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논문 기본 정보

자료유형
학술저널
저자정보
Um Seung-Hoon (Biomaterials Research Center Biomedical Research Division Korea Institute of Science and Technology (KIST)) 서영민 (한국과학기술연구원) 서현선 (한국과학기술연구원) Lee Kyungwoo (Biomaterials Research Center Biomedical Research Division Korea Institute of Science and Technology (KIST)) Park Sun Hwa (Canada Research Chair I in Biomaterials and Bioengineering for the Innovation in Surgery Laval University) Jeon Jung Ho (Department of Otolaryngology‑Head and Neck Surgery College of Medicine The Catholic University of Korea) 임정연 (가톨릭대학교 의과대학 비이인후과) Ok Myoung-Ryul (Biomaterials Research Center Biomedical Research Division Korea Institute of Science and Technology (KIST)) 김유찬 (한국과학기술연구원) 김현정 (한림대학교) 천철홍 (고려대학교) Han Hyung-Seop (Biomaterials Research Center Biomedical Research Division Korea Institute of Science and Technology (KIST)) Edwards James R. (Nufeld Department of Orthopaedics Rheumatology and Musculoskeletal Sciences (NDORMS) Botnar Research Centre University of Oxford) 김성원 (가톨릭대학교) Jeon Hojeong (Biomaterials Research Center Biomedical Research Division Korea Institute of Science and Technology (KIST))
저널정보
한국생체재료학회 생체재료학회지 생체재료학회지 제27권
발행연도
2023.3
수록면
119 - 133 (15page)
DOI
10.1186/s40824-022-00327-w

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Cells in the human body experience different growth environments and conditions, such as compressive pressure and oxygen concentrations, depending on the type and location of the tissue. Thus, a culture device that emulates the environment inside the body is required to study cells outside the body.A blanket-type cell culture device (Direct Contact Pressing: DCP) was fabricated with an alginate-based hydrogel. Changes in cell morphology due to DCP pressure were observed using a phase contrast microscope. The changes in the oxygen permeability and pressure according to the hydrogel concentration of DCP were analyzed. To compare the effects of DCP with normal or artificial hypoxic cultures, cells were divided based on the culture technique: normal culture, DCP culture device, and artificial hypoxic environment. Changes in phenotype, genes, and glycosaminoglycan amounts according to each environment were evaluated. Based on this, the mechanism of each culture environment on the intrinsic properties of conserving chondrocytes was suggested.Chondrocytes live under pressure from the surrounding collagen tissue and experience a hypoxic environment because collagen inhibits oxygen permeability. By culturing the chondrocytes in a DCP environment, the capability of DCP to produce a low-oxygen and physical pressure environment was verified. When human primary chondrocytes, which require pressure and a low-oxygen environment during culture to maintain their innate properties, were cultured using the hydrogel blanket, the original shapes and properties of the chondrocytes were maintained. The intrinsic properties could be recovered even in aged cells that had lost their original cell properties.A DCP culture method using a biomimetic hydrogel blanket provides cells with an adjustable physical pressure and a low-oxygen environment. Through this technique, we could maintain the original cellular phenotypes and intrinsic properties of human primary chondrocytes. The results of this study can be applied to other cells that require special pressure and oxygen concentration control to maintain their intrinsic properties. Additionally, this technique has the potential to be applied to the re-differentiation of cells that have lost their original properties.

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