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Takatani N, Maoka T, Sawabe T, Beppu F, Hosokawa M. Identification of a novel monocyclic carotenoid and prediction of its biosynthetic genes in Algoriphagus sp. oki45. Appl Microbiol Biotechnol 2024; 108:102. [PMID: 38212961 PMCID: PMC10784355 DOI: 10.1007/s00253-023-12995-2] [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: 09/13/2023] [Revised: 12/06/2023] [Accepted: 12/26/2023] [Indexed: 01/13/2024]
Abstract
Bacteria belonging to the genus Algoriphagus have been isolated from various sources, such as Antarctic sea ice, seawater, and sediment, and some strains are known to produce orange to red pigments. However, the pigment composition and biosynthetic genes have not been fully elucidated. A new red-pigmented Algoriphagus sp. strain, oki45, was isolated from the surface of seaweed collected from Senaga-Jima Island, Okinawa, Japan. Genome comparison revealed oki45's average nucleotide identity of less than 95% to its closely related species, Algoriphagus confluentis NBRC 111222 T and Algoriphagus taiwanensis JCM 19755 T. Comprehensive chemical analyses of oki45's pigments, including 1H and 13C nuclear magnetic resonance and circular dichroism spectroscopy, revealed that the pigments were mixtures of monocyclic carotenoids, (3S)-flexixanthin ((3S)-3,1'-dihydroxy-3',4'-didehydro-1',2'-dihydro-β,ψ-caroten-4-one) and (2R,3S)-2-hydroxyflexixanthin ((2R,3S)-2,3,1'-trihydroxy-3',4'-didehydro-1',2'-dihydro-β,ψ-caroten-4-one); in particular, the latter compound was new and not previously reported. Both monocyclic carotenoids were also found in A. confluentis NBRC 111222 T and A. taiwanensis JCM 19755 T. Further genome comparisons of carotenoid biosynthetic genes revealed the presence of eight genes (crtE, crtB, crtI, cruF, crtD, crtYcd, crtW, and crtZ) for flexixanthin biosynthesis. In addition, a crtG homolog gene encoding 2,2'-β-hydroxylase was found in the genome of the strains oki45, A. confluentis NBRC 111222 T, and A. taiwanensis JCM 19755 T, suggesting that the gene is involved in 2-hydroxyflexixanthin synthesis via 2-hydroxylation of flexixanthin. These findings expand our knowledge of monocyclic carotenoid biosynthesis in Algoriphagus bacteria. KEY POINTS: • Algoriphagus sp. strain oki45 was isolated from seaweed collected in Okinawa, Japan. • A novel monocyclic carotenoid 2-hydroxyflexixanthin was identified from strain oki45. • Nine genes for 2-hydroxyflexixanthin biosynthesis were found in strain oki45 genome.
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Affiliation(s)
- Naoki Takatani
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan
| | - Takashi Maoka
- Research Institute for Production Development, 15 Shimogamo-Morimoto-Cho, Sakyo-Ku, Kyoto, 606-0805, Japan
| | - Tomoo Sawabe
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan
| | - Fumiaki Beppu
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan
| | - Masashi Hosokawa
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan.
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2
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Susanty M, Mursalim MKN, Hertadi R, Purwarianti A, LE Rajab T. Leveraging protein language model embeddings and logistic regression for efficient and accurate in-silico acidophilic proteins classification. Comput Biol Chem 2024; 112:108163. [PMID: 39098138 DOI: 10.1016/j.compbiolchem.2024.108163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 07/02/2024] [Accepted: 07/24/2024] [Indexed: 08/06/2024]
Abstract
The increasing demand for eco-friendly technologies in biotechnology necessitates effective and sustainable catalysts. Acidophilic proteins, functioning optimally in highly acidic environments, hold immense promise for various applications, including food production, biofuels, and bioremediation. However, limited knowledge about these proteins hinders their exploration. This study addresses this gap by employing in silico methods utilizing computational tools and machine learning. We propose a novel approach to predict acidophilic proteins using protein language models (PLMs), accelerating discovery without extensive lab work. Our investigation highlights the potential of PLMs in understanding and harnessing acidophilic proteins for scientific and industrial advancements. We introduce the ACE model, which combines a simple Logistic Regression model with embeddings derived from protein sequences processed by the ProtT5 PLM. This model achieves high performance on an independent test set, with accuracy (0.91), F1-score (0.93), and Matthew's correlation coefficient (0.76). To our knowledge, this is the first application of pre-trained PLM embeddings for acidophilic protein classification. The ACE model serves as a powerful tool for exploring protein acidophilicity, paving the way for future advancements in protein design and engineering.
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Affiliation(s)
- Meredita Susanty
- Institut Teknologi Bandung School of Electrical Engineering and Informatics, Jl. Ganesa 10, Bandung, Jawa Barat, Indonesia; Universitas Pertamina, School of Computer Science, Jl Teuku Nyak Arief Jakarta Selatan DKI, Jakarta, Indonesia
| | - Muhammad Khaerul Naim Mursalim
- Institut Teknologi Bandung School of Electrical Engineering and Informatics, Jl. Ganesa 10, Bandung, Jawa Barat, Indonesia; Universitas UniversalKompleks Maha Vihara Duta Maitreya Bukit Beruntung, Sei Panas Batam, Kepulauan, Riau 29456, Indonesia
| | - Rukman Hertadi
- Institut Teknologi Bandung Faculty of Math and Natural Sciences, Jl. Ganesa 10, Bandung, Jawa Barat, Indonesia
| | - Ayu Purwarianti
- Institut Teknologi Bandung School of Electrical Engineering and Informatics, Jl. Ganesa 10, Bandung, Jawa Barat, Indonesia; Center for Artificial Intelligence (U-CoE AI-VLB), Institut Teknologi Bandung, Bandung, Indonesia
| | - Tati LE Rajab
- Institut Teknologi Bandung School of Electrical Engineering and Informatics, Jl. Ganesa 10, Bandung, Jawa Barat, Indonesia.
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3
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Khan RH, Salamat N, Baig AQ, Shaikh ZA, Yousef A. Graph-based analysis of DNA sequence comparison in closed cotton species: A generalized method to unveil genetic connections. PLoS One 2024; 19:e0306608. [PMID: 39288143 DOI: 10.1371/journal.pone.0306608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 06/21/2024] [Indexed: 09/19/2024] Open
Abstract
Graph theory provides a systematic method for modeling and analysing complicated biological data as an effective bioinformatics tool. Based on current trends, the number of DNA sequences in the DNA database is growing quickly. To determine the origin of a species and identify homologous sequences, it is crucial to detect similarities in DNA sequences. Alignment-free techniques are required for accurate measures of sequence similarity, which has been one of the main issues facing computational biologists. The current study provides a mathematical technique for comparing DNA sequences that are constructed in graph theory. The sequences of each DNA were divided into pairs of nucleotides, from which weighted loop digraphs and corresponding weighted vectors were computed. To check the sequence similarity, distance measures like Cosine, Correlation, and Jaccard were employed. To verify the method, DNA segments from the genomes of ten species of cotton were tested. Furthermore, to evaluate the efficacy of the proposed methodology, a K-means clustering method was performed. This study proposes a proof-of-model that utilises a distance matrix approach that promises impressive outcomes with future optimisations to be made to the suggested solution to get the hundred percent accurate result. In the realm of bioinformatics, this paper highlights the use of graph theory as an effective tool for biological data study and sequence comparison. It's expected that further optimization in the proposed solution can bring remarkable results, as this paper presents a proof-of-concept implementation for a given set of data using the proposed distance matrix technique.
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Affiliation(s)
- Riaz Hussain Khan
- Institute of Mathematics, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Punjab, Pakistan
| | - Nadeem Salamat
- Institute of Mathematics, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Punjab, Pakistan
| | - A Q Baig
- Deportment of Mathematics and Statistics, Institute of Southern Punjab, Multan, Punjab, Pakistan
- School of New Energy and Intelligent Networked Automobiles, University of Sanya, Sanya, China
| | - Zaffar Ahmed Shaikh
- Department of Computer Science and Information Technology, Benazir Bhutto Shaheed University Lyari, Karachi, Pakistan
- School of Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Amr Yousef
- Electrical Engineering Department, College of Engineering, University of Business and Technology, Jeddah, Saudi Arabia
- Engineering Mathematics Department, Alexandria University, Alexandria, Egypt
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4
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Yang B, Zhang M, Shi Y, Zheng BQ, Shi C, Lu D, Yang ZZ, Dong YM, Zhu L, Ma X, Zhang J, He J, Zhang Y, Hu K, Lin H, Liao JY, Yin D. PerturbDB for unraveling gene functions and regulatory networks. Nucleic Acids Res 2024:gkae777. [PMID: 39265120 DOI: 10.1093/nar/gkae777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 07/26/2024] [Accepted: 09/05/2024] [Indexed: 09/14/2024] Open
Abstract
Perturb-Seq combines CRISPR (clustered regularly interspaced short palindromic repeats)-based genetic screens with single-cell RNA sequencing readouts for high-content phenotypic screens. Despite the rapid accumulation of Perturb-Seq datasets, there remains a lack of a user-friendly platform for their efficient reuse. Here, we developed PerturbDB (http://research.gzsys.org.cn/perturbdb), a platform to help users unveil gene functions using Perturb-Seq datasets. PerturbDB hosts 66 Perturb-Seq datasets, which encompass 4 518 521 single-cell transcriptomes derived from the knockdown of 10 194 genes across 19 different cell lines. All datasets were uniformly processed using the Mixscape algorithm. Genes were clustered by their perturbed transcriptomic phenotypes derived from Perturb-Seq data, resulting in 421 gene clusters, 157 of which were stable across different cellular contexts. Through integrating chemically perturbed transcriptomes with Perturb-Seq data, we identified 552 potential inhibitors targeting 1409 genes, including an mammalian target of rapamycin (mTOR) signaling inhibitor, retinol, which was experimentally verified. Moreover, we developed a 'Cancer' module to facilitate the understanding of the regulatory role of genes in cancer using Perturb-Seq data. An interactive web interface has also been developed, enabling users to visualize, analyze and download all the comprehensive datasets available in PerturbDB. PerturbDB will greatly drive gene functional studies and enhance our understanding of the regulatory roles of genes in diseases such as cancer.
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Affiliation(s)
- Bing Yang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Man Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Yanmei Shi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Bing-Qi Zheng
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Chuanping Shi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Daning Lu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Zhi-Zhi Yang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Yi-Ming Dong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Liwen Zhu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Xingyu Ma
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Jingyuan Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Jiehua He
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Yin Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Kaishun Hu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Haoming Lin
- HBP Surgery Department, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
| | - Jian-You Liao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
- Center for Precision Medicine, Shenshan Central Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 1 Heng Er Road, Dongyong Town, Shanwei, Guangdong, 516621, China
| | - Dong Yin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China
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5
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Dang H, Zhao W, Mattes TE. Metagenomes, metagenome-assembled genomes, and metatranscriptomes from a chlorinated ethene-dechlorinating culture amended with biochar pyrolyzed at different temperatures. Microbiol Resour Announc 2024; 13:e0010424. [PMID: 39109829 PMCID: PMC11385459 DOI: 10.1128/mra.00104-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 07/05/2024] [Indexed: 09/11/2024] Open
Abstract
We investigated the effects of biochar and pyrolysis temperature on a chlorinated ethene-dechlorinating anaerobic consortium. Sequencing of nucleic acids from suspended and biochar-attached cells yielded 9 metagenomes, 122 metagenome-assembled genomes, and 18 metatranscriptomes that provide insights into the structure, function, activity, and interactions of the dehalogenating consortium with biochar.
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Affiliation(s)
- Hongyu Dang
- Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Weilun Zhao
- Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Timothy E Mattes
- Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa, USA
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Grafakou A, Mosterd C, Beck MH, Kelleher P, McDonnell B, de Waal PP, van Rijswijck IMH, van Peij NNME, Cambillau C, Mahony J, van Sinderen D. Discovery of antiphage systems in the lactococcal plasmidome. Nucleic Acids Res 2024; 52:9760-9776. [PMID: 39119896 PMCID: PMC11381338 DOI: 10.1093/nar/gkae671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 08/10/2024] Open
Abstract
Until the late 2000s, lactococci substantially contributed to the discovery of various plasmid-borne phage defence systems, rendering these bacteria an excellent antiphage discovery resource. Recently, there has been a resurgence of interest in identifying novel antiphage systems in lactic acid bacteria owing to recent reports of so-called 'defence islands' in diverse bacterial genera. Here, 321 plasmid sequences from 53 lactococcal strains were scrutinized for the presence of antiphage systems. Systematic evaluation of 198 candidates facilitated the discovery of seven not previously described antiphage systems, as well as five systems, of which homologues had been described in other bacteria. All described systems confer resistance against the most prevalent lactococcal phages, and act post phage DNA injection, while all except one behave like abortive infection systems. Structure and domain predictions provided insights into their mechanism of action and allow grouping of several genetically distinct systems. Although rare within our plasmid collection, homologues of the seven novel systems appear to be widespread among bacteria. This study highlights plasmids as a rich repository of as yet undiscovered antiphage systems.
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Affiliation(s)
- Andriana Grafakou
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Cas Mosterd
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Matthias H Beck
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Philip Kelleher
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Brian McDonnell
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Paul P de Waal
- dsm-firmenich, Taste, Texture & Health, Center for Food Innovation, Delft 2613 AX, The Netherlands
| | - Irma M H van Rijswijck
- dsm-firmenich, Taste, Texture & Health, Center for Food Innovation, Delft 2613 AX, The Netherlands
| | - Noël N M E van Peij
- dsm-firmenich, Taste, Texture & Health, Center for Food Innovation, Delft 2613 AX, The Netherlands
| | - Christian Cambillau
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
- Laboratoire d'Ingénierie des Systèmes Macromoléculaires (LISM), Institut de Microbiologie, Bioénergies et Biotechnologie (IMM), Aix-Marseille Université - CNRS, UMR 7255 Marseille, France
| | - Jennifer Mahony
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Douwe van Sinderen
- School of Microbiology & APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
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Veseli I, DeMers MA, Cooper ZS, Schechter MS, Miller S, Weber L, Smith CB, Rodriguez LT, Schroer WF, McIlvin MR, Lopez PZ, Saito M, Dyhrman S, Eren AM, Moran MA, Braakman R. Digital Microbe: a genome-informed data integration framework for team science on emerging model organisms. Sci Data 2024; 11:967. [PMID: 39232008 PMCID: PMC11374999 DOI: 10.1038/s41597-024-03778-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 08/13/2024] [Indexed: 09/06/2024] Open
Abstract
The remarkable pace of genomic data generation is rapidly transforming our understanding of life at the micron scale. Yet this data stream also creates challenges for team science. A single microbe can have multiple versions of genome architecture, functional gene annotations, and gene identifiers; additionally, the lack of mechanisms for collating and preserving advances in this knowledge raises barriers to community coalescence around shared datasets. "Digital Microbes" are frameworks for interoperable and reproducible collaborative science through open source, community-curated data packages built on a (pan)genomic foundation. Housed within an integrative software environment, Digital Microbes ensure real-time alignment of research efforts for collaborative teams and facilitate novel scientific insights as new layers of data are added. Here we describe two Digital Microbes: 1) the heterotrophic marine bacterium Ruegeria pomeroyi DSS-3 with > 100 transcriptomic datasets from lab and field studies, and 2) the pangenome of the cosmopolitan marine heterotroph Alteromonas containing 339 genomes. Examples demonstrate how an integrated framework collating public (pan)genome-informed data can generate novel and reproducible findings.
