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Li QY, Guo Q, Luo WM, Luo XY, Ji YM, Xu LQ, Guo JL, Shi RS, Li F, Lin CY, Zhang J, Ke D. Overexpression of MTFR1 promotes cancer progression and drug-resistance on cisplatin and is related to the immune microenvironment in lung adenocarcinoma. Aging (Albany NY) 2024; 16:66-88. [PMID: 38170222 PMCID: PMC10817379 DOI: 10.18632/aging.205338] [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: 07/16/2023] [Accepted: 11/10/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVE The roles of MTFR1 in the drug resistance of lung adenocarcinoma (LAC) to cisplatin remain unexplored. In this study, the expression, clinical values and mechanisms of MTFR1 were explored, and the relationship between MTFR1 expression and immune microenvironment was investigated in LAC using bioinformatics analysis, cell experiments, and meta-analysis. METHODS MTFR1 expression and clinical values, and the relationship between MTFR1 expression and immunity were explored, through bioinformatics analysis. The effects of MTFR1 on the growth, migration and cisplatin sensitivity of LAC cells were identified using cell counting kit-8, wound healing and Transwell experiments. Additionally, the mechanisms of drug resistance of LAC cells involving MTFR1 were investigated using western blotting. RESULTS MTFR1 was elevated in LAC tissues. MTFR1 overexpression was associated with sex, age, primary therapy outcome, smoking, T stage, unfavourable prognosis and diagnostic value and considered an independent risk factor for an unfavourable prognosis in patients with LAC. MTFR1 co-expressed genes involved in the cell cycle, oocyte meiosis, DNA replication and others. Moreover, interfering with MTFR1 expression inhibited the proliferation, migration and invasion of A549 and A549/DDP cells and promoted cell sensitivity to cisplatin, which was related to the inhibition of p-AKT, p-P38 and p-ERK protein expression. MTFR1 overexpression was associated with stromal, immune and estimate scores along with natural killer cells, pDC, iDC and others in LAC. CONCLUSIONS MTFR1 overexpression was related to the unfavourable prognosis, diagnostic value and immunity in LAC. MTFR1 also participated in cell growth and migration and promoted the drug resistance of LAC cells to cisplatin via the p-AKT and p-ERK/P38 signalling pathways.
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Affiliation(s)
- Qian-Yun Li
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qiang Guo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Wei-Min Luo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiang-Yu Luo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yan-Mei Ji
- Department of Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Li-Qiang Xu
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jia-Long Guo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Rong-Shu Shi
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Feng Li
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Cheng-Yi Lin
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jun Zhang
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Di Ke
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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Bellese G, Tagliatti E, Gagliani MC, Santamaria S, Arnaldi P, Falletta P, Rusmini P, Matteoli M, Castagnola P, Cortese K. Neratinib is a TFEB and TFE3 activator that potentiates autophagy and unbalances energy metabolism in ERBB2+ breast cancer cells. Biochem Pharmacol 2023; 213:115633. [PMID: 37269887 DOI: 10.1016/j.bcp.2023.115633] [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: 03/25/2023] [Revised: 05/17/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023]
Abstract
Neratinib (NE) is an irreversible pan-ERBB tyrosine kinase inhibitor used to treat breast cancers (BCa) with amplification of the ERBB2/HER2/Neu gene or overexpression of the ERBB2 receptor. However, the mechanisms behind this process are not fully understood. Here we investigated the effects of NE on critical cell survival processes in ERBB2+ cancer cells. By kinome array analysis, we showed that NE time-dependently inhibited the phosphorylation of two distinct sets of kinases. The first set, including ERBB2 downstream signaling kinases such as ERK1/2, ATK, and AKT substrates, showed inhibition after 2 h of NE treatment. The second set, which comprised kinases involved in DNA damage response, displayed inhibition after 72 h. Flow cytometry analyses showed that NE induced G0/G1 cell cycle arrest and early apoptosis. By immunoblot, light and electron microscopy, we revealed that NE also transiently induced autophagy, mediated by increased expression levels and nuclear localization of TFEB and TFE3. Altered TFEB/TFE3 expression was accompanied by dysregulation of mitochondrial energy metabolism and dynamics, leading to a decrease in ATP production, glycolytic activity, and a transient downregulation of fission proteins. Increased TFEB and TFE3 expression was also observed in ERBB2-/ERBB1 + BCa cells, supporting that NE may act through other ERBB family members and/or other kinases. Overall, this study highlights NE as a potent activator of TFEB and TFE3, leading to the suppression of cancer cell survival through autophagy induction, cell cycle arrest, apoptosis, mitochondrial dysfunction and inhibition of DNA damage response.
