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Vazquez-Zapien GJ, Martinez-Cuazitl A, Granados-Jimenez A, Sanchez-Brito M, Guerrero-Ruiz M, Camacho-Ibarra A, Miranda-Ruiz MA, Dox-Aguillón IS, Ramirez-Torres JA, Mata-Miranda MM. Skin wound healing improvement in diabetic mice through FTIR microspectroscopy after implanting pluripotent stem cells. APL Bioeng 2023; 7:016109. [PMID: 36779176 PMCID: PMC9908300 DOI: 10.1063/5.0130383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/25/2023] [Indexed: 02/10/2023] Open
Abstract
Diabetes is a chronic degenerative disease that carries multiple complications. One of the most important complications is the diabetic cutaneous complications, such as skin lesions, ulcerations, and diabetic foot, which are present in 30%-70% of the patients. Currently, the treatments for wound healing include growth factors and cytokines, skin substitutes, hyperbaric oxygen therapy, and skin grafts. However, these treatments are ineffective due to the complex mechanisms involved in developing unhealed wounds. Considering the aforementioned complications, regenerative medicine has focused on this pathology using stem cells to improve these complications. However, it is essential to mention that there is a poor biomolecular understanding of diabetic skin and the effects of treating it with stem cells. For this reason, herein, we investigated the employment of pluripotent stem cells (PSC) in the wound healing process by carrying out morphometric, histological, and Fourier-transform infrared microspectroscopy (FTIRM) analysis. The morphometric analysis was done through a photographic follow-up, measuring the lesion areas. For the histological analysis, hematoxylin & eosin and picrosirius red stains were used to examine the thickness of the epidermis and the cellularity index in the dermis as well as the content and arrangement of collagen type I and III fibers. Finally, for the FTIRM analysis, skin cryosections were obtained and analyzed by employing a Cassegrain objective of 16× of an FTIR microscope coupled to an FTIR spectrometer. For this purpose, 20 mice were divided into two groups according to the treatment they received: the Isotonic Salt Solution (ISS) group and the PSCs group (n = 10). Both groups were induced to diabetes, and six days after diabetes induction, an excisional lesion was made in the dorsal area. Furthermore, using microscopy and FTIRM analysis, the skin healing process on days 7 and 15 post-skin lesion excision was examined. The results showed that the wound healing process over time, considering the lesion size, was similar in both groups; however, the PSCs group evidenced hair follicles in the wound. Moreover, the histological analysis evidenced that the PSCs group exhibited granulation tissue, new vessels, and better polarity of the keratinocytes. In addition, the amount of collagen increased with a good deposition and orientation, highlighting that type III collagen fibers were more abundant in the PSCs. Finally, the FTIR analysis evidenced that the PSCs group exhibited a faster wound healing process. In conclusion, the wounds treated with PSCs showed a more rapid wound healing process, less inflammatory cellular infiltration, and more ordered structures than the ISS group.
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Affiliation(s)
| | | | - Alejandra Granados-Jimenez
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Miguel Sanchez-Brito
- Escuela Superior de Cómputo, Instituto Politécnico Nacional, Mexico City 07738, Mexico
| | - Melissa Guerrero-Ruiz
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Alejandro Camacho-Ibarra
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Misael A. Miranda-Ruiz
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Ian S. Dox-Aguillón
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Jesus A. Ramirez-Torres
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico
| | - Monica M. Mata-Miranda
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Mexico City 11200, Mexico,Author to whom correspondence should be addressed:
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Novel Curcumin-Encapsulated α-Tocopherol Nanoemulsion System and Its Potential Application for Wound Healing in Diabetic Animals. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7669255. [PMID: 36158895 PMCID: PMC9499807 DOI: 10.1155/2022/7669255] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/29/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
Objective This project was aimed at formulating a novel nanoemulsion system and evaluating it for open incision wound healing in diabetic animals. Methods The nanoemulsions were characterized for droplet size and surface charge, drug content, antioxidant and antimicrobial profiling, and wound healing potential in diabetic animals. The skin samples excised were also analyzed for histology, mechanical strength, and vibrational and thermal analysis. Results The optimized nanoemulsion (CR-NE-II) exhibited droplet size of26.76 ± 0.9 nm with negative surface charge (−10.86 ± 1.06 mV), was homogenously dispersed with drug content of68.05 ± 1.2%, released almost82.95 ± 2.2%of the drug within first 2 h of experiment with synergistic antioxidant (95 ± 2.1%) and synergistic antimicrobial activity against selected bacterial strains in comparison to blank nanoemulsion, and promoted significantly fast percent reepithelization (96.47%). The histological, vibrational, thermal, and strength analysis of selected skin samples depicted a uniform and even distribution of collagen fibers which translated into significant increase in strength of skin samples in comparison to the control group. Conclusions The optimized nanoemulsion system significantly downregulated the oxidative stress, enhanced collagen deposition, and precluded bacterial contamination of wound, thus accelerating the skin tissue regeneration process.
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Dicke SS, Alperstein AM, Schueler KL, Stapleton DS, Simonett SP, Fields CR, Chalyavi F, Keller MP, Attie AD, Zanni MT. Application of 2D IR Bioimaging: Hyperspectral Images of Formalin-Fixed Pancreatic Tissues and Observation of Slow Protein Degradation. J Phys Chem B 2021; 125:9517-9525. [PMID: 34396779 PMCID: PMC8769495 DOI: 10.1021/acs.jpcb.1c05554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We used two-dimensional IR bioimaging to study the structural heterogeneity of formalin-fixed mouse pancreas. Images were generated from the hyperspectral data sets by plotting quantities associated with the amide I vibrational mode, which is created by the backbone carbonyl stretch. Images that measure the fundamental vibrational frequencies, cross peaks, and anharmonic shifts are presented. Histograms are generated for each quantity, providing averaged values and distributions around the mean that serve as metrics for protein structures. Images were generated from tissue that had been stored in a formalin fixation for 3, 8, and 48 weeks. Over this period, all three metrics show that that the β-sheet content of the samples increased, consistent with protein aggregation. Our results indicate that formalin fixation does not entirely arrest the degradation of a protein structure in pancreas tissue.
