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Qi R, Wang J, Sun J, Qiu X, Liu X, Wang Q, Yang F, Ge L, Liu Z. The effects of gut microbiota colonizing on the porcine hypothalamus revealed by whole transcriptome analysis. Front Microbiol 2022; 13:970470. [PMID: 36312924 PMCID: PMC9606227 DOI: 10.3389/fmicb.2022.970470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/29/2022] [Indexed: 11/13/2022] Open
Abstract
The roles of the microbe-gut-brain axis in metabolic homeostasis, development, and health are well-known. The hypothalamus integrates the higher nerve center system and functions to regulate energy balance, feeding, biological rhythms and mood. However, how the hypothalamus is affected by gut microbes in mammals is unclear. This study demonstrated differences in hypothalamic gene expression between the germ-free (GF) pigs and pigs colonized with gut microbiota (CG) by whole-transcriptome analysis. A total of 938 mRNAs, 385 lncRNAs and 42 miRNAs were identified to be differentially expressed between the two groups of pigs. An mRNA-miRNA-lncRNA competing endogenous RNA network was constructed, and miR-22-3p, miR-24-3p, miR-136-3p, miR-143-3p, and miR-545-3p located in the net hub. Gene function and pathway enrichment analysis showed the altered mRNAs were mainly related to developmental regulation, mitochondrial function, the nervous system, cell signaling and neurodegenerative diseases. Notably, the remarkable upregulation of multiple genes in oxidative phosphorylation enhanced the GF pigs’ hypothalamic energy expenditure. Additionally, the reduction in ATP content and the increase in carnitine palmitoyl transterase-1 (CPT1) protein level also confirmed this fact. Furthermore, the hypothalamic cell apoptosis rate in the CG piglets was significantly higher than that in the GF piglets. This may be due to the elevated concentrations of pro-inflammatory factors produced by gut bacteria. The obtained results collectively suggest that the colonization of gut microbes has a significant impact on hypothalamic function and health.
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Affiliation(s)
- Renli Qi
- Chongqing Academy of Animal Science, Chongqing, China
- Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing, China
- *Correspondence: Renli Qi,
| | - Jing Wang
- Chongqing Academy of Animal Science, Chongqing, China
| | - Jing Sun
- Chongqing Academy of Animal Science, Chongqing, China
| | - Xiaoyu Qiu
- Chongqing Academy of Animal Science, Chongqing, China
| | - Xin Liu
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Qi Wang
- Chongqing Academy of Animal Science, Chongqing, China
| | - Feiyun Yang
- Chongqing Academy of Animal Science, Chongqing, China
| | - Liangpeng Ge
- Chongqing Academy of Animal Science, Chongqing, China
- Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing, China
| | - Zuohua Liu
- Chongqing Academy of Animal Science, Chongqing, China
- Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing, China
- Zuohua Liu,
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Xiao Z, Huang X, Wu J, Liu T, Zhao L, Wang Q, Wang M, Shen M, Miao S, Guo D, Li H. The endocytosis of nano-Pt into non-small cell lung cancer H1299 cells and intravital therapeutic effect in vivo. Biochem Biophys Res Commun 2022; 606:80-86. [PMID: 35339756 DOI: 10.1016/j.bbrc.2022.03.094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/18/2022] [Indexed: 11/16/2022]
Abstract
Lung cancer remains the most common fatal malignant disease, and the 5-year survival rate of patients with metastasis is merely 6%. In this research, the platinum nanocluster (short for nano-Pt) was used for optical imaging without the help of other fluorescent probes and possess targeted antitumor activity as well as low systemic toxicity. The endocytic pathway and distribution of nano-Pt in non-small cell lung cancer NSCLC H1299 cells was explored by the means of quantitative and qualitative tests. Furthermore, the targeting capability and antitumor efficiency of nano-Pt was detected by intravital imaging experiment and antitumor experiment. The research implies that nano-Pt entered H1299 cells dominatingly through macropinocytosis and clathrin-dependent endocytosis pathway, and has significant antitumor efficiency, targeting properties and reliable safety for mouse tumor, indicating this nano-Pt has great potential for clinical diagnosis and therapy of NSCLC H1299 cells.
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Affiliation(s)
- Zhongqing Xiao
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xin Huang
- Department of Light Chemical Engineering, School of Textiles, Zhongyuan University of Technology, Zhengzhou, 450007, China
| | - Jie Wu
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ting Liu
- The Affiliated Children Hospital of Xi'an Jiaotong University, Xi'an, 710002, China
| | - Lingyun Zhao
- Department of Endocrinology of People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, 450008, China
| | - Qi Wang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Minyu Wang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Meng Shen
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Shaoyi Miao
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Di Guo
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Hongyun Li
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Yang S, Tian J, Zhang F, Liu A, Xie B, Chen Q. The protective effects of heat shock protein 22 in lung ischemia-reperfusion injury mice. Biochem Biophys Res Commun 2019; 512:698-704. [PMID: 30922561 DOI: 10.1016/j.bbrc.2019.03.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
Abstract
Lung ischemia-reperfusion injury (LIRI) often results in respiratory insufficiency after pulmonary embolism, lung transplantation, etc. To investigate the role of HSP22 in LIRI mice, ischemia-reperfusion injury was established in the left lung of an HSP22 overexpression transgenic mouse. Twelve HSP22 transgenic (TG) mice and twelve wild-type (WT) mice were randomly divided into 2 groups: the sham-operated group (SO: TG-SO, WT-SO) and the ischemia-reperfusion group (I/R: TG-I/R, WT-I/R), respectively. We tested the PaO2, W/D ratio, and MDA level; observed morphology changes; and calculated the index of alveolar damage. HSP22 expression was examined in lung tissues of TG and WT C57BL mice by immunohistochemistry. TUNEL assay was performed to measure apoptosis. We found that HSP22 was significantly overexpressed in TG mice. There was no difference in PaO2 among the four groups. In the I/R group, the W/D ratio, MDA and index of alveolar damage were higher than those in the SO group. Moreover, compared with WT-I/R group, the W/D ratio, MDA and index of alveolar damage in the TG-I/R group were significantly decreased. Apoptosis in the I/R groups was increased compared to that in the SO groups, while apoptosis in the TG-I/R groups was decreased compared to that in the WT-I/R groups. Our results showed that HSP22 TG mice and the LIRI model were successfully established. In addition, HSP22 overexpression has protective effects on LIRI by inhibiting lipid peroxidation and apoptosis.
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Affiliation(s)
- Shasha Yang
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China
| | - Jie Tian
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China
| | - Fufeng Zhang
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Aibin Liu
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Bin Xie
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China
| | - Qiong Chen
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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