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Pappoe JA, Opoku-Ansah J, Amuah CLY, Osei-Wusu Adueming P, Sackey SS, Boateng R, Addo JK, Eghan MJ, Mensah-Amoah P, Anderson B. Automatic Classification of Antimalarial Herbal Drugs Exposed to Ultraviolet Radiation from Unexposed Ones Using Laser-Induced Autofluorescence with Chemometric Techniques. J Fluoresc 2024; 34:367-380. [PMID: 37266836 DOI: 10.1007/s10895-023-03281-5] [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: 04/12/2023] [Accepted: 05/21/2023] [Indexed: 06/03/2023]
Abstract
Exposure of antimalarial herbal drugs (AMHDs) to ultraviolet radiation (UVR) affects the potency and integrity of the AMHDs. Instant classification of the AMHDs exposed to UVR (UVR-AMHDs) from unexposed ones (Non-UVR-AMHDs) would be beneficial for public health safety, especially in warm regions. For the first time, this work combined laser-induced autofluorescence (LIAF) with chemometric techniques to classify UVR-AMHDs from Non-UVR-AMHDs. LIAF spectra data were recorded from 200 ml of each of the UVR-AMHDs and Non-UVR-AMHDs. To extract useful data from the spectra fingerprint, principal components (PCs) analysis was used. The performance of five chemometric algorithms: random forest (RF), neural network (NN), support vector machine (SVM), linear discriminant analysis (LDA), and k-nearest neighbour (KNN), were compared after optimization by validation. The chemometric algorithms showed that KNN, SVM, NN, and RF were superior with a classification accuracy of 100% for UVR-AMHDs while LDA had a classification accuracy of 98.8% after standardization of the spectra data and was used as an input variable for the model. Meanwhile, a classification accuracy of 100% was obtained for KNN, LDA, SVM, and NN when the raw spectra data was used as input except for RF for which a classification accuracy of 99.9% was obtained. Classification accuracy above 99.74 ± 0.26% at 3 PCs in both the training and testing sets were obtained from the chemometric models. The results showed that the LIAF, combined with the chemometric techniques, can be used to classify UVR-AMHDs from Non-UVR-AMHDs for consumer confidence in malaria-prone regions. The technique offers a non-destructive, rapid, and viable tool for identifying UVR-AMHDs in resource-poor countries.
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Affiliation(s)
- Justice Allotey Pappoe
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Space Environment, Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, Alexandria, Egypt
| | - Jerry Opoku-Ansah
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana.
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana.
| | - Charles Lloyd Yeboah Amuah
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Peter Osei-Wusu Adueming
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Samuel Sonko Sackey
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Rabbi Boateng
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Justice Kwaku Addo
- Department of Chemistry, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Moses Jojo Eghan
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Patrick Mensah-Amoah
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Benjamin Anderson
- Laser and Fibre Optics Centre, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Physics, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
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Pagliuca C, Di Leo L, De Zio D. New Insights into the Phenotype Switching of Melanoma. Cancers (Basel) 2022; 14:cancers14246118. [PMID: 36551603 PMCID: PMC9776915 DOI: 10.3390/cancers14246118] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/02/2022] [Accepted: 12/10/2022] [Indexed: 12/14/2022] Open
Abstract
Melanoma is considered one of the deadliest skin cancers, partly because of acquired resistance to standard therapies. The most recognized driver of resistance relies on acquired melanoma cell plasticity, or the ability to dynamically switch among differentiation phenotypes. This confers the tumor noticeable advantages. During the last year, two new features have been included in the hallmarks of cancer, namely "Unlocking phenotypic plasticity" and "Non-mutational epigenetic reprogramming". Such are inextricably intertwined as, most of the time, plasticity is not discernable at the genetic level, as it rather consists of epigenetic reprogramming heavily influenced by external factors. By analyzing current literature, this review provides reasoning about the origin of plasticity and clarifies whether such features already exist among tumors or are acquired by selection. Moreover, markers of plasticity, molecular effectors, and related tumor advantages in melanoma will be explored. Ultimately, as this new branch of tumor biology opened a wide landscape of therapeutic possibilities, in the final paragraph of this review, we will focus on newly characterized drugs targeting melanoma plasticity.
