1
|
Abbas MN, Gul I, Khosravi Z, Amarchi JI, Ye X, Yu L, Siyuan W, Cui H. Molecular characterization, immune functions and DNA protective effects of peroxiredoxin-1 gene in Antheraea pernyi. Mol Immunol 2024; 170:76-87. [PMID: 38640818 DOI: 10.1016/j.molimm.2024.04.006] [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: 10/25/2023] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Abstract
Peroxiredoxins are antioxidant proteins that detoxify peroxynitrite, hydrogen peroxide, and organic hydroperoxides, impacting various physiological processes such as immune responses, apoptosis, cellular homeostasis, and so on. In the present study, we identified and characterized peroxiredoxin 1 from Antheraea pernyi (thereafter designated as ApPrx-1) that encodes a predicted 195 amino acid residue protein with a 21.8 kDa molecular weight. Quantitative real-time PCR analysis revealed that the mRNA level of ApPrx-1 was highest in the hemocyte, fat body, and midgut. Immune-challenged larval fat bodies and hemocytes showed increased ApPrx-1 transcript. Moreover, ApPrx-1 expression was induced in hemocytes and the whole body of A. pernyi following exogenous H2O2 administration. A DNA cleavage assay performed using recombinant ApPrx-1 protein showed that rApPrx-1 protein manifests the ability to protect supercoiled DNA damage from oxidative stress. To test the rApPrx-1 protein antioxidant activity, the ability of the rApPrx-1 protein to remove H2O2 was assessed in vitro using rApPrx-1 protein and DTT, while BSA + DDT served as a control group. The results revealed that ApPrx-1 can efficiently remove H2O2 in vitro. In the loss of function analysis, we found that ApPrx-1 significantly increased the levels of H2O2 in ApPrx-1-depleted larvae compared to the control group. We also found a significantly lower survival rate in the larvae in which ApPrx-1 was knocked down. Interestingly, the antibacterial activity was significantly higher in the ApPrx-1 depleted larvae, compared to the control. Collectively, evidence strongly suggests that ApPrx-1 may regulate physiological activities and provides a reference for further studies to validate the utility of the key genes involved in reliving oxidative stress conditions and regulating the immune responses of insects.
Collapse
Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Isma Gul
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Zahra Khosravi
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Jemirade Ifejola Amarchi
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Xiang Ye
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Lang Yu
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Wu Siyuan
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Hongjuan Cui
- State Key Laboratory of Resource insects, Southwest University, Chongqing 400716, China; Jinfeng Laboratory, Chongqing 401329, China; Chongqing engineering and Technology Research Center for Silk Biomaterials and Regenerative medicine, Chongqing 400716, China.
| |
Collapse
|
2
|
Zhang K, Man X, Hu X, Tan P, Su J, Abbas MN, Cui H. GATA binding protein 6 regulates apoptosis in silkworms through interaction with poly (ADP-ribose) polymerase. Int J Biol Macromol 2024; 256:128515. [PMID: 38040165 DOI: 10.1016/j.ijbiomac.2023.128515] [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: 10/08/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
The GATA family of genes plays various roles in crucial biological processes, such as development, cell differentiation, and disease progression. However, the roles of GATA in insects have not been thoroughly explored. In this study, a genome-wide characterization of the GATA gene family in the silkworm, Bombyx mori, was conducted, revealing lineage-specific expression profiles. Notably, GATA6 is ubiquitously expressed across various developmental stages and tissues, with predominant expression in the midgut, ovaries, and Malpighian tubules. Overexpression of GATA6 inhibits cell growth and promotes apoptosis, whereas, in contrast, knockdown of PARP mitigates the apoptotic effects driven by GATA6 overexpression. Co-immunoprecipitation (co-IP) has demonstrated that GATA6 can interact with Poly (ADP-ribose) polymerase (PARP), suggesting that GATA6 may induce cell apoptosis by activating the enzyme's activity. These findings reveal a dynamic and regulatory relationship between GATA6 and PARP, suggesting a potential role for GATA6 as a key regulator in apoptosis through its interaction with PARP. This research deepens the understanding of the diverse roles of the GATA family in insects, shedding light on new avenues for studies in sericulture and pest management.
