1
|
Lu Q, Gong W, Wang J, Ji K, Sun X, Xu C, Du L, Wang Y, Liu Q. Analysis of changes to lncRNAs and their target mRNAs in murine jejunum after radiation treatment. J Cell Mol Med 2018; 22:6357-6367. [PMID: 30324649 PMCID: PMC6237565 DOI: 10.1111/jcmm.13940] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/08/2018] [Accepted: 08/28/2018] [Indexed: 12/14/2022] Open
Abstract
LncRNAs have been reported to play an important role in various diseases. However, their role in the radiation‐induced intestinal injury is unknown. The goal of the present study was to analyse the potential mechanistic role of lncRNAs in the radiation‐induced intestinal injury. Mice were divided into two groups: Control (non‐irradiated) and irradiated. Irradiated mice were administered 14 Gy of abdominal irradiation (ABI) and were assessed 3.5 days after irradiation. Changes to the jejuna of ABI mice were analysed using RNA‐Seq for alterations to both lncRNA and mRNA. These results were validated using qRT‐PCR. LncRNAs targets were predicted based on analysis of lncRNAs‐miRNAs‐mRNAs interaction. 29 007 lncRNAs and 17 142 mRNAs were detected in the two groups. At 3.5 days post‐irradiation, 91 lncRNAs and 57 lncRNAs were significantly up‐ and downregulated respectively. Similarly, 752 mRNAs and 400 mRNAs were significantly up‐ and downregulated respectively. qRT‐PCR was used to verify the altered expression of four lncRNAs (ENSMUST00000173070, AK157361, AK083183, AK038898) and four mRNAs (Mboat1, Nek10, Ccl24, Cyp2c55). Gene ontology and KEGG pathway analyses indicated the predicted genes were mainly involved in the VEGF signalling pathway. This study reveals that the expression of lncRNAs was altered in the jejuna of mice post‐irradiation. Moreover, it provides a resource for the study of lncRNAs in the radiation‐induced intestinal injury.
Collapse
Affiliation(s)
- Qianying Lu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Wei Gong
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Jinhan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Kaihua Ji
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Xiaohui Sun
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Chang Xu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Liqing Du
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Yan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Qiang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| |
Collapse
|
2
|
Li Y, Kong S, Yang F, Xu W. Protective Effects of 2-Amino-5,6-dihydro-4 H-1,3-thiazine and Its Derivative against Radiation-Induced Hematopoietic and Intestinal Injury in Mice. Int J Mol Sci 2018; 19:ijms19051530. [PMID: 29883417 PMCID: PMC5983608 DOI: 10.3390/ijms19051530] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 12/17/2022] Open
Abstract
Ionizing radiation (IR) acts as an external stimulating factor, when it acts on the body, it will activate NF- κ B and cause the up-regulation of inducible nitric oxide synthase (iNOS) and induce a large amount of nitric oxide (NO) production. NO and other reactive nitrogen and oxygen species (RNS and ROS) can cause damage to biological molecules and affect their physiological functions. Our study investigated the protective role of 2-amino-5,6-dihydro-4H-1,3-thiazine hydrobromide (2-ADT) and 2-acetylamino-5,6-dihydro-4H-1,3-thiazine hydrobromide (2-AADT), two nitric oxide synthase inhibitors, against radiation-induced hematopoietic and intestinal injury in mice. Pretreatment with 2-ADT and 2-AADT improved the survival of mice exposed to a lethal dose of radiation, especially, the survival rate of the 2-ADT 20 mg/kg group was significantly higher than that of the vehicle group (p < 0.001). Our findings indicated that the radioprotective actions of 2-ADT and 2-AADT are achieved via accelerating hematopoietic system recovery, decreasing oxidative and nitrosative stress by enhancing the antioxidant defense system and reducing NO as well as peroxynitrite (ONOO − ) content, and mitigating the radiation-induced DNA damage evaluated by comet assay. These results suggest that 2-ADT and 2-AADT may have great application potential in ameliorating the damages of radiotherapy.
Collapse
Affiliation(s)
- Yuanyuan Li
- Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical Collage, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192, China.
| | - Shaofan Kong
- Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical Collage, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192, China.
| | - Fujun Yang
- Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical Collage, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192, China.
| | - Wenqing Xu
- Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical Collage, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192, China.
| |
Collapse
|