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Affiliation(s)
- Sidney S Dicke
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Ariel M Alperstein
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Kathryn L Schueler
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Donald S Stapleton
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Shane P Simonett
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Caitlyn R Fields
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Farzaneh Chalyavi
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Mark P Keller
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Alan D Attie
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Martin T Zanni
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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Basit HM, Ali M, Shah MM, Shah SU, Wahab A, Albarqi HA, Alqahtani AA, Walbi IA, Khan NR. Microwave Enabled Physically Cross Linked Sodium Alginate and Pectin Film and Their Application in Combination with Modified Chitosan-Curcumin Nanoparticles. A Novel Strategy for 2nd Degree Burns Wound Healing in Animals. Polymers (Basel) 2021; 13:polym13162716. [PMID: 34451253 PMCID: PMC8399952 DOI: 10.3390/polym13162716] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/10/2021] [Accepted: 08/10/2021] [Indexed: 01/19/2023] Open
Abstract
This study reports microwave assisted physically cross-linked sodium alginate and pectin film and their testing in combination with modified chitosan-curcumin nanoparticles for skin tissue regeneration following 2nd degree burn wound. Film was formulated by solution casting method and physically cross-linked using microwave irradiation at frequency of 2450 MHz, power 750 Watt for different time intervals for optimization. The optimized formulation was analyzed for various physiochemical attributes. Afterwards, the optimized film and optimized modified chitosan-curcumin nanoparticles were tested in combination for skin regeneration potential following burn wound in vivo and skin samples extracted and tested for different attributes. The results indicated that the optimized film formulation (5 min microwave treatment) physicochemical attributes significantly enhanced addressing the properties required of a wound healing platform. The vibrational analysis indicated that the optimized film experienced significant rigidification of hydrophilic domains while the hydrophobic domains underwent significant fluidization which also resulted in significant increase in the transition temperatures and system enthalpies of both polymer moieties with microwave treatment. The combined film and nanoparticles application significantly increased protein content in the wounds which were evident from higher absorbance ratios of amide-I and amide-II (2.15 ± 0.001), significantly higher melting transition temperature and enthalpy (∆T = 167.2 ± 15.4 °C, ∆H = 510.7 ± 20.1 J/g) and higher tensile strength (14.65 ± 0.8 MPa) with significantly enhanced percent re-epithelization (99.9934 ± 2.56) in comparison to other treatments. The combined application of film and nanoparticles may prove to be a new novel treatment strategy for 2nd degree burn wound healing.
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Affiliation(s)
- Hafiz Muhammad Basit
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan; (H.M.B.); (M.A.); (S.U.S.)
- Gomal Centre for Skin/Regenerative Medicine and Drug Delivery Research, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan
| | - Muhammad Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan; (H.M.B.); (M.A.); (S.U.S.)
- Gomal Centre for Skin/Regenerative Medicine and Drug Delivery Research, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan
| | - Mian Mufarih Shah
- Department of Medicine MTI, Hayatabad Medical Complex, Peshawar 25000, Pakistan;
| | - Shefaat Ullah Shah
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan; (H.M.B.); (M.A.); (S.U.S.)
- Gomal Centre for Skin/Regenerative Medicine and Drug Delivery Research, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan
| | - Abdul Wahab
- Department of Pharmacy, Kohat University of Science and Technology, Kohat 26000, Pakistan;
| | - Hassan A. Albarqi
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia; (H.A.A.); (A.A.A.)
| | - Abdulsalam A. Alqahtani
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia; (H.A.A.); (A.A.A.)
| | - Ismail A. Walbi
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia;
| | - Nauman Rahim Khan
- Gomal Centre for Skin/Regenerative Medicine and Drug Delivery Research, Faculty of Pharmacy, Gomal University, DIKhan 29050, Pakistan
- Department of Pharmacy, Kohat University of Science and Technology, Kohat 26000, Pakistan;
- Correspondence: ; Tel.: +92-34-5983-4257
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Kazarian SG. Perspectives on infrared spectroscopic imaging from cancer diagnostics to process analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119413. [PMID: 33461133 DOI: 10.1016/j.saa.2020.119413] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 05/20/2023]
Abstract
This perspective paper discusses the recent and potential developments in the application of infrared spectroscopic imaging, with a focus on Fourier transform infrared (FTIR) spectroscopic imaging. The current state-of-the-art has been briefly reported, that includes recent trends and advances in applications of FTIR spectroscopic imaging to biomedical systems. Here, some new opportunities for research in the biomedical field, particularly for cancer diagnostics, and also in the engineering field of process analysis; as well as challenges in FTIR spectroscopic imaging are discussed. Current and future prospects that will bring spectroscopic imaging technologies to the frontier of advanced medical diagnostics and to process analytics in engineering applications will be outlined in this opinion paper.
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Affiliation(s)
- Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
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Chrabaszcz K, Kaminska K, Song CL, Morikawa J, Kujdowicz M, Michalczyk E, Smeda M, Stojak M, Jasztal A, Kazarian SG, Malek K. Fourier Transform Infrared Polarization Contrast Imaging Recognizes Proteins Degradation in Lungs upon Metastasis from Breast Cancer. Cancers (Basel) 2021; 13:cancers13020162. [PMID: 33418894 PMCID: PMC7825053 DOI: 10.3390/cancers13020162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/18/2020] [Accepted: 01/01/2021] [Indexed: 01/19/2023] Open
Abstract
Simple Summary Several lung extracellular matrix (ECM) proteins are involved in the formation of a metastatic niche in pulmonary metastasis and they accompany the cancer progression. Its gradual remodeling does not induce compositional changes of its components, but it is related to the re-distribution of individual proteins, their cross-linking and spatial arrangement within the tissue. The combination of FTIR and FTIR polarization contrast (PCI) imaging, as rapid, non-destructive, and label-free techniques, allows for the determination of protein alternations occurring in lungs that are affected by breast cancer metastasis. Both have the potential to characterize biochemical changes of the metastatic target, can determine phenotypes of tissue structures, and deliver a novel spectroscopic marker panel for the recognition of metastasis environment. Abstract The current understanding of mechanisms underlying the formation of metastatic tumors has required multi-parametric methods. The tissue micro-environment in secondary organs is not easily evaluated due to complex interpretation with existing tools. Here, we demonstrate the detection of structural modifications in proteins using emerging Fourier Transform Infrared (FTIR) imaging combined with light polarization. We investigated lungs affected by breast cancer metastasis in the orthotopic murine model from the pre-metastatic phase, through early micro-metastasis, up to an advanced phase, in which solid tumors are developed in lung parenchyma. The two IR-light polarization techniques revealed, for the first time, the orientational ordering of proteins upon the progression of pulmonary metastasis of breast cancer. Their distribution was complemented by detailed histological examination. Polarized contrast imaging recognised tissue structures of lungs and showed deformations in protein scaffolds induced by inflammatory infiltration, fibrosis, and tumor growth. This effect was recognised by not only changes in absorbance of the spectral bands but also by the band shifts and the appearance of new signals. Therefore, we proposed this approach as a useful tool for evaluation of progressive and irreversible molecular changes that occur sequentially in the metastatic process.
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Affiliation(s)
- Karolina Chrabaszcz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2 St., 30-387 Krakow, Poland; (K.C.); (K.K.); (M.K.); (E.M.)
| | - Katarzyna Kaminska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2 St., 30-387 Krakow, Poland; (K.C.); (K.K.); (M.K.); (E.M.)
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Bobrzynskiego 14 St., 30-384 Krakow, Poland; (M.S.); (M.S.); (A.J.)
| | - Cai Li Song
- Department of Chemical Engineering, Imperial London College, South Kensington Campus, London SW72AZ, UK;
| | - Junko Morikawa
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8550, Japan;
| | - Monika Kujdowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2 St., 30-387 Krakow, Poland; (K.C.); (K.K.); (M.K.); (E.M.)
