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Zhang G, Huang C, Wang R, Guo J, Qin Y, Lv S. Chondroprotective effects of Apolipoprotein D in knee osteoarthritis mice through the PI3K/AKT/mTOR signaling pathway. Int Immunopharmacol 2024; 133:112005. [PMID: 38626543 DOI: 10.1016/j.intimp.2024.112005] [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: 02/14/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/18/2024]
Abstract
BACKGROUND Because the pathophysiology of osteoarthritis (OA) has not been fully elucidated, targeted treatments are lacking. In this study, we assessed the role and underlying mechanism apolipoprotein D (APOD) on the development of OA. METHODS To establish an in vitro OA model, we extracted primary chondrocytes from the cartilage of C57BL/6 mice and stimulated the chondrocytes with IL-1β. After APOD intervention or incubation with an overexpressing plasmid, we detected inflammatory-related markers using RT-qPCR, Western blotting, and ELISA. To detect apoptosis and autophagy-related markers, we used flow cytometry, immunofluorescence, and transmission electron microscopy (TEM). Finally, we measured the level of oxidative stress. We also used RNA-seq to identify the APOD-regulated downstream signaling pathways. We used an in vivo mice OA model of the anterior cruciate ligament transection (ACLT) and administered intra-articular adenovirus overexpressing APOD. To examine cartilage damage severity, we used immunohistochemical analysis (IHC), micro-CT, scanning electron microscopy (SEM), and Safranin O-fast green staining. RESULTS Our results showed that APOD inhibited chondrocyte inflammation, degeneration, and apoptosis induced by IL-1β. Additionally, APOD reversed autophagy inhibition and oxidative stress and also blocked activation of the PI3K/AKT/mTOR signaling pathway induced by IL-1β. Finally, overexpression of the APOD gene through adenovirus was sufficient to mitigate OA progression. CONCLUSIONS Our findings revealed that APOD had a chondroprotective role in OA progression by the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Gang Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; Department of Orthopedics, Harbin First Hospital, Harbin, Heilongjiang Province, China; Future Medical Laboratory of the Second Affiliated Hospital of Harbin Medical University, China
| | - Chao Huang
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ren Wang
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jiangrong Guo
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yong Qin
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Songcen Lv
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
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2
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Lu JB, Ren PP, Li Q, He F, Xu ZT, Wang SN, Chen JP, Li JM, Zhang CX. The evolution and functional divergence of 10 Apolipoprotein D-like genes in Nilaparvata lugens. INSECT SCIENCE 2024; 31:91-105. [PMID: 37334667 DOI: 10.1111/1744-7917.13216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 04/16/2023] [Accepted: 04/22/2023] [Indexed: 06/20/2023]
Abstract
Apolipoprotein D (ApoD), a member of the lipocalin superfamily of proteins, is involved in lipid transport and stress resistance. Whereas only a single copy of the ApoD gene is found in humans and some other vertebrates, there are typically several ApoD-like genes in insects. To date, there have been relatively few studies that have examined the evolution and functional differentiation of ApoD-like genes in insects, particularly hemi-metabolous insects. In this study, we identified 10 ApoD-like genes (NlApoD1-10) with distinct spatiotemporal expression patterns in Nilaparvata lugens (BPH), which is an important pest of rice. NlApoD1-10 were found to be distributed on 3 chromosomes in a tandem array of NlApoD1/2, NlApoD3-5, and NlApoD7/8, and show sequence and gene structural divergence in the coding regions, indicating that multiple gene duplication events occurred during evolution. Phylogenetic analysis revealed that NlApoD1-10 can be clustered into 5 clades, with NlApoD3-5 and NlApoD7/8 potentially evolving exclusively in the Delphacidae family. Functional screening using an RNA interference approach revealed that only NlApoD2 was essential for BPH development and survival, whereas NlApoD4/5 are highly expressed in testes, and might play roles in reproduction. Moreover, stress response analysis revealed that NlApoD3-5/9, NlApoD3-5, and NlApoD9 were up-regulated after treatment with lipopolysaccharide, H2 O2 , and ultraviolet-C, respectively, indicating their potential roles in stress resistance.