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Affiliation(s)
- Iva Veseli
- Helmholtz Institute for Functional Marine Biodiversity, 26129, Oldenburg, Germany
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
| | - Michelle A DeMers
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Zachary S Cooper
- Department of Marine Sciences, University of Georgia, Athens, GA, 30602, USA
| | - Matthew S Schechter
- Committee on Microbiology, The University of Chicago, Chicago, IL, 60637, USA
| | - Samuel Miller
- Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA, 02543, USA
| | - Laura Weber
- Woods Hole Oceanographic Institution, Falmouth, MA, 02543, USA
| | - Christa B Smith
- Department of Marine Sciences, University of Georgia, Athens, GA, 30602, USA
| | - Lidimarie T Rodriguez
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, 32611-0180, USA
| | - William F Schroer
- Department of Marine Sciences, University of Georgia, Athens, GA, 30602, USA
| | | | - Paloma Z Lopez
- Woods Hole Oceanographic Institution, Falmouth, MA, 02543, USA
| | - Makoto Saito
- Woods Hole Oceanographic Institution, Falmouth, MA, 02543, USA
| | - Sonya Dyhrman
- Lamont-Doherty Earth Observatory, and the Department of Earth and Environmental Sciences, Columbia University, New York, NY, 10032, USA
| | - A Murat Eren
- Helmholtz Institute for Functional Marine Biodiversity, 26129, Oldenburg, Germany.
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany.
- Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA, 02543, USA.
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany.
- Marine 'Omics Bridging Group, Max Planck Institute for Marine Microbiology, 28359, Bremen, Germany.
| | - Mary Ann Moran
- Department of Marine Sciences, University of Georgia, Athens, GA, 30602, USA.
| | - Rogier Braakman
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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Kiepas AB, Hoskisson PA, Pritchard L. 16S rRNA phylogeny and clustering is not a reliable proxy for genome-based taxonomy in Streptomyces. Microb Genom 2024; 10. [PMID: 39254673 PMCID: PMC11385388 DOI: 10.1099/mgen.0.001287] [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] [Indexed: 09/11/2024] Open
Abstract
Streptomyces is among the most extensively studied genera of bacteria but its complex taxonomy remains contested and is suspected to contain significant species-level misclassification. Resolving the classification of Streptomyces would benefit many areas of applied microbiology that rely on an accurate ground truth for grouping of related organisms, including comparative genomics-based searches for novel antimicrobials. We survey taxonomic conflicts between 16S rRNA and whole genome-based Streptomyces classifications using 2276 publicly available Streptomyces genome assemblies and 48 981 publicly available full-length 16S rRNA Streptomyces sequences from silva, Greengenes, Ribosomal Database Project (RDP), and NCBI (National Centre for Biotechnology Information) databases. We construct a full-length 16S gene tree for 14 239 distinct Streptomyces sequences that resolves three major lineages of Streptomyces, but whose topology is not consistent with existing taxonomic assignments. We use these sequence data to delineate 16S and whole genome landscapes for Streptomyces, demonstrating that 16S and whole-genome classifications are frequently in disagreement, and that 16S zero-radius Operational Taxonomic Units (zOTUs) are often inconsistent with Average Nucleotide Identity (ANI)-based taxonomy. Our results strongly imply that 16S rRNA sequence data does not map to taxonomy sufficiently well to delineate Streptomyces species routinely. We propose that alternative marker sequences should be adopted by the community for classification and metabarcoding. Insofar as Streptomyces taxonomy has been determined or supported by 16S sequence data and may in parts be in error, we also propose that reclassification of the genus by alternative approaches may benefit the Streptomyces community.
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Affiliation(s)
- Angelika B Kiepas
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Paul A Hoskisson
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Leighton Pritchard
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
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9
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Saarenpää S, Shalev O, Ashkenazy H, Carlos V, Lundberg DS, Weigel D, Giacomello S. Spatial metatranscriptomics resolves host-bacteria-fungi interactomes. Nat Biotechnol 2024; 42:1384-1393. [PMID: 37985875 PMCID: PMC11392817 DOI: 10.1038/s41587-023-01979-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/06/2023] [Indexed: 11/22/2023]
Abstract
The interactions of microorganisms among themselves and with their multicellular host take place at the microscale, forming complex networks and spatial patterns. Existing technology does not allow the simultaneous investigation of spatial interactions between a host and the multitude of its colonizing microorganisms, which limits our understanding of host-microorganism interactions within a plant or animal tissue. Here we present spatial metatranscriptomics (SmT), a sequencing-based approach that leverages 16S/18S/ITS/poly-d(T) multimodal arrays for simultaneous host transcriptome- and microbiome-wide characterization of tissues at 55-µm resolution. We showcase SmT in outdoor-grown Arabidopsis thaliana leaves as a model system, and find tissue-scale bacterial and fungal hotspots. By network analysis, we study inter- and intrakingdom spatial interactions among microorganisms, as well as the host response to microbial hotspots. SmT provides an approach for answering fundamental questions on host-microbiome interplay.
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Affiliation(s)
- Sami Saarenpää
- SciLifeLab, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Or Shalev
- Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Systems Biology of Microbial Communities, University of Tübingen, Tübingen, Germany
| | - Haim Ashkenazy
- Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Vanessa Carlos
- Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Cluster of Excellence Physics of Life, TU Dresden, Dresden, Germany
| | - Derek Severi Lundberg
- Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Detlef Weigel
- Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen, Germany
| | - Stefania Giacomello
- SciLifeLab, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden.
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10
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Kosiorek K, Grzesiak J, Gawor J, Sałańska A, Aleksandrzak-Piekarczyk T. Polar-Region Soils as Novel Reservoir of Lactic Acid Bacteria from the Genus Carnobacterium. Int J Mol Sci 2024; 25:9444. [PMID: 39273391 PMCID: PMC11395011 DOI: 10.3390/ijms25179444] [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: 07/10/2024] [Revised: 08/26/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
Polar habitats offer excellent sites to isolate unique bacterial strains due to their diverse physical, geochemical, and biological factors. We hypothesize that the unique environmental conditions of polar regions select for distinct strains of lactic acid bacteria (LAB) with novel biochemical properties. In this study, we characterized ten strains of psychrotrophic LAB isolated from hitherto poorly described sources-High Arctic and maritime Antarctic soils and soil-like materials, including ornithogenic soils, cryoconites, elephant seal colonies, and postglacial moraines. We evaluated the physiological and biochemical properties of the isolates. Based on 16S rRNA and housekeeping genes, the four LAB strains were assigned to three Carnobacterium species: C. alterfunditum, C. maltaromaticum, and C. jeotgali. The remaining strains may represent three new species of the Carnobacterium genus. All isolates were neutrophilic and halophilic psychrotrophs capable of fermenting various carbohydrates, organic acids, and alcohols. The identified metabolic properties of the isolated Carnobacterium strains suggest possible syntrophic interactions with other microorganisms in polar habitats. Some showed antimicrobial activity against food pathogens such as Listeria monocytogenes and human pathogens like Staphylococcus spp. Several isolates exhibited unique metabolic traits with potential biotechnological applications that could be more effectively exploited under less stringent technological conditions compared to thermophilic LAB strains, such as lower temperatures and reduced nutrient concentrations. Analysis of extrachromosomal genetic elements revealed 13 plasmids ranging from 4.5 to 79.5 kb in five isolates, featuring unique genetic structures and high levels of previously uncharacterized genes. This work is the first comprehensive study of the biochemical properties of both known and new Carnobacterium species and enhances our understanding of bacterial communities in harsh and highly selective polar soil ecosystems.
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Affiliation(s)
- Katarzyna Kosiorek
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Jakub Grzesiak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Jan Gawor
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Agnieszka Sałańska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland
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11
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Mendoza-Maya E, Giles-Pérez GI, Vargas-Hernández JJ, Sáenz-Romero C, Martínez-Trujillo M, de Los Angeles Beltrán-Nambo M, Hernández-Díaz JC, Prieto-Ruíz JÁ, Jaramillo-Correa JP, Wehenkel C. Evolutionary drivers of reproductive fitness in two endangered forest trees. THE NEW PHYTOLOGIST 2024. [PMID: 39187985 DOI: 10.1111/nph.20073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 08/06/2024] [Indexed: 08/28/2024]
Abstract
Population genetics theory predicts a relationship between fitness, genetic diversity (H0) and effective population size (Ne), which is often tested through heterozygosity-fitness correlations (HFCs). We tested whether population and individual fertility and heterozygosity are correlated in two endangered Mexican spruces (Picea martinezii and Picea mexicana) by combining genomic, demographic and reproductive data (seed development and germination traits). For both species, there was a positive correlation between population size and seed development traits, but not germination rate. Individual genome-wide heterozygosity and seed traits were only correlated in P. martinezii (general-effects HFC), and none of the candidate single nucleotide polymorphisms (SNPs) associated with individual fertility showed heterozygote advantage in any species (no local-effects HFC). We observed a single and recent (c. 30 thousand years ago (ka)) population decline for P. martinezii; the collapse of P. mexicana occurred in two phases separated by a long period of stability (c. 800 ka). Recruitment always contributed more to total population census than adult trees in P. mexicana, while this was only the case in the largest populations of P. martinezii. Equating fitness to either H0 or Ne, as traditionally proposed in conservation biology, might not always be adequate, as species-specific evolutionary factors can decouple the expected correlation between these parameters.
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Affiliation(s)
- Eduardo Mendoza-Maya
- Programa Institucional de Doctorado en Ciencias Agropecuarias y Forestales, Universidad Juárez del Estado de Durango, 34000, Durango, Mexico
| | - Gustavo Ibrahim Giles-Pérez
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - J Jesús Vargas-Hernández
- Postgrado en Ciencias Forestales, Colegio de Postgraduados, Montecillo, Texcoco, 56264, Estado de México, Mexico
| | - Cuauhtémoc Sáenz-Romero
- Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, 58330, Michoacán, Mexico
| | - Miguel Martínez-Trujillo
- Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, 58030, Michoacán, Mexico
| | | | - José Ciro Hernández-Díaz
- Instituto de Silvicultura e Industria de la Madera, Universidad Juárez del Estado de Durango, 34120, Durango, Mexico
| | - José Ángel Prieto-Ruíz
- Facultad de Ciencias Forestales y Ambientales, Universidad Juárez del Estado de Durango, 34120, Durango, Mexico
| | - Juan P Jaramillo-Correa
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - Christian Wehenkel
- Instituto de Silvicultura e Industria de la Madera, Universidad Juárez del Estado de Durango, 34120, Durango, Mexico
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12
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Caetano da Silva C, Macias Trevino C, Mitchell J, Murali H, Tsimbal C, Dalessandro E, Carroll SH, Kochhar S, Curtis SW, Cheng CHE, Wang F, Kutschera E, Carstens RP, Xing Y, Wang K, Leslie EJ, Liao EC. Functional analysis of ESRP1/2 gene variants and CTNND1 isoforms in orofacial cleft pathogenesis. Commun Biol 2024; 7:1040. [PMID: 39179789 PMCID: PMC11344038 DOI: 10.1038/s42003-024-06715-3] [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: 02/15/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024] Open
Abstract
Orofacial cleft (OFC) is a common human congenital anomaly. Epithelial-specific RNA splicing regulators ESRP1 and ESRP2 regulate craniofacial morphogenesis and their disruption result in OFC in zebrafish, mouse and humans. Using esrp1/2 mutant zebrafish and murine Py2T cell line models, we functionally tested the pathogenicity of human ESRP1/2 gene variants. We found that many variants predicted by in silico methods to be pathogenic were functionally benign. Esrp1 also regulates the alternative splicing of Ctnnd1 and these genes are co-expressed in the embryonic and oral epithelium. In fact, over-expression of ctnnd1 is sufficient to rescue morphogenesis of epithelial-derived structures in esrp1/2 zebrafish mutants. Additionally, we identified 13 CTNND1 variants from genome sequencing of OFC cohorts, confirming CTNND1 as a key gene in human OFC. This work highlights the importance of functional assessment of human gene variants and demonstrates the critical requirement of Esrp-Ctnnd1 acting in the embryonic epithelium to regulate palatogenesis.
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Affiliation(s)
- Caroline Caetano da Silva
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | | | - Hemma Murali
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Casey Tsimbal
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Shriners Hospital for Children, Tampa, FL, USA
| | - Eileen Dalessandro
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Shannon H Carroll
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Shriners Hospital for Children, Tampa, FL, USA
| | - Simren Kochhar
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Sarah W Curtis
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Ching Hsun Eric Cheng
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Feng Wang
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Eric Kutschera
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Russ P Carstens
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Yi Xing
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kai Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Elizabeth J Leslie
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Eric C Liao
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Harvard Medical School, Boston, MA, USA.
- Shriners Hospital for Children, Tampa, FL, USA.
- Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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13
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Park I, Choi M, Kim J, Jang S, Kim D, Kim J, Choe Y, Geum D, Yu SW, Choi JW, Moon C, Choe HK, Son GH, Kim K. Role of the circadian nuclear receptor REV-ERBα in dorsal raphe serotonin synthesis in mood regulation. Commun Biol 2024; 7:998. [PMID: 39147805 PMCID: PMC11327353 DOI: 10.1038/s42003-024-06647-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 07/29/2024] [Indexed: 08/17/2024] Open
Abstract
Affective disorders are frequently associated with disrupted circadian rhythms. The existence of rhythmic secretion of central serotonin (5-hydroxytryptamine, 5-HT) pattern has been reported; however, the functional mechanism underlying the circadian control of 5-HTergic mood regulation remains largely unknown. Here, we investigate the role of the circadian nuclear receptor REV-ERBα in regulating tryptophan hydroxylase 2 (Tph2), the rate-limiting enzyme of 5-HT synthesis. We demonstrate that the REV-ERBα expressed in dorsal raphe (DR) 5-HTergic neurons functionally competes with PET-1-a nuclear activator crucial for 5-HTergic neuron development. In mice, genetic ablation of DR 5-HTergic REV-ERBα increases Tph2 expression, leading to elevated DR 5-HT levels and reduced depression-like behaviors at dusk. Further, pharmacological manipulation of the mice DR REV-ERBα activity increases DR 5-HT levels and affects despair-related behaviors. Our findings provide valuable insights into the molecular and cellular link between the circadian rhythm and the mood-controlling DR 5-HTergic systems.