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Affiliation(s)
- Grazia Bellese
- DIMES, Department of Experimental Medicine, Cellular Electron Microscopy Lab, Università di Genova, Genova, Italy
| | - Erica Tagliatti
- IRCCS Humanitas Research Hospital, Laboratory of Pharmacology and Brain Pathology, via Manzoni 56, 20089 Rozzano, Milano, Italy; Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Maria Cristina Gagliani
- DIMES, Department of Experimental Medicine, Cellular Electron Microscopy Lab, Università di Genova, Genova, Italy
| | - Sara Santamaria
- DIMES, Department of Experimental Medicine, Cellular Electron Microscopy Lab, Università di Genova, Genova, Italy
| | - Pietro Arnaldi
- DIMES, Department of Experimental Medicine, Cellular Electron Microscopy Lab, Università di Genova, Genova, Italy
| | - Paola Falletta
- Experimental Imaging Center, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Paola Rusmini
- Dipartimento di Scienze Farmacologiche e Biomolecolari "Rodolfo Paoletti", Dipartimento di Eccellenza 2018-2027, Università degli Studi di Milano, Milan, Italy
| | - Michela Matteoli
- IRCCS Humanitas Research Hospital, Laboratory of Pharmacology and Brain Pathology, via Manzoni 56, 20089 Rozzano, Milano, Italy; CNR Institute of Neuroscience, Milano, Italy
| | | | - Katia Cortese
- DIMES, Department of Experimental Medicine, Cellular Electron Microscopy Lab, Università di Genova, Genova, Italy.
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Luo BH, Huang JQ, Huang CY, Tian P, Chen AZ, Wu WH, Ma XM, Yuan YX, Yu L. Screening of Lymphoma Radiotherapy-Resistant Genes with CRISPR Activation Library. Pharmgenomics Pers Med 2023; 16:67-80. [PMID: 36743888 PMCID: PMC9897072 DOI: 10.2147/pgpm.s386085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/05/2022] [Indexed: 02/03/2023] Open
Abstract
Objective The objective of this study was to screen lymphoma radiotherapy-resistant genes using CRISPR activation (CRISPRa). Methods The Human CRISPRa library virus was packaged and then transfected into lymphoma cells to construct an activation library cell line, which was irradiated at the minimum lethal radiation dose to screen radiotherapy-resistant cells. Radiotherapy-resistant cell single-guide RNA (sgRNA) was first amplified by quantitative polymerase chain reaction (qPCR) in the coding region and then subject to next-generation sequencing (NGS) and bioinformatics analysis to screen radiotherapy-resistant genes. Certain radiotherapy-resistant genes were then selected to construct activated cell lines transfected with a single gene so as to further verify the relationship between gene expression and radiotherapy resistance. Results A total of 16 radiotherapy-resistant genes, namely, C20orf203, MTFR1, TAF1L, MYADM, NIPSNAP1, ZUP1, RASL11A, PSMB2, PSMA6, OR8H3, TMSB4Y, CD300LF, EEF1A1, ATP6AP1L, TRAF3IP2, and SNRNP35, were screened based on the NGS results and bioinformatics analysis of the radiotherapy-resistant cells. Activated cell lines transfected with a single gene were constructed using 10 radiotherapy-resistant genes. The qPCR findings showed that, when compared with the control group, the experimental group had significantly up-regulated mRNA expression of MTFR1, NIPSNAP1, ZUP1, PSMB2, PSMA6, EEF1A1, TMSB4Y and TAF1L (p < 0.05). No significant difference in the mRNA expression of AKT3 or TRAF3IP2 (p > 0.05) was found between the two groups (p > 0.05). Conclusion The 16 genes screened are potential lymphoma radiotherapy-resistant genes. It was initially determined that the high expression of 8 genes was associated with lymphoma radiotherapy resistance, and these genes could serve as the potential biomarkers for predicting lymphoma radiotherapy resistance or as new targets for therapy.