Collapse
Affiliation(s)
- Kui Zhang
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China.
| | - Xu Man
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China
| | - Xin Hu
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China
| | - Peng Tan
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China
| | - Jingjing Su
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing 400715, China.
| |
Collapse
|
3
|
Gul I, Abbas MN, Hussaini N, Kausar S, Wu S, Cui H. Peroxiredoxin-2 gene in Antheraea pernyi modulates immune functions and protect DNA damage. Int J Biol Macromol 2024; 256:128410. [PMID: 38029918 DOI: 10.1016/j.ijbiomac.2023.128410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
Peroxiredoxins have been shown to protect insects from oxidative damage and to play a role in the immune system. In the present study, we cloned and characterized the Antheraea pernyi peroxiredoxin 2 (ApPrx-2) gene, then assessed its functional roles. The ApPrx-2 gene has a 687 bp open reading frame that encodes a protein with 288 amino acid residues. Quantitative real-time PCR analysis revealed that the mRNA levels of ApPrx-2 were highest in the hemocytes. Immune challenge assay revealed that ApPrx-2 transcription could be induced after microbial challenge. A DNA cleavage assay employing recombinant ApPrx-2 protein and a metal-catalyzed oxidation system showed that rApPrx-2 protein could protect supercoiled DNA against oxidative stress. The protein antioxidant activity of rApPrx-2 was examined, and it was found that rApPrx-2 exhibited a high level of antioxidant activity by removing H2O2. In addition, ApPrx-2 knockdown larvae had higher H2O2 levels and a lower survival rate when compared to controls. Interestingly, the antibacterial activity was significantly higher in ApPrx-2 depleted larvae compared with control. Overall, our findings indicate that ApPrx-2 may be involved in a range of physiological functions of A. pernyi, as it protects supercoiled DNA from oxidative stress and regulates antibacterial activity.
Collapse
Affiliation(s)
- Isma Gul
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China; Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China
| | - Najibullah Hussaini
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China
| | - Saima Kausar
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China
| | - Siyuan Wu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China; Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China; Jinfeng Laboratory, Chongqing, 401329, China..
| |
Collapse
|
4
|
Abbas MN, Kausar S, Asma B, Ran W, Li J, Lin Z, Li T, Cui H. MicroRNAs reshape the immunity of insects in response to bacterial infection. Front Immunol 2023; 14:1176966. [PMID: 37153604 PMCID: PMC10161253 DOI: 10.3389/fimmu.2023.1176966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/05/2023] [Indexed: 05/09/2023] Open
Abstract
The interaction between bacteria and insects can significantly impact a wide range of different areas because bacteria and insects are widely distributed around the globe. The bacterial-insect interactions have the potential to directly affect human health since insects are vectors for disease transmission, and their interactions can also have economic consequences. In addition, they have been linked to high mortality rates in economically important insects, resulting in substantial economic losses. MicroRNAs (miRNAs) are types of non-coding RNAs involved in regulating gene expression post-transcriptionally. The length of miRNAs ranges from 19 to 22 nucleotides. MiRNAs, in addition to their ability to exhibit dynamic expression patterns, have a diverse range of targets. This enables them to govern various physiological activities in insects, like innate immune responses. Increasing evidence suggests that miRNAs have a crucial biological role in bacterial infection by influencing immune responses and other mechanisms for resistance. This review focuses on some of the most recent and exciting discoveries made in recent years, including the correlation between the dysregulation of miRNA expression in the context of bacterial infection and the progression of the infection. Furthermore, it describes how they profoundly impact the immune responses of the host by targeting the Toll, IMD, and JNK signaling pathways. It also emphasizes the biological function of miRNAs in regulating immune responses in insects. Finally, it also discusses current knowledge gaps about the function of miRNAs in insect immunity, in addition to areas that require more research in the future.
