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Li M, Wang R, Bao Q. Hyper-spectra imaging analysis of PLGA microspheres via machine learning enhanced Raman spectroscopy. J Control Release 2024; 367:676-686. [PMID: 38309305 DOI: 10.1016/j.jconrel.2024.01.071] [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: 11/28/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024]
Abstract
Long-acting injectables (LAI) offer a cost-effective and patient-centric approach by reducing pill burden and improving compliance, leading to better treatment outcomes. Among various types of long-acting injectables, poly (lactic-co-glycolic acid) (PLGA) microspheres have been extensively investigated and reported in the literature. However, microsphere formulation development is still challenging due to the complexity of PLGA polymer, formulation screening, and processing, as well as time-consuming and cumbersome physicochemical characterization. A further challenge is the limited availability of drug substances in early formulation development. Therefore, there is a need to develop novel and advanced tools that can accelerate the early formulation development. In this manuscript, a novel comprehensive physicochemical characterization approach was developed by integrating Raman microscopy and the machine learning process. The physicochemical properties such as drug loading, particle size and size distribution, content uniformity/heterogeneity, and drug polymorphism of the microspheres can be obtained in a single run, without requiring separate methods for each attribute (e.g., liquid chromatography, particle size analyzer, thermal analysis, X-ray powder diffraction). This approach is non-destructive and can significantly reduce material consumption, sample preparation, labor work, and analysis time/cost, which will greatly facilitate the formulation development of PLGA microsphere products. In addition, the approach will potentially be beneficial in enabling automated high throughput screening of microsphere formulations.
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Affiliation(s)
- Minghe Li
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877, USA
| | - Ruifeng Wang
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877, USA; Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Quanying Bao
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877, USA.
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2
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Lindtner RA, Wurm A, Pirchner E, Putzer D, Arora R, Coraça-Huber DC, Schirmer M, Badzoka J, Kappacher C, Huck CW, Pallua JD. Enhancing Bone Infection Diagnosis with Raman Handheld Spectroscopy: Pathogen Discrimination and Diagnostic Potential. Int J Mol Sci 2023; 25:541. [PMID: 38203710 PMCID: PMC10778662 DOI: 10.3390/ijms25010541] [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: 11/28/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Osteomyelitis is a bone disease caused by bacteria that can damage bone. Raman handheld spectroscopy has emerged as a promising diagnostic tool for detecting bone infection and can be used intraoperatively during surgical procedures. This study involved 120 bone samples from 40 patients, with 80 samples infected with either Staphylococcus aureus or Staphylococcus epidermidis. Raman handheld spectroscopy demonstrated successful differentiation between healthy and infected bone samples and between the two types of bacterial pathogens. Raman handheld spectroscopy appears to be a promising diagnostic tool in bone infection and holds the potential to overcome many of the shortcomings of traditional diagnostic procedures. Further research, however, is required to confirm its diagnostic capabilities and consider other factors, such as the limit of pathogen detection and optimal calibration standards.
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Affiliation(s)
- Richard Andreas Lindtner
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
| | - Alexander Wurm
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
- Praxis Dr. Med. Univ. Alexander Wurm FA für Orthopädie und Traumatologie, Koflerweg 7, 6275 Stumm, Austria
| | - Elena Pirchner
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
| | - David Putzer
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
| | - Rohit Arora
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
| | - Débora Cristina Coraça-Huber
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
| | - Michael Schirmer
- Department of Internal Medicine, Clinic II, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria;
| | - Jovan Badzoka
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Christoph Kappacher
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Christian Wolfgang Huck
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Johannes Dominikus Pallua
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.A.L.); (A.W.); (E.P.); (D.P.); (R.A.); (D.C.C.-H.)
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3
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Ma C, Cao H, Sun Z, Deng Q, Liu W, Xin Y, Qiao S, Cen J, Shu Y, Qi K, Han L, Zhang L, Pan G. CD47 and PD-L1 overexpression in proliferating human hepatocytes attenuated immune responses and ameliorated acute liver injury in mice. Am J Transplant 2023; 23:1832-1844. [PMID: 37532180 DOI: 10.1016/j.ajt.2023.07.020] [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: 11/24/2022] [Revised: 06/18/2023] [Accepted: 07/26/2023] [Indexed: 08/04/2023]
Abstract
Hepatocyte transplantation has the potential to treat acute liver failure and correct liver-based metabolic disorders. Proliferating human hepatocytes (ProliHHs) provide a large-scale source as an alternative to primary human hepatocytes. However, host rejection led to inefficient graft survival and function, which hindered the clinical application of cell therapy. Herein, we employed the lentiviral system to overexpress immunomodulatory factors programmed death-ligand 1 (cluster of differentiation 274) (CD274) and cluster of differentiation 47 (CD47) in ProliHHs. CD47+274 overexpression inhibited macrophage and T cell responses in vitro. After transplantation into mice via the spleen without immunosuppression, CD47+274 ProliHHs accumulation in the liver significantly increased for 48 hours compared with ProliHHs. Consistent with the in vitro results, CD47+274 ProliHHs were less aggregated and infiltrated by macrophages and also recruited fewer T cells in the liver. Seven days after transplantation, the human albumin level of engineered ProliHHs doubled compared with control group. CD47+274 ProliHHs further ameliorated the liver injury induced using concanavalin A. Overall, our results suggested CD47+274 overexpression reduced innate and adaptive immune responses during hepatocyte transplantation, and the survival rate and graft function of transplanted hepatocyte-like cells were all significantly improved.
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Affiliation(s)
- Chen Ma
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Huiying Cao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zhen Sun
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Science, Beijing, China; School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Qiangqiang Deng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wenjing Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; School of Chinese Materia Medica, Nanjing University of Chinese Medicine, China
| | - Yingying Xin
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Shida Qiao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jin Cen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Science, Beijing, China
| | - Yajing Shu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Science, Beijing, China
| | - Kai Qi
- Shanghai Hexaell Biotech Co., Ltd, Shanghai, China
| | - Li Han
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ludi Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Science, Beijing, China.
| | - Guoyu Pan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China.
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Lindtner R, Wurm A, Kugel K, Kühn J, Putzer D, Arora R, Coraça-Huber DC, Zelger P, Schirmer M, Badzoka J, Kappacher C, Huck CW, Pallua JD. Comparison of Mid-Infrared Handheld and Benchtop Spectrometers to Detect Staphylococcus epidermidis in Bone Grafts. Bioengineering (Basel) 2023; 10:1018. [PMID: 37760120 PMCID: PMC10525239 DOI: 10.3390/bioengineering10091018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/18/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Bone analyses using mid-infrared spectroscopy are gaining popularity, especially with handheld spectrometers that enable on-site testing as long as the data quality meets standards. In order to diagnose Staphylococcus epidermidis in human bone grafts, this study was carried out to compare the effectiveness of the Agilent 4300 Handheld Fourier-transform infrared with the Perkin Elmer Spectrum 100 attenuated-total-reflectance infrared spectroscopy benchtop instrument. The study analyzed 40 non-infected and 10 infected human bone samples with Staphylococcus epidermidis, collecting reflectance data between 650 cm-1 and 4000 cm-1, with a spectral resolution of 2 cm-1 (Agilent 4300 Handheld) and 0.5 cm-1 (Perkin Elmer Spectrum 100). The acquired spectral information was used for spectral and unsupervised classification, such as a principal component analysis. Both methods yielded significant results when using the recommended settings and data analysis strategies, detecting a loss in bone quality due to the infection. MIR spectroscopy provides a valuable diagnostic tool when there is a tissue shortage and time is of the essence. However, it is essential to conduct further research with larger sample sizes to verify its pros and cons thoroughly.
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Affiliation(s)
- Richard Lindtner
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - Alexander Wurm
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
- Praxis Dr. Med. Univ. Alexander Wurm FA für Orthopädie und Traumatologie, Koflerweg 7, 6275 Stumm, Austria
| | - Katrin Kugel
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - Julia Kühn
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - David Putzer
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - Rohit Arora
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - Débora Cristina Coraça-Huber
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
| | - Philipp Zelger
- University Clinic for Hearing, Voice and Speech Disorders, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria;
| | - Michael Schirmer
- Department of Internal Medicine, Clinic II, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria;
| | - Jovan Badzoka
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Christoph Kappacher
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Christian Wolfgang Huck
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (J.B.); (C.K.); (C.W.H.)
| | - Johannes Dominikus Pallua
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (R.L.); (K.K.); (J.K.); (D.P.); (R.A.); (D.C.C.-H.); (J.D.P.)
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5
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Shuyun W, Lin F, Pan C, Zhang Q, Tao H, Fan M, Xu L, Kong KV, Chen Y, Lin D, Feng S. Laser tweezer Raman spectroscopy combined with deep neural networks for identification of liver cancer cells. Talanta 2023; 264:124753. [PMID: 37290333 DOI: 10.1016/j.talanta.2023.124753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/25/2023] [Accepted: 05/28/2023] [Indexed: 06/10/2023]
Abstract
Rapid identification of cancer cells is crucial for clinical treatment guidance. Laser tweezer Raman spectroscopy (LTRS) that provides biochemical characteristics of cells can be used to identify cell phenotypes through classification models in a non-invasive and label-free manner. However, traditional classification methods require extensive reference databases and clinical experience, which is challenging when sampling at inaccessible locations. Here, we describe a classification method combing LTRS with deep neural network (DNN) for differential and discriminative analysis of multiple liver cancer (LC) cells. By using LTRS, we obtained high-quality single-cell Raman spectra of normal hepatocytes (HL-7702) and liver cancer cell lines (SMMC-7721, Hep3B, HepG2, SK-Hep1 and Huh7). The tentative assignment of Raman peaks indicated that arginine content was elevated and phenylalanine, glutathione and glutamate content was decreased in liver cancer cells. Subsequently, we randomly selected 300 spectra from each cell line for DNN model analysis, achieving a mean accuracy of 99.2%, a mean sensitivity of 99.2% and a mean specificity of 99.8% for the identification and classification of multiple LC cells and hepatocyte cells. These results demonstrate the combination of LTRS and DNN is a promising method for rapid and accurate cancer cell identification at single cell level.
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Affiliation(s)
- Weng Shuyun
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Fengjie Lin
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital Fuzhou, Fuzhou, 3500014, China
| | - Changbin Pan
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Qiyi Zhang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Hong Tao
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Min Fan
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Luyun Xu
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Yuanmei Chen
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital Fuzhou, Fuzhou, 3500014, China
| | - Duo Lin
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China.
| | - Shangyuan Feng
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China.
