1
|
Yuan J, Meng H, Liu Y, Wang L, Zhu Q, Wang Z, Liu H, Zhang K, Zhao J, Li W, Wang Y. Bacillus amyloliquefaciens attenuates the intestinal permeability, oxidative stress and endoplasmic reticulum stress: transcriptome and microbiome analyses in weaned piglets. Front Microbiol 2024; 15:1362487. [PMID: 38808274 PMCID: PMC11131103 DOI: 10.3389/fmicb.2024.1362487] [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: 12/28/2023] [Accepted: 04/22/2024] [Indexed: 05/30/2024] Open
Abstract
Endoplasmic reticulum (ER) stress is related to oxidative stress (OS) and leads to intestinal injury. Bacillus amyloliquefaciens SC06 (SC06) can regulate OS, but its roles in intestinal ER stress remains unclear. Using a 2 × 2 factorial design, 32 weaned piglets were treated by two SC06 levels (0 or 1 × 108 CFU/g), either with or without diquat (DQ) injection. We found that SC06 increased growth performance, decreased ileal permeability, OS and ER stress in DQ-treated piglets. Transcriptome showed that differentially expressed genes (DEGs) induced by DQ were enriched in NF-κB signaling pathway. DEGs between DQ- and SC06 + DQ-treated piglets were enriched in glutathione metabolism pathway. Ileal microbiome revealed that the SC06 + DQ treatment decreased Clostridium and increased Actinobacillus. Correlations were found between microbiota and ER stress genes. In conclusion, dietary SC06 supplementation increased the performance, decreased the permeability, OS and ER stress in weaned piglets by regulating ileal genes and microbiota.
Collapse
Affiliation(s)
- Junmeng Yuan
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Hongling Meng
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Yu Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Li Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Qizhen Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Zhengyu Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Kai Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Jinshan Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Weifen Li
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yang Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| |
Collapse
|
2
|
Zhang F, Chen M, Liu X, Ji X, Li S, Jin E. New insights into the unfolded protein response (UPR)-anterior gradient 2 (AGR2) pathway in the regulation of intestinal barrier function in weaned piglets. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 15:225-232. [PMID: 38033605 PMCID: PMC10685161 DOI: 10.1016/j.aninu.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 07/05/2023] [Accepted: 08/11/2023] [Indexed: 12/02/2023]
Abstract
Sustained dysfunction of the intestinal barrier caused by early weaning is a major factor that induces postweaning diarrhea in weaned piglets. In both healthy and diseased states, the intestinal barrier is regulated by goblet cells. Alterations in the characteristics of goblet cells are linked to intestinal barrier dysfunction and inflammatory conditions during pathogenic infections. In this review, we summarize the current understanding of the mechanisms of the unfolded protein response (UPR) and anterior gradient 2 (AGR2) in maintaining intestinal barrier function and how modifications to these systems affect mucus barrier characteristics and goblet cell dysregulation. We highlight a novel mechanism underlying the UPR-AGR2 pathway, which affects goblet cell differentiation and maturation and the synthesis and secretion of mucin by regulating epidermal growth factor receptor and mucin 2. This study provides a theoretical basis and new insights into the regulation of intestinal health in weaned piglets.
Collapse
Affiliation(s)
- Feng Zhang
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou, China
| | - Mengxian Chen
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
| | - Xiaodan Liu
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
| | - Xu Ji
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Shenghe Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou, China
| | - Erhui Jin
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou, China
| |
Collapse
|
3
|
Hydrogen Sulfide Plays an Important Role by Regulating Endoplasmic Reticulum Stress in Diabetes-Related Diseases. Int J Mol Sci 2022; 23:ijms23137170. [PMID: 35806174 PMCID: PMC9266787 DOI: 10.3390/ijms23137170] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
Endoplasmic reticulum (ER) plays important roles in protein synthesis, protein folding and modification, lipid biosynthesis, calcium storage, and detoxification. ER homeostasis is destroyed by physiological and pharmacological stressors, resulting in the accumulation of misfolded proteins, which causes ER stress. More and more studies have shown that ER stress contributes to the pathogenesis of many diseases, such as diabetes, inflammation, neurodegenerative diseases, cancer, and autoimmune diseases. As a toxic gas, H2S has, in recent years, been considered the third most important gas signal molecule after NO and CO. H2S has been found to have many important physiological functions and to play an important role in many pathological and physiological processes. Recent evidence shows that H2S improves the body’s defenses to many diseases, including diabetes, by regulating ER stress, but its mechanism has not yet been fully understood. We therefore reviewed recent studies of the role of H2S in improving diabetes-related diseases by regulating ER stress and carefully analyzed its mechanism in order to provide a theoretical reference for future research.
