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Janahmadi Z, Momeni S, Manoochehri H, Talebi S. Development of an efficient hemostatic material based on cuttlefish ink nanoparticles loaded in cuttlebone biocomposite. J Mater Chem B 2024; 12:4172-4183. [PMID: 38591253 DOI: 10.1039/d3tb01966g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Traumatic hemorrhage is one of the main causes of mortality in civilian and military accidents. This study aimed to evaluate the effectiveness of cuttlefish bone (cuttlebone, CB) and CB loaded with cuttlefish ink (CB-CFI) nanoparticles for hemorrhage control. CB and CB-CFI were prepared and characterized using different methods. The hemostasis behavior of constructed biocomposites was investigated in vitro and in vivo using a rat model. Results showed that CFI nanoparticles (NPs) are uniformly dispersed throughout the CB surface. CB-CFI10 (10 mg CFI in 1.0 g of CB) showed the best blood clotting performance in both in vitro and in vivo tests. In vitro findings revealed that the blood clotting time of CB, CFI, and CB-CFI10 was found to be 275.4 ± 12.4 s, 229.9 ± 19.9 s, and 144.0 ± 17.5 s, respectively. The bleeding time in rat liver injury treated with CB, CFI, and CB-CFI10 was 158.1 ± 9.2 s, 114.0 ± 5.7 s, and 46.8 ± 2.7 s, respectively. CB-CFI10 composite resulted in more reduction of aPTT (11.31 ± 1.51 s) in comparison with CB (17.34 ± 2.12 s) and CFI (16.79 ± 1.46 s) (p < 0.05). Furthermore, CB and CB-CFI10 exhibited excellent hemocompatibility. The CB and CB-CFI did not show any cytotoxicity on human foreskin fibroblast (HFF) cells. The CB-CFI has a negative surface charge and may activate coagulation factors through direct contact with their components, including CaCO3, chitin, and CFI-NPs with blood. Thus, the superior hemostatic potential, low cost, abundant, simple, and time-saving preparation process make CB-CFI a very favorable hemostatic material for traumatic bleeding control in clinical applications.
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Affiliation(s)
- Zeinab Janahmadi
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Safieh Momeni
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Hamed Manoochehri
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Shadi Talebi
- Department of Medical Sciences, Yazd Branch, Islamic Azad University, Yazd, Iran
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2
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Saber WIA, Ghoniem AA, Al-Otibi FO, El-Hersh MS, Eldadamony NM, Menaa F, Elattar KM. A comparative study using response surface methodology and artificial neural network towards optimized production of melanin by Aureobasidium pullulans AKW. Sci Rep 2023; 13:13545. [PMID: 37598271 PMCID: PMC10439932 DOI: 10.1038/s41598-023-40549-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/12/2023] [Indexed: 08/21/2023] Open
Abstract
The effect of three independent variables (i.e., tyrosine, sucrose, and incubation time) on melanin production by Aureobasidium pullulans AKW was unraveled by two distinctive approaches: response surface methodology (i.e. Box Behnken design (BBD)) and artificial neural network (ANN) in this study for the first time ever using a simple medium. Regarding BBD, sucrose and incubation intervals did impose a significant influence on the output (melanin levels), however, tyrosine did not. The validation process exhibited a high consistency of BBD and ANN paradigms with the experimental melanin production. Concerning ANN, the predicted values of melanin were highly comparable to the experimental values, with minor errors competing with BBD. Highly comparable experimental values of melanin were achieved upon using BBD (9.295 ± 0.556 g/L) and ANN (10.192 ± 0.782 g/L). ANN accurately predicted melanin production and showed more improvement in melanin production by about 9.7% higher than BBD. The purified melanin structure was verified by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction pattern (XRD), and thermogravimetric analysis (TGA). The results verified the hierarchical architecture of the particles as small compasses by SEM analysis, inter-layer spacing in the XRD analysis, maximal atomic % for carbon, and oxygen atoms in the EDX analysis, and the great thermal stability in the TGA analysis of the purified melanin. Interestingly, the current novel endophytic strain was tyrosine-independent, and the uniquely applied ANN paradigm was more efficient in modeling the melanin production with appreciate amount on a simple medium in a relatively short time (168 h), suggesting additional optimization studies for further maximization of melanin production.
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Affiliation(s)
- WesamEldin I A Saber
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, 12619, Egypt.
| | - Abeer A Ghoniem
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, 12619, Egypt
| | - Fatimah O Al-Otibi
- Botany and Microbiology Department, Faculty of Science, King Saud University, 11451, Riyadh, Saudi Arabia.
| | - Mohammed S El-Hersh
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, 12619, Egypt
| | - Noha M Eldadamony
- Seed Pathology Department, Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt.
| | - Farid Menaa
- Department of Biomedical and Environmental Engineering (BEE), Fluorotronics, Inc. California Innovation Corporation, San Diego, CA, 92037, USA
| | - Khaled M Elattar
- Unit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
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3
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Wakamatsu K, Ito S. Recent Advances in Characterization of Melanin Pigments in Biological Samples. Int J Mol Sci 2023; 24:ijms24098305. [PMID: 37176019 PMCID: PMC10179066 DOI: 10.3390/ijms24098305] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The melanin pigments eumelanin (EM) and pheomelanin (PM), which are dark brown to black and yellow to reddish-brown, respectively, are widely found among vertebrates. They are produced in melanocytes in the epidermis, hair follicles, the choroid, the iris, the inner ear, and other tissues. The diversity of colors in animals is mainly caused by the quantity and quality of their melanin, such as by the ratios of EM versus PM. We have developed micro-analytical methods to simultaneously measure EM and PM and used these to study the biochemical and genetic fundamentals of pigmentation. The photoreactivity of melanin has become a major focus of research because of the postulated relevance of EM and PM for the risk of UVA-induced melanoma. Our biochemical methods have found application in many clinical studies on genetic conditions associated with alterations in pigmentation. Recently, besides chemical degradative methods, other methods have been developed for the characterization of melanin, and these are also discussed here.
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Affiliation(s)
- Kazumasa Wakamatsu
- Institute for Melanin Chemistry, Fujita Health University, Toyoake 470-192, Aichi, Japan
| | - Shosuke Ito
- Institute for Melanin Chemistry, Fujita Health University, Toyoake 470-192, Aichi, Japan
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4
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Islam ATMR, Shinzato K, Miyaoka H, Komaguchi K, Koike K, Arakawa K, Kitamura K, Tanaka N. Isolation and characterization of blackish-brown BY2-melanin accumulated in cultured tobacco BY-2 cells. Biosci Biotechnol Biochem 2023; 87:395-410. [PMID: 36592962 DOI: 10.1093/bbb/zbac214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023]
Abstract
The tobacco BY-2 cell line is one of the most utilized plant cell lines. After long-term culture, the cells turn brown to black, but the causal pigment is unknown. We successfully isolated a blackish-brown pigment from BY-2 cells cultured for 3 weeks. Morphological and spectroscopic analyses indicated that the pigment had similar features to a melanin-like substance reported previously. Furthermore, physicochemical analyses revealed that this pigment possessed most of the properties of melanin-like pigments. In addition, the high nitrogen content suggested that it differed from common plant melanins classified as allomelanins, suggesting a novel eumelanin-like pigment: "BY2-melanin". This is the first example showing that eumelanin-like pigments are produced in the cultures of plant cells for which the accumulation of melanin has not been reported. This tobacco BY-2 cell culture technique may represent a customizable and sustainable alternative to conventional melanin production platforms, with significant potential for industrial and pharmacological applications.
