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Gao W, Zhou J, Morshedi M. MicroRNA-34 and gastrointestinal cancers: a player with big functions. Cancer Cell Int 2024; 24:163. [PMID: 38725047 PMCID: PMC11084024 DOI: 10.1186/s12935-024-03338-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
It is commonly assumed that gastrointestinal cancer is the most common form of cancer across the globe and is the leading contributor to cancer-related death. The intricate mechanisms underlying the growth of GI cancers have been identified. It is worth mentioning that both non-coding RNAs (ncRNAs) and certain types of RNA, such as circular RNAs (circRNAs), long non-coding RNAs (lncRNAs), and microRNAs (miRNAs), can have considerable impact on the development of gastrointestinal (GI) cancers. As a tumour suppressor, in the group of short non-coding regulatory RNAs is miR-34a. miR-34a silences multiple proto-oncogenes at the post-transcriptional stage by targeting them, which inhibits all physiologically relevant cell proliferation pathways. However, it has been discovered that deregulation of miR-34a plays important roles in the growth of tumors and the development of cancer, including invasion, metastasis, and the tumor-associated epithelial-mesenchymal transition (EMT). Further understanding of miR-34a's molecular pathways in cancer is also necessary for the development of precise diagnoses and effective treatments. We outlined the most recent research on miR-34a functions in GI cancers in this review. Additionally, we emphasize the significance of exosomal miR-34 in gastrointestinal cancers.
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Affiliation(s)
- Wei Gao
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, The First Hospital, China Medical University, Shenyang, 110001, China
| | - Jianping Zhou
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, The First Hospital, China Medical University, Shenyang, 110001, China.
| | - Mohammadamin Morshedi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Hua K, Wu C, Lin C, Chen C. E2F1 promotes cell migration in hepatocellular carcinoma via FNDC3B. FEBS Open Bio 2024; 14:687-694. [PMID: 38403291 PMCID: PMC10988749 DOI: 10.1002/2211-5463.13783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 01/23/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024] Open
Abstract
FNDC3B (fibronectin type III domain containing 3B) is highly expressed in hepatocellular carcinoma (HCC) and other cancer types, and fusion genes involving FNDC3B have been identified in HCC and leukemia. Growing evidence suggests the significance of FNDC3B in tumorigenesis, particularly in cell migration and tumor metastasis. However, its regulatory mechanisms remain elusive. In this study, we employed bioinformatic, gene regulation, and protein-DNA interaction screening to investigate the transcription factors (TFs) involved in regulating FNDC3B. Initially, 338 candidate TFs were selected based on previous chromatin immunoprecipitation (ChIP)-seq experiments available in public domain databases. Through TF knockdown screening and ChIP coupled with Droplet Digital PCR assays, we identified that E2F1 (E2F transcription factor 1) is crucial for the activation of FNDC3B. Overexpression or knockdown of E2F1 significantly impacts the expression of FNDC3B. In conclusion, our study elucidated the mechanistic link between FNDC3B and E2F1. These findings contribute to a better understanding of FNDC3B in tumorigenesis and provide insights into potential therapeutic targets for cancer treatment.
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Affiliation(s)
- Kate Hua
- Cancer Progression Research CenterNational Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chen‐Tang Wu
- Cancer Progression Research CenterNational Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chin‐Hui Lin
- Cancer Progression Research CenterNational Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chian‐Feng Chen
- Cancer Progression Research CenterNational Yang Ming Chiao Tung UniversityTaipeiTaiwan
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3
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Wei QY, Jin F, Wang ZY, Li BJ, Cao WB, Sun ZY, Mo SJ. MicroRNAs: A novel signature in the metastasis of esophageal squamous cell carcinoma. World J Gastroenterol 2024; 30:1497-1523. [PMID: 38617454 PMCID: PMC11008420 DOI: 10.3748/wjg.v30.i11.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/12/2024] [Accepted: 03/01/2024] [Indexed: 03/21/2024] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a malignant epithelial tumor, characterized by squamous cell differentiation, it is the sixth leading cause of cancer-related deaths globally. The increased mortality rate of ESCC patients is predominantly due to the advanced stage of the disease when discovered, coupled with higher risk of metastasis, which is an exceedingly malignant characteristic of cancer, frequently leading to a high mortality rate. Unfortunately, there is currently no specific and effective marker to predict and treat metastasis in ESCC. MicroRNAs (miRNAs) are a class of small non-coding RNA molecules, approximately 22 nucleotides in length. miRNAs are vital in modulating gene expression and serve pivotal regulatory roles in the occurrence, progression, and prognosis of cancer. Here, we have examined the literature to highlight the intimate correlations between miRNAs and ESCC metastasis, and show that ESCC metastasis is predominantly regulated or regulated by genetic and epigenetic factors. This review proposes a potential role for miRNAs as diagnostic and therapeutic biomarkers for metastasis in ESCC metastasis, with the ultimate aim of reducing the mortality rate among patients with ESCC.
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Affiliation(s)
- Qi-Ying Wei
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Feng Jin
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Zhong-Yu Wang
- Department of Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Bing-Jie Li
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Wen-Bo Cao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Zhi-Yan Sun
- Division of Special Service, Department of Basic Oncology, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Sai-Jun Mo
- Department of Basic Science of Oncology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
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Li C, Ding L, Wang X, Shu P, Shi X, Zheng Z, Liu J, Zhu J. A RBM47 and IGF2BP1 mediated circular FNDC3B-FNDC3B mRNA imbalance is involved in the malignant processes of osteosarcoma. Cancer Cell Int 2023; 23:334. [PMID: 38129874 PMCID: PMC10740216 DOI: 10.1186/s12935-023-03175-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are a class of noncoding RNAs that are involved in the progression of many human cancers. The precise gene locus and the roles of circular RNA from Fibronectin type III domain containing 3B (FNDC3B) in OS and its mechanisms of action have not been fully explored. MATERIALS AND METHODS qRT-qPCR assay was used to determine gene expressions. CCK8 Assay, EdU assay, wound-healing assay, transwell invasion assay and in vivo xenograft assay were used to perform functional investigations. RNA-FISH, immunofluorescence, RIP assay, RNA stability analysis were applied in mechanistic studies. RESULTS We found that circFNDC3B downregulated and FNDC3B mRNA upregulated in OS, and might be potential biomarkers for indicating disease progression and prognosis of OS patients. CircFNDC3B acted as a tumor suppressor gene to restrain OS progression and FNDC3B functioned as an oncogene to promote OS progression in vitro and in vivo. RNA binding protein RNA binding motif protein 47 (RBM47) could bind to the flanking introns of circFNDC3B to facilitate the generation of circFNDC3B, resulting in the reduction of FNDC3B mRNA and the circFNDC3B-FNDC3B mRNA imbalance. CircFNDC3B also inhibited FNDC3B mRNA expression by reducing its stability via competitively binding to Insulin-like growth-factor-2 mRNA binding protein (IGF2BP1). CONCLUSION This study demonstrated that RBM47 and IGF2BP1 mediated circular FNDC3B/FNDC3B mRNA imbalance was involved in the malignant processes of OS.
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Affiliation(s)
- Congya Li
- Precision Medicine Laboratory, Beilun People's Hospital, Beilun Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, No.1288 of Lushan Road, Beilun District, Ningbo, 315800, Zhejiang, China
- Health Science Center, Ningbo University, Ningbo, 315021, Zhejiang, China
| | - Linchao Ding
- Department of Scientific Research, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, 365 Renmin East Road, Jinhua, 321000, Zhejiang, China
| | - Xuyao Wang
- Precision Medicine Laboratory, Beilun People's Hospital, Beilun Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, No.1288 of Lushan Road, Beilun District, Ningbo, 315800, Zhejiang, China
| | - Peng Shu
- Precision Medicine Laboratory, Beilun People's Hospital, Beilun Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, No.1288 of Lushan Road, Beilun District, Ningbo, 315800, Zhejiang, China
| | - Xuchao Shi
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Zhijian Zheng
- Department of Medical Oncology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, 321000, China
| | - Jian Liu
- Precision Medicine Laboratory, Beilun People's Hospital, Beilun Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, No.1288 of Lushan Road, Beilun District, Ningbo, 315800, Zhejiang, China.
| | - Junlan Zhu
- Precision Medicine Laboratory, Beilun People's Hospital, Beilun Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, No.1288 of Lushan Road, Beilun District, Ningbo, 315800, Zhejiang, China.
- Health Science Center, Ningbo University, Ningbo, 315021, Zhejiang, China.
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Fu J, Imani S, Wu MY, Wu RC. MicroRNA-34 Family in Cancers: Role, Mechanism, and Therapeutic Potential. Cancers (Basel) 2023; 15:4723. [PMID: 37835417 PMCID: PMC10571940 DOI: 10.3390/cancers15194723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
MicroRNA (miRNA) are small noncoding RNAs that play vital roles in post-transcriptional gene regulation by inhibiting mRNA translation or promoting mRNA degradation. The dysregulation of miRNA has been implicated in numerous human diseases, including cancers. miR-34 family members (miR-34s), including miR-34a, miR-34b, and miR-34c, have emerged as the most extensively studied tumor-suppressive miRNAs. In this comprehensive review, we aim to provide an overview of the major signaling pathways and gene networks regulated by miR-34s in various cancers and highlight the critical tumor suppressor role of miR-34s. Furthermore, we will discuss the potential of using miR-34 mimics as a novel therapeutic approach against cancer, while also addressing the challenges associated with their development and delivery. It is anticipated that gaining a deeper understanding of the functions and mechanisms of miR-34s in cancer will greatly contribute to the development of effective miR-34-based cancer therapeutics.
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Affiliation(s)
- Junjiang Fu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Southwest Medical University, Luzhou 646000, China
| | - Saber Imani
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310022, China
| | - Mei-Yi Wu
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland Baltimore, Baltimore, MD 21201, USA
| | - Ray-Chang Wu
- Department of Biochemistry and Molecular Medicine, The George Washington University, Washington, DC 20052, USA
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Hu J, Ji Y, Miao T, Zheng S, Cui X, Hu J, Yang L, Li F. HPV 16 E6 promotes growth and metastasis of esophageal squamous cell carcinoma cells in vitro. Mol Biol Rep 2023; 50:1181-1190. [PMID: 36435921 DOI: 10.1007/s11033-022-07952-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 09/16/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of the most lethal malignancies worldwide. Increasing evidence suggests that human papillomavirus (HPV) infection may be associated with the etiology of ESCC. However, the precise role of HPV in ESCC remains unclear. METHODS AND RESULTS Proliferation and apoptosis of ESCC cells upon infection with HPV16 E6 were detected using CCK-8 assays and Western blot analyses. The migration rate was measured with a wound healing assay, and a Transwell Matrigel invasion assay was used to detect the invasive ability. RT-qPCR was performed to detect the expression of E6AP, p53, and miR-34a. The proliferation rates were significantly higher in HPV16E6-transfected cell groups compared with the negative control groups. Bax protein expression was downregulated in HPV16E6-treated groups compared to the controls. The wound healing and Transwell Matrigel invasion assays indicated that HPV16 E6 infection could increase ESCC cell migration and invasion. Furthermore, E6AP, p53 and miR-34a expression were decreased in HPV16 E6-transfected cell lines. CONCLUSION Our results not only provide evidence that HPV16 E6 promotes cell proliferation, migration, and invasion in ESCC, but also suggests a correlation between HPV infection and E6AP, p53 and miR-34a expression. Consequently, HPV16 E6 may play an important role in ESCC development.
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Affiliation(s)
- JiaoJiao Hu
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
| | - Yu Ji
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
- Pathology Department, Jiangmen Maternity and Child Health Care Hospital, Guangdong, 529000, Jiangmen, People's Republic of China
| | - TingTing Miao
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
| | - ShiYao Zheng
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
- Department of Pathology, The First Affiliated Hospital of Shihezi University School of Medicine, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, China
| | - XiaoBin Cui
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
- Department of Pathology, The First Affiliated Hospital of Shihezi University School of Medicine, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, China
| | - JianMing Hu
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China
- Department of Pathology, The First Affiliated Hospital of Shihezi University School of Medicine, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, China
| | - Lan Yang
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China.
- Department of Pathology, The First Affiliated Hospital of Shihezi University School of Medicine, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, China.
| | - Feng Li
- Department of Pathology, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, People's Republic of China.
- Department of Pathology, The First Affiliated Hospital of Shihezi University School of Medicine, Shihezi University School of Medicine, 832000, Shihezi, Xinjiang, China.
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, 100020, Beijing, People's Republic of China.
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Study of matrix metalloproteinase activity in patients with autoimmune thyroiditis. UKRAINIAN BIOCHEMICAL JOURNAL 2022. [DOI: 10.15407/ubj94.02.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
One of the most important pathogenetic mechanisms of autoimmune thyroiditis (AIT) is the violation of immunological tolerance and the development of the autoimmune process, the markers of which are various biologically active substances, in particular, matrix metalloproteinases (MMP) of the extracellular matrix (ECM). MMPs play a crucial role in the development of pathological processes in these diseases, contributing to matrix degradation due to imbalance between the activity of enzymes and their inhibitors. The aim of the work was to study the activity of key metalloproteinases and the level of α2-macroglobulin in patients with autoimmune thyroiditis. The diagnosis of AIT was established based on the study of data on anamnesis, thyroid status, the results of ultrasound of TG, and the presence of antibodies to the thyroid-stimulating hormone receptor (TSH) in blood plasma. Patients were enrolled in 2 groups: group 1 – 74 patients with a manifest form of the disease; group 2 – 96 patients with a subclinical form of the disease. The study of matrix metalloprotein activity in the examined patients showed a statistically significant (P = 0.015) increase in MMP-3 and MMP-7 activity in patients with AIT compared to the corresponding parameters in persons of the control group. Thus, levels of MMP-3 and 7 were in the group of patients, respectively 56 (51.0; 59.0) and 4.6 (4.3; 5.2) ng/ml, in control 23.0 (16.0; 26.0) and 3.6 (3.4; 4.1) ng/ml, respectively.
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Ryspayeva D, Halytskiy V, Kobyliak N, Dosenko I, Fedosov A, Inomistova M, Drevytska T, Gurianov V, Sulaieva O. Response to neoadjuvant chemotherapy in breast cancer: do microRNAs matter? Discov Oncol 2022; 13:43. [PMID: 35668332 PMCID: PMC9170858 DOI: 10.1007/s12672-022-00507-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/21/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Conventionally, breast cancer (BC) prognosis and prediction of response to therapy are based on TNM staging, histological and molecular subtype, as well as genetic alterations. The role of various epigenetic factors has been elucidated in carcinogenesis. However, it is still unknown to what extent miRNAs affect the response to neoadjuvant chemotherapy (NACT). This pilot study is focused on evaluating the role of miR-34a, miR-124a, miR-155, miR-137 and miR-373 in response to NACT. METHODS That was a prospective study enrolling 34 patients with histologically confirmed BC of II-III stages. The median age of patients was 53 (47-59.8) years old, 70.6% of whom were HR-positive. MiRs levels were measured in the primary tumor before and after NACT. The response to therapy was assessed after surgery using the Miller-Payne scoring system. To establish the role of miRs in modulating response to NACT the Cox model was applied for analysis. RESULTS BC demonstrated a great variability of miRs expression before and after NACT with no strong links to tumor stage and molecular subtype. Only miR-124a and miR-373 demonstrated differential expression between malignant and normal breast tissues before and after therapy though these distinctions did not impact response to NACT. Besides miR-124a and miR-137 levels after NACT were found to be dependent on HR status. While miR-124a levels increased (p = 0.021) in the tumor tissue, the expression of miR-137 was downregulated (p = 0.041) after NACT in HR positive BC. CONCLUSIONS The study revealed differences in miR-124a and miR-373 expression after NACT in primary BC tissues. Although miRs levels did not impact the response to NACT, we found miR-124a and miR-137 levels to be related to hormonal sensitivity of BC.
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Affiliation(s)
- Dinara Ryspayeva
- Department of Oncohematology and Adjuvant Treatment Methods, National Cancer Institute, Lomonosova str, 33/43, Kyiv, 03022, Ukraine.
| | - Volodymyr Halytskiy
- Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Kyiv, 01054, Ukraine
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, 03143, Ukraine
| | - Nazarii Kobyliak
- Endocrinology Department, Bogomolets National Medical University, Kyiv, 01601, Ukraine.
- Medical Laboratory CSD, Kyiv, 03148, Ukraine.
| | - Iryna Dosenko
- Department of Oncohematology and Adjuvant Treatment Methods, National Cancer Institute, Lomonosova str, 33/43, Kyiv, 03022, Ukraine
| | - Artem Fedosov
- Endocrinology Department, Bogomolets National Medical University, Kyiv, 01601, Ukraine
| | - Mariia Inomistova
- Department of Oncohematology and Adjuvant Treatment Methods, National Cancer Institute, Lomonosova str, 33/43, Kyiv, 03022, Ukraine
| | - Tetyana Drevytska
- Bogomolets Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, 01024, Ukraine
| | - Vitalyi Gurianov
- Endocrinology Department, Bogomolets National Medical University, Kyiv, 01601, Ukraine
| | - Oksana Sulaieva
- Medical Laboratory CSD, Kyiv, 03148, Ukraine
- Sumy State University, Sumy, Ukraine
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Engineering tumor-derived small extra cellular vesicles to encapsulate miR-34a, effectively inhibits 4T1 cell proliferation, migration, and gene expression. Med Oncol 2022; 39:93. [PMID: 35568745 DOI: 10.1007/s12032-022-01685-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/16/2022] [Indexed: 10/18/2022]
Abstract
Tumor cells produce small extra cellular vesicles-(tsEV) massively, which act as cancer messengers that may also have anti-cancer effects. Based on this knowledge, we hypothesized that we can benefit from 4T1-derived sEVs to amplify the anti-cancer effects of miR-34a-replacement therapy in 4T1 cells. Supernatant of 4T1 cultured cells gathered after 24 h of exposure to serum-free media. tsEVs purified by commercial kit and characterized by transmission and scanning electron microscopy, dynamic light scattering, and bicinchoninic acid assay. Modified CaCl2 method applied for miR-34a loading in tsEV (tsEV-miR) and loading confirmation evaluated by the relative expression of miR-34a. MTT, annexin V/PI, cell cycle, scratch test, and real-time PCR were performed for proliferation, apoptosis, invasion, and relative expression of miR-34a target genes after treatment with tsEV/tsEV-miR, respectively. The results indicated that tsEV-miR provides a time-dose-dependent anti-proliferative effect versus tsEV/control group. tsEV-miR could induce apoptosis and arrest the cell cycle at G0/G1 phase, and moreover, it effectively halted the invasion capability of 4T1 cells. Treatment with tsEV-miR down-regulated miR-34a target genes, including B-cell lymphoma-2, vascular endothelial growth factor and its receptor, matrix metalloproteinase-2 and -9, and interleukin-6. Engineered tsEVs can affect different aspects of 4T1 cancer cells including proliferation, apoptosis, cell cycle, migration, and cancer-related gene expression profile. In this regard, tsEV could be considered a proper vehicle for miR-34a replacement therapy and could exacerbate its anti-cancer effects in triple-negative breast cancer. Indeed, TNBC can be targeted by multiple angles by its weapon.
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10
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Simbulan-Rosenthal CM, Haribabu Y, Vakili S, Kuo LW, Clark H, Dougherty R, Alobaidi R, Carney B, Sykora P, Rosenthal DS. Employing CRISPR-Cas9 to Generate CD133 Synthetic Lethal Melanoma Stem Cells. Int J Mol Sci 2022; 23:2333. [PMID: 35216449 PMCID: PMC8877091 DOI: 10.3390/ijms23042333] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 12/19/2022] Open
Abstract
Malignant melanoma is a lethal skin cancer containing melanoma-initiating cells (MIC) implicated in tumorigenesis, invasion, and drug resistance, and is characterized by the elevated expression of stem cell markers, including CD133. The siRNA knockdown of CD133 enhances apoptosis induced by the MEK inhibitor trametinib in melanoma cells. This study investigates the underlying mechanisms of CD133's anti-apoptotic activity in patient-derived BAKP and POT cells, harboring difficult-to-treat NRASQ61K and NRASQ61R drivers, after CRISPR-Cas9 CD133 knockout or Dox-inducible expression of CD133. MACS-sorted CD133(+) BAKP cells were conditionally reprogrammed to derive BAKR cells with sustained CD133 expression and MIC features. Compared to BAKP, CD133(+) BAKR exhibit increased cell survival and reduced apoptosis in response to trametinib or the chemotherapeutic dacarbazine (DTIC). CRISPR-Cas9-mediated CD133 knockout in BAKR cells (BAKR-KO) re-sensitized cells to trametinib. CD133 knockout in BAKP and POT cells increased trametinib-induced apoptosis by reducing anti-apoptotic BCL-xL, p-AKT, and p-BAD and increasing pro-apoptotic BAX. Conversely, Dox-induced CD133 expression diminished apoptosis in both trametinib-treated cell lines, coincident with elevated p-AKT, p-BAD, BCL-2, and BCL-xL and decreased activation of BAX and caspases-3 and -9. AKT1/2 siRNA knockdown or inhibition of BCL-2 family members with navitoclax (ABT-263) in BAKP-KO cells further enhanced caspase-mediated apoptotic PARP cleavage. CD133 may therefore activate a survival pathway where (1) increased AKT phosphorylation and activation induces (2) BAD phosphorylation and inactivation, (3) decreases BAX activation, and (4) reduces caspases-3 and -9 activity and caspase-mediated PARP cleavage, leading to apoptosis suppression and drug resistance in melanoma. Targeting nodes of the CD133, AKT, or BCL-2 survival pathways with trametinib highlights the potential for combination therapies for NRAS-mutant melanoma stem cells for the development of more effective treatments for patients with high-risk melanoma.
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Affiliation(s)
- Cynthia M. Simbulan-Rosenthal
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Yogameenakshi Haribabu
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Sahar Vakili
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Li-Wei Kuo
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Havens Clark
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Ryan Dougherty
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Ryyan Alobaidi
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
| | - Bonnie Carney
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
- Firefighters’ Burn and Surgical Laboratory, MedStar Health Research Institute, Washington, DC 20010, USA
| | - Peter Sykora
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
- Amelia Technologies, LLC, 1121 5th St. NW, Washington, DC 20001, USA
| | - Dean S. Rosenthal
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20057, USA; (C.M.S.-R.); (Y.H.); (S.V.); (L.-W.K.); (H.C.); (R.D.); (R.A.); (B.C.); (P.S.)
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11
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Yue M, Liu Y, Zuo T, Jiang Y, Pan J, Zhang S, Shen X. Circ_0006948 Contributes to Cell Growth, Migration, Invasion and Epithelial-Mesenchymal Transition in Esophageal Carcinoma. Dig Dis Sci 2022; 67:492-503. [PMID: 33630215 DOI: 10.1007/s10620-021-06894-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/03/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) can act as promoters or inhibitors in cancer progression. Has_circ_0006948 (circ_0006948) was reported to aggravate the malignant behaviors of esophageal carcinoma (EC). AIMS This study focused on investigating the molecular mechanism of circ_0006948 in EC progression. METHODS The quantitative real-time polymerase chain reaction was performed to detect the expression of circ_0006948, microRNA-4262 (miR-4262) and fibronectin type III domain containing 3B (FNDC3B). Cell growth analysis was conducted by Cell Counting Kit-8 and colony formation assays. Cell migration and invasion were assessed by transwell assay. Epithelial-mesenchymal transition (EMT)-associated proteins and FNDC3B protein expression were assayed using western blot. Dual-luciferase reporter and RNA pull-down assays were performed to validate the target combination. Xenograft tumor assay was used for investigating the role of circ_0006948 in vivo. RESULTS Circ_0006948 was upregulated in EC tissues and cells. Downregulating the expression of circ_0006948 or FNDC3B repressed cell growth, migration, invasion and EMT in EC cells. Target analysis indicated that miR-4262 was a target for circ_0006948 and FNDC3B was a downstream gene for miR-4262. Moreover, circ_0006948 could affect the expression of FNDC3B via sponging miR-4262. The effects of si-circ_0006948#1 on EC cells were partly restored by miR-4262 inhibition or FNDC3B overexpression. In addition, circ_0006948 also facilitated EC tumorigenesis in vivo by targeting the miR-4262/FNDC3B axis. CONCLUSION Taken together, circ_0006948 functioned as an oncogenic factor in EC by the miR-4262-mediated FNDC3B expression regulation.
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Affiliation(s)
- Meng Yue
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong First Medical University, No.105 Jiefang Road, Lixia District, Jinan, 250013, Shandong Province, China.
| | - Yanxia Liu
- Department of Oncology, Shengli Oil Central Hospital, Dongying City, Shandong Province, China
| | - Taiyang Zuo
- Department of Oncology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China
| | - Yakun Jiang
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong First Medical University, No.105 Jiefang Road, Lixia District, Jinan, 250013, Shandong Province, China
| | - Jianmei Pan
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong First Medical University, No.105 Jiefang Road, Lixia District, Jinan, 250013, Shandong Province, China
| | - Shuhong Zhang
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong First Medical University, No.105 Jiefang Road, Lixia District, Jinan, 250013, Shandong Province, China
| | - Xingjie Shen
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong First Medical University, No.105 Jiefang Road, Lixia District, Jinan, 250013, Shandong Province, China
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12
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Wang C, Jia Q, Guo X, Li K, Chen W, Shen Q, Xu C, Fu Y. microRNA-34 Family: From Mechanism to Potential Applications. Int J Biochem Cell Biol 2022; 144:106168. [DOI: 10.1016/j.biocel.2022.106168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/04/2022] [Accepted: 01/21/2022] [Indexed: 02/06/2023]
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13
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Cui D, Cheung ALM. Roles of microRNAs in tumorigenesis and metastasis of esophageal squamous cell carcinoma. World J Clin Oncol 2021; 12:609-622. [PMID: 34513596 PMCID: PMC8394161 DOI: 10.5306/wjco.v12.i8.609] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/11/2021] [Accepted: 07/22/2021] [Indexed: 02/06/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the major subtype of esophageal cancer that is prevalent in Eastern Asia. Despite recent advances in therapy, the outcome of ESCC patients is still dismal. MicroRNAs (miRNAs) are non-coding RNAs which can negatively modulate gene expression at the post-transcriptional level. The involvement and roles of miRNAs have become one of the hot topics of cancer research in recent years. In ESCC, genetic variations within miRNA coding genes were found to have distinct epidemiological significance in different populations. Dysregulated expression of several miRNAs was reported to be associated with therapeutic response. Functionally, miRNAs can act either in an oncogenic or a tumor-suppressive manner during tumorigenesis of ESCC by interrupting signaling pathways associated with cell proliferation, metabolism, cancer stemness, and resistance to chemo- or radiotherapy. Moreover, miRNAs modulate metastasis of ESCC by targeting genes that regulate cytoskeleton dynamics, extracellular matrix remodeling, epithelial-mesenchymal transition, and tumor microenvironment. Most importantly, mounting evidence suggests that inhibiting oncogenic miRNAs or restoring the loss of tumor-suppressive miRNAs has therapeutic potential in the treatment of ESCC. Here, we review and discuss recent studies on the significance, biological functions, and therapeutic potential of miRNAs in tumorigenesis and metastasis of ESCC.
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Affiliation(s)
- Di Cui
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong 999077, China
| | - Annie LM Cheung
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong 999077, China
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14
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Yao J, Liu X, Sun Y, Dong X, Liu L, Gu H. Curcumin-Alleviated Osteoarthritic Progression in Rats Fed a High-Fat Diet by Inhibiting Apoptosis and Activating Autophagy via Modulation of MicroRNA-34a. J Inflamm Res 2021; 14:2317-2331. [PMID: 34103964 PMCID: PMC8179815 DOI: 10.2147/jir.s312139] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/05/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose The mechanism underlying curcumin’s protective effect on osteoarthritis (OA) has not been clarified. This study aimed to determine whether curcumin exerts a chondroprotective effect by inhibiting apoptosis via upregulation of E2F1/PITX1 and activation of autophagy via the Akt/mTOR pathway by targeting microRNA-34a (miR-34a). Methods Male Sprague–Dawley rats were fed a normal diet (ND) or high-fat diet (HFD) for 28 weeks. Five rats from each diet group were selected randomly for histological analysis of OA characteristics. Rats fed a HFD were given a single intra-stifle joint injection of the miR-34a mimic agomir-34a or negative control agomir (NC), followed by weekly low-dose (200 μg/kg body weight) or high-dose (400 μg/kg body weight) curcumin intra-joint injections from weeks 29 to 32. The rats’ stifle joints were submitted to histological analysis and to an apoptotic assay. Expression of miR-34a was detected using a real-time RT-PCR. E2F1 and PITX1 protein levels were determined by Western blot analysis, and the expressions of Beclin1, LC3B, p62, phosphorylated (p)-Akt, and p-mTOR were measured using immunofluorescence analysis. Results We found that rats fed a HFD had OA-like lesions in their articular cartilage and had increased apoptosis of chondrocytes and decreased autophagy compared to rats fed a ND. Curcumin treatment alleviated OA changes, inhibited apoptosis, and upregulated autophagy. Agomir-34a treatment reduced E2F1, PITX1, Beclin1, and LC3B expression and increased p62, p-Akt, and p-mTOR expression in HFD-fed rats given low- or high-dose curcumin. Greater numbers of apoptotic cells, lesser expression of p62, p-Akt, and p-mTOR, and greater expression of E2F1, PITX1, and LC3B were observed in the agomir-34a and high-dose curcumin-treated group than in agomir-34a and low-dose curcumin-treated group. Conclusion Curcumin’s chondroprotective effect was mediated by its suppression of miR-34a, apparently by reducing apoptosis, via upregulation of E2F1/PITX1, and by augmenting autophagy, likely via the Akt/mTOR pathway.
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Affiliation(s)
- Jiayu Yao
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, Shenyang, 110122, People's Republic of China
| | - Xiaotong Liu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, Shenyang, 110122, People's Republic of China
| | - Yingxu Sun
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, Shenyang, 110122, People's Republic of China
| | - Xin Dong
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, Shenyang, 110122, People's Republic of China
| | - Li Liu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, Shenyang, 110122, People's Republic of China
| | - Hailun Gu
- Department of Orthopedics, Shengjing Hospital, China Medical University, Shenyang, 110004, People's Republic of China
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15
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Li S, Wei X, He J, Cao Q, Du D, Zhan X, Zeng Y, Yuan S, Sun L. The comprehensive landscape of miR-34a in cancer research. Cancer Metastasis Rev 2021; 40:925-948. [PMID: 33959850 DOI: 10.1007/s10555-021-09973-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/29/2021] [Indexed: 12/12/2022]
Abstract
MicroRNA-34 (miR-34) plays central roles in human diseases, especially cancers. Inactivation of miR-34 is detected in cancer cell lines and tumor tissues versus normal controls, implying its potential tumor-suppressive effect. Clinically, miR-34 has been identified as promising prognostic indicators for various cancers. In fact, members of the miR-34 family, especially miR-34a, have been convincingly proved to affect almost the whole cancer progression process. Here, a total of 512 (miR-34a, 10/21), 85 (miR-34b, 10/16), and 114 (miR-34c, 10/14) putative targets of miR-34a/b/c are predicted by at least ten miRNA databases, respectively. These targets are further analyzed in gene ontology (GO), KEGG pathway, and the Reactome pathway dataset. The results suggest their involvement in the regulation of signal transduction, macromolecule metabolism, and protein modification. Also, the targets are implicated in critical signaling pathways, such as MAPK, Notch, Wnt, PI3K/AKT, p53, and Ras, as well as apoptosis, cell cycle, and EMT-related pathways. Moreover, the upstream regulators of miR-34a, mainly including transcription factors (TFs), lncRNAs, and DNA methylation, will be summarized. Meanwhile, the potential TF upstream of miR-34a/b/c will be predicted by PROMO, JASPAR, Animal TFDB 3.0, and GeneCard databases. Notably, miR-34a is an attractive target for certain cancers. In fact, miR-34a-based systemic delivery combined with chemotherapy or radiotherapy can more effectively control tumor progression. Collectively, this review will provide a panorama for miR-34a in cancer research.
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Affiliation(s)
- Sijing Li
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiaohui Wei
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Jinyong He
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China
- China Cell-Gene Therapy Translational Medicine Research Center, Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
- School of Medicine, Sun Yat-sen University, Shenzhen, 518107, China
| | - Quanquan Cao
- MARBEC, Université Montpellier, UM-CNRS-IRD-IFREMER, cc 092, Place E. Bataillon, 34095, Montpellier Cedex 05, France
| | - Danyu Du
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiaoman Zhan
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China
| | - Yuqi Zeng
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China
| | - Shengtao Yuan
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Li Sun
- New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, China.
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16
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The Interaction of the Tumor Suppressor FAM46C with p62 and FNDC3 Proteins Integrates Protein and Secretory Homeostasis. Cell Rep 2021; 32:108162. [PMID: 32966780 DOI: 10.1016/j.celrep.2020.108162] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/23/2020] [Accepted: 08/26/2020] [Indexed: 02/06/2023] Open
Abstract
FAM46C is a non-canonical poly(A) polymerase uniquely mutated in up to 20% of multiple myeloma (MM) patients, implying a tissue-specific tumor suppressor function. Here, we report that FAM46C selectively stabilizes mRNAs encoding endoplasmic reticulum (ER)-targeted proteins, thereby concertedly enhancing the expression of proteins that control ER protein import, folding, N-glycosylation, and trafficking and boosting protein secretion. This role requires the interaction with the ER membrane resident proteins FNDC3A and FNDC3B. In MM cells, FAM46C expression raises secretory capacity beyond sustainability, inducing ROS accumulation, ATP shortage, and cell death. FAM46C activity is regulated through rapid proteasomal degradation or the inhibitory interaction with the ZZ domain of the autophagic receptor p62 that hinders its association with FNDC3 proteins via sequestration in p62+ aggregates. Altogether, our data disclose a p62/FAM46C/FNDC3 circuit coordinating sustainable secretory activity and survival, providing an explanation for the MM-specific oncosuppressive role of FAM46C and uncovering potential therapeutic opportunities against cancer.
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17
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Chen Y, Hou C, Zhao LX, Cai QC, Zhang Y, Li DL, Tang Y, Liu HY, Liu YY, Zhang YY, Yang YK, Gao CW, Yao Q, Zhu QS, Cao CH. The Association of microRNA-34a With High Incidence and Metastasis of Lung Cancer in Gejiu and Xuanwei Yunnan. Front Oncol 2021; 11:619346. [PMID: 33796457 PMCID: PMC8008071 DOI: 10.3389/fonc.2021.619346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/19/2021] [Indexed: 01/22/2023] Open
Abstract
The incidence and associated mortality of lung cancer in tin miners in Gejiu County and farmers in Xuanwei Country, Yunnan Province have been very high in the world. Current published literatures on the molecular mechanisms of lung cancer initiation and progression in Gejiu and Xuanwei County are still controversial. Studies confirmed that microRNA-34a (miR-34a) functioned as a vital tumor suppressor in tumorigenesis and progression. However, the role and precise mechanisms of miR-34a and its regulatory gene network in initiation and progression of lung cancer in Gejiu and Xuanwei County, Yunnan Province, have not been elucidated. In the current study, we first found that miR-34a was downregulated in Gejiu lung squamous carcinoma YTMLC-90, Xuanwei lung adenocarcinoma XWLC-05, and other non-small cell lung carcinoma (NSCLC) cell lines, and miR-34a overexpression inhibited cell proliferation, migration and invasion, as well as induced cell apoptosis in YTMLC-90 and XWLC-05 cells. Our findings revealed that miR-34a is critical and cannot be considered as the area-specific non-coding RNA in initiation and progression of lung cancer in Gejiu and Xuanwei County. Next we revealed that miR-34a overexpression suppressed lung cancer growth and metastasis partially via increasing PTEN but reducing CDK6 expression that might lead to subsequent inactivation of PI3K/AKT pathway. Furthermore, our findings demonstrated that YY1 functioned as a tumor suppressor gene in initiation and progression of lung cancer in Gejiu and Xuanwei County. In conclusion, our findings in the study confirmed that miR-34a overexpression could simultaneously suppress tumor growth and metastasis and play a vital role in tumorigenesis and progression of NSCLC via increasing PTEN and YY1 expression, but decreasing CDK6. Most interestingly, our findings also raised doubts about the current ideas about these area-specific diseases.
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Affiliation(s)
- Yan Chen
- School of Life Sciences, Yunnan University, Kunming, China.,Yunnan Cancer Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chun Hou
- School of Life Sciences, Yunnan University, Kunming, China
| | - Liu-Xin Zhao
- School of Life Sciences, Yunnan University, Kunming, China
| | - Qiu-Chen Cai
- School of Life Sciences, Yunnan University, Kunming, China.,Key Laboratory of the University in Yunnan Province for International Cooperation in Intercellular Communications and Regulations, Yunnan University, Kunming, China
| | - Ying Zhang
- School of Life Sciences, Yunnan University, Kunming, China
| | - Da-Lun Li
- School of Life Sciences, Yunnan University, Kunming, China
| | - Yao Tang
- School of Life Sciences, Yunnan University, Kunming, China
| | - Hong-Yu Liu
- School of Life Sciences, Yunnan University, Kunming, China
| | - Yun-Yi Liu
- School of Life Sciences, Yunnan University, Kunming, China
| | - Yue-Yan Zhang
- School of Life Sciences, Yunnan University, Kunming, China
| | - Ya-Kun Yang
- School of Life Sciences, Yunnan University, Kunming, China
| | - Cheng-Wei Gao
- School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Qian Yao
- Yunnan Cancer Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qi-Shun Zhu
- School of Life Sciences, Yunnan University, Kunming, China.,Key Laboratory of the University in Yunnan Province for International Cooperation in Intercellular Communications and Regulations, Yunnan University, Kunming, China
| | - Chuan-Hai Cao
- Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States
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18
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Mansoori B, Silvestris N, Mohammadi A, Khaze V, Baghbani E, Mokhtarzadeh A, Shanehbandi D, Derakhshani A, Duijf PHG, Baradaran B. miR-34a and miR-200c Have an Additive Tumor-Suppressive Effect on Breast Cancer Cells and Patient Prognosis. Genes (Basel) 2021; 12:267. [PMID: 33673143 PMCID: PMC7918749 DOI: 10.3390/genes12020267] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is the most common women's malignancy in the world and, for subgroups of patients, treatment outcomes remain poor. Thus, more effective therapeutic strategies are urgently needed. MicroRNAs (miRNAs) have emerged as promising therapeutic tools and targets, as they play significant roles in regulating key cellular processes by suppressing gene expression. However, additive opportunities involving miRNAs have been underexplored. For example, both miR-34a and miR-200c individually suppress the development of different types of cancer, but the cellular effects of their combined actions remain unknown. Here, we show that miR-34a and miR-200c levels are reduced in breast tumors compared to adjacent normal tissues and that this additively predicts poor patient survival. In addition, in cell lines, miR-34a and miR-200c additively induce apoptosis and cell cycle arrest, while also inhibiting proliferation, invasion, migration, stemness and epithelial-to-mesenchymal transition (EMT). Mechanistically, both miRNA-34a and miR-200c directly target HIF1-α and subsequently downregulate VEGFR, MMP9 and CXCR4, although combined miRNA-34a and miR-200c delivery suppresses mouse xenograft tumor development as effectively as individual delivery. We establish a model, supported by in vitro and clinical data, which collectively suggest that the co-delivery of miR-34a and miR-200c represents a promising novel therapeutic strategy for breast cancer patients.
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Affiliation(s)
- Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran
- Department of Cancer and Inflammation Research, Institute for Molecular Medicine, University of Southern Denmark, 5000C Odense, Denmark;
| | - Nicola Silvestris
- Medical Oncology Unit-IRCCS IstitutoTumori “Giovanni Paolo II” of Bari, 70124 Bari, Italy;
- Department of Biomedical Sciences and Human Oncology, DIMO-University of Bari, 70124 Bari, Italy
| | - Ali Mohammadi
- Department of Cancer and Inflammation Research, Institute for Molecular Medicine, University of Southern Denmark, 5000C Odense, Denmark;
| | - Vahid Khaze
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
| | - Afshin Derakhshani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
| | - Pascal H. G. Duijf
- Faculty of Health, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, 37 Kent Street, Brisbane, QLD 4102, Australia
- University of Queensland Diamantina Institute, Translational Research Institute, The University of Queensland, 37 Kent Street, Brisbane, QLD 4102, Australia
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran; (B.M.); (V.K.); (E.B.); (A.M.); (D.S.); (A.D.)
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran
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Chen YL, Liu XL, Li L. Prognostic value of low microRNA-34a expression in human gastrointestinal cancer: a systematic review and meta-analysis. BMC Cancer 2021; 21:63. [PMID: 33446130 PMCID: PMC7807881 DOI: 10.1186/s12885-020-07751-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/18/2020] [Indexed: 11/10/2022] Open
Abstract
Background Mounting evidence shows that microRNA-34a (miR-34a) is involved in cancer prognosis. Therefore, we summarize the predictive role of miR-34a for survival in patients with gastrointestinal cancers (GICs). Methods All eligible studies were found by searching PubMed, Web of Science and EMBASE, and survival results were extracted. Then, the hazard ratio (HR) with the corresponding 95% confidence interval (CI) was calculated to evaluate the prognostic role of miR-34a in GICs. The association between miR-34a expression and clinicopathological characteristics was estimated by odds ratios (ORs) and 95% CIs. Results A total of 20 studies were included in this meta-analysis. For overall survival (OS), lower miR-34a expression could probably predict poorer outcome in GICs, with a pooled HR of 1.86 (95% CI: 1.52–2.28, P < 0.01). For disease-free survival (DFS), progression-free survival (PFS), and recurrence-free survival (RFS), lower miR-34a expression was related to worse DFS/PFS/RFS with a pooled HR of 1.86 (95% CI: 1.31–2.63, P < 0.01). A significant relation of differentiation/TNM stage/lymphatic metastasis and the expression level of miR-34a was identified. Conclusion This meta-analysis revealed that lower miR-34a expression is significantly connected with worse OS and DFS/PFS/RFS in GIC patients. In addition, the miR-34a expression level is relatively lower in patients with lymph node metastasis than in patients without lymph node metastasis, and decreased miR-34a expression levels are linked to poor tumour differentiation and late TNM stage. MiR-34a may become a new factor for the prognosis prediction and progression of GICs. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-020-07751-y.
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Affiliation(s)
- Yan-Ling Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 899 Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Xiao-Lin Liu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 899 Ping Hai Road, Suzhou, 215006, Jiangsu, China.
| | - Ling Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 899 Ping Hai Road, Suzhou, 215006, Jiangsu, China.
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MicroRNA‑34a‑5p serves as a tumor suppressor by regulating the cell motility of bladder cancer cells through matrix metalloproteinase‑2 silencing. Oncol Rep 2020; 45:911-920. [PMID: 33650650 PMCID: PMC7859909 DOI: 10.3892/or.2020.7910] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 11/09/2020] [Indexed: 11/23/2022] Open
Abstract
Bladder cancer (BC), a common urologic cancer, is the fifth most frequently diagnosed tumor worldwide. hsa-miR-34a displays antitumor activity in several types of cancer. However, the functional mechanisms underlying hsa-miR-34a in BC remains largely unknown. We observed that hsa-mir-34a levels were significantly and negatively associated with clinical disease stage as well as regional lymph node metastasis in human BC. In a series of in vitro investigations, overexpression of hsa-miR-34a inhibited cell migration and invasion in BC cell lines 5637 and UMUC3 as detected by Transwell assays. We further found that hsa-miR-34a inhibited cell migration and invasion by silencing matrix metalloproteinase-2 (MMP-2) expression and thus interrupting MMP-2-mediated cell motility. Our analysis of BC datasets from The Cancer Genome Atlas database revealed a negative correlation between hsa-miR-34a and MMP-2. Moreover, higher MMP-2 protein expression was observed in the BC tissues when compared with that noted in the normal tissue. MMP-2 levels were also significantly associated with clinical disease stage and poor survival rate in human BC. These findings indicate that MMP-2 plays a critical role in regulating BC progression. Therefore, hsa-miR-34a is a promising treatment to target MMP-2 for the prevention and inhibition of cell migration and invasion in BC.
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21
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Zhen H, Li G, Zhao P, Zhang Y, Wang J, Yu J, Cao B. Raltitrexed Enhances the Antitumor Effect of Apatinib in Human Esophageal Squamous Carcinoma Cells via Akt and Erk Pathways. Onco Targets Ther 2020; 13:12325-12339. [PMID: 33293826 PMCID: PMC7719348 DOI: 10.2147/ott.s276125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/14/2020] [Indexed: 12/24/2022] Open
Abstract
Objective Apatinib has been proved effective in the treatment of advanced gastric cancer and a variety of solid tumors. Raltitrexed is emerging as a promising alternative for treating advanced colorectal cancer in China. This work aims to study the combinatory antitumor effect of apatinib and raltitrexed on human esophageal squamous carcinoma cells (ESCC). Materials and Methods Two VEGFR-2-positive human ESCC lines, KYSE-30 and TE-1, were treated with apatinib or raltitrexed, or both, then the cell proliferation rate was measured by MTS assay; cell migration and invasion were studied by transwell assays; cell apoptosis rate was determined by flow cytometry; cellular autophagy level affected was analyzed by Western blot analysis; finally, quantitative polymerase chain reaction (qPCR) was used to monitor transcription and Western blot was performed to check phosphorylation of apoptotic proteins after treatment. Results Both apatinib and raltitrexed significantly inhibited KYSE-30 and TE-1 cell proliferation in a dose-dependent manner. Treatment with both drugs showed enhanced inhibitory effects on cell proliferation, migration, and invasiveness compared with apatinib monotherapy. Apoptosis percentages in both cell lines were also remarkably increased by the combined treatment. Moreover, the combination of apatinib and raltitrexed down-regulated mRNA level of the anti-apoptotic protein Bcl-2, while up-regulated pro-apoptotic protein PARP, Bax, and caspase-3 transcription. Western blot analysis showed that phosphorylation levels of Erk, Akt, and invasiveness-associated protein matrix metalloproteinases-9 (MMP-9) were decreased in the combination group. Conclusion Taken together, these results indicate that raltitrexed enhances the antitumor effects of apatinib on human ESCC cells by down-regulating phosphorylation of Akt and Erk, implying a combination of raltitrexed and apatinib might be an effective option for treating esophageal squamous cell carcinoma patients.
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Affiliation(s)
- Hongchao Zhen
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Guangxin Li
- Radiation Oncology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, People's Republic of China
| | - Pengfei Zhao
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Ying Zhang
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Jing Wang
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Junxian Yu
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Bangwei Cao
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
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22
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Zhao G, Kang J, Xu G, Wei J, Wang X, Jing X, Zhang L, Yang A, Wang K, Wang J, Wang L, Hou J, Liu Q, Jiao K, Gao B. Tunicamycin promotes metastasis through upregulating endoplasmic reticulum stress induced GRP78 expression in thyroid carcinoma. Cell Biosci 2020; 10:115. [PMID: 33014334 PMCID: PMC7528585 DOI: 10.1186/s13578-020-00478-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/23/2020] [Indexed: 12/15/2022] Open
Abstract
Background Thyroid cancer (TC) is the most common type of endocrine malignancy and its incidence is increasing over years. Conventional surgery, radiotherapy and chemotherapy are difficult to improve the significant effects of it due to aggression and metastasis of poorly differentiated thyroid cancer (PDTC) and anaplastic thyroid cancer (ATC), and these are regarded as the most malignant types of TC. Glucose-regulated protein (GRP78) is the key molecule of tumor growth, apoptosis and metastasis. However, the underlying mechanisms of GRP78 in TC still require discussion. This study aimed to explore the role of GRP78 and its potential mechanism in TC. Results GRP78 expression was increased in TC tissues when compared with adjacent normal tissues. Besides, down-regulation of GRP78 significantly inhibited the metastatic and proliferative ability of ATC cells in in vitro studies. In addition, tunicamycin-induced ER stress up-regulated the expression of GRP78, PERK and XBP1 as well as reversed the metastatic ability of GRP78 in ATC cells. Bioinformatics and statistical analysis of gene ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways for RNA-sequencing data with regard to si-GRP78 and si-control showed that GRP78 might regulate the ability of metastasis through extracellular matrix (ECM) remodeling in ATC cells, as well as the expression of ECM components such as COL1A1 and MMP13, which were highly relevant to ATC cells. The analysis of GEPIA database confirmed that high genomic amplification of MMP13 and COL1A1 in TC tissues showed correlation with TNM stage. Further western blotting analysis showed that MMP13 might be the target of GRP78 in ATC cells and ER stress could activate the expression of MMP13 that is suppressed by GRP78 depletion. Conclusions GRP78 acts as an important regulator of metastasis under ER stress. In addition, the function of GRP78 might be mediated by ECM remodeling in ATC cells, implicating it as a therapeutic target in TC.
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Affiliation(s)
- Guohong Zhao
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Jianqin Kang
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Guanghui Xu
- Division of Digestive Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi China
| | - Jing Wei
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Xiaoguang Wang
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Xiaorui Jing
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Lan Zhang
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Aili Yang
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Kai Wang
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Jue Wang
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Li Wang
- Department of Ultrasound Diagnosis, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Junfeng Hou
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Qingquan Liu
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Kai Jiao
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
| | - Bin Gao
- Department of Endocrinology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038 Shanxi China
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23
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Zhao H, Xing F, Yuan J, Li Z, Zhang W. Sevoflurane inhibits migration and invasion of glioma cells via regulating miR-34a-5p/MMP-2 axis. Life Sci 2020; 256:117897. [PMID: 32502543 DOI: 10.1016/j.lfs.2020.117897] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 05/26/2020] [Accepted: 05/31/2020] [Indexed: 11/19/2022]
Abstract
Glioma is the most common brain malignancy and surgical resection is the primary option for patient with glioma. Anesthetics could be used to inhibit cancer dissemination and metastasis during surgery. This study aims to assess the function of volatile anesthetic sevoflurane in glioma migration and invasion and explore the potential mechanism. Twenty-five patients with glioma were recruited in this study. LN229 and U251 cells were used in vitro experiments. Cell viability was analyzed by MTT analysis. Cell migration and invasion were examined via transwell analysis. microRNA-34a-5p (miR-34a-5p) and matrix metalloproteinase-2 (MMP-2) levels were measured via quantitative real-time polymerase chain reaction. The relationship of miR-34a-5p and MMP-2 was tested via bioinformatics analysis, luciferase reporter analysis, RNA immunoprecipitation and RNA pull-down. Sevoflurane decreased glioma cell migration and invasion. In glioma cells, sevoflurane up-regulated miR-34a-5p abundance and down-regulated MMP-2 level. Overexpression of miR-34a-5p contributed to sevoflurane-caused suppression of migration and invasion, while its knockdown played an opposite effect. MMP-2 was targeted via miR-34a-5p and MMP-2 silence reversed the influence of miR-34a-5p knockdown under sevoflurane. Sevoflurane exposure represses cell migration and invasion, which might be related to inhibition of MMP-2 by up-regulating miR-34a-5p. This study provides a novel mechanism for understanding the pharmacological effects of sevoflurane on glioma.
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Affiliation(s)
- Huaping Zhao
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Fei Xing
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Jingjing Yuan
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Zhisong Li
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Wei Zhang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China.
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24
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Xia M, Shao J, Qiao M, Luo Z, Deng X, Ke Q, Dong X, Shen L. Identification of LCA-binding Glycans as a Novel Biomarker for Esophageal Cancer Metastasis using a Lectin Array-based Strategy. J Cancer 2020; 11:4736-4745. [PMID: 32626520 PMCID: PMC7330695 DOI: 10.7150/jca.43806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 05/16/2020] [Indexed: 12/17/2022] Open
Abstract
Esophageal cancer (EC) is a unique and heterogeneous disease diagnosed mostly at advanced stages. Altered glycans presented on cell surfaces are involved in the occurrence and development of malignancy. However, the effects of glycans on EC progression are largely unexplored. Here, a lectin array was utilized to detect the glycan profiling of the normal esophageal mucosal epithelial cell line and two EC cell lines. The binding of Lens culinaris lectin (LCA) to EC cells was found to be stronger than that of the normal cells. Lectin immunohistochemical staining revealed that LCA-binding glycans were markedly elevated in EC tissues compared to adjacent non-cancerous tissues. LCA staining was significantly associated with lymph node metastasis, depth of invasion, TNM stage and poor overall survival of EC patients. Added LCA to block LCA recognized glycans could inhibit the migration and invasion of EC cells. Further analysis revealed that blocking the biosynthesis of LCA-binding glycans by tunicamycin attenuated cellular migratory and invasive abilities. Additionally, a membrane glycoprotein CD147 was recognized as a binder of LCA. There was a positive correlation between LCA-binding glycans and CD147 expression in clinical samples. Interestingly, CD147 inhibition also reduced cell migration and invasion. These findings indicated that LCA-binding glycans may function as a novel indicator to predict metastasis for patients with EC.
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Affiliation(s)
- Min Xia
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.,Department of Biochemistry, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jun Shao
- Department of Biochemistry, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Meimei Qiao
- Department of Biochemistry, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zhiguo Luo
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xinzhou Deng
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Qing Ke
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xiaoxia Dong
- Department of Pharmacology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Li Shen
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.,Department of Biochemistry, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan,Hubei 442000, P.R. China
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25
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Gao D, Hao L, Zhao Z. Long non-coding RNA PART1 promotes intervertebral disc degeneration through regulating the miR‑93/MMP2 pathway in nucleus pulposus cells. Int J Mol Med 2020; 46:289-299. [PMID: 32319551 PMCID: PMC7255469 DOI: 10.3892/ijmm.2020.4580] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 03/11/2020] [Indexed: 12/29/2022] Open
Abstract
The aim of the present study was to investigate the role of the long non‑coding (lnc)RNA PART1 in nucleus pulposus (NP) cells derived from patients with intervertebral disc degeneration (IDD). The level of PART1 in degenerative NP tissues from patients with IDD, bulging and herniated discs was measured by reverse transcription‑quantitative PCR (RT‑qPCR) analysis. NP cells were isolated from patients with IDD and transfected with siPART1, after which time the growth ability of the NP cells was evaluated by Cell Counting Kit‑8 and colony formation assays, and cell apoptosis was measured by flow cytometry. The levels of the cell proliferation marker Ki‑67 and the apoptosis marker cleaved caspase‑3, and the levels of genes related to extracellular matrix (ECM) synthesis and degradation, were also evaluated by western blotting and RT‑qPCR, as appropriate. Bioinformatics methods predicted that miR‑93 was sponged by PART1, and matrix metallopeptidase (MMP)2 was targeted by miR‑93, which was further confirmed by dual‑luciferase reporter assay. The levels of miR‑93 and MMP2 were also measured in NP tissues, and further rescue experiments were performed to confirm the role of the PART1/miR‑93/MMP2 pathway in NP cells. PART1 was found to be upregulated in degenerative NP tissues, and siPART1 caused an increase in cell growth ability and ECM synthesis, whereas it decreased cell apoptosis and ECM degradation in NP cells. miR‑93 was downregulated and MMP2 was upregulated in degenerative NP tissues. Rescue experiments indicated that the effects of miR‑93 inhibitor on NP cells were abolished by siPART1, and the effect of miR‑93 mimic on NP cells was rescued by MMP2 overexpression. Thus, the results of the present study demonstrated that PART1 may regulate NP cell degeneration through the miR‑93/MMP2 pathway. These findings indicate a novel signaling axis in NP cells that may be explored for the treatment of IDD.
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Affiliation(s)
- Dongmei Gao
- Department of Pain Rehabilitation, Yan'an University Affiliated Hospital, Yan'an, Shaanxi 716000, P.R. China
| | - Long Hao
- Department of Pain Rehabilitation, Yan'an University Affiliated Hospital, Yan'an, Shaanxi 716000, P.R. China
| | - Zilong Zhao
- Department of Pathology, Ankang Central Hospital, Ankang, Shaanxi 725000, P.R. China
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26
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Kong J, Wang W. A Systemic Review on the Regulatory Roles of miR-34a in Gastrointestinal Cancer. Onco Targets Ther 2020; 13:2855-2872. [PMID: 32308419 PMCID: PMC7138617 DOI: 10.2147/ott.s234549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/22/2019] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRNAs) are a class of endogenous non-coding single-stranded small-molecule RNAs that regulate gene expression by repressing target messenger RNA (mRNA) translation or degrading mRNA. miR-34a is one of the most important miRNAs participating in various physiological and pathological processes. miR-34a is abnormally expressed in a variety of tumors. The roles of miR-34a in gastrointestinal cancer (GIC) draw lots of attention. Numerous studies have demonstrated that dysregulated miR-34a is closely related to the proliferation, differentiation, migration, and invasion of tumor cells, as well as the diagnosis, prognosis, treatment, and chemo-resistance of tumors. Thus, we systematically reviewed the abnormal expression and regulatory roles of miR-34a in GICs including esophageal cancer (EC), gastric cancer (GC), colorectal cancer (CRC), hepatocellular carcinoma (HCC), pancreatic cancer (PC), and gallbladder cancer (GBC). It may provide a profile of versatile roles of miR-34a in GICs.
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Affiliation(s)
- Jiehong Kong
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, People's Republic of China
| | - Weipeng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, People's Republic of China
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27
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Chidamide Inhibits Glioma Cells by Increasing Oxidative Stress via the miRNA-338-5p Regulation of Hedgehog Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7126976. [PMID: 32256960 PMCID: PMC7086450 DOI: 10.1155/2020/7126976] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/28/2019] [Accepted: 11/05/2019] [Indexed: 12/12/2022]
Abstract
Objective Chidamide has a broad spectrum of antitumor activity but its function on glioma remains unknown. The increase of reactive oxygen species (ROS) and reactive nitrogen species (RNS) may control glioma risk by promoting its apoptosis and necrosis. Hedgehog pathway is crucial to glioma cell proliferation and controls ROS production. We aimed to explore the effects of chidamide on the levels of miR-338-5p (glioma cell inhibitor), which may regulate Hedgehog signaling, resulting in the changes of RNS. Materials and Methods. Migration and invasion activities of glioma cells were measured by using the Transwell chamber assay. The expression levels of Sonic Hedgehog (Shh), Indian Hedgehog (Ihh), Desert Hedgehog (Dhh), miR-338-5p, and related molecules were detected by using real-time PCR (RT-PCR) and or Western Blot in U87 and HS683 glioma cells. The effects of chidamide on these molecules were measured by using the miR-338-5p inhibitor or mimics in U87 and HS683 glioma cell lines. ROS and RNS were measured by DCF DA and DAF-FM DA fluorescence. Biomarkers of oxidative stress were measured by using a corresponding kit. Apoptosis and necrosis rates were measured by using flow cytometry. Results Chidamide inhibited the growth rate, migration, and invasion of human malignant glioma cells and increased the level of miR-338-5p. miR-338-5p inhibitor or mimics increased or inhibited the growth rate of U87 and HS683 glioma cells. Chidamide inhibited the levels of Shh, Ihh, migration protein E-cadherin, and invading protein MMP-2. The increase in the level of Shh and Ihh led to the reduction in the ROS and RNS levels. miR-338-5p inhibitor or mimics also showed a promoting or inhibitory function for the levels of Shh and Ihh. Furthermore, miR-338-5p mimics and inhibitor inhibited or promoted the migration and invasion of the glioma cells (P < 0.05). Evaluated levels of miR-338-5p increased oxidative stress level and apoptosis and necrosis rate by regulating the levels of biomarkers of oxidative stress (P < 0.05). Evaluated levels of miR-338-5p increased oxidative stress level and apoptosis and necrosis rate by regulating the levels of biomarkers of oxidative stress ( Conclusion Chidamide inhibits glioma cells by increasing oxidative stress via the miRNA-338-5p regulation of Hedgehog signaling. Chidamide may be a potential drug in the prevention of glioma development.
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28
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Hou Q, Han S, Yang L, Chen S, Chen J, Ma N, Wang C, Tang J, Chen X, Chen F, Dong XDE, Tu L. The Interplay of MicroRNA-34a, LGR4, EMT-Associated Factors, and MMP2 in Regulating Uveal Melanoma Cells. Invest Ophthalmol Vis Sci 2020; 60:4503-4510. [PMID: 31661551 DOI: 10.1167/iovs.18-26477] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose MicroRNA-34a (miR-34a) has been implicated in many biological processes. It is downregulated in uveal melanoma, and introduction of miR-34a inhibits the proliferation and migration of uveal melanoma cells. Leucine-rich repeat-containing G protein-coupled receptor 4 (LGR4) is a novel target of miR-34a identified first in retinal pigment epithelial cells. In this study, we sought to evaluate the interaction of miR-34a and LGR4 in uveal melanoma and its downstream mechanisms. Methods The expression of LGR4, epithelial-mesenchymal transition (EMT)-associated factors, and matrix metalloproteinase 2 (MMP2) in uveal melanoma cells was assessed by immunoblotting and immunofluorescence analysis. MicroRNA-34a mimic molecules, LGR4 small interfering RNA (siRNA), or MMP2-specific siRNA were transiently transfected into uveal melanoma cells. In vitro scratch and Transwell assays were used to evaluate the migratory and invasive potential of the resultant uveal melanoma cells. Results LGR4 is upregulated in uveal melanoma cells. Introduction of miR-34a significantly decreased the expression level of LGR4. Transfection with miR-34a or knockdown of LGR4 attenuated the aggressiveness of uveal melanoma cells. In addition, there was a decrease in the expression of mesenchymal markers N-cadherin, vimentin, and Snail following miR-34a introduction or knockdown of LGR4. Finally, MMP2 was found to be a downstream effector for miR-34a and LGR4 that regulates the migration and invasion of uveal melanoma cells. Conclusions MicroRNA-34a negatively controls LGR4, thereby inhibiting the migration and invasion of uveal melanoma cells. Ultimately, both miR-34a and LGR4 impact the aggressiveness of uveal melanoma with alterations in the markers of the EMT. MMP2 is a downstream effector that influences the metastasis seen with uveal melanoma cells.
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Affiliation(s)
- Qiang Hou
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shuxian Han
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lin Yang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shengwen Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Junxiu Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Nan Ma
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chao Wang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jiajia Tang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaogang Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Feng Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiang Da Eric Dong
- Department of Surgery, Westchester Medical Center, New York Medical College, Valhalla, New York, United States
| | - LiLi Tu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Optometry, Ophthalmology and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
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29
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Xie J, Lin LS, Huang XY, Gan RH, Ding LC, Su BH, Zhao Y, Lu YG, Zheng DL. The NOTCH1-HEY1 pathway regulates self-renewal and epithelial-mesenchymal transition of salivary adenoid cystic carcinoma cells. Int J Biol Sci 2020; 16:598-610. [PMID: 32025208 PMCID: PMC6990919 DOI: 10.7150/ijbs.36407] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/12/2019] [Indexed: 12/13/2022] Open
Abstract
Our previous study demonstrated a close relationship between the NOTCH signaling pathway and salivary adenoid cystic carcinoma (SACC). Its receptor gene, NOTCH1, and its downstream gene, HES1, contribute to the proliferation, invasion and metastasis of SACC. Accumulating evidence supports HEY1 as another effector of the signaling pathway. The purpose of this study was to explore the effects of the NOTCH1-HEY1 pathway on the proliferation, invasion and metastasis of SACC cells. Our results verified that HEY1 is a specific molecular target of the NOTCH signaling pathway in SACC cells and that its expression in carcinoma is much higher than that in paracarcinoma tissues. The expression of NOTCH1 and HEY1 are positively correlated in the salivary adenoid cystic carcinoma tissues. NOTCH1 is significantly related to the activation of HEY1 in SACC, and that HEY1 reciprocally regulates NOTCH1 expression in SACC. HEY1 promotes cell proliferation and spheroid formation and inhibits cell apoptosis in vitro. In addition, HEY1 enhances the tumorigenicity of SACC in vivo. Furthermore, HEY1 increases cell invasion and metastasis by driving the expression of epithelial-mesenchymal transition (EMT)-related genes and MMPs. The results of this study indicate that the NOTCH1-HEY1 pathway is specifically upregulated in SACC and promotes cell proliferation, self-renewal, invasion, metastasis and the expression of EMT-related genes and MMPs. Our findings suggest that a NOTCH1-HEY1 pathway inhibitor might therefore have potential therapeutic applications in treating SACC patients by inhibiting cancer cell growth and metastasis.
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Affiliation(s)
- Jing Xie
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China.,Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, 1 Xue Yuan Road, University Town, Fuzhou 350122, China
| | - Li-Song Lin
- Department of Oral and Maxillofacial Surgery, Affiliated First Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou 350005, China
| | - Xiao-Yu Huang
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China.,Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, 1 Xue Yuan Road, University Town, Fuzhou 350122, China
| | - Rui-Huan Gan
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China.,Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China
| | - Lin-Can Ding
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China
| | - Bo-Hua Su
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China
| | - Yong Zhao
- Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China.,Department of pathology, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China
| | - You-Guang Lu
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, 246 Yang Qiao Middle Road, Fuzhou 350000, China.,Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China
| | - Da-Li Zheng
- Key laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Rd, Fuzhou 350004, China
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Transforming growth factor-β1 enhances proliferative and metastatic potential by up-regulating lymphoid enhancer-binding factor 1/integrin αMβ2 in human renal cell carcinoma. Mol Cell Biochem 2019; 465:165-174. [PMID: 31848806 DOI: 10.1007/s11010-019-03676-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 12/07/2019] [Indexed: 12/12/2022]
Abstract
Renal cell carcinoma (RCC) is a kind of malignant tumor with high recurrence, and it is urgent to find molecular markers for diagnosis and prognosis of RCC. Our study investigated the expression and function of integrin αMβ2 in RCC cells, aiming to understand the role of integrin αMβ2 in RCC and develop new therapeutic target for RCC. Overexpression and knockdown of lymphoid enhancer-binding factor 1 (LEF1) were performed using vector containing full-length cDNA and via siRNA technology, respectively. The expressions of mRNA and protein were detected by RT-PCR and Western blot, respectively. Proliferation of RCC cell was analyzed using WST-1 assay, and metastasis of RCC cell was evaluated using the transwell system. Our results demonstrated that LEF1 and integrin αMβ2 were up-regulated in RCC cells via TGF-β1-dependent mechanism, and LEF1 together with β-catenin directly increased integrin αMβ2 level. On the other hand, TGF-β1-induced proliferation, migration and invasion were suppressed by function-blocking antibody against integrin αMβ2 in RCC cells. In addition, integrin αMβ2 is crucial for LEF1 mediated cell invasion by regulating MMP-2, MMP-9 and calpain-2 secretion in RCC cells. LEF1/integrin αMβ2 expression was regulated by TGF-β1, and LEF1/integrin αMβ2 was involved in TGF-β1's improvement effects on the proliferation and metastasis of RCC. Blocking integrin αMβ2 activity could be a therapeutic option for patients with advanced RCC.
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31
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Madadi S, Schwarzenbach H, Saidijam M, Mahjub R, Soleimani M. Potential microRNA-related targets in clearance pathways of amyloid-β: novel therapeutic approach for the treatment of Alzheimer's disease. Cell Biosci 2019; 9:91. [PMID: 31749959 PMCID: PMC6852943 DOI: 10.1186/s13578-019-0354-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/01/2019] [Indexed: 02/07/2023] Open
Abstract
Imbalance between amyloid-beta (Aβ) peptide synthesis and clearance results in Aβ deregulation. Failure to clear these peptides appears to cause the development of Alzheimer's disease (AD). In recent years, microRNAs have become established key regulators of biological processes that relate among others to the development and progression of neurodegenerative diseases, such as AD. This review article gives an overview on microRNAs that are involved in the Aβ cascade and discusses their inhibitory impact on their target mRNAs whose products participate in Aβ clearance. Understanding of the mechanism of microRNA in the associated signal pathways could identify novel therapeutic targets for the treatment of AD.
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Affiliation(s)
- Soheil Madadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Heidi Schwarzenbach
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Massoud Saidijam
- Department of Genetics and Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reza Mahjub
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Meysam Soleimani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
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32
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Zhang WC, Yang JH, Liu GH, Yang F, Gong JL, Jia MG, Zhang MJ, Zhao LS. miR-34b/c regulates doxorubicin-induced myocardial cell injury through ITCH. Cell Cycle 2019; 18:3263-3274. [PMID: 31627713 DOI: 10.1080/15384101.2019.1673618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Objective: To determine the underlying mechanism of miR-34b/c in regulating doxorubicin (Dox)-induced myocardial cell injury.Methods: The viability of mouse myocardial cells HL-1 was detected by MTT assay. The apoptosis of HL-1 cells was detected by TUNEL assay. mRNA expressions of ITCH, TNF-α and IL-6 were measured by qRT-PCR. Protein levels of ITCH, NF-κB, TNF-α and IL-6 were measured by western blot. Dual luciferase assay was performed to detect the regulation of miR-34b/c on ITCH. Mouse model of cardiomyopathy was induced by intraperitoneal injection of Dox.Results: Dox reduced HL-1 cell viability and activated NF-κB pathway in HL-1 cells. miR-34b/c expressions were gradually up-regulated and ITCH expression was gradually down-regulated in Dox-treated HL-1 cells. miR-34b/c expression had negative correlation with the mRNA expression of ITCH. Besides, ITCH was a target of miR-34b/c. miR-34b/c mimic reduced cell viability, suppressed ITCH expression, increased TNF-α and IL-6 level, and promoted NF-κB expression in nucleus and cytoplasm of HL-1 cells. Whereas silencing miR-34 protected HL-1 cells through regulating ITCH. Finally, we demonstrated miR-34 antagomir-protected myocardial cells in mouse model of cardiomyopathy.Conclusion: miR-34b/c decreased HL-1 cell viability and promoted the secretion of proinflammatory cytokines in Dox-induced myocardial cells through ITCH/NF-κB pathway.
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Affiliation(s)
- Wen-Cai Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jin-Hua Yang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guang-Hui Liu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Fan Yang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jun-Long Gong
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Meng-Ge Jia
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Meng-Juan Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Luo-Sha Zhao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Simbulan-Rosenthal CM, Dougherty R, Vakili S, Ferraro AM, Kuo LW, Alobaidi R, Aljehane L, Gaur A, Sykora P, Glasgow E, Agarwal S, Rosenthal DS. CRISPR-Cas9 Knockdown and Induced Expression of CD133 Reveal Essential Roles in Melanoma Invasion and Metastasis. Cancers (Basel) 2019; 11:cancers11101490. [PMID: 31623313 PMCID: PMC6827046 DOI: 10.3390/cancers11101490] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 09/26/2019] [Accepted: 10/01/2019] [Indexed: 02/07/2023] Open
Abstract
CD133, known as prominin1, is a penta-span transmembrane glycoprotein presumably a cancer stem cell marker for carcinomas, glioblastomas, and melanomas. We showed that CD133(+) ‘melanoma-initiating cells’ are associated with chemoresistance, contributing to poor patient outcome. The current study investigates the role(s) of CD133 in invasion and metastasis. Magnetic-activated cell sorting of a melanoma cell line (BAKP) followed by transwell invasion assays revealed that CD133(+) cells are significantly more invasive than CD133(−) cells. Conditional reprogramming of BAKP CD133(+) cells maintained stable CD133 overexpression (BAK-R), and induced cancer stem cell markers, melanosphere formation, and chemoresistance to kinase inhibitors. BAK-R cells showed upregulated CD133 expression, and consequently were more invasive and metastatic than BAK-P cells in transwell and zebrafish assays. CD133 knockdown by siRNA or CRISPR-Cas9 (BAK-R-T3) in BAK-R cells reduced invasion and levels of matrix metalloproteinases MMP2/MMP9. BAK-R-SC cells, but not BAK-R-T3, were metastatic in zebrafish. While CD133 knockdown by siRNA or CRISPR-Cas9 in BAK-P cells attenuated invasion and diminished MMP2/MMP9 levels, doxycycline-induced CD133 expression in BAK-P cells enhanced invasion and MMP2/MMP9 concentrations. CD133 may therefore play an essential role in invasion and metastasis via upregulation of MMP2/MMP9, leading to tumor progression, and represents an attractive target for intervention in melanoma.
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Affiliation(s)
- Cynthia M Simbulan-Rosenthal
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Ryan Dougherty
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Sahar Vakili
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Alexandra M Ferraro
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Li-Wei Kuo
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Ryyan Alobaidi
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Leala Aljehane
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Anirudh Gaur
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | | | - Eric Glasgow
- Department of Oncology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Seema Agarwal
- Department of Pathology, Georgetown University School of Medicine, Washington, DC 20007, USA.
| | - Dean S Rosenthal
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, DC 20007, USA.
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Cai H, Yang X, Gao Y, Xu Z, Yu B, Xu T, Li X, Xu W, Wang X, Hua L. Exosomal MicroRNA-9-3p Secreted from BMSCs Downregulates ESM1 to Suppress the Development of Bladder Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:787-800. [PMID: 31734559 PMCID: PMC6861677 DOI: 10.1016/j.omtn.2019.09.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/25/2022]
Abstract
Exosomes, carriers to transfer endogenous molecules, derived from bone marrow-derived mesenchymal stem cells (BMSCs) have been reported to play a role in the progression of bladder cancer. Here we aimed to test the functional mechanism of microRNA-9-3p (miR-9-3p)-containing exosomes derived from BMSCs in bladder cancer. BMSCs were cocultured with bladder cancer cells, and exosomes secreted from BMSCs were identified. Next, the expression of miR-9-3p and endothelial cell-specific molecule 1 (ESM1) in bladder cancer tissues and cells was determined. Then effects of miR-9-3p and ESM1 via BMSC-derived exosomes on bladder cancer cell viability, migration, invasion, and apoptosis were determined by loss- and gain-of-function experiments and on in vivo tumor growth, and metastasis was assessed in nude mice. miR-9-3p expression was decreased and ESM1 was increased in bladder cancer. BMSCs inhibited bladder cancer cell viability, migration, and invasion, and induced apoptosis, whereas the addition of exosome secretion inhibitor GW4869 achieved the opposite effects. Moreover, exosomal miR-9-3p upregulation or ESM1 silencing suppressed bladder cancer cell viability, migration, and invasion; induced cell apoptosis; and inhibited in vivo tumor growth and metastasis. Taken together, BMSC-derived exosomal miR-9-3p suppressed the progression of bladder cancer through ESM1 downregulation, offering a potential novel therapeutic target for bladder cancer therapy.
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Affiliation(s)
- Hongzhou Cai
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xuejian Yang
- Department of Urology, Suqian First Hospital, Suqian 223800, P.R. China
| | - Yang Gao
- Department of Radiology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Zicheng Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Bin Yu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Ting Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xiao Li
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Weizhang Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xinwei Wang
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China.
| | - Lixin Hua
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China.
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Wu J, Gao F, Xu T, Li J, Hu Z, Wang C, Long Y, He X, Deng X, Ren D, Zhou B, Dai T. CLDN1 induces autophagy to promote proliferation and metastasis of esophageal squamous carcinoma through AMPK/STAT1/ULK1 signaling. J Cell Physiol 2019; 235:2245-2259. [PMID: 31498437 DOI: 10.1002/jcp.29133] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/23/2019] [Indexed: 12/12/2022]
Abstract
Tight junction is a structural constitution in cell-cell adhesion and play an important role in the maintenance of permeability and integrity of normal epithelial cell barrier. The protein encoded by Claudin 1 (CLDN1), a member of the claudin family, is an integral membrane protein and a component of tight junction strands. CLDN1 has been proved to regulate the proliferation and metastasis of multiple tumors, but little is known about its role in esophageal squamous cell carcinoma (ESCC). Here, we found that CLDN1 was aberrantly increased in ESCC tissues and cell lines, and mainly distributed in the nucleus of tumor cells. Furthermore, we confirmed that CLDN1 promoted the proliferation and metastasis of ESCC by triggering autophagy both in vitro and in vivo. Mechanically, we validated that CLDN1-induced autophagy via increasing Unc-51 like autophagy activating kinase 1 (ULK1) expression through AMP-activated protein kinase (AMPK)/signal transducer and activator of transcription 1 (STAT1) signaling pathway in ESCC cells. Taken together, our findings demonstrated that aberrant expression and distribution of CLDN1 promoted the proliferation and metastasis of esophageal squamous carcinoma by triggering autophagy through AMPK/STAT1/ULK1 signaling pathway.
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Affiliation(s)
- Jian Wu
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - FengXia Gao
- Department of Immunology, Basic Medicine College, South West Medical University, Luzhou, Sichuan, China
| | - Tao Xu
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - Jun Li
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - Zhi Hu
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - Chao Wang
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China.,Department of Immunology, Basic Medicine College, South West Medical University, Luzhou, Sichuan, China.,Experiment Medicine Center, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China.,Drug Discovery Research Center, Southwest Medical University, Luzhou, Sichuan, China.,Laboratory for Cardiovascular Pharmacology of Department of Pharmacology, The School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yang Long
- Experiment Medicine Center, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - XueMei He
- Experiment Medicine Center, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - Xin Deng
- Drug Discovery Research Center, Southwest Medical University, Luzhou, Sichuan, China.,Laboratory for Cardiovascular Pharmacology of Department of Pharmacology, The School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - DeLian Ren
- Department of Immunology, Basic Medicine College, South West Medical University, Luzhou, Sichuan, China
| | - Biao Zhou
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
| | - TianYang Dai
- Department of Cardio-Thoracic Surgery, The Affiliated Hospital of South West Medical University, Luzhou, Sichuan, China
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Xu D, Su C, Guo L, Yan H, Wang S, Yuan C, Chen G, Pang L, Zhang N. Predictive Significance of Serum MMP-9 in Papillary Thyroid Carcinoma. Open Life Sci 2019; 14:275-287. [PMID: 33817161 PMCID: PMC7874766 DOI: 10.1515/biol-2019-0031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 03/22/2019] [Indexed: 01/13/2023] Open
Abstract
Objective The incidence of papillary thyroid carcinoma (PTC) is increasing, and there are no reliable serum biomarkers for the diagnosis and prognosis of PTC. This study aimed to assess whether serum matrix metalloproteinase-9 (MMP-9) could serve as an auxiliary diagnostic/prognostic marker for PTC after total and partial thyroidectomy. Material and Methods Postoperative serum MMP-9 concentrations were measured in 182 male patients with PTC, 86 male patients with benign thyroid nodule (BTN), and 62 male healthy controls (HCs). Multivariate logistic regression and Cox regression were applied to evaluate the correlation between variables. The performance of serum MMP-9 in diagnosing PTC and predicting structural persistent/recurrent disease (SPRD) during 48 months of follow-up after initial surgery was evaluated by receiving operating characteristic curve analysis. Results The median serum MMP-9 concentration in the PTC group (79.45 ng/ml) was significantly higher than those in the BTN group (47.35 ng/ml) and HC group (47.71 ng/ml). The area under the curve (AUC) for predicting PTC from BTN was 0.852 at a cut-off value of 60.59 ng/ml. Serum MMP-9 was negatively correlated with disease-free survival (OR 1.026, P=0.001). Serum MMP-9 exhibited good performance in predicting SPRD at a cutoff value of 99.25 ng/ml with an AUC of 0.818. Advanced TNM stage (OR 31.371, P=0.019) and serum MMP-9 ≥99.25 ng/ml (OR 4.103, P=0.022) were independent risk factors for SPRD. Conclusions Serum MMP-9 potentially represents a good predictive biomarker for PTC diagnosis and prognosis after thyroidectomy in Chinese male patients for whom radio-imaging indicates suspected PTC.
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Affiliation(s)
- Dahai Xu
- Department of Emergency, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021,China
| | - Chang Su
- Department of Thyroid Surgery, the First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Liang Guo
- Department of Pathology, the First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - He Yan
- Department of Emergency, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021,China
| | - Shaokun Wang
- Department of Emergency, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021,China
| | - Congwang Yuan
- Department of Pain, Yancheng First People’s Hospital, Yancheng, Jiangsu, 224000, China
| | - Guohui Chen
- Department of Pathology, Jilin City People’s Hospital, Jilin, 132000, China
| | - Li Pang
- Department of Emergency, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021,China
- E-mail:
| | - Nan Zhang
- Department of Emergency, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021,China
- E-mail:
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Chu J, Li H, Xing Y, Jia J, Sheng J, Yang L, Sun K, Qu Y, Zhang Y, Yin H, Wan J, He F. LncRNA MNX1-AS1 promotes progression of esophageal squamous cell carcinoma by regulating miR-34a/SIRT1 axis. Biomed Pharmacother 2019; 116:109029. [PMID: 31170665 DOI: 10.1016/j.biopha.2019.109029] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are powerful factors influencing the tumorigenesis and metastasis of multiple carcinomas. LncRNA MNX1-AS1 plays critical roles in the progression of tumor formation according to recent research, while its roles in esophageal squamous cell carcinoma (ESCC) remains unknown. METHODS The expression levels of lncRNA MNX1-AS1 were examined in ESCC tissues by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). The role of lncRNA MNX1-AS1 was performed by WST-1 proliferation assays, migration and invasion assays. Besides, the molecular mechanism of lncRNA MNX1-AS1 was verified by online bioinformatics, qRT-PCR and rescue assays. RESULTS MNX1-AS1 was signifcantly upregulated in ESCC tissues. It was conformed that high MNX1-AS1 expression was associated with ESCC lymph node metastasis. Moreover, we found that knockdown of MNX1-AS1 apparently suppressed the cell proliferation, migration, and invasion capacity. Flow cytometry analysis showed MNX1-AS1 regulated ESCC cell cycle and apoptosis progression. Mechanism analysis revealed that miR-34a inhibitor could rescue the influence of inhibiting MNX1-AS1 on ESCC cells migration by serving as competing endogenous RNA (ceRNAs). Furthermore, we found that miR-34a specifically targeted SIRTI. CONCLUSIONS Taken together, we demonstrated that lncRNA MNX1-AS1/miR-34a/SIRT1 regulatory axis could play an important role in ESCC progression, and MNX1-AS1 may act as a novel potential biomarker for esophageal squamous cell carcinoma.
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Affiliation(s)
- Jie Chu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Hongle Li
- Department of Molecular Pathology, The Affiliated Cancer Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yurong Xing
- Department of Physical Examination, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Jinlin Jia
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Jinxiu Sheng
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Lijun Yang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Kaiyan Sun
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yunhui Qu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yan Zhang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Huiqing Yin
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Junhu Wan
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Fucheng He
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
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Abdeyrim A, Cheng X, Lian M, Tan Y. miR‑490‑5p regulates the proliferation, migration, invasion and epithelial‑mesenchymal transition of pharyngolaryngeal cancer cells by targeting mitogen‑activated protein kinase kinasekinase 9. Int J Mol Med 2019; 44:240-252. [PMID: 31115491 PMCID: PMC6559303 DOI: 10.3892/ijmm.2019.4196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 05/08/2019] [Indexed: 11/05/2022] Open
Abstract
MicroRNA (miRNA/miR) has been identified to be a promising tool in treating pharyngolaryngeal cancer. The present study aimed to investigate the role of miR‑490‑5p in the regulation of proliferation, migration, invasion and epithelial‑mesenchymal transition (EMT) of pharyngolaryngeal cancer cells. The data of miR‑490‑5p expression levels of 45 cases were obtained from the People's Hospital of Xinjiang Uygur Autonomous Region, and the prediction of the target of miR‑490‑5p was conducted by bioinformatics and verified using a luciferase assay. Cell viability was determined by cell counting kit‑8. Migration and invasion rates were measured by wound healing test and Transwell apparatus, respectively. Colony formation rate was measured by plate colony formation assay. mRNA and protein levels were determined by quantitative polymerase chain reaction and western blotting, respectively. miR‑490‑5p expression was significantly depressed in primary pharyngolaryngeal cancer tissues and cell lines, leading to an unfavorable prognosis. Evidently, miR‑490‑5p overexpression decreased the cell viabilities of BICR 18 and FaDu cells. Mechanically, miR‑490‑5p could target mitogen‑activated protein kinase kinasekinase 9 (MAP3K9). The overexpression of MAP3K9 could promote cell viability, migration and invasion rates, EMT process and ability of cloning, miR‑490‑5p could target MAP3K9 and further modulate the proliferation, migration, invasion and EMT of pharyngolaryngeal cancer cells. The results of the present study provide a novel entry point to the treatment of pharyngolaryngeal cancer.
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Affiliation(s)
- Arikin Abdeyrim
- Department of Otorhinolaryngology Head and Neck Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, Xinjiang 830001, P.R. China
| | - Xiuqin Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, Xinjiang 830001, P.R. China
| | - Meng Lian
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, P.R. China
| | - Yuanyouan Tan
- Department of Otorhinolaryngology Head and Neck Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, Xinjiang 830001, P.R. China
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Wang X, Chen X, Sun L, Bi X, He H, Chen L, Pang J. MicroRNA‑34a inhibits cell growth and migration in human glioma cells via MMP‑9. Mol Med Rep 2019; 20:57-64. [PMID: 31115528 PMCID: PMC6580036 DOI: 10.3892/mmr.2019.10233] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 01/21/2019] [Indexed: 12/21/2022] Open
Abstract
The present study was designed to investigate the function of matrix metalloproteinase-9 (MMP-9) in human glioma cells and the potential regulatory mechanisms. Reverse transcription-quantitative polymerase chain reaction was used to analyze the expression of MMP-9 and microRNA-34a (miR-34a) in the plasma of patients with glioma and healthy volunteers. MTT and Transwell assays were used to assess cell growth and migration, respectively. Annexin-V/propidium iodide staining was used to measure cell apoptosis. In addition, MMP-9 expression was measured using western blot analysis. In patients with glioma, MMP-9 expression was increased, while miR-34a expression was suppressed, compared with the normal group. Overall survival (OS) and disease-free survival (DFS) of patients with high MMP-9 expression were decreased compared with those with low MMP-9 expression. OS and DFS of patients with low miR-34a expression were decreased compared with those with high miR-34a expression. Downregulation of miR-34a promoted cell growth and migration, and inhibited apoptosis in U251-MG glioma cells. However, overexpression of miR-34a inhibited cell growth and migration, and induced apoptosis in glioma cells. Furthermore, downregulation of miR-34a using anti-miR-34a induced MMP-9 protein expression in glioma cells; whereas, overexpression of miR-34a suppressed MMP-9 protein expression in glioma cells. SB-3CT, an inhibitor of MMP-9, attenuated the effects of miR-34a mimic on glioma cells. Together, these results indicated that miR-34a inhibited cell growth and migration in human glioma cells by regulating MMP-9.
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Affiliation(s)
- Xuepeng Wang
- Department of Neurosurgery, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Xi Chen
- Department of Neurology, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Lin Sun
- Department of Production, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Xiaoli Bi
- Department of CT, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Haitao He
- Department of Cycle of Ιnternal, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Lei Chen
- Department of Neurosurgery, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
| | - Jinfeng Pang
- Department of Neurosurgery, Affiliated Hospital of Beihua University, Jilin City, Jilin 132000, P.R. China
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Shan XS, Liu Y, Lou QB, Zhou ZF. Sevoflurane regulates migration and invasion of colorectal cancer cells by up-regulating miR-34a. Shijie Huaren Xiaohua Zazhi 2019; 27:146-153. [DOI: 10.11569/wcjd.v27.i3.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the effect of sevoflurane on the migration and invasion of human colorectal cancer HCT116 cells, and to explore the underlying molecular mechanism.
METHODS The effect of sevoflurane on the proliferation of HCT116 cells was examined by CCK-8 assay. Real-time quantitative PCR was used to detect the expression of miR-34a in cells. Transwell assay was used to detect cell migration and invasion. Western blot was used to detect the expression levels of MMP-2 and MMP-9 in cells.
RESULTS The concentration of action of sevoflurane was determined to be 4% by CCK-8 assay. The expression of miR-34a increased by 79% after treatment of HCT116 cells with 4% sevoflurane for 4 h. After transfection with miR-34a inhibitor, the expression level of miR-34a in cells decreased by 81%. After sevoflurane intervention, the number of migrated cells decreased from 97.75 ± 16.10 to 36.60 ± 8.58, the number of invasive cells decreased from 64.22 ± 6.25 to 26.48 ± 3.10, the expression level of MMP-2 protein was down-regulated from 0.68 ± 0.11 to 0.24 ± 0.04, and the expression level of MMP-9 protein was down-regulated from 0.48 ± 0.07 to 0.13 ± 0.02. After inhibiting the expression of miR-34a, the number of migrated cells was increased from 40.15 ± 9.02 to 88.65 ± 12.74, the number of invasive cells increased from 26.12 ± 3.02 to 59.24 ± 4.68, the expression level of MMP-2 protein was up-regulated from 0.22 ± 0.03 to 0.61 ± 0.09, and the expression level of MMP-9 protein was up-regulated from 0.14 ± 0.03 to 0.43 ± 0.06.
CONCLUSION Sevoflurane inhibits the migration and invasion of human colorectal cancer HCT116 cells by up-regulating the expression of miR-34a, which may be related to the inhibition of MMP-2 and MMP-9 protein expression.
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Affiliation(s)
- Xiao-Shan Shan
- Department of Anesthesiology, Yiwu Central Hospital, Yiwu 322000, Zhejiang Province, China
| | - Yu Liu
- Department of Anesthesiology, Yiwu Central Hospital, Yiwu 322000, Zhejiang Province, China
| | - Qun-Bing Lou
- Department of Anesthesiology, Yiwu Central Hospital, Yiwu 322000, Zhejiang Province, China
| | - Zhen-Feng Zhou
- Department of Anesthesiology, Zhejiang Province People's Hospital, Hangzhou 310014, Zhejiang Province, China
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MicroRNA-34 family: a potential tumor suppressor and therapeutic candidate in cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:53. [PMID: 30717802 PMCID: PMC6360685 DOI: 10.1186/s13046-019-1059-5] [Citation(s) in RCA: 294] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/27/2019] [Indexed: 12/20/2022]
Abstract
MicroRNA-34 (miR-34) has been reported to be dysregulated in various human cancers and regarded as a tumor suppressive microRNA because of its synergistic effect with the well-known tumor suppressor p53. Along with the application of MRX34, the first tumor-targeted microRNA drug which based on miR-34a mimics, on phase I clinical trial (NCT01829971), the significance of miR-34 is increasingly recognized. miR-34 plays a crucial role on repressing tumor progression by involving in epithelial-mesenchymal transition (EMT) via EMT- transcription factors, p53 and some important signal pathways. Not only that, numerous preclinical researches revealed the giant potential of miR-34a on cancer therapy through diversiform nano-scaled delivery systems. Here, we provide an overview about the function of miR-34 in various cancers and the mechanism of miR-34 in tumor-associated EMT. Furthermore, its potential role as a microRNA therapeutic candidate is also discussed. Notwithstanding some obstacles existed, the extensive application prospect of miR-34 on oncotherapy cannot be neglected.
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Córdova-Rivas S, Fraire-Soto I, Mercado-Casas Torres A, Servín-González LS, Granados-López AJ, López-Hernández Y, Reyes-Estrada CA, Gutiérrez-Hernández R, Castañeda-Delgado JE, Ramírez-Hernández L, Varela-Silva JA, López JA. 5p and 3p Strands of miR-34 Family Members Have Differential Effects in Cell Proliferation, Migration, and Invasion in Cervical Cancer Cells. Int J Mol Sci 2019; 20:E545. [PMID: 30696040 PMCID: PMC6387060 DOI: 10.3390/ijms20030545] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/16/2019] [Accepted: 01/19/2019] [Indexed: 12/24/2022] Open
Abstract
The micro RNA (miR)-34 family is composed of 5p and 3p strands of miR-34a, miR-34b, and miR-34c. The 5p strand's expression and function is studied in cervical cancer. The 3p strand's function and regulation remain to be elucidated. To study the function of the passenger strands of miR-34 family members, we overexpressed 5p and 3p strands using a synthetic miRNA in cervical cell lines. Cell proliferation was evaluated using crystal violet. Migration and invasion were tested using transwell assays, Western blot, and zymography. Possible specific targets and cell signaling were investigated for each strand. We found that miR-34a-5p inhibited proliferation, migration, and cell invasion accompanied by matrix metalloproteinase 9 (MMP9) activity and microtubule-associated protein 2 (MAP2) protein reduction. We also found that miR-34b-5p and miR-34c-5p inhibit proliferation and migration, but not invasion. In contrast, miR-34c-5p inhibits MMP9 activity and MAP2 protein, while miR-34b-5p has no effect on these genes. Furthermore, miR-34a-3p and miR-34b-3p inhibit proliferation and migration, but not invasion, despite the later reducing MMP2 activity, while miR-34c-3p inhibit proliferation, migration, and cell invasion accompanied by MMP9 activity and MAP2 protein inhibition. The difference in cellular processes, MMP2 and MMP9 activity, and MAP2 protein inhibition by miR-34 family members suggests the participation of other regulated genes. This study provides insights into the roles of passenger strands (strand*) of the miR-34 family in cervical cancer.
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Affiliation(s)
- Sergio Córdova-Rivas
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | - Ixamail Fraire-Soto
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | - Andrea Mercado-Casas Torres
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | | | - Angelica Judith Granados-López
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | - Yamilé López-Hernández
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
- Laboratorio de Metabolómica de la Unidad Académica de Ciencias Biológicas, CONACyT, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | - Claudia Araceli Reyes-Estrada
- Laboratorio de Patología e Inmunohistoquímica de la Unidad Académica de Medicina Humana de la Universidad Autónoma de Zacatecas, Campus Siglo XXI, Kilómetro 6, Ejido la Escondida, Zacatecas CP 98160, Mexico.
| | - Rosalinda Gutiérrez-Hernández
- Laboratorio de Etnofarmacología Nutrición de la Unidad Académica de Enfermería de la Universidad Autónoma de Zacatecas, Campus Siglo XXI, Kilómetro 6, Ejido la Escondida, Zacatecas CP 98160, Mexico.
| | - Julio Enrique Castañeda-Delgado
- Catedrático-CONACYT, Unidad de Investigación Biomédica de Zacatecas, Instituto Mexicano del Seguro Social, Zacatecas CP 98000, Mexico.
| | - Leticia Ramírez-Hernández
- Unidad Académica de Matemáticas de la Universidad Autónoma de Zacatecas Av. Preparatoria S/N, Zacatecas 98066, México.
| | - José Antonio Varela-Silva
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
| | - Jesús Adrián López
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Av. Preparatoria S/N, Zacatecas 98066, México.
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Jia Y, Sun R, Ding X, Cao C, Yang X. Bisphenol S Triggers the Migration and Invasion of Pheochromocytoma PC12 Cells via Estrogen-Related Receptor α. J Mol Neurosci 2018; 66:188-196. [PMID: 30140998 DOI: 10.1007/s12031-018-1148-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/27/2018] [Indexed: 12/13/2022]
Abstract
Pheochromocytoma (PCC) is a tumor of the adrenal medulla for which surgical resection is the only therapy approach. Risk factors responsible for the tumorigenesis and progression of PCC are not well illustrated. Our present study revealed that an industrial chemical, bisphenol S (BPS), can promote the migration and invasion of PCC PC12 cells, which was evidenced by the upregulation of fibronectin (FN) and matrix metalloproteinases (MMP-2 and MMP-9). The inhibitor of estrogen-related receptor α (ERRα), while not estrogen receptor α/β (ERα/β) or G protein-coupled estrogen receptor (GPER), can attenuate BPS-induced cell migration. Mechanically, BPS can increase the binding between ERRα and promoter of FN1 and then induce the expression of FN in PC12 cells. Further, BPS can induce the expression of miR-10b in PC12 cells via ERRα. The upregulated miR-10b inhibited the expression of KLF4, which can suppress the migration and invasion of cancer cells. BPS can trigger the mRNA and protein expression of ERRα in PC12 cells via a time-dependent manner. Collectively, our study revealed that nanomolar BPS can trigger the migration and invasion of PC12 cells via activation and upregulation of ERRα.
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Affiliation(s)
- Yuefeng Jia
- Department of Urology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Ruixia Sun
- Department of Endocrinology and Metabology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Xuemei Ding
- Department of Surgery, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Caixia Cao
- Department of Endocrinology and Metabology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China.
| | - Xuecheng Yang
- Department of Urology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China.
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Yan W, Yu H, Li W, Li F, Wang S, Yu N, Jiang Q. Plk1 promotes the migration of human lung adenocarcinoma epithelial cells via STAT3 signaling. Oncol Lett 2018; 16:6801-6807. [PMID: 30405824 DOI: 10.3892/ol.2018.9437] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 01/10/2018] [Indexed: 12/13/2022] Open
Abstract
Polo-like kinase (Plk)1 contributes to the development of human cancer via multiple mechanisms, such as promoting the migration of cancer cells. However, the mechanistic basis for the regulation of cell migration by Plk1 remains unknown. To address this question, the present study investigated the effect of Plk1 inhibition on the migration of human lung adenocarcinoma epithelial A549 cells and the molecular factors involved. A549 cells were treated with the Plk1 inhibitor, BI2536, and cell migration was evaluated with the wound-healing assay. The expression of matrix metallopeptidase (MMP)2, vascular endothelial growth factor (VEGF)A, total and phosphorylated signal transducer and activator of transcription (STAT)3 was assessed by western blotting and reverse transcription-polymerase chain reaction following Plk1 knockdown and/or STAT3 overexpression. The interaction between Plk1 and STAT3 was evaluated by co-immunoprecipitation. The levels of MMP2 and VEGFA were decreased by treatment with Plk1 inhibitor. The phosphorylation of STAT3, which acts upstream of MMP2 and VEGFA, was also decreased by Plk1 knockdown, an effect that was abrogated by STAT3 overexpression. In addition, Plk1 was detected to bind with STAT3 either directly or as part of a complex by co-immunoprecipitation experiments. These results indicated that Plk1 may promote the migration of A549 cells via regulation of STAT3 signaling.
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Affiliation(s)
- Weijuan Yan
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Huijie Yu
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Wei Li
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Fengsheng Li
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Sinian Wang
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Nan Yu
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
| | - Qisheng Jiang
- Laboratory of Nuclear and Radiation Damage, The General Hospital of The Second Artillery Corps of Chinese PLA, Beijing 100088, P.R. China
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Salemi R, Falzone L, Madonna G, Polesel J, Cinà D, Mallardo D, Ascierto PA, Libra M, Candido S. MMP-9 as a Candidate Marker of Response to BRAF Inhibitors in Melanoma Patients With BRAFV600E Mutation Detected in Circulating-Free DNA. Front Pharmacol 2018; 9:856. [PMID: 30154717 PMCID: PMC6102751 DOI: 10.3389/fphar.2018.00856] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/16/2018] [Indexed: 12/19/2022] Open
Abstract
The BRAFV600E mutation is associated with melanoma development and its detection in circulating-free DNA cannot be observed in all melanoma patients harboring this mutation in tumor specimens. Beside the circulating-free DNA BRAFV600E mutation, other markers of therapeutic response should be identified. Matrix metalloproteinase-9 (MMP-9) could be one of them as its role as indicator of invasiveness in melanoma have been explored. In this study, MMP-9 was evaluated in melanoma cells after treatment with dabrafenib. In vitro data were validated in 26 melanoma patients, of which 14 treated with BRAF inhibitor alone and 12 treated with both BRAF and MEK inhibitors, by ELISA assay and droplet digital PCR for measuring MMP-9 serum levels and circulating-free DNA BRAFV600E mutation, respectively. Statistical analyses were performed to evaluate the prognostic significance of MMP-9, progression-free survival (PFS) and overall survival (OS) according to the BRAFV600E mutation and MMP-9 levels. The performed analyses showed that MMP-9 and pEKR1-2 were statistically down-regulated in melanoma cells after treatment with dabrafenib. Circulating-free DNA BRAFV600E mutation was detected in 11 out of 26 melanoma patients showing higher levels of MMP-9 compared to those with undetectable BRAFV600E mutation. Furthermore, higher levels of MMP-9 and circulating-free DNA BRAFV600E mutation were associated with lower PFS and OS. Finally, the monitoring of therapy showed that MMP-9 significantly decreased at T1 and T2, but not at T-last, for the patients with detectable circulating-free DNA BRAFV600E mutation. In conclusion, high levels of MMP-9 and circulating-free DNA BRAFV600E mutation are associated with poor PFS and OS. MMP-9 may represent a promising indicator of response to BRAF inhibitors in combination with the detection of BRAFV600E mutation.
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Affiliation(s)
- Rossella Salemi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Luca Falzone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Gabriele Madonna
- Unit of Melanoma, Cancer Immunotherapy and Innovative Therapy, Istituto Nazionale Tumori "Fondazione G. Pascale", Naples, Italy
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Aviano National Cancer Institute, IRCCS, Aviano, Italy
| | - Diana Cinà
- Clinical Pathology Unit, Garibaldi Hospital, Catania, Italy
| | - Domenico Mallardo
- Unit of Melanoma, Cancer Immunotherapy and Innovative Therapy, Istituto Nazionale Tumori "Fondazione G. Pascale", Naples, Italy
| | - Paolo A Ascierto
- Unit of Melanoma, Cancer Immunotherapy and Innovative Therapy, Istituto Nazionale Tumori "Fondazione G. Pascale", Naples, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Research Center for Prevention, Diagnosis and Treatment of Cancer, University of Catania, Catania, Italy
| | - Saverio Candido
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Research Center for Prevention, Diagnosis and Treatment of Cancer, University of Catania, Catania, Italy
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MicroRNA-34a: A Versatile Regulator of Myriads of Targets in Different Cancers. Int J Mol Sci 2017; 18:ijms18102089. [PMID: 29036883 PMCID: PMC5666771 DOI: 10.3390/ijms18102089] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/24/2017] [Accepted: 09/25/2017] [Indexed: 12/22/2022] Open
Abstract
MicroRNA-34a (miR-34a) is a tumor suppressor that has attracted considerable attention in recent years. It modulates cancer cell invasion, metastasis, and drug resistance, and has also been evaluated as a diagnostic and/or prognostic biomarker. A number of targets of miR-34a have been identified, including some other non-coding RNAs, and it is believed that the modulation of these myriads of targets underlines the versatile role of miR-34a in cancer progression and pathogenesis. Seemingly appealing results from preclinical studies have advocated the testing of miR-34a in clinical trials. However, the results obtained are not very encouraging and there is a need to re-interpret how miR-34a behaves in a context dependent manner in different cancers. In this review, we have attempted to summarize the most recent evidence related to the regulation of different genes and non-coding RNAs by miR-34a and the advances in the field of nanotechnology for the targeted delivery of miR-34a-based therapeutics and mimics. With the emergence of data that contradicts miR-34a’s tumor suppressive function, it is important to understand miR-34a’s precise functioning, with the aim to establish its role in personalized medicine and to apply this knowledge for the identification of individual patients that are likely to benefit from miR-34a-based therapy.
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