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Affiliation(s)
- Inah Park
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Mijung Choi
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Jeongah Kim
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
| | - Sangwon Jang
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Doyeon Kim
- Program in Neurosciences & Mental Health, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
| | - Jihoon Kim
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Youngshik Choe
- Korea Brain Research Institute (KBRI), Daegu, 41062, Republic of Korea
| | - Dongho Geum
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
| | - Seong-Woon Yu
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Ji-Woong Choi
- Department of Electrical Engineering and Computer Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Cheil Moon
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Han Kyoung Choe
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Gi Hoon Son
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
- Department of Legal Medicine, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
| | - Kyungjin Kim
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.
- Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.
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14
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Pan P, Chen W, Wu X, Li C, Gao Y, Qin D. Active Targets and Potential Mechanisms of Erhuang Quzhi Formula in Treating NAFLD: Network Analysis and Experimental Assessment. Cell Biochem Biophys 2024:10.1007/s12013-024-01413-7. [PMID: 39120856 DOI: 10.1007/s12013-024-01413-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2024] [Indexed: 08/10/2024]
Abstract
The purpose of this research was to investigate the main active components, potential targets of action, and pharmacological mechanisms of Erhuang Quzhi Formula (EHQZF) against NAFLD using network pharmacology, molecular docking, and experimental validation. The main active chemical components of EHQZF and the potential targets for treating NAFLD were extracted and analyzed. The PPI network diagram of "Traditional Chinese Medicine-Active Ingredients-Core Targets" was constructed and the GO, KEGG, and molecular docking analysis were carried out. Identification of components in traditional Chinese medicine compounds was conducted by LC-MS. NAFLD models were established and relevant pathologic indicators and Western blot were analyzed in vivo and ex vivo. Totally 8 herbs attributed to the liver meridian and 20 corresponding targets of NAFLD were obtained from EHQZF. Flavonoids and phenolic acids as the main components of EHQZF treated NAFLD through the MAPK/AKT signaling pathway. Pathway enrichment analysis focused on the MAPK/AKT signaling pathway and apoptosis signaling pathway. Molecular docking showed that Quercetin and Luteolin had stable binding structures with AKT1, STAT3, and other targets. Experiments showed that EHQZF reduced lipid accumulation, regulated changes in adipose tissue, inhibited the MAPK/AKT signaling pathway and exert multiple components, several targets, and multiple pathway interactions to treat NAFLD.
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Affiliation(s)
- Peiyan Pan
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China
| | - Weijun Chen
- Xinjiang Second Medical College, Karamay, China
| | - Xi Wu
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Cong Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China
| | - Yuefeng Gao
- College of Applied Engineering, Henan University of Science and Technology, Sanmenxia, China
| | - Dongmei Qin
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China.
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15
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Manning VA, Moore PA, Trippe KM. Metagenome-assembled genomes of an acid-tolerant nitrifying bacterial community isolated from a bioreactor used in ammonium scrubbers at animal-rearing facilities. Microbiol Resour Announc 2024; 13:e0038624. [PMID: 38864651 PMCID: PMC11256797 DOI: 10.1128/mra.00386-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 05/09/2024] [Indexed: 06/13/2024] Open
Abstract
We report 12 metagenome-assembled genomes (MAGS) of a bioreactor community of acid-tolerant nitrifying bacteria. The MAGS include autotrophs in the Nitrospira genus and heterotrophs in the Xanthomonadales, Ktedonobacterales, Cytophagales, Burkholderiales, and Hyphomicrobiales. These taxonomic and genomic data provide insights into the core community members required for nitrification at low pH.
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Affiliation(s)
- Viola A. Manning
- USDA-Agricultural Research Service, National Forage Seed Production Research Center, Corvallis, Oregon, USA
| | - Phillip A. Moore
- USDA-Agricultural Research Service, Poultry Production and Product Safety Research Center, Fayetteville, Arkansas, USA
| | - Kristin M. Trippe
- USDA-Agricultural Research Service, National Forage Seed Production Research Center, Corvallis, Oregon, USA
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, USA
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16
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Zhang X, Theotokis PI, Li N, Wright CF, Samocha KE, Whiffin N, Ware JS. Genetic constraint at single amino acid resolution in protein domains improves missense variant prioritisation and gene discovery. Genome Med 2024; 16:88. [PMID: 38992748 PMCID: PMC11238507 DOI: 10.1186/s13073-024-01358-9] [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: 09/18/2023] [Accepted: 06/26/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND One of the major hurdles in clinical genetics is interpreting the clinical consequences associated with germline missense variants in humans. Recent significant advances have leveraged natural variation observed in large-scale human populations to uncover genes or genomic regions that show a depletion of natural variation, indicative of selection pressure. We refer to this as "genetic constraint". Although existing genetic constraint metrics have been demonstrated to be successful in prioritising genes or genomic regions associated with diseases, their spatial resolution is limited in distinguishing pathogenic variants from benign variants within genes. METHODS We aim to identify missense variants that are significantly depleted in the general human population. Given the size of currently available human populations with exome or genome sequencing data, it is not possible to directly detect depletion of individual missense variants, since the average expected number of observations of a variant at most positions is less than one. We instead focus on protein domains, grouping homologous variants with similar functional impacts to examine the depletion of natural variations within these comparable sets. To accomplish this, we develop the Homologous Missense Constraint (HMC) score. We utilise the Genome Aggregation Database (gnomAD) 125 K exome sequencing data and evaluate genetic constraint at quasi amino-acid resolution by combining signals across protein homologues. RESULTS We identify one million possible missense variants under strong negative selection within protein domains. Though our approach annotates only protein domains, it nonetheless allows us to assess 22% of the exome confidently. It precisely distinguishes pathogenic variants from benign variants for both early-onset and adult-onset disorders. It outperforms existing constraint metrics and pathogenicity meta-predictors in prioritising de novo mutations from probands with developmental disorders (DD). It is also methodologically independent of these, adding power to predict variant pathogenicity when used in combination. We demonstrate utility for gene discovery by identifying seven genes newly significantly associated with DD that could act through an altered-function mechanism. CONCLUSIONS Grouping variants of comparable functional impacts is effective in evaluating their genetic constraint. HMC is a novel and accurate predictor of missense consequence for improved variant interpretation.
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Affiliation(s)
- Xiaolei Zhang
- National Heart & Lung Institute, Imperial College London, London, UK.
- MRC Laboratory of Medical Sciences, Imperial College London, London, UK.
- Royal Brompton & Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London, UK.
- Present address: European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, UK.
| | - Pantazis I Theotokis
- National Heart & Lung Institute, Imperial College London, London, UK
- MRC Laboratory of Medical Sciences, Imperial College London, London, UK
- Royal Brompton & Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Nicholas Li
- National Heart & Lung Institute, Imperial College London, London, UK
- MRC Laboratory of Medical Sciences, Imperial College London, London, UK
- Royal Brompton & Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Caroline F Wright
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Royal Devon & Exeter Hospital, Exeter, UK
| | - Kaitlin E Samocha
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nicola Whiffin
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Centre for Human Genetics, University of Oxford, Oxford, UK.
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK.
| | - James S Ware
- National Heart & Lung Institute, Imperial College London, London, UK.
- MRC Laboratory of Medical Sciences, Imperial College London, London, UK.
- Royal Brompton & Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London, UK.
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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17
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Zhang Y, Yang Y, Ren L, Zhan M, Sun T, Zou Q, Zhang Y. Predicting intercellular communication based on metabolite-related ligand-receptor interactions with MRCLinkdb. BMC Biol 2024; 22:152. [PMID: 38978014 PMCID: PMC11232326 DOI: 10.1186/s12915-024-01950-w] [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: 03/16/2024] [Accepted: 07/03/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Metabolite-associated cell communications play critical roles in maintaining human biological function. However, most existing tools and resources focus only on ligand-receptor interaction pairs where both partners are proteinaceous, neglecting other non-protein molecules. To address this gap, we introduce the MRCLinkdb database and algorithm, which aggregates and organizes data related to non-protein L-R interactions in cell-cell communication, providing a valuable resource for predicting intercellular communication based on metabolite-related ligand-receptor interactions. RESULTS Here, we manually curated the metabolite-ligand-receptor (ML-R) interactions from the literature and known databases, ultimately collecting over 790 human and 670 mouse ML-R interactions. Additionally, we compiled information on over 1900 enzymes and 260 transporter entries associated with these metabolites. We developed Metabolite-Receptor based Cell Link Database (MRCLinkdb) to store these ML-R interactions data. Meanwhile, the platform also offers extensive information for presenting ML-R interactions, including fundamental metabolite information and the overall expression landscape of metabolite-associated gene sets (such as receptor, enzymes, and transporter proteins) based on single-cell transcriptomics sequencing (covering 35 human and 26 mouse tissues, 52 human and 44 mouse cell types) and bulk RNA-seq/microarray data (encompassing 62 human and 39 mouse tissues). Furthermore, MRCLinkdb introduces a web server dedicated to the analysis of intercellular communication based on ML-R interactions. MRCLinkdb is freely available at https://www.cellknowledge.com.cn/mrclinkdb/ . CONCLUSIONS In addition to supplementing ligand-receptor databases, MRCLinkdb may provide new perspectives for decoding the intercellular communication and advancing related prediction tools based on ML-R interactions.
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Affiliation(s)
- Yuncong Zhang
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Jinan University, Zhuhai, Guangdong, China
| | - Yu Yang
- Innovative Institute of Chinese Medicine and Pharmacy, Academy for Interdiscipline, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Healthcare Technology, Chengdu Neusoft University, Chengdu, China
| | - Liping Ren
- School of Healthcare Technology, Chengdu Neusoft University, Chengdu, China
| | - Meixiao Zhan
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Jinan University, Zhuhai, Guangdong, China
| | - Taoping Sun
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Jinan University, Zhuhai, Guangdong, China.
| | - Quan Zou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China.
| | - Yang Zhang
- Innovative Institute of Chinese Medicine and Pharmacy, Academy for Interdiscipline, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China.
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18
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Zhang X, Ma J, Li H, Zhai Y, He F, Wang X, Li Y. OrganogenesisDB: A Comprehensive Database Exploring the Cell-Type Identities and Gene Expression Dynamics during Organogenesis. SMALL METHODS 2024:e2301758. [PMID: 38967205 DOI: 10.1002/smtd.202301758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/02/2024] [Indexed: 07/06/2024]
Abstract
Organogenesis, the phase of embryonic development that starts at the end of gastrulation and continues until birth is the critical process for understanding cellular differentiation and maturation during organ development. The rapid development of single-cell transcriptomics technology has led to many novel discoveries in understanding organogenesis while also accumulating a large quantity of data. To fill this gap, OrganogenesisDB (http://organogenesisdb.com/), which is a comprehensive database dedicated to exploring cell-type identification and gene expression dynamics during organogenesis, is developed. OrganogenesisDB contains single-cell RNA sequencing data for more than 1.4 million cells from 49 published datasets spanning various developmental stages. Additionally, 3324 cell markers are manually curated for 1120 cell types across 9 human organs and 4 mouse organs. OrganogenesisDB leverages various analysis tools to assist users in annotating and understanding cell types at different developmental stages and helps in mining and presenting genes that exhibit specific patterns and play key regulatory roles during cell maturation and differentiation. This work provides a critical resource and useful tool for deciphering cell lineage determination and uncovering the mechanisms underlying organogenesis.
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Affiliation(s)
- Xinshuai Zhang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
- Research Unit of Proteomics-Driven Cancer Precision Medicine, Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Jiacheng Ma
- Tsinghua-Peking Center for Life Sciences, School of Lifescience, Tsinghua University, Beijing, 100084, China
| | - Hongchao Li
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
- College of Life Science, Hebei University, Baoding, Hebei, 071002, China
| | - Yuanjun Zhai
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
| | - Fuchu He
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
- Research Unit of Proteomics-Driven Cancer Precision Medicine, Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Xiaowen Wang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
- Research Unit of Proteomics-Driven Cancer Precision Medicine, Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Yang Li
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
- Research Unit of Proteomics-Driven Cancer Precision Medicine, Chinese Academy of Medical Sciences, Beijing, 102206, China
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19
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da Silva CC, Trevino CM, Mitchell J, Murali H, Tsimbal C, Dalessandro E, Carroll SH, Kochhar S, Curtis SW, Cheng CHE, Wang F, Kutschera E, Carstens RP, Xing Y, Wang K, Leslie EJ, Liao EC. Functional analysis of ESRP1/2 gene variants and CTNND1 isoforms in orofacial cleft pathogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.02.601574. [PMID: 39005284 PMCID: PMC11245018 DOI: 10.1101/2024.07.02.601574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Orofacial cleft (OFC) is a common human congenital anomaly. Epithelial-specific RNA splicing regulators ESRP1 and ESRP2 regulate craniofacial morphogenesis and their disruption result in OFC in zebrafish, mouse and humans. Using esrp1/2 mutant zebrafish and murine Py2T cell line models, we functionally tested the pathogenicity of human ESRP1/2 gene variants. We found that many variants predicted by in silico methods to be pathogenic were functionally benign. Esrp1 also regulates the alternative splicing of Ctnnd1 and these genes are co-expressed in the embryonic and oral epithelium. In fact, over-expression of ctnnd1 is sufficient to rescue morphogenesis of epithelial-derived structures in esrp1/2 zebrafish mutants. Additionally, we identified 13 CTNND1 variants from genome sequencing of OFC cohorts, confirming CTNND1 as a key gene in human OFC. This work highlights the importance of functional assessment of human gene variants and demonstrates the critical requirement of Esrp-Ctnnd1 acting in the embryonic epithelium to regulate palatogenesis.
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Affiliation(s)
- Caroline Caetano da Silva
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
| | | | | | - Hemma Murali
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Casey Tsimbal
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
- Shriners Hospital for Children, Tampa, FL, USA
| | - Eileen Dalessandro
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
| | - Shannon H. Carroll
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
- Shriners Hospital for Children, Tampa, FL, USA
| | - Simren Kochhar
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Sarah W. Curtis
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Ching Hsun Eric Cheng
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
| | - Feng Wang
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, PA, USA
| | - Eric Kutschera
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, PA, USA
| | - Russ P. Carstens
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Yi Xing
- Center for Genomic Medicine, Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Kai Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Elizabeth J. Leslie
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Eric C. Liao
- Center for Craniofacial Innovation, Division of Plastic and Reconstructive Surgery, Department of Surgery, Children’s Hospital of Philadelphia, PA, USA
- Harvard Medical School, Boston, MA, USA
- Shriners Hospital for Children, Tampa, FL, USA
- Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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20
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Barros KO, Batista TM, Soares RCC, Lopes MR, Alvarenga FBM, Souza GFL, Abegg MA, Santos ARO, Góes-Neto A, Hilário HO, Moreira RG, Franco GR, Lachance MA, Rosa CA. Spathaspora marinasilvae sp. nov., a xylose-fermenting yeast isolated from galleries of passalid beetles and rotting wood in the Amazonian rainforest biome. Yeast 2024; 41:437-447. [PMID: 38850070 DOI: 10.1002/yea.3966] [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: 03/12/2024] [Revised: 05/03/2024] [Accepted: 05/23/2024] [Indexed: 06/09/2024] Open
Abstract
Four yeast isolates were obtained from rotting wood and galleries of passalid beetles collected in different sites of the Brazilian Amazonian Rainforest in Brazil. This yeast produces unconjugated allantoid asci each with a single elongated ascospore with curved ends. Sequence analysis of the internal transcribed spacer-5.8 S region and the D1/D2 domains of the large subunit ribosomal RNA (rRNA) gene showed that the isolates represent a novel species of the genus Spathaspora. The novel species is phylogenetically related to a subclade containing Spathaspora arborariae and Spathaspora suhii. Phylogenomic analysis based on 1884 single-copy orthologs for a set of Spathaspora species whose whole genome sequences are available confirmed that the novel species represented by strain UFMG-CM-Y285 is phylogenetically close to Sp. arborariae. The name Spathaspora marinasilvae sp. nov. is proposed to accommodate the novel species. The holotype of Sp. marinasilvae is CBS 13467 T (MycoBank 852799). The novel species was able to accumulate xylitol and produce ethanol from d-xylose, a trait of biotechnological interest common to several species of the genus Spathaspora.
