1
|
Wang Y, Wang Y, Wang X, Sun W, Yang F, Yao X, Pan T, Li B, Chu J. Label-free active single-cell encapsulation enabled by microvalve-based on-demand droplet generation and real-time image processing. Talanta 2024; 276:126299. [PMID: 38788384 DOI: 10.1016/j.talanta.2024.126299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/01/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Droplet microfluidics-based single-cell encapsulation is a critical technology that enables large-scale parallel single-cell analysis by capturing and processing thousands of individual cells. As the efficiency of passive single-cell encapsulation is limited by Poisson distribution, active single-cell encapsulation has been developed to theoretically ensure that each droplet contains one cell. However, existing active single-cell encapsulation technologies still face issues related to fluorescence labeling and low throughput. Here, we present an active single-cell encapsulation technique by using microvalve-based drop-on-demand technology and real-time image processing to encapsulate single cells with high throughput in a label-free manner. Our experiments demonstrated that the single-cell encapsulation system can encapsulate individual polystyrene beads with 96.3 % efficiency and HeLa cells with 94.9 % efficiency. The flow speed of cells in this system can reach 150 mm/s, resulting in a corresponding theoretical encapsulation throughput of 150 Hz. This technology has significant potential in various biomedical applications, including single-cell omics, secretion detection, and drug screening.
Collapse
Affiliation(s)
- Yiming Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China
| | - Yousu Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China
| | - Xiaojie Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China
| | - Wei Sun
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China
| | - Fengrui Yang
- MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Xuebiao Yao
- MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tingrui Pan
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215123, China
| | - Baoqing Li
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China.
| | - Jiaru Chu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230027, China
| |
Collapse
|
2
|
Kostecka A, Kalamon N, Skoniecka A, Koczkowska M, Skowron PM, Piotrowski A, Pikuła M. Adipose-derived mesenchymal stromal cells in clinical trials: Insights from single-cell studies. Life Sci 2024; 351:122761. [PMID: 38866216 DOI: 10.1016/j.lfs.2024.122761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/15/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024]
Abstract
Mesenchymal Stromal Cells (MSCs) offer tremendous potential for the treatment of various diseases and their healing properties have been explored in hundreds of clinical trials. These trails primarily focus on immunological and neurological disorders, as well as regenerative medicine. Adipose tissue is a rich source of mesenchymal stromal cells and methods to obtain and culture adipose-derived MSCs (AD-MSCs) have been well established. Promising results from pre-clinical testing of AD-MSCs activity prompted clinical trials that further led to the approval of AD-MSCs for the treatment of complex perianal fistulas in Crohn's disease and subcutaneous tissue defects. However, AD-MSC heterogeneity along with various manufacturing protocols or different strategies to boost their activity create the need for standardized quality control procedures and safety assessment of the intended cell product. High-resolution transcriptomic methods have been recently gaining attention, as they deliver insight into gene expression profiles of individual cells, helping to deconstruct cellular hierarchy and differentiation trajectories, and to understand cell-cell interactions within tissues. This article presents a comprehensive overview of completed clinical trials evaluating the safety and efficacy of AD-MSC treatment, together with current single-cell studies of human AD-MSC. Furthermore, our work emphasizes the increasing significance of single-cell research in elucidating the mechanisms of cellular action and predicting their therapeutic effects.
Collapse
Affiliation(s)
- Anna Kostecka
- Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland; 3P - Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland.
| | - Natalia Kalamon
- Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland.
| | - Aneta Skoniecka
- Laboratory of Tissue Engineering and Regenerative Medicine, Division of Embryology, Faculty of Medicine, Medical University of Gdansk, Dębinki 1, 80-211 Gdańsk, Poland.
| | - Magdalena Koczkowska
- Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland; 3P - Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland.
| | - Piotr M Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland.
| | - Arkadiusz Piotrowski
- Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland; 3P - Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland.
| | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Division of Embryology, Faculty of Medicine, Medical University of Gdansk, Dębinki 1, 80-211 Gdańsk, Poland.