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Affiliation(s)
- Chiara Pagliuca
- Melanoma Research Team, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
| | - Luca Di Leo
- Melanoma Research Team, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
| | - Daniela De Zio
- Melanoma Research Team, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Correspondence:
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Medina ME, Meza‐Menchaca T, Trigos Á. Insight on the pro‐oxidant capability of amphotericin B in lipid media: A theoretical study. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Manuel E. Medina
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Médicos 4, Unidad del Bosque Xalapa Veracruz 91010 México
| | - Thuluz Meza‐Menchaca
- Facultad de Medicina, Laboratorio de Genómica Humana Universidad Veracruzana Médicos y Odontólogos, Unidad del Bosque Xalapa Veracruz 91010 México
| | - Ángel Trigos
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Médicos 4, Unidad del Bosque Xalapa Veracruz 91010 México
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Roberts AP, Alloy MM, Oris JT. Review of the photo-induced toxicity of environmental contaminants. Comp Biochem Physiol C Toxicol Pharmacol 2017; 191:160-167. [PMID: 27756692 DOI: 10.1016/j.cbpc.2016.10.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 10/13/2016] [Accepted: 10/13/2016] [Indexed: 02/03/2023]
Abstract
Solar radiation is a vital component of ecosystem function. However, sunlight can also interact with certain xenobiotic compounds in a phenomenon known as photo-induced, photo-enhanced, photo-activated, or photo-toxicity. This phenomenon broadly refers to an interaction between a chemical and sunlight resulting in increased toxicity. Because most aquatic ecosystems receive some amount of sunlight, co-exposure to xenobiotic chemicals and solar radiation is likely to occur in the environment, and photo-induced toxicity may be an important factor impacting aquatic ecosystems. However, photo-induced toxicity is not likely to be relevant in all aquatic systems or exposure scenarios due to variation in important ecological factors as well as physiological adaptations of the species that reside there. Here, we provide an updated review of the state of the science of photo-induced toxicity in aquatic ecosystems.
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Affiliation(s)
- Aaron P Roberts
- Department of Biological Sciences & Advanced Environmental Research Institute, University of North Texas, Denton, TX 76203, USA.
| | - Matthew M Alloy
- Department of Natural Resource Sciences, McGill University, Ste-Anne-de-Bellevue, Quebec H9X3V9, Canada.
| | - James T Oris
- Department of Biology, Miami University, Oxford, OH 45056, USA.
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Volkovova K, Bilanicova D, Bartonova A, Letašiová S, Dusinska M. Associations between environmental factors and incidence of cutaneous melanoma. Review. Environ Health 2012; 11 Suppl 1:S12. [PMID: 22759494 PMCID: PMC3388446 DOI: 10.1186/1476-069x-11-s1-s12] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
BACKGROUND Cutaneous melanoma is one of the most serious skin cancers. It is caused by neural crest-derived melanocytes - pigmented cells normally present in the epidermis and, sometimes, in the dermis. METHODS We performed a review of current knowledge on the risk factors of cutaneous melanoma. Relevant studies were identified using the PubMed, Science Direct, Medline, Scopus, Scholar Google and ISI Web of Knowledge databases. RESULTS Melanoma incurs a considerable public health burden owing to the worldwide dramatic rise in incidence since the mid-1960s. Ultraviolet radiation exposure is the predominant environmental risk factor. The role of geographical (latitude) and individual factors such as skin type, life style, vitamin D levels and antioxidant protection, sunburn, and exposure to other environmental factors possibly contributing to melanoma risk (such as cosmetics including sunscreen, photosensitising drugs, and exogenous hormones) are reviewed in this article. Recently, both rare high risk susceptibility genes and common polymorphic genes contributing to melanoma risk have been identified. CONCLUSIONS Cutaneous melanoma is a complex cancer with heterogeneous aetiology that continues to increase in incidence. Introduction of new biomarkers may help to elucidate the mechanism of pathogenesis and individual susceptibility to the disease, and make both prevention and treatment more effective.
