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Coculture of human spermatozoa with reproductive tract cell monolayers can enhance sperm functions better than coculture with vero cell monolayers

  • Andrology
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Journal of Assisted Reproduction and Genetics Aims and scope Submit manuscript

Abstract

Purpose: In order to develop a better system for support of human sperm function in vitro, we conducted studies to evaluate whether reproductive tract cells are better than non-reproductive tract cells as an adjunt in that regard.

Methods: Human spermatozoa were cocultured with Vero cells, with human oviduct cells and endometrial cells, and without cells (control) for either 1, 4, or 24 hr. Sperm motility was then analyzed with a computer-aided sperm analyzer (CASA-Hamiliton Thron, HTM IVOS Motility Analyzer). Aliquots of spermatozoa incubated for 24 hr were also stained with Hoechst 33258 and FITC-PNA to evaluate the status of acrosome in live cells.

Results: Significant differences (P<0.05) between the oviduct cell and the control groups after 24 hr were evident in the curvilinear velocity (VCL) (81.4±13.4 vs 60.0±14.1 µm/sec) and amplitude of lateral head displacement (ALH) (5.2±0.6 vs 4.1±0.5 µm). The incidence of acrosome reaction of live sperm was significantly higher in the endometrial cell group than in the controls (25.4±9.9 vs 6.6±2.4%;P<0.001).

Conclusions: Coculture with human reproductive tract cells seems to improve some functional parameters of human spermatozoa. Coincubation with such cell lines, especially oviduct cells, might be a feasible approach to optimization of human spermatozoa for assisted fertilization using subfertile or frozen-thawed samples. We think coincubating human spermatozoa with a human reproductive tract cell line, especially oviduct cells, might be a feasible approach in preparing human spermatozoa for assisted fertilization in subfertile and frozen-thawed semen samples.

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Authors and Affiliations

  1. The Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital and Medical School, Linkou Medical Center, 5 Fu-Hsing Street, kwei-Shan, Tyo-Yuan, Taiwan 10591 Republic of China

    Y. M. Lai, F. H. Chang, C. L. Lee, J. D. Lee, H. Y. Huang, M. L. Wang, P. J. Chan, M. Y. Chang & Y. K. Soong

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  1. Y. M. Lai
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  2. F. H. Chang
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  3. C. L. Lee
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  4. J. D. Lee
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  5. H. Y. Huang
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  6. M. L. Wang
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  7. P. J. Chan
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  8. M. Y. Chang
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  9. Y. K. Soong
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Lai, Y.M., Chang, F.H., Lee, C.L. et al. Coculture of human spermatozoa with reproductive tract cell monolayers can enhance sperm functions better than coculture with vero cell monolayers. J Assist Reprod Genet 13, 417–422 (1996). https://doi.org/10.1007/BF02066175

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  • DOI: https://doi.org/10.1007/BF02066175

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