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Wilson W, Lowman D, Puthumana J, Kuriakose R, Singh ISB, Philip R. Biocompatible melanin from the marine black yeast Hortaea werneckii R23 with antioxidant and photoprotection property. Braz J Microbiol 2024:10.1007/s42770-024-01483-y. [PMID: 39155342 DOI: 10.1007/s42770-024-01483-y] [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: 05/23/2024] [Accepted: 08/03/2024] [Indexed: 08/20/2024] Open
Abstract
Pigments from diverse sources have a great deal of interest due to its multifaceted applications. Hence, this study reports the physicochemical and functional characterization of the black pigment melanin from the marine black yeast Hortaea werneckii R23. In the present study, Hortaea werneckii R23, produced a black pigment in the yeast biomass. The pigment was extracted from the harvested yeast biomass and followed by pigment purification, characterization and identification was done. Physicochemical characterization of the pigment showed acid precipitation, alkali solubilization, insolubility in most organic solvents and water. The black pigment was confirmed as melanin based on ultraviolet-visible spectroscopy, Fourier-transform infrared, and Nuclear magnetic resonance spectroscopy analyses. Furthermore, the analyses of the elemental composition indicated that the pigment possessed a moderately high percentage of nitrogen and also detectable proportion of sulfur. All these Physicochemical properties indicated that H. werneckii melanin (HwM) mostly consisted of eumelanin. HwM exhibited strong antioxidant potential as reactive oxygen species (ROS) scavenger by in vitro DPPH (1,1-diphenyl-2-picryl hydrazyl) and ABTS (2,2-azinobis-3-ethyl-benzothiozoline-6-sulphonic acid) radical scavenging assay, and lipid peroxidation assay. The photoprotectant role of HwM on UV-irradiated human epithelial cells (HEp-2) revealed its potential effect in photoprotection. In addition, cytotoxicity study by XTT and SRB assay confirmed its biocompatibility with HEp-2 cells. From these findings, it is evident that the HwM from the marine black yeast possesses strong antioxidant and photoprotectant activity, moreover, it is biocompatible to human epithelial cells. So HwM could be used as a protective agent against oxidative stress associated disorders in an environment-friendly perspective.
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Affiliation(s)
- Wilsy Wilson
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, 682016, Kerala, India
- St. Joseph's College, Irinjalakuda, 680121, University of Calicut, Kerala, India
| | - Douglas Lowman
- AppRidge International, LLC, Telford, TN, 37690-2235, USA
| | - Jayesh Puthumana
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Kochi, 682016, Kerala, India
| | - Reema Kuriakose
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, 682016, Kerala, India
| | - I S Bright Singh
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Kochi, 682016, Kerala, India
| | - Rosamma Philip
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, 682016, Kerala, India.
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2
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Cui G, Guo X, Deng L. Preparation strategies of mussel-inspired chitosan-based biomaterials for hemostasis. Front Pharmacol 2024; 15:1439036. [PMID: 39221147 PMCID: PMC11363193 DOI: 10.3389/fphar.2024.1439036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/09/2024] [Indexed: 09/04/2024] Open
Abstract
Chitosan (CS) has been extensively studied in wound care for its intrinsic hemostatic and antibacterial properties. However, CS has limiting hemostasis applications on account of its drawbacks such as poor adhesion in humid environments and water solubility at neutral pH. CS-based biomaterials, inspired by mussel-adhesive proteins, serve as a suggested platform by biomedical science. The reports show that the mussel-inspired CS-based hemostatic structure has negligible toxicity and excellent adhesiveness. Biomedicine has witnessed significant progress in the development of these hemostatic materials. This review summarizes the methods for the modification of CS by mussel-inspired chemistry. Moreover, the general method for preparation of mussel-inspired CS-based biomaterials is briefly discussed in this review. This work is expected to give a better understanding of opportunities and challenges of the mussel-inspired strategy for the functionalization of CS-based biomaterials in hemostasis and wound healing. This review is hoped to provide an important perspective on the preparation of mussel-inspired CS-based hemostatic materials.
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Affiliation(s)
- Guihua Cui
- Department of Chemistry, Jilin Medical University, Jilin, China
| | - Xiaoyu Guo
- Jilin Vocational College of Industry and Technology, Jilin, China
| | - Li Deng
- Department of Extracorporeal Life Support, The People’s Hospital of Gaozhou, Gaozhou, China
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3
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Zhang X, Lin Z, Feng Y, Kang F, Wang J, Lan X. Melanin-Targeting Radiotracers and Their Preclinical, Translational, and Clinical Status: From Past to Future. J Nucl Med 2024; 65:19S-28S. [PMID: 38719238 DOI: 10.2967/jnumed.123.266945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/31/2024] [Indexed: 07/16/2024] Open
Abstract
Melanin is one of the representative biomarkers of malignant melanoma and a potential target for diagnosis and therapy. With advancements in chemistry and radiolabeling technologies, promising strides have been made to synthesize radiolabeled melanin-binding molecules for various applications. We present an overview of melanin-targeted radiolabeled molecules and compare their features reported in preclinical studies. Clinical practice and trials are also discussed to elaborate on the safety and validity of the probes, and expanded applications beyond melanoma are reviewed. Melanin-targeted imaging holds potential value in the diagnosis, staging, and prognostic assessment of melanoma and other applications. Melanin-targeted radionuclide therapy possesses immense potential but requires more clinical validation. Furthermore, an intriguing avenue for future research involves expanding the application scope of melanin-targeted probes and exploring their value.
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Affiliation(s)
- Xiao Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, China
- Key Laboratory of Biological Targeted Therapy, Ministry of Education, Wuhan, China; and
| | - Zhaoguo Lin
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, China
- Key Laboratory of Biological Targeted Therapy, Ministry of Education, Wuhan, China; and
| | - Yuan Feng
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, China
- Key Laboratory of Biological Targeted Therapy, Ministry of Education, Wuhan, China; and
| | - Fei Kang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China;
- Hubei Key Laboratory of Molecular Imaging, Wuhan, China
- Key Laboratory of Biological Targeted Therapy, Ministry of Education, Wuhan, China; and
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4
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Yang F, Su Y, Yan C, Chen T, Cheung PCK. Attenuation of inflammatory bowel disease by oral administration of mucoadhesive polydopamine-coated yeast β-glucan via ROS scavenging and gut microbiota regulation. J Nanobiotechnology 2024; 22:166. [PMID: 38610032 PMCID: PMC11010398 DOI: 10.1186/s12951-024-02434-3] [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: 09/25/2023] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Treatment for inflammatory bowel disease (IBD) is challenging since current anti-inflammatory and immunosuppressive therapies do not address the underlying causes of the illness, which include increased levels of reactive oxygen species (ROS) and dysbiosis of the gut commensal microbiota. Additionally, these treatments often have systemic off-target effects and adverse side effects. In this study, we have developed a prebiotic yeast β-glucan nanocomplex coated with bio-adhesive polydopamine (YBNs@PDA) to effectively prolong their retention time in the gastrointestinal (GI) tract. The oral administration of YBNs@PDA restored the epithelium barriers, reduced ROS levels, and minimized systemic drug exposure while improved therapeutic efficacy in an acute colitis mouse model. Furthermore, 16S ribosomal RNA genes sequencing demonstrated a higher richness and diversity in gut microflora composition following the treatments. In particular, YBNs@PDA markedly augmented the abundance of Lachnospiraceae NK4A136 and Bifidobacterium, both of which are probiotics with crucial roles in relieving colitis via retaining gut homeostasis. Cumulatively, these results demonstrate that the potential of YBNs@PDA as a novel drug-free, ROS-scavenging and gut microbiota regulation nanoplatform for the treatment of GI disorders.
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Affiliation(s)
- Fan Yang
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Yuting Su
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chi Yan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Tianfeng Chen
- College of Chemistry and Materials Science, Jinan University, Guangzhou, China
| | - Peter Chi Keung Cheung
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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Petropoulos V, Mavridi-Printezi A, Menichetti A, Mordini D, Kabacinski P, Gianneschi NC, Montalti M, Maiuri M, Cerullo G. Sub-50 fs Formation of Charge Transfer States Rules the Fate of Photoexcitations in Eumelanin-Like Materials. J Phys Chem Lett 2024; 15:3639-3645. [PMID: 38530860 DOI: 10.1021/acs.jpclett.4c00170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Eumelanins play a crucial role as photoprotective agents for living organisms, yet the nature of the stationary and transient species involved in the light absorption and deactivation processes remains controversial. Moreover, the critical sub-100 fs time scale, which is key to the characterization of the primary excited species, has remained unexplored. Here, we study the eumelanin analogue polydopamine (PDA) and employ a combination of steady-state and transient optical spectroscopies to reveal the presence of spectrally broad coupled electronic transitions with, at least partial, charge-transfer (CT) character. We monitor the CT state dynamics using tunable sub-20 fs pulses. We find that high photon energy excitation results in accelerated (sub-20 fs) CT formation times while activating pathways, which lead to long-lived (≫1 ns), possibly reactive CT species. On the other hand, visible light excitation results in a slower (≈45 fs) formation of bound CT states, which, however, recombine on the ultrafast sub-2 ps time scale.
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Affiliation(s)
- Vasilis Petropoulos
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | | | - Arianna Menichetti
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Dario Mordini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Piotr Kabacinski
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Nathan C Gianneschi
- Departments of Chemistry, Materials Science & Engineering, Biomedical Engineering and Pharmacology, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry & Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Marco Montalti
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Margherita Maiuri
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Giulio Cerullo
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Istituto di Fotonica e Nanotecnologie (IFN)-Consiglio Nazionale delle Ricerche (CNR), Piazza Leonardo da Vinci 32, 20133 Milano, Italy
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6
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Alam MZ, Okonkwo CE, Cachaneski-Lopes JP, Graeff CFO, Batagin-Neto A, Tariq S, Varghese S, O'Connor MJ, Albadri AE, Webber JBW, Tarique M, Ayyash M, Kamal-Eldin A. Date fruit melanin is primarily based on (-)-epicatechin proanthocyanidin oligomers. Sci Rep 2024; 14:4863. [PMID: 38418836 PMCID: PMC10901811 DOI: 10.1038/s41598-024-55467-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
Plant-based melanin seems to be abundant, but it did not receive scientific attention despite its importance in plant biology and medicinal applications, e.g. photoprotection, radical scavenging, antimicrobial properties, etc. Date fruit melanin (DM) has complex, graphene-like, polymeric structure that needs characterization to understand its molecular properties and potential applications. This study provides the first investigation of the possible molecular composition of DM. High performance size-exclusion chromatography (HPSEC) suggested that DM contains oligomeric structures (569-3236 Da) and transmission electron microscopy (TEM) showed agglomeration of these structures in granules of low total porosity (10-1000 Å). Nuclear magnetic resonance (NMR) spectroscopy provided evidence for the presence of oligomeric proanthocyanidins and electron paramagnetic resonance (EPR) spectroscopy revealed a g-factor in the range 2.0034-2.005. Density functional theory (DFT) calculations suggested that the EPR signals can be associated with oligomeric proanthocyanidin structures having 4 and above molecular units of (-)-epicatechin. The discovery of edible melanin in date fruits and its characterization are expected to open a new area of research on its significance to nutritional and sensory characteristics of plant-based foods.