Collapse
|
4
|
Cui YJ, Chen LY, Zhou X, Tang ZN, Wang C, Wang HF. Heat stress induced IPEC-J2 cells barrier dysfunction through endoplasmic reticulum stress mediated apoptosis by p-eif2α/CHOP pathway. J Cell Physiol 2021; 237:1389-1405. [PMID: 34661912 DOI: 10.1002/jcp.30603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 02/06/2023]
Abstract
Heat stress (HS) induced by high ambient temperatures compromises intestinal epithelial cell. However, the underlying mechanisms by which HS causes intestinal barrier dysfunction remain unclear. In this study, we established an in vitro acute-HS-induced intestinal damage using porcine small intestinal epithelial cell (IPEC-J2) that exposed to the high temperatures (43°C) for 2 h. The cell proliferation, apoptosis, tight junction (TJ) barrier integrity and transcriptomic profiles were measured. The results showed that HS decreased cell viability while increased proapoptotic signaling evidenced by Bax/bcl2 ratio, cytochrome C release to cytosol and active-caspase 3 increases (p < 0.01). HS led to decreased transepithelial electrical resistance, increased cell permeability, and downregulated TJ proteins including ZO1, occludin, and claudin 3 (p < 0.05). Transcriptome sequencing and KEGG pathway analysis revealed HS-induced cell cycle arrest and activation of endoplasmic reticulum stress (ERS) response mediated by a critical transcript eif2α and proapoptotic molecule DDIT3 (known as CHOP). Furthermore, inhibition of ERS by 4-phenylbutyrate (4-PBA) administration and knockdown of eif2α and CHOP significantly attenuated IPEC-J2 cells apoptosis (p < 0.05). Transmission electron microscopy analysis suggested that 4-PBA inhibited HS-induced increase in ER lumen diameter, indicating ultrastructural sign of ERS. In addition, HS-induced impairment of TJs was significantly attenuated by 4-PBA (p < 0.05). Collectively, HS induces ERS and activates the p-eif2α/CHOP signaling pathway to impair epithelial barrier integrity through triggering the intestinal epithelial cell apoptosis.
Collapse
Affiliation(s)
- Yan-Jun Cui
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Zhejiang A&F University, Lin'an, China
| | - Le-Yi Chen
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Zhejiang A&F University, Lin'an, China
| | - Xu Zhou
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Zhejiang A&F University, Lin'an, China
| | - Zhi-Ning Tang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Zhejiang A&F University, Lin'an, China
| | - Chong Wang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Zhejiang A&F University, Lin'an, China
| | - Hai-Feng Wang
- College of Animal Science, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, China
| |
Collapse
|
5
|
Zhang C, Wang T, Cui T, Liu S, Zhang B, Li X, Tang J, Wang P, Guo Y, Wang Z. Genome-Wide Phylogenetic Analysis, Expression Pattern, and Transcriptional Regulatory Network of the Pig C/EBP Gene Family. Evol Bioinform Online 2021; 17:11769343211041382. [PMID: 34471342 PMCID: PMC8404664 DOI: 10.1177/11769343211041382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 08/02/2021] [Indexed: 11/16/2022] Open
Abstract
The CCAAT/enhancer binding protein (C/EBP) transcription factors (TFs) regulate many important biological processes, such as energy metabolism, inflammation, cell proliferation etc. A genome-wide gene identification revealed the presence of a total of 99 C/EBP genes in pig and 19 eukaryote genomes. Phylogenetic analysis showed that all C/EBP TFs were classified into 6 subgroups named C/EBPα, C/EBPβ, C/EBPδ, C/EBPε, C/EBPγ, and C/EBPζ. Gene expression analysis showed that the C/EBPα, C/EBPβ, C/EBPδ, C/EBPγ, and C/EBPζ genes were expressed ubiquitously with inconsistent expression patterns in various pig tissues. Moreover, a pig C/EBP regulatory network was constructed, including C/EBP genes, TFs and miRNAs. A total of 27 feed-forward loop (FFL) motifs were detected in the pig C/EBP regulatory network. Based on the RNA-seq data, gene expression patterns related to FFL sub-network were analyzed in 27 adult pig tissues. Certain FFL motifs may be tissue specific. Functional enrichment analysis indicated that C/EBP and its target genes are involved in many important biological pathways. These results provide valuable information that clarifies the evolutionary relationships of the C/EBP family and contributes to the understanding of the biological function of C/EBP genes.
