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Zhu Y, Li Q, Yu H, Liu S, Kong L. Shell Biosynthesis and Pigmentation as Revealed by the Expression of Tyrosinase and Tyrosinase-like Protein Genes in Pacific Oyster (Crassostrea gigas) with Different Shell Colors. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:777-789. [PMID: 34490547 DOI: 10.1007/s10126-021-10063-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
The widely recognized color polymorphisms of molluscan shell have been appreciated for hundreds of years by collectors and scientists, while molecular mechanisms underlying shell pigmentation are still poorly understood. Tyrosinase is a key rate-limiting enzyme for the biosynthesis of melanin. Here, we performed an extensive multi-omics data mining and identified two tyrosinase genes, including tyrosinase and tyrosinase-like protein 2 (Tyr and Typ-2 respectively), in the Pacific oyster Crassostrea gigas, and investigated the expression patterns of tyrosinase during adults and embryogenesis in black and white shell color C. gigas. Tissue expression analysis showed that two tyrosinase genes were both specifically expressed in the mantle, and the expression levels of Tyr and Typ-2 in the edge mantle were significantly higher than that in the central mantle. Besides, Tyr and Typ-2 genes were black shell-specific compared with white shell oysters. In situ hybridization showed that strong signals for Tyr were detected in the inner surface of the outer fold, whereas positive signals for Typ-2 were mainly localized in the outer surface of the outer fold. In the embryos and larvae, the high expression of Tyr mRNA was detected in eyed-larvae, while Typ-2 mRNA was mainly expressed at the trochophore and early D-veliger. Furthermore, the tyrosinase activity in the edge mantle was significantly higher than that in the central mantle. These findings indicated that Tyr gene may be involved in shell pigmentation, and Typ-2 is more likely to play critical roles not only in the formation of shell prismatic layer but also in shell pigmentation. In particular, Typ-2 gene was likely to involve in the initial non-calcified shell of trochophores. The work provides valuable information for the molecular mechanism study of shell formation and pigmentation in C. gigas.
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Affiliation(s)
- Yijing Zhu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
| | - Hong Yu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Shikai Liu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Lingfeng Kong
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
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Salehi B, Cruz-Martins N, Butnariu M, Sarac I, Bagiu IC, Ezzat SM, Wang J, Koay A, Sheridan H, Adetunji CO, Semwal P, Schoebitz M, Martorell M, Sharifi-Rad J. Hesperetin's health potential: moving from preclinical to clinical evidence and bioavailability issues, to upcoming strategies to overcome current limitations. Crit Rev Food Sci Nutr 2021; 62:4449-4464. [PMID: 33491467 DOI: 10.1080/10408398.2021.1875979] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Flavonoids are common in the plant kingdom and many of them have shown a wide spectrum of bioactive properties. Hesperetin (Hst), the aglycone form of hesperidin, is a great example, and is the most abundant flavonoid found in Citrus plants. This review aims to provide an overview on the in vitro, in vivo and clinical studies reporting the Hst pharmacological effects and to discuss the bioavailability-related issues. Preclinical studies have shown promising effects on cancer, cardiovascular diseases, carbohydrate dysregulation, bone health, and other pathologies. Clinical studies have supported the Hst promissory effects as cardioprotective and neuroprotective agent. However, further well-designed clinical trials are needed to address the other Hst effects observed in preclinical trials, as well as to a more in-depth understanding of its safety profile.
