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Maparu AK, Singh P, Rai B, Sharma A, Sivakumar S. PDMS nanoparticles-decorated PDMS substrate promotes adhesion, proliferation and differentiation of skin cells. J Colloid Interface Sci 2024; 659:629-638. [PMID: 38198940 DOI: 10.1016/j.jcis.2023.12.155] [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: 05/22/2023] [Revised: 12/14/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
Polydimethylsiloxane (PDMS) is known to be a common substrate for various cell culture-based applications. However, native PDMS is not very conducive for cell culture and hence, surface modification via cell adhesion moieties is generally needed to make it suitable especially for long-term cell culture. To address this issue, we propose to coat PDMS nanoparticles (NPs) on the surface of PDMS film to improve adhesion, proliferation and differentiation of skin cells. The proposed modification strategy introduces necessary nanotopography without altering the surface chemical properties of PDMS. Due to resemblance in the mechanical properties of PDMS with skin, PDMS NPs can recreate the native extracellular nanoenvironment of skin on the PDMS surface and provide anchoring sites for skin cells to adhere and grow. Human keratinocytes, representing 95% of the epidermal skin cells maintained their characteristic well-spread morphology with the formation of interconnected cell-sheets on this coated PDMS surface. Moreover, our in vitro immunofluorescence studies confirmed expression of distinctive epidermal protein markers on the coated surface indicating close resemblance with the native skin epidermis. Conclusively, our findings suggest that introducing nanotopography via PDMS NPs can be an effective strategy for emulating the native cellular functions of keratinocytes on PDMS based cell culture devices.
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Affiliation(s)
- Auhin Kumar Maparu
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services, 54-B, Hadapsar Industrial Estate, Pune, Maharashtra 411013, India; Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India
| | - Prerana Singh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India
| | - Beena Rai
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services, 54-B, Hadapsar Industrial Estate, Pune, Maharashtra 411013, India
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India
| | - Sri Sivakumar
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India; Material Science Programme, Thematic Unit of Excellence on Soft Nanofabrication, Centre for Environmental Science & Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.
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2
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Hung HS, Yang YC, Kao WC, Yeh CA, Chang KB, Tang CM, Hsieh HH, Lee HT. Evaluation of the Biocompatibility and Endothelial Differentiation Capacity of Mesenchymal Stem Cells by Polyethylene Glycol Nanogold Composites. Polymers (Basel) 2021; 13:polym13234265. [PMID: 34883774 PMCID: PMC8659436 DOI: 10.3390/polym13234265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/30/2021] [Accepted: 12/04/2021] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular Diseases (CVDs) such as atherosclerosis, where inflammation occurs in the blood vessel wall, are one of the major causes of death worldwide. Mesenchymal Stem Cells (MSCs)-based treatment coupled with nanoparticles is considered to be a potential and promising therapeutic strategy for vascular regeneration. Thus, angiogenesis enhanced by nanoparticles is of critical concern. In this study, Polyethylene Glycol (PEG) incorporated with 43.5 ppm of gold (Au) nanoparticles was prepared for the evaluation of biological effects through in vitro and in vivo assessments. The physicochemical properties of PEG and PEG–Au nanocomposites were first characterized by UV-Vis spectrophotometry (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), and Atomic Force Microscopy (AFMs). Furthermore, the reactive oxygen species scavenger ability as well as the hydrophilic property of the nanocomposites were also investigated. Afterwards, the biocompatibility and biological functions of the PEG–Au nanocomposites were evaluated through in vitro assays. The thin coating of PEG containing 43.5 ppm of Au nanoparticles induced the least platelet and monocyte activation. Additionally, the cell behavior of MSCs on PEG–Au 43.5 ppm coating demonstrated better cell proliferation, low ROS generation, and enhancement of cell migration, as well as protein expression of the endothelialization marker CD31, which is associated with angiogenesis capacity. Furthermore, anti-inflammatory and endothelial differentiation ability were both evaluated through in vivo assessments. The evidence demonstrated that PEG–Au 43.5 ppm implantation inhibited capsule formation and facilitated the expression of CD31 in rat models. TUNEL assay also indicated that PEG–Au nanocomposites would not induce significant cell apoptosis. The above results elucidate that the surface modification of PEG–Au nanomaterials may enable them to serve as efficient tools for vascular regeneration grafts.
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Affiliation(s)
- Huey-Shan Hung
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan; (H.-S.H.); (W.-C.K.); (C.-A.Y.); (K.-B.C.)
- Translational Medicine Research, China Medical University Hospital, Taichung 40402, Taiwan
| | - Yi-Chin Yang
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 407204, Taiwan;
| | - Wei-Chien Kao
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan; (H.-S.H.); (W.-C.K.); (C.-A.Y.); (K.-B.C.)
| | - Chun-An Yeh
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan; (H.-S.H.); (W.-C.K.); (C.-A.Y.); (K.-B.C.)
| | - Kai-Bo Chang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan; (H.-S.H.); (W.-C.K.); (C.-A.Y.); (K.-B.C.)
| | - Cheng-Ming Tang
- College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan;
| | - Hsien-Hsu Hsieh
- Blood Bank, Taichung Veterans General Hospital, Taichung 407204, Taiwan;
| | - Hsu-Tung Lee
- Cancer Prevention and Control Center, Taichung Veterans General Hospital, Taichung 407204, Taiwan
- College of Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan
- Correspondence:
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Yang MY, Liu BS, Huang HY, Yang YC, Chang KB, Kuo PY, Deng YH, Tang CM, Hsieh HH, Hung HS. Engineered Pullulan-Collagen-Gold Nano Composite Improves Mesenchymal Stem Cells Neural Differentiation and Inflammatory Regulation. Cells 2021; 10:cells10123276. [PMID: 34943784 PMCID: PMC8699622 DOI: 10.3390/cells10123276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 12/15/2022] Open
Abstract
Tissue repair engineering supported by nanoparticles and stem cells has been demonstrated as being an efficient strategy for promoting the healing potential during the regeneration of damaged tissues. In the current study, we prepared various nanomaterials including pure Pul, pure Col, Pul–Col, Pul–Au, Pul–Col–Au, and Col–Au to investigate their physicochemical properties, biocompatibility, biological functions, differentiation capacities, and anti-inflammatory abilities through in vitro and in vivo assessments. The physicochemical properties were characterized by SEM, DLS assay, contact angle measurements, UV-Vis spectra, FTIR spectra, SERS, and XPS analysis. The biocompatibility results demonstrated Pul–Col–Au enhanced cell viability, promoted anti-oxidative ability for MSCs and HSFs, and inhibited monocyte and platelet activation. Pul–Col–Au also induced the lowest cell apoptosis and facilitated the MMP activities. Moreover, we evaluated the efficacy of Pul–Col–Au in the enhancement of neuronal differentiation capacities for MSCs. Our animal models elucidated better biocompatibility, as well as the promotion of endothelialization after implanting Pul–Col–Au for a period of one month. The above evidence indicates the excellent biocompatibility, enhancement of neuronal differentiation, and anti-inflammatory capacities, suggesting that the combination of pullulan, collagen, and Au nanoparticles can be potential nanocomposites for neuronal repair, as well as skin tissue regeneration in any further clinical treatments.
