In Situ Imaging of Tissue Remodeling with Collagen Hybridizing Peptides
| Autor: | Michael Seungchu Yu, Timothy Burwell, Jane Connor, Norman C. Peterson, Jeongmin Hwang, Yufeng Huang, Stephen J. Weiss, Yang Li |
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| Rok vydání: | 2017 |
| Předmět: |
Male
0301 basic medicine matrix metalloproteinase Materials science Swine Pulmonary Fibrosis Myocardial Infarction General Physics and Astronomy Inflammation Osteoarthritis Matrix metalloproteinase Article Bone remodeling Mice 03 medical and health sciences chemistry.chemical_compound Glomerulonephritis 0302 clinical medicine Biotin triple helix Fibrosis Pulmonary fibrosis medicine Animals Humans General Materials Science bone formation Aged fibrosis targeted delivery General Engineering medicine.disease Cell biology Mice Inbred C57BL Collagen type I alpha 1 030104 developmental biology chemistry inflammation 030220 oncology & carcinogenesis Immunology Bone Remodeling Collagen medicine.symptom Peptides |
| Zdroj: | ACS Nano |
| ISSN: | 1936-086X 1936-0851 |
| DOI: | 10.1021/acsnano.7b03150 |
| Popis: | Collagen, the major structural component of nearly all mammalian tissues, undergoes extensive proteolytic remodeling during developmental states and a variety of life-threatening diseases such as cancer, myocardial infarction, and fibrosis. While degraded collagen could be an important marker of tissue damage, it is difficult to detect and target using conventional tools. Here, we show that a designed peptide (collagen hybridizing peptide: CHP), which specifically hybridizes to the degraded, unfolded collagen chains, can be used to image degraded collagen and inform tissue remodeling activity in various tissues: labeled with 5-carboxyfluorescein and biotin, CHPs enabled direct localization and quantification of collagen degradation in isolated tissues within pathologic states ranging from osteoarthritis and myocardial infarction to glomerulonephritis and pulmonary fibrosis, as well as in normal tissues during developmental programs associated with embryonic bone formation and skin aging. The results indicate the general correlation between the level of collagen remodeling and the amount of denatured collagen in tissue and show that the CHP probes can be used across species and collagen types, providing a versatile tool for not only pathology and developmental biology research but also histology-based disease diagnosis, staging, and therapeutic screening. This study lays the foundation for further testing CHP as a targeting moiety for theranostic delivery in various animal models. |
| Databáze: | OpenAIRE |
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