Collapse
Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Saima Kausar
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Bibi Asma
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Wenhao Ran
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Gastrointestinal Vascular Surgery, The Chongqing Ninth People’s Hospital, Chongqing, China
| | - Jingui Li
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Gastrointestinal Vascular Surgery, The Chongqing Ninth People’s Hospital, Chongqing, China
| | - Zini Lin
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Gastrointestinal Vascular Surgery, The Chongqing Ninth People’s Hospital, Chongqing, China
| | - Tiejun Li
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Gastrointestinal Vascular Surgery, The Chongqing Ninth People’s Hospital, Chongqing, China
- *Correspondence: Tiejun Li, ; Hongjuan Cui,
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Jinfeng Laboratory, Chongqing, China
- *Correspondence: Tiejun Li, ; Hongjuan Cui,
| |
Collapse
|
5
|
Zhang K, Su J, Hu X, Yan X, Chen S, Li C, Pan G, Chang H, Tian W, Abbas MN, Cui H. Integrin β2 and β3: Two plasmatocyte markers deepen our understanding of the development of plasmatocytes in the silkworm Bombyx mori. INSECT SCIENCE 2022; 29:1659-1671. [PMID: 35420711 DOI: 10.1111/1744-7917.13045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 02/27/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Insect hemocytes play important biological roles at developmental stages, metamorphosis, and innate immunity. As one of the most abundant cell types, plasmatocytes can participate in various innate immune responses, especially in encapsulation and node formation. Here, 2 molecular markers of plasmatocytes, consisting of integrin β2 and β3, were identified and used to understand the development of plasmatocytes. Plasmatocytes are widely distributed in the hematopoietic system, including circulating hemolymph and hematopoietic organs (HPOs). HPOs constantly release plasmatocytes with high proliferative activity in vitro; removal of HPOs leads to a dramatic reduction in the circulating plasmatocytes, and the remaining plasmatocytes gradually lose their ability to proliferate in vivo. Our results demonstrated that the release of plasmatocytes from HPOs is regulated by insulin-mediated signals and their downstream pathways, including PI3K/Akt and MAPK/Erk signals. The insulin/PI3K/Akt signaling pathway can significantly irritate the hematopoiesis, and its inhibitor LY294002 could inhibit the hemocytes discharged from HPOs. While the insulin/MAPK/Erk signaling pathway plays a negative regulatory role, inhibiting its activity with U0126 can markedly promote the discharge of plasmatocytes from HPOs. Our results indicate that the circulating plasmatocytes are mainly generated and discharged by HPOs. This process is co-regulated by the PI3K/Akt and MAPK/Erk signals in an antagonistic manner to adjust the dynamic balance of the hemocytes. These findings can enhance our understanding of insect hematopoiesis.
Collapse
Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Jingjing Su
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Xin Hu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Xiaomin Yan
- Chongqing iCELL Biotechnology Co. Ltd, Chongqing, China
| | - Siyuan Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Hongbo Chang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Wenli Tian
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
- Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing, China
| |
Collapse
|
6
|
Kausar S, Gul I, Liu R, Ke XX, Dong Z, Abbas MN, Cui H. Antheraea pernyi Suppressor of Cytokine Signaling 2 Negatively Modulates the JAK/STAT Pathway to Attenuate Microbial Infection. Int J Mol Sci 2022; 23:ijms231810389. [PMID: 36142300 PMCID: PMC9499667 DOI: 10.3390/ijms231810389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
The Janus kinase (JAK) signal transducer and activator of transcription (STAT) pathway has been shown to govern various physiological processes, including immune responses, hematopoiesis, cell growth, and differentiation. Recent studies show that suppressors of cytokine signaling (SOCS) proteins attenuate JAK-STAT signaling in mammals; however, their functions are less clear in lepidopteran insects. Here, we report a full-length sequence of SOCS-2 from the Chinese oak silkworm Antheraea pernyi (designated as ApSOCS-2) and study its biological role in immune responses via the JAK-STAT pathway. ApSOCS-2 expression was high in the fat bodies and hemocytes of A. pernyi fifth instar larvae. After pathogen infection with nucleopolyhedrovirus, Beauveria bassiana, Escherichia coli, and Microccus luteus, ApSOCS-2 mRNA was strongly increased compared to the control group. To elucidate the possible involvement in innate immunity, we measured antimicrobial peptide genes expression profiles in the fat body of A. pernyi. In contrast, recombinant ApSOCS-2 protein administration significantly reduced the AMPs transcription, while the depletion of ApSOCS-2 by RNAi increased their expression. Furthermore, we observed higher antibacterial activity and lower bacterial replication in dsApSOCS-2-treated larvae. The ApSOCS-2 transcription level was reduced in STAT depleted A. pernyi larvae challenged by M. luteus. The ApSOCS-2 RNAi data sets were also subjected to transcriptomic analysis, which suggests that ApSOCS-2 is a key regulator of immune function. Taken together, our data suggest that ApSOCS-2 is required for the negative regulation of AMPs transcripts via the JAK-STAT pathway in the insect.
