1
|
Cao B, Chen X, Li Y, Zhou T, Chen N, Guo Y, Zhao M, Guo C, Shi Y, Wang Q, Du X, Zhang L, Li Y. PDCD4 triggers α-synuclein accumulation and motor deficits via co-suppressing TFE3 and TFEB translation in a model of Parkinson's disease. NPJ Parkinsons Dis 2024; 10:146. [PMID: 39107320 PMCID: PMC11303393 DOI: 10.1038/s41531-024-00760-9] [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: 01/24/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024] Open
Abstract
TFE3 and TFEB, as the master regulators of lysosome biogenesis and autophagy, are well characterized to enhance the synaptic protein α-synuclein degradation in protecting against Parkinson's disease (PD) and their levels are significantly decreased in the brain of PD patients. However, how TFE3 and TFEB are regulated during PD pathogenesis remains largely vague. Herein, we identified that programmed cell death 4 (PDCD4) promoted pathologic α-synuclein accumulation to facilitate PD development via suppressing both TFE3 and TFEB translation. Conversely, PDCD4 deficiency significantly augmented global and nuclear TFE3 and TFEB distributions to alleviate neurodegeneration in a mouse model of PD with overexpressing α-synuclein in the striatum. Mechanistically, like TFEB as we reported before, PDCD4 also suppressed TFE3 translation, rather than influencing its transcription and protein stability, to restrain its nuclear translocation and lysosomal functions, eventually leading to α-synuclein aggregation. We proved that the two MA3 domains of PDCD4 mediated the translational suppression of TFE3 through binding to its 5'-UTR of mRNA in an eIF-4A dependent manner. Based on this, we developed a blood-brain barrier penetrating RVG polypeptide modified small RNA drug against pdcd4 to efficiently prevent α-synuclein neurodegeneration in improving PD symptoms by intraperitoneal injections. Together, we suggest PDCD4 as a PD-risk protein to facilitate α-synuclein neurodegeneration via suppressing TFE3 and TFEB translation and further provide a potential small RNA drug against pdcd4 to treat PD by intraperitoneal injections.
Collapse
Affiliation(s)
- Baihui Cao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaotong Chen
- Department of Immunology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Yubin Li
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tian Zhou
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nuo Chen
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yaxin Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming Zhao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chun Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yongyu Shi
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qun Wang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xuexiang Du
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
| |
Collapse
|
2
|
Cao G, Kang T, Li N, Li P. Programmed cell death 4 blocks autophagy and promotes dopaminergic neuronal injury in Parkinson's disease. Exp Ther Med 2024; 27:135. [PMID: 38476886 PMCID: PMC10928848 DOI: 10.3892/etm.2024.12423] [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: 08/31/2023] [Accepted: 11/17/2023] [Indexed: 03/14/2024] Open
Abstract
Dysregulation of autophagy has previously been associated with the formation of toxic proteins, such as α-synuclein, in patients with Parkinson's disease (PD). In addition, it has been indicated that programmed cell death 4 (PDCD4) can inhibit autophagy in certain conditions, such as diabetic nephropathy, atherosclerosis and cardiac hypertrophy. Therefore, the hypothesis that PDCD4 can promote dopaminergic neuron damage through autophagy was proposed. To explore this hypothesis, the present study treated human neuroblastoma SK-N-SH cells with 1-methyl-4-phenylpyridinium (MPP+) to establish an in vitro model of PD. The potential effects of PDCD4 knockdown on lactate dehydrogenase (LDH) release, cell apoptosis, inflammatory response, oxidative stress and autophagy were then evaluated in this model of PD using an LDH assay kit, flow cytometry, western blotting, ELISA and immunofluorescence. The autophagy inhibitor 3-methyladenine (3-MA) was also applied to treat these cells, and its effects on these aforementioned parameters following PDCD4 knockdown were assessed. MPP+ was shown to increase the expression levels of PDCD4 in SK-N-SH cells. PDCD4 knockdown was revealed to suppress LDH release, cell apoptosis, secretion of inflammatory factors and oxidative stress. In addition, PDCD4 knockdown was demonstrated to enhance autophagy in cells treated with MPP+. By contrast, 3-MA treatment reversed the aforementioned effects of PDCD4 knockdown on cells, suggesting autophagy to be among the processes regulated by PDCD4 in SK-N-SH cells. The results of the present study suggested the existence of regulatory effects mediated by PDCD4 on autophagy in MPP+-induced SK-N-SH cells, offering potential future targets for PD therapy.
Collapse
Affiliation(s)
- Guiling Cao
- Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Tao Kang
- Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Nini Li
- Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Peng Li
- Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| |
Collapse
|
3
|
Li FXZ, Liu JJ, Xu F, Shan SK, Zheng MH, Lei LM, Lin X, Guo B, Li CC, Wu F, Tang KX, Cao YC, Wu YY, Duan JY, Wu YL, He SY, Chen X, Yuan LQ. Cold exposure protects against medial arterial calcification development via autophagy. J Nanobiotechnology 2023; 21:226. [PMID: 37461031 PMCID: PMC10351118 DOI: 10.1186/s12951-023-01985-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/06/2023] [Indexed: 07/20/2023] Open
Abstract
Medial arterial calcification (MAC), a systemic vascular disease different from atherosclerosis, is associated with an increased incidence of cardiovascular events. Several studies have demonstrated that ambient temperature is one of the most important factors affecting cardiovascular events. However, there has been limited research on the effect of different ambient temperatures on MAC. In the present study, we showed that cold temperature exposure (CT) in mice slowed down the formation of vitamin D (VD)-induced vascular calcification compared with room temperature exposure (RT). To investigate the mechanism involved, we isolated plasma-derived exosomes from mice subjected to CT or RT for 30 days (CT-Exo or RT-Exo, respectively). Compared with RT-Exo, CT-Exo remarkably alleviated the calcification/senescence formation of vascular smooth muscle cells (VSMCs) and promoted autophagy by activating the phosphorylation of AMP-activated protein kinase (p-AMPK) and inhibiting phosphorylation of mammalian target of rapamycin (p-mTOR). At the same time, CT-Exo promoted autophagy in β-glycerophosphate (β-GP)-induced VSMCs. The number of autophagosomes and the expression of autophagy-related proteins ATG5 and LC3B increased, while the expression of p62 decreased. Based on a microRNA chip microarray assay and real-time polymerase chain reaction, miR-320a-3p was highly enriched in CT-Exo as well as thoracic aortic vessels in CT mice. miR-320a-3p downregulation in CT-Exo using AntagomiR-320a-3p inhibited autophagy and blunted its anti-calcification protective effect on VSMCs. Moreover, we identified that programmed cell death 4 (PDCD4) is a target of miR-320a-3p, and silencing PDCD4 increased autophagy and decreased calcification in VSMCs. Treatment with CT-Exo alleviated the formation of MAC in VD-treated mice, while these effects were partially reversed by GW4869. Furthermore, the anti-arterial calcification protective effects of CT-Exo were largely abolished by AntagomiR-320a-3p in VD-induced mice. In summary, we have highlighted that prolonged cold may be a good way to reduce the incidence of MAC. Specifically, miR-320a-3p from CT-Exo could protect against the initiation and progression of MAC via the AMPK/mTOR autophagy pathway.
Collapse
Affiliation(s)
- Fu-Xing-Zi Li
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Jun-Jie Liu
- Department of Periodontal Division, Hunan Xiangya Stomatological Hospital, Central South University, Changsha, China
| | - Feng Xu
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Su-Kang Shan
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Ming-Hui Zheng
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Li-Min Lei
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Xiao Lin
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Bei Guo
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Chang-Chun Li
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Feng Wu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ke-Xin Tang
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Ye-Chi Cao
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Yun-Yun Wu
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Jia-Yue Duan
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Yan-Lin Wu
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Si-Yang He
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Xi Chen
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Ling-Qing Yuan
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
| |
Collapse
|
4
|
Dwivedi S, Pareek P, Vishnoi JR, Sharma P, Misra S. Downregulation of miRNA-21 and cancer stem cells after chemotherapy results in better outcome in breast cancer patients. World J Stem Cells 2022; 14:310-313. [PMID: 35662862 PMCID: PMC9136563 DOI: 10.4252/wjsc.v14.i4.310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/14/2021] [Accepted: 04/04/2022] [Indexed: 02/06/2023] Open
Abstract
Epigenetic modifications have been observed as a decline in miRNA-21 expression and breast cancer stem cell (CSC) population after 3 cycles of standard chemotherapy. The epigenetic response (miRNAs expression) and CSCs are also correlated in patients with Breast Cancer. In patients who tolerated chemotherapy well, miRNA-21 (non-coding RNA) expression decreased significantly after three cycles of chemotherapy. The miRNA-21 expression in breast cancer tissue was quantified by quantitative PCR (real-time PCR) using the standard protocol. In addition, breast CSCs (CD44+/CD24-) were also decreased in these patients. The miRNA-21 regulates cell division, proliferation, and autophagy of cancerous cells (as it targets phosphatase and tensin homolog/AKT/transcription factor EB/programmed cell death 4/autophagy-related protein 5 and chemotherapy also produces similar effects), thereby contributing to these benefits. Therefore, when all of the targets on genes have been explored by mimic miRNA, chemotherapy combined with anti-miRNA21 therapy may prove useful in the care of cancer patients.