- Department of Pathomorphology, Medical Faculty, Jagiellonian University Medical College, Grzegorzecka 16 St., 31-531 Krakow, Poland
| | - Ewelina Michalczyk
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2 St., 30-387 Krakow, Poland; (K.C.); (K.K.); (M.K.); (E.M.)
| | - Marta Smeda
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Bobrzynskiego 14 St., 30-384 Krakow, Poland; (M.S.); (M.S.); (A.J.)
| | - Marta Stojak
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Bobrzynskiego 14 St., 30-384 Krakow, Poland; (M.S.); (M.S.); (A.J.)
| | - Agnieszka Jasztal
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Bobrzynskiego 14 St., 30-384 Krakow, Poland; (M.S.); (M.S.); (A.J.)
| | - Sergei G. Kazarian
- Department of Chemical Engineering, Imperial London College, South Kensington Campus, London SW72AZ, UK;
- Correspondence: (S.G.K.); (K.M.)
| | - Kamilla Malek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2 St., 30-387 Krakow, Poland; (K.C.); (K.K.); (M.K.); (E.M.)
- Correspondence: (S.G.K.); (K.M.)
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Mechanical and structural properties of different types of human aortic atherosclerotic plaques. J Mech Behav Biomed Mater 2020; 109:103837. [PMID: 32543403 DOI: 10.1016/j.jmbbm.2020.103837] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/16/2020] [Accepted: 04/26/2020] [Indexed: 11/23/2022]
Abstract
Atherosclerotic plaques are characterized by structural heterogeneity affecting aortic behaviour under mechanical loading. There is evidence of direct connections between the structural plaque arrangement and the risk of plaque rupture. As a consequence of aortic plaque rupture, plaque components are transferred by the bloodstream to smaller vessels, resulting in acute cardiovascular events with a poor prognosis, such as heart attacks or strokes. Hence, evaluation of the composition, structure, and biochemical profile of atherosclerotic plaques seems to be of great importance to assess the properties of a mechanically induced failure, indicating the strength and rupture vulnerability of plaque. The main goal of the research was to determine experimentally under uniaxial loading the mechanical properties of different types of the human abdominal aorta and human aortic atherosclerotic plaques identified based on vibrational spectra (ATR-FTIR and FT-Raman spectroscopy) analysis and validated by histological staining. The potential of spectroscopic techniques as a useful histopathological tool was demonstrated. Three types of atherosclerotic plaques - predominantly calcified (APC), lipid (APL), and fibrotic (APF) - were distinguished and confirmed by histopathological examinations. Compared to the normal aorta, fibrotic plaques were stiffer (median of EH for circumferential and axial directions, respectively: 8.15 MPa and 6.56 MPa) and stronger (median of σM for APLc = 1.57 MPa and APLa = 1.64 MPa), lipidic plaques were the weakest (median of σM for APLc = 0.76 MPa and APLa = 0.51 MPa), and calcified plaques were the stiffest (median of EH for circumferential and axial directions, respectively: 13.23 MPa and 6.67 MPa). Therefore, plaques detected as predominantly lipid and calcified are most prone to rupture; however, the failure process reflected by the simplification of the stress-stretch characteristics seems to vary depending on the plaque composition.
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Mata-Miranda MM, Martinez-Cuazitl A, Guerrero-Robles CI, Noriega-Gonzalez JE, Garcia-Hernandez JS, Vazquez-Zapien GJ. Biochemical similarity between cultured chondrocytes and in situ chondrocytes by chemometric analysis from FTIR microspectroscopy. ACTA ACUST UNITED AC 2019; 24:e00391. [PMID: 31763202 PMCID: PMC6864338 DOI: 10.1016/j.btre.2019.e00391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 10/24/2019] [Accepted: 10/24/2019] [Indexed: 11/25/2022]
Abstract
Background aims Fourier Transform Infrared Micro-spectroscopy (FTIRM) is an emerging tool that obtains images with biochemical information of samples that are too small to be chemically analyzed by conventional Fourier transform infrared (FTIR) spectroscopy techniques. So, the central objective of this project was to study the biochemical similarity between articular and cultured chondrocytes by chemometric analysis from FTIRM. Methods Nine samples of knee articular cartilage were obtained; each sample was divided into two fragments, one portion was used for FTIRM characterization in situ, and from another part, chondrocytes were obtained to be cultured (in vitro), which were subjected to an FTIRM to characterize their biomolecular components. The FTIRM spectra were normalized, and the second derivative was calculated. From these data, principal component analysis (PCA) and a chemometric comparison between in situ and cultured chondrocytes were carried out. Finally, the biochemical mapping was conducted obtaining micro-FTIR imaging. Results FTIRM spectra of in situ and in vitro chondrocytes were obtained, and different biomolecules were detected, highlighting lipids, proteins, glycosaminoglycans, collagen, and aggrecan. Despite slight differences in the FTIR spectra, the PCA proved the organic similarity between in situ chondrocytes and cultured chondrocytes, which was also observed in the analysis of the ratios related to the degradation of the articular cartilage and collagen. In the same way, the ability of the FTIRM to characterize the molecular biodistribution was demonstrated. Conclusion The biochemical composition and biodistribution analysis using FTIRM have been useful for comparing cultured chondrocytes and in situ chondrocytes.
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Key Words
- ACI, autologous chondrocyte implantation
- Biochemical mapping
- Biomolecules
- Chemometric analysis
- Cultured chondrocytes
- ECM, extracellular matrix
- FTIR Micro-spectroscopy
- FTIR, Fourier Transform Infrared
- FTIRI, Micro-FTIR images
- FTIRM, Fourier Transform Infrared Micro-spectroscopy
- GAGs, glycosaminoglycans
- MCT, Mercury-Cadmium-Tellurium
- OA, osteoarthritis
- PCA, principal component analysis
- PGs, proteoglycans
- SNV, standard normal variate
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Affiliation(s)
- Monica Maribel Mata-Miranda
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico
| | - Adriana Martinez-Cuazitl
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico.,Hospital Central Militar, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico
| | - Carla Ivonne Guerrero-Robles
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico
| | - Jesus Emmanuel Noriega-Gonzalez
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico
| | | | - Gustavo Jesus Vazquez-Zapien
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Ciudad de México, 11200, Mexico
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Huerta-Nuñez LFE, Gutierrez-Iglesias G, Martinez-Cuazitl A, Mata-Miranda MM, Alvarez-Jiménez VD, Sánchez-Monroy V, Golberg A, González-Díaz CA. A biosensor capable of identifying low quantities of breast cancer cells by electrical impedance spectroscopy. Sci Rep 2019; 9:6419. [PMID: 31015522 PMCID: PMC6478841 DOI: 10.1038/s41598-019-42776-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/28/2019] [Indexed: 12/29/2022] Open
Abstract
Breast cancer (BC) is a malignant disease with a high prevalence worldwide. The main cause of death is not the primary tumor, but instead the spread of tumor cells to distant sites. The aim of the present study was to examine a new method for the detection of cancer cells in aqueous medium using bioimpedance spectroscopy assisted with magnetic nanoparticles (MNP's) exposure to a constant magnetic field. The spectroscopic patterns were identified for three breast cancer cell lines. Each BC cell line represents a different pathologic stage: the early stage (MCF-7), invasive phase (MDA-MB-231) and metastasis (SK-BR-3). For this purpose, bioimpedance measurements were carried out at a certain frequency range with the aid of nanoprobes, consisting of magnetic nanoparticles (MNPs) coupled to a monoclonal antibody. The antibody was specific for the predominant cell surface protein for each cell line, which was identified by using RT-qPCR and flow cytometry. Accordingly, EpCAM corresponds to MCF-7, MUC-1 to MDA-MB-231, and HER-2 to SK-BR-3. Despite their low concentrations, BC cells could be detected by impedance spectroscopy. Hence, this methodology should permit the monitoring of circulating tumor cells (CTC) and therefore help to prevent recurrences and metastatic processes during BC treatment.
