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Sun S, Chen Q, Gao J, Qu M, Chen Z, Wang K, Wang H. Sublethal effects of nitenpyram on the development of silkworm. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175262. [PMID: 39098428 DOI: 10.1016/j.scitotenv.2024.175262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
The utilization of nitenpyram for aphid and whitefly control may induce environmental contamination and negative repercussions on non-target organisms. Formerly, we found that nitenpyram would pollute the peripheral and sub-peripheral areas of the adjacent mulberry orchard. Under acute toxicity conditions, nitenpyram induced oxidative damage in silkworms, affected biological metabolism, synthesis, immunity, and signal transduction. Considering the impact of nitenpyram mist drift on mulberry leaves, we investigated the effects of low concentrations of nitenpyram on silkworms. The results showed that silkworms exposed to 0.17 mg/L, 0.35 mg/L and 0.70 mg/L of nitenpyram (1/40 LC50, 1/20 LC50 and 1/10 LC50) showed obvious poisoning symptoms. The cocoon weight and cocoon shell weight decreased gradually with increases in the concentration, and these decreases prolonged the growth and development time of silkworms and induced the detoxification enzymes carboxylesterase (CarE) and glutathione-S-transferase (GST) to cope with the stress damage caused by nitenpyram. Exposure to low concentrations of nitenpyram downregulates genes involved in the drug metabolism-other enzymes and peroxisome pathway in silkworms. Additionally, through injection of miRNA mimics and inhibitors, we discovered that detoxifying enzyme pathway genes are influenced by bmo-miR-3382-3P, bmo-miR-3213-5P and bmo-miR-133, regulating the immune response of silkworms. This study provides an overall view of the toxicity and detoxification metabolism of nitenpyram in silkworm, and provides a reference for environmental assessment.
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Affiliation(s)
- Shoumin Sun
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China
| | - Qiqi Chen
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China
| | - Jingwei Gao
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China
| | - Minghui Qu
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China; Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong, China
| | - Zhenzhen Chen
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China
| | - Kaiyun Wang
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China
| | - Hongyan Wang
- Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China.
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Chen JJ, Liu XX, Guo PH, Teets NM, Zhou JC, Chen WB, Luo QZ, Kanjana N, Li YY, Zhang LS. Regulation of forkhead box O transcription factor by insulin signaling pathway controls the reproductive diapause of the lady beetle, Coccinella septempunctata. Int J Biol Macromol 2024; 258:128104. [PMID: 37977460 DOI: 10.1016/j.ijbiomac.2023.128104] [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: 10/09/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
In biological control programs, knowledge about diapause regulation in natural enemy insects provides important insight for improving long-term storage, transportation, and field adoption of these biological control agents. As a natural predator of agricultural pests, the lady beetle Coccinella septempunctata has been commercially mass-cultured and widely employed in pest management. In some insects, insulin signaling, in conjunction with the downstream transcription factor Forkhead box O (FoxO), are master regulators of multiple physiological processes involved in diapause, but it is unclear whether insulin signaling and FoxO affect the diapause of C. septempunctata. In this study, we use a combination of approaches to demonstrate that insulin signaling and FoxO mediate the diapause response in C. septempunctata. In diapausing beetles, application of exogenous insulin and knocking down expression of CsFoxo with RNA interference (RNAi) both rescued beetles from developmental arrest. In non-diapausing beetles, knocking down expression of the insulin receptor (CsInR) with RNA interference (RNAi) arrested ovarian development and decreased juvenile hormone (JH) content to levels comparable to the diapause state. Taken together, these results suggest that a shutdown of insulin signaling prompts the activation of the downstream FoxO gene, leading to the diapause phenotype.
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Affiliation(s)
- Jun-Jie Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Xiao-Xiao Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Peng-Hui Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Nicholas M Teets
- Department of Entomology, University of Kentucky, Lexington, KY 40546, USA
| | - Jin-Cheng Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China; Plant Protection College, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Wan-Bin Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Qiao-Zhi Luo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Nipapan Kanjana
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China
| | - Yu-Yan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China.
| | - Li-Sheng Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture and Rural Affairs, Key Laboratory of Natural Enemy Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2, West Yuan Ming Yuan Road, Beijing 100193, PR China.
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Milković L, Mlinarić M, Lučić I, Čipak Gašparović A. The Involvement of Peroxiporins and Antioxidant Transcription Factors in Breast Cancer Therapy Resistance. Cancers (Basel) 2023; 15:5747. [PMID: 38136293 PMCID: PMC10741870 DOI: 10.3390/cancers15245747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/16/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Breast cancer is still the leading cause of death in women of all ages. The reason for this is therapy resistance, which leads to the progression of the disease and the formation of metastases. Multidrug resistance (MDR) is a multifactorial process that leads to therapy failure. MDR involves multiple processes and many signaling pathways that support each other, making it difficult to overcome once established. Here, we discuss cellular-oxidative-stress-modulating factors focusing on transcription factors NRF2, FOXO family, and peroxiporins, as well as their possible contribution to MDR. This is significant because oxidative stress is a consequence of radiotherapy, chemotherapy, and immunotherapy, and the activation of detoxification pathways could modulate the cellular response to therapy and could support MDR. These proteins are not directly responsible for MDR, but they support the survival of cancer cells under stress conditions.
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Affiliation(s)
| | | | | | - Ana Čipak Gašparović
- Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (L.M.); (M.M.); (I.L.)
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