Collapse
Affiliation(s)
- Shailendra Dwivedi
- Biochemistry, All India Institute of Medical Sciences Gorakhpur India, Gorakhpur 273008, Uttar Pradesh, India
| | - Puneet Pareek
- Department of Radiation Oncology, All India Institute of Medical Sciences, Jodhpur 342005, Rajasthan, India
| | - Jeewan Ram Vishnoi
- Surgical Oncology, All India Institute of Medical Sciences, Jodhpur 342005, Rajasthan, India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur 342005, Rajasthan, India
| | - Sanjeev Misra
- Department of Surgical Oncology, All India Institute of Medical Sciences, Jodhpur 342005, Rajasthan, India
- King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| |
Collapse
|
5
|
Kansakar U, Varzideh F, Mone P, Jankauskas SS, Santulli G. Functional Role of microRNAs in Regulating Cardiomyocyte Death. Cells 2022; 11:983. [PMID: 35326433 PMCID: PMC8946783 DOI: 10.3390/cells11060983] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 02/08/2023] Open
Abstract
microRNAs (miRNA, miRs) play crucial roles in cardiovascular disease regulating numerous processes, including inflammation, cell proliferation, angiogenesis, and cell death. Herein, we present an updated and comprehensive overview of the functional involvement of miRs in the regulation of cardiomyocyte death, a central event in acute myocardial infarction, ischemia/reperfusion, and heart failure. Specifically, in this systematic review we are focusing on necrosis, apoptosis, and autophagy.
Collapse
Affiliation(s)
- Urna Kansakar
- Department of Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA; (U.K.); (F.V.); (P.M.); (S.S.J.)
| | - Fahimeh Varzideh
- Department of Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA; (U.K.); (F.V.); (P.M.); (S.S.J.)
| | - Pasquale Mone
- Department of Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA; (U.K.); (F.V.); (P.M.); (S.S.J.)
| | - Stanislovas S. Jankauskas
- Department of Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA; (U.K.); (F.V.); (P.M.); (S.S.J.)
- Department of Molecular Pharmacology, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Fleischer Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Gaetano Santulli
- Department of Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA; (U.K.); (F.V.); (P.M.); (S.S.J.)
- Department of Molecular Pharmacology, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Fleischer Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, New York, NY 10461, USA
| |
Collapse
|
6
|
Liu D, Ke J, Liu Y, Rao H, Tang Z, Liu Y, Zhang Z, You L, Luo X, Sun Z, He Z, Li F, Qiu Z, Hu J, Mbadhi MN, Tang J, Wu F, Li S. The interaction between PDCD4 and YB1 is critical for cervical cancer stemness and cisplatin resistance. Mol Carcinog 2021; 60:813-825. [PMID: 34499772 DOI: 10.1002/mc.23345] [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: 04/19/2021] [Revised: 07/17/2021] [Accepted: 08/22/2021] [Indexed: 12/27/2022]
Abstract
Cancer multidrug resistance (MDR) is existence in stem cell-like cancer cells characterized by stemness including high-proliferation and self-renewal. Programmed cell death 4 (PDCD4), as a proapoptotic gene, whether it engaged in cancer stemness and cisplatin resistance is still unknown. Here we showed that PDCD4 expressions in Hela/DDP (cisplatin resistance) cells were lower than in parental Hela cells. Moreover, the levels of drug resistance genes and typical stemness markers were markedly elevated in Hela/DDP cells. In vivo, xenograft tumor assay confirmed that knockdown of PDCD4 accelerated the grafted tumor growth. In vitro, colony formation and MTT assay demonstrated that PDCD4 overexpression inhibited cells proliferation in conditions with or without cisplatin. By contrast, PDCD4 deficiency provoked cell proliferation and cisplatin resistance. On mechanism, PDCD4 decreased the protein levels of pAKT and pYB1, accompanied by reduced MDR1 expression. Correspondingly, luciferase reporter assay showed PDCD4 regulated MDR1 promoter activity entirely relied on YB1. Furthermore, Ch-IP, GST-pulldown, and Co-IP assays provided novel evidence that PDCD4 could directly bind with YB1 by the nucleolar localization signal (NOLS) segment, causing the reduced YB1 binding into the MDR1 promoter region through blocking YB1 nucleus translocation, triggering the decreased MDR1 transcription. Taken together, PDCD4-pAKT-pYB1 forms the integrated molecular network to regulate MDR1 transcription during the process of stemness-associated cisplatin resistance.
Collapse
Affiliation(s)
- Dan Liu
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China.,Department of Clinical Laboratory, Central hospital of Xiaogan, Xiaogan, P. R. China
| | - Jing Ke
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Yang Liu
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Huiling Rao
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Zhiming Tang
- Department of Integrated Medicine, Dongfeng Hospital of Guoyao, Hubei University of Medicine, Shiyan, P. R. China
| | - Ying Liu
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Zhaoyang Zhang
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Lei You
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, P. R. China
| | - Xiangyin Luo
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Zequn Sun
- Department of Digestive Disease, Renmin Hospital, Hubei University of Medicine, Shiyan, P. R. China
| | - Zhijun He
- Department of Digestive Disease, Renmin Hospital, Hubei University of Medicine, Shiyan, P. R. China
| | - Fei Li
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Zhengpeng Qiu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, P. R. China
| | - Junjie Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, P. R. China
| | | | - Junming Tang
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, P. R. China
| | - Fuyun Wu
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China
| | - Shan Li
- Institute of Basic Medical Science, Hubei University of Medicine, Shiyan, P. R. China.,Department of Integrated Medicine, Dongfeng Hospital of Guoyao, Hubei University of Medicine, Shiyan, P. R. China.,Department of Digestive Disease, Renmin Hospital, Hubei University of Medicine, Shiyan, P. R. China
| |
Collapse
|
7
|
Osoro EK, Du X, Liang D, Lan X, Farooq R, Huang F, Zhu W, Ren J, Sadiq M, Tian L, Yang X, Li D, Lu S. Induction of PDCD4 by albumin in proximal tubule epithelial cells potentiates proteinuria-induced dysfunctional autophagy by negatively targeting Atg5. Biochem Cell Biol 2021; 99:617-628. [PMID: 33831322 DOI: 10.1139/bcb-2021-0028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The precise molecular mechanism of autophagy dysfunction in type 1 diabetes is not known. Herein, the role of programmed cell death 4 (PDCD4) in autophagy regulation in the pathogenesis of diabetic kidney disease (DKD) in vivo and in vitro was described. It was found that Pdcd4 mRNA and protein was upregulated in the streptozotocin (STZ)-induced DKD rats. In addition, a unilateral ureteral obstruction mouse model displayed an upregulation of PDCD4 in the disease group. kidney biopsy samples of human DKD patients showed an upregulation of PDCD4. Furthermore, western blotting of the STZ-induced DKD rat tissues displayed a low microtubule-associated protein 1A/1B-light chain 3 (LC3)-II, as compared to the control. It was found that albumin overload in cultured PTEC could upregulate the expression of PDCD4 and p62, and decrease the expression of LC3-II and autophagy-related 5 (Atg5) proteins. The knockout of Pdcd4 in cultured PTECs could lessen albumin-induced dysfunctional autophagy as evidenced by the recovery of Atg5 and LC3-II protein. The forced expression of PDCD4 could further suppress the expression of crucial autophagy-related gene Atg5. Herein, endogenous PDCD4 was shown to promote proteinuria-induced dysfunctional autophagy by negatively regulating Atg5. PDCD4 might therefore be a potential therapeutic target in DKD.
Collapse
Affiliation(s)
- Ezra Kombo Osoro
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Xiaojuan Du
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, Shaanxi, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Dong Liang
- Xi'an Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, Shaanxi, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Xi Lan
- Xi'an Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, Shaanxi, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Riaz Farooq
- Xi'an Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, Shaanxi, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Fumeng Huang
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Wenhua Zhu
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Jiajun Ren
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Muhammad Sadiq
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Lifang Tian
- Xi'an Jiaotong University, 12480, Department of Nephrology, the Second Affiliated Hospital, Xi'an, Shaanxi, China;
| | - Xudong Yang
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Dongmin Li
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| | - Shemin Lu
- Xian Jiaotong University, 12480, Biochemistry and Molecular Biology, Xi'an, Shaanxi, China.,Xi'an Jiaotong University, 12480, Key Laboratory of Environment and Genes Related to Diseases, Xi'an, Shaanxi, China;
| |
Collapse
|
8
|
Liu L, Feng Y, Hu S, Li H, Li Y, Ke J, Long X. PDCD4 suppresses autophagy and promotes apoptosis via Akt in chondrocytes of temporomandibular joint osteoarthritis. Oral Dis 2021. [DOI: 10.1111/odi.13559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Li Liu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Yaping Feng
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Shiyu Hu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Huimin Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Yanyan Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Jin Ke
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Xing Long
- Department of Oral and Maxillofacial Surgery School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| |
Collapse
|
9
|
Lipophagy in atherosclerosis. Clin Chim Acta 2020; 511:208-214. [DOI: 10.1016/j.cca.2020.10.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/09/2020] [Accepted: 10/15/2020] [Indexed: 12/12/2022]
|
10
|
Jogalekar MP, Veerabathini A, Gangadaran P. Recent developments in autophagy-targeted therapies in cancer. Exp Biol Med (Maywood) 2020; 246:207-212. [PMID: 33167689 DOI: 10.1177/1535370220966545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Autophagy plays a crucial role in cellular development and differentiation as well as in the maintenance of homeostasis in healthy cells. Autophagy is well documented in neurodegenerative disorders, aging, and infectious diseases. However, recognizing its significance in cancer has always been challenging due to its tumor-promoting and suppressive attributes. Various modulators targeting key components of autophagy machinery directly or indirectly have been developed over the years, and have shown promising results in preclinical models. Some of these compounds are even being tested in clinical trials for safety and efficacy. A detailed review of strategies used to target autophagy in cancer is presented including our opinion on developing better therapies and outstanding issues.