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Affiliation(s)
- Jia-Bao Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Peng-Peng Ren
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Qiao Li
- Technology Center of Wuhan Customs District, Hubei, China
- Institute of Insect Science, Zhejiang University, Hangzhou, China
| | - Fang He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Zhong-Tian Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Sai-Nan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Jian-Ping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Jun-Min Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
| | - Chuan-Xi Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang Province, China
- Institute of Insect Science, Zhejiang University, Hangzhou, China
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3
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Fyfe-Desmarais G, Desmarais F, Rassart É, Mounier C. Apolipoprotein D in Oxidative Stress and Inflammation. Antioxidants (Basel) 2023; 12:antiox12051027. [PMID: 37237893 DOI: 10.3390/antiox12051027] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Apolipoprotein D (ApoD) is lipocalin able to bind hydrophobic ligands. The APOD gene is upregulated in a number of pathologies, including Alzheimer's disease, Parkinson's disease, cancer, and hypothyroidism. Upregulation of ApoD is linked to decreased oxidative stress and inflammation in several models, including humans, mice, Drosophila melanogaster and plants. Studies suggest that the mechanism through which ApoD modulates oxidative stress and regulate inflammation is via its capacity to bind arachidonic acid (ARA). This polyunsaturated omega-6 fatty acid can be metabolised to generate large variety of pro-inflammatory mediators. ApoD serves as a sequester, blocking and/or altering arachidonic metabolism. In recent studies of diet-induced obesity, ApoD has been shown to modulate lipid mediators derived from ARA, but also from eicosapentaenoic acid and docosahexaenoic acid in an anti-inflammatory way. High levels of ApoD have also been linked to better metabolic health and inflammatory state in the round ligament of morbidly obese women. Since ApoD expression is upregulated in numerous diseases, it might serve as a therapeutic agent against pathologies aggravated by OS and inflammation such as many obesity comorbidities. This review will present the most recent findings underlying the central role of ApoD in the modulation of both OS and inflammation.
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Affiliation(s)
- Guillaume Fyfe-Desmarais
- Laboratory of Metabolism of Lipids, Centre d'Excellence en Recherche sur les Maladies Orphelines-Fondation Courtois (CERMO-FC), Department of Biological Sciences, University of Quebec in Montreal (UQAM), 141 Av. du Président-Kennedy, Montreal, QC H2X 1Y4, Canada
| | - Fréderik Desmarais
- Department of Medecine, Faculty of Medecine, Institut Universitaire de Cardiologie et de Pneumologie de Québec, 1050 Av. de la Médecine, Québec City, QC G1V 0A6, Canada
| | - Éric Rassart
- Laboratory of Metabolism of Lipids, Centre d'Excellence en Recherche sur les Maladies Orphelines-Fondation Courtois (CERMO-FC), Department of Biological Sciences, University of Quebec in Montreal (UQAM), 141 Av. du Président-Kennedy, Montreal, QC H2X 1Y4, Canada
| | - Catherine Mounier
- Laboratory of Metabolism of Lipids, Centre d'Excellence en Recherche sur les Maladies Orphelines-Fondation Courtois (CERMO-FC), Department of Biological Sciences, University of Quebec in Montreal (UQAM), 141 Av. du Président-Kennedy, Montreal, QC H2X 1Y4, Canada
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4
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Hao B, Li J, Sun C, Huang J. Label-free proteomics analysis on the envelope of budded viruses of Bombyx mori nucleopolyhedrovirus harboring differential localized GP64. Virus Genes 2023; 59:260-275. [PMID: 36512182 DOI: 10.1007/s11262-022-01961-1] [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: 09/04/2022] [Accepted: 12/03/2022] [Indexed: 12/15/2022]
Abstract
