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Lee E, Choi HK, Kwon Y, Lee KB. Real-Time, Non-Invasive Monitoring of Neuronal Differentiation Using Intein-Enabled Fluorescence Signal Translocation in Genetically Encoded Stem Cell-Based Biosensors. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2400394. [PMID: 39308638 PMCID: PMC11412434 DOI: 10.1002/adfm.202400394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Indexed: 09/25/2024]
Abstract
Real-time and non-invasive monitoring of neuronal differentiation will help increase our understanding of neuronal development and help develop regenerative stem cell therapies for neurodegenerative diseases. Traditionally, reverse transcription-polymerase chain reaction (RT-PCR), western blotting, and immunofluorescence (IF) staining have been widely used to investigate stem cell differentiation; however, their limitations include endpoint analysis, invasive nature of monitoring, and lack of single-cell-level resolution. Several limitations hamper current approaches to studying neural stem cell (NSC) differentiation. In particular, fixation and staining procedures can introduce artificial changes in cellular morphology, hindering our ability to accurately monitor the progression of the process and fully understand its functional aspects, particularly those related to cellular connectivity and neural network formation. Herein, we report a novel approach to monitor neuronal differentiation of NSCs non-invasively in real-time using cell-based biosensors (CBBs). Our research efforts focused on utilizing intein-mediated protein engineering to design and construct a highly sensitive biosensor capable of detecting a biomarker of neuronal differentiation, hippocalcin. Hippocalcin is a critical protein involved in neurogenesis, and the CBB functions by translocating a fluorescence signal to report the presence of hippocalcin externally. To construct the hippocalcin sensor proteins, hippocalcin bioreceptors, AP2 and glutamate ionotropic receptor AMPA-type subunit 2 (GRIA2), were fused to each split-intein carrying split-nuclear localization signal (NLS) peptides, respectively, and a fluorescent protein was introduced as a reporter. Protein splicing (PS) was triggered in the presence of hippocalcin to generate functional signal peptides, which promptly translocated the fluorescence signal to the nucleus. The stem cell-based biosensor showed fluorescence signal translocation only upon neuronal differentiation. Undifferentiated stem cells or cells that had differentiated into astrocytes or oligodendrocytes did not show fluorescence signal translocation. The number of differentiated neurons was consistent with that measured by conventional IF staining. Furthermore, this approach allowed for the monitoring of neuronal differentiation at an earlier stage than that detected using conventional approaches, and the translocation of fluorescence signal was monitored before the noticeable expression of class III β-tubulin (TuJ1), an early neuronal differentiation marker. We believe that these novel CBBs offer an alternative to current techniques by capturing the dynamics of differentiation progress at the single-cell level and by providing a tool to evaluate how NSCs efficiently differentiate into specific cell types, particularly neurons.
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Affiliation(s)
- Euiyeon Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
- Department of Biomedical Engineering, Dongguk University, Seoul 04620, Korea
| | - Hye Kyu Choi
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Youngeun Kwon
- Department of Biomedical Engineering, Dongguk University, Seoul 04620, Korea
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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Mandal M, Shukla J, Datta B, Dutta G. Role of Biosensors in Regenerative Therapeutics: Past, Present, and Future Prospects. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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3
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Guette-Marquet S, Roques C, Bergel A. Direct electrochemical detection of trans-plasma membrane electron transfer: A possible alternative pathway for cell respiration. Biosens Bioelectron 2022; 220:114896. [DOI: 10.1016/j.bios.2022.114896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 11/09/2022]
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4
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Nasrollahpour H, Khalilzadeh B, Naseri A, Yousefi H, Erk N, Rahbarghazi R. Electrochemical biosensors for stem cell analysis; applications in diagnostics, differentiation and follow-up. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Guette-Marquet S, Basseguy R, Roques C, Bergel A. The electrochemical potential is a key parameter for cell adhesion and proliferation on carbon surface. Bioelectrochemistry 2022; 144:108045. [PMID: 35016068 DOI: 10.1016/j.bioelechem.2021.108045] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/26/2021] [Accepted: 12/22/2021] [Indexed: 01/05/2023]
Abstract
The Nernst potential of the support/cell interface is suspected to play a key role in cell adhesion and proliferation. However, the studies that have addressed this topic have generally varied the electrochemical potential of the interface by comparing different materials or by varying the chemical composition of the surface coating. It is consequently hard to definitively separate the actual effect of the potential from possible side-effects due to differences in the surface composition or topography. Here, a 3-electrode set-up was used to apply different values of potential to identical carbon electrodes. Potentials were applied in the range -200 to 400 mV vs. silver pseudo-reference (SPR), i.e. 90 to 690 mV/SHE, to screen-printed carbon electrodes used to grow Vero or Raw 264.7 cell lines. Values up to 200 mV/SPR prohibited cell adhesion and even caused detachment of cells that were previously adhered. The value of 400 mV/DRP allowed cell adhesion and proliferation, leading to confluent and sometimes very compact mats. The zero charge potential, measured around 200 mV/DRP, showed that the drastic effect of the applied potential was probably due to the negative/positive switch of the surface charge.