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Affiliation(s)
- L F E Huerta-Nuñez
- Escuela Militar de Graduados de Sanidad-Universidad del Ejército y Fuerza Aérea, México City, Mexico
- Escuela Superior de Medicina-Instituto Politécnico Nacional, México City, Mexico
| | - G Gutierrez-Iglesias
- Escuela Superior de Medicina-Instituto Politécnico Nacional, México City, Mexico
| | - A Martinez-Cuazitl
- Escuela Militar de Medicina-Universidad del Ejército y Fuerza Aérea, México City, Mexico
| | - M M Mata-Miranda
- Escuela Militar de Medicina-Universidad del Ejército y Fuerza Aérea, México City, Mexico
| | | | - V Sánchez-Monroy
- Escuela Nacional de Medicina y Homeopatía-Instituto Politécnico Nacional, México City, Mexico
| | - Alexander Golberg
- Porter School of Environmental and Earth Sciences, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - C A González-Díaz
- Escuela Superior de Medicina-Instituto Politécnico Nacional, México City, Mexico.
- Porter School of Environmental and Earth Sciences, Tel Aviv University, Tel Aviv-Yafo, Israel.
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10
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Palombo F, Tamagnini F, Jeynes JCG, Mattana S, Swift I, Nallala J, Hancock J, Brown JT, Randall AD, Stone N. Detection of Aβ plaque-associated astrogliosis in Alzheimer's disease brain by spectroscopic imaging and immunohistochemistry. Analyst 2019; 143:850-857. [PMID: 29230441 PMCID: PMC5851084 DOI: 10.1039/c7an01747b] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Correlative vibrational spectroscopy and immunohistochemistry reveal astroglial processes co-localised with the lipid-rich shell of Aβ plaques.
Recent work using micro-Fourier transform infrared (μFTIR) imaging has revealed that a lipid-rich layer surrounds many plaques in post-mortem Alzheimer's brain. However, the origin of this lipid layer is not known, nor is its role in the pathogenesis of Alzheimer's disease (AD). Here, we studied the biochemistry of plaques in situ using a model of AD. We combined FTIR, Raman and immunofluorescence images, showing that astrocyte processes co-localise with the lipid ring surrounding many plaques. We used μFTIR imaging to rapidly measure chemical signatures of plaques over large fields of view, and selected plaques for higher resolution analysis with Raman microscopy. Raman maps showed similar lipid rings and dense protein cores as in FTIR images, but also revealed cell bodies. We confirmed the presence of plaques using amylo-glo staining, and detected astrocytes using immunohistochemistry, revealing astrocyte co-localisation with lipid rings. This work is important because it correlates biochemical changes surrounding the plaque with the biological process of astrogliosis.
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Affiliation(s)
- Francesca Palombo
- University of Exeter, School of Physics and Astronomy, Exeter EX4 4QL, UK.
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11
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Andrew Chan KL, Kazarian SG. Attenuated total reflection Fourier-transform infrared (ATR-FTIR) imaging of tissues and live cells. Chem Soc Rev 2016; 45:1850-64. [PMID: 26488803 DOI: 10.1039/c5cs00515a] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
FTIR spectroscopic imaging is a label-free, non-destructive and chemically specific technique that can be utilised to study a wide range of biomedical applications such as imaging of biopsy tissues, fixed cells and live cells, including cancer cells. In particular, the use of FTIR imaging in attenuated total reflection (ATR) mode has attracted much attention because of the small, but well controlled, depth of penetration and corresponding path length of infrared light into the sample. This has enabled the study of samples containing large amounts of water, as well as achieving an increased spatial resolution provided by the high refractive index of the micro-ATR element. This review is focused on discussing the recent developments in FTIR spectroscopic imaging, particularly in ATR sampling mode, and its applications in the biomedical science field as well as discussing the future opportunities possible as the imaging technology continues to advance.
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Affiliation(s)
- K L Andrew Chan
- Institute of Pharmaceutical Science, King's College London, SE1 9NH, UK
| | - Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
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12
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Loutherback K, Birarda G, Chen L, Holman HYN. Microfluidic approaches to synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectral microscopy of living biosystems. Protein Pept Lett 2016; 23:273-82. [PMID: 26732243 PMCID: PMC4997923 DOI: 10.2174/0929866523666160106154035] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/30/2015] [Accepted: 01/05/2016] [Indexed: 02/07/2023]
Abstract
A long-standing desire in biological and biomedical sciences is to be able to probe cellular chemistry as biological processes are happening inside living cells. Synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectral microscopy is a label-free and nondestructive analytical technique that can provide spatiotemporal distributions and relative abundances of biomolecules of a specimen by their characteristic vibrational modes. Despite great progress in recent years, SR-FTIR imaging of living biological systems remains challenging because of the demanding requirements on environmental control and strong infrared absorption of water. To meet this challenge, microfluidic devices have emerged as a method to control the water thickness while providing a hospitable environment to measure cellular processes and responses over many hours or days. This paper will provide an overview of microfluidic device development for SR-FTIR imaging of living biological systems, provide contrast between the various techniques including closed and open-channel designs, and discuss future directions of development within this area. Even as the fundamental science and technological demonstrations develop, other ongoing issues must be addressed; for example, choosing applications whose experimental requirements closely match device capabilities, and developing strategies to efficiently complete the cycle of development. These will require imagination, ingenuity and collaboration.
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Affiliation(s)
| | | | | | - Hoi-Ying N Holman
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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13
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Palombo F, Madami M, Fioretto D, Nallala J, Barr H, David A, Stone N. Chemico-mechanical imaging of Barrett's oesophagus. JOURNAL OF BIOPHOTONICS 2016; 9:694-700. [PMID: 27088552 DOI: 10.1002/jbio.201600038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Barrett's oesophagus is a condition characterized by a change in the lining of the oesophagus that markedly increases the risk of adenocarcinoma. We demonstrate the first site-matched application of Brillouin microscopy, Raman microscopy and FTIR micro-spectroscopic imaging to ex-vivo epithelial tissue - Barrett's oesophagus. The mechanical and chemical characters of the epithelium were assessed in histological sections from a patient subjected to endoscopic oesophageal biopsy. Previous studies have shown that both these properties change within the oesophageal wall, owing to the presence of distinct cellular and extracellular constituents which are putatively affected by oesophageal cancer. Brillouin microscopy enables maps of elasticity of the epithelium to be obtained, whilst Raman and FTIR imaging provide 'chemical images' without the need for labelling or staining. This site-matched approach provides a valuable platform for investigating the structure, biomechanics and composition of complex heterogeneous systems. A combined Brillouin-Raman device has potential for in-vivo diagnosis of pathology. First application of site-matched micro Brillouin, Raman and FTIR spectroscopic imaging to epithelial tissue in Barrett's oesophagus.
