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Sosnowski P, Sass P, Słonimska P, Płatek R, Kamińska J, Baczyński Keller J, Mucha P, Peszyńska-Sularz G, Czupryn A, Pikuła M, Piotrowski A, Janus Ł, Rodziewicz-Motowidło S, Skowron P, Sachadyn P. Regenerative Drug Discovery Using Ear Pinna Punch Wound Model in Mice. Pharmaceuticals (Basel) 2022; 15:ph15050610. [PMID: 35631437 PMCID: PMC9145447 DOI: 10.3390/ph15050610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 01/25/2023] Open
Abstract
The ear pinna is a complex tissue consisting of the dermis, cartilage, muscles, vessels, and nerves. Ear pinna healing is a model of regeneration in mammals. In some mammals, including rabbits, punch wounds in the ear pinna close spontaneously; in common-use laboratory mice, they remain for life. Agents inducing ear pinna healing are potential regenerative drugs. We tested the effects of selected bioactive agents on 2 mm ear pinna wound closure in BALB/c mice. Our previous research demonstrated that a DNA methyltransferase inhibitor, zebularine, remarkably induced ear pinna regeneration. Although experiments with two other demethylating agents, RG108 and hydralazine, were unsuccessful, a histone deacetylase inhibitor, valproic acid, was another epigenetic agent found to increase ear hole closure. In addition, we identified a pro-regenerative activity of 4-ketoretinoic acid, a retinoic acid metabolite. Attempts to counteract the regenerative effects of the demethylating agent zebularine, with folates as methyl donors, failed. Surprisingly, a high dose of methionine, another methyl donor, promoted ear hole closure. Moreover, we showed that the regenerated areas of ear pinna were supplied with nerve fibre networks and blood vessels. The ear punch model proved helpful in testing the pro-regenerative activities of small-molecule compounds and observations of peripheral nerve regeneration.
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Affiliation(s)
- Paweł Sosnowski
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Piotr Sass
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Paulina Słonimska
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Rafał Płatek
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Jolanta Kamińska
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Jakub Baczyński Keller
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
| | - Piotr Mucha
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland;
| | - Grażyna Peszyńska-Sularz
- Tri-City University Animal House—Research Service Centre, Medical University of Gdańsk, 80-211 Gdańsk, Poland;
| | - Artur Czupryn
- Laboratory of Neurobiology, Nencki Institute of Experimental Biology PAS, 02-093 Warsaw, Poland;
| | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdańsk, 80-211 Gdańsk, Poland;
| | - Arkadiusz Piotrowski
- Department of Biology and Pharmaceutical Botany, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland;
| | | | | | - Piotr Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland;
| | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (P.S.); (P.S.); (P.S.); (R.P.); (J.K.); (J.B.K.)
- Correspondence:
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Anderson ZT, Palmer JW, Idris MI, Villavicencio KM, Le G, Cowart J, Weinstein DE, Harris ML. Topical RT1640 treatment effectively reverses gray hair and stem cell loss in a mouse model of radiation‐induced canities. Pigment Cell Melanoma Res 2020; 34:89-100. [DOI: 10.1111/pcmr.12913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/16/2020] [Accepted: 06/30/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Zoya T. Anderson
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
| | - Joseph W. Palmer
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
| | - Misgana I. Idris
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
| | | | - Giang Le
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
| | - Jaelyn Cowart
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
| | | | - Melissa L. Harris
- Department of Biology University of Alabama at Birmingham Birmingham AL USA
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