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Bousleiman J, Pinsky A, Ki S, Su A, Morozova I, Kalachikov S, Wiqas A, Silver R, Sever M, Austin RN. Function of Metallothionein-3 in Neuronal Cells: Do Metal Ions Alter Expression Levels of MT3? Int J Mol Sci 2017; 18:ijms18061133. [PMID: 28587098 PMCID: PMC5485957 DOI: 10.3390/ijms18061133] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/16/2017] [Accepted: 05/16/2017] [Indexed: 11/25/2022] Open
Abstract
A study of factors proposed to affect metallothionein-3 (MT3) function was carried out to elucidate the opaque role MT3 plays in human metalloneurochemistry. Gene expression of Mt2 and Mt3 was examined in tissues extracted from the dentate gyrus of mouse brains and in human neuronal cell cultures. The whole-genome gene expression analysis identified significant variations in the mRNA levels of genes associated with zinc homeostasis, including Mt2 and Mt3. Mt3 was found to be the most differentially expressed gene in the identified groups, pointing to the existence of a factor, not yet identified, that differentially controls Mt3 expression. To examine the expression of the human metallothioneins in neurons, mRNA levels of MT3 and MT2 were compared in BE(2)C and SH-SY5Y cell cultures treated with lead, zinc, cobalt, and lithium. MT2 was highly upregulated by Zn2+ in both cell cultures, while MT3 was not affected, and no other metal had an effect on either MT2 or MT3.
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Affiliation(s)
- Jamie Bousleiman
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Alexa Pinsky
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Sohee Ki
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Angela Su
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Irina Morozova
- Center for Genome Technology and Biomolecular Engineering, Department of Chemical Engineering, Columbia University, New York, NY 10027, USA.
| | - Sergey Kalachikov
- Center for Genome Technology and Biomolecular Engineering, Department of Chemical Engineering, Columbia University, New York, NY 10027, USA.
| | - Amen Wiqas
- Department of Biology, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Rae Silver
- Department of Psychology and Program in Neuroscience, Barnard College of Columbia University, New York, NY 10027, USA.
- Department of Psychology, Columbia University, New York, NY 10027, USA.
- Department of Pathology and Cell Biology Columbia Health Sciences, New York, NY 10027, USA.
| | - Mary Sever
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
| | - Rachel Narehood Austin
- Department of Chemistry, Barnard College of Columbia University, New York, NY 10027, USA.
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