1
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Jacob JR, Palanichamy K, Chakravarti A. Antipsychotics possess anti-glioblastoma activity by disrupting lysosomal function and inhibiting oncogenic signaling by stabilizing PTEN. Cell Death Dis 2024; 15:414. [PMID: 38871731 PMCID: PMC11176297 DOI: 10.1038/s41419-024-06779-3] [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: 10/02/2023] [Revised: 05/22/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024]
Abstract
The repurposing of medications developed for central nervous system (CNS) disorders, possessing favorable safety profiles and blood-brain barrier permeability, represents a promising strategy for identifying new therapies to combat glioblastoma (GBM). In this study, we investigated the anti-GBM activity of specific antipsychotics and antidepressants in vitro and in vivo. Our results demonstrate that these compounds share a common mechanism of action in GBM, disrupting lysosomal function and subsequently inducing lysosomal membrane rupture and cell death. Notably, PTEN intact GBMs possess an increased sensitivity to these compounds. The inhibition of lysosomal function synergized with inhibitors targeting the EGFR-PI3K-Akt pathway, leading to an energetic and antioxidant collapse. These findings provide a foundation for the potential clinical application of CNS drugs in GBM treatment. Additionally, this work offers critical insights into the mechanisms and determinants of cytotoxicity for drugs currently undergoing clinical trials as repurposing agents for various cancers, including Fluoxetine, Sertraline, Thioridazine, Chlorpromazine, and Fluphenazine.
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Affiliation(s)
- John Ryan Jacob
- Department of Radiation Oncology, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Kamalakannan Palanichamy
- Department of Radiation Oncology, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, OH, 43210, USA.
| | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, OH, 43210, USA
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2
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Schulz JA, Hartz AMS, Bauer B. ABCB1 and ABCG2 Regulation at the Blood-Brain Barrier: Potential New Targets to Improve Brain Drug Delivery. Pharmacol Rev 2023; 75:815-853. [PMID: 36973040 PMCID: PMC10441638 DOI: 10.1124/pharmrev.120.000025] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/29/2023] Open
Abstract
The drug efflux transporters ABCB1 and ABCG2 at the blood-brain barrier limit the delivery of drugs into the brain. Strategies to overcome ABCB1/ABCG2 have been largely unsuccessful, which poses a tremendous clinical problem to successfully treat central nervous system (CNS) diseases. Understanding basic transporter biology, including intracellular regulation mechanisms that control these transporters, is critical to solving this clinical problem.In this comprehensive review, we summarize current knowledge on signaling pathways that regulate ABCB1/ABCG2 at the blood-brain barrier. In Section I, we give a historical overview on blood-brain barrier research and introduce the role that ABCB1 and ABCG2 play in this context. In Section II, we summarize the most important strategies that have been tested to overcome the ABCB1/ABCG2 efflux system at the blood-brain barrier. In Section III, the main component of this review, we provide detailed information on the signaling pathways that have been identified to control ABCB1/ABCG2 at the blood-brain barrier and their potential clinical relevance. This is followed by Section IV, where we explain the clinical implications of ABCB1/ABCG2 regulation in the context of CNS disease. Lastly, in Section V, we conclude by highlighting examples of how transporter regulation could be targeted for therapeutic purposes in the clinic. SIGNIFICANCE STATEMENT: The ABCB1/ABCG2 drug efflux system at the blood-brain barrier poses a significant problem to successful drug delivery to the brain. The article reviews signaling pathways that regulate blood-brain barrier ABCB1/ABCG2 and could potentially be targeted for therapeutic purposes.
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Affiliation(s)
- Julia A Schulz
- Department of Pharmaceutical Sciences, College of Pharmacy (J.A.S., B.B.), Sanders-Brown Center on Aging and Department of Pharmacology and Nutritional Sciences, College of Medicine (A.M.S.H.), University of Kentucky, Lexington, Kentucky
| | - Anika M S Hartz
- Department of Pharmaceutical Sciences, College of Pharmacy (J.A.S., B.B.), Sanders-Brown Center on Aging and Department of Pharmacology and Nutritional Sciences, College of Medicine (A.M.S.H.), University of Kentucky, Lexington, Kentucky
| | - Björn Bauer
- Department of Pharmaceutical Sciences, College of Pharmacy (J.A.S., B.B.), Sanders-Brown Center on Aging and Department of Pharmacology and Nutritional Sciences, College of Medicine (A.M.S.H.), University of Kentucky, Lexington, Kentucky
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3
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Pourshafie N, Masati E, Lopez A, Bunker E, Snyder A, Edwards NA, Winkelsas AM, Fischbeck KH, Grunseich C. Altered SYNJ2BP-mediated mitochondrial-ER contacts in motor neuron disease. Neurobiol Dis 2022; 172:105832. [PMID: 35907632 DOI: 10.1016/j.nbd.2022.105832] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/01/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
Synaptojanin 2 binding protein (SYNJ2BP) is an outer mitochondrial membrane protein with a cytosolic PDZ domain that functions as a cellular signaling hub. Few studies have evaluated its role in disease. Here we use induced pluripotent stem cell (iPSC)-derived motor neurons and post-mortem tissue from patients with two hereditary motor neuron diseases, spinal and bulbar muscular atrophy (SBMA) and amyotrophic lateral sclerosis type 4 (ALS4), and show that SYNJ2BP expression is increased in diseased motor neurons. Similarly, we show that SYNJ2BP expression increases in iPSC-derived motor neurons undergoing stress. Using proteomic analysis, we found that elevated SYNJ2BP alters the cellular distribution of mitochondria and increases mitochondrial-ER membrane contact sites. Furthermore, decreasing SYNJ2BP levels improves mitochondrial oxidative function in the diseased motor neurons. Together, our observations offer new insight into the molecular pathology of motor neuron disease and the role of SYNJ2BP in mitochondrial dysfunction.