| |
Collapse
|
3
|
Williamson HK, Mendes PM. An integrated perspective on measuring cytokines to inform CAR-T bioprocessing. Biotechnol Adv 2024; 75:108405. [PMID: 38997052 DOI: 10.1016/j.biotechadv.2024.108405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Chimeric antigen receptor (CAR)-T cells are emerging as a generation-defining therapeutic however their manufacture remains a major barrier to meeting increased market demand. Monitoring critical quality attributes (CQAs) and critical process parameters (CPPs) during manufacture would vastly enrich acquired information related to the process and product, providing feedback to enable real-time decision making. Here we identify specific CAR-T cytokines as value-adding analytes and discuss their roles as plausible CPPs and CQAs. High sensitivity sensing technologies which can be easily integrated into manufacture workflows are essential to implement real-time monitoring of these cytokines. We therefore present biosensors as enabling technologies and evaluate recent advancements in cytokine detection in cell cultures, offering promising translatability to CAR-T biomanufacture. Finally, we outline emerging sensing technologies with future promise, and provide an overall outlook on existing gaps to implementation and the optimal sensing platform to enable cytokine monitoring in CAR-T biomanufacture.
Collapse
Affiliation(s)
- Hannah K Williamson
- School of Chemical Engineering, University of Birmingham, Birmingham, B15 2TT, UK
| | - Paula M Mendes
- School of Chemical Engineering, University of Birmingham, Birmingham, B15 2TT, UK.
| |
Collapse
|
4
|
Brandi C, De Ninno A, Ruggiero F, Limiti E, Abbruzzese F, Trombetta M, Rainer A, Bisegna P, Caselli F. On the compatibility of single-cell microcarriers (nanovials) with microfluidic impedance cytometry. LAB ON A CHIP 2024; 24:2883-2892. [PMID: 38717432 DOI: 10.1039/d4lc00002a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
We investigate for the first time the compatibility of nanovials with microfluidic impedance cytometry (MIC). Nanovials are suspendable crescent-shaped single-cell microcarriers that enable specific cell adhesion, the creation of compartments for undisturbed cell growth and secretion, as well as protection against wall shear stress. MIC is a label-free single-cell technique that characterizes flowing cells based on their electrical fingerprints and it is especially targeted to cells that are naturally in suspension. Combining nanovial technology with MIC is intriguing as it would represent a robust framework for the electrical analysis of single adherent cells at high throughput. Here, as a proof-of-concept, we report the MIC analysis of mesenchymal stromal cells loaded in nanovials. The electrical analysis is supported by numerical simulations and validated by means of optical analysis. We demonstrate that the electrical diameter can discriminate among free cells, empty nanovials, cell-loaded nanovials, and clusters, thus grounding the foundation for the use of nanovials in MIC. Furthermore, we investigate the potentiality of MIC to assess the electrical phenotype of cells loaded in nanovials and we draw directions for future studies.
Collapse
Affiliation(s)
- Cristian Brandi
- Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, Rome, Italy.
| | - Adele De Ninno
- Italian National Research Council - Institute for Photonics and Nanotechnologies (CNR - IFN), Rome, Italy
| | - Filippo Ruggiero
- Italian National Research Council - Institute for Photonics and Nanotechnologies (CNR - IFN), Rome, Italy
| | - Emanuele Limiti
- Department of Engineering, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128, Rome, Italy
| | - Franca Abbruzzese
- Department of Engineering, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128, Rome, Italy
| | - Marcella Trombetta
- Department of Science and Technology for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128, Rome, Italy
| | - Alberto Rainer
- Department of Engineering, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128, Rome, Italy
- National Research Council - Institute of Nanotechnology (CNR-NANOTEC), c/o Campus Ecotekne, 73100 Lecce, Italy
| | - Paolo Bisegna
- Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, Rome, Italy.
| | - Federica Caselli
- Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, Rome, Italy.