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Affiliation(s)
- Muneeba Zubair Alam
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Clinton Emeka Okonkwo
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - João P Cachaneski-Lopes
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
| | - Carlos F O Graeff
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
- Department of Physics, School of Sciences, São Paulo State University (UNESP), Bauru, SP, Brazil
| | - Augusto Batagin-Neto
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
- Institute of Sciences and Engineering, São Paulo State University (UNESP), Itapeva, SP, Brazil
| | - Saeed Tariq
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sabu Varghese
- Core Technology Platforms, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates
| | - Matthew J O'Connor
- Core Technology Platforms, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates
| | - Abuzar E Albadri
- Department of Chemistry, College of Science, Qassim University, 51452, Buraidah, Saudi Arabia
| | - J Beau W Webber
- Lab-Tools Ltd., Marlowe Innovation Centre, Marlowe Way, Ramsgate, CT12 6FA, UK
| | - Mohammed Tarique
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates.
- National Water and Energy Center (NWEC), United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates.
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El-Zawawy NA, Kenawy ER, Ahmed S, El-Sapagh S. Bioproduction and optimization of newly characterized melanin pigment from Streptomyces djakartensis NSS-3 with its anticancer, antimicrobial, and radioprotective properties. Microb Cell Fact 2024; 23:23. [PMID: 38229042 DOI: 10.1186/s12934-023-02276-y] [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: 10/02/2023] [Accepted: 12/15/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Melanin is a natural pigment that is considered a promising biomaterial for numerous biotechnological applications across several industries. Melanin has biomedical applications as antimicrobial, anticancer, and antioxidant properties. Additionally, in the pharmaceutical and cosmetic industries, it is used in drug delivery and as a radioprotective agent. Also, melanin has environmental uses in the fields of bioremediation and the food industry. The biosynthesis of melanin pigment is an area of interest for researchers due to its multifunctionality, high compatibility, and biodegradability. Therefore, our present work is the first attempt to characterize and optimize the productivity of melanin pigment from Streptomyces djakartensis NSS-3 concerning its radioprotection and biological properties. RESULTS Forty isolates of soil actinobacteria were isolated from the Wadi Allaqui Biosphere Reserve, Egypt. Only one isolate, ACT3, produced a dark brown melanin pigment extracellularly. This isolate was identified according to phenotypic properties and molecular phylogenetic analysis as Streptomyces djakartensis NSS-3 with accession number OP912881. Plackett-Burman experimental design (PBD) and response surface methodology (RSM) using a Box-Behnken design (BBD) were performed for optimum medium and culturing conditions for maximum pigment production, resulting in a 4.19-fold improvement in melanin production (118.73 mg/10 mL). The extracted melanin pigment was purified and characterized as belonging to nitrogen-free pyomelanin based on ultraviolet-visible spectrophotometry (UV-VIS), Fourier transform infrared (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and NMR studies. Purified melanin demonstrated potent scavenging activity with IC50 values of 18.03 µg/mL and revealed high potency as sunscreens (in vitro SPF = 18.5). Moreover, it showed a nontoxic effect on a normal cell line (WI38), while it had a concentration-dependent anticancer effect on HCT116, HEPG, and MCF7 cell lines with IC50 = 108.9, 43.83, and 81.99 µg/mL, respectively. Also, purified melanin had a detrimental effect on the tested MDR bacterial strains, of which PA-09 and SA-04 were clearly more susceptible to melanin compared with other strains with MICs of 6.25 and 25 µg/mL, respectively. CONCLUSION Our results demonstrated that the newly characterized pyomelanin from Streptomyces djakartensis NSS-3 has valuable biological properties due to its potential photoprotective, antioxidant, anticancer, antimicrobial, and lack of cytotoxic activities, which open up new prospects for using this natural melanin pigment in various biotechnological applications and avoiding chemical-based drugs.
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Affiliation(s)
- Nessma A El-Zawawy
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt.
| | - El-Refaie Kenawy
- Chemistry Department, Polymer Research Unit, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sara Ahmed
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Shimaa El-Sapagh
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
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Pandey S, Meshram V, Yehia HM, Alzahrani A, Akhtar N, Sur A. Efficient production and characterization of melanin from Thermothelomyces hinnuleus SP1, isolated from the coal mines of Chhattisgarh, India. Front Microbiol 2024; 14:1320116. [PMID: 38293558 PMCID: PMC10826702 DOI: 10.3389/fmicb.2023.1320116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/21/2023] [Indexed: 02/01/2024] Open
Abstract
In the present study, fungi were isolated and screened from barren land in south-eastern Coalfields limited (SECL) in Chhattisgarh, India. Out of 14 isolated fungi, only three fungal isolates exhibited pigmentation in screening studies. The isolated fungal strain SP1 exhibited the highest pigmentation, which was further utilized for in vivo production, purification, and characterization of melanin pigment. The physical and chemical properties of the fungal pigment showed insolubility in organic solvents and water, solubility in alkali, precipitation in acid, and decolorization with oxidizing agents. The physiochemical characterization and analytical studies of the extracted pigment using ultraviolet-visible spectroscopy and Fourier transform infrared (FTIR) confirmed it as a melanin pigment. The melanin-producing fungus SP1 was identified as Thermothelomyces hinnuleus based on 18S-rRNA sequence analysis. Furthermore, to enhance melanin production, a response surface methodology (RSM) was employed, specifically utilizing the central composite design (CCD). This approach focused on selecting efficient growth as well as progressive yield parameters such as optimal temperature (34.4°C), pH (5.0), and trace element concentration (56.24 mg). By implementing the suggested optimal conditions, the production rate of melanin increased by 62%, resulting in a yield of 28.3 mg/100 mL, which is comparatively higher than the actual yield (17.48 ± 2.19 mg/100 mL). Thus, T. hinnuleus SP1 holds great promise as a newly isolated fungal strain that could be used for the industrial production of melanin.
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Affiliation(s)
- Shalini Pandey
- Amity Institute of Biotechnology, Amity University, Raipur, Chhattisgarh, India
| | - Vineet Meshram
- Department of Biotechnology and Microbiology, Anjaneya University, Raipur, Chhattisgarh, India
| | - Hany M. Yehia
- Department of Food Science and Nutrition, Faculty of Home Economics, Helwan University, Cairo, Egypt
| | - Abdulhakeem Alzahrani
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Nadeem Akhtar
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Arunima Sur
- Amity Institute of Biotechnology, Amity University, Raipur, Chhattisgarh, India
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Li M, Xuan Y, Zhang W, Zhang S, An J. Polydopamine-containing nano-systems for cancer multi-mode diagnoses and therapies: A review. Int J Biol Macromol 2023; 247:125826. [PMID: 37455006 DOI: 10.1016/j.ijbiomac.2023.125826] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Polydopamine (PDA) has fascinating properties such as inherent biocompatibility, simple preparation, strong near-infrared absorption, high photothermal conversion efficiency, and strong metal ion chelation, which have catalyzed extensive research in PDA-containing multifunctional nano-systems particularly for biomedical applications. Thus, it is imperative to overview synthetic strategies of various PDA-containing nanoparticles (NPs) for state-of-the-art cancer multi-mode diagnoses and therapies applications, and offer a timely and comprehensive summary. In this review, we will focus on the synthetic approaches of PDA NPs, and summarize the construction strategies of PDA-containing NPs with different structure forms. Additionally, the application of PDA-containing NPs in bioimaging such as photoacoustic imaging, fluorescence imaging, magnetic resonance imaging and other imaging modalities will be reviewed. We will especially offer an overview of their therapeutic applications in tumor chemotherapy, photothermal therapy, photodynamic therapy, photocatalytic therapy, sonodynamic therapy, radionuclide therapy, gene therapy, immunotherapy and combination therapy. At the end, the current trends, limitations and future prospects of PDA-containing nano-systems will be discussed. This review aims to provide guidelines for new scientists in the field of how to design PDA-containing NPs and what has been achieved in this area, while offering comprehensive insights into the potential of PDA-containing nano-systems used in cancer diagnosis and treatment.
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Affiliation(s)
- Min Li
- Department of Nuclear Medicine, The First Hospital of Shanxi Medical University, Shanxi Medical University, Taiyuan 030001, Shanxi Province, PR China; Molecular Imaging Precision Medical Collaborative Innovation Center, Medical Imaging Department, Shanxi Medical University, Taiyuan 030001, Shanxi Province, PR China
| | - Yang Xuan
- Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, Dalian Minzu University, Dalian 116600, Liaoning Province, PR China
| | - Wenjun Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China; School of Chemical Engineering, Dalian University of Technology, Panjin 124221, PR China
| | - Shubiao Zhang
- Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, Dalian Minzu University, Dalian 116600, Liaoning Province, PR China.
| | - Jie An
- Department of Nuclear Medicine, The First Hospital of Shanxi Medical University, Shanxi Medical University, Taiyuan 030001, Shanxi Province, PR China; Molecular Imaging Precision Medical Collaborative Innovation Center, Medical Imaging Department, Shanxi Medical University, Taiyuan 030001, Shanxi Province, PR China.