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Affiliation(s)
- Meng-Yin Yang
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 407204, Taiwan; (M.-Y.Y.); (Y.-C.Y.)
- National Defense Medical Center, Graduate Institute of Medical Sciences, Taipei 11490, Taiwan
- College of Nursing, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan
- College of Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Bai-Shuan Liu
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan; (B.-S.L.); (P.-Y.K.); (Y.-H.D.)
| | - Hsiu-Yuan Huang
- Department of Cosmeceutics and Graduate, Institute of Cosmeceutics, China Medical University, Taichung 40402, Taiwan;
| | - Yi-Chin Yang
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 407204, Taiwan; (M.-Y.Y.); (Y.-C.Y.)
| | - Kai-Bo Chang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan;
| | - Pei-Yeh Kuo
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan; (B.-S.L.); (P.-Y.K.); (Y.-H.D.)
| | - You-Hao Deng
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan; (B.-S.L.); (P.-Y.K.); (Y.-H.D.)
| | - Cheng-Ming Tang
- College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan;
| | - Hsien-Hsu Hsieh
- Blood Bank, Taichung Veterans General Hospital, Taichung 407024, Taiwan;
| | - Huey-Shan Hung
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan;
- Translational Medicine Research, China Medical University Hospital, Taichung 40402, Taiwan
- Correspondence: ; Tel.: +886-4-22052121 (ext. 7827); Fax: +886-4-22333641
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Anti-Inflammatory Fibronectin-AgNP for Regulation of Biological Performance and Endothelial Differentiation Ability of Mesenchymal Stem Cells. Int J Mol Sci 2021; 22:ijms22179262. [PMID: 34502171 PMCID: PMC8430779 DOI: 10.3390/ijms22179262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 01/21/2023] Open
Abstract
The engineering of vascular regeneration still involves barriers that need to be conquered. In the current study, a novel nanocomposite comprising of fibronectin (denoted as FN) and a small amount of silver nanoparticles (AgNP, ~15.1, ~30.2 or ~75.5 ppm) was developed and its biological function and biocompatibility in Wharton's jelly-derived mesenchymal stem cells (MSCs) and rat models was investigated. The surface morphology as well as chemical composition for pure FN and the FN-AgNP nanocomposites incorporating various amounts of AgNP were firstly characterized by atomic force microscopy (AFM), UV-Visible spectroscopy (UV-Vis), and Fourier-transform infrared spectroscopy (FTIR). Among the nanocomposites, FN-AgNP with 30.2 ppm silver nanoparticles demonstrated the best biocompatibility as assessed through intracellular ROS production, proliferation of MSCs, and monocytes activation. The expression levels of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6, were also examined. FN-AgNP 30.2 ppm significantly inhibited pro-inflammatory cytokine expression compared to other materials, indicating superior performance of anti-immune response. Mechanistically, FN-AgNP 30.2 ppm significantly induced greater expression of vascular endothelial growth factor (VEGF) and stromal-cell derived factor-1 alpha (SDF-1α) and promoted the migration of MSCs through matrix metalloproteinase (MMP) signaling pathway. Besides, in vitro and in vivo studies indicated that FN-AgNP 30.2 ppm stimulated greater protein expressions of CD31 and von Willebrand Factor (vWF) as well as facilitated better endothelialization capacity than other materials. Furthermore, the histological tissue examination revealed the lowest capsule formation and collagen deposition in rat subcutaneous implantation of FN-AgNP 30.2 ppm. In conclusion, FN-AgNP nanocomposites may facilitate the migration and proliferation of MSCs, induce endothelial cell differentiation, and attenuate immune response. These finding also suggests that FN-AgNP may be a potential anti-inflammatory surface modification strategy for vascular biomaterials.
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Thangudu S, Kalluru P, Vankayala R. Preparation, Cytotoxicity, and In Vitro Bioimaging of Water Soluble and Highly Fluorescent Palladium Nanoclusters. Bioengineering (Basel) 2020; 7:bioengineering7010020. [PMID: 32098070 PMCID: PMC7175340 DOI: 10.3390/bioengineering7010020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/11/2020] [Accepted: 02/18/2020] [Indexed: 01/16/2023] Open
Abstract
Fluorescent probes offer great potential to identify and treat surgical tumors by clinicians. To this end, several molecular probes were examined as in vitro and in vivo bioimaging probes. However, due to their ultra-low extinction coefficients as well as photobleaching problems, conventional molecular probes limit its practical utility. To address the above mentioned challenges, metal nanoclusters (MNCs) can serve as an excellent alternative with many unique features such as higher molar extinction coefficients/light absorbing capabilities, good photostability and appreciable fluorescence quantum yields. Herein, we reported a green synthesis of water soluble palladium nanoclusters (Pd NCs) and characterized them by using various spectroscopic and microscopic characterization techniques. These nanoclusters showed excellent photophysical properties with the characteristic emission peak centered at 500 nm under 420 nm photoexcitation wavelength. In vitro cytotoxicity studies in human cervical cancer cells (HeLa) cells reveal that Pd NCs exhibited good biocompatibility with an IC50 value of >100 µg/mL and also showed excellent co-localization and distribution throughout the cytoplasm region with a significant fraction translocating into cell nucleus. We foresee that Pd NCs will carry huge potential to serve as a new generation bioimaging nanoprobe owing to its smaller size, minimal cytotoxicity, nucleus translocation capability and good cell labelling properties.