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Affiliation(s)
- Simon Guette-Marquet
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Faculté des Sciences Pharmaceutiques, 35 chemin des maraîchers, 31062 Toulouse cedex 4, France
| | - Régine Basseguy
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, 4 allée Emile Monso, 31432 Toulouse, France
| | - Christine Roques
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Faculté des Sciences Pharmaceutiques, 35 chemin des maraîchers, 31062 Toulouse cedex 4, France
| | - Alain Bergel
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, 4 allée Emile Monso, 31432 Toulouse, France.
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Yoon J, Shin M, Kim D, Lim J, Kim HW, Kang T, Choi JW. Bionanohybrid composed of metalloprotein/DNA/MoS 2/peptides to control the intracellular redox states of living cells and its applicability as a cell-based biomemory device. Biosens Bioelectron 2022; 196:113725. [PMID: 34678652 DOI: 10.1016/j.bios.2021.113725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/17/2021] [Indexed: 12/13/2022]
Abstract
The development of cell-based bioelectronic devices largely depends on the direct control of intracellular redox states. However, most related studies have focused on the accurate measurement of electrical signals from living cells, whereas direct intracellular state control remains largely unexplored. Here, we developed a biocompatible transmembranal bionanohybrid structure composed of a recombinant metalloprotein, DNA, molybdenum disulfide nanoparticles (MoS2), and peptides to control intracellular redox states, which can be used as a cell-based biomemory device. Using the capacitance of MoS2 located inside the cell, the bionanohybrid controled the intracellular redox states of living cells by recording and extracting intracellular charges, which inturn was achieved by activating (writing) and deactivating (erasing) the cells. As a proof of concept, cell-based biomemory functions including writing, reading, and erasing were successfully demonstrated and confirmed via electrochemical methods and patch-clamp analyses, resulting in the development of the first in vitro cell-based biomemory device. This newly developed bionanohybrid provides a novel approach to control cellular redox states for cell-based bioelectronic applications, and can be applicable in a wide range of biological fields including bioelectronic medicine and intracellular redox status regulation.
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Affiliation(s)
- Jinho Yoon
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Minkyu Shin
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Dongyeon Kim
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Joungpyo Lim
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Hyun-Woong Kim
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Taewook Kang
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea.
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7
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Chan SSY, Lee D, Meivita MP, Li L, Tan YS, Bajalovic N, Loke DK. Ultrasensitive two-dimensional material-based MCF-7 cancer cell sensor driven by perturbation processes. NANOSCALE ADVANCES 2021; 3:6974-6983. [PMID: 36132361 PMCID: PMC9419592 DOI: 10.1039/d1na00614b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/13/2021] [Indexed: 06/15/2023]
Abstract
Changes in lipid composition and structure during cell development can be markers for cell apoptosis or various diseases such as cancer. Although traditional fluorescence techniques utilising molecular probes have been studied, these methods are limited in studying these micro-changes as they require complex probe preparation and cannot be reused, making cell monitoring and detection challenging. Here, we developed a direct current (DC) resistance sensor based on two-dimensional (2D) molybdenum disulfide (MoS2) nanosheets to enable cancer cell-specific detection dependent on micro-changes in the cancer cell membrane. Atomistic molecular dynamics (MD) simulations were used to study the interaction between 2D MoS2 and cancer lipid bilayer systems, and revealed that previously unconsidered perturbations in the lipid bilayer can cause an increase in resistance. Under an applied DC sweep, we observed an increase in resistance when cancer cells were incubated with the nanosheets. Furthermore, a correlation was observed between the resistance and breast cancer epithelial cell (MCF-7) population, illustrating a cell population-dependent sensitivity of our method. Our method has a detection limit of ∼3 × 103 cells, below a baseline of ∼1 × 104 cells for the current state-of-the-art electrical-based biosensors using an adherent monolayer with homogenous cells. This combination of a unique 2D material and electrical resistance framework represents a promising approach for the early detection of cancerous cells and to reduce the risk of post-surgery cancer recurrence.