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Affiliation(s)
- Abul Taher Mohammed Rafiqul Islam
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Botany, Faculty of Biosciences, University of Barishal, Barishal 8254, Bangladesh
| | - Keita Shinzato
- Advanced Materials Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Hiroki Miyaoka
- Advanced Materials Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Komaguchi
- Materials Analytical Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kanae Koike
- Facility Management Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Arakawa
- Cell Biochemistry, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Kitamura
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Gene Science, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Nobukazu Tanaka
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Gene Science, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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El Ghoubary NM, Fadel M, Fadeel DAA. Self-assembled surfactant-based nanoparticles as a platform for solubilization and enhancement of the photothermal activity of sepia melanin. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2023. [DOI: 10.1186/s43088-023-00353-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Abstract
Background
Sepia melanin (SM) is a natural photothermal biopolymer. Its biomedical applications are limited due to its poor solubility and bioavailability. This study aims to prepare a soluble formulation of sepia melanin to enhance its solubility, in turn, its bioavailability, and its use in photothermal therapy of cancer. SM was extracted from a sepia ink sac and prepared as insoluble powdered (SM) which is identified by FTIR, 1H-NMR, thermogravimetric analysis (TGA), and scanning electron microscope. SM was self-assembled using tween 80 into dispersed nanoparticles (SM-NP-Tw). The prepared SM-NP-Tw were fully characterized. The photothermal performance of SM-NP-Tw was assessed. Dark and photocytotoxicity of SM-NP-Tw was studied on HepG2 cells using two wavelengths (660 nm and 820 nm).
Results
The insoluble powdered (SM) exhibited a spherical nanoparticle-like shape as revealed by scanning electron microscope and was soluble only in an alkaline aqueous solution. TGA of SM showed high resistance to thermal degradation indicating good thermal stability. The prepared SM-NP-Tw exhibited a spherical shape with mean sizes of 308 ± 86 nm and a zeta potential of − 25 mv. The cell viability decreased significantly upon increasing the concentration and upon radiation at 820 nm. The results of UV–Vis spectroscopy and the photothermal performance revealed that melanin can absorb light in a wide range of wavelengths including near the IR region; thus, it can emit sufficient heat to kill cells through the photoheat conversion effects.
Conclusion
Sepia melanin nanoparticles self-assembled into tween-based nanostructures could be a promising natural platform for photothermal cancer therapy.
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Kabay G, Meydan AE, Eom T, Shim BS, Mutlu M, Kaleli-Can G. Stimuli-responsive nanoparticle-nanofiber hybrids for drug delivery and photodynamic therapy. Int J Pharm 2022; 630:122442. [PMID: 36442721 DOI: 10.1016/j.ijpharm.2022.122442] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
Hybrid nanomaterials possess integrated multi-components to syncretize various properties and functions within a single entity. Owing to this synergistic effect, they promise efficient anti-cancer therapy. In line with this target, we produced stimuli-responsive nanoparticle-nanofiber hybrids (NNHs) via embedding photoresponsive natural melanin nanoparticles (MNPs) within a biocompatible polycaprolactone (PCL) nanofiber matrix. Electrospinning was performed to produce monolithic and core-shell structured NNHs using a single and a coaxial nozzle. The NNHs were upgraded to drug delivery systems by model hydrophilic drug-ampicillin (amp)-loading. The drug release results showed that monolithic PCL meshes displayed a burst release, whereas nanohybrid formation with MNPs improved the release profile toward Fickian diffusion. Core-shell NNH presented a more sustained drug release profile than its MNP-free replica and monolithic NNH because its encapsulating shell layer hindered the diffusion of the drug. The photodynamic therapy accompanied by UV-A-irradiation on monolithic and core-shell NNHs yielded up to 34 % and 37 % malignant melanoma cell death. Moreover, this study proved the potency of MNPs-enhanced NNHs in drug delivery and photodynamic therapy applications. Even so, more efforts should be concerted to unlock unknown features of the NNHs, which have the power to advance emerging areas, including but not limited to material science, biosensing, and theranostics.
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Affiliation(s)
- Gözde Kabay
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Karlsruhe Institute of Technology, Institute of Functional Interfaces - IFG, 76344 Karlsruhe, Germany.
| | - Ahmet Ersin Meydan
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Molecular Medicine, Graduate School of Health Sciences, TOBB University of Economics and Technology, 06560 Ankara, Turkey
| | - Taesik Eom
- Soft Matter Laboratory, Department of Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Bong Sup Shim
- Soft Matter Laboratory, Department of Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Mehmet Mutlu
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Material Science and Engineering, Faculty of Engineering, Ostim Technical University, 06374 Ankara, Turkey
| | - Gizem Kaleli-Can
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Biomedical Engineering, İzmir Democracy University, 35140 İzmir, Turkey.
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7
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Wu CC, Li H, Yin ZW, Zhang HT, Gao MJ, Zhu L, Zhan XB. Isolation, purification, and characterization of novel melanin from the submerged fermentation of Rhizobium radiobacter. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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BAYRAM S. A comparative characterization study between fungal and bacterial eumelanin pigments. Indian J Microbiol 2022; 62:393-400. [PMID: 35974917 PMCID: PMC9375792 DOI: 10.1007/s12088-022-01012-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/22/2022] [Indexed: 12/23/2022] Open
Abstract
Melanins are the most common and the most enigmatic natural pigments in the nature that found in many different taxa group such as bacteria, yeasts, fungi, insects, plants, reptiles, birds and mammals. These biological macromolecules are highly complex cross-linked, heterogeneous biopolymers and composed of polymerized phenolic and/or indolic compounds. Recently, interest in these ubiquitous biopolymers has been increasing considerably in many different areas such as medicine, pharmacology, cosmetics, organic electronic and optoelectronics because of their versatile properties. In this study, four different extracellular eumelanin pigments (two bacterial eumelanins and two fungal eumelanins) were characterized by different spectrometric techniques such as FT-IR, XRD, NMR and UV-vis. In XRD analyzes, purified fungal and bacterial eumelanin pigments were characterized by giving a wide peak at about 22o with an angle of 2θ. Furthermore, in the 1 H NMR spectra of these biopolymers, it was observed that all pigments have signals in both aromatic and aliphatic regions. In addition to these analyzes, nanostructures of these biopolymers were characterized using atomic force microscopy (AFM) and scanning electron microscopy (SEM). Finally, eumelanin pigment producer microorganisms were molecularly characterized. 16 S rDNA and 18 S rDNA sequence analysis results of these microorganisms (Streptomyces fulvissimus MPPS4, Streptomyces xiamenensis MPPS6, Aspergillus niger MPPF16 and Aspergillus terreus MPPF25) were deposited in NCBI GenBank® database with accession number MT825594, MT973972, MW652652 and MW652653 respectively. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-022-01012-1.
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Affiliation(s)
- Sinan BAYRAM
- Department of Medical Services and Techniques, Vocational School of Health Services, Bayburt University, 69000 Bayburt, Turkey
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9
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Kalaj BN, Ni QZ, La Clair JJ, Deheyn DD, Burkart MD. Chemoenzymatic Isolation and Characterization of High Purity Mammalian Melanin. Chembiochem 2022; 23:e202200021. [PMID: 35318787 DOI: 10.1002/cbic.202200021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/28/2022] [Indexed: 11/10/2022]
Abstract
Although melanin is one of the most ubiquitous polymers in living systems, our understanding of its molecular structure, biosynthesis and biophysical properties has been limited to only a small number of organisms other than humans. This is in part due to the difficulty associated with isolating pure melanin. While purification methods exist, they typically involve harsh treatments with strong acid/base conditions combined with elevated temperatures that can lead to the polymer backbone degradation. To be successful, a viable isolation method must deliver a selective, yet complete degradation of non-melanin biopolymers as well as remove small molecule metabolites that are not integrative to the melanin backbone. Here, we demonstrate the use of chemoenzymatic processing guided by fluorescent probes for the purification and isolation of native mammalian melanin without significant induction of chemical degradation. This multi-step purification-tracking methodology enables quantitative isolation of pure melanin from mammalian tissue for spectroscopic characterization.