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Affiliation(s)
- Suresh Thangudu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan;
| | - Poliraju Kalluru
- Department of Chemistry, University of Calgary, Calgary, AB T2N 1N4, Canada;
| | - Raviraj Vankayala
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342037, India
- Correspondence:
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Photoluminescent Gold Nanoclusters in Cancer Cells: Cellular Uptake, Toxicity, and Generation of Reactive Oxygen Species. Int J Mol Sci 2017; 18:ijms18020378. [PMID: 28208642 PMCID: PMC5343913 DOI: 10.3390/ijms18020378] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 02/02/2017] [Indexed: 11/23/2022] Open
Abstract
In recent years, photoluminescent gold nanoclusters have attracted considerable interest in both fundamental biomedical research and practical applications. Due to their ultrasmall size, unique molecule-like optical properties, and facile synthesis gold nanoclusters have been considered very promising photoluminescent agents for biosensing, bioimaging, and targeted therapy. Yet, interaction of such ultra-small nanoclusters with cells and other biological objects remains poorly understood. Therefore, the assessment of the biocompatibility and potential toxicity of gold nanoclusters is of major importance before their clinical application. In this study, the cellular uptake, cytotoxicity, and intracellular generation of reactive oxygen species (ROS) of bovine serum albumin-encapsulated (BSA-Au NCs) and 2-(N-morpholino) ethanesulfonic acid (MES)-capped photoluminescent gold nanoclusters (Au-MES NCs) were investigated. The results showed that BSA-Au NCs accumulate in cells in a similar manner as BSA alone, indicating an endocytotic uptake mechanism while ultrasmall Au-MES NCs were distributed homogeneously throughout the whole cell volume including cell nucleus. The cytotoxicity of BSA-Au NCs was negligible, demonstrating good biocompatibility of such BSA-protected Au NCs. In contrast, possibly due to ultrasmall size and thin coating layer, Au-MES NCs exhibited exposure time-dependent high cytotoxicity and higher reactivity which led to highly increased generation of reactive oxygen species. The results demonstrate the importance of the coating layer to biocompatibility and toxicity of ultrasmall photoluminescent gold nanoclusters.
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Ju HX, Zhuang QK, Long YT. The Preface. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Li X, Wang H, Rong H, Li W, Luo Y, Tian K, Quan D, Wang Y, Jiang L. Effect of composite SiO₂@AuNPs on wound healing: in vitro and vivo studies. J Colloid Interface Sci 2015; 445:312-319. [PMID: 25635605 DOI: 10.1016/j.jcis.2014.12.084] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/24/2014] [Accepted: 12/24/2014] [Indexed: 12/19/2022]
Abstract
Recently gold nanomaterials have been widely applied in the biomedical field, but their biosafety is still controversial. We immobilized small gold nanoparticles (AuNPs) on a large silica substrate to form silica-gold core-shell materials (SiO2@AuNPs) via classical seed-mediated growth. In vitro, 500 nm-SiO2@AuNPs could promote the proliferation of mouse embryonic fibroblast cells (NIH/3T3). The results of transmission electron microscope (TEM) showed that the vast majority of particles did not enter cells and that the morphology of microtubules experienced no change as observed in the confocal microscope images. The mechanism may be that the large silica substrate kept AuNPs outside the cells and the nano-size concavo-convex gold shell facilitated to cell adhesion, resulting in the proliferation. In vivo, a cutaneous full-thickness excisional wound rat model was applied to assess the healing efficiency of 500 nm-SiO2@AuNPs. The results indicated that SiO2@AuNPs could promote wound healing, which was potentially related to the anti-inflammatory and antioxidation of AuNPs. The pathological finding showed that the healing levels of SiO2@AuNPs were significantly better than those of the control groups. Our study may provide insight into the application of silica-gold core-shell materials in the treatment of cutaneous wounds.
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Affiliation(s)
- Xiaoqin Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloids and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Haifei Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloids and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Huilin Rong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloids and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Wanhua Li
- Institutes of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, People's Republic of China
| | - Yuan Luo
- Institutes of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, People's Republic of China
| | - Kai Tian
- Institutes of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, People's Republic of China
| | - Dongqin Quan
- Institutes of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, People's Republic of China
| | - Yongan Wang
- Institutes of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, People's Republic of China.
| | - Long Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloids and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
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A silica-gold core-shell structure to mimic the large size of gold particles for promoting cell growth: A comparative study of the silica core size and the nanogold amount in the shell. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Xia DL, Wang YF, Bao N, He H, Li XD, Chen YP, Gu HY. Influence of reducing agents on biosafety and biocompatibility of gold nanoparticles. Appl Biochem Biotechnol 2014; 174:2458-70. [PMID: 25267352 PMCID: PMC4237916 DOI: 10.1007/s12010-014-1193-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/24/2014] [Indexed: 11/30/2022]
Abstract
Extensive biomedical applications of nanoparticles are mainly determined by their safety and compatibility in biological systems. The aim of this study was to compare the biosafety and biocompatibility of gold nanoparticles (GNPs) prepared with HEPES buffer, which is popular for cell culture, and sodium citrate, a frequent reducing agent. From experimental results on the body weight and organ coefficients of acute oral toxicity tests, it could be observed that HEPES-prepared GNPs are biologically safer than citric-prepared GNPs at the same dose of 500 μg/kg. The in vitro cell viability was higher for HEPES-prepared GNPs than citric-prepared GNPs at 5.0- and 10.0-ug/mL concentrations. More reactive oxygen species (ROS) were generated in the cell suspension when supplemented with citric-prepared GNPs than HEPES-prepared GNPs when their concentrations were higher than 20 μg/mL. The results stated that HEPES-prepared GNPs had better biosafety and biocompatibility than citric-prepared GNPs. This study not only revealed the influence of reducing agent on biosafety and biocompatibility of nanomaterials but also provided accumulative evidence for nanomaterials in biomedical applications. Spherical HEPES-prepared GNPs were prepared, and their biocompatibility and biosafety were compared with those of citrate-prepared GNPs under in vitro and in vivo conditions. Experimental results indicated that HEPES-prepared GNPs had better biosafety and biocompatibility than citric-prepared GNPs. This study indicated that the choice of the reducing agent could be a key factor for the improvement of biological responses of nanoparticles. ![]()
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Affiliation(s)
- Dong-Lin Xia
- School of Public Health, Nantong University, Nantong, 226019, China
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Hung HS, Chang CH, Chang CJ, Tang CM, Kao WC, Lin SZ, Hsieh HH, Chu MY, Sun WS, Hsu SH. In vitro study of a novel nanogold-collagen composite to enhance the mesenchymal stem cell behavior for vascular regeneration. PLoS One 2014; 9:e104019. [PMID: 25093502 PMCID: PMC4122411 DOI: 10.1371/journal.pone.0104019] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 07/04/2014] [Indexed: 12/29/2022] Open
Abstract
Novel nanocomposites based on type I collagen (Col) containing a small amount (17.4, 43.5, and 174 ppm) of gold nanoparticles (AuNPs, approximately 5 nm) were prepared in this study. The pure Col and Col-AuNP composites (Col-Au) were characterized by the UV-Vis spectroscopy (UV-Vis), surface-enhanced raman spectroscopy (SERS) and atomic force microscopy (AFM). The interaction between Col and AuNPs was confirmed by infrared (IR) spectra. The effect of AuNPs on the biocompatibility of Col, evaluated by the proliferation and reactive oxygen species (ROS) production of mesenchymal stem cells (MSCs) as well as the activation of monocytes and platelets, was investigated. Results showed that Col-Au had better biocompatibility than Col. Upon stimulation by vascular endothelial growth factor (VEGF) and stromal derived factor-1α (SDF-1α), MSCs expressed the highest levels of αvβ3 integrin/CXCR4, focal adhesion kinase (FAK), matrix metalloproteinase-2 (MMP-2), and Akt/endothelial nitric oxide synthase (eNOS) proteins when grown on the Col-Au (43.5 ppm) nanocomposite. Taken together, Col-Au nanocomposites may promote the proliferation and migration of MSCs and stimulate the endothelial cell differentiation. These results suggest that Col-Au may be used to construct tissue engineering scaffolds for vascular regeneration.