| |
Collapse
|
5
|
Ghosh R, Arnheim A, van Zee M, Shang L, Soemardy C, Tang RC, Mellody M, Baghdasarian S, Sanchez Ochoa E, Ye S, Chen S, Williamson C, Karunaratne A, Di Carlo D. Lab on a Particle Technologies. Anal Chem 2024; 96:7817-7839. [PMID: 38650433 PMCID: PMC11112544 DOI: 10.1021/acs.analchem.4c01510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/14/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Affiliation(s)
- Rajesh Ghosh
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Alyssa Arnheim
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Mark van Zee
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Lily Shang
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Citradewi Soemardy
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Rui-Chian Tang
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Michael Mellody
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Sevana Baghdasarian
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Edwin Sanchez Ochoa
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Shun Ye
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Siyu Chen
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Cayden Williamson
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Amrith Karunaratne
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Dino Di Carlo
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
- Jonsson
Comprehensive Cancer Center, University
of California, Los Angeles, Los Angeles, California 90095, United States
- Department
of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
- California
NanoSystems Institute, Los Angeles, California 90095, United States
| |
Collapse
|
6
|
Udani S, Langerman J, Koo D, Baghdasarian S, Cheng B, Kang S, Soemardy C, de Rutte J, Plath K, Di Carlo D. Associating growth factor secretions and transcriptomes of single cells in nanovials using SEC-seq. NATURE NANOTECHNOLOGY 2024; 19:354-363. [PMID: 38082117 DOI: 10.1038/s41565-023-01560-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/31/2023] [Indexed: 01/23/2024]
Abstract
Cells secrete numerous bioactive molecules that are essential for the function of healthy organisms. However, scalable methods are needed to link individual cell secretions to their transcriptional state over time. Here, by developing and using secretion-encoded single-cell sequencing (SEC-seq), which exploits hydrogel particles with subnanolitre cavities (nanovials) to capture individual cells and their secretions, we simultaneously measured the secretion of vascular endothelial growth factor A (VEGF-A) and the transcriptome for thousands of individual mesenchymal stromal cells. Our data indicate that VEGF-A secretion is heterogeneous across the cell population and is poorly correlated with the VEGFA transcript level. The highest VEGF-A secretion occurs in a subpopulation of mesenchymal stromal cells characterized by a unique gene expression signature comprising a surface marker, interleukin-13 receptor subunit alpha 2 (IL13RA2), which allowed the enrichment of this subpopulation. SEC-seq enables the identification of gene signatures linked to specific secretory states, facilitating mechanistic studies, the isolation of secretory subpopulations and the development of means to modulate cellular secretion.
Collapse
Affiliation(s)
- Shreya Udani
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Justin Langerman
- Department of Biological Chemistry, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Doyeon Koo
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Sevana Baghdasarian
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Brian Cheng
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Simran Kang
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Citradewi Soemardy
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA
| | | | - Kathrin Plath
- Department of Biological Chemistry, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
- Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, CA, USA.
- Eli and Edythe Broad Stem Cell Research Center, University of California Los Angeles, Los Angeles, CA, USA.
| | - Dino Di Carlo
- Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA.
- Partillion Bioscience, Los Angeles, CA, USA.
- Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, CA, USA.
- Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA, USA.
- California NanoSystems Institute (CNSI), University of California Los Angeles, Los Angeles, CA, USA.
| |
Collapse
|
7
|
Ding Z, Jiang M, Qian J, Gu D, Bai H, Cai M, Yao D. Role of transforming growth factor-β in peripheral nerve regeneration. Neural Regen Res 2024; 19:380-386. [PMID: 37488894 PMCID: PMC10503632 DOI: 10.4103/1673-5374.377588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/29/2023] [Accepted: 04/27/2023] [Indexed: 07/26/2023] Open
Abstract
Injuries caused by trauma and neurodegenerative diseases can damage the peripheral nervous system and cause functional deficits. Unlike in the central nervous system, damaged axons in peripheral nerves can be induced to regenerate in response to intrinsic cues after reprogramming or in a growth-promoting microenvironment created by Schwann cells. However, axon regeneration and repair do not automatically result in the restoration of function, which is the ultimate therapeutic goal but also a major clinical challenge. Transforming growth factor (TGF) is a multifunctional cytokine that regulates various biological processes including tissue repair, embryo development, and cell growth and differentiation. There is accumulating evidence that TGF-β family proteins participate in peripheral nerve repair through various factors and signaling pathways by regulating the growth and transformation of Schwann cells; recruiting specific immune cells; controlling the permeability of the blood-nerve barrier, thereby stimulating axon growth; and inhibiting remyelination of regenerated axons. TGF-β has been applied to the treatment of peripheral nerve injury in animal models. In this context, we review the functions of TGF-β in peripheral nerve regeneration and potential clinical applications.