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Affiliation(s)
- Brianna N Kalaj
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
| | - Qing Zhe Ni
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
| | - James J La Clair
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
| | - Dimitri D Deheyn
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Drive La Jolla, California, 92093-0202, USA
| | - Michael D Burkart
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
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10
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Gao L, Liu L, Liu P, Zhao Y, Zhang S, Xu H. Preparation and related properties of melanin iron supplement. Food Funct 2022; 13:4009-4022. [PMID: 35315843 DOI: 10.1039/d1fo03293c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, BM-Fe (black sesame melanin-iron complex) was prepared and characterized. The results showed that the carboxyl hydroxyl group of BSM (black sesame melanin) participated in the chelation of iron ions. EDS (energy dispersive spectroscopy) and XPS (X-ray photoelectron spectroscopy) results confirmed the presence of iron ions in BM-Fe. The results of DLS (dynamic light scattering) showed that the average particle sizes of BSM and BM-Fe were 844.9 nm and 294.3 nm, respectively, indicating that the structure of BM-Fe with a smaller particle size was formed after the binding of iron ions with the active group on BSM. Finally, the in vitro iron dissolution, iron ion identification, in vitro iron ion reduction, antioxidant activity, cytotoxicity and moisture resistance properties of BM-Fe and FST (ferrous sulfate tablets, a commonly used iron supplement) were comprehensively compared. The results showed that BSM combined with iron instead of physically mixing, and BM-Fe was easily reduced in the gastrointestinal environment. BM-Fe had good bioavailability and retained the excellent characteristics (such as oxidation resistance and biocompatibility) of BSM, and had the potential to be applied in the treatment of iron-deficiency-related diseases. In summary, BM-Fe prepared in this study not only retained the excellent characteristics of BSM but also had a good effect on iron supplementation, high bioavailability and low side effects. Comprehensive analysis showed that the performance of BM-Fe prepared in this study was similar to or even better than that of the control (FST). Thus, BM-Fe is expected to become a new comprehensive multi-functional iron supplement and has a broad developmental prospect.
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Affiliation(s)
- Li Gao
- School of Chemical Engineering and Technology, North University of China, Taiyuan, Shanxi, 030051, China.,School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Linlin Liu
- School of Chemical Engineering and Technology, North University of China, Taiyuan, Shanxi, 030051, China
| | - Panpan Liu
- School of Chemical Engineering and Technology, North University of China, Taiyuan, Shanxi, 030051, China
| | - Yinghu Zhao
- School of Environment and Safety Engineering, North University of China, Taiyuan, Shanxi, 030051, China.
| | - Shuli Zhang
- School of Chemical Engineering and Technology, North University of China, Taiyuan, Shanxi, 030051, China
| | - Hongyu Xu
- School of Chemical Engineering and Technology, North University of China, Taiyuan, Shanxi, 030051, China
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11
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Fuentes-López D, Ortega-Zambrano D, Fernández-Herrera MA, Mercado-Uribe H. The growth of Escherichia coli cultures under the influence of pheomelanin nanoparticles and a chelant agent in the presence of light. PLoS One 2022; 17:e0265277. [PMID: 35275981 PMCID: PMC8916617 DOI: 10.1371/journal.pone.0265277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Growing concern of antibiotic resistance has increased research efforts to find nonspecific treatments to inhibit pathogenic microorganisms. In this regard, photodynamic inactivation is a promising method. It is based on the excitation of a photosensitizer molecule (PS) with UV-Vis radiation to produce reactive oxygen species. The high reactivity of such species nearby the PS leads to oxidation of bacterial cell walls, lipid membranes (lipid peroxidation), enzymes, and nucleic acids, eventually producing cell death. In the last decade, many studies have been carried out with different photosensitizers to suppress the growth of bacteria, fungi, viruses, and malignant tumors. Here, our main motivation is to employ pheomelanin nanoparticles as sensitizers for inhibiting the growth of the Gram-negative bacteria E. coli, exposed to blue and UVA radiation. In order to perform our experiments, we synthesized pheomelanin nanoparticles from L-DOPA and L-cysteine through an oxidation process. We carried out experiments at different particle concentrations and different energy fluences. We found that cultures exposed to UVA at 166 μg/mL and 270 J/cm2, in conjunction with ethylenediaminetetraacetic acid (EDTA) as an enhancer, decreased in the viable count 5 log10. Different reactive oxygen species (singlet oxygen, hydroxyl radicals, and peroxynitrates) were detected using different procedures. Our results suggest that the method reported here is effective against E. coli, which could encourage further investigations in other type of bacteria.
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Affiliation(s)
- Denisse Fuentes-López
- Centro de Investigación y de Estudios Avanzados, del Instituto Politécnico Nacional Unidad Monterrey, Apodaca, Nuevo León, México
| | - Daniel Ortega-Zambrano
- Centro de Investigación y de Estudios Avanzados, del Instituto Politécnico Nacional Unidad Monterrey, Apodaca, Nuevo León, México
| | - María Antonieta Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, del Instituto Politécnico Nacional Unidad Mérida, Mérida, Yucatán, México
| | - Hilda Mercado-Uribe
- Centro de Investigación y de Estudios Avanzados, del Instituto Politécnico Nacional Unidad Monterrey, Apodaca, Nuevo León, México
- * E-mail:
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Xin C, Zhang Y, Bao M, Yu C, Hou K, Wang Z. Novel carrier-free, charge-reversal and DNA-affinity nanodrugs for synergistic cascade cancer chemo-chemodynamic therapy. J Colloid Interface Sci 2022; 606:1488-1508. [PMID: 34500153 DOI: 10.1016/j.jcis.2021.08.121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022]
Abstract
The combination of chemotherapy (CT) and chemodynamic therapy (CDT) is an emerging therapeutic strategy for tumors; however, its therapeutic efficacy is usually impaired by the shortage of high-efficiency intracellular catalysts for CDT and the poor tumor selectivity of CT. To address this concern, novel carrier-free nanodrugs (CMC-DD2) self-assembled from the natural melanin complex (CMC) with a superior CDT performance, and dehydroabietic acid hexamer (DD2) displaying a potent antitumor activity were proposed for the synergistic combination of CT and CDT. CMC-DD2 preferred to enter tumor cells and localize in the nucleus after lysosome escape due to its pH-dependent charge-reversal properties. Nanodrugs internalized by the nucleus directly bound the DNA and altered its conformation. Then, the dissociation of CMC-DD2 was efficiently triggered by intracellular hydrogen peroxide (H2O2) with the release of DNA damaging agents, including nitrate anions, hydroxyl radicals (●OH) and DD2. Finally, severe DNA damage induced mitochondrial apoptosis in HepG2 cells. An in vivo assessment further demonstrated the superior tumor selectivity and suppressor capacity and no/low toxicity of the nanodrugs. Overall, novel carrier-free, charge-reversal, nucleus-targeting, biodegradable, and DNA-affinity nanodrugs represent safe and effective platforms for the combination of CT and CDT.
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Affiliation(s)
- Chao Xin
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Yandong Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Meili Bao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Chong Yu
- School of pharmacy, Harbin Medical University, Harbin 150090, China
| | - Kexin Hou
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Zhenyu Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China.