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Affiliation(s)
- Huey-Shan Hung
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. R.O.C.
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan, R.O.C.
| | - Chih-Hsuan Chang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. R.O.C.
| | - Chen-Jung Chang
- Central Taiwan University of Science and Technology, Department of Medical Imaging and Radiological Science, Taichung, Taiwan, R.O.C.
| | - Cheng-Ming Tang
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan, R.O.C.
| | - Wei-Chien Kao
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. R.O.C.
| | - Shinn-Zong Lin
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan, R.O.C.
- China Medical University Beigang Hospital, Yunlin, Taiwan, R.O.C.
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan, R.O.C
| | - Hsien-Hsu Hsieh
- Blood Bank, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C.
| | - Mei-Yun Chu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. R.O.C.
| | - Wei-Shen Sun
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. R.O.C.
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.
- Rehabilitation Engineering Research Center, National Taiwan University, Taipei, Taiwan, R.O.C.
- * E-mail:
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Schober A, Fernekorn U, Singh S, Schlingloff G, Gebinoga M, Hampl J, Williamson A. Mimicking the biological world: Methods for the 3D structuring of artificial cellular environments. Eng Life Sci 2013. [DOI: 10.1002/elsc.201200088] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Andreas Schober
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Uta Fernekorn
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Sukhdeep Singh
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Gregor Schlingloff
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Michael Gebinoga
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Jörg Hampl
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
| | - Adam Williamson
- Department of Nanobiosystem Technology, Institute of Micro- and Nanotechnologies MacroNano®; Ilmenau University of Technology; Ilmenau Germany
- Institute of Chemistry and Biotechnology; Ilmenau University of Technology; Ilmenau Germany
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13
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Hung HS, Tang CM, Lin CH, Lin SZ, Chu MY, Sun WS, Kao WC, Hsien-Hsu H, Huang CY, Hsu SH. Biocompatibility and favorable response of mesenchymal stem cells on fibronectin-gold nanocomposites. PLoS One 2013; 8:e65738. [PMID: 23826082 PMCID: PMC3691216 DOI: 10.1371/journal.pone.0065738] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 04/27/2013] [Indexed: 12/20/2022] Open
Abstract
A simple surface modification method, comprising of a thin coating with gold nanoparticles (AuNPs) and fibronectin (FN), was developed to improve the biocompatibility required for cardiovascular devices. The nanocomposites from FN and AuNPs (FN-Au) were characterized by the atomic force microscopy (AFM), UV-Vis spectrophotometry (UV-Vis), and Fourier transform infrared spectroscopy (FTIR). The biocompatibility of the nanocomposites was evaluated by the response of monocytes and platelets to the material surface in vitro. FN-Au coated surfaces demonstrated low monocyte activation and platelet activation. The behavior of human umbilical cord-derived mesenchymal stem cells (MSCs) on FN-Au was further investigated. MSCs on FN-Au nanocomposites particularly that containing 43.5 ppm of AuNPs (FN-Au 43.5 ppm) showed cell proliferation, low ROS generation, as well as increases in the protein expression levels of matrix metalloproteinase-9 (MMP-9) and endothelial nitric oxide synthase (eNOS), which may account for the enhanced MSC migration on the nanocomposites. These results suggest that the FN-Au nanocomposite thin film coating may serve as a potential and simple solution for the surface modification of blood-contacting devices such as vascular grafts.
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Affiliation(s)
- Huey-Shan Hung
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan, R.O.C.
| | - Cheng-Ming Tang
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan, R.O.C.
| | - Chien-Hsun Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
| | - Shinn-Zong Lin
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan, R.O.C.
- China Medical University Beigang Hospital, Yunlin, Taiwan, R.O.C.
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan, R.O.C.
| | - Mei-Yun Chu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
| | - Wei-Shen Sun
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
| | - Wei-Chien Kao
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
| | - Hsieh Hsien-Hsu
- Blood Bank, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C.
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, R. O. C.
- School of Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C.
- * E-mail: (CYH); (SHH)
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.
- Rehabilitation Engineering Research Center, National Taiwan University, Taipei, Taiwan, R.O.C.
- * E-mail: (CYH); (SHH)
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Development of a novel electrochemical sensor using pheochromocytoma cells and its assessment of acrylamide cytotoxicity. Biosens Bioelectron 2013; 44:122-6. [DOI: 10.1016/j.bios.2013.01.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 01/15/2013] [Accepted: 01/15/2013] [Indexed: 11/22/2022]
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15
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Gao W, Lai JCK, Leung SW. Functional enhancement of chitosan and nanoparticles in cell culture, tissue engineering, and pharmaceutical applications. Front Physiol 2012; 3:321. [PMID: 22934070 PMCID: PMC3429090 DOI: 10.3389/fphys.2012.00321] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 07/23/2012] [Indexed: 01/04/2023] Open
Abstract
As a biomaterial, chitosan has been widely used in tissue engineering, wound healing, drug delivery, and other biomedical applications. It can be formulated in a variety of forms, such as powder, film, sphere, gel, and fiber. These features make chitosan an almost ideal biomaterial in cell culture applications, and cell cultures arguably constitute the most practical way to evaluate biocompatibility and biotoxicity. The advantages of cell cultures are that they can be performed under totally controlled environments, allow high throughput functional screening, and are less costly, as compared to other assessment methods. Chitosan can also be modified into multilayer composite by combining with other polymers and moieties to alter the properties of chitosan for particular biomedical applications. This review briefly depicts and discusses applications of chitosan and nanoparticles in cell culture, in particular, the effects of chitosan and nanoparticles on cell adhesion, cell survival, and the underlying molecular mechanisms: both stimulatory and inhibitory influences are discussed. Our aim is to update the current status of how nanoparticles can be utilized to modify the properties of chitosan to advance the art of tissue engineering by using cell cultures.