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Affiliation(s)
- Sophia S Y Chan
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
| | - Denise Lee
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
| | - Maria Prisca Meivita
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
| | - Lunna Li
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
| | - Yaw Sing Tan
- Bioinformatics Institute, Agency for Science, Technology and Research (ASTAR) Singapore 138671 Singapore
| | - Natasa Bajalovic
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
| | - Desmond K Loke
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design Singapore 487372 Singapore
- Office of Innovation, Changi General Hospital Singapore 529889 Singapore
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Nihad M, Shenoy P S, Bose B. Cell therapy research for Diabetes: Pancreatic β cell differentiation from pluripotent stem cells. Diabetes Res Clin Pract 2021; 181:109084. [PMID: 34673084 DOI: 10.1016/j.diabres.2021.109084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 12/16/2022]
Abstract
Human pluripotent stem cells (PSCs), both embryonic and induced pluripotent stem cells (iPSCs), have been differentiated into pancreatic β isletsin vitrofor more than a decade. The idea is to get enough β cells for cell transplantation for diabetics. Finding a standard cell therapy for diabetes is essential because of the logarithmic increase in the global population of people with diabetes and the insufficient availability of the human cadaveric pancreas. Moreover, with better insights into developmental biology, thein vitroβ cell differentiation protocols have depended on thein vivoβ cell organogenesis. Various protocols for pancreatic β cell differentiation have been developed. Such protocols are based on the modulation of cell signalling pathways with growth factors, small molecules, RNAi approaches, directed differentiation using transcription factors, genome editing. Growth factor free differentiation protocols, epigenetic modulations, 3D differentiation approaches, and encapsulation strategies have also been reported for better glycemic control and endocrine modulations. Here, we have reviewed various aforementionedin vitroβ cell differentiation protocols from human PSCs, their respective comparisons, challenges, past, present, and future. The literature has been reviewed primarily from PubMed from the year 2000 till date using the mentioned keywords.
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Affiliation(s)
- Muhammad Nihad
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Pincode-575 018, Karnataka, India
| | - Sudheer Shenoy P
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Pincode-575 018, Karnataka, India
| | - Bipasha Bose
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Pincode-575 018, Karnataka, India.
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9
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Hur W, Son SE, Kim SN, Seong GH. Cell-based electrochemical cytosensor for rapid and sensitive evaluation of the anticancer effects of saponin on human malignant melanoma cells. Bioelectrochemistry 2021; 140:107813. [PMID: 33848876 DOI: 10.1016/j.bioelechem.2021.107813] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/25/2021] [Accepted: 03/28/2021] [Indexed: 12/25/2022]
Abstract
Discovering new anticancer agents and analyzing their activities is a vital part of drug development, but it requires a huge amount of time and resources, leading to the increasing demands for more-effective techniques. Herein, a novel and simple cell-based electrochemical biosensor, referred to as a cytosensor, was proposed to investigate the electrochemical behavior of human skin malignant melanoma (SK-MEL28) cells and the anticancer effect of saponin on cell viability. To enhance both electrocatalytic properties and biocompatibility, gold nanoparticles were electrochemically deposited onto a conductive substrate, and poly-L-lysine was further added to the electrode surface. Electric signals from SK-MEL28 cells on the electrodes were obtained from cyclic voltammetry and differential pulse voltammetry. The cathodic peak current was proportional to the cell viability and showed a detection range of 2,880-40,000 cells per device with an excellent linear cell number-intensity relationship (R2= 0.9952). Furthermore, the anticancer effect of saponin on SK-MEL28 cells was clearly established at concentrations higher than 20 μM, which was highly consistent with conventional assays. Moreover, the developed electrochemical cytosensor for evaluating anticancer effects enabled rapid (<2 min), sensitive (LOQ: 2,880cells/device), and non-invasive measurements, thus providing a new avenue for assessing the anticancer drugs in vitro.
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Affiliation(s)
- Won Hur
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea
| | - Seong Eun Son
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea
| | - Seong Nyeon Kim
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea
| | - Gi Hun Seong
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea.