Collapse
Affiliation(s)
- Chaoxin Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Tao Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Tongyan Cui
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Shengwei Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Bing Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Xue Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Jian Tang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Peng Wang
- HeiLongJiang provincial Husbandry Dapartment, Harbin, China
| | - Yuanyuan Guo
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
| | - Zhipeng Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
- Bioinformatics Center, Northeast Agricultural University, Harbin, China
- DaBeiNong Group, Beijing, China
| |
Collapse
|
6
|
Trueperella pyogenes pyolysin inhibits lipopolysaccharide-induced inflammatory response in endometrium stromal cells via autophagy- and ATF6-dependent mechanism. Braz J Microbiol 2021; 52:939-952. [PMID: 33454924 DOI: 10.1007/s42770-021-00422-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022] Open
Abstract
Trueperella pyogenes (T. pyogenes) is a common opportunistic pathogen of many livestock and play an important regulation role during multibacterial infection and interaction with the host by its primary virulence factor pyolysin (PLO). The purpose of this study was to investigate the regulation role of PLO which serve as a combinational pathogen with lipopolysaccharide (LPS) during endometritis. In this study, the expression of bioactive recombinant PLO (rPLO) in a prokaryotic expression system and its purification are described. Moreover, we observed that rPLO inhibited the innate immune response triggered by LPS and that methyl-β-cyclodextrin (MBCD) abrogated this inhibitory effect in goat endometrium stromal cells (gESCs). Additionally, we show from pharmacological and genetic studies that rPLO-induced autophagy represses gene expression by inhibiting NLRP3 inflammasome activation. Importantly, this study reported that ATF6 serves as a primary regulator of the cellular inflammatory reaction to rPLO. Overall, these observations suggest that T. pyogenes PLO could create an immunosuppressive environment for other pathogens invasion by regulating cellular signaling pathways.
Collapse
|
7
|
Guo J, Bai Y, Liao J, Wang S, Han Q, Tang Z. Copper Induces Apoptosis Through Endoplasmic Reticulum Stress in Skeletal Muscle of Broilers. Biol Trace Elem Res 2020; 198:636-643. [PMID: 32080790 DOI: 10.1007/s12011-020-02076-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/10/2020] [Indexed: 12/25/2022]
Abstract
The purpose of this research was to investigate whether copper (Cu) exposure could induce apoptosis via endoplasmic reticulum stress (ERS) in skeletal muscle of broilers. A total of 240 one-day-old chickens were randomly divided into four groups by free access; the diets are as follows: control diet (Cu 11 mg/kg, control group) and high level of Cu diets (Cu 110 mg/kg, group I; Cu 220 mg/kg, group II; Cu 330 mg/kg, group III). The skeletal muscle tissues were collected on day 49 for further examination. The content of Cu, histopathology, and the expression levels of the genes and proteins related to ERS and apoptosis were detected. Results showed that the Cu levels in skeletal muscle were increased in a dose-dependent manner. Meanwhile, the spaces between the muscle fibers were wider with the increase of Cu content, and the myolysis was observed in group III. Besides, the mRNA expression levels of GRP78, GRP94, eIF2α, ATF6, XBP1, CHOP, Caspase-12, and Caspase3 were markedly increased in treated groups compared with control group, and the protein expression levels of GRP78, Caspase3, Active-Caspase3 and JNK were significantly elevated with the increase of dietary Cu. In summary, these findings suggested that Cu could induce apoptosis through ERS in skeletal muscle of broilers.