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Affiliation(s)
- Katharina O Barros
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thiago M Batista
- Centro de Formação em Ciências Ambientais, C.P. 108, Universidade Federal do Sul da Bahia, Porto Seguro, Bahia, Brazil
| | - Rafaela C C Soares
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana R Lopes
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Flávia B M Alvarenga
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gisele F L Souza
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Maxwel A Abegg
- Institute of Exact Sciences and Technology (ICET), Federal University of Amazonas (UFAM), Itacoatiara, Brazil
| | - Ana Raquel O Santos
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Aristóteles Góes-Neto
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Heron O Hilário
- Laboratório de Genética da Conservação, PPG Biologia dos Vertebrados, Pontifícia Universidade Católica de Minas Gerais, Contagem, Minas Gerais, Brazil
| | - Rennan G Moreira
- Laboratorio Multiusuário de Genômica, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Glória R Franco
- Departamento de Bioquímica e Imunologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marc-André Lachance
- Department of Biology, University of Western Ontario, London, Ontario, Canada
| | - Carlos A Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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21
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Alharbi M, Alshammari A, Alsabhan JF, Alzarea SI, Alshammari T, Alasmari F, Alasmari AF. A novel vaccine construct against Zika virus fever: insights from epitope-based vaccine discovery through molecular modeling and immunoinformatics approaches. Front Immunol 2024; 15:1426496. [PMID: 39050858 PMCID: PMC11267680 DOI: 10.3389/fimmu.2024.1426496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/05/2024] [Indexed: 07/27/2024] Open
Abstract
The Zika virus (ZIKV) is an emerging virus associated with the Flaviviridae family that mainly causes infection in pregnant women and leads to several abnormalities during pregnancy. This virus has unique properties that may lead to pathological diseases. As the virus has the ability to evade immune response, a crucial effort is required to deal with ZIKV. Vaccines are a safe means to control different pathogenic infectious diseases. In the current research, a multi-epitope-based vaccination against ZIKV is being designed using in silico methods. For the epitope prediction and prioritization phase, ZIKV polyprotein (YP_002790881.1) and flavivirus polyprotein (>YP_009428568.1) were targeted. The predicted B-cell epitopes were used for MHC-I and MHC-II epitope prediction. Afterward, several immunoinformatics filters were applied and nine (REDLWCGSL, MQDLWLLRR, YKKSGITEV, TYTDRRWCF, RDAFPDSNS, KPSLGLINR, ELIGRARVS, AITQGKREE, and EARRSRRAV) epitopes were found to be probably antigenic in nature, non-allergenic, non-toxic, and water soluble without any toxins. Selected epitopes were joined using a particular GPGPG linker to create the base vaccination for epitopes, and an extra EAAAK linker was used to link the adjuvant. A total of 312 amino acids with a molecular weight (MW) of 31.62762 and an instability value of 34.06 were computed in the physicochemical characteristic analysis, indicating that the vaccine design is stable. The molecular docking analysis predicted a binding energy of -329.46 (kcal/mol) for TLR-3 and -358.54 (kcal/mol) for TLR-2. Moreover, the molecular dynamics simulation analysis predicted that the vaccine and receptor molecules have stable binding interactions in a dynamic environment. The C-immune simulation analysis predicted that the vaccine has the ability to generate both humoral and cellular immune responses. Based on the design, the vaccine construct has the best efficacy to evoke immune response in theory, but experimental analysis is required to validate the in silico base approach and ensure its safety.
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Affiliation(s)
- Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Jawza F. Alsabhan
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Aljouf, Saudi Arabia
| | - Talal Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Fawaz Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah F. Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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22
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Chen X, Zou T, Zeng Q, Chen Y, Zhang C, Jiang S, Ding G. Metagenomic analysis reveals ecological and functional signatures of oral phageome associated with severe early childhood caries. J Dent 2024; 146:105059. [PMID: 38801939 DOI: 10.1016/j.jdent.2024.105059] [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: 12/15/2023] [Revised: 05/05/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
OBJECTIVES Severe early childhood caries (S-ECC) is highly prevalent, affecting children's oral health. S-ECC development is closely associated with the complex oral microbial microbiome and its microorganism interactions, such as the imbalance of bacteriophages and bacteria. Till now, little is known about oral phageome on S-ECC. Therefore, this study aimed to investigate the potential role of the oral phageome in the pathogenesis of S-ECC. METHODS Unstimulated saliva (2 mL) was collected from 20 children with and without S-ECC for metagenomics analysis. Metagenomics sequencing and bioinformatic analysis were performed to determine the two groups' phageome diversity, taxonomic and functional annotations. Statistical analysis and visualization were performed with R and SPSS Statistics software. RESULTS 85.7 % of the extracted viral sequences were predicted from phages, in which most phages were classified into Myoviridae, Siphoviridae, and Podoviridae. Alpha diversity decreased, and Beta diversity increased in the S-ECC phageome compared to the healthy group. The abundance of Podoviridae phages increased, and the abundance of Inoviridae, Herelleviridae, and Streptococcus phages decreased in the S-ECC group. Functional annotation revealed increased annotation on glycoside hydrolases and nucleotide metabolism, decreased glycosyl transferases, carbohydrate-binding modules, and biogenic metabolism in the S-ECC phageome. CONCLUSIONS Metagenomic analysis revealed reduced Streptococcus phages and significant changes in functional annotations within the S-ECC phageome. These findings suggest a potential weakening of the regulatory influence of oral bacteria, which may indicate the development of innovative prevention and treatment strategies for S-ECC. These implications deserve further investigation and hold promise for advancing our understanding and management of S-ECC. CLINICAL SIGNIFICANCE The findings of this study indicate that oral phageomes are associated with bacterial genomes and metabolic processes, affecting the development of S-ECC. The reduced modulatory effect of the oral phageome in counteracting S-ECC's cariogenic activity suggests a new avenue for the prevention and treatment of S-ECC.
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Affiliation(s)
- Xin Chen
- Shenzhen Children's Hospital of China Medical University (CMU), Shenzhen, PR China; Department of Stomatology, Shenzhen Children's Hospital, Shenzhen, PR China
| | - Ting Zou
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, Guangdong, PR China
| | - Qinglu Zeng
- The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PR China
| | - Yubing Chen
- The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PR China
| | - Chengfei Zhang
- Endodontology, Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, PR China
| | - Shan Jiang
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, Guangdong, PR China.
| | - Guicong Ding
- Shenzhen Children's Hospital of China Medical University (CMU), Shenzhen, PR China; Department of Stomatology, Shenzhen Children's Hospital, Shenzhen, PR China.
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23
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Cai M, Song K, Wang R, Wang S, Chen H, Wang H. Tracking intra-species and inter-genus transmission of KPC through global plasmids mining. Cell Rep 2024; 43:114351. [PMID: 38923465 DOI: 10.1016/j.celrep.2024.114351] [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: 03/21/2024] [Revised: 04/28/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Klebsiella pneumoniae carbapenemase (KPC) poses a major public health risk. Understanding its transmission dynamics requires examining the epidemiological features of related plasmids. Our study compiled 15,660 blaKPC-positive isolates globally over the past two decades. We found extensive diversity in the genetic background of KPC, with 23 Tn4401-related and 341 non-Tn4401 variants across 163 plasmid types in 14 genera. Intra-K. pneumoniae and cross-genus KPC transmission patterns varied across four distinct periods. In the initial periods, plasmids with narrow host ranges gradually established a survival advantage. In later periods, broad-host-range plasmids became crucial for cross-genera transmission. In total, 61 intra-K. pneumoniae and 66 cross-genus transmission units have been detected. Furthermore, phylogenetic reconstruction dated the origin of KPC transmission back to 1991 and revealed frequent exchanges across countries. Our research highlights the frequent and transient spread events of KPC mediated by plasmids across multiple genera and offers theoretical support for high-risk plasmid monitoring.
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Affiliation(s)
- Meng Cai
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China
| | - Kaiwen Song
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China; Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China
| | - Ruobing Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China
| | - Shuyi Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China
| | - Hongbin Chen
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China.
| | - Hui Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing 100044, China; Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China.
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24
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Heng H, Yang L, Zheng Z, Yang C, Yang X, Zhao W, Sun R, Chen K, Ye L, Li J, Chan EWC, Chen S. Characterization of Acinetobacter baumannii at a tertiary hospital in Guangzhou: a genomic and clinical study. Microbes Infect 2024:105380. [PMID: 38909679 DOI: 10.1016/j.micinf.2024.105380] [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: 04/02/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/25/2024]
Abstract
Acinetobacter baumannii (AB) infections have become a global public health concern due to the continued increase in the incidence of infection and the rate of resistance to carbapenems. This study aimed to investigate the genomic features of AB strains recovered from a tertiary hospital and assess the clinical implications of the findings. A total of 217 AB strains were collected between 2016 and 2018 at a tertiary hospital in Guangzhou, with 183 (84.33%) being carbapenem-resistant AB (CRAB), with the main mechanism being the carriage of the blaOXA-23 gene. The overall mortality rate of patients caused by such strains was 15.21% (n = 33). Artificial lung ventilation and the use of meropenem were mortality risk factors in AB-infected patients, while KL2 AB infection was negatively associated. Core genome multilocus sequence typing and clustering analysis were performed on the integrated AB genome collection from the NCBI database and this study to illustrate the population structure among China. The results revealed diverse core genome profiles (n = 17) among AB strains from China, and strains from this single hospital exhibited most of the core genome profiles (n = 13), suggesting genetic variability within the hospital and transmission across the country. These findings show that the high transmission potential of the CRAB strains and meropenem usage that confers a selective advantage of CRAB clinically are two major factors that pose significant challenges to the effective clinical management of AB infections. Understanding the genetic features and transmission patterns of clinical AB strains is crucial for the effective control of infections caused by this pathogen.
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Affiliation(s)
- Heng Heng
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China; State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Ling Yang
- Department of Laboratory Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhiwei Zheng
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Chen Yang
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China; State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Xuemei Yang
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Wenxing Zhao
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Ruanyang Sun
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Kaichao Chen
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Lianwei Ye
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China; State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Jun Li
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Edward Wai-Chi Chan
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Sheng Chen
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China.
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25
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Kamalakar A, Tobin B, Kaimari S, Robinson MH, Toma AI, Cha T, Chihab S, Moriarity I, Gautam S, Bhattaram P, Abramowicz S, Drissi H, García AJ, Wood LB, Goudy SL. Delivery of A Jagged1-PEG-MAL hydrogel with Pediatric Human Bone Cells Regenerates Critically-Sized Craniofacial Bone Defects. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.06.561291. [PMID: 37873448 PMCID: PMC10592619 DOI: 10.1101/2023.10.06.561291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Treatments for congenital and acquired craniofacial (CF) bone abnormalities are limited and expensive. Current reconstructive methods include surgical correction of injuries, short-term bone stabilization, and long-term use of bone grafting solutions, including implantation of (i) allografts which are prone to implant failure or infection, (ii) autografts which are limited in supply. Current bone regenerative approaches have consistently relied on BMP2 application with or without addition of stem cells. BMP2 treatment can lead to severe bony overgrowth or uncontrolled inflammation, which can accelerate further bone loss. Bone marrow-derived mesenchymal stem cell-based treatments, which do not have the side effects of BMP2, are not currently FDA approved, and are time and resource intensive. There is a critical need for novel bone regenerative therapies to treat CF bone loss that have minimal side effects, are easily available, and are affordable. In this study we investigated novel bone regenerative therapies downstream of JAGGED1 (JAG1). We previously demonstrated that JAG1 induces murine cranial neural crest (CNC) cells towards osteoblast commitment via a NOTCH non-canonical pathway involving JAK2-STAT5 (1) and that JAG1 delivery with CNC cells elicits bone regeneration in vivo. In this study, we hypothesize that delivery of JAG1 and induction of its downstream NOTCH non-canonical signaling in pediatric human osteoblasts constitute an effective bone regenerative treatment in an in vivo murine bone loss model of a critically-sized cranial defect. Using this CF defect model in vivo, we delivered JAG1 with pediatric human bone-derived osteoblast-like (HBO) cells to demonstrate the osteo-inductive properties of JAG1 in human cells and in vitro we utilized the HBO cells to identify the downstream non-canonical JAG1 signaling intermediates as effective bone regenerative treatments. In vitro, we identified an important mechanism by which JAG1 induces pediatric osteoblast commitment and bone formation involving the phosphorylation of p70 S6K. This discovery enables potential new treatment avenues involving the delivery of tethered JAG1 and the downstream activators of p70 S6K as powerful bone regenerative therapies in pediatric CF bone loss.