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Suhito IR, Kang ES, Kim DS, Baek S, Park SJ, Moon SH, Luo Z, Lee D, Min J, Kim TH. High density gold nanostructure composites for precise electrochemical detection of human embryonic stem cells in cell mixture. Colloids Surf B Biointerfaces 2019; 180:384-392. [PMID: 31082776 DOI: 10.1016/j.colsurfb.2019.04.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 04/18/2019] [Accepted: 04/29/2019] [Indexed: 01/10/2023]
Abstract
Precise detection of undifferentiated human pluripotent stem cells (hPSCs) and their entire subsequent elimination are incredibly important in preventing teratoma formations after transplantation. Recently, electrochemical sensing platforms have demonstrated immense potential as a new tool to detect remaining hPSCs in label-free and non-destructive manner. Nevertheless, one of the critical huddles of this electrochemical sensing approach is its low sensitivity since even low concentrations of remaining hPSCs were reported to form teratoma once transplanted. To address this issue, in this study, we report an engineering-based approach to improve the sensitivity of electrochemical sensing platform for hPSC detection. By optimizing the density of gold nanostructure and the matrigel concentration to improve both electro-catalytic property and biocompatibility, the sensitivity of the developed platform toward hESCs detection could reach 12,500 cells/chip, which is close to the known critical concentration of hPSCs (˜10,000 cells) that induce teratoma formation in vivo. Remarkably, the electrochemical signals were not detectable from other types of stem cell-derived endothelial cells (CB-EPCs) even at high concentrations of CB-EPCs (40,000 cells/chip), proving the high selectivity of the developed platform toward hPSC detection. Hence, the developed platform could be highly useful to solve the safety issues that are related with clinical application of hPSC-derived cells.
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Affiliation(s)
- Intan Rosalina Suhito
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Ee-Seul Kang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Da-Seul Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Seungho Baek
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Soon-Jung Park
- Department of Medicine, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Sung-Hwan Moon
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Donghyun Lee
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Junhong Min
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea.
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea; Integrative Research Center for Two-Dimensional Functional Materials, Institute of Interdisciplinary Convergence Research, Chung-Ang University, Seoul 06974, Republic of Korea.
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11
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Nanobiosensing Platforms for Real-Time and Non-Invasive Monitoring of Stem Cell Pluripotency and Differentiation. SENSORS 2018; 18:s18092755. [PMID: 30134637 PMCID: PMC6163950 DOI: 10.3390/s18092755] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 01/05/2023]
Abstract
Breakthroughs in the biomedical and regenerative therapy fields have led to the influential ability of stem cells to differentiate into specific types of cells that enable the replacement of injured tissues/organs in the human body. Non-destructive identification of stem cell differentiation is highly necessary to avoid losses of differentiated cells, because most of the techniques generally used as confirmation tools for the successful differentiation of stem cells can result in valuable cells becoming irrecoverable. Regarding this issue, recent studies reported that both Raman spectroscopy and electrochemical sensing possess excellent characteristics for monitoring the behavior of stem cells, including differentiation. In this review, we focus on numerous studies that have investigated the detection of stem cell pluripotency and differentiation in non-invasive and non-destructive manner, mainly by using the Raman and electrochemical methods. Through this review, we present information that could provide scientific or technical motivation to employ or further develop these two techniques for stem cell research and its application.
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12
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Chan SSY, Tan YS, Wu KX, Cheung C, Loke DK. Ultra-High Signal Detection of Human Embryonic Stem Cells Driven by Two-Dimensional Materials. ACS APPLIED BIO MATERIALS 2018; 1:210-215. [PMID: 35016385 DOI: 10.1021/acsabm.8b00085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We observed a unique bioelectric signal of human embryonic stem cells using direct current-voltage measurements facilitated by few-layered 2D-MoS2 sheets. A 1.828 mA cell signal was achieved (2 orders of magnitude higher than previous electrical-based detection methods) as well as multiple cell reading cycles demonstrating I ∼ 1.9 mA. Native stem cell proliferation, viability, and pluripotency were preserved. Molecular dynamics simulations elucidated the origin of the 2D-MoS2 sheet-assisted increase in current flow. This paves the way for the development of a broadly applicable, fast, and damage-free stem cell detection method capable of identifying pluripotency with virtually any complementary-metal-oxide-semiconductor circuits.
