have pro-inflammatory activity, while high molecular mass hyaluronan can exert beneficial effects. Starting from these data, the aim of this study was to investigate the effect of hyaluronan of different molecular mass in mouse a...

cAMP is a key messenger of many hormones and neuropeptides, some of which modulate the composition of extracellular matrix. Treatment of human dermal fibroblasts with dibutyryl cyclic AMP and forskolin antagonized the inductive effects of transforming growth factor-beta (TGF-beta) on the expression of collagen, connective tissue growth factor, tissue inhibitor of matrix metalloproteinase-1, and...

In 1988 a novel fermentation route to high molecular weight hyaluronan mediated by Streptococcus zooepidemicus was first reported. few years, following rapidly expanding demand for as key ingredient of facial dermal fillers, streptococcal production commercialized, in Western Europe and North America, subsequently China. Outlining the case microbial hyaluronan, an emergent technology bioeconomy...

Hyaluronan (hyaluronic acid) is a simple, nonantigenic, nonsulfated glycosaminoglycan present everywhere in the extracellular compartments of the body. Noteworthy, it is highly conserved phylogenetically, from sauropsida to mammals; and plays a plethora of roles from embryonic/fetal development to adult physiological and pathological events, including tumor development. In reproduction, hyaluro...