Collapse
Affiliation(s)
- Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Ruochen Liu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Xiao-Xue Ke
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
- Correspondence: (M.N.A.); (H.C.); Tel.: +86-23-68251712 (H.C.)
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Affiliation Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
- Correspondence: (M.N.A.); (H.C.); Tel.: +86-23-68251712 (H.C.)
| |
Collapse
|
7
|
Kausar S, Abbas MN, Gul I, Liu Y, Tang BP, Maqsood I, Liu QN, Dai LS. Integrins in the Immunity of Insects: A Review. Front Immunol 2022; 13:906294. [PMID: 35757717 PMCID: PMC9218073 DOI: 10.3389/fimmu.2022.906294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/02/2022] [Indexed: 12/30/2022] Open
Abstract
Integrins are a large group of cell-surface proteins that are classified as transmembrane proteins. Integrins are classified into different types based on sequence variations, leading to structural and functional diversity. They are broadly distributed in animals and have a wide range of biological functions such as cell-to-cell communication, intracellular cytoskeleton organization, cellular signaling, immune responses, etc. Integrins are among the most abundant cell surface proteins in insects, exhibiting their indispensability in insect physiology. Because of their critical biological involvement in physiological processes, they appear to be a novel target for designing effective pest control strategies. In the current literature review, we first discuss the discovery and expression responses of integrins against various types of pathogens. Secondly, we examine the specific biological roles of integrins in controlling microbial pathogens, such as phagocytosis, encapsulation, nodulation, immune signaling, and so on. Finally, we describe the possible uses of integrins to control agricultural insect pests.
Collapse
Affiliation(s)
- Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Yu Liu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Bo-Ping Tang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, School of Wetlands, Yancheng Teachers University, Yancheng, China
| | - Iram Maqsood
- Department of Zoology, Shaheed Benazir Bhutto Woman University, Peshawar, Pakistan
| | - Qiu-Ning Liu
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, School of Wetlands, Yancheng Teachers University, Yancheng, China.,Key Laboratory of Insect Developmental and Evolutionary Biology, Chinese Academy of Sciences (CAS) Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Li-Shang Dai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
8
|
Zhang K, Tan J, Hao X, Tang H, Abbas MN, Su J, Su Y, Cui H. Bombyx mori U-shaped regulates the melanization cascade and immune response via binding with the Lozenge protein. INSECT SCIENCE 2022; 29:704-716. [PMID: 34331739 DOI: 10.1111/1744-7917.12959] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/01/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Zinc finger protein, an important transcription factor, regulates gene expression associated with various physiological and pathological processes. U-shaped, belong to the Friend of GATA (FOG) transcription factor, plays a crucial role in hematopoiesis by interacting with the GATA transcription factor as a co-factor. However, little is known about its functions in insects. In the present study, a U-shaped cDNA was identified and characterized from the silkworm Bombyx mori and its potential roles in innate immunity investigated. The predicted silkworm U-shaped amino acid sequence contained a classical nuclear localization signal (NLS) motif "GESSPKRRRR" at position 450-459, and arginine residues at position 456 and 478 are the critical sites of the NLS. U-shaped mRNA was detected in all tested tissues of the B. mori; however, the highest levels were found in the hemocytes. U-shaped mRNA expression levels were upregulated in the hemocyte after the Escherichia coli and Staphylococcus aureus challenge. Furthermore, U-shaped knockdown significantly reduced the melanization process and suppressed the expression of melanization-associated genes, including PPO1, PPO2, PPAE and BAEE. In addition, U-shaped interacts with Lozenge protein to regulate the innate immune response of the insect. Our results revealed that U-shaped binds directly to Lozenge protein to modulate the melanization process and innate immune responses in silkworm.