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Gao L, Yang L, Guo L, Wang H, Zhao Y, Xie J, Shi N. Improving the solubility of melanin nanoparticles from apricot kernels is a potent drug delivery system. J Appl Biomater Funct Mater 2022; 20:22808000221124418. [DOI: 10.1177/22808000221124418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Melanin can be used in biomedical nanomaterials, but its solubility in water and bioavailability are low. Aim: Melanin nanoparticles were prepared and then PEG-natural melanin nanoparticles (NMNP-PEG) were obtained with good performance and optimize their (water solubility, dispersion stability, chelating metal ions, photothermal stability, drug delivery, and biocompatibility), therefore improve the water solubility of melanin and broaden its application scope in biology, medicine, food, and other fields. Methods: MFAK (melanin from apricot kernels) and NMNP-PEG were prepared and characterized using ultraviolet-visible spectrophotometry (UV-Vis), high-performance liquid chromatography (HPLC), Fourier-transform infrared spectroscopy (FTIR), 1H nuclear magnetic resonance (NMR), and electron microscopy. The chelation rate of metal ions, photothermal effect, doxorubicin loading, and cytotoxicity (MCF-7 cells) were examined. Results: UV-Vis, HPLC, FTIR, and NMR indicated that NMNPs contained melanin. NMNPs could be successfully modified using PEG. Under physiological pH conditions (pH 7.4), the metal ion chelation rate of NMNP-PEG increased with time and peaked at 12 h. The photothermal assay showed a temperature enhancement of 26.3°C with 1 mg/mL NMNP-PEG, compared with 1.9℃ with water. The NMNP-PEGs had a typical peak for doxorubicin in the FTIR spectrum, and the peak intensity was proportional to the drug loading. The release of doxorubicin in an acidic buffer was 40.8% at 24 h, almost threefold that in a neutral buffer (11.9%). There was no obvious cytotoxicity from NMNP-PEG. Conclusion: NMNP-PEG displays good stability, high metal ion chelation ability, efficient photothermal conversion potential, drug-retaining capability, sustained controlled drug release, and biocompatibility. This study provides a theoretical basis for NMNP-PEG applications in medicine (targeting specific sites to diagnose and treat diseases), food (extending the shelf life of food), and biology (as metal ion chelating agents to remove heavy metals from wastewater).
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Affiliation(s)
- Li Gao
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi, China
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Liu Yang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi, China
| | - Lixiao Guo
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi, China
| | - Haibin Wang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi, China
| | - Yinghu Zhao
- School of Environment and Safety Engineering, North University of China, Taiyuan, Shanxi, China
| | - Jun Xie
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Nan Shi
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi, China
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14
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Ammanagi A, C T S, R K, Badiger A, Ramaraj V. Functional and Structural Characterization of Melanin from Brevibacillus invocatus Strain IBA. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2021; 500:159-169. [PMID: 34731382 DOI: 10.1134/s001249662105001x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/23/2022]
Abstract
Melanin is a polyphenol or indolic dark brown to black pigment of macromolecules that has a variety of biological functions including UV defence, desiccation, and oxidation. The pigment is classified as a heterogenic polymer. Analytical characterization of melanin can be difficult due to its heterogeneity. In this study, a newly isolated strain of Brevibacillus invocatus strain IBA capable of extracellular melanin production was grown on nutrient agar and the bacteria were molecularly identified. Chemical and physical methods were used to characterize melanin. The solubility of melanin in organic and inorganic solvents was used to characterise it chemically. According to the UV-visible wavelength scan, physical characterization revealed absorption in the UV region 200 to 300 nm, but declining towards the visible region. Functional group identification of extracted melanin was carried out by FTIR with different stretching vibrations at 3226, 2920, 2849, 1628, 1555, 1340 cm-1 and weak absorption bands at 1104 and 1015 cm-1. Structural characterization was carried by SEM of extracted melanin which showed irregular shape and size at different magnifications. The crystallinity of melanin was studied using X-ray crystallography, with a lattice parameter of approximately a = 8.54. The XRD spectrum of the extracted melanin crystallographic pattern revealed peaks at 2θ = 27.32, 31.66, 45.41, 53.84, 53.84, 56.44, 66.18, 73.10, 75.26, and 83.94, which correspond to reflections (111), (200), (220), (311), (222), (400), (331), (420), and (422), respectively. The analytical methods available for melanin analysis are largely complementary, providing detailed knowledge required to draw reliable conclusions about the sample under investigation.
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Affiliation(s)
- Avinash Ammanagi
- Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka, India.
| | - Shivasharana C T
- Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka, India.
| | - Krishnaveni R
- Department of Microbiology Vijayanagara Sri Krishna Devaraya University, Ballari, Karnataka, India
| | - Abhijeeth Badiger
- Department of Biotechnology, Sri Dharmasthala Manjunatheshwara College, Ujire, Karnataka, India
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15
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Song W, Xing R, Yang H, Liu S, Li P. Optimization of extractions of eumelanin from cuttlefish ink and the hypoglycemic effects: In vitro enzyme inhibitory activity and glucose consumption in HepG2 cells. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wen Song
- AS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega‐Science, Institute of Oceanology Chinese Academy of Sciences Qingdao China
- Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao China
- School of Earth and Planetary University of Chinese Academy of Sciences Beijing China
| | - Rong‐e Xing
- AS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega‐Science, Institute of Oceanology Chinese Academy of Sciences Qingdao China
- Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao China
| | - Haoyue Yang
- AS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega‐Science, Institute of Oceanology Chinese Academy of Sciences Qingdao China
- Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao China
| | - Song Liu
- AS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega‐Science, Institute of Oceanology Chinese Academy of Sciences Qingdao China
- Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao China
| | - Pengcheng Li
- AS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega‐Science, Institute of Oceanology Chinese Academy of Sciences Qingdao China
- Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology (Qingdao) Qingdao China
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16
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Pyomelanin produced by Streptomyces sp. ZL-24 and its protective effects against SH-SY5Y cells injury induced by hydrogen peroxide. Sci Rep 2021; 11:16649. [PMID: 34404820 PMCID: PMC8371117 DOI: 10.1038/s41598-021-94598-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 07/12/2021] [Indexed: 02/07/2023] Open
Abstract
A soluble melanin pigment produced by Streptomyces sp. ZL-24 was purified and named StrSM. The elemental analysis of StrSM showed it consists of carbon, hydrogen, and oxygen. The spectrum analysis, including ultraviolet-visible absorption spectrum, Fourier-transform infrared spectrum, and pyrolysis-gas chromatography-mass spectrometry, indicated that StrSM might be pyomelanin. High performance liquid chromatography and liquid chromatography-mass spectra analysis of intermediate metabolite showed the presence of homogentisic acid (HGA). Moreover, the enzyme 4-hydroxyphenylpyruvate dioxygenase, involved in HGA biosynthesis, showed high activity during melanin production. Subsequently, a tyrosinase gene (melC2) and hydroxyphenylpyruvate dioxygenase gene double mutant demonstrated StrSM is pyomelanin. In vitro bioactivity assay showed that StrSM had excellent protective capability against SH-SY5Y cell oxidative injury. To our knowledge, the results firstly provide comprehensive data on Streptomyces pyomelanin identification and a promising candidate compound to treat oxidative injury of neurocytes.