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Gillette AA, Pham DL, Skala MC. Touch-free optical technologies to streamline the production of T cell therapies. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2023; 25:100434. [PMID: 36642996 PMCID: PMC9837746 DOI: 10.1016/j.cobme.2022.100434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Currently approved adoptive T cell therapy relies on autologous (obtained from the same patient) T cells, which often suffer from poor quality that diminishes treatment efficacy. Due to the heterogeneous nature of T cell quality between and within patients, significant efforts are aimed at optimizing cell manipulation and growth conditions for potent T cell products. We believe that touch-free imaging and sensing technologies are critical to monitor single-cell features during T cell manufacturing to ensure consistent and optimally timed methods for cell manipulation and growth. Here, we discuss emerging label-free optical imaging and sensing methods, along with machine learning techniques that could enable in-line feedback to optimize T cell quality at multiple stages during manufacturing. These methods have the potential to streamline current workflow, accelerate the manufacture of safe high-quality T cell therapies, and improve our understanding of the dynamic, heterogeneous processes of T cell manufacturing.
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Affiliation(s)
| | - Dan L Pham
- Department of Biomedical Engineering, University of Wisconsin-Madison
| | - Melissa C Skala
- Morgridge Institute for Research, Madison, Wisconsin
- Department of Biomedical Engineering, University of Wisconsin-Madison
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Wurm A, Kühn J, Kugel K, Putzer D, Arora R, Coraça-Huber DC, Zelger P, Badzoka J, Kappacher C, Huck CW, Pallua JD. Raman microscopic spectroscopy as a diagnostic tool to detect Staphylococcus epidermidis in bone grafts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121570. [PMID: 35779474 DOI: 10.1016/j.saa.2022.121570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Raman microscopic spectroscopyis a new approach for further characterization and detection of molecular features in many pathological processes. This technique has been successfully applied to scrutinize the spatial distribution of small molecules and proteins within biological systems by in situ analysis. This study uses Raman microscopic spectroscopyto identify any in-depth benefits and drawbacks in diagnosing Staphylococcus epidermidis in human bone grafts. MATERIAL AND METHODS 40 non-infected human bone samples and 10 human bone samples infected with Staphylococcus epidermidis were analyzed using Raman microscopic spectroscopy. Reflectance data were collected between 200 cm-1 and 3600 cm-1 with a spectral resolution of 4 cm-1 using a Senterra II microscope (Bruker, Ettlingen, Germany). The acquired spectral information was used for spectral and unsupervised classification, such as principal component analysis. RESULTS Raman measurements produced distinct diagnostic spectra that were used to distinguish between non-infected human bone samples and Staphylococcus epidermidis infected human bone samples by spectral and principal component analyses. A substantial loss in bone quality and protein conformation was detected by human bone samples co-cultured with Staphylococcus epidermidis. The mineral-to-matrix ratio using the phosphate/Amide I ratio (p = 0.030) and carbonate/phosphate ratio (p = 0.001) indicates that the loss of relative mineral content in bones upon bacterial infection is higher than in non-infected human bones. Also, an increase of alterations in the collagen network (p = 0.048) and a decrease in the structural organization and relative collagen in infected human bone could be detected. Subsequent principal component analyses identified Staphylococcus epidermidis in different spectral regions, respectively, originating mainly from CH2 deformation (wagging) of protein (at 1450 cm-1) and bending and stretching modes of C-H groups (∼2800-3000 cm-1). CONCLUSION Raman microscopic spectroscopyis presented as a promising diagnostic tool to detect Staphylococcus epidermidis in human bone grafts. Further studies in human tissues are warranted.
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Affiliation(s)
- A Wurm
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - J Kühn
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - K Kugel
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - D Putzer
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - R Arora
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - D C Coraça-Huber
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - P Zelger
- University Clinic for Hearing, Voice and Speech Disorders, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria
| | - J Badzoka
- Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria
| | - C Kappacher
- Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria
| | - C W Huck
- Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria
| | - J D Pallua
- University Hospital for Orthopaedics and Traumatology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria.
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McCorry MC, Reardon KF, Black M, Williams C, Babakhanova G, Halpern JM, Sarkar S, Swami NS, Mirica KA, Boermeester S, Underhill A. Sensor technologies for quality control in engineered tissue manufacturing. Biofabrication 2022; 15:10.1088/1758-5090/ac94a1. [PMID: 36150372 PMCID: PMC10283157 DOI: 10.1088/1758-5090/ac94a1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 09/23/2022] [Indexed: 11/11/2022]
Abstract
The use of engineered cells, tissues, and organs has the opportunity to change the way injuries and diseases are treated. Commercialization of these groundbreaking technologies has been limited in part by the complex and costly nature of their manufacture. Process-related variability and even small changes in the manufacturing process of a living product will impact its quality. Without real-time integrated detection, the magnitude and mechanism of that impact are largely unknown. Real-time and non-destructive sensor technologies are key for in-process insight and ensuring a consistent product throughout commercial scale-up and/or scale-out. The application of a measurement technology into a manufacturing process requires cell and tissue developers to understand the best way to apply a sensor to their process, and for sensor manufacturers to understand the design requirements and end-user needs. Furthermore, sensors to monitor component cells' health and phenotype need to be compatible with novel integrated and automated manufacturing equipment. This review summarizes commercially relevant sensor technologies that can detect meaningful quality attributes during the manufacturing of regenerative medicine products, the gaps within each technology, and sensor considerations for manufacturing.
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Affiliation(s)
- Mary Clare McCorry
- Advanced Regenerative Manufacturing Institute, Manchester, NH 03101, United States of America
| | - Kenneth F Reardon
- Chemical and Biological Engineering and Biomedical Engineering, Colorado State University, Fort Collins, CO 80521, United States of America
| | - Marcie Black
- Advanced Silicon Group, Lowell, MA 01854, United States of America
| | - Chrysanthi Williams
- Access Biomedical Solutions, Trinity, Florida 34655, United States of America
| | - Greta Babakhanova
- National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America
| | - Jeffrey M Halpern
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824, United States of America
- Materials Science and Engineering Program, University of New Hampshire, Durham, NH 03824, United States of America
| | - Sumona Sarkar
- National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America
| | - Nathan S Swami
- Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, United States of America
| | - Katherine A Mirica
- Department of Chemistry, Dartmouth College, Hanover, NH 03755, United States of America
| | - Sarah Boermeester
- Advanced Regenerative Manufacturing Institute, Manchester, NH 03101, United States of America
| | - Abbie Underhill
- Scientific Bioprocessing Inc., Pittsburgh, PA 15238, United States of America
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9
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Tubbesing K, Moskwa N, Khoo TC, Nelson DA, Sharikova A, Feng Y, Larsen M, Khmaladze A. Raman microspectroscopy fingerprinting of organoid differentiation state. Cell Mol Biol Lett 2022; 27:53. [PMID: 35764935 PMCID: PMC9238268 DOI: 10.1186/s11658-022-00347-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 05/24/2022] [Indexed: 12/02/2022] Open
Abstract
Background Organoids, which are organs grown in a dish from stem or progenitor cells, model the structure and function of organs and can be used to define molecular events during organ formation, model human disease, assess drug responses, and perform grafting in vivo for regenerative medicine approaches. For therapeutic applications, there is a need for nondestructive methods to identify the differentiation state of unlabeled organoids in response to treatment with growth factors or pharmacologicals. Methods Using complex 3D submandibular salivary gland organoids developed from embryonic progenitor cells, which respond to EGF by proliferating and FGF2 by undergoing branching morphogenesis and proacinar differentiation, we developed Raman confocal microspectroscopy methods to define Raman signatures for each of these organoid states using both fixed and live organoids. Results Three separate quantitative comparisons, Raman spectral features, multivariate analysis, and machine learning, classified distinct organoid differentiation signatures and revealed that the Raman spectral signatures were predictive of organoid phenotype. Conclusions As the organoids were unlabeled, intact, and hydrated at the time of imaging, Raman spectral fingerprints can be used to noninvasively distinguish between different organoid phenotypes for future applications in disease modeling, drug screening, and regenerative medicine. Supplementary Information The online version contains supplementary material available at 10.1186/s11658-022-00347-3. Salivary gland organoids have unique Raman signatures detectable with a confocal-based Raman imaging approach. Raman signatures can be detected in unlabeled fixed or live organoids. Raman spectral signatures effectively predict organoid phenotypes.
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10
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Liu B, Liu K, Wang N, Ta K, Liang P, Yin H, Li B. Laser tweezers Raman spectroscopy combined with deep learning to classify marine bacteria. Talanta 2022; 244:123383. [DOI: 10.1016/j.talanta.2022.123383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/05/2022] [Accepted: 03/11/2022] [Indexed: 10/18/2022]
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11
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The impact of HPV infection on human glycogen and lipid metabolism - a review. Biochim Biophys Acta Rev Cancer 2021; 1877:188646. [PMID: 34763025 DOI: 10.1016/j.bbcan.2021.188646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/03/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022]
Abstract
Reinterpretation of the Wartburg effect leads to understanding aerobic glycolysis as a process that provides considerable amount of molecular precursors for the production of lipids, nucleotides and amino acids that are necessary for continuous growth and rapid proliferation characteristic for cancer cells. Human papilloma virus (HPV) is a number one cause of cervical carcinoma with 99% of the cervical cancer patients being HPV positive. This tight link between HPV and cancer raises the question if and how HPV impact cells to reprogram their metabolism? Focusing on early phase proteins E1, E2, E5, E6 and E7 we demonstrate that HPV activates plethora of metabolic pathways and directly influences enzymes of the glycolysis pathway to promote the Warburg effect by increasing glucose uptake, activating glycolysis and pentose phosphate pathway, increasing the level of lactate dehydrogenase A synthesis and inhibiting β-oxidation. Our considerations lead to conclusion that HPV is substantially involved in metabolic cell reprogramming toward neoplastic phenotype and its metabolic activity is the fundamental reason of its oncogenicity.
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12
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Potcoava MC, Futia GL, Gibson EA, Schlaepfer IR. Lipid profiling using Raman and a modified support vector machine algorithm. JOURNAL OF RAMAN SPECTROSCOPY : JRS 2021; 52:1910-1922. [PMID: 35814195 PMCID: PMC9269992 DOI: 10.1002/jrs.6238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 08/03/2021] [Indexed: 06/15/2023]
Abstract
Lipid droplets are dynamic organelles that play important cellular roles. They are composed of a phospholipid membrane and a core of triglycerides and sterol esters. Fatty acids have important roles in phospholipid membrane formation, signaling, and synthesis of triglycerides as energy storage. Better non-invasive tools for profiling and measuring cellular lipids are needed. Here we demonstrate the potential of Raman spectroscopy to determine with high accuracy the composition changes of the fatty acids and cholesterol found in the lipid droplets of prostate cancer cells treated with various fatty acids. The methodology uses a modified least squares fitting (LSF) routine that uses highly discriminatory wavenumbers between the fatty acids present in the sample using a support vector machine algorithm. Using this new LSF routine, Raman micro-spectroscopy can become a better non-invasive tool for profiling and measuring fatty acids and cholesterol for cancer biology.
