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Chen S, Bin Abdul Rahim AA, Mok P, Liu D. An effective device to enable consistent scratches for in vitro scratch assays. BMC Biotechnol 2023; 23:32. [PMID: 37641063 PMCID: PMC10464081 DOI: 10.1186/s12896-023-00806-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND The in-vitro scratch assay is a useful method in wound healing research to assess cell migration. In this assay, a scratch is created in a confluent cell layer by mechanically removing cells through manual scraping with a sharp-edged tool. This step is traditionally done with pipette tips and is unsuitable for high-throughput assays, as the created scratches are highly variable in width and position. Commercially available solutions are often expensive, and require specific cultureware which might not be suitable for all studies. RESULTS In this study, we have developed a flexible cell scratch device comprising a single wounding tool, a guide and an imaging template for consistent and reproducible scratch assays in 96-well plates. Our results showed that the device produced a more consistent scratch profile compared to the conventional method of using pipette tips. The imaging template also allowed operators to easily locate and image the same region of interest at different time points, which potentially could be used for other assays. CONCLUSIONS Our flexible yet effective scratch device thus enables robust scratch assays that can be applied to different experimental needs, providing researchers with an easy and reliable tool for their studies.
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Affiliation(s)
- Sixun Chen
- Agency for Science, Technology and Research (A*STAR), Bioprocessing Technology Institute BTI, 20 Biopolis Way, Singapore, 138668, Singapore
- Celligenics Pte Ltd, 30 Biopolis Street, Singapore, 138671, Singapore
| | - Ahmad Amirul Bin Abdul Rahim
- Agency for Science, Technology and Research (A*STAR), Bioprocessing Technology Institute BTI, 20 Biopolis Way, Singapore, 138668, Singapore
| | - Pamela Mok
- Celligenics Pte Ltd, 30 Biopolis Street, Singapore, 138671, Singapore
| | - Dan Liu
- Agency for Science, Technology and Research (A*STAR), Bioprocessing Technology Institute BTI, 20 Biopolis Way, Singapore, 138668, Singapore.
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Forero-Doria O, Polo E, Marican A, Guzmán L, Venegas B, Vijayakumar S, Wehinger S, Guerrero M, Gallego J, Durán-Lara EF. Supramolecular hydrogels based on cellulose for sustained release of therapeutic substances with antimicrobial and wound healing properties. Carbohydr Polym 2020; 242:116383. [DOI: 10.1016/j.carbpol.2020.116383] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 12/15/2022]
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de Oliveira Rodrigues R, Yaochite JNU, Sasahara GL, Albuquerque AA, da Cruz Fonseca SG, de Vasconcelos Araújo TD, Santiago GMP, de Sousa LM, de Carvalho JL, Alves APNN, de Carvalho PG, Nagao-Dias AT. Antioxidant, anti-inflammatory and healing potential of ethyl acetate fraction of Bauhinia ungulata L. (Fabaceae) on in vitro and in vivo wound model. Mol Biol Rep 2020; 47:2845-2859. [PMID: 32239466 DOI: 10.1007/s11033-020-05332-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 02/18/2020] [Indexed: 11/26/2022]
Abstract
The present work aimed to investigate the antioxidant, anti-inflammatory and wound healing potential of ethyl acetate fraction from Bauhinia ungulata L. (FABU) on in vitro and in vivo models. Wound healing assay using human lung adenocarcinoma A549 cell line was employed to evaluate the ability of FABU in modulating cell migration. In addition, a surgical wound model in C57BL/6 mice was used to study the healing potential of FABU incorporated into gel carbomer 940 (Carbopol®). Evaluation of lipid peroxidation, inflammatory and anti-inflammatory mediator gene expression, rate of wound closure, and histological analysis were done. FABU significantly reduced the gap area in in vitro wound healing assay, 24 h after treatment. In the animal model, FABU at 0.5% topically applied once-daily for 5 days to the surgical wounds significantly reduced the lesion area. Moreover, it significantly decreased the levels of lipid peroxidation in the lesions and decreased the relative gene expression levels of IL-1β and TNF-α in the injured region. In conclusion, our study suggests that Bauhinia ungulata can effectively promote the wound healing, probably by regulating the inflammatory environment during the early stages of the process.
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Affiliation(s)
- Raphael de Oliveira Rodrigues
- Laboratory of Immunology, Department of Clinical Analysis and Toxicology, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitão Francisco Pedro 1210, Fortaleza, CE, CEP 60430-370, Brazil.
| | - Juliana Navarro Ueda Yaochite
- Laboratory of Immunology, Department of Clinical Analysis and Toxicology, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitão Francisco Pedro 1210, Fortaleza, CE, CEP 60430-370, Brazil
| | - Greyce Luri Sasahara
- Laboratory of Immunology, Department of Clinical Analysis and Toxicology, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitão Francisco Pedro 1210, Fortaleza, CE, CEP 60430-370, Brazil
| | - Andressa Almeida Albuquerque
- Laboratory of Immunology, Department of Clinical Analysis and Toxicology, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitão Francisco Pedro 1210, Fortaleza, CE, CEP 60430-370, Brazil
| | - Said Gonçalves da Cruz Fonseca
- Department of Pharmacy, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitao Francisco Pedro 1210, Fortaleza, CE, 60430-370, Brazil
| | - Thiago Dias de Vasconcelos Araújo
- Department of Pharmacy, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitao Francisco Pedro 1210, Fortaleza, CE, 60430-370, Brazil
| | - Gilvandete Maria Pinheiro Santiago
- Department of Pharmacy, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitao Francisco Pedro 1210, Fortaleza, CE, 60430-370, Brazil
| | - Leôncio Mesquita de Sousa
- Department of Organic and Inorganic Chemistry, Sciences Center, Universidade Federal do Ceará (UFC), Campus do Pici 12.200, Fortaleza, CE, 60021-940, Brazil
| | - Jarbas Lima de Carvalho
- Department of Organic and Inorganic Chemistry, Sciences Center, Universidade Federal do Ceará (UFC), Campus do Pici 12.200, Fortaleza, CE, 60021-940, Brazil
| | - Ana Paula Negreiros Nunes Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Paulo Germano de Carvalho
- Center for Health Sciences, Universidade de Fortaleza (UNIFOR), Av. Washington Soares 1321, Fortaleza, CE, 60811-905, Brazil
| | - Aparecida Tiemi Nagao-Dias
- Laboratory of Immunology, Department of Clinical Analysis and Toxicology, Faculty of Pharmacy, Universidade Federal do Ceará (UFC), Rua Capitão Francisco Pedro 1210, Fortaleza, CE, CEP 60430-370, Brazil
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Lee TB, Kim HR, Park SY. A Lab-Made Wound Maker for Analysis of Cell Migration in a 96-Well Plate. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2020. [DOI: 10.15324/kjcls.2020.52.1.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Tae Bok Lee
- Confocal Core Facility, Center for Medical Innovation, Seoul National University Hospital, Seoul, Korea
| | - Hwa Ryoung Kim
- Department of Biomedical Engineering, Seoul National University Hospital, Seoul, Korea
| | - Seo Young Park
- Department of Research and Experiments, Center for Medical Innovation, Seoul National University Hospital, Seoul, Korea
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