Collapse
Affiliation(s)
- Jianying Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Yuman Bai
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Shuzhou Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Qingyue Han
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China.
| |
Collapse
|
8
|
Dietary fermented soybean meal inclusion improves growth performance and ileal barrier function of the weaned piglets challenged by enterotoxigenic Escherichia coli K88. Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114596] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
Gao J, Guo Y, Liu Y, Yan J, Zhou J, An X, Su P. Protective effect of FBXL10 in myocardial ischemia reperfusion injury via inhibiting endoplasmic reticulum stress. Respir Med 2019; 161:105852. [PMID: 32056726 DOI: 10.1016/j.rmed.2019.105852] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 12/10/2019] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the mechanism and effect of FBXL10 in myocardial ischemia reperfusion injury in vivo and in vitro. METHODS The myocardial ischemia reperfusion (I/R) model was established by 30 min of coronary occlusion followed by 2 h of reperfusion in rats. Western blot and TUNEL assay were used to measure the apoptosis during I/R. The expression levels of endoplasmic reticulum related proteins in myocardial tissues and H9c2 cells were detected by immunohistochemistry staining and immunofluorescence staining. Flow cytometry and CCK-8 were used to detect the apoptosis and viability of H9c2 cells. RESULTS The results revealed that FBXL10 significantly reduced myocardial infarction, improved the pathological morphology of myocardium, markedly reduced inflammatory response in the myocardial ischemia reperfusion rats. Moreover the expressions of endoplasmic reticulum stress key proteins were caused by I/R were suppressed significantly by FBXL10 treatment, including CHOP, GRP78, ATF4 and p-PERK. Additionally FBXL10 inhibited the expression of endoplasmic reticulum stress key proteins in H/R H9c2 cells. Furthermore, FBXL10 reduced the levels of apoptotic cells and inflammatory response compared with I/R and H/R group. CONCLUSION Taken together, we found that FBXL10 could attenuate I/R injury through inhibiting endoplasmic reticulum stress (ERs).
Collapse
Affiliation(s)
- Jie Gao
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Yulin Guo
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Yan Liu
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Jun Yan
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Jian Zhou
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Xiangguang An
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China
| | - Pixiong Su
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital University of Medical Sciences, China.
| |
Collapse
|
10
|
Fang L, Li F, Gu C. GDF-15: A Multifunctional Modulator and Potential Therapeutic Target in Cancer. Curr Pharm Des 2019; 25:654-662. [PMID: 30947652 DOI: 10.2174/1381612825666190402101143] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/26/2019] [Indexed: 12/12/2022]
Abstract
Various pathological processes are associated with the aberrant expression and function of cytokines, especially those belonging to the transforming growth factor-β (TGF-β) family. Nevertheless, the functions of members of the TGF-β family in cancer progression and therapy are still uncertain. Growth differentiation factor- 15, which exists in intracellular and extracellular forms, is classified as a divergent member of the TGF-β superfamily. It has been indicated that GDF-15 is also connected to the evolution of cancer both positively and negatively depending upon the cellular state and environment. Under normal physiological conditions, GDF-15 inhibits early tumour promotion. However, its abnormal expression in advanced cancers causes proliferation, invasion, metastasis, cancer stem cell formation, immune escape and a reduced response to therapy. As a clinical indicator, GDF-15 can be used as a tool for the diagnosis and therapy of an extensive scope of cancers. Although some basic functions of GDF-15 are noncontroversial, their mechanisms remain unclear and complicated at the molecular level. Therefore, GDF-15 needs to be further explored and reviewed.