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Affiliation(s)
| | - Marco Madami
- University of Perugia, Department of Physics and Geology, Perugia, I-06100, Italy
| | - Daniele Fioretto
- University of Perugia, Department of Physics and Geology, Perugia, I-06100, Italy
| | | | - Hugh Barr
- Gloucestershire Royal Hospital, Gloucester, GL1 3NN, UK
| | - Antoine David
- University of Exeter, School of Physics, Exeter, EX4 4QL, UK
- ENSEIRB-MATMECA Telecommunications Department, Bordeaux, F-33402, France
| | - Nick Stone
- University of Exeter, School of Physics, Exeter, EX4 4QL, UK.
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14
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Palombo F, Winlove CP, Edginton RS, Green E, Stone N, Caponi S, Madami M, Fioretto D. Biomechanics of fibrous proteins of the extracellular matrix studied by Brillouin scattering. J R Soc Interface 2015; 11:20140739. [PMID: 25297313 DOI: 10.1098/rsif.2014.0739] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Brillouin light scattering (BLS) spectroscopy is a technique that is able to detect thermally excited phonons within a material. The speed of propagation of these phonons can be determined from the magnitude of the Brillouin frequency shift between incident and scattered light, thereby providing a measure of the mechanical properties of the material in the gigahertz range. The mechanical properties of the extracellular matrices of biological tissues and their constituent biopolymers are important for normal tissue function and disturbances in these properties are widely implicated in disease. BLS offers the prospect of measuring mechanical properties on a microscopic scale in living tissues, thereby providing insights into structure-function relationships under normal and pathological conditions. In this study, we investigated BLS in collagen and elastin-the fibrous proteins of the extracellular matrix (ECM). Measurements were made on type I collagen in rat tail tendon, type II collagen in articular cartilage and nuchal ligament elastin. The dependence of the BLS spectrum on fibre orientation was investigated in a backscattering geometry using a reflective substrate. Two peaks, a bulk mode arising from phonon propagation along a quasi-radial direction to the fibre axis and a mode parallel to the surface, depending on sample orientation relative to the fibre axis, could be distinguished. The latter peak was fitted to a model of wave propagation through a hexagonally symmetric elastic solid, and the five components of the elasticity tensor were combined to give axial and transverse Young's, shear and bulk moduli of the fibres. These were 10.2, 8.3, 3.2 and 10.9 GPa, and 6.1, 5.3, 1.9 and 8 GPa for dehydrated type I collagen and elastin, respectively. The former values are close to those previously reported. A microfocused BLS approach was also applied providing selection of single fibres. The moduli of collagen and elastin are much higher than those measured at lower frequency using macroscopic strains, and the difference between them is much less. We therefore believe, like previous investigators, that molecular-scale viscoelastic effects are responsible for the frequency dependence of the fibre biomechanics. Combining BLS with larger-scale mechanical testing methods therefore should, in the future, provide a means of following the evolution of mechanical properties in the formation of the complex structures found in the ECM.
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Affiliation(s)
| | | | | | - Ellen Green
- School of Physics, University of Exeter, Exeter EX4 4QL, UK
| | - Nick Stone
- School of Physics, University of Exeter, Exeter EX4 4QL, UK
| | - Silvia Caponi
- Istituto Officina dei Materiali del CNR (CNR-IOM) - Unità di Perugia, c/o Dipartimento di Fisica e Geologia, Perugia I-06100, Italy
| | - Marco Madami
- Dipartimento di Fisica e Geologia, Università di Perugia, Perugia I-06100, Italy
| | - Daniele Fioretto
- Dipartimento di Fisica e Geologia, Università di Perugia, Perugia I-06100, Italy Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Perugia I-06100, Italy
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15
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Effects of Low Carbohydrate High Protein (LCHP) diet on atherosclerotic plaque phenotype in ApoE/LDLR-/- mice: FT-IR and Raman imaging. Sci Rep 2015; 5:14002. [PMID: 26391802 PMCID: PMC4585723 DOI: 10.1038/srep14002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 08/03/2015] [Indexed: 11/09/2022] Open
Abstract
Low Carbohydrate High Protein (LCHP) diet displays pro-atherogenic effects, however, the exact mechanisms involved are still unclear. Here, with the use of vibrational imaging, such as Fourier transform infrared (FT-IR) and Raman (RS) spectroscopies, we characterize biochemical content of plaques in Brachiocephalic Arteries (BCA) from ApoE/LDLR(-/-) mice fed LCHP diet as compared to control, recomended by American Institute of Nutrition, AIN diet. FT-IR images were taken from 6-10 sections of BCA from each mice and were complemented with RS measurements with higher spatial resolution of chosen areas of plaque sections. In aortic plaques from LCHP fed ApoE/LDLR(-/-) mice, the content of cholesterol and cholesterol esters was increased, while that of proteins was decreased as evidenced by global FT-IR analysis. High resolution imaging by RS identified necrotic core/foam cells, lipids (including cholesterol crystals), calcium mineralization and fibrous cap. The decreased relative thickness of the outer fibrous cap and the presence of buried caps were prominent features of the plaques in ApoE/LDLR(-/-) mice fed LCHP diet. In conclusion, FT-IR and Raman-based imaging provided a complementary insight into the biochemical composition of the plaque suggesting that LCHP diet increased plaque cholesterol and cholesterol esters contents of atherosclerotic plaque, supporting the cholesterol-driven pathogenesis of LCHP-induced atherogenesis.
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16
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Hemmasizadeh A, Tsamis A, Cheheltani R, Assari S, D'Amore A, Autieri M, Kiani MF, Pleshko N, Wagner WR, Watkins SC, Vorp D, Darvish K. Correlations between transmural mechanical and morphological properties in porcine thoracic descending aorta. J Mech Behav Biomed Mater 2015; 47:12-20. [PMID: 25837340 DOI: 10.1016/j.jmbbm.2015.03.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 02/27/2015] [Accepted: 03/10/2015] [Indexed: 02/02/2023]
Abstract
Determination of correlations between transmural mechanical and morphological properties of aorta would provide a quantitative baseline for assessment of preventive and therapeutic strategies for aortic injuries and diseases. A multimodal and multidisciplinary approach was adopted to characterize the transmural morphological properties of descending porcine aorta. Histology and multi-photon microscopy were used for describing the media layer micro-architecture in the circumferential-radial plane, and Fourier Transform infrared imaging spectroscopy was utilized for determining structural protein, and total protein content. The distributions of these quantified properties across the media thickness were characterized and their relationship with the mechanical properties from a previous study was determined. Our findings indicate that there is an increasing trend in the instantaneous Young׳s modulus (E), elastic lamella density (ELD), structural protein (SPR), total protein (TPR), and elastin and collagen circumferential percentage (ECP and CCP) from the inner towards the outer layers. Two regions with equal thickness (inner and outer halves) were determined with significantly different morphological and material properties. The results of this study represent a substantial step toward anatomical characterization of the aortic wall building blocks and establishment of a foundation for quantifying the role of microstructural components on the functionality of aorta.