Collapse
Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Juan Tan
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Xiangwei Hao
- Chongqing Reproductive and Genetics Institute, Chongqing Obstetrics and Gynecology Hospital, Chongqing, 400013, China
| | - Houyi Tang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Jingjing Su
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Yongyue Su
- Department of Orthopaedic, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, 650032, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
- Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing, 400716, China
| |
Collapse
|
9
|
Kausar S, Liu R, Gul I, Abbas MN, Cui H. Transcriptome Sequencing Highlights the Regulatory Role of DNA Methylation in Immune-Related Genes' Expression of Chinese Oak Silkworm, Antheraea pernyi. INSECTS 2022; 13:296. [PMID: 35323594 PMCID: PMC8951095 DOI: 10.3390/insects13030296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 12/12/2022]
Abstract
Antheraea pernyi is an important lepidopteran used as a model insect species to investigate immune responses, development, and metabolism modulation. DNA methylation has recently been found to control various physiological processes throughout the life of animals; however, DNA methylation and its effect on the physiology of insects have been poorly investigated so far. In the present study, to better understand DNA methylation and its biological role in the immune system, we analyzed transcriptome profiles of A. pernyi pupae following DNA methylation inhibitor injection and Gram-positive bacteria stimulation. We then compared the profiles with a control group. We identified a total of 55,131 unigenes from the RNA sequence data. A comparison of unigene expression profiles showed that a total of 680 were up-regulated and 631 unigenes were down-regulated in the DNA-methylation-inhibition-bacteria-infected group compared to the control group (only bacteria-injected pupae), respectively. Here, we focused on the immune-related differentially expressed genes (DEGs) and screened 10 genes that contribute to immune responses with an up-regulation trend, suggesting that microbial pathogens evade host immunity by increasing DNA methylation of the host genome. Furthermore, several other unigenes related to other pathways were also changed, as shown in the KEGG analysis. Taken together, our data revealed that DNA methylation seems to play a crucial biological role in the regulation of gene expression in insects, and that infection may enhance the host genome DNA methylation by a yet-unknown mechanism.
Collapse
Affiliation(s)
- Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Ruochen Liu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing 400716, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| |
Collapse
|
10
|
Liu FF, Liu Z, Li H, Zhang WT, Wang Q, Zhang BX, Sun YX, Rao XJ. CTL10 has multiple functions in the innate immune responses of the silkworm, Bombyx mori. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 127:104309. [PMID: 34748796 DOI: 10.1016/j.dci.2021.104309] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Insect C-type lectins (CTLs) play crucial roles in modulating the humoral and cellular immune responses. In the domesticated silkworm Bombyx mori L., BmCTL10 gene encodes an immulectin containing two carbohydrate recognition domains (CRDs). The phylogenetic analysis showed that BmCTL10 didn't cluster with other immulectin homologs in B. mori. BmCTL10 was mainly expressed in second to fifth instar larvae, wandering stage larvae, prepupa, and adults. In naïve fifth instar larvae, BmCTL10 was predominantly expressed in the fat body and epidermis. In second instar larvae, the topical application of Beauveria bassiana by immersion caused down-regulation of BmCTL10. The intra-hemocoel injection of E. coli, S. aureus, B. bassiana, and 20-hydroxyecdysone in fifth instar larvae caused tissue and time-specific inductions. The recombinant protein (rBmCTL10) can bind to larval hemocytes and various pathogen-associated molecular patterns to enhance hemocyte-mediated nodulation, phagocytosis, and encapsulation. rBmCTL10 caused significant upregulation of most antimicrobial peptides and nitric oxide synthase 1 in hemocytes in vivo. Yeast two-hybrid demonstrated that integrin β3 and β4 subunits can interact with BmCTL10. Furthermore, only CRD2 can interact with the β3, while both CRD1 and CRD2 can interact with the β4. Taken together, this study showed that BmCTL10 has multiple functions in the innate immune responses of B. mori and two integrin β subunits are their potential receptors.