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Affiliation(s)
- Sophia S Y Chan
- Science Faculty, Singapore University of Technology and Design, Singapore 487372, Singapore
| | - Yaw Sing Tan
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore
| | - Kan-Xing Wu
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Christine Cheung
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore.,Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
| | - Desmond K Loke
- Science Faculty, Singapore University of Technology and Design, Singapore 487372, Singapore
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Jeong HC, Cho SJ, Lee MO, Cha HJ. Technical approaches to induce selective cell death of pluripotent stem cells. Cell Mol Life Sci 2017; 74:2601-2611. [PMID: 28246701 PMCID: PMC11107638 DOI: 10.1007/s00018-017-2486-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/24/2017] [Accepted: 02/06/2017] [Indexed: 01/24/2023]
Abstract
Despite the recent promising results of clinical trials using human pluripotent stem cell (hPSC)-based cell therapies for age-related macular degeneration (AMD), the risk of teratoma formation resulting from residual undifferentiated hPSCs remains a serious and critical hurdle for broader clinical implementation. To mitigate the tumorigenic risk of hPSC-based cell therapy, a variety of approaches have been examined to ablate the undifferentiated hPSCs based on the unique molecular properties of hPSCs. In the present review, we offer a brief overview of recent attempts at selective elimination of undifferentiated hPSCs to decrease the risk of teratoma formation in hPSC-based cell therapy.
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Affiliation(s)
- Ho-Chang Jeong
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea
| | - Seung-Ju Cho
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea
| | - Mi-Ok Lee
- Stem Cell Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon,, 305-806, Republic of Korea
| | - Hyuk-Jin Cha
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea.
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14
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Jeong HC, Park SJ, Choi JJ, Go YH, Hong SK, Kwon OS, Shin JG, Kim RK, Lee MO, Lee SJ, Shin HD, Moon SH, Cha HJ. PRMT8 Controls the Pluripotency and Mesodermal Fate of Human Embryonic Stem Cells By Enhancing the PI3K/AKT/SOX2 Axis. Stem Cells 2017; 35:2037-2049. [DOI: 10.1002/stem.2642] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 05/06/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Ho-Chang Jeong
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
| | - Soon-Jung Park
- Department of Medicine; School of Medicine, Konkuk University; Seoul Republic of Korea
| | - Jong-Jin Choi
- Department of Medicine; School of Medicine, Konkuk University; Seoul Republic of Korea
| | - Young-Hyun Go
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
| | - Soon-Ki Hong
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
| | - Ok-Seon Kwon
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
| | - Joong-Gon Shin
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
- Research Institute for Basic Science, Sogang University; Seoul Republic of Korea
| | - Rae-Kwon Kim
- Department of Life Science; Research Institute for Natural Sciences, Hanyang University; Seoul Republic of Korea
| | - Mi-Ok Lee
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB); Daejeon Republic of Korea
| | - Su-Jae Lee
- Department of Life Science; Research Institute for Natural Sciences, Hanyang University; Seoul Republic of Korea
| | - Hyoung Doo Shin
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
- Research Institute for Basic Science, Sogang University; Seoul Republic of Korea
| | - Sung-Hwan Moon
- Department of Medicine; School of Medicine, Konkuk University; Seoul Republic of Korea
| | - Hyuk-Jin Cha
- Department of Life Sciences, Sogang University; Seoul Republic of Korea
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15
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A preliminary analysis of volatile metabolites of human induced pluripotent stem cells along the in vitro differentiation. Sci Rep 2017; 7:1621. [PMID: 28487523 PMCID: PMC5431616 DOI: 10.1038/s41598-017-01790-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 03/31/2017] [Indexed: 12/25/2022] Open
Abstract
Cellular metabolism of stem cell biology is still an unexplored field. However, considering the amount of information carried by metabolomes, this is a promising field for a fast identification of stem cells itself and during the differentiation process. One of the goals of such application is the identification of residual pluripotent cells before cell transplantation to avoid the occurrence of teratomas. In this paper, we investigated in vitro the volatile compounds (VOCs) released during human induced pluripotent stem cells (hiPSCs) reprogramming. In particular, we studied hiPSCs differentiation to floating and adherent embryoid bodies until early neural progenitor cells. A preliminary Gas Chromatographic/Mass Spectrometer (GC/MS) analysis, based on a single extraction method and chromatographic separation, indicated 17 volatile compounds whose relative abundance is altered in each step of the differentiation process. The pattern of VOCs shown by hiPSCs is well distinct and makes these cells sharply separated from the other steps of differentiations. Similar behaviour has also been observed with an array of metalloporphyrins based gas sensors. The use of electronic sensors to control the process of differentiation of pluripotent stem cells might suggest a novel perspective for a fast and on-line control of differentiation processes.
