数字农科院2.0

Integrated Antioxidants, Nanoparticle, and Antifreeze Protein Strategies Synergistically Enhance Cryotop Vitrification Outcomes of Porcine Parthenogenetic Embryos

文献类型： 外文期刊

作者： Jesse Oluwaseun Ayantoye;Baigao Yang;Jianhua Dong;Xiaoyi Feng;Muhammad Shahzad;Hubdar Ali Kolachi;Pengcheng Wan;Hongmei Pan;Xueming Zhao

作者机构：

关键词： antifreeze protein I;apoptosis;berberine;Cryotop vitrification;Fe3O4 nanoparticles;melatonin;oxidative stress;porcine embryos

期刊名称： Antioxidants

ISSN：

年卷期： 2025 年 14 卷 12 期

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收录情况： SCIE（2025版）

摘要： Porcine embryo cryopreservation remains challenging due to high lipid content, oxidative stress, and ice recrystallization that compromise post-thaw survival and developmental competence. We evaluated an integrated vitrification approach combining antioxidants (berberine, melatonin), iron oxide (Fe3O4) nanoparticles, and antifreeze protein I (AFP I) with post-thaw interventions (glutathione and zona pellucida digestion) to synergistically improve cryosurvival and developmental competence of porcine parthenogenetic embryos. In vitro-matured parthenogenetic embryos were vitrified on Cryotop using a protocol that included berberine and melatonin in embryo culture, Fe3O4 nanoparticles and AFP I in cryoprotectant solutions, and post-warming treatment with glutathione and a brief zona pellucida digestion. Survival, hatching, adenosine triphosphate (ATP) content, reactive oxygen species (ROS) levels, cytoskeletal integrity, and the expression of BAX, BCL2, OCT4, and SOX2 genes were measured. Both the dual antioxidant (berberine + melatonin) and nanoparticle + AFP interventions produced greater improvements than individual additives. Fully integrating all components yielded the highest post-thaw viability, with ~94% survival and ~90% hatching, values statistically equivalent to those of fresh embryos. Treated embryos also showed significantly higher ATP levels, lower ROS accumulation (approaching levels in fresh embryos), and preserved microtubule structure (~91% normal). Vitrification alone upregulated BAX and downregulated BCL2, OCT4, and SOX2, whereas the integrated protocol restored their expression levels to near control levels. This multi-component antioxidant, nanoparticle, antifreeze strategy synergistically enhances the cryotolerance and developmental competence of vitrified porcine embryos by mitigating oxidative stress and cryoinjury. Post-thaw viability and molecular markers were restored to near-fresh conditions, demonstrating a promising approach to improve embryo cryopreservation outcomes in swine and potentially other species.

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