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Affiliation(s)
- Archana Kamalakar
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
| | - Brendan Tobin
- Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
- School of Chemistry and Biomolecular Engineering, Georgia Tech College of Engineering, Atlanta, GA, USA
| | - Sundus Kaimari
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - M. Hope Robinson
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
| | - Afra I. Toma
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Timothy Cha
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
| | - Samir Chihab
- Department of Orthopedics, Emory University, Atlanta, GA, USA
| | - Irica Moriarity
- Neuroscience Program in College of Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Surabhi Gautam
- Department of Orthopedics, Emory University, Atlanta, GA, USA
| | - Pallavi Bhattaram
- Department of Orthopedics, Emory University, Atlanta, GA, USA
- The Atlanta Veterans Affairs Medical Center Atlanta, GA, USA
| | - Shelly Abramowicz
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
- Department of Surgery, Division of Oral and Maxillofacial Surgery, Emory University, Atlanta, GA, USA
| | - Hicham Drissi
- Department of Cell biology, Emory University, Atlanta, GA, USA
- Department of Orthopedics, Emory University, Atlanta, GA, USA
- The Atlanta Veterans Affairs Medical Center Atlanta, GA, USA
| | - Andrés J. García
- Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
- George W. Woodruff School of Mechanical Engineering, Georgia Tech College of Engineering, Atlanta, GA, USA
| | - Levi B. Wood
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
- George W. Woodruff School of Mechanical Engineering, Georgia Tech College of Engineering, Atlanta, GA, USA
| | - Steven L. Goudy
- Department of Pediatric Otolaryngology, Emory University, Atlanta, GA, USA
- Department of Pediatric Otolaryngology, Children’s Healthcare of Atlanta, Atlanta, GA, USA
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26
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Lin JJ, Wang FY, Chung WY, Wang TY. The genomic evolution of visual opsin genes in amphibians. Vision Res 2024; 222:108447. [PMID: 38906036 DOI: 10.1016/j.visres.2024.108447] [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: 09/14/2023] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/23/2024]
Abstract
Among tetrapod (terrestrial) vertebrates, amphibians remain more closely tied to an amphibious lifestyle than amniotes, and their visual opsin genes may be adapted to this lifestyle. Previous studies have discussed physiological, morphological, and molecular changes in the evolution of amphibian vision. We predicted the locations of the visual opsin genes, their neighboring genes, and the tuning sites of the visual opsins, in 39 amphibian genomes. We found that all of the examined genomes lacked the Rh2 gene. The caecilian genomes have further lost the SWS1 and SWS2 genes; only the Rh1 and LWS genes were retained. The loss of the SWS1 and SWS2 genes in caecilians may be correlated with their cryptic lifestyles. The opsin gene syntenies were predicted to be highly similar to those of other bony vertebrates. Moreover, dual syntenies were identified in allotetraploid Xenopus laevis and X. borealis. Tuning site analysis showed that only some Caudata species might have UV vision. In addition, the S164A that occurred several times in LWS evolution might either functionally compensate for the Rh2 gene loss or fine-tuning visual adaptation. Our study provides the first genomic evidence for a caecilian LWS gene and a genomic viewpoint of visual opsin genes by reviewing the gains and losses of visual opsin genes, the rearrangement of syntenies, and the alteration of spectral tuning in the course of amphibians' evolution.
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Affiliation(s)
- Jinn-Jy Lin
- National Center for High-performance Computing, National Applied Research Laboratories, Hsinchu, Taiwan
| | - Feng-Yu Wang
- Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung, Taiwan
| | - Wen-Yu Chung
- Department of Computer Science and Information Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Tzi-Yuan Wang
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan.
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Chambers BA, Basili D, Word L, Baker N, Middleton A, Judson RS, Shah I. Searching for LINCS to Stress: Using Text Mining to Automate Reference Chemical Curation. Chem Res Toxicol 2024; 37:878-893. [PMID: 38736322 DOI: 10.1021/acs.chemrestox.3c00335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Adaptive stress response pathways (SRPs) restore cellular homeostasis following perturbation but may activate terminal outcomes like apoptosis, autophagy, or cellular senescence if disruption exceeds critical thresholds. Because SRPs hold the key to vital cellular tipping points, they are targeted for therapeutic interventions and assessed as biomarkers of toxicity. Hence, we are developing a public database of chemicals that perturb SRPs to enable new data-driven tools to improve public health. Here, we report on the automated text-mining pipeline we used to build and curate the first version of this database. We started with 100 reference SRP chemicals gathered from published biomarker studies to bootstrap the database. Second, we used information retrieval to find co-occurrences of reference chemicals with SRP terms in PubMed abstracts and determined pairwise mutual information thresholds to filter biologically relevant relationships. Third, we applied these thresholds to find 1206 putative SRP perturbagens within thousands of substances in the Library of Integrated Network-Based Cellular Signatures (LINCS). To assign SRP activity to LINCS chemicals, domain experts had to manually review at least three publications for each of 1206 chemicals out of 181,805 total abstracts. To accomplish this efficiently, we implemented a machine learning approach to predict SRP classifications from texts to prioritize abstracts. In 5-fold cross-validation testing with a corpus derived from the 100 reference chemicals, artificial neural networks performed the best (F1-macro = 0.678) and prioritized 2479/181,805 abstracts for expert review, which resulted in 457 chemicals annotated with SRP activities. An independent analysis of enriched mechanisms of action and chemical use class supported the text-mined chemical associations (p < 0.05): heat shock inducers were linked with HSP90 and DNA damage inducers to topoisomerase inhibition. This database will enable novel applications of LINCS data to evaluate SRP activities and to further develop tools for biomedical information extraction from the literature.
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Affiliation(s)
- Bryant A Chambers
- Center for Computational Toxicology and Exposure, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Danilo Basili
- Unilever, Safety and Environmental Assurance Centre (SEAC), Colworth Science Park, Sharnbrook, Bedfordshire MK44 1LQ, U.K
| | - Laura Word
- Center for Computational Toxicology and Exposure, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Nancy Baker
- Leidos, Research Triangle Park, North Carolina 27711, United States
| | - Alistair Middleton
- Unilever, Safety and Environmental Assurance Centre (SEAC), Colworth Science Park, Sharnbrook, Bedfordshire MK44 1LQ, U.K
| | - Richard S Judson
- Center for Computational Toxicology and Exposure, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Imran Shah
- Center for Computational Toxicology and Exposure, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
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28
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Frangieh CJ, Wilkinson ME, Strebinger D, Strecker J, Walsh ML, Faure G, Yushenova IA, Macrae RK, Arkhipova IR, Zhang F. Internal initiation of reverse transcription in a Penelope-like retrotransposon. Mob DNA 2024; 15:12. [PMID: 38863000 PMCID: PMC11167929 DOI: 10.1186/s13100-024-00322-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 06/03/2024] [Indexed: 06/13/2024] Open
Abstract
Eukaryotic retroelements are generally divided into two classes: long terminal repeat (LTR) retrotransposons and non-LTR retrotransposons. A third class of eukaryotic retroelement, the Penelope-like elements (PLEs), has been well-characterized bioinformatically, but relatively little is known about the transposition mechanism of these elements. PLEs share some features with the R2 retrotransposon from Bombyx mori, which uses a target-primed reverse transcription (TPRT) mechanism, but their distinct phylogeny suggests PLEs may utilize a novel mechanism of mobilization. Using protein purified from E. coli, we report unique in vitro properties of a PLE from the green anole (Anolis carolinensis), revealing mechanistic aspects not shared by other retrotransposons. We found that reverse transcription is initiated at two adjacent sites within the transposon RNA that is not homologous to the cleaved DNA, a feature that is reflected in the genomic "tail" signature shared between and unique to PLEs. Our results for the first active PLE in vitro provide a starting point for understanding PLE mobilization and biology.
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Affiliation(s)
- Chris J Frangieh
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Max E Wilkinson
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Daniel Strebinger
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jonathan Strecker
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Michelle L Walsh
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Guilhem Faure
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Irina A Yushenova
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, 02543, USA
| | - Rhiannon K Macrae
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Irina R Arkhipova
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, 02543, USA.
| | - Feng Zhang
- Howard Hughes Medical Institute, Cambridge, MA, 02139, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA.
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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29
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Pust MM, Rocha Castellanos DM, Rzasa K, Dame A, Pishchany G, Assawasirisin C, Liss A, Fernandez-Del Castillo C, Xavier RJ. Absence of a pancreatic microbiome in intraductal papillary mucinous neoplasm. Gut 2024; 73:1131-1141. [PMID: 38429112 PMCID: PMC11187374 DOI: 10.1136/gutjnl-2023-331012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 02/06/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE This study aims to validate the existence of a microbiome within intraductal papillary mucinous neoplasm (IPMN) that can be differentiated from the taxonomically diverse DNA background of next-generation sequencing procedures. DESIGN We generated 16S rRNA amplicon sequencing data to analyse 338 cyst fluid samples from 190 patients and 19 negative controls, the latter collected directly from sterile syringes in the operating room. A subset of samples (n=20) and blanks (n=5) were spiked with known concentrations of bacterial cells alien to the human microbiome to infer absolute abundances of microbial traces. All cyst fluid samples were obtained intraoperatively and included IPMNs with various degrees of dysplasia as well as other cystic neoplasms. Follow-up culturing experiments were conducted to assess bacterial growth for microbiologically significant signals. RESULTS Microbiome signatures of cyst fluid samples were inseparable from those of negative controls, with no difference in taxonomic diversity, and microbial community composition. In a patient subgroup that had recently undergone invasive procedures, a bacterial signal was evident. This outlier signal was not characterised by higher taxonomic diversity but by an increased dominance index of a gut-associated microbe, leading to lower taxonomic evenness compared with the background signal. CONCLUSION The 'microbiome' of IPMNs and other pancreatic cystic neoplasms does not deviate from the background signature of negative controls, supporting the concept of a sterile environment. Outlier signals may appear in a small fraction of patients following recent invasive endoscopic procedures. No associations between microbial patterns and clinical or cyst parameters were apparent.
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Affiliation(s)
- Marie-Madlen Pust
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Kara Rzasa
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Andrea Dame
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Gleb Pishchany
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Charnwit Assawasirisin
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Andrew Liss
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
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30
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Chasovskikh NY, Bobrysheva AA, Chizhik EE. Computer modeling of the peculiarities in the interaction of IL-1 with its receptors in schizophrenia. Vavilovskii Zhurnal Genet Selektsii 2024; 28:332-341. [PMID: 38988763 PMCID: PMC11233830 DOI: 10.18699/vjgb-24-38] [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: 02/13/2023] [Revised: 09/19/2023] [Accepted: 12/22/2023] [Indexed: 07/12/2024] Open
Abstract
One of the primary theories regarding the development of schizophrenia revolves around genetics, indicating the involvement of hereditary factors in various processes, including inflammation. Research has demonstrated that inflammatory reactions occurring in microglia can impact the progression of the disease. It has also been established that genetically determined changes in IL-1 can contribute to schizophrenia, thereby confirming the role of the IL-1 gene cluster in disease susceptibility. The aim of this study is a computer-based assessment of the structural interactions of IL-1 proteins with their receptors in schizophrenia. The study utilized the DisGeNET database, enabling the assessment of the reliability of identified IL-1 polymorphisms. Polymorphisms were also sought using NCBI PubMed. The NCBI Protein service was employed to search for and analyze the position of the identified polymorphisms on the chromosome. Structures for modeling were extracted from the Protein Data Bank database. Protein modeling was conducted using the SWISS-MODEL server, and protein interaction modeling was performed using PRISM. Notably, this study represents the first prediction of the interactions of IL-1α, IL-1β, and IL- 1RA proteins, taking into account the presence of single-nucleotide polymorphisms associated with schizophrenia in the sequence of the corresponding genes. The results indicate that the presence of SNP rs315952 in the IL-1RA protein gene, associated with schizophrenia, may lead to a weakening of the IL-1RA binding to receptors, potentially triggering the initiation of the IL-1 signaling pathway by disrupting or weakening the IL-1RA binding to receptors and facilitating the binding of IL-1 to them. Such alterations could potentially lead to a change in the immune response. The data obtained contribute theoretically to the development of ideas about the molecular mechanisms through which hereditary factors in schizophrenia influence the interactions of proteins of the IL-1 family, which play an important role in the processes of the immune system.
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Affiliation(s)
- N Yu Chasovskikh
- Siberian State Medical University of the Ministry of Healthcare of the Russian Federation, Tomsk, Russia
| | - A A Bobrysheva
- Siberian State Medical University of the Ministry of Healthcare of the Russian Federation, Tomsk, Russia
| | - E E Chizhik
- Siberian State Medical University of the Ministry of Healthcare of the Russian Federation, Tomsk, Russia
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31
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Chong LC, Khan AM. A Systematic Bioinformatics Approach for Mapping the Minimal Set of a Viral Peptidome. Curr Protoc 2024; 4:e1056. [PMID: 38856995 DOI: 10.1002/cpz1.1056] [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] [Indexed: 06/11/2024]
Abstract
Sequence changes in viral genomes generate protein sequence diversity that enables viruses to evade the host immune system, hindering the development of effective preventive and therapeutic interventions. The massive proliferation of sequence data provides unprecedented opportunities to study viral adaptation and evolution. An alignment-free approach removes various restrictions posed by an alignment-dependent approach for studying sequence diversity. The publicly available tool, UNIQmin, offers an alignment-free approach for studying viral sequence diversity at any given rank of taxonomy lineage and is big data ready. The tool performs an exhaustive search to determine the minimal set of sequences required to capture the peptidome diversity within a given dataset. This compression is possible through the removal of identical sequences and unique sequences that do not contribute effectively to the peptidome diversity pool. Herein, we describe a detailed four-part protocol utilizing UNIQmin to generate the minimal set for the purpose of viral diversity analyses, alignment-free at any rank of the taxonomy lineage, using the recent global public health threat Monkeypox virus (MPX) sequence data as a case study. The protocol enables a systematic bioinformatics approach to study sequence diversity across taxonomic lineages, which is crucial for our future preparedness against viral epidemics. This is particularly important when data are abundant, freely available, and alignment is not an option. © 2024 Wiley Periodicals LLC. Basic Protocol 1: Tool installation and input file preparation Basic Protocol 2: Generation of a minimal set of sequences for a given dataset Basic Protocol 3: Comparative minimal set analysis across taxonomic lineage ranks Basic Protocol 4: Factors affecting the minimal set of sequences.
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Affiliation(s)
- Li Chuin Chong
- Centre for Bioinformatics, School of Data Sciences, Perdana University, Kuala Lumpur, Malaysia
- Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Beykoz, Turkey
- Current affiliation: Institute for Experimental Virology, TWINCORE Centre for Experimental and Clinical Infection Research, a Medical School Hannover (MHH) and Helmholtz Centre for Infection Research (HZI) joint venture, Hannover, Germany
| | - Asif M Khan
- Centre for Bioinformatics, School of Data Sciences, Perdana University, Kuala Lumpur, Malaysia
- Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Beykoz, Turkey
- Current affiliation: College of Computing and Information Technology, University of Doha for Science and Technology, Doha, Qatar
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32
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Lim SJ, Rosario K, Kernbach ME, Gross AJ, Furman BT, Breitbart M. Limited potexvirus diversity in eastern Gulf of Mexico seagrass meadows. J Gen Virol 2024; 105:002004. [PMID: 38888587 PMCID: PMC11256451 DOI: 10.1099/jgv.0.002004] [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: 03/22/2024] [Accepted: 06/07/2024] [Indexed: 06/20/2024] Open
Abstract
Turtlegrass virus X, which infects the seagrass Thalassia testudinum, is the only potexvirus known to infect marine flowering plants. We investigated potexvirus distribution in seagrasses using a degenerate reverse transcription polymerase chain reaction (RT-PCR) assay originally designed to capture potexvirus diversity in terrestrial plants. The assay, which implements Potex-5 and Potex-2RC primers, successfully amplified a 584 nt RNA-dependent RNA polymerase (RdRp) fragment from TVX-infected seagrasses. Following validation, we screened 74 opportunistically collected, apparently healthy seagrass samples for potexviruses using this RT-PCR assay. The survey examined the host species T. testudinum, Halodule wrightii, Halophila stipulacea, Syringodium filiforme, Ruppia maritima, and Zostera marina. Potexvirus PCR products were successfully generated only from T. testudinum samples and phylogenetic analysis of sequenced PCR products revealed five distinct TVX sequence variants. Although the RT-PCR assay revealed limited potexvirus diversity in seagrasses, the expanded geographic distribution of TVX shown here emphasizes the importance of future studies to investigate T. testudinum populations across its native range and understand how the observed fine-scale genetic diversity affects host-virus interactions.