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Affiliation(s)
- Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Natália Cruz-Martins
- Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal.,Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Laboratory of Neuropsychophysiology, Faculty of Psychology and Education Sciences, University of Porto, Portugal
| | - Monica Butnariu
- Banat's University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara, Timisoara, Romania
| | - Ioan Sarac
- Banat's University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara, Timisoara, Romania
| | - Iulia-Cristina Bagiu
- Timisoara, Discipline of Microbiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Shahira M Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Jinfan Wang
- Trinity College Dublin. NatPro (Natural Products Research Centre), School of Pharmacy and Pharmaceutical Science, Dublin, Ireland
| | - Aaron Koay
- Trinity College Dublin. NatPro (Natural Products Research Centre), School of Pharmacy and Pharmaceutical Science, Dublin, Ireland
| | - Helen Sheridan
- Trinity College Dublin. NatPro (Natural Products Research Centre), School of Pharmacy and Pharmaceutical Science, Dublin, Ireland
| | - Charles Oluwaseun Adetunji
- Applied Microbiology, Biotechnology and Nanotechnology Laboratory, Department of Microbiology, Edo University Iyamho, Auchi, Edo State, Nigeria
| | - Prabhakar Semwal
- Department of Biotechnology, Graphic Era University, Dehradun, Uttarakhand, India.,Uttarakhand State Council for Science and Technology, Dehradun, Uttarakhand, India
| | - Mauricio Schoebitz
- Departamento de Suelos y Recursos Naturales, Facultad de Agronomía, Universidad de Concepción, Concepción, Chile
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, Concepción, Chile.,Unidad de Desarrollo Tecnológico, Universidad de Concepción UDT, Concepcion, Chile
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador
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Lin YJ, Chen AN, Yin XJ, Li C, Lin CC. Human Microfibrillar-Associated Protein 4 (MFAP4) Gene Promoter: A TATA-Less Promoter That Is Regulated by Retinol and Coenzyme Q10 in Human Fibroblast Cells. Int J Mol Sci 2020; 21:ijms21218392. [PMID: 33182307 PMCID: PMC7664931 DOI: 10.3390/ijms21218392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 12/31/2022] Open
Abstract
Elastic fibers are one of the major structural components of the extracellular matrix (ECM) in human connective tissues. Among these fibers, microfibrillar-associated protein 4 (MFAP4) is one of the most important microfibril-associated glycoproteins. MFAP4 has been found to bind with elastin microfibrils and interact directly with fibrillin-1, and then aid in elastic fiber formation. However, the regulations of the human MFAP4 gene are not so clear. Therefore, in this study, we firstly aimed to analyze and identify the promoter region of the human MFAP4 gene. The results indicate that the human MFAP4 promoter is a TATA-less promoter with tissue- and species-specific properties. Moreover, the promoter can be up-regulated by retinol and coenzyme Q10 (coQ10) in Detroit 551 cells.
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Affiliation(s)
- Ying-Ju Lin
- School of Chinese Medicine, China Medical University, Taichung 40447, Taiwan;
- Genetic Center, Proteomics Core Laboratory, Department of Medical Research, China Medical University Hospital, Taichung 40447, Taiwan
| | - An-Ni Chen
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan;
| | - Xi Jiang Yin
- Advanced Materials Technology Centre, Singapore Polytechnic, Singapore 139651, Singapore; (X.J.Y.); (C.L.)
| | - Chunxiang Li
- Advanced Materials Technology Centre, Singapore Polytechnic, Singapore 139651, Singapore; (X.J.Y.); (C.L.)
| | - Chih-Chien Lin
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan;
- Correspondence: ; Tel.: +886-4-26328001; Fax: +886-4-26311167
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Gong Y, Hu M, Xu S, Wang B, Wang C, Mu X, Xu P, Jiang Y. Comparative transcriptome analysis reveals expression signatures of albino Russian sturgeon, Acipenseriformes gueldenstaedtii. Mar Genomics 2019; 46:1-7. [PMID: 30852186 DOI: 10.1016/j.margen.2019.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/24/2019] [Accepted: 02/16/2019] [Indexed: 01/03/2023]
Abstract
Albinism is a genetically inherited condition that is caused by a series of genetic abnormalities leading to a reduction in melanin production. Russian sturgeon is one of the most valuable freshwater fish species worldwide, and albino individuals have been found in fish farms. Due to its complicated genome and scarce genome-wide genetic resources, the underlying molecular basis of albinism in Russian sturgeon is unknown. In the present study, we first generated transcriptome profile of Acipenser gueldenstaedtii using pooled tissues, which provided reliable reference sequences for future molecular genetic studies. A total of 369,441 contigs were assembled, corresponding to 32,965 unique genes. A comparative analysis of the transcripts from the skin of albino and wildtype individuals was conducted afterwards. A total of 785 unique genes were differentially expressed, including the upregulation of 385 genes and the downregulation of 400 genes in albino individuals. The expression pattern of 16 selected differentially expressed genes was validated using qRT-PCR. Additional annotation, GO enrichment analysis and gene pathway analysis indicated that the melanogenesis pathway may be interrupted in albinism. Eight potential causative genes that were highly likely to be responsible for sturgeon albinism were identified, including Dct, Tyrp1b, Slc45a2, Ctns, Pmela, Pmelb, Cd63, and Bloc1s3, which were found to be significantly down-regulated in albino Russian sturgeon. Moreover, a sliding window analysis of the ratio of nonsynonymous to synonymous nucleotide substitution rates (Ka/Ks) ratios indicated that seven out of the eight genes underwent positive selection during evolution. Our results provide a valuable basis for understanding the molecular mechanism of albinism in fish species and will facilitate future genetic selection and breeding of sturgeon with market-favored traits in aquaculture.