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Affiliation(s)
- Mariana C. Potcoava
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Gregory L. Futia
- Department of Bioengineering, University of Colorado Denver, Aurora, Colorado, USA
| | - Emily A. Gibson
- Department of Bioengineering, University of Colorado Denver, Aurora, Colorado, USA
| | - Isabel R. Schlaepfer
- Division of Medical Oncology, School of Medicine, University of Colorado Denver, Aurora, Colorado, USA
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13
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Ma C, Zhang L, He T, Cao H, Ren X, Ma C, Yang J, Huang R, Pan G. Single cell Raman spectroscopy to identify different stages of proliferating human hepatocytes for cell therapy. Stem Cell Res Ther 2021; 12:555. [PMID: 34717753 PMCID: PMC8556950 DOI: 10.1186/s13287-021-02619-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/23/2021] [Indexed: 12/11/2022] Open
Abstract
Background Cell therapy provides hope for treatment of advanced liver failure. Proliferating human hepatocytes (ProliHHs) were derived from primary human hepatocytes (PHH) and as potential alternative for cell therapy in liver diseases. Due to the continuous decline of mature hepatic genes and increase of progenitor like genes during ProliHHs expanding, it is challenge to monitor the critical changes of the whole process. Raman microspectroscopy is a noninvasive, label free analytical technique with high sensitivity capacity. In this study, we evaluated the potential and feasibility to identify ProliHHs from PHH with Raman spectroscopy. Methods Raman spectra were collected at least 600 single spectrum for PHH and ProliHHs at different stages (Passage 1 to Passage 4). Linear discriminant analysis and a two-layer machine learning model were used to analyze the Raman spectroscopy data. Significant differences in Raman bands were validated by the associated conventional kits. Results Linear discriminant analysis successfully classified ProliHHs at different stages and PHH. A two-layer machine learning model was established and the overall accuracy was at 84.6%. Significant differences in Raman bands have been found within different ProliHHs cell groups, especially changes at 1003 cm−1, 1206 cm−1 and 1440 cm−1. These changes were linked with reactive oxygen species, hydroxyproline and triglyceride levels in ProliHHs, and the hypothesis were consistent with the corresponding assay results. Conclusions In brief, Raman spectroscopy was successfully employed to identify different stages of ProliHHs during dedifferentiation process. The approach can simultaneously trace multiple changes of cellular components from somatic cells to progenitor cells. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02619-9.
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Affiliation(s)
- Chen Ma
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ludi Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Science, Beijing, China
| | - Ting He
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Huiying Cao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiongzhao Ren
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Chenhui Ma
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiale Yang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruimin Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Guoyu Pan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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14
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Tubbesing K, Khoo TC, Bahreini Jangjoo S, Sharikova A, Barroso M, Khmaladze A. Iron-binding cellular profile of transferrin using label-free Raman hyperspectral imaging and singular value decomposition (SVD). Free Radic Biol Med 2021; 169:416-424. [PMID: 33930515 PMCID: PMC8667008 DOI: 10.1016/j.freeradbiomed.2021.04.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/12/2021] [Accepted: 04/21/2021] [Indexed: 01/07/2023]
Abstract
Serum transferrin (Tf) is the essential iron transport protein in the body. Transferrin is responsible for the sequestration of free iron in serum and the delivery of iron throughout the body and into cells, where iron is released inside a mildly acidified endosome. Altered iron distributions are associated with diseases such as iron-overload, cancer, and cardiovascular disease. The presence of free iron is linked to deleterious redox reactions, inside and outside cells and organelles. As Tf iron release is pH dependent, any changes in intraorganelle and extracellular pH, often associated with disease progression, could inhibit normal iron delivery or accelerate iron release in the wrong compartment. However, imaging approaches to monitor changes in the iron-bound state of Tf are lacking. Recently, Raman spectroscopy has been shown to measure iron-bound forms of Tf in solution, intact cells and tissue samples. Here, a biochemical Raman assay has been developed to identify iron-release from Tf following modification of chemical environment. Quantitative singular value decomposition (SVD) method has been applied to discriminate between iron-bound Tf samples during endocytic trafficking in intact cancer cells subjected to Raman hyperspectral confocal imaging. We demonstrate the strength of the SVD method to monitor pH-induced Tf iron-release using Raman hyperspectral imaging, providing the redox biology field with a novel tool that facilitates subcellular investigation of the iron-binding profile of transferrin in various disease models.
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Affiliation(s)
- Kate Tubbesing
- Physics Department, SUNY University at Albany, 1400 Washington Avenue, Albany, NY, 12222, USA
| | - Ting Chean Khoo
- Physics Department, SUNY University at Albany, 1400 Washington Avenue, Albany, NY, 12222, USA
| | - Shahab Bahreini Jangjoo
- Physics Department, SUNY University at Albany, 1400 Washington Avenue, Albany, NY, 12222, USA
| | - Anna Sharikova
- Physics Department, SUNY University at Albany, 1400 Washington Avenue, Albany, NY, 12222, USA
| | - Margarida Barroso
- Department of Molecular and Cellular Physiology, Albany Medical College, 47 New Scotland Avenue, Albany, NY, 12208, USA
| | - Alexander Khmaladze
- Physics Department, SUNY University at Albany, 1400 Washington Avenue, Albany, NY, 12222, USA.
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15
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Rammal H, Al Assaad A, Dosio F, Stella B, Maksimenko A, Mura S, Van Gulick L, Callewaert M, Desmaële D, Couvreur P, Morjani H, Beljebbar A. Investigation of squalene-doxorubicin distribution and interactions within single cancer cell using Raman microspectroscopy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 35:102404. [PMID: 33932593 DOI: 10.1016/j.nano.2021.102404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/10/2021] [Accepted: 04/08/2021] [Indexed: 11/17/2022]
Abstract
Intracellular distribution of doxorubicin (DOX) and its squalenoylated (SQ-DOX) nanoparticles (NPs) form in murine lung carcinoma M109 and human breast carcinoma MDA-MB-231 cells was investigated by Raman microspectroscopy. Pharmacological data showed that DOX induced higher cytotoxic effect than SQ-DOX NPs. Raman data were obtained using single-point measurements and imaging on the whole cell areas. These data showed that after DOX treatment at 1 μM, the spectral features of DOX were not detected in the M109 cell cytoplasm and nucleus. However, the intracellular distribution of SQ-DOX NPs was higher than DOX in the same conditions. In addition, SQ-DOX NPs were localized into both cell cytoplasm and nucleus. After 5 μM treatment, Raman bands of DOX at 1211 and 1241 cm-1 were detected in the nucleus. Moreover, the intensity ratio of these bands decreased, indicating DOX intercalation into DNA. However, after treatment with SQ-DOX NPs, the intensity of these Raman bands increased. Interestingly, with SQ-DOX NPs, the intensity of 1210/1241 cm-1 ratio was higher suggesting a lower fraction of intercalated DOX in DNA and higher amount of non-hydrolyzed SQ-DOX. Raman imaging data confirm this subcellular localization of these drugs in both M109 and MDA-MB-231 cells. These finding brings new insights to the cellular characterization of anticancer drugs at the molecular level, particularly in the field of nanomedicine.
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Affiliation(s)
- Hassan Rammal
- Translational BioSpectrocopy, BioSpecT, EA 7506, Université de Reims, Faculté de Pharmacie, Reims, France.
| | - Almar Al Assaad
- Translational BioSpectrocopy, BioSpecT, EA 7506, Université de Reims, Faculté de Pharmacie, Reims, France.
| | - Franco Dosio
- Department of Drug Science and Technology, University of Torino, Torino, Italy.
| | - Barbara Stella
- Department of Drug Science and Technology, University of Torino, Torino, Italy.
| | - Andrei Maksimenko
- Institut Galien Paris-Saclay CNRS UMR8612, Université Paris-Saclay, Faculté de Pharmacie, Châtenay-Malabry, France..
| | - Simona Mura
- Institut Galien Paris-Saclay CNRS UMR8612, Université Paris-Saclay, Faculté de Pharmacie, Châtenay-Malabry, France..
| | - Laurence Van Gulick
- Translational BioSpectrocopy, BioSpecT, EA 7506, Université de Reims, Faculté de Pharmacie, Reims, France; Institut de Chimie Moléculaire de Reims, ICMR - UMR 7312, Université de Reims, Faculté de Pharmacie, Reims, France.
| | - Maïté Callewaert
- Institut de Chimie Moléculaire de Reims, ICMR - UMR 7312, Université de Reims, Faculté de Pharmacie, Reims, France.
| | - Didier Desmaële
- Institut Galien Paris-Saclay CNRS UMR8612, Université Paris-Saclay, Faculté de Pharmacie, Châtenay-Malabry, France..
| | - Patrick Couvreur
- Institut Galien Paris-Saclay CNRS UMR8612, Université Paris-Saclay, Faculté de Pharmacie, Châtenay-Malabry, France..
| | - Hamid Morjani
- Translational BioSpectrocopy, BioSpecT, EA 7506, Université de Reims, Faculté de Pharmacie, Reims, France.
| | - Abdelilah Beljebbar
- Translational BioSpectrocopy, BioSpecT, EA 7506, Université de Reims, Faculté de Pharmacie, Reims, France.
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16
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Li Y, Shen B, Li S, Zhao Y, Qu J, Liu L. Review of Stimulated Raman Scattering Microscopy Techniques and Applications in the Biosciences. Adv Biol (Weinh) 2020; 5:e2000184. [PMID: 33724734 DOI: 10.1002/adbi.202000184] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/17/2020] [Indexed: 01/10/2023]
Abstract
Stimulated Raman scattering (SRS) microscopy is a nonlinear optical imaging method for visualizing chemical content based on molecular vibrational bonds. Featuring high speed, high resolution, high sensitivity, high accuracy, and 3D sectioning, SRS microscopy has made tremendous progress toward biochemical information acquisition, cellular function investigation, and label-free medical diagnosis in the biosciences. In this review, the principle of SRS, system design, and data analysis are introduced, and the current innovations of the SRS system are reviewed. In particular, combined with various bio-orthogonal Raman tags, the applications of SRS microscopy in cell metabolism, tumor diagnosis, neuroscience, drug tracking, and microbial detection are briefly examined. The future prospects for SRS microscopy are also shared.