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Affiliation(s)
- Ali Hemmasizadeh
- Departments of Mechanical Engineering, Temple University, Philadelphia, USA
| | - Alkiviadis Tsamis
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rabee Cheheltani
- Departments of Mechanical Engineering, Temple University, Philadelphia, USA
| | - Soroush Assari
- Departments of Mechanical Engineering, Temple University, Philadelphia, USA
| | - Antonio D'Amore
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael Autieri
- Departments of Physiology, Temple University, Philadelphia, USA
| | - Mohammad F Kiani
- Departments of Mechanical Engineering, Temple University, Philadelphia, USA; Departments of Bioengineering, Temple University, Philadelphia, USA
| | - Nancy Pleshko
- Departments of Bioengineering, Temple University, Philadelphia, USA
| | - William R Wagner
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Simon C Watkins
- Center for Biologic Imaging, University of Pittsburgh, Pittsburgh, PA, USA
| | - David Vorp
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kurosh Darvish
- Departments of Mechanical Engineering, Temple University, Philadelphia, USA; Departments of Bioengineering, Temple University, Philadelphia, USA.
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17
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Ling S, Qi Z, Shao Z, Chen X. Determination of phase behaviour in all protein blend materials with multivariate FTIR imaging technique. J Mater Chem B 2015; 3:834-839. [DOI: 10.1039/c4tb01808g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Multivariate FTIR imaging technique is introduced to analyse a silk fibroin/soy protein blend, which shows that the silk fibroin domains are dispersed in soy protein matrix.
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Affiliation(s)
- Shengjie Ling
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Laboratory of Advanced Materials
- Fudan University
- Shanghai
| | - Zeming Qi
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- People's Republic of China
| | - Zhengzhong Shao
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Laboratory of Advanced Materials
- Fudan University
- Shanghai
| | - Xin Chen
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Laboratory of Advanced Materials
- Fudan University
- Shanghai
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18
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Palombo F, Madami M, Stone N, Fioretto D. Mechanical mapping with chemical specificity by confocal Brillouin and Raman microscopy. Analyst 2014; 139:729-33. [PMID: 24396853 DOI: 10.1039/c3an02168h] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We describe the first application of confocal Brillouin and Raman microscopy to ex vivo human epithelial tissue - Barrett's oesophagus. This non-invasive label-free approach provides high-resolution mechanical mapping with chemical specificity, opening the route to a new integrated method for multiple biomedical and bioengineering applications, and potentially in vivo real-time diagnostics.
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Affiliation(s)
- F Palombo
- University of Exeter, School of Physics, Exeter EX4 4QJ, UK.
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19
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Cheheltani R, McGoverin CM, Rao J, Vorp DA, Kiani MF, Pleshko N. Fourier transform infrared spectroscopy to quantify collagen and elastin in an in vitro model of extracellular matrix degradation in aorta. Analyst 2014; 139:3039-47. [PMID: 24761431 PMCID: PMC4096121 DOI: 10.1039/c3an02371k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Extracellular matrix (ECM) is a key component and regulator of many biological tissues including aorta. Several aortic pathologies are associated with significant changes in the composition of the matrix, especially in the content, quality and type of aortic structural proteins, collagen and elastin. The purpose of this study was to develop an infrared spectroscopic methodology that is comparable to biochemical assays to quantify collagen and elastin in aorta. Enzymatically degraded porcine aorta samples were used as a model of ECM degradation in abdominal aortic aneurysm (AAA). After enzymatic treatment, Fourier transform infrared (FTIR) spectra of the aortic tissue were acquired by an infrared fiber optic probe (IFOP) and FTIR imaging spectroscopy (FT-IRIS). Collagen and elastin content were quantified biochemically and partial least squares (PLS) models were developed to predict collagen and elastin content in aorta based on FTIR spectra. PLS models developed from FT-IRIS spectra were able to predict elastin and collagen content of the samples with strong correlations (RMSE of validation = 8.4% and 11.1% of the range respectively), and IFOP spectra were successfully used to predict elastin content (RMSE = 11.3% of the range). The PLS regression coefficients from the FT-IRIS models were used to map collagen and elastin in tissue sections of degraded porcine aortic tissue as well as a human AAA biopsy tissue, creating a similar map of each component compared to histology. These results support further application of FTIR spectroscopic techniques for evaluation of AAA tissues.
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Affiliation(s)
- Rabee Cheheltani
- Department of Mechanical Engineering, Temple University, Philadelphia, PA 19122, USA
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20
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Pissuwan D, Hobro AJ, Pavillon N, Smith NI. Distribution of label free cationic polymer-coated gold nanorods in live macrophage cells reveals formation of groups of intracellular SERS signals of probe nanoparticles. RSC Adv 2014. [DOI: 10.1039/c3ra45556d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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21
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Glassford SE, Byrne B, Kazarian SG. Recent applications of ATR FTIR spectroscopy and imaging to proteins. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:2849-58. [PMID: 23928299 DOI: 10.1016/j.bbapap.2013.07.015] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/24/2013] [Accepted: 07/27/2013] [Indexed: 11/25/2022]
Abstract
Attenuated Total Reflection (ATR) Fourier Transform Infrared (FTIR) spectroscopy is a label-free, non-destructive analytical technique that can be used extensively to study a wide variety of different molecules in a range of different conditions. The aim of this review is to discuss and highlight the recent advances in the applications of ATR FTIR spectroscopic imaging to proteins. It briefly covers the basic principles of ATR FTIR spectroscopy and ATR FTIR spectroscopic imaging as well as their advantages to the study of proteins compared to other techniques and other forms of FTIR spectroscopy. It will then go on to examine the advances that have been made within the field over the last several years, particularly the use of ATR FTIR spectroscopy for the understanding and development of protein interaction with surfaces. Additionally, the growing potential of Surface Enhanced Infrared Spectroscopy (SEIRAS) within this area of applications will be discussed. The review includes the applications of ATR FTIR imaging to protein crystallisation and for high-throughput studies, highlighting the future potential of the technology within the field of protein structural studies and beyond.