Collapse
Affiliation(s)
- Manasi P Jogalekar
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| |
Collapse
|
11
|
Lu K, Chen Q, Li M, He L, Riaz F, Zhang T, Li D. Programmed cell death factor 4 (PDCD4), a novel therapy target for metabolic diseases besides cancer. Free Radic Biol Med 2020; 159:150-163. [PMID: 32745771 DOI: 10.1016/j.freeradbiomed.2020.06.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 02/06/2023]
Abstract
Programmed cell death factor 4 (PDCD4) is originally described as a tumor suppressor gene that exerts antineoplastic effects by promoting apoptosis and inhibiting tumor cell proliferation, invasion, and metastasis. Several investigations have probed the aberrant expression of PDCD4 with the progression of metabolic diseases, such as polycystic ovary syndrome (PCOS), obesity, diabetes, and atherosclerosis. It has been ascertained that PDCD4 causes glucose and lipid metabolism disorders, insulin resistance, oxidative stress, chronic inflammatory response, and gut flora disorders to regulate the progression of metabolic diseases. This review aims to summarize the latest researches to uncover the structure, expression regulation, and biological functions of PDCD4 and to elucidate the regulatory mechanism of the development of tumors and metabolic diseases. This review has emphasized the understanding of the PDCD4 role and to provide new ideas for the research, diagnosis, and treatment of tumors and metabolic diseases.
Collapse
Affiliation(s)
- Kaikai Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Qian Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Mengda Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Lei He
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Farooq Riaz
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Tianyun Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China
| | - Dongmin Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, 710061, PR China.
| |
Collapse
|
12
|
Fan D, Zeng C, Wang S, Han J, Zhu L, Zhao H, Zhang Y, Lu J, Xu Y. Forkhead box P3 promotes breast cancer cell apoptosis by regulating programmed cell death 4 expression. Oncol Lett 2020; 20:292. [PMID: 33101486 PMCID: PMC7576988 DOI: 10.3892/ol.2020.12155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 08/18/2020] [Indexed: 12/24/2022] Open
Abstract
Forkhead box P3 (FOXP3), an X-linked tumor suppressor gene, plays an important role in breast cancer. However, the biological functions of FOXP3 in breast cancer apoptosis remain unclear. To investigate the underlying genes and networks regulated by FOXP3 in breast cancer, RNA sequencing was performed to compare FOXP3-overexpressing MDA-MB-231 cells and control MDA-MB-231 cells. Differentially expressed genes were identified, and functional enrichment analysis comparing the two groups was performed. The differentially expressed genes were mainly enriched in phagosomes, oxytocin, serotonergic synapses and the phospholipase D signaling pathway. Furthermore, gene set enrichment analysis revealed the enrichment of a gene signature associated with apoptosis in FOXP3-overexpressing MDA-MB-231 cells compared with wild-type cells. Further analysis showed that programmed cell death 4 (PDCD4), a key molecule involved in apoptosis, was overexpressed in FOXP3-MDA-MB-231 cells. Reverse transcription-quantitative PCR and western blotting showed that FOXP3 upregulated the expression of PDCD4 in breast cancer cells. Clinical sample analysis using a public database showed that the expression level of PDCD4 was associated with breast cancer clinical stages. Overall, the present study suggested that FOXP3 can promote the apoptosis of breast cancer cells by upregulating the expression of PDCD4, thus exerting a tumor suppressive function.
Collapse
Affiliation(s)
- Dong Fan
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China.,Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Cheng Zeng
- Department of Chinese Materia Medical and Natural Medicines, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China.,Department of Pharmacy, Central Theater Command Air Force Hospital, Datong, Shaanxi 037000, P.R. China
| | - Shuming Wang
- Outpatient Department of Rocket Engineering University, The 986th Hospital of Air Force, Air Force Medical University, Xi'an, Shaanxi 710054, P.R. China
| | - Jun Han
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Liaoliao Zhu
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Huadong Zhao
- Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yingqi Zhang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jianguo Lu
- Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Ying Xu
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China.,Department of Obstetrics and Gynecology, The First Affiliated Hospital of The Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China
| |
Collapse
|
13
|
Programmed cell death 4 modulates lysosomal function by inhibiting TFEB translation. Cell Death Differ 2020; 28:1237-1250. [PMID: 33100324 DOI: 10.1038/s41418-020-00646-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 12/27/2022] Open
Abstract
Transcription factor EB (TFEB) is a master regulator of autophagy and lysosomal biogenesis. The post-translational phosphorylation modulations of TFEB by mTOR and ERK signaling can determine its nucleocytoplasmic shuttling and activity in response to nutrient availability. However, regulations of TFEB at translational level are rarely known. Here, we found that programmed cell death 4 (PDCD4), a tumor suppressor, decreased levels of nuclear TFEB to inhibit lysosome biogenesis and function. Mechanistically, PDCD4 reduces global pool of TFEB by suppressing TFEB translation in an eIF4A-dependent manner, rather than influencing mTOR- and ERK2-dependnet TFEB nucleocytoplasmic shuttling. Both of MA3 domains within PDCD4 are required for TFEB translation inhibition. Furthermore, TFEB is required for PDCD4-mediated lysosomal function suppression. In the tumor microenvironment, PDCD4 deficiency promotes the anti-tumor effect of macrophage via enhancing TFEB expression. Our research reveals a novel PDCD4-dependent TFEB translational regulation and supports PDCD4 as a potential therapeutic target for lysosome dysfunction related diseases.
Collapse
|
14
|
Zhang J, Zhang M, Yang Z, Huang S, Wu X, Cao L, Wang X, Li Q, Li N, Gao F. PDCD4 deficiency ameliorates left ventricular remodeling and insulin resistance in a rat model of type 2 diabetic cardiomyopathy. BMJ Open Diabetes Res Care 2020; 8:8/1/e001081. [PMID: 32371529 PMCID: PMC7228667 DOI: 10.1136/bmjdrc-2019-001081] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/04/2020] [Accepted: 03/31/2020] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Diabetic cardiomyopathy (DCM) is characterized by cardiac remodeling, dysfunction, and insulin resistance; however, the underlying mechanism has not been fully elucidated. Programmed cell death 4 (PDCD4) is a novel inflammation and apoptosis gene, but its role in type 2 DCM remains elusive. We aimed to determine if PDCD4 intervention improves DCM by affecting left ventricular remodeling, function, and insulin resistance. RESEARCH DESIGN AND METHODS We designed a PDCD4-/- rat, established a type 2 diabetes animal model, and constructed a PDCD4 overexpressed adenovirus and PDCD4 small interfer RNA (siRNA) vectors to alter PDCD4 expression in H9c2 cardiomyocytes. Thereafter, glucose levels, lipid metabolism, echocardiography, and extent of myocardial fibrosis, inflammation, and apoptosis were compared in vivo and in vitro. RESULTS PDCD4 deficiency improved insulin resistance, cardiac remodeling, and dysfunction in type 2 DCM rats and improved myocardial hypertrophy, fibrosis, inflammation, and apoptosis. Proliferation and transformation of cardiac fibroblasts was reduced via PDCD4 downregulation in vitro under high-glucose stimulation. Furthermore, PDCD4 regulated the myocardial phosphatidylinositol 3-kinase-protein kinase B (PI3K-AKT) pathway in vivo and in vitro. PDCD4 intervention affected cardiac remodeling, dysfunction, and insulin resistance by influencing fibrosis, inflammation, and apoptosis via the PI3K-AKT pathway in vivo. CONCLUSIONS PDCD4 knockdown protected against left ventricular remodeling, dysfunction, and insulin resistance in type 2 DCM rats. The underlying mechanisms may involve reducing cardiomyocyte apoptosis, inflammation, fibrosis, and normalized PI3K-AKT phosphorylation. To the best of our knowledge, our study is the first to report the effects and underlying mechanisms of PDCD4 in type 2 DCM. These results provide a potential new treatment avenue for improving the prognosis of patients with type 2 DCM.