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Affiliation(s)
- Yanping Li
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
| | - Binglin Shen
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
| | - Shaowei Li
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
| | - Yihua Zhao
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
| | - Liwei Liu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, China
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17
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Potter M, Hanson C, Anderson AJ, Vargis E, Britt DW. Abiotic stressors impact outer membrane vesicle composition in a beneficial rhizobacterium: Raman spectroscopy characterization. Sci Rep 2020; 10:21289. [PMID: 33277560 PMCID: PMC7719170 DOI: 10.1038/s41598-020-78357-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/13/2020] [Indexed: 11/08/2022] Open
Abstract
Outer membrane vesicles (OMVs) produced by Gram-negative bacteria have roles in cell-to-cell signaling, biofilm formation, and stress responses. Here, the effects of abiotic stressors on OMV contents and composition from biofilm cells of the plant health-promoting bacterium Pseudomonas chlororaphis O6 (PcO6) are examined. Two stressors relevant to this root-colonizing bacterium were examined: CuO nanoparticles (NPs)-a potential fertilizer and fungicide- and H2O2-released from roots during plant stress responses. Atomic force microscopy revealed 40-300 nm diameter OMVs from control and stressed biofilm cells. Raman spectroscopy with linear discriminant analysis (LDA) was used to identify changes in chemical profiles of PcO6 cells and resultant OMVs according to the cellular stressor with 84.7% and 83.3% accuracies, respectively. All OMVs had higher relative concentrations of proteins, lipids, and nucleic acids than PcO6 cells. The nucleic acid concentration in OMVs exhibited a cellular stressor-dependent increase: CuO NP-induced OMVs > H2O2-induced OMVs > control OMVs. Biochemical assays confirmed the presence of lipopolysaccharides, nucleic acids, and protein in OMVs; however, these assays did not discriminate OMV composition according to the cellular stressor. These results demonstrate the sensitivity of Raman spectroscopy using LDA to characterize and distinguish cellular stress effects on OMVs composition and contents.
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Affiliation(s)
- Matthew Potter
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Cynthia Hanson
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Anne J Anderson
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Elizabeth Vargis
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA.
| | - David W Britt
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA.
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18
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Zhou H, Simmons CS, Sarntinoranont M, Subhash G. Raman Spectroscopy Methods to Characterize the Mechanical Response of Soft Biomaterials. Biomacromolecules 2020; 21:3485-3497. [PMID: 32833438 DOI: 10.1021/acs.biomac.0c00818] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Raman spectroscopy has been used extensively to characterize the influence of mechanical deformation on microstructure changes in biomaterials. While traditional piezo-spectroscopy has been successful in assessing internal stresses of hard biomaterials by tracking prominent peak shifts, peak shifts due to applied loads are near or below the resolution limit of the spectrometer for soft biomaterials with moduli in the kilo- to mega-Pascal range. In this Review, in addition to peak shifts, other spectral features (e.g., polarized intensity and intensity ratio) that provide quantitative assessments of microstructural orientation and secondary structure in soft biomaterials and their strain dependence are discussed. We provide specific examples for each method and classify sensitive Raman characteristic bands common across natural (e.g., soft tissue) and synthetic (e.g., polymeric scaffolds) soft biomaterials upon mechanical deformation. This Review can provide guidance for researchers aiming to analyze micromechanics of soft tissues and engineered tissue constructs by Raman spectroscopy.
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Affiliation(s)
- Hui Zhou
- Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Chelsey S Simmons
- Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Malisa Sarntinoranont
- Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Ghatu Subhash
- Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States
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19
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Sitarz K, Czamara K, Bialecka J, Klimek M, Zawilinska B, Szostek S, Kaczor A. HPV Infection Significantly Accelerates Glycogen Metabolism in Cervical Cells with Large Nuclei: Raman Microscopic Study with Subcellular Resolution. Int J Mol Sci 2020; 21:ijms21082667. [PMID: 32290479 PMCID: PMC7215571 DOI: 10.3390/ijms21082667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 02/06/2023] Open
Abstract
Using Raman microscopy, we investigated epithelial cervical cells collected from 96 women with squamous cell carcinoma (SCC) or belonging to groups I, IIa, IIID-1 and IIID-2 according to Munich III classification (IIID-1 and IIID-2 corresponding to Bethesda LSIL and HSIL groups, respectively). All women were tested for human papillomavirus (HPV) infection using PCR. Subcellular resolution of Raman microscopy enabled to understand phenotypic differences in a heterogeneous population of cervical cells in the following groups: I/HPV−, IIa/HPV−, IIa/HPV−, LSIL/HPV−, LSIL/HPV+, HSIL/HPV−, HSIL/HPV+ and cancer cells (SCC/HPV+). We showed for the first time that the glycogen content in the cytoplasm decreased with the nucleus size of cervical cells in all studied groups apart from the cancer group. For the subpopulation of large-nucleus cells HPV infection resulted in considerable glycogen depletion compared to HPV negative cells in IIa, LSIL (for both statistical significance, ca. 45%) and HSIL (trend, 37%) groups. We hypothesize that accelerated glycogenolysis in large-nucleus cells may be associated with the increased protein metabolism for HPV positive cells. Our work underlines unique capabilities of Raman microscopy in single cell studies and demonstrate potential of Raman-based methods in HPV diagnostics.
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Affiliation(s)
- Katarzyna Sitarz
- Department of Virology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland; (K.S.); (B.Z.)
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Street, 30-387 Krakow, Poland
| | - Krzysztof Czamara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Street, 30-348 Krakow, Poland;
| | - Joanna Bialecka
- Centre of Microbiological Research and Autovaccines, 17 Slawkowska Street, 31-016 Krakow, Poland;
| | - Malgorzata Klimek
- National Research Institute of Oncology, Krakow Branch, Clinic of Radiotherapy, 11 Garncarska Street, 31-115 Krakow, Poland;
| | - Barbara Zawilinska
- Department of Virology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland; (K.S.); (B.Z.)
| | - Slawa Szostek
- Department of Virology, Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland; (K.S.); (B.Z.)
- Correspondence: (S.S.); (A.K.)
| | - Agnieszka Kaczor
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Street, 30-387 Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Street, 30-348 Krakow, Poland;
- Correspondence: (S.S.); (A.K.)
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20
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Liendl L, Grillari J, Schosserer M. Raman fingerprints as promising markers of cellular senescence and aging. GeroScience 2020; 42:377-387. [PMID: 30715693 PMCID: PMC7205846 DOI: 10.1007/s11357-019-00053-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 01/17/2019] [Indexed: 12/15/2022] Open
Abstract
Due to our aging population, understanding of the underlying molecular mechanisms constantly gains more and more importance. Senescent cells, defined by being irreversibly growth arrested and associated with a specific gene expression and secretory pattern, accumulate with age and thus contribute to several age-related diseases. However, their specific detection, especially in vivo, is still a major challenge. Raman microspectroscopy is able to record biochemical fingerprints of cells and tissues, allowing a distinction between different cellular states, or between healthy and cancer tissue. Similarly, Raman microspectroscopy was already successfully used to distinguish senescent from non-senescent cells, as well as to investigate other molecular changes that occur at cell and tissue level during aging. This review is intended to give an overview about various applications of Raman microspectroscopy to study aging, especially in the context of detecting senescent cells.
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Affiliation(s)
- Lisa Liendl
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria
| | - Johannes Grillari
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria
- Evercyte GmbH, 1190, Vienna, Austria
- Christian Doppler Laboratory on Biotechnology of Skin Aging, 1190, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria.
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21
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Higgins SG, Becce M, Belessiotis-Richards A, Seong H, Sero JE, Stevens MM. High-Aspect-Ratio Nanostructured Surfaces as Biological Metamaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1903862. [PMID: 31944430 PMCID: PMC7610849 DOI: 10.1002/adma.201903862] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/02/2019] [Indexed: 04/14/2023]
Abstract
Materials patterned with high-aspect-ratio nanostructures have features on similar length scales to cellular components. These surfaces are an extreme topography on the cellular level and have become useful tools for perturbing and sensing the cellular environment. Motivation comes from the ability of high-aspect-ratio nanostructures to deliver cargoes into cells and tissues, access the intracellular environment, and control cell behavior. These structures directly perturb cells' ability to sense and respond to external forces, influencing cell fate, and enabling new mechanistic studies. Through careful design of their nanoscale structure, these systems act as biological metamaterials, eliciting unusual biological responses. While predominantly used to interface eukaryotic cells, there is growing interest in nonanimal and prokaryotic cell interfacing. Both experimental and theoretical studies have attempted to develop a mechanistic understanding for the observed behaviors, predominantly focusing on the cell-nanostructure interface. This review considers how high-aspect-ratio nanostructured surfaces are used to both stimulate and sense biological systems.
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Affiliation(s)
- Stuart G. Higgins
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | | | | | - Hyejeong Seong
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Julia E. Sero
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Molly M. Stevens
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
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22
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Rangan S, Schulze HG, Vardaki MZ, Blades MW, Piret JM, Turner RFB. Applications of Raman spectroscopy in the development of cell therapies: state of the art and future perspectives. Analyst 2020; 145:2070-2105. [DOI: 10.1039/c9an01811e] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This comprehensive review article discusses current and future perspectives of Raman spectroscopy-based analyses of cell therapy processes and products.
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Affiliation(s)
- Shreyas Rangan
- Michael Smith Laboratories
- The University of British Columbia
- Vancouver
- Canada
- School of Biomedical Engineering
| | - H. Georg Schulze
- Michael Smith Laboratories
- The University of British Columbia
- Vancouver
- Canada
| | - Martha Z. Vardaki
- Michael Smith Laboratories
- The University of British Columbia
- Vancouver
- Canada
| | - Michael W. Blades
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - James M. Piret
- Michael Smith Laboratories
- The University of British Columbia
- Vancouver
- Canada
- School of Biomedical Engineering
| | - Robin F. B. Turner
- Michael Smith Laboratories
- The University of British Columbia
- Vancouver
- Canada
- Department of Chemistry
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23
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Lita A, Kuzmin AN, Pliss A, Baev A, Rzhevskii A, Gilbert MR, Larion M, Prasad PN. Toward Single-Organelle Lipidomics in Live Cells. Anal Chem 2019; 91:11380-11387. [PMID: 31381322 DOI: 10.1021/acs.analchem.9b02663] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Detailed studies of lipids in biological systems, including their role in cellular structure, metabolism, and disease development, comprise an increasingly prominent discipline called lipidomics. However, the conventional lipidomics tools, such as mass spectrometry, cannot investigate lipidomes until they are extracted, and thus they cannot be used for probing the lipid distribution nor for studying in live cells. Furthermore, conventional techniques rely on the lipid extraction from relatively large samples, which averages the data across the cellular populations and masks essential cell-to-cell variations. Further advancement of the discipline of lipidomics critically depends on the capability of high-resolution lipid profiling in live cells and, potentially, in single organelles. Here we report a micro-Raman assay designed for single-organelle lipidomics. We demonstrate how Raman microscopy can be used to measure the local intracellular biochemical composition and lipidome hallmarks-lipid concentration and unsaturation level, cis/trans isomer ratio, sphingolipids and cholesterol levels in live cells-with a sub-micrometer resolution, which is sufficient for profiling of subcellular structures. These lipidome data were generated by a newly developed biomolecular component analysis software, which provides a shared platform for data analysis among different research groups. We outline a robust, reliable, and user-friendly protocol for quantitative analysis of lipid profiles in subcellular structures. This method expands the capabilities of Raman-based lipidomics toward the analysis of single organelles within either live or fixed cells, thus allowing an unprecedented measure of organellar lipid heterogeneity and opening new quantitative ways to study the phenotypic variability in normal and diseased cells.