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ATR-FTIR spectroscopy reveals genomic loci regulating the tissue response in high fat diet fed BXD recombinant inbred mouse strains. BMC Genomics 2013; 14:386. [PMID: 23758785 PMCID: PMC3717084 DOI: 10.1186/1471-2164-14-386] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Accepted: 05/20/2013] [Indexed: 12/14/2022] Open
Abstract
Background Obesity-associated organ-specific pathological states can be ensued from the dysregulation of the functions of the adipose tissues, liver and muscle. However, the influence of genetic differences underlying gross-compositional differences in these tissues is largely unknown. In the present study, the analytical method of ATR-FTIR spectroscopy has been combined with a genetic approach to identify genetic differences responsible for phenotypic alterations in adipose, liver and muscle tissues. Results Mice from 29 BXD recombinant inbred mouse strains were put on high fat diet and gross-compositional changes in adipose, liver and muscle tissues were measured by ATR-FTIR spectroscopy. The analysis of genotype-phenotype correlations revealed significant quantitative trait loci (QTL) on chromosome 12 for the content of fat and collagen, collagen integrity, and the lipid to protein ratio in adipose tissue and on chromosome 17 for lipid to protein ratio in liver. Using gene expression and sequence information, we suggest Rsad2 (viperin) and Colec11 (collectin-11) on chromosome 12 as potential quantitative trait candidate genes. Rsad2 may act as a modulator of lipid droplet contents and lipid biosynthesis; Colec11 might play a role in apoptopic cell clearance and maintenance of adipose tissue. An increased level of Rsad2 transcripts in adipose tissue of DBA/2J compared to C57BL/6J mice suggests a cis-acting genetic variant leading to differential gene activation. Conclusion The results demonstrate that the analytical method of ATR-FTIR spectroscopy effectively contributed to decompose the macromolecular composition of tissues that accumulate fat and to link this information with genetic determinants. The candidate genes in the QTL regions may contribute to obesity-related diseases in humans, in particular if the results can be verified in a bigger BXD cohort.
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Kazarian SG, Ewing AV. Applications of Fourier transform infrared spectroscopic imaging to tablet dissolution and drug release. Expert Opin Drug Deliv 2013; 10:1207-21. [DOI: 10.1517/17425247.2013.801452] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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Birarda G, Holman EA, Fu S, Weikel K, Hu P, Blankenberg FG, Holman HY, Taylor A. Synchrotron infrared imaging of advanced glycation endproducts (AGEs) in cardiac tissue from mice fed high glycemic diets. BIOMEDICAL SPECTROSCOPY AND IMAGING 2013; 2:301-315. [PMID: 26500847 PMCID: PMC4617198 DOI: 10.3233/bsi-130057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Recent research findings correlate an increased risk for dieases such as diabetes, macular degeneration and cardiovascular disease (CVD) with diets that rapidly raise the blood sugar levels; these diets are known as high glycemic index (GI) diets which include white breads, sodas and sweet deserts. Lower glycemia diets are usually rich in fruits, non-starchy vegetables and whole grain products. The goal of our study was to compare and contrast the effects of a low vs. high glycemic diet using the biochemical composition and microstructure of the heart. The improved spatial resolution and signal-to-noise for SR-FTIR obtained through the coupling of the bright synchrotron infrared photon source to an infrared spectral microscope enabled the molecular-level observation of diet-related changes within unfixed fresh frozen histologic sections of mouse cardiac tissue. High and low glycemic index (GI) diets were started at the age of five-months and continued for one year, with the diets only differing in their starch distribution (high GI diet = 100% amylopectin versus low GI diet = 30% amylopectin/70% amylose). Serial cryosections of cardiac tissue for SR-FTIR imaging alternated with adjacent hematoxylin and eosin (H&E) stained sections allowed not only fine-scale chemical analyses of glycogen and glycolipid accumulation along a vein as well as protein glycation hotspots co-localizing with collagen cold spots but also the tracking of morphological differences occurring in tandem with these chemical changes. As a result of the bright synchrotron infrared photon source coupling, we were able to provide significant molecular evidence for a positive correlation between protein glycation and collagen degradation in our mouse model. Our results bring a new insight not only to the effects of long-term GI dietary practices of the public but also to the molecular and chemical foundation behind the cardiovascular disease pathogenesis commonly seen in diabetic patients.
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Affiliation(s)
- Giovanni Birarda
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA
| | - Elizabeth A. Holman
- Department of Radiology and Pediatrics/Molecular Imaging Program at Stanford, Stanford, CA, USA
| | - Shang Fu
- Laboratory for Nutrition and Vision Research, Jean Mayer USDA HNRCA at Tufts University, Tufts University, Boston, MA, USA
| | - Karen Weikel
- Laboratory for Nutrition and Vision Research, Jean Mayer USDA HNRCA at Tufts University, Tufts University, Boston, MA, USA
- Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Ping Hu
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA
| | - Francis G. Blankenberg
- Department of Radiology and Pediatrics/Molecular Imaging Program at Stanford, Stanford, CA, USA
| | - Hoi-Ying Holman
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA
| | - Allen Taylor
- Laboratory for Nutrition and Vision Research, Jean Mayer USDA HNRCA at Tufts University, Tufts University, Boston, MA, USA
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Kazarian SG, Chan KLA. ATR-FTIR spectroscopic imaging: recent advances and applications to biological systems. Analyst 2013; 138:1940-51. [DOI: 10.1039/c3an36865c] [Citation(s) in RCA: 267] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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26
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Wrobel TP, Mateuszuk L, Kostogrys RB, Chlopicki S, Baranska M. Quantification of plaque area and characterization of plaque biochemical composition with atherosclerosis progression in ApoE/LDLR−/− mice by FT-IR imaging. Analyst 2013; 138:6645-52. [DOI: 10.1039/c3an01050c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Wrobel TP, Majzner K, Baranska M. Protein profile in vascular wall of atherosclerotic mice analyzed ex vivo using FT-IR spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:940-945. [PMID: 22944148 DOI: 10.1016/j.saa.2012.07.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 07/26/2012] [Accepted: 07/27/2012] [Indexed: 06/01/2023]
Abstract
The structure of proteins in a tissue can undergo changes on account of disease state such as diabetes or atherosclerosis. In this work the protein profile in atherosclerotic tissue is monitored by FT-IR imaging coupled with Hierarchical Cluster Analysis (HCA). Additionally, a model for prediction of secondary structure of proteins content based on amide I and II range is used to show the distribution of analyzed proteins. A new protein class emerged in atherosclerotic tissue in the region of the plaque and additionally the plaque was found to be strongly mixed with smooth muscle cell. The calculated secondary structure contents of proteins in atherosclerotic tissue in comparison to healthy tissue showed an increase of structures related to beta-sheet (E and T) and a decrease of helical (H) and unassigned arrangements.