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Affiliation(s)
- Bi-Hua Luo
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Jian-Qing Huang
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Chun-Yu Huang
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Pan Tian
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Ai-Zhen Chen
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Wei-Hao Wu
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Xiao-Mei Ma
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Yue-Xing Yuan
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China
| | - Lian Yu
- Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, Fujian, People’s Republic of China,Correspondence: Lian Yu, Department of Hematology, Longyan First Hospital Affiliated Fujian Medical University, No. 105 of Jiuyibei Road, Xinluo District, Fujian, 364000, People’s Republic of China, Tel +86 13859572936, Email
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Li H, Zhu X, Zhang W, Lu W, Liu C, Ma J, Zang R, Song Y. Association of High Expression of Mitochondrial Fission Regulator 2 with Poor Survival of Patients with Esophageal Squamous Cell Carcinoma. J Cancer Prev 2021; 26:250-257. [PMID: 35047451 PMCID: PMC8749323 DOI: 10.15430/jcp.2021.26.4.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 11/03/2022] Open
Abstract
Mitochondrial fission regulator 2 (MTFR2) is associated with mitochondrial fission, while few studies have assessed the associations between MTFR2 expression and clinical characteristics or prognosis of esophageal squamous cell carcinoma (ESCC). In this study, we compared the expression of MTFR2 in 6 ESCC tumors and relative normal tissues by immunohistochemistry (IHC). To assess the effect of MTFR2 expression on clinicopathologic characteristics and survival, 115 paraffin embedded ESCC tissue samples were assessed by IHC staining. Furthermore, the association between clinicopathological properties and MTFR2 expression in patients with ESCC was examined. The survival analysis was performed using the Cox regression models. We found that MTFR2 expression was significantly increased in ESCC tumors compared with normal esophageal epithelial cells. IHC analysis of 115 paraffin embedded ESCC tumor specimens of the patients showed that the expression of MTFR2 was significantly associated with clinical stage (P < 0.001), tumor classification (P < 0.001), histological grade (P < 0.001), and other clinicopathological characteristics. Both univariate and multivariate analyses showed that MTFR2 expression was inversely correlated with the survival of ESCC patients. In conclusion, the expression of MTFR2 is significantly associated with clinicopathologic characteristics and prognosis of ESCC. Thus, MTFR2 expression could serve as a potentially important prognostic biomarker and clinical target for patients with ESCC.