Bombyx mori nucleopolyhedrovirus (BmNPV) GP64 is the key membrane fusion protein that mediates budded virus (BV) infection. We recently reported that BmNPV GP64's n-region of signal peptide (SP) blocked the SP-cleavage and mediated GP64 localization on the plasma membrane (PM); n-region (SP∆nGP64) absence caused GP64 intracellular localization, however, SP∆nGP64 was still incorporated into virion to generate BVs with lower infectivity. To better understand the biogenesis of the envelope of BmNPV BV, we conducted a label-free ESI mass spectrometry analysis of the envelope of purified BVs harboring PM localized GP64 or intracellular localized SP∆nGP64. The results indicated that 31 viral proteins were identified on the envelope, among which 15 were reported in other viruses. The other 16 proteins were first reported in BmNPV BV, including the BmNPV-specific protein BRO-A and proteins associated with vesicle transportation. Six proteins with significant intensity differences were detected in virions with differential localized GP64, and five specific proteins were identified in virions with GP64. Meanwhile, we identified 81 host proteins on the envelope, and seven lipoproteins were first identified in baculovirus virion; other 74 proteins are involved in the cytoskeleton, DNA-binding, vesicle transport, etc. In the meantime, eight and five specific host proteins were, respectively, identified in GP64 and SP∆nGP64's virions. The two virions shared 68 common host proteins, and 8 proteins were identified on their envelopes with a significant difference. This study provides new insight into the protein composition of BmNPV BV and a clue for further investigation of the budding mechanism of BmNPV.
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Affiliation(s)
- Bifang Hao
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, People's Republic of China
- Key Laboratory of Genetic Improvement of Sericulture in the Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, People's Republic of China
| | - Jingfeng Li
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, People's Republic of China
| | - Congcong Sun
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, People's Republic of China
| | - Jinshan Huang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, People's Republic of China.
- Key Laboratory of Genetic Improvement of Sericulture in the Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, People's Republic of China.
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5
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Zhou YY, Jin Y, Liu SQ, Xu SL, Huang YX, Xu YS, Shi LG, Wang HB. Genome-wide identification and comparative analysis of lipocalin families in Lepidoptera with an emphasis on Bombyx mori. INSECT SCIENCE 2023; 30:15-30. [PMID: 35343650 DOI: 10.1111/1744-7917.13039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Lipocalins exhibit functional diversity, including roles in retinol transport, invertebrate cryptic coloration, and stress response. However, genome-wide identification and characterization of lipocalin in the insect lineage have not been thoroughly explored. Here, we found that a lineage-specific expansion of the lipocalin genes in Lepidoptera occurred in large part due to tandem duplication events and several lipocalin genes involving insect coloration were expanded more via tandem duplication in butterflies. A comparative analysis of conserved motifs showed both conservation and divergence of lepidopteran lipocalin family protein structures during evolution. We observe dynamic changes in tissue expression preference of paralogs in Bombyx mori, suggesting differential contribution of paralogs to specific organ functions during evolution. Subcellular localization experiments revealed that lipocalins localize to the cytoplasm, nuclear membrane, or nucleus in BmN cells. Moreover, several lipocalin genes exhibited divergent responses to abiotic and biotic stresses, and 1 lipocalin gene was upregulated by 300 fold in B. mori. These results suggest that lipocalins act as signaling components in defense responses by mediating crosstalk between abiotic and biotic stress responses. This study deepens our understanding of the comprehensive characteristics of lipocalins in insects.