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Diverging Concepts and Novel Perspectives in Regenerative Medicine. Int J Mol Sci 2017; 18:ijms18051021. [PMID: 28486410 PMCID: PMC5454934 DOI: 10.3390/ijms18051021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/28/2017] [Accepted: 05/03/2017] [Indexed: 12/31/2022] Open
Abstract
Regenerative medicine has rapidly evolved, due to progress in cell and molecular biology allowing the isolation, characterization, expansion, and engineering of cells as therapeutic tools. Despite past limited success in the clinical translation of several promising preclinical results, this novel field is now entering a phase of renewed confidence and productivity, marked by the commercialization of the first cell therapy products. Ongoing issues in the field include the use of pluripotent vs. somatic and of allogenic vs. autologous stem cells. Moreover, the recognition that several of the observed beneficial effects of cell therapy are not due to integration of the transplanted cells, but rather to paracrine signals released by the exogenous cells, is generating new therapeutic perspectives in the field. Somatic stem cells are outperforming embryonic and induced pluripotent stem cells in clinical applications, mainly because of their more favorable safety profile. Presently, both autologous and allogeneic somatic stem cells seem to be equally safe and effective under several different conditions. Recognition that a number of therapeutic effects of transplanted cells are mediated by paracrine signals, and that such signals can be found in extracellular vesicles isolated from culture media, opens novel therapeutic perspectives in the field of regenerative medicine.
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Jeong HC, Choo SS, Kim KT, Hong KS, Moon SH, Cha HJ, Kim TH. Conductive hybrid matrigel layer to enhance electrochemical signals of human embryonic stem cells. SENSORS AND ACTUATORS B: CHEMICAL 2017; 242:224-230. [DOI: 10.1016/j.snb.2016.11.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Electrical Impedance Monitoring of C2C12 Myoblast Differentiation on an Indium Tin Oxide Electrode. SENSORS 2016; 16:s16122068. [PMID: 27929401 PMCID: PMC5191049 DOI: 10.3390/s16122068] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 01/06/2023]
Abstract
Electrical cell-substrate impedance sensing is increasingly being used for label-free and real-time monitoring of changes in cell morphology and number during cell growth, drug screening, and differentiation. In this study, we evaluated the feasibility of using ECIS to monitor C2C12 myoblast differentiation using a fabricated indium tin oxide (ITO) electrode-based chip. C2C12 myoblast differentiation on the ITO electrode was validated based on decreases in the mRNA level of MyoD and increases in the mRNA levels of myogenin and myosin heavy chain (MHC). Additionally, MHC expression and morphological changes in myoblasts differentiated on the ITO electrode were comparable to those in cells in the control culture dish. From the monitoring the integration of the resistance change at 21.5 kHz, the cell differentiation was label-free and real-time detectable in 30 h of differentiation (p < 0.05).
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Clinical potential of human-induced pluripotent stem cells : Perspectives of induced pluripotent stem cells. Cell Biol Toxicol 2016; 33:99-112. [PMID: 27900567 DOI: 10.1007/s10565-016-9370-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/18/2016] [Indexed: 02/06/2023]
Abstract
The recent establishment of induced pluripotent stem (iPS) cells promises the development of autologous cell therapies for degenerative diseases, without the ethical concerns associated with human embryonic stem (ES) cells. Initially, iPS cells were generated by retroviral transduction of somatic cells with core reprogramming genes. To avoid potential genotoxic effects associated with retroviral transfection, more recently, alternative non-viral gene transfer approaches were developed. Before a potential clinical application of iPS cell-derived therapies can be planned, it must be ensured that the reprogramming to pluripotency is not associated with genome mutagenesis or epigenetic aberrations. This may include direct effects of the reprogramming method or "off-target" effects associated with the reprogramming or the culture conditions. Thus, a rigorous safety testing of iPS or iPS-derived cells is imperative, including long-term studies in model animals. This will include not only rodents but also larger mammalian model species to allow for assessing long-term stability of the transplanted cells, functional integration into the host tissue, and freedom from undifferentiated iPS cells. Determination of the necessary cell dose is also critical; it is assumed that a minimum of 1 billion transplantable cells is required to achieve a therapeutic effect. This will request medium to long-term in vitro cultivation and dozens of cell divisions, bearing the risk of accumulating replication errors. Here, we review the clinical potential of human iPS cells and evaluate which are the most suitable approaches to overcome or minimize risks associated with the application of iPS cell-derived cell therapies.