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Affiliation(s)
- Shen Jean Lim
- College of Marine Science, University of South Florida, St Petersburg, FL, USA
| | - Karyna Rosario
- College of Marine Science, University of South Florida, St Petersburg, FL, USA
| | | | - Anthony J. Gross
- College of Marine Science, University of South Florida, St Petersburg, FL, USA
| | - Bradley T. Furman
- Florida Fish and Wildlife Conservation Commission, Florida Fish and Wildlife Research Institute, Saint Petersburg, FL, USA
| | - Mya Breitbart
- College of Marine Science, University of South Florida, St Petersburg, FL, USA
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33
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Zhao N, Wu T, Wang W, Zhang L, Gong X. Review and Comparative Analysis of Methods and Advancements in Predicting Protein Complex Structure. Interdiscip Sci 2024; 16:261-288. [PMID: 38955920 DOI: 10.1007/s12539-024-00626-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: 10/26/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 07/04/2024]
Abstract
Protein complexes perform diverse biological functions, and obtaining their three-dimensional structure is critical to understanding and grasping their functions. In many cases, it's not just two proteins interacting to form a dimer; instead, multiple proteins interact to form a multimer. Experimentally resolving protein complex structures can be quite challenging. Recently, there have been efforts and methods that build upon prior predictions of dimer structures to attempt to predict multimer structures. However, in comparison to monomeric protein structure prediction, the accuracy of protein complex structure prediction remains relatively low. This paper provides an overview of recent advancements in efficient computational models for predicting protein complex structures. We introduce protein-protein docking methods in detail and summarize their main ideas, applicable modes, and related information. To enhance prediction accuracy, other critical protein-related information is also integrated, such as predicting interchain residue contact, utilizing experimental data like cryo-EM experiments, and considering protein interactions and non-interactions. In addition, we comprehensively review computational approaches for end-to-end prediction of protein complex structures based on artificial intelligence (AI) technology and describe commonly used datasets and representative evaluation metrics in protein complexes. Finally, we analyze the formidable challenges faced in current protein complex structure prediction tasks, including the structure prediction of heteromeric complex, disordered regions in complex, antibody-antigen complex, and RNA-related complex, as well as the evaluation metrics for complex assessment. We hope that this work will provide comprehensive knowledge of complex structure predictions to contribute to future advanced predictions.
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Affiliation(s)
- Nan Zhao
- Institute for Mathematical Sciences, Renmin University of China, Beijing, 100872, China
- School of Mathematics, Renmin University of China, Beijing, 100872, China
| | - Tong Wu
- Institute for Mathematical Sciences, Renmin University of China, Beijing, 100872, China
- School of Mathematics, Renmin University of China, Beijing, 100872, China
| | - Wenda Wang
- Institute for Mathematical Sciences, Renmin University of China, Beijing, 100872, China
- School of Mathematics, Renmin University of China, Beijing, 100872, China
| | - Lunchuan Zhang
- School of Mathematics, Renmin University of China, Beijing, 100872, China.
| | - Xinqi Gong
- Institute for Mathematical Sciences, Renmin University of China, Beijing, 100872, China.
- School of Mathematics, Renmin University of China, Beijing, 100872, China.
- Beijing Academy of Artificial Intelligence, Beijing, 100084, China.
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Ridgway R, Lu H, Blower TR, Evans NJ, Ainsworth S. Genomic and taxonomic evaluation of 38 Treponema prophage sequences. BMC Genomics 2024; 25:549. [PMID: 38824509 PMCID: PMC11144348 DOI: 10.1186/s12864-024-10461-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 05/28/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Despite Spirochetales being a ubiquitous and medically important order of bacteria infecting both humans and animals, there is extremely limited information regarding their bacteriophages. Of the genus Treponema, there is just a single reported characterised prophage. RESULTS We applied a bioinformatic approach on 24 previously published Treponema genomes to identify and characterise putative treponemal prophages. Thirteen of the genomes did not contain any detectable prophage regions. The remaining eleven contained 38 prophage sequences, with between one and eight putative prophages in each bacterial genome. The prophage regions ranged from 12.4 to 75.1 kb, with between 27 and 171 protein coding sequences. Phylogenetic analysis revealed that 24 of the prophages formed three distinct sequence clusters, identifying putative myoviral and siphoviral morphology. ViPTree analysis demonstrated that the identified sequences were novel when compared to known double stranded DNA bacteriophage genomes. CONCLUSIONS In this study, we have started to address the knowledge gap on treponeme bacteriophages by characterising 38 prophage sequences in 24 treponeme genomes. Using bioinformatic approaches, we have been able to identify and compare the prophage-like elements with respect to other bacteriophages, their gene content, and their potential to be a functional and inducible bacteriophage, which in turn can help focus our attention on specific prophages to investigate further.
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Affiliation(s)
- Rachel Ridgway
- Department of Infection Biology and Microbiomes, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Cheshire, CH64 7TE, UK.
| | - Hanshuo Lu
- Department of Infection Biology and Microbiomes, University of Liverpool, Biosciences Building, Crown Street, Liverpool, L69 7BE, UK
| | - Tim R Blower
- Department of Biosciences, Durham University, Stockton Road, Durham, DH1 3LE, UK
| | - Nicholas James Evans
- Department of Infection Biology and Microbiomes, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Cheshire, CH64 7TE, UK
| | - Stuart Ainsworth
- Department of Infection Biology and Microbiomes, University of Liverpool, Liverpool Science Park IC2, 146 Brownlow Hill, Liverpool, L3 5RF, UK
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Tie S, Tong T, Zhan G, Li X, Ouyang D, Cao J. Network pharmacology prediction and experiment validation of anti-liver cancer activity of Curcumae Rhizoma and Hedyotis diffusa Willd. Ann Med Surg (Lond) 2024; 86:3337-3348. [PMID: 38846818 PMCID: PMC11152801 DOI: 10.1097/ms9.0000000000002074] [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: 02/02/2024] [Accepted: 04/08/2024] [Indexed: 06/09/2024] Open
Abstract
Objective This study aims to elucidate anti-liver cancer components and potential mechanisms of Curcumae Rhizoma and Hedyotis diffusa Willd (CR-HDW). Methods Effective components and targets of CR-HDW were identified from the Traditional Chinese Medicine Systems Pharmacology (TCMSP) database. Liver cancer-related genes were collected from GeneCards, Gene-Disease Association (DisGeNET), and National Center for Biotechnology Information (NCBI). Protein-protein interaction networks, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment were conducted to analyze the identified genes. Molecular docking was used to simulate binding of the active components and their target proteins. Cell activity assay, western blot, and senescence-associated β-galactosidase (SA-β-gal) experiments were conducted to validate core targets identified from molecular docking. Results Ten active compounds of CR-HDW were identified including quercetin, 3-epioleanic acid and hederagenin. The primary core proteins comprised Glyceraldehyde-3-phosphate dehydrogenase (GAPDH), Protein Kinase B(AKT1), etc. The pathways for Phosphoinositide 3-kinase (PI3K)/ AKT, cellular senescence, Fork head boxO (FOXO) were revealed as important for anti-cancer activity of CR-HDW. Molecular docking demonstrated strong binding between liver cancer target proteins and major active components of CR-HDW. In-vitro experiments confirmed that hederagenin and 3-epioleolic acid inhibited HuH-7 cell growth, reduced expression of PI3K, AKT, and mechanistic target of rapamycin (mTOR) proteins. Hederagenin also induced HuH-7 senescence. Conclusions In summary, The authors' results suggest that the CR-HDW component (Hederagenin, 3-epoxy-olanolic acid) can inhibit the proliferation of HuH-7 cells by decreasing PI3K, AKT, and mTOR. Hederagenin also induced HuH-7 senescence.
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Affiliation(s)
- Songyan Tie
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Tianhao Tong
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Gangxiang Zhan
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Xin Li
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Dan Ouyang
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Jianzhong Cao
- Hunan University of Chinese Medicine
- Hunan Provincial Key Laboratory of Diagnostics in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
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36
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Deng Q, Song C, Lin S. An adaptive and robust method for multi-trait analysis of genome-wide association studies using summary statistics. Eur J Hum Genet 2024; 32:681-690. [PMID: 37237036 PMCID: PMC11153499 DOI: 10.1038/s41431-023-01389-7] [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: 05/19/2022] [Revised: 05/01/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Genome-wide association studies (GWAS) have identified thousands of genetic variants associated with human traits or diseases in the past decade. Nevertheless, much of the heritability of many traits is still unaccounted for. Commonly used single-trait analysis methods are conservative, while multi-trait methods improve statistical power by integrating association evidence across multiple traits. In contrast to individual-level data, GWAS summary statistics are usually publicly available, and thus methods using only summary statistics have greater usage. Although many methods have been developed for joint analysis of multiple traits using summary statistics, there are many issues, including inconsistent performance, computational inefficiency, and numerical problems when considering lots of traits. To address these challenges, we propose a multi-trait adaptive Fisher method for summary statistics (MTAFS), a computationally efficient method with robust power performance. We applied MTAFS to two sets of brain imaging derived phenotypes (IDPs) from the UK Biobank, including a set of 58 Volumetric IDPs and a set of 212 Area IDPs. Through annotation analysis, the underlying genes of the SNPs identified by MTAFS were found to exhibit higher expression and are significantly enriched in brain-related tissues. Together with results from a simulation study, MTAFS shows its advantage over existing multi-trait methods, with robust performance across a range of underlying settings. It controls type 1 error well and can efficiently handle a large number of traits.
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Affiliation(s)
- Qiaolan Deng
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, USA
- Department of Statistics, College of Arts and Sciences, The Ohio State University, Columbus, OH, USA
| | - Chi Song
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Shili Lin
- Department of Statistics, College of Arts and Sciences, The Ohio State University, Columbus, OH, USA.
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37
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Sultan G, Zubair S. BRCAFem: A database for breast cancer research. Bioinformation 2024; 20:473-477. [PMID: 39132249 PMCID: PMC11309110 DOI: 10.6026/973206300200473] [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: 05/01/2024] [Revised: 05/31/2024] [Accepted: 05/31/2024] [Indexed: 08/13/2024] Open
Abstract
Amid extensive breast cancer research, valuable data and findings often remain scattered across published literature, databases and web resources, posing challenges for researchers and practitioners in curating specific datasets, genes and relevant information. Hence, we developed BRCAFem (BReast CAncer of Females), an integrated database for breast cancer research. BRCAFem includes 1220 breast cancer genes, 82 FDA-approved breast cancer prevention and treatment drugs and 33 sequencing and imaging datasets. Additionally, BRCAFem provides general information about breast cancer, global statistics, risk factors, treatment options and blogs related to recent updates in breast cancer research.
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Affiliation(s)
- Ghazala Sultan
- Department of Computer Science, Faculty of Science, Aligarh Muslim University, Aligarh-202002, India
| | - Swaleha Zubair
- Department of Computer Science, Faculty of Science, Aligarh Muslim University, Aligarh-202002, India
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38
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Zhou S, Wu X, Yuan Y, Qiao X, Wang Z, Wu M, Qi K, Xie Z, Yin H, Zhang S. Evolutionary origin and gradual accumulation with plant evolution of the LACS family. BMC PLANT BIOLOGY 2024; 24:481. [PMID: 38816698 PMCID: PMC11140897 DOI: 10.1186/s12870-024-05194-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/24/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND LACS (long-chain acyl-CoA synthetase) genes are widespread in organisms and have multiple functions in plants, especially in lipid metabolism. However, the origin and evolutionary dynamics of the LACS gene family remain largely unknown. RESULTS Here, we identified 1785 LACS genes in the genomes of 166 diverse plant species and identified the clades (I, II, III, IV, V, VI) of six clades for the LACS gene family of green plants through phylogenetic analysis. Based on the evolutionary history of plant lineages, we found differences in the origins of different clades, with Clade IV originating from chlorophytes and representing the origin of LACS genes in green plants. The structural characteristics of different clades indicate that clade IV is relatively independent, while the relationships between clades (I, II, III) and clades (V, VI) are closer. Dispersed duplication (DSD) and transposed duplication (TRD) are the main forces driving the evolution of plant LACS genes. Network clustering analysis further grouped all LACS genes into six main clusters, with genes within each cluster showing significant co-linearity. Ka/Ks results suggest that LACS family genes underwent purifying selection during evolution. We analyzed the phylogenetic relationships and characteristics of six clades of the LACS gene family to explain the origin, evolutionary history, and phylogenetic relationships of different clades and proposed a hypothetical evolutionary model for the LACS family of genes in plants. CONCLUSIONS Our research provides genome-wide insights into the evolutionary history of the LACS gene family in green plants. These insights lay an important foundation for comprehensive functional characterization in future research.
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Affiliation(s)
- Siyuan Zhou
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiao Wu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yubo Yuan
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xin Qiao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zewen Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mayan Wu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaijie Qi
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhihua Xie
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hao Yin
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shaoling Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China.
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Zhang M, Xu Y, Zhu G, Zeng Q, Gao R, Qiu J, Su W, Wang R. Human C15orf39 Inhibits Inflammatory Response via PRMT2 in Human Microglial HMC3 Cell Line. Int J Mol Sci 2024; 25:6025. [PMID: 38892217 PMCID: PMC11173073 DOI: 10.3390/ijms25116025] [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: 05/07/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Microglia-mediated inflammatory response is one key cause of many central nervous system diseases, like Alzheimer's disease. We hypothesized that a novel C15orf39 (MAPK1 substrate) plays a critical role in the microglial inflammatory response. To confirm this hypothesis, we used lipopolysaccharide (LPS)-and interferon-gamma (IFN-γ)-induced human microglia HMC3 cells as a representative indicator of the microglial in vitro inflammatory response. We found that C15orf39 was down-regulated when interleukin-6 (IL-6) and tumor necrosis factor-α (TNFα) expression increased in LPS/IFN-γ-stimulated HMC3 cells. Once C15orf39 was overexpressed, IL-6 and TNFα expression were reduced in LPS/IFN-γ-stimulated HMC3 cells. In contrast, C15orf39 knockdown promoted IL-6 and TNFα expression in LPS/IFN-γ-stimulated HMC3 cells. These results suggest that C15orf39 is a suppressive factor in the microglial inflammatory response. Mechanistically, C15orf39 interacts with the cytoplasmic protein arginine methyltransferase 2 (PRMT2). Thus, we termed C15orf39 a PRMT2 interaction protein (PRMT2 IP). Furthermore, the interaction of C15orf39 and PRMT2 suppressed the activation of NF-κB signaling via the PRMT2-IκBα signaling axis, which then led to a reduction in transcription of the inflammatory factors IL6 and TNF-α. Under inflammatory conditions, NF-κBp65 was found to be activated and to suppress C15orf39 promoter activation, after which it canceled the suppressive effect of the C15orf39-PRMT2-IκBα signaling axis on IL-6 and TNFα transcriptional expression. In conclusion, our findings demonstrate that in a steady condition, the interaction of C15orf39 and PRMT2 stabilizes IκBα to inhibit IL-6 and TNFα expression by suppressing NF-κB signaling, which reversely suppresses C15orf39 transcription to enhance IL-6 and TNFα expression in the microglial inflammatory condition. Our study provides a clue as to the role of C15orf39 in microglia-mediated inflammation, suggesting the potential therapeutic efficacy of C15orf39 in some central nervous system diseases.