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Affiliation(s)
- Yan-Yan Zhou
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yue Jin
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shuai-Qi Liu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shi-Liang Xu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yu-Xin Huang
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yu-Song Xu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Lian-Gen Shi
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Hua-Bing Wang
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
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6
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Dai X, Kiuchi T, Zhou Y, Jia S, Xu Y, Katsuma S, Shimada T, Wang H. Horizontal Gene Transfer and Gene Duplication of β-Fructofuranosidase Confer Lepidopteran Insects Metabolic Benefits. Mol Biol Evol 2021; 38:2897-2914. [PMID: 33739418 PMCID: PMC8233494 DOI: 10.1093/molbev/msab080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Horizontal gene transfer (HGT) is a potentially critical source of material for ecological adaptation and the evolution of novel genetic traits. However, reports on posttransfer duplication in organism genomes are lacking, and the evolutionary advantages conferred on the recipient are generally poorly understood. Sucrase plays an important role in insect physiological growth and development. Here, we performed a comprehensive analysis of the evolution of insect β-fructofuranosidase transferred from bacteria via HGT. We found that posttransfer duplications of β-fructofuranosidase were widespread in Lepidoptera and sporadic occurrences of β-fructofuranosidase were found in Coleoptera and Hymenoptera. β-fructofuranosidase genes often undergo modifications, such as gene duplication, differential gene loss, and changes in mutation rates. Lepidopteran β-fructofuranosidase gene (SUC) clusters showed marked divergence in gene expression patterns and enzymatic properties in Bombyx mori (moth) and Papilio xuthus (butterfly). We generated SUC1 mutations in B. mori using CRISPR/Cas9 to thoroughly examine the physiological function of SUC. BmSUC1 mutant larvae were viable but displayed delayed growth and reduced sucrase activities that included susceptibility to the sugar mimic alkaloid found in high concentrations in mulberry. BmSUC1 served as a critical sucrase and supported metabolic homeostasis in the larval midgut and silk gland, suggesting that gene transfer of β-fructofuranosidase enhanced the digestive and metabolic adaptation of lepidopteran insects. These findings highlight not only the universal function of β-fructofuranosidase with a link to the maintenance of carbohydrate metabolism but also an underexplored function in the silk gland. This study expands our knowledge of posttransfer duplication and subsequent functional diversification in the adaptive evolution and lineage-specific adaptation of organisms.
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Affiliation(s)
- Xiangping Dai
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Takashi Kiuchi
- Laboratory of Insect Genetics and Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yanyan Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shunze Jia
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yusong Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Susumu Katsuma
- Laboratory of Insect Genetics and Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Toru Shimada
- Laboratory of Insect Genetics and Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Department of Life Science, Faculty of Science, Gakushuin University, Tokyo, Japan
| | - Huabing Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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7
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Qiao JW, Fan YL, Wu BJ, Wang D, Liu TX. Involvement of apolipoprotein D in desiccation tolerance and adult fecundity of Acyrthosiphon pisum. JOURNAL OF INSECT PHYSIOLOGY 2020; 127:104160. [PMID: 33137328 DOI: 10.1016/j.jinsphys.2020.104160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
Apolipoprotein D (ApoD) is a lipocalin superfamily member that plays important roles in the transport of small hydrophobic molecules, lipid metabolism, and stress resistance. Cuticular hydrocarbons are the principal components of the epicuticular lipid layer and play a critical role in water retention against environmental desiccation stress; however, the mechanism underlying the role of ApoD in insect desiccation tolerance has not yet been elucidated. Here, we report the molecular constitution, functional analysis, and phylogenetic relationship of the ApoD gene in Acyrthosiphon pisum (ApApoD). We found that ApApoD was transcribed throughout the life cycle of A. pisum, but was prominently expressed in the embryonic period and abdominal cuticle. In addition, we optimized the dose and silencing duration of RNAi, observing that RNAi against ApApoD significantly reduced the levels of both internal and cuticular hydrocarbons and adult fecundity. Moreover, cuticular hydrocarbon deficiency increased the sensitivity of aphids to desiccation stress and reduced their survival time, while desiccation stress significantly increased ApApoD expression. Together, it is confirmed that ApApoD participates in regulating cuticular hydrocarbon content of aphids under desiccation stress and is crucial for aphid reproduction. Therefore, the ApApoD gene of A. pisum may be a potential target for RNAi-based insect pest control due to its involvement in cuticular hydrocarbon accumulation and reproduction.