Collapse
Affiliation(s)
- Jie Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Meng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Zhi Yang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Shanying Huang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Xiao Wu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Lei Cao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Xiaohong Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Qian Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Na Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Fei Gao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| |
Collapse
|
15
|
Mao QQ, Xu XY, Shang A, Gan RY, Wu DT, Atanasov AG, Li HB. Phytochemicals for the Prevention and Treatment of Gastric Cancer: Effects and Mechanisms. Int J Mol Sci 2020; 21:E570. [PMID: 31963129 PMCID: PMC7014214 DOI: 10.3390/ijms21020570] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 12/13/2022] Open
Abstract
Gastric cancer is the fifth most common cancer, and the third most prevalent cause of cancer-related deaths in the world. Voluminous evidence has demonstrated that phytochemicals play a critical role in the prevention and management of gastric cancer. Most epidemiological investigations indicate that the increased intake of phytochemicals could reduce the risk of gastric cancer. Experimental studies have elucidated the mechanisms of action, including inhibiting cancer cell proliferation, inducing apoptosis and autophagy, and suppressing angiogenesis as well as cancer cell metastasis. These mechanisms have also been related to the inhibition of Helicobacter pylori and the modulation of gut microbiota. In addition, the intake of phytochemicals could enhance the efficacy of anticancer chemotherapeutics. Moreover, clinical studies have illustrated that phytochemicals have the potential for the prevention and the management of gastric cancer in humans. To provide an updated understanding of relationships between phytochemicals and gastric cancer, this review summarizes the effects of phytochemicals on gastric cancer, highlighting the underlying mechanisms. This review could be helpful for guiding the public in preventing gastric cancer through phytochemicals, as well as in developing functional food and drugs for the prevention and treatment of gastric cancer.
Collapse
Affiliation(s)
- Qian-Qian Mao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Q.-Q.M.); (X.-Y.X.); (A.S.)
| | - Xiao-Yu Xu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Q.-Q.M.); (X.-Y.X.); (A.S.)
| | - Ao Shang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Q.-Q.M.); (X.-Y.X.); (A.S.)
| | - Ren-You Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ding-Tao Wu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya’an 625014, China;
| | - Atanas G. Atanasov
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland;
- Institute of Neurobiology, Bulgarian Academy of Sciences, 23 Acad. G. Bonchev str., 1113 Sofia, Bulgaria
- Department of Pharmacognosy, University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Q.-Q.M.); (X.-Y.X.); (A.S.)
| |
Collapse
|
16
|
Li Y, Wang X, Wang X, Wan L, Liu Y, Shi Y, Zhang L, Fang Z, Wei Z. PDCD4 suppresses proliferation, migration, and invasion of endometrial cells by inhibiting autophagy and NF-κB/MMP2/MMP9 signal pathway. Biol Reprod 2019; 99:360-372. [PMID: 29912279 DOI: 10.1093/biolre/ioy052] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 06/14/2018] [Indexed: 11/12/2022] Open
Abstract
Endometriosis (EM) is a kind of estrogen-dependent disease in reproductive-age women. Ovarian EM is the most common type. Although EM is a benign disease, it shares many similar features with cancers. Programmed cell death 4 (PDCD4), a newly identified tumor suppressor, plays an important role in inhibiting tumorigenesis and tumor progression at the transcriptional and translational levels. To explore the roles of PDCD4 in EM, we detected the expression of PDCD4 in control endometrium and eutopic/ectopic endometrium of ovarian EM patients, and analyzed the effects of PDCD4 on the biological behaviors of endometrial cell lines and primary endometrial cells. The results demonstrated that PDCD4 was downregulated in eutopic and ectopic endometrium of EM patients compared with control endometrium. PDCD4 effectively inhibited the proliferation and colony-forming ability of endometrial cells maybe by inhibiting cell autophagy. In addition, PDCD4 also suppressed the migration and invasion ability of endometrial cells, the mechanism may be related to NF-κB/MMP2/MMP9 signal pathway. Taken together, these results suggest that PDCD4 could be involved in the pathogenesis of EM, and provide a novel approach to target the aberrant PDCD4 expression in EM.
Collapse
Affiliation(s)
- Yue Li
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Xiaoyan Wang
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Xishuang Wang
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Lu Wan
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Yanping Liu
- Department of Gynecology and Obstetrics, Jinan Central Hospital affiliated to Shandong University, Jinan, Shandong, P. R. China
| | - Yongyu Shi
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Zhenghui Fang
- Department of Gynecology and Obstetrics, Jinan Central Hospital affiliated to Shandong University, Jinan, Shandong, P. R. China
| | - Zengtao Wei
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China.,Department of Gynecology and Obstetrics, Jinan Central Hospital affiliated to Shandong University, Jinan, Shandong, P. R. China.,Department of Gynecology and Obstetrics, Clinical Medical School, Shandong University, Jinan, Shandong, P. R. China
| |
Collapse
|
17
|
Xie X, Bi HL, Lai S, Zhang YL, Li N, Cao HJ, Han L, Wang HX, Li HH. The immunoproteasome catalytic β5i subunit regulates cardiac hypertrophy by targeting the autophagy protein ATG5 for degradation. SCIENCE ADVANCES 2019; 5:eaau0495. [PMID: 31086810 PMCID: PMC6506244 DOI: 10.1126/sciadv.aau0495] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 03/25/2019] [Indexed: 05/03/2023]
Abstract
Pathological cardiac hypertrophy eventually leads to heart failure without adequate treatment. The immunoproteasome is an inducible form of the proteasome that is intimately involved in inflammatory diseases. Here, we found that the expression and activity of immunoproteasome catalytic subunit β5i were significantly up-regulated in angiotensin II (Ang II)-treated cardiomyocytes and in the hypertrophic hearts. Knockout of β5i in cardiomyocytes and mice markedly attenuated the hypertrophic response, and this effect was aggravated by β5i overexpression in cardiomyocytes and transgenic mice. Mechanistically, β5i interacted with and promoted ATG5 degradation thereby leading to inhibition of autophagy and cardiac hypertrophy. Further, knockdown of ATG5 or inhibition of autophagy reversed the β5i knockout-mediated reduction of cardiomyocyte hypertrophy induced by Ang II or pressure overload. Together, this study identifies a novel role for β5i in the regulation of cardiac hypertrophy. The inhibition of β5i activity may provide a new therapeutic approach for hypertrophic diseases.
Collapse
Affiliation(s)
- Xin Xie
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Hai-Lian Bi
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Song Lai
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Yun-Long Zhang
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Nan Li
- Department of Physiology and Physiopathology, School of Basic Medical Sciences, Capital Medical University, Beijing 100038, China
| | - Hua-Jun Cao
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Ling Han
- Department of Cardiology, Fuxing Hospital of the Capital Medical University, Beijing 100038, China
| | - Hong-Xia Wang
- Department of Physiology and Physiopathology, School of Basic Medical Sciences, Capital Medical University, Beijing 100038, China
- Corresponding author. (H.-H.L.); (H.-X.W.)
| | - Hui-Hua Li
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
- Department of Nutrition and Food Hygiene, School of Public Health, Dalian Medical University, Dalian 116044, China
- Corresponding author. (H.-H.L.); (H.-X.W.)
| |
Collapse
|
18
|
Li S, Gao G, Wu F, Liu D, Zhao H, Ke J, Liu Y, Li F, Li J, Chen Z, Tang Z, Bai L, Zhang J, Zheng W, Chen X. Programmed cell death protein 4 deficiency suppresses foam cell formation by activating autophagy in advanced glycation end-product low-density lipoprotein-induced macrophages. J Cell Biochem 2019; 120:7689-7700. [PMID: 30426537 DOI: 10.1002/jcb.28043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 10/22/2018] [Indexed: 01/24/2023]
Abstract
BACKGROUND Advanced glycation end-product is a modified form of low-density lipoprotein (AGE-LDL) and accelerates atherosclerosis through undefined mechanisms. Programmed cell death protein 4 (PDCD4), a transcriptional regulator, plays an important role in the regulation of autophagy. The aim of the present study was to investigate the role of PDCD4 involved in AGE-LDL-induced foam cell formation. METHODS The characterization of AGE-LDL was measured by the thiobarbituric assay and agarose gel electrophoresis in vitro. RAW264.7, THP-1 cell line and primary peritoneal macrophages of mice were transfected with shPDCD4 plasmid AGE-LDL-induced foam cell formation was stained by Oil Red, and the levels of autophagy and apoptosis were determined by Western blot analysis. Autophagosome was observed with immunofluorescence microscopy. Mitochondrial membrane potential and autophagic flux were assessed by flow cytometry. RESULTS AGE modification resulted in significant reduction of absorbance shown by thiobarbituric assay and augmentation of electrophoresis mobility. Further studies suggest that macrophages exposed AGE-LDL triggered autophagy in the early stage of foam cell formation. PDCD4 deficiency enhanced lipoautophagy but inhibited apoptosis and mitochondria dysfunction. Previous studies have been reported that autophagy is an adaptive response might prevent lesional macrophage apoptosis. In our study, we found PDCD4 deficiency attenuated apoptosis and AGE-LDL-induced foam cell formation relied on increased autophagy. CONCLUSION Our data revealed that PDCD4 deficiency can facilitate autophagy and benefit for AGE-LDL-induced foam cell formation.
Collapse
Affiliation(s)
- Shan Li
- Department of Integrated Medicine, Affiliated Dongfeng Hospital, Hubei University of Medicine, Shiyan, China.,Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Guangdong Gao
- Department of Biological Sciences, School of Biomedical Engineering, Hubei University of Medicine, Shiyan, China
| | - Fuyun Wu
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Dan Liu
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Hongyan Zhao
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Jing Ke
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Ying Liu
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Fei Li
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Jian Li
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Zongyun Chen
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Zhiming Tang
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Lei Bai
- Department of Biological Sciences, School of Biomedical Engineering, Hubei University of Medicine, Shiyan, China
| | - Jinxuan Zhang
- Department of biochemistry, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Wei Zheng
- Department of Integrated Medicine, Affiliated Dongfeng Hospital, Hubei University of Medicine, Shiyan, China
| | - Xin Chen
- Department of Integrated Medicine, Affiliated Dongfeng Hospital, Hubei University of Medicine, Shiyan, China
| |
Collapse
|
19
|
Burmi RS, Maginn EN, Gabra H, Stronach EA, Wasan HS. Combined inhibition of the PI3K/mTOR/MEK pathway induces Bim/Mcl-1-regulated apoptosis in pancreatic cancer cells. Cancer Biol Ther 2018; 20:21-30. [PMID: 30261145 PMCID: PMC6343713 DOI: 10.1080/15384047.2018.1504718] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) progression and chemotherapy insensitivity have been associated with aberrant PI3K/mTOR/MEK signalling. However, cell death responses activated by inhibitors of these pathways can differ – contextually varying with tumour genetic background. Here, we demonstrate that combining the dual PI3K/mTOR inhibitor PF5212384 (PF384) and MEK inhibitor PD325901 (PD901) more effectively induces apoptosis compared with either agent alone, independent of KRAS mutational status in PDAC cell lines. Additionally, a non-caspase dependent decrease in cell viability upon PF384 treatment was observed, and may be attributed to autophagy and G0/G1 cell cycle arrest. Using reverse phase protein arrays, we identify key molecular events associated with the conversion of cytostatic responses (elicited by single inhibitor treatments) into a complete cell death response when PF384 and PD901 are combined. This response was also independent of KRAS mutation, occurring in both BxPC3 (KRAS wildtype) and MIA-PaCa-2 (KRASG12C mutated) cells. In both cell lines, Bim expression increased in response to PF384/PD901 treatment (by 60% and 48%, respectively), while siRNA-mediated silencing of Bim attenuated the apoptosis induced by combination treatment. In parallel, Mcl-1 levels decreased by 36% in BxPC3, and 30% in MIA-PaCa-2 cells. This is consistent with a functional role for Mcl-1, and siRNA-mediated silencing enhanced apoptosis in PF384/PD901-treated MIA-PaCa-2 cells, whilst Mcl-1 overexpression decreased apoptosis induction by 24%. Moreover, a novel role was identified for PDCD4 loss in driving the apoptotic response to PF384/PD901 in BxPC3 and MIA-PaCa-2 cell lines. Overall, our data indicates PF384/PD901 co-treatment activates the same apoptotic mechanism in wild-type or KRAS mutant PDAC cells.
Collapse
Affiliation(s)
- Rajpal S Burmi
- a Department of Surgery and Cancer , Imperial College London , London , United Kingdom
| | - Elaina N Maginn
- a Department of Surgery and Cancer , Imperial College London , London , United Kingdom
| | - Hani Gabra
- a Department of Surgery and Cancer , Imperial College London , London , United Kingdom.,b Clinical Discovery Unit , Early Clinical Development, AstraZeneca , Cambridge , United Kingdom
| | - Euan A Stronach
- a Department of Surgery and Cancer , Imperial College London , London , United Kingdom
| | - Harpreet S Wasan
- a Department of Surgery and Cancer , Imperial College London , London , United Kingdom
| |
Collapse
|
20
|
Panayotopoulou EG, Müller AK, Börries M, Busch H, Hu G, Lev S. Targeting of apoptotic pathways by SMAC or BH3 mimetics distinctly sensitizes paclitaxel-resistant triple negative breast cancer cells. Oncotarget 2018; 8:45088-45104. [PMID: 28187446 PMCID: PMC5542169 DOI: 10.18632/oncotarget.15125] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 01/24/2017] [Indexed: 12/13/2022] Open
Abstract
Standard chemotherapy is the only systemic treatment for triple-negative breast cancer (TNBC), and despite the good initial response, resistance remains a major therapeutic obstacle. Here, we employed a High-Throughput Screen to identify targeted therapies that overcome chemoresistance in TNBC. We applied short-term paclitaxel treatment and screened 320 small-molecule inhibitors of known targets to identify drugs that preferentially and efficiently target paclitaxel-treated TNBC cells. Among these compounds the SMAC mimetics (BV6, Birinapant) and BH3-mimetics (ABT-737/263) were recognized as potent targeted therapy for multiple paclitaxel-residual TNBC cell lines. However, acquired paclitaxel resistance through repeated paclitaxel pulses result in desensitization to BV6, but not to ABT-263, suggesting that short- and long-term paclitaxel resistance are mediated by distinct mechanisms. Gene expression profiling of paclitaxel-residual, -resistant and naïve MDA-MB-231 cells demonstrated that paclitaxel-residual, as opposed to -resistant cells, were characterized by an apoptotic signature, with downregulation of anti-apoptotic genes (BCL2, BIRC5), induction of apoptosis inducers (IL24, PDCD4), and enrichment of TNFα/NF-κB pathway, including upregulation of TNFSF15, coupled with cell-cycle arrest. BIRC5 and FOXM1 downregulation and IL24 induction was also evident in breast cancer patient datasets following taxane treatment. Exposure of naïve or paclitaxel-resistant cells to supernatants of paclitaxel-residual cells sensitized them to BV6, and treatment with TNFα enhanced BV6 potency, suggesting that sensitization to BV6 is mediated, at least partially, by secreted factor(s). Our results suggest that administration of SMAC or BH3 mimetics following short-term paclitaxel treatment could be an effective therapeutic strategy for TNBC, while only BH3-mimetics could effectively overcome long-term paclitaxel resistance.
Collapse
Affiliation(s)
| | - Anna-Katharina Müller
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Melanie Börries
- Institute of Molecular Medicine and Cell Research (IMMZ), Albert Ludwigs-University, 79104 Freiburg, Germany
| | - Hauke Busch
- Institute of Molecular Medicine and Cell Research (IMMZ), Albert Ludwigs-University, 79104 Freiburg, Germany
| | - Guohong Hu
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Sima Lev
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| |
Collapse
|
21
|
Wang L, Ye N, Lian X, Peng F, Zhang H, Gong H. MiR-208a-3p aggravates autophagy through the PDCD4-ATG5 pathway in Ang II-induced H9c2 cardiomyoblasts. Biomed Pharmacother 2018; 98:1-8. [DOI: 10.1016/j.biopha.2017.12.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/13/2017] [Accepted: 12/04/2017] [Indexed: 10/18/2022] Open
|
22
|
Shi S, Lin S, Li Y, Zhang T, Shao X, Tian T, Zhou T, Li Q, Lin Y. Effects of tetrahedral DNA nanostructures on autophagy in chondrocytes. Chem Commun (Camb) 2018; 54:1327-1330. [PMID: 29349457 DOI: 10.1039/c7cc09397g] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Tetrahedral DNA nanostructures (TDNs) have gathered great attention and are being widely used in biomedicine.
Collapse
Affiliation(s)
- Sirong Shi
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Yong Li
- Department of Oral and Maxillofacial Surgery
- Hospital of Stomatology
- Southwest Medical University
- Luzhou 646000
- China
| | - Tao Zhang
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Xiaoru Shao
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Taoran Tian
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Tengfei Zhou
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Qianshun Li
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- P. R. China
| |
Collapse
|
23
|
Jiang Y, Jia Y, Zhang L. Role of programmed cell death 4 in diseases: a double-edged sword. Cell Mol Immunol 2017; 14:cmi201784. [PMID: 28920585 PMCID: PMC5675960 DOI: 10.1038/cmi.2017.84] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 07/23/2017] [Indexed: 12/28/2022] Open
Affiliation(s)
- Yang Jiang
- Hematology Department, The Second Hospital of Shandong University, Jinan, China
| | - Yufeng Jia
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan 250012, China
| | - Lining Zhang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan 250012, China
| |
Collapse
|
24
|
Yang F, Zhao L, Mei D, Jiang L, Geng C, Li Q, Yao X, Liu Y, Kong Y, Cao J. HMGA2 plays an important role in Cr (VI)-induced autophagy. Int J Cancer 2017; 141:986-997. [PMID: 28510366 DOI: 10.1002/ijc.30789] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 04/10/2017] [Accepted: 05/08/2017] [Indexed: 12/19/2022]
Abstract
Cr (VI) is mutagenic and carcinogenic, but the mechanism is unclear. In this study, the involvement of high mobility group A2 (HMGA2) in Cr (VI)-induced autophagy was investigated. Cr (VI) treatment induced formation of autophagosomes, increased expression of LC3II, Atg12-Atg5, Atg4, Atg10, HMGA1 and HMGA2 proteins, and decreased the expression of p62 in A549 cells. Silencing of HMGA2 gene by siRNA blocked Cr (VI)-induced formation of autophagosomes, expression of LC3II, Atg12-Atg5, Atg10 and reduction of p62. Overexpression of HMGA2 in HEK 293 and HeLa cells could induce the expression of LC3II, Atg12-Atg5 and Atg10, and decrease the expression of p62. Although the protein level of Atg12-Atg5 conjugation changed after Cr (VI) treatment, silencing of HMGA2 and overexpression of HMGA2, both the proteins and mRNA levels of Atg12 and Atg5 were not changed significantly. ChIP assay demonstrated that HMGA2 protein directly bound to the promoter sequence of Atg10 gene, which modulated the conjugation of Atg12-Atg5. Interestingly, 3-MA markedly prevented Cr (VI)-induced cell growth of A549 cells. Our further in vivo study confirmed that the expression of HMGA1, HMGA2, LC3II, Atg12-Atg5, Atg4, Atg5, Atg7, Atg10, Atg12, Beclin 1 were increased and p62 was reduced in lung tissues of Cr (VI)-treated BALB/c mice. Combining, our data demonstrated that HMGA2 plays an important role in Cr (VI)-induced autophagy and the mechanism underlies Atg12-Atg5 conjugation modulated by HMGA2-dependent transcriptional regulation of Atg10. This suggests that HMGA2 might be an important biomarker in Cr (VI)-induced autophagy, cell-growth or other toxicities.
Collapse
Affiliation(s)
- Fan Yang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lian Zhao
- Dalian Municipal Center for Disease Control & Prevention, Dalian, 116023, China
| | - Dan Mei
- Dalian Municipal Center for Disease Control & Prevention, Dalian, 116023, China
| | - Liping Jiang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Chengyan Geng
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Qiujuan Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Xiaofeng Yao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Yong Liu
- School of Life Science and Medicine, Dalian University of Technology, Panjin, 124221, China
| | - Ying Kong
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jun Cao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, 116044, China
| |
Collapse
|
25
|
Zhang X, Liu R, Huang B, Zhang X, Yu W, Bao C, Li J, Sun C. Programmed cell death 4 and BCR-ABL fusion gene expression are negatively correlated in chronic myeloid leukemia. Oncol Lett 2016; 12:2976-2981. [PMID: 27698886 DOI: 10.3892/ol.2016.4942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 07/20/2016] [Indexed: 02/07/2023] Open
Abstract
Programmed cell death 4 (PDCD4) is a tumor suppressor that inhibits carcinogenesis, tumor progression and invasion by preventing gene transcription and translation. Downregulation of PDCD4 expression has been identified in multiple types of human cancer, however, to date, the function of PDCD4 in leukemia has not been investigated. In the present study, PDCD4 mRNA and protein expression was investigated in 50 patients exhibiting various phases of chronic myeloid leukemia (CML) and 20 healthy individuals by reverse transcription-quantitative polymerase chain reaction and western blot analysis. PDCD4 expression and cell proliferation was also investigated following treatment with the tyrosine kinase inhibitor, imatinib, in K562 cells. The results demonstrated that PDCD4 mRNA and protein expression was decreased in all CML samples when compared with healthy controls, who expressed high levels of PDCD4 mRNA and protein. No significant differences in PDCD4 expression were identified between chronic phase, accelerated phase and blast phase CML patients. In addition, PDCD4 expression was negatively correlated with BCR-ABL gene expression (r=-0.6716; P<0.001). Furthermore, K562 cells treated with imatinib exhibited significantly enhanced PDCD4 expression. These results indicate that downregulation of PDCD4 expression may exhibit a critical function in the progression and malignant proliferation of human CML.
Collapse
Affiliation(s)
- Xia Zhang
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Riming Liu
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Baohua Huang
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Xiaolu Zhang
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Weijuan Yu
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Cuixia Bao
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Jie Li
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Chengming Sun
- Department of Laboratory Medicine, Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| |
Collapse
|
26
|
Mao XH, Chen M, Wang Y, Cui PG, Liu SB, Xu ZY. MicroRNA-21 regulates the ERK/NF-κB signaling pathway to affect the proliferation, migration, and apoptosis of human melanoma A375 cells by targeting SPRY1, PDCD4, and PTEN. Mol Carcinog 2016; 56:886-894. [PMID: 27533779 DOI: 10.1002/mc.22542] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 08/02/2016] [Accepted: 08/15/2016] [Indexed: 12/19/2022]
Abstract
This study aims to explore the effects of microRNA-21 (miR-21) and ERK/NF-κB signaling pathway on human melanoma A375 cells. The melanoma tissues and adjacent normal tissues were obtained from 45 melanoma patients. qRT-PCR was conducted to quantify the expression of miR-21 and the gene mRNA expressions. Human melanoma A375 cells were divided into the Mock, negative control (NC), miR-21 inhibitors, miR-21 inhibitors + siRNA-SPRY1, miR-21 inhibitors + siRNA-PDCD4, and miR-21 inhibitors + siRNA-PTEN groups. Western blotting was used to determine protein expressions. CCK8 assay and Transwell assay were performed to evaluate the proliferation, migration, and invasion of A375 cells. Annexin V/propidium iodide double staining was adopted to detect cell apoptosis. MiR-21 expression was higher in melanoma tissues than in adjacent tissues, while the mRNA and protein expressions of SPRY1, PDCD4, and PTEN were lower in melanoma tissues than in adjacent tissues. Compared with the Mock and NC groups, the miR-21 inhibitors group exhibited increased expressions of SPRY1, PDCD4, and PTEN and decreased expressions of ERK, p-ERK, NF-κB p65, and p-NF-κB p65. After transfection of miR-21 inhibitors, the proliferation, migration, and invasion of A375 cells were inhibited, while the apoptosis of A375 cells was promoted. However, the effects of miR-21 inhibitors on the growth, migration, invasion, and apoptosis of A375 cells were reversed after transfection of siRNA-SPRY1, siRNA-PDCD4, or siRNA-PTEN. MiR-21 can promote the proliferation, migration, and inhibit the apoptosis of human melanoma A375 cells by inhibiting SPRY1, PDCD4, and PTEN via ERK/NF-κB signaling pathway. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Xu-Hua Mao
- Department of Clinical Laboratory, Yixing People's Hospital, Wuxi, P.R. China
| | - Min Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, P.R. China
| | - Yan Wang
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, P.R. China
| | - Pan-Gen Cui
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, P.R. China
| | - Si-Bian Liu
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Zei-Yong Xu
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| |
Collapse
|
27
|
Ye Y, Fang Y, Xu W, Wang Q, Zhou J, Lu R. 3,3'-Diindolylmethane induces anti-human gastric cancer cells by the miR-30e-ATG5 modulating autophagy. Biochem Pharmacol 2016; 115:77-84. [PMID: 27372603 DOI: 10.1016/j.bcp.2016.06.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 06/28/2016] [Indexed: 12/12/2022]
Abstract
3,3'-Diindolylmethane (DIM), a class of relatively non-toxic indole derivatives from cruciferous vegetables, has been reported as a promising anticancer phytochemical, but the underlying molecular mechanism is not completely elucidated. In the present study we report a novel regulation of autophagy by DIM in human gastric cancer cells. We found that DIM dose-dependently inhibited the growth of gastric cancer cells in vitro and in vivo. Moreover, ATG5 and LC3 were activated by DIM in gastric cancer cells. Furthermore, miR-30e was down-regulated by DIM and miR-30e targeted the 3'-UTR of ATG5 to inhibit its translation. Overall, these results suggest that DIM may through the miR-30e-ATG5 modulating autophagy inhibit the proliferation of gastric cancer cells.
Collapse
Affiliation(s)
- Yang Ye
- Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yanfei Fang
- Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China; Department of Digestive Diseases, Affiliated Kunshan Hospital, Jiangsu University, Kunshan, Suzhou, Jiangsu, China
| | - Wenxia Xu
- Labortaory of Cancer Biology, Key Laboratory of Biotherapy in Zhejiang, Sir Runrun Shaw Hospital, Medical School of Zhejiang University, Zhejiang, China
| | - Qiang Wang
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Rongzhu Lu
- Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China; Center for Experimental Research, Affiliated Kunshan Hospital, Jiangsu University, Kunshan, Suzhou, Jiangsu, China.
| |
Collapse
|
28
|
Cui D, Xiong X, Zhao Y. Cullin-RING ligases in regulation of autophagy. Cell Div 2016; 11:8. [PMID: 27293474 PMCID: PMC4902950 DOI: 10.1186/s13008-016-0022-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/27/2016] [Indexed: 12/25/2022] Open
Abstract
Cullin-RING ligases (CRLs), the largest E3 ubiquitin ligase family, promote ubiquitination and degradation of various cellular key regulators involved in a broad array of physiological and pathological processes, including cell cycle progression, signal transduction, transcription, cardiomyopathy, and tumorigenesis. Autophagy, an intracellular catabolic reaction that delivers cytoplasmic components to lysosomes for degradation, is crucial for cellular metabolism and homeostasis. The dysfunction of autophagy has been proved to associate with a variety of human diseases. Recent evidences revealed the emerging roles of CRLs in the regulation of autophagy. In this review, we will focus mainly on recent advances in our understandings of the regulation of autophagy by CRLs and the cross-talk between CRLs and autophagy, two degradation systems. We will also discuss the pathogenesis of human diseases associated with the dysregulation of CRLs and autophagy. Finally, we will discuss current efforts and future perspectives on basic and translational research on CRLs and autophagy.
Collapse
Affiliation(s)
- Danrui Cui
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qing-Chun Road, Hangzhou, Zhejiang 310003 People's Republic of China ; Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kai-Xuan Road, Hangzhou, Zhejiang 310029 People's Republic of China
| | - Xiufang Xiong
- Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kai-Xuan Road, Hangzhou, Zhejiang 310029 People's Republic of China
| | - Yongchao Zhao
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qing-Chun Road, Hangzhou, Zhejiang 310003 People's Republic of China ; Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kai-Xuan Road, Hangzhou, Zhejiang 310029 People's Republic of China
| |
Collapse
|
29
|
Ding L, Gao F, Zhang M, Yan W, Tang R, Zhang C, Chen ZJ. Higher PDCD4 expression is associated with obesity, insulin resistance, lipid metabolism disorders, and granulosa cell apoptosis in polycystic ovary syndrome. Fertil Steril 2016; 105:1330-1337.e3. [DOI: 10.1016/j.fertnstert.2016.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 12/31/2015] [Accepted: 01/18/2016] [Indexed: 12/16/2022]
|
30
|
Quan M, Liu S, Wang Q, Li G, Zhang Y, Feng S, Liang J, Cheng J. NS5ATP9 Promotes Beclin 1-Dependent Starvation-Induced Autophagy of Hepatoblastoma Cells. J Cell Biochem 2016; 116:1574-82. [PMID: 25649430 DOI: 10.1002/jcb.25111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 01/23/2015] [Indexed: 12/16/2022]
Abstract
NS5ATP9, a gene up-regulated by NS5A, plays a crucial oncogenic role in several types of human tumours. However, the underlying mechanisms remain unclear. Autophagy, an evolutionarily conserved catabolic process, maintains cellular homeostasis under stress conditions, such as starvation, and plays a crucial role in tumour initiation and progression. Here, we report that NS5ATP9 mRNA and protein expression was up-regulated in starved HepG2 cells and that the up-regulated NS5ATP9 played a functional role in starvation-induced autophagy. Overexpression or silencing of this gene showed contrasting effects on Beclin 1 and on starvation-induced autophagy. Furthermore, NS5ATP9-mediated autophagy is required for promotion of tumour cell growth, and this effect could be inhibited with 3-methyladenine, chloroquine or by Beclin 1-silencing. Thus, the mechanism for NS5ATP9-promoted autophagy is Beclin 1-dependent in the condition of starvation, and for hepatoblastoma cell growth is also Beclin 1-dependent.
Collapse
Affiliation(s)
- Min Quan
- Department of General Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Shunai Liu
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Qi Wang
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Guoli Li
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Yu Zhang
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Shenghu Feng
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Jinqiu Liang
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| | - Jun Cheng
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, 100015, China
| |
Collapse
|
31
|
Wang L, Jiang Y, Song X, Guo C, Zhu F, Wang X, Wang Q, Shi Y, Wang J, Gao F, Zhao W, Chen YH, Zhang L. Pdcd4 deficiency enhances macrophage lipoautophagy and attenuates foam cell formation and atherosclerosis in mice. Cell Death Dis 2016; 7:e2055. [PMID: 26775706 PMCID: PMC4816189 DOI: 10.1038/cddis.2015.416] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 12/14/2015] [Accepted: 12/16/2015] [Indexed: 12/11/2022]
Abstract
Macrophage foam cells, a major component of the atherosclerotic lesion, have vital roles in the development of atherosclerosis. Lipoautophagy, a type of autophagy characterized by selective delivery of lipid droplet for lysosomal degradation, may impact atherosclerosis by regulating macrophage foam cell formation. Previously, we reported that programmed cell death 4 (PDCD4), a tumor suppressor, negatively regulated autophagy in tumor cells. However, its roles in macrophage lipoautophagy, foam cell formation and atherosclerosis remain to be established. Here we found that Pdcd4 deficiency clearly improved oxidized low-density lipoproteins-impaired autophagy efflux, promoted autophagy-mediated lipid breakdown in murine macrophages and thus prevented macrophage conversion into foam cells. Importantly, Pdcd4 deficiency in mice significantly upregulated macrophage autophagy in local plaques along with attenuated lipid accumulation and atherosclerotic lesions in high-fat-fed Apolipoprotein E knockout mice. Bone marrow transplantation experiment demonstrated that PDCD4-mediated autophagy in hematopoietic cells contributed to the development of atherosclerosis. These results indicate that endogenous PDCD4 promotes for macrophage foam cell formation and atherosclerosis development via inhibiting autophagy and provides new insights into atherogenesis, suggesting that promoting macrophage autophagy through downregulating PDCD4 expression may be beneficial for treating atherosclerosis.
Collapse
Affiliation(s)
- L Wang
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - Y Jiang
- Department of Immunology, Shandong University School of Medicine, Jinan, China.,Department of Hematology, the Second Hospital of Shandong University, Jinan, China
| | - X Song
- Department of Immunology, Shandong University School of Medicine, Jinan, China.,Basic Research Center, Shandong Cancer Hospital, Jinan, China
| | - C Guo
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - F Zhu
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - X Wang
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - Q Wang
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - Y Shi
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - J Wang
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - F Gao
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, China
| | - W Zhao
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| | - Y H Chen
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - L Zhang
- Department of Immunology, Shandong University School of Medicine, Jinan, China
| |
Collapse
|
32
|
Zhou M, Zeng J, Wang X, Wang X, Huang T, Fu Y, Sun T, Jia J, Chen C. Histone demethylase RBP2 decreases miR-21 in blast crisis of chronic myeloid leukemia. Oncotarget 2015; 6:1249-61. [PMID: 25575817 PMCID: PMC4359230 DOI: 10.18632/oncotarget.2859] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 11/25/2014] [Indexed: 12/31/2022] Open
Abstract
Chronic myeloid leukemia in the blastic phase (CML-BP) responds poorly to clinical treatments and is usually fatal. In this study, we found that the histone H3 lysine 4 (H3K4) demethylase RBP2 (also called JARID1A and KDM5A) is underexpressed in CML-BP. The RBP2 histone demethylase stimulates leukemia cell differentiation and inhibits cell proliferation. We identified miR-21 was directly downregulated by RBP2 and found that miR-21 downregulated PDCD4 expression in leukemia cells. By binding to miR-21 promoter and by demethylating of trimethylated H3K4 at the miR-21 locus, RBP2 downregulated miR-21 expression. This in turn activated PDCD4. In conclusion, RBP2 epigenetically downregulated miR-21 in blast transformation of CML.
Collapse
Affiliation(s)
- Minran Zhou
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Jiping Zeng
- Department of Biochemistry, School of Medicine, Shandong University, Jinan, Shandong, P. R. China
| | - Xiaoming Wang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Xiangyu Wang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Tao Huang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Yue Fu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Ting Sun
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Jihui Jia
- Department of Microbiology/Key Laboratory for Experimental Teratology of Chinese Ministry of Education, School of Medicine, Shandong University, Jinan, Shandong, P. R. China
| | - Chunyan Chen
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| |
Collapse
|
33
|
Zhao X, Zhang J, Chen C, Yang J, Zhu H, Liu M, Lv F. Deep sequencing-based comparative transcriptional profiles of Cymbidium hybridum roots in response to mycorrhizal and non-mycorrhizal beneficial fungi. BMC Genomics 2014; 15:747. [PMID: 25174959 PMCID: PMC4162972 DOI: 10.1186/1471-2164-15-747] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 08/22/2014] [Indexed: 02/01/2023] Open
Abstract
Background The Orchidaceae is one of the largest families in the plant kingdom and orchid mycorrhizae (OM) are indispensable in the life cycle of all orchids under natural conditions. In spite of this, little is known concerning the mechanisms underlying orchid- mycorrhizal fungi interactions. Our previous work demonstrated that the non-mycorrhizal fungus Umbelopsis nana ZH3A-3 could improve the symbiotic effects of orchid mycorrhizal fungus Epulorhiza repens ML01 by co-cultivation with Cymbidium hybridum plantlets. Thus, we investigated the C. hybridum transcript profile associated with different beneficial fungi. Results More than 54,993,972 clean reads were obtained from un-normalized cDNA library prepared from fungal- and mock- treated Cymbidium roots at four time points using RNA-seq technology. These reads were assembled into 16,798 unique transcripts, with a mean length of 1127 bp. A total of 10,971 (65.31%) sequences were annotated based on BLASTX results and over ninety percent of which were assigned to plant origin. The digital gene expression profiles in Cymbidium root at 15 days post inoculation revealed that 1674, 845 and 1743 genes were sigificantly regulated in response to ML01, ZH3A-3 and ML01+ ZH3A-3 treatments, respectively. Twenty-six genes in different regulation patterns were validated using quantitative RT-PCR. Our analysis showed that general defense responses were co- induced by three treatments, including cell wall modification, reactive oxygen species detoxification, secondary biosynthesis and hormone balance. Genes involved in phosphate transport and root morphogenesis were also detected to be up-regulated collectively. Among the OM specifically induced transcripts, genes related to signaling, protein metabolism and processing, defense, transport and auxin response were identifed. Aside from these orchid transcripts, some putative fungal genes were also identified in symbiotic roots related to plant cell wall degradation, remodeling the fungal cell wall and nutrient transport. Conclusion The orchid root transcriptome will facilitate our understanding of orchid - associated biological mechanism. The comparative expression profiling revealed that the transcriptional reprogramming by OM symbiosis generally overlapped that of arbuscular mycorrhizas and ectomycorrhizas. The molecular basis of OM formation and function will improve our knowledge of plant- mycorrhzial fungi interactions, and their effects on plant and fungal growth, development and differentiation. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-747) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Fubing Lv
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, East 1st Street 1, Jinying Road, Tianhe District, Guangzhou 510640, People's Republic of China.
| |
Collapse
|
34
|
Wang F, Xiao J, Shen Y, Yao F, Chen Y. Estrogen protects cardiomyocytes against lipopolysaccharide by inhibiting autophagy. Mol Med Rep 2014; 10:1509-12. [PMID: 25017426 DOI: 10.3892/mmr.2014.2365] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 03/27/2014] [Indexed: 11/05/2022] Open
Abstract
Autophagy has a significant role in myocardial injury induced by lipopolysaccharide (LPS). Estrogen (E2) has been demonstrated to protect cardiomyocytes against apoptosis; however, it remains to be determined whether it exhibits anti‑autophagic effects. The aim of the present study was to investigate whether estrogen-regulated autophagy attenuates cardiomyocyte injury induced by LPS. The cardiomyocytes of neonatal rats were randomized to the control (Con), LPS and estrogen + LPS groups. The LPS group was treated with 1 µg LPS for 24 h and the estrogen + LPS group was treated with 10‑8 M estrogen 30 min prior to treatment with LPS. Cardiomyocyte autophagy was quantitated by investigating the mRNA and protein level of autophagy‑related genes (Atgs). The mRNA expression of Atg5 and Beclin1 were measured by quantitative polymerase chain reaction and the microtubule‑associated protein light chain 3 (LC3) protein expression was measured by western blot analysis. To demonstrate the cardiomyocyte protection of estrogen, cell vitality and serum lactate dehydrogenase (LDH) levels were measured following LPS treatment. It was identified that LPS induced cardiomyocyte injury, together with the upregulation of Atg5, Beclin1 mRNA and LC3‑II protein. Furthermore, estrogen attenuated the effect of LPS. The present study provides evidence that estrogen has a myocardial protective role against injury induced by LPS by regulating autophagy.
Collapse
Affiliation(s)
- Fengmei Wang
- Department of Obstetrics and Gynaecology, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China
| | - Jian Xiao
- Department of Cardiothoracic Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China
| | - Yaofeng Shen
- Department of Anesthesiology, Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Feng Yao
- Department of Anesthesiology, Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Yu Chen
- Department of Obstetrics and Gynaecology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| |
Collapse
|
35
|
Fay MM, Clegg JM, Uchida KA, Powers MA, Ullman KS. Enhanced arginine methylation of programmed cell death 4 protein during nutrient deprivation promotes tumor cell viability. J Biol Chem 2014; 289:17541-52. [PMID: 24764298 DOI: 10.1074/jbc.m113.541300] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The role of programmed cell death 4 (PDCD4) in tumor biology is context-dependent. PDCD4 is described as a tumor suppressor, but its coexpression with protein arginine methyltransferase 5 (PRMT5) promotes accelerated tumor growth. Here, we report that PDCD4 is methylated during nutrient deprivation. Methylation occurs because of increased stability of PDCD4 protein as well as increased activity of PRMT5 toward PDCD4. During nutrient deprivation, levels of methylated PDCD4 promote cell viability, which is dependent on an enhanced interaction with eIF4A. Upon recovery from nutrient deprivation, levels of methylated PDCD4 are regulated by phosphorylation, which controls both the localization and stability of methylated PDCD4. This study reveals that, in response to particular environmental cues, the role of PDCD4 is up-regulated and is advantageous for cell viability. These findings suggest that the methylated form of PDCD4 promotes tumor viability during nutrient deprivation, ultimately allowing the tumor to grow more aggressively.
Collapse
Affiliation(s)
- Marta M Fay
- From the Oncological Sciences Department, Huntsman Cancer Institute and
| | - James M Clegg
- From the Oncological Sciences Department, Huntsman Cancer Institute and
| | - Kimberly A Uchida
- From the Oncological Sciences Department, Huntsman Cancer Institute and Department of Bioengineering, University of Utah, Salt Lake City, Utah 84112
| | - Matthew A Powers
- From the Oncological Sciences Department, Huntsman Cancer Institute and
| | | |
Collapse
|
36
|
Ge C, Song J, Chen L, Wang L, Chen Y, Liu X, Zhang Y, Zhang L, Zhang M. Atheroprotective pulsatile flow induces ubiquitin-proteasome-mediated degradation of programmed cell death 4 in endothelial cells. PLoS One 2014; 9:e91564. [PMID: 24626527 PMCID: PMC3953479 DOI: 10.1371/journal.pone.0091564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 02/12/2014] [Indexed: 01/18/2023] Open
Abstract
Objectives We recently found low level of tumor suppressor programmed cell death 4 (PDCD4) associated with reduced atherosclerotic plaque area (unpublished). We investigated whether atheroprotective unidirectional pulsatile shear stress affects the expression of PDCD4 in endothelial cells. Methods and Results En face co-immunostaining of the mouse aortic arch revealed a low level of PDCD4 in endothelial cells undergoing pulsatile shear stress. Application of unidirectional pulsatile shear stress to human umbilical vein endothelial cells (HUVECs) decreased PDCD4 protein but not mRNA level. Immunoprecipitation revealed that pulsatile shear stress induced the coupling of ubiquitin with PDCD4 expression. The phosphatidyl inositol 3-kinase (PI3K)/Akt pathway was involved in this ubiquitin-proteasome–mediated degradation of PDCD4. Gain of function and loss of function experiments showed that PDCD4 induced turnover (proliferation and apoptosis) of HUVECs. Low PDCD4 level was associated with reduced proliferation but not apoptosis or phosphorylation of endothelial nitric oxide synthase caused by pulsatile shear stress to help maintain the homeostasis of endothelial cells. Conclusions Pulsatile shear stress induces ubiquitin-proteasome–mediated degradation of PDCD4 via a PI3K/Akt pathway in HUVECs. PDCD4 induces turnover (proliferation and apoptosis) of HUVECs. Low PDCD4 level is associated with reduced proliferation for maintenance of HUVEC homeostasis under pulsatile shear stress.
Collapse
Affiliation(s)
- Cheng Ge
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Jiantao Song
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Liang Chen
- Department of Emergency, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Lin Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Yifei Chen
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Xinxin Liu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Yu Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
| | - Lining Zhang
- Department of Immunology, School of Medicine, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Mei Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, People’s Republic of China
- * E-mail:
| |
Collapse
|
37
|
Survival or death: disequilibrating the oncogenic and tumor suppressive autophagy in cancer. Cell Death Dis 2013; 4:e892. [PMID: 24176850 PMCID: PMC3920945 DOI: 10.1038/cddis.2013.422] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 02/05/2023]
Abstract
Autophagy (macroautophagy) is an evolutionarily conserved lysosomal degradation process, in which a cell degrades long-lived proteins and damaged organelles. Recently, accumulating evidence has revealed the core molecular machinery of autophagy in carcinogenesis; however, the intricate relationship between autophagy and cancer continue to remain an enigma. Why does autophagy have either pro-survival (oncogenic) or pro-death (tumor suppressive) role at different cancer stages, including cancer stem cell, initiation and progression, invasion and metastasis, as well as dormancy? How does autophagy modulate a series of oncogenic and/or tumor suppressive pathways, implicated in microRNA (miRNA) involvement? Whether would targeting the oncogenic and tumor suppressive autophagic network be a novel strategy for drug discovery? To address these problems, we focus on summarizing the dynamic oncogenic and tumor suppressive roles of autophagy and their relevant small-molecule drugs, which would provide a new clue to elucidate the oncosuppressive (survival or death) autophagic network as a potential therapeutic target.
Collapse
|