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17
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Parvulescu MJS, Martin KL, Mogilevsky P, Patel TA, Street DP, Gupta MK, Hung CS, Dickerson MB. Biomorphic Ceramics: Synthesis and Characterization of Preceramic Polymer-Modified Melanin. ACS Biomater Sci Eng 2021; 7:3103-3113. [PMID: 34100582 DOI: 10.1021/acsbiomaterials.1c00265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent efforts have demonstrated that the morphology of ceramics can be manipulated to control both their deformation mechanism and mechanical performance. However, precise control of the ceramic nanostructure is still difficult to achieve. Biotemplating, leading to biomorphic materials, provides a facile route to manipulate the nanostructure of the resulting materials, and the use of melanin as a coating provides a new route to biotemplated materials. Melanin is underutilized for structural materials partly due to the cost of procuring it from natural sources and the inability to control the shape and sizes of melanin particles. Taking a combined synthetic biology and chemical synthesis approach, we report the melanization of Escherichia coli and its subsequent silanization and functionalization with preceramic polymers to make novel biomorphic silicon-based ceramic materials. Graft-to and graft-from reactions were used to append preceramic polymers to the melanin, followed by pyrolysis under argon. Samples were analyzed by FTIR, XRD, XPS, and TEM and found to retain the shape and size of the original cells with high fidelity. The homogeneity of coverage and yield of the resulting ceramic materials depended on the type of grafting reaction. This work provides a promising proof-of-concept that bacterial-templated ceramics can be readily made and opens a host of possibilities for further studies and applications.
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Affiliation(s)
- Maria J S Parvulescu
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Kara L Martin
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Pavel Mogilevsky
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Tulsi A Patel
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,National Research Council Research Associate Program, National Academies of Science, 500 Fifth Street, NW, Washington, D.C. 20001, United States
| | - Dayton P Street
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,National Research Council Research Associate Program, National Academies of Science, 500 Fifth Street, NW, Washington, D.C. 20001, United States
| | - Maneesh K Gupta
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
| | - Chia-Suei Hung
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
| | - Matthew B Dickerson
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
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18
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A novel melanin complex displayed the affinity to HepG2 cell membrane and nucleus. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111923. [PMID: 33641916 DOI: 10.1016/j.msec.2021.111923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 12/30/2020] [Accepted: 01/24/2021] [Indexed: 01/07/2023]
Abstract
Chitosan-melanin complex from Catharsius molossus L. has proven to possess superior pharmaceutical excipient performance and may be the new source of water-soluble protein-free natural melanin. Herein, it was enzymatically hydrolyzed into the chitooligosaccharide-melanin complex (CMC) whose main chemical units were composed of eumelanin and chitooligosaccharides and showed three-layer structures. Additionally, this biomacromolecule could self-assemble into 40 nm nanoparticles (CMC Nps) in a weakly acidic aqueous solution. Interestingly, CMC displayed strong affinity for cell membrane by binding the phosphatidylserine, glycoprotein, glycolipids and glycosaminoglycans accumulated on the surface of tumor cells, notably, CMC Nps could enter cells and mainly target the nucleus by interacting with DNA and/or RNA substrates located around the nucleus to disrupt the proliferation and apoptosis processes. The findings suggest CMC may be the novel material for subcellular organelle targeting of cancer cells.
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19
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Deyrup ST, Stagnitti NC, Perpetua MJ, Wong-Deyrup SW. Drug Discovery Insights from Medicinal Beetles in Traditional Chinese Medicine. Biomol Ther (Seoul) 2021; 29:105-126. [PMID: 33632986 PMCID: PMC7921859 DOI: 10.4062/biomolther.2020.229] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 11/23/2022] Open
Abstract
Traditional Chinese medicine (TCM) was the primary source of medical treatment for the people inhabiting East Asia for thousands of years. These ancient practices have incorporated a wide variety of materia medica including plants, animals and minerals. As modern sciences, including natural products chemistry, emerged, there became increasing efforts to explore the chemistry of this materia medica to find molecules responsible for their traditional use. Insects, including beetles have played an important role in TCM. In our survey of texts and review articles on TCM materia medica, we found 48 species of beetles from 34 genera in 14 different families that are used in TCM. This review covers the chemistry known from the beetles used in TCM, or in cases where a species used in these practices has not been chemically studied, we discuss the chemistry of closely related beetles. We also found several documented uses of beetles in Traditional Korean Medicine (TKM), and included them where appropriate. There are 129 chemical constituents of beetles discussed.
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Affiliation(s)
- Stephen T. Deyrup
- Department of Chemistry and Biochemistry, Siena College, Loudonville, NY 12309, USA
| | - Natalie C. Stagnitti
- Department of Chemistry and Biochemistry, Siena College, Loudonville, NY 12309, USA
| | | | - Siu Wah Wong-Deyrup
- The RNA Institute and Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
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20
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Roy S, Rhim JW. New insight into melanin for food packaging and biotechnology applications. Crit Rev Food Sci Nutr 2021; 62:4629-4655. [PMID: 33523716 DOI: 10.1080/10408398.2021.1878097] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Melanin is a dark brown to black biomacromolecule with biologically active multifunctional properties that do not have a precise chemical structure, but its structure mainly depends on the polymerization conditions during the synthesis process. Natural melanin can be isolated from various animal, plant, and microbial sources, while synthetic melanin-like compounds can be synthesized by simple polymerization of dopamine. Melanin is widely used in various areas due to its functional properties such as photosensitivity, light barrier property, free radical scavenging ability, antioxidant activity, etc. It also has an excellent ability to act as a reducing agent and capping agent to synthesize various metal nanoparticles. Melanin nanoparticles (MNP) or melanin-like nanoparticles (MLNP) have the unique potential to act as functional materials to improve nanocomposite films' physical and functional properties. Various food packaging and biomedical applications have been made alone or by mixing melanin or MLNP. In this review, the general aspects of melanin that highlight biological activity, along with a description of MNP and the use as nanofillers in packaging films as well as reducing and capping agents and biomedical applications, were comprehensively reviewed.
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Affiliation(s)
- Swarup Roy
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul, Republic of Korea
| | - Jong-Whan Rhim
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul, Republic of Korea
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21
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Xu L, Li J, Chang M, Cheng Y, Geng X, Meng J, Zhu M. Comparison of physicochemical and biochemical properties of natural and arginine-modified melanin from medicinal mushroom Ganoderma lucidum. J Basic Microbiol 2020; 60:1014-1028. [PMID: 33107089 DOI: 10.1002/jobm.202000430] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/11/2020] [Accepted: 09/25/2020] [Indexed: 12/13/2022]
Abstract
Melanin is a hydrophobic biomolecule produced widely in fungi. Compared with other fungi, health benefits have been associated with medicinal mushrooms, which may provide an excellent source of natural melanin. Nevertheless, the hydrophobicity of melanin may limit its applications. Consequently, the present study was carried out on isolation of melanin from the medicinal mushroom Ganoderma lucidum (GLM) and modification with arginine to improve its solubility. The physicochemical and biochemical properties of melanin were evaluated including structural characterization, solubility, stability, antioxidant activities, and inhibitory effect on pancreatic lipase activity. Arginine-modified melanin showed better solubility, higher color value, stronger antioxidant activity, and stronger inhibitory effect on pancreatic lipase activity in vitro than GLM. In addition, both have good stability in the dark and natural light. These results opened possibilities for providing an excellent source of natural melanin in health food or food additives fields.
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Affiliation(s)
- Lijing Xu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, China.,Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Jun Li
- Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Mingchang Chang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, China.,Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Yanfen Cheng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, China.,Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Xueran Geng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, China.,Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Junlong Meng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, China.,Shanxi Research Station for Engineering Technology of Edible Fungi, Taigu, China
| | - Mengjuan Zhu
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
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22
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Chen YC, Kendall T, Yip P, Davy A, Sefcik J, Sutter JU. Influence of Ions and pH on the Formation of Solid- and Liquid-like Melanin. ACS OMEGA 2020; 5:25059-25068. [PMID: 33043184 PMCID: PMC7542583 DOI: 10.1021/acsomega.0c01953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Melanin is a natural pigment with broadband absorption and effective ability to dissipate the energy absorbed. The macromolecular structure of melanin shows a delicate balance between short-range ordered and disordered structures without being a random aggregate. The presence of ions or the variation in pH or ionic strength can alter the self-assembly process which subsequently changes the structure of melanin. To understand these relationships, this study investigates the influence of ions and pH in melanin formation. The types of ions present and pH have a profound influence on the formation and structure of melanin particles, while only minor changes are observed in the absorption and excitation-emission analysis. In some conditions, the formation of discernible particles with significant refractive index contrast is avoided while retaining the spectroscopic characteristics of melanin, leading to liquid-like melanin. These findings identify potential pathways which can be used to manipulate the melanin macromolecular structure while providing the desired spectral properties to enable novel bio-engineering applications.
