1
|
Hypoxia Induces Growth Differentiation Factor 15 to Promote the Metastasis of Colorectal Cancer via PERK-eIF2 α Signaling. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5958272. [PMID: 32076610 PMCID: PMC7008299 DOI: 10.1155/2020/5958272] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/06/2019] [Accepted: 08/08/2019] [Indexed: 12/17/2022]
Abstract
Hypoxia plays an essential role in orchestrating Epithelial-mesenchymal transition and promoting metastasis of colorectal cancer. However, the underlying mechanisms are still not well elucidated. Here, we present that hypoxic exposure causes endoplasmic reticulum stress and activates the unfolded protein response pathways, which drives GDF15 expression in colorectal cancer cells. Mechanistically, upregulated CHOP led by activated PERK-eIF2α signaling promotes GDF15 transcription via directly binding to its promoter. Further study implicates that hypoxia-induced GDF15 is required for the EMT and invasion of colorectal cancer cells; enforced expression of GDF15 promotes the mitochondrial oxidation of fatty acids in colorectal cancer cells. Moreover, the abrogation of GDF15 results in smaller xenograft tumors in size and impaired metastasis. GDF15 is expressed much more in tumor tissues of CRC patients and displays positive correlations with CHOP and HIF1α in mRNA levels. Our study demonstrates a novel molecular mechanism underlying hypoxia-promoted metastasis of CRC and provides PERK signaling-regulated GDF15 as a new and promising therapeutic target for clinical treatment and drug discovery.
Collapse
|
2
|
Dai F, Dong S, Rong Z, Xuan Q, Chen P, Chen M, Fan Y, Gao Q. Expression of inositol-requiring enzyme 1β is downregulated in azoxymethane/dextran sulfate sodium-induced mouse colonic tumors. Exp Ther Med 2019; 17:3181-3188. [PMID: 30936991 DOI: 10.3892/etm.2019.7317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 11/22/2018] [Indexed: 12/28/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a risk factor in colon cancer. Endoplasmic reticulum (ER) stress is associated with IBD and cancer. In the current study an azoxymethane (AOM) and dextran sulfate sodium (DSS)-induced mouse colonic tumor model was established to analyze the expression of ER stress chaperone molecules. Female C57BL/6 mice were intraperitoneally injected with 12 mg/kg AOM. On the 7th day following AOM injection, mice were treated with 1% DSS supplemented to the drinking water for 7 days, then followed by 14 days of normal drinking water. The cycle of 7 days DSS plus 14 days normal water was repeated twice and colonic tumors were evaluated for their number and size. Mice in the control group were injected with saline and received normal drinking water for the course of the experiment. mRNA levels of cytokines, inositol-requiring enzyme (IRE)1α and 1β, their downstream targets X-box binding protein (XBP)1u, XBP1s and mucin (MUC) 2 and interleukin (IL)-6, IL-8 and tumor necrosis factor (TNF)-α were detected by reverse transcription-quantitative polymerase chain reaction. IRE1α, IRE1β and MUC2 protein expression was evaluated by immunohistochemistry, and IRE1α and IRE1β levels were further assessed by western blot analysis. It was observed that tumors developed in the distal colon of mice treated with AOM/DSS. IL-6, IL-8 and TNF-α mRNA levels were significantly increased in mice of the tumor group compared with mice of the control group. There were no significant differences in IRE1α mRNA and protein expression between the two groups and XBP1s mRNA levels were increased in the tumor compared with the control group. IRE1β and MUC2 mRNA levels were significantly decreased in the tumor compared with the control group (decreased by 42 and 30%, respectively). IRE1β and MUC2 proteins were predominately expressed in colonic epithelial cells and expression was decreased in the tumor compared with the control group. In conclusion, the downregulation of IRE1β and MUC2 may reduce the ability of colon tissues to resist inflammation, thus promoting the occurrence and development of colonic tumors.
