1
|
Hwang Y, Goh M, Kim M, Tae G. Injectable and detachable heparin-based hydrogel micropatches for hepatic differentiation of hADSCs and their liver targeted delivery. Biomaterials 2018. [DOI: 10.1016/j.biomaterials.2018.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
2
|
Luan S, Hao R, Wei Y, Chen D, Fan B, Dong F, Guo W, Wang J, Chen J. A microfabricated 96-well wound-healing assay. Cytometry A 2017; 91:1192-1199. [PMID: 29156109 DOI: 10.1002/cyto.a.23286] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/23/2017] [Accepted: 11/01/2017] [Indexed: 01/09/2023]
Abstract
This article presents a microfabricated 96-well wound-healing assay enabling high-throughput measurement of cellular migration capabilities. Within each well, the middle area is the wound region, made of microfabricated gold surface with self-assembled PEG repellent for cell seeding. After the formation of a cellular confluent monolayer around the wound region, collagen solution was applied to form three-dimensional matrix to cover the PEG surface, initiating the wound-healing process. By interpreting the numbers of migrated cells into the wound regions as a function of specific stimuli with different concentrations, EC50 (half-maximal effective concentration) was obtained. Using H1299 as a model, values of EC50 were quantified as 8% and 160 ng/ml for fetal bovine serum and CXCL12, respectively. In addition, the values of EC50 were demonstrated not to be affected by variations in compositions of extracellular matrix and geometries of wounds, which can thus be regarded as an intrinsic marker. Furthermore, the migration capabilities of a second cell type (HeLa) were characterized by the developed wound-healing assay, producing EC50 of 2% when fetal bovine serum was used as the stimuli. These results validated the proposed high-throughput wound-healing assay, which may function as an enabling tool in studying cellular capabilities of migration and invasion. © 2017 International Society for Advancement of Cytometry.
Collapse
Affiliation(s)
- Shaoliang Luan
- Department of Vascular Surgery, Clinical Division of Surgery, Chinese PLA General Hospital, Beijing 100853, People's Republic of China
| | - Rui Hao
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Univesity of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yuanchen Wei
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Deyong Chen
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Univesity of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Beiyuan Fan
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Univesity of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Fengliang Dong
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
| | - Wei Guo
- Department of Vascular Surgery, Clinical Division of Surgery, Chinese PLA General Hospital, Beijing 100853, People's Republic of China
| | - Junbo Wang
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Univesity of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jian Chen
- State Key Laboratory of Transducer Technology, Institute of Electronics of the Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Univesity of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| |
Collapse
|
3
|
Abstract
Biosensors first appeared several decades ago to address the need for monitoring physiological parameters such as oxygen or glucose in biological fluids such as blood. More recently, a new wave of biosensors has emerged in order to provide more nuanced and granular information about the composition and function of living cells. Such biosensors exist at the confluence of technology and medicine and often strive to connect cell phenotype or function to physiological or pathophysiological processes. Our review aims to describe some of the key technological aspects of biosensors being developed for cell analysis. The technological aspects covered in our review include biorecognition elements used for biosensor construction, methods for integrating cells with biosensors, approaches to single-cell analysis, and the use of nanostructured biosensors for cell analysis. Our hope is that the spectrum of possibilities for cell analysis described in this review may pique the interest of biomedical scientists and engineers and may spur new collaborations in the area of using biosensors for cell analysis.
Collapse
Affiliation(s)
- Qing Zhou
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Kyungjin Son
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Ying Liu
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| |
Collapse
|
4
|
Shin DS, You J, Rahimian A, Vu T, Siltanen C, Ehsanipour A, Stybayeva G, Sutcliffe J, Revzin A. Photodegradable hydrogels for capture, detection, and release of live cells. Angew Chem Int Ed Engl 2014; 53:8221-4. [PMID: 24931301 PMCID: PMC4380505 DOI: 10.1002/anie.201404323] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 12/29/2022]
Abstract
Cells may be captured and released using a photodegradable hydrogel (photogel) functionalized with antibodies. Photogel substrates were used to first isolate human CD4 or CD8 T-cells from a heterogeneous cell suspension and then to release desired cells or groups of cells by UV-induced photodegradation. Flow cytometry analysis of the retrieved cells revealed approximately 95% purity of CD4 and CD8 T-cells, suggesting that this substrate had excellent specificity. To demonstrate the possibility of sorting cells according to their function, photogel substrates that were functionalized with anti-CD4 and anti-TNF-α antibodies were prepared. Single cells captured and stimulated on such substrates were identified by the fluorescence "halo" after immunofluorescent staining and could be retrieved by site-specific exposure to UV light through a microscope objective. Overall, it was demonstrated that functional photodegradable hydrogels enable the capture, analysis, and sorting of live cells.
Collapse
Affiliation(s)
- Dong-Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Jungmok You
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Ali Rahimian
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Tam Vu
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Arshia Ehsanipour
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Gulnaz Stybayeva
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| |
Collapse
|
5
|
Shin DS, You J, Rahimian A, Vu T, Siltanen C, Ehsanipour A, Stybayeva G, Sutcliffe J, Revzin A. Photodegradable Hydrogels for Capture, Detection, and Release of Live Cells. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Gwon K, Kim M, Tae G. A biocompatible method of controlled retrieval of cell-encapsulating microgels from a culture plate. Integr Biol (Camb) 2014; 6:596-602. [DOI: 10.1039/c4ib00006d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
7
|
Siltanen C, Shin DS, Sutcliffe J, Revzin A. Micropatterned photodegradable hydrogels for the sorting of microbeads and cells. Angew Chem Int Ed Engl 2013; 52:9224-8. [PMID: 23868693 PMCID: PMC4370904 DOI: 10.1002/anie.201303965] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Indexed: 01/03/2023]
Affiliation(s)
- Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Dong-Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| |
Collapse
|
8
|
Siltanen C, Shin D, Sutcliffe J, Revzin A. Micropatterned Photodegradable Hydrogels for the Sorting of Microbeads and Cells. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303965] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Dong‐Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| |
Collapse
|
9
|
Mailloux S, Halámek J, Halámková L, Tokarev A, Minko S, Katz E. Biomolecular release triggered by glucose input – bioelectronic coupling of sensing and actuating systems. Chem Commun (Camb) 2013; 49:4755-7. [DOI: 10.1039/c3cc42027b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|