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Affiliation(s)
- Adrian Lita
- Neuro-Oncology Branch, Center for Cancer Research , National Cancer Institute, National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Andrey N Kuzmin
- Advanced Cytometry Instrumentation Systems, LLC , 19 Elm Street , Buffalo , New York 14203 , United States.,Institute for Lasers, Photonics and Biophotonics , University at Buffalo, State University of New York , Buffalo , New York 14260 , United States
| | - Artem Pliss
- Advanced Cytometry Instrumentation Systems, LLC , 19 Elm Street , Buffalo , New York 14203 , United States.,Institute for Lasers, Photonics and Biophotonics , University at Buffalo, State University of New York , Buffalo , New York 14260 , United States
| | - Alexander Baev
- Institute for Lasers, Photonics and Biophotonics , University at Buffalo, State University of New York , Buffalo , New York 14260 , United States
| | - Alexander Rzhevskii
- Thermo Fisher Scientific , 2 Radcliff Road, Tewksbury , Massachusetts 01876 , United States
| | - Mark R Gilbert
- Neuro-Oncology Branch, Center for Cancer Research , National Cancer Institute, National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Mioara Larion
- Neuro-Oncology Branch, Center for Cancer Research , National Cancer Institute, National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Paras N Prasad
- Institute for Lasers, Photonics and Biophotonics , University at Buffalo, State University of New York , Buffalo , New York 14260 , United States
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24
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Mencaglia AA, Osticioli I, Ciofini D, Gallo L, Siano S. Raman spectrometer for the automated scan of large painted surfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:053101. [PMID: 31153252 DOI: 10.1063/1.5088039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
In this work, a novel Raman scanner capable of performing point-to-point mapping of relatively large surface of paintings is presented. This device employs an excitation wavelength of 1064 nm, and it is equipped with a high efficiency probe in order to collect the back-scattered light from each point of analysis. The use of long depth-of-field optics as well as an autofocus system allowed maintaining the best conditions for the Raman signal acquisition during the scanning, regardless of the surface irregularities. The small dimension of the optical components and the reasonable size of mechanical parts made this instrumentation particularly suitable for on-site measurements. Finally, the Raman scanner was also equipped with an online temperature control using a thermal sensor, which allows modulating automatically the output power of the laser source in order to prevent overheating and alteration effects during the scanning process. The capabilities of the Raman scanner were evaluated scanning two valuable paintings one attributed to Ambrogio Lorenzetti and the other to Duccio da Buoninsegna of the fourteenth century.
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Affiliation(s)
| | - Iacopo Osticioli
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
| | - Daniele Ciofini
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
| | | | - Salvatore Siano
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
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25
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Raman spectroscopy on live mouse early embryo while it continues to develop into blastocyst in vitro. Sci Rep 2019; 9:6636. [PMID: 31036868 PMCID: PMC6488652 DOI: 10.1038/s41598-019-42958-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 03/27/2019] [Indexed: 12/18/2022] Open
Abstract
Laser based spectroscopic methods can be versatile tools in investigating early stage mammalian embryo structure and biochemical processes in live oocytes and embryos. The limiting factor for using the laser methods in embryological studies is the effect of laser irradiation on the ova. The aim of this work is to explore the optimal parameters of the laser exposure in Raman spectroscopic measurements applicable for studying live early embryos in vitro without impacting their developmental capability. Raman spectra from different areas of mouse oocytes and 2-cells embryos were measured and analyzed. The laser power and exposure time were varied and further embryo development was evaluated to select optimal conditions of the measurements. This work demonstrates safe laser irradiation parameters can be selected, which allow acquisition of Raman spectra suitable for further analysis without affecting the early mouse embryo development in vitro up to morphologically normal blastocyst. The estimation of living embryo state is demonstrated via analysis and comparison of the spectra from fertilized embryo with the spectra from unfertilized oocytes or embryos subjected to UV laser irradiation. These results demonstrate the possibility of investigating preimplantation mammalian embryo development and estimating its state/quality. It will have potential in developing prognosis of mammalian embryos in assisted reproductive technologies.
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26
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Zhang H, Zhang W, Xiao L, Liu Y, Gilbertson TA, Zhou A. Use of Surface-Enhanced Raman Scattering (SERS) Probes to Detect Fatty Acid Receptor Activity in a Microfluidic Device. SENSORS (BASEL, SWITZERLAND) 2019; 19:E1663. [PMID: 30965560 PMCID: PMC6480160 DOI: 10.3390/s19071663] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/20/2019] [Accepted: 03/26/2019] [Indexed: 11/16/2022]
Abstract
In this study, 4-mercaptobenzoic acid (MBA)-Au nanorods conjugated with a GPR120 antibody were developed as a highly sensitive surface-enhanced Raman spectroscopy (SERS) probe, and were applied to detect the interaction of fatty acids (FA) and their cognate receptor, GPR120, on the surface of human embryonic kidney cells (HEK293-GPRR120) cultured in a polydimethylsiloxane (PDMS) microfluidic device. Importantly, the two dominant characteristic SERS peaks of the Raman reporter molecule MBA, 1078 cm-1 and 1581 cm-1, do not overlap with the main Raman peaks from the PDMS substrate when the appropriate spectral scanning range is selected, which effectively avoided the interference from the PDMS background signals. The proposed microfluidic device consisted of two parts, that is, the concentration gradient generator (CGG) and the cell culture well array. The CGG part was fabricated to deliver five concentrations of FA simultaneously. A high aspect ratio well structure was designed to address the problem of HEK cells vulnerable to shear flow. The results showed a positive correlation between the SERS peak intensity and the FA concentrations. This work, for the first time, achieved the simultaneous monitoring of the Raman spectra of cells and the responses of the receptor in the cells upon the addition of fatty acid. The development of this method also provides a platform for the monitoring of cell membrane receptors on single-cell analysis using SERS in a PDMS-based microfluidic device.
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Affiliation(s)
- Han Zhang
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
| | - Wei Zhang
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
| | - Lifu Xiao
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
| | - Yan Liu
- Department of Internal Medicine, University Central Florida, Orlando, FL 32827-7408, USA.
| | - Timothy A Gilbertson
- Department of Internal Medicine, University Central Florida, Orlando, FL 32827-7408, USA.
| | - Anhong Zhou
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
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27
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Li Q, Li W, Zhang J, Xu Z. An improved k-nearest neighbour method to diagnose breast cancer. Analyst 2019; 143:2807-2811. [PMID: 29863729 DOI: 10.1039/c8an00189h] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
As a molecular and noninvasive detection technology, Raman spectroscopy is promising for use in the early diagnosis of tumors. The SNR of spectra obtained from portable Raman spectrometers is low, which makes classification more difficult. A classification algorithm with a high recognition rate is required. In this paper, an algorithm of entropy weighted local-hyperplane k-nearest-neighbor (EWHK) is proposed for the identification of the spectra. When calculating the weighted distance between the prediction and the sample hyperplane, EWHK introduces the information entropy weighting to improve the algorithm of adaptive weighted k-local hyperplane (AWKH). It can reflect all of the sample information in the classification objectively and improve the classification accuracy. The breast cancer detection experimental results of EWHK showed a significant improvement compared with those of AWKH and k-nearest neighbor (KNN). The EWHK classifier yielded an average diagnostic accuracy of 92.33%, a sensitivity of 93.81%, a specificity of 87.77%, a positive prediction rate of 95.99% and a negative prediction rate of 83.69% during randomized grouping validation. The algorithm is effective for cancer diagnosis.
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Affiliation(s)
- Qingbo Li
- School of Instrumentation Science and Opto-Electronics Engineering, Precision Opto-Mechatronics Technology Key Laboratory of Education Ministry, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing, 100191, China.
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28
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Tarozzi N, Nadalini M, Borini A. Effect on Sperm DNA Quality Following Sperm Selection for ART: New Insights. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1166:169-187. [DOI: 10.1007/978-3-030-21664-1_10] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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Raman spectroscopy detects biochemical changes due to different cell culture environments in live cells in vitro. Anal Bioanal Chem 2018; 410:7537-7550. [DOI: 10.1007/s00216-018-1371-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/02/2018] [Accepted: 09/11/2018] [Indexed: 01/16/2023]
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30
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Kuzmin AN, Pliss A, Prasad PN. Ramanomics: New Omics Disciplines Using Micro Raman Spectrometry with Biomolecular Component Analysis for Molecular Profiling of Biological Structures. BIOSENSORS-BASEL 2017; 7:bios7040052. [PMID: 29140259 PMCID: PMC5746775 DOI: 10.3390/bios7040052] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 12/20/2022]
Abstract
Modern instrumentation for Raman microspectroscopy and current techniques in analysis of spectral data provide new opportunities to study molecular interactions and dynamics at subcellular levels in biological systems. Implementation of biomolecular component analysis (BCA) to microRaman spectrometry provides basis for the emergence of Ramanomics, a new biosensing discipline with unprecedented capabilities to measure concentrations of distinct biomolecular groups in live cells and organelles. Here we review the combined use of microRaman-BCA techniques to probe absolute concentrations of proteins, DNA, RNA and lipids in single organelles of live cells. Assessing biomolecular concentration profiles of organelles at the single cell level provides a physiologically relevant set of biomarkers for cellular heterogeneity. In addition, changes to an organelle's biomolecular concentration profile during a cellular transformation, whether natural, drug induced or disease manifested, can provide molecular insight into the nature of the cellular process.
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Affiliation(s)
- Andrey N Kuzmin
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA.
- Advanced Cytometry Instrumentation Systems, LLC, 640 Ellicott Street-Suite 499, Buffalo, NY 14203, USA.
| | - Artem Pliss
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA.
- Advanced Cytometry Instrumentation Systems, LLC, 640 Ellicott Street-Suite 499, Buffalo, NY 14203, USA.
| | - Paras N Prasad
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA.