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Affiliation(s)
- Yi-chieh Chen
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Thomas Kendall
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Philip Yip
- Horiba IBH Ltd., 133 Finnieston Street, Glasgow G3 8HB, Scotland, U.K.
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
| | - Alastair Davy
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
| | - Jan Sefcik
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Jens U. Sutter
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
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23
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Gil-Avilés MDR, Montes-Avila J, Díaz-Camacho SP, Picos-Salas MA, López-Angulo G, Reynoso-Soto EA, Osuna-Martínez LU, Delgado-Vargas F. Soluble melanins of the Randia echinocarpa fruit - Structural characteristics and toxicity. J Food Biochem 2019; 43:e13077. [PMID: 31608463 DOI: 10.1111/jfbc.13077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/31/2019] [Accepted: 09/30/2019] [Indexed: 11/27/2022]
Abstract
The water-soluble melanins (SM) of Randia echinocarpa fruit possess interesting biological activities and have been scarcely characterized. In this study, SM were obtained at boiling (SMBT) and room (SMRT) temperatures and characterized by UV-Vis, IR, thermogravimetric analysis, and GC-MS of the hydrolysis products of the SM; besides, the solid-state 13 C NMR, elemental analysis, and acute and sub-acute toxicity of the SMBT were determined. SMBT and SMRT contain organic acids and carbohydrates and their spectroscopic signals and thermograms were similar, but the SMBT yield was higher. The SMBT were characterized by their elemental composition (C 48.260 ± 0.011%, N 3.693 ± 0.009% and H 6.093 ± 0.076%) consistent with the presence of aromatic rings and eumelanins, degradation temperature at 300°C, 13 C NMR signals supporting melanin-bonding with carbohydrates and organic acids, and innocuity in Balb/C mice (acute assay, LD50 > 5 g/kg b.w.; sub-acute assay, no lethality at 500 mg/kg b.w. for 30 days). PRACTICAL APPLICATIONS: The consumption of melanins has been associated with health benefits because of their biological activities (e.g., antioxidant, immunostimulatory, UV- and radiation-protective). Randia echinocarpa is employed in Mexican traditional medicine against chronic degenerative diseases (e.g., cancer and diabetes) and ailments of organs (e.g., kidney and lung) and systems (e.g., circulatory and gastrointestinal). The R. echinocarpa fruit contains water-soluble melanins (SM) that inhibit carbohydrate-digestive enzymes and show high antioxidant activity; thus, SM could be useful for the prevention and treatment of diabetes. This study showed that the SM structure contains melanin-bonding organic acids and carbohydrates, which could be associated with the SM solubility and higher yield, and that SMBT were innocuous in the acute and sub-acute assays in mice. Thus, the R. echinocarpa SMBT could be used as safe potential ingredients to develop functional products.
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Affiliation(s)
| | - Julio Montes-Avila
- School of Chemical and Biological Sciences, Autonomous University of Sinaloa, Culiacan, Mexico
| | | | | | - Gabriela López-Angulo
- School of Chemical and Biological Sciences, Autonomous University of Sinaloa, Culiacan, Mexico
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24
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Pralea IE, Moldovan RC, Petrache AM, Ilieș M, Hegheș SC, Ielciu I, Nicoară R, Moldovan M, Ene M, Radu M, Uifălean A, Iuga CA. From Extraction to Advanced Analytical Methods: The Challenges of Melanin Analysis. Int J Mol Sci 2019; 20:E3943. [PMID: 31412656 PMCID: PMC6719904 DOI: 10.3390/ijms20163943] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/08/2019] [Accepted: 08/11/2019] [Indexed: 12/13/2022] Open
Abstract
The generic term "melanin" describes a black pigment of biological origin, although some melanins can be brown or even yellow. The pigment is characterized as a heterogenic polymer of phenolic or indolic nature, and the classification of eu-, pheo- and allo- melanin is broadly accepted. This classification is based on the chemical composition of the monomer subunit structure of the pigment. Due to the high heterogeneity of melanins, their analytical characterization can be a challenging task. In the present work, we synthesized the current information about the analytical methods which can be applied in melanin analysis workflow, from extraction and purification to high-throughput methods, such as matrix-assisted laser desorption/ionization mass-spectrometry or pyrolysis gas chromatography. Our thorough comparative evaluation of analytical data published so far on melanin analysis has proven to be a difficult task in terms of finding equivalent results, even when the same matrix was used. Moreover, we emphasize the importance of prior knowledge of melanin types and properties in order to select a valid experimental design using analytical methods that are able to deliver reliable results and draw consistent conclusions.
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Affiliation(s)
- Ioana-Ecaterina Pralea
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Radu-Cristian Moldovan
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Alina-Maria Petrache
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Maria Ilieș
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Simona-Codruța Hegheș
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
| | - Irina Ielciu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400337 Cluj-Napoca, Romania
| | - Raul Nicoară
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
| | - Mirela Moldovan
- Department of Dermopharmacy and Cosmetics, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Ion Creangă Street 12, 400010 Cluj-Napoca, , Romania
| | - Mihaela Ene
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului Street 30, 077125 Măgurele, Romania
| | - Mihai Radu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului Street 30, 077125 Măgurele, Romania
| | - Alina Uifălean
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania.
| | - Cristina-Adela Iuga
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
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25
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The Ustilago maydis null mutant strains of the RNA-binding protein UmRrm75 accumulate hydrogen peroxide and melanin. Sci Rep 2019; 9:10813. [PMID: 31346214 PMCID: PMC6658566 DOI: 10.1038/s41598-019-47133-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 05/09/2019] [Indexed: 01/24/2023] Open
Abstract
Ustilago maydis is a dimorphic fungus that has emerged as a model organism for the study of fungal phytopathogenicity and RNA biology. In a previous study, we isolated the U. maydis UmRrm75 gene. The deletion of the UmRrm75 gene affected morphogenesis and pathogenicity. UmRrm75 gene encodes a protein containing three RNA recognition motifs. Here we determined that UmRrm75 has chaperone activity in Escherichia coli using the transcription anti-termination assay. Subsequently, we analyzed the growth of ΔUmRrm75 mutants at 15 °C and 37 °C, observing that mutant strains had reduced growth in comparison to parental strains. UmRrm75 gene expression was induced under these non-optimal temperatures. ΔUmRrm75 mutant colonies displayed a dark-brown color at 28 °C, which was confirmed to be melanin based on spectroscopic analysis and spectrometric data. Furthermore, ΔUmRrm75 mutant strains showed the presence of peroxisomes, and increased H2O2 levels, even at 28 °C. The ΔUmRrm75 mutant strains displayed a higher expression of redox-sensor UmYap1 gene and increased catalase activity than the parental strains. Our data show that deletion of the UmRrm75 gene results in higher levels of H2O2, increased melanin content, and abiotic stress sensitivity.
