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Tsukiboshi Y, Noguchi A, Horita H, Mikami Y, Yokota S, Ogata K, Yoshioka H. Let-7c-5p associate with inhibition of phenobarbital-induced cell proliferation in human palate cells. Biochem Biophys Res Commun 2024; 696:149516. [PMID: 38241808 DOI: 10.1016/j.bbrc.2024.149516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
Cleft palate (CP) is one of the most common congenital diseases, and is accompanied by a complicated etiology. Medical exposure in women is among one of the reasons leading to CP. Recently, it has been reported that microRNA (miRNA) plays a crucial role in palate formation and the disruption of miRNA that influence the development of CP. Although association with pharmaceuticals and miRNAs were suggested, it has remained largely unknow. The aim of the current investigation is to elucidate upon the miRNA associated with the inhibition of phenobarbital (PB)-induced cell proliferation in human embryonic palatal mesenchymal (HEPM) cells. We showed that PB inhibited HEPM cell viability in a dose-dependent manner. We demonstrated that PB treatment suppressed cyclin-D1 expression in HEPM cells. Furthermore, PB upregulated let-7c-5p expression and downregulated the expression of two downstream genes (BACH1 and PAX3). Finally, we demonstrated that the let-7c-5p inhibitor alleviated PB-induced inhibition of cell proliferation and altered BACH1 and PAX3 expression levels. These results suggest that PB suppresses cell viability by modulating let-7c-5p expression.
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Affiliation(s)
- Yosuke Tsukiboshi
- Department of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu, 509-0293, Japan
| | - Azumi Noguchi
- Department Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8588, Japan
| | - Hanane Horita
- Department of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu, 509-0293, Japan
| | - Yurie Mikami
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences, 3-25-26 Tono-machi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Kenichi Ogata
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroki Yoshioka
- Department of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu, 509-0293, Japan.
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Bardag Gorce F, Al Dahan M, Narwani K, Terrazas J, Ferrini M, Calhoun CC, Uyanne J, Royce-Flores J, Crum E, Niihara Y. Human Oral Mucosa as a Potentially Effective Source of Neural Crest Stem Cells for Clinical Practice. Cells 2023; 12:2216. [PMID: 37759439 PMCID: PMC10526281 DOI: 10.3390/cells12182216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
We report in this study on the isolation and expansion of neural crest stem cells (NCSCs) from the epithelium of oral mucosa (OM) using reagents that are GMP-certified and FDA-approved for clinical use. Characterization analysis showed that the levels of keratins K2, K6C, K4, K13, K31, and K15-specific to OM epithelial cells-were significantly lower in the experimental NCSCs. While SOX10 was decreased with no statistically significant difference, the earliest neural crest specifier genes SNAI1/2, Ap2a, Ap2c, SOX9, SOX30, Pax3, and Twist1 showed a trend in increased expression in NCSCs. In addition, proteins of Oct4, Nestin and Noth1 were found to be greatly expressed, confirming NCSC multipotency. In conclusion, our study showed that the epithelium of OM contains NCSCs that can be isolated and expanded with clinical-grade reagents to supply the demand for multipotent cells required for clinical applications in regenerative medicine. Supported by Emmaus Medical Inc.
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Affiliation(s)
- Fawzia Bardag Gorce
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Division of Oral & Maxillofacial Surgery and Hospital Dentistry, Department of Surgery Harbor UCLA Medical Center, Torrance, CA 90502, USA
- Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA
| | - Mais Al Dahan
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Division of Oral & Maxillofacial Surgery and Hospital Dentistry, Department of Surgery Harbor UCLA Medical Center, Torrance, CA 90502, USA
| | - Kavita Narwani
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
| | - Jesus Terrazas
- Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA
| | - Monica Ferrini
- Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA
| | - Colonya C. Calhoun
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Department of Surgery, UCLA, David Geffen School of Medicine, Los Angeles, CA 90095, USA
- UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Department of Oral & Maxillofacial Surgery and Hospital Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Jettie Uyanne
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Division of Oral & Maxillofacial Surgery and Hospital Dentistry, Department of Surgery Harbor UCLA Medical Center, Torrance, CA 90502, USA
- Herman Ostrow School of Dentistry of USC, Los Angeles, CA 90089, USA
| | - Jun Royce-Flores
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Division of Oral & Maxillofacial Surgery and Hospital Dentistry, Department of Surgery Harbor UCLA Medical Center, Torrance, CA 90502, USA
- UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Eric Crum
- Division of Oral & Maxillofacial Surgery and Hospital Dentistry, Department of Surgery Harbor UCLA Medical Center, Torrance, CA 90502, USA
- Department of Surgery, UCLA, David Geffen School of Medicine, Los Angeles, CA 90095, USA
- UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Yutaka Niihara
- The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA (Y.N.)
- Emmaus Medical, Inc., Torrance, CA 90503, USA
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