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Surface modification of polydimethylsiloxane (PDMS) induced proliferation and neural-like cells differentiation of umbilical cord blood-derived mesenchymal stem cells

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Abstract

Stem cell-based therapy has recently emerged for use in novel therapeutics for incurable diseases. For successful recovery from neurologic diseases, the most pivotal factor is differentiation and directed neuronal cell growth. In this study, we fabricated three different widths of a micro-pattern on polydimethylsiloxane (PDMS; 1, 2, and 4 μm). Surface modification of the PDMS was investigated for its capacity to manage proliferation and differentiation of neural-like cells from umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs). Among the micro-patterned PDMS fabrications, the 1 μm-patterned PDMS significantly increased cell proliferation and most of the cells differentiated into neuronal cells. In addition, the 1 μm-patterned PDMS induced an increase in cytosolic calcium, while the differentiated cells on the flat and 4 μm-patterned PDMS had no response. PDMS with a 1 μm pattern was also aligned to direct orientation within 10° angles. Taken together, micro-patterned PDMS supported UCB-MSC proliferation and induced neural like-cell differentiation. Our data suggest that micro-patterned PDMS might be a guiding method for stem cell therapy that would improve its therapeutic action in neurological diseases.

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Acknowledgements

This work was supported by the Seoul R&BD Program (#10548) and the BK (Brain Korea) 21 Program for Veterinary Science of Seoul National University, Republic of Korea, and the ERC grant from KOSEF through the Nano-bioelectronics and System Research Center of Seoul National University, Republic of Korea.

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Authors and Affiliations

  1. Adult Stem Cell Research, College of Veterinary Medicine, Seoul National University, 151-742, Seoul, Republic of Korea

    Sun-Jung Kim, Ji-Won Jung, Kwangwon Seo, Sang-Bum Park, Kyung-Hwan Roh, Sae-Rom Lee, Yong-Soon Lee & Kyung-Sun Kang

  2. Laboratory of Stem Cell and Tumor Biology, Department of Veterinary Public Health, College of Veterinary Medicine, and BK21 Program for Veterinary Science, Seoul National University, 151-742, Seoul, Republic of Korea

    Sun-Jung Kim, Ji-Won Jung, Kwangwon Seo, Sang-Bum Park, Kyung-Hwan Roh, Sae-Rom Lee, Yong-Soon Lee & Kyung-Sun Kang

  3. Nano-Bio-Electronics & System Research Center, Seoul National University, 151-742, Seoul, Republic of Korea

    Jae Kyoo Lee, Jin Won Kim & Sung June Kim

  4. School of Electrical Engineering & Computer Science, Seoul National University, 151-742, Seoul, Republic of Korea

    Jin Won Kim & Sung June Kim

  5. Laboratory of Neurophysiology, Seoul National University College of Medicine, 151-742, Seoul, Republic of Korea

    Yun Hwa Hong & Sang Jeong Kim

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  1. Sun-Jung Kim
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  2. Jae Kyoo Lee
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  3. Jin Won Kim
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  10. Sang Jeong Kim
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  11. Yong-Soon Lee
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  12. Sung June Kim
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Correspondence to Sung June Kim or Kyung-Sun Kang.

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S.-J. Kim and J. K. Lee contributed equally to this work.

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Kim, SJ., Lee, J.K., Kim, J.W. et al. Surface modification of polydimethylsiloxane (PDMS) induced proliferation and neural-like cells differentiation of umbilical cord blood-derived mesenchymal stem cells. J Mater Sci: Mater Med 19, 2953–2962 (2008). https://doi.org/10.1007/s10856-008-3413-6

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  • DOI: https://doi.org/10.1007/s10856-008-3413-6

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