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Affiliation(s)
- Jian-Wen Qiao
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Yong-Liang Fan
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Bing-Jin Wu
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Dun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Tong-Xian Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Zhou Y, Li Y, Li X, Li R, Xu Y, Shi L, Wang H. Apolipoprotein D in Lepidoptera: Evolution and functional divergence. Biochem Biophys Res Commun 2020; 526:472-478. [PMID: 32234238 DOI: 10.1016/j.bbrc.2020.03.112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 03/19/2020] [Indexed: 11/27/2022]
Abstract
Apolipoprotein D (ApoD) plays important roles in response to injury, cell differentiation, lifespan extension, and increasing stress resistance. However, the evolutionary mechanism of ApoD in insects remains largely unelucidated. We conducted a comprehensive study of the molecular evolution and functional divergence of ApoD in insects. A type I functional divergence analysis revealed significant differences among insect ApoD homologs, suggesting that they underwent functional divergence. We demonstrated that lepidopteran insects have three genes that are close homologs to ApoD and show divergences in sequence, expression pattern, and protein-protein interaction. Furthermore, positive selection was detected in lepidopteran ApoD2, and positively selected sites were located around the pocket and loop domains, which might result in conformational changes and affect binding properties. Moreover, we showed that the three ApoDs in Bombyx mori were significantly regulated by environmental stress. Thus, this work illustrates the dialectical relationship between genetic diversity and functional conservation of ApoD and highlights its unique functions in the stress response of Lepidoptera.
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Affiliation(s)
- Yanyan Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yinghui Li
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaotong Li
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Rongqiao Li
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yusong Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Liangen Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Huabing Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.
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9
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Dai X, Li R, Li X, Liang Y, Gao Y, Xu Y, Shi L, Zhou Y, Wang H. Gene duplication and subsequent functional diversification of sucrose hydrolase in Papilio xuthus. INSECT MOLECULAR BIOLOGY 2019; 28:862-872. [PMID: 31155808 DOI: 10.1111/imb.12603] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 04/12/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
Sucrose is the main product of photosynthesis in plants, providing a rich carbon and energy source for the physiological growth and development of insects. In a previous study, we identified a novel sucrose hydrolase (SUH) in the larval midgut of moths. Intriguingly, there are two copies of Suh, namely Suh1 and Suh2, in several species of butterflies. However, the biochemical characteristics of SUHs in butterflies remain unclear. In this study, we found that this duplication and subsequent diversification produced two Suh genes in Papilio xuthus. These two PxSuh genes were significantly divergent in terms of their expression pattern and enzyme properties. PxSuh messenger RNA expression was highest during the larval stage, reduced in the prepupal and pupal stages and, for PxSuh1, slightly increased again in the adult. The observed levels of PxSuh2 were overall below those of PxSuh1 amongst the development stages examined. Compared with PxSUH2, which has maintained the original gene function of maltose hydrolysis, PxSUH1 exhibits substrate specificity for sucrose with an optimum enzyme activity occurring at an alkaline pH. The data show that PxSuh1 is evolutionarily adapted for effective functioning in an alkaline digestive system. Furthermore, we find that functional diversification of Suh facilitates P. xuthus to digestive carbohydrate of host plants. Thus, our findings offer new insights into the ecological and evolutionary adaptation of digestive enzymes in butterflies.