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Affiliation(s)
| | - Dagmar Bilanicova
- Slovak Medical University, Bratislava, Slovakia
- University of Venice, Venice, Italy
| | | | | | - Maria Dusinska
- Slovak Medical University, Bratislava, Slovakia
- NILU - Norwegian Institute for Air Research, Oslo, Norway
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Oyamada C, Kaneniwa M, Ebitani K, Murata M, Ishihara K. Mycosporine-like amino acids extracted from scallop (Patinopecten yessoensis) ovaries: UV protection and growth stimulation activities on human cells. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2008; 10:141-150. [PMID: 18157682 DOI: 10.1007/s10126-007-9043-z] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Revised: 06/18/2007] [Accepted: 07/03/2007] [Indexed: 05/25/2023]
Abstract
Scallops (Patinopecten yessoensis) are extensively cultured and landed in Japan. During the processing of scallops, large amounts of internal organs and shells are discharged as industrial wastes. To reduce the burden on the environment, effective utilization and disposal methods of the wastes are required. Therefore, we have screened for useful materials in scallop internal organs, and found ultraviolet (UV) absorbing compounds from scallop ovaries. Based on UV absorption, electrospray ionization-mass spectrometry (ESI-MS), ESI-MS/MS, and nuclear magnetic resonance (NMR) spectra, three UV absorbing compounds were identified as mycosporine-like amino acids (MAAs): shinorine, porphyra-334 (P-334), and mycosporine-glycine. To investigate whether MAAs can act as a UV protector for human cells, we examined the protective effects of the three MAAs on human fibroblast cells from UV irradiation. All of the three examined MAAs protected the cells from UV-induced cell death. In particular, mycosporine-glycine had the strongest effect. Further, we found a promotion effect of MAAs on the proliferation of human skin fibroblast cells. From these results, it was found that the three MAAs isolated from scallop ovaries have a protective effect on human cells against UV light. MAAs have potential applications in cosmetics and toiletries as a UV protectors and activators of cell proliferation.
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Affiliation(s)
- Chiaki Oyamada
- National Research Institute of Fisheries Science, Fisheries Research Agency, 2-12-4 Fukuura, Kanazawa, Kanagawa, Yokohama 236-8648, Japan
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Hargreaves A, Taiwo FA, Duggan O, Kirk SH, Ahmad SI. Near-ultraviolet photolysis of beta-phenylpyruvic acid generates free radicals and results in DNA damage. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2007; 89:110-6. [PMID: 17977740 DOI: 10.1016/j.jphotobiol.2007.09.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 08/06/2007] [Accepted: 09/10/2007] [Indexed: 11/29/2022]
Abstract
Ultraviolet A (UVA) light (315-400 nm) is ubiquitously found in our environment and constitutes about 95% of the total solar UV; all UVC and most UVB being absorbed by the stratospheric ozone layer. Compared with UVB and C, UVA does not show any direct effect on biological systems. Indirect effects of UVA, however, have been recognised overwhelmingly and this includes photosensitization of biological and non-biological compounds and production of free radicals many of which include oxygen and are hence known as reactive oxygen species or ROS. Several types of free radicals have been identified although their impacts on various macro- and micro-biomolecules are yet to be fully elucidated. beta-Phenylpyruvic acid is ubiquitously found in eukaryotic cells as a metabolite of phenylalanine, which is subsequently converted to phenyllactate and/or to 2-hydroxyphenylacetate and mandelate. In patients suffering from phenylketonuria the hydroxylation of phenylalanine to tyrosine is defective due to lack of phenylalanine hydroxylase. These result in accumulation and excretion of this compound in the urine. Here we present evidence that photolysis of beta-phenylpyruvic acid by a skin tanning lamp, emitting 99% UVA (315-400 nm) and 1% UVB (290-315 nm) generates carboxyl radicals (CO(2)(*)) and also possibly causes direct electron transfer (or type 1) reactions. Electron paramagnetic resonance was used to detect the free radicals. To determine the biological effects of this photolytic reaction, T7 was exposed to these photolytic reactive agents and found to lead to high levels of phage inactivation. Damage to DNA and/or components such as tail fibre proteins may be involved in T7 inactivation. In addition, our unpublished data suggest that certain phenylketonuria cell lines are more sensitive to PPA+NUV, lending importance to photolytic studies of this agent.
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Affiliation(s)
- A Hargreaves
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
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