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Internalization of silver nanoparticles into mouse spermatozoa results in poor fertilization and compromised embryo development.

ABSTRACT: Silver nanoparticles (AgNPs) have many features that make them attractive as medical devices, especially in therapeutic agents and drug delivery systems. Here we have introduced AgNPs into mouse spermatozoa and then determined the cytotoxic effects of AgNPs on sperm function and subsequent embryo development. Scanning electron microscopy and transmission electron microscopy analyses showed that AgNPs could be internalized into sperm cells. Furthermore, exposure to AgNPs inhibited sperm viability and the acrosome reaction in a dose-dependent manner, whereas sperm mitochondrial copy numbers, morphological abnormalities, and mortality due to reactive oxygen species were significantly increased. Likewise, sperm abnormalities due to AgNPs internalization significantly decreased the rate of oocyte fertilization and blastocyst formation. Blastocysts obtained from AgNPs-treated spermatozoa showed lower expression of trophectoderm-associated and pluripotent marker genes. Overall, we propose that AgNPs internalization into spermatozoa may alter sperm physiology, leading to poor fertilization and embryonic development. Such AgNPs-induced reprotoxicity may be a valuable tool as models for testing the safety and applicability of medical devices using AgNPs.

SUBMITTER: Yoisungnern T

PROVIDER: S-EPMC4459204 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Internalization of silver nanoparticles into mouse spermatozoa results in poor fertilization and compromised embryo development.

Yoisungnern Ton T Choi Yun-Jung YJ Han Jae Woong JW Kang Min-Hee MH Das Joydeep J Gurunathan Sangiliyandi S Kwon Deug-Nam DN Cho Ssang-Goo SG Park Chankyu C Chang Won Kyung WK Chang Byung-Soo BS Parnpai Rangsun R Kim Jin-Hoi JH

Scientific reports 20150608

Silver nanoparticles (AgNPs) have many features that make them attractive as medical devices, especially in therapeutic agents and drug delivery systems. Here we have introduced AgNPs into mouse spermatozoa and then determined the cytotoxic effects of AgNPs on sperm function and subsequent embryo development. Scanning electron microscopy and transmission electron microscopy analyses showed that AgNPs could be internalized into sperm cells. Furthermore, exposure to AgNPs inhibited sperm viability ...[more]

PMID: 26054035

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Internalization of silver nanoparticles into mouse spermatozoa results in poor fertilization and compromised embryo development.

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Internalization of silver nanoparticles into mouse spermatozoa results in poor fertilization and compromised embryo development.

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