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Affiliation(s)
- Wenjuan Gao
- Department of Civil and Environmental Engineering, School of Engineering, Idaho State University Pocatello, ID, USA
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16
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Shi XL, Zhang Y, Chu XH, Han B, Gu JY, Xiao JQ, Tan JJ, Gu ZZ, Ren HZ, Yuan XW, Ding YT. Evaluation of a novel hybrid bioartificial liver based on a multi-layer flat-plate bioreactor. World J Gastroenterol 2012; 18:3752-60. [PMID: 22851870 PMCID: PMC3406430 DOI: 10.3748/wjg.v18.i28.3752] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 04/26/2012] [Accepted: 05/12/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the efficacy and safety of a hybrid bioartificial liver (HBAL) system in the treatment of acute liver failure.
METHODS: Canine models with acute liver failure were introduced with intravenous administration of D-galactosamine. The animals were divided into: the HBAL treatment group (n = 8), in which the canines received a 3-h treatment of HBAL; the bioartificial liver (BAL) treatment group (n = 8), in which the canines received a 3-h treatment of BAL; the non-bioartificial liver (NBAL) treatment group (n = 8), in which the canines received a 3-h treatment of NBAL; the control group (n = 8), in which the canines received no additional treatment. Biochemical parameters and survival time were determined. Levels of xenoantibodies, RNA of porcine endogenous retrovirus (PERV) and reverse transcriptase (RT) activity in the plasma were detected.
RESULTS: Biochemical parameters were significantly decreased in all treatment groups. The TBIL level in the HBAL group was lower than that in other groups (2.19 ± 0.55 μmol/L vs 24.2 ± 6.45 μmol/L, 12.47 ± 3.62 μmol/L, 3.77 ± 1.83 μmol/L, P < 0.05). The prothrombin time (PT) in the BAL and HBAL groups was significantly shorter than the NBAL and control groups (18.47 ± 4.41 s, 15.5 ± 1.56 s vs 28.67 ± 5.71 s, 21.71 ± 3.4 s, P < 0.05), and the PT in the HBAL group was shortest of all the groups. The albumin in the BAL and HBAL groups significantly increased and a significantly higher level was observed in the HBAL group compared with the BAL group (27.7 ± 1.7 g/L vs 25.24 ± 1.93 g/L). In the HBAL group, the ammonia levels significantly decreased from 54.37 ± 6.86 to 37.75 ± 6.09 after treatment (P < 0.05); there were significant difference in ammonia levels between other the groups (P < 0.05). The levels of antibodies were similar before and after treatment. The PERV RNA and the RT activity in the canine plasma were all negative.
CONCLUSION: The HBAL showed great efficiency and safety in the treatment of acute liver failure.
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17
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Hickman GJ, Rai A, Boocock DJ, Rees RC, Perry CC. Fabrication, characterisation and performance of hydrophilic and super-hydrophilic silica as cell culture surfaces. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31161e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Yu A, Zhang X, Zhang H, Han D, Knight AR. Preparation and electrochemical properties of gold nanoparticles containing carbon nanotubes-polyelectrolyte multilayer thin films. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.02.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Cozad MJ, Bachman SL, Grant SA. Assessment of decellularized porcine diaphragm conjugated with gold nanomaterials as a tissue scaffold for wound healing. J Biomed Mater Res A 2011; 99:426-34. [PMID: 21887737 DOI: 10.1002/jbm.a.33182] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 05/11/2011] [Accepted: 05/19/2011] [Indexed: 01/22/2023]
Abstract
One million Americans suffer from chronic wounds every year with diabetics and older populations representing the majority. Mechanisms that may be responsible for the reduced healing response in these patients include reduction in growth factors or vascularization and an increase in free radical levels. The focus of this study was to develop a biocompatible gold/porcine diaphragm scaffold capable of sustaining fibroblast attachment and proliferation which was measured using viability and dsDNA assays. The free radical scavenging properties, as measured by ROS assays, were also investigated as a mechanism for improving the wound environment. Results indicated 69-89% viability for gold nanoparticle (AuNP) scaffolds and 51-74% for gold nanorod (AuNR) scaffolds as compared to 100% for decellularized scaffolds and 77% for crosslinked scaffolds. All scaffolds exhibited good cell attachment while AuNP-1X scaffolds showed the greatest cell proliferation with a 74% increase in dsDNA content from Day 3 to 7. AuNP-2X and AuNP-4X scaffolds generated higher levels of free radicals with AuNP-4X generating over twice as much as decellularized scaffolds. This study suggests the capability for gold/porcine diaphragm scaffolds to enhance cell proliferation while the modification of free radical generation appears to be dependent on nanomaterial shape and concentration.
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Affiliation(s)
- Matthew J Cozad
- Department of Biological Engineering, University of Missouri, Columbia, Missouri, USA
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20
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Transplantation of porcine hepatocytes cultured with polylactic Acid-o-carboxymethylated chitosan nanoparticles promotes liver regeneration in acute liver failure rats. JOURNAL OF DRUG DELIVERY 2011; 2011:797503. [PMID: 21603218 PMCID: PMC3095446 DOI: 10.1155/2011/797503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Revised: 01/18/2011] [Accepted: 01/31/2011] [Indexed: 01/14/2023]
Abstract
In this study, free porcine hepatocytes suspension (Group A), porcine hepatocytes embedded in collagen gel (Group B), porcine hepatocytes cultured with PLA-O-CMC nanoparticles and embedded in collagen gel (Group C), and PLA-O-CMC nanoparticles alone (Group D) were transplanted into peritoneal cavity of ALF rats, respectively. The result showed that plasma HGF levels were elevated post-transplantation with a peak at 12 hr. The rats in Group C showed highest plasma HGF levels at 2, 6, 12, 24 and 36 hr post-transplantation and lowest HGF level at 48 hr. Plasma VEGF levels were elevated at 48 hr post-transplantation with a peak at 72 hr. The rats in Group C showed highest plasma HGF levels at 48, 72, and 96 hr post-transplantation. The liver functions in Group C were recovered most rapidly. Compared with Group B, Group C had significant high liver Kiel 67 antigen labeling index (Ki-67 LI) at day 1 post-HTx (P < .05). Ki-67 LI in groups B and C was higher than that in groups A and D at days 5 and 7 post-HTx. In conclusion, intraperitoneal transplantation of porcine hepatocytes cultured with PLA-O-CMC nanoparticles and embedded in collagen gel can promote significantly liver regeneration in ALF rats.