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Affiliation(s)
- Hongwei Li
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
| | - Xingzhuang Zhu
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China.,Department of Oncology, School of Medicine, Qingdao University, Qingdao, China
| | - Wei Zhang
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
| | - Wenjie Lu
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China.,Department of Oncology, School of Medicine, Qingdao University, Qingdao, China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jinbo Ma
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
| | - Rukun Zang
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
| | - Yipeng Song
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China.,Department of Oncology, School of Medicine, Qingdao University, Qingdao, China
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Lu W, Zang R, Du Y, Li X, Li H, Liu C, Song Y, Li Y, Wang Y. Overexpression of MTFR2 Predicts Poor Prognosis of Breast Cancer. Cancer Manag Res 2020; 12:11095-11102. [PMID: 33173342 PMCID: PMC7646465 DOI: 10.2147/cmar.s272088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/01/2020] [Indexed: 01/06/2023] Open
Abstract
Background Mitochondrial fission regulator 2 (MTFR2) has been reported to promote proliferation, migration and invasion in tumors; however, little is known about its function in breast cancer. Thus, we investigated the effect of MTFR2 expression on prognosis of breast cancer. Methods The expression of MTFR2 in breast cancer tissues was detected by immunohistochemistry, and overall survival (OS) and recurrence free survival (RFS) were evaluated by the Log rank test and Cox model. Results We found that MTFR2 expression was significantly associated with clinical stage (P<0.001), T classification (P=0.005), N classification (P=0.001), M classification (P=0.041), HER2 expression (P= 0.001), and molecular subtypes (P=0.002), respectively. Compared with low MTFR2 expression, the patients with higher expression of MTFR2 exhibited significantly shorter OS and RFS (All P < 0.001). Both univariate and multivariate analyses showed that MTFR2 was an independent prognostic factor for OS (HR, 2.8, 95% CI 1.1-6.8, P = 0.023) and RFS (HR, 2.8, 95% CI 1.2-6.4, P = 0.015) in breast cancer patients. Moreover, in HER2 positive and TNBC subtype, the associations between high MTFR2 expression and poor OS and RFS were more pronounced. Conclusion Taken together, our results demonstrated that high MTFR2 expression was associated with poor prognosis of breast cancer patients, and such an association was more pronounced in the patients with aggressive tumors. Therefore, MTFR2 expression might be a potentially important prognostic biomarker and clinical target for patients with breast cancer.
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Affiliation(s)
- Wenjie Lu
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Rukun Zang
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Yuanna Du
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Xinghua Li
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Hongwei Li
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yipeng Song
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
| | - Yuncheng Li
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yang Wang
- Department of Radiation Oncology, Yantai Yuhuangding Hospital, Affiliated Hospital of Qingdao University, Yantai, Shandong, People's Republic of China
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Chen P, Zhong J, Ye J, He Y, Liang Z, Cheng Y, Zheng J, Chen H, Chen C. miR-324-5p protects against oxidative stress-induced endothelial progenitor cell injury by targeting Mtfr1. J Cell Physiol 2019; 234:22082-22092. [PMID: 31066044 DOI: 10.1002/jcp.28771] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/30/2019] [Accepted: 04/11/2019] [Indexed: 12/22/2022]
Abstract
Endothelial progenitor cells (EPCs) belong to bone marrow-derived myeloid progenitor cells that have strong proliferative ability. Dysregulation of miRNAs after acute myocardial infarction (AMI) can result in EPCs injury, thus we hypothesize that correction of miRNA expression may contribute to the tolerance of EPCs against oxidative stress. The peripheral blood of healthy volunteers and patients with ST-segment elevation myocardial infarction (STEMI) was clinically collected. EPCs derived from peripheral blood were transfected by miR-324-5p mimic and simultaneously handled with hydrogen peroxide (H2 O2 ) to inducing EPCs injury. At 24 hrs after the H2 O2 treatment, cell viability, the uptake capacity on DiI-Ac-LDL, and carrying ability on FITC-UEA-l and multiplication capacity were analyzed. The mechanism process was carefully researched by valued the characteristics of the mitochondrion morphology, membrane potential, ATP levels, and the expressing of apoptosis pathways. Small RNA sequencing indicated that the expression level of miR-324-5p in peripheral blood EPCs of patients with STEMI was significantly lower compared with the healthy volunteers. The Mtfr1 has been confirmed as a targeted gene of miR-324-5p through miRTarBase software and western blot. The miR-324-5p mimic units could be contributed for the improvement of viability, the uptake capacity on DiI-Ac-LDL and carrying ability on FITC-UEA-l and multiplication capacity on oxidative stress-injured EPCs. miR-324-5p could suppress mitochondrial fragmentation, promote membrane potential, and ATP levels, as well as protect against oxidative stress-induced EPCs apoptosis. Our results suggested that miR-324-5p protects against oxidative stress-induced EPCs injury by regulating Mtfr1.