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10
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Zhang R, Xu S, Yuan M, Guo L, Xie L, Liao Y, Xu Y, Fu X. An ultrasmall PVP-Fe-Cu-Ni-S nano-agent for synergistic cancer therapy through triggering ferroptosis and autophagy. NANOSCALE 2023; 15:12598-12611. [PMID: 37462439 DOI: 10.1039/d3nr02708b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Photothermal therapy (PTT) is an emerging field where photothermal agents could convert visible or near-infrared (NIR) radiation into heat to kill tumor cells. However, the low photothermal conversion efficiency of photothermal agents and their limited antitumor activities hinder the development of these agents into monotherapies for cancer. Herein, we have fabricated an ultrasmall polyvinylpyrrolidone (PVP)-Fe-Cu-Ni-S (PVP-NP) nano-agent via a simple hot injection method with excellent photothermal conversion efficiency (∼96%). Photothermal therapy with this nano-agent effectively inhibits tumor growth without apparent toxic side-effects. Mechanistically, our results demonstrated that, after NIR irradiation, PVP-NPs can induce ROS/singlet oxygen generation, decrease the mitochondrial membrane potential, release extracellular Fe2+, and consume glutathione, triggering autophagy and ferroptosis of cancer cells. Moreover, PVP-NPs exhibit excellent contrast enhancement according to magnetic resonance imaging (MRI) analysis. In summary, PVP-NPs have a high photothermal conversion efficiency and can be applied for MRI-guided synergistic photothermal/photodynamic/chemodynamic cancer therapy, resolving the bottleneck of existing phototherapeutic agents.
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Affiliation(s)
- Rongjun Zhang
- Institute of Molecular Medicine (IMM), Renji Hospital, State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai 200240, China
| | - Shuxiang Xu
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China.
- Binjiang Research Institute of Zhejiang University, Hangzhou, Zhejiang 310052, China
| | - Miaomiao Yuan
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518033, China
| | - Lihao Guo
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Luoyijun Xie
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518033, China
| | - Yingying Liao
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518033, China
| | - Yang Xu
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China.
- Binjiang Research Institute of Zhejiang University, Hangzhou, Zhejiang 310052, China
| | - Xuemei Fu
- International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China.
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Tong C, Luo J, Xie C, Wei J, Pan G, Zhou Z, Li C. Characterization and Biological Activities of Melanin from the Medicinal Fungi Ophiocordyceps sinensis. Int J Mol Sci 2023; 24:10282. [PMID: 37373428 DOI: 10.3390/ijms241210282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Melanin is a complex natural pigment that is widely present in fungi. The mushroom Ophiocordyceps sinensis has a variety of pharmacological effects. The active substances of O. sinensis have been extensively studied, but few studies have focused on the O. sinensis melanin. In this study, the production of melanin was increased by adding light or oxidative stress, namely, reactive oxygen species (ROS) or reactive nitrogen species (RNS), during liquid fermentation. Subsequently, the structure of the purified melanin was characterized using elemental analysis, ultraviolet-visible absorption spectrum, Fourier transform infrared (FTIR), electron paramagnetic resonance (EPR), and pyrolysis gas chromatography and mass spectrometry (Py-GCMS). Studies have shown that O. sinensis melanin is composed of C (50.59), H (6.18), O (33.90), N (8.19), and S (1.20), with maximum absorbance at 237 nm and typical melanin structures such as benzene, indole, and pyrrole. Additionally, the various biological activities of O. sinensis melanin have been discovered; it can chelate heavy metals and shows a strong ultraviolet-blocking ability. Moreover, O. sinensis melanin can reduce the levels of intracellular reactive oxygen species and counteract the oxidative damage of H2O2 to cells. These results can help us to develop applications of O. sinensis melanin in radiation resistance, heavy metal pollution remediation, and antioxidant use.
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Affiliation(s)
- Chaoqun Tong
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
| | - Jian Luo
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou 571199, China
- NHC Key Laboratory of Tropical Disease Control, Hainan Medical University, Haikou 571199, China
| | - Chaolu Xie
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
| | - Junhong Wei
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
| | - Guoqing Pan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
| | - Zeyang Zhou
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Chunfeng Li
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Microsporidia Infection and Prevention, Southwest University, Chongqing 400715, China
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12
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Wang W, Zhang K, Lin C, Zhao S, Guan J, Zhou W, Ru X, Cong H, Yang Q. Influence of Cmr1 in the Regulation of Antioxidant Function Melanin Biosynthesis in Aureobasidium pullulans. Foods 2023; 12:foods12112135. [PMID: 37297380 DOI: 10.3390/foods12112135] [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: 04/15/2023] [Revised: 05/18/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
We have successfully identified the transcription factor Cmr1 from the fungus Aureobasidium pullulans Hit-lcy3T, which regulates melanin biosynthesis genes. Bioinformatics analysis revealed that the Cmr1 gene encodes a protein of 945 amino acids, containing two Cys2His2 zinc finger domains and a Zn(II)2Cys6 binuclear cluster domain located at the N-terminus of Cmr1. To investigate the function of the Cmr1 gene, we performed gene knockout and overexpression experiments. Our results showed that Cmr1 is a key regulator of melanin synthesis in Hit-lcy3T, and its absence caused developmental defects. Conversely, overexpression of Cmr1 significantly increased the number of chlamydospores in Hit-lcy3T and improved melanin production. RT-qPCR analysis further revealed that overexpression of Cmr1 enhanced the expression of several genes involved in melanin biosynthesis, including Cmr1, PKS, SCD1, and THR1. Melanin extracted from the Hit-lcy3T was characterized using UV and IR spectroscopy. Furthermore, we assessed the antioxidant properties of Hit-lcy3T melanin and found that it possesses strong scavenging activity against DPPH·, ABTS·, and OH·, but weaker activity against O2-·. These findings suggest that Hit-lcy3T melanin holds promise for future development as a functional food additive.
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Affiliation(s)
- Wan Wang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Kai Zhang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Congyu Lin
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shanshan Zhao
- Ocean College, Zhejiang University, Zhoushan 316000, China
| | - Jiaqi Guan
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Wei Zhou
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Xin Ru
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Hua Cong
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Qian Yang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China
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13
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Bayram S, Aygün B, Karadayi M, Alaylar B, Güllüce M, Karabulut A. Determination of toxicity and radioprotective properties of bacterial and fungal eumelanin pigments. Int J Radiat Biol 2023; 99:1785-1793. [PMID: 37071465 DOI: 10.1080/09553002.2023.2204957] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/21/2023] [Indexed: 04/19/2023]
Abstract
PURPOSE Determination of the protective property of melanin, an organic polymer class consisting of phenolic and/or indolic compounds isolated from bacteria and fungi, against fast neutron radiation. To show that these melanin samples, which also have antioxidant and metal chelating properties, can be used as an active ingredient for a drug to be developed against neutrons used in nuclear research and medicine. MATERIALS AND METHODS Bacterial and fungal media were prepared, and melanin pigments were produced and isolated. For molecular characterization of pigments, bacterial genomic DNA extraction, 16S rDNA gene amplification processes, and fungal genomic DNA extraction, ITS1, and ITS4 Gene Regions amplification were performed. The DEL assay was implemented to determine the genotoxicity properties of bacterial and fungal melanin pigments. Samples were prepared in a pad measuring 10 ml volume (60 × 15 mm) at a concentration of 0.2-1 microgram in 1% agarose gel for radiation-absorbed dose measurements. Absorption measurements were made using 241Am-Be fast neutron source and Canberra brand NP series BF3 gaseous detector to determine the neutron radiation absorption capacity of all samples. The results obtained to determine the absorption degrees of melanin samples were compared with paraffin and normal concrete, which are widely used in neutron radiation shielding studies. RESULTS Melanin pigments were obtained using different bacteria and fungi strains. Afterwards, the fast neutron radiation absorption capacity of these purified pigments were determined. Compared to reference samples, these pigments were found to have slightly lower radiation absorbing ability. In addition to these experiments, cytotoxicity tests were carried out using the Yeast DEL assay technique to evaluate the potential for use of these organic pigments in fields such as medicine and pharmacology. According to the results obtained from the tests, it was determined that these melanin samples did not have any toxic effects. CONCLUSION It was determined that these melanin samples have the potential to be used as a radioprotective drug active substance to protect the tissues and cells of people exposed to neutron radiation after a nuclear accident or nuclear war.Giving a drug that will be developed by using these active ingredients before or after people are exposed to a radiation environment can provide great benefits.
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Affiliation(s)
- Sinan Bayram
- Department of Medical Services and Techniques, Vocational School of Health Services, Bayburt University, Bayburt, Turkey
| | - Bünyamin Aygün
- Department of Electronics and Automation, Vocational School, Agri Ibrahim Cecen University, Agri, Turkey
| | - Mehmet Karadayi
- Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Burak Alaylar
- Department of Molecular Biology and Genetics, Faculty of Science and Arts, Agri Ibrahim Cecen University, Agri, Turkey
| | - Medine Güllüce
- Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey
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14
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Wang X, Kinziabulatova L, Bortoli M, Manickoth A, Barilla MA, Huang H, Blancafort L, Kohler B, Lumb JP. Indole-5,6-quinones display hallmark properties of eumelanin. Nat Chem 2023:10.1038/s41557-023-01175-4. [PMID: 37037912 DOI: 10.1038/s41557-023-01175-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 03/07/2023] [Indexed: 04/12/2023]
Abstract
Melanins are ubiquitous biopolymers produced from phenols and catechols by oxidation. They provide photoprotection, pigmentation and redox activity to most life forms, and inspire synthetic materials with desirable optical, electronic and mechanical properties. The chemical structures of melanins remain elusive, however, creating uncertainty about their roles, and preventing the design of synthetic mimics with tailored properties. Indole-5,6-quinone (IQ) has been implicated as a biosynthetic intermediate and structural subunit of mammalian eumelanin pigments, but its instability has prevented its isolation and unambiguous characterization. Here we use steric shielding to stabilize IQ and show that 'blocked' derivatives exhibit eumelanin's characteristic ultrafast nonradiative decay and its ability to absorb light from the ultraviolet to the near-infrared. These new compounds are also redox-active and a source of paramagnetism, emulating eumelanin's unique electronic properties, which include persistent radicals. Blocked IQs are atomistically precise and tailorable molecules that can offer a bottom-up understanding of emergent properties in eumelanin and have the potential to advance the rational design of melanin-inspired materials.
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Affiliation(s)
- Xueqing Wang
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - Lilia Kinziabulatova
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Marco Bortoli
- Institut de Química Computacional i Catàlisi, Facultat de Ciències, Universitat de Girona, Girona, Spain
| | - Anju Manickoth
- Institut de Química Computacional i Catàlisi, Facultat de Ciències, Universitat de Girona, Girona, Spain
| | - Marisa A Barilla
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Haiyan Huang
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - Lluís Blancafort
- Institut de Química Computacional i Catàlisi, Facultat de Ciències, Universitat de Girona, Girona, Spain.
| | - Bern Kohler
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA.
