Contact Lens Wear Induces Alterations of Lactoferrin Functionality in Human Tears
The tear film is a complex matrix composed of several molecular classes, from small metal ions to macromolecules. Contact lens (CL) wear can affect the protein homeostasis of the tear film, by accumulating deposits on the CL surface and/or altering their structural and functional properties. This work investigates the effect of CL wear on lactoferrin (Lf), one of the most abundant tear proteins, known as an unspecific biomarker of inflammation. Tears from eight volunteers were collected and analyzed after alternated periods of CL wear and without CL. The experimental approach is to probe Lf into unprocessed human tears by the peculiar fluorescence emission originating from complex formation of Lf with terbium (Tb3+) at the iron-binding sites. The experimental data indicate that CL wear does not significantly affect the total amount of Lf. On the other hand, Lf affinity for Tb3+ is reduced upon CL wear, suggesting relevant changes in Lf structure and possible alterations of protein functionality. Future studies based on this approach will help define CL features (material, lens-care solution, wearing time, etc.) with minimal effects on tear protein activity, in order to obtain more biocompatible and comfortable devices.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
|---|---|
| Enthalten in: |
Pharmaceutics - 14(2022), 10 vom: 14. Okt. |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Ponzini, Erika [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Journal Article |
|---|
| Anmerkungen: |
Date Revised 30.10.2022 published: Electronic Citation Status PubMed-not-MEDLINE |
|---|
| doi: |
10.3390/pharmaceutics14102188 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM348120311 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM348120311 | ||
| 003 | DE-627 | ||
| 005 | 20231226035434.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.3390/pharmaceutics14102188 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1160.xml |
| 035 | |a (DE-627)NLM348120311 | ||
| 035 | |a (NLM)36297623 | ||
| 035 | |a (PII)2188 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Ponzini, Erika |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Contact Lens Wear Induces Alterations of Lactoferrin Functionality in Human Tears |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 30.10.2022 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a The tear film is a complex matrix composed of several molecular classes, from small metal ions to macromolecules. Contact lens (CL) wear can affect the protein homeostasis of the tear film, by accumulating deposits on the CL surface and/or altering their structural and functional properties. This work investigates the effect of CL wear on lactoferrin (Lf), one of the most abundant tear proteins, known as an unspecific biomarker of inflammation. Tears from eight volunteers were collected and analyzed after alternated periods of CL wear and without CL. The experimental approach is to probe Lf into unprocessed human tears by the peculiar fluorescence emission originating from complex formation of Lf with terbium (Tb3+) at the iron-binding sites. The experimental data indicate that CL wear does not significantly affect the total amount of Lf. On the other hand, Lf affinity for Tb3+ is reduced upon CL wear, suggesting relevant changes in Lf structure and possible alterations of protein functionality. Future studies based on this approach will help define CL features (material, lens-care solution, wearing time, etc.) with minimal effects on tear protein activity, in order to obtain more biocompatible and comfortable devices | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a lactoferrin unfolding | |
| 650 | 4 | |a protein-metal ion binding analysis | |
| 650 | 4 | |a soft contact lenses | |
| 650 | 4 | |a terbium fluorescence | |
| 650 | 4 | |a unprocessed tears analysis | |
| 700 | 1 | |a Tavazzi, Silvia |e verfasserin |4 aut | |
| 700 | 1 | |a Musile, Giacomo |e verfasserin |4 aut | |
| 700 | 1 | |a Tagliaro, Franco |e verfasserin |4 aut | |
| 700 | 1 | |a Grandori, Rita |e verfasserin |4 aut | |
| 700 | 1 | |a Santambrogio, Carlo |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Pharmaceutics |d 2010 |g 14(2022), 10 vom: 14. Okt. |w (DE-627)NLM204303303 |x 1999-4923 |7 nnns |
| 773 | 1 | 8 | |g volume:14 |g year:2022 |g number:10 |g day:14 |g month:10 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.3390/pharmaceutics14102188 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 14 |j 2022 |e 10 |b 14 |c 10 | ||