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Affiliation(s)
- Min Zhang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Qi Zeng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Jinming Qiu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing 100069, China; (M.Z.); (Y.X.); (G.Z.); (Q.Z.); (R.G.); (J.Q.)
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
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40
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Marotta P, Sabatino V, Ambrosino L, Miralto M, Ferrante MI. De novo transcriptome assembly of a lipoxygenase knock-down strain in the diatom Pseudo-nitzschia arenysensis. Sci Data 2024; 11:522. [PMID: 38778120 PMCID: PMC11111692 DOI: 10.1038/s41597-024-03375-0] [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: 11/12/2023] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Diatoms are microalgae that live in marine and freshwater environments and are responsible for about 20% of the world's carbon fixation. Population dynamics of these cells is finely regulated by intricate signal transduction systems, in which oxylipins are thought to play a relevant role. These are oxygenated fatty acids whose biosynthesis is initiated by a lipoxygenase enzyme (LOX) and are widely distributed in all phyla, including diatoms. Here, we present a de novo transcriptome obtained from the RNA-seq performed in the diatom species Pseudo-nitzschia arenysensis, using both a wild-type and a LOX-silenced strain, which will represent a reliable reference for comparative analyses within the Pseudo-nitzschia genus and at a broader taxonomic scale. Moreover, the RNA-seq data can be interrogated to go deeper into the oxylipins metabolic pathways.
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Affiliation(s)
- Pina Marotta
- Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Naples, Italy
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Via P. Castellino 111, Naples, 80131, Italy
| | - Valeria Sabatino
- Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Naples, Italy
| | - Luca Ambrosino
- Department of Research Infrastructures for marine biological resources, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Naples, Italy
| | - Marco Miralto
- Department of Research Infrastructures for marine biological resources, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Naples, Italy
| | - Maria Immacolata Ferrante
- Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Naples, Italy.
- Associate to the National Institute of Oceanography and Applied Geophysics, 34151, Trieste, Italy.
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41
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MacDonald N, Raven N, Diep W, Evans S, Pannipitiya S, Bramwell G, Vanbeek C, Thomas F, Russell T, Dujon AM, Telonis-Scott M, Ujvari B. The molecular evolution of cancer associated genes in mammals. Sci Rep 2024; 14:11650. [PMID: 38773187 PMCID: PMC11109183 DOI: 10.1038/s41598-024-62425-0] [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: 11/16/2023] [Accepted: 05/16/2024] [Indexed: 05/23/2024] Open
Abstract
Cancer is a disease that many multicellular organisms have faced for millions of years, and species have evolved various tumour suppression mechanisms to control oncogenesis. Although cancer occurs across the tree of life, cancer related mortality risks vary across mammalian orders, with Carnivorans particularly affected. Evolutionary theory predicts different selection pressures on genes associated with cancer progression and suppression, including oncogenes, tumour suppressor genes and immune genes. Therefore, we investigated the evolutionary history of cancer associated gene sequences across 384 mammalian taxa, to detect signatures of selection across categories of oncogenes (GRB2, FGL2 and CDC42), tumour suppressors (LITAF, Casp8 and BRCA2) and immune genes (IL2, CD274 and B2M). This approach allowed us to conduct a fine scale analysis of gene wide and site-specific signatures of selection across mammalian lineages under the lens of cancer susceptibility. Phylogenetic analyses revealed that for most species the evolution of cancer associated genes follows the species' evolution. The gene wide selection analyses revealed oncogenes being the most conserved, tumour suppressor and immune genes having similar amounts of episodic diversifying selection. Despite BRCA2's status as a key caretaker gene, episodic diversifying selection was detected across mammals. The site-specific selection analyses revealed that the two apoptosis associated domains of the Casp8 gene of bats (Chiroptera) are under opposing forces of selection (positive and negative respectively), highlighting the importance of site-specific selection analyses to understand the evolution of highly complex gene families. Our results highlighted the need to critically assess different types of selection pressure on cancer associated genes when investigating evolutionary adaptations to cancer across the tree of life. This study provides an extensive assessment of cancer associated genes in mammals with highly representative, and substantially large sample size for a comparative genomic analysis in the field and identifies various avenues for future research into the mechanisms of cancer resistance and susceptibility in mammals.
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Affiliation(s)
- Nick MacDonald
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Nynke Raven
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Wendy Diep
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Samantha Evans
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Senuri Pannipitiya
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Georgina Bramwell
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Caitlin Vanbeek
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Frédéric Thomas
- CREEC, UMR IRD 224-CNRS 5290, Université de Montpellier, Montpellier, France
- MIVEGEC, IRD, CNRS, Université Montpellier, Montpellier, France
| | - Tracey Russell
- Faculty of Science, School of Life and Environmental Sciences, Sydney, NSW, Australia
| | - Antoine M Dujon
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Marina Telonis-Scott
- School of Life and Environmental Sciences, Deakin University, Burwood, Burwood, VIC, 3125, Australia
| | - Beata Ujvari
- School of Life and Environmental Sciences, Deakin University, Geelong, Waurn Ponds, Geelong, VIC, 3216, Australia.
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Li Y, Wang Z, Yang J, Sun Y, He Y, Wang Y, Chen X, Liang Y, Zhang N, Wang X, Zhao W, Hu G, Yang Q. CircTRIM1 encodes TRIM1-269aa to promote chemoresistance and metastasis of TNBC via enhancing CaM-dependent MARCKS translocation and PI3K/AKT/mTOR activation. Mol Cancer 2024; 23:102. [PMID: 38755678 PMCID: PMC11097450 DOI: 10.1186/s12943-024-02019-6] [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: 03/15/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024] Open
Abstract
Peptides and proteins encoded by noncanonical open reading frames (ORFs) of circRNAs have recently been recognized to play important roles in disease progression, but the biological functions and mechanisms of these peptides and proteins are largely unknown. Here, we identified a potential coding circular RNA, circTRIM1, that was upregulated in doxorubicin-resistant TNBC cells by intersecting transcriptome and translatome RNA-seq data, and its expression was correlated with clinicopathological characteristics and poor prognosis in patients with TNBC. CircTRIM1 possesses a functional IRES element along with an 810 nt ORF that can be translated into a novel endogenously expressed protein termed TRIM1-269aa. Functionally, we demonstrated that TRIM1-269aa, which is involved in the biological functions of circTRIM1, promoted chemoresistance and metastasis in TNBC cells both in vitro and in vivo. In addition, we found that TRIM1-269aa can be packaged into exosomes and transmitted between TNBC cells. Mechanistically, TRIM1-269aa enhanced the interaction between MARCKS and calmodulin, thus promoting the calmodulin-dependent translocation of MARCKS, which further initiated the activation of the PI3K/AKT/mTOR pathway. Overall, circTRIM1, which encodes TRIM1-269aa, promoted TNBC chemoresistance and metastasis by enhancing MARCKS translocation and PI3K/AKT/mTOR activation. Our investigation has yielded novel insights into the roles of protein-coding circRNAs and supported circTRIM1/TRIM1-269aa as a novel promising prognostic and therapeutic target for patients with TNBC.
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Affiliation(s)
- Yaming Li
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Zekun Wang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Jingwen Yang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yuhan Sun
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yinqiao He
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yuping Wang
- School of Basic Medicine, Jining Medical College, Jining, Shandong, 272067, China
| | - Xi Chen
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yiran Liang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Ning Zhang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Xiaolong Wang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Wenjing Zhao
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Guohong Hu
- Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Qifeng Yang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
- Research Institute of Breast Cancer, Shandong University, Jinan, Shandong, 250012, China.
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Li Y, Lai J, Ran M, Yi T, Zhou L, Luo J, Liu X, Tang X, Huang M, Xie X, Li H, Yang Y, Zou W, Wu J. Alnustone promotes megakaryocyte differentiation and platelet production via the interleukin-17A/interleukin-17A receptor/Src/RAC1/MEK/ERK signaling pathway. Eur J Pharmacol 2024; 971:176548. [PMID: 38570080 DOI: 10.1016/j.ejphar.2024.176548] [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: 10/31/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
OBJECTIVES Thrombocytopenia is a disease in which the number of platelets in the peripheral blood decreases. It can be caused by multiple genetic factors, and numerous challenges are associated with its treatment. In this study, the effects of alnustone on megakaryocytes and platelets were investigated, with the aim of developing a new therapeutic approach for thrombocytopenia. METHODS Random forest algorithm was used to establish a drug screening model, and alnustone was identified as a natural active compound that could promote megakaryocyte differentiation. The effect of alnustone on megakaryocyte activity was determined using cell counting kit-8. The effect of alnustone on megakaryocyte differentiation was determined using flow cytometry, Giemsa staining, and phalloidin staining. A mouse model of thrombocytopenia was established by exposing mice to X-rays at 4 Gy and was used to test the bioactivity of alnustone in vivo. The effect of alnustone on platelet production was determined using zebrafish. Network pharmacology was used to predict targets and signaling pathways. Western blotting and immunofluorescence staining determined the expression levels of proteins. RESULTS Alnustone promoted the differentiation and maturation of megakaryocytes in vitro and restored platelet production in thrombocytopenic mice and zebrafish. Network pharmacology and western blotting showed that alnustone promoted the expression of interleukin-17A and enhanced its interaction with its receptor, and thereby regulated downstream MEK/ERK signaling and promoted megakaryocyte differentiation. CONCLUSIONS Alnustone can promote megakaryocyte differentiation and platelet production via the interleukin-17A/interleukin-17A receptor/Src/RAC1/MEK/ERK signaling pathway and thus provides a new therapeutic strategy for the treatment of thrombocytopenia.
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Affiliation(s)
- Yueyue Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jia Lai
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China; School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Mei Ran
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Taian Yi
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Ling Zhou
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Jiesi Luo
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China.
| | - Xiaoxi Liu
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Xiaoqin Tang
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Miao Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xiang Xie
- School of Basic Medical Sciences, Public Center of Experimental Technology, Model Animal and Human Disease Research of Luzhou Key Laboratory, Southwest Medical University, Luzhou, China.
| | - Hong Li
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Yan Yang
- Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, 646000, China.
| | - Wenjun Zou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jianming Wu
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China; School of Pharmacy, Southwest Medical University, Luzhou, 646000, China; Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, 646000, China.
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44
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Ferguson S, Jones A, Murray K, Andrew R, Schwessinger B, Borevitz J. Plant genome evolution in the genus Eucalyptus is driven by structural rearrangements that promote sequence divergence. Genome Res 2024; 34:606-619. [PMID: 38589251 PMCID: PMC11146599 DOI: 10.1101/gr.277999.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 03/22/2024] [Indexed: 04/10/2024]
Abstract
Genomes have a highly organized architecture (nonrandom organization of functional and nonfunctional genetic elements within chromosomes) that is essential for many biological functions, particularly gene expression and reproduction. Despite the need to conserve genome architecture, a high level of structural variation has been observed within species. As species separate and diverge, genome architecture also diverges, becoming increasingly poorly conserved as divergence time increases. However, within plant genomes, the processes of genome architecture divergence are not well described. Here we use long-read sequencing and de novo assembly of 33 phylogenetically diverse, wild and naturally evolving Eucalyptus species, covering 1-50 million years of diverging genome evolution to measure genome architectural conservation and describe architectural divergence. The investigation of these genomes revealed that following lineage divergence, genome architecture is highly fragmented by rearrangements. As genomes continue to diverge, the accumulation of mutations and the subsequent divergence beyond recognition of rearrangements become the primary driver of genome divergence. The loss of syntenic regions also contribute to genome divergence but at a slower pace than that of rearrangements. We hypothesize that duplications and translocations are potentially the greatest contributors to Eucalyptus genome divergence.
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Affiliation(s)
- Scott Ferguson
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia;
| | - Ashley Jones
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia;
| | - Kevin Murray
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- Weigel Department, Max Planck Institute for Biology Tübingen, 72076 Tübingen, Germany
| | - Rose Andrew
- Botany & N.C.W. Beadle Herbarium, School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
| | - Benjamin Schwessinger
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Justin Borevitz
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
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Chen K, Litfin T, Singh J, Zhan J, Zhou Y. MARS and RNAcmap3: The Master Database of All Possible RNA Sequences Integrated with RNAcmap for RNA Homology Search. GENOMICS, PROTEOMICS & BIOINFORMATICS 2024; 22:qzae018. [PMID: 38872612 DOI: 10.1093/gpbjnl/qzae018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 09/24/2023] [Accepted: 10/31/2023] [Indexed: 06/15/2024]
Abstract
Recent success of AlphaFold2 in protein structure prediction relied heavily on co-evolutionary information derived from homologous protein sequences found in the huge, integrated database of protein sequences (Big Fantastic Database). In contrast, the existing nucleotide databases were not consolidated to facilitate wider and deeper homology search. Here, we built a comprehensive database by incorporating the non-coding RNA (ncRNA) sequences from RNAcentral, the transcriptome assembly and metagenome assembly from metagenomics RAST (MG-RAST), the genomic sequences from Genome Warehouse (GWH), and the genomic sequences from MGnify, in addition to the nucleotide (nt) database and its subsets in National Center of Biotechnology Information (NCBI). The resulting Master database of All possible RNA sequences (MARS) is 20-fold larger than NCBI's nt database or 60-fold larger than RNAcentral. The new dataset along with a new split-search strategy allows a substantial improvement in homology search over existing state-of-the-art techniques. It also yields more accurate and more sensitive multiple sequence alignments (MSAs) than manually curated MSAs from Rfam for the majority of structured RNAs mapped to Rfam. The results indicate that MARS coupled with the fully automatic homology search tool RNAcmap will be useful for improved structural and functional inference of ncRNAs and RNA language models based on MSAs. MARS is accessible at https://ngdc.cncb.ac.cn/omix/release/OMIX003037, and RNAcmap3 is accessible at http://zhouyq-lab.szbl.ac.cn/download/.