Collapse
Affiliation(s)
- Zihan Ding
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jiaxi Qian
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Dandan Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Huiyuan Bai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Min Cai
- Medical School of Nantong University, Nantong, Jiangsu Province, China
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| |
Collapse
|
8
|
Foley CR, Swan SL, Swartz MA. Engineering Challenges and Opportunities in Autologous Cellular Cancer Immunotherapy. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:188-198. [PMID: 38166251 PMCID: PMC11155266 DOI: 10.4049/jimmunol.2300642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 10/18/2023] [Indexed: 01/04/2024]
Abstract
The use of a patient's own immune or tumor cells, manipulated ex vivo, enables Ag- or patient-specific immunotherapy. Despite some clinical successes, there remain significant barriers to efficacy, broad patient population applicability, and safety. Immunotherapies that target specific tumor Ags, such as chimeric Ag receptor T cells and some dendritic cell vaccines, can mount robust immune responses against immunodominant Ags, but evolving tumor heterogeneity and antigenic downregulation can drive resistance. In contrast, whole tumor cell vaccines and tumor lysate-loaded dendritic cell vaccines target the patient's unique tumor antigenic repertoire without prior neoantigen selection; however, efficacy can be weak when lower-affinity clones dominate the T cell pool. Chimeric Ag receptor T cell and tumor-infiltrating lymphocyte therapies additionally face challenges related to genetic modification, T cell exhaustion, and immunotoxicity. In this review, we highlight some engineering approaches and opportunities to these challenges among four classes of autologous cell therapies.
Collapse
Affiliation(s)
- Colleen R. Foley
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois
| | - Sheridan L. Swan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois
| | - Melody A. Swartz
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois
- Committee on Immunology, University of Chicago, Chicago, Illinois
- Ben May Department of Cancer Research, University of Chicago, Chicago, Illinois
| |
Collapse
|
9
|
Chen K, Wang Z. A Micropillar Array Based Microfluidic Device for Rare Cell Detection and Single-Cell Proteomics. Methods Protoc 2023; 6:80. [PMID: 37736963 PMCID: PMC10514859 DOI: 10.3390/mps6050080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/23/2023] Open
Abstract
Advancements in single-cell-related technologies have opened new possibilities for analyzing rare cells, such as circulating tumor cells (CTCs) and rare immune cells. Among these techniques, single-cell proteomics, particularly single-cell mass spectrometric analysis (scMS), has gained significant attention due to its ability to directly measure transcripts without the need for specific reagents. However, the success of single-cell proteomics relies heavily on efficient sample preparation, as protein loss in low-concentration samples can profoundly impact the analysis. To address this challenge, an effective handling system for rare cells is essential for single-cell proteomic analysis. Herein, we propose a microfluidics-based method that offers highly efficient isolation, detection, and collection of rare cells (e.g., CTCs). The detailed fabrication process of the micropillar array-based microfluidic device is presented, along with its application for CTC isolation, identification, and collection for subsequent proteomic analysis.
Collapse
Affiliation(s)
- Kangfu Chen
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208, USA;
- Chan Zuckerberg Biohub Chicago, Chicago, IL 60607, USA
| | - Zongjie Wang
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208, USA;
- Chan Zuckerberg Biohub Chicago, Chicago, IL 60607, USA
| |
Collapse
|
10
|
Li S, Coffinier Y, Lagadec C, Cleri F, Nishiguchi K, Fujiwara A, Kim SH, Clément N. Single-Cell Electrochemical Aptasensor Array. ACS Sens 2023; 8:2921-2926. [PMID: 37431846 DOI: 10.1021/acssensors.3c00570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Despite several demonstrations of electrochemical devices with limits of detection (LOD) of 1 cell/mL, the implementation of single-cell bioelectrochemical sensor arrays has remained elusive due to the challenges of scaling up. In this study, we show that the recently introduced nanopillar array technology combined with redox-labeled aptamers targeting epithelial cell adhesion molecule (EpCAM) is perfectly suited for such implementation. Combining nanopillar arrays with microwells determined for single cell trapping directly on the sensor surface, single target cells are successfully detected and analyzed. This first implementation of a single-cell electrochemical aptasensor array, based on Brownian-fluctuating redox species, opens new opportunities for large-scale implementation and statistical analysis of early cancer diagnosis and cancer therapy in clinical settings.