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Affiliation(s)
- Yiwen Gong
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture and Rural Affairs, CAFS Key Laboratory of Aquatic Genomics, Chinese Academy of Fishery Sciences, Beijing, China
| | - Mou Hu
- Hangzhou Qiandaohu Xunlong Sci-Tech Development Company Limited, Quzhou, China
| | - Shijian Xu
- Hangzhou Qiandaohu Xunlong Sci-Tech Development Company Limited, Quzhou, China
| | - Bin Wang
- Hangzhou Qiandaohu Xunlong Sci-Tech Development Company Limited, Quzhou, China
| | - Chunlin Wang
- Key Laboratory of Applied Marine Biotechnology (Ningbo University), Ministry of Education, Ningbo, China
| | - Xidong Mu
- Key Laboratory of Tropical & Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Peng Xu
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen University, Xiamen, China
| | - Yanliang Jiang
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture and Rural Affairs, CAFS Key Laboratory of Aquatic Genomics, Chinese Academy of Fishery Sciences, Beijing, China; Hangzhou Qiandaohu Xunlong Sci-Tech Development Company Limited, Quzhou, China; Key Laboratory of Applied Marine Biotechnology (Ningbo University), Ministry of Education, Ningbo, China.
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5
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Yu F, Pan Z, Qu B, Yu X, Xu K, Deng Y, Liang F. Identification of a tyrosinase gene and its functional analysis in melanin synthesis of Pteria penguin. Gene 2018; 656:1-8. [PMID: 29496552 DOI: 10.1016/j.gene.2018.02.060] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/10/2018] [Accepted: 02/23/2018] [Indexed: 11/25/2022]
Abstract
Tyrosinase is a key rate-limiting enzyme in melanin synthesis. In this study, a new tyrosinase gene (Tyr) was identified from Pteria penguin and its effect on melanin synthesis was deliberated by RNA interference (RNAi). The cDNA of PpTyr was 1728 bp long, containing a 5'untranslated region (UTR) of 11 bp, a 3'UTR of 295 bp, and an open reading fragment of 1422 bp encoding 473 amino acids. Amino acid alignment showed PpTyr had the highest (50%) identity to tyrosinase-like protein 1 from Pinctada fucata. Phylogenetic tree analysis classified PpTyr into α-subclass of type-3 copper protein. Tissue expression analysis indicated that PpTyr was highly expressed in mantle, a nacre formation related tissue. After PpTyr RNA interference, PpTyr mRNA was significantly inhibited by 71.0% (P < 0.05). For other melanin-related genes, PpCreb2 and PpPax3 expression showed no significant change, but PpBcl2 was obviously increased. By liquid chromatograph-tandem mass spectrometer (LC-MS/MS) analysis, the total content of PDCA (pyrrole-2, 3-dicarboxylic acid) and PTCA (pyrrole-2,3,5-tricarboxylic acid), as main markers for eumelanin, was sharply decreased by 66.6% after PpTyr RNAi (P < 0.05). The percentage of PDCA was also obviously decreased from 20.1% to 13.9%. This indicated that tyrosinase played a key role in melanin synthesis and color formation of P. penguin.