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21
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Lu S, Xia D, Huang G, Jing H, Wang Y, Gu H. Concentration effect of gold nanoparticles on proliferation of keratinocytes. Colloids Surf B Biointerfaces 2010; 81:406-11. [PMID: 20801623 DOI: 10.1016/j.colsurfb.2010.06.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 06/25/2010] [Accepted: 06/25/2010] [Indexed: 10/19/2022]
Abstract
34 nm gold nanoparticles with good stability were synthesized and characterized and their effect (as a function of concentration) on the proliferation of keratinocytes was evaluated by means of MTT and nucleolar organizer region (AgNOR) count (silver staining). The cell morphology was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results demonstrate that a low concentration of gold nanoparticles enhances the proliferation of keratinocytes. Specifically, a concentration of 5.0 ppm gold nanoparticle has the best effect on the promotion of cell growth. In the experiment group, the AgNOR-positive areas and AgNOR area/nuclear area ratios of keratinocytes co-cultured with 5.0 ppm gold nanoparticles were greater than those in the control group (p<0.01). At a level greater than 10.0 ppm, gold nanoparticles were found to have a cytotoxic effect on keratinocytes. It is concluded that a low concentration of gold nanoparticles may be used as a biomedical material in skin tissue engineering.
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Affiliation(s)
- Shuangyun Lu
- Institute of Analytical Chemistry for Life Science, School of Public Health, Nantong University, Nantong 226001, China
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22
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Wu X, Jiang H, Zhou Y, Li J, Wu C, Wu C, Chen B, Wang X. Selective determination of drug resistant cancer cells on indium tin oxide electrode modified with nano titanium dioxide. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2010.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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23
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Zhang JJ, Gu MM, Zheng TT, Zhu JJ. Synthesis of gelatin-stabilized gold nanoparticles and assembly of carboxylic single-walled carbon nanotubes/Au composites for cytosensing and drug uptake. Anal Chem 2010; 81:6641-8. [PMID: 20337377 DOI: 10.1021/ac900628y] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gelatin-stabilized gold nanoparticles (AuNPs-gelatin) with hydrophilic and biocompatible were prepared with a simple and "green" route by reducing in situ tetrachloroauric acid in gelatin. The nanoparticles showed the excellent colloidal stability. UV-vis spectra, transmission electron microscopy (TEM), and atomic force microscopy revealed the formation of well-dispersed AuNPs with different sizes. By combination of the biocompatibility of AuNPs and excellent conductivity of carboxylic single-walled carbon nanotubes (c-SWNTs), a novel nanocomposite was designed for the immobilization and cytosensing of HL-60 cells at electrodes. The immobilized cells showed sensitive voltammetric response, good activity, and increased electron-transfer resistance. It can be used as a highly sensitive impedance sensor for HL-60 cells ranging from 1 x 10(4) to 1 x 10(7) cell mL(-1) with a limit of detection of 5 x 10(3) cell mL(-1). Moreover, the nanocomposite could effectively facilitate the interaction of adriamycin (ADR) with HL-60 cells and remarkably enhance the permeation and drug uptake of anticancer agents in the cancer cells, which could readily lead to the induction of the cell death of leukemia cells.
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Affiliation(s)
- Jing-Jing Zhang
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China
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24
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Chivu M, Dima SO, Stancu CI, Dobrea C, Uscatescu V, Necula LG, Bleotu C, Tanase C, Albulescu R, Ardeleanu C, Popescu I. In vitro hepatic differentiation of human bone marrow mesenchymal stem cells under differential exposure to liver-specific factors. Transl Res 2009; 154:122-32. [PMID: 19665688 DOI: 10.1016/j.trsl.2009.05.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 05/06/2009] [Accepted: 05/29/2009] [Indexed: 02/07/2023]
Abstract
Recent findings demonstrated that stem cells could be harvested from a patient and used to repair his or her own damaged liver. Additionally, stem cells may be manipulated in vitro to induce hepatic differentiation. The current study aims to determine the differentiation efficacy of various liver-specific factors (hepatocyte growth factor, Insulin-Transferrin-Selenium, dexamethasone, and nicotinamide) used for stem cell differentiation into hepatocyte-like cells. Human mesenchymal stem cells were exposed to different media containing these compounds added individually or in various combinations. Hepatic differentiation was assessed via quantitative reverse transcription-polymerase chain reaction and immunocytochemical staining for stemness or liver-specific genes and proteins, including albumin, cytokeratins 18 and 19, HepPar-1, alpha-fetoprotein, and nestin. In addition, functional tests for glycogen storage, urea production, glucose, and albumin synthesis were also performed. The expression profiles of albumin, alpha-fetoprotein, and cytokeratin 19 demonstrated that when hepatocyte growth factor, nicotinamide, or dexamethasone were added individually, incomplete hepatocyte differentiation was achieved; the obtained cell populations contained progenitors that expressed both hepatic (albumin) and biliary (cytokeratin 19) markers, as well as alpha-fetoprotein. Hepatocyte growth factor and nicotinamide were the factors with the most hepatogenic potential. When all factors were added to the culture, cells exhibited features that closely resembled human adult hepatocytes as determined by their gene expression patterns (albumin, HepPar-1, and alpha-fetoprotein, but not cytokeratin 19) and functional testing. These cells with hepatic function may become important tools for liver transplant procedures, liver development studies, and pharmacologic research.