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Di Capua R, Gargiulo V, Alfè M, De Luca GM, Skála T, Mali G, Pezzella A. Eumelanin Graphene-Like Integration: The Impact on Physical Properties and Electrical Conductivity. Front Chem 2019; 7:121. [PMID: 30937300 PMCID: PMC6432792 DOI: 10.3389/fchem.2019.00121] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 02/15/2019] [Indexed: 11/13/2022] Open
Abstract
The recent development of eumelanin pigment-based blends integrating "classical" organic conducting materials is expanding the scope of eumelanin in bioelectronics. Beyond the achievement of high conductivity level, another major goal lays in the knowledge and feasible control of structure/properties relationship. We systematically investigated different hybrid materials prepared by in situ polymerization of the eumelanin precursor 5,6-dihydroxyindole (DHI) in presence of various amounts of graphene-like layers. Spectroscopic studies performed by solid state nuclear magnetic resonance (ss-NMR), x-ray photoemission, and absorption spectroscopies gave a strong indication of the direct impact that the integration of graphene-like layers into the nascent polymerized DHI-based eumelanin has on the structural organization of the pigment itself, while infrared, and photoemission spectroscopies indicated the occurrence of negligible changes as concerns the chemical units. A tighter packing of the constituent units could represent a strong factor responsible for the observed improved electrical conductivity of the hybrid materials, and could be possible exploited as a tool for electrical conductivity tuning.
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Affiliation(s)
- Roberto Di Capua
- Department of Physics “E. Pancini”, University of Naples “Federico II” and Superconducting and Other Innovative Materials and Devices Institute (SPIN), CNR, Naples, Italy
| | | | - Michela Alfè
- Institute for Research on Combustion (IRC), CNR, Naples, Italy
| | - Gabriella Maria De Luca
- Department of Physics “E. Pancini”, University of Naples “Federico II” and Superconducting and Other Innovative Materials and Devices Institute (SPIN), CNR, Naples, Italy
| | - Tomáš Skála
- Faculty of Mathematics and Physics, Charles University, Prague, Czechia
| | - Gregor Mali
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Ljubljana, Slovenia
| | - Alessandro Pezzella
- Institute for Polymers, Composites and Biomaterials (IPCB), CNR, Pozzuoli, Italy
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Li S, Yang L, Li J, Chen T, Ye M. Structure, Molecular Modification, and Anti-radiation Activity of Melanin from Lachnum YM156 on Ultraviolet B-Induced Injury in Mice. Appl Biochem Biotechnol 2018; 188:555-567. [PMID: 30547280 DOI: 10.1007/s12010-018-2898-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/26/2018] [Indexed: 10/27/2022]
Abstract
The purpose of this study was to examine the protective effects of intracellular homogeneous melanin produced by Lachnum YM156 (LIM) against ultraviolet B (UVB) induced damage in mice. The possible structural formula of the LIM was concluded based on elemental analysis, ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and mass spectrometry (MS). The LIM was modified by arginine to improve its water solubility and biological activities. LIM and ALIM show significant anti-radiation activity in which LIM and ALIM protect the skin under UV radiation. Results indicate that activities of anti-oxidant enzymes in skin were improved after treatment of LIM or ALIM. In addition, LIM and ALIM inhibited over expression of the pro-inflammatory cytokines, including interleukin (IL)-1α, IL-1β, and IL-6 and tumor necrosis factor-α (TNF-α). The protection ability of ALIM was higher than that of LIM at the same dose. Thus, applied LIM and ALIM may be a promising radiation-protective agent.
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Affiliation(s)
- Shenglan Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Liuqing Yang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jinglei Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Tingting Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Ming Ye
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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Wang Z, Yu N, Yu W, Xu H, Li X, Li M, Peng C, Wang Q, Zhu M, Chen Z. In situ growth of Au nanoparticles on natural melanin as biocompatible and multifunctional nanoagent for efficient tumor theranostics. J Mater Chem B 2018; 7:133-142. [PMID: 32254957 DOI: 10.1039/c8tb02724b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural melanin has been demonstrated to be a biocompatible and efficient nanoagent for the photothermal ablation of tumors, but their practical applications are limited due to their lack of typical imaging functions (CT, MRI, etc.). Thus, to achieve multifunctional melanin-based nanoagents for imaging-guided therapy, for the first time, herein, we report the in situ growth of Au nanoparticles on natural melanin as a model through a simple and safe method. The as-synthesized samples are composed of melanin nanoparticles (diameter: ∼120 nm) whose surface are decorated by small Au nanoparticles with an adjustable size ranging from ∼10 to ∼40 nm. These Au-decorated melanin (Au-M) nanocomposites exhibit satisfactory near infrared (NIR) photoabsorption and high photothermal conversion efficiency of 42.3%. Furthermore, the Au-M nanocomposites have a high X-ray attenuation coefficient and exhibit excellent biocompatibility. When the Au-M solutions were injected into the tumor of a mouse, the tumor could be detected by X-ray computed tomography (CT), photoacoustic (PA) and thermal imaging, and then be thermally ablated under the illumination of an 808 nm laser. Therefore, these Au-M nanocomposites have great potential as a novel multifunctional and biocompatible nanoagent for imaging-guided photothermal tumor ablation.
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Affiliation(s)
- Zhaojie Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Study on the Preparation and Chemical Structure Characterization of Melanin from Boletus griseus. Int J Mol Sci 2018; 19:ijms19123736. [PMID: 30477192 PMCID: PMC6320795 DOI: 10.3390/ijms19123736] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/12/2018] [Accepted: 11/21/2018] [Indexed: 11/27/2022] Open
Abstract
In this study, melanin (BgM) was obtained from Boletus griseus. The chemical composition and structure of BgM were characterized by UV-visible absorption spectrum, Fourier transform infrared spectrum, elemental analysis, nuclear magnetic resonance, pyrolysis gas chromatography mass spectrometry, and ultra-performance liquid chromatography–high resolution mass spectrometry. The percentage contents of C, H, N, S and O elements were 56.38%, 5.86%, 6.17%, 2.44%, and 28.04%, and the S/N and C/N ratios were 0.17 and 10.66, respectively. The UV-vis spectrum of BgM showed a maximum absorption peak at 214 nm. Characteristic absorption peaks were observed at 3426, 1600 and 1105 cm−1, and BgM contained phenolic hydroxyl, amidogen, carbonyl, methylene, and methyl groups. Moreover, BgM is an eumelanin, and its main skeleton has both a benzene ring and an indole, and the branched chain mainly consists of alkanes, alcohols, and fatty acids. BgM was hydrolyzed by H2O2 and four compounds were tentatively analyzed from the UPLC-MS/MS profile. The chemical structure of BgM was characterized as 5,6-dihydroxyindole eumelanin, and the condensed molecular formula is [C28(OR1)4(OR2)3H11O6N4]n.