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Cho SJ, Kim SY, Park SJ, Song N, Kwon HY, Kang NY, Moon SH, Chang YT, Cha HJ. Photodynamic Approach for Teratoma-Free Pluripotent Stem Cell Therapy Using CDy1 and Visible Light. ACS CENTRAL SCIENCE 2016; 2:604-607. [PMID: 27725957 PMCID: PMC5043430 DOI: 10.1021/acscentsci.6b00099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Indexed: 05/03/2023]
Abstract
Pluripotent stem cells (PSC) are promising resources for regeneration therapy, but teratoma formation is one of the critical problems for safe clinical application. After differentiation, the precise detection and subsequent elimination of undifferentiated PSC is essential for teratoma-free stem cell therapy, but a practical procedure is yet to be developed. CDy1, a PSC specific fluorescent probe, was investigated for the generation of reactive oxygen species (ROS) and demonstrated to induce selective death of PSC upon visible light irradiation. Importantly, the CDy1 and/or light irradiation did not negatively affect differentiated endothelial cells. The photodynamic treatment of PSC with CDy1 and visible light irradiation confirmed the inhibition of teratoma formation in mice, and suggests a promising new approach to safe PSC-based cell therapy.
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Affiliation(s)
- Seung-Ju Cho
- Department
of Life Sciences, Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
- Research
Institute for Basic Sciences, Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - So-Yeon Kim
- Department
of Life Sciences, Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Soon-Jung Park
- Department
of Medicine, School of Medicine, Konkuk
University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Naree Song
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Haw-Young Kwon
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Nam-Young Kang
- Singapore
Bioimaging Consortium (SBIC) Agency for Science, Technology and Research
(A-STAR) 11 Biopolis
Way, #02-02 Helios, 138667, Singapore
| | - Sung-Hwan Moon
- Department
of Medicine, School of Medicine, Konkuk
University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Young-Tae Chang
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Singapore
Bioimaging Consortium (SBIC) Agency for Science, Technology and Research
(A-STAR) 11 Biopolis
Way, #02-02 Helios, 138667, Singapore
- E-mail:
| | - Hyuk-Jin Cha
- Department
of Life Sciences, Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
- E-mail:
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Hwang HJ, Ryu MY, Park CY, Ahn J, Park HG, Choi C, Ha SD, Park TJ, Park JP. High sensitive and selective electrochemical biosensor: Label-free detection of human norovirus using affinity peptide as molecular binder. Biosens Bioelectron 2016; 87:164-170. [PMID: 27551996 DOI: 10.1016/j.bios.2016.08.031] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/01/2016] [Accepted: 08/11/2016] [Indexed: 12/18/2022]
Abstract
Norovirus is known as the major cause of highly infection for gastrointestinal tracts. In this study, robust and highly sensitive biosensors for detecting human norovirus by employing a recognition affinity peptide-based electrochemical platform were described. A series of amino acid-substituted and cysteine-incorporated recognition peptides isolated from evolutionary phage display technique was chemically synthesized and immobilized to a gold sensor layer, the detection performance of the gold-immobilized synthetic peptide-based sensor system was assessed using QCM, CV and EIS. Using EIS, the limit of detection with Noro-1 as a molecular binder was found to be 99.8nM for recombinant noroviral capsid proteins (rP2) and 7.8copies/mL for human norovirus, thereby demonstrating a high degree of sensitivity for their corresponding targets. These results suggest that a biosensor which consists of affinity peptides as a molecular binder and miniaturized microdevices as diagnostic tool could be served as a new type of biosensing platform for point-of-care testing.
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Affiliation(s)
- Hye Jin Hwang
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Myung Yi Ryu
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Chan Young Park
- Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Junki Ahn
- Department of Chemical and Biomolecular Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Changsun Choi
- Department of Food and Nutrition, School of Food Science and Technology, Chung-Ang University, Ansung 17546, Republic of Korea
| | - Sang-Do Ha
- Department of Food Science and Technology, School of Food Science and Technology, Chung-Ang University, Ansung 17546, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea.
| | - Jong Pil Park
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan 38610, Republic of Korea.
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