{"id":14282,"date":"2026-06-10T19:12:00","date_gmt":"2026-06-11T00:12:00","guid":{"rendered":"https:\/\/americacellbank.com\/wound-closure-assay-report-scratch-assay\/"},"modified":"2026-06-11T11:20:34","modified_gmt":"2026-06-11T16:20:34","slug":"wound-closure-assay-report-scratch-assay","status":"publish","type":"post","link":"https:\/\/americacellbank.com\/en\/wound-closure-assay-report-scratch-assay\/","title":{"rendered":"Wound closure assay report (scratch assay)"},"content":{"rendered":"\n

Introduction<\/strong><\/h2>\n\n

Regenerative medicine has acquired a fundamental role in the development of new therapeutic strategies aimed at the repair and regeneration of damaged tissues. Within this field, exosomes derived from mesenchymal stem cells have aroused growing interest due to their ability to modulate biological processes related to cell communication, proliferation, migration and tissue regeneration (Th\u00e9ry, Zitvogel & Amigorena, 2002). <\/p>\n\n

These extracellular vesicles contain proteins, lipids, messenger RNA and microRNA that actively participate in cell repair mechanisms and inflammatory response (Y\u00e1\u00f1ez-M\u00f3 et al., 2015).<\/p>\n\n

The present study aims to evaluate the effect of exosomes on the wound closure process in dermal fibroblasts using the technique known as Scratch Assay or wound closure assay. This method is a widely used tool in cell research to analyze the migratory capacity of cells in response to a simulated injury under controlled laboratory conditions (Liang, Park & \u200b\u200bGuan, 2007). <\/p>\n\n

Cell migration represents an essential process in tissue healing and regeneration, especially in skin repair and in the restoration of tissue integrity.<\/p>\n\n

Dermal fibroblasts play a key role in wound healing processes due to their involvement in extracellular matrix synthesis, collagen production, and tissue remodeling. Therefore, evaluating the behavior of these cells in response to exosome treatment allows us to determine the regenerative and biostimulatory potential of these biological components. In this context, the study compares an untreated control group with a group treated with refrigerated exosomes to observe differences in cell migration rate and wound closure over a 72-hour period. <\/p>\n\n

Several studies have demonstrated that exosomes derived from mesenchymal stem cells can accelerate tissue repair by stimulating cell proliferation, promoting angiogenesis, and modulating inflammatory processes (Hu et al., 2016). Furthermore, these extracellular vesicles have been reported to represent a promising alternative to <\/p>\n\n

conventional cell therapies, due to their stability, lower immunological risk and ease of storage and application (Zhang et al., 2015).<\/p>\n\n

Therefore, this trial seeks to provide experimental evidence on the effectiveness of exosomes as regenerative agents, evaluating their ability to promote cell migration and accelerate the repair process in dermal fibroblasts. <\/p>\n\n

The results obtained could contribute to the development of future therapeutic applications in regenerative medicine, dermatology, and tissue bioengineering.<\/p>\n\n

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  1. objective <\/strong><\/li>\n<\/ol>\n\n

    Evaluate the effect of exosomes on wound closure in dermal fibroblasts. <\/p>\n\n

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    1. Methodology <\/strong><\/li>\n<\/ol>\n\n

      Fibroblasts were cultured until a confluence greater than 80% was achieved and a slight wound, “scratch”, was made to simulate a wound. <\/p>\n\n

      Two groups were established: <\/p>\n\n