Collapse
Affiliation(s)
- Lei Fang
- Department of Thoracic surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Fengzhou Li
- Department of Thoracic surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Chundong Gu
- Department of Thoracic surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| |
Collapse
|
11
|
Jiang Q, Tian J, Liu G, Yin Y, Yao K. Endoplasmic Reticulum Stress and Unfolded Protein Response Pathways Involved in the Health-Promoting Effects of Allicin on the Jejunum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6019-6031. [PMID: 31067048 DOI: 10.1021/acs.jafc.9b02180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Intestinal endoplasmic reticulum stress (ERS) triggered by adverse factors disturbs the normal function of the intestine. Allicin has been reported to promote intestinal health and development. In the present study, we established in vivo (35-day-old weaned piglets, 4-week-old mice) and in vitro (IPEC-J2 cell line) ERS models to explore the possible mechanisms by which allicin may benefit intestinal health. This study revealed the following: (1) allicin supplementation improved intestinal morphological indices and ameliorated mild ERS in the jejunum of the weaned piglets; (2) allicin supplementation decreased cellular reactive oxygen species and upregulated the XBP-1s signaling pathways in IPEC-J2 cells; (3) allicin supplementation reduced the prolonged ERS-mediated apoptosis of IPEC-J2 cells and in the jejunal tissues of the KM mice; (4) allicin supplementation enhanced the intercellular junction protein levels of jejunal cells by alleviating the prolonged ERS. These novel findings suggest that eating garlic could alleviate some intestinal malfunctions associated with ERS.
Collapse
Affiliation(s)
- Qian Jiang
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100043 , P.R. China
- Department of Animal Science , University of Manitoba , Winnipeg , MB R3T 2N2 , Canada
| | - Junquan Tian
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Gang Liu
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Kang Yao
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| |
Collapse
|
12
|
Liu C, Fu Q, Mu R, Wang F, Zhou C, Zhang L, Yu B, Zhang Y, Fang T, Tian F. Dexmedetomidine alleviates cerebral ischemia-reperfusion injury by inhibiting endoplasmic reticulum stress dependent apoptosis through the PERK-CHOP-Caspase-11 pathway. Brain Res 2018; 1701:246-254. [PMID: 30201260 DOI: 10.1016/j.brainres.2018.09.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/14/2018] [Accepted: 09/06/2018] [Indexed: 01/07/2023]
Abstract
Dexmedetomidine (Dex) has the neuroprotective effect on cerebral ischemia-reperfusion injury (CIRI). But the mechanism is not yet clear. In this study, we established a model of middle cerebral artery occlusion (MCAO) and treated primary cortical neurons with oxygen glucose deprivation (OGD), followed by Dex treatment. Neurological protection of Dex was then assessed by neurological deficit score, brain edema, TTC staining, TUNEL assay, Western blot analysis, immunohistochemistry, and RT-PCR. The results showed that Dex significantly reduced the neurological deficit score, brain edema and cerebral infarction area due to CIRI. After Dex treatment, the expression levels of ER stress-related apoptosis pathway proteins (GRP78, p-PERK, CHOP and Cleaved-caspase-3) were significantly decreased and the apoptosis of brain cells was also significantly reduced. Immunohistochemistry showed that expression and nuclear localization of CHOP decreased significantly after the application of Dex. The downstream apoptotic protein caspase-11 mediated by PERK-CHOP was also markedly inhibited by Dex. In conclusion, our results suggested that Dex reduced ER stress-induced apoptosis after CIRI. Its protective mechanism may be related to PERK-CHOP-Caspase-11 dependent signaling pathway.
Collapse
Affiliation(s)
- Chong Liu
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Qiang Fu
- Department of Critical Care Medicine, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China.
| | - Rong Mu
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Fang Wang
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Chunjing Zhou
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Li Zhang
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Baojin Yu
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Yang Zhang
- Department of Anaesthesiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Tao Fang
- Central Laboratory, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China
| | - Fengshi Tian
- Department of Cardiology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin 300140, China.