Collapse
Affiliation(s)
- Shuo Li
- IIS, LIMMS/CNRS-IIS IRL2820, The Univ. of Tokyo 4-6-1 Komaba, Meguro-ku 153-8505, Tokyo, Japan
| | - Yannick Coffinier
- IEMN, CNRS UMR8520, Univ. Lille Avenue Poincare, BP 60069, Villeneuve d'Ascq cedex 59652, France
| | - Chann Lagadec
- Univ. Lille, CNRS, Inserm, CHU Lille, Centre Oscar Lambret, UMR9020 - UMR-S 1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille F-59000, France
| | - Fabrizio Cleri
- IEMN, CNRS UMR8520, Univ. Lille Avenue Poincare, BP 60069, Villeneuve d'Ascq cedex 59652, France
| | - Katsuhiko Nishiguchi
- NTT Basic Research Laboratories, NTT Corporation, 3-1, Morinosato-Wakamiya, Atsugi-shi 243-0198, Japan
| | - Akira Fujiwara
- NTT Basic Research Laboratories, NTT Corporation, 3-1, Morinosato-Wakamiya, Atsugi-shi 243-0198, Japan
| | - Soo Hyeon Kim
- IIS, LIMMS/CNRS-IIS IRL2820, The Univ. of Tokyo 4-6-1 Komaba, Meguro-ku 153-8505, Tokyo, Japan
| | - Nicolas Clément
- IIS, LIMMS/CNRS-IIS IRL2820, The Univ. of Tokyo 4-6-1 Komaba, Meguro-ku 153-8505, Tokyo, Japan
| |
Collapse
|
11
|
Kim JH, Afridi R, Lee WH, Suk K. Analyzing the glial proteome in Alzheimer's disease. Expert Rev Proteomics 2023; 20:197-209. [PMID: 37724426 DOI: 10.1080/14789450.2023.2260955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/18/2023] [Indexed: 09/20/2023]
Abstract
INTRODUCTION Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive cognitive decline, memory loss, and changes in behavior. Accumulating evidence indicates that dysfunction of glial cells, including astrocytes, microglia, and oligodendrocytes, may contribute to the development and progression of AD. Large-scale analysis of glial proteins sheds light on their roles in cellular processes and diseases. In AD, glial proteomics has been utilized to understand glia-based pathophysiology and identify potential biomarkers and therapeutic targets. AREA COVERED In this review, we provide an updated overview of proteomic analysis of glia in the context of AD. Additionally, we discuss current challenges in the field, involving glial complexity and heterogeneity, and describe some cutting-edge proteomic technologies to address them. EXPERT OPINION Unbiased comprehensive analysis of glial proteomes aids our understanding of the molecular and cellular mechanisms of AD pathogenesis. These investigations highlight the crucial role of glial cells and provide novel insights into the mechanisms of AD pathology. A deeper understanding of the AD-related glial proteome could offer a repertoire of potential biomarkers and therapeutics. Further technical advancement of glial proteomics will enable us to identify proteins within individual cells and specific cell types, thus significantly enhancing our comprehension of AD pathogenesis.
Collapse
Affiliation(s)
- Jong-Heon Kim
- Brain Science & Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
| | - Ruqayya Afridi
- Department of Pharmacology, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Won-Ha Lee
- Brain Science & Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Kyoungho Suk
- Brain Science & Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
- Department of Pharmacology, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| |
Collapse
|
12
|
Cheng RYH, de Rutte J, Ito CEK, Ott AR, Bosler L, Kuo WY, Liang J, Hall BE, Rawlings DJ, Di Carlo D, James RG. SEC-seq: association of molecular signatures with antibody secretion in thousands of single human plasma cells. Nat Commun 2023; 14:3567. [PMID: 37322036 PMCID: PMC10272111 DOI: 10.1038/s41467-023-39367-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 06/07/2023] [Indexed: 06/17/2023] Open
Abstract
The secreted products of cells drive many functions in vivo; however, methods to link this functional information to surface markers and transcriptomes have been lacking. By accumulating secretions close to secreting cells held within cavity-containing hydrogel nanovials, we demonstrate workflows to analyze the amount of IgG secreted from single human B cells and link this information to surface markers and transcriptomes from the same cells. Measurements using flow cytometry and imaging flow cytometry corroborate the association between IgG secretion and CD38/CD138. By using oligonucleotide-labeled antibodies we find that upregulation of pathways for protein localization to the endoplasmic reticulum and mitochondrial oxidative phosphorylation are most associated with high IgG secretion, and uncover surrogate plasma cell surface markers (e.g., CD59) defined by the ability to secrete IgG. Altogether, this method links quantity of secretion with single-cell sequencing (SEC-seq) and enables researchers to fully explore the links between genome and function, laying the foundation for discoveries in immunology, stem cell biology, and beyond.