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Affiliation(s)
- X Dai
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - R Li
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - X Li
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Y Liang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Y Gao
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Y Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - L Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Y Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - H Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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10
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Zhu F, Li D, Song D, Xia H, Liu X, Yao Q, Chen K. Precision mapping of N- and O-glycoproteins in viral resistant and susceptible strains of Bombyx mori. J Invertebr Pathol 2019; 167:107250. [DOI: 10.1016/j.jip.2019.107250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 10/26/2022]
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11
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Rezende TMT, Rezende AM, Luz Wallau G, Santos Vasconcelos CR, de-Melo-Neto OP, Silva-Filha MHNL, Romão TP. A differential transcriptional profile by Culex quinquefasciatus larvae resistant to Lysinibacillus sphaericus IAB59 highlights genes and pathways associated with the resistance phenotype. Parasit Vectors 2019; 12:407. [PMID: 31429782 PMCID: PMC6702717 DOI: 10.1186/s13071-019-3661-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 08/09/2019] [Indexed: 01/17/2023] Open
Abstract
Background The study of the mechanisms by which larvae of the Culex quinquefasciatus mosquito survive exposure to the entomopathogen Lysinibacillus sphaericus has benefited substantially from the generation of laboratory-selected colonies resistant to this bacterium. One such colony, RIAB59, was selected after regular long-term exposure of larvae to the L. sphaericus IAB59 strain. This strain is characterized by its ability to produce the well known Binary (Bin) toxin, and the recently characterized Cry48Aa/Cry49Aa toxin, able to kill Bin-resistant larvae. Resistance to Bin is associated with the depletion of its receptor, Cqm1 α-glucosidase, from the larvae midgut. This study aimed to identify novel molecules and pathways associated with survival of the RIAB59 larvae and the resistance phenotype. Methods A transcriptomic approach and bioinformatic tools were used to compare the profiles derived from the midguts of larvae resistant and susceptible to L. sphaericus IAB59. Results The RNA-seq profiles identified 1355 differentially expressed genes (DEGs), with 673 down- and 682 upregulated transcripts. One of the most downregulated DEGs was cqm1, which validates the approach. Other strongly downregulated mRNAs encode the enzyme pantetheinase, apolipoprotein D, lipases, heat-shock proteins and a number of lesser known and hypothetical polypeptides. Among the upregulated DEGs, the top most encodes a peroxisomal enzyme involved in lipid metabolism, while others encode enzymes associated with juvenile hormone synthesis, ion channels, DNA binding proteins and defense polypeptides. Further analyses confirmed a strong downregulation of several enzymes involved in lipid catabolism while the assignment of DEGs into metabolic pathways highlighted the upregulation of those related to DNA synthesis and maintenance, confirmed by their clustering into related protein networks. Several other pathways were also identified with mixed profiles of down- and upregulated transcripts. Quantitative RT-PCR confirmed the changes in levels seen for selected mRNAs. Conclusions Our transcriptome-wide dataset revealed that the RIAB59 colony, found to be substantially more resistant to Bin than to the Cry48Aa/Cry49Aa toxin, developed a differential expression profile as well as metabolic features co-selected during the long-term adaptation to IAB59 and that are most likely linked to Bin resistance.![]() Electronic supplementary material The online version of this article (10.1186/s13071-019-3661-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Antonio Mauro Rezende
- Instituto Aggeu Magalhães-FIOCRUZ, Av. Moraes Rego s/n Cidade Universitária, Recife, PE, 50740-465, Brazil
| | - Gabriel Luz Wallau
- Instituto Aggeu Magalhães-FIOCRUZ, Av. Moraes Rego s/n Cidade Universitária, Recife, PE, 50740-465, Brazil
| | | | | | | | - Tatiany Patrícia Romão
- Instituto Aggeu Magalhães-FIOCRUZ, Av. Moraes Rego s/n Cidade Universitária, Recife, PE, 50740-465, Brazil.
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Hippocampal Up-Regulation of Apolipoprotein D in a Rat Model of Maternal Hypo- and Hyperthyroidism: Implication of Oxidative Stress. Neurochem Res 2019; 44:2190-2201. [DOI: 10.1007/s11064-019-02859-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/08/2019] [Accepted: 08/09/2019] [Indexed: 01/19/2023]
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