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31
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Senol O, Albayrak M, Demirkaya Miloglu F, Kadioglu Y, Calik M. Application of Photonics in Diagnosis of Papillary Thyroid Carcinoma Tissues through Raman Spectroscopy-Assisted with Chemometrics. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1309423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Onur Senol
- Department of Analytical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Mevlut Albayrak
- Department of Medical Laboratory Techniques, Health Services Vocational Training School, Ataturk University, Erzurum, Turkey
| | - Fatma Demirkaya Miloglu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Yucel Kadioglu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Muhammet Calik
- Department of Pathology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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32
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Štiavnická M, Abril-Parreño L, Nevoral J, Králíčková M, García-Álvarez O. Non-Invasive Approaches to Epigenetic-Based Sperm Selection. Med Sci Monit 2017; 23:4677-4683. [PMID: 28961228 PMCID: PMC5633068 DOI: 10.12659/msm.904098] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since sperm size and form do not necessarily provide information on internal sperm structures, novel sperm markers need to be found in order to conduct assisted reproductive therapies (ART) successfully. Currently, the priority of andrologists is not only to select those sperm able to fertilize the oocyte, but also a high quality of sperm that will guarantee a healthy embryo. Evidence of this shows us the importance of studying sperm intensively on genetic and epigenetic levels, because these could probably be the cause of a percentage of infertility diagnosed as idiopathic. Thus, more attention is being paid to posttranslational modifications as the key for better understanding of the fertilization process and its impact on embryo and offspring. Advances in the discovery of new sperm markers should go hand in hand with finding appropriate techniques for selecting the healthiest sperm, guaranteeing its non-invasiveness. To date, most sperm selection techniques can be harmful to sperm due to centrifugation or staining procedures. Some methods, such as microfluidic techniques, sperm nanopurifications, and Raman spectroscopy, have the potential to make selection gentle to sperm, tracking small abnormalities undetected by methods currently used. The fact that live cells could be analyzed without harmful effects creates the expectation of using them routinely in ART. In this review, we focus on the combination of sperm epigenetic status (modifications) as quality markers, with non-invasive sperm selection methods as novel approaches to improve ART outcomes.
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Affiliation(s)
- Miriama Štiavnická
- Laboratory of Reproductive Medicine of Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Laura Abril-Parreño
- Laboratory of Reproductive Medicine of Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Jan Nevoral
- Laboratory of Reproductive Medicine of Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Milena Králíčková
- Laboratory of Reproductive Medicine of Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Olga García-Álvarez
- Laboratory of Reproductive Medicine of Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
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33
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Cheng A, Chen H, Schwartz Z, Boyan BD. Imaging analysis of the interface between osteoblasts and microrough surfaces of laser-sintered titanium alloy constructs. J Microsc 2017; 270:41-52. [PMID: 28960365 DOI: 10.1111/jmi.12648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/07/2017] [Accepted: 09/07/2017] [Indexed: 11/30/2022]
Abstract
Previous work using focused ion beam (FIB) analysis of osteoblasts on smooth and microrough Ti surfaces showed that the average cell aspect ratio and distance from the surface are greater on the rough surface. In order to better interrogate the relationship between individual cells and their substrate using multiple imaging modalities, we developed a method that tracks the same cell across confocal laser scanning microscopy (CLSM) to correlate surface microroughness with cell morphology and cytoskeleton; scanning electron microscopy (SEM) to provide higher resolution for observation of nanoroughness as well as chemical mapping via energy dispersive X-ray spectroscopy; and transmission electron microscopy (TEM) for high-resolution imaging. FIB was used to prepare thin sections of the cell-material interface for TEM, or for three-dimensional electron tomography. Cells were cultured on laser-sintered Ti-6Al-4V substrates with polished or etched surfaces. Direct cell to surface attachments were observed across surfaces, though bridging across macroscale surface features occurred on rough substrates. Our results show that surface roughness, cell cytoskeleton and gross morphology can be correlated with the cell-material cross-sectional interface at the single cell level across multiple high-resolution imaging modalities. This work provides a platform method for further investigating mechanisms of the cell-material interface.
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Affiliation(s)
- A Cheng
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, U.S.A.,Department of Biomedical Engineering, Peking University, Beijing, China
| | - H Chen
- Department of Biomedical Engineering, Peking University, Beijing, China
| | - Z Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, U.S.A.,Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, U.S.A
| | - B D Boyan
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, U.S.A.,Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, U.S.A
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34
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Bioelectrical impedimetric sensor for single cell analysis based on nanoroughened quartz substrate; suitable for cancer therapeutic purposes. J Pharm Biomed Anal 2017; 142:315-323. [PMID: 28531834 DOI: 10.1016/j.jpba.2017.05.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 12/17/2022]
Abstract
Single cells analysis has been interested in recent decade. Apart from scientific benefits to achieve new biological phenomena in cell study, many diagnostic and therapeutic protocols in non-communicable diseases were introduced by single cell analysis. Moreover, non-invasive methods to maintain the investigated cell for time dependent monitoring has been widely studied because of its importance in some crucial cases such as drug resistance in cancer. Bioelectrical monitoring is one of such methods Although the procedures reported based on electrical probing might not induce cell disruption, indirect connection between recording electrodes and cell membrane (mostly in microfluidic approaches) reduced the quality of response and limited the precision of the results. Here, a bioelectronic sensor for monitoring the effect of anticancer drugs on single breast cancer cells was fabricated based on nano-roughened gold electrodes on a quartz substrate applied direct contacts to cell membrane. Whole of the surface except a microcircle surrounded the sensing region was passivated by overbaked photoresist layer. Cells were dropped on the sensor without the assistance of any micropipette or microfluidic systems and just individual regions for attachment of one cell has been opened on the sensing region arrays. MCF-7 cancer cells were time tracked under the effect of Paclitaxel and Mebendazole anti-tubulin drugs in low and high doses. Inducing non regulated depolymerization and polymerization in tubulin structures of the single cancer cells were monitored by the electrical signals recorded before and after drug treatment. Electrical responses of single cells to their incubation with drugs completely reflected their vitality and biological states which were confirmed by confocal imaging. This is one of the first investigation on bioelectrical monitoring of single cell's resistance to anticancer drugs.
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35
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McReynolds N, Cooke FGM, Chen M, Powis SJ, Dholakia K. Multimodal discrimination of immune cells using a combination of Raman spectroscopy and digital holographic microscopy. Sci Rep 2017; 7:43631. [PMID: 28256551 PMCID: PMC5335250 DOI: 10.1038/srep43631] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/24/2017] [Indexed: 11/25/2022] Open
Abstract
The ability to identify and characterise individual cells of the immune system under label-free conditions would be a significant advantage in biomedical and clinical studies where untouched and unmodified cells are required. We present a multi-modal system capable of simultaneously acquiring both single point Raman spectra and digital holographic images of single cells. We use this combined approach to identify and discriminate between immune cell populations CD4+ T cells, B cells and monocytes. We investigate several approaches to interpret the phase images including signal intensity histograms and texture analysis. Both modalities are independently able to discriminate between cell subsets and dual-modality may therefore be used a means for validation. We demonstrate here sensitivities achieved in the range of 86.8% to 100%, and specificities in the range of 85.4% to 100%. Additionally each modality provides information not available from the other providing both a molecular and a morphological signature of each cell.
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Affiliation(s)
- Naomi McReynolds
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
| | - Fiona G M Cooke
- School of Medicine, University of St Andrews, Fife, KY16 9TF, United Kingdom
| | - Mingzhou Chen
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
| | - Simon J Powis
- School of Medicine, University of St Andrews, Fife, KY16 9TF, United Kingdom
| | - Kishan Dholakia
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
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36
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Ember KJI, Hoeve MA, McAughtrie SL, Bergholt MS, Dwyer BJ, Stevens MM, Faulds K, Forbes SJ, Campbell CJ. Raman spectroscopy and regenerative medicine: a review. NPJ Regen Med 2017; 2:12. [PMID: 29302348 PMCID: PMC5665621 DOI: 10.1038/s41536-017-0014-3] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 01/22/2023] Open
Abstract
The field of regenerative medicine spans a wide area of the biomedical landscape-from single cell culture in laboratories to human whole-organ transplantation. To ensure that research is transferrable from bench to bedside, it is critical that we are able to assess regenerative processes in cells, tissues, organs and patients at a biochemical level. Regeneration relies on a large number of biological factors, which can be perturbed using conventional bioanalytical techniques. A versatile, non-invasive, non-destructive technique for biochemical analysis would be invaluable for the study of regeneration; and Raman spectroscopy is a potential solution. Raman spectroscopy is an analytical method by which chemical data are obtained through the inelastic scattering of light. Since its discovery in the 1920s, physicists and chemists have used Raman scattering to investigate the chemical composition of a vast range of both liquid and solid materials. However, only in the last two decades has this form of spectroscopy been employed in biomedical research. Particularly relevant to regenerative medicine are recent studies illustrating its ability to characterise and discriminate between healthy and disease states in cells, tissue biopsies and in patients. This review will briefly outline the principles behind Raman spectroscopy and its variants, describe key examples of its applications to biomedicine, and consider areas of regenerative medicine that would benefit from this non-invasive bioanalytical tool.
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Affiliation(s)
- Katherine J. I. Ember
- 0000 0004 1936 7988grid.4305.2School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ UK
- 0000 0004 1936 7988grid.4305.2MRC Centre for Regenerative Medicine, University of Edinburgh, 5 Little France Drive, Edinburgh, EH16 4UU UK
| | - Marieke A. Hoeve
- 0000 0004 1936 7988grid.4305.2MRC Centre for Regenerative Medicine, University of Edinburgh, 5 Little France Drive, Edinburgh, EH16 4UU UK
| | - Sarah L. McAughtrie
- 0000 0004 1936 7988grid.4305.2School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ UK
| | - Mads S. Bergholt
- 0000 0001 2113 8111grid.7445.2Department of Materials, Imperial College London, London, SW7 2AZ UK
- 0000 0001 2113 8111grid.7445.2Department of Bioengineering, Imperial College London, London, SW7 2AZ UK
- 0000 0001 2113 8111grid.7445.2Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ UK
| | - Benjamin J. Dwyer
- 0000 0004 1936 7988grid.4305.2MRC Centre for Regenerative Medicine, University of Edinburgh, 5 Little France Drive, Edinburgh, EH16 4UU UK
| | - Molly M. Stevens
- 0000 0001 2113 8111grid.7445.2Department of Materials, Imperial College London, London, SW7 2AZ UK
- 0000 0001 2113 8111grid.7445.2Department of Bioengineering, Imperial College London, London, SW7 2AZ UK
- 0000 0001 2113 8111grid.7445.2Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ UK
| | - Karen Faulds
- 0000000121138138grid.11984.35Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Building, 99 George Street, Glasgow, G1 1RD UK
| | - Stuart J. Forbes
- 0000 0004 1936 7988grid.4305.2MRC Centre for Regenerative Medicine, University of Edinburgh, 5 Little France Drive, Edinburgh, EH16 4UU UK
| | - Colin J. Campbell
- 0000 0004 1936 7988grid.4305.2School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ UK
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37
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Adamson K, Spain E, Prendergast U, Moran N, Forster RJ, Keyes TE. Peptide-Mediated Platelet Capture at Gold Micropore Arrays. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32189-32201. [PMID: 27933817 DOI: 10.1021/acsami.6b11137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ordered spherical cap gold cavity arrays with 5.4, 1.6, and 0.98 μm diameter apertures were explored as capture surfaces for human blood platelets to investigate the impact of surface geometry and chemical modification on platelet capture efficiency and their potential as platforms for surface enhanced Raman spectroscopy of single platelets. The substrates were chemically modified with single-constituent self-assembled monolayers (SAM) or mixed SAMs comprised of thiol-functionalized arginine-glycine-aspartic acid (RGD, a platelet integrin target) with or without 1-octanethiol (adhesion inhibitor). As expected, platelet adhesion was promoted and inhibited at RGD and alkanethiol modified surfaces, respectively. Platelet adhesion was reversible, and binding efficiency at the peptide modified substrates correlated inversely with pore diameter. Captured platelets underwent morphological change on capture, the extent of which depended on the topology of the underlying substrate. Regioselective capture of the platelets enabled study for the first time of the surface enhanced Raman spectroscopy of single blood platelets, yielding high quality Raman spectroscopy of individual platelets at 1.6 μm diameter pore arrays. Given the medical importance of blood platelets across a range of diseases from cancer to psychiatric illness, such approaches to platelet capture may provide a useful route to Raman spectroscopy for platelet related diagnostics.
