Spectropathology for the next generation: Quo vadis?

Byrne, Hugh J.; Barańska, Małgorzata; Puppels, Gerwin J.; Stone, Nick; Wood, Bayden Robert; Gough, Kathleen; Lasch, Peter; Heraud, Philip; Sulé-Suso, Josep; Sockalingum, Ganesh D.

doi:10.1039/c4an02036g

Cited by 113 publications

(96 citation statements)

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“…The preclinical investigation is based on both in vitro models and in vivo experiments in various animal species [54]. However, due to regulatory developments in the EU [55], there is currently much promotion of the development of in vitro models, which can accurately indicate in vivo results [56,57]. In addition to ethical considerations and the 3Rs principle [58], animal drug testing has certain limitations.…”

Section: Tracking Of Doxorubicin In Vitromentioning

confidence: 99%

Spectroscopic studies of anthracyclines: Structural characterization and in vitro tracking

Szafraniec

Majzner

Farhane³

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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A broad spectroscopic characterization, using ultraviolet-visible (UV-vis) and Fourier transform infrared absorption as well as Raman scattering, of two commonly used anthracyclines antibiotics (DOX) daunorubicin (DNR), their epimers (EDOX, EDNR) and ten selected analogs is presented. The paper serves as a comprehensive spectral library of UV-vis, IR and Raman spectra of anthracyclines in the solid state and in solution. The particular advantage of Raman spectroscopy for the measurement and analysis of individual antibiotics is demonstrated. Raman spectroscopy can be used to monitor the in vitro uptake and distribution of the drug in cells, using both 488 nm and 785 nm as source wavelengths, with submicrometer spatial resolution, although the cellular accumulation of the drug is different in each case. The high information content of Raman spectra allows studies of the drug-cell interactions, and so the method seems very suitable for monitoring drug uptake and mechanisms of interaction with cellular compartments at the subcellular level.

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Section: Tracking Of Doxorubicin In Vitromentioning

confidence: 99%

Spectroscopic studies of anthracyclines: Structural characterization and in vitro tracking

Szafraniec

Majzner

Farhane³

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…Pérez-Guaita et al [62] more recently evaluated the use of permutation testing, commonly used in metabolomics [63] and proteomics [64], which employs a random reallocation of class labels in order to establish the statistical significance of a cross-validation figure of merit of a classifier. Ultimately, however, the validation of the integrated techniques of spectroscopy and multivariate classifiers will have to comply with the rigours of the clinical environment, including large scale blind datasets and randomised trials [1]. In terms of post processing of multivariate spectral data, for diagnostics the primary emphasis to date has been on unsupervised classification.…”

Section: Discussionmentioning

confidence: 99%

“…Due to its unique chemical fingerprinting capability at the molecular level, vibrational spectroscopy can play a significant role in a new paradigm of histopathology, cytology, biopsy targeting, surgical targets, treatment monitoring and drug studies. However, translation into the clinical environment has been slow, and although the challenges facing the translation to realistic clinical applications are manifold, including those associated with large scale clinical trials, health economics and acceptance by the medical community [1], there remains a considerable amount of issues relating to the fundamental process of recording reliable spectra from complex, chemically and physically inhomogeneous samples and extracting reliable information from heterogeneous sample sets which may be influenced by a multitude of confounding factors. The development of reliable data (pre-and post-) processing and data mining techniques has thus been identified as a rate determining step in the maturation of vibrational spectroscopic techniques towards real applications, in vitro, ex vivo and in vivo.…”

Section: Introductionmentioning

confidence: 99%

Spectral pre and post processing for infrared and Raman spectroscopy of biological tissues and cells

et al. 2016

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Vibrational Spectroscopy, both infrared absorption and Raman spectroscopy, have attracted increasing attention for biomedical applications, from in vivo and ex vivo disease diagnostics and screening, to in vitro screening of therapeutics. There remain, however, many challenges related to the accuracy of analysis of physically and chemically inhomogeneous samples, across heterogeneous sample sets. Data preprocessing is required to deal with variations in instrumental responses and intrinsic spectral backgrounds and distortions in order to extract reliable spectral data. Data postprocessing is required to extract the most reliable information from the sample sets, based on often very subtle changes in spectra associated with the targeted pathology or biochemical process. This review presents the current understanding of the factors influencing the quality of spectra recorded and the pre-processing steps commonly employed to improve on spectral quality. It further explores some of the most common techniques which have emerged for classification and analysis of the spectral data for biomedical applications. The importance of sample presentation and measurement conditions to yield the highest quality spectra in the first place is emphasised, as is the potential of model simulated datasets to validate both pre-and post-processing protocols.