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, Montreal, Quebec, Canada.
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15
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Wan L, Cao Y, Cheng C, Tang R, Wu N, Zhou Y, Xiong X, He H, Lin X, Jiang Q, Wang X, Guo X, Wang D, Ran H, Ren J, Zhou Y, Hu Z, Li P. Biomimetic, pH-Responsive Nanoplatforms for Cancer Multimodal Imaging and Photothermal Immunotherapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1784-1797. [PMID: 36580421 DOI: 10.1021/acsami.2c16667] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Photothermal therapy (PTT), by converting light to thermal energy, has become a novel and noninvasive technique for tumor thermal ablation in clinical practice. However, as a result of phagocytosis of reticuloendothelial cells, current photothermal agents (PTAs) derived from exogenous materials suffer from incompetent tumor targeting and brief internal circulation time. The resulting poor accumulation of PTAs in the target area severely reduces the efficacy of PTT. In addition, the potential toxicity of PTAs, excessive laser exposure, and possibilities of tumor recurrence and metastasis following PTT are still intractable problems that severely influence patients' quality of life. Herein, a biomimetic pH-responsive nanoprobe was prepared via cancer cell membrane coating polydopamine (PDA)-CaCO3 nanoparticles (CPCaNPs) for photoacoustic (PA)/ultrasonic (US)/thermal imaging-guided PTT. When CPCaNPs targeted and infiltrated into the tumor's acidic microenvironment, the decomposed CO2 bubbles from homologous targeting CPCaNPs enhanced ultrasonic (US) signals obviously. At the same time, the PDA of CPCaNPs not only performed efficient PTT of primary tumors but also generated photoacoustic (PA) signals. In addition, an immune checkpoint pathway blockade was combined, which inhibited tumor recurrence and metastasis significantly and improved the immunosuppressive microenvironment after PTT to a large extent. Thus, these proposed biomimetic pH-responsive CPCaNPs provide a promising strategy for precise PTT immunotherapy under the intelligent guidance of PA/US/thermal imaging and show great potential for clinical translation.
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Affiliation(s)
- Li Wan
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Health Management (Physical Examination) Center, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Yuting Cao
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Chen Cheng
- Department of Ultrasound, Bishan Hospital of Chongqing, Bishan Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Rui Tang
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Nianhong Wu
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Ying Zhou
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Xialin Xiong
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Hongye He
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Xiaohong Lin
- Department of Ultrasound, Chongqing General Hospital, Chongqing 401147, P. R. China
| | - Qinqin Jiang
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Xiaoting Wang
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Xun Guo
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Dong Wang
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Haitao Ran
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Jianli Ren
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Yang Zhou
- Department of Ultrasound, The Third People's Hospital of Chengdu City, The Affiliated Hospital of Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Zhongqian Hu
- Department of Ultrasound, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, P. R. China
| | - Pan Li
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing 400010, P. R. China
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Alghamdi K, Alehaideb Z, Kumar A, Al-Eidi H, Alghamdi SS, Suliman R, Ali R, Almourfi F, Alghamdi SM, Boudjelal M, Matou-Nasri S. Stimulatory effects of Lycium shawii on human melanocyte proliferation, migration, and melanogenesis: In vitro and in silico studies. Front Pharmacol 2023; 14:1169812. [PMID: 37197407 PMCID: PMC10184183 DOI: 10.3389/fphar.2023.1169812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/03/2023] [Indexed: 05/19/2023] Open
Abstract
There is no first-line treatment for vitiligo, a skin disease characterized by a lack of melanin produced by the melanocytes, resulting in an urgent demand for new therapeutic drugs capable of stimulating melanocyte functions, including melanogenesis. In this study, traditional medicinal plant extracts were tested for cultured human melanocyte proliferation, migration, and melanogenesis using MTT, scratch wound-healing assays, transmission electron microscopy, immunofluorescence staining, and Western blot technology. Of the methanolic extracts, Lycium shawii L. (L. shawii) extract increased melanocyte proliferation at low concentrations and modulated melanocyte migration. At the lowest tested concentration (i.e., 7.8 μg/mL), the L. shawii methanolic extract promoted melanosome formation, maturation, and enhanced melanin production, which was associated with the upregulation of microphthalmia-associated transcription factor (MITF), tyrosinase, tyrosinase-related protein (TRP)-1 and TRP-2 melanogenesis-related proteins, and melanogenesis-related proteins. After the chemical analysis and L. shawii extract-derived metabolite identification, the in silico studies revealed the molecular interactions between Metabolite 5, identified as apigenin (4,5,6-trihydroxyflavone), and the copper active site of tyrosinase, predicting enhanced tyrosinase activity and subsequent melanin formation. In conclusion, L. shawii methanolic extract stimulates melanocyte functions, including melanin production, and its derivative Metabolite 5 enhances tyrosinase activity, suggesting further investigation of the L. shawii extract-derived Metabolite 5 as a potential natural drug for vitiligo treatment.
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Affiliation(s)
- Khalid Alghamdi
- Department of Dermatology (DOD), College of Medicine (COM), King Saud University (KSU), Riyadh, Saudi Arabia
- Vitiligo Research Chair, DOD, COM, KSU, Riyadh, Saudi Arabia
| | - Zeyad Alehaideb
- Department of Core Medical Research Facility and Platform, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs (MNGHA), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
| | - Ashok Kumar
- Department of Dermatology (DOD), College of Medicine (COM), King Saud University (KSU), Riyadh, Saudi Arabia
- Vitiligo Research Chair, DOD, COM, KSU, Riyadh, Saudi Arabia
| | - Hamad Al-Eidi
- Cell and Gene Therapy Group, Medical Genomics Research Department, KAIMRC, KSAU-HS, MNGHA, Riyadh, Saudi Arabia
| | - Sahar S. Alghamdi
- Department of Core Medical Research Facility and Platform, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs (MNGHA), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
- Department of Pharmaceutical Sciences, College of Pharmacy, KSAU-HS, KAIMRC, MNGHA, Riyadh, Saudi Arabia
| | - Rasha Suliman
- Department of Pharmacy, Fatima College of Health Sciences, Abu Dhabi, United Arab Emirates
| | - Rizwan Ali
- Department of Core Medical Research Facility and Platform, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs (MNGHA), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
| | - Feras Almourfi
- Department of Core Medical Research Facility and Platform, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs (MNGHA), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
| | | | - Mohamed Boudjelal
- Department of Core Medical Research Facility and Platform, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs (MNGHA), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
| | - Sabine Matou-Nasri
- Cell and Gene Therapy Group, Medical Genomics Research Department, KAIMRC, KSAU-HS, MNGHA, Riyadh, Saudi Arabia
- Blood and Cancer Research Department, KAIMRC, KSAU-HS, MNGHA, Riyadh, Saudi Arabia
- *Correspondence: Sabine Matou-Nasri,
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17
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Zhou Y, Yang Y, Liu R, Zhou Q, Lu H, Zhang W. Research Progress of Polydopamine Hydrogel in the Prevention and Treatment of Oral Diseases. Int J Nanomedicine 2023; 18:2623-2645. [PMID: 37213351 PMCID: PMC10199686 DOI: 10.2147/ijn.s407044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/12/2023] [Indexed: 05/23/2023] Open
Abstract
Oral diseases represent one of the most prevalent diseases globally and are associated with serious health and economic burdens, greatly altering the quality of life of affected individuals. Various biomaterials play important roles in the treatment of oral diseases. To some extent, the development of biomaterials has promoted progress in clinically available oral medicines. Hydrogels have unique tunable advantages that make them useful in the next generation of regenerative strategies and have been widely applied in both oral soft and hard tissues repair. However, most hydrogels lack self-adhesive properties, which may result in low repair efficacy. Polydopamine (PDA), the primary adhesive component, has attracted increasing attention in recent years. PDA-modified hydrogels exhibit reliable and suitable adherence to tissues and easily integrate into tissues to promote repair efficiency. This paper reviews the latest research progress on PDA hydrogels and elaborates on the mechanism of the reaction between PDA functional groups and hydrogels, and summarizes the biological properties and the applications of PDA hydrogels in the prevention and treatment of the field of oral diseases. It is also proposed that in future research we should simulate the complex microenvironment of the oral cavity as much as possible, coordinate and plan various biological events rationally, and realize the translation from scientific research to clinical practice.
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Affiliation(s)
- Yuqi Zhou
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Yuanmeng Yang
- Department of Preventive Dentistry, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Rongpu Liu
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Qin Zhou
- Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Haixia Lu
- Department of Preventive Dentistry, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Haixia Lu, Department of Preventive Dentistry, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, People’s Republic of China, Email
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Correspondence: Wenjie Zhang, Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, People’s Republic of China, Email
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18
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Predoi D, Iconaru SL, Predoi MV, Buton N. Development of Novel Tetracycline and Ciprofloxacin Loaded Silver Doped Hydroxyapatite Suspensions for Biomedical Applications. Antibiotics (Basel) 2022; 12:antibiotics12010074. [PMID: 36671274 PMCID: PMC9855057 DOI: 10.3390/antibiotics12010074] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
The objective of this study consisted of the development of new materials with antimicrobial properties at the nanometric scale that could lead to an increase in therapeutic efficacy and reduction of toxic side effects. This work focuses on obtaining and characterizing stable suspensions with narrow size distribution with antimicrobial properties. The stability of the suspensions obtained by an adapted co-precipitation method was evaluated by ultrasonic measurements. The size and size distribution of the particle populations were determined using scanning electron microscopy (SEM), and dynamic light scattering (DLS). Both methods of analysis showed a narrow distribution of particles. DLS gave a monomodal distribution with hydrodynamic diameters around 38 nm for ciprofloxacin embedded in silver doped hydroxyapatite (AgHA-C) and 45.7 nm for tetracycline embedded in silver doped hydroxyapatite (AgHA-T). The average diameters calculated from SEM were 17 nm for AgHA-C and 19 nm for AgHA-T. Both Ciprofloxacin and Tetracycline influenced the hydroxyapatite structure, which led to the appearance of new vibrational bands characteristic of the specific chemical composition in the FTIR spectrum. The antimicrobial properties of the AgHA-C and AgHA-T suspensions were assessed using the most common reference microbial strains Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, and Candida albicans ATCC 10231. The results of the in vitro antimicrobial assays determined that the AgHA-C and AgHA-T suspensions exhibited exceptional antimicrobial activity. Moreover, the data revealed that the antimicrobial activity increased with the increase of the incubation time.