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Affiliation(s)
- Peier Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jianfeng Zhong
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jianfeng Ye
- People's Hospital of Dongguan City, Dongguan, Guangdong, China
| | - Yuan He
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zheng Liang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yu Cheng
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jie Zheng
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Hao Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Can Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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Wang K, Zhang DL, Long B, An T, Zhang J, Zhou LY, Liu CY, Li PF. NFAT4-dependent miR-324-5p regulates mitochondrial morphology and cardiomyocyte cell death by targeting Mtfr1. Cell Death Dis 2015; 6:e2007. [PMID: 26633713 PMCID: PMC4720883 DOI: 10.1038/cddis.2015.348] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 10/10/2015] [Accepted: 11/02/2015] [Indexed: 12/19/2022]
Abstract
Emerging evidence suggest that the abnormal mitochondrial fission participates in pathogenesis of cardiac diseases, including myocardial infarction and heart failure. However, the molecular components regulating mitochondrial network in heart remain largely unidentified. Here we report that NFAT4, miR-324-5p and mitochondrial fission regulator 1 (Mtfr1) function in one signaling axis that regulates mitochondrial morphology and cardiomyocyte cell death. Knocking down Mtfr1 suppresses mitochondrial fission, apoptosis and myocardial infarction. Mtfr1 is a direct target of miR-324-5p, and miR-324-5p attenuates mitochondrial fission, cardiomyocyte apoptosis and myocardial infarction by suppressing Mtfr1 translation. Finally, we show that transcription factor NFAT4 inhibits miR-324-5p expression. Knockdown of NFAT4 suppresses mitochondrial fission and protects cardiomyocyte from apoptosis and myocardial infarction. Our study defines the NFAT4/ miR-324-5p/Mtfr1 axis, which participates in the regulation of mitochondrial fission and cardiomyocyte apoptosis, and suggests potential new treatment avenues for cardiac diseases.
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Affiliation(s)
- K Wang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
| | - D-L Zhang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - B Long
- Laboratory of Molecular Medicine, Central Research Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T An
- State Key Laboratory of Cardiovascular Disease, Heart Failure Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - J Zhang
- State Key Laboratory of Cardiovascular Disease, Heart Failure Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - L-Y Zhou
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
| | - C-Y Liu
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
| | - P-F Li
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
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Harrill AH, Desmet KD, Wolf KK, Bridges AS, Eaddy JS, Kurtz CL, Hall JE, Paine MF, Tidwell RR, Watkins PB. A mouse diversity panel approach reveals the potential for clinical kidney injury due to DB289 not predicted by classical rodent models. Toxicol Sci 2012; 130:416-26. [PMID: 22940726 PMCID: PMC3498743 DOI: 10.1093/toxsci/kfs238] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
DB289 is the first oral drug shown in clinical trials to have efficacy in treating African trypanosomiasis (African sleeping sickness). Mild liver toxicity was noted but was not treatment limiting. However, development of DB289 was terminated when several treated subjects developed severe kidney injury, a liability not predicted from preclinical testing. We tested the hypothesis that the kidney safety liability of DB289 would be detected in a mouse diversity panel (MDP) comprised of 34 genetically diverse inbred mouse strains. MDP mice received 10 days of oral treatment with DB289 or vehicle and classical renal biomarkers blood urea nitrogen (BUN) and serum creatinine (sCr), as well as urine biomarkers of kidney injury were measured. While BUN and sCr remained within reference ranges, marked elevations were observed for kidney injury molecule-1 (KIM-1) in the urine of sensitive mouse strains. KIM-1 elevations were not always coincident with elevations in alanine aminotransferase (ALT), suggesting that renal injury was not linked to hepatic injury. Genome-wide association analyses of KIM-1 elevations indicated that genes participating in cholesterol and lipid biosynthesis and transport, oxidative stress, and cytokine release may play a role in DB289 renal injury. Taken together, the data resulting from this study highlight the utility of using an MDP to predict clinically relevant toxicities, to identify relevant toxicity biomarkers that may translate into the clinic, and to identify potential mechanisms underlying toxicities. In addition, the sensitive mouse strains identified in this study may be useful in screening next-in-class compounds for renal injury.
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Affiliation(s)
- Alison H Harrill
- The Hamner Institutes for Health Sciences, Hamner-University of North Carolina Institute for Drug Safety Sciences, Durham, North Carolina 27709, USA.
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De Jager PL, Shulman JM, Chibnik LB, Keenan BT, Raj T, Wilson RS, Yu L, Leurgans SE, Tran D, Aubin C, Anderson CD, Biffi A, Corneveaux JJ, Huentelman MJ, Rosand J, Daly MJ, Myers AJ, Reiman EM, Bennett DA, Evans DA. A genome-wide scan for common variants affecting the rate of age-related cognitive decline. Neurobiol Aging 2011; 33:1017.e1-15. [PMID: 22054870 DOI: 10.1016/j.neurobiolaging.2011.09.033] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 08/09/2011] [Accepted: 09/16/2011] [Indexed: 11/24/2022]
Abstract
Age-related cognitive decline is likely promoted by accumulated brain injury due to chronic conditions of aging, including neurodegenerative and vascular disease. Because common neuronal mechanisms may mediate the adaptation to diverse cerebral insults, we hypothesized that susceptibility for age-related cognitive decline may be due in part to a shared genetic network. We have therefore performed a genome-wide association study using a quantitative measure of global cognitive decline slope, based on repeated measures of 17 cognitive tests in 749 subjects from the Religious Orders Study. Top results were evaluated in 3 independent replication cohorts, consisting of 2279 additional subjects with repeated cognitive testing. As expected, we find that the Alzheimer's disease (AD) susceptibility locus, APOE, is strongly associated with rate of cognitive decline (P(DISC) = 5.6 × 10(-9); P(JOINT)= 3.7 × 10(-27)). We additionally discover a variant, rs10808746, which shows consistent effects in the replication cohorts and modestly improved evidence of association in the joint analysis (P(DISC) = 6.7 × 10(-5); P(REP) = 9.4 × 10(-3); P(JOINT) = 2.3 × 10(-5)). This variant influences the expression of 2 adjacent genes, PDE7A and MTFR1, which are potential regulators of inflammation and oxidative injury, respectively. Using aggregate measures of genetic risk, we find that known susceptibility loci for cardiovascular disease, type 2 diabetes, and inflammatory diseases are not significantly associated with cognitive decline in our cohort. Our results suggest that intermediate phenotypes, when coupled with larger sample sizes, may be a useful tool to dissect susceptibility loci for age-related cognitive decline and uncover shared molecular pathways with a role in neuronal injury.
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Affiliation(s)
- Philip L De Jager
- Institute for the Neurosciences, Department of Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Monticone M, Panfoli I, Ravera S, Puglisi R, Jiang MM, Morello R, Candiani S, Tonachini L, Biticchi R, Fabiano A, Cancedda R, Boitani C, Castagnola P. The nuclear genes Mtfr1 and Dufd1 regulate mitochondrial dynamic and cellular respiration. J Cell Physiol 2010; 225:767-76. [PMID: 20568109 DOI: 10.1002/jcp.22279] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dufd1 (DUF729 domain containing 1) is related to Mtfr1 (mitochondrial fission regulator 1), a gene involved in the regulation of antioxidant activity in the mouse testis. The present study was undertaken to better understand their role in regulating mitochondrial architecture and function in the mouse. We show that Dufd1 is expressed as a 2 kb mRNA and has a more specific tissue pattern compared to Mtfr1, with highest level of expression in testes, lower level in spleen, and negligible levels in other organs and/or tissues. In the male gonad, Dufd1 mRNA expression increases during postnatal development, similarly to Mtfr1. In situ hybridization and real-time PCR analyses show that Dufd1 is expressed in the seminiferous tubules by middle-late pachytene spermatocytes and spermatids. In transfected cells, the Dufd1-tagged protein is located in mitochondria, associated with the tips of mitochondrial tubules and to tubules constrictions, and induces mitochondrial fission although with a lesser efficiency than Mtfr1. We also found that both endogenous Dufd1 and Mtfr1 proteins are associated with membrane-enriched subcellular fractions, including mitochondria. Inhibition of Mtfr1 and/or Dufd1 expression, in a testicular germ cells line, severely impairs O(2) consumption and indicates that both genes are required for mitochondrial respiration. Accordingly, analysis of testes mitochondria from Mtfr1-deficient mice reveals severely reduced O(2) consumption and ATP synthesis compared to wt animals. These data show that, in murine testis, Dufd1 and Mtfr1 have redundant functions related to mitochondrial physiology and represent genes with a potential role in testicular function.
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Adams HA, Southey BR, Everts RE, Marjani SL, Tian CX, Lewin HA, Rodriguez-Zas SL. Transferase activity function and system development process are critical in cattle embryo development. Funct Integr Genomics 2010; 11:139-50. [PMID: 20844914 DOI: 10.1007/s10142-010-0189-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 08/19/2010] [Accepted: 08/24/2010] [Indexed: 01/04/2023]
Abstract
Microarray gene expression experiments often consider specific developmental stages, tissue sources, or reproductive technologies. This focus hinders the understanding of the cattle embryo transcriptome. To address this, four microarray experiments encompassing three developmental stages (7, 25, 280 days), two tissue sources (embryonic or extra-embryonic), and two reproductive technologies (artificial insemination or AI and somatic cell nuclear transfer or NT) were combined using two sets of meta-analyses. The first set of meta-analyses uncovered 434 genes differentially expressed between AI and NT (regardless of stage or source) that were not detected by the individual-experiment analyses. The molecular function of transferase activity was enriched among these genes that included ECE2, SLC22A1, and a gene similar to CAMK2D. Gene POLG2 was over-expressed in AI versus NT 7-day embryos and was under-expressed in AI versus NT 25-day embryos. Gene HAND2 was over-expressed in AI versus NT extra-embryonic samples at 280 days yet under-expressed in AI versus NT embryonic samples at 7 days. The second set of meta-analyses uncovered enrichment of system, organ, and anatomical structure development among the genes differentially expressed between 7- and 25-day embryos from either reproductive technology. Genes PRDX1and SLC16A1 were over-expressed in 7- versus 25-day AI embryos and under-expressed in 7- versus 25-day NT embryos. Changes in stage were associated with high number of differentially expressed genes, followed by technology and source. Genes with transferase activity may hold a clue to the differences in efficiency between reproductive technologies.
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Affiliation(s)
- Heather A Adams
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Grøndahl ML, Yding Andersen C, Bogstad J, Nielsen FC, Meinertz H, Borup R. Gene expression profiles of single human mature oocytes in relation to age. Hum Reprod 2010; 25:957-68. [PMID: 20147335 DOI: 10.1093/humrep/deq014] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The development competence of human oocytes declines with increasing age. The objective of this study was to investigate the effect of age on gene expression profile in mature human oocytes. METHODS mRNA was isolated for whole genome gene expression microarray analysis from metaphase II (MII) oocytes donated by IVF or ICSI patients [10 women aged <36 years (younger) and five women aged 37-39 years (both inclusive) (older)] undergoing controlled ovarian stimulation. The oocytes were donated and prepared immediately after recovery from the follicle. RT-PCR on additional four younger and two older oocytes confirmed the array analysis. RESULTS On the basis of 15 independent replicates of single MII oocytes, 7470 genes (10 428 transcripts) were identified as present in the MII oocytes. Of these, 342 genes showed a significantly different expression level between the two age groups; notably, genes annotated to be involved in cell cycle regulation, chromosome alignment (e.g. MAD2L1 binding protein), sister chromatid separation (e.g. separase), oxidative stress and ubiquitination. The top signaling network affected by age was 'cell cycle and organism development' (e.g. SMAD2 and activin B1 receptor). CONCLUSION There is a substantial difference between younger and older oocytes in the transcriptional level of genes involved in central biological functions of the oocytes, thus providing information on processes that may be associated with the ageing phenomenon and possibly contributing to decreased fertility.
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Affiliation(s)
- M L Grøndahl
- University Hospital Copenhagen, Rigshospitalet, Fertility Clinic, Copenhagen, Denmark.
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Gu J, Orr N, Park SD, Katz LM, Sulimova G, MacHugh DE, Hill EW. A genome scan for positive selection in thoroughbred horses. PLoS One 2009; 4:e5767. [PMID: 19503617 PMCID: PMC2685479 DOI: 10.1371/journal.pone.0005767] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Accepted: 01/22/2009] [Indexed: 01/10/2023] Open
Abstract
Thoroughbred horses have been selected for exceptional racing performance resulting in system-wide structural and functional adaptations contributing to elite athletic phenotypes. Because selection has been recent and intense in a closed population that stems from a small number of founder animals Thoroughbreds represent a unique population within which to identify genomic contributions to exercise-related traits. Employing a population genetics-based hitchhiking mapping approach we performed a genome scan using 394 autosomal and X chromosome microsatellite loci and identified positively selected loci in the extreme tail-ends of the empirical distributions for (1) deviations from expected heterozygosity (Ewens-Watterson test) in Thoroughbred (n = 112) and (2) global differentiation among four geographically diverse horse populations (F(ST)). We found positively selected genomic regions in Thoroughbred enriched for phosphoinositide-mediated signalling (3.2-fold enrichment; P<0.01), insulin receptor signalling (5.0-fold enrichment; P<0.01) and lipid transport (2.2-fold enrichment; P<0.05) genes. We found a significant overrepresentation of sarcoglycan complex (11.1-fold enrichment; P<0.05) and focal adhesion pathway (1.9-fold enrichment; P<0.01) genes highlighting the role for muscle strength and integrity in the Thoroughbred athletic phenotype. We report for the first time candidate athletic-performance genes within regions targeted by selection in Thoroughbred horses that are principally responsible for fatty acid oxidation, increased insulin sensitivity and muscle strength: ACSS1 (acyl-CoA synthetase short-chain family member 1), ACTA1 (actin, alpha 1, skeletal muscle), ACTN2 (actinin, alpha 2), ADHFE1 (alcohol dehydrogenase, iron containing, 1), MTFR1 (mitochondrial fission regulator 1), PDK4 (pyruvate dehydrogenase kinase, isozyme 4) and TNC (tenascin C). Understanding the genetic basis for exercise adaptation will be crucial for the identification of genes within the complex molecular networks underlying obesity and its consequential pathologies, such as type 2 diabetes. Therefore, we propose Thoroughbred as a novel in vivo large animal model for understanding molecular protection against metabolic disease.
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Affiliation(s)
- Jingjing Gu
- Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Nick Orr
- Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
- The Breakthrough Breast Cancer Research Centre, Chester Beatty Laboratories, The Institute of Cancer Research, London, United Kingdom
| | - Stephen D. Park
- Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Lisa M. Katz
- University Veterinary Hospital, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Galina Sulimova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - David E. MacHugh
- Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Emmeline W. Hill
- Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland
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Kiss HJM, Mihalik Á, Nánási T, Őry B, Spiró Z, Sőti C, Csermely P. Ageing as a price of cooperation and complexity. Bioessays 2009; 31:651-64. [DOI: 10.1002/bies.200800224] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Ramalho-Santos J, Varum S, Amaral S, Mota PC, Sousa AP, Amaral A. Mitochondrial functionality in reproduction: from gonads and gametes to embryos and embryonic stem cells. Hum Reprod Update 2009; 15:553-72. [DOI: 10.1093/humupd/dmp016] [Citation(s) in RCA: 308] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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