Volume 104, Issue 6 pp. 1534-1543
Original Article

A hybrid microfluidic system for regulation of neural differentiation in induced pluripotent stem cells

Zahra Hesari

Zahra Hesari

Deparmentof Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Search for more papers by this author
Massoud Soleimani

Massoud Soleimani

Department of Hematology and Blood Banking, Faculty of Medicine, Tarbiat Modaress University, Tehran, Iran

Search for more papers by this author
Fatemeh Atyabi

Fatemeh Atyabi

Deparmentof Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Search for more papers by this author
Meysam Sharifdini

Meysam Sharifdini

Department of Medical Microbiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran

Search for more papers by this author
Samad Nadri

Samad Nadri

Medical Biotechnology and Nanotechnology Department, Faculty of Medicine, Zanjan University of Medical Science, Zanjan, Iran

Search for more papers by this author
Majid Ebrahimi Warkiani

Majid Ebrahimi Warkiani

School of Mechanical and Manufacturing Engineering, Australian Centre for NanoMedicine, University of New South Wales, Sydney, Australia

Search for more papers by this author
Mehrak Zare

Corresponding Author

Mehrak Zare

Skin and Stemcell Research Center, Tehran University of Medical Sciences, Tehran, Iran

Correspondence to: R. Dinarvand; e-mail: [email protected]Search for more papers by this author
Rassoul Dinarvand

Corresponding Author

Rassoul Dinarvand

Deparmentof Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Correspondence to: R. Dinarvand; e-mail: [email protected]Search for more papers by this author
First published: 23 February 2016
Citations: 32

Abstract

Controlling cellular orientation, proliferation, and differentiation is valuable in designing organ replacements and directing tissue regeneration. In the present study, we developed a hybrid microfluidic system to produce a dynamic microenvironment by placing aligned PDMS microgrooves on surface of biodegradable polymers as physical guidance cues for controlling the neural differentiation of human induced pluripotent stem cells (hiPSCs). The neuronal differentiation capacity of cultured hiPSCs in the microfluidic system and other control groups was investigated using quantitative real time PCR (qPCR) and immunocytochemistry. The functionally of differentiated hiPSCs inside hybrid system's scaffolds was also evaluated on the rat hemisected spinal cord in acute phase. Implanted cell's fate was examined using tissue freeze section and the functional recovery was evaluated according to the Basso, Beattie, and Bresnahan (BBB) locomotor rating scale. Our results confirmed the differentiation of hiPSCs to neuronal cells on the microfluidic device where the expression of neuronal-specific genes was significantly higher compared to those cultured on the other systems such as plain tissue culture dishes and scaffolds without fluidic channels. Although survival and integration of implanted hiPSCs did not lead to a significant functional recovery, we believe that combination of fluidic channels with nanofiber scaffolds provides a great microenvironment for neural tissue engineering, and can be used as a powerful tool for in situ monitoring of differentiation potential of various kinds of stem cells. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1534–1543, 2016.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.