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Affiliation(s)
- Tomasz P Wrobel
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland
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28
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P Wrobel T, Mateuszuk L, Chlopicki S, Malek K, Baranska M. Imaging of lipids in atherosclerotic lesion in aorta from ApoE/LDLR-/- mice by FT-IR spectroscopy and Hierarchical Cluster Analysis. Analyst 2011; 136:5247-55. [PMID: 22007352 DOI: 10.1039/c1an15311k] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spectroscopy-based approaches can provide an insight into the biochemical composition of a tissue sample. In the present work Fourier transform infrared (FT-IR) spectroscopy was used to develop a reliable methodology to study the content of free fatty acids, triglycerides, cholesteryl esters as well as cholesterol in aorta from mice with atherosclerosis (ApoE/LDLR(-/-) mice). In particular, distribution and concentration of palmitic, oleic and linoleic acid derivatives were analyzed. Spectral analysis of pure compounds allowed for clear discrimination between free fatty acids and other similar moieties based on the carbonyl band position (1699-1710 cm(-1) range). In order to distinguish cholesteryl esters from triglycerides a ratio of carbonyl band to signal at 1010 cm(-1) was used. Imaging of lipids in atherosclerotic aortic lesions in ApoE/LDLR(-/-) mice was followed by Hierarchical Cluster Analysis (HCA). The aorta from C57Bl/6J control mice (fed with chow diet) was used for comparison. The measurements were completed with an FT-IR spectrometer equipped with a 128 × 128 FPA detector. In cross-section of aorta from ApoE/LDLR(-/-) mice a region of atherosclerotic plaque was clearly identified by HCA, which was later divided into 2 sub-regions, one characterized by the higher content of cholesterol, while the other by higher contents of cholesteryl esters. HCA of tissues deposited on normal microscopic glass, hence limited to the 2200-3800 cm(-1) spectral range, also identified a region of atherosclerotic plaque. Importantly, this region correlates with the area stained by standard histological staining for atherosclerotic plaque (Oil Red O). In conclusion, the use of FT-IR and HCA may provide a novel tool for qualitative and quantitative analysis of contents and distribution of lipids in atherosclerotic plaque.
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Affiliation(s)
- Tomasz P Wrobel
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
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Atheroprotective effects of dietary L-arginine increase with age in cholesterol-fed rabbits. Br J Nutr 2011; 105:1439-47. [PMID: 21269531 DOI: 10.1017/s0007114510005234] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
NO has several putative atheroprotective properties but its precursor, L-arginine, and inhibitors of its synthesis have had inconsistent effects on the extent of experimental atherosclerosis in rabbits. The location and character of experimental atherosclerosis differ between immature and mature rabbits; both phenomena have been attributed to changes with age in the NO pathway. We investigated whether the influence of dietary L-arginine on experimental atherosclerosis is also age-related. The frequency of lesions was mapped in the descending thoracic and upper abdominal aorta of immature and mature rabbits fed 1 % cholesterol, with or without supplementary L-arginine, for 8 weeks. Consistent with earlier data, the distribution of lesions around the branch points changed with age in control rabbits. The mean frequency of lesions was essentially the same at both ages. L-Arginine supplements had no effect on the distribution of lesions at either age. They significantly reduced the mean frequency of lesions in mature animals but not in immature animals. Thus, the atheroprotective effect of dietary L-arginine in cholesterol-fed rabbits increases with age.
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Petibois C, Desbat B. Clinical application of FTIR imaging: new reasons for hope. Trends Biotechnol 2010; 28:495-500. [PMID: 20828847 DOI: 10.1016/j.tibtech.2010.07.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 06/28/2010] [Accepted: 07/08/2010] [Indexed: 12/28/2022]
Abstract
In the 1990s, Fourier transform infrared (FTIR) imaging arrived as an analytical tool for the biological sciences. However, major limitations have appeared with respect to modern techniques of clinical imaging; slow acquisition of data, diffraction limitations, inability to image living biosystems, and weak sensitivity of detectors. Recent technological developments have demonstrated that FTIR imaging can be used to image living biosamples at the surface of specific crystals, lateral resolution can reach 100 nm without diffraction limits, and real-time imaging is accessible. These analytical improvements, in conjunction with industrial efforts in providing a new generation of high photon flux IR sources and more sensitive detectors, will give FTIR imaging a 'second chance' to be introduced into the clinic.
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Affiliation(s)
- Cyril Petibois
- Université de Bordeaux, CNRS UMR 5248 CBMN, 2 Rue Robert Escarpit, 33604 Pessac-Cedex, France.
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Kazarian SG, Chan KLA. Micro- and macro-attenuated total reflection Fourier transform infrared spectroscopic imaging. Plenary Lecture at the 5th International Conference on Advanced Vibrational Spectroscopy, 2009, Melbourne, Australia. APPLIED SPECTROSCOPY 2010; 64:135A-152A. [PMID: 20482963 DOI: 10.1366/000370210791211673] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Fourier transform infrared (FT-IR) spectroscopic imaging has become a very powerful method in chemical analysis. In this review paper we describe a variety of opportunities for obtaining FT-IR images using the attenuated total reflection (ATR) approach and provide an overview of fundamental aspects, accessories, and applications in both micro- and macro-ATR imaging modes. The advantages and versatility of both ATR imaging modes are discussed and the spatial resolution of micro-ATR imaging is demonstrated. Micro-ATR imaging has opened up many new areas of study that were previously precluded by inadequate spatial resolution (polymer blends, pharmaceutical tablets, cross-sections of blood vessels or hair, surface of skin, single live cells, cancerous tissues). Recent applications of ATR imaging in polymer research, biomedical and forensic sciences, objects of cultural heritage, and other complex materials are outlined. The latest advances include obtaining spatially resolved chemical images from different depths within a sample, and surface-enhanced images for macro-ATR imaging have also been presented. Macro-ATR imaging is a valuable approach for high-throughput analysis of materials under controlled environments. Opportunities exist for chemical imaging of dynamic aqueous systems, such as dissolution, diffusion, microfluidics, or imaging of dynamic processes in live cells.
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Affiliation(s)
- Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, SW7 2AZ, London, England
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Palombo F, Danoux CB, Weinberg PD, Kazarian SG. Measurement of drug and macromolecule diffusion across atherosclerotic rabbit aorta ex vivo by attenuated total reflection-Fourier transform infrared imaging. JOURNAL OF BIOMEDICAL OPTICS 2009; 14:044008. [PMID: 19725720 DOI: 10.1117/1.3174395] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Diffusion of two model drugs-benzyl nicotinate and ibuprofen-and the plasma macromolecule albumin across atherosclerotic rabbit aorta was studied ex vivo by attenuated total reflection-Fourier transform infrared (ATR-FTIR) imaging. Solutions of these molecules were applied to the endothelial surface of histological sections of the aortic wall that were sandwiched between two impermeable surfaces. An array of spectra, each corresponding to a specific location in the section, was obtained at various times during solute diffusion into the wall and revealed the distribution of the solutes within the tissue. Benzyl nicotinate in Ringer's solution showed higher affinity for atherosclerotic plaque than for apparently healthy tissue. Transmural concentration profiles for albumin demonstrated its permeation across the section and were consistent with a relatively low distribution volume for the macromolecule in the middle of the wall. The ability of albumin to act as a drug carrier for ibuprofen, otherwise undetected within the tissue, was demonstrated by multivariate subtraction image analysis. In conclusion, ATR-FTIR imaging can be used to study transport processes in tissue samples with high spatial and temporal resolution and without the need to label the solutes under study.
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Affiliation(s)
- Francesca Palombo
- Imperial College London, Department of Chemical Engineering and Chemical Technology, South Kensington Campus, London, SW7 2AZ, United Kingdom
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Palombo F, Shen H, Benguigui LES, Kazarian SG, Upmacis RK. Micro ATR-FTIR spectroscopic imaging of atherosclerosis: an investigation of the contribution of inducible nitric oxide synthase to lesion composition in ApoE-null mice. Analyst 2009; 134:1107-18. [DOI: 10.1039/b821425e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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