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Li Z, Li M, Huang S, Yu J, Liu M, Liu Y, Xu M. The expression pattern of Wnt6, Wnt10A, and HOXA13 during regenerating tails of Gekko Japonicus. Gene Expr Patterns 2024; 53:119374. [PMID: 39128795 DOI: 10.1016/j.gep.2024.119374] [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: 02/26/2024] [Revised: 04/28/2024] [Accepted: 08/05/2024] [Indexed: 08/13/2024]
Abstract
Wnt signal is crucial to correctly regenerate tissues along the original axis in many animals. Lizards are able to regenerate their tails spontaneously, while the anterior-posterior axis information required for the successful regeneration is still elusive. In this study, we investigated the expression pattern of Wnt ligands and HOX genes during regeneration. The results of in situ hybridization revealed that Wnt6 and Wnt10A mRNA levels are higher in wound epithelium (WE) than that in blastema during regeneration. In addition, we showed that Wnt agonist positively regulated the expression of HOXA13 in cultured blastema cells, while did not show similar effect on that of HOXB13, HOXC13 and HOXD13. Finally, we found that HOXA13 showed a gradient level along the anterior-posterior axis of regenerated blastema, with higher level at the caudal end. These data proposed that Wnt6, Wnt10A and HOXA13 might play an important role in establishing distal position for regeneration.
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Affiliation(s)
- Zhen Li
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Mingxuan Li
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Shuai Huang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Jing Yu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Mei Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Yan Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Man Xu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.
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Barghouth PG, Rojas S, O'Dell LR, Betancourt AM, Oviedo NJ. Analysis of DNA Double-Stranded Breaks Using the Comet Assay in Planarians. Methods Mol Biol 2022; 2450:479-491. [PMID: 35359324 PMCID: PMC9761910 DOI: 10.1007/978-1-0716-2172-1_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Comet assay provides the opportunity to detect and characterize DNA strand breaks. Cellular lysing followed by embedding in agarose slide is used to visualize under an electrical current migration patterns corresponding to DNA fragments of different sizes. Here we describe the process of detecting and characterizing DNA damage by Comet assay on planarians, which is a model organism commonly used to understand the process of whole-body regeneration, stem cell regulation, and adult tissue maintenance.
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Affiliation(s)
- Paul G Barghouth
- Department of Molecular & Cell Biology, University of California, Merced, CA, USA
- Quantitative and Systems Biology Graduate Program, University of California, Merced, CA, USA
| | - Salvador Rojas
- Department of Molecular & Cell Biology, University of California, Merced, CA, USA
- Quantitative and Systems Biology Graduate Program, University of California, Merced, CA, USA
| | - Lacey R O'Dell
- Department of Molecular & Cell Biology, University of California, Merced, CA, USA
| | - Andrew M Betancourt
- Department of Molecular & Cell Biology, University of California, Merced, CA, USA
| | - Néstor J Oviedo
- Department of Molecular & Cell Biology, University of California, Merced, CA, USA.
- Quantitative and Systems Biology Graduate Program, University of California, Merced, CA, USA.
- Health Sciences Research Institute, University of California, Merced, CA, USA.
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