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Affiliation(s)
- Daniela Predoi
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
- Correspondence: (D.P.); (S.-L.I.); (M.-V.P.)
| | - Simona-Liliana Iconaru
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
- Correspondence: (D.P.); (S.-L.I.); (M.-V.P.)
| | - Mihai-Valentin Predoi
- Department of Mechanics, University Politehnica of Bucharest, BN 002, 313 Splaiul Independentei, Sector 6, 060042 Bucharest, Romania
- Correspondence: (D.P.); (S.-L.I.); (M.-V.P.)
| | - Nicolas Buton
- HORIBA Jobin Yvon S.A.S., 6-18, Rue du Canal, CEDEX, 91165 Longjumeau, France
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Jung W, Lee DY, Moon E, Jon S. Nanoparticles derived from naturally occurring metal chelators for theranostic applications. Adv Drug Deliv Rev 2022; 191:114620. [PMID: 36379406 DOI: 10.1016/j.addr.2022.114620] [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: 08/31/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/15/2022]
Abstract
Metals are indispensable for the activities of all living things, from single-celled organisms to higher organisms, including humans. Beyond their intrinsic quality as metal ions, metals help creatures to maintain requisite biological processes by forming coordination complexes with endogenous ligands that are broadly distributed in nature. These types of naturally occurring chelating reactions are found through the kingdoms of life, including bacteria, plants and animals. Mimicking these naturally occurring coordination complexes with intrinsic biocompatibility may offer an opportunity to develop nanomedicine toward clinical applications. Herein, we introduce representative examples of naturally occurring coordination complexes in a selection of model organisms and highlight such bio-inspired metal-chelating nanomaterials for theranostic applications.
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Affiliation(s)
- Wonsik Jung
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea; Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Dong Yun Lee
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Seoul 05505, Republic of Korea; Translational Biomedical Research Group, Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, 88 Olympic-ro 43-gil, Seoul 05505, Republic of Korea.
| | - Eugene Moon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea; Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Sangyong Jon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea; Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea.
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20
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Shahabadi N, Zendehcheshm S, Khademi F. Exploring the ct-DNA and plasmid DNA binding affinity of the biogenic synthesized Chloroxine-conjugated silver nanoflowers: Spectroscopic and gel electrophoresis methods. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.024] [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: 11/25/2022]
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21
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Sarkari S, Khajehmohammadi M, Davari N, Li D, Yu B. The effects of process parameters on polydopamine coatings employed in tissue engineering applications. Front Bioeng Biotechnol 2022; 10:1005413. [PMID: 36172013 PMCID: PMC9512135 DOI: 10.3389/fbioe.2022.1005413] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/17/2022] [Indexed: 12/12/2022] Open
Abstract
The biomaterials’ success within the tissue engineering field is hinged on the capability to regulate tissue and cell responses, comprising cellular adhesion, as well as repair and immune processes’ induction. In an attempt to enhance and fulfill these biomaterials’ functions, scholars have been inspired by nature; in this regard, surface modification via coating the biomaterials with polydopamine is one of the most successful inspirations endowing the biomaterials with surface adhesive properties. By employing this approach, favorable results have been achieved in various tissue engineering-related experiments, a significant one of which is the more rapid cellular growth observed on the polydopamine-coated substrates compared to the untreated ones; nonetheless, some considerations regarding polydopamine-coated surfaces should be taken into account to control the ultimate outcomes. In this mini-review, the importance of coatings in the tissue engineering field, the different types of surfaces requiring coatings, the significance of polydopamine coatings, critical factors affecting the result of the coating procedure, and recent investigations concerning applications of polydopamine-coated biomaterials in tissue engineering are thoroughly discussed.
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Affiliation(s)
- Soulmaz Sarkari
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mehran Khajehmohammadi
- Department of Mechanical Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
- Medical Nanotechnology and Tissue Engineering Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Niyousha Davari
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Dejian Li
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- *Correspondence: Dejian Li, ; Baoqing Yu,
| | - Baoqing Yu
- Department of Orthopedics, Shanghai Pudong New Area People’s Hospital, Shanghai, China
- *Correspondence: Dejian Li, ; Baoqing Yu,
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22
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Hong Y, Kim B, Jeong J, Bisht H, Park S, Hong D. Antifouling Surface Coating on Various Substrates by Inducing Tyrosinase-Mediated Oxidation of a Tyrosine-Conjugated Sulfobetaine Derivative. Biomacromolecules 2022; 23:4349-4356. [PMID: 36049071 DOI: 10.1021/acs.biomac.2c00804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the melanogenesis occurring in nature, we report tyrosinase-mediated antifouling surface coating by synthesizing a tyrosine-conjugated sulfobetaine derivative (Tyr-SB). Synthetic Tyr-SB contains zwitterionic sulfobetaine and tyrosine, whose phenolic amine group acts as a dormant coating precursor. In contrast to catecholamine derivatives, tyrosine derivatives are stable against auto-oxidation and are enzymatically oxidized only in the presence of tyrosinase to initiate melanin-like oxidation. When the surface of interest was applied during the course of Tyr-SB oxidation, a superhydrophilic poly(Tyr-SB) film was coated on the surfaces, thereby showing antifouling performance against proteins or adherent cells. Because the oxidation of Tyr-SB occurred under mild aqueous conditions (pH 6-7) without the use of any chemical oxidants, such as sodium periodate or ammonium persulfate, we anticipate that the coating method described herein will serve as a biocompatible tool in the field of biosensors, cell surface engineering, and medical devices, whose interfaces differ in chemistry.
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Affiliation(s)
- Yubin Hong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Byeol Kim
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Jaehoon Jeong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Himani Bisht
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Suho Park
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Daewha Hong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
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23
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Ibraheem DR, Hussein NN, Sulaiman GM, Mohammed HA, Khan RA, Al Rugaie O. Ciprofloxacin-Loaded Silver Nanoparticles as Potent Nano-Antibiotics against Resistant Pathogenic Bacteria. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162808. [PMID: 36014673 PMCID: PMC9415342 DOI: 10.3390/nano12162808] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 06/01/2023]
Abstract
Silver nanoparticles (AgNPs) have demonstrated numerous physicochemical, biological, and functional properties suitable for biomedical applications, including antibacterial and drug carrier properties. In the present study, the antibiotic, ciprofloxacin (CIP), was loaded onto AgNPs, which were synthesized via the chemical reduction method, thereby enhancing CIP's antibacterial activity against Gram-negative (Acinetobacter baumannii and Serratia marcescens) and Gram-positive (Staphylococcus aureus) bacterial strains. Polyethylene glycol-400 (PEG) was used to prepare an AgNPs-PEG conjugate with enhanced stability and to act as the linker between CIP and AgNPs, to produce the novel nanocomposite, AgNPs-PEG-CIP. The prepared AgNPs and their conjugates were characterized by ultraviolet-visible spectrophotometry, Fourier-transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy with energy-dispersive X-ray spectroscopy, transmission electron microscopy, zeta potential analysis, and dynamic light scattering techniques. The inhibitory activity of AgNPs and their conjugates on the growths of pathogenic bacteria was assessed using the well-diffusion method. The results showed the enhanced antibacterial effects of AgNPs-CIP compared to CIP alone. The AgNPs-PEG-CIP nanocomposite showed excellent inhibitory effects against bacterial isolates, with its inhibition zones diameters reaching 39, 36, and 40 mm in S. aureus, A. baumannii, and S. marcescens, respectively. The minimum inhibitory concentration and minimum bactericidal concentration of fogNPs and their conjugates and their antibiofilm effects were also determined. The antioxidant potentials of AgNPs and their conjugates, tested via their 1,1-diphenyl-2-picryl-hydrazyl (DPPH) scavenging ability, showed that the activity increased with increasing AgNPs concentration and the addition of the PEG and/or CIP. Overall, according to the results obtained in the present study, the new nanocomposite, AgNPs-PEG-CIP, showed the highest antibacterial, antibiofilm, and antioxidant activity against the pathogenic bacteria tested, compared to CIP alone. The preparation has high clinical potential for prospective use as an antibacterial agent.
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Affiliation(s)
- Duaa R. Ibraheem
- Division of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq
| | - Nehia N. Hussein
- Division of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq
| | - Ghassan M. Sulaiman
- Division of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq
| | - Hamdoon A. Mohammed
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 51452, Saudi Arabia
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11371, Egypt
| | - Riaz A. Khan
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 51452, Saudi Arabia
| | - Osamah Al Rugaie
- Department of Basic Medical Sciences, College of Medicine and Medical Sciences, Qassim University, Unaizah 51911, Saudi Arabia
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24
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Vidallon MLP, Teo BM, Bishop AI, Tabor RF. Next-Generation Colloidal Materials for Ultrasound Imaging Applications. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1373-1396. [PMID: 35641393 DOI: 10.1016/j.ultrasmedbio.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 06/15/2023]
Abstract
Ultrasound has important applications, predominantly in the field of diagnostic imaging. Presently, colloidal systems such as microbubbles, phase-change emulsion droplets and particle systems with acoustic properties and multiresponsiveness are being developed to address typical issues faced when using commercial ultrasound contrast agents, and to extend the utility of such systems to targeted drug delivery and multimodal imaging. Current technologies and increasing research data on the chemistry, physics and materials science of new colloidal systems are also leading to the development of more complex, novel and application-specific colloidal assemblies with ultrasound contrast enhancement and other properties, which could be beneficial for multiple biomedical applications, especially imaging-guided treatments. In this article, we review recent developments in new colloids with applications that use ultrasound contrast enhancement. This work also highlights the emergence of colloidal materials fabricated from or modified with biologically derived and bio-inspired materials, particularly in the form of biopolymers and biomembranes. Challenges, limitations, potential developments and future directions of these next-generation colloidal systems are also presented and discussed.
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Affiliation(s)
| | - Boon Mian Teo
- School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Alexis I Bishop
- School of Physics and Astronomy, Monash University, Clayton, Victoria, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, Victoria, Australia.
