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Actin exposure upon tissue injury is a targetable wound site-specific protein marker. | LitMetric

AI Article Synopsis

Article Abstract

Background: Identification of wound-specific markers would represent an important step toward damaged tissue detection and targeted delivery of biologically important materials to injured sites. Such delivery could minimize the amount of therapeutic materials that must be administered and limit potential collateral damage on nearby normal tissues. Yet, biological markers that are specific for injured tissue sites remain elusive.

Methods: In this study, we have developed an immunohistological approach for identification of protein epitopes specifically exposed in wounded tissue sites.

Results: Using tissue samples in combination with fluorescently-labeled antibodies we show that actin, an intracellular cytoskeletal protein, is specifically exposed upon injury. The targetability of actin in injured sites has been demonstrated through the specific delivery of anti-actin conjugated particles to the wounded tissue in a lethal rat model of grade IV liver injury.

Conclusions: These results illustrate that identification of injury-specific protein markers and their targetability for specific delivery is feasible.

General Significance: Identification of wound-specific targets has important medical applications as it could enable specific delivery of various products, such as expression vectors, therapeutic drugs, hemostatic materials, tissue healing, or scar prevention agents, to internal sites of penetrating or surgical wounds regardless of origin, geometry or location.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613279PMC
http://dx.doi.org/10.1016/j.bbrep.2016.05.013DOI Listing

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