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Affiliation(s)
- Mihaela Chivu
- Stefan S. Nicolau Institute of Virology, Bucharest, Romania
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25
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Yu CM, Guo JW, Gu HY. Direct electrochemical behavior of hemoglobin at surface of Au@Fe3O4 magnetic nanoparticles. Mikrochim Acta 2009. [DOI: 10.1007/s00604-009-0192-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Zhang Y, He H, Gao WJ, Lu SY, Liu Y, Gu HY. Rapid adhesion and proliferation of keratinocytes on the gold colloid/chitosan film scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.07.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Lu S, Gao W, Gu HY. Construction, application and biosafety of silver nanocrystalline chitosan wound dressing. Burns 2008; 34:623-8. [DOI: 10.1016/j.burns.2007.08.020] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2007] [Accepted: 08/27/2007] [Indexed: 10/22/2022]
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28
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Hemoglobin co-immobilized with silver–silver oxide nanoparticles on a bare silver electrode for hydrogen peroxide electroanalysis. Mikrochim Acta 2008. [DOI: 10.1007/s00604-008-0029-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Amperometric detection of nitrite using a nanometer-sized gold colloid modified pretreated glassy carbon electrode. Mikrochim Acta 2008. [DOI: 10.1007/s00604-007-0946-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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One-step electrochemically deposited interface of chitosan–gold nanoparticles for acetylcholinesterase biosensor design. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.03.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Klapperich C, Kaufman J, Wong J. Controlling and Assessing Cell–Biomaterial Interactions at the Micro- and Nanoscale. Biomaterials 2007. [DOI: 10.1201/9780849378898.ch10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Tangkuaram T, Ponchio C, Kangkasomboon T, Katikawong P, Veerasai W. Design and development of a highly stable hydrogen peroxide biosensor on screen printed carbon electrode based on horseradish peroxidase bound with gold nanoparticles in the matrix of chitosan. Biosens Bioelectron 2007; 22:2071-8. [PMID: 17046233 DOI: 10.1016/j.bios.2006.09.011] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Revised: 08/17/2006] [Accepted: 09/06/2006] [Indexed: 10/23/2022]
Abstract
The design and development of a screen printed carbon electrode (SPCE) on a polyvinyl chloride substrate as a disposable sensor is described. Six configurations were designed on silk screen frames. The SPCEs were printed with four inks: silver ink as the conducting track, carbon ink as the working and counter electrodes, silver/silver chloride ink as the reference electrode and insulating ink as the insulator layer. Selection of the best configuration was done by comparing slopes from the calibration plots generated by the cyclic voltammograms at 10, 20 and 30 mM K(3)Fe(CN)(6) for each configuration. The electrodes with similar configurations gave similar slopes. The 5th configuration was the best electrode that gave the highest slope. Modifying the best SPCE configuration for use as a biosensor, horseradish peroxidase (HRP) was selected as a biomaterial bound with gold nanoparticles (AuNP) in the matrix of chitosan (HRP/AuNP/CHIT). Biosensors of HRP/SPCE, HRP/CHIT/SPCE and HRP/AuNP/CHIT/SPCE were used in the amperometric detection of H(2)O(2) in a solution of 0.1M citrate buffer, pH 6.5, by applying a potential of -0.4V at the working electrode. All the biosensors showed an immediate response to H(2)O(2). The effect of HRP/AuNP incorporated with CHIT (HRP/AuNP/CHIT/SPCE) yielded the highest performance. The amperometric response of HRP/AuNP/CHIT/SPCE retained over 95% of the initial current of the 1st day up to 30 days of storage at 4 degrees C. The biosensor showed a linear range of 0.01-11.3mM H(2)O(2), with a detection limit of 0.65 microM H(2)O(2) (S/N=3). The low detection limit, long storage life and wide linear range of this biosensor make it advantageous in many applications, including bioreactors and biosensors.
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Affiliation(s)
- Tanin Tangkuaram
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
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33
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Hsu SH, Tang CM, Tseng HJ. Biocompatibility of poly(ether)urethane-gold nanocomposites. J Biomed Mater Res A 2007; 79:759-70. [PMID: 16871514 DOI: 10.1002/jbm.a.30879] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We have prepared the nanocomposites of a polyether-type waterborne polyurethane (PU) incorporated with different amounts (17.4-174 ppm) of gold (Au) nanoparticles ( approximately 5 nm). The nanocomposite containing a certain amount (43.5 ppm) of gold was previously demonstrated to possess the optimal thermal and mechanical properties, as well as much reduced foreign body reactions in subcutaneous rats. In this study, the surface morphology, biocompatibility, oxidative degradation, and free radical scavenging ability of the nanocomposites were characterized in vitro. The nanocomposite at 43.5 ppm of gold ("PU-Au 43.5 ppm") exhibited different surface morphology confirmed by the atomic force microscope. PU-Au 43.5 ppm also showed enhanced cellular proliferation, reduced platelet and monocyte activation, and much less bacterial adhesion, relative to PU alone or nanocomposites at the other Au contents, in general. This better biocompatibility was associated with the surface morphological change in the presence of Au. The oxidative degradation in PU-Au 43.5 ppm was also inhibited. The increased oxidative stability corresponded to the greater free radical scavenging ability of the nanocomposites.
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Affiliation(s)
- Shan-Hui Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan, Republic of China
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Tang D, Yuan R, Chai Y. Biochemical and immunochemical characterization of the antigen–antibody reaction on a non-toxic biomimetic interface immobilized red blood cells of crucian carp and gold nanoparticles. Biosens Bioelectron 2007; 22:1116-20. [PMID: 16787745 DOI: 10.1016/j.bios.2006.04.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2006] [Revised: 03/13/2006] [Accepted: 04/19/2006] [Indexed: 11/16/2022]
Abstract
A special protein assay system based on a highly hydrophilic, non-toxic and conductive biominetic interface has been demonstrated. To fabricate such assay system, red blood cells of crucian carp (RBC) was initially grown on a glassy carbon electrode surface (GCE) deposited nano-sized gold particles (GPs), a second gold nanoparticle layer (NG) was then absorbed on the RBC surface, and finally mammary cancer 15-3 antibody (anti-CA15-3) was attached on the functional RBC surface. A competitive immunoassay format was employed to detect CA15-3 with horseradish peroxidase (HRP)-labeled CA15-3 as tracer and hydrogen peroxide as enzyme substrate. When the immunosensor was incubated into a mixture solution containing HRP-labeled CA15-3 and CA15-3 sample for 1h at 37 degrees C, the amperometric response decreased with the increment of CA15-3 sample concentration. AFM images of the modified layer revealed a uniform distribution of protein and nanogold. In situ QCM and electrochemical measurements demonstrated that the wanted antibody-antigen reactions should occur with high specificity and selectivity. The specific immunoassay system can be developed further to yield sophisticated structures for other proteins.