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Affiliation(s)
- Naemeh Pourshafie
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Ester Masati
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Amber Lopez
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Eric Bunker
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Allison Snyder
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Nancy A Edwards
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Audrey M Winkelsas
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Kenneth H Fischbeck
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Christopher Grunseich
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
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4
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Sharma U, Barwal TS, Murmu M, Acharya V, Pant N, Dey D, Vivek, Gautam A, Bazala S, Singh I, Azzouz F, Bishayee A, Jain A. Clinical potential of long non-coding RNA LINC01133 as a promising biomarker and therapeutic target in cancers. Biomark Med 2022; 16:349-369. [PMID: 35195032 DOI: 10.2217/bmm-2021-0682] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recently, long intergenic non-protein coding RNA 01133 (LINC01133) was identified as a novel transcript in cancers. It modulates various hallmarks of cancers and acts as oncogenic in some cancers while tumor-suppressive in others. Furthermore, the expression of LINC01133 correlates with tumor size, advanced tumor node metastasis stage and lymphatic node metastasis, Ki-67 levels and overall survival of patients. Herein, the authors provide an in-depth analysis describing how LINC01133 modulates the multiple cancer-associated signaling pathways and the pathogenesis of various malignancies and treatment regimens. Based on the role played by LINC01133, the authors propose LINC01133 as both a potential biomarker and a therapeutic target in cancer.
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Affiliation(s)
- Uttam Sharma
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Tushar Singh Barwal
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Masang Murmu
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Varnali Acharya
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Neha Pant
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Damayanti Dey
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Vivek
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Ashima Gautam
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Sonali Bazala
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Ipsa Singh
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
| | - Farah Azzouz
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Ghudda, 151 401, Punjab, India
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5
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DING H, SHI Z, ZHANG L, GAO N, CHENG X, LIN H, ZHANG Z, ZHANG G. Progranulin (PGRN) is serves as an inflammation-response biomarker and promotes lung damage in burn-induced Sepsis via the SIRT1 Pathways by ROS. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.36720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Hui DING
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Zhaoling SHI
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Lu ZHANG
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Nairong GAO
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Xiaoning CHENG
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Haibo LIN
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Zhihong ZHANG
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
| | - Guocheng ZHANG
- The Second Hospital Affiated Shaanxi University of Chinese Medicine, China
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6
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Li Z, Zhao S, Zhu S, Fan Y. MicroRNA-153-5p promotes the proliferation and metastasis of renal cell carcinoma via direct targeting of AGO1. Cell Death Dis 2021; 12:33. [PMID: 33414440 PMCID: PMC7791042 DOI: 10.1038/s41419-020-03306-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) have been demonstrated to affect the biological processes of cancers and showed great potential for prognostic biomarkers. In this study, we screened differentially expressed miRNAs in ccRCC based on three dimensions of metastasis, prognosis, and differential expression compared to normal tissue using bioinformatics algorithms. MiR-153-5p was identified as a candidate miRNA to promote ccRCC occurrence and progression. Clinically, we found that miR-153-5p was significantly upregulated and related to unfavorable clinical features in ccRCC. Besides, miR-153-5p served as an independent prognostic biomarker. Functionally, miR-153-5p depletion remarkably inhibited the proliferation and metastasis of ccRCC via the phosphatidylinositol 3-kinase (PI3K)/Akt signaling. Furthermore, AGO1 was proved to be a direct target of miR-153-5p. AGO1 is associated with favorable clinical features and exhibited independent prognostic value in ccRCC. Besides, we observed that AGO1 knockdown significantly promoted tumor proliferation and metastasis. Downregulation of AGO1 partly abolished the oncogenic effects of miR-153-5p knockdown. Furthermore, miR-153-5p combined with AGO1 showed more robust prognostic significance in ccRCC. In conclusion, we found that the newly identified miR-153-5p/AGO1 axis was responsible for tumor occurrence and progression via PI3K/Akt signaling, which may therefore provide promising therapeutic targets and prognostic biomarkers for patients with ccRCC.
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Affiliation(s)
- Zeyan Li
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.,Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Shuo Zhao
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.,Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Shiqin Zhu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
| | - Yidong Fan
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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7
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Aquila S, Santoro M, Caputo A, Panno ML, Pezzi V, De Amicis F. The Tumor Suppressor PTEN as Molecular Switch Node Regulating Cell Metabolism and Autophagy: Implications in Immune System and Tumor Microenvironment. Cells 2020; 9:cells9071725. [PMID: 32708484 PMCID: PMC7408239 DOI: 10.3390/cells9071725] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/11/2022] Open
Abstract
Recent studies conducted over the past 10 years evidence the intriguing role of the tumor suppressor gene Phosphatase and Tensin Homolog deleted on Chromosome 10 PTEN in the regulation of cellular energy expenditure, together with its capability to modulate proliferation and survival, thus expanding our knowledge of its physiological functions. Transgenic PTEN mice models are resistant to oncogenic transformation, present decreased adiposity and reduced cellular glucose and glutamine uptake, together with increased mitochondrial oxidative phosphorylation. These acquisitions led to a novel understanding regarding the role of PTEN to counteract cancer cell metabolic reprogramming. Particularly, PTEN drives an “anti-Warburg state” in which less glucose is taken up, but it is more efficiently directed to the mitochondrial Krebs cycle. The maintenance of cellular homeostasis together with reduction of metabolic stress are controlled by specific pathways among which autophagy, a catabolic process strictly governed by mTOR and PTEN. Besides, a role of PTEN in metabolic reprogramming and tumor/stroma interactions in cancer models, has recently been established. The genetic inactivation of PTEN in stromal fibroblasts of mouse mammary glands, accelerates breast cancer initiation and progression. This review will discuss our novel understanding in the molecular connection between cell metabolism and autophagy by PTEN, highlighting novel implications regarding tumor/stroma/immune system interplay. The newly discovered action of PTEN opens innovative avenues for investigations relevant to counteract cancer development and progression.
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Affiliation(s)
- Saveria Aquila
- Department of Pharmacy, Health and Nutritional Sciences; University of Calabria, 87036 Rende, Italy; (S.A.); (M.S.); (M.L.P.); (V.P.)
- Health Center, University of Calabria, 87036 Rende, Italy
| | - Marta Santoro
- Department of Pharmacy, Health and Nutritional Sciences; University of Calabria, 87036 Rende, Italy; (S.A.); (M.S.); (M.L.P.); (V.P.)
- Health Center, University of Calabria, 87036 Rende, Italy
| | - Annalisa Caputo
- Faculty of Medicine and Surgery, Catholic University of the Sacred Heart, 00168 Rome, Italy;
| | - Maria Luisa Panno
- Department of Pharmacy, Health and Nutritional Sciences; University of Calabria, 87036 Rende, Italy; (S.A.); (M.S.); (M.L.P.); (V.P.)
| | - Vincenzo Pezzi
- Department of Pharmacy, Health and Nutritional Sciences; University of Calabria, 87036 Rende, Italy; (S.A.); (M.S.); (M.L.P.); (V.P.)
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences; University of Calabria, 87036 Rende, Italy; (S.A.); (M.S.); (M.L.P.); (V.P.)
- Health Center, University of Calabria, 87036 Rende, Italy
- Correspondence:
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8
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Hartmann C, Schwietzer YA, Kummer D, Kirschnick N, Hoppe E, Thüring EM, Glaesner-Ebnet M, Brinkmann F, Gerke V, Reuter S, Nakayama M, Ebnet K. The mitochondrial outer membrane protein SYNJ2BP interacts with the cell adhesion molecule TMIGD1 and can recruit it to mitochondria. BMC Mol Cell Biol 2020; 21:30. [PMID: 32303178 PMCID: PMC7164261 DOI: 10.1186/s12860-020-00274-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/06/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Transmembrane and immunoglobulin domain-containing protein 1 (TMIGD1) is a recently identified cell adhesion molecule which is predominantly expressed by epithelial cells of the intestine and the kidney. Its expression is downregulated in both colon and renal cancer suggesting a tumor suppressive activity. The function of TMIGD1 at the cellular level is largely unclear. Published work suggests a protective role of TMIGD1 during oxidative stress in kidney epithelial cells, but the underlying molecular mechanisms are unknown. RESULTS In this study, we address the subcellular localization of TMIGD1 in renal epithelial cells and identify a cytoplasmic scaffold protein as interaction partner of TMIGD1. We find that TMIGD1 localizes to different compartments in renal epithelial cells and that this localization is regulated by cell confluency. Whereas it localizes to mitochondria in subconfluent cells it is localized at cell-cell contacts in confluent cells. We find that cell-cell contact localization is regulated by N-glycosylation and that both the extracellular and the cytoplasmic domain contribute to this localization. We identify Synaptojanin 2-binding protein (SYNJ2BP), a PDZ domain-containing cytoplasmic protein, which localizes to both mitochondria and the plasma membrane, as interaction partner of TMIGD1. The interaction of TMIGD1 and SYNJ2BP is mediated by the PDZ domain of SYNJ2BP and the C-terminal PDZ domain-binding motif of TMIGD1. We also find that SYNJ2BP can actively recruit TMIGD1 to mitochondria providing a potential mechanism for the localization of TMIGD1 at mitochondria. CONCLUSIONS This study describes TMIGD1 as an adhesion receptor that can localize to both mitochondria and cell-cell junctions in renal epithelial cells. It identifies SYNJ2BP as an interaction partner of TMIGD1 providing a potential mechanism underlying the localization of TMIGD1 at mitochondria. The study thus lays the basis for a better understanding of the molecular function of TMIGD1 during oxidative stress regulation.
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Affiliation(s)
- Christian Hartmann
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Ysabel Alessa Schwietzer
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Daniel Kummer
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Interdisciplinary Clinical Research Center (IZKF), University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Nils Kirschnick
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Esther Hoppe
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Eva-Maria Thüring
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Mark Glaesner-Ebnet
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Frauke Brinkmann
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany.,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Volker Gerke
- Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany
| | - Stefan Reuter
- Department of Medicine D, Division of General Internal Medicine, Nephrology and Rheumatology, University Hospital of Münster, 48149, Münster, Germany
| | - Masanori Nakayama
- Laboratory for Cell Polarity and Organogenesis, Max-Planck-Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
| | - Klaus Ebnet
- Institute-Associated Research Group "Cell adhesion and cell polarity", University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany. .,Institute of Medical Biochemistry, ZMBE, University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany. .,Interdisciplinary Clinical Research Center (IZKF), University of Münster, Von-Esmarch-Str. 56, 48149, Münster, Germany. .,Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), University of Münster, 48419, Münster, Germany.
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9
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Kotawong K, Chaijaroenkul W, Roytrakul S, Phaonakrop N, Na-Bangchang K. Proteomics Analysis for Identification of Potential Cell Signaling Pathways and Protein Targets of Actions of Atractylodin and β-Eudesmol Against Cholangiocarcinoma. Asian Pac J Cancer Prev 2020; 21:621-628. [PMID: 32212786 PMCID: PMC7437331 DOI: 10.31557/apjcp.2020.21.3.621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 03/06/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE The study aimed to identify potential cell signaling pathways and protein targets of actions of atractylodin and β-eudesmol in cholangiocarcinoma, the two active compounds isolated from Atracylodes lancea using proteomics approach. METHOD The cholangiocarcinoma cell line, CL-6, was treated with each compound for 3 and 6 hours, and the proteins from both intra- and extracellular components were extracted. LC-MS/MS was applied following the separation of the extract proteins by SDS-PAGE and digestion with trypsin. Signaling pathways and protein expression were analyzed by MASCOT and STITCH software. RESULTS A total of 4,323 and 4,318 proteins were identified from intra- and extracellular components, respectively. Six and 4 intracellular proteins were linked with the signaling pathways (apoptosis, cell cycle control, and PI3K-AKT) of atractylodin and β-eudesmol, respectively. Four and 3 extracellular proteins were linked with the signaling pathways (NF-κB and PI3K-AKT) of atractylodin and β-eudesmol, respectively. CONCLUSION In conclusion, a total of 17 proteins associated with four cell signaling pathways that could be potential molecular targets of anticholangiocarcinoma action of atractylodin and β-eudesmol were identified through the application of proteomics approach.
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Affiliation(s)
- Kanawut Kotawong
- Chulabhorn International College of Medicine, Thammasat University, Paholyothin Road, Klonglung,
| | - Wanna Chaijaroenkul
- Chulabhorn International College of Medicine, Thammasat University, Paholyothin Road, Klonglung,
| | - Sittiruk Roytrakul
- Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathumthani Thailand.
| | - Narumon Phaonakrop
- Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathumthani Thailand.
| | - Kesara Na-Bangchang
- Chulabhorn International College of Medicine, Thammasat University, Paholyothin Road, Klonglung,
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10
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Cheng CD, Dong YF, Niu WX, Niu CS. HAUSP promoted the growth of glioma cells in vitro and in vivo via stabilizing NANOG. Pathol Res Pract 2020; 216:152883. [PMID: 32088087 DOI: 10.1016/j.prp.2020.152883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 01/23/2020] [Accepted: 02/12/2020] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To investigate the role and mechanisms of HAUSP (Herpesvirus Associated Ubiquitin Specific Protease) and NANOG in pathogenesis of malignant human gliomas progression. METHODS Lentivirus-mediated HAUSP over-expression and RNAiHAUSP mediated HAUSP down-regulation were established in the glioma cells (U87 and U251 cell lines). Firstly, Real-time qPCR, western-blot (WB) and immunofluorescence staining were performed to detect mRNA levels, protein expressions and deposition of HAUSP and NANOG in the glioma cells, respectively. Then cell proliferation, invasion, apoptosis and xenograft tumor growth in nude mice were assessed by using cell counting kit-8 (CCK-8) assay, transwell assay, flow cytometry (FCM) and Hematoxylin-Eosin (HE) staining. RESULTS We first demonstrated HAUSP was significantly increased in lentivirus- mediated HAUSP over-expression cells compared to the Control group. HAUSP over-expression could upregulate genes involved in proliferation and invasion such as NANOG. However, the mRNA of NANOG had no significant changes. Similarly, in RNAiHAUSP mediated HAUSP down-regulation group, HAUSP were significantly decreased compared to the Control group. Simultaneously, NANOG protein were decreased significantly, which decreased the proliferation and invasion, increased the apoptosis rate of glioma cells. Finally, low expression of HAUSP could suppress xenograft tumors growth in nude mice in different periods. CONCLUSION This study revealed that HAUSP-NANOG pathway is a key target to inhibit glioma cells proliferation, and NANOG play important role in the formation and evolution of glioma cells. The regulation of HAUSP could change the biological activity of glioma cells through regulate NANOG expression.
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Affiliation(s)
- Chuan-Dong Cheng
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230036, PR China; Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230036, PR China; Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui 230031, PR China
| | - Yong-Fei Dong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230036, PR China; Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui 230031, PR China
| | - Wan-Xiang Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230036, PR China; Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui 230031, PR China
| | - Chao-Shi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230036, PR China; Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui 230031, PR China.
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11
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Li C, Xu Y, Xin P, Zheng Y, Zhu X. Role and mechanism of PTEN in Burkitt's lymphoma. Oncol Rep 2020; 43:481-490. [PMID: 31922234 PMCID: PMC6967105 DOI: 10.3892/or.2020.7457] [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: 07/14/2019] [Accepted: 11/22/2019] [Indexed: 11/29/2022] Open
Abstract
The aim of the present study was to explore the possible mechanisms of phosphatase and tensin homolog (PTEN) in the pathogenesis of Burkitt's lymphoma, and provide novel information that can be used in the targeted treatment of this disease. PTEN lentiviral overexpression vector and short-hairpin PTEN silencing vectors were constructed. The effect of PTEN on the growth and proliferation of CA46 and RAJI cells was analyzed using a Cell Counting Kit-8 assay. Apoptosis was detected by Hoechst 33342 and propidium iodide double staining. Flow cytometry was used to analyze the cell cycle. A Transwell chamber was used to detect cell migration and invasion abilities. Western blot analysis was used to detect related protein changes. The mechanism of the effect of PTEN on the biological characteristics of Burkitt's lymphoma cells was subsequently analyzed. The results revealed that PTEN inhibited the proliferation of CA46 and RAJI cells by downregulating the expression of p-AKT, It was indicated that the upregulation of proapoptotic proteins (including Bad and Bax) induced apoptosis, regulated cyclin (including P53, P21, CDK4, CDK6, cyclin D3 and cyclin H) to inhibit cell cycle progression, and mediated epithelial-mesenchymal transition-like cell markers (including E-cadherin, N-cadherin, β-catenin, TCF-8, vimentin, Slug and Snail) to inhibit cell migration and invasion. In conclusion, the tumor-suppressor gene PTEN inhibited the phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) signaling pathway and inhibited the proliferation and migration of Burkitt's lymphoma cells, induced apoptosis and cell cycle arrest, thus playing a crucial role in the pathogenesis of Burkitt's lymphoma.
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Affiliation(s)
- Chuntuan Li
- Department of Haematology, First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Yahong Xu
- Department of Haematology, First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Pengliang Xin
- Department of Haematology, First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Yan Zheng
- Department of Haematology, First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Xiongpeng Zhu
- Department of Haematology, First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
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12
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Zhou J, Cheng H, Wang Z, Chen H, Suo C, Zhang H, Zhang J, Yang Y, Geng L, Gu M, Tan R. Bortezomib attenuates renal interstitial fibrosis in kidney transplantation via regulating the EMT induced by TNF-α-Smurf1-Akt-mTOR-P70S6K pathway. J Cell Mol Med 2019; 23:5390-5402. [PMID: 31140729 PMCID: PMC6653435 DOI: 10.1111/jcmm.14420] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 12/23/2022] Open
Abstract
Allograft interstitial fibrosis was characterized by massive extracellular matrix deposition caused by activated fibroblasts and myofibroblasts. Epithelial‐mesenchymal transition (EMT) is recognized as an important source of myofibroblasts contributing to the pathogenesis of allograft interstitial fibrosis. Smad ubiquitination regulatory factor 1 (Smurf1) has been recently reported to be involved in the progression of EMT. Our study was to detect the effect of Bortezomib and Smurf1 in the EMT and allograft interstitial fibrosis. Biomarkers of EMT, as well as Smurf1, were examined in human proximal tubular epithelial cells (HK‐2) treated with tumour necrosis factor‐alpha (TNF‐α) in various doses or at various time points by Western Blotting or qRT‐PCR. We knockdown or overexpressed Smurf1 in HK‐2 cells. Furthermore, rat renal transplant model was established and intervened by Bortezomib. Allograft tissues from human and rats were also collected and prepared for HE, Masson's trichrome, immunohistochemical staining and western blotting assays. As a result, we found that TNF‐α significantly promoted the development of EMT in a time‐dependent and dose‐dependent manner through Smurf1/Akt/mTOR/P70S6K signalling pathway. More importantly, Bortezomib alleviated the progression of EMT and allograft interstitial fibrosis in vivo and in vitro by inhibiting the production of TNF‐α and expression of Smurf1. In conclusion, Smurf1 plays a critical role in the development of EMT induced by TNF‐α. Bortezomib can attenuate the Sumrf1‐mediated progression of EMT and renal allograft interstitial fibrosis, which could be suggested as a novel choice for the prevention and treatment of renal allograft interstitial fibrosis.
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Affiliation(s)
- Jiajun Zhou
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Hong Cheng
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Zijie Wang
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Hao Chen
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chuanjian Suo
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Hengcheng Zhang
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jiayi Zhang
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yanhao Yang
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Liang Geng
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ming Gu
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ruoyun Tan
- Department of Urology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
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13
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Jiang Y, Su S, Zhang Y, Qian J, Liu P. Control of mTOR signaling by ubiquitin. Oncogene 2019; 38:3989-4001. [PMID: 30705402 PMCID: PMC6621562 DOI: 10.1038/s41388-019-0713-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 12/21/2022]
Abstract
The evolutionarily conserved mTOR signaling pathway plays essential roles in cell growth, proliferation, metabolism and responses to cellular stresses. Hyperactivation of the mTOR signaling is observed in virtually all solid tumors and has been an attractive drug target. In addition to changes at genetic levels, aberrant activation of the mTOR signaling is also a result from dysregulated posttranslational modifications on key pathway members, such as phosphorylation that has been extensively studied. Emerging evidence also supports a critical role for ubiquitin-mediated modifications in dynamically regulating the mTOR signaling pathway, while a comprehensive review for relevant studies is missing. In this review, we will summarize characterized ubiquitination events on major mTOR signaling components, their modifying E3 ubiquitin ligases, deubiquitinases and corresponding pathophysiological functions. We will also reveal methodologies that have been used to identify E3 ligases or DUBs to facilitate the search for yet-to-be discovered ubiquitin-mediated regulatory mechanisms in mTOR signaling. We hope that our review and perspectives provide rationales and strategies to target ubiquitination for inhibiting mTOR signaling to treat human diseases.
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Affiliation(s)
- Yao Jiang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022, Wuhan, China
- Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Siyuan Su
- Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Yanqiong Zhang
- Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jiayi Qian
- Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Pengda Liu
- Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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14
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Radisavljevic Z. Lysosome activates AKT inducing cancer and metastasis. J Cell Biochem 2019; 120:12123-12127. [DOI: 10.1002/jcb.28752] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/08/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Ziv Radisavljevic
- Department of Surgery Brigham and Women's Hospital, Harvard Medical School Boston Massachusetts
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15
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Liu J, Ke F, Cheng H, Zhou J. Traditional Chinese medicine as targeted treatment for epithelial-mesenchymal transition-induced cancer progression. J Cell Biochem 2019; 120:1068-1079. [PMID: 30431663 DOI: 10.1002/jcb.27588] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 08/08/2018] [Indexed: 01/24/2023]
Abstract
The epithelial-mesenchymal transition (EMT) program, which loosens cell-cell adhesion complexes, endows cells with enhanced migratory and invasive properties. Furthermore, this process facilitates both the development of drug resistance and immunosuppression by tumor cells, which preclude the successful treatment of cancer. Recent research has demonstrated that many signaling pathways are involved in EMT progression. In addition, cancer stem cells (CSCs), vasculogenic mimicry (VM) and the tumor-related immune microenvironment all play important roles in tumor formation. However, there are few reports on the relationships between EMT and these factors. In addition, in recent years, traditional Chinese medicine (TCM) has developed a unique system for treating cancer. In this review, we summarize the crucial signaling pathways associated with the EMT process in cancer patients and discuss the interconnections between EMT and other molecular factors (such as CSCs, VM, and the tumor-related immune microenvironment). We attempt to identify common regulators that might be potential therapeutic targets to thereby optimize tumor treatment. In addition, we outline recent research on TCM approaches that target EMT and thereby provide a foundation for further research on the exact mechanisms by which TCMs affect EMT in cancer.
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Affiliation(s)
- Jianrong Liu
- School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Fei Ke
- Department of Pathology, Jiangsu Province Hospital of TCM, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Haibo Cheng
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing, China
| | - Jinrong Zhou
- School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
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16
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Hernández-Cáceres MP, Toledo-Valenzuela L, Díaz-Castro F, Ávalos Y, Burgos P, Narro C, Peña-Oyarzun D, Espinoza-Caicedo J, Cifuentes-Araneda F, Navarro-Aguad F, Riquelme C, Troncoso R, Criollo A, Morselli E. Palmitic Acid Reduces the Autophagic Flux and Insulin Sensitivity Through the Activation of the Free Fatty Acid Receptor 1 (FFAR1) in the Hypothalamic Neuronal Cell Line N43/5. Front Endocrinol (Lausanne) 2019; 10:176. [PMID: 30972025 PMCID: PMC6446982 DOI: 10.3389/fendo.2019.00176] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
Chronic consumption of high fat diets (HFDs), rich in saturated fatty acids (SatFAs) like palmitic acid (PA), is associated with the development of obesity and obesity-related metabolic diseases such as type II diabetes mellitus (T2DM). Previous studies indicate that PA accumulates in the hypothalamus following consumption of HFDs; in addition, HFDs consumption inhibits autophagy and reduces insulin sensitivity. Whether malfunction of autophagy specifically in hypothalamic neurons decreases insulin sensitivity remains unknown. PA does activate the Free Fatty Acid Receptor 1 (FFAR1), also known as G protein-coupled receptor 40 (GPR40); however, whether FFAR1 mediates the effects of PA on hypothalamic autophagy and insulin sensitivity has not been shown. Here, we demonstrate that exposure to PA inhibits the autophagic flux and reduces insulin sensitivity in a cellular model of hypothalamic neurons (N43/5 cells). Furthermore, we show that inhibition of autophagy and the autophagic flux reduces insulin sensitivity in hypothalamic neuronal cells. Interestingly, the inhibition of the autophagic flux, and the reduction in insulin sensitivity are prevented by pharmacological inhibition of FFAR1. Our findings show that dysregulation of autophagy reduces insulin sensitivity in hypothalamic neuronal cells. In addition, our data suggest FFAR1 mediates the ability of PA to inhibit autophagic flux and reduce insulin sensitivity in hypothalamic neuronal cells. These results reveal a novel cellular mechanism linking PA-rich diets to decreased insulin sensitivity in the hypothalamus and suggest that hypothalamic autophagy might represent a target for future T2DM therapies.
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Affiliation(s)
- María Paz Hernández-Cáceres
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Lilian Toledo-Valenzuela
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Francisco Díaz-Castro
- Autophagy Research Center, Santiago, Chile
- Research Laboratory of Nutrition and Physical Activity, Institute of Nutrition and Food Technology, Universidad de Chile, Santiago, Chile
| | - Yenniffer Ávalos
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Paulina Burgos
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Carla Narro
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Daniel Peña-Oyarzun
- Autophagy Research Center, Santiago, Chile
- Advanced Center for Chronic Diseases and Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
| | - Jasson Espinoza-Caicedo
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Flavia Cifuentes-Araneda
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Fernanda Navarro-Aguad
- Laboratory of Differentiation and Pathology, Department of Cell and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cecilia Riquelme
- Laboratory of Differentiation and Pathology, Department of Cell and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Autophagy Research Center, Santiago, Chile
- Research Laboratory of Nutrition and Physical Activity, Institute of Nutrition and Food Technology, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases and Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
| | - Alfredo Criollo
- Autophagy Research Center, Santiago, Chile
- Advanced Center for Chronic Diseases and Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
| | - Eugenia Morselli
- Laboratory of Autophagy and Metabolism, Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
- *Correspondence: Eugenia Morselli
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Peng L, Guo JC, Long L, Pan F, Zhao JM, Xu LY, Li EM. A Novel Clinical Six-Flavoprotein-Gene Signature Predicts Prognosis in Esophageal Squamous Cell Carcinoma. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3869825. [PMID: 31815134 PMCID: PMC6878914 DOI: 10.1155/2019/3869825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/23/2019] [Accepted: 10/04/2019] [Indexed: 02/05/2023]
Abstract
Flavoproteins and their interacting proteins play important roles in mitochondrial electron transport, fatty acid degradation, and redox regulation. However, their clinical significance and function in esophageal squamous cell carcinoma (ESCC) are little known. Here, using survival analysis and machine learning, we mined 179 patient expression profiles with ESCC in GSE53625 from the Gene Expression Omnibus (GEO) database and constructed a signature consisting of two flavoprotein genes (GPD2 and PYROXD2) and four flavoprotein interacting protein genes (CTTN, GGH, SRC, and SYNJ2BP). Kaplan-Meier analysis revealed the signature was significantly associated with the survival of ESCC patients (mean survival time: 26.77 months in the high-risk group vs. 54.97 months in the low-risk group, P < 0.001, n = 179), and time-dependent ROC analysis demonstrated that the six-gene signature had good predictive ability for six-year survival for ESCC (AUC = 0.86, 95% CI: 0.81-0.90). We then validated its prediction performance in an independent set by RT-PCR (mean survival: 15.73 months in the high-risk group vs. 21.1 months in the low-risk group, P=0.032, n = 121). Furthermore, RNAi-mediated knockdown of genes in the flavoprotein signature led to decreased proliferation and migration of ESCC cells. Taken together, CTTN, GGH, GPD2, PYROXD2, SRC, and SYNJ2BP have an important clinical significance for prognosis of ESCC patients, suggesting they are efficient prognostic markers and potential targets for ESCC therapy.
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Affiliation(s)
- Liu Peng
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Jin-Cheng Guo
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Lin Long
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Feng Pan
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Jian-Mei Zhao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Li-Yan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - En-Min Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, China
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Tetrandrine-Induced Autophagy in MDA-MB-231 Triple-Negative Breast Cancer Cell through the Inhibition of PI3K/AKT/mTOR Signaling. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7517431. [PMID: 30713576 PMCID: PMC6332987 DOI: 10.1155/2019/7517431] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/24/2018] [Accepted: 12/03/2018] [Indexed: 12/13/2022]
Abstract
The present study examined the effects of tetrandrine suppressing proliferation, targeting LC3, p62, and Beclin-1 autophagy genes by inhibiting PI3K/AKT/mTOR signaling in Triple-negative breast cancer (TNBC) MDA-MB-231 cell. Cell viability and apoptosis were evaluated by MTT and Annexin-V/PI double staining. Cytotoxicity was determined with LDH assay. Western Blot and Immunofluorescence were used to measure the protein levels of p62/SQSTM1, Beclin1, LC3-II/LC3-I, and PTEN/PI3K/AKT/mTOR signaling. Results showed that tetrandrine inhibited the MDA-MB-231 cell proliferation and induced the apoptosis. Tetrandrine at doses of 12.8, 16.1, and 25.7μmol/L showed significant cytotoxicity on MDA-MB-231 cells (p<0.01). Tetrandrine induced MDA-MB-231 cell autophagy by decreasing p62/SQSTM1 expression, improving the expression of Beclin1 and LC3-II/LC3-I (p<0.01), inhibiting the PI3K/AKT /mTOR pathway by downregulating the expression of p-AKT ser473/AKT, p-PI3K/PI3K p110α, and p-mTOR ser2448/mTOR and upregulating PTEN expression. These findings revealed that tetrandrine could suppress proliferation and induce autophagy in MDA-MB-231 cell by inhibiting the PI3K/AKT/mTOR pathway and might be a promising anti-triple-negative breast cancer drug.
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Zheng YF, Zhang XY, Bu YZ. LINC01133 aggravates the progression of hepatocellular carcinoma by activating the PI3K/AKT pathway. J Cell Biochem 2018; 120:4172-4179. [PMID: 30548306 DOI: 10.1002/jcb.27704] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/27/2018] [Indexed: 01/01/2023]
Abstract
LncRNAs exhibit crucial roles in various pathological diseases, including hepatocellular carcinoma (HCC). Therefore, it is significant to recognize the dysregulated lncRNAs in HCC progression. Recently, LINC01133 has been identified in several tumors. However, the biological role of LINC01133 in HCC remains poorly understood. Currently, we focused on the function of LINC01133 in HCC development. We observed that LINC01133 was significantly increased in HCC cells including HepG2, Hep3B, MHCC-97L, SK-Hep-1, and MHCC-97H cells compared with the normal human liver cell line HL-7702. In addition, PI3K/AKT signaling was highly activated in HCC cells. Knockdown of LINC01133 was able to inhibit HCC cell proliferation, cell colony formation, cell apoptosis, and blocked cell cycle arrest in the G1 phase. For another, downregulation of LINC01133 repressed HCC cell migration and invasion. Subsequently, the PI3K/AKT signaling pathway was strongly suppressed by silence of LINC01133 in Hep3B and HepG2 cells. Then, in vivo tumor xenografts models were established using Hep3B cells to explore the function of LINC01133 in HCC progression. Consistently, our study indicated that knockdown of LINC01133 dramatically repressed HCC tumor progression through targeting the PI3K/AKT pathway in vivo. Taken these together, we revealed that LINC01133 contributed to HCC progression by activating the PI3K/AKT pathway.
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Affiliation(s)
- Yong-Fa Zheng
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiao-Yu Zhang
- Division of Gastrointestinal Surgery, Department of General Surgery, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Yan-Zhi Bu
- Department of General Surgery, Lianshui County People's Hospital, Huai'an, China
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20
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Shi M, Duan G, Nie S, Shen S, Zou X. Elevated FAM3C promotes cell epithelial- mesenchymal transition and cell migration in gastric cancer. Onco Targets Ther 2018; 11:8491-8505. [PMID: 30584315 PMCID: PMC6287415 DOI: 10.2147/ott.s178455] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Background Tumor metastasis is an important factor in treatment failure for advanced gastric cancer. Family with sequence similarity 3 member C (FAM3C) is known to play a critical role in inducing epithelial–mesenchymal transition in several cancer types, while its role in gastric cancer is unidentified. The aim of this study was to investigate the role of FAM3C in gastric cancer and provide new information on the receptor tyrosine-kinase pathway and cytokine-based therapies. Methods FAM3C expression was tested in human gastric cancer tissue and adjacent normal mucosa, and the prognostic effect of FAM3C was analyzed in data from the Cancer Genome Atlas (TCGA). The role of FAM3C in gastric cancer proliferation and metastasis was investigated in vitro and in vivo. Western blot analysis and immunofluorescence were used to detect the underlying mechanisms. Results FAM3C expression was increased in gastric cancer tissue and showed cytoplasmic distribution. Gastric cancer patients with FAM3C overexpression had significantly worse prognoses based on TCGA data. In the gastric cancer cell lines MKN45 and AGS, knockdown of FAM3C dramatically attenuated cell migration, but had almost no influence on proliferation, while exogenous FAM3C promoted cell migration in a cell line with low FAM3C expression. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment of TCGA data showed that FAM3C was mainly associated with genes involved in focal adhesion, extracellular matrix–receptor interactions and the PI3K–Akt signaling pathway. Knockdown of FAM3C in gastric cancer cell lines significantly suppressed epithelial–mesenchymal transition, as demonstrated by increased expression of E-cadherin and decreased expression of Snail and Slug. Furthermore, knockdown of FAM3C strongly suppressed activation of the PI3K–Akt signaling pathway. Finally, we confirmed that FAM3C knockdown significantly decreased metastatic lesions in vivo. Conclusion Our study demonstrated that FAM3C can promote gastric cancer metastasis both in vitro and in vivo. FAM3C should be taken into consideration for gastric cancer treatments involving inhibition of the ligands and downstream pathways of receptor tyrosine kinases.
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Affiliation(s)
- Mengyue Shi
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China, ;
| | - Guihua Duan
- Department of Gastroenterology, First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, China
| | - Shuang Nie
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China, ;
| | - Shanshan Shen
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China, ;
| | - Xiaoping Zou
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China, ;
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21
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Tu J, Zhao Z, Xu M, Chen M, Weng Q, Wang J, Ji J. LINC00707 contributes to hepatocellular carcinoma progression via sponging miR‐206 to increase CDK14. J Cell Physiol 2018; 234:10615-10624. [DOI: 10.1002/jcp.27737] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 10/18/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Jianfei Tu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
| | - Zhongwei Zhao
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
| | - Min Xu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
| | - Minjiang Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
| | - Qiaoyou Weng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
| | - Jiangmei Wang
- Department of Thoracic Surgery Huai’an Second People’s Hospital, The Affiliated Huai’an Hospital of Xuzhou Medical University Huai’an China
| | - Jiansong Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui Lishui China
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22
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Zhou L, Jiang H, Du J, Li L, Li R, Lu J, Fu W, Hou J. USP15 inhibits multiple myeloma cell apoptosis through activating a feedback loop with the transcription factor NF-κBp65. Exp Mol Med 2018; 50:1-12. [PMID: 30459344 PMCID: PMC6244212 DOI: 10.1038/s12276-018-0180-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/21/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022] Open
Abstract
USP15 has been shown to stabilize transcription factors, to be amplified in many cancers and to mediate cancer cell survival. However, the underlying mechanism by which USP15 regulates multiple myeloma (MM) cell proliferation and apoptosis has not been established. Here, our results showed that USP15 mRNA expression was upregulated in MM patients. USP15 silencing induced MM cell proliferation inhibition, apoptosis, and the expression of nuclear and cytoplasmic NF-κBp65, while USP15 overexpression exhibited an inverse effect. Moreover, in vivo experiments indicated that USP15 silencing inhibited MM tumor growth and NF-κBp65 expression. PDTC treatment significantly inhibited USP15 overexpression-induced cell proliferation, apoptosis inhibition, and NF-κBp65 expression. USP15 overexpression promoted NF-κBp65 expression through inhibition of its ubiquitination, whereas NF-κBp65 promoted USP15 expression as a positive regulator. Taken together, the USP15-NF-κBp65 loop is involved in MM tumorigenesis and may be a potential therapeutic target for MM. Researchers may have found a new target for treatment of multiple myeloma (MM), a common type of blood cancer. MM develops in plasma cells, white blood cells that fight infection, and is very difficult to treat. Ubiquitins, small regulatory proteins which tag proteins for destruction, have been implicated in development of many cancers. Jian Hou at Ren Ji Hospital and Weijun Fu at Changzheng Hospital, both in Shanghai, China, investigated how one ubiquitin, USP15, is involved in MM. Patients with MM showed higher levels of USP15, and MM cells supplied with additional USP15 multiplied more rapidly. Treating MM mice with USP15 inhibitors slowed tumor growth. Further investigation showed that USP15 interacts with another molecule known to be involved in development of many cancers. These results may help to develop alternative treatments for multiple myeloma.
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Affiliation(s)
- Lili Zhou
- Shanghai Jiahui International Hospital Cancer Center, Shanghai, 200233, China.,Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Hua Jiang
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Juan Du
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Lu Li
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Rong Li
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Jing Lu
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Weijun Fu
- Department of Hematology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China.
| | - Jian Hou
- Department of Hematology, Renji Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200127, China.
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23
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Huang JL, Cao SW, Ou QS, Yang B, Zheng SH, Tang J, Chen J, Hu YW, Zheng L, Wang Q. The long non-coding RNA PTTG3P promotes cell growth and metastasis via up-regulating PTTG1 and activating PI3K/AKT signaling in hepatocellular carcinoma. Mol Cancer 2018; 17:93. [PMID: 29803224 PMCID: PMC5970477 DOI: 10.1186/s12943-018-0841-x] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 05/02/2018] [Indexed: 12/12/2022] Open
Abstract
Background Dysfunctions of long non-coding RNA (lncRNAs) have been associated with the initiation and progression of hepatocellular carcinoma (HCC), but the clinicopathologic significance and potential role of lncRNA PTTG3P (pituitary tumor-transforming 3, pseudogene) in HCC remains largely unknown. Methods We compared the expression profiles of lncRNAs in 3 HCC tumor tissues and adjacent non-tumor tissues by microarrays. In situ hybridization (ISH) and quantitative real-time polymerase chain reaction (qRT-PCR) were applied to assess the level of PTTG3P and prognostic values of PTTG3P were assayed in two HCC cohorts (n = 46 and 90). Artificial modulation of PTTG3P (down- and over-expression) was performed to explore the role of PTTG3P in tumor growth and metastasis in vitro and in vivo. Involvement of PTTG1 (pituitary tumor-transforming 1), PI3K/AKT signaling and its downstream signals were validated by qRT-PCR and western blot. Results We found that PTTG3P was frequently up-regulated in HCC and its level was positively correlated to tumor size, TNM stage and poor survival of patients with HCC. Enforced expression of PTTG3P significantly promoted cell proliferation, migration, and invasion in vitro, as well as tumorigenesis and metastasis in vivo. Conversely, PTTG3P knockdown had opposite effects. Mechanistically, over-expression of PTTG3P up-regulated PTTG1, activated PI3K/AKT signaling and its downstream signals including cell cycle progression, cell apoptosis and epithelial-mesenchymal transition (EMT)-associated genes. Conclusions Our findings suggest that PTTG3P, a valuable marker of HCC prognosis, promotes tumor growth and metastasis via up-regulating PTTG1 and activating PI3K/AKT signaling in HCC and might represent a potential target for gene-based therapy. Electronic supplementary material The online version of this article (10.1186/s12943-018-0841-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jin-Lan Huang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.,Department of Clinical Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Shun-Wang Cao
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Qi-Shui Ou
- Department of Clinical Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Bin Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Shi-Hao Zheng
- Department of Neurosurgery, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Jing Tang
- Department of Internal Medicine-Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jing Chen
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yan-Wei Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Lei Zheng
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Qian Wang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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24
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Jeong J, Keum S, Kim D, You E, Ko P, Lee J, Kim J, Kim JW, Rhee S. Spindle pole body component 25 homolog expressed by ECM stiffening is required for lung cancer cell proliferation. Biochem Biophys Res Commun 2018; 500:937-943. [PMID: 29709477 DOI: 10.1016/j.bbrc.2018.04.205] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 04/26/2018] [Indexed: 12/14/2022]
Abstract
Accumulating evidence has shown that matrix stiffening in cancer tissue by the deposition of extracellular matrix (ECM) is closely related with severe tumor progression. However, much less is known about the genes affected by matrix stiffness and its signaling for cancer progression. In the current research, we investigated the differential gene expression of a non-small lung adenocarcinoma cell line, H1299, cultured under the conditions of soft (∼0.5 kPa) and stiff (∼40 kPa) matrices, mimicking the mechanical environments of normal and cancerous tissues, respectively. For integrated transcriptome analysis, the genes identified by ECM stiffening were compared with 8248 genes retrieved from The Cancer Genome Atlas Lung Adenocarcinoma (TCGA). In stiff matrix, 29 genes were significantly upregulated, while 75 genes were downregulated. The screening of hazard ratios for these genes using the Kaplan-Meier Plotter identified 8 genes most closely associated with cancer progression under the condition of matrix stiffening. Among these genes, spindle pole body component 25 homolog (SPC25) was one of the most up-regulated genes in stiff matrix and tumor tissue. Knockdown of SPC25 in H1299 cells using shRNA significantly inhibited cell proliferation with downregulation of the expression of checkpoint protein, Cyclin B1, under the condition of stiff matrix whereas the proliferation rate in soft matrix was not affected by SPC25 silencing. Thus, our findings provide novel key molecules for studying the relationship of extracellular matrix stiffening and cancer progression.
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Affiliation(s)
- Jangho Jeong
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Seula Keum
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Daehwan Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Eunae You
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Panseon Ko
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jieun Lee
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jaegu Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jung-Woong Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Sangmyung Rhee
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, 06974, Republic of Korea.
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