Collapse
Affiliation(s)
- Fang-Fang Liu
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Ze Liu
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Hao Li
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Wen-Ting Zhang
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Qian Wang
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Bang-Xian Zhang
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Yan-Xia Sun
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Xiang-Jun Rao
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agricultural University, Hefei, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China.
| |
Collapse
|
11
|
Gul I, Kausar S, You Q, Sun W, Li Z, Abbas MN, Cui H. Identification and the immunological role of two Nimrod family genes in the silkworm, Bombyx mori. Int J Biol Macromol 2021; 193:154-165. [PMID: 34688681 DOI: 10.1016/j.ijbiomac.2021.10.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 01/30/2023]
Abstract
In animals, immune signaling pathways and effector molecules participate in attenuating microbial infection. Recent work has shown that the Nimrod family proteins can directly bind to bacteria, and this binding leads to bacterial phagocytosis. Although the Nimrod gene family has been reported in many non-drosophilids, their functions remain unexplored in most insect species. Here, we report two members (Nimrod-B and Draper) of the Nimrod gene family from Bombyx mori and analyzed their role in immunity. The two genes were ubiquitously expressed in the tested tissues; but, they transcribed preferentially in immune tissues. The developmental profiles showed that BmNimrod-B and BmDraper transcription levels were highest in the pupal stages. Challenge with microbial pathogens induced the transcription levels of all two genes at different time points. Knockdown of BmDraper decreased the bacterial clearance and increased their replication relative to the control group, whereas, BmNimrod-B suppression had a non-significant effect on them. Furthermore, the mortality rate was increased after BmDraper silencing. The knockdown of these genes did not significantly affect the production of antimicrobial peptides following E. coli infection. Taken together, the Nimrod family genes play a crucial role in host defense by positively regulating the antibacterial immune response in silkworm B. mori.
Collapse
Affiliation(s)
- Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Qiuxiang You
- Neurological Disease Center of the Third Affiliated Hospital of Chongqing Medical University, 401120, China
| | - Wei Sun
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Zekun Li
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
| |
Collapse
|
12
|
Zhang K, Shen L, Wang X, Yang H, Zhang X, Pan G, Li C, Ji H, Abbas MN, Li C, Cui H. Scavenger receptor C regulates antimicrobial peptide expression by activating toll signaling in silkworm, Bombyx mori. Int J Biol Macromol 2021; 191:396-404. [PMID: 34547317 DOI: 10.1016/j.ijbiomac.2021.09.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/26/2021] [Accepted: 09/13/2021] [Indexed: 01/19/2023]
Abstract
Scavenger receptor is pattern-recognition receptor (PRR) that plays a crucial function in host defense against pathogens. Scavenger receptor C (SR-C) is present only in invertebrates and its function has not been studied in detail. In this study, an SR-C homologous gene from the silkworm, Bombyx mori, was identified and characterized. SR-C was largely expressed in hemocytes and Malpighian tubules, with continuous expression in hemocytes. The peak expression was observed in hemocytes during molting and wandering stages both at mRNA and protein levels. Furthermore, immunofluorescence demonstrated it to be mainly distributed in the cell membranes of hemocytes, including oenocytoids and granulocytes. The recombinant SR-C protein (rSR-C) could bind to different types of bacteria and pathogen-associated molecular patterns (PAMPs), with strong binding to gram-positive bacteria and Lys-type peptidoglycans. The overexpression of SR-C induced the expression of genes related to the Toll pathway and antibacterial peptides. While the knockdown of SR-C reduced the expression of AMPs and inhibited the Toll pathway, it impaired the bacterial clearance ability of silkworm larvae, thus decreasing silkworm larvae's survival rate. Altogether, SR-C is a PRR that protect silkworms against bacterial pathogens by enhancing the expression of AMPs expression via the Toll pathway in hemocytes.