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Affiliation(s)
- Dianping Tang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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35
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Gu H, Lu S, Jiang Q, Yu C, Li G, Chen H. A Novel Nitric Oxide Cellular Biosensor Based on Red Blood Cells Immobilized on Gold Nanoparticles. ANAL LETT 2006. [DOI: 10.1080/00032710600867457] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Chen Z, Dai XZ, Yang XR, Zhu WC. Preparation of polylactic acid-O-carboxymethylated chitosan nanoparticles and their influences on the cultured porcine hepatocytes. Shijie Huaren Xiaohua Zazhi 2006; 14:1669-1674. [DOI: 10.11569/wcjd.v14.i17.1669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To prepare polylactic acid-O-carboxyme-thylated chitosan (PLA-O-CMC) nanoparticles and evaluate their influences on the morphology and functions of cultured porcine hepatocytes.
METHODS: PLA-O-CMC nanoparticles were prepared from PLA and O-CMC by ultrasonic method. The nanoparticles were characterized by atomic force microscopy and X-ray photoelectron spectrometry. Isolated porcine hepatocytes were divided into two groups: commonly culturing group and nanomaterial group (co-culturing hepatocytes with PLA-O-CMC nanoparticles). The morphology and functions of the cultured hepatocytes were observed within 1 wk.
RESULTS: PLA-O-CMC nanoparticles were successfully prepared, and the diameter was 300-500 nm under atomic force microscope. X-ray photoelectron spectrometry showed that the proportions of C, O, and N element were 72.51%, 23.69%, and 3.80%, respectively. The hepatocytes lost their features of polygons after common culture for 48 h. However, after co-culture with PLA-O-CMC nanoparticles, the hepatocytes clustered into conglobulations, and most of them restored their cell polarities, shaping as typical polygons. After culture for 1, 3, and 5 d, the content of albumin (ALB) was significantly higher in nanomaterial group than that in commonly culturing group (3.53 ± 0.052, 3.48 ± 0.075, 3.57 ± 0.137 g/L vs 3.10 ± 0.179, 3.17 ± 0.186, 3.10 ± 0.219 g/L, all P < 0.05), while on day 3, 5 and 7, the level of alanine aminotransferase (ALT) was markedly lower (15.33 ± 13.05, 8.84 ± 8.87, 7.00 ± 5.22 nkat/L vs 24.17 ± 20.35, 16.17 ± 27.49, 15.50 ± 11.95 nkat/L, all P < 0.05). From day 3 to 7, the content of supernant blood urea nitrogen (BUN) was higher in nanomaterial group than that in commonly culturing group, but there was no significant difference (P > 0.05).
CONCLUSION: PLA-O-CMC nanoparticles are successfully prepared, and can be used in the culture of hepatocytes.
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Cheng YB, Wang YJ, Zhang SC, Liu J, Chen Z, Li JJ. Response of porcine hepatocytes in primary culture to plasma from severe viral hepatitis patients. World J Gastroenterol 2006; 11:7585-90. [PMID: 16437682 PMCID: PMC4727237 DOI: 10.3748/wjg.v11.i48.7585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To observe the effects of plasma from patients with severe viral hepatitis (SVHP) on the growth and metabolism of porcine hepatocytes and the clinical efficiency of bioartificial liver device. METHODS Hepatocytes were isolated from male porcines by collagenase perfusion. The synthesis of DNA and total protein, leakages of AST and LDH, changes in glutathione (GSH), catalase and morphology of porcine hepatocytes exposed to SVHP were investigated to indicate the effect of plasma from patients with severe hepatitis on the growth, injury, detoxification, and morphology of porcine hepatocytes. RESULTS The synthesis of DNA and protein was inhibited in the medium containing 100% SVHP compared to the controls. The leakages of LDH and AST increased in porcine hepatocytes following exposure to 100% SVHP for 5 h. The difference between 100% SVHP and 10% newborn calf serum (NCS) was significant in t-test (LDH: t = 24.552, P = 0.001; AST: t = 4.169, P = 0.014). After exposure to SVHP for 24 h, alterations in GSH status were significant (F = 2.746, P<0.05) between porcine hepatocytes in 100% SVHP and 10% NCS, but no alteration occurred in the culture medium after 48 h (F = 4.378, P<0.05). A similar profile was observed in catalase activity. Many round vacuoles were observed in porcine hepatocytes cultured in SVHP. The membranes of these cells became indistinct and almost all the cells died on d 5. CONCLUSION Plasma from patients with severe hepatitis inhibits the growth, injures membrane, disturbs GSH homeostasis and induces morphological changes of porcine hepatocytes. It is suggested that SVHP should be pretreated to reduce the toxin load and improve the performance of porcine hepatocytes in extracorporeal liver-support devices.
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Affiliation(s)
- Yong-Bo Cheng
- Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Du D, Liu S, Chen J, Ju H, Lian H, Li J. Colloidal gold nanoparticle modified carbon paste interface for studies of tumor cell adhesion and viability. Biomaterials 2005; 26:6487-95. [PMID: 15951013 DOI: 10.1016/j.biomaterials.2005.03.048] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2005] [Accepted: 03/29/2005] [Indexed: 11/21/2022]
Abstract
A non-toxic biomimetic interface for immobilization of living cells and electrochemical exogenous effect study of cell viability was constructed by mixing colloidal gold nanoparticles in carbon paste. A new approach to study the effects of anti-tumor drug and other exogenous factors on cell viability was proposed. The nanoparticles were efficient for preserving the activity of immobilized living cells and preventing their leakage from the electrode surface. The immobilized living AsPC-1 cells (pancreatic adenocarcinoma cells derived from ascites) exhibited an irreversible voltammetric response related to the oxidation of guanine. The presence of guanine was verified by liquid chromatography-mass spectrometry. The contents of guanine in cytoplasm of each AsPC-1 and normal pancreatic cell were detected to be 370 and 22amol, respectively. The cytotoxic effect of adriamycin resulted in a decrease in peak current of guanine. The optimal exogenous factors that affected cell viability, including pH, temperature and salt concentration of electrolyte, were just consistent with cell growth conditions in culture. This simple and rapid method could be applied for the electrochemical investigation of exogenous effect and characterization of the viability of living cells.
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Affiliation(s)
- Dan Du
- Key Laboratory of Analytical Chemistry for Life Science (Education Ministry of China), Nanjing University, Nanjing 210093, PR China
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