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Affiliation(s)
- Ke Chen
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
- Peking University Shenzhen Graduate School, Shenzhen 518055, China
- University of Science and Technology of China, Hefei 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215123, China
| | - Thomas Litfin
- Institute for Glycomics, Griffith University, Southport, QLD 4222, Australia
| | - Jaswinder Singh
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
| | - Jian Zhan
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
| | - Yaoqi Zhou
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
- Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute for Glycomics, Griffith University, Southport, QLD 4222, Australia
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Marrero-Rodríguez D, Moscona-Nissan A, Sidauy-Adissi J, Haidenberg-David F, Jonguitud-Zumaya E, de Jesus Chávez-Vera L, Martinez-Mendoza F, Taniguchi-Ponciano K, Mercado M. The molecular biology of sporadic acromegaly. Best Pract Res Clin Endocrinol Metab 2024; 38:101895. [PMID: 38641464 DOI: 10.1016/j.beem.2024.101895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
GH-secreting tumors represent 15 % to 20 % of all pituitary neuroendocrine tumors (pitNETs), of which 95 % occur in a sporadic context, without an identifiable inherited cause. Recent multi-omic approaches have characterized the epigenomic, genomic, transcriptomic, proteomic and kynomic landscape of pituitary tumors. Transcriptomic analysis has allowed us to discover specific transcription factors driving the differentiation of pituitary tumors and gene expression patterns. GH-secreting, along with PRL- and TSH-secreting pitNETs are driven by POU1F1; ACTH-secreting tumors are determined by TBX19; and non-functioning tumors, which are predominantly of gonadotrope differentiation are conditioned by NR5A1. Upregulation of certain miRNAs, such as miR-107, is associated with tumor progression, while downregulation of others, like miR-15a and miR-16-1, correlates with tumor size reduction. Additionally, miRNA expression profiles are linked to treatment resistance and clinical outcomes, providing insights into potential therapeutic targets. Specific somatic mutations in GNAS, PTTG1, GIPR, HGMA2, MAST and somatic variants associated with cAMP, calcium signaling, and ATP pathways have also been associated with the development of acromegaly. This review focuses on the oncogenic mechanisms by which sporadic acromegaly can develop, covering a complex series of molecular alterations that ultimately alter the balance between proliferation and apoptosis, and dysregulated hormonal secretion.
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Affiliation(s)
- Daniel Marrero-Rodríguez
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Alberto Moscona-Nissan
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Jessica Sidauy-Adissi
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Fabian Haidenberg-David
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Esbeydi Jonguitud-Zumaya
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Leonel de Jesus Chávez-Vera
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Florencia Martinez-Mendoza
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico
| | - Keiko Taniguchi-Ponciano
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico.
| | - Moises Mercado
- Endocrine Research Unit, Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Ciudad de Mexico 06720, Mexico.
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Arakal BS, Rowlands RS, McCarthy M, Whitworth DE, Maddocks SE, James PE, Livingstone PG. Corallococcus senghenyddensis sp. nov., a myxobacterium with potent antimicrobial activity. J Appl Microbiol 2024; 135:lxae102. [PMID: 38649930 DOI: 10.1093/jambio/lxae102] [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: 03/11/2024] [Revised: 04/10/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
AIM Corallococcus species are diverse in the natural environment with 10 new Corallococcus species having been characterized in just the last 5 years. As well as being an abundant myxobacterial genus, they produce several secondary metabolites, including Corallopyronin, Corramycin, Coralmycin, and Corallorazine. We isolated a novel strain Corallococcus spp RDP092CA from soil in South Wales, UK, using Candida albicans as prey bait and characterized its predatory activities against pathogenic bacteria and yeast. METHODS AND RESULTS The size of the RDP092CA genome was 8.5 Mb with a G + C content of 71.4%. Phylogenetically, RDP092CA is closely related to Corallococcus interemptor, C. coralloides, and C. exiguus. However, genome average nucleotide identity and digital DNA-DNA hybridization values are lower than 95% and 70% when compared to those type strains, implying that it belongs to a novel species. The RDP092CA genome harbours seven types of biosynthetic gene clusters (BGCs) and 152 predicted antimicrobial peptides. In predation assays, RDP092CA showed good predatory activity against Escherichia coli, Pseudomonas aeruginosa, Citrobacter freundii, and Staphylococcus aureus but not against Enterococcus faecalis. It also showed good antibiofilm activity against all five bacteria in biofilm assays. Antifungal activity against eight Candida spp. was variable, with particularly good activity against Meyerozyma guillermondii DSM 6381. Antimicrobial peptide RDP092CA_120 exhibited potent antibiofilm activity with >50% inhibition and >60% dispersion of biofilms at concentrations down to 1 μg/ml. CONCLUSIONS We propose that strain RDP092CA represents a novel species with promising antimicrobial activities, Corallococcus senghenyddensis sp. nov. (=NBRC 116490T =CCOS 2109T), based on morphological, biochemical, and genomic features.
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Affiliation(s)
- Benita S Arakal
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
| | - Richard S Rowlands
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
| | - Michael McCarthy
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
| | - David E Whitworth
- Department of Life Sciences, Aberystwyth University, Aberystwyth SY23 3FL, United Kingdom
| | - Sarah E Maddocks
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
| | - Philip E James
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
| | - Paul G Livingstone
- School of Sports and Health Sciences, Department of Biomedical Sciences, Cardiff Metropolitan University, Llandaff Campus, Cardiff CF5 2YB, United Kingdom
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48
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Huang W, Xu B, Guo W, Huang Z, Li Y, Wu W. De novo genome assembly and population genomics of a shrub tree Barthea barthei (Hance) krass provide insights into the adaptive color variations. FRONTIERS IN PLANT SCIENCE 2024; 15:1365686. [PMID: 38751846 PMCID: PMC11094225 DOI: 10.3389/fpls.2024.1365686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/19/2024] [Indexed: 05/18/2024]
Abstract
Flower color is a classic example of an ecologically important trait under selection in plants. Understanding the genetic mechanisms underlying shifts in flower color can provide key insights into ecological speciation. In this study, we investigated the genetic basis of flower color divergence in Barthea barthei, a shrub tree species exhibiting natural variation in flower color. We assembled a high-quality genome assembly for B. barthei with a contig N50 of 2.39 Mb and a scaffold N50 of 16.21 Mb. The assembly was annotated with 46,430 protein-coding genes and 1,560 non-coding RNAs. Genome synteny analysis revealed two recent tetraploidization events in B. barthei, estimated to have occurred at approximately 17 and 63 million years ago. These tetraploidization events resulted in massive duplicated gene content, with over 70% of genes retained in collinear blocks. Gene family members of the core regulators of the MBW complex were significantly expanded in B. barthei compared to Arabidopsis, suggesting that these duplications may have provided raw genetic material for the evolution of novel regulatory interactions and the diversification of anthocyanin pigmentation. Transcriptome profiling of B. barthei flowers revealed differential expression of 9 transcription factors related to anthocyanin biosynthesis between the two ecotypes. Six of these differentially expressed transcription factors were identified as high-confidence candidates for adaptive evolution based on positive selection signals. This study provides insights into the genetic basis of flower color divergence and the evolutionary mechanisms underlying ecological adaptation in plants.
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Affiliation(s)
- Weicheng Huang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
- South China Botanical Garden, Chinese Academy of Science, Guangzhou, China
| | - Bin Xu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, China
| | - Wei Guo
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zecheng Huang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Yongquan Li
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Wei Wu
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
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49
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Feng X, Zheng J, Irisarri I, Yu H, Zheng B, Ali Z, de Vries S, Keller J, Fürst-Jansen JMR, Dadras A, Zegers JMS, Rieseberg TP, Dhabalia Ashok A, Darienko T, Bierenbroodspot MJ, Gramzow L, Petroll R, Haas FB, Fernandez-Pozo N, Nousias O, Li T, Fitzek E, Grayburn WS, Rittmeier N, Permann C, Rümpler F, Archibald JM, Theißen G, Mower JP, Lorenz M, Buschmann H, von Schwartzenberg K, Boston L, Hayes RD, Daum C, Barry K, Grigoriev IV, Wang X, Li FW, Rensing SA, Ben Ari J, Keren N, Mosquna A, Holzinger A, Delaux PM, Zhang C, Huang J, Mutwil M, de Vries J, Yin Y. Genomes of multicellular algal sisters to land plants illuminate signaling network evolution. Nat Genet 2024; 56:1018-1031. [PMID: 38693345 PMCID: PMC11096116 DOI: 10.1038/s41588-024-01737-3] [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: 04/21/2023] [Accepted: 03/25/2024] [Indexed: 05/03/2024]
Abstract
Zygnematophyceae are the algal sisters of land plants. Here we sequenced four genomes of filamentous Zygnematophyceae, including chromosome-scale assemblies for three strains of Zygnema circumcarinatum. We inferred traits in the ancestor of Zygnematophyceae and land plants that might have ushered in the conquest of land by plants: expanded genes for signaling cascades, environmental response, and multicellular growth. Zygnematophyceae and land plants share all the major enzymes for cell wall synthesis and remodifications, and gene gains shaped this toolkit. Co-expression network analyses uncover gene cohorts that unite environmental signaling with multicellular developmental programs. Our data shed light on a molecular chassis that balances environmental response and growth modulation across more than 600 million years of streptophyte evolution.
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Affiliation(s)
- Xuehuan Feng
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jinfang Zheng
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Zhejiang Lab, Hangzhou, China
| | - Iker Irisarri
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
- Campus Institute Data Science, University of Goettingen, Goettingen, Germany
- Section Phylogenomics, Centre for Molecular biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change, Zoological Museum Hamburg, Hamburg, Germany
| | - Huihui Yu
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE, USA
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Science, Yunnan, China
| | - Bo Zheng
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Zahin Ali
- Nanyang Technological University, School of Biological Sciences, Singapore, Singapore
| | - Sophie de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet-Tolosan, France
| | - Janine M R Fürst-Jansen
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Armin Dadras
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Jaccoline M S Zegers
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Tim P Rieseberg
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Amra Dhabalia Ashok
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Tatyana Darienko
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Maaike J Bierenbroodspot
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Lydia Gramzow
- University of Jena, Matthias Schleiden Institute/Genetics, Jena, Germany
| | - Romy Petroll
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Department of Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Fabian B Haas
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Department of Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Noe Fernandez-Pozo
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Institute for Mediterranean and Subtropical Horticulture 'La Mayora', Málaga, Spain
| | - Orestis Nousias
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Tang Li
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Elisabeth Fitzek
- Computational Biology, Department of Biology, Center for Biotechnology, Bielefeld University, Bielefeld, Germany
| | - W Scott Grayburn
- Northern Illinois University, Molecular Core Lab, Department of Biological Sciences, DeKalb, IL, USA
| | - Nina Rittmeier
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Innsbruck, Austria
| | - Charlotte Permann
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Innsbruck, Austria
| | - Florian Rümpler
- University of Jena, Matthias Schleiden Institute/Genetics, Jena, Germany
| | - John M Archibald
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Günter Theißen
- University of Jena, Matthias Schleiden Institute/Genetics, Jena, Germany
| | - Jeffrey P Mower
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE, USA
| | - Maike Lorenz
- University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Experimental Phycology and Culture Collection of Algae at Goettingen University, Goettingen, Germany
| | - Henrik Buschmann
- University of Applied Sciences Mittweida, Faculty of Applied Computer Sciences and Biosciences, Section Biotechnology and Chemistry, Molecular Biotechnology, Mittweida, Germany
| | - Klaus von Schwartzenberg
- Universität Hamburg, Institute of Plant Science and Microbiology, Microalgae and Zygnematophyceae Collection Hamburg and Aquatic Ecophysiology and Phycology, Hamburg, Germany
| | - Lori Boston
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Richard D Hayes
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Chris Daum
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Kerrie Barry
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Igor V Grigoriev
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA, USA
| | - Xiyin Wang
- North China University of Science and Technology, Tangshan, China
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA
- Plant Biology Section, Cornell University, Ithaca, NY, USA
| | - Stefan A Rensing
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- University of Freiburg, Centre for Biological Signalling Studies (BIOSS), Freiburg, Germany
| | - Julius Ben Ari
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot, Israel
| | - Noa Keren
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot, Israel
| | - Assaf Mosquna
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot, Israel
| | - Andreas Holzinger
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Innsbruck, Austria
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet-Tolosan, France
| | - Chi Zhang
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE, USA
- University of Nebraska-Lincoln, School of Biological Sciences, Lincoln, NE, USA
| | - Jinling Huang
- Department of Biology, East Carolina University, Greenville, NC, USA
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Marek Mutwil
- Nanyang Technological University, School of Biological Sciences, Singapore, Singapore
| | - Jan de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany.
- Campus Institute Data Science, University of Goettingen, Goettingen, Germany.
- University of Goettingen, Goettingen Center for Molecular Biosciences, Goettingen, Germany.
| | - Yanbin Yin
- Nebraska Food for Health Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA.
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50
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Feng Z, Zheng Y, Jiang Y, Pei J, Huang L. Phylogenetic relationships, selective pressure and molecular markers development of six species in subfamily Polygonoideae based on complete chloroplast genomes. Sci Rep 2024; 14:9783. [PMID: 38684694 PMCID: PMC11059183 DOI: 10.1038/s41598-024-58934-7] [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: 08/08/2023] [Accepted: 04/04/2024] [Indexed: 05/02/2024] Open
Abstract
The subfamily Polygonoideae encompasses a diverse array of medicinal and horticultural plants that hold significant economic value. However, due to the lack of a robust taxonomy based on phylogenetic relationships, the classification within this family is perplexing, and there is also a scarcity of reports on the chloroplast genomes of many plants falling under this classification. In this study, we conducted a comprehensive analysis by sequencing and characterizing the complete chloroplast genomes of six Polygonoideae plants, namely Pteroxygonum denticulatum, Pleuropterus multiflorus, Pleuropterus ciliinervis, Fallopia aubertii, Fallopia dentatoalata, and Fallopia convolvulus. Our findings revealed that these six plants possess chloroplast genomes with a typical quadripartite structure, averaging 162,931 bp in length. Comparative chloroplast analysis, codon usage analysis, and repetitive sequence analysis demonstrated a high level of conservation within the chloroplast genomes of these plants. Furthermore, phylogenetic analysis unveiled a distinct clade occupied by P. denticulatum, while P. ciliinrvis displayed a closer relationship to the three plants belonging to the Fallopia genus. Selective pressure analysis based on maximum likelihood trees showed that a total of 14 protein-coding genes exhibited positive selection, with psbB and ycf1 having the highest number of positive amino acid sites. Additionally, we identified four molecular markers, namely petN-psbM, psal-ycf4, ycf3-trnS-GGA, and trnL-UAG-ccsA, which exhibit high variability and can be utilized for the identification of these six plants.
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Affiliation(s)
- Zhan Feng
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Yan Zheng
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Yuan Jiang
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Jin Pei
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China.
| | - Linfang Huang
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
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