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25
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Kim H, Lee UJ, Song H, Lee J, Song WS, Noh H, Kang MH, Kim BS, Park J, Hwang NS, Kim BG. Synthesis of soluble melanin nanoparticles under acidic conditions using Burkholderia cepacia tyrosinase and their characterization. RSC Adv 2022; 12:17434-17442. [PMID: 35765459 PMCID: PMC9189705 DOI: 10.1039/d2ra01276f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/07/2022] [Indexed: 11/29/2022] Open
Abstract
Melanin nanoparticles (MNPs) used for biomedical applications are often synthesized via the chemical auto-oxidation of catecholic monomers such as dopamine and 3,4-dihydroxyphenylalanine (DOPA) under alkaline conditions. However, the synthetic method for the chemical synthesis of MNP (cMNP) is relatively straightforward and more robust to control their homogenous particle size and morphology than the corresponding enzymatic synthetic methods. In this study, we demonstrated that the simple enzymatic synthesis of MNPs (eMNPs) with homogenous and soluble (<20 nm diameter) properties is possible using dopamine and Burkholderia cepacia tyrosinase (BcTy) under acidic conditions (i.e., pH 3.0). BcTy was highly reactive under pH 5.0, where the natural and chemical oxidation of catechol is complex, and thus melanin was synthesized via the hydroxylation of phenolic substrates. The detailed chemical analysis and characterization of the physical properties of the eMNPs confirmed the higher preservation of the catechol and primary amine moieties in the monomer substrate such as dopamine under acidic conditions. The eMNPs showed enhanced antioxidant activity and conferred stickiness to the formed hydrogel compared to the chemical auto-oxidation method owing to the large number of hydroxyl groups remaining such as catechol and quinone moieties. Because of these advantages and characteristics, the synthesis of MNPs using BcTy under acidic conditions can open a new path for their biomedical applications. Melanin nanoparticles (MNPs) used for biomedical applications are often synthesized via the chemical auto-oxidation of catecholic monomers such as dopamine and 3,4-dihydroxyphenylalanine (DOPA) under alkaline conditions.![]()
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Affiliation(s)
- Hyun Kim
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Uk-Jae Lee
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Hanbit Song
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Jeongchan Lee
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Won-Suk Song
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Heewon Noh
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea
| | - Min-Ho Kang
- Department of Biomedical-Chemical Engineering, Catholic University of Korea Bucheon 14662 Republic of Korea.,Department of Biotechnology, The Catholic University of Korea Bucheon 14662 Republic of Korea
| | - Beom-Seok Kim
- Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University Seoul 08826 Republic of Korea
| | - Jungwon Park
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Center for Nanoparticle Research, Institute for Basic Science (IBS) Seoul 08826 Republic of Korea
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University Seoul 08826 Republic of Korea .,Institute of Molecular Biology and Genetics, Seoul National University Seoul 08826 Republic of Korea.,Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University Seoul 08826 Republic of Korea.,Bio-MAX/N-Bio, Seoul National University Seoul 08826 Republic of Korea.,Institute for Sustainable Development (ISD), Seoul National University Seoul 08826 Republic of Korea
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26
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A critical review in the features and application of photocatalysts in wastewater treatment. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02256-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Li Z, Heng H, Qin Q, Chen L, Wang Y, Zhou Z. Physicochemical properties, molecular structure, antioxidant activity, and biological function of extracellular melanin from Ascosphaera apis. J Zhejiang Univ Sci B 2022; 23:365-381. [PMID: 35557038 DOI: 10.1631/jzus.b2100718] [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] [Indexed: 11/11/2022]
Abstract
Ascosphaera apis spores containing a dark-colored pigment infect honeybee larvae, resulting in a large-scale collapse of the bee colony due to chalkbrood disease. However, little is known about the pigment or whether it plays a role in bee infection caused by A. apis. In this study, the pigment was isolated by alkali extraction, acid hydrolysis, and repeated precipitation. Ultraviolet (UV) analysis revealed that the pigment had a color value of 273, a maximum absorption peak at 195 nm, and a high alkaline solubility (7.67%) and acid precipitability. Further chemical structure analysis of the pigment, including elemental composition, Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, mass spectrometry, and nuclear magnetic resonance (NMR), proved that it was a eumelanin with a typical indole structure. The molecular formula of melanin is C10H6O4N2, and its molecular weight is 409 Da. Melanin has hydroxyl, carboxyl, amino, and phenolic groups that can potentially chelate to metal ions. Antioxidant function analyses showed that A. apis melanin had a high scavenging activity against superoxide, hydroxyl, and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals, and a high reducing ability to Fe3+. Indirect immunofluorescence assay (IFA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analyses showed that A. apis melanin was located on the spore wall. The spore wall localization, antioxidant activity, and metal ion chelating properties of fungal melanin have been suggested to contribute to spore pathogenicity. However, further infection experiments showed that melanin-deficient spores did not reduce the mortality of bee larvae, indicating that melanin does not increase the virulence of A. apis spores. This study is the first report on melanin produced by A. apis, providing an important background reference for further study on its role in A. apis.
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Affiliation(s)
- Zhi Li
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China. .,Chongqing Key Laboratory of Vector Insects, Chongqing 401331, China. .,Chongqing Key Laboratory of Animal Biology, Chongqing 401331, China.
| | - Hui Heng
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Qiqian Qin
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Lanchun Chen
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Yuedi Wang
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Zeyang Zhou
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China.,Chongqing Key Laboratory of Microsporidia Infection and Control, Chongqing 400715, China.,The State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
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28
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Vidallon MLP, Salimova E, Crawford SA, Teo BM, Tabor RF, Bishop AI. Enhanced photoacoustic imaging in tissue-mimicking phantoms using polydopamine-shelled perfluorocarbon emulsion droplets. ULTRASONICS SONOCHEMISTRY 2022; 86:106041. [PMID: 35617883 PMCID: PMC9136156 DOI: 10.1016/j.ultsonch.2022.106041] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/10/2022] [Accepted: 05/14/2022] [Indexed: 05/05/2023]
Abstract
The current work features process parameters for the ultrasound (25 kHz)-assisted fabrication of polydopamine-shelled perfluorocarbon (PDA/PFC) emulsion droplets with bimodal (modes at 100-600 nm and 1-6 µm) and unimodal (200-600 nm) size distributions. Initial screening of these materials revealed that only PDA/PFC emulsion droplets with bimodal distributions showed photoacoustic signal enhancement due to large size of their optically absorbing PDA shells. Performance of this particular type of emulsion droplets as photoacoustic agents were evaluated in Intralipid®-India ink media, mimicking the optical scattering and absorbanceof various tissuetypes. From these measurements, it was observed that PDA/PFC droplets with bimodal size distributions can enhance the photoacoustic signal of blood-mimicking phantom by up to five folds in various tissue-mimicking phantoms with absorption coefficients from 0.1 to 1.0 cm-1. Furthermore, using the information from enhanced photoacoustic images at 750 nm, the ultimate imaging depth was explored for polydopamine-shelled, perfluorohexane (PDA/PFH) emulsion droplets by photon trajectory simulations in 3D using a Monte Carlo approach. Based on these simulations, maximal tissue imaging depths for PDA/PFH emulsion droplets range from 10 to 40 mm, depending on the tissue type. These results demonstrate for the first time that ultrasonically fabricated PDA/PFC emulsion droplets have great potential as photoacoustic imaging agents that can be complemented with other reported characteristics of PDA/PFC emulsion droplets for extended applications in theranostics and other imaging modalities.
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Affiliation(s)
| | - Ekaterina Salimova
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia; Monash Biomedical Imaging, Monash University, Clayton, VIC 3800, Australia
| | - Simon A Crawford
- Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Clayton, VIC 3800, Australia
| | - Boon Mian Teo
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
| | - Alexis I Bishop
- School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia.
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29
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Polapally R, Mansani M, Rajkumar K, Burgula S, Hameeda B, Alhazmi A, Bantun F, Almalki AH, Haque S, El Enshasy HA, Sayyed RZ. Melanin pigment of Streptomyces puniceus RHPR9 exhibits antibacterial, antioxidant and anticancer activities. PLoS One 2022; 17:e0266676. [PMID: 35468144 PMCID: PMC9037932 DOI: 10.1371/journal.pone.0266676] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/24/2022] [Indexed: 11/25/2022] Open
Abstract
The present study reveals the production of dark, extracellular melanin pigment (386 mg/L) on peptone yeast extract iron agar medium by Streptomyces puniceus RHPR9 using the gravimetric method. UV-Visible, Fourier Transform Infrared (FTIR), and Nuclear Magnetic Resonance (1H) (NMR) spectroscopy confirmed the presence of melanin. Extracted melanin showed antibacterial activity against human pathogens such as Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli except for Klebsiella pneumoniae. A potent free radical scavenging activity was observed at 100 μg/mL of melanin by the DPPH method with a concentration of 89.01±0.05% compared with ascorbic acid 96.16±0.01%. Antitumor activity of melanin was evaluated by MTT assay against HEK 293, HeLa, and SK-MEL-28 cell lines with IC50 values of 64.11±0.00, 14.43±0.02, and 13.31±0.01 μg/mL respectively. Melanin showed maximum anti-inflammatory activity with human red blood cells (hRBC) (78.63 ± 0.01%) and minimum hemolysis of 21.37±0.2%. The wound healing potential of the pigment was confirmed on HeLa cells, cell migration was calculated, and it was observed that cell migration efficiency decreased with an increase in the concentration of melanin. To our knowledge, this is the first evidence of melanin produced from S. puniceus RHPR9 that exhibited profound scavenging, anti-inflammatory and cytotoxic activities.