| |
Collapse
|
13
|
[Protective effect of prostaglandin E1 against brain injury induced by hyperoxia in neonatal rats]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2018; 20. [PMID: 29530125 PMCID: PMC7389790 DOI: 10.7499/j.issn.1008-8830.2018.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To investigate the protective effect of prostaglandin E1 (PGE-1) against brain injury induced by hyperoxia in neonatal rats and observe the changes in the expression of glucose-regulated protein 78 (GRP78) and cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP), and to provide a theoretical basis for the clinical application of PGE-1 in the treatment of neonatal brain injury induced by hyperoxia. METHODS Sixty neonatal Wistar rats were randomly divided into air control group, hyperoxic brain injury model group, and hyperoxic brain injury+PGE-1 group. All rats except those in the air control group were treated to establish a hyperoxic brain injury model. From the first day of modeling, the rats in the hyperoxia brain injury+PGE-1 group were intraperitoneally injected with PGE-1 2 μg/kg daily for 7 consecutive days, while the other two groups were treated with normal saline instead. The water content of brain tissue was measured; the pathological changes of brain tissue were evaluated by hematoxylin-eosin staining; the apoptosis of brain cells was assessed by nuclear staining combined with TUNEL staining; the protein expression of GRP78 and CHOP in brain tissue was measured by Western blot. RESULTS The water content of brain tissue in the hyperoxic brain injury model group was significantly higher than that in the hyperoxic brain injury+PGE-1 group and air control group (P<0.05); the water content of brain tissue in the hyperoxic brain injury+PGE-1 group was significantly higher than that in the air control group (P<0.05). The pathological section of brain tissue showed inflammatory cell infiltration and mild cerebrovascular edema in the brain parenchyma in the hyperoxic brain injury model group; the periparenchymal inflammation and edema in the hyperoxic brain injury+PGE-1 group were milder than those in the hyperoxic brain injury model group. The apoptosis index of brain tissue in the hyperoxic brain injury model group was significantly higher than that in the hyperoxic brain injury+PGE-1 group and air control group (P<0.05); the apoptosis index of brain tissue in the hyperoxic brain injury+PGE-1 group was significantly higher than that in the air control group (P<0.05). The protein expression of GRP78 and CHOP in brain tissue was significantly higher in the hyperoxic brain injury model group than in the hyperoxic brain injury+PGE-1 group and air control group (P<0.05); the protein expression of GRP78 and CHOP was significantly higher in the hyperoxic brain injury+PGE-1 group than in the air control group (P<0.05). CONCLUSIONS PGE-1 has a protective effect against hyperoxia-induced brain injury in neonatal rats, which may be related to the inhibition of cell apoptosis by down-regulating the expression of GRP78 and CHOP.
Collapse
|
14
|
l-Glutamine Attenuates Apoptosis Induced by Endoplasmic Reticulum Stress by Activating the IRE1α-XBP1 Axis in IPEC-J2: A Novel Mechanism of l-Glutamine in Promoting Intestinal Health. Int J Mol Sci 2017; 18:ijms18122617. [PMID: 29206200 PMCID: PMC5751220 DOI: 10.3390/ijms18122617] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/28/2017] [Accepted: 12/01/2017] [Indexed: 12/18/2022] Open
Abstract
Intestinal absorption and barrier malfunctions are associated with endoplasmic reticulum stress (ERS) in the intestine. We induced ERS by exposing the intestinal porcine epithelial cell line J2 (IPEC-J2) to tunicamycin (TUNI) to explore the potential of l-glutamine to reduce ERS-induced apoptosis. Our experiments demonstrated that exposing cells to TUNI results in spontaneous ERS and encourages the upregulation of glucose-regulated protein 78 (GRP78). Prolonged TUNI-induced ERS was found to increase apoptosis mediated by C/enhancer binding protein homologous protein (CHOP), accompanied by GRP78 downregulation. Treatment with l-glutamine was found to promote cell proliferation within the growth medium but to have little effect in basic Dulbecco’s modified Eagle medium. Finally, in the milieu of TUNI-induced ERS, l-glutamine was found to maintain a high level of GRP78, alleviate CHOP-mediated apoptosis and activate the inositol requiring enzyme 1α (IRE1α)-X-box binding protein 1 (XBP1) axis. A specific inhibitor of the IRE1α-XBP1 axis reversed the protective effect of l-glutamine by blocking the expression of IRE1α/XBP1s. We propose that the functional effect of l-glutamine on intestinal health may be partly due to its modulation of ERS and CHOP-mediated apoptosis.
Collapse
|