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Raja R, Sundararaj R, Kandasamy R. Identification of small molecule inhibitors against Lin28/ let-7 to suppress tumor progression and its alleviation role in LIN28-dependent glucose metabolism. Med Oncol 2024; 41:118. [PMID: 38630184 DOI: 10.1007/s12032-024-02350-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/04/2024] [Indexed: 04/19/2024]
Abstract
The reciprocal suppression of an RNA-binding protein LIN28 (human abnormal cell lineage 28) and miRNA Let-7 (Lethal 7) is considered to have a prime role in hepatocellular carcinoma (HCC). Though targeting this inhibition interaction is effective for therapeutics, it causes other unfavorable effects on glucose metabolism and increased insulin resistance. Hence, this study aims to identify small molecules targeting Lin28/let-7 interaction along with additional potency to improve insulin sensitivity. Of 22,14,996 small molecules screened by high throughput virtual screening, 6 molecules, namely 41354, 1558, 12437, 23837, 15710, and 8319 were able to block the LIN28 interaction with let-7 and increase the insulin sensitivity via interacting with PPARγ (peroxisome proliferator-activated receptors γ). MM-GBSA (Molecular Mechanics-Generalized Born Surface Area) analysis is used to re-score the binding affinity of docked complexes. Upon further analysis, it is also seen that these molecules have superior ADME (Absorption, Distribution, Metabolism, and Excretion) properties and form stable complexes with the targets for a significant period in a biologically simulated environment (Molecular Dynamics simulation) for 100 ns. From our results, we hypothesize that these identified 6 small molecules can be potential candidates for HCC treatment and the glucose metabolic disorder caused by the HCC treatment.
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Affiliation(s)
- Rachanaa Raja
- Centre for Excellence in Nanobio Translational Research, Department of Pharmaceutical Technology, University College of Engineering, Anna University (BIT Campus), Tiruchirappalli, Tamil Nadu, India
| | - Rajamanikandan Sundararaj
- Centre for Drug Discovery, Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India
| | - Ruckmani Kandasamy
- Centre for Excellence in Nanobio Translational Research, Department of Pharmaceutical Technology, University College of Engineering, Anna University (BIT Campus), Tiruchirappalli, Tamil Nadu, India.
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2
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Karabulut S, Şen S, Soydinç HO, Doğan İ, Taştekin D, Karabulut M, Duman M, Turan M. Investigation of the potential of miRNA candidates as non-invasive biomarkers for the diagnosis and follow-up of colorectal cancer. Pathol Res Pract 2024; 254:155094. [PMID: 38219497 DOI: 10.1016/j.prp.2024.155094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/02/2024] [Indexed: 01/16/2024]
Abstract
BACKGROUND Colorectal cancer (CRC) is the third most common cancer worldwide, and despite advances in treatment, molecular biomarkers are needed for both early diagnosis and prognosis monitoring. It is known that microRNAs (miRNA), one of the epigenetic mechanisms, are effective in the initiation and development of cancer by regulating the activity of tumor suppressors and/or oncogenes. In this study, the potential of the molecules let-7, miRNA125b, and miRNA30a, which are known to play a role in cellular processes, as biomarkers for colorectal cancer and their molecular mechanisms were investigated in this model. The aim was to evaluate the diagnostic, prognostic, and predictive utility of the target miRNAs in colorectal cancer patients. MATERIAL AND METHODS The expression changes of miRNAs let-7, miRNA125b, and miRNA30a were investigated by miRNAs isolation and cDNA synthesis from the serum samples of 60 patients diagnosed with CRC or from the serum samples of 20 healthy individuals. The calculation was performed using the quantitative real-time polymerase chain reaction method to determine the expression level. The results were compared with clinical parameters. RESULT An 8-fold decrease in the expression of let-7 and miRNA125b and a 60-fold decrease in the expression of miRNA30a were found in the serum samples of patients diagnosed with colorectal cancer (CRC) compared to the healthy group. A decrease in let-7 was observed in 53.3%, miRNA125b in 58.3%, and miRNA30a in 55% of patients. A significant correlation was found between the reduced expression status and the stage, lymph nodes, local recurrence, and metastasis (p < 0.05). The ROC analysis showed that the miRNA30a level could be a diagnostic biomarker for CRC (p < 0.001). No significant impact of target miRNA expression changes on overall disease survival was observed. CONCLUSION It is thought that the target miRNA30a can be used for early diagnosis and screening and that the target miRNA let-7, miRNA125b, and miRNA30a can be used as non-invasive biomarkers for disease follow-up, with larger patient studies being conducted on CRC patients.
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Affiliation(s)
- Senem Karabulut
- Department of Clinic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkiye; Department of Molecular Oncology, Hamidiye Health Sciences Institute, University of Health Sciences, Istanbul, Turkiye.
| | - Sena Şen
- Department of Basic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkiye
| | - Hilal Oğuz Soydinç
- Department of Basic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkiye
| | - İzzet Doğan
- Department of Clinic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkiye
| | - Didem Taştekin
- Department of Clinic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkiye
| | - Mehmet Karabulut
- Department of General Surgery, Dr. Sadi Konuk Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Mustafa Duman
- Department of Molecular Oncology, Hamidiye Health Sciences Institute, University of Health Sciences, Istanbul, Turkiye
| | - Mustafa Turan
- Department of Molecular Oncology, Hamidiye Health Sciences Institute, University of Health Sciences, Istanbul, Turkiye
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Li G, Wakao S, Kitada M, Dezawa M. Tumor suppressor let-7 acts as a key regulator for pluripotency gene expression in Muse cells. Cell Mol Life Sci 2024; 81:54. [PMID: 38261036 PMCID: PMC10805825 DOI: 10.1007/s00018-023-05089-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024]
Abstract
In embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), the expression of an RNA-binding pluripotency-relevant protein, LIN28, and the absence of its antagonist, the tumor-suppressor microRNA (miRNA) let-7, play a key role in maintaining pluripotency. Muse cells are non-tumorigenic pluripotent-like stem cells residing in the bone marrow, peripheral blood, and organ connective tissues as pluripotent surface marker SSEA-3(+). They express pluripotency genes, differentiate into triploblastic-lineage cells, and self-renew at the single cell level. Muse cells do not express LIN28 but do express let-7 at higher levels than in iPSCs. In Muse cells, we demonstrated that let-7 inhibited the PI3K-AKT pathway, leading to sustainable expression of the key pluripotency regulator KLF4 as well as its downstream genes, POU5F1, SOX2, and NANOG. Let-7 also suppressed proliferation and glycolysis by inhibiting the PI3K-AKT pathway, suggesting its involvement in non-tumorigenicity. Furthermore, the MEK/ERK pathway is not controlled by let-7 and may have a pivotal role in maintaining self-renewal and suppression of senescence. The system found in Muse cells, in which the tumor suppressor let-7, but not LIN28, tunes the expression of pluripotency genes, might be a rational cell system conferring both pluripotency-like properties and a low risk for tumorigenicity.
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Affiliation(s)
- Gen Li
- Department of Stem Cell Biology and Histology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Shohei Wakao
- Department of Stem Cell Biology and Histology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Masaaki Kitada
- Department of Stem Cell Biology and Histology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
- Department of Anatomy, Kansai Medical University School of Medicine, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1191, Japan.
| | - Mari Dezawa
- Department of Stem Cell Biology and Histology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
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Song J, Lv H, Liu B, Hao M, Taylor HS, Zhang X, Li D, Huang Y. Let-7 suppresses liver fibrosis by inhibiting hepatocyte apoptosis and TGF-β production. Mol Metab 2023; 78:101828. [PMID: 37898449 PMCID: PMC10641683 DOI: 10.1016/j.molmet.2023.101828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/17/2023] [Indexed: 10/30/2023] Open
Abstract
OBJECTIVE FAS-mediated apoptosis of hepatocytes and aberrant TGF-β signaling are major drivers of liver fibrosis. Decreased miRNA let-7 expression in the livers of patients and animals with fibrosis suggests a mechanistic link of let-7 to hepatic fibrogenesis. METHODS Using transient transfection we tested the effects of let-7 overexpression and TET3 siRNA knockdown on FAS and TGF-β1 expression and FAS-mediated apoptosis in human and mouse primary hepatocytes. We assessed the therapeutic activity of let-7 miRNA delivered via adeno-associated viral vectors in mouse models of carbon tetrachloride (CCl4)-induced and bile duct ligation (BDL)-induced liver fibrosis. RESULTS Let-7 decreased TGF-β1 production from hepatocytes through a negative feedback loop involving TET3. On the other hand, let-7 post-transcriptionally inhibits FAS expression, thereby suppressing hepatocyte apoptosis. Hepatic-specific delivery of let-7 miRNA mitigated liver fibrosis in both CCl4 and BDL mouse models. CONCLUSIONS Let-7 is a crucial node in the signaling networks that govern liver fibrosis progression. Let-7 and/or its derivatives may be used as therapeutic agents for liver fibrosis.
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Affiliation(s)
- Jiahui Song
- Center of Reproductive Medicine, National Health Commission Key Laboratory of Advanced Reproductive Medicine and Fertility, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Haining Lv
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Obstetrics and Gynecology and Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Beibei Liu
- Center of Reproductive Medicine, National Health Commission Key Laboratory of Advanced Reproductive Medicine and Fertility, Shengjing Hospital of China Medical University, Shenyang 110004, China; Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Mingjun Hao
- Center of Reproductive Medicine, National Health Commission Key Laboratory of Advanced Reproductive Medicine and Fertility, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Xuchen Zhang
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Da Li
- Center of Reproductive Medicine, National Health Commission Key Laboratory of Advanced Reproductive Medicine and Fertility, Shengjing Hospital of China Medical University, Shenyang 110004, China; Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Yingqun Huang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA; Yale Center for Molecular and Systems Metabolism, Yale University School of Medicine, New Haven, CT 06520, USA.
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Li Z, Xu Y, Lu S, Gao Y, Deng Y. Bone mesenchymal stem cell extracellular vesicles delivered miR let-7-5p alleviate endothelial glycocalyx degradation and leakage via targeting ABL2. Cell Commun Signal 2023; 21:205. [PMID: 37587494 PMCID: PMC10428537 DOI: 10.1186/s12964-023-01229-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/15/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Endothelial glycocalyx (EG) is an active player and treatment target in inflammatory-related vascular leakage. The bone marrow mesenchymal stem cells (bMSCs) are promising potential treatments for leakage; however, the therapeutic effect and mechanism of bMSC on EG degradation needs to be elucidated. METHODS EG degradation and leakage were evaluated in both lipopolysaccharide (LPS)-induced mice ear vascular leakage model and LPS-stimulated human umbilical vein endothelial cells (HUVECs) model treated with bMSCs. Extracellular vesicles (EVs) were extracted from bMSCs and the containing microRNA profile was analyzed. EV and miR let-7-5p were inhibited to determine their function in the therapeutic process. The ABL2 gene was knockdown in HUVECs to verify its role as a therapeutic target in EG degradation. RESULTS bMSCs treatment could alleviate LPS-induced EG degradation and leakage in vivo and in vitro, whereas EVs/let-7-5p-deficient bMSCs were insufficient to reduce EG degradation. LPS down-regulated the expression of let-7-5p while upregulated endothelial expression of ABL2 in HUVECs and induced EG degradation and leakage. bMSC-EVs uptaken by HUVECs could deliver let-7-5p targeting endothelial ABL2, which suppressed the activation of downstream p38MAPK and IL-6, IL-1β levels, and thus reversed LPS-induced EG degradation and leakage. CONCLUSION bMCSs alleviate LPS-induced EG degradation and leakage through EV delivery of miR let-7-5p targeting endothelial ABL2.
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Affiliation(s)
- Zhe Li
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong New District, Shanghai, 200120, China
| | - Yuqing Xu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong New District, Shanghai, 200120, China
| | - Shiyue Lu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong New District, Shanghai, 200120, China
| | - Yuan Gao
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong New District, Shanghai, 200120, China.
| | - Yuxiao Deng
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong New District, Shanghai, 200120, China.
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Chen J, Liu K, Liu W, Yeung WSB. The involvement of let-7 in hCG-induced progesterone synthesis via regulating p27 Kip1 and p21 Cip1 expression. Mol Cell Endocrinol 2023:111970. [PMID: 37230221 DOI: 10.1016/j.mce.2023.111970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 05/27/2023]
Abstract
Progesterone is essential in females to maintain a regular menstrual cycle and pregnancy. The luteinizing hormone (LH) surge induces the luteinization of granulosa cells and thecal cells to form the corpus luteum, which is responsible for progesterone synthesis. However, the specific mechanism of how hCG, the analog of LH, regulates progesterone synthesis has yet to be fully discovered. In this study, we found that progesterone level was increased in adult wild-type pregnant mice 2 and 7 days post-coitum, along with a decrease in let-7 expression compared with the estrus stage. Besides, the let-7 expression was negatively correlated with progesterone level in post-delivery day 23 wild-type female mice after being injected with PMSG and hCG. Then, using let-7 transgenic mice and a human granulosa cell line, we found that overexpression of let-7 antagonized progesterone level via targeting p27Kip1 and p21Cip1 and steroidogenic acute regulatory protein (StAR) expression, which is a rate-limiting enzyme in progesterone synthesis. Furthermore, hCG suppressed let-7 expression by stimulating the MAPK pathway. This study elucidated the role of microRNA let-7 in regulating hCG-induced progesterone production and provided new insights into its role in clinical application.
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Affiliation(s)
- Jing Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Department of Obstetrics and Gynaecology, Li Kai Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong, China
| | - Kui Liu
- Department of Obstetrics and Gynaecology, Li Kai Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong, China
| | - Weimin Liu
- Department of Obstetrics and Gynaecology, Li Kai Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518053, China.
| | - William Shu-Biu Yeung
- Department of Obstetrics and Gynaecology, Li Kai Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518053, China.
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Wang W, Zhang F, Guo K, Xu J, Zhao P, Xia Q. CRISPR/Cas9-mediated gene editing of the let-7 seed sequence improves silk yield in the silkworm, Bombyx mori. Int J Biol Macromol 2023:124793. [PMID: 37182624 DOI: 10.1016/j.ijbiomac.2023.124793] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023]
Abstract
Body size and silk protein synthesis ability are two crucial aspects of artificial selection in silkworm breeding; however, the role of genes in both pathways remains unknown. To determine whether let-7 microRNA could regulate larval development and silk gland growth simultaneously, we designed a guide RNA to edit let-7 using the CRISPR/Cas9 system. The indels predominantly appeared in the let-7 seed region, and the vast majority of the mutations were small-fragment deletions. Loss of let-7 function prolonged the fifth larval period, and substantially increased body weight during the wandering stage, but it resulted in developmental arrest during the pupal-moth transition. let-7 systemic knock down promoted silk gland growth and increased silk yield by >50 %, with efficiency significantly higher than in tissue-specific edited individuals. Hormone signaling and cell cycle pathway genes were activated in different patterns in the body and silk gland, implying that let-7 may regulate different target genes to play role in tissue growth. In summary, we first report that conditional knock down let-7 promoting the simultaneous growth of body and silk gland, greatly improve silk yield in the silkworm.
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Affiliation(s)
- Wei Wang
- Biological Science Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Southwest University, 400715 Chongqing, PR China; State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, PR China; Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, 400715 Chongqing, PR China
| | - Fan Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, PR China
| | - Kaiyu Guo
- Biological Science Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Southwest University, 400715 Chongqing, PR China; State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, PR China; Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, 400715 Chongqing, PR China
| | - Jiahui Xu
- Biological Science Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Southwest University, 400715 Chongqing, PR China
| | - Ping Zhao
- Biological Science Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Southwest University, 400715 Chongqing, PR China; State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, PR China; Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, 400715 Chongqing, PR China
| | - Qingyou Xia
- Biological Science Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Southwest University, 400715 Chongqing, PR China; State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, PR China; Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, 400715 Chongqing, PR China.
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Lee DW, Shin S, Kim JH, Lee C, Kim IY, Oh IH. Antisense Oligonucleotides against Let-7 Enhance the Therapeutic Potential of Mesenchymal Stromal Cells. Int J Mol Sci 2023; 24:ijms24108639. [PMID: 37239986 DOI: 10.3390/ijms24108639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/30/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Let-7 miRNAs have pleiotropic cellular functions in cell proliferation, migration, and regenerative processes. Here, we investigate whether the inhibition of let-7 miRNAs with antisense oligonucleotides (ASOs) can be a transient and safe strategy enhancing the therapeutic potential of mesenchymal stromal cells (MSCs) to overcome their limitations in cell therapeutic trials. We first identified major subfamilies of let-7 miRNAs preferentially expressed in MSCs, and efficient ASO combinations against these selected subfamilies that mimic the effects of LIN28 activation. When let-7 miRNAs were inhibited with an ASO combination (anti-let7-ASOs), MSCs exhibited higher proliferation with delayed senescence during the passaging into a culture. They also exhibited increased migration and enhanced osteogenic differentiation potential. However, these changes in MSCs were not accompanied by cell-fate changes into pericytes or the additional acquisition of stemness, but instead occurred as functional changes accompanied by changes in proteomics. Interestingly, MSCs with let-7 inhibition exhibited metabolic reprogramming characterized by an enhanced glycolytic pathway, decreased reactive oxygen species, and lower transmembrane potential in mitochondria. Moreover, let-7-inhibited MSCs promoted the self-renewal of neighboring hematopoietic progenitor cells, and enhanced capillary formation in endothelial cells. These findings together show that our optimized ASO combination efficiently reprograms the MSC functional state, allowing for more efficient MSC cell therapy.
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Affiliation(s)
- Dae-Won Lee
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, College of Medicine, The Catholic University, Seoul 06591, Republic of Korea
| | - Sungho Shin
- Chemical & Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jeong-Ho Kim
- Regen Innopharm Inc., Seoul 06591, Republic of Korea
| | - Cheolju Lee
- Chemical & Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - In Yong Kim
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, College of Medicine, The Catholic University, Seoul 06591, Republic of Korea
| | - Il-Hoan Oh
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, College of Medicine, The Catholic University, Seoul 06591, Republic of Korea
- Regen Innopharm Inc., Seoul 06591, Republic of Korea
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GEWALT TABEA, NOH KAWON, MEDER LYDIA. The role of LIN28B in tumor progression and metastasis in solid tumor entities. Oncol Res 2023; 31:101-115. [PMID: 37304235 PMCID: PMC10208000 DOI: 10.32604/or.2023.028105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/16/2023] [Indexed: 06/13/2023] Open
Abstract
LIN28B is an RNA-binding protein that targets a broad range of microRNAs and modulates their maturation and activity. Under normal conditions, LIN28B is exclusively expressed in embryogenic stem cells, blocking differentiation and promoting proliferation. In addition, it can play a role in epithelial-to-mesenchymal transition by repressing the biogenesis of let-7 microRNAs. In malignancies, LIN28B is frequently overexpressed, which is associated with increased tumor aggressiveness and metastatic properties. In this review, we discuss the molecular mechanisms of LIN28B in promoting tumor progression and metastasis in solid tumor entities and its potential use as a clinical therapeutic target and biomarker.
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Affiliation(s)
- TABEA GEWALT
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - KA-WON NOH
- Institute for Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - LYDIA MEDER
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
- Mildred Scheel School of Oncology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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Hudy D, Rzeszowska-Wolny J. Expression of miRNA-Targeted and Not-Targeted Reporter Genes Shows Mutual Influence and Intercellular Specificity. Int J Mol Sci 2022; 23. [PMID: 36499386 DOI: 10.3390/ijms232315059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022] Open
Abstract
The regulation of translation by RNA-induced silencing complexes (RISCs) composed of Argonaute proteins and micro-RNAs is well established; however, the mechanisms underlying specific cellular responses to miRNAs and how specific complexes arise are not completely clear. To explore these questions, we performed experiments with Renilla and firefly luciferase reporter genes transfected in a psiCHECK-2 plasmid into human HCT116 or Me45 cells, where only the Renilla gene contained sequences targeted by microRNAs (miRNAs) in the 3'UTR. The effects of targeting were miRNA-specific; miRNA-21-5p caused strong inhibition of translation, whereas miRNA-24-3p or Let-7 family caused no change or an increase in reporter Renilla luciferase synthesis. The mRNA-protein complexes formed by transcripts regulated by different miRNAs differed from each other and were different in different cell types, as shown by sucrose gradient centrifugation. Unexpectedly, the presence of miRNA targets on Renilla transcripts also affected the expression of the co-transfected but non-targeted firefly luciferase gene in both cell types. Renilla and firefly transcripts were found in the same sucrose gradient fractions and specific anti-miRNA oligoribonucleotides, which influenced the expression of the Renilla gene, and also influenced that of firefly gene. These results suggest that, in addition to targeted transcripts, miRNAs may also modulate the expression of non-targeted transcripts, and using the latter to normalize the results may cause bias. We discuss some hypothetical mechanisms which could explain the observed miRNA-induced effects.
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Radaeva M, Ho CH, Xie N, Zhang S, Lee J, Liu L, Lallous N, Cherkasov A, Dong X. Discovery of Novel Lin28 Inhibitors to Suppress Cancer Cell Stemness. Cancers (Basel) 2022; 14. [PMID: 36428779 DOI: 10.3390/cancers14225687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
Lin28 is a pluripotency factor that regulates cancer cell stem-like phenotypes to promote cancer development and therapy-resistant tumor progression. It acts through its cold shock domain and zinc knuckle domain (ZKD) to interact with the Let-7 pre-microRNA and block Let-7 biosynthesis. Chemical inhibition of Lin28 from interacting with Let-7 presents a therapeutic strategy for cancer therapy. Herein, we present the computer-aided development of small molecules by in silico screening 18 million compounds from the ZINC20 library, followed by the biological validation of 163 predicted compounds to confirm 15 new Lin28 inhibitors. We report three lead compounds, Ln7, Ln15, and Ln115, that target the ZKD of both Lin28A and Lin28B isoforms and block Lin28 from binding Let-7. They restore Let-7 expression and suppress tumor oncogenes such as SOX2 in cancer cells and show strong inhibitory effects on cancer cell stem-like phenotypes. However, minimal impacts of these compounds were observed on Lin28-negative cells, confirming the on-target effects of these compounds. We conclude from this study the discovery of several new Lin28 inhibitors as promising candidate compounds that warrant further drug development into potential anticancer therapies.
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12
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Azimi A, Afshar S, Matini M, Fallah M. Deciphering the role of miR-71 and let-7 in the fertility of cystic echinococcosis cysts: a preliminary assessment. Parasitol Res 2022; 121:3619-3625. [PMID: 36266590 DOI: 10.1007/s00436-022-07687-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 10/04/2022] [Indexed: 11/25/2022]
Abstract
Cystic echinococcosis (CE) is a neglected helminthic zoonosis in many parts of the world. Some CE cysts in the intermediate host are non-fertile. Considering the function of microRNAs in many biological processes such as embryonic development, cell proliferation, and apoptosis, this study investigated the function and comparison of miR-71 and let-7 in fertile and non-fertile CE cysts. Here, we determined the expression level of the miRNAs for 33 animal cysts and 16 human cysts (Echinococcus granulosus sensu stricto (G1). The quantitative real-time PCR method was conducted for the expression evaluation of miR-71 and let-7. The expression of both miRNAs in all samples was determined using the following formula: [ΔCT = CT (target) - CT (internal control)]. A comparison of Δct of miR-71 and let-7 in fertile and non-fertile cysts did not show a significant difference (P = 0.911 and 0.354). In cattle, sheep, and humans, Δct of miR-71, and let-7 were higher, respectively. Therefore, the mean expression of miR-71 and let-7 indicates an increase in humans compared to other intermediate hosts. Also, statistical results show a significant difference in the expression of these miRNAs in sheep, cattle, and human cysts (P = 0.025 and 0.01). The lower expression of these miRNAs in cattle cysts and their common infertility might be associated with the hypothesis and function of miRNAs in the fertility of CE cysts. So we should not ignore the function and role of miRNAs in this subject due to the importance of infertility in E. granulosus epidemiology.
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Affiliation(s)
- Afshin Azimi
- Department of Medical Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Saeid Afshar
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Matini
- Department of Medical Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Fallah
- Department of Medical Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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13
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Jiang J, Zeng T, Zhang L, Fan X, Jin Q, Ni H, Ye Y, Cheng L, Li L, Wang L, Xu S, Yang Y, Gu J, Guo B, Wang L, Li X, Qin Y, Li J, Wang J, Chen X, Wu M, Ying QL, Qin X, Wang Y, Wang Y. Optimization of Cas9 RNA sequence to reduce its unexpected effects as a microRNA sponge. Mol Cancer 2022; 21:136. [PMID: 35751058 PMCID: PMC9229757 DOI: 10.1186/s12943-022-01604-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/06/2022] [Indexed: 11/28/2022] Open
Abstract
Cas9 RNA functions as a miRNA sponge. Let-7 is the dominant regulated miRNA by Cas9 RNA. RNA sequence optimization of Cas9 by synonymous mutation improves its safety.
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Affiliation(s)
- Junfeng Jiang
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China.,Research Center of Developmental Biology, Shanghai Key Laboratory of Cell Engineering, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China
| | - Tao Zeng
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China.,Research Center of Developmental Biology, Shanghai Key Laboratory of Cell Engineering, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China.,The 901th Hospital of PLA Jiont Logistic Support Force, HeFei, 230031, China
| | - Li Zhang
- Department of Pathology, Faculty of Medical Imaging, Naval Medical University, Shanghai, 200433, China
| | - Xingfei Fan
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China.,Research Center of Developmental Biology, Shanghai Key Laboratory of Cell Engineering, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China
| | - Qishu Jin
- Department of Histology and Embryology, Harbin Medical University, Harbin, 150086, China
| | - Haitao Ni
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Yusheng Ye
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Lipeng Cheng
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Li Li
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Liujun Wang
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Sha Xu
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Yu Yang
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Juan Gu
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Bing Guo
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,National Clinical Research Center for Oral Diseases, Shanghai, 200011, China.,Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhi Zao Ju Road, Shanghai, 200011, China
| | - Lei Wang
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,National Clinical Research Center for Oral Diseases, Shanghai, 200011, China.,Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhi Zao Ju Road, Shanghai, 200011, China
| | - Xin Li
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,National Clinical Research Center for Oral Diseases, Shanghai, 200011, China.,Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhi Zao Ju Road, Shanghai, 200011, China
| | - Yingyi Qin
- Department of health statistics, Naval Medical University, Shanghai, 200433, China
| | - Jiaxi Li
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Jinjiang Wang
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Xi Chen
- Department of Cell and Neurobiology, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, USA
| | - Minjuan Wu
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China
| | - Qi-Long Ying
- Department of Cell and Neurobiology, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, USA.
| | - Xingjun Qin
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. .,National Clinical Research Center for Oral Diseases, Shanghai, 200011, China. .,Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhi Zao Ju Road, Shanghai, 200011, China.
| | - Yefei Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. .,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China.
| | - Yue Wang
- Histology and Embryology Department, Naval Medical University, Shanghai, 200433, China. .,Research Center of Developmental Biology, Shanghai Key Laboratory of Cell Engineering, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China.
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14
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Xie D, Chen F, Zhang Y, Shi B, Song J, Chaudhari K, Yang SH, Zhang GJ, Sun X, Taylor HS, Li D, Huang Y. Let-7 underlies metformin-induced inhibition of hepatic glucose production. Proc Natl Acad Sci U S A 2022; 119:e2122217119. [PMID: 35344434 PMCID: PMC9169108 DOI: 10.1073/pnas.2122217119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/26/2022] [Indexed: 12/16/2022] Open
Abstract
SignificanceA clear mechanistic understanding of metformin's antidiabetic effects is lacking. This is because suprapharmacological concentrations of metformin have been used in most studies. Using mouse models and human primary hepatocytes, we show that metformin, at clinically relevant doses, suppresses hepatic glucose production by activating a conserved regulatory pathway encompassing let-7, TET3, and a fetal isoform of hepatocyte nuclear factor 4 alpha (HNF4α). We demonstrate that metformin no longer has potent antidiabetic actions in a liver-specific let-7 loss-of-function mouse model and that hepatic delivery of let-7 ameliorates hyperglycemia and improves glucose homeostasis. Our results thus reveal an important role of the hepatic let-7/TET3/HNF4α axis in mediating the therapeutic effects of metformin and suggest that targeting this axis may be a potential therapeutic for diabetes.
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Affiliation(s)
- Di Xie
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
- Yale Center for Molecular and Systems Metabolism, Yale University School of Medicine, New Haven, CT 06520
| | - Fan Chen
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
| | - Yuanyuan Zhang
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
| | - Bei Shi
- Medical Basic Experimental Teaching Center, China Medical University, Shenyang 110004, China
| | - Jiahui Song
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Kiran Chaudhari
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107
| | - Shao-Hua Yang
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107
| | - Gary J. Zhang
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
| | - Xiaoli Sun
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
| | - Hugh S. Taylor
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
| | - Da Li
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yingqun Huang
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510
- Yale Center for Molecular and Systems Metabolism, Yale University School of Medicine, New Haven, CT 06520
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15
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Letafati A, Najafi S, Mottahedi M, Karimzadeh M, Shahini A, Garousi S, Abbasi-Kolli M, Sadri Nahand J, Tamehri Zadeh SS, Hamblin MR, Rahimian N, Taghizadieh M, Mirzaei H. MicroRNA let-7 and viral infections: focus on mechanisms of action. Cell Mol Biol Lett 2022; 27:14. [PMID: 35164678 DOI: 10.1186/s11658-022-00317-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/26/2022] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are fundamental post-transcriptional modulators of several critical cellular processes, a number of which are involved in host defense mechanisms. In particular, miRNA let-7 functions as an essential regulator of the function and differentiation of both innate and adaptive immune cells. Let-7 is involved in several human diseases, including cancer and viral infections. Several viral infections have found ways to dysregulate the expression of miRNAs. Extracellular vesicles (EV) are membrane-bound lipid structures released from many types of human cells that can transport proteins, lipids, mRNAs, and miRNAs, including let-7. After their release, EVs are taken up by the recipient cells and their contents released into the cytoplasm. Let-7-loaded EVs have been suggested to affect cellular pathways and biological targets in the recipient cells, and can modulate viral replication, the host antiviral response, and the action of cancer-related viruses. In the present review, we summarize the available knowledge concerning the expression of let-7 family members, functions, target genes, and mechanistic involvement in viral pathogenesis and host defense. This may provide insight into the development of new therapeutic strategies to manage viral infections.
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16
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Li CH, Liao CC. The Metabolism Reprogramming of microRNA Let-7-Mediated Glycolysis Contributes to Autophagy and Tumor Progression. Int J Mol Sci 2021; 23:113. [PMID: 35008539 PMCID: PMC8745176 DOI: 10.3390/ijms23010113] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/22/2022] Open
Abstract
Cancer is usually a result of abnormal glucose uptake and imbalanced nutrient metabolization. The dysregulation of glucose metabolism, which controls the processes of glycolysis, gives rise to various physiological defects. Autophagy is one of the metabolic-related cellular functions and involves not only energy regeneration but also tumorigenesis. The dysregulation of autophagy impacts on the imbalance of metabolic homeostasis and leads to a variety of disorders. In particular, the microRNA (miRNA) Let-7 has been identified as related to glycolysis procedures such as tissue repair, stem cell-derived cardiomyocytes, and tumoral metastasis. In many cancers, the expression of glycolysis-related enzymes is correlated with Let-7, in which multiple enzymes are related to the regulation of the autophagy process. However, much recent research has not comprehensively investigated how Let-7 participates in glycolytic reprogramming or its links to autophagic regulations, mainly in tumor progression. Through an integrated literature review and omics-related profiling correlation, this review provides the possible linkage of the Let-7 network between glycolysis and autophagy, and its role in tumor progression.
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Affiliation(s)
- Chien-Hsiu Li
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan;
| | - Chiao-Chun Liao
- Department of Tropical Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Institute of Public Health and Department of Social Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
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17
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Yazarlou F, Kadkhoda S, Ghafouri-Fard S. Emerging role of let-7 family in the pathogenesis of hematological malignancies. Biomed Pharmacother 2021; 144:112334. [PMID: 34656064 DOI: 10.1016/j.biopha.2021.112334] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/04/2021] [Accepted: 10/10/2021] [Indexed: 12/30/2022] Open
Abstract
Let-7 includes a family of miRNA which are implicated in the developmental processes as well as carcinogenesis. This miRNA family has been shown to influence pathogenesis of a variety of hematological malignancies through changing expression of a number of oncogenic pathways, particularly those related with MYC. Expression of these miRNAs has been found to be different between distinct hematological malignancies or even between cytogenetically-defined subgroups of a certain malignancy. In the current review, we summarize the data regarding biogenesis, genomic locations, targets and regulatory network of this miRNA family in the context of hematological malignancies.
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Affiliation(s)
- Fatemeh Yazarlou
- Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Kadkhoda
- Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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18
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Abstract
SALL4 is a zinc finger transcription factor that belongs to the spalt-like (SALL) gene family. It plays important roles in the maintenance of self-renewal and pluripotency of embryonic stem cells, and its expression is repressed in most adult organs. SALL4 re-expression has been observed in different types of human cancers, and dysregulation of SALL4 contributes to the pathogenesis, metastasis, and even drug resistance of multiple cancer types. Surprisingly, little is known regarding how SALL4 expression is controlled, but recently microRNAs (miRNAs) have emerged as important regulators of SALL4. Due to the ability of regulating targets differentially in specific tissues, and recent advances in systemic and organ specific miRNA delivery mechanisms, miRNAs have emerged as promising therapeutic targets for cancer treatment. In this review, we summarize current knowledge of the interaction between SALL4 and miRNAs in mammalian development and cancer, paying particular attention to the emerging roles of the Let-7/Lin28 axis. In addition, we discuss the therapeutic prospects of targeting SALL4 using miRNA-based strategies, with a focus on the Let-7/LIN28 axis.
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Affiliation(s)
- Jun Liu
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | - Madeline A. Sauer
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | | | - Junyu Yang
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | - Daniel G. Tenen
- Cancer Science Institute, National University of Singapore, Singapore 117599, Singapore
- Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Li Chai
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
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19
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Serej ZA, Ebrahimi A, Kazemi T, Najafi S, Amini M, Nastarin P, Baghbani E, Baradaran B. NANOG gene suppression and replacement of let-7 modulate the stemness, invasion, and apoptosis in breast cancer. Gene 2021; 801:145844. [PMID: 34274471 DOI: 10.1016/j.gene.2021.145844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 06/06/2021] [Accepted: 07/13/2021] [Indexed: 02/06/2023]
Abstract
In the treatment of breast cancer (BC), as an important type of cancer in women, the specific cells, called cancer stem cells (CSCs), are the reason of failure and metastasis. So, targeting CSCs can be used as a novel strategy in cancer therapy in addition to common therapeutic strategies. According to the importance of CSCs, we tried to find a correlation between stemness and metastatic characteristics of BC cells, to address whether CSCs are a potential target for cancer therapy. Here, we evaluated the NANOG inhibition by siRNA and the increase of Let-7a levels by miRNA mimic in breast cancer cells and the effects of these changes on biologic aspects like cell apoptosis, stemness and invasion. Our results showed that the inhibition of NANOG combined with Let-7a restoration contributed to significant decrease in malignant phenotypes and stemness feature of BC cells. In conclusion, these findings showed that the combination of Let-7a miRNA mimic and Nanog siRNA could be exploited as a new treatment strategy to improve the cancer therapy outcome.
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Affiliation(s)
- Zeynab Aliyari Serej
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ayyub Ebrahimi
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Halic University, Istanbul, Turkey
| | - Tohid Kazemi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Souzan Najafi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amini
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parastou Nastarin
- Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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20
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Ghosh S, Kumar V, Mukherjee H, Lahiri D, Roy P. Nutraceutical regulation of miRNAs involved in neurodegenerative diseases and brain cancers. Heliyon 2021; 7:e07262. [PMID: 34195404 PMCID: PMC8225984 DOI: 10.1016/j.heliyon.2021.e07262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/24/2021] [Accepted: 06/05/2021] [Indexed: 12/12/2022] Open
Abstract
The human brain is a well-connected, intricate network of neurons and supporting glial cells. Neurodegenerative diseases arise as a consequence of extensive loss of neuronal cells leading to disruption of their natural structure and function. On the contrary, rapid proliferation and growth of glial as well as neuronal cells account for the occurrence of malignancy in brain. In both cases, the molecular microenvironment holds pivotal importance in the progression of the disease. MicroRNAs (miRNA) are one of the major components of the molecular microenvironment. miRNAs are small, noncoding RNAs that control gene expression post-transcriptionally. As compared to other tissues, the brain expresses a substantially high number of miRNAs. In the early stage of neurodegeneration, miRNA expression upregulates, while in oncogenesis, miRNA expression is gradually lost. Neurodegeneration and brain cancer is presumed to be under the influence of identical pathways of cell proliferation, differentiation and cell death which are tightly regulated by miRNAs. It has been confirmed experimentally that miRNA expression can be regulated by nutraceuticals - macronutrients, micronutrients or natural products derived from food; thereby making dietary supplements immensely significant for targeting miRNAs having altered expression patterns during neurodegeneration or oncogenesis. In this review, we will discuss in detail, about the common miRNAs involved in brain cancers and neurodegenerative diseases along with the comprehensive list of miRNAs involved separately in both pathological conditions. We will also discuss the role of nutraceuticals in the regulation of those miRNAs which are involved in both of these pathological conditions.
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Affiliation(s)
- Souvik Ghosh
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
- Biomaterials and Multiscale Mechanics Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
- Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Viney Kumar
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Haimanti Mukherjee
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Debrupa Lahiri
- Biomaterials and Multiscale Mechanics Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
- Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Partha Roy
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
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21
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Akamine PS, Lima CR, Lustoza-Costa GJ, Fuziwara CS, Del Debbio CB, Kimura ET, Santos MF, Hamassaki DE. Age-related increase of let-7 family microRNA in rat retina and vitreous. Exp Eye Res 2021; 204:108434. [PMID: 33412132 DOI: 10.1016/j.exer.2020.108434] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/01/2020] [Accepted: 12/28/2020] [Indexed: 11/21/2022]
Abstract
Vitreous alterations occur from early stages and continue through the normal aging, with gradual lamellae formation and the appearance of liquefied spaces, which eventually leads to complications, such as retinal tear, retinal detachment, and intravitreal hemorrhage. The aim of the present study was to investigate the expression of let-7 miRNA family in the vitreous and retina in newborn (1-3- day-old), young adult (2-month-old), and aging (12-month-old) rats, as well as their role as regulators of vitreous components. MicroRNAs are small, non-coding RNAs that post-transcriptionally regulate gene expression. Our results showed detection of all investigated let-7 isoforms (let-7a, let-7b, let-7c, let-7d, let-7e, let-7f and let-7i) in the retina and vitreous. Although most let-7 members were significantly upregulated in the vitreous during development, only let-7b, let-7c, and let-7e followed this same expression pattern in the retina. Let-7b and -7c increased in aging vitreous as well, and were expressed in vitro by Müller glial cells and their extracellular vesicles. Moreover, let-7 targeted hyaluronan synthase 2 (Has2) mRNA, a synthesizing enzyme of hyaluronan. These observations indicate that let-7 function is important during retina and vitreous development, and that isoforms of let-7 increased with aging, potentially modulating hyaluronan content.
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22
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Chae HJ, Seo JB, Kim SH, Jeon YJ, Suh SS. Fhit induces the reciprocal suppressions between Lin28/ Let-7 and miR-17/92miR. Int J Med Sci 2021; 18:706-714. [PMID: 33437205 PMCID: PMC7797533 DOI: 10.7150/ijms.51429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Objective: Fhit gene is known as a genome "caretaker" and frequently inactivated by deletion or hypermethylation on the promoter in several cancers. In spite of several lines of evidence, the exact mechanism underlying Fhit-induced biology is relatively less studied. This study will focus the role of Fhit in regulating Lin28 and microRNAs (miRNAs) loop. Material and Methods: To this end, we employed Fhit overexpressing isogenic cell lines to conduct miRNA nanostring array, and differentially expressed miRNAs were identified. Using real-time PCR and Western blot analysis, expression levels of Lin28b or miRNAs were investigated in response to the overexpression of Fhit gene in H1299 lung cancer cells. Results: A series of in vitro including gene nanostring analyses revealed that Lin28B protein was induced by Fhit gene overexpression, which consequently suppressed Let-7 miRNAs. Also, we found that miRNAs in miR-17/92 clusters are redundantly increased and there is an inverse correlation between Let-7 and miR-17/92 clusters in Fhit-expressing cells. Also, a series of in vitro experiments suggests that ELF-1- and/or STAT1-dependent Lin28b regulation is responsible for Let-7 induction in Fhit-expressing cancer cells. Conclusions: Based on the same experimental system proving that Fhit gene has a robust role in suppressing tumor progression and epithelial-mesenchymal transition, our data show that Fhit mediates the negative feedback between Lin28/Let-7 axis and miR-17/-92 miRNA although the physiological relevance of current interesting observation should be further investigated.
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Affiliation(s)
- Hae-Jung Chae
- Department of Biosciences, Mokpo National University, Joennam 58554, South Korea
| | - Jong Bae Seo
- Department of Biosciences, Mokpo National University, Joennam 58554, South Korea.,Department of Biomedicine, Health & Life Convergence Science, BK21 Four, Mokpo National University, Joennam 58554, South Korea
| | - Sung-Hak Kim
- Lab of Animal Molecular Biochemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Young-Jun Jeon
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, South Korea
| | - Sung-Suk Suh
- Department of Biosciences, Mokpo National University, Joennam 58554, South Korea.,Department of Biomedicine, Health & Life Convergence Science, BK21 Four, Mokpo National University, Joennam 58554, South Korea
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23
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Zhou T, Lin K, Nie J, Pan B, He B, Pan Y, Sun H, Xu T, Wang S. LncRNA SPINT1-AS1 promotes breast cancer proliferation and metastasis by sponging let-7 a/b/i-5p. Pathol Res Pract 2021; 217:153268. [PMID: 33246290 DOI: 10.1016/j.prp.2020.153268] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND A growing number of studies have shown that long non-coding RNAs (lncRNAs) play an important role in the occurrence and development of tumors. In this study, we explored the function and molecular mechanism of lncRNA SPINT1-AS1 in breast cancer progression. METHODS A total of 30 patients and 25 healthy controls were enrolled to detect the expression of SPINT1-AS1 in the serum by RT-qPCR. CCK-8 assay, clone formation assay, EdU assay, Transwell assay, Flow cytometry for apoptosis assay and wound healing assays were used to explore the effects of SPINT1-AS1 on the proliferation and migration of breast cancer cells. Bioinformatics analysis were used to enrich the downstream target genes and related pathways of miRNAs interacting with SPINT1-AS1, construct a competitive endogenous RNA (ceRNA) network diagram. RESULTS SPINT1-AS1 is up-regulated in the serum of breast cancer patients and breast cancer cell lines. The proliferation and migration ability of breast cancer cells were decreased significantly after SPINT1-AS1 knockdown, and it may inhibit its expression by sponging miR-let-7a/b/i-5p, thereby promoting breast cancer progression. CONCLUSIONS SPINT1-AS1 can promote the proliferation and migration of breast cancer cells by regulating miR-let-7a/b/i-5p, suggesting that it may be an important regulator of breast cancer progression.
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24
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Lin CQ, Chen LK. Cerebral dopamine neurotrophic factor promotes the proliferation and differentiation of neural stem cells in hypoxic environments. Neural Regen Res 2020; 15:2057-2062. [PMID: 32394962 PMCID: PMC7716052 DOI: 10.4103/1673-5374.282262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/03/2019] [Accepted: 01/02/2020] [Indexed: 02/07/2023] Open
Abstract
Previous research found that cerebral dopamine neurotrophic factor (CDNF) has a protective effect on brain dopaminergic neurons, and CDNF is regarded as a promising therapeutic agent for neurodegenerative diseases. However, the effects of CDNF on the proliferation, differentiation, and apoptosis of neural stem cells (NSCs), which are very sensitive to hypoxic environments, remain unknown. In this study, NSCs were extracted from the hippocampi of fetal rats and cultured with different concentrations of CDNF. The results showed that 200 nM CDNF was the optimal concentration for significantly increasing the viability of NSCs under non-hypoxic environmental conditions. Then, the cells were cultured with 200 nM CDNF under the hypoxic conditions of 90% N2, 5% CO2, and 5% air for 6 hours. The results showed that CDNF significantly improved the viability of hypoxic NSCs and reduced apoptosis among hypoxic NSCs. The detection of markers showed that CDNF increased the differentiation of hypoxic NSCs into neurons and astrocytes. CDNF also reduced the expression level of Lin28 protein and increased the expression of Let-7 mRNA in NSCs, under hypoxic conditions. In conclusion, we determined that CDNF was able to reverse the adverse proliferation, differentiation, and apoptosis effects that normally affect NSCs in a hypoxic environment. Furthermore, the Lin28/Let-7 pathway may be involved in this regulated function of CDNF. The present study was approved by the Laboratory Animal Centre of Southeast University, China (approval No. 20180924006) on September 24, 2018.
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Affiliation(s)
- Chao-Qun Lin
- School of Medicine, Southeast University, Nanjing, Jiangsu Province, China
| | - Lu-Kui Chen
- School of Medicine, Southeast University, Nanjing, Jiangsu Province, China
- Department of Neurosurgery, Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong Province, China
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25
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Abstract
BACKGROUND Lung cancer is the leading cause of cancer-related deaths worldwide and the overall survival of patients with non-small cell lung cancer has not been improved. Let-7 family has been shown to act as tumor suppressors by inhibiting oncogenes and key regulators of mitogenic pathways, while far fewer clinical studies addressing the association between let-7 expression and the disease prognosis have been published up to date. Therefore, our meta-analysis aims to determine the prognostic significance of let-7 expression in lung cancer patients. METHODS PubMed, EMBASE, the Web of Science and China National Knowledge Infrastructure (CNKI) databases were searched for full-text literature citations. We applied the hazard ratio (HR) with 95% confidence interval (CI) as the appropriate summarized statistics. Q-test and I2 statistic were used to estimate the level of heterogeneity. The publication bias was detected by Begg's test and Egger's test. RESULTS Seven eligible studies involving 2,262 patients were selected for this meta-analysis. The combined HR for the seven eligible studies was 0.61 (95% CI: 0.53-0.70, P<0.00001) and heterogeneity of overall prognosis was relatively high (I2=76.4%, P=0.000). We conducted a further subgroup analysis, including an evaluation of the relationship between let-7 expression, lung cancer pathology, race, and sample size. All the results revealed that a significantly low let-7 expression in patients was an indicator of poor survival. Neither Begg's test nor Egger's test found publication bias in any analysis. CONCLUSIONS The present evidence indicates that the low let-7 expression can be considered as a significant predictor of worse prognosis in patients with lung cancer. The findings of our meta-analysis may be further confirmed in the future by the use of more updated review pooling and more relevant investigations.
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Affiliation(s)
- Cheng Shen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jue Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Guowei Che
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
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26
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Farokhzad N, Hosseini SM, Edalat H, Sadeghi M. Association of Rs61764370 polymorphism within let-7 microRNA-binding site with lung cancer in Iranian population. Afr Health Sci 2020; 20:1299-1303. [PMID: 33402978 PMCID: PMC7751538 DOI: 10.4314/ahs.v20i3.35] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION Polymorphisms within miRNAs binding sites are associated with miRNAs function. The aim of this study was to investigate the relationship between rs61764370 polymorphism within let-7 miRNA binding site in KRAS gene and the risk of lung cancer in Iranian population. METHODS This case-control study was conducted with 100 lung cancer patients and 100 healthy persons. The rs61764370 polymorphism was analyzed using PCR-RFLP technique and direct sequencing. RESULTS We found a significant relationship between rs61764370 (T / G) polymorphism and lung cancer risk, the GT genotype (OR: 6.25; 95% CI = 2.605-15.00; P= 0.000) and G allele (OR: 5.25; 95% CI = 2.259-12.208; P= 0.000) were significantly associated with an increased risk of lung cancer. CONCLUSION According to our findings, there is a significant relationship between the KRAS rs61764370 polymorphism and lung cancer risk in Iranian population and this polymorphism may be used as a marker in detection of lung cancer in the future.
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Affiliation(s)
- Neda Farokhzad
- Human Genetics Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sayed Mostafa Hosseini
- Human Genetics Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Houri Edalat
- Human Genetics Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Morteza Sadeghi
- Human Genetics Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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27
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Zabegina L, Nazarova I, Knyazeva M, Nikiforova N, Slyusarenko M, Titov S, Vasilyev D, Sleptsov I, Malek A. MiRNA let-7 from TPO(+) Extracellular Vesicles is a Potential Marker for a Differential Diagnosis of Follicular Thyroid Nodules. Cells 2020; 9:E1917. [PMID: 32824820 DOI: 10.3390/cells9081917] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/14/2020] [Accepted: 08/15/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The current approaches to distinguish follicular adenomas (FA) and follicular thyroid cancer (FTC) at the pre-operative stage have low predictive value. Liquid biopsy-based analysis of circulating extracellular vesicles (EVs) presents a promising diagnostic method. However, the extreme heterogeneity of plasma EV population hampers the development of new diagnostic tests. We hypothesize that the isolation of EVs with thyroid-specific surface molecules followed by miRNA analysis, may have improved diagnostic potency. METHODS The total population of EVs was isolated from the plasma of patients with FA (n = 30) and FTC (n = 30). Thyroid peroxidase (TPO)-positive EVs were isolated from the total populations using immune-beads. The miRNA from the TPO(+)EVs obtained from the plasma of FA and FTC patients was assayed by RT-PCR. The diagnostic potency of the selected miRNAs was estimated by the receiver operating characteristic (ROC) analysis. RESULTS TPO(+)EVs can be efficiently isolated by immunobeads. The analysis of Let-7 family members in TPO(+)EVs allows one to distinguish FA and FTC with high accuracy (area under curve defined by ROC = 0.77-0.84). CONCLUSION The isolation of TPO(+)EVs, followed by RT-qPCR analysis of Let-7 family members, may present a helpful approach to manage follicular nodules in the thyroid gland.
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28
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Sato T, Kataoka K, Ito Y, Yokoyama S, Inui M, Mori M, Takahashi S, Akita K, Takada S, Ueno-Kudoh H, Asahara H. Lin28a/let-7 pathway modulates the Hox code via Polycomb regulation during axial patterning in vertebrates. eLife 2020; 9:53608. [PMID: 32479258 PMCID: PMC7259951 DOI: 10.7554/elife.53608] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 05/18/2020] [Indexed: 01/06/2023] Open
Abstract
The body plan along the anteroposterior axis and regional identities are specified by the spatiotemporal expression of Hox genes. Multistep controls are required for their unique expression patterns; however, the molecular mechanisms behind the tight control of Hox genes are not fully understood. In this study, we demonstrated that the Lin28a/let-7 pathway is critical for axial elongation. Lin28a–/– mice exhibited axial shortening with mild skeletal transformations of vertebrae, which were consistent with results in mice with tail bud-specific mutants of Lin28a. The accumulation of let-7 in Lin28a–/– mice resulted in the reduction of PRC1 occupancy at the Hox cluster loci by targeting Cbx2. Consistently, Lin28a loss in embryonic stem-like cells led to aberrant induction of posterior Hox genes, which was rescued by the knockdown of let-7. These results suggest that the Lin28/let-7 pathway is involved in the modulation of the ‘Hox code’ via Polycomb regulation during axial patterning.
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Affiliation(s)
- Tempei Sato
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Kensuke Kataoka
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Yoshiaki Ito
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Research Core, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shigetoshi Yokoyama
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan.,Laboratory of Metabolism, National Institutes of Health, Bethesda, United States
| | - Masafumi Inui
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan.,Laboratory of Animal Regeneration Systemology, Meiji University, Kanagawa, Japan
| | - Masaki Mori
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Medical Chemistry, Shiga University of Medical Science, Shiga, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, University of Tsukuba, Ibaraki, Japan
| | - Keiichi Akita
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuji Takada
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Hiroe Ueno-Kudoh
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan.,Reproduction Center, Yokohama City University, Yokohama, Japan
| | - Hiroshi Asahara
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan.,AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.,Department of Molecular Medicine, The Scripps Research Institute, La Jolla, United States
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29
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Liang T, Han L, Guo L. Rewired functional regulatory networks among miRNA isoforms (isomiRs) from let-7 and miR-10 gene families in cancer. Comput Struct Biotechnol J 2020; 18:1238-1248. [PMID: 32542110 PMCID: PMC7280754 DOI: 10.1016/j.csbj.2020.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 05/05/2020] [Accepted: 05/05/2020] [Indexed: 01/05/2023] Open
Abstract
Classical microRNA (miRNA) has been so far believed as a single sequence, but it indeed contains multiple miRNA isoforms (isomiR) with various sequences and expression patterns. It is not clear whether these diverse isomiRs have potential relationships and whether they contribute to miRNA:mRNA interactions. Here, we aimed to reveal the potential evolutionary and functional relationships of multiple isomiRs based on let-7 and miR-10 gene families that are prone to clustering together on chromosomes. Multiple isomiRs within gene families showed similar functions to their canonical miRNAs, indicating selection of the predominant sequence. IsomiRs containing novel seed regions showed increased/decreased biological function depending on whether they had more/less specific target mRNAs than their annotated seed. Few gene ontology(GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were shared among the target genes of the annotated seeds and the novel seeds. Various let-7 isomiRs with novel seed regions may cause opposing drug responses despite the fact that they are generated from the same miRNA locus and have highly similar sequences. IsomiRs, especially the dominant isomiRs with shifted seeds, may disturb the coding-non-coding RNA regulatory network. These findings provide insight into the multiple isomiRs and isomiR-mediated control of gene expression in the pathogenesis of cancer.
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Key Words
- ACC, adrenocortical carcinoma
- BLCA, bladder urothelial carcinoma
- BRCA, breast invasive carcinoma
- CESC, cervical squamous cell carcinoma and endocervical adenocarcinoma
- CHOL, cholangiocarcinoma
- COAD, colon adenocarcinoma
- ESCA, esophageal carcinoma
- Function
- GBM, glioblastoma multiforme
- HNSC, head and neck squamous cell carcinoma
- IsomiR
- KICH, kidney chromophobe
- KIRC, kidney renal clear cell carcinoma
- KIRP, kidney renal papillary cell carcinoma
- LAML, acute myeloid leukemia
- LGG, brain Lower grade glioma
- LIHC, liver hepatocellular carcinoma
- LUAD, lung adenocarcinoma
- LUSC, lung squamous cell carcinoma
- Let-7
- MESO, mesothelioma
- MicroRNA (miRNA)
- Network
- OV, ovarian serous cystadenocarcinoma
- PAAD, pancreatic adenocarcinoma
- PCPG, pheochromocytoma and paraganglioma
- PRAD, prostate adenocarcinoma
- READ, rectum adenocarcinoma
- SARC, sarcoma
- SKCM, skin cutaneous melanoma
- STAD, stomach adenocarcinoma
- TGCT, testicular germ cell tumors
- THCA, thyroid carcinoma
- THYM, thymoma
- TSG, tumor suppressor gene
- UCEC, uterine corpus endometrial carcinoma
- UCS, uterine carcinosarcoma
- UVM, uveal melanoma
- miR-10
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Affiliation(s)
- Tingming Liang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Leng Han
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX 77030, USA
| | - Li Guo
- Department of Bioinformatics, Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
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30
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Chen D, Cox J, Annam J, Weingart M, Essien G, Rathi KS, Rokita JL, Khurana P, Cuya SM, Bosse KR, Pilgrim A, Li D, Shields C, Laur O, Maris JM, Schnepp RW. LIN28B promotes neuroblastoma metastasis and regulates PDZ binding kinase. Neoplasia 2020; 22:231-241. [PMID: 32339949 PMCID: PMC7186370 DOI: 10.1016/j.neo.2020.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/28/2020] [Accepted: 04/01/2020] [Indexed: 12/17/2022]
Abstract
Neuroblastoma is an aggressive pediatric malignancy of the neural crest with suboptimal cure rates and a striking predilection for widespread metastases, underscoring the need to identify novel therapeutic vulnerabilities. We recently identified the RNA binding protein LIN28B as a driver in high-risk neuroblastoma and demonstrated it promotes oncogenic cell proliferation by coordinating a RAN-Aurora kinase A network. Here, we demonstrate that LIN28B influences another key hallmark of cancer, metastatic dissemination. Using a murine xenograft model of neuroblastoma dissemination, we show that LIN28B promotes metastasis. We demonstrate that this is in part due to the effects of LIN28B on self-renewal and migration, providing an understanding of how LIN28B shapes the metastatic phenotype. Our studies reveal that the let-7 family, which LIN28B inhibits, decreases self-renewal and migration. Next, we identify PDZ Binding Kinase (PBK) as a novel LIN28B target. PBK is a serine/threonine kinase that promotes the proliferation and self-renewal of neural stem cells and serves as an oncogenic driver in multiple aggressive malignancies. We demonstrate that PBK is both a novel direct target of let-7i and that MYCN regulates PBK expression, thus elucidating two oncogenic drivers that converge on PBK. Functionally, PBK promotes self-renewal and migration, phenocopying LIN28B. Taken together, our findings define a role for LIN28B in neuroblastoma metastasis and define the targetable kinase PBK as a potential novel vulnerability in metastatic neuroblastoma.
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Affiliation(s)
- Dongdong Chen
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Julie Cox
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Jayabhargav Annam
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Melanie Weingart
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Grace Essien
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Komal S Rathi
- Center for Data-Driven Discovery in Biomedicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Bioinformatics and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Jo Lynne Rokita
- Center for Data-Driven Discovery in Biomedicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Bioinformatics and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Priya Khurana
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Selma M Cuya
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Kristopher R Bosse
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Adeiye Pilgrim
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Daisy Li
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Cara Shields
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | | | - John M Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert W Schnepp
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA; Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA.
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31
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Yamada H, Shimura M, Takahashi H, Nara S, Morishima Y, Go S, Miyashita T, Numabe H, Kawashima H. A familial case of overgrowth syndrome caused by a 9q22.3 microdeletion in a mother and daughter. Eur J Med Genet 2020; 63:103872. [PMID: 32028043 DOI: 10.1016/j.ejmg.2020.103872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 11/27/2019] [Accepted: 02/01/2020] [Indexed: 01/23/2023]
Abstract
Microdeletions in the 9q22.3 chromosomal region can cause macrosomia with characteristic features, including prenatal-onset overgrowth, metopic craniosynostosis, hydrocephalus, developmental delay, and intellectual disability, in addition to manifestations of nevoid basal cell carcinoma syndrome (NBCCS). Haploinsufficiency of PTCH1 may be responsible for accelerated overgrowth, but the mechanism of macrosomia remains to be elucidated. We report a familial case with a 9q22.3 microdeletion, manifesting with prenatal-onset overgrowth in a mother and post-natal overgrowth in her daughter. Although both were clinically diagnosed with NBCCS, they had characteristic features of 9q22.3 microdeletion, especially the daughter. Microarray comparative genomic hybridization analysis revealed a 4.0 Mb deletion of chromosome 9q22.3 in both individuals. Among the 11 reported patients of overgrowth and/or macrosomia, a 550 Kb region encompassing PTCH1, C9orf3, FANCC, and 5 miRNAs is the most commonly deleted region. The let-7 family miRNAs, which are involved in diverse cellular processes including growth and tumor processes, were identified in the deleted regions in 10 of 11 patients. Characteristic features of 9q22.3 microdeletion might be associated with decreased expression of let-7.
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Affiliation(s)
- Hikari Yamada
- Department of Pediatrics, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan
| | - Masaru Shimura
- Department of Pediatrics, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan.
| | - Hidekuni Takahashi
- Department of Pediatrics, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan
| | - Shonosuke Nara
- Department of Pediatrics and Adolescent Medicine, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasuyuki Morishima
- Clinical Genetics Center, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Soken Go
- Department of Pediatrics, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan
| | - Toshiyuki Miyashita
- Department of Molecular Genetics, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara-shi, Kanagawa, 252-0374, Japan
| | - Hironao Numabe
- Clinical Genetics Center, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hisashi Kawashima
- Department of Pediatrics and Adolescent Medicine, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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32
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Bozgeyik E. Bioinformatic Analysis and in Vitro Validation of Let-7b and Let-7c in Breast Cancer. Comput Biol Chem 2020; 84:107191. [PMID: 31901542 DOI: 10.1016/j.compbiolchem.2019.107191] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/03/2019] [Accepted: 12/10/2019] [Indexed: 12/21/2022]
Abstract
Members of the let-7 family of miRNAs are well-known with their tumor suppressor properties as they are expressed at low levels in several types of human malignancies. Among them, let-7b and let-7c have gained special attention due their broad significance. Although the role of let-7b and let-7c have been widely reported in various types of cancers, their functional importance and role in oncogenic signaling of breast cancer is poorly investigated. Therefore, in the present study, prognostic and diagnostic significance of let-7b and let-7c in breast cancer and the effects these miRNAs on genes involved in cancer progression were determined by using several bioinformatics analysis and validated in vitro mimic assays, respectively. Using data of TCGA, OncomiR and dbDEMC 2.0, overall expression analysis of let-7b and let-7c was performed. The effect of let-7b and let-7c on genes involved in cancer progression was investigated by mimic transfection assays. We found that both let-7b and let-7c were significantly altered in breast cancer and associated with the clinicopathological findings of patients. Additionally, both let-7b and let-7c significantly altered oncogenic signaling in breast cancer cells. Consequently, both miRNAs might have fundamental roles in breast cancer progression and can be considered as potential targets for breast cancer therapy and diagnosis.
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Affiliation(s)
- Esra Bozgeyik
- Tekirdag Namik Kemal University, Faculty of Medicine, Department of Medical Biology, Tekirdag, Turkey.
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Mulholland EJ, Green WP, Buckley NE, McCarthy HO. Exploring the Potential of MicroRNA Let-7c as a Therapeutic for Prostate Cancer. Mol Ther Nucleic Acids 2019; 18:927-937. [PMID: 31760377 PMCID: PMC6883330 DOI: 10.1016/j.omtn.2019.09.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 09/02/2019] [Accepted: 09/08/2019] [Indexed: 01/20/2023]
Abstract
Prostate cancer (PCa) is one of the leading causes of mortality worldwide and often presents with aberrant microRNA (miRNA) expression. Identifying and understanding the unique expression profiles could aid in the detection and treatment of this disease. This review aims to identify miRNAs as potential therapeutic targets for PCa. Three bio-informatic searches were conducted to identify miRNAs that are reportedly implicated in the pathogenesis of PCa. Only hsa-Lethal-7 (let-7c), recognized for its role in PCa pathogenesis, was common to all three databases. Three further database searches were conducted to identify known targets of hsa-let-7c. Four targets were identified, HMGA2, c-Myc (MYC), TRAIL, and CASP3. An extensive review of the literature was undertaken to assess the role of hsa-let-7c in the progression of other malignancies and to evaluate its potential as a therapeutic target for PCa. The heterogeneous nature of cancer makes it logical to develop mechanisms by which the treatment of malignancies is tailored to an individual, harnessing specific knowledge of the underlying biology of the disease. Resetting cellular miRNA levels is an exciting prospect that will allow this ambition to be realized.
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Affiliation(s)
- Eoghan J Mulholland
- Gastrointestinal Stem Cell Biology Laboratory, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - William P Green
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland
| | - Niamh E Buckley
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland.
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Yang Z, Liu C, Wu H, Xie Y, Gao H, Zhang X. CSB affected on the sensitivity of lung cancer cells to platinum-based drugs through the global decrease of let-7 and miR-29. BMC Cancer 2019; 19:948. [PMID: 31615563 PMCID: PMC6792260 DOI: 10.1186/s12885-019-6194-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 09/24/2019] [Indexed: 12/16/2022] Open
Abstract
Background Transcription-coupled nucleotide excision repair (TC-NER) plays a prominent role in the removal of DNA adducts induced by platinum-based chemotherapy reagents. Cockayne syndrome protein B (CSB), the master sensor of TCR, is also involved in the platinum resistant. Let-7 and miR-29 binding sites are highly conserved in the proximal 3′UTR of CSB. Methods We conducted immunohistochemisty to examine the expression of CSB in NSCLC. To determine whether let-7 family and miR-29 family directly interact with the putative target sites in the 3′UTR of CSB, we used luciferase reporter gene analysis. To detect the sensitivity of non-small cell lung cancer (NSCLC) cells to platinum-based drugs, CCK analysis and apoptosis analysis were performed. Results We found that let-7 and miR-29 negatively regulate the expression of CSB by directly targeting to the 3′UTR of CSB. The endogenous CSB expression could be suppressed by let-7 and miR-29 in lung cancer cells. The suppression of CSB activity by endogenous let-7 and miR-29 can be robustly reversed by their sponges. Down-regulation of CSB induced apoptosis and increased the sensitivity of NSCLC cells to cisplatin and carboplatin drugs. Let-7 and miR-29 directly effect on cisplatin and carboplatin sensitivity in NSCLC. Conclusions In conclusion, the platinum-based drug resistant of lung cancer cells may involve in the regulation of let-7 and miR-29 to CSB.
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Affiliation(s)
- Zhenbang Yang
- Institute of Molecular Genetics, College of Life Science, North China University of Science and Technology, Tangshan, China.,Hebei Key Laboratory of Basic Medicine for Chronic Disease, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, China
| | - Chunling Liu
- Department of Pathology, Affiliated Tangshan Renmin Hospital North China University of Science and Technology, Tangshan, China
| | - Hongjiao Wu
- Institute of Molecular Genetics, College of Life Science, North China University of Science and Technology, Tangshan, China
| | - Yuning Xie
- Institute of Molecular Genetics, College of Life Science, North China University of Science and Technology, Tangshan, China.,Institute of Epidemiology, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Hui Gao
- Institute of Molecular Genetics, College of Life Science, North China University of Science and Technology, Tangshan, China.,Institute of Epidemiology, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Xuemei Zhang
- Institute of Molecular Genetics, College of Life Science, North China University of Science and Technology, Tangshan, China.
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Li X, Liang T, Chen SS, Wang M, Wang R, Li K, Wang JC, Xu CW, Du N, Qin S, Ren H. Matrine suppression of self-renewal was dependent on regulation of LIN28A/ Let-7 pathway in breast cancer stem cells. J Cell Biochem 2019; 121:2139-2149. [PMID: 31595560 DOI: 10.1002/jcb.29396] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 08/28/2019] [Indexed: 12/26/2022]
Abstract
Matrine, a natural product extracted from the root of Sophora flavescens Ait, was the main chemical ingredient of compounds of Kushen injection, which has been widely used for its remarkable anticancer effects for years. The underlying mechanisms for Matrine regulations of human breast cancer stem cells (BrCSCs) are barely known. LIN28, a well-characterized suppressor of Let-7 microRNA biogenesis, playing vital roles in regulations of stem cells' renewal and tumorigenesis. Here we show that the compounds of Kushen injection derived Matrine could suppress the BrCSCs differentiation and self-renewal through downregulating the expression of Lin28A, resulting in the inactivation of Wnt pathway through a Let-7b-dependent way. In opposite to Matrine, Cisplatin treatment increases the ability of tumorsphere formation and the expression of BrCSCs markers, which was partially blocked by either Let-7b overexpression or CCND1 inhibition. Furthermore, Matrine sensitized BrCSCs to cisplatin's suppression of cancer expansion in vitro and in vivo. Our study uncovers the role of the LIN28A/Let-7 in BrCSCs renewal, and more importantly, elucidated a novel mechanism by which Matrine induces breast cancer involution.
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Affiliation(s)
- Xiang Li
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | | | - Si-Si Chen
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Meng Wang
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Rui Wang
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kai Li
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ji-Chang Wang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chong-Wen Xu
- Department of Otorhinolaryngology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ning Du
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Sida Qin
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hong Ren
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Gundermann DG, Martínez J, De Kervor G, González-Pinto K, Larraín J, Faunes F. Overexpression of Lin28a delays Xenopus metamorphosis and down-regulates albumin independently of its translational regulation domain. Dev Dyn 2019; 248:969-978. [PMID: 31397023 DOI: 10.1002/dvdy.98] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/24/2019] [Accepted: 08/05/2019] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Lin28 regulates stem cell biology and developmental timing. At the molecular level Lin28 inhibits the biogenesis of the micro RNA let-7 and directly controls the transcription and translation of several genes. In Xenopus, Lin28 overexpression delays metamorphosis and affects the expression of genes of the thyroid hormone (TH) axis. The TH carrier albumin, synthesized by the liver, is down-regulated in limbs and tail after Lin28 overexpression. The molecular mechanisms underlying the interaction between Lin28, let-7, and the hypothalamus-pituitary-thyroid gland (HPT) axis are unknown. RESULTS We found that precursor and mature forms of let-7 increase during Xenopus metamorphosis. In the liver, lin28b is down-regulated and albumin is up-regulated during metamorphosis. Overexpression of a truncated form of Lin28a (Lin28aΔC), which has been shown not to interact with RNA helicase A to regulate translation, delays metamorphosis, indicating that the translational regulation domain is not required to inhibit the HPT axis. Importantly, both full length Lin28a and Lin28aΔC block the increase of albumin mRNA in the liver independently of changes in TH signaling. CONCLUSIONS These results suggest that Lin28 delays metamorphosis through regulation of let-7 and that the decrease of the TH carrier albumin is one of the early changes after Lin28 overexpression.
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Affiliation(s)
- Daniel G Gundermann
- Center for Aging and Regeneration, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago, Chile
| | - Jimena Martínez
- Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Viña del Mar, Chile
| | - Genevieve De Kervor
- Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Viña del Mar, Chile
| | - Karina González-Pinto
- Center for Aging and Regeneration, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago, Chile
| | - Juan Larraín
- Center for Aging and Regeneration, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago, Chile
| | - Fernando Faunes
- Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Viña del Mar, Chile
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37
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Koerner MV, Chhatbar K, Webb S, Cholewa-Waclaw J, Selfridge J, De Sousa D, Skarnes B, Rosen B, Thomas M, Bottomley J, Ramires-Solis R, Lelliott C, Adams DJ, Bird A. An Orphan CpG Island Drives Expression of a let-7 miRNA Precursor with an Important Role in Mouse Development. Epigenomes 2019; 3:7. [PMID: 31354981 DOI: 10.3390/epigenomes3010007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Most human genes are associated with promoters embedded in non-methylated, G + C-rich CpG islands (CGIs). Not all CGIs are found at annotated promoters, however, raising the possibility that many serve as promoters for transcripts that do not code for proteins. To test this hypothesis, we searched for novel transcripts in embryonic stem cells (ESCs) that originate within orphan CGIs. Among several candidates, we detected a transcript that included three members of the let-7 micro-RNA family: Let-7a-1, let-7f-1, and let-7d. Deletion of the CGI prevented expression of the precursor RNA and depleted the included miRNAs. Mice homozygous for this mutation were sub-viable and showed growth and other defects. The results suggest that despite the identity of their seed sequences, members of the let-7 miRNA family exert distinct functions that cannot be complemented by other members.
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Jiang S, Yan W, Wang SE, Baltimore D. Dual mechanisms of posttranscriptional regulation of Tet2 by Let-7 microRNA in macrophages. Proc Natl Acad Sci U S A 2019; 116:12416-21. [PMID: 31160465 DOI: 10.1073/pnas.1811040116] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tet methylcytosine dioxygenase 2 (Tet2) is an epigenetic regulator that removes methyl groups from deoxycytosine residues in DNA. Tet2-deficient murine macrophages show increased lipopolysaccharide (LPS)-induced and spontaneous inflammation at least partially because Tet2 acts to restrain interleukin (IL)-1β and IL-6 expression in induced cells. MicroRNAs have emerged as critical regulatory noncoding RNAs that tune immune cell responses to physiological perturbations and play roles in pathological conditions in macrophages. To determine if a microRNA played any role in Tet2 activity, we examined the interrelationship of Tet2 action and the let-7 microRNA family, utilizing several let-7 microRNA engineered murine models. We first showed that Tet2, but not Tet3, is a direct target of the let-7a-1/let-7d/let-7f-1 (let-7adf) microRNAs in macrophages. We found that overexpression or deletion of the let-7adf gene cluster causes altered IL-6 induction both in tissue culture cells induced by LPS treatment in vitro as well as in a Salmonella infection mouse model in vivo. Mechanistically, let-7adf promotes IL-6 by directly repressing Tet2 levels and indirectly by enhancing a Tet2 suppressor, the key TCA cycle metabolite, succinate. We found that Let-7adf promotes succinate accumulation by regulating the Lin28a/Sdha axis. We thereby identify two pathways of let-7 control of Tet2 and, in turn, of the key inflammatory cytokine, IL-6, thus characterizing a regulatory pathway in which a microRNA acts as a feedback inhibitor of inflammatory processes.
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Huang B, Huang LF, Zhao L, Zeng Z, Wang X, Cao D, Yang L, Ye Z, Chen X, Liu B, He TC, Wang X. Microvesicles (MIVs) secreted from adipose-derived stem cells (ADSCs) contain multiple microRNAs and promote the migration and invasion of endothelial cells. Genes Dis 2019; 7:225-234. [PMID: 32215292 PMCID: PMC7083715 DOI: 10.1016/j.gendis.2019.04.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022] Open
Abstract
Extracellular vesicles (EVs) such as microvesicles (MIVs) play an important role in intercellular communications. MIVs are small membrane vesicles sized 100–1000 nm in diameter that are released by many types of cells, such as mesenchymal stem cells (MSCs), tumor cells and adipose-derived stem cells (ADSC). As EVs can carry out autocrine and paracrine functions by controlling multiple cell processes, it is conceivable that EVs can be used as delivery vehicles for treating several clinical conditions, such as to improve cardiac angiogenesis after myocardial infarction (MI). Here, we seek to investigate whether ADSC-derived MIVs contain microRNAs that regulate angiogenesis and affect cell migration of endothelial cells. We first characterized the ADSC-derived MIVs and found that the MIVs had a size range of 100–300 nm, and expressed the MIV marker protein Alix. We then analyzed the microRNAs in ADSCs and ADSC-derived MIVs and demonstrated that ADSC-derived MIVs selectively released a panel of microRNAs, several of which were related to angiogenesis, including two members of the let-7 family. Furthermore, we demonstrated that ADSC-derived MIVs promoted the cell migration and invasion of the HUVEC endothelial cells. The PKH26-labeled ADSC-derived MIVs were effectively uptaken into the cytoplasm of HUVEC cells. Collectively, our results demonstrate that the ADSC-derived MIVs can promote migration and invasion abilities of endothelial cells, suggesting pro-angiogenetic potential. Future studies should focus on investigating the roles and mechanisms through which ADSC-derived MIVs regulate angiogenesis.
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Affiliation(s)
- Bo Huang
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and The Affiliated Hospitals of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of Clinical Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Lin-Feng Huang
- Department of Clinical Laboratory Medicine, Jiangxi Maternal and Child Health Hospital, Nanchang, 330006, China
| | - Ling Zhao
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and The Affiliated Hospitals of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Zongyue Zeng
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and The Affiliated Hospitals of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Xi Wang
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and The Affiliated Hospitals of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Daigui Cao
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and The Affiliated Hospitals of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China.,Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of Orthopaedic Surgery, Chongqing General Hospital Affiliated with the University of Chinese Academy of Sciences, Chongqing, 400013, China
| | - Lijuan Yang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Zhenyu Ye
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Xian Chen
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of Clinical Laboratory Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266061, China
| | - Bin Liu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.,Department of Biology, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Xiaozhong Wang
- Department of Clinical Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
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Zolbin MM, Mamillapalli R, Nematian SE, Goetz TG, Taylor HS. Adipocyte alterations in endometriosis: reduced numbers of stem cells and microRNA induced alterations in adipocyte metabolic gene expression. Reprod Biol Endocrinol 2019; 17:36. [PMID: 30982470 PMCID: PMC6463663 DOI: 10.1186/s12958-019-0480-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/02/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Endometriosis is an estrogen dependent, inflammatory disorder occurring in 5-10% of reproductive-aged women. Women with endometriosis have a lower body mass index (BMI) and decreased body fat compared to those without the disease, yet few studies have focused on the metabolic abnormalities in adipose tissue in women with endometriosis. Previously, we identified microRNAs that are differentially expressed in endometriosis and altered in the serum of women with the disease. Here we explore the effect of endometriosis on fat tissue and identified a role for endometriosis-related microRNAs in fat metabolism and a reduction in adipocyte stem cell number. METHODS Primary adipocyte cells cultured from 20 patients with and without endometriosis were transfected with mimics and inhibitors of microRNAs 342-3p or Let 7b-5p to model the status of these microRNAs in endometriosis. RNA was extracted for gene expression analysis by qRT-PCR. PCNA expression was used as a marker of adipocyte proliferation. Endometriosis was induced experimentally in 9-week old female C57BL/6 mice and after 10 months fat tissue was harvested from both the subcutaneous (inguinal) and visceral (mesenteric) tissue. Adipose-derived mesenchymal stem cells in fat tissue were characterized in both endometriosis and non-endometriosis mice by FACS analysis. RESULTS Gene expression analysis showed that endometriosis altered the expression of Cebpa, Cebpb, Ppar-γ, leptin, adiponectin, IL-6, and HSL, which are involved in driving brown adipocyte differentiation, appetite, insulin sensitivity and fat metabolism. Each gene was regulated by an alteration in microRNA expression known to occur in endometriosis. Analysis of the stem cell content of adipose tissue in a mouse model of endometriosis demonstrated a reduced number of adipocyte stem cells. CONCLUSIONS We demonstrate that microRNAs Let-7b and miR-342-3p affected metabolic gene expression significantly in adipocytes of women with endometriosis. Similarly, there is a reduction in the adipose stem cell population in a mouse model of endometriosis. Taken together these data suggest that endometriosis alters BMI in part through an effect on adipocytes and fat metabolism.
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Affiliation(s)
- Masoumeh Majidi Zolbin
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar Street, New Haven, CT, 06520, USA
| | - Ramanaiah Mamillapalli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar Street, New Haven, CT, 06520, USA.
| | - Sepide E Nematian
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar Street, New Haven, CT, 06520, USA
| | - Teddy G Goetz
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar Street, New Haven, CT, 06520, USA
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar Street, New Haven, CT, 06520, USA
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Terzuoli E, Nannelli G, Giachetti A, Morbidelli L, Ziche M, Donnini S. Targeting endothelial-to-mesenchymal transition: the protective role of hydroxytyrosol sulfate metabolite. Eur J Nutr 2020; 59:517-27. [PMID: 30725211 DOI: 10.1007/s00394-019-01920-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 01/29/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Endothelial-to-mesenchymal transition (EndMT) plays an important role in pathogenesis of a number of inflammatory diseases. Hydroxytyrosol (HT) and, particularly, its major plasma metabolite HT-3O sulfate (HT-3Os) are known olive oil antioxidant and anti-inflammatory polyphenols which exert benefits against vascular diseases by improving endothelial function. However, to date the HT-3Os role in EndMT is not well known. METHODS To investigate the HT-3Os effects on EndMT in the inflamed endothelium, we used an in vitro model of endothelial dysfunction, challenging endothelial cells (EC), human umbilical EC (HUVEC) and human retinal EC (HREC) with Interleukin-1β (IL-1β), an inflammatory agent. HREC were used as a specific model to investigate HT-3Os effects on vascular retinal diseases. RESULTS We found that IL-1β treatment-induced EndMT phenotype in both cell models, also changing cell morphology. HT-3Os protected EC against IL-1β effects, recovering cell morphology and phenotype. Mechanistically, HT-3Os targeting fibroblast growth factor receptor 1 FGFR1 expression and let-7 miRNA, controlled transforming growth factor beta (TGF-β) signalling in EC, downregulating transcription factors expression (SNAI1 and ZEB2) and gene expression of late EndMT markers (FN1, VIM, NOTCH3, CNN1, MMP2 and MMP9). CONCLUSION These results demonstrate that HT-3Os blunts pathological EndMT in inflamed EC, maintaining high let-7 miRNA expression and preventing activation of TGF-β signalling.
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Haq S, Das S, Kim DH, Chandrasekaran AP, Hong SH, Kim KS, Ramakrishna S. The stability and oncogenic function of LIN28A are regulated by USP28. Biochim Biophys Acta Mol Basis Dis 2018; 1865:599-610. [PMID: 30543854 DOI: 10.1016/j.bbadis.2018.12.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 11/17/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022]
Abstract
RNA-binding protein LIN28A is often highly expressed in human malignant tumors and is involved in tumor metastasis and poor prognosis. Knowledge about post-translational regulatory mechanisms governing LIN28A protein stability and function is scarce. Here, we investigated the role of ubiquitination and deubiquitination on LIN28A protein stability and report that LIN28A protein undergoes ubiquitination. Ubiquitin-specific protease 28 (USP28), a deubiquitinating enzyme, interacts with and stabilizes LIN28A protein to extend its half-life. USP28, through its deubiquitinating activity, antagonizes LIN28A protein turnover by reversing its proteasomal degradation. Our study describes the consequential impacts of USP28-mediated stabilization of LIN28A protein on enhancing cancer cell viability, migration and ultimately augmenting LIN28A-mediated tumor progression. Overall, our data suggest that a synergistic, combinatorial approach of targeting LIN28A with USP28 would contribute to effective cancer therapeutics.
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Affiliation(s)
- Saba Haq
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, South Korea
| | - Soumyadip Das
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Dong-Ho Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | | | - Seok-Ho Hong
- Department of Internal Medicine, School of Medicine, Kangwon National University, Chuncheon, South Korea
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea; College of Medicine, Hanyang University, Seoul 04763, South Korea
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea; College of Medicine, Hanyang University, Seoul 04763, South Korea.
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43
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Wang G, Zheng X, Tang J, Niu Y, Dai Y, Duan H, Zheng Y. LIN28B/ let-7 axis mediates pulmonary inflammatory response induced by diesel exhaust particle exposure in mice. Toxicol Lett 2018; 299:1-10. [PMID: 30172002 DOI: 10.1016/j.toxlet.2018.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/22/2018] [Accepted: 08/28/2018] [Indexed: 11/29/2022]
Abstract
Exposure to diesel exhaust particle (DEP) is closely related to inflammatory response in respiratory system. To understand the underlying molecular mechanism by which DEP induces pulmonary inflammatory response, we conducted DEP exposure experiments in vivo and in vitro. In vivo, each mouse was exposed to DEP suspension (100 μg of DEP) or vehicle only once in single intra-tracheal instillation (IT) section, or was exposed to DEP suspension (12.5 μg or 50 μg of DEP) or vehicle 12 times in repeated IT section. DEP exposure induced significant pathological injuries with substantial neutrophils infiltration and the increased level of pro-inflammatory cytokine IL-6 in mouse lungs. Consistently, elevated IL6 mRNA level was also observed in DEP treatment group (100 μg/ml) in vitro. In addition, DEP exposure exerted the similar influence on the expression of let-7d and let-7g microRNAs in vivo and in vitro. To verify the possible role of LIN28B/let-7 axis in the regulation of IL6 expression following DEP exposure, we applied RNAi technology in vitro, and found increased IL6 mRNA expression was alleviated or neutralized in DEP exposure groups after LIN28B silencing or after let-7d or let-7g over-expression. Taken together, we conclude that LIN28B/let-7 axis might be involved in inflammatory response induced by DEP exposure.
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Affiliation(s)
- Guanglei Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
| | - Xiaomei Zheng
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
| | - Jinglong Tang
- School of Public Health, Qingdao University, 38 Dengzhou Road, Qingdao 266021, China.
| | - Yong Niu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
| | - Yufei Dai
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
| | - Huawei Duan
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
| | - Yuxin Zheng
- School of Public Health, Qingdao University, 38 Dengzhou Road, Qingdao 266021, China.
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44
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Strubberg AM, Veronese Paniagua DA, Zhao T, Dublin L, Pritchard T, Bayguinov PO, Fitzpatrick JAJ, Madison BB. The Zinc Finger Transcription Factor PLAGL2 Enhances Stem Cell Fate and Activates Expression of ASCL2 in Intestinal Epithelial Cells. Stem Cell Reports 2018; 11:410-424. [PMID: 30017821 PMCID: PMC6092695 DOI: 10.1016/j.stemcr.2018.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 01/02/2023] Open
Abstract
Intestinal epithelial stem cell (IESC) fate is promoted by two major transcriptional regulators, the TCF4/β-catenin complex and ASCL2, which drive expression of IESC-specific factors, including Lgr5, Ephb2, and Rnf43. Canonical Wnt signaling via TCF4/β-catenin directly transactivates Ascl2, which in turn auto-regulates its own expression. Conversely, Let-7 microRNAs antagonize the IESC lineage by repressing specific mRNA targets. Here, we identify the zinc finger transcription factor PLAGL2 as a Let-7 target that regulates IESC fate. PLAGL2 drives an IESC expression signature, activates Wnt gene expression, and enhances a TCF/LEF reporter in intestinal organoids. In parallel, via cell-autonomous mechanisms, PLAGL2 is required for lineage clonal expansion and directly enhances expression of ASCL2. PLAGL2 also supports enteroid growth and survival in the context of Wnt ligand depletion. PLAGL2 expression is strongly associated with an IESC signature in colorectal cancer and may be responsible for contributing to the aberrant activation of an immature phenotype.
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Affiliation(s)
- Ashlee M Strubberg
- Department of Medicine, Division of Gastroenterology, Washington University School of Medicine, 660 S. Euclid Avenue, Campus Box 8124, CSRB NT 923, Saint Louis, MO 63110, USA
| | - Daniel A Veronese Paniagua
- Department of Medicine, Division of Gastroenterology, Washington University School of Medicine, 660 S. Euclid Avenue, Campus Box 8124, CSRB NT 923, Saint Louis, MO 63110, USA
| | - Tingting Zhao
- Department of Breast Surgery, First Hospital of China Medical University, Shenyang 110001, China
| | - Leeran Dublin
- Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Thomas Pritchard
- Department of Medicine, Division of Gastroenterology, Washington University School of Medicine, 660 S. Euclid Avenue, Campus Box 8124, CSRB NT 923, Saint Louis, MO 63110, USA
| | - Peter O Bayguinov
- Washington University Center for Cellular Imaging, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - James A J Fitzpatrick
- Washington University Center for Cellular Imaging, Washington University School of Medicine, Saint Louis, MO 63110, USA; Departments of Cell Biology & Physiology and Neuroscience, Washington University School of Medicine, Saint Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63105, USA
| | - Blair B Madison
- Department of Medicine, Division of Gastroenterology, Washington University School of Medicine, 660 S. Euclid Avenue, Campus Box 8124, CSRB NT 923, Saint Louis, MO 63110, USA.
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45
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Wang BG, Jiang LY, Xu Q. A comprehensive evaluation for polymorphisms in let-7 family in cancer risk and prognosis: a system review and meta-analysis. Biosci Rep 2018; 38:BSR20180273. [PMID: 29717029 DOI: 10.1042/BSR20180273] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/20/2018] [Accepted: 04/30/2018] [Indexed: 12/17/2022] Open
Abstract
miRNA polymorphisms had potential to be biomarkers for cancer susceptibility and prognosis. The mature miRNA-let-7 family was considered as the most important miRNA for the cancer incidence and progression. Recently, the promising let-7 miRNAs were reported to be associated with various cancers, but the results were inconsistent. We performed a first-reported systematic review with a meta-analysis for the association of let-7 family single nucleotide polymorphisms (SNPs) with cancer risk/prognosis. Ten studies were included with a total of 3878 cancer cases and 4725 controls for the risk study and 1665 cancer patients for the prognosis study in this meta-analysis. In the risk study, the let-7i rs10877887 and let-7a-1/let-7f-1/let-7d rs13293512 were shown no significant association for the overall cancer risk. In the stratified analysis, the rs10877887 variant genotype was significantly associated with a decreased cancer risk in head and neck cancer (TC compared with TT: P=0.017; odds ratio (OR) = 0.81; TC + CC compared with TT: P=0.020; OR = 0.82). In the prognosis study, the let-7i rs10877887 SNP was shown to be associated with a higher risk for cancer prognosis in the dominate model (P=0.004; hazard ratio (HR) = 1.32). The other two SNPs (let-7a-1 rs10739971 and let-7a-2 rs629367) were not found to be associated with cancer survival. None of the let-7 family polymorphisms had potential to be biomarkers for cancer susceptibility but let-7i rs10877887 SNP had potential to be predicting markers for cancer prognosis. In the future, large-sample studies are still needed to verify our findings.
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46
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Liu Q, Guo X, Que S, Yang X, Fan H, Liu M, Li X, Tang H. LncRNA RSU1P2 contributes to tumorigenesis by acting as a ceRNA against let-7a in cervical cancer cells. Oncotarget 2018; 8:43768-43781. [PMID: 27487126 PMCID: PMC5546439 DOI: 10.18632/oncotarget.10844] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 06/17/2016] [Indexed: 12/15/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) can regulate gene expression at different levels and are widely participate in various physiological and pathological processes. Emerging evidences suggests that a number of differentially expressed lncRNAs are involved in tumorigenesis. However, the function and expression regulation of a vast majority of these unique RNAs is little known. Here, we found that the lncRNA Ras suppressor protein 1 pseudogene 2 (RSU1P2) is upregulateded in cervical cancer tissues and has a tumour-promoting role. We revealed that RSU1P2 acts as a competitive endogenous RNA (ceRNA) through regulating the expression of IGF1R, N-myc and EphA4. The mechanism of this regulation is via competition for the shared microRNA let-7a. This competition promotes the malignant phenotype of cervical carcinoma cells. The transcription factor N-myc forms a positive feedback loop with RSU1P2 by in turn activating its expression, thereby enhancing its oncogenic capacity. Hence, cancer-selective targeting of RSU1P2 could have strong benefits.
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Affiliation(s)
- Qian Liu
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xu Guo
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Shengshun Que
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xi Yang
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Hongxia Fan
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Min Liu
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xin Li
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Hua Tang
- Tianjin Life Science Research Center, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
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Xiong H, Zhao W, Wang J, Seifer BJ, Ye C, Chen Y, Jia Y, Chen C, Shen J, Wang L, Sui X, Zhou J. Oncogenic mechanisms of Lin28 in breast cancer: new functions and therapeutic opportunities. Oncotarget 2018; 8:25721-25735. [PMID: 28147339 PMCID: PMC5421965 DOI: 10.18632/oncotarget.14891] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/11/2017] [Indexed: 12/25/2022] Open
Abstract
The RNA binding protein Lin28 is best known for the critical role in cell development, recent researches also have implied its oncogenic function in various human cancers, including breast cancer. Specifically, aberrant Lin28 participates in multiple pathological processes, such as proliferation, metastasis, radiotherapy and chemotherapy resistance, metabolism, immunity and inflammation as well as stemness. In this review, we summarize the let-7-dependent and let-7-independent mechanism regulated by Lin28, focusing on its relation with tumor hallmarks in breast cancer, and subsequently discuss our present knowledge of Lin28 to develop a molecular-based therapeutic strategy against breast cancer.
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Affiliation(s)
- Hanchu Xiong
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wenhe Zhao
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Ji Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | | | - Chenyang Ye
- Cancer Institute (Key Laboratory of Cancer Prevention & Intervention, National Ministry of Education), Second Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yongxia Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yunlu Jia
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Cong Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jianguo Shen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Linbo Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Xinbing Sui
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China.,Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
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48
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Ding Y, Wang ZC, Zheng Y, Hu Z, Li Y, Luo DF, Wang SY. C-Myc functions as a competing endogenous RNA in acute promyelocytic leukemia. Oncotarget 2018; 7:56422-56430. [PMID: 27486764 PMCID: PMC5302924 DOI: 10.18632/oncotarget.10896] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/09/2016] [Indexed: 11/25/2022] Open
Abstract
Recent reports have described a new post-transcriptional regulation that RNA transcripts can crosstalk with each other by competing for their common microRNAs. These RNA transcripts termed competing endogenous RNAs (ceRNAs) regulate the distribution of miRNAs on their targets. One corollary from ceRNA interaction is that chromosomal translocation in acute promyelocytic leukemia (APL) would perturb ceRNA regulation due to altered expression of 3'UTRs. In our study, we demonstrate that expression of PML/RARα, the APL-associated fusion oncogene is repressed by c-Myc mRNA transcript independent of protein-coding function but dependent upon microRNA. Attenuation of c-Myc transcript results in PML/RARα-degraded cellular phenotypes in APL cells, but these Myc reduction-associated cell phenotypes are sufficient to abrogate in a microRNA dependent manner. We also show that let-7 microRNA family members promote differentiation of All-Trans-Retinoic Acid (ATRA)-induced NB4 cells and their activities are affected by expression levels of both c-Myc and PML/RARα through altering miRNA targets. These results indicate that c-Myc mRNA represses PML/RARα expression via altering the distribution of let-7 miRNAs on their targets. Our findings reveal a previously unrecognized role of c-Myc as a potential ceRNA for PML/RARα in APL.
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Affiliation(s)
- Ye Ding
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China
| | - Ze-Chuan Wang
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China
| | - Yi Zheng
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China
| | - Zheng Hu
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China
| | - Yang Li
- Department of Hematology, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, P.R. China
| | - Dong-Feng Luo
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China
| | - Shao-Yuan Wang
- Union Clinical Medical College, Fujian Medical University, Fuzhou, P.R. China.,Department of Hematology, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, P.R. China
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49
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Karmakar S, Kaushik G, Nimmakayala R, Rachagani S, Ponnusamy MP, Batra SK. MicroRNA regulation of K-Ras in pancreatic cancer and opportunities for therapeutic intervention. Semin Cancer Biol 2017; 54:63-71. [PMID: 29199014 DOI: 10.1016/j.semcancer.2017.11.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/28/2017] [Accepted: 11/28/2017] [Indexed: 01/17/2023]
Abstract
The Ras family of GTPases is involved in cell proliferation, cell survival, and angiogenesis. It is upregulated in several cancers, including pancreatic cancer (PC) and leads to uncontrolled growth and aggressiveness. PC is well known to be a lethal disease with poor prognosis, plagued by limited therapeutic modalities. MicroRNAs (miRNAs), which are short non-coding RNA molecules, have recently emerged as regulators of signaling networks and have shown potential to target pathway components for therapeutic use in several malignancies. K-Ras mutations are widespread in PC cases (90%), with mutations detectable as early as pancreatic intraepithelial neoplasias and in later metastatic stages alike; therefore, these mutations in K-Ras are obvious drivers and potential targets for PC therapy. Several K-Ras targeting miRNAs have lately been discovered, and many of them have shown promise in combating pancreatic tumor growth in vitro and in mouse models. However, the field of miRNA therapy is still in its infancy, and miRNA mimics or anti-miRNA oligonucleotides that target Ras pathway have thus far not been evaluated in PC patients. In this review, we summarize the role of several miRNAs that regulate oncogenic K-Ras signaling in PC, with their prospective roles as therapeutic agents for targeting K-Ras pathway.
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Affiliation(s)
- Saswati Karmakar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Garima Kaushik
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ramakrishna Nimmakayala
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases and Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases and Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
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50
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Xiao G, Li X, Li G, Zhang B, Xu C, Qin S, Du N, Wang J, Tang SC, Zhang J, Ren H, Chen K, Sun X. MiR-129 blocks estrogen induction of NOTCH signaling activity in breast cancer stem-like cells. Oncotarget 2017; 8:103261-103273. [PMID: 29262559 PMCID: PMC5732725 DOI: 10.18632/oncotarget.21143] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 08/08/2017] [Indexed: 01/01/2023] Open
Abstract
Stem-like cells in tumor group featured the major role in the chemotherapy resistance of breast cancer, and the reduction of stem-like cells helped to perish the tumor when receiving chemotherapy. Smaller stem cells number indicated better therapeutic effect in vitro and in clinics, but how did miR-129 and Notch signaling function in breast cancer stem-like cells (BrCSCs) were unclear yet. Through using sphere forming assay and FACS sorting, we found that miR-129 decreased the proportion of stem-like cells in breast cancer cells. Results further indicated that miR-129 degraded the Estrogen Receptor 1 (ESR1) mRNA through a post-translational manner and contributed to the decline of stem-like cells number, preventing tumor regeneration. Cyclin d1 and DICER 1 were proved to promote Let-7 maturation, and in present study, we proved that miR-129 exhibited inhibition on ESR1 and halted the cyclin d1/DICER 1 sustaining of Let-7, which consequently released the Let-7 degradation of NUMB. The restoration of suppressive NUMB by upregulating miR-129 resulted in NOTCH signaling inhibition. In conclusion, we demonstrated the negative regulation of miR-129 on NOTCH signaling activation in BrCSCs' renewal, which was achieved via continuous suppression on cyclin d1/DICER1 sustaining of Let-7 level, and eventually rescued the targeted inhibition of NUMB. The miR-129/ESR1 signaling played pivotal role in controlling DICER1/Let-7/NOTCH cascade via cyclin d1, revealing the novel mechanism of dual Let-7 in non-coding genes network.
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Affiliation(s)
- Guodong Xiao
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Xiang Li
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Gang Li
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Boxiang Zhang
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Chongwen Xu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Sida Qin
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Ning Du
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Jichang Wang
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi’an 710061, China
| | - Shou-Ching Tang
- Breast Cancer Program and Interdisciplinary Translational Research Team, Georgia Regents University Cancer Center, Augusta, Georgia 30912, United States
- Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Jing Zhang
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Hong Ren
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Ke Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xin Sun
- Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
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