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Affiliation(s)
- Kellie Adamson
- School of Chemical Sciences, Dublin City University , Dublin 9, Ireland
| | - Elaine Spain
- School of Chemical Sciences, Dublin City University , Dublin 9, Ireland
| | - Una Prendergast
- School of Chemical Sciences, Dublin City University , Dublin 9, Ireland
| | - Niamh Moran
- Dept. of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland , Dublin 2, Ireland
| | - Robert J Forster
- School of Chemical Sciences, Dublin City University , Dublin 9, Ireland
| | - Tia E Keyes
- School of Chemical Sciences, Dublin City University , Dublin 9, Ireland
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38
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Prats Mateu B, Harreither E, Schosserer M, Puxbaum V, Gludovacz E, Borth N, Gierlinger N, Grillari J. Label-free live cell imaging by Confocal Raman Microscopy identifies CHO host and producer cell lines. Biotechnol J 2016; 12. [PMID: 27440252 PMCID: PMC5244663 DOI: 10.1002/biot.201600037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 07/09/2016] [Accepted: 07/13/2016] [Indexed: 01/22/2023]
Abstract
As a possible viable and non-invasive method to identify high producing cells, Confocal Raman Microscopy was shown to be able to differentiate CHO host cell lines and derivative production clones. Cluster analysis of spectra and their derivatives was able to differentiate between different producer cell lines and a host, and also distinguished between an intracellular region of high lipid and protein content that in structure resembles the Endoplasmic Reticulum. This ability to identify the ER may be a major contributor to the identification of high producers. PCA enabled the discrimination even of host cell lines and their subclones with inherently higher production capacity. The method is thus a promising option that may contribute to early, non-invasive identification of high potential candidates during cell line development and possibly could also be used for proof of identity of established production clones.
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Affiliation(s)
- Batirtze Prats Mateu
- Institute of Physics and Materials Sciences, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Eva Harreither
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Verena Puxbaum
- ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
| | - Elisabeth Gludovacz
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Nicole Borth
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria.,ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
| | - Notburga Gierlinger
- Institute of Physics and Materials Sciences, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Johannes Grillari
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria.,ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
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39
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Galli R, Preusse G, Uckermann O, Bartels T, Krautwald-Junghanns ME, Koch E, Steiner G. In Ovo Sexing of Domestic Chicken Eggs by Raman Spectroscopy. Anal Chem 2016; 88:8657-63. [DOI: 10.1021/acs.analchem.6b01868] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | | | | | - Thomas Bartels
- Clinic
for Birds and Reptiles, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 17, D-04103 Leipzig, Germany
| | | | | | - Gerald Steiner
- Faculty
of Physics, Vilnius University, Sauletekio av. 9 bl. 3, LT-10222 Vilnius, Lithuania
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40
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Butler HJ, Ashton L, Bird B, Cinque G, Curtis K, Dorney J, Esmonde-White K, Fullwood NJ, Gardner B, Martin-Hirsch PL, Walsh MJ, McAinsh MR, Stone N, Martin FL. Using Raman spectroscopy to characterize biological materials. Nat Protoc 2016; 11:664-87. [PMID: 26963630 DOI: 10.1038/nprot.2016.036] [Citation(s) in RCA: 630] [Impact Index Per Article: 78.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Raman spectroscopy can be used to measure the chemical composition of a sample, which can in turn be used to extract biological information. Many materials have characteristic Raman spectra, which means that Raman spectroscopy has proven to be an effective analytical approach in geology, semiconductor, materials and polymer science fields. The application of Raman spectroscopy and microscopy within biology is rapidly increasing because it can provide chemical and compositional information, but it does not typically suffer from interference from water molecules. Analysis does not conventionally require extensive sample preparation; biochemical and structural information can usually be obtained without labeling. In this protocol, we aim to standardize and bring together multiple experimental approaches from key leaders in the field for obtaining Raman spectra using a microspectrometer. As examples of the range of biological samples that can be analyzed, we provide instructions for acquiring Raman spectra, maps and images for fresh plant tissue, formalin-fixed and fresh frozen mammalian tissue, fixed cells and biofluids. We explore a robust approach for sample preparation, instrumentation, acquisition parameters and data processing. By using this approach, we expect that a typical Raman experiment can be performed by a nonspecialist user to generate high-quality data for biological materials analysis.
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Affiliation(s)
- Holly J Butler
- Lancaster Environment Centre, Lancaster University, Lancaster, UK.,Centre for Global Eco-Innovation, Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Lorna Ashton
- Department of Chemistry, Lancaster University, Lancaster, UK
| | | | - Gianfelice Cinque
- Diamond Light Source, Harwell Science and Innovation Campus, Chilton, Oxfordshire, UK
| | - Kelly Curtis
- Department of Biomedical Physics, Physics and Astronomy, University of Exeter, Exeter, UK
| | - Jennifer Dorney
- Department of Biomedical Physics, Physics and Astronomy, University of Exeter, Exeter, UK
| | - Karen Esmonde-White
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Nigel J Fullwood
- Department of Biomedical and Life Sciences, School of Health and Medicine, Lancaster University, Lancaster, UK
| | - Benjamin Gardner
- Department of Biomedical Physics, Physics and Astronomy, University of Exeter, Exeter, UK
| | - Pierre L Martin-Hirsch
- Lancaster Environment Centre, Lancaster University, Lancaster, UK.,School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Michael J Walsh
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, USA.,Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Martin R McAinsh
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Nicholas Stone
- Biophotonics Research Unit, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
| | - Francis L Martin
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
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41
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Pang YW, Feng J, Daltoe F, Fatscher R, Gentleman E, Gentleman MM, Sharpe PT. Perivascular Stem Cells at the Tip of Mouse Incisors Regulate Tissue Regeneration. J Bone Miner Res 2016; 31:514-23. [PMID: 26391094 PMCID: PMC5833940 DOI: 10.1002/jbmr.2717] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/02/2015] [Accepted: 09/21/2015] [Indexed: 01/08/2023]
Abstract
Cells with in vitro properties similar to those of bone marrow stromal stem cells are present in tooth pulp as quiescent cells that are mobilized by damage. These dental pulp stem cells (DPSCs) respond to damage by stimulating proliferation and differentiation into odontoblast-like cells that form dentine to repair the damage. In continuously growing mouse incisors, tissue at the incisor tips is continuously being damaged by the shearing action between the upper and lower teeth acting to self-sharpen the tips. We investigated mouse incisor tips as a model for the role of DPSCs in a continuous natural repair/regeneration process. We show that the pulp at the incisor tip is composed of a disorganized mass of mineralized tissue produced by odontoblast-like cells. These cells become embedded into the mineralized tissue that is rapidly formed and then lost during feeding. Tetracycline labeling not only revealed the expected incorporation into newly synthesized dentine formation of the incisor but also a zone covering the pulp cavity at the tips of the incisors that is mineralized very rapidly. This tissue was dentine-like but had a significantly lower mineral content than dentine as determined by Raman spectroscopy. The mineral was more crystalline than dentine, indicative of small, defect-free mineral particles. To identify the origin of cells responsible for deposition of this mineralized tissue, we genetically labeled perivascular cells by crossing NG2(ERT2) Cre and Nestin Cre mice with reporter mice. A large number of pericyte-derived cells were visible in the pulp of incisor tips with some having elongated, odontoblast-like shapes. These results show that in mouse incisors, rapid, continuous mineralization occurs at the tip to seal off the pulp tissue from the external environment. The mineral is formed by perivascular-derived cells that differentiate into cells expressing dentin sialo-phosphoprotein (DSPP) and produce a dentine-like material in a process that functions as continuous natural tissue regeneration.
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Affiliation(s)
- Yvonne Wy Pang
- Department of Craniofacial Development and Stem Cell Biology, Dental Institute, Guy's Hospital, King's College London, London, UK
| | - Jifan Feng
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Felipe Daltoe
- Departamento de Patologia, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Brasil
| | - Robert Fatscher
- Materials Science and Engineering Department, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Eileen Gentleman
- Department of Craniofacial Development and Stem Cell Biology, Dental Institute, Guy's Hospital, King's College London, London, UK
| | - Molly M Gentleman
- Materials Science and Engineering Department, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Paul T Sharpe
- Department of Craniofacial Development and Stem Cell Biology, Dental Institute, Guy's Hospital, King's College London, London, UK
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Stetciura IY, Yashchenok A, Masic A, Lyubin EV, Inozemtseva OA, Drozdova MG, Markvichova EA, Khlebtsov BN, Fedyanin AA, Sukhorukov GB, Gorin DA, Volodkin D. Composite SERS-based satellites navigated by optical tweezers for single cell analysis. Analyst 2016; 140:4981-6. [PMID: 26040199 DOI: 10.1039/c5an00392j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Herein, we have designed composite SERS-active micro-satellites, which exhibit a dual role: (i) effective probes for determining cellular composition and (ii) optically movable and easily detectable markers. The satellites were synthesized by the layer-by-layer assisted decoration of silica microparticles with metal (gold or silver) nanoparticles and astralen in order to ensure satellite SERS-based microenvironment probing and satellite recognition, respectively. A combination of optical tweezers and Raman spectroscopy can be used to navigate the satellites to a certain cellular compartment and probe the intracellular composition following cellular uptake. In the future, this developed approach may serve as a tool for single cell analysis with nanometer precision due to the multilayer surface design, focusing on both extracellular and intracellular studies.
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43
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Nano-architecture of gustatory chemosensory bristles and trachea in Drosophila wings. Sci Rep 2015; 5:14198. [PMID: 26381332 PMCID: PMC4585653 DOI: 10.1038/srep14198] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 08/19/2015] [Indexed: 11/30/2022] Open
Abstract
In the Drosophila wing anterior margin, the dendrites of gustatory neurons occupy the interior of thin and long bristles that present tiny pores at their extremities. Many attempts to measure ligand-evoked currents in insect wing gustatory neurons have been unsuccessful for technical reasons. The functions of this gustatory activity therefore remain elusive and controversial. To advance our knowledge on this understudied tissue, we investigated the architecture of the wing chemosensory bristles and wing trachea using Raman spectroscopy and fluorescence microscopy. We hypothesized that the wing gustatory hair, an open-ended capillary tube, and the wing trachea constitute biological systems similar to nano-porous materials. We present evidence that argues in favour of the existence of a layer or a bubble of air beneath the pore inside the gustatory hair. We demonstrate that these hollow hairs and wing tracheal tubes fulfil conditions for which the physics of fluids applied to open-ended capillaries and porous materials are relevant. We also document that the wing gustatory hair and tracheal architectures are capable of trapping volatile molecules from the environment, which might increase the efficiency of their spatial detection by way of wing vibrations or during flight.