Collapse
Affiliation(s)
- Rene Yu-Hong Cheng
- Center of Immunotherapy and Immunity, Seattle Children Research Institute, Seattle, WA, 98101, USA
- Molecular Engineering and Science Institute, University of Washington, Seattle, WA, 98195, USA
| | | | - Cade Ellis K Ito
- Center of Immunotherapy and Immunity, Seattle Children Research Institute, Seattle, WA, 98101, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Andee R Ott
- Center of Immunotherapy and Immunity, Seattle Children Research Institute, Seattle, WA, 98101, USA
| | - Lucie Bosler
- Partillion Bioscience, Los Angeles, CA, 90095, USA
| | - Wei-Ying Kuo
- Partillion Bioscience, Los Angeles, CA, 90095, USA
| | - Jesse Liang
- Partillion Bioscience, Los Angeles, CA, 90095, USA
| | | | - David J Rawlings
- Center of Immunotherapy and Immunity, Seattle Children Research Institute, Seattle, WA, 98101, USA
- Department of Immunology, University of Washington, Seattle, WA, 98195, USA
- Departments of Pediatrics, University of Washington, Seattle, WA, 98195, USA
| | - Dino Di Carlo
- Partillion Bioscience, Los Angeles, CA, 90095, USA.
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, CA, 90095, USA.
- Department of Mechanical and Aerospace Engineering, Los Angeles, CA, 90095, USA.
- California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA, 90095, USA.
| | - Richard G James
- Center of Immunotherapy and Immunity, Seattle Children Research Institute, Seattle, WA, 98101, USA.
- Molecular Engineering and Science Institute, University of Washington, Seattle, WA, 98195, USA.
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA.
- Departments of Pediatrics, University of Washington, Seattle, WA, 98195, USA.
- Department of Pharmacology, University of Washington, Seattle, WA, 98195, USA.
- Brotman-Baty Institute for Precision Medicine, Seattle, WA, 98195, USA.
| |
Collapse
|
13
|
Gantz M, Neun S, Medcalf EJ, van Vliet LD, Hollfelder F. Ultrahigh-Throughput Enzyme Engineering and Discovery in In Vitro Compartments. Chem Rev 2023; 123:5571-5611. [PMID: 37126602 PMCID: PMC10176489 DOI: 10.1021/acs.chemrev.2c00910] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Novel and improved biocatalysts are increasingly sourced from libraries via experimental screening. The success of such campaigns is crucially dependent on the number of candidates tested. Water-in-oil emulsion droplets can replace the classical test tube, to provide in vitro compartments as an alternative screening format, containing genotype and phenotype and enabling a readout of function. The scale-down to micrometer droplet diameters and picoliter volumes brings about a >107-fold volume reduction compared to 96-well-plate screening. Droplets made in automated microfluidic devices can be integrated into modular workflows to set up multistep screening protocols involving various detection modes to sort >107 variants a day with kHz frequencies. The repertoire of assays available for droplet screening covers all seven enzyme commission (EC) number classes, setting the stage for widespread use of droplet microfluidics in everyday biochemical experiments. We review the practicalities of adapting droplet screening for enzyme discovery and for detailed kinetic characterization. These new ways of working will not just accelerate discovery experiments currently limited by screening capacity but profoundly change the paradigms we can probe. By interfacing the results of ultrahigh-throughput droplet screening with next-generation sequencing and deep learning, strategies for directed evolution can be implemented, examined, and evaluated.
Collapse
Affiliation(s)
- Maximilian Gantz
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Rd, Cambridge CB2 1GA, U.K
| | - Stefanie Neun
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Rd, Cambridge CB2 1GA, U.K
| | - Elliot J Medcalf
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Rd, Cambridge CB2 1GA, U.K
| | - Liisa D van Vliet
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Rd, Cambridge CB2 1GA, U.K
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Rd, Cambridge CB2 1GA, U.K
| |
Collapse
|