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“…These techniques have been applied to biological samples, including tissue in vivo [1], excised tissue ex vivo, tissue sections ex vivo [2], blood [3] and serum [4] ex vivo, and single cells [5] in vitro, in which signals from biomolecules such as proteins, lipids and DNA/RNA are observed and used to characterise samples. [6] In particular, the application of IR and Raman spectroscopy for label free disease diagnosis is being extensively studied in the biomedical vibrational spectroscopy field. Extensive research has been invested into the potential for increased objectivity and automation in histopathology and cytology with a movement towards spectral pathology as the ultimate goal.…”

Section: Introductionmentioning

confidence: 99%

“…Extensive research has been invested into the potential for increased objectivity and automation in histopathology and cytology with a movement towards spectral pathology as the ultimate goal. [6] Standard clinical practice requires analysis of haematoxylin & eosin (H&E) stained tissue sections by a pathologist for disease diagnosis. Attempts are being made to move towards more automated disease diagnosis in tissue sections, and cytology samples, using vibrational spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Vibrational spectroscopy as a tool for studying drug-cell interaction: Could high throughput vibrational spectroscopic screening improve drug development?

Jamieson

Byrne²

2017

Vibrational Spectroscopy

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. (2017). Vibrational spectroscopy as a tool for studying drug-cell interaction: could high throughput vibrational spectroscopic screening improve drug development? Vibrational Spectroscopy, vol. 91, July, pp. 16-30. doi.org/10.1016/ j.vibspec.2016 Vibrational spectroscopy as a tool for studying drug-cell interaction: could high throughput vibrational spectroscopic screening improve drug development? AbstractVibrational spectroscopy is currently widely explored as a tool in biomedical applications. An area at the forefront of this field is the use of vibrational spectroscopy for disease diagnosis, ultimately aiming towards spectral pathology. However, while this field shows promising results, moving this technique into the clinic faces the challenges of widespread clinical trials and legislative approval. While spectral pathology has received a lot of attention, there are many other biomedical applications of vibrational spectroscopy, which could potentially be translated to applications with greater ease. A particularly promising application is the use of vibrational spectroscopic techniques to study the interaction of drugs with cells. Many studies have demonstrated the ability to detect biochemical changes in cells in response to drug application, using both infrared and Raman spectroscopy. This has shown potential for use in high throughput screening (HTS) applications, for screening of efficacy and mode of action of potential drug candidates, to speed up the drug discovery process. HTS is still a relatively new and growing area of research and, therefore, there is more potential for new techniques to move into and shape this field. Vibrational spectroscopic techniques come with many benefits over the techniques used currently in HTS, primarily based on fluorescence assays to detect specific binding interactions or phenotypes. They are label free, and an infrared or Raman spectrum provides a wealth of biochemical information, and therefore could reveal not only information about a specific interaction, but about how the overall biochemistry of a cell changes in response to application of a drug candidate. Therefore, drug mode of action could be elucidated. This review will investigate the potential for vibrational spectroscopy, particularly FTIR and Raman spectroscopy, to benefit the field of HTS and improve the drug development process. In addition to FTIR and Raman spectroscopy, surface enhanced Raman spectroscopy (SERS), coherent anti-Stokes Raman spectroscopy (CARS) and stimulated Raman spectroscopy (SRS), will be investigated as an alternative tool in the HTS process.

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Spectropathology for the next generation: Quo vadis?

Cited by 113 publications

References 50 publications

Spectroscopic studies of anthracyclines: Structural characterization and in vitro tracking

Spectroscopic studies of anthracyclines: Structural characterization and in vitro tracking

Spectral pre and post processing for infrared and Raman spectroscopy of biological tissues and cells

Vibrational spectroscopy as a tool for studying drug-cell interaction: Could high throughput vibrational spectroscopic screening improve drug development?

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