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44
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Chen M, McReynolds N, Campbell EC, Mazilu M, Barbosa J, Dholakia K, Powis SJ. The use of wavelength modulated Raman spectroscopy in label-free identification of T lymphocyte subsets, natural killer cells and dendritic cells. PLoS One 2015; 10:e0125158. [PMID: 25992777 PMCID: PMC4439084 DOI: 10.1371/journal.pone.0125158] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 03/20/2015] [Indexed: 12/24/2022] Open
Abstract
Determining the identity of cells of the immune system usually involves destructive fixation and chemical staining, or labeling with fluorescently labeled antibodies recognising specific cell surface markers. Completely label-free identification would be a significant advantage in conditions where untouched cells are a priority. We demonstrate here the use of Wavelength Modulated Raman Spectroscopy, to achieve label-free identification of purified, unfixed and untouched populations of major immune cell subsets isolated from healthy human donors. Using this technique we have been able to distinguish between CD4+ T lymphocytes, CD8+ T lymphocytes and CD56+ Natural Killer cells at specificities of up to 96%. Additionally, we have been able to distinguish between CD303+ plasmacytoid and CD1c+ myeloid dendritic cell subsets, the key initiator and regulatory cells of many immune responses. This demonstrates the ability to identify unperturbed cells of the immune system, and opens novel opportunities to analyse immunological systems and to develop fully label-free diagnostic technologies.
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Affiliation(s)
- Mingzhou Chen
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
| | - Naomi McReynolds
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
| | - Elaine C. Campbell
- School of Medicine, University of St Andrews, Fife, KY16 9TF, United Kingdom
| | - Michael Mazilu
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
| | - João Barbosa
- Instituto de Engenharia Biomedica, 4150–180, Porto, Portugal
| | - Kishan Dholakia
- SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, United Kingdom
- * E-mail: (KD); (SJP)
| | - Simon J. Powis
- School of Medicine, University of St Andrews, Fife, KY16 9TF, United Kingdom
- * E-mail: (KD); (SJP)
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45
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Single cell confocal Raman spectroscopy of human osteoarthritic chondrocytes: a preliminary study. Int J Mol Sci 2015; 16:9341-53. [PMID: 25918938 PMCID: PMC4463591 DOI: 10.3390/ijms16059341] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 04/18/2015] [Accepted: 04/20/2015] [Indexed: 11/24/2022] Open
Abstract
A great deal of effort has been focused on exploring the underlying molecular mechanism of osteoarthritis (OA) especially at the cellular level. We report a confocal Raman spectroscopic investigation on human osteoarthritic chondrocytes. The objective of this investigation is to identify molecular features and the stage of OA based on the spectral signatures corresponding to bio-molecular changes at the cellular level in chondrocytes. In this study, we isolated chondrocytes from human osteoarthritic cartilage and acquired Raman spectra from single cells. Major spectral differences between the cells obtained from different International Cartilage Repair Society (ICRS) grades of osteoarthritic cartilage were identified. During progression of OA, a decrease in protein content and an increase in cell death were observed from the vibrational spectra. Principal component analysis and subsequent cross-validation was able to associate osteoarthritic chondrocytes to ICRS Grade I, II and III with specificity 100.0%, 98.1%, and 90.7% respectively, while, sensitivity was 98.6%, 82.8%, and 97.5% respectively. The overall predictive efficiency was 92.2%. Our pilot study encourages further use of Raman spectroscopy as a noninvasive and label free technique for revealing molecular features associated with osteoarthritic chondrocytes.
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46
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Omar E. Current concepts and future of noninvasive procedures for diagnosing oral squamous cell carcinoma--a systematic review. Head Face Med 2015; 11:6. [PMID: 25889859 PMCID: PMC4396078 DOI: 10.1186/s13005-015-0063-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 02/04/2015] [Indexed: 12/21/2022] Open
Abstract
Background Oral squamous cell carcinoma (OSCC) has a remarkably high incidence worldwide, and a fairly serious prognosis, encouraging further research into advanced technologies for noninvasive methods of making early diagnoses, ideally in primary care settings. Objectives Our purpose was to examine the validity of using advanced noninvasive technologies in diagnosis of OSCC by identifying and evaluating relevant published reports. Data source MEDLINE, EMBASE, and CINAHL were searched to identify clinical trials and other information published between 1990 and 10 June 2014; the searches of MEDLINE and EMBASE were updated to November 2014. Study selection: Studies of noninvasive methods of diagnosing OSCC, including oral brush biopsy, optical biopsy, saliva-based oral cancer diagnosis, and others were included. Data extraction Data were abstracted and evaluated in duplicate for possible relevance on two occasions at an interval of 2 months before being included or excluded. Data synthesis This study identified 163 studies of noninvasive methods for diagnosing OSCC that met the inclusion criteria. These included six studies of oral brush biopsy, 42 of saliva-based oral diagnosis, and 115 of optical biopsy. Sixty nine of these studies were assessed by the modified version of the QUADAS instrument. Saliva-based oral cancer diagnosis and optical biopsy were found to be promising noninvasive methods for diagnosing OSCC. Limitation The strength of evidence was rated low for accuracy outcomes because the studies did not report important details required to assess the risk for bias. Conclusions It is clear that screening for and early detection of cancer and pre-cancerous lesions have the potential to reduce the morbidity and mortality of this disease. Advances in technologies for saliva-based oral diagnosis and optical biopsy are promising pathways for the future development of more effective noninvasive methods for diagnosing OSCC that are easy to perform clinically in primary care settings.
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Affiliation(s)
- Esam Omar
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Taibah University, Madinah, Saudi Arabia.
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47
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Sparse feature selection methods identify unexpected global cellular response to strontium-containing materials. Proc Natl Acad Sci U S A 2015; 112:4280-5. [PMID: 25831522 DOI: 10.1073/pnas.1419799112] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Despite the increasing sophistication of biomaterials design and functional characterization studies, little is known regarding cells' global response to biomaterials. Here, we combined nontargeted holistic biological and physical science techniques to evaluate how simple strontium ion incorporation within the well-described biomaterial 45S5 bioactive glass (BG) influences the global response of human mesenchymal stem cells. Our objective analyses of whole gene-expression profiles, confirmed by standard molecular biology techniques, revealed that strontium-substituted BG up-regulated the isoprenoid pathway, suggesting an influence on both sterol metabolite synthesis and protein prenylation processes. This up-regulation was accompanied by increases in cellular and membrane cholesterol and lipid raft contents as determined by Raman spectroscopy mapping and total internal reflection fluorescence microscopy analyses and by an increase in cellular content of phosphorylated myosin II light chain. Our unexpected findings of this strong metabolic pathway regulation as a response to biomaterial composition highlight the benefits of discovery-driven nonreductionist approaches to gain a deeper understanding of global cell-material interactions and suggest alternative research routes for evaluating biomaterials to improve their design.
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48
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Brozek-Pluska B, Kopec M, Niedzwiecka I, Morawiec-Sztandera A. Label-free determination of lipid composition and secondary protein structure of human salivary noncancerous and cancerous tissues by Raman microspectroscopy. Analyst 2015; 140:2107-13. [DOI: 10.1039/c4an01394h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The applications of optical spectroscopic methods in cancer detection open new possibilities in oncological diagnostics.
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Affiliation(s)
- Beata Brozek-Pluska
- Lodz University of Technology
- Institute of Applied Radiation Chemistry
- Laboratory of Laser Molecular Spectroscopy
- 93-590 Lodz
- Poland
| | - Monika Kopec
- Lodz University of Technology
- Institute of Applied Radiation Chemistry
- Laboratory of Laser Molecular Spectroscopy
- 93-590 Lodz
- Poland
| | - Izabela Niedzwiecka
- Medical University of Lodz
- Department of Head and Neck Cancer
- 90-419 Lodz
- Poland
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49
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Huang J, Liu S, Chen Z, Chen N, Pang F, Wang T. Distinguishing Cancerous Liver Cells Using Surface-Enhanced Raman Spectroscopy. Technol Cancer Res Treat 2014; 15:36-43. [DOI: 10.1177/1533034614561358] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/31/2014] [Indexed: 11/16/2022] Open
Abstract
Raman spectroscopy has been widely used in biomedical research and clinical diagnostics. It possesses great potential for the analysis of biochemical processes in cell studies. In this article, the surface-enhanced Raman spectroscopy (SERS) of normal and cancerous liver cells incubated with SERS active substrates (gold nanoparticle) was measured using confocal Raman microspectroscopy technology. The chemical components of the cells were analyzed through statistical methods for the SERS spectrum. Both the relative intensity ratio and principal component analysis (PCA) were used for distinguishing the normal liver cells (QSG-7701) from the hepatoma cells (SMMC-7721). The relative intensity ratio of the Raman spectra peaks such as I937/I1209, I1276/I1308, I1342/I1375, and I1402/I1435 was set as the judge boundary, and the sensitivity and the specificity using PCA method were calculated. The results indicated that the surface-enhanced Raman spectrum could provide the chemical information for distinguishing the normal cells from the cancerous liver cells and demonstrated that SERS technology possessed the possible applied potential for the diagnosis of liver cancer.
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Affiliation(s)
- Jing Huang
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
| | - Shupeng Liu
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
- Institute of Biomedical Engineering, Shanghai University, Shanghai, PR China
| | - Zhenyi Chen
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
| | - Na Chen
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
| | - Fufei Pang
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
| | - Tingyun Wang
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, PR China
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50
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Okotrub KA, Surovtsev NV, Semeshin VF, Omelyanchuk LV. Raman spectroscopy for DNA quantification in cell nucleus. Cytometry A 2014; 87:68-73. [DOI: 10.1002/cyto.a.22585] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/28/2014] [Accepted: 10/14/2014] [Indexed: 11/08/2022]
Affiliation(s)
- K. A. Okotrub
- Institute of Automation and Electrometry; Siberian Branch of the Russian Academy of Sciences; Novosibirsk 630090 Russia
| | - N. V. Surovtsev
- Institute of Automation and Electrometry; Siberian Branch of the Russian Academy of Sciences; Novosibirsk 630090 Russia
- Novosibirsk State University; Pirogova-2 Novosibisk 630090 Russia
| | - V. F. Semeshin
- Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences; Novosibirsk 630090 Russia
| | - L. V. Omelyanchuk
- Novosibirsk State University; Pirogova-2 Novosibisk 630090 Russia
- Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences; Novosibirsk 630090 Russia
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