1
|
Chen L, Liang J, Zhang Q, Yang C, Lu H, Zhang R, Chen K, Wang S, Li M, Zhang S, He N. Mulberry-derived miR168a downregulates BmMthl1 to promote physical development and fecundity in silkworms. Int J Biol Macromol 2024; 259:129077. [PMID: 38199542 DOI: 10.1016/j.ijbiomac.2023.129077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024]
Abstract
Plant-derived miRNAs and their interactions with host organisms are considered important factors in regulating host physiological processes. In this study, we investigated the interaction between the silkworm, an oligophagous insect, and its primary food source, mulberry, to determine whether mulberry-derived miRNAs can penetrate silkworm cells and regulate their functions. Our results demonstrated that miR168a from mulberry leaves enters the silkworm hemolymph and binds to the silkworm Argonaute1 BmAGO1, which is transported via vesicles secreted by silkworm cells to exert its regulatory functions. In vivo and in vitro functional studies revealed that miR168a targets the mRNA of silkworm G protein-coupled receptor, BmMthl1, thereby inhibiting its expression and activating the JNK-FoxO pathway. This activation reduces oxidative stress responses, prolongs the lifespan of silkworms, and improves their reproductive capacity. These findings highlight the challenges of replacing mulberry leaves with alternative protein sources and provide a foundation for developing silkworm germplasms suitable for factory rearing.
Collapse
Affiliation(s)
- Lin Chen
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Jiubo Liang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Qi Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Chao Yang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Hulin Lu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Renze Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Kaiying Chen
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Sheng Wang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Mingbo Li
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Shaoyu Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Ningjia He
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China.
| |
Collapse
|
2
|
Bian Y, Li W, Jiang X, Yin F, Yin L, Zhang Y, Guo H, Liu J. Garlic-derived exosomes carrying miR-396e shapes macrophage metabolic reprograming to mitigate the inflammatory response in obese adipose tissue. J Nutr Biochem 2023; 113:109249. [PMID: 36496060 DOI: 10.1016/j.jnutbio.2022.109249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Low-grade chronic inflammation originating from the adipose tissue and imbalance of lipid metabolism in the liver are the main drivers of the development of obesity and its related metabolic disorders. In this work, we found that garlic-derived exosomes (GDE) supplementation improved insulin resistance, altered the levels of inflammatory cytokines in serum and epididymal white adipose tissue (eWAT) by decreasing the accumulation of macrophages in HFD-fed mice. Meanwhile, we also observed that GDE regulated the expression of 6-phosphofructo-2-kinase/fructose-2, 6-biphosphatase 3 (PFKFB3), one of the critical glycolytic enzymes, to shape the metabolic reprograming of macrophage induced by lipopolysaccharide (LPS) and mitigate the inflammatory response in adipocytes via macrophage-adipocyte cross-talk. Data from small RNA sequencing, bioinformatical analysis and the gene over-expression revealed that miR-396e, one of the most abundant miRNAs of GDE, played a critical role in promoting the metabolic reprogramming of macrophage by directly targeting PFKFB3. The findings of this study not only provide an in-depth understanding of GDE protecting against inflammation in obesity but supply evidence to study the molecular mechanisms associated with the interspecies communication.
Collapse
Affiliation(s)
- Yangping Bian
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Weizhao Li
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Xiaoqing Jiang
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Fei Yin
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China.
| | - Li Yin
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Yonglan Zhang
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Hong Guo
- Department of Gastroenterology, Chongqing General Hospital, University of Chinese Academic of Sciences, Chongqing, People's Republic of China.
| | - Jianhui Liu
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China.
| |
Collapse
|