Collapse
Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Li Shen
- Department of Pathology, Chongqing General Hospital, University of Chinese Academy of Sciences, China
| | - Xue Wang
- Department of Pathology, Chongqing General Hospital, University of Chinese Academy of Sciences, China
| | - He Yang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Xiaolin Zhang
- Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Haoyan Ji
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China
| | - Cong Li
- School of River and Ocean, Chongqing Jiaotong University, 400074, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, China; Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
| |
Collapse
|
13
|
Abbas MN, Kausar S, Gul I, Ke XX, Dong Z, Lu X, Cui H. Suppressor of cytokine signalling 6 is a potential regulator of antimicrobial peptides in the Chinese oak silkworm, Antheraea pernyi. Mol Immunol 2021; 140:12-21. [PMID: 34628136 DOI: 10.1016/j.molimm.2021.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/31/2021] [Accepted: 10/02/2021] [Indexed: 12/29/2022]
Abstract
The SOCS/CIS is a family of intracellular proteins distributed widely among living organisms. The members of this family have extensively been studied in mammals and have been shown to regulate various physiological processes. In contrast, the functional roles of SOCS/CIS family proteins are unknown in most invertebrates, including insects. Here, we retrieved a full-length open reading frame (ORF) of SOCS-6 from Chines oak silkworm, Antheraea pernyi (Designated as ApSOCS-6), using the RNA-seq database. The predicted ApSOCS-6 amino acid sequence comprised an N-terminal SH2 domain and a C-terminal SOCS-box domain. It shared the highly conserved structures of the SOCS proteins with other lepidopteran species. ApSOCS-6 mRNA transcript was detected in all the tested tissues of the A. pernyi larvae; however, the highest mRNA levels were found in the larval hemocytes, fat bodies, and integuments. The mRNA transcript levels of ApSOCS-6 were increased in the A. pernyi larval hemocytes and fat bodies after a challenge by the Gram-positive bacteria, M. luteus, Gram-negative bacteria, Escherichia coli, Virus, ApNPV, and Fungus, B. bassiana. After the knockdown of ApSOCS-6, we found a significant increase in bacterial clearance and a decrease in the relative replication of bacteria. To evaluate the possible cause of enhanced antibacterial activity, we measured antimicrobial peptides expression in the fat body of A. pernyi larvae. The production of AMPs was strongly increased in the B. cereus infected larval fat bodies following silencing of ApSOCS-6. Our data indicate that ApSOCS-6 negatively regulates the expression of AMPs in immune tissues in response to the B. cereus challenge.
Collapse
Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Xiao-Xue Ke
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Xiaoqin Lu
- Clinical Pharmacy Department, Affiliated Hospital of Southwest University (The Ninth Peoples Hospital of Chongqing), China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
| |
Collapse
|
14
|
Kausar S, Abbas MN, Cui H. A review on the DNA methyltransferase family of insects: Aspect and prospects. Int J Biol Macromol 2021; 186:289-302. [PMID: 34237376 DOI: 10.1016/j.ijbiomac.2021.06.205] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/22/2021] [Accepted: 06/30/2021] [Indexed: 12/11/2022]
Abstract
The DNA methyltransferase family contains a conserved set of DNA-modifying enzymatic proteins. They are responsible for epigenetic gene modulation, such as transcriptional silencing, transcription activation, and post-transcriptional modulation. Recent research has revealed that the canonical DNA methyltransferases (DNMTs) biological roles go beyond their traditional functions of establishing and maintaining DNA methylation patterns. Although a complete DNA methylation toolkit is absent in most insect orders, recent evidence indicates the de novo DNA methylation and maintenance function remain conserved. Studies using various molecular approaches provided evidence that DNMTs are multi-functional proteins. However, still in-depth studies on their biological role lack due to the least studied area in insects. Here, we review the DNA methylation toolkit of insects, focusing on recent research on various insect orders, which exhibit DNA methylation at different levels, and for which DNMTs functional studies have become available in recent years. We survey research on the potential roles of DNMTs in the regulation of gene transcription in insect species. DNMTs participate in different physiological processes by interacting with other epigenetic factors. Future studies on insect's DNMTs will benefit to understand developmental processes, responses to various stimuli, and adaptability of insects to different environmental conditions.
Collapse
Affiliation(s)
- Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.
| |
Collapse
|
15
|
Li C, Zhang K, Pan G, Ji H, Li C, Wang X, Hu X, Liu R, Deng L, Wang Y, Yang L, Cui H. Dehydrodiisoeugenol inhibits colorectal cancer growth by endoplasmic reticulum stress-induced autophagic pathways. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:125. [PMID: 33838688 PMCID: PMC8035743 DOI: 10.1186/s13046-021-01915-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
Background Dehydrodiisoeugenol (DEH), a novel lignan component extracted from nutmeg, which is the seed of Myristica fragrans Houtt, displays noticeable anti-inflammatory and anti-allergic effects in digestive system diseases. However, the mechanism of its anticancer activity in gastrointestinal cancer remains to be investigated. Methods In this study, the anticancer effect of DEH on human colorectal cancer and its underlying mechanism were evaluated. Assays including MTT, EdU, Plate clone formation, Soft agar, Flow cytometry, Electron microscopy, Immunofluorescence and Western blotting were used in vitro. The CDX and PDX tumor xenograft models were used in vivo. Results Our findings indicated that treatment with DEH arrested the cell cycle of colorectal cancer cells at the G1/S phase, leading to significant inhibition in cell growth. Moreover, DEH induced strong cellular autophagy, which could be inhibited through autophagic inhibitors, with a rction in the DEH-induced inhibition of cell growth in colorectal cancer cells. Further analysis indicated that DEH also induced endoplasmic reticulum (ER) stress and subsequently stimulated autophagy through the activation of PERK/eIF2α and IRE1α/XBP-1 s/CHOP pathways. Knockdown of PERK or IRE1α significantly decreased DEH-induced autophagy and retrieved cell viability in cells treated with DEH. Furthermore, DEH also exhibited significant anticancer activities in the CDX- and PDX-models. Conclusions Collectively, our studies strongly suggest that DEH might be a potential anticancer agent against colorectal cancer by activating ER stress-induced inhibition of autophagy. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01915-9.
Collapse
Affiliation(s)
- Changhong Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China.,Affiliated Hospital of Southwest University (the Ninth People's Hospital of Chongqing), Chongqing, 400716, China
| | - Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Haoyan Ji
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Xiaowen Wang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Xin Hu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Ruochen Liu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Longfei Deng
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China
| | - Yi Wang
- Affiliated Hospital of Southwest University (the Ninth People's Hospital of Chongqing), Chongqing, 400716, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China. .,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China. .,Affiliated Hospital of Southwest University (the Ninth People's Hospital of Chongqing), Chongqing, 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass sciences, Southwest University, #2, Tiansheng Rd., Beibei District, Chongqing, 400716, China.,Cancer Centre, Medical Research Institute, Southwest University, Chongqing, 400716, China.,Affiliated Hospital of Southwest University (the Ninth People's Hospital of Chongqing), Chongqing, 400716, China
| |
Collapse
|
16
|
Zhang K, Hu X, Zhao Y, Pan G, Li C, Ji H, Li C, Yang L, Abbas MN, Cui H. Scavenger receptor B8 improves survivability by mediating innate immunity in silkworm, Bombyx mori. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 116:103917. [PMID: 33159959 DOI: 10.1016/j.dci.2020.103917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/31/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
Scavenger receptor class B (SR-B) is an extracellular transmembrane glycoprotein that plays a vital role in innate immunity. Although SR-Bs have been widely studied in vertebrates, their functions remained to elucidate in insects. Here, we identified and characterized a scavenger receptor class B member from the silkworm, Bombyx mori (designated as BmSCRB8). BmSCRB8 is broadly expressed in various immune tissues/organs, including fat body, gut, and hemocyte. Its expression is dramatically enhanced after challenge with different types of bacteria or pathogen-associated molecular patterns (PAMPs). The recombinant BmSCRB8 protein can detect different types of bacteria by directly binding to PAMPs and significantly improve the bacterial clearance in vivo. After knockdown of BmSCRB8, the pathogenic bacterial clearance was strongly impaired, and several AMP genes were down-regulated following E. coli challenge. Moreover, pathogenic bacteria's treatment following the depletion of BmSCRB8 remarkably decreased silkworm larvae's survival rate. Taken together, these results demonstrate that BmSCRB8 acts as a pattern recognition protein and plays an essential role in silkworm innate immunity by enhancing bacterial clearance and contributing to the production of AMPs in vivo.
Collapse
Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Xin Hu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Yuzu Zhao
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Haoyan Ji
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Changhong Li
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400716, Chongqing, China; Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, 400715, Chongqing, China.
| |
Collapse
|