Volume 13, Issue 1 pp. 12-24
RESEARCH ARTICLE

MicroRNA-132 directs human periodontal ligament-derived neural crest stem cell neural differentiation

Tsz Kin Ng

Tsz Kin Ng

Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China

Shantou University Medical College, Shantou, Guangdong, China

Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong

Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida

These authors contributed equally to this work.Search for more papers by this author
Qichen Yang

Qichen Yang

Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong

These authors contributed equally to this work.Search for more papers by this author
Veronica R. Fortino

Veronica R. Fortino

Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida

Department of Biological Sciences, Nova Southeastern University, Fort Lauderdale, Florida

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Nikky Yuk-Ki Lai

Nikky Yuk-Ki Lai

Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong

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Carlos M. Carballosa

Carlos M. Carballosa

Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida

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Jordan M. Greenberg

Jordan M. Greenberg

Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida

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Kwong Wai Choy

Kwong Wai Choy

Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong

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Daniel Pelaez

Daniel Pelaez

Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida

Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Miami, Florida

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Chi Pui Pang

Chi Pui Pang

Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China

Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong

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Herman S. Cheung

Corresponding Author

Herman S. Cheung

Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida

Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida

Correspondence

Herman S. Cheung, Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, 1201 NW 16th Street, Miami, FL 33125.

Email: [email protected]

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First published: 23 October 2018
Citations: 9

Abstract

Neurogenesis is the basis of stem cell tissue engineering and regenerative medicine for central nervous system (CNS) disorders. We have established differentiation protocols to direct human periodontal ligament-derived stem cells (PDLSCs) into neuronal lineage, and we recently isolated the neural crest subpopulation from PDLSCs, which are pluripotent in nature. Here, we report the neural differentiation potential of these periodontal ligament-derived neural crest stem cells (NCSCs) as well as its microRNA (miRNA) regulatory mechanism and function in NCSC neural differentiation. NCSCs, treated with basic fibroblast growth factor and epidermal growth factor-based differentiation medium for 24 days, expressed neuronal and glial markers (βIII-tubulin, neurofilament, NeuN, neuron-specific enolase, GFAP, and S100) and exhibited glutamate-induced calcium responses. The global miRNA expression profiling identified 60 upregulated and 19 downregulated human miRNAs after neural differentiation, and the gene ontology analysis of the miRNA target genes confirmed the neuronal differentiation-related biological functions. In addition, overexpression of miR-132 in NCSCs promoted the expression of neuronal markers and downregulated ZEB2 protein expression. Our results suggested that the pluripotent NCSCs from human periodontal ligament can be directed into neural lineage, which demonstrate its potential in tissue engineering and regenerative medicine for CNS disorders.

CONFLICTS OF INTEREST

The authors disclose no conflicts of interest.

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