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El-Sayyad GS, Mosallam FM, El-Batal AI. One-pot green synthesis of magnesium oxide nanoparticles using Penicillium chrysogenum melanin pigment and gamma rays with antimicrobial activity against multidrug-resistant microbes. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.07.009] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Red blood cell membrane-camouflaged melanin nanoparticles for enhanced photothermal therapy. Biomaterials 2017; 143:29-45. [DOI: 10.1016/j.biomaterials.2017.07.027] [Citation(s) in RCA: 206] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/19/2017] [Accepted: 07/20/2017] [Indexed: 11/20/2022]
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32
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El-Batal AI, El-Sayyad GS, El-Ghamry A, Agaypi KM, Elsayed MA, Gobara M. Melanin-gamma rays assistants for bismuth oxide nanoparticles synthesis at room temperature for enhancing antimicrobial, and photocatalytic activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:120-139. [DOI: 10.1016/j.jphotobiol.2017.05.030] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/09/2017] [Accepted: 05/16/2017] [Indexed: 02/02/2023]
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Ahn MY, Kim BJ, Kim HJ, Hwang JS, Jung YS, Park KK. Anti-aging effect and gene expression profiling of dung beetle glycosaminoglycan in aged rats. Biomater Res 2017; 21:5. [PMID: 28439422 PMCID: PMC5399430 DOI: 10.1186/s40824-017-0091-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/30/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND This study aimed to evaluate the anti-aging effect of a newly prepared insect-derived compound, dung beetle glycosaminoglycan (GAG), given intraperitoneally to old SD rats as part of their diet for 1 month. Insect GAG administration was found to be related to a reduction in oxidative damage, hepato-cellular biomarker levels, protein carbonyl content, and malondialdehyde concentration. The anti-aging-related molecular genetic mechanisms of dung beetle GAG are not yet fully elucidated. RESULTS Catharsius molossus (a type of dung beetle) GAG (CaG) possessed anti-aging activities; it reduced the serum level of creatinine kinase, had aortic vasorelaxant activities and cardioprotective actions, and maintained a normal glucose level in treated rats. Microarray analysis was performed with a rat 30 K cDNA clone set array to identify the gene-expression profiles of 14-month-old SD rats treated with dung beetle glycosaminoglycan 5 mg/kg (CaG5) over a 1-month period, which was done to investigate its anti-aging effect as compared to that of either Bombus ignitus (a type of bumblebee) queen GAG 5 mg/kg (IQG5) or chondroitin sulfate 10 mg/kg. CaG5 and IQG5 had marked anti-inflammatory effects, bringing about inhibition of free fatty acid, uric acid, sGPT, IL-1 beta, and CK values. In addition, anticoagulant and antithrombotic effects were seen: the concentration of factor 1 (fibrinogen) was increased in CaG- treated rat plasma. The CaG5-treated rat group, compared to the control, displayed upregulation of 131 genes, including lipocalin 2 (Lbp) and a serine peptidase inhibitor, Kaszal type3 (Spink3), and 64 downregulated genes, including lysyl oxidase (Lox), serine dehydratase (sds), and retinol saturase (Retsat). CONCLUSION Our data suggest that dung beetle glycosaminoglycan may be a helpful treatment for aged rats, which indicates its potential as a therapeutic biomaterial for aging.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration (RDA), Wanju-Gun, 55365 South Korea
| | - Ban Ji Kim
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration (RDA), Wanju-Gun, 55365 South Korea
| | - Ha Jeong Kim
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration (RDA), Wanju-Gun, 55365 South Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration (RDA), Wanju-Gun, 55365 South Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon, 442-749 South Korea
| | - Kun-Koo Park
- Pharmacogenechips Inc., Chuncheon, 200-160 South Korea
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Chu M, Hai W, Zhang Z, Wo F, Wu Q, Zhang Z, Shao Y, Zhang D, Jin L, Shi D. Melanin nanoparticles derived from a homology of medicine and food for sentinel lymph node mapping and photothermal in vivo cancer therapy. Biomaterials 2016; 91:182-199. [PMID: 27031812 DOI: 10.1016/j.biomaterials.2016.03.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 03/09/2016] [Accepted: 03/13/2016] [Indexed: 10/22/2022]
Abstract
The use of non-toxic or low toxicity materials exhibiting dual functionality for use in sentinel lymph node (SLN) mapping and cancer therapy has attracted considerable attention during the past two decades. Herein, we report that the natural black sesame melanin (BSM) extracted from black sesame seeds (Sesamum indicum L.) shows exciting potential for SLN mapping and cancer photothermal therapy. Aqueous solutions of BSM under neutral and alkaline conditions can assemble into sheet-like nanoparticles ranging from 20 to 200 nm in size. The BSM nanoparticles were encapsulated by liposomes to improve their water solubility and the encapsulated and bare BSM nanoparticles were both non-toxic to cells. Furthermore, the liposome-encapsulated BSM nanoparticles (liposome-BSM) did not exhibit any long-term toxicity in mice. The liposome-BSM nanoparticles were subsequently used to passively target healthy and tumor-bearing mice SLNs, which were identified by the black color of the nanoparticles. BSM also strongly absorbed light in the near-infrared (NIR) range, which was rapidly converted to heat energy. Human esophagus carcinoma cells (Eca-109) were killed efficiently by liposome-BSM nanocomposites upon NIR laser irradiation. Furthermore, mouse tumor tissues grown from Eca-109 cells were seriously damaged by the photothermal effects of the liposome-BSM nanocomposites, with significant tumor growth suppression compared with controls. Given that BSM is a safe and nutritious biomaterial that can be easily obtained from black sesame seed, the results presented herein represent an important development in the use of natural biomaterials for clinical SLN mapping and cancer therapy.
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Affiliation(s)
- Maoquan Chu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China.
| | - Wangxi Hai
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Zheyu Zhang
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Fangjie Wo
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Qiang Wu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Zefei Zhang
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Yuxiang Shao
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Ding Zhang
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Lu Jin
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Donglu Shi
- School of Medicine, Tongji University, Shanghai, PR China; The Materials Science and Engineering Program, Department of Mechanical and Materials Engineering, College of Engineering & Applied Science, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
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35
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Song S, Li S, Su N, Li J, Shi F, Ye M. Structural characterization, molecular modification and hepatoprotective effect of melanin from Lachnum YM226 on acute alcohol-induced liver injury in mice. Food Funct 2016; 7:3617-27. [DOI: 10.1039/c6fo00333h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this paper, we obtained the possible structural formula of the intracellular melanin of Lachnum YM226 and evaluated the protective effect of this melanin and itsd-glucosamine-modified product on acute alcohol-induced liver injury in mice.
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Affiliation(s)
- Sheng Song
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
| | - Shenglan Li
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
| | - Nana Su
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
| | - Jinglei Li
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
| | - Fang Shi
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
| | - Ming Ye
- School of food science and engineering
- Hefei University of Technology
- Hefei
- China
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36
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Identification of N-Acetyldopamine Dimers from the Dung Beetle Catharsius molossus and Their COX-1 and COX-2 Inhibitory Activities. Molecules 2015; 20:15589-96. [PMID: 26343619 PMCID: PMC6331819 DOI: 10.3390/molecules200915589] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/10/2015] [Accepted: 08/17/2015] [Indexed: 11/26/2022] Open
Abstract
Recent studies focusing on identifying the biological agents of Catharsius molossus have led to the identification of three new N-acetyldopamine dimers molossusamide A–C (1−3) and two known compounds 4 and 5. The structures of the new compounds were identified by comprehensive spectroscopic evidences. Compound 4 was found to have inhibitory effects towards COX-1 and COX-2.
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Zottis ADA, Beltrame JM, Lara LRS, Costa TG, Feldhaus MJ, Pedrosa RC, Ourique F, de Campos CEM, Isoppo EDA, da Silva Miranda F, Szpoganicz B. Pheomelanin-coated iron oxide magnetic nanoparticles: a promising candidate for negative T2 contrast enhancement in magnetic resonance imaging. Chem Commun (Camb) 2015; 51:11194-7. [PMID: 26073290 DOI: 10.1039/c5cc02536b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We describe herein a novel type of monodisperse water-soluble magnetite nanoparticle coated with pheomelanin using an environmentally-friendly approach in aqueous medium. The results indicate superparamagnetic behaviour at room temperature and show improved negative contrast in T2-weighted MRI with a transverse relaxivity of 218 mM(-1) s(-1).
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Affiliation(s)
- Alexandre D A Zottis
- Academic Department of Health and Services, Nucleus of Clinical Technology, Instituto Federal de Educação, Ciência e Tecnologia de Santa Catarina, Campus Florianópolis, SC, 88020-300, Brazil.
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