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Affiliation(s)
- Ravinder Polapally
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Manasa Mansani
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Karthik Rajkumar
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Sandeepta Burgula
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Bee Hameeda
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Alaa Alhazmi
- Medical Laboratory Technology Department, Jazan University, Jazan, Saudi Arabia
- SMIRES for Consultation in Specialized Medical Laboratories, Jazan University, Jazan, Saudi Arabia
| | - Farkad Bantun
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Atiah H. Almalki
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
- Addiction and Neuroscience Research Unit, College of Pharmacy, Taif University, Al-Hawiah, Taif, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
- Bursa Uludağ University Faculty of Medicine, Görükle Campus, Nilüfer, Bursa, Turkey
| | - Hesham Ali El Enshasy
- Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Johor, Malaysia
- City of Scientific Research and Technology Applications (SRTA), New Burg Al Arab, Alexandria, Egypt
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandal’s Arts, Science, and Commerce College, Shahada, India
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30
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Elsayis A, Hassan SWM, Ghanem KM, Khairy H. Optimization of melanin pigment production from the halotolerant black yeast Hortaea werneckii AS1 isolated from solar salter in Alexandria. BMC Microbiol 2022; 22:92. [PMID: 35395716 PMCID: PMC8991569 DOI: 10.1186/s12866-022-02505-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/28/2022] [Indexed: 12/14/2022] Open
Abstract
Background Melanins are one of the magnificent natural pigments synthesized by a wide range of microorganisms including different species of fungi and bacteria. Marine black yeasts appear to be potential prospects for the synthesis of natural melanin pigment. As a result, the goal of this research was to isolate a marine black yeast melanin-producing strain and improve the culturing conditions in order to maximize the yield of such a valuable pigment. Results Among five locally isolated black yeast strains, the only one that demonstrated a potent remarkable melanin pigment production was identified using ITS rDNA as Hortaea werneckii AS1. The extracted pigment’s physiochemical characterization and analytical investigation with Ultraviolet-Visible (UV) spectrophotometry, Fourier Transform-Infrared spectroscopy (FTIR), and Scanning Electron Microscope (SEM) confirmed its nature as a melanin pigment. The data obtained from the polynomial model’s maximum point suggested that CaCl2, 1.125 g/L; trace element, 0.25 ml/L; and a culture volume 225 mL/500 mL at their optimal values were the critical three elements impacting melanin production. In comparison with the baseline settings, the response surface methodology (RSM) optimization approach resulted in a 2.0 - fold improvement in melanin output. Conclusions A maximum melanin yield of 0.938 g/L proved the halotolerant H. werneckii AS1 potentiality as a source for natural melanin pigment synthesis ‘when compared to some relevant black yeast strains’ and hence, facilitating its incorporation in a variety of pharmaceutical and environmental applications. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02505-1.
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Affiliation(s)
- Asmaa Elsayis
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
| | - Sahar W M Hassan
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
| | - Khaled M Ghanem
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Heba Khairy
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt.
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31
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Panzella L, Benning K, Nesbeth DN, Setaro B, D'Errico G, Napolitano A, d'Ischia M. Identification of black sturgeon caviar pigment as eumelanin. Food Chem 2022; 373:131474. [PMID: 34731814 DOI: 10.1016/j.foodchem.2021.131474] [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: 05/19/2021] [Revised: 10/15/2021] [Accepted: 10/24/2021] [Indexed: 11/29/2022]
Abstract
Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of oxidative degradation mixtures revealed the formation of pyrrole-2,3,5-tricarboxylic acid (PTCA), a specific marker of eumelanin pigments, in yields compatible with a 6.5% w/w pigment content. EPR spectral features and parameters were in close agreement with those reported for a typical natural eumelanin such as Sepia melanin from squid ink. The identification for the first time of eumelanin in a fish roe is expected to provide a novel molecular basis for the valorization of black caviar and production wastes thereof in food chemistry and diet.
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Affiliation(s)
- Lucia Panzella
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy.
| | - Kenneth Benning
- Caviar Biotec, 563-565 Battersea Park Road, London SW11 3BL, United Kingdom
| | - Darren N Nesbeth
- Caviar Biotec, 563-565 Battersea Park Road, London SW11 3BL, United Kingdom; Department of Biochemical Engineering, University College London, Bernard Katz Building, London WC1H 6BT, United Kingdom
| | - Brunella Setaro
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - Marco d'Ischia
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
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32
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Chen X, Shuai D, Han Y, Luo D, Wang L, Chen B. Polyoxometalates as Potential Next‐Generation Metallodrugs in the melanogenesis inhibitor. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202100319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | | | - Li Wang
- Jimei University fisheries college Yindou Road 43 Jimei, Xiamen 361021 Xiamen CHINA
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33
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Zhang R, Zheng Y, Liu T, Tang N, Mao L, Lin L, Ye J, Xie L, Hu W, Wu W, Liao W, Yuan M. The marriage of sealant agent between structure transformable silk fibroin and traditional Chinese medicine for faster skin repair. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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34
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Surendirakumar K, Pandey RR, Muthukumar T, Sathiyaseelan A, Loushambam S, Seth A. Characterization and biological activities of melanin pigment from root endophytic fungus, Phoma sp. RDSE17. Arch Microbiol 2022; 204:171. [PMID: 35157131 DOI: 10.1007/s00203-022-02788-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 11/29/2022]
Abstract
Melanins are high molecular weight hydrophobic pigments which have gained popularity for their role in virulence against different pathogens. In the present study, we isolated and characterized the melanin pigment produced by a dark septate endophyte fungus Phoma sp. RDSE17, which was associated with the roots of an indigenous Oryza sativa cv. 'Chakhao amubi' in Manipur, Northeast India. The biological properties of purified melanin from the fungus were evaluated for their antioxidant, antimicrobial and anticancerous activities. The pigment was extracted from Phoma sp. by alkaline-acid hydrolysis method and confirmed as melanin through physico-chemical tests and spectral (UV, FTIR, and EPR) analysis. The analyses of the elemental composition indicated that the pigment possessed a low percentage of nitrogen (N) contents, and therefore, would not fall under DOPA class of melanin. Exposure of the fungus to melanin pathway inhibitors revealed a positive melanin inhibition by tricyclazole, but not by kojic acid. Thus, the melanin from Phoma sp. may be a member of the DHN family. Moreover, the purified melanin showed high DPPH (1, 1-Diphenyl-2-picrylhydrazyl) free radical-scavenging activity with an EC50 of 69 µg/mL and inhibited human lung cancer cell (A549 cells) proliferation at 80 µg/mL. The present study demonstrates that melanin from Phoma sp. RDSE17 could be employed as a potential biological (antioxidant) and antimicrobial agent for inhibiting the growth of humans and phytopathogens.
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Affiliation(s)
- Kannaiah Surendirakumar
- Department of Biotechnology, JJ College of Arts and Science (Autonomous), Tamil Nadu, Pudukkottai, 622 422, India. .,Department of Life Sciences, Manipur University, Canchipur, Imphal, 795 003, Manipur, India.
| | - Radha Raman Pandey
- Department of Life Sciences, Manipur University, Canchipur, Imphal, 795 003, Manipur, India
| | | | - Anbazhagan Sathiyaseelan
- Centre for Advanced Studies in Botany, University of Madras, Tamil Nadu, Chennai, 600 025, India
| | - Surbala Loushambam
- Department of Life Sciences, Manipur University, Canchipur, Imphal, 795 003, Manipur, India
| | - Amit Seth
- Department of Life Sciences, Manipur University, Canchipur, Imphal, 795 003, Manipur, India
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35
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Galeb HA, Lamantia A, Robson A, König K, Eichhorn J, Baldock SJ, Ashton MD, Baum JV, Mort RL, Robinson BJ, Schacher FH, Chechik V, Taylor AM, Hardy JG. The Polymerization of Homogentisic Acid in Vitro as a Model for Pyomelanin Formation. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hanaa A. Galeb
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
- Department of Chemistry Science and Arts College, Rabigh Campus King Abdulaziz University Jeddah 21577 Saudi Arabia
| | - Angelo Lamantia
- Department of Physics Lancaster University Lancaster LA1 4YW United Kingdom
| | - Alexander Robson
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Katja König
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Jonas Eichhorn
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Sara J. Baldock
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Mark D. Ashton
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - John V. Baum
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Richard L. Mort
- Division of Biomedical and Life Sciences Lancaster University Lancaster LA1 4YG United Kingdom
| | - Benjamin J. Robinson
- Department of Physics Lancaster University Lancaster LA1 4YW United Kingdom
- Materials Science Institute Lancaster University Lancaster LA1 4YB United Kingdom
| | - Felix H. Schacher
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Victor Chechik
- Department of Chemistry University of York Heslington, York YO10 5DD United Kingdom
| | - Adam M. Taylor
- Lancaster Medical School Lancaster University Lancaster LA1 4YW United Kingdom
| | - John G. Hardy
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
- Materials Science Institute Lancaster University Lancaster LA1 4YB United Kingdom
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36
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Chen XE, Mangindaan D, Chien HW. Green sustainable photothermal materials by spent coffee grounds. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Lin L, Zheng Q, Chen Q, Fang M, Lai Q, He X, Qin J, Lin ZJ, Lin R. Preparation of fluorescent organic nanoparticles via self-polymerization for tartrazine detection in food samples. NEW J CHEM 2022. [DOI: 10.1039/d1nj05176h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent polydopamine nanoparticles (PDA NPs) have been effectively synthesized by means of self-polymerization of dopamine under the strong alkaline condition of ethylenediamine at room temperature for 2.5 h.
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Affiliation(s)
- Liping Lin
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qiaoling Zheng
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qiushuang Chen
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Meng Fang
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qingjiao Lai
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xinghao He
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinying Qin
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zu-jin Lin
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Rongguang Lin
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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38
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Chen X, Shuai D, Jiang Z, Yang H, Luo D, Ni H, Wang L, Chen B. Study on the Regulation and Mechanism of the Vanadium Substituted Polyoxometalates of H 6[P 2Mo 18O 62] on Melanogenesis of Mouse Melanoma Cell B16. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21110528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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Cheap and green deep eutectic solvents with favorable physical properties for significantly improved near-infrared light detection. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Liu F, Liu X, Chen F, Fu Q. Mussel-inspired chemistry: A promising strategy for natural polysaccharides in biomedical applications. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101472] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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41
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Chen HY, Hsieh CW, Chen PC, Lin SP, Lin YF, Cheng KC. Development and Optimization of Djulis Sourdough Bread Fermented by Lactic Acid Bacteria for Antioxidant Capacity. Molecules 2021; 26:5658. [PMID: 34577129 PMCID: PMC8468284 DOI: 10.3390/molecules26185658] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
This study developed a nutritionally valuable product with bioactive activity that improves the quality of bread. Djulis (Chenopodium formosanum), a native plant of Taiwan, was fermented using 23 different lactic acid bacteria strains. Lactobacillus casei BCRC10697 was identified as the ideal strain for fermentation, as it lowered the pH value of samples to 4.6 and demonstrated proteolysis ability 1.88 times higher than controls after 24 h of fermentation. Response surface methodology was adopted to optimize the djulis fermentation conditions for trolox equivalent antioxidant capacity (TEAC). The optimal conditions were a temperature of 33.5 °C, fructose content of 7.7%, and dough yield of 332.8, which yielded a TEAC at 6.82 mmol/kg. A 63% increase in TEAC and 20% increase in DPPH were observed when compared with unfermented djulis. Subsequently, the fermented djulis was used in different proportions as a substitute for wheat flour to make bread. The total phenolic and flavonoid compounds were 4.23 mg GAE/g and 3.46 mg QE/g, marking respective increases of 18% and 40% when the djulis was added. Texture analysis revealed that adding djulis increased the hardness and chewiness of sourdough breads. It also extended their shelf life by approximately 2 days. Thus, adding djulis to sourdough can enhance the functionality of breads and may provide a potential basis for developing djulis-based functional food.
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Affiliation(s)
- Hung-Yueh Chen
- Institute of Food Science and Technology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan; (H.-Y.C.); (P.-C.C.)
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402, Taiwan;
- Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung 404, Taiwan
| | - Pin-Cheng Chen
- Institute of Food Science and Technology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan; (H.-Y.C.); (P.-C.C.)
| | - Shin-Pin Lin
- School of Food Safety, Taipei Medical University, Taipei 11031, Taiwan;
| | - Ya-Fen Lin
- Department of Agronomy, National Taiwan University, Taipei 10617, Taiwan
| | - Kuan-Chen Cheng
- Institute of Food Science and Technology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan; (H.-Y.C.); (P.-C.C.)
- Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung 404, Taiwan
- Institute of Biotechnology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
- Department of Optometry, Asia University, 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan
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42
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Zhou Y, Lin B, Li K, Zhao Y, Sun Z, He C, Jha RK. Preparation of Near-Infrared/Photoacoustic Dual-Mode Imaging and Photothermal/Chemo Synergistic Theranostic Nanoparticles and Their Imaging and Treating of Hepatic Carcinoma. Front Oncol 2021; 11:750807. [PMID: 34604095 PMCID: PMC8485585 DOI: 10.3389/fonc.2021.750807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/25/2021] [Indexed: 01/27/2023] Open
Abstract
At present, the clinical diagnosis of and treatment methods for hepatic carcinoma still fail to fully meet the needs of patients. The integrated theranostic system, in which functional materials are used to load different active molecules, created a new developmental direction for the combination treatment of hepatic carcinoma, realizing the synchronization of diagnosis and treatment. In this study, polydopamine (PDA), which has the functions of self-assembly, encapsulation, photothermal conversion, and photoacoustic interaction, was used as the carrier material. The IR780, a near-infrared fluorescence imaging (NIFI), photoacoustic imaging (PAI), and photothermal therapy (PTT) agent, and paclitaxel (PTX), a broad-spectrum chemotherapy drug, were selected to build the NIF/PA dual-mode imaging and PTT/chemo synergistic theranostic nanoparticles (DIST NPs). The DIST NPs have a 103.4 ± 13.3 nm particle size, a weak negative charge on the surface, good colloidal stability, slow and controlled drug release, and high photothermal conversion ability. The experiments results showed that the DIST NPs have a long circulation in vivo, high bioavailability, high biocompatibility, and low effective dose. DIST NPs showed an excellent NIFI/PAI dual-mode imaging and significant synergistic antitumor effect in hepatic carcinoma models. DIST NPs met the initial design requirements. A set of fast and low-cost preparation methods was established. This study provides an experimental basis for the development of new clinical theranostic methods for hepatic carcinoma.
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Affiliation(s)
- Yun Zhou
- College of Clinical Medicine, Xi'an Medical University, Xi’an, China
| | - Bixia Lin
- College of Pharmacy, Xi'an Medical University, Xi’an, China
| | - Kai Li
- College of Clinical Medicine, Xi'an Medical University, Xi’an, China
| | - Yufeng Zhao
- Department of Basic Medical Science, Xi’an Medical University, Xi’an, China
| | - Zhuo Sun
- Department of Basic Medical Science, Xi’an Medical University, Xi’an, China
| | - Chenchen He
- Department of Radiation Oncology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Rajiv Kumar Jha
- College of Clinical Medicine, Xi'an Medical University, Xi’an, China
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43
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Yi G, Ji B, Du J, Zhou J, Chen Z, Mao Y, Wei Y, Xia Z, Fu Q. Enhanced enantioseparation performance in cyclodextrin-electrokinetic chromatography using quinine modified polydopamine coated capillary column. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Functional perspective of black fungi (Auricularia auricula): Major bioactive components, health benefits and potential mechanisms. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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45
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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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46
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Du C, Wu X, He M, Zhang Y, Zhang R, Dong CM. Polymeric photothermal agents for cancer therapy: recent progress and clinical potential. J Mater Chem B 2021; 9:1478-1490. [PMID: 33427844 DOI: 10.1039/d0tb02659j] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past decades, near infrared light (NIR)-sensitive photothermal agents (PTAs) that can efficiently absorb light and generate heat have been investigated worldwide for cancer photothermal therapy (PTT) and the combination treatments, which have some peculiar advantages including spatiotemporal targeting, the ability-to-reverse multidrug resistance, the immunity-stimulating function, and the synergistic effect in combination treatments. In this review, we first focus on emerging melanin-like polymers and coordination polyphenol polymer-based PTAs that hold transition potential because of their facile synthesis and good biocompatibility/biodegradability. We briefly introduce polymeric PTAs for emerging NIR-II (1000-1700 nm) PTT in deep tumors to overcome shallow penetration depth and threshold irradiation intensity of NIR-I (700-900 nm). Then we discuss polymeric PTAs for combination PTT treatments with photodynamic therapy (PDT), ferroptosis therapy (ferrotherapy), and immunotherapy, which are intensively studied for achieving anticancer synergistic effects. Finally, we discuss those polymeric PTAs for reversing cancer multidrug resistance and for mild/low-temperature PTT (43 °C ≤ T < 50 °C) in contrast to conventional high-temperature PTT (>50 °C). The polymeric PTA-based PTT and the combination treatments are still being developed in the early stage and need much more effort before potential clinical transitions and applications.
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Affiliation(s)
- Chang Du
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China. and Joint Research Center for Precision Medicine, Shanghai Jiao Tong University, Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China.
| | - Xingjie Wu
- School of Pharmaceutical Science, Guizhou Medical University, Guizhou 550025, P. R. China
| | - Meng He
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Yongming Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China. and State Key Laboratory of Fluorinated Functional Membrane Materials, Shandong Huaxia Shenzhou New Material Co. Ltd, Zibo 256401, P. R. China
| | - Rong Zhang
- Joint Research Center for Precision Medicine, Shanghai Jiao Tong University, Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China. and Department of Obstetrics and Gynecology, Shanghai Fengxian Central Hospital, Southern Medical University, Shanghai 201499, P. R. China
| | - Chang-Ming Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China. and Joint Research Center for Precision Medicine, Shanghai Jiao Tong University, Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China.
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Liu D, Huang H, Zhao B, Guo W. Natural Melanin-Based Nanoparticles With Combined Chemo/Photothermal/Photodynamic Effect Induce Immunogenic Cell Death (ICD) on Tumor. Front Bioeng Biotechnol 2021; 9:635858. [PMID: 33681171 PMCID: PMC7935529 DOI: 10.3389/fbioe.2021.635858] [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: 11/30/2020] [Accepted: 01/28/2021] [Indexed: 12/24/2022] Open
Abstract
Melanin, as a natural product, has been used as an extraordinary ingredient for nanomedicine due to its great biocompatibility and light responsive property. In this study, polydopamine (PDA), an analog of melanin, was extracted from dopamine and encapsulated with doxorubicin (DOX). The as-prepared nanoparticles (NPs) with good stability, great biosafety and high near infrared (NIR) responsive property ameliorated the cell uptake of DOX in OS-RC-2/ADR cells, exhibited synergistic chemo/photothermal (PTT)/photodynamic (PDT) effects, induced the release of damage associated molecular patterns (DAMPs), and finally, led to immunogenic cell death (ICD). In general, it was suggested that PDA-DOX NPs with NIR irradiation could serve as a promising agent for tumor therapy.
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Affiliation(s)
- Ding Liu
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Huilin Huang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bingxia Zhao
- Guangzhou Key Laboratory of Tumor Immunology Research, School of Basic Medical Sciences, Cancer Research Institute, Southern Medical University, Guangzhou, China
| | - Weihong Guo
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Galeb HA, Wilkinson EL, Stowell AF, Lin H, Murphy ST, Martin‐Hirsch PL, Mort RL, Taylor AM, Hardy JG. Melanins as Sustainable Resources for Advanced Biotechnological Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000102. [PMID: 33552556 PMCID: PMC7857133 DOI: 10.1002/gch2.202000102] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/04/2020] [Indexed: 05/17/2023]
Abstract
Melanins are a class of biopolymers that are widespread in nature and have diverse origins, chemical compositions, and functions. Their chemical, electrical, optical, and paramagnetic properties offer opportunities for applications in materials science, particularly for medical and technical uses. This review focuses on the application of analytical techniques to study melanins in multidisciplinary contexts with a view to their use as sustainable resources for advanced biotechnological applications, and how these may facilitate the achievement of the United Nations Sustainable Development Goals.
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Affiliation(s)
- Hanaa A. Galeb
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Department of ChemistryScience and Arts CollegeRabigh CampusKing Abdulaziz UniversityJeddah21577Saudi Arabia
| | - Emma L. Wilkinson
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Alison F. Stowell
- Department of Organisation, Work and TechnologyLancaster University Management SchoolLancaster UniversityLancasterLA1 4YXUK
| | - Hungyen Lin
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
| | - Samuel T. Murphy
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
| | - Pierre L. Martin‐Hirsch
- Lancashire Teaching Hospitals NHS TrustRoyal Preston HospitalSharoe Green LanePrestonPR2 9HTUK
| | - Richard L. Mort
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Adam M. Taylor
- Lancaster Medical SchoolLancaster UniversityLancasterLA1 4YWUK
| | - John G. Hardy
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
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49
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Ashok G, Mohan U, Boominathan M, Ravichandiran V, Viswanathan C, Senthilkumar V. Natural Pigments from Filamentous Fungi: Production and Applications. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Zhou L, Du C, Zhang R, Dong C. Stimuli-responsive dual drugs-conjugated polydopamine nanoparticles for the combination photothermal-cocktail chemotherapy. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.02.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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