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Assessment of Oligo-Chitosan Biocompatibility toward Human Spermatozoa
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Glycoscience.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Glycoscience.
Univ Lyon, Univ Claude Bernard Lyon 1, CNRS UMR 5223, IMP, F-69622 Villeurbanne, France..
Karolinska Univ Hosp, Transmed, ANOVA Androl, Sexual Med, Norra Stationsgatan 69, S-11364 Stockholm, Sweden.;Karolinska Inst, Norra Stationsgatan 69, S-11364 Stockholm, Sweden..
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2019 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 11, no 50, p. 46572-46584Article in journal (Refereed) Published
Abstract [en]

The many interesting properties of chitosan polysaccharides have prompted their extensive use as biomaterial building blocks, for instance as antimicrobial coatings, tissue engineering scaffolds, and drug delivery vehicles. The translation of these chitosan-based systems to the clinic still requires a deeper understanding of their safety profiles. For instance, the widespread claim that chitosans are spermicidal is supported by little to no data. Herein, we thoroughly investigate whether chitosan oligomer (CO) molecules can impact the functional and structural features of human spermatozoa. By using a large number of primary sperm cell samples and by isolating the effect of chitosan from the effect of sperm dissolution buffer, we provide the first realistic and complete picture of the effect of chitosans on sperms. We found that CO binds to cell surfaces or/and is internalized by cells and affected the average path velocity of the spermatozoa, in a dose-dependent manner. However, CO did not affect the progressive motility, motility, or sperm morphology, nor did it cause loss of plasma membrane integrity, reactive oxygen species production, or DNA damage. A decrease in spermatozoa adenosine triphosphate levels, which was especially significant at higher CO concentrations, points to possible interference of CO with mitochondrial functions or the glycolysis processes. With this first complete and in-depth look at the spermicidal activities of chitosans, we complement the complex picture of the safety profile of chitosans and inform on further use of chitosans in biomedical applications.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 11, no 50, p. 46572-46584
Keywords [en]
chitosan oligosaccharide, motility, velocity, DNA, ROS, morphology, biocompatibility, ATP
National Category
Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
Identifiers
URN: urn:nbn:se:kth:diva-266521DOI: 10.1021/acsami.9b17605ISI: 000503918300018PubMedID: 31725264Scopus ID: 2-s2.0-85076531772OAI: oai:DiVA.org:kth-266521DiVA, id: diva2:1391690
Note

QC 20200205

Available from: 2020-02-05 Created: 2020-02-05 Last updated: 2020-02-05Bibliographically approved

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Schimpf, UlrikeNachmann, GilaiYan, HongjiCrouzier, Thomas

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