Collapse
Affiliation(s)
- Faliang Dai
- Department of Gastroenterology and Hepatology, Beijing Rehabilitation Hospital, Capital Medical University, Beijing 100144, P.R. China.,Department of Gastroenterology and Hepatology, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China.,Department of Surgery, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China.,Department of Minimally Invasive Interventional Oncology, Caoxian People's Hospital, Heze, Shandong 274400, P.R. China
| | - Shizhen Dong
- Department of Clinical Laboratory Diagnosis, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Zhenhua Rong
- Department of Minimally Invasive Interventional Oncology, Caoxian People's Hospital, Heze, Shandong 274400, P.R. China
| | - Qingxia Xuan
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China.,Department of Ultrasound, Women and Children Health Care Center of Luoyang, Luoyang, Henan 471000, P.R. China
| | - Pan Chen
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Menglu Chen
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Yonggang Fan
- Department of Surgery, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Qiang Gao
- Department of Gastroenterology and Hepatology, Beijing Rehabilitation Hospital, Capital Medical University, Beijing 100144, P.R. China.,Department of Gastroenterology and Hepatology, The First Affiliated Hospital and Clinical Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| |
Collapse
|
3
|
Wang X, Cui X, Zhu C, Li M, Zhao J, Shen Z, Shan X, Wang L, Wu H, Shen Y, Ni Y, Zhang D, Zhou G. FKBP11 protects intestinal epithelial cells against inflammation‑induced apoptosis via the JNK‑caspase pathway in Crohn's disease. Mol Med Rep 2018; 18:4428-4438. [PMID: 30221722 PMCID: PMC6172375 DOI: 10.3892/mmr.2018.9485] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 07/31/2018] [Indexed: 12/12/2022] Open
Abstract
Endoplasmic reticulum (ER) stress in intestinal epithelial cells (IECs) has an important role in the pathogenesis of Crohn's disease (CD). FK506 binding protein 11 (FKBP11), a member of the peptidyl‑prolyl cis‑trans isomerase family, is involved in the unfolded protein response (UPR) and is closely associated with inflammation. Previous bioinformatics analysis revealed a potential association between FKBP11 and human CD. Thus, the present study aimed to investigate the potential significance of FKBP11 in IEC homeostasis and CD. In the present study, increased expression of FKBP11 was detected in the intestinal inflammatory tissues of patients with CD. Furthermore, the results of the present study revealed that overexpression of FKBP11 was accompanied by increased expression levels of the ER stress marker 78 kDa glucose‑regulated protein in the colon tissues of a 2, 4, 6‑trinitrobenzenesulphonic acid‑induced mouse colitis model. Using interferon‑γ (IFN‑γ)/tumor necrosis factor‑α (TNF‑α)‑stimulated IECs as an ER stress and apoptosis cell model, the associated of FKBP11 with ER stress and apoptosis levels was confirmed in IECs. Overexpression of FKBP11 was revealed to significantly attenuate the elevated expression of pro‑apoptotic proteins (Bcl2 associated X apoptosis regulator, caspase‑12 and active caspase‑3), suppress the phosphorylation of c‑Jun N‑terminal kinase (JNK), and decrease apoptosis of IFN‑γ/TNF‑α stimulated IECs. Knockdown of FKBP11 by transfection with small interfering RNA further validated the aforementioned results. In conclusion, these results suggest that the UPR protein FKBP11 may protect IECs against IFN‑γ/TNF‑α induced apoptosis by inhibiting the ER stress‑associated JNK/caspase apoptotic pathway in CD.
Collapse
Affiliation(s)
- Xiaotong Wang
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Xiaopeng Cui
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Chuanwu Zhu
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Ming Li
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Juan Zhao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhongyi Shen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xiaohang Shan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Liang Wang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Han Wu
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Yanting Shen
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - You Ni
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Dongmei Zhang
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Guoxiong Zhou
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| |
Collapse
|
4
|
Kökten T, Gibot S, Lepage P, D'Alessio S, Hablot J, Ndiaye NC, Busby-Venner H, Monot C, Garnier B, Moulin D, Jouzeau JY, Hansmannel F, Danese S, Guéant JL, Muller S, Peyrin-Biroulet L. TREM-1 Inhibition Restores Impaired Autophagy Activity and Reduces Colitis in Mice. J Crohns Colitis 2018; 12:230-244. [PMID: 28961797 DOI: 10.1093/ecco-jcc/jjx129] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 09/15/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Triggering receptor expressed on myeloid cells-1 [TREM-1] is known to amplify inflammation in several diseases. Autophagy and endoplasmic reticulum [ER] stress, which activate the unfolded protein response [UPR], are closely linked and defects in these pathways contribute to the pathogenesis of inflammatory bowel disease [IBD]. Both autophagy and UPR are deeply involved in host-microbiota interactions for the clearance of intracellular pathogens, thus contributing to dysbiosis. We investigated whether inhibition of TREM-1 would prevent aberrant inflammation by modulating autophagy and ER stress and preventing dysbiosis. METHODS An experimental mouse model of colitis was established by dextran sulphate sodium treatment. TREM-1 was inhibited, either pharmacologically by LR12 peptide or genetically with Trem-1 knock-out [KO] mice. Colon tissues and faecal pellets of control and colitic mice were used. Levels of macroautophagy, chaperone-mediated autophagy [CMA], and UPR proteins were evaluated by western blotting. The composition of the intestinal microbiota was assessed by MiSeq sequencing in both LR12-treated and KO animals. RESULTS We confirmed that inhibition of TREM-1 attenuates the severity of colitis clinically, endoscopically and histologically. We observed an increase in macroautophagy [ATG1/ULK-1, ATG13, ATG5, ATG16L1, and MAP1LC3-I/II] and in CMA [HSPA8 and HSP90AA1], whereas there was a decrease in the UPR [PERK, IRE-1α, and ATF-6α] protein expression levels in TREM-1 inhibited colitic mice. TREM-1 inhibition prevented dysbiosis. CONCLUSIONS TREM-1 may represent a novel drug target for the treatment of IBD, by modulating autophagy activity and ER stress.
Collapse
Affiliation(s)
- Tunay Kökten
- Faculté de Médecine, Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Sébastien Gibot
- Faculté de Médecine, Université de Lorraine, Vandœuvre-Lès-Nancy, France.,Service de Réanimation Médicale, Hôpital Central, Nancy, France
| | - Patricia Lepage
- Micalis Institute, Université Paris-Saclay, Jouy-en-Josas, France
| | - Silvia D'Alessio
- Department of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center and Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Julie Hablot
- Ingénierie Moléculaire et Physiopathologie Articulaire [IMoPA], Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | | | - Hélène Busby-Venner
- Département d'Anatomie et Cytologie Pathologiques, Centre Hospitalier Universitaire Nancy-Brabois, Vandœuvre-Lès-Nancy, France
| | - Céline Monot
- Micalis Institute, Université Paris-Saclay, Jouy-en-Josas, France
| | - Benjamin Garnier
- Immunopathologie et Chimie Thérapeutique, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
| | - David Moulin
- Ingénierie Moléculaire et Physiopathologie Articulaire [IMoPA], Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Jean-Yves Jouzeau
- Ingénierie Moléculaire et Physiopathologie Articulaire [IMoPA], Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Franck Hansmannel
- Faculté de Médecine, Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Silvio Danese
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,Humanitas Clinical and Research Center, Milan, Italy
| | - Jean-Louis Guéant
- Faculté de Médecine, Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Sylviane Muller
- Immunopathologie et Chimie Thérapeutique, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
| | - Laurent Peyrin-Biroulet
- Faculté de Médecine, Université de Lorraine, Vandœuvre-Lès-Nancy, France.,Département d'Hépatogastroentérologie, Centre Hospitalier Universitaire Nancy-Brabois, Vandœuvre-Lès-Nancy, France
| |
Collapse
|
5
|
Activation of IRE1α-XBP1 pathway induces cell proliferation and invasion in colorectal carcinoma. Biochem Biophys Res Commun 2016; 470:75-81. [DOI: 10.1016/j.bbrc.2015.12.119] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 12/28/2015] [Indexed: 12/11/2022]
|