chiara Schiraldi

Prof. chiara Schiraldi

University of Campania "Luigi Vanvitelli" Department of Experimental Medicine
orcid

Research Focus & Metrics

Academic Career Length

28Years (1999-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2002 in Trends in Biotechnology
Verified
Journal Article
Closed access
chiara Schiraldichiara Schiraldi
chiara Schiraldi
ILIsabella Di Lernia
Isabella Di Lernia
MRMario De Rosa
Mario De Rosa

1 December 2002 in Trends in Biotechnology
Verified
Journal Article
Closed access
chiara Schiraldichiara Schiraldi
chiara Schiraldi
MRMario De Rosa
Mario De Rosa

3 June 2010 in Applied Microbiology and Biotechnology
Verified
Journal Article
Closed access
PDF file
chiara Schiraldichiara Schiraldi
chiara Schiraldi
DCDonatella Cimini
Donatella Cimini
MRMario De Rosa
Mario De Rosa

11 July 2015 in BMC Cell Biology
Verified
Journal Article
Open access
PDF file
ADAntonella D’aGostino
Antonella D’aGostino
ASAntonietta Stellavato
Antonietta Stellavato
TBTeresa Busico
Teresa Busico
APAgata Papa
Agata Papa
VTVirginia Tirino
Virginia Tirino
chiara Schiraldichiara Schiraldi
chiara Schiraldi
Recent studies have reported the roles of Hyaluronic acid (HA) chains of diverse length in wound repair, especially considering the simultaneous occurrence in vivo of both high- (H-HA) and low-molecular weight (L-HA) hyaluronan at an injury site. It has been shown that HA fragments (5 ≤ MW ≤ 20 kDa) usually trigger an inflammatory response that, on one hand, is the first signal in the activation of a repair mechanism but on the other, when it’s overexpressed, it may promote unwanted side effects. The present experimental research has aimed to investigate H-HA, L-HA and of a newly developed complex of the two (H-HA/L-HA) for stability (e.g. hyaluronidases digestion), for their ability to promote wound healing of human keratinocytes in vitro and for their effect on cellular biomarker expression trends.

1 February 2017 in Carbohydrate Polymers
Verified
Journal Article
Closed access
ADAntonella D’aGostino
Antonella D’aGostino
ASAntonietta Stellavato
Antonietta Stellavato
LCLuisana Corsuto
Luisana Corsuto
PDPaola Diana
Paola Diana
RFRosanna Filosa
Rosanna Filosa
chiara Schiraldichiara Schiraldi
chiara Schiraldi

1 November 2016 in Carbohydrate Polymers
Verified
Journal Article
Open access
RSRosanna Salzillo
Rosanna Salzillo
chiara Schiraldichiara Schiraldi
chiara Schiraldi
LCLuisana Corsuto
Luisana Corsuto
ADAntonella D’aGostino
Antonella D’aGostino
RFRosanna Filosa
Rosanna Filosa
AGAnnalisa La Gatta
Annalisa La Gatta
Hyaluronan (HA) is frequently incorporated in eye drops to extend the pre-corneal residence time, due to its viscosifying and mucoadhesive properties. Hydrodynamic and rheological evaluations of commercial products are first accomplished revealing molecular weights varying from about 360 to about 1200kDa and viscosity values in the range 3.7-24.2mPa s. The latter suggest that most products could be optimized towards resistance to drainage from the ocular surface. Then, a study aiming to maximize the viscosity and mucoadhesiveness of HA-based preparations is performed. The effect of polymer chain length and concentration is investigated. For the whole range of molecular weights encountered in commercial products, the concentration maximizing performance is identified. Such concentration varies from 0.3 (wt%) for a 1100kDa HA up to 1.0 (wt%) for a 250kDa HA, which is 3-fold higher than the highest concentration on the market. The viscosity and mucoadhesion profiles of optimized formulations are superior than commercial products, especially under conditions simulating in vivo blinking. Thus longer retention on the corneal epithelium can be predicted. An enhanced capacity to protect corneal porcine epithelial cells from dehydration is also demonstrated in vitro. Overall, the results predict formulations with improved efficacy.