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Affiliation(s)
- Feifei Yu
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China
| | - Zhenni Pan
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China
| | - Bingliang Qu
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China.
| | - Xiangyong Yu
- Ocean College, South China Agriculture University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China
| | - Kaihang Xu
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China
| | - Yuewen Deng
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China
| | - Feilong Liang
- Fishery College, Guangdong Ocean University, 40 East Jiefang Road, Xiashan District, Zhanjiang 524025, China
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Abaci HE, Guo Z, Doucet Y, Jacków J, Christiano A. Next generation human skin constructs as advanced tools for drug development. Exp Biol Med (Maywood) 2017; 242:1657-1668. [PMID: 28592171 DOI: 10.1177/1535370217712690] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Many diseases, as well as side effects of drugs, manifest themselves through skin symptoms. Skin is a complex tissue that hosts various specialized cell types and performs many roles including physical barrier, immune and sensory functions. Therefore, modeling skin in vitro presents technical challenges for tissue engineering. Since the first attempts at engineering human epidermis in 1970s, there has been a growing interest in generating full-thickness skin constructs mimicking physiological functions by incorporating various skin components, such as vasculature and melanocytes for pigmentation. Development of biomimetic in vitro human skin models with these physiological functions provides a new tool for drug discovery, disease modeling, regenerative medicine and basic research for skin biology. This goal, however, has long been delayed by the limited availability of different cell types, the challenges in establishing co-culture conditions, and the ability to recapitulate the 3D anatomy of the skin. Recent breakthroughs in induced pluripotent stem cell (iPSC) technology and microfabrication techniques such as 3D-printing have allowed for building more reliable and complex in vitro skin models for pharmaceutical screening. In this review, we focus on the current developments and prevailing challenges in generating skin constructs with vasculature, skin appendages such as hair follicles, pigmentation, immune response, innervation, and hypodermis. Furthermore, we discuss the promising advances that iPSC technology offers in order to generate in vitro models of genetic skin diseases, such as epidermolysis bullosa and psoriasis. We also discuss how future integration of the next generation human skin constructs onto microfluidic platforms along with other tissues could revolutionize the early stages of drug development by creating reliable evaluation of patient-specific effects of pharmaceutical agents. Impact statement Skin is a complex tissue that hosts various specialized cell types and performs many roles including barrier, immune, and sensory functions. For human-relevant drug testing, there has been a growing interest in building more physiological skin constructs by incorporating different skin components, such as vasculature, appendages, pigment, innervation, and adipose tissue. This paper provides an overview of the strategies to build complex human skin constructs that can faithfully recapitulate human skin and thus can be used in drug development targeting skin diseases. In particular, we discuss recent developments and remaining challenges in incorporating various skin components, availability of iPSC-derived skin cell types and in vitro skin disease models. In addition, we provide insights on the future integration of these complex skin models with other organs on microfluidic platforms as well as potential readout technologies for high-throughput drug screening.
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Affiliation(s)
- H E Abaci
- 1 Department of Dermatology, Columbia University Medical Center, New York, NY 10032, USA
| | - Zongyou Guo
- 1 Department of Dermatology, Columbia University Medical Center, New York, NY 10032, USA
| | - Yanne Doucet
- 1 Department of Dermatology, Columbia University Medical Center, New York, NY 10032, USA
| | - Joanna Jacków
- 1 Department of Dermatology, Columbia University Medical Center, New York, NY 10032, USA
| | - Angela Christiano
- 1 Department of Dermatology, Columbia University Medical Center, New York, NY 10032, USA.,2 Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, USA
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Binding Sites in the EFG1 Promoter for Transcription Factors in a Proposed Regulatory Network: A Functional Analysis in the White and Opaque Phases of Candida albicans. G3-GENES GENOMES GENETICS 2016; 6:1725-37. [PMID: 27172219 PMCID: PMC4889668 DOI: 10.1534/g3.116.029785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In Candida albicans the transcription factor Efg1, which is differentially expressed in the white phase of the white-opaque transition, is essential for expression of the white phenotype. It is one of six transcription factors included in a proposed interactive transcription network regulating white-opaque switching and maintenance of the alternative phenotypes. Ten sites were identified in the EFG1 promoter that differentially bind one or more of the network transcription factors in the white and/or opaque phase. To explore the functionality of these binding sites in the differential expression of EFG1, we generated targeted deletions of each of the 10 binding sites, combinatorial deletions, and regional deletions using a Renillareniformis luciferase reporter system. Individually targeted deletion of only four of the 10 sites had minor effects consistent with differential expression of